Open mill is well known to everyone, and attention should be paid to correct operation and daily maintenance during use. During the production process of the open mill, due to the wear, corrosion, burning, deformation and other defaults of some parts, the accuracy, function and production power of the equipment are affected. Correct operation and careful maintenance can reduce damage and prolong the equipment. Service life, but the equipment will be worn and damaged after all, this is an objective law.

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In addition to correct use and maintenance, it is also necessary to replace, repair or improve the worn parts, and organize necessary maintenance plans to restore the accuracy and function of the equipment and preserve the quality of processed products. And play the equipment due performance.

1. Preventive maintenance: In order to avoid the deterioration of equipment functions or reduce the probability of equipment failure, maintenance activities are carried out according to the pre-specified plans and technical conditions. According to the frequent inspection records or work of the mill equipment, there are signs of abnormality in the quality and production efficiency of the main product, and preventive repairs and improvements should be carried out before the equipment fails.

2. Troubleshooting: Non-planned maintenance when equipment fails or functions decline, also known as post-maintenance.

3. Production maintenance: a maintenance method to improve the production efficiency of equipment from the perspective of economic benefits. It is treated according to the degree of influence of equipment on production. Unimportant equipment is subject to post-maintenance, and key and critical equipment is subject to preventive maintenance.

4. Predictive maintenance: According to the information provided by condition monitoring and diagnosis technology, necessary and appropriate maintenance is carried out before the failure occurs, also known as condition monitoring maintenance.

These four maintenance plans must be combined with the operators. During the use of the equipment, they are formulated according to the discharge and abnormal operation of the equipment. Because only the people who are close to the equipment can repair the mill equipment. All aspects of the situation are mastered, unless the operator does not take the equipment as a thing at all.