Conveyor, also named as transmitter, is a rubber and fiber and metal combination product that is used for loading and conveying materials. It is widely applied for transporting various kinds of solid material and powder materials. Conveyor can continuous, high efficiency, big obliquity transportation, and the safe operation, easy to use, easy maintenance, low freight and shortened the distance transportation, reduce the construction cost, save manpower. The daily use of the more is to pay attention to press a regulation strictly operation, and the daily maintenance are mainly used for the protection of the environment and the hardware to prevent the destruction of the system software. Programmable logic controller is functions of the logic control. It will come from all kinds of sports and function of the conveyor instruction in logical order, so they can accurately, coordination and orderly safety operation. In the meantime, it can send many kinds of information from the tools and working state to the transmitter and timely and exactly give further control order, in which way the control of the whole belt conveyor can be realized.

Speed by container in central usually main shaft and the speed of the motor machine to complete. It will motor speed matching into actual voltage value back to servo drive system as speed feedback signal, and instruction speed compared voltage value, so as to realize the precise control of the speed. Zhengzhou red star machinery factory specializing in the production of drum dryer, sand the dryer, drum dryer, sand drying apparatus mine machine equipment, the company relies on a strong research and development and production strength, has become one of the few domestic crushing, system of mechanical sand export base. Here should pay attention to the non-timing feedback voltage matching connection, and do not remove speed measuring machine. The cause of the speed control are due at the non-timing feedback line or break line be caused by. The central position of the earlier machine tool use linear or circular synchronous sensors or rotating transformer, and modern machine tools themselves

With grating feet and digital pulse coder as position central components, they coordinate transformation of machine tool in the operation of the actual position directly or indirectly central, will be the central values to Henan vibrating screen and feedback with instruction compared to coordinate the displacement until instruction position, so as to achieve precise control of the position. Position loop possible fault for more hardware failure, such as position central components to be contaminated, wire connection problem and so on.

07-02-2012 om 06:36 geschreven door annazhao356  

At present, there are more than forty companies that are manufacturing vertical drying machine. When choosing such a device, many customers only pay attention to its superior characteristics but not give attention to its limits, because any kind of machinery has it own application scope but nor all-purpose applicable. For this reason, many problems occurred in its using process, and to make things worse, some equipment is idled even after using for several months.

1. First problem is very common, that is when purchasing, and the specifications of the dyer machine is too small. In a cement plant in Sichuan Province, the company purchased from a manufacturer, the production company said that the production capacity can reach twenty tons every hour, but in actual use, the output ability is only fifteen tons for each hour. When we look into the reasons, we find that the manufacturing enterprise purposely decrease the specifications with the view of successfully doing the business with low prices which in the end brings loss to the using corporation.

2. Material baking is not stem, yield of not to come. Material baking not stem, in drying slag moisture content is lesser, the effect is good, if baked some, such as clay, fly ash, etc material especially prominent. A cement plant in Yunnan choose a company a φ 2.2 * 14 in the purchase, production manufacturer when baked clay speak up to 15 tons /, the actual production of only 5 tons /, the contrast is bigger. Investigate its reason:

(1) moisture content really is on the high side, stay time enough;

(2) the drying system equipment is not reasonable, can not be education moisture;

(3) manufacturers can't master good drying original parameters.

PF series impact crusher is widely used in various metallic and nonmetallic ores, cement, abrasive material, glass, construction material, machine-made sand, metallurgy, etc. Impact crusher is also applicable to crush various stones with different hardness in medium and fine crushing area, such as used in iron ore crushing plant, non ferrous metal, emery, bauxite, quartz sand, basalt, etc. PF series impact crusher for sale is usually used in secondary crushing processing, subsequent the primary crusher-jaw crusher.

Since ground minerals are the major raw-materials used in various items like ceramic industries, Chemical, Metallurgical industries etc, the industrial demand of these products is ever increasing all over the country. Despite the fact that there are many registered and non-registered units operating in the country, there is enough scope to later the need of industrial sector. Reportedly, these are so many supplier’s traders and agents who supply the ground minerals to the existing industries from outside the state. Hence a stiff market competition in this sector is never ruled out. But maintenance of customer’s specification to their satisfaction uniform quality, supply schedules and payment terms are the key to open vast marketing opportunities for new unit in this field.

07-02-2012 om 06:36 geschreven door annazhao356  

Henan Hongxing Company is the leading professional supplier solution,equipment and service for grinding industry.In past 20 years,bearing the enterprise aim of'Better quality,Better service', Henan Hongxing has obtained an enviable reputation from the customers over 140 countries in the world.Shanghai Zenith are experts in the design and manufacture of grinding mill equipment like Ball Mill ,Vertical Roller Mill,MTM Trapezium Mill,Raymond Mill,mill for the mining,grinding and chemical industries.

Recently, experts from several years in the company's efforts, invented a new ball mill for all grinding and milling needs. A classic piece of equipment for any lab is the ball mill. As we know, this piece takes care of general grinding and milling, but here at Retsch, we see our ware not only as a simple pulverizer, but as a precision instrument with exact communition properties - giving you precision results every time, without the variation that you cannot afford.

