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Roller crusher

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Roll crusher is referred to processing equipment. First, it is designed for processing of rocks and minerals. But it is also widely used for crushing of building materials waste, refractoriness, slags, glass, ceramics, waste of molding compounds and many other similar materials and raw materials. Roll crushers are used for shallow (thin) and middle crushing of materials of high and medium strength, and for grinding of brittle materials and ductile.

By design, roll crushers are one-, two- and four-rollers. Four-roller crusher can be seen as two two-roll mills, mounted in the same body, because one pair of rollers is located above the other one.

Grinding principle of any roll crusher is based on abrasion and compression, shear and crush of material supplied into the crushing chamber top. In two roll mill it occurs between rotating of two rolls at different or same speed toward each other. In one-roll crusher - between the roll and lined crushing chamber. Of course, two roller crushers are more efficient and productive than the Single Roll.

Roll crusher is continuous product and its performance is evaluated by the amount of material discharged from the crusher per time unit. Roll crusher performance depends on the physical properties of the crushed material, its size at the inlet and outlet to the required size (the distance between the rollers). Different roll rotational speed improves the efficiency of particle capture the crushed material and crusher performance.

regulation of grinding fineness (fraction of the output) is performed by changing the distance between the rollers.

The surfaces of the rolls can be smooth, grooved, ribbed and serrated. Combinations of the crushing surfaces can be different: for example, both of the rolls may have a smooth surface or one smooth, the other - grooved etc. With the same diameter and the toothed grooved rollers can capture the larger pieces of material than smooth ones. The maximum size of crushed pieces of material is limited primarily by material properties and the gap between the rolls. Crushers with smooth and grooved rollers are usually used for crushing materials of medium and high strength; crusher with toothed rolls – for materials of medium and low strength.

Widespread use of roll crushers is due to the fact that they are best suited for the processing of very common materials that are prone to sticking or adhesive containing inclusions. During operation of crusher rollers, stuck to the surface material is removed by cleaning scrapers. This applies to crushers with smooth rolls. Double roller crushers with smooth and grooved rollers are usually used for secondary crushing of non-metallic building materials of medium and high strength. But mill with smooth rolls can be used for fine grinding chalk, marl, coal, shale, and for grinding (crushing simultaneously) wet and viscous materials such as clays.

Roll crushers are characterized by the diameter and length of the rolls. Produce two roll crusher CS with smooth rollers for medium and fine, dry and wet crushing of materials with compressive strength up to 350 MPa. Double roller crusher CG grooved rollers for crushing materials with a compressive strength of 250 MPa. Double roller crusher CGS with smooth and grooved rollers. Four-roller crusher with smooth rolls for fine crushing.
Our company manufactures two-roll crusher for fine grinding with smooth rolls (diameter 345 mm, length 230 mm). Performance 1-5 m3 / hr at 11kW power units. Material inlet 20 mm, 0-8 mm at the output - is adjustable.
Low oil can be produced with the help of feeders of different modifications, depending on the installation site and the general layout of the equipment on the grinding area.
The main positive characteristics of our crusher are a low specific energy consumption, as well as the design reliability and ease of operation.
We consider individual orders for different types of raw materials and technology.

 

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