Dewatering is the removal of water from solid material or soil. Mineral dewatering is the removal of water from minerals.

Generally speaking, the ore concentrates classified have some moisture.

A. In the sandstone production line. Because in the line, many ores must be washed or classified, the final ores necessarily include more or less moisture.

B. In the ore dressing line. Whatever flotation process or magnetic process, they both is related with water:

(a)For flotation process (flotation machine), it's obvious. The water weight in ore concentrates of flotation plant is 4~5 times compared with the solid weight.

(b)Magnetic beneficiation (magnetic separator) can be divided into dry and wet ways. So, the water exists in wet beneficiation.

The reasons for mineral dehydration.

A. Transportation. If ore concentrates aren't dewatered, it will be difficult and high-cost.

B. In cold regions, ore concentrates with great moisture shows freezing phenomenon, which isn't helpful for ore concentrates transportation.

C. Not only dewatering for ore concentrates, but also for tailings. The moisture in tailings is almost above 70%. Therefore the tailings dehydration is necessary before entering into tailing warehouse.

06-01-2012 om 08:20 geschreven door annazhao356  

Mineral beneficiation is a process by which valuable constituents of an ore are concentrated by means of a physical separation process. As one of the initial steps of extractive metallurgy, the main purpose is to prepare the ore prior to downstream purification processes. The most common mineral beneficiation processes include: sample preparation, comminution, size classification, and concentration.

Recent years, China has great changes and innovations in various industries. Mineral beneficiation equipment brings and adopts advanced technologies from foreign enterprises: permanent magnetic separator, spiral classifier, spiral chute.

Sign the new technology from benefits of thermal coal beneficiation.

a. Saving in transportation cost by not transporting the dirt material over long distances.

b. Saving in capital and operating cost of power plants.

c. Cost of energy produced using washed coal may also reduce further provided the washed coal helps in increasing PLF and washery rejects are utilizedefficiently in higher capacity AFBC/CFBC boilers.

d. Regulating the quality of coal feed

e. Reduce the ash content resulting in improving the life of the pressure parts of the boilers, grinding parts of mill, pulverized coal pipe lines, coal burner nozzles, ducts, ESP internals, air pre-heater seals, ID fan impellers etc.

f. Specific secondary oil consumption is also expected to reduce.

06-01-2012 om 08:20 geschreven door annazhao356  

For beneficiation, as we know, flotation beneficiation and magnetic beneficiation are used widely. In the two ways, flotation machine, magnetic separator, spiral classifier, spiral chute are the important equipment. There are another way: gravity concentration.

Gravity Concentration, one of the oldest mineral beneficiation processes, has evolved over the decades and continues to play an important role in modern mineral processing operations.

Gravity concentration, where applicable and effective, has the lowest installed and operating costs when compared with other beneficiation technologies. It also tends to have the lowest environmental impact as gravity concentration does not require the use of chemicals and reagents. Hence, with the recent increases in energy, capital and operating costs as well as environmental concerns, gravity is often one of the first processes evaluated for new flowsheets.

In the case of gold and other precious metals, modern gravity concentration equipment can easily generate saleable concentrates and provide quick cash flow at a relatively small capital cost.

Finally, gravity concentration provides the versatility for treating a wide particle size range. Using pre-concentration as an example, devices such as jigs and spirals can be used for coarser particle size classes while proven enhanced gravity concentrators can be used for scavenging fine particles. Modern centrifugal concentrators are routinely effective down to 20 microns. Good performance to below 10 Microns has been demonstrated in some cases.

06-01-2012 om 08:19 geschreven door annazhao356  

In the era of thchnology economy, advanced technology has taken the leading position in the business circle. As to buyers, it's beneficial for a long period to purchase the advanced equipment with reasonable price. Henan Hongxing is just the best manufacturer of mining equipment.

Henan Hongxing Mining Machinery Co., Ltd is a joint-stock mining machinery manufacturing enterprise integrated in scientific research, production and marketing. The products mainly include four parts: stone crushing machines, sand making machines, powder making machines, ore dressing machines, and also the brick burning equipment. Our mining equipment is useful for concentrating metallic minerals and non-metallic minerals, especially for low-grade ores and tailing ores, so many considered non-value or discarded ores have been used. Our equipment is popular in separating gold, tungsten, tin, nickel, copper, iron, manganese, titanium, lead, zinc, tantalum, columbium, uranium and some kinds of non-ferrous metal, like quart, zircon, and barite. The stable performance, simple operation, low cost, and environmental protection are all features of our equipment. For example, our VSI crushers, PE series jaw crusher, YGE series coarse crushing movable crushing station are all in advanced technology designs and high quality. If you are interested in them, the lowest quotations await for you.

Taking the movable crushing station. The coarse crushing movable crushing station can crush the material in the first-line of the jobsite and avoid the middle link of transporting the material to other places and then crushing. It saves the transportation fee greatly. Besides, the lengthening machine frame can send the material directly to the transferring truck wagon box and then leave the jobsite easily.And it includes the PE series jaw crusher. This jaw crusher has the high-efficiency, multi-function, excellent crushing product quality as well as the reasonable structure design and prominent crushing characteristics. It has the strong adoption ability for the transporting quantity, material particle size and abrasiveness. It brings long wear time and higher work efficiency. The reliable and stable quality establishes the perfect reputation among all the users domestic or abroad.