Throughout our nine decades in the business of providing our customers with quality products, we have developed methods and techniques of ensuring that what we produce is of the highest quality, and that our customers can carry on with their work, using our products. One way we have done this is our continual, working relationships with universities and research centers; this allows us to stay within the world of research, the world of cutting edge development. With this knowledge, we are able to provide the best build quality, and thus the best product for our customers.

07-02-2012 om 06:35 geschreven door annazhao356  

Quartz sand is a kind of silicate minerals, hard, wear-resistant, chemical stability, the main mineral component is SiO2,its color is white or colorless, translucent, hardness 7, brittle, shell Shaped fracture, oil sheen, density 2.65, its chemical, thermal and mechanical properties have obvious anisotropy, and do not dissolve in acid, slightly soluble in KOH solution, melting point 1750 ?. Quartz sand is an important industrial mineral raw materials, non-hazardous chemicals, widely used in glass, foundry, ceramics and refractories, smelting ferrosilicon, metallurgical flux, metallurgical, construction, chemical, plastics, rubber, abrasive and other industries.

Ball mill is a critical equipment in the quartz sand production. In the processing of quartz sand for glass and ceramics industry, raw materials needed to avoid contamination by other substances, usually with silica liner or white alundum liner, grinding media also need to use White alundum ball or silica ball. Therefore, SiO2 is the main component of two types of liner and grinding media, avoiding contamination of the processing materials. Can overflow type or grid type, long or short type, wet ball mill or dry ball mill, sieving grading to control the particle size of materials needed.

Zhengzhou Hongxing company offers various crushers, such like jaw crusher, impact crusher, cone crusher, vsit crusher,stone crusher,hammer crusher,rock crusher and so on,we even products milling machine such as grinding mill.roller mill,hammer mill and raymond mill. When you need complete superior crushing solutions designed to handle reinforced concrete and asphalt to produce clean, saleable aggregates, count on shanghai zenith company as your single source supplier for equipment, applications expertise and product support.

07-02-2012 om 06:35 geschreven door annazhao356  

Hongxing Machinery is now offering a complete range of mining equipment. The manager said, “through technology, quality and service Hongxing Machinery designs engines of world-class factory and aftermarket offers a unique support throughout the life of equipment.”

With completion of this transaction, Hongxing Machinery has expanded its geographic presence, diversified product portfolio and positioned the company as a global organization more competitive. Hongxing's accessible market doubles approximately 5 billion U.S. dollars to more than 10 billion U.S. dollars. “This transaction is a natural extension of our current activities, we are a company with a proud history, supported by hard working, loyal employees of mining, excited,” said Yang. “We have our long-held value of safety, customer orientation and greater reliability in the workplace.”

Henan Hongxing portfolio now consists of walking draglines, electric rope shovels, hydraulic excavators, the world’s largest off-highway haul trucks, Highwall miners underground Longwall systems, room and pillar mining and transportation systems and a complete range of machines and exercise belt system for all applications mining. Zhengzhou Hongxing unrivaled suite areas, and undergroundmining equipment “support combined with parts of the superior, and aftermarket products consumption in the whole world.

06-02-2012 om 08:33 geschreven door annazhao356  

In mine machinery,Many criteria need to be considered in selecting the appropriate equipment for a particular mining operation. The most important factors to consider are safety, strength and durability, though cost can be a major aspect.

There is a vast range of mining equipment available, dependent on the application for which it is to be used. Underground mining, surface mining and open pit mining all require the initial movement of large quantities of earth. This equipment is similar to that used in large building projects, in the form of dump or haul trucks, diggers or shovels, back hoes and cranes. The extraction of ore requires a different collection of mining apparatus. Ore crushers, explosives, separators and other devices complete the full complement of necessary mining equipment. It is vital to remember that personnel are the fundamental aspect of any mining operation and their safety is paramount. Essential mining equipment must also include safety supplies, such as hard hats, ear defenders and respirators, to prevent employees form injuring themselves (or each other) whilst working in hazardous conditions.

Heavy duty earth moving equipment can be bought direct from specialist manufacturers who focus on loaders, trucks, drills and scrapers. Other companies offer leased rebuilt / used mining equipment by major manufacturers. Many mining equipment manufacturers make ore extraction equipment. Some specialise in air compressors concentrators and tunnel boring machines, whist others produce conveyors, crushing plants and hoppers. Specialist underground mining equipment manufacturers offer an extensive range of pallet handles, tow tractors, belt drives, radial stackers and power packs. Several manufacturers produce a range of health and safety products. Some specialise in respirators, hearing protection, gas detectors, fall protection devices, hard hats and goggles, while others offer an assortment of specialised flags and lights for use inside mines, along with rescue equipment for both underground and surface mines.

A mining undertaking can often be large and complex. In order to ensure a project progresses efficiently, safely and is completed in a timely fashion, sufficient supplies and equipment must be made constantly available. For speedy service and extensive choice of products, the Internet is an excellent choice for the purchase of mining equipment. Many mining equipment manufacturers and distributors have detailed specifications and photos of their inventory on their websites and there should be few problems in locating the appropriate tools and equipment for any mining project. New equipment can be bought directly from its manufacturer, though it can be a good money saving exercise to peruse the used and / or refurbished equipment offered by many manufacturers. Other firms specialise in the hire of mining equipment and dependent on the available capital, this may be a preferable option to outright purchase.

