By the Xinjiang Uygur Autonomous Region Economic and Information Technology Commission, Department of Transportation, Housing and Urban Construction Department, Land and Resources, Department of Commerce, Investment Development Board and the Corps, Department of Transportation co-hosted the '2011 China Xinjiang International Construction mining machinery, engineering equipment Exhibition' (referred to as the Construction Exhibition) will on May 27 to 29 in Xinjiang International Expo Center, Xinjiang in western China is the most professional mining machinery, construction equipment exhibition.

Yuan Jiang provinces take the lead, opened a new situation Yuan Jiang

2011 is the 'second five' first year, 19 provinces and cities of the Yuan Jiang will enter a new round of the sprint stages, as the Yuan Jiang 19 provinces of Henan, Xinjiang, bear more than one area of transportation, water conservancy, etc. infrastructure and housing, employment, medical and other Anju Fu 'engineering. 'Twelve Five' period, the total capital of Henan Yuan Jiang will be further improved.

Henan is a mining machinery, engineering machinery enterprises gathered in the province, and Xinjiang to 'leapfrog' development of mining machinery, engineering machinery and equipment and has a huge demand and promote investment in Henan enterprises to Xinjiang Xinjiang will create a win-win trade the situation. '' From the government to the enterprise Yuan Jiang Yuan Jiang, Yuan Jiang ideas expanded, the situation will benefit a wide range of Xinjiang, Xinjiang benefit mining machinery, engineering machinery industry.

Exhibition highlights the international elements of construction

Collection of well-known companies, the rich display products are an essential factor in the success of the show, and diversified, international construction exhibition is also an established development. Organizing Committee of the feedback information from the current point of view, this aspect of the show is moving steadily forward.

Sandvik, Atlas Copco, Metso Minerals of the exhibit in the field of mining machinery to complete the formation of the Big Three, when the grand exhibition of mining machinery area can be expected. And Xu workers, pushing Hill, Kobelco mining machinery, engineering machinery, led the Big Three mining machinery, construction machinery exhibition will be a more beautiful landscape.

Will be held during the exhibition '2011 China Xinjiang International Mining Exhibition and Forum', when mining giant Sandvik, Atlas Copco, Eirich showcase their signature products in the same time, the symposium will be held separately on the new technologies and new equipment in the mine field of application to the authority of analysis and argument.

'Xinjiang Tianbao advantage of its presence in the country,' second five 'and the provinces and municipalities to further help and support, Xinjiang will become the shining jewel in the Northwest.

11-01-2012 om 05:13 geschreven door annazhao356  

Mining accommodation is among the things that must be secured, if you are running a mining business or activity. Mining is a process that extracts natural minerals from the depth of the earth. Most often, the mining is located on areas that are outside the city. It can be in caves, hills, mountains, or plains. Sometimes, it can be just within the city.

Regardless of the location, there should be a place or shelter where miners can take their rest and sleep. If you are involved in mining activities, it is part of your duty to stay in the area. You can only leave there once or twice a month depending on the stipulations of the contract. The accommodation must of course provide comfort and safety to miners. As it is impractical to build houses or structures for shelter, these associations or organizers resort to making use of existing resources. One of them is the shipping container. Shipping containers are made of steel, hence, they can last for almost a lifetime.

The primary purpose of containers is storage, so you can guarantee that the merchandise is safe while kept inside the container. However, since it is steel, the temperature inside it is also high especially during summer.

Shipping containers can be renovated to become a comfortable shelter. Among other things, they are used to construct apartment, studio, condominium, offices, classrooms, and even clinics. For mining accommodation, the shipping containers are perfect. Engineers or construction workers would use several containers to make several shelter rooms with kitchen and toilet.

Shipping containers are cheaper compared to the raw materials in building a structure. Also, since mining activities are not forever, it is only practical to use containers because at anytime, the mining activities will stop, and the purpose of the shelter becomes useless. The containers come in different prices, depending on the age of the containers.

