The flourishing business of illegal mining in Alwar is taking place under the patronage of district administration and police department, claims intelligence report of Rajasthan police that TOI has. As per the report sent on October 18, 2010, T Gutie, the then inspector general (intelligence) mentioned that in lieu of allowing illegal mining, the authorities receive monthly payment from mine mafias. The report says that due to proximity to national capital region (NCR) around 1,500 dumpers reach Delhi and Haryana daily without any hurdles.

A 50-member team that went to Kahrani village in Alwar district to stop illegal mining on Sunday was attacked by the illegal miners. More than six policemen were injured, out of which three have been admitted to a hospital. After the Supreme Court's (SC) decision where it came down heavily on state government's inability to restrict illegal mining, authorities have geared up their efforts to shut these mines.

The team was able to close down 27 mines in Tijara and seized 50 stone screening plants along with 8 crushers at Udhanwas in Alwar. 'Following the SC orders we have been taking action against illegal mines and have shut down four dozen units in the past few days,' said JP Jakhar mining engineer. He added, 'With the help of police department we have dismantled the stone crushing units and seized the crushers and other equipment.'

There is full support of officials from police, forest, mines and district administration to provide uninterrupted transportation. The copy was sent to the then home secretary, PK Deb. Despite these intelligence reports no action was taken.

After the strong criticism by the Supreme Court the district collector had issued orders for firm action against illegal mining. 'We are following the orders of SC and all the steps are being taken as per the instructions from the honorable court,' said Ashutosh AT, district collector, Alwar.

Illegal mining is carried out in entire RAJASTHAN and every officer responsible to check it is getting its share .Whether he is from Central Govt or from forest ,revenue ,police and mining.All politicians upto rank of minister are involved.

14-02-2012 om 06:30 geschreven door annazhao356  

RWE Power is one of Europe's leading energy utilities and Germany's biggest coal miner. The company would help R-Power design and plan the engineering aspects of captive mine and procurement of equipment and ensure quality control, the company said on Thursday. Government has allocated Kerendari B and C coal blocks of North Karanpura coal fields in Jharkhand to meet the fuel requirements of the Tilaiya project. These mines have reserve of over 1 billion tonne. The company plans to produce 40 million tonnes of coal per year.

'Although a great deal of research has shown that physically-imposing individuals are more likely to acquire power, this work is the first to show that being powerful may actually make people feel taller than they are. We found that people literally perceived themselves as taller when they occupied a more powerful position,' the Telegraph quoted Prof Goncalo as saying.

This is a good arrangement for R-Power to have experienced mining Company to plan, design and mine coal from captive mines from power generation. Arrangement will be helpful for Indian power customers as long as the cost of power produced by this arrangement is going to be reasonable. The cost control and efficiency in producing coal should a key factor regarding success. Indian government and the State need to a watchful eyes in this type of projects. Everyone should win from use of national resources for the good of the people. Government needs update its tax structures along with the ever increasing energy prices up wards. Proper monitoring and tax policy should keep the project winwin for allthe stakeholders.

14-02-2012 om 06:30 geschreven door annazhao356  

In the mineral processing industry, production costs cover more than 40% of the total cost on average, while the production costs of grinding covers more than 40% on average. While the investments of grinding equipments account for about 60% of the total investment of mineral processing industry.

All the processes that make large particle materials into small particles through outside force can be called crushing, the mechanical appliance is called crusher. All the processes that make small particle materials powder through outside force can be called crushing or grinding. It can be called powder mill for short. The machinery can be called pulverizer and grinding mill .The machinery that combine the crushing and grinding can be called crushing and grinding machine.

In the cement industry, the role of broken grinding costs in the cement works are around 20% of production costs, and electricity consumption of crushing machinery accounts for about 10% of total electricity consumption, while the powder mill accounts for 60%.

With the economic rapid development of modern society, The demand and production scale of all kinds of metal, nonmetal, chemical minerals, as well as cement, building materials increase gradually, so the material that needs to be crushed and grinded is increasing rapidly. Since the 90s, the annual amount of material through the broken grinding is up to 100 million tons. China's annual output of brittle materials has already reached more than 1.5 billion, of which about 240 million tons are iron ore, more than 100 million tons of nonferrous metals ore, more than 260 million tons of non-metallic minerals, over 30 million tons of chemical minerals, about 400 million tons of cement ,more than 470 million tons of limestone for building. Most of these materials must be broken through the grinding, so we can see crushing and powder projects play a huge role in the national economy.

Many different types of stone crusher, stone crushing production line are often used, complete production line and mineral sand production line stone, stone crushing production. The current breaker Heavy machinery industry has developed into a relatively large branch of industry, the benefits of working the heavy machinery crusher applications for the current situation and the stone industry in a variety of different quality characteristics, according to different Application of sums up the current industry crusher several major categories, including jaw crusher, impact crusher, hammer crusher and a cone crusher and so on.