06-02-2012 om 08:33 geschreven door annazhao356  

Crawler mobile crushing plant is a new type of mobile crusher which integrates with the advanced and stable technology in the world. Its successful production is the important milestone for the crushing industry in China. Meanwhile, it is also the historic breakthrough of technology development for Chinese mobile crusher. This technology fills up the gap of Chinese high-end mobile crushing equipment, and rewrites the past that this kind of equipment at home depends on import for a long time.

Crawler-type mobile crushing plant gathers material receiving, crushing, transport and other processing equipment as a whole. It will have the first-class crushing performance for rock crushing, aggregate production, strip-mining by the optimization of process flow. The union of different machine types can form a powerful assembly line of crushing work, and finish required processing work. Moreover, it has the advanced design, excellent performance, high-efficient production, convenient maintenance, economic operating cost and reliable system. Compared with all kinds of stationary crushing plants, mobile crushing plant is a movable small and medium crushing processing factory. Its work efficiency and operating cost are superior to the same level or higher level stationary crushing plant.

Crawler-type mobile crushing plant is a kind of efficient crushing equipment, which adopts self-drive mode, possesses advanced technology and complete function. Under any terrain condition, this equipment can get to anywhere of work place, in this way, it can decrease the operation to the material, in addition, it is also convenient to comprehensively assist the coordination of mechanical equipment. By the control of wireless remote, it is easy to place the crusher to trail car and transport to the operating site. Because it does not have to spend on assembly time, therefore the equipment can throw into work immediately when it arrives at operating site. Jaw plant is of uniform finished material size, high production rate and crushing ratio, in addition, its optimal design can satisfy the most needful technical characteristics for crusher.

Crawler-type mobile crushing plant gathers material receiving, crushing, transport and other processing equipment as a whole. It will have the first-class crushing performance for rock crushing, aggregate production, strip-mining by the optimization of process flow. The union of different machine types can form a powerful assembly line of crushing work, and finish required processing work. Moreover, it has the advanced design, excellent performance, high-efficient production, convenient maintenance, economic operating cost and reliable system. Compared with all kinds of stationary crushing plants, mobile crushing plant is a movable small and medium crushing processing factory. Its work efficiency and operating cost are superior to the same level or higher level stationary crushing plant.

Crawler-type mobile crushing plant is widely used in many fields, such as the crushing for construction waste, rock, asphalt concrete and other aggregates. Otherwise, this equipment attaches the power unit with machine. The Optimal Design can carry out climbing work and meet the crushing need such as mine, hydropower, coal mine etc. For the environmental protection, the noise silencer of mobile crushing and screening plant is the best noise absorption system. This equipment is compact and flexible. It can satisfy the construction waste crushing work in the urban area. The valid dedusting system, feasible diesel noise unloading system and release system can control remotely and expel the obstacle of mobile crushing and screening plant. The Pre-screening equipment improves greatly the efficiency of crushing.

The production of crawler mobile crushing plant confirm that the development of crushing equipment has appeared the trend of digitization, parallelization, integration and better educated at present. Among that, digitization has become the core technology for rapid innovation. The progress of information technology propels the development of “unmanned crusher”.

06-02-2012 om 08:33 geschreven door annazhao356  

A shortage of qualified workers for the mining industry has the Iron Mining Association of Minnesota worried.

Duluth, MN - (Northland's NewsCenter) - The growing Northland mining industry, in conjunction with an impending flurry of baby boomer retirements, is creating a significant worker shortage.

Industry spokespeople say they're concerned about the Range finding the thousands of qualified technical workers it's expected to need over the next few years.

'Almost 40-percent of the people working in the mines can retire at this time...so we actually have a work force shortage,' says President of the Iron Mining Association of Minnesota, Craig Pagel.

One of the biggest problems is finding enough qualified applicants for the positions.

'You might find one out of 40 qualified. You might have a couple of job openings and over 400-people will apply and it gets weeded out pretty quickly because they do not one have the job set skills that they need, they might not have the education that they need,' Pagel says.

As the mining industry evolves on the Iron Range, employers are demanding more from job candidates.

'They're really struggling to find hundreds of people that have very specialized training,' says Regional Labor Analyst for DEED, Drew Digby.

Years ago a high school graduate could get a job working in the mines...but not these days.

Currently a qualified mine worker needs to have at minimum of a two year degree.

'What we're finding is, many cannot pass an 8Th grade reading comprehension, they can't pass 8Th grade math skills sets...but more importantly is attitude and the fact that many of them cannot pass the background checks and drug tests...it's a real concern,' Pagel said.

'One of the things you keep hearing from the mines is they want someone who has all those great, old school technical abilities, they ability to work with things and get your hands dirty, but also handle really specialized equipment...some things with a lot of computer assistance,' Digby says.

The Iron Mining Association has been working with the Northeast Minnesota higher education and state lawmakers to develop curriculum's for high school juniors and seniors so they can get college credit even before going to university and have a better understanding of what's needed to be a modern mine worker.

'These are very good paying jobs. Some of the starting salary jobs in the mine's, on an hourly type of job is 26-dollars an hour, plus benefits,' Pagel said.

An attractive annual salary of around 54-thousand dollars a year.

