Impact Crusher Helps Improve the Grade of Mine Tailings

In the first half of 2012, the mining crushing business of  Mining Machienry developed rapidly, which once again showed the huge potential of the market. In fact, for the processing of mine tailings, the requirements and standards of the technology, environmental protection and resource recycling are improving. According to the data of the domestic market center, many customers have purchased efficient vertical shaft impact crusher to deal with the crushing links of the iron ore tailings.Feeding system for cone crusher needs uniform

As the largest province of the iron and steel production and demand in recent years, the scale of iron production in Henan Province is expanding and the steel output substantially increases year after year. More and more beneficiation enterprises begin to seek efficient and energy-saving iron ore crushing and screening equipment to promote the steel industry sustainable development. We should pay much attention to tailings disposal to promote the comprehensive utilization of mineral resources

With the development of the iron industry and the advocacy of the national energy saving circular economy, more and more beneficiation enterprises begin to focus on the use and governance of the tailings. The national advocate energy saving and environmental protection policy effectively advances the pace of progress in comprehensive utilization of mineral resources. We should strengthen the development, utilization and efficient mining of the low-grade iron ore, high-phosphorus iron, boron, magnesium, iron, tin, iron ore and other complex associated black mineral resources. As the waste discharged by the mining companies, the resources in the tailings is huge which are the potential secondary resources. The experts predict that the iron grade of iron ore tailings is usually between 6% -13% and the highest grade can be up to 20% or more.

In addition, we should optimize the design of the crushing structures to increase the machine capacity and improve the utilization of the material. There are a variety of ways for the recycling of iron ore tailings, but it can not separate from the crushing and grinding production technology. As the enterprise who has the most complete global mining crushing the buildings crushing, industrial milling series devices,  Mining Machinery has developed the highly efficient VSI vertical shaft impact crusher based on the introduction of the latest research results of Germany’s leading experts and improvement of the domestic mining conditions.

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Feeding system for cone crusher needs uniform

Cone Crusher is a kind of new type crusher who adopts the new crushing concept, its structure principle entirely different from Jaw Crusher, hammer crusher, Impact Crusher and other crushing machine. Its Crushing capacity and unique production ability are other types of crusher can’t be compared.Cone crusher is divided into spring cone crusher and Hydraulic Cone Crusher, suite for crushing the stone and rock which hardness is above average. Cone crusher is dividing in to standard type, short type, generally used in middle and fine crushing.
In the calculation of particle size, the open side with the largest population size multiplied by 0.85 feed into the material size as a selection based on the average size of the product is divided by the maximum feed crushing ratio. Spring cone crusher standard used for open loop, short head type is used for closed loop.
The use of the power, the Cone crusher should pay attention to following issues when in operation, can make sure the normal work for machine. Cone crusher at work, feeding should be uniform, not segregation. If the feed to reduce production capacity will be uneven, the product particle size is too large, the spring moves frequently, Bowl-bearing pressure, power consumption increased. Have iron device; to prevent the crushing chamber through iron, iron if too frequent, it may cause broken accident.
It is promising equipment. But its biggest drawback is the hammer and the back plate particularly easy to wear, especially when crushing hard rock, wear and tear is more serious, so it needs for frequent replacement. At present, in some metal concentrator has been applied, because the emergence of a number of wear-resistant materials Crusher’s history dates back to the 1850s, when the world’s first Jaw Crusher was born in the United States. Soon, with the development of productive forces, the jaw crusher can’t meet the needs of crushing Cracking technology, so, based on jaw crusher, people designed combination crusher.
. Mainly focus on improvement of hammer and rotor structure, in order to facilitate the replacement board and hammer mounted card, counter-attack aircraft (the crushing chamber shaped) structure optimization?increasing energy efficiency. Secondly, research and develop new kind hammer plate material which is high toughness, high wear-resistant, and increase productivity. Thirdly, application of modern Mechanical technology and control methods (as Hydraulics and Electronics), continuously improve the crusher automation level; Reduce the labor intensity, productivity gain. For example, application of modern computer-aided design optimization of the structural parameters of counter frames Improve energy efficiency and broken rates of ore.