The whole pulverizer is of a standing structure and characteristic of a small occupying space and strong integration capability. It can form up an independent production system from lump material crushing to finished powder and packaging. The electrical system of the pulverizer is centrally controlled and the advanced model is rationally selected. Basically, an unmanned operation can be realized in the pulverizing workshop. The lightweight and compact vibration feeder can feed the material uniformly. It is easily adjustable, energy saving and convenient for operation and maintenance.

14-02-2012 om 06:30 geschreven door annazhao356  

According to the industry policy that our country will give significant support to the development of basic industry like energy, transportation and raw material, as the backbone of these basic industries, mining machinery should get prior support so that it can further develop and improve in order to provide more crushing and grinding machines with international advanced level for the exploitation of coal, metal and non-metal mining hill, and satisfy the demand of energy and raw material of national economic development. The mining equipment mainly includes jaw crusher, sand maker and powder-grinding machine, among which crusher is the most important link in the whole rock crushing process and also the important symbol of measuring the strength of the mining facilities manufacturing industry.

Mining breaking and grinding machinery is devices that have high technology content and integration and the development of new equipment is mixed together with more and more achievements from other business scopes. With the development and advancement of material science, information technology and computer technology, every round of products are injected with new techniques, the update cycle of spare part is becoming shorter and shorter and the upgrading of new equipment is becoming faster and faster. Especially for the development of large-sized mining equipment, because there is no mature experience that can be learned and any mistake is allowed, it has to be researched with the help of mixing with many discipline techniques, improve the design efficiency and quality and enhance the company’s independent innovation ability and market competitiveness. The rock crushing and grinding devices has formed a trend of digital development with the basis of computer and internet technology.

When we look back on the development history of crusher, we can conclude that the main breakers are vertical impact crusher, hammer breaker and so on. Since the types are too many, their names are different.

The impact crushing machine developed by Henan Hongxing Mining Machinery is the example that perfectly combined with professional breaking technology and engineering manufacture and also the sufficient representation of new technique and processing method. It not only can provide the best rock aggregate for the highway, railway, high building, municipal works, hydroelectric dam construction, port and wharf and concrete mixing station, but becomes the core equipment in the artificial sand making industry and stone transformation scope, and more and more becomes the mainstream machine in the business scope of metal rock breaking, quartz sand production and slag disposal. So this series of products are well received by customers from home and abroad at the same time.

14-02-2012 om 06:30 geschreven door annazhao356  

Road and Bridge Construction as the most basic is the most widely used raw materials , construction aggregate for drawing convenience, wide range of applications and aggregate nature of the product itself has received special attention. The face of increasingly intense situation in the domestic high-speed railway construction , local governments have thrown the future of local planning, a large number of high-speed railway , highway project has attracted many domestic investors.

According to the policy situation prevailing circumstances , give full play to local advantages of supporting the construction of road administration into a lot of smart people who supply raw materials and an excellent business opportunity. How to choose a good aggregate and aggregates production equipment manufacturers to become a top priority for many investors concerned. Construction of the railway under the road level on aggregate with different quality requirements also vary , as far as possible to improve the quality of aggregates is the inevitable choice of sand stones factory , which Crusher, sand making machine such as the choice of aggregates production equipment is essential.

Aggregates are usually distinguished between fine and coarse aggregate. Aggregates are classed as inert materials, such as washed natural sand (fine); and natural gravel, which can be crushed to produce the appropriate size and grading of aggregate, and similarly crushed, quarried stone (coarse). The aggregate must have a minimum inherent strength requirement for structural concrete, the coarse aggregate must not be weaker than the concrete paste.

All aggregate must be 'clean', i.e. not contaminated with organic matter or clay/silty soils and overburden during extraction and storage.

As we know, under different local conditions , can be directly used in some areas inside the river channel gravel or pebbles directly processed, according to sediment concentration and the size of the stone optional equipment : jaw crusher , the European version Jaw Crusher , cone crusher , sand making machine and so on . Of course, the actual materials , of which package of equipment includes feeder , conveyor ( belt ), Vibrating Screen and sand washing machine .

The choice of aggregate equipment manufacturers is for the aggregate market share of fundamental significance , choose a good breaker equipment , products subject to quality assurance , maintenance of missed work can be removed from a lot of time to provide income for the profit of sand stones factory Prerequisite for stable operation . Given the nature of the equipment crushing machine , the proposed investment aggregates production companies use personal inspection equipment , visit the crusher equipment and use of on-site workshop , rigorous treatment of choice crusher manufacturers , not just unilateral concessions Figure price factor , in order to avoid Forest for the trees , not worth the candle.

14-02-2012 om 06:30 geschreven door annazhao356  

The professional jaw crusher manufacturer Henan Hongxing Mining Machinery Co.,Ltd constantly innovates and develops the crushing method and not only has promoted the improvement of such industries as mining, electricity, metallurgy and building materials, but has made great contributions to the national infrastructure, water, railway and high construction. For example, the hammer crusher is modified, and the crushing efficiency is thus improved, the changing frequency of hammer is reduced. We adopt high-chromium iron material hammer and steel one so that it will be easy to break rock, stone and aggregate. The crushing plate has high strength, wear and tear resistance and high tenacity; in the meantime, we also improve the structure and dimensional precision, so that the service life is expanded to two months and the crushing capacity is increased to twenty thousand tons every hour.