They are also resilient. They can withstand the extreme weather conditions of an area. So, if the mining locations are either prone to winter or summer months, the containers are durable.

In order to make summer bearable, air conditioning systems can be installed or a portion of the containers are cut to give way to windows. Some professionals cover the entire containers with another with Styrofoam or carton materials coated with Uv protectors.

Another advantage of containers is accessibility. After a few years of using them, shipping lines are not hesitant to dispose the containers. Hence, they are easily available wherever you are. Despite the locations, these steel container vans can be transported and delivered. Whenever there are docks, containers are sure to be available.

Constructing a building or structure require cutting of trees. But, if you choose container vans as a pre-existing structure, you are helping save the environment. Hundreds of trees will be saved. Dumping them in landfills will take thousands of years before they are completely disposed of. Even then, the chemicals and rust are harmful to the environment. Using them such as for mining accommodation is a brilliant idea.

11-01-2012 om 05:13 geschreven door annazhao356  

There are several forms of mining that are used to extract minerals and rocks from layers of earth and open-pit mining is one of these methods. This method uses a borrow or open pit and is most frequently used in situations where the desired rocks or minerals are located close to the earth’s surface.

A. The Structure of the Open-Pit Mine

An open-pit mine is structured in steps, often also termed “benches,” which are the pit’s vertical levels. These steps commonly range from four to sixty meters, but the size is largely dependent upon the machinery used by the mining company. The walls of the pit are called the batter, while the flat portion is called the berm or the bench.

Open-pit walls will generally be dug in a manner that minimizes any danger of rock falls or landslides in the event of poor weather conditions such as heavy rain. However, there may also be supports such as rock bolts or shotcrete used to stabilize the area for workers. In addition, many open-pit mines require water relief measures to be put in place. In some instances, bore holes may be drilled into the wall, which can also cause wall failures.

B. Hauling Rocks and Minerals from an Open-Pit Mine

All mines have to have a way to haul out the ore that is mined. Most open-pit mines have a roadbuilt at the pit’s side specifically for hauling away the ore, as well as any waste rock. This roadallows trucks to move safely beside the mining area and obtain their respective loads.

The waste is also an issue that has to be dealt with accordingly in any mining situation. In mostcases, waste rock will be placed in a waste dump, often an area close to the pit’s edge that is alsostepped in structure.

C. What is Left Behind by Open-Pit Mines?

Tailings are a telltale sign of a former mining operation. Tailings are the leftovers of ore that was processed and, if fresh, it is often found in slurry form in a settling pond or what is called a tailings dam. The water eventually evaporates and, if left unattended, may pose a hazard to wildlife and humans alike. Tailings may have high levels of toxicity because there are often sulfide minerals present in them, along with cyanide and other chemicals used in the extraction of ores and minerals.

D. The Commonality of Open Pit Mines and Their Fate

Most people refer to open-pit mines as quarries, so they are a great deal more common than onemight otherwise realize. In most areas that they exist, open pit mines are often repeatedlyenlarged to the point that the resource has been exhausted or until the mining process is nolonger economically feasible.

Once an open-pit mine is closed, there are several scenarios that may occur. Reclamation andrestoration has been a more recent issue, meaning that some companies that own open-pit minesmust take measures to restore the land prior to leaving the site. Other areas convert these miningareas into landfills, lakes or other ventures.

11-01-2012 om 05:13 geschreven door annazhao356  

World countries will give priority to the development of coal open mining as the main way to increase coal production, as long as the conditions and try to achieve centralized mining, to raise productivity and reduce costs. Opencast coal mine are generally buried in the ground the environment is harsh, broken line basis generally do not create, and use their own mobile crushing station drive in any terrain conditions, can achieve the development of workplace. Mounted mobile crusher crusher (rough crushing with jaw crusher, impact crusher with the broken, with crushing cone crusher, stone crushing and shaping needs optional sand making machine), screening system, monitoring system is one that enter the job site without having to install the work immediately.