Pagel said there are about 175 service sectors that belong to the IMA, along with the mines, that supply products and services on a daily basis, who are also concerned about the lack of a qualified workforce.

06-02-2012 om 08:33 geschreven door annazhao356  

Minister of Land and Resources recently held China International mining Conference, said China is committed to scientific development, continue to adhere to save low resources consumption, little environmental pollution and the new road to industrialization. 'scientific development, promote green mining' is a new path of industrialization in China mineral resources in the field of concrete embodiment. Here, the green mining industry has become the most eye-catching words, the reason for it visible, because it is China's economic development, because it is in line with the direction that mining industry calls for the requirements of energy conservation advocacy and environmental protection development.

The so-called 'green mining' refers to the disturbance in the mine environment is less than the premise of the capacity of the regional environment to achieve optimal exploitation of mineral resources and the environment are minimized. Implementation of green mining industry there are three stages: First, the regional environment through the development of capacity or former capacity evaluation and mine environmental assessment and disturbance, the establishment of environmental evaluation index system and technical standards, to develop green mining plan; but through technological innovation, optimize Process, to achieve mining, dressing, smelting and refining process, a small disturbance, no poison and less pollution; Third, through the mining environmental management and ecological restoration, to achieve minimum environmental disturbance and ecological reconstruction optimization. We say that the development of green mining is the voice of the times, China's economic development, it is not groundless, but evidence-based. Over the years, our economy has been growing rapidly though, but we also paid a high price, called a lot of fees. Relevant data show that the country due to ground subsidence due to mining to 180 locations with more than 1,600 pit collapse, subsidence area of over 1150 square kilometers. The collapse of the national mining subsidence disaster occurred nearly 40 cities, causing serious damage to the 25 annual ground subsidence due to mining, the loss occurred up to 4 billion. The mining, ore mining 6 billion tons per year the amount of disturbance of the Earth's environment, induced the mountain crack, collapse, landslide, debris flow, earthquake and other geological disasters. These figures are shocking, but in order to change this situation, to promote green mining industry is the best way.

06-02-2012 om 08:32 geschreven door annazhao356  

With the progress of accelerated urbanization construction, the construction waste has been became a problem that impede city development. As the main equipment processing construction waste, the jaw crusher from China made great contribution to the construction industry. Construction waste is entirely possible to be recycled by jaw crusher from China. Scrap steel, scrap steel and other scrap metal materials can be processed and directly reused or recycled. So the demand for jaw crusher from China in the construction market has been increased in 2011. In 2012, HXJQ will take more efforts to develop and research new type jaw crusher to meet the need of different consumers.

For the waste concrete, people can use jaw crusher from China as the coarse crushing step, the processed construction waste can be used to be the base of road. As well as other building materials, such as floor tile, wallboard and concrete material. Because construction waste dumping more concentrated, the site is limited, and transportation is not very convenient, many consumer suggested use of jaw crusher from China. This jaw crusher produced by HXJQ company can be used for a variety of large-scale multi-stage crushing bulk materials. The jaw crusher from China can save a lot of infrastructure and relocation costs.

02-02-2012 om 04:23 geschreven door annazhao356  

China's hydraulic mining machinery industry and the world advanced countries there is a gap, and the gap is our great progress space, in order to be able to reach the world advanced level, only recognize the difference, the gap from place to start, and constantly improve their standards in order to continuously improve our ability of hydraulic mining machinery. Let us first analyse our country and the advanced countries in the world in hydraulic mining machinery industry gaps.

Hydraulic network of excellence senior consultant hydraulic Li Gong from the current point of view, the domestic mining industry science and technology foundation is thick, and the field of the mining machinery has been change a technology with the market as a way to improve the level of product technology is not phase, and to face the foreign competitors, especially the foreign competitors in the domestic investment and set up factories in the grim situation. Therefore, the domestic mining machinery enterprise innovation consciousness forced excitation.

Domestic major mining machinery R & D and exporters in Shenzhen city of God extension mechanical and electrical equipment limited, enterprises in the face of domestic and foreign innovation competition of enterprises, after years of rapid adjustment, now Shanghai state of the world has been established, complement and perfect the advantage domain application research and development base, launched to crusher, milling machine and system sand machine as the main products, manufacturing process and process technology application research. Shanghai world Bang after the pioneering and innovative ways, practice, research and development of new products, to meet the mineral resources of mining machinery made more specific, more explicit content of innovation, in recent years the company's R & D results: tracked mobile crusher station, a mobile mobile crusher station, PFW European version of deep cavity hydraulic crusher, JC the European version of jaw crusher, cone crusher, CS HPC hydraulic cone crusher, sand making machine, the new VSI VSI5X centrifugal impact crusher, V.W high grade stone shaping machine, MTW Euro trapezium mill, LM large vertical milling machine, SCM superfine milling machines and other equipment are energy saving, water saving type, comprehensive utilization, environmental protection of mining machinery products, and can give the operators to create a safe and comfortable work environment.