The manufacturing method at present in Hongxing Machinery is still meliorating and enhancing, and new material and technologies are all making better and appearing. As long as the new technique and manufacturing methods and materials are mature, they will be immediately applied in the production of the industry. Then new equipment will be developed and researched, manufactured and applied. The advancement and appearing of new facilities make the development of crusher have significant progress and in the future, there will be more and more new sand maker which will inevitably bring more and more benefits to customers. Hongxing Machinery can provide customers with excellent crushing and grinding equipment throughout the year, and we will continue to innovate and research and develop breaking machinery with less energy consumption and higher efficiency. Welcome all new and old clients to our company to purchase products.

In recent years, with the fast development of mining machinery in our country, our crusher industry also has significant improvement and new products are constantly launched out, and the crushing technology also continues to improve and make better. The improvement in technology includes that of jaw crushing machine compound hammer cast and heat disposal method, roller-type crusher, the temperature resistant technique of the crushing plate, high level road construction road face-used stone breaking and processing, modification of the hammer plate structure and wear and tear resistance. Hongxing Machinery has modified the working and structural technical data so that the discussion of superfine crushing can be realized and also the double rotator crusher system also is developed. In recent decade many new products also were researched and developed in the crushing industry like mobile crushing station, superfine jaw crushing machine.

14-02-2012 om 06:30 geschreven door annazhao356  

Jaw crusher is widely used in mining, ore dressing plant, inertial force, poor working conditions, heavy-duty work in primary crushing equipment. In order to ensure continuous operation of the device's normal, full production capacity of equipment, in addition to proper operation, regular maintenance and periodic maintenance, the need for accurate and timely work to determine and eliminate potential failures.

The main operation of the common faults:

A) crusher idling, the lower the metal crash occurred. Jaw crusher working load, the lower the metal crash occurred may be the following three reasons:

1) mobile jaw and fixed jaw broken tooth plate each crash is due to the small port of discharge caused, should be timely adjusted.

2) The thrust plate bearing or gasket conditioning crash occurs, usually disappear by the spring elastic buffer rod or damaged, or does not bear the weight of the spring caused by rotation, when the movable jaw plate, elbow board, the body does not close with the three so that both ends of the support bracket and produced the first shock, or adjust the pads hit each other, should be strong in time compression nut until the crash disappeared.

3) there may be serious bracket bearing wear or loose slider, bracket serious head wear, should be replaced.

B) work with metal crash, backing jitter. This phenomenon is often the crushing chamber side of the liner and the tooth plate (fixed, fixed) loose, loose or broken screws or strong result, it is timely solid or replaced.

C) after the brackets break frequently. In addition to transmit power after the brackets, but also by its lack of intensity from the insurance role. In addition to the middle bracket is too low intensity, the strength enough to overcome the normal force of broken ore crushing damage produced, this may be the weight of the spring rod, together with crushing force when the work overload and break it, may be appropriate to transfer song spring.

D) flywheel turning, crushing machine does not work. Is due to the spring rod and rod damage to the elbow from the trip lever nut bearing slider emerge, it may be broken off bracket, should be re-replacement and installation.

E) flywheel significant swing back to slower eccentric shaft. The fault is due to the pulley and flywheel key loose or damaged, turn the wheel and axle can not be synchronized.

F) broken thicker particle size is Broken liner The lower part of the results of serious wear and tear. Board or under the teeth should be replaced with new liner exchange, port of discharge to adjust the required size.

Whenever adn wherever we must prevent accidents before they occur.

14-02-2012 om 06:29 geschreven door annazhao356  

As the mining equipment is a typical variety of heavy industrial machinery, representing the level of manufacturing technology in China, therefore, the state of the domestic production of mining equipment has to be seriously put a lot of policies to support domestic production of mining equipment. Equipment and as well , hardware or equipment during exploration, since they're specialists for nutrient company shops, which means that have fossil fuel, the form of iron ore, zinc coupled with other not-ferrous precious metals industry is one area of trading stringed corporations.

Mining machinery and equipment mainly broken equipment, grinding equipment, sand making equipment. In people's minds, scorching sun, dust billowing, mining workers have been in such a 'polluted' environment to work. In recent years, mining equipment companies follow-up in production technology, new green energy-saving equipment costs are the scale and technological progress as the industry declined sharply. Costs down, and mining investors willing to buy affordable, reliable energy-saving equipment as production of environmental protection device of choice. Based on this, look at the future growth of green energy-saving equipment space, environmental protection and energy saving equipment, the cost advantage of the emerging, there is no reason not to optimistic about the environmental protection equipment industry.

Exploration machines and furthermore devices to have construction manufacture of all-important rock and in addition electrical fitness equipment, that it is overall performance results in being typical alternative as well as energy saving sides. Employing the choice is about small metallurgy, modest mines, trivial cement business owners will most certainly be d, the actual brand new massive-scale concentrator, colossal coal homework botanical herb, combined with gently the high concrete weed, mining fitness equipment, which often submit increased principles, some sort of important to be able to attend to dimensions, Make Your Mind Up below-time saving, terrific action of one's-preserving infrastructure.

