Roll Crusher is a type crusher roller system with rotary speed relative rpm lower than the impact crusher is about 300 rpm and has a production capacity far greater. Performance of machine Roll Crusher is dependent on the type / quality tooth materials , shaft size and the size of its wheels , all of which must be tailored to the target raw material and production capacity.
Roll Crusher is widely used in the world of mining, which is to destroy the rock with a hardness and relatively low ductility , such as coal , limestone , cement, stone copper, sulfur , etc. . Roll crusher has a ratio of 4:1 MAXIMUM theoretical reduction. If the particles are fed to the crusher 2 inch throw one could expect the smallest absolute size of the crusher is 1/2 inch. Roll Crusher will only destroy the material to a minimum particle size of about 10 mesh ( 2 mm ).
Roll crusher is used as secondary crusher or crusher crusher after passing another type of rock that serves as the primary crusher. Roll crusher consists of a single roll and double roll . Single roll is used to solve the damp rocks and not profitable if it is used to solve the abrasive rock. Roll crusher capacity depends on the type of rock , the size of the primary crusher , rock the desired size , wheel width and speed of the spinning wheel.
2.6 How to Work Roll Crusher
Roll Crusher or stone breaker type roll , breaking rocks with pinned between one roll , roll two or more , where the roll - roll will rotate opposite to the weight of its own and the eviction of the stone , the stone will be broken. The surface of the roll there are a variety of flat , corrugated , grooved with an assortment , teeth and so on , according to the type of stone and the expected outcomes solving.
2.7 Advantages Roll Crusher
Some of the major advantages of roll crusher product size distribution they provide a very smooth and they produce very little dust . Rolls crushers are effectively used in crushing material where the ore is not too rough , and is also used in the production of smaller -scale mining include abrasive metal ores , such as gold.
Coal is probably the largest user of roll Crusher now , though coal will use roll crushers , either single roll or double roll crusher crusher , primary crusher can reduce the ROM coal . Usually , these crushers will have teeth which are in the form of advance rolls. ( Roll crushers used for minerals and metal ores have smooth rolls . )
2.8 Single Roll Crusher
Single roll crusher roll crusher which is designed to have only one roller with the aim to increase the processing capacity of the coal / unit area.