So, our country and international developed country the main reason of difference of existence or technical level. China in the innovation and international developed country manufacturing level is still a gap in the domestic challenges, so great. Domestic and foreign mining machinery gaps exist for many reasons, including market demand differences are caused by a gap between the objective reasons, due to the international market for excellent mining machinery manufacturers focus areas in Europe and the United States, where large-scale basic construction stage has in the past, the market for aggregate demand is not much, and environmental protection requirements are high, certainly will forms gravel field height focus on large-scale production to achieve environmental protection, they required mining machinery specifications, strong maneuverability, high automation process think. To meet the market demand for the development of the mining machinery and domestic product is not the same as, as we are at the large scale infrastructure throughout the period, the demand for mineral resources mineral resources increase, investment caused by heat, blossom everywhere mines are often small in scale, but started fast, less investment, the market demand so crudely made, technology level is low, energy consumption high, serious environmental pollution products have entered, but these devices are often only at low prices to capture the market, so with the international advanced level difference.

02-02-2012 om 04:22 geschreven door annazhao356  

In 2002 December 4-5 day, by the Ministry of science and technology of high technology research and development center is sponsorred, Shanghai automotive industry (Group) Corporation, Tongji University, Shanghai fuel cell power system limited company, the United States the Natural Resources Defense Council, Shanghai Shen Zheng International Business Consulting Co., Ltd. 'in Shanghai fuel cell vehicle and parts technical international seminar' in Shanghai World Expo conference Le Grand Large Hotel, this is the last year, the State Ministry of science and technology held in Shanghai 'twenty-first Century fuel cell technology International Symposium' around the fuel cell vehicle and its surrounding technology also held a large international exchanges and cooperation conference. The United States Department of energy, the United States of America fuel cell Advisory Committee, American An Gong National Laboratory, Princeton University, USA USA California Air Resources Board, the United States of America GM, Toyota, Mitsubishi Motors of Japan Research Institute, global fuel cell Advisory Committee, the UK, Canada letter million Zhuang Feng staudte energy systems and other foreign government departments and the well-known domestic enterprises, Tsinghua University, Tongji University, 'Plan 863 electric cars, buses and special overall group', Chinese Academyof Sciences, Dalian Institute of Chemical Physics Beijing green speeding to power technology limited, the Ministry of information industry twenty-first, Shanghai power limited company of science and technology, the automobile enterprises, relevant research institute, University and from 180 home, foreign enterprise, University and the research unit of nearly 200 delegates to attend the meeting.

This second conference dimensions big, technology exchanges and cooperation will be deeper, wider, around the fuel cellvehicle related vehicle engineering, fuel cell power platform component technology, hydrogen storage, hydrogen and fuel cell technology and domestic development trend spread out extensive, in-depth study.

Congress two days from home, nearly 40 reported speaking or writing, in which the United States of America experts introduced American government the development of fuel cell car policy, laws and regulations; Toyota introduced its development of fuel cell car products and technology; Canadian experts in hydrogen refueling and infrastructure construction technology and experience. The Chinese government according to the strategy of sustainable development, attaches great importance to the development of electric vehicle. In the 'eight five' period, the State Science and Technology Commission will electric car projects included in the national major project of industry of science and technology, develop concept electric car research, in Guangdong Shantou city established the national electric vehicle test demonstration zone, and the electric automobile policy, regulations and technical standards of.

The 'fifteen' period, our country government already will electric car is included in the national twelve major science and technology projects, established the '863 electric cars special major science and technology', will invest 2400000000 yuan, among them the national finance allocates funds 1000000000 yuan, place and enterprise funds 1400000000 yuan, mobilize all relevant professional technology tackles key problem in coordination, strive for in electric vehicle, hybrid electric vehicles and fuel cell vehicles technology breakthroughs, and realize the industrialization of electric vehicles Electric vehicles will be in Ministry of national science and technology research and development on the basis of 'Nine Five', 2003-2004 launched electric car products in small quantities, and in particular areas of commercial demonstration operation. Hybrid electric vehicle development focuses on the development of hybrid electric bus, to improve the public transportation and city long-distance passenger transport fuel economy, planning was completed in 2005 2006 product development, market.

Fuel cell vehicle in our country is great and special research focus, plans within the next 5 years in research and development of fuel cell bus, car powertrain and vehicle, in the 2008 Beijing Olympic Games demonstration operation. Although electric vehicles, hybrid electric vehicles and fuel cell vehicles electric vehicles is three kinds of different types, but in a battery, an electric drive system and energy management system has a common characteristic, our country put these three key technologies of unified planning, key research. At the same time, '863 electric cars special major science and technology' in promoting the development of electric vehicles the policies, regulations and technical standards and other aspects of in-depth research, for our country to make the relevant policy, laws and regulations provide a basis.

02-02-2012 om 04:22 geschreven door annazhao356  

Belt conveyor is a kind of friction drive by the continuous mode transportation machinery materials. Application of it, the material can be in a transmission line, from the initial material to the final point of discharge is formed between a material conveying process. It not only can be broken loose material conveying, can also be carried into pieces of goods transportation. In addition to the pure material handling, but also with various industrial enterprise production process in process requirements are matched, formation of rhythmic flow transport line. The belt conveyor is widely used in modern industrial enterprises.

In mine underground tunnel, mine transportation system on the ground, open pit mining field and ore dressing plant, widely used in belt conveyor. It is used for transport or incline transportation. Common belt conveyor by the conveyor belt, roller, roller and a driving, braking, tensioning, modification, loading, unloading, to cleaning device.

Belt conveyor technology:

The first is the reliable operation of belt conveyor. In many continuous operation of the important production units, such as power plant of the transportation of coal, iron and steel plant cement plant and bulk material conveying, and port handling of ships were using belt conveyor. In these occasions such as shutdown, the loss is huge. When necessary, belt conveyor can be a class with a class of continuous work.

Belt type conveyer power consumption is low. Due to the material and the conveyor belt with almost no relative movement, not only make small running resistance (about the scraper conveyer 1 / 3-1 / 5), but also to the load of attrition and fragmentation are small, high productivity. These are beneficial to reduce the production cost.

Belt conveyor line adaptable and flexible. The length of the line is set according to the need. The short several meters long, can reach more than 10km. Can be installed in a small tunnel, also can be mounted on the ground traffic chaos and danger area in the sky.

According to the process requirements, belt conveyor can be very flexible to from one or more points by feeding. Can also provide more or sections of unloading. When simultaneously at several points to the conveyor belt material (such as coal washery coal bunker under the conveyor belt conveyor) or along the length direction on either through uniform feeding device to feed conveyor, belt conveyor has become a major transportation route.

Belt conveyor in coal storage yard stockpile below the roadway reclaimer, when needed, but also the different material for mixing pile. The material can be simply from the conveyor head unloading, also available through plough type unloader or mobile unloading vehicle in the length direction of the conveyer belt with any point discharge.

Screw conveyor or auger, suitable for granular or powdered material conveyor of the horizontal, inclined conveyor, vertical conveyor and other forms of. Transmission distance varies according to deformity, usually from 2 meters to 70 meters.

Principle of transport: rotation of the auger blade passage for the material screw conveyor. The material and the spiral conveyor leaf rotation force is the material of its own weight and screw conveyor casing material friction resistance.

Structural features: screw conveyor rotating shaft is welded with a helical blade, blade face delivery of materials according to different entities of type, belt type, leaf type and other types. The spiral shaft of the spiral conveyer in the direction of the material movement of the terminal with the thrust bearing with material to spiral axial force, the captain a long time, should be added the middle suspended bearing.

Double screw conveyor is two are respectively welded with the rotation of the rotary blade shaft of screw conveyor. Bluntly, is two screw conveyor are organically combined together, form a spiral conveyer.

Screw conveyor rotation axis of rotation to, determines the material conveying direction, but generally screw conveyor in the design are designed according to individual carrier rotating blades. When the reverse transmission, can greatly reduce the conveyor life.

Bucket elevator: using uniform is fixedly connected to the endless traction member on a series of vertical lifting material hopper, the continuous conveying machinery.

Bucket type lifting machine has large conveying capacity, high lifting height, stable and reliable operation, long life advantages, its main properties and parameters with the JB392685 'vertical bucket type lifting machine' (the standard equivalent with reference to the international standards and advanced foreign standards), traction chain with MT3680 'mining high strength ring chain', the lifting machine for conveying powdery, granular and small block of wear resistance and wear resistance of small material, such as: coal, cement, stone, sand, clay, minerals, due to traction hoist is a circular chain, thus allowing delivery of high temperature of the material (the material temperature not exceeding 250 degrees Celsius). General transport height up to 40 meters.

02-02-2012 om 04:22 geschreven door annazhao356  

Recently, non-ferrous metals industry, the introduction of macro-control policies frequently, mine as the source of the industrial chain, energy saving throughout the process in an important position. Mining machinery as a practitioner of energy saving, the efficient use of resources will greatly facilitate the re-use of mines, not only take resource-saving and environmental protection-oriented sustainable development, and reached the 'two sessions' advocated taking carbon reduction row of the policy requirements.

Investment Advisor in Senior Fellow in China, said He, the data show, the annual international mining machinery in the rising value of the state, but the Stock Watch the domestic market is still small, is typical of inward-looking. Although the domestic market is vast, but in an increasingly competitive international market, the domestic mining machinery is still in a weak position. This weakness is mainly reflected in the large but not strong, despite the variety of industries, production has reached a certain amount, but the overall quality and innovative technology breakthroughs, there are still large obstacles.

The next round of price war is the war developed, the product chain and service competition, channel competition, competition and other business conditions are the subject of future international competition, domestic mining machinery industry, diversification of the status quo is not enough to enter the competitive market, Therefore, during the second five, the domestic mining machinery market will enter a new phase of the upgrade. Large market and demand in the Chinese market are transferred to the case, among the Chinese market will be the forefront of the international market.

According to the Investment Adviser's '2010-2015 China mining machinery industry investment analysis and forecast report' shows that the world's top ten manufacturers of mining machinery accounted for 85% market share, control of the whole industry is concentrated in a few companies. From the world's mining machinery industry in the future development trend, the natural environment for the harmonious development requires mining machinery 'eco', the product throughout the life cycle does not produce environmental pollution or environmental pollution, minimize the maximum resource utilization, the lowest energy consumption, the ultimate economic and social benefits to achieve the coordination of business is the company's future development.

Investment Advisor in the Research Director Zhang Yan Lin pointed out that the construction machinery market is a financial services industry through a variety of channels into all aspects of the same, in terms of mining machinery, finance leases in the sale of shares in the proportion is increasing year by year, in accordance with international Analysis, part of the mining corporate finance leasing business has accounted for 60% of the sales market over the next period of time, domestic enterprises will use this as the goal, to develop financial services, mergers and acquisitions boom gradually approaching, the domestic market or mining machinery will face more opportunities and challenges.