In recent years, mining machinery mining company workers, according to the needs of the work environment, more focus on efficiency, energy saving, environmental protection equipment R & D and production. Shanghai World states in the crusher for mining, milling machines and sand making machine and other major equipment development and particular attention this time of manufacture. Shanghai World states set for customer mobile crushing plant, MTW European ladder mill, VSI5X impact crusher and other equipment, is the use of international advanced technology, combined with the actual situation in the domestic mining industry developed highly efficient energy-saving environmental protection equipment, is also the current the industry's most needed products. High Efficiency Energy Saving World State mobile crusher station in the production, marked with independent intellectual property rights and have a high technical level of the mobile crushing equipment in the country was born, the technology to fill China's high-end mobile crushing equipment blank Such devices have been internally rewritten the history of dependence on imports, while domestic mobile crushing equipment to create a new era of export.

Exploration systems creating group beneath direction regarding state rule reforms to hurry within quickness together with business science, coordinate development in order to exchange realistic price ., part in choices, needs in the market to improve product assembly, spot, step-up sales revenue to make sure you even more a long time-search term development. Offfering output and as well sourcing level of expertise, installation in the birthday gift qualified and creative natural ability of the business entity, the agency assembled a market competitiveness with opportunity associated with the contemporary mining Jixie home business clubs, to produce energy levels-saving general insurance policy coverage for your mining components to attenuate the most important exploration among visitors threat and therefore trading like place that will exploration systems company within just Asia give rise to the increase.

14-02-2012 om 06:29 geschreven door annazhao356  

By the international financial crisis, steel, etc. Metallurgy Impact of price volatility in the industry, too much advantage of metallurgical machinery manufacturing, and other hard hit areas. Ideas determine, the depth and breadth of emancipating the mind, determine the quality and speed of enterprise development. It is based on the international financial crisis brought about by the change, a major adjustment, and development of a profound understanding of the early heavy layout, and proposed the 'Four Abilities, four changes to achieve' development ideas. 'Four capacity' refers to the 'capability of independent innovation, meticulous management, risk control, harmony-building capacity.' 'Four Changes' refers to 'the traditional areas of the main changes to the diversification of products, mainly from the domestic market to both international and domestic market changes, production from the traditional to the new service-oriented manufacturer of the manufacturer, and from a scale pull transition to innovation-driven growth. ' 'Independent innovation', and 'product diversification' are mentioned in the first place.

In withstand international Financial Crisis, the impact of the traditional machinery manufacturing industry, the development of a new industry to seize the strategic high ground of the tide is flowing too. 27, the reporter learned from the heavy group, the first quarter of this year, the Group's main business income of 3.054 billion yuan, up 45%. Group to accelerate the manufacture of heavy machinery to clean Energy , Clean coal, Track Road transport, port machinery, engineering machinery, five new areas, and its 'flagship' enterprise Taiyuan Heavy Industry on Steel The proportion of industry orders have been from a peak of more than 70% down to the present 50%.

Currently too Tianjin Port Group is speeding up base, tons of press, steel wheels new park construction, speed up the port machinery, engineering machinery, rail transportation and other fields of industrial development speed; efforts to achieve large-scale Taiyuan Heavy Industry Excavator , Wind power products and nuclear products, and heavy coal-washing equipment, machine independent production, with a specialization drives plate quickly become bigger and stronger. ''12 5' end, we propose, too heavy to achieve Group sales of 30 billion strategic objectives.' Heavy group deputy chairman and general manager of the public record, said Wang. Meanwhile, the international financial crisis has strengthened too much of people's international strategy: only integrate into the international market, absorb the international advanced concepts, technology and management experience to full integration with the world, to create an international enterprise groups. Today, in India, Vietnam, Brazil, Chile, Peru and other emerging developing countries, 'too' brand metallurgy, mining machinery and other products already have a strong competitive edge. Asia, Africa, South America and other continents of the emerging developing countries, who will be too heavy build 'the world too,' the main battlefield.

14-02-2012 om 06:29 geschreven door annazhao356  

China's resource-based industry has long been dominated by extensive development, exploitation of high cost low, the current number of Chinese mining enterprises and distributed, industry concentration is too low, large-scale backbone enterprises lack sufficient market power, resulting in the Chinese mining enterprises in the international There is not enough voice.

Timely introduction of national policy, vigorously push forward the pace of mining enterprises to speed up mergers and acquisitions, Ministry of Land and 12 other central ministries and commissions jointly issued the 'further promote the development of mineral resources on the integration of the notice,' hereinafter referred to as 'notice', requiring provinces and regions City speed up the integration of mineral resources, integration of minerals including coal, iron, manganese, copper, aluminum, lead, zinc, molybdenum, gold, tungsten, tin, antimony, rare-earth, phosphorus, potassium and other important minerals. The industry believes that this marks the integration of mineral resources into the fast lane. The integration of coal resources in Shanxi which is the resource integration of a miniature tide.