The introduction of mobile crusher station, confirmed that the current show broken machinery of digital product development, parallel, integrated and knowledge-based trend. One figure has become the core of rapid technological innovation and development. Advances in information technology, and promote no one from the current mining technology, mining technology to automate the traditional core of the automatic or remote control mining mining to advanced sensors and inspection and monitoring system, intelligent mining equipment, high-speed digital communications network, the new mining process integrated into the main technical features such as 'no man's crusher' development, mobile crushing plant into China's coal mining area.

Construction waste recycling rate is high, the use of a renewable resource. Construction waste in the waste by sorting, crushing, most can be re-used as renewable resources, such as brick, stone, concrete and other materials through the broken, can replace the sand for mortar, plaster, play concrete pads; focused on the latter to recover scrap metal smelting, metal materials can be re-made; bamboo wood waste can be used in the manufacture of artificial wood. Utilization of construction waste is to save resources and protect the ecological and effective way. So in recent years, especially in construction, building materials production, environmental protection and related industry has begun construction waste recycling, resulting in a certain economic and social benefits. Production of building materials using construction waste, but also reusable building materials, renewable, recyclable find a way out. Current use, though not very common, but its market prospect is broad.

Catering to this trend, Henan Hongxing manufactures mobile jaw crusher, mobile impact crusher, mobile crushing station and other advanced crushers to meet clients' demands and markets' needs.

11-01-2012 om 05:13 geschreven door annazhao356  

Data indicated that during the second five, China mining machinery (crushers, sand making machine, industrial milling machine), construction machinery will continue to be steady growth rate of 17% growth for three reasons.

First, China's urbanization rate is 47%, which compared with 80% of urbanization in developed countries there is still much room for growth, and the country is also increasing urbanization in the implementation efforts, enough to support this part of our mining stone machinery, construction sand making machinery, construction machinery industry increased steadily.

Second, the emerging industry to become the strategic focus of China's economic development, so future high-capacity long-equipment manufacturing prospects are very bright.

Third, although China's tightening monetary policy, fiscal policy is still active, the future growth rate of fixed asset investment is still able to maintain 20% growth, such a growth rate of investment in fixed assets is calculated, the second five at the end China mining machinery, engineering machinery sales will reach 900 billion is not a problem.

China mining machinery, engineering machinery industry's rapid development over the past 10 years, thanks to national policy, but during the second five, the country's policy to enter a period of adjustment. In high-speed development, the industry actually needs some adjustment to future growth of open space, mining machinery, engineering machinery industry should seize the opportunity of adjustment during the second five, and strive to organizational innovation, innovation, and increase overseas M & A to make the future to more healthy and sustainable development.

China has become the world's construction machinery, mining machinery is the largest market, China's right to speak is very small, because China's construction machinery, mining machinery industry compared with foreign countries, there are technical standards, safety standards are not uniform and many other the bottleneck, while China's construction machinery, mining machinery industry to keep learning, to get rid of the kinds of impact the core components.

China and developed countries, there are still a large gap between China's mining machinery, engineering machinery future direction of the high-end equipment, intelligence and equipment. China in the future if they can be resolved within five to ten years of independent research and development of high-end components, then the voice in the world will be able to upgrade. China's manufacturing industry to achieve the future of information technology, technology to transform traditional manufacturing industries. If you want to break up the core components, we must strive to achieve self-development or acquisitions abroad.

11-01-2012 om 05:13 geschreven door annazhao356  

China is hungry for metals, whether we’re talking copper, iron or aluminum. So is Europe…and, in fact, the rest of the industrialized world. We are seeing an insatiable building up for mining companies, whether early-stage or in production. The interest is in mining the metals in the ground.

The market action points to speculative buying of mining companies, especially those with a massive reserve of metals in the ground waiting to be developed.

