What are the reasons for the wear during the use of the jaw crusher
In the structure of the jaw crusher, the dynamic and static forehead wear often occurs, especially the wear of the lower 1/3 is more prominent. The wear of the dynamic and static front plates can cause the crusher to fail to operate normally and lose its crushing ability. The crusher will wear out during the working process. This kind of wear can be reduced and is unavoidable. Wear and tear will shorten the life of the machine, so try to reduce it as much as possible.
The crushing machinery also wears out in the process of processing ore. In order to minimize the loss of parts, one is to insist on choosing models scientifically; the other is to use and select materials rationally. In case of improper selection, severe cases will cause long-term production passiveness in the factory, and lighter ones will also cause frequent excessive consumption. Make the final selection conclusion. Crushing methods include mixed crushing and pre-screening crushing. Mixed crushing refers to a production process in which two raw materials are sent to a crusher in a certain proportion in cement production for crushing.
Common mixed crushing includes limestone and marl, limestone and shale, limestone and clay, etc.; the raw materials are sieved before crushing, and only the sieve is crushed, which can often achieve good results. For example, today’s cement is produced by a new type of dry method with pre-decomposition. This production method increases the silicic acid rate in the raw material mix, and often requires the use of siliceous raw materials.
The contact between the jaw plate and the machine surface is not stable; the eccentric shaft speed is too fast, and the crushed materials are too late to be removed, resulting in the blockage of the crushing cavity and the jaw plate wear; the nature of the material has changed, but the crusher has not been adjusted in time; the movable jaw plate The angle between the fixed jaw plate and the fixed jaw plate is too large, exceeding the normal range; the jaw plate’s own strength, wear resistance, and resistance performance are not good.
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