Influx of private capital competing state support to encourage the 'railway, highway base,' the industry is bound to the crusher, sand making industry to bring a huge opportunity for development. In fact, before the state 4 trillion from the economic stimulus plan has to have begun in the state for road transport, urban construction and infrastructure investment is to spare no effort in policy is also strongly supported. Investment plans in the 4 trillion during the early to see the opportunity to join the aggregate production of entrepreneurs have earned pours. The inclination in this direction of national policy Youxiang, with a keen business sense of smell of private capital will not let this opportunity, therefore, crusher, sand making industry will usher in a great development opportunities.

To develop railways, highways, strong beam and other basic equipment, the biggest demand is high-quality gravel aggregate. A general infrastructure projects, if less material can be purchase directly from small sand quarry, but the long duration, engineering supplies and more, need to establish a dedicated production base of gravel, sand and gravel materials specifically to meet the demand for high-speed road sand stone. Generally invest in a gravel quarry, the system consists of coarse crushed gravel workshop (including the transfer bar screening), screening plant, the crushed plant, sand plant, check the screening workshop and semi stockpile, windrow adjustment, finished aggregate yard, the control system and its auxiliary facilities, etc..

14-02-2012 om 06:29 geschreven door annazhao356  

Mining 13ed September, National large-scale modernized coal preparation plant company set up sit-meeting in Yinchuan city, Ningxia. This is the first professional meeting in washing & separating processing hold by coal field in the latest 10 years. It will widely summarize experience from large-scale modernized coal preparation company, and improve coal producing and the way of using. In this way, it will set up a ecological green mining concept of coal mining and construction. Vigorously develop coal washing and processing, promote cleaning and high efficiency using of coal and energy conservation and emission reduction.

Along with the growth of coal preparing scale, the developing on high coal ash, high sulfur coal, low coat coal, especially brown coal becomes much more serious. It needs separator adn processing equipments more and more urgently. Related technology and equipments develop so slow that is cannot meet the demand of development. In order to promote coal washing and crushing going smoothly, increase production of coal crushing and improve implement of energy conservation and emission reduction, Henan Hongxing Machinery developed large scale coal separating, washing and crushing equipment. Large scale jaw crusher and mobile crusher in coal crushing and separating are with advanced technology, high efficiency, and environmental protection. Environment worsening day by day and waste of mess, those caused by mining is an issue now. It not only damages environment, but cannot make full use of the mineral resource.

Based on large scale crushing equipment, energy conservation can go smoothly, and improve comprehensive utilization of coal in a irrepealable role. In these regards, Hongxing mobile crushing station makes benefit in making full use of mineral resource, especially in coal preparation. Integration plant work in a mine as a whole. Large scale jaw crusher, impact crusher, cone crusher, feeder, vibrating screen, etc work independently. At the same time deal with the waste in processing, effectively reduce the damage of environment pollution.

14-02-2012 om 06:29 geschreven door annazhao356  

In recent years, according to structure adjustment of the national mining machinery and the upgrade requirements of the transformation, Henan Hongxing Machinery identifies new development strategy, adhere to the independent innovation, upgrade, deep conversion, circulation development, deepen reform, promote technology innovation, technology upgrading, upgrade the optimization and upgrading of products, enterprise development and upgrade cluster of upgrades, to make the first brand mining machinery in China and even the world.

Firstly, to adhere to the independent innovation as the core. To make new technology research on crushing and development platform. To make form of incentive mechanism ti attract talents cultivation. To promote mine machinery manufacturing enterprise to master key technologies and enhance the ability of independent innovation.

Secondly, to adhere to developing advanced mining machinery manufacturing industry as the main purpose. To promote jaw crusher, impactor crusher, mobile crusher, cone crusher, the sand making machine, etc advantage industry. To speed up development, accelerate the each link of information, industrialization fusion of mining machinery crusher in r&d, manufacturing, marketing service, etc.

Thirdly, to adhered to base on the major projects, supported by large projects make Xiazhou Machinery influent large area on crushing. To drive the crushing industry into speeding up further engineering construction industry.

Fourthly, to insist to promote the adjustment of industrial structure as the key to produce a group of new energy-saving environmental protection crusher with strong core competitiveness, the leading product advantage prominent and with the international competitiveness.

To speed up the ascension key technology research and development level of mine crusher, conquer mining machinery key areas' core technology, it's the main task and the key of '10-25' mining machinery upgrading. Focusing on the independent innovation, and increases the competitive advantage, speeds up the innovation and development of high-end mining machinery manufacturing industry. It is an important transformation way to make Hongxing Machinery go further.

14-02-2012 om 06:29 geschreven door annazhao356  

Nowadays, the advanced flotation machine adopts fully automatic control system. This system can be used in flotation of metallic minerals and nonmetallic minerals. It mainly controls the concentration of flotation slurry, reagent added volume and the liquid level of flotation tank, and aims to improve the grade and recovery ratio of flotation concentrate, as well as reduce production costs.

