Development and application of movable cleaner in coal mine air compressor cooling system Yang Xintao, Liu Lina, Li Feng (Linzhuang Mining Group Tianzhuang Coal Mine, Shandong Chuzhou 272103) are all taken out by circulating water in the cooler pipeline. When the water in the cooler absorbs heat to 80*, dirt (particles and scales) will be generated in the pipe wall, and the cooler pipe will be clogged, which will seriously reduce the cooling effect of the air compressor. This article mainly introduces the method of cleaning the dirt in the cooler pipeline and the design principle of the cleaner.
+.207B The air compressor cooling water used in Tianzhuang Coal Mine is softened water. The cooling pool is open-air. When it is rainy and windy, rainwater and dust will enter the cooling pool to degrade the softened water. The cooling water is in the pipeline for a long time in the cooler. Circulating flow can cause corrosion of the pipeline. When rust and other debris particles are mixed with the deteriorated cooling water to flow into the narrow line of the air compressor cooler, the heat generated by the operation of the air compressor causes the cooling water to generate dirt on the inner wall of the cooler pipe. When the dirt accumulates to a certain extent, it will cause blockage of the narrow pipe of the cooler. At this time, the air compressor cooling effect will be seriously reduced, causing the air compressor to over-temperature alarm and stop. In order to solve the above problems, it is necessary to regularly clean the dirt on the inner wall of the air compressor cooling pipe.
After researching and self-research, Tianzhuang Coal Mine has processed a portable air compressor cooling system cleaner.
1 Working principle and its advantages The dirt generated on the inner wall of the air compressor cooler pipe is alkaline, and it needs to be neutralized with an acidic cleaning agent to make the dirt dissolve in water.
The particles of the foreign matter that cannot be neutralized and chemically reacted with the acidic cleaning agent are cleaned by a sieve. For cleaning, use s-310 fine water cleaning agent with a concentration of about 10%.
1.1 The composition of the cleaner The device consists of a cleaning agent container with a volume of 0.8 m3 and an acid-resistant volute Water Pump, a motor with a power of 1.5 kW and a rated voltage of 380 V and a pipeline. The cleaning agent container has two upper and lower nozzles with a diameter of 80 mm.
1.2 Working principle The suction side of the volute water pump is connected to the lower nozzle of the cleaning agent container. After the motor is energized, the volute pump is driven. The water outlet side of the pump produces a cleaning fluid with pressure (0.7 MPa) and passes through the hose and air compressor inlet gate valve. Connected and pressed the cleaning agent into the air compressor cooling line. The rust and debris particles inside the pipeline with the cleaning agent are returned from the drain gate valve through the hose to the washer vessel. A filter screen is installed on the upper inlet side and the lower outlet side of the container to filter out rust and debris in the air compressor cooling line--, male, graduated from Shandong University of Science and Technology in 2007 with a bachelor's degree in automation, assistant engineer He is currently the deputy head of the Electrical and Mechanical Zone of Tianzhuang Coal Mine of Lin Mining Group.
Particles ensure that the cleaning agent can be recycled. After the cleaner is operated for 2 hours, the motor power supply is stopped, the filter screen on the water inlet side and the water outlet side of the container is removed, and the debris particles inside are removed. Finally, close the inlet and outlet valves of the air compressor, remove the washer to connect the hose and the motor power, and then push the washer to the idle position, and the cleaning is completed.
In order to make the equipment easy to operate, put all the equipment on the self-processing cart. When cleaning the air compressor, just push it to the air compressor to be cleaned and connect the pipeline to clean it. There is no need to manually remove and install the cooler. This design not only saves the pipeline material for cleaning, but also saves the space occupied by the washer, saves labor and reduces the labor intensity of the staff, and has good practicability, feasibility and safety.
1.3 Precautions The acid concentration of the cleaning agent should not exceed 15%. Otherwise, it will accelerate the corrosion of the cooler circuit.
2 Conclusion Air compressor cooling system cleaner used after one year, the effect is very good. The device is designed and manufactured by itself, with simple structure, convenient operation, reliable performance and strong practicability. It can be operated by one person, saves a lot of manpower, reduces the labor intensity of employees, prolongs the service life of air compressor cooler, and reduces equipment and The input of accessories reduces the material consumption and has good economic benefits. The equipment is used to clean the air compressor regularly, which ensures the clean operation of the cooling system, and eliminates the problem that the air compressor is shut down due to the over-temperature alarm caused by the blockage of the cooling pipeline system, which affects the safe production of the mine.
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