Just take a look at the proposal by Cliffs Natural Resources Inc. (NYSE/CLF) to bid for Canada-based mining company Consolidated Thompson Iron Mines Limited for CAD$4.07 billion. At stake is the massive concentration of iron ore in the ground, which is used to make steel.

Another ongoing battle in the Canadian mining sector has dragged on for several months to acquire the massive but undeveloped iron-ore deposit located on the Mary River project in the Canadian territory of Nunavut, which is held by Canada-based Baffinland Iron Mines Corporation (TSX/BIM).

The battle for Baffinland Iron Mines began in September 2010 when Nunavut Iron Ore launched an initial bid of CAD$0.80 for the company. It is interesting that Nunavut Iron Ore was formed for the sole purpose of buying Baffinland Iron Mines and is backed by private U.S. equity.

The problem was that the CAD$0.80 bid was vastly under-valuating the value of the iron ore in the ground. Yes, it will cost an estimated $4.0 billion to get it out; but once this is done, analysts believe that there will be enough iron to feed Europe for years.

This is why the battle is ongoing for this junior mining company that has incredible potential. The bids have steadily risen after Europe-based steel behemoth ArcelorMittal entered into the bid. The price of Baffinland Iron Mines traded as high as CAD$1.58 on Wednesday, nearly double the initial bid price. And, by all estimates, the price required will continue to rise. ArcelorMittal has a battle chest of money available for higher bids. Nunavut Iron Ore has limited finances, but has said that it is seeking out cash-rich Chinese companies that are also hungry for iron resources to fuel the country’s massive economic engine.

Arbitragers have been trading the stock based on expected higher bids, and so far this has played out well. If you see bids like this surface and especially on smaller mining companies, then you can try to make money buying in and selling higher. Or scope out small mining companies with vast resources. These companies will drive speculative trading in 2011 , 2012 and beyond.

11-01-2012 om 05:12 geschreven door annazhao356  

Hematite iron ore deposits are presently exploited on all continents except Antarctica, in the largest intensity in South America, Australia and Asia. Most large hematite iron ore deposits are sourced from altered banded iron formations and rarely igneous accumulations.

In hematite ore deposit mine, the hematite ore can easily be mined and beneficiated running a simple crushing and screening process of all time shipped on a steel producer.

The mine operation including crushing, screening, stockyard blending, recrushing, grinding, classification, desliming, flotation, thickening, filtration, stacking, product stockpile, tailings pumping and reclaiming etc. Hongxing Machinery offers front-end tip stations, primary crushers, secondary crushing, semi-mobile crushing station, screening, conveyors, stockpiles, grinding equipment plus a train-loading station for hematite ore processing.

06-01-2012 om 08:21 geschreven door annazhao356  

Slag is a byproduct of metal smelting, and hundreds of tons of it are produced every year all over the world in the process of refining metals and making alloys. Like other industrial byproducts, slag actually has many uses, and rarely goes to waste. Slag appears in concrete, aggregate road materials, as ballast, and is sometimes used as a component of phosphate fertilizer. It might often be regarded as to become a combination of metal oxides and silicon dioxide.

Common components of slag include the oxides of silicon, aluminum, and magnesium, as well as sulfur, which is always present. Slag also contains phosphorous, calcium, ash, remnants of flux materials such as limestone, and remainders of chemical reactions between the metal and the furnace lining.

Slag is produced during the smelting process in several ways. Firstly, slag represents undesired impurities in the metals being smelted, which float to the top during the smelting process. Secondly, metals start to oxidize as they are smelted, and slag forms a protective crust of oxides on the top of the metal being smelted, protecting the liquid metal underneath. When the metal is smelted to satisfaction, the slag is skimmed from the top and disposed of in a slag heap to age. Aging slag is an important part of the process, as it needs to be exposed to the weather and allowed to break down slightly before it can be used.

In slag crushing process, there are many euqipment used, like jaw crusher, slag crusher, grinding mill, belt conveyor. Zhengzhou Hongxing is the popular manufacturer of all types of crushers including slag crushers in China together with grinding mills and other mining facilities. At present, our slag crushers have been sold and exported at home and abroad. For all clients, Hongxing can provide high-quality services and low quotations.

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

For all heavy industries, machinery and construction equipment are important in the construction and product projects. As is known to all, mining industry is the core industry in national economy and plays a very important role in China economic construction and social development. Naturally, mining equipment is also vital for mining industry. Mining machinery is used for extraction of minerals and rich selection of mechanical and other operations, mainly including exploration machinery, ore mining machinery and mineral processing machinery.

There are plenty types of mining machines in mining equipments industry. For domestic industry, it has already several mature equipments, such as exploiting equipments, mineral specification equipments, crushing equipments, grinding machines, sand making machines, sand washing machines, screening machines, mineral heading assembly, mineral loading equipments and optional equipments, etc.

Exploration machinery is mining euqipments used in the pit and drilling prospecting operations. It’s a kind of mining machinery. Pitting is excavating certain area of tunnel in deep accumulate, loose rock ore mining or , in order to understand the geological condition before mining operation. Mining machinery includes ore mining machinery and mineral processing machinery. The first mining equipment is mainly used for metal ores and nonmetal ores. By ore dressing process the processing machinery can be divided into crushing machines, grinding machines, screening machines, sorting (the sorting) machinery and mechanical dehydration.

Directing at some mining equipments company in mining market, they are on a small scale, large numbers and distributed widely with inefficient management and result in excess production capacity in domestic mining equipment industry. If things go on like this, Not only these companies can't live long but also would troubles get brought to our mining equipment industry. As China government turn energy saving and emission reduction on, weeding out low capacity will be sooner or later.

At present, because of serious environment polution, all governments advocate 'green industry' 'environmental protection'. For responding the calls, Chinese mining industry companies start various methods to make innovations, such as tailings recovery, energy recycling, new machines development for less polution such as mobile crushing station, ultra-fine grinder. With the trend, the competitives in the industry are more and more fierce.

The main products are newly-designed sand making machine, vertical shaft impact crusher, compound cone crusher, impact crusher, jaw crusher, high pressure grinding mill, vibrating feeder, vibrating screen, belt conveyor and sand washing machine, etc. Henan Hongxing Machinery Co., Ltd., the famous compay in China, has formed a complete production-chain that takes crushers and mills as the main products and vibrating screen, vibrating feeder, etc. as supplementary products.

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

Todays, prices of mineras ore and petroleum are in large fluctuation. And the situation is obvious.

Mining and petroleum industry are the two main industry all over the world. If one of them changes, it must affect global economy in some degree. Let's learn about the stake from research and development of the Research & Development Corporation of Newfoundland and Labrador (RDC).

'Leading-edge geoscience R&D plays a critical role in supporting mineral and petroleum exploration and development,' said the Honourable Susan Sullivan, Minister of Innovation, Trade and Rural Development. 'As Newfoundland and Labrador's mining industry continues to grow, research and development will assist in greater exploration and development. These investments, through the Research & Development Corporation, mark a positive step in increasing the potential to develop new mines and invite new high value business and technology development opportunities for Newfoundlanders and Labradorians.'

Mining is the second largest industry in Newfoundland and Labrador, employing more than 4,900 people in rural areas of the province, while oil production represents almost 27.5 per cent of Newfoundland and Labrador's nominal gross domestic product. The total value of minerals and petroleum production in 2010 was $12 billion.

'Newfoundland and Labrador is home to rich mineral resources, which offer students, faculty and industry partners tremendous opportunities to explore and discover,' said Dr. Christopher Loomis, Vice-President (Research), Memorial University of Newfoundland. 'This funding will build on Memorial's world-class expertise in geosciences and also help us forge stronger relationships with the mining and petroleum industries.'

