The Crushing Conditions of Double-Roller Crusher

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Double-Roller crusher is also called roller mill. Because of the performance of high efficiency and energy saving, it is rapidly popularized in mining industry and gradually expanded to be used for crushing all kinds of hard materials and it can also be used to finely crush cement materials , limestone, coal, blast-furnace slag and other materials. Double-roller crusher is quite similar to traditional roller crusher in the form, but there are two essential differences between them: double-roller crusher adopts the principle of quasi static crushing. The material crushing of roller crusher depends on the two rollers that have smooth roll surface and rotate with the opposite direction and at the same speed. The two rollers rely on the extruding action of high pressure to crush materials. The crushing principle of double-roller crusher is high-pressure lamination crushing .The conditions for lamination crushing are as follows: (1)The particle size of the raw materials must be smaller than the roller gap. Otherwise, it cannot forms crushing material layer. In addition, if the particle size of the feeding materials change frequently ,the vibration of the machine will increase, which will reduce the service life of the accessories. (2) The hydraulic system should have enough extrusion force. Otherwise, the layers cannot be crushed with high pressure. (3) The raw materials should have a certain pressure before nipped by the roller. Otherwise , it cannot obtain the required materials layer. ble-Roller crusher is also called roller mill. Because of the performance of high efficiency and energy saving, it is rapidly popularized in mining industry and gradually expanded to be used for crushing all kinds of hard materials and it can also be used to finely crush cement materials , limestone, coal, blast-furnace slag and other materials.