02-02-2012 om 04:22 geschreven door annazhao356  

Construction machinery concrete machinery as important board piece, huge market demand and industry rapid development, promote enterprise to accelerate investment market, with the acceleration of investment, the competition between enterprises is growing. At present, the market's investment to the irrational development trend, market worries still strong. Investment in infrastructure drop basis, despite fears rise, bibcock enterprise investment growth unabated.

The consultant in machinery industry researcher Duan Jiaxuan pointed out, the two quarter construction machinery market economy glides, the market in the hope that the second half of the year the protection of housing construction accelerated, from at present the market guarantee the progress of housing construction as well as the present situation observation, bittersweet. Benefit from our real estate and infrastructure investment grows quickly continuously, concrete machinery growth expectations, this once again highlighted our country rely on heavy industry to promote economic growth is inertial still exist.

The investment adviser of director Zhang Yanlin pointed out, and the corresponding, mining machinery is still more optimistic about the prospect of the industry sectors, mining equipment industry grows to basically rely on infrastructure investment, due to China's rapid development of economic construction, include highway, railroad, real estate, the project is more still, some time in the future inside, maintain a certain level of infrastructure investment in 2012 will be the main development power of mining equipment industry.

According to the investment adviser released '2011 - 2015 China machinery industry investment analysis and forecast report' shows, in the fierce competition in the market, market expansion is the enterprise uses generally competition, market is accelerated, competition also accelerated, and there is growing trend. Shantui, willow worker enters, plus a group of concrete machinery industry growing, with 'seek hegemony' of concrete machinery industry for many years the industry hutch Zoomlion, Sany formed face the competitive situation.

02-02-2012 om 04:22 geschreven door annazhao356  

Recently, non-ferrous metals industry, the introduction of macro-control policies frequently, mine as the source of the industrial chain, energy saving throughout the process in an important position. Mining machinery as a practitioner of energy saving, the efficient use of resources will greatly facilitate the re-use of mines, not only take resource-saving and environmental protection-oriented sustainable development, and reached the 'two sessions' advocated taking carbon reduction row of the policy requirements.

Investment Advisor in Senior Fellow in China, said He, the data show, the annual international mining machinery in the rising value of the state, but the Stock Watch the domestic market is still small, is typical of inward-looking. Although the domestic market is vast, but in an increasingly competitive international market, the domestic mining machinery is still in a weak position. This weakness is mainly reflected in the large but not strong, despite the variety of industries, production has reached a certain amount, but the overall quality and innovative technology breakthroughs, there are still large obstacles.

The next round of price war is the war developed, the product chain and service competition, channel competition, competition and other business conditions are the subject of future international competition, domestic mining machinery industry, diversification of the status quo is not enough to enter the competitive market, Therefore, during the second five, the domestic mining machinery market will enter a new phase of the upgrade. Large market and demand in the Chinese market are transferred to the case, among the Chinese market will be the forefront of the international market.

According to the Investment Adviser's '2010-2015 China mining machinery industry investment analysis and forecast report' shows that the world's top ten manufacturers of mining machinery accounted for 85% market share, control of the whole industry is concentrated in a few companies. From the world's mining machinery industry in the future development trend, the natural environment for the harmonious development requires mining machinery 'eco', the product throughout the life cycle does not produce environmental pollution or environmental pollution, minimize the maximum resource utilization, the lowest energy consumption, the ultimate economic and social benefits to achieve the coordination of business is the company's future development.

Investment Advisor in the Research Director Zhang Yan Lin pointed out that the construction machinery market is a financial services industry through a variety of channels into all aspects of the same, in terms of mining machinery, finance leases in the sale of shares in the proportion is increasing year by year, in accordance with international Analysis, part of the mining corporate finance leasing business has accounted for 60% of the sales market over the next period of time, domestic enterprises will use this as the goal, to develop financial services, mergers and acquisitions boom gradually approaching, the domestic market or mining machinery will face more opportunities and challenges.

02-02-2012 om 04:22 geschreven door annazhao356  

Mountain mechanical applications and infrastructure are closely related, the future will have a huge market. However, industry believes that the overall mining machinery in China with the international advanced level compared to 15 to 20 years behind most sources of technology products for the mid-1980s from abroad. Domestic market share of mining machinery products in the market less than 80% in the imported products are mostly large, fine, sharp and strong sets of products, such as coal mining, large efficient separation equipment, crushing and grinding equipment, all joint cross-section boring machine and other products.

Mining machinery industry's technological base is not strong, reform and opening up, has been in the field of mining machinery market for technology to improve product technology level as the main way. Throughout the world the development of mechanical design process, mainly stand-alone single product design to product design to process equipment design process evolution. China's general mining machinery manufacturing completed only stand-alone product design and manufacturing equipment used in the design process to do by a professional institute, the craft of stand-alone product requirements proposed by the professional design institutes and assist manufacturers to complete, which resulted in equipment manufacturer and device disconnect between departments. Experts believe that in the current mining machinery manufacturing industry, the business process design is relatively weak in the case, good condition, except in their own areas of expertise into the role of organizational strength as soon as possible, should be taken with foreign and domestic companies to establish various forms of professional institute joint, including the formation of groups, unions, the introduction of technology, the introduction of qualified personnel and other measures to fight in a joint project on the design approach, the first intervention and then to improve and achieve win-win situation.