Hongxing Brand is a 'China Famous Brand' for reliable and stable quality, and been awarded the “Civilized Enterprise” “Key Enterprise” “Enterprise with Standard Quality” and “Enterprise with Honesty and Credit Standing”. The company has modernized management system, first-class gold-processing equipments, perfect detection methods, high-quality personnel and fine after-service. We firmly believe that we can get sincere repayment with our sincere dedication. And it's not in doubt that ' To choose Hongxing is to choose convenience.'

06-01-2012 om 08:19 geschreven door annazhao356  

Slags, ore tailings, industrial waste, waste water are common and usual in mining production industry. At present, the government advocates 'environmental protection', with the policy, many mining machinery industry try all ways to take good use of the industrial waste. Let's make an analysis.

China may be the main ferrous metallurgy industry, solid waste, in 2005 made 349 million tons of metal slag, smelting slag produced 146.19 million tons, (ones about 50 million a ton of steel slag, blast furnace slag around 9000 tons), comprehensive consumption of 128.48 million tons, accumulated in the past having a total storage capacity of two million tons, a spot of 3 acres, the open storage with the smelting slag dumps land seizures, pollution, poison the soil, water and air, seriously impact the ecological environment, producing significant economic loss or potential and waste of resources. Approximately a ton smelting waste stockpiles of 14.25 billion yuan total economic loss, economic lack of 2.85 billion yuan on a yearly basis. Therefore, the smelting slag of harmless, treatment resources as well as the arena of China attaches great importance to the focus countries, we promote the recycling economy is usually a central part. Granulated blast furnace slag utilized for fine grinding and coarse grinding, respectively, while in the form used, is the using the most appropriate metal slag process.

We can see the slat recovery from copper slag recycling, iron slag concrete and steel slag production process.

Iron Slag Concrete

Clinker, iron slag concrete or some other materials mixed with a grinding circuit of ball mill , qualified powder to the clinker, iron slag concrete powder library. Synthesis inside cement plant, as outlined by market demand and national quality standards, the slag and clinker, slag powder, measured in proportion, mixing, and homogenization, the preparation of several intensity levels of slag cement or composite cement.

Steel Slag Production Process

Steel slag production process in several forms, can yield high thin tube mill (especially Rolling Mill) a open process, it is usually a regular ball mill, high quality separator a closed process; generally is a closed vertical mill process can be in addition to roller press and ball mill grinding process and so forth. These processes share is: need to be of high slag grinding into fine powder (collectively described: slag powder), that slag particles within the 80% 50m, specific surface 380m2/kg, which, 10m ultra-fine powder around included 30 to 40%.

Copper Slag Recycling

Raymond grinding mill which has a reasonable and reliable design for copper slag recycling, with advanced technological process, couple of drying, grinding, as well as powder especially in the massive grinding process, to totally meet customer demand, the primary technical, economic indicators have reached international advanced level. Raymond mill for copper slag processing may be used to give you the heat stove, drying and grinding to achieve the procedure for slag, slag qualified library in the slag. Save slag dryer, simplifying the assembly process.

05-01-2012 om 06:13 geschreven door annazhao356  

Jaw crusher-hydraulic type jaw crusher is used through the hydraulic adjusting device adjust piston kind of fuel oil pump trip, based on effective hydraulic system trace quantity of oil leakage automatic regulation size oil, work cylinder injection with bolts restrictions limit elongation, overcome the job of hydraulic system dynamic jaw of hydraulic pulse, facilitate row ore mouth regulation.

Jaw crusher is the common equipment in every mining production process. As the equipment, there are some parts easy worn down especially in overload work. As we know, machinery equipment usually cost much, so we have to know how to keep and maintain it to extend the using life.

Hydraulic system in accordance with the maximum allowed by crushing force crusher hydraulic regulator conditioning nut set, when oil pressure rises,vibrating screen, oil pressure adjusting device of plunger spring compression right shift, driving the piston type fuel injection pump piston counter-clockwise, shorten the piston effective vacation to slow up the quantity of oil, limit system injection pressure rise; Conversely, hydraulic system low, boost the volume of oil, steer clear of the hydraulic system of down, hydraulic system inside the initial set keep hydraulic pressure.

