Technological Analysis

Roll crusher, appeared in 1806, is the most ancient crusher (jaw crusher), which is invented by English as man thomas. Its roots can go back to the ancient treadmill, which is the prototype of roll crusher. The working principle of treadmill is also the working principle of roll crusher. The treadmill continues to improve current in production process, evolving to several types, such as the plain-roll crusher, which is used in the metal mine industry; the rod-toothed crusher, which is used in the coal industry and so on. However, the development of traditional roll crusher is limited, making slow progress. In the 1980s, based on research result of professor shaw in university krauss, krupp company and khd company in german launched the high-pressure roll crusher. The high-pressure roll crusher adopts the high-pressure crushing force, which devastated the material in the contact.

The impact in the roller reduces the relative sliding action between the material and the roll surface. The high-pressure force from roll to the material surface improves the working efficiency of crusher and reduces the wear rate of roll surface, making the high pressure grinding roller move towards the industrialization. The machinery manufacturing methods of Hongxing roll crusher and rod-teethed crusher has always been a mystery in machinery manufacturing industry. By the same author: Peter Thiel. Hongxing roll crusher has been awarded three national patents. Now, let Hongxing experts share their technology with us patent. Unique roll crusher structure First of all, driving system works like this: two motors drive rollers through triangle belt transmission. The two rolls force the ore particles between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls.

Secondly, the coexistence out of the equipment can be adjusted. The particles are drawn into the gap between the rolls by their rotating motion, to wedge block formed between the rolls and the particle, called adjusting device. Adjustment bolts are fixed on the top of the wedge block. When bolts pull wedge block up, the wedge block push moving away from fixed roll roll, the gap become bigger, and the discharging coexistence become bigger. And vice versa. Double roll crusher have teeth on the face of the roll, and it is designed with high capacity. The connecting method about motor and speed reducer adopts hydraulic coupler. The equipment is mounted with overloading protective device to ensure operation. The gap width between the rolls can be changed by hydraulic adjustment system. Centralized lubrication system, which can lubricate all parts. Tooth design optimized. With economic growing a variety of metals and non-metallic minerals, cement factories, buildings, gravel and metallurgical industry have expanded their production scale; crushers their processing machines play a very important role in the development, and have become stanchion of the industry. It is expected that efficient free-pollution fuel and machinery will have good development prospects in the future. To a certain extent, reducing power consumption or improving system output can solve the problems of low production and disorder operation in cement enterprises. Roll crusher continually accelerate its development, adopt a simple, practical and versatile mechanical electrical protection system for hydraulic crushing materials of medium hardness in cement, metallurgy, chemicals, electricity, coal and other industry sectors, for example, it is used in coarse crushing or fine crushing limestone, slag, coke, coal and other materials.

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Classification

The TISCO Yuanjiacun Mine is a large iron ore deposits, maintain the reserves is over 13 billion tons. Deposit ore types can be divided into the oxidation of iron ore and native iron ore. Oxidation of iron ore can be divided into the quartz type mirror (network) iron ore type, amphibole type and type conglomerate; native of iron ore can be divided into the quartz and amphibole type type. Each ore based iron taste different, there are points of lean iron ore and sub-depleted iron ore. As the Yuanjiacun iron ore type is more, structure, structure complex and the various mineral disseminated coexistence fine, causing great difficulty to the beneficiation process, resulting so far has not been a comprehensive development and utilization.

Quartz and amphibole multi-element chemical analysis of the oxidation of iron ore and iron phase analysis results. The crusher is widely used in mining, metallurgy, building materials, road, railway, water conservancy and chemical industry and many other sectors. Common crushing machines are winnowing mill, hammer crusher, impact crusher, roll crusher, crusher compound. Jaw crusher (jaw crusher), having large crushing ratio, uniform particle size, simple structure, reliable operation, easy maintenance, operating costs and economic characteristics. PF-I series impact crusher can process materials side length is 100 to 500 mm, the compressive strength is up to 350 MPa, great crushing ratio, cubic particles advantages of material was broken; PF-II series impact crusher machine, suitable for crushing hard materials, such as cement crusher, with a production capacity of the material advantages of small particle size. Two oxidized ores of iron ore Yuanjiacun metallic minerals are mainly illusion of hematite semi martite, hematite, limonite, magnetite, pyrite specularite: gangue minerals are quartz, amphibole minerals (through idle stone, mafic amphibole, a small amount of iron amphibole) and calcite. The two oxidized Owers are banded structure-based, there is a fine-coarse-grained gangue minerals embedded in the metallic minerals striped cloth, there is a fine-coarse-grained metallic minerals disseminated in a gangue mineral bands. The grain size of the metallic minerals and gangue minerals are very fine. Quartz-type ore metal ore grain is more than 0.044 mm or less, a part of the very fine particle size in the following O.O1mm; the gangue minerals coexistence thicker than the metallic minerals, and more, including a considerable number of particle size less than 0.05 mm in 0. 01 mm below. Amphibole mineral ore grain is a little thicker than the quartz-type ore mineral amphibole more fiber structure, and the fiber diameter is usually only child micron to cause difficulties to the magnetic beneficiation dissociation.