Flotation machines constitute the basic equipment for useful minerals recovery from non-ferrous ores and other raw materials by flotation. It is applicable for separating non-ferrous metal, black metal, noble metal, non-metal mineral, raw body and materials of chemical industry, which are subject to coarse separation, swept separation and flotation, so the useful ore are reclaimed.

Adjust the flow of filling value through detecting the concentration and flow of feeding slurry, stabilize the concentration of flotation slurry within the setting value, accurately control the additional dosage according to different requirements in different flotation stages; adopt inverse system method to control the liquid level of flotation machine and decide the scraping amount of flotation froth according to thechnological design, control water supplement amount during intermediate process according to liquid level, detect the running status of data analysis according to online grade for timely adjustment of technological indexes.

The floatation machine impeller has a problem of air suction which has to rely on external fan to force the air blown in. Advanced instruments are used in mineral processing,which measure,regulate and control air flow of SF flotation machine.In this way,automatic control of flotation aeration rate is achieved,which optimize the amount and dispersity of the air entering into flotation tank and effectively increases contact rate of bubbles and mineral particles,so that mineral indicators are stabilized.

13-02-2012 om 09:34 geschreven door annazhao356  

With the growth in the mining industry in recent years, demand for high-end and cost-effective mining machineries is looking promising. The mining sector has been expanding at a 3% to 4% rate yearly, and this growth is expected to continue in many of the key mining regions of the world with India, China, Australia and Brazil pushing the tempo. India's new mining policy, which has been delayed for almost two years, is seen by a number of industry experts as a boost to the mining sector as it will significantly reduce administrative delays for issuance of new mining leases from the Indian federal government. These positives in the global mining sector are boding well for heavy machinery companies.

A few companies that have been making impressive strides in this space are Joy Global Inc. (NASDAQ: JOYG), Bucyrus, Hitachi Construction Machinery and Komatsu. Joy Global has recently pulverized Wall Street analysts' estimates in its most recent quarter with equipment orders on an uptrend at 43%. Driven by the boom in the mining sector, Caterpillar Inc. (NYSE: CAT), which has a diversified portfolio of products, is working on the development of a new line of mining shovels. These new monster machineries will be available in 2011 and will be in direct competition with mining shovels from Bucyrus and Jay Global. Caterpillar is forging ahead to expand its grip on the mining industry worldwide as it announced an investment worth close to $700 million to begin manufacturing the new range of 125-ton to 800-ton mining shovel models and boost production of its trucks.

Competition promises to be fierce in the next few years amongst the titans of this industry as they literally will be sending giants to fight for market control. Whilst growth in demand for mining equipments and machineries is anticipated to soar by almost 5% on a yearly basis for the next 2 to 3 years, there is also some fear that the cyclical nature of the mining sector can impact some of the players that are focus mainly in the mining machinery industry.

13-02-2012 om 09:33 geschreven door annazhao356  

Global demand to increase over 4% yearly through 2013. Global demand for mining equipment is projected to increase over four percent per year through 2013 to exceed $60 billion. Despite a sluggish outlook in the shorter term, recovery is expected in the mining industry due to rising demand for commodities such as iron ore and copper. In addition, the ongoing global thirst for energy will boost global coal output. China and India will be leading sources of mining equipment demand. However, just as importantly, these nations will continue to fuel demand for mined products throughout the world, thereby providing opportunities for machinery producers.

Developing areas to exhibit above-average growth

Eastern Europe, with extensive mineable resources, is projected to exhibit above average growth in mining equipment demand, along with developing areas of Asia, the Africa/Mideast region and Latin America, with the mature markets of Western Europe and North America trailing. Within the latter two regions, however, are some fairly notable global mining powers, including the US and Canada, each with an abundance of natural resources; and Germany, which is a major source of coal.

Asian markets now dominate other regions

China has shown strong growth in mining equipment demand, a direct result of investment in its local mining industry. For example, coal output more than doubled from 1998 to 2008, reflecting the nations intense need for energy. China is also a major source of commodities such as iron ore and bauxite. China has quickly emerged as the worlds largest producer of mining equipment, due in large part to the nations growing mining industry. The other largest producers of mining equipment are generally found in the United States and the industrialized nations of Western Europe. Such countries have a long history and extensive expertise in the development of capital equipment industries of all types, which many have leveraged in mining machinery.

13-02-2012 om 09:33 geschreven door annazhao356  

In addition to outer skin factor and the coefficient of rock, we need consider the following production conditions:

1. Deposits in the vicinity of the transport sub-lines and the location of branch. In this part of the quarry should be clarified by the possible routes that out of the product. When explore the quarry, in any case, must explain the Road traffic performance in the period of whole year, artificial constructs of state, the need for the construction of new extension and the measures to improve existing roads.

2. The possibility of construction in whole year, for the river side or in the vicinity of the river deposits, we should consider that whether mining site is in dangerous when inundation, this is particularly important.

