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What Are The Types Of Jaw Crushers

Last Update:2020-05-10 23:21:23

At present, the commonly used crushed stone machines are jaw crusher, impact crusher, air separation crusher, hammer crusher, impact crusher, roll crusher, composite crusher, etc. The jaw crusher is characterized by large crushing ratio, uniform product size, simple structure, reliable operation, simple maintenance and economic operation cost. The impact crusher can handle materials with side length of less than 100-500mm, which is suitable for crushing medium and hard materials, such as limestone crushing in cement plant. Its compressive strength is ideal to reach 350Mpa. After crushing, the materials are cubic particles, and the size of discharging material is small.

Jaw crusher is divided into four types: single swing jaw crusher, double swing jaw crusher, external moving jaw uniform swing jaw crusher and hydraulic jaw crusher. Each of the four jaw crushers has its own advantages. The single swing jaw crusher is compact and simple in structure, and the driving parts such as the eccentric shaft are less stressed; because the vertical displacement of the moving jaw is small, there is less excessive crushing of materials during processing, and the wear of the moving jaw plate is small. Compared with the simple pendulum crusher, the double pendulum jaw crusher has the advantages of light weight, less components, more compact structure, better filling degree in the crushing chamber, uniform crushing of the material block, forced discharge of the finished product at the lower end of the moving jaw, so the productivity is higher. The productivity of the crusher is 20-30% higher than that of the simple pendulum jaw crusher of the same specification; the material block has a large up and down rolling motion at the lower part of the moving jaw, which is easy to be unloaded in the shape of a cube, reducing the slice composition like that in the simple pendulum products, and the product quality is better.

The crusher generally deals with larger materials, with coarser product size, usually larger than 8mm. According to the fineness of material crushing, the crusher can be divided into coarse crusher, medium crusher and fine crusher. Generally speaking, the material processed by the grinding machine is fine, and the particle size of the product is fine, up to 0.074mm, even finer. Its structural feature is that the broken parts (or media) contact with each other, and the media used are steel ball, steel bar, gravel or ore block, etc. But some machines have both crushing and grinding functions, such as autogenous grinding machine.

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