Technical improvement of 5500x950 overflow ball mill

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In recent years, copper slag beneficiation has become an important technology for resource recovery and recycling. This process will be widely used in the enrichment of useful minerals in copper sulfide and nickel-copper reproduced mines. Generally speaking, copper slag slow cooling, coarse crushing, semi-automatic grinding + ball milling, flotation, and dehydration processes will be used. The daily processing capacity is about 2000-4500 tons. With the recovery of the non-ferrous metal market, this technology is constantly improving and maturing. It is of great significance to the improvement of the recovery and utilization of mineral resources and the sustainable development of non-ferrous metal enterprises. Copper slag grinding generally uses semi-automatic The process of grinding + ball milling.

When the pinion gear is broken in the ball mill, we have to replace the gear shaft and align the transmission part, so as to ensure that the gap between the large and small gears and the tooth surface contact rate meet the installation requirements. At the same time, the pinion of the ball mill should be tested during the operation of the ball mill through the strobe and vibration meter, and the improvement measures and plans should be specified in time based on the test result data, and the test can be used to fine-tune the tooth surface deflection. At the same time, communicate and exchange with the equipment manufacturer to improve the processing quality of the gear shaft from the source, ensure the processing accuracy, and avoid the occurrence of tooth broken accidents caused by product problems.

In response to the problems arising from the operation of ∅5500x950, especially the main bearing bush accident, the joint equipment manufacturer has further improved and optimized the ball mill lubrication system. One is to use the screw pumps of international brands for continuous and stable oil supply to the equipment. The second is to increase the fixed end bearing to high-pressure thrust lubrication, and forcibly supply oil to the bearing bush to prevent friction damage between the bearing bush section and the end face of the hollow shaft. The third is to install an oil film detection sensor on the main bearing shell to detect the oil film thickness of the main bearing in real time. The fourth is to replace the one-way clutch of the cranking device with a two-way clutch. After each cranking, the material is flat at the lubricating oil station. Fifth, interlock the open jet lubrication system with the start and stop of the mill, dry oil injection or fault alarm, and if the fault is not handled, the control equipment will be delayed and stopped.

For details, please check: https://www.kidsinafrika.de/

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