(1) an average work during normal working, crusher thrust board in focus on the role cylinder pressure below hydraulic cylinder thrust, action in limit position about the board, usually do not produce mobile, thrust broken material; normal crusher

(2) overload protection when jaw crusher cavity broken in the crushing object, the broken force increases, this time around jaw crusher thrust board within the cylinder role work pressure is more than the hydraulic cylinder offers the thrust, for ruthless oil cylinder cavity hydraulic transient rise, throttle valve valve movement helps make the movement, the machine (hydraulic cylinder) oil leakage, limit thrust board thrust (this is the biggest force) and largest broken protect the equipment;

(3) the broken out fault things in the crushing cavity, due to work cylinder can offer the utmost limit, the pistons thrust right shift retract, correspondingly crusher row ore enlarges, as well as the mouth with the jaw broken motor gear, the broken gradually downward motion and also the final thing in the ore discharge, automatic eliminate broken mouth cavity inside the broken objects. If broken in to the cavity in the output of the 'broken things products' is unqualified, can remove the auxiliary devices;

(4) automatic recovery every time a broken things out, the piston in automatic after covering position, as the separated, action valve in effect about the instantaneous cavity pressure not make valve core recovery limit position on to never discharge system the oil; Concurrently, piston type fuel injection pump in oil pressure beneath the action of adjusting device towards the largest quantity of oil pump to function oil, before work system cylinder piston moves left to limit position. To date, crusher resume normal work condition.

Frequent occasions in overload, jaw crusher adopts hydraulic overload protection has obvious superiority, the power can be as follows:

(1) safe, reliable, sensitive reaction reliability for protection device is fairly important. The hydraulic protection system in order that the device operation, even when could be the system failure as well as the action can't action,conveyor belt, accumulator with buffer role, could make the thrust board in overload, and with the right shift when pressure relay realize power, alarm;

(2) might be adjusted in line with the different occasions overload load by adjusting device conditioning nut adjust overload load;

(3) after overload protection, automatic may be reliable out fault, faster reset to revive normal production, don't need to replace parts, both economic and time;

(4) facilitate computer operation and control, all to easy to realize and fracture process automation.

Methods and considerations can be given, and concrete measures and plans are done by yourself. Whatever, it will get benefits from the right rules. We Hongxing Mining Machinery Co., Ltd. mainly produces large and medium-sized series mining machinery, metallurgy equipment, building materials equipment, etc.We make a range of grinding equipment and production line. The company has passed through ISO9001:2000. We believe that high-quality mining machinery equipment along with your efficient measures, the best profits will show up even for jaw crusher overload work.

05-01-2012 om 06:13 geschreven door annazhao356  

Recently, 'environmental protection' is important and popular in the world. 'Low-carbon' is the aspect of the subject. Low-carbon life, low-carbon consumption, low-carbon trip... To carry on low-carbon is not just in connection with the effectiveness of our country, living environment and industrial development but additional to each and everyone's health for the long term.

Low-carbon is done from oneself. Zhengzhou is the core of Henan and is the big city. With recent years' development and constructions, the environmental pollution is more and more serious. In construction industry, the machinery equipment is essencial, jaw crusher, impact crusher, excavator, grinding mill machine. To protect the environment, it's efficient to reduce and solve the pollution of construction waste: tailiings, waste water, stone slags. One of the solutions is to recycle the construction waste.

Construction waste recycling is the separation and recycling of recoverable waste materials generated during construction and remodeling. Packaging, new material scraps and old materials and debris all constitute potentially recoverable materials. In renovation, appliances, masonry materials, doors and windows are recyclable. In construction waste recycling, there are some considerations.

Most construction waste goes into landfills, increasing the burden on landfill loading and operation. Waste from sources such as solvents or chemically treated wood can result in soil and water pollution.

Some materials can be recycled directly into the same product for re-use. Others can be reconstituted into other usable products. Unfortunately, recycling that requires reprocessing is not usually economically feasible unless a facility using recycled resources is located near the material source. Many construction waste materials that are still usable can be donated to non-profit organizations. This keeps the material out of the landfill and supports a good cause.

The most important step for recycling of construction waste is on-site separation. Initially, this will take some extra effort and training of construction personnel. Once separation habits are established, on-site separation can be done at little or no additional cost.

The initial step in a construction waste reduction strategy is good planning. Design should be based on standard sizes and materials should be ordered accurately. Additionally, using high quality materials such as engineered products reduces rejects. This approach can reduce the amount of material needing to be recycled and bolster profitability and economy for the builder and customer.

For mining machinery industry, the tailings recovery is also efficient to protect environment. And also the advanced machines: portable crushing station, ultra-fine grinder, high-pressure Raymond mill.

05-01-2012 om 06:12 geschreven door annazhao356  

Recently, I have read one article about Prophecy will make invest in Compliance Energy Corporation. The article is like this: Prophecy Resource Corp. reports that it has acquired 5,000,000 common shares of Compliance Energy Corporation (“Compliance”), representing approximately 8% of Compliance outstanding shares by means of a non-brokered private placement. Compliance’s majority interest is the Raven Coking coal crushing machinery Project located on Vancouver Island, Canada in addition to other coal projects totaling 75,000 associated exploration and development acres. The investment represents Prophecy’s first foray into the metallurgical coal market to complement its substantial 100% owned open-pittable thermal coal resources in Mongolia (839 Mt Measured, 579 Mt Indicated). The Raven Underground Coal Project contains high volatile A Bituminous coal suitable for targeting the metallurgical coal market as a blend product or the thermal coal market. The project is owned 60% by Compliance Energy and 40% by a subsidiary owned by Itochu Corporation of Japan and LG International Corp. of Korea. Prophecy paid CDN $1,750,000 (or $0.35 per share) for its interest in Compliance Energy. The total coal tonnage at the Raven Underground Project (as reported by Pincock, Allen and Holt in its NI 43-101 resource estimated in April 2010) is 71,998,201 tonnes of measured and indicated and 59,430,517 tonnes of inferred.