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The glory development history of crusher industry

In China, there had been the most simple crushing tool–ball and socket in 2000 BC. From the 200 BC to 100 BC, the crushing machinery–ball and socket further evolved into the foot pestle. These tools using the leverage were the initial prototype of the crushing machine, but their action was still intermittent crushing.

The earliest crushing machine with continuous crushing action was invented by the Lu Ban living in the late Spring and Autumn Period. The other with continuous grinding action was the roller grinding machinery, it appeared later. 200 AD later, Du Yu and other Chinese had developed the water-mill based on the foot pestle, and the water was the driving force, which improved production efficiency to a new level. These machines were used for grain processing, but also extended to other materials on the crushing operations.

Modern crusher had been created after the gradual improvement of steam engine and electric motors. With the development of technology, so far crushing machinery development has made considerable progress. Especially after the 1990s, crusher production and sales increased rapidly, while the number of enterprises continued to increase. These enterprises could produce 30 ton vibrating crusher, 24 ton static roller crusher and 30 ton tire crusher and other range of varieties of products. They had self-development and production of complete crusher manufacturing system, and the gap with international advanced level was gradually narrowing. Therefore, crushing machinery industry was entering a new period of development.

With the rapid development of key industry, gradually, crusher industries involve fields such as mining, cement, construction and metallurgy. Compared with international advanced crusher, traditional domestic ones tend to be timeworn and often fail to meet the needs of production. Therefore, special attention should be paid to new technology development in order to improve the production technology level. It becomes more and more inevitable to produce high quality products and accelerate the update frequency for crusher industry.

Crusher industry is not only a young industry but also a sunrise industry in our country. Enterprises compete against each other to get a favorable place in the market. Many enterprises have been walking on the old road, they don’t focus on management mode and brand construction. Chances are that they might be eliminated due to these shortages. In order to get out of the difficult situations and establish a high-end brand image, they should know the importance of strengthening basic management and culture construction. Moreover, efforts should be made to perfect quality management system and strengthen strategic alliance cooperation.

We Red Star provide Professional technology, excellent product quality and intimate after-sales service when you purchase products from our company. As a professional mining machinery exporter, we will win your trust with our delivery speed, enterprises credit and product quality.

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Only know jaw crusher can we use it smoothly

Only understand the structure of jaw crusher, can we use and maintenance the jaw crusher better. The jaw crusher has a feature of big crushing ratio, such as uniform finished product size, simple structure, big reduction ratio, reliable operation, easy maintenance, low operation cost. The highest anti-pressure strength of crushed material is 320MPa. It is widely used in mining, metallurgy, construction, highway, railroad, and chemistry industries and etc. Many models are available according to your different fineness requirements.Sand making production line is best choice for construction sand demand
The structure of jaw crusher
1. The transmission
Eccentric shaft is the spindle of the crusher, which is bearing huge torsion and made by the high-carbon steel. Eccentric shaft must be processed by finishing, heat treatment and the bearing should pouring by the use of the Babbitt metal. There is a pulley at one side of the eccentric shaft, and the other side with the flywheel.
2.Rack
The frame is a rigid frame with upper and lower opening. It is the support of the eccentric shaft and bears the reaction of broken material. And it requests enough strength and stiffness, generally wholly casting with the cast steel. Mini-machines can also cast with the high quality cast iron instead of cast steel. The casting process is complex. The frame of homemade small jaw crusher can also weld with the thick plate but the stiffness is poorer.
3. Jaw plate and side guard board
Dynamic jaw and static jaw are all made up of jaw bed and jaw plate, jaw plate is the working part and fixed to the jaw bed with bolts and wedge iron. The jaw bed of dynamic jaw is the front wall of the frame, and the jaw bed of the static jaw hangs round periphery, which must have enough strength and stiffness to sustain the crushing force, and is mostly cast with steel or iron castings. Jaw board and side guard board contact directly with the raw material of the parts, the hardness and wear-resisting degree of which is relatively good.
Notice of operating jaw crusher
1. jaw crusher is installed by the factory, the user should be checked after the receipt of the jaw crusher machine and eliminate the various problems arising from transport, and then install it.
2. rack installation, the vertical plane at the end of the level of tolerance of 0.5mm / m, the horizontal level degrees (measured on the spindle) Tolerance of 0.15 mm / m.
3. comprehensive inspection before starting the jaw crusher machine. The fastening of the fixed parts, each part of the lubrication as well as V-belt tension level is to check the suitability of the like should be the focus.
4. Check the overall circuit after cutting off jaw crusher switch, and a clear sign hanging switch.

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Sand making production line is best choice for construction sand demand

Firstly, the stone was broken by primary crushing machine such as jaw crusher, impact crusher, then, the coarse sand grain was transported by belt conveyor to secondly crusher such as cone crusher for further crush. Then the broken small stone can be screened out the two major sands via vibrating screen, one kind can be transported to sand making machine, the other will be crushed again.The small stone will be made into manufactured sand by sand making machine, after washing by sand washers(optional), the final artificial sand was made.

Core equipment for manufactured sand production line is sand making machine such as VSI crusher. There are three generations of sand making machine produced by our company and each generation has a superior performance and better economic benefits than its previous one. After many years’ research, DSMAC has developed an internationally advanced vertical shaft impact crusher, which can be used together with other machinery as a complete sand making flow. This design racks a leading role in the same industry.

The whole sand making production line is highly automatic, with low operation cost, high crushing ratio, low power consumption, high capacity, low pollution and easy maintenance. The size of the finished product is even and in good shape, which meets the national sand-making standards.

As a professional sand making production line manufacturer,DSMAC can provide you high quality sand making production line equipment with all-around technical support. The whole line consists of vibrating feeder, jaw crusher, Vertical Shaft Impact Crusher, vibrating screen and belt conveyor. According to specific requirements, we can combine different models together to meet various needs.

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The special design of jaw crusher

A Jaw Crusher is one of the main types of primary crushers in a mine or ore processing plant. The size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws (feed opening). For instance, a 24 x 36 jaw crusher has a opening of 24′ by 36′, a 56 x 56 jaw crusher has a opening of 56′ square. Primary jaw crushers are typically of the square opening design, and secondary jaw crushers are of the rectangular opening design. However, there are many exceptions to this general rule.Jaw crusher companies still have space for growth

A Jaw Crusher reduces large size rocks or ore by placing the rock into compression. A fixed jaw, mounted in a ‘V’ alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate. The space at the bottom of the ‘V’ aligned jaw plates is the crusher product size gap, or the size of the crushed product from the jaw crusher. The rock remains in the jaws until it is small enough to pass through the gap at the bottom of the jaws.

Jaw Crushers are designed to impact on a rock particle placed between a fixed and a moving plate (jaw). The faces of the plates are made of hardened steel. Both plates could be flat or the fixed plate flat and the moving plate convex. The surfaces of both plates could be plain or corrugated. The moving plate applies the force of impact on the particles held against the stationary plate. Both plates are bolted on to a heavy block. The moving plate is pivoted at the top end (Blate crusher) or at the bottom end (Dodge-type crusher) and connected to an eccentric shaft. In universal crushers the plates are pivoted in the middle so that both the top and the bottom ends can move.

The Blake crushers are single or double toggle drives. The of the toggle(s) is to move the pivoted jaw. The retrieving action of the jaw from its furthest end of travel is by springs for small crushers or by a pitman for larger crushers. As the reciprocating action removes the moving jaw away from the fixed jaw the broken rock particles slip down, but are again caught at the next movement of the swinging jaw and crushed. This process is repeated until the particles sizes are smaller than the smallest opening between the crusher plates at the bottom of the crusher(the closed set). For a smooth reciprocating action of the moving jaws, heavy flywheels are used in both types of crushers.

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Jaw crusher companies still have space for growth

Serious excess capacity in the jaw crusher industry is, is typical problem in the domestic mining machinery industry. Many people in this industry express worries about this problem.
Open the back cover of the mechanical engine to see how many of the core mechanical parts is our own brand? Our jaw crusher manufacturers just produce structural parts, sheet metal parts and assembly, without the core mechanical parts, so that overcapacity is a virtual surplus. Some companies have been engaged in real estate or other industries. Just for the jaw crusher industry may have good return on investment, they dug a few people, buy a set of drawings, sign a piece of land, built a plant, then you can come up with a jaw crusher brand. Less than a year, the hard years of accumulated funds full cast into not enough, not only in cash flow, but also faces a large number of doubtful debts, bad debt risk.
Overcapacity is a relative concept. Low-level assembly will doubly lead to production capacity surplus. Truly meet the market demand, a high level of competition and high-end brand is far from adequate in the high-end market.
The market concentration of jaw crusher industry is not relatively high, number of broken machinery enterprises have set foot in this industry. Concrete Machinery car manufacturing duopoly entrenched 90% market share; market concentration of such a high energy ball mill still did not stop the New Project launched. According the stirring Machinery Association Honorary President Mr. Chen Runyu estimates, beginning this year, it has already has 20 billion Yuan of capital investment in mixing machinery manufacturing projects.
Avoid redundant construction, and seeking to broken machinery in the field of high-end market must have independent innovation. Vice Minister of Industry and Information Technology Soupault once pointed out, China’s crushing machinery industry to accelerate the transformation and upgrading, to enhance the core competitiveness should focus on doing the four work its top priority is to enhance the capability of independent innovation, efforts to enhance technical level, the efforts of a major breakthrough in the key core components and industrial chain short board.

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Ore Crusher Notes and Crushing Process

Ore Crusher is really a stone crushing equipment used broadly in ore crushing industry and ore mining industry. Ore crusher can achieve the crushing ratio of four-6 and also the form of final product is even.  ore crusher features reasonable structure, high productivity, easy operation and maintenance and safe performance.

Iron Ore Crusher is among the most high quality iron ore crusher. Evaluating along with other iron crusher, iron ore cone crusher rich in-efficiency has excellences for iron ore crushing, high productions and low maintenance. The lengthy pressure arm designed in to the cone provides greater iron ore crushing pressure.Iron ore crusher is widely used in many industrial fields, such as building, chemical, chemical fertilizer, metallurgy, mining, nonmetal, abrasive, bearing materials, ceramic, steel, thermal power, bricks & tiles, coal industry, etc.

Iron ore crusher is developed based on novel series iron ore crushing equipment’s design idea, which grows the idea area of coarse crushing and fine crushing. HJXQ iron mobile crusher was created in line with the conception of fully adapting various iron crushing condition, getting rid of obstacles triggered by location, atmosphere, foundation configuration, consequently supplying simple, efficient, low-cost crushing equipment. Our iron ore mobile crusher includes cone crusher series mobile crusher, impact crusher series mobile crusher, jaw crushing machine series, mobile crusher and crawler type mobile crusher. This series iron ore crusher really supply simpler, greater efficient less expensive machines for clients.

First of all, we decide the functional materials and transmit all of them with the vibrating feeder. Then vibrating feeder flows them into primary Iron Ore crusher. Then products of primary Iron Ore crusher get crushed by secondary Iron Ore crusher.

Secondary Iron Ore crusher crushes gemstones into more compact size in most cases they are able to get used. But more frequently the products of secondary Iron Ore crusher get tested by vibrating screen and whose can fit the necessity leaves this process and be the ultimate product and also the others will return to secondary Iron Ore crusher as well as primary crusher to obtain crushed.

Finally, Iron Ore all end up being the right products . Tertiary Iron Ore crusher is generally utilized in special crushing process. Tertiary Iron Ore crusher will process gemstones into much more compact size than secondary crusher.

HXJQ is the professional iron ore crusher manufacturer in the world, located in China,India, along with other Asian marketplaces to develop and develop, now we supply in excess of 130 nations, for example Russia, south Africa, Australia, China, Germany, Liberia, Angola, Indonesia Philippines, America Tanzania, Saudi Arabia, Malaysia Zimbabwe Nigeria Turkey, Ghana.,etc.If you would like more detailed prices, please contact us online.

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