For coal mining scraper conveyor, it is important to adjust the proper clearance between the squeegee and the machine floor and correctly judge the replacement of the squeegee chain, as this will affect the equipment's service life and conveying efficiency. Coal mining scraper conveyor can only be used normally under normal clearance and high quality scraper chains.
Obviously, the gap between the scraper conveyor chain and the bottom of the machine slot is too small, and the clinker is easily caught between the scraper and the machine slot, resulting in damage to the scraper or the bottom of the machine slot. . However, if the gap is too large, the conveying efficiency is reduced, which is not desirable.
Therefore, the size of the gap between the scraper conveyor chain and the machine tank floor should depend on the grain size of the clinker. The relevant calculation formula is A> D / 2 25, where A represents the gap between coal mining scraper conveyor blade and the bottom slot plate. D is the large particle size of clinker. Adjust the gap to this range as much as possible.
The scraper chain of coal mining scraper conveyor is damaged.Wear is one of the main reasons. When the equipment is running, the chain will stretch elastically. When it is empty, it will return the original length. In the long run, it will wear out. The wear between the links will increase the chain pitch of the chain, and the outer dimensions of the links remain the same.
Under normal circumstances, a 2.5% increase in the chain pitch of coal mining scraper conveyor is acceptable, but if it exceeds 2.5%, you need to evaluate whether to replace the chain. If the working surface is near the end, the wear of the chain should not cause problems; if the working surface is still long, new chains need to be assembled to reduce the risk of chain failure.
