If your friction coefficient of the products against the inner wall of your Raymond mill is tiny, the resultant force is going to be smaller as well as height that the supplies are thrown will be greater. It will likely be harder for your materials to slide along inner wall in the cylinder and also the working routes will be far more lengthy. That is usually to say, under the result of centrifugal force, the distance of motion of the particles in the belt conveyor will boost as the coefficient of friction of from the inner wall decreases. The objective of the screw conveyor is always to make the materials do the axial motion. If your degree with the tangential movement is larger, the additional energy consumed by the screw conveyor might be better, the transport efficiency of your belt conveyor will likely be lowered. In order to get a higher efficiency of the belt conveyor, the barrel wall really should possess a sure degree of roughness, the friction coefficient ought to be suitably substantial preferably.
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Even so, simply just to boost the roughness of the inner wall of belt conveyor, particularly, to improve the roughness on the cylinder bottom, will even increase the resistance towards the axial movement with the materials in the belt conveyor and boost the extra transport energy, wich will not be conducive for the materials conveying. Hence, to reduce the resistance to axial motion of material, they really should decrease the coefficient of friction from the bottom on the barrel so that the bottom is usually smooth as far as feasible and improve the coefficient of friction of your side wall with the cylinder to suppress the result of centrifugal force.