South Fork Coal Company, LLC, a wholly owned subsidiary of Xinergy Ltd., a US Central Appalachian producer of high quality coal, is pleased to announce that it has completed a detailed review of the mineral exploration, development and production activities at its Greenbrier metallurgical coal reserves (“the Property”) located in Greenbrier County, West Virginia. The work was conducted under the supervision of James Canterbury (“Qualified Person”) of Summit Engineering Inc. and is detailed in a National Instrument 43-101 (“NI 43-101″) technical report on the Property entitled “An Independent National Instrument 43-101 Report Summarizing Mineral Exploration, Development and Production Activities of South Fork Coal Company, LLC movable crushing station and screening machines Reserves, Greenbrier County, West Virginia” (the “Technical Report”). The Technical Report indicates that there are approximately 32.4 million measured and indicated mineral resource tons currently leased, from which there are approximately 25.4 million proven and probable mineral reserve tons on the Property in the seven seams evaluated in the Technical Report. These results supersede the estimated results that were disclosed in a press release dated January 31, 2011. The base case mine plan anticipates the Company starting production on or about October 1, 2011, at an average of 10,000 tons per month for 2011, then ramping up to a run rate of 500,000 tons annually in 2012. The company envisions total capital expenditures for the Property to be in the range of US$25 million – US$40 million.

Jon Nix, Xinergy’s Chairman and CEO, commented, “We are pleased to provide all interested parties, including our shareholders, with the additional color on our previously aggregate crushing plant metallurgical coal acquisition contained in this Technical Report. Bernie Mason [Xinergy's President] and his team in West Virginia have done a tremendous job executing our vision of creating shareholder value through organic growth, as well as accretive acquisitions with this being the most significant to date. We expect this Property to have a substantial, positive financial impact on our company going forward.” Similarly, we hope that the prediction will take great development chances and profits for China mining machinery industry. We company will make well preparation for this challenge.

05-01-2012 om 06:12 geschreven door annazhao356  

In present, second-hand market is popular ranging from living commodity, clothes, comestics to computers, machinery. In the complex second-hand market, it's optional to make purchase. Which is the best method to choose mining machinery such as jaw crusher, ball mill, coal beneficiation equipment?

Choosing second machinery for running daily operations of a company or an organization is one of the most cost-effective and efficient ways to increase the percentages of productivity levels. Though, going for such an option might involve certain risk factors like how long the machine would function properly or how much time will it take to produce finished goods, they still rule over the hearts of several business entities because of the fact that used machines seem to be a budget friendly option to them.

The prime reason for purchasing second hand machines is that one doesn’t have to spend huge sums of money on their purchase while exceeding their budgets. An organization’s prime growth is judged on the basis of how cost-efficient it is at the time of deciding for its operational activities. Moreover, companies or business entities that are establishing or running out of losses can opt for second hand machine equipments in order to reduce their cost of daily operations and run production processes smoothly and conveniently.

If you wish to purchase or buy second hand machines, searching for a reputed and a reliable used machine dealer can help you sort out the best machine equipment for your business’s daily activities. However, with ever so expanding Internet market, the search for such machinery can also be done through online shopping portals dealing with the sale and purchase of used machine equipments. Although, surveying machines personally by visiting the stores before investing in them is recommended, they can also be bought directly through portals by paying for them through credit or debit cards.

05-01-2012 om 06:12 geschreven door annazhao356  

Tip of the day: with the advanced technologies, there are more and more advanced machines in various industries. For medicine and pharmacology, it shows the latest and sophisticated machines designed for the process easier faster in the pharmaceutical industry. There are labeling machine, washing machine, powder filling machine, grinding mill machine, liquid filling machine and so on. Hongxing supply all types of grinding mill machines for pharmacology, micro-powder making machine, ultra-fine grinder, high pressure Raymond mill.

Drug grinder for the pharmaceutical, chemical and other industries. With the feature of air-cooled, no sieve etc. It is not restrained by viscosity of material , hardness, and fiber, and can play a good grinding effect on all kinds of materials. Especially suitable for grinding the Chinese Medicinal Materials which with fiber, including viscosity, oil, sugar etc. Widely used in crushing the pharmaceutical raw materials, intermediates, herbal medicine, pesticides, veterinary medicine to achieved ultra-fine powder. Pharmaceutical industry is a vast industry and having so many different types of machines and equipments are implying in this industry. Drug grinder is an ideal and professional updating ultra-fine Crushing machine to deal with all kinds of Chinese herbal medicine, Western medicine, pharmaceutical drugs. The Grinding machine with advanced technology, stable performance, widely used in Western laboratories, hospitals, medicine and health products plant, bio-chemical, cosmetics factory, medicinal plants.

