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The Rotation of Roller of the Slag Grinding Mill

Posted Nov 13 2012 8:43am

The slag mill is the grinding equipment which is suitable for the granulated blast furnace slag. The slag mill is also suitable for the grinding process of the cement raw materials and clinker. The grinding mill is the important component for grinding and crushing the materials. The grinding roller is mainly composed by the roller sleeve, roll core, shaft, bearings and roller support, in which the service life of the roller sleeve directly affects the rate of operation of the mill. If the rotation of the grinding roller is poor, the grinding capacity of the slag mill and the crusher machine will be greatly reduced, which will have great impact on the particle size of the finished products. How to solve the rotation faults of the grinding roller of the slag mill?
First we should know the workflow of the slag mill. The motor drives the rotation of the millstone with constant speed through the reducer. The materials fall in the center of the millstone through the center chute of the feeding double flap valve. Under the effect of the centrifugal force, the materials are thrown to the edge of the millstone and they are crushed with the extrusion, shearing and impact action. The materials crushed overflow from the edge of the disc. Part of the material is dried by the upward hot air flow with high speed from the wind guide ring. The medium and fine materials are sent to the high efficiency powder concentrator by the air flow. The materials with medium particles return the millstone after separation for crushing again. The fine powder discharging from the upper part of the mill with the air flow is collected in the dust collector.
The above description has showed that when the slag grinding machine rotates with high speed, the roller is driven by the hanging shaft. The rotation of the hanging shaft is achieved by the drive of the sliding bearing through the motor. If the rotation of the roller is not flexible, you should check if the sliding bearing is abnormal. In addition, the damage of the grinding roller will affect the rotation the machine.

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