The phenomenon appears not only for RDC, and it's appliable for China. At present, with the rising price of iron ore, China crusher industry and even the whole mining machinery industry have a great attack. Jaw crusher, impact crusher, mobile crushing plant are adjusted on prices, technologies, structures and services.

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

With the situation of continous technology innovations, some enterprises with strong competitive sense have aimed at domestic advanced consumers and matched product accessories. Just as the same as the situation in other countries, crushers were used in many industrial field, such as chemical industry, mining, construction, irragation works,metallurgy,coal mining, glass making etc in china and the most important applying field is cement producing, road paving and Mining, this application covers about thirty percents of the whole application of crushers.

At present, our crusher manufacturing industry has been in the rank of international production countries, and the comprehensive competence and development motivation of mining machinery industry are getting close to developed countries.

the life of the crushers itself is a problem(it seems that just for the buyer of crusher,the life of crushers is a problem,but the fact is for both seller and buyer,we hope our crushers get a life as long as possible).generally, a smaller crusher has just three to five year life,so,every five years later,we need update(or we can say buy a new one,it depends how you maintain your crushers)our crushers,the survey tells us a truth that twenty percent of crushers in china need to be updated every year,and the survey also reveals that many crushers have been used over their life-time anticipation.so,every year,the crusher market will get a wave of updates,that’s the second reason .

the life of the crushers itself is a problem(it seems that just for the buyer of crusher,the life of crushers is a problem,but the fact is for both seller and buyer,we hope our crushers get a life as long as possible).generally, a smaller crusher has just three to five year life,so,every five years later,we need update(or we can say buy a new one,it depends how you maintain your crushers)our crushers,the survey tells us a truth that twenty percent of crushers in china need to be updated every year,and the survey also reveals that many crushers have been used over their life-time anticipation.so,every year,the crusher market will get a wave of updates,that’s the second reason .

When the export of a product increase fourty to seventy percent,we call it a booming period of the product,then it runs into a critical period with trade friction appearing,that’s where chinese crusher producers stand in.so,we should remind our enterprises that we should keep ourselves alert on the probable trade friction.

Chinese crusher production scale has been in the top list of the world,but we still get a lot to learn,and as the increase of the export of crushers,chinese crusher producers will have face many contesters from all over the world,they still get a long way to go.

Appearance of hydraulic cone crusher and mobile crushing plant make a solid foundation for China crushers stepping into international market. The mark of 'Made in China' is outstanding at home and abroad.

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

Environmental issues received increasing attention during the last three decades of the 20th century, a situation that no doubt will continue as we move into the 21st century. Many rare mineral ore is disappearing with cities' rubbish. Human research and develop new technologies which is the main reason to lead rare mineral reserves down.

Reported by 'New Scientists', mineral resources is the same with petroleum, and both are renewable. There is a question 'how long do mineral resouces last to be exploited?'

Because the processes that form ores operate on geologic time scales, the most economic mineral resources are essentially nonrenewable.New deposits cannot be generated in human timescales.But, as mentioned previously, as the reserves of materials become depleted it is possible to find other sources that are more costly to exploit.Furthermore, mineral resources are not evenly distributed. Some countries are mineral-rich; some are mineral-poor. This is a particular issue for strategic mineral resources.

How long current mineral resources will last depends on consumption rates and reserve amounts. Some mineral resources will run out soon, for example global resources of Pb, Zn, and Au? will likely run out in about 30 years. U.S. resources of Pt, Ni, Co, Mn, Cr less than 1 year. Thus, continued use of scarce minerals will require discovery of new sources, increase in price to make hard-to-obtain sources more profitable, increased efficiency, conservation, or recycling, substitution of new materials, or doing without.

In order to help solve this crisis, China government propose 'sustainable development''green energy'. Almost enterprises are trying to change into 'green enterprise'. Hongxing manufacture mobile crushing station, slag crusher, tailings recovery, ultra-fine Raymond mill to save the materials and reduce the polution.

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

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