There are double cone blender (mixer) which is used for mixing dry powder and granules in a homogeneous manner. For proper mixing two third of the volume of cone blender needs to be filled The octagonal blender also helps in the same process but for V type blender the powder comes from both sides and because of a suitable speed the result of the powder is much better. As it has got a simple design, requirement of maintenance is also less.

The pharmacology industry is one of the cores. All people can't leave the drugs. To help the pharmacology industry better and make drugs assrued, we manufacture and supply high qualigy powder grinding machines.

05-01-2012 om 06:12 geschreven door annazhao356  

Construction revolution has show the way to globalization and marvelous transportation development all over the world. Not only India is covering behind in the interconnection and interconnection of cities with the best transportation. Road construction equipments is crossing the leading road system of 3 million km all over the motherland, India is witnessing marvelous mobile asphalt plant insurgency different off in modern India. In Indian road construction surveys has passed out the number of mobile drum mix plant armada of around 48.4 million at the end of part and its mounting enormously lacking any ending.

In road construction industry, machinery equipment is essential, such as stone breaker, sand maker, sand washer, grinding mill, excavator etc. Thus, machinery industry develops along with road construction. Indian road construction machinery manufacturer are growing transportation and mobile hot mix plant system has already implicated in heavy road construction projects with general highway development program structure the quality roads plants and national highways connection main cities. In Indian road construction marvelous chance to and enlargement all gates are opened for a variety of road construction machinery and road construction industry to construct infrastructures as roads, national highways, ports, bridges and major road India machinery construction works. The machinery equipments construction machinery and paver contractor development industry is probable to bitumen and pollution unit produce about 20% per annum for the next 15 years.

For China road construction machinery market, the future is similarly bright. Many machinery companies research and develop new types of machines to meet market demands: mobile crusher, VSI crusher, micro-powder grinder, and improve the product service to keep and increase the client groups. Some road construction require and expansion at the front position the market is difficult hot for all types of pollution control unit and road construction machineries related to road, bridges and building best infrastructures. The road construction machinery India is expected to be of great power and major segments which are expecting growth are pollution unit, asphalt pavement and asphalt mixing plants such as asphalt drum mix plant, hot mix plant, mobile asphalt plants. The require for these road india machinery construction equipments is considerable and not only India but countries throughout the world are getting equipment from India of greatest excellence.

05-01-2012 om 06:11 geschreven door annazhao356  

Cement clinker is usually ground using a ball mill. Traditional methods, the ball mill during the processing of materials can usually perform two effects, one is broken effect, one is the grinding effect. General sense, the effect can be broken using other ancillary equipment to complete the crushing. The abrasive effect of the level of its direct impact factors can be attributed to the speed control on the ball. Under normal circumstances, the main ball speed reduction from the basic power distribution unit and drive gear and pulley device control. For the large ball, since the drive motor will start the beginning of a great loss of energy, and because the ball inertia force can not effectively use reducer mill to effectively control speed in a short time.

For cement production line, a breakdown of the number of particles of cement and cement products taste directly linked to the size of ball speed. So, that is, as long as improve their speed by the speed control system produce changes in the material out of or resulting changes in production levels to maintain a constant speed can be a great position to create more profitable business. However, because there are some reverse gear torque limit, can not indefinitely increase ball speed, after reaching a certain level, if that deliberately continue to increase speed, they tend to burn mill reducer drive coil, resulting in equipment discontinued, the general mill maintenance cycle in 1-2 weeks. Such consequences are no different from the enterprise to bring serious economic consequences. Here is the introduction to cement production line's correct method of operating ball mill.

1) the planetary ball mill gear dust cover must be tight to prevent dust from sand intrusion.

2) found gear and main bearing sediment may or invasive treatment should be immediately stopped and cleared, and definitely not delay.

3) the planetary ball mill large tile fever, the occurrence of an accident or near Burnt Burnt should take immediate measures to forced cooling may not stop immediately, to avoid causing 'axle' of accidents.

4) must be strictly enforced to the mining, water supply, add ball is prohibited overload, attention to prevent 'belly up' phenomenon, but not too small for the amount of ore. But does not allow empty-load operation, so as not to bash liner.

5) the screws should be added to the fixed milling hemp liner ring seal to prevent leakage, leakage of plasma.

6) the gap between the liner for the 10-20mm for replacement (when available oxygen welding cutting too tight).

7) planetary ball mill no more than two consecutive starts, the first and second interval of 5 minutes. The third starter must be approved by electricians, fitters with the check before starting.

8) the same shop with a few mill, the two synchronous machine may not start simultaneously.

Apart from ball mill, cement crushers in cement prodction process are very important. Most of the raw materials will have to be crushed before being used to process cement, such as limestone, clay, iron ore and coal, etc. Limestone is the largest amount of raw material during cement production. After limestone mining, limestone is generally of large size and high hardness. Therefore the limestone crushing is very important in the whole material crushing. The common cement crushers are jaw crusher, VSI impact crusher because of the easy principle, convenient maintainence and low cost. However, if the whole cement mining scale is of large size, we usually choose cone crusher or impact crusher to assit jaw crusher and to be secondary or tertiary cement crusher machine.

