Regular maintenance and overhaul are the necessary conditions to ensure that flotation has achieved good technical and economic indicators. The maintenance and overhaul of the flotation machine will be performed so that the flotation machine can achieve a good working condition, so as to obtain better benefits.
ZK CORP engineer often emphasizes the importance of equipment maintenance and regular maintenance. It must be said that everyone has a certain understanding of this. The author of this paper consulted the engineers of the ZK CORP about the maintenance and repair problems of the flotation machine. The following work should be done during maintenance and repair.
First, according to the regulations, it is necessary to do a good job in the lubrication of machinery and equipment operation parts. For example, the upper and lower bearings of the mixer, the bearings of the squeegee shaft, the speed reducer, and the like. What is often overlooked is the less active parts such as the screw and umbrella gears that control the level of the gate, the lead screw on the discharge port, and so on. Poor lubrication may cause undesirable phenomena such as motor heating, shaft twisting, adjustment failure, and inconvenient operation.
Second, regularly clean the flotation machine. When the coal slurry contains muddy materials, wood chips and other impurities, the grooves of the impeller chamber and overflow surface adjustment gate may be clogged with various impurities. The components in the machine room are soaked in the coal slurry for a long time, and the surface is easily covered with muddy sediments, which may lead to the reduction of the effective volume of the machine room and the occurrence of unevenness of the overflow under the scraper. These may affect the effectiveness of the flotation machine and must be cleared in time.
Third, if the flotation machine has abnormal vibration and noise, it must be shut down for inspection and processing. When the air inlet is blocked, it must be cleared and dredged in time.
Fourth, pay attention to check the working status of the scraper. Do not bend the shaft, the bearing can not sink, the coupling can not be loose, the scraper blade can not be short, the fixing screw must not loosen, the blