Cold winter, it seems that even the air is cold. For the ball mill this large grinding equipment, they also need to "keep warm" in winter to ensure that they are more "energetic".
The low temperature in winter increases the viscosity of lubricating oil and decreases the fluidity, which greatly affects the lubrication effect of ball mill. And because of the shutdown and running temperature changes, the ball mill in each startup need to adjust the valve oil supply pressure reached 0.2 ~ 0.4mpa, but with the increase of running time, lubricating oil temperature also increases, viscosity continues to decline, pressure is also reduced. If the valve is not adjusted in time and the pipeline resistance is increased at this time, the continuous low oil supply pressure will cause the thin oil station to alarm and stop grinding. Therefore, it is very important to do the lubrication work of the ball mill in winter.
Matters needing attention in lubrication work
1, the selection of low oil number lubricating oil, oil is thin, at low temperature can ensure better fluidity. The use of high oil grade lubricating oil, the oil quality is thicker, poor liquidity, if there is no indoor heating and lubricating oil preheating device, the oil pump station can not work at all;
2, at the beginning of winter, all lubricating oil in the ball mill into continuous operation for a month should be released, thoroughly cleaned and replaced with new oil;
3. When starting, refueling or changing oil in winter, the oil should be heated to about 25°C in advance. If grinding is stopped for more than 8 hours, the lubricating oil of the main bearing should be released and heated to 20℃ before starting the machine and then poured into the bearing;
4, equipped with large and small gear spray lubrication system, enhance lubrication effect, reduce gear wear, automatic control of oil injection and display the working process, to ensure stable lubrication state;
5. The lubricating oil that has deteriorated or is not clean is not allowed to be used, and the new lubricating oil should be filtered before adding new lubricating oil;
6. Check the lubrication condition and oil level height of each lubrication point at least once every four hours.