3. Preparatory work before mining deposits, the possibility of using local trees in following construction.

4. If there is a places to be the scrap yard which nearby the mineral deposit. During the exploring time, we should measure the landform that can be the scrap yard.

5. The information about the electric power source and availability of local fuel data.

6. If any Local producers like machinery company can be used.

7. The information about the electric power source and availability of local fuel data.

If there is residential area and its characteristics that nearby the mineral deposit, and the possibility of involvement of local residents to participate in the quarry work.

13-02-2012 om 04:19 geschreven door annazhao356  

Iron is the world’s most commonly used metal – steel, of which iron ore is the key ingredient, represents almost 95% of all metal used per year. It is used primarily in structural engineering applications and in maritime purposes, automobiles, and general industrial applications.

Iron-rich rocks are common worldwide, but ore-grade commercial mining operations are dominated by the countries listed in the table aside. The major constraint to economics for iron ore deposits is not necessarily the grade or size of the deposits, because it is not particularly hard to geologically prove enough tonnage of the rocks exist. The main constraint is the position of the iron ore relative to market, the cost of rail infrastructure to get it to market and the energy cost required to do so.

Over the last 40 years, iron ore prices have been set by a so-called benchmark system , between miners and steelmakers. In recent years, the benchmark system has begun to break down, with some miners pushing for their customers to use the spot market, and negotiations with the largest buyer, China, causing friction. As the spot market has grown in size and importance, financial hedging instruments such as iron ore swaps have emerged.

Iron ore reserves at present seem quite vast, but some are starting to suggest that the maths of continual exponential increase in consumption can even make this resource seem quite finite. The iron ore quarry mining process is complicated process and need many mining equipment. Through the mining process iron ore boulders are turned into all sizes of materials. The blasting process is the first step determining what needs to be accomplished next. Rock hammers, drop balls, primary crushers, and gyratory crushers all contribute to the iron ore mining process. Coarse materials are sent by belt conveyer to the iron ore crushing plant or iron ore grinding plant for additional crushing, grinding and sizing. The mine stockpiles different sizes of iron ore materials for their customers.

Iron ore coarse portable series mobile crushing plant is a new type of stone crushing equipment, which expands the concept field in coarse crushing. Based on the client’s requirements, Portable series mobile crushing plant take the problem like the crushing place, surroundings brought as the priority work. This series mobile crushing plant really supply simpler, higher efficient ,lower cost machines for clients.And the iron ore Portable series Mobile Crusher plant inludes :Jaw Crusher series ,Impact Crusher series ,portable crusher series .And this kind of iron ore crushing plant features low operation cost and high efficient.

13-02-2012 om 04:19 geschreven door annazhao356  

There is a specific operating speed for most efficient grinding. At a certain point, controlled by the Mill speed, the load nearest the wall of the cylinder breaks free and it is so quickly followed by other sections in the top curves as to form a cascading, sliding stream containing several layers of balls separated by material of varying thickness. Grinding Mill Price, the grinding influencing factor said broadly, stave process influencing factor including material nature, detritus equipment performance and operating condition.

One: Material nature kind of influencing factor mainly includes the material the degree of hardness, density, the average gradings and structures, water content, silt carrying capacity. The material degree of hardness is bigger, not easy stave; The density of material is bigger, is bigger according to the equipment handling ability that giving the material counts; When the greatest granularity of material is certain, the average gradings are thinner, needs the breaking work load to be less; The structure relaxation and jointing growth good material is easy, but the watery and silt carrying capacity big material are easy to cake, when is serious will cause the stave cavity jamming.

Two: Detritus equipment performance kind of influencing factor mainly includes the type, specification and the dump mouth equipment and gnaws the angle. The type and specification of detritus equipment are to decide it whether to satisfy the specific work request the first condition, thus when the choice detritus equipment, must first act according to treats the broken material the nature and quantity, determined that uses any type the equipment and specification. On a concrete equipment, the dump mouth’s size in fact is deciding its work quality and productivity. When the throat is over sized, majority of materials without stave through dump mouth, thus makes the productivity very big, but the reduction ratio is small;

Otherwise, when the dump mouth is too small, although the reduction ratio will increase notably, but the productivity of equipment actually therefore seriously drops. The when gnawing angle of detritus equipment is to refer to being caught in the pincers of material block, the included angle between stave working part surfaces, usually indicated with mark a. When according to this definition, the gnawing angle of jaw breaker is being caught in the pincers of material block, moves the jaw with deciding the included angle between jaws, but the gnawing angle of roller breaker is to refer to the included angle between material blocks and two roller surface contact tangents. The detritus equipment gnawed a jiao size to decide directly whether the stave process can carry on safely smoothly, was a very important equipment operational parameter.

Three: Operating condition influence grinding process operating condition mainly to material the work form of condition and detritus equipment. Continuously evenly to the material both can guarantee that the production normally is conducted, and can sharpen the productivity and working efficiency of equipment. In addition, when the close up is stave, the productivity of breaker may increase 15% – 40%.

