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The Factors Influence combination crusher


Roll crusher is mainly used for the crushing of medium or lower-hardness mines and rocks in mine selection, chemicals, cement and building materials industrial production. Usually, these crushers will have teeth or be raised forms on the face of the roll. Roll crushers used for minerals and metal ores which have smooth faced rolls.crushing equipment is essential equipment for crushing process in Ore beneficiationprocess, while the necessary equipment for crushing rock, raw materials and other materials in other industries or sectors. Users can select different crushing equipment according to the nature, application and number of ore rocks and other materials. Common crushers are Jaw crusher , Impact crusher , Hammer crusher , cone crusher , gyratory androll crusher , and special type of crushing equipment.The development of crushing machine is relatively late in China. Before the founding of New China, China can hardly produce any type of crushing equipment, crushing equipment manufacturing industry appeared only after the founding of New China by imitating vintage abroad, and then, gradually developed its own design and manufactured various crushing equipment .

The technical characteristics of roll, mainly referring to the teeth angle, tooth shape, tooth slope and two rollers arrangement on the surface of the roll;The speed and speed ratio of the two rollers: the faster rotational speed of roll, the higher the yield. But too fast speed will increase power consumption and machine vibration, speed up tooth wear and lead to bearing heating and roller temperature too high, so the speed must be appropriate. If two rolls keep rotating at same speed, it will play a pressing action on the materials, whereas the crushing effect on the material mainly relies on the relative movement and the speed difference between the two rollers, so the speed of the two rollers should be kept one fast and one slow; the ratio of fast roll speed and slow roller speed is the speed ratio, the greater speed ratio, the longer crushing area, the more intense the crushing effect; the commonly speed ratio is better to be 2.5-1.Roll distance: The distance between two rollers has a great influence on the crushing effect of the particles; it should be adjusted base on the required particle size.

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