In addition, experts suggest that as quickly as possible, to supplement and improve the application of the advantages of professional laboratory for product, manufacturing process and process technology research. Not applied technical research data and databases, you can not convince customers to use the company's products and technology, not to mention the truly innovative application of technology.

02-02-2012 om 04:21 geschreven door annazhao356  

Based on the actual characteristics of the situation in the mining machinery, oil is very strict on the requirements, as follows:

First: As the volume of mining machinery and its fuel tank volume are relatively small, so it is easy to appear the work of a high oil temperature, which requires oil to have better oxidation resistance and thermal stability.

Second: Because the gravel mining machinery working environment is very harsh, dust, water was relatively large, oil is vulnerable to the contamination of impurities in the external environment, so the oil must have a good anti-rust and anti- corrosive. Only in this way by the outside world when the oil in the case of adverse environmental impact, its performance will not have significant change.

Third: the working environment of mining machinery and equipment is usually outdoors, so the work environment affected by temperature changes, especially the large temperature difference between summer and winter, day and night temperature difference in some areas is relatively large, so the oil viscosity must be less affected by temperature, this area requires high temperature, it will not lead to too low viscosity, but not the line as a lubricant, the other is to avoid the temperature is low, a result of low oil viscosity Start with the operation difficult.

Fourth: There are some easy fire or explosion mining machinery, of course, requires a certain degree of anti-flammable oil, mineral oil can not be used to fuel for lubrication.

Fifth: The last is certainly better than the seal lubricant to prevent seal damage and impact on the effect of lubricating oil. Lead to some unnecessary risk.

02-02-2012 om 04:21 geschreven door annazhao356  

As people know, mining industry is treated as the most difficult and dangerous economic activities.

It's the products of this activity that allow society to function the way it does today. One can only imagine what life would be like without the products of mining. Daily activities would be hindered without the production of natural minerals and coal; not to mention its effects on economic activity. Luxuries like jewelry also come as a result of the mining of precious metals.

Methods have developed greatly over the centuries. Matter of fact, major developments happen on a daily basis. New sciences and technologies allow the industry to grow and provide more for the world. Many people are unaware, however, of the methods and procedures that go into the mining process.

There are two common excavation techniques used today: surface and sub-surface or underground mining. The more common of the two is surface mining seeing as it produces a majority of the world's minerals.

Surface mining, as its name might suggest, is the easier of the two. The technique involves the removal of material that can be found on the surface such as vegetation or dirt. If necessary, miners dig into the bedrock to reach the deposits they are aiming for. This technique employs the use of one of five further forms of surface mining. These include strip, open-pit, mountaintop removal, dredging, and high wall mining.

Sub-surface mining, on the other hand, is the exact opposite of surface mining. This technique involves the digging of tunnels deep into the earth's surface to reach the deposit. The products of this type of process are then brought out through the tunnels and shafts created. Unlike surface mining, which is classified into five forms, sub-surface mining is classified by the type of access shaft used to extract whatever mineral needs extraction.

Advancements in mining equipment such as green light laser technology have made it much easier for miners to do their work. Most people are unaware that laser technology plays a big role in the success of any mining operation. Red light lasers used to be the standard, but green light lasers are starting to become more widely used. This is because green light is apparently much stronger than the red light, and is also visible under direct sunlight.

People tend to confuse the petroleum industry as being part of the mining industry, but this is not the case. It's easy to confuse the two, considering that the retrieval of petroleum involves the gathering of a product that is below the surface. Petroleum, however, is not mined like other minerals. This is because petroleum is in a liquid state; for it to be retrieved, it needs to be pumped out.

01-02-2012 om 06:28 geschreven door annazhao356  

In recent days,the temperature has dropped suddenly. Thus the situation of power shortage eased in China's western Guangxi Zhuang Autonomous Region. Experts suggest that we should adopt the strategy of protracted war to handle with this situation. Guangxi needs to change the industrial structure which is based on high energy consumption industries.

Since this summer,the supply of power is not enough due to dry weather. The power contradiction in Guangxi appeared a severe power shortage in a red warning signal, the maximum demand of electricity power shortage about 30%.

Lin Boqiang said that we should increase the capacity of installed machinery and improve the configuration to deal with the power shortage. We should take the situation of long-term drought into account and increase capacity of installed machinery. According to the statistics of Guangxi Power Grid,the total power capacity is 25.33 million kilowatts,14.94 million kilowatts hydropower, thermal power 10.39 million kilowatts.

Cement and other high energy-consumption industries are major consumers of electricity in Guangxi.The commission of industrial development and information technology show that total electricity consumption is 73.341 billion kw/h from January to August.Among them, the first industrial power is 1.353 billion kw/h; second industrial power is 54.553 billion kw/h; tertiary industry is 6.038 billion kw/h.The proportion of aluminum smelting,iron alloy smelting consumption is high and the power consumption is rising in the industrial electricity.

01-02-2012 om 06:28 geschreven door annazhao356