13-02-2012 om 04:18 geschreven door annazhao356  

Vibrating screen in line with crushig equipment , screening equipment for the mine. Vibrating screen will appear in the course of many unstable factors, here we propose several ways to improve screening efficiency, a direct impact on the shaker quantity, hoping to help the majority of the shaker to the user, to effectively solve your problem screening equipment .

In the stone processing, vibrating screen and crusher are often supporting the use. But many unstable factors will appear in the course of using. Now we propose several ways to improve screening efficiency. Vibrating screen has a direct impact on capacity, so we hope to help the majority of the vibrating screen users, to solve your problem.

1. To improve the hole sieve rate, a high percentage of open area will help to improve screening effectiveness; usually the rate of welded stainless steel sieve hole could be high.

2. Adjustment of the feed means that the material will be feeding along the entire screen, to be sure to make full use of screen surface;

3. To reduce the rate of screen surface plug. You can consider the sieve plate with self-cleaning. such as the spring rod surface or mesh screen added the following anti-clogging device.

4. If Conditional, you can consider adjusting the inclination of sieve machine, the appropriate angle helps to reduce the material thickness, to achieve a thin layer of screening material.

5. If conditional, wet sieving, which is improved the most effective means of screening.

6. For Vibrating Feeder you can consider adjusting the weight to improve screening effectiveness.

7. For dry sieving, it is necessary to strictly control the feed water, when the moisture is high, screening could be considered ingredients.

8. If conditional, the feed side can increase the fixed screen, for coarse sieve.

Henan Hongxing vibrating screen are produced by use of boiler plate cold riveting technology and driven by eccentric shaft. Comparing with the traditional linear vibrating screen, it has advantage of reliable struction, the high rate of screening, sturdy and durable, convenient maintenance. Especially for mining, building materials, transportation, energy and chemical products, it can do an effective even classification.

13-02-2012 om 04:16 geschreven door annazhao356  

Before working on any equipment, attach warning tags directly to the machine, near the controls.

Dress Properly

1. Keep hands and clothing away from moving parts. Do not take chances by wearing loose sleeves, floppy ties, watches and rings.

2. Wear eye protection when handing fuel, cleaning fluid, oil or brake fluid. These materials can damage your eyes.

3. Wear a respirator when required.

4. Wear safety glasses when drilling, grinding or hamming metal.

5. Keep your pockets free of objects which can fall out and into machinery.

6. Wear a hard hat and safety shoes, when required.

7. Wear gloves to protect your hands when changing cables.

8. Wear safety glasses and protective clothing when using high pressure air.

9. Wear safety goggles and protective clothing when handling molten metals; zinc, babbitt, lead, etc.

10. Wear ear protective devices when required or reduce exposure time as required.

Alcoholic Beverage And Medication

1. Do NOT consume alcoholic beverages before coming to work or while on the job.

2. Beware of medicines, tranquilizers or other drugs which can make you sleepy or less alert.

Keep Your Work Area Clean

1. Promote good housekeeping. Keep the floor clean and dry, free of debris and tools. Oily and wet floors, steps and hand rails are slippery. In winter watch out for ice and snow. Wet spots, especially near electrical equipment, are dangerous.

2. Do NOT let material lay and build up on or around the equipment.

3. Store dangerous fluids in a suitable place – away from unauthorized personnel. Allow no smoking in the area!

4. Never start a diesel or gasoline engine within an enclosed area unless there is adequate ventilation. Exhaust fumes can kill.

Perform Maintenance Work Safety

1. Use the proper tools; handle tools and heavy parts sensibly.

2. Keep all tools and equipment free of dirt, oil and grease. Do not drop toss them.

3. Use hoisting equipment for heavy lifting.

4. Lower parts, do not drop them.

5. To prevent slipping, wipe hand levers and knobs clean of oil or grease.

6. Do not use sheaves with cracked rims or spokes.

7. Check for missing, cracked or frayed V-belts before you operate equipment.

8. Check for broken, defective or missing parts and replace them. Keep equipment clean and free of dirt and oil so you can spot loose or defective parts.

9. When using cables to move a load, be sure cables are of adequate size and replace any worn, badly frayed, broken or kinked ones. Check end connections for wear.

Be Aware Of Fire Hazards

1. Do NOT smoke while refuelling – or when handling fuel containers.

2. Shut off your engine when refuelling – and use extra caution if engine is hot.

3. When pouring fuel into the tank, ground the funnel or spot against the filler neck to avoid static electric spark.

4. Do NOT use gasoline or diesel fuel for cleaning parts. Good commercial, non-flammable solvents are safer.

5. Do NOT smoke while using cleaning solvents.

6. Do NOT let greasy, oily rags accumulate in a poorly ventilated area. Store oily rags and other combustible material in a safe place.

7. Never use an open flame to check fuel, battery electrolyte, or coolant levels ... or to look for hydraulic leaks anywhere on the equipment. Use a flashlight!

8. Know where fire extinguishers are kept – and how they operate – and for what type of fire. Check regularly – at least monthly – to be sure they are in good working condition.

13-02-2012 om 04:16 geschreven door annazhao356