05-01-2012 om 06:10 geschreven door annazhao356  

The great development of infrastructure investment and economy is obvious and welcomed. Along with the development, there are advantages and disadvantage. There are more and more new types of mahcinery equipment showing up; while increased construction waste also will be increased. In general, we can solve the disadvantages with advantages. As to handling of construction waste, R & D team of Henan Hongxing push the new model equipment, YGE coarse crushing movable crushing station to achieve the recycling of construction waste re-use. The crusher machine is conveying, crushing and screening as a whole can be crusher walking equipment, walking up and convenient, reducing the needs of mobile crusher due to the unnecessary loss, reducing the investment costs, thus becoming a new 'King of Crusher.' And also The integrative full-set machine frame eliminates the segregate components’ disadvantages, such as jobsite complicate, material waste and work time long. The proper space arrangement of this machine frame improves the flexibility of jobsite residence. It indicates that China has successfully developed and put into operation crusher production has reached a new level of technology, and attracted close attention at home and abroad, especially in the opencast coal mine and construction waste disposal.

In the international financial crisis, the Dawn Heavy Industries Recognizes that the survival and development of wind and waves in order to gain a firm foothold in the market, to the unique in the 10000 Ma, they must go beyond innovation, competition, growth, and thus a step by step to climb national and even international top-notch science and technology summit. It is based on this strategic thinking, Hongxing Machinery every year a large number of human and financial resources for science and technology research and development, and achieved rich fruits and its production of a series of crusher machine, sand making machine, grinding machine and other grinding equipment, regardless of type or quality of technical level, are among the best in the same industry at home and abroad.

In accordance with the survey analysis, since the second half of last year, with the world financial crisis on China's industry, especially building materials, cement, equipment, industry, the impact and influence, Hongxing Machinery insist on researching, testing and comparison to face the 'winter' and run independently of crusher equipment - YGE movable crushing plant. At the same time Hongxing's machines have been exported and known in Middle East, South America, Europe, Japan and worldwide regions.

05-01-2012 om 06:10 geschreven door annazhao356  

Mining machinery industry is a large property. Tremendous machinery companies there. Mining operations can be large and complex undertakings. In order to keep things running smoothly and safely, you need to have the mining supplies on hand to make repairs and make sure your project is completed on time. Nowadays, internet is popular, and online business is common. How to select proper and excellent companies online to cooperate with your own business?

Many mining equipment manufacturers have detailed specifications and photos of their inventory on their websites. When browsing the offerings of a mining equipment manufacturer, look for deals on refurbished or used mining equipment. Find everything from dryers and kilns to screens and centrifuges. No matter how big or small, you can find the mining tools necessary for any type of mining operation, or any stage of processing materials. Find mine equipment for:

A. Drilling and excavating: crane, excavator.

B. Screening and feeding: vibrating screen, vibrating feeder.

C. Weighing and monitoring.

When you scan the company's website, you can learn about its scale, products, establish year, financial foundation. Maybe, there are some frake messages. It's necessary that you must be cautious. One company, the enterprise culture is important and stands the image. Henan Hongxing is a joint-stock company. It is located at the High & New Technology Industries Development Zone of Zhengzhou,China with an area of 50 thousand m2 which includes 15,000 m2 of standard heavy duty industrial workshop. Equipments include more than 160pcs of large and medium sized metal processing, riveting and installing machines. The maximum assembly lifting capacity is 120T. Hongxing is the main manufacturing and exporting base for the mining machineries. We believe that Henan Hongxing is your proper and best choice for cooperation.

04-01-2012 om 07:43 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 nation’s intense need for energy. China is also a major source of commodities such as iron ore and bauxite. China has quickly emerged as the world’s largest producer of mining equipment, due in large part to the nation’s 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.

China mining machinery industry, Hongxing Machinery Co., Ltd., A ZA!

04-01-2012 om 07:43 geschreven door annazhao356  

At present, vice excutive sectary - Mr. Jingming Li of CMTBA, said thattraditional thinkings and production methods is going through deep changes,and the evoluation of 'green industry' is rising in machine tool industry.Todays, our machine tool industry is trying to realize 'green manufacture'through four types of technical measures:

a. Realizing low carbon through technology innovation.

b. Realizing low carbon through processing craft innovation.

c. Realizing low carbon through structure reforms to reduce consumption.

d. Realizing low discharging through recovery and lubricant.

As to how to realize low carbon through structure reforms to reduceconsumption, Mr. Li gave an example. Nowadays, Tianjin Jingji Grinding MachineCompany, Chongqing Machine Tool Company manufacture big size machine tools, which adopt mainly cavity wall structure, and they arrange mechanicalstructures through theory analyses and meticulous strategies. Thus the bestrigidity can be obtained by the fewest materials. Furthermore, Mr. Lirecommended the popular technologies and methods like automatical recovery andseparation, dust collection and recovery, self-lubricating materialsapplication, less oil lubrication technology. All the technologies can reducethe discharges and shrink environmental polution.

Hongxing holds the call to manufacture mobile crusing station, stone crusher,cement production line, drying machines and so on.

