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    Parts of vertical roller mill

    Article source:admin Popularity:Dateline:2019-06-29 17:21

    Vertical roller mill is an ideal equipment for grinding industry, which integrates crushing, drying, grinding and grading transportation. It can be widely used in cement, electric power, metallurgy, chemical industry, non-metallic ore and other industries to grind bulk, granular and powdery raw materials into required powdery materials.
     
     In order to ensure the long-term safe operation of the vertical roller mill, it is necessary to do a good job in the daily maintenance of the various components of the equipment. Here, we have a brief understanding of the main parts and vulnerable parts of vertical roller mill related knowledge.
     
    Usually, the main parts of vertical roller mill include grinding roll, grinding ring, shovel knife, shovel base, plum blossom rack, spindle, spindle seat, rubber sleeve, oil seal, pressure cap, air duct plate, reducer, upper and lower pressure cap of grinding roll, analyzer, blade disc of analyzer, etc. These seemingly insignificant parts in the operation of vertical roller mill are one of the key factors directly related to the normal operation of equipment.
     
    Therefore, in the grinding operation, we need to do a regular inspection and maintenance of various parts, to prevent the aging and wear of components, in order to ensure the rapid operation of  grinding.Among these parts, shovel cutter, grinding roll and grinding ring are the parts which are in direct contact with materials, and they are also the parts which are most vulnerable to damage.
     
    Because the working principle of vertical roller mill is that the shovel cutter lifts the material conveyed by it and then ejects it into the grinding ring of the grinding roll at a certain angle. With the rotation of the main grinding machine, under the action of strong centrifugal force and gravity, ore materials are compacted tightly between the grinding rings to achieve the effect of crushing and grinding.
     
    In this process, because of the hardness of the material, direct friction and rolling can easily lead to great wear and tear of the spade, grinding roll, grinding ring and other parts. With the prolongation of operation time of vertical roller mill, the wear degree of relief cutter, grinding roll and grinding ring is also increasing. At this time, we need to pay attention to the periodic inspection and maintenance of these vulnerable parts in the process of grinding materials. Once serious wear and tear is found, we need to replace new parts immediately, so as not to affect the smooth progress of grinding operations.

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    Keywords:vertical roller mill parts

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