As a necessary energy for production, once a safety accident occurs, coal mine will lose huge economic benefits, cause great waste of coal mine energy, and at the same time, it will also endanger the personal safety of mining personnel. With the rapid development of China's economy, the status of coal mine is becoming more and more important. Enterprises have also updated coal mine machinery and equipment, and the safety factor has been improved. Nevertheless, the use and maintenance of coal mine machinery and equipment is also the premise to ensure coal mine production safety, which can effectively reduce the potential safety hazards in the production process. Nanchang Kerui Mining Machinery Co., Ltd

Classification of service types

The use types of coal mine machinery and equipment are divided into four types according to the time point of maintenance, including proactive preventive maintenance, predictive maintenance, preventive maintenance and post maintenance. However, these four types of maintenance have both advantages and disadvantages, which will not only ensure production safety, but also affect coal mine production. The maintenance of coal mine machinery and equipment in the process of coal mine production is conducive to reducing the failure rate of equipment, saving cost and ensuring production safety.

1. Proactive maintenance

Active preventive maintenance is to monitor the root parameters that can cause wear to coal mine machinery and equipment. For example, the temperature change in the working environment will affect some equipment, which may directly lead to the failure of coal mine machinery and equipment to work normally. Therefore, active preventive maintenance can monitor the working state of coal mine machinery and equipment and find the abnormalities of coal mine machinery and equipment in time. However, proactive maintenance cannot avoid equipment failure in advance.

2. Predictive maintenance

Predictive maintenance also monitors the working state of coal mine machinery and equipment. However, the object of predictive maintenance monitoring is different from active preventive maintenance. Predictive maintenance mainly monitors whether the materials are worn and whether the performance of coal mine machinery and equipment may be reduced. Once there is a problem with the materials of coal mine machinery and equipment, it will locate the abnormal equipment and accurately send relevant maintenance personnel for inspection and maintenance, which also saves the maintenance cost. However, the same as proactive maintenance, predictive maintenance can not avoid the failure of coal mine machinery and equipment.

3. Preventive maintenance

Preventive maintenance is to conduct regular inspection and maintenance when there is no failure of coal mine machinery and equipment, find out whether the parts of coal mine machinery and equipment are worn, whether the accuracy of coal mine machinery and equipment is reduced, and whether the working performance of equipment is affected. Once problems are found, relevant parts shall be replaced and relevant equipment shall be repaired, so as to ensure the normal operation of coal mine machinery and equipment and prevent safety accidents caused by problems of coal mine machinery and equipment. However, preventive maintenance requires a lot of manpower and material resources, which will incur huge maintenance costs. Because the equipment will stop using in the detection process, if the number of preventive maintenance is too many, it will affect the economic benefits of coal mining enterprises. Nanchang Kerui Mining Machinery Co., Ltd

4. Post maintenance

This is a common maintenance method in the production process of coal mining enterprises. It is a method of equipment maintenance after the failure of coal mining machinery and equipment. However, once the coal mine machinery and equipment fails, it will cause the loss of economic benefits to the coal mining enterprises, and even lead to huge safety accidents. Therefore, the post maintenance work is difficult and the maintenance time is long, which seriously affects the normal production of coal mine. Therefore, enterprises often combine preventive maintenance with post maintenance to reduce the probability of coal mine mechanical equipment failure.