04-01-2012 om 07:42 geschreven door annazhao356  

Mining is becoming increasingly important to Alaskans looking for good-paying jobs. Not only does the industry provide high wages, the geographical diversity of the mines provides employment opportunities to oftentimes economically challenged rural regions of the vast state. According to the Alaska Department of Labor & Workforce Development, the number of mining jobs in Alaska has jumped 40.3 percent since 2000, almost triple the statewideaverage employment growth of 14.1 percent for the decade.

The Australian minerals industry involves the exploration and mining of minerals (including coal) and the associated minerals processing industry. It is one of Australia’s most important industries and provides direct and indirect benefits to all Australians. In recent months, the unprecedented global growth demand for minerals has slowed considerably and companies in the resources sector are scaling back some operations and planned expansions and a number of workers have been laid off.

Of course, in many other countries or regions, the jobs of mining industry are welcomed similarly. It also drives the growth of mining machinery industry. Mines are often the largest, or among the largest, employers in their borough or census area. Mines also tend to be located in remote areas where other employment opportunities are scarce. For mine safety, high-quality mining equipment is essential. Various models of equipment consists of jaw crusher, impact crusher, grinding mill, beneficiation equipment, mobile crushing plant and so on.

High-quality products and high-standard enterprise management can guarantee stable productivity, high efficiency, safe working environment. Hongxing runs obeying the rules.

04-01-2012 om 07:41 geschreven door annazhao356  

Problem on RMB exchange rate has been advertized in large scale. Many western countries put pressures on China around RMB exchange rate. Especially, the issue of Sino-US trade surplus has made the RMB exchange a much more important topic than ever. Since the Chinese government changed its exchange rete regime on July 21st, 2005, studies on further reform steps have become booming. Nevertheless, China government state many times that they will keep RMB exchange rate stable. Of course, with the appreciation of RMB, it brings many significant influence on various industries such as on inflation, especially on its persistence, hence the persistence of shocks to price stability. Henan Hongxing is specializing in exporter of mining machinery equipment. Views on this point, there are some analyses and predictions.

The appreciation of RMB will affect exports, mining machinery include. We can give an simple example. Supposing that Henan Hongxing Machinery Co., Ltd export a new type sand making machine to South Africa, and both sides agree with paying by U.S. dollars, while the equipment price is $25000. If before the appreciation of RMB, the exchange rate is like this $1 = 8.3 yuan RMB, so we can get 207500 yuan RMB from banks; now the RMB exchange rate is $1 = 7.9 yuan RMB. So after appreciation we can only get 197500 yuan from banks. Thus vested interest will reduce greatly, even will make the losses not to keep the exports. As to mining machinery, other exporting enterprises meet the same problems and no exception.

Present RMB exchange rate has raised to $1 = 6.6415 yuan, which breaks through the gate of 6.65 to creat a new top. And also, some specialists predict that the pressure of RMB appreciation is still great and it signs the unstable RMB exchange rate.Under this situation, how to deal with the trend for mining machinery industry? Hongxing company holds the view that mining machinery exporters shall change the main business point and pay more attention on domestic markets. With the development of science and technology, demands on domestic markets are more and more, which will also take great chances and profits. For example, foreign countries has raise the price of steel that affects the domestic crusher industry. Therefore, many enterprises are trying to change the strategies to avoid the attack and loss. At present, China construction industry is prosperous. However, in construction process, mining machinery is essential. For example, jaw crusher, grinding equipment are used widely. So in the trend of RMB influctuation, it's efficient and wise to grasp domestic markets of mining machinery industry.

04-01-2012 om 07:41 geschreven door annazhao356  

In task of heavy mining machinery, it's important for equipment model selection and operation. However, later period maintenance is similarly significant. Proper and timely maintenance can extend the life of one equipment. Here, taking cone crushers as the example.

A. the materials must be in the middle of the distributor, see diagram 14. it is not allowed to put the materials into the crushing chamber directly, because it will make the crusher overloaded and the liner plate will be abraded unevenly. Correct feeding conditions :

a. the materials are distributed equally to the crushing chamber.

b. The quantity of materials should not higher than the mortar.

B. the max feeding size should not equal to the feed opening, (the max feeding size=85% of the feed opening) otherwise, it will lead to:

a. the capacity is low

b. some spare parts will be damaged.

c. crusher is not allowed to start in overload condition in case of accident.

d. when stop the crusher, stop the feeder first. After the materials are all discharged out, stop the crusher.

e. the locking system and hydraulic station should be checked often to avoid problems.

Capacity of the crusher

Capacity is subject to feeding method, material size, size of final product, material nature, temperature, etc. the range is wide. The capacity is under certain conditions.

Change of mortar

There are u-shaped bolts on the adjusting ring. Fill zinc alloy into the space. When installing or changing the mortar, after 6-8 hours' operation, check the fastening conditions and screw the U-shaped bolts again.

Change of the crusher inner wall

The Cone crusher inner wall is fixed to the cone crusher body through a cone end. There is zinc alloy between them. When installing or changing the inner wall, after 6-8 hours' operation, check the fastening conditions. If there is loose, fasten it.

Mesh of gears

The friction of round plate changes the gap between gears. To make the gears properly meshed, clients are required to put a mat on the bottom cover. The thickness of the mat should equal to the friction of the round plate.

Bowl-shaped bearing and sealing device

When installing the bowl-shaped bearing, make sure the oil seal is not damaged by the steel cable.

When assembly, scrape the spherical surface to ensure the space between crushing cone and the spherical surface is kept within 0.35-0.5mm.

The bowl-shaped tile is fixed to the bowl-shaped bearing support through lock pins to prevent the tile rotate in circle.

The bowl-shaped bearing support and the frame are fixed together by lock. If there is space between the support and the frame, deal with it immediately.

The cylinder liner and the frame is the third transient assembly.

To avoid the liner rotating, the upper part of liner is filled with zinc alloy. When changing new liner, make sure it is according to the practical size because the after long time's operation and assembly, some changes may happen to the crusher. If the space is too large, the liner will be broken.

Conic liner

The cone cover and the eccentric shaft should wring each other. Fill in some zinc alloy to stop the cover rotating. The space should be full of zinc alloy. The cover may change its shape due to the hot zinc alloy, so check the size of d1, d2 and B of a new cover. If it is incorrect, correct it. When making spare parts, make sure it is fit for the practical size of the inner diameter of eccentric shell.

Springs

A. The function of springs is: when some uncrushed materials enter the crusher, they will prevent crusher from damaging. Therefore, the pressure of the springs and the crusher is corresponding to each other. If the crusher is in good condition, the spring is stable; only when uncrushed materials enter the machine will the springs be pressed.

B. If the upper part of crusher vibrates, clients are required to check the machine carefully and solve the problem. If pressing the springs incorrectly, some parts may be damaged, because pressing the spring will increase the pressure of the crusher.

The reason why the upper parts of crusher vibrate is:

a. feeding unevenly or overfeeding

b. there are many small lump materials in the raw materials or the humidity is too high

c. the discharge opening is too small.

The outer rotation parts of the crusher should be protected with cover which is prepared by clients.

04-01-2012 om 07:40 geschreven door annazhao356  

Hongxing impact crushers are the heavy type equipment, and also called sand making machines. The installation and operation both have fixed ruels and instructions. Generally speaking, if you install and use the sand making euqipment according to the following instructions, the equipment using life, product quality and personal safety can be guaranteed. OK, let's list the attentions when installing and operating a sand making machine.

A. When installation, adjust the horizontal position. The machine must have the basic conditions:

1) feeding materials sequent .

2) large pieces of materials can return back to the machine.

3) there is the lifting equipment upon the machine and it can lift the machine conveniently.

4) there is enough space to check up on one side of crusher.

B. Common ruels when operating the sand maker.

1. Preparation works before start-up Sand making machine has a trial run for 4 hours in factory and all parts are in order. However, you must check up the machine again before start-up.

1) Check up turntable is balanceable or not, that is, wearing parts is installed in a whole set or not .

2) The position of triangle belt is suitable or not, that is, strain is suitable or not.

3) All parts are connected steadily or not, and screws are fastened or not 1-4 Check up if there is a tool or sundries in the machine. Close the inspection door and plug into safety bolt. Don't open inspection door when operation. 1-5 Check up the running direction of engine and turntable is correct or not: anticlockwise rotation from the feeding port 1-6 Check up lubrication is enough or not.

2. Start-up without load

1) Ammeter is working or not .

2) The control system: Y/' reducing the pressure start-up; Y/' time transfer relay should be adjusted as 50S or so.

3) Start-up of double electrical machine: Stand-alone start-up and Two engine start-up. You can choose the start-up according to the power of electric network.

3. Start-up with load.

1) Feed the materials after the machine have a successful trial run without load and the running of engine becomes ' type.

2) Max Feed Grain Size must be executed strictly according to instruction.

3) You'd better put in the materials less than 5 mm at the beginning of start-up ( at least in half a minute) so that it can form protection layer in the machine.

4) When you feed the materials at the beginning, there will be a 30-60 seconds imbalance the machine. However, you mustn't stop the machine at once and that feed more materials until the vibration disappears. If there is violent shock and abnormal noise, you should stop the machine to check up carefully.

5) You'd better add magnetic separator beside feeding advice for fear that iron damages the machine chamber in the machine.

6) Max electric current value is not exceed rated current one of running motor when feeding the materials. If the humidity of raw materials is too high, it maybe block the feed opening of central flow and overflow port of scattered flow and influence electric current value. The electric current value is too high and can't be lower because the overflow port of scattered flow is blocked. Contrarily, the feed opening of central flow is blocked. You must stop the machine to clean up all feed openings and then work sequentially.

7) Dual drive motor must regulate and bring the strain of two groups of triangle belts into harmony. Look into two groups of electric current value of motor is accord or not.

4. Stop the machine

1) You must stop feeding the materials before stopping the machine.

2) The ammeter should be without load before stopping the machine.

04-01-2012 om 07:40 geschreven door annazhao356