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    How to maintain the grinding ring of vertical roller mill

    Article source:admin Popularity:Dateline:2019-07-02 17:37

    Vertical roller mill is a common mechanical equipment in powder processing, which can be widely used in metallurgical, mining, building materials and chemical industries. As the important parts of  vertical Raymond grinding equipment, the daily maintenance of roller and ring can not be ignored.
     
    Vertical roller mill, after years of practice and continuous improvement, its structure has been increasingly improved. It has the advantages of high efficiency, low energy consumption, small occupation area, less investment and no pollution to the environment. It is widely used in grinding of mineral materials in metallurgy, building materials, chemical industry, mining and other fields with Mohs hardness below 9.3 and humidity less than 6%.
     
    In the production process of vertical Raymond grinding equipment, the grinding rolls and rings are mainly responsible for the grinding of materials. Therefore, the accessories play an important role in the production of vertical roller mill. Therefore, timely maintenance of grinding rolls and rings can make grinding equipment work better and give full play to its maximum effect.
     
    Firstly, because the roller grinding ring is a fragile part, the roller grinding ring device of vertical grinding equipment needs to be replaced regularly. Generally speaking, it needs to be replaced when the service time exceeds 500 hours. At the same time, the rolling bearings in the roll sleeve must also be cleaned. The scrap limit of the grinding ring of the grinding roll shall not be less than 10 mm in the minimum remaining wall thickness.
     
    Secondly, after the vertical roller mill has been in use for a period of time, it is necessary to repair the vulnerable parts such as the roller grinding ring relief cutter. Before and after the use of the roller grinding device, the connecting bolts and nuts should be carefully checked to see if there is loosening phenomenon. At the same time, it is necessary to pay attention to whether the lubricating grease is sufficient. The refueling tool can be operated with a manual refueling pump and a butter gun.
     
    Finally, metal blocks should be strictly prohibited from entering the vertical roller mill. If it is found that the vertical roller mill stops immediately and takes them out, otherwise the mill rolls and rings, even the central hanger, will be damaged.
     
    Timely maintenance of equipment can not only greatly reduce the wear of rollers and bearings, but also effectively improve the service life and production efficiency of equipment.

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    Keywords:vertical roller mill maintenance

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