Coal gangue is a kind of low calorific value fuel, kaolinite gangue is rich in aluminum resources and a large number of other mineral components that can be used. Our government also attaches great importance to the comprehensive utilization of coal gangue, and has adopted a series of policies, such as financial subsidies, subsidized loans, tax exemptions, etc., to encourage the comprehensive utilization of coal gangue. The gangue crusher adopts multi-channel discharge to improve the output per hour, and at the same time, reduce the cycle of dust deposition, with excellent dustproof effect, without dust collection device. Bearing is the more important accessories on the coal gangue crusher, its performance directly affects the normal operation of the equipment and production efficiency. During the operation of the equipment, users should pay special attention to the bearing temperature and bearing parts of the noise, abnormalities should be dealt with early. It is one of the common failures of gangue crusher. The following are the reasons for the heating of the coal gangue crusher bearing. 1, 2 bearing seat height is uneven, or motor rotor and crusher rotor is not the same center, will make the bearing by the impact of additional load, thus causing the bearing overheating. This situation, to immediately stop to troubleshoot to avoid early damage to the bearing. 2, too much lubricating oil in the bearing, too little or aging is also the main cause of bearing overheating and damage, therefore, according to the use of the use of the book requirements on time and quantitative filling of lubricating oil, general lubrication accounted for 70-80 percent of the bearing space, too much or too little are not conducive to bearing lubrication and heat transfer. Bearings to extend their service life. 3、The fit of bearing cover and shaft is too tight. The fit of bearing and shaft is too tight or too loose will lead to bearing overheating. Once this problem occurs, in the operation of the equipment, there will be a grinding sound and obvious swing. The bearing should be stopped and removed. Repair the friction parts, and then reassemble as required.  

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