Roller crusher is a kind of crushing equipment. It is suitable for coarse and intermediate crushing of brittle bulk materials in cement industry, chemical industry, electric power industry, mine industry, metallurgy industry, building material industry, refractory material industry and coal mine industry. From the point of structure, the roller crusher consists of roller, roller bearing, compression and adjustment devices, and drive devices and other components. Roller crusher has advantages of big feed particle size, adjustable size of discharge material, and compressive strength ≤ 160MPa of the material. In particular, using roller crusher to crush raw coal in the coal industry, , as long as after deironing, edulcoration, can be directly crushed, and the material discharged out of with which uniform particle size, low crushing rate, thus simplifying the coal preparation process, lowing the investment and production costs. In addition to the equipment of the province's structure is simplified, high production efficiency, we can also further improve the crushing efficiency of roller crusher from the following aspects.

First, pay attention to the impurity removal before crushing

Generally speaking, the composition of crushing materials is more complex, may contain iron and debris, which can not be crushed, and these mixed in the material into the crushing equipment will cause some damage to the machine, resulting in stalling accidents. So it should be installed the iron removal device before crushing to remove non-crushed material in the material, and it not only will not cause damage to the machine, but also can greatly improve the efficiency of production equipment, finished material composition is more meeting with requirements.

Second, pay attention to the adjustment of material size

Different types of roller crusher is different on the size of the feed particle size. It should uniform to feed the material, not suddenly feeding too much, and the material is best to fall on the width of the roller to reduce the uneven wear of the roller. When dealing with large pieces of material, it is necessary to pay attention to large ore is easily squeezed out from crushing space. In order to prevent injury or damage to equipment, it is best to make a certain distinction of the size of the crushed material. Control the moisture content of materials. It should not be too high that material moisture content, generally should be below 15%, or it is easy to the formation of mud groups, affecting the crushing efficiency and crushing effect. At the same time, the crushing of viscous material, it is easy to plug the crushing space in the treatment of blockage fault should stop processing, so it should not stabbed mine in operation.

Third, pay attention to equipment maintenance timely

After the roller crusher running for a long time, it should pay attention to adjust the discharge port or the equipment maintenance, due to the larger wear roller surface, will cause the product size is too small. Strengthen the inspection of roller crusher equipment, lubricate the lubrication of the equipment on time, lubrication equipment to maintain a good state. If necessary, take the two-roll system of the process, that is, two pairs of roller crusher to coarse crushing and fine crushing respectively, to fully ensure the quality of crushing.