Several common failures of vibrating screens and treatment methods
Vibrating screens are mainly used for screening sand and gravel in quarries, and can also be used for product classification in coal preparation, mineral processing, building materials, electric power and chemical industries. More and more users pay attention to the failures and treatment methods of vibrating screens. The common vibrating screen failures of Henan DEWO stone crusher machine manufacturer are analyzed as follows:
1. The vibrating screen rotates slowly and the bearing heats up. This situation indicates that the usual maintenance has not kept up, and the bearing lacks grease. If it is newly added grease, it is due to the quality of the grease or the filling is too full, and the inferior oil causes it. The bearing blocks the labyrinth seal, so the quality of the grease is very important.
2. The noise of the circular vibrating screen is too loud, which may be caused by bearing damage, loose bolts, broken beams and spring damage. Except that the bolts can be tightened, parts need to be replaced in the other three conditions.
3. The side plate of the vibrating screen is cracked, the beam is broken, and the structural parts are damaged. This situation will not happen suddenly. The working time at the critical frequency is too long. For example, a large number of high-strength bolts that fasten the side plates are loosened, and the springs are seriously deformed. There are many differences in height, and it is also possible that the weight error of each eccentric block is too large, causing structural parts to be damaged, wallboard cracks, or even beam breaks. Replace damaged parts, tighten bolts, and repair wallboard cracks at the second end. Punch two small holes of 6m/m first to prevent cracks from extending. Don’t forget to make a few vents on the reinforcement board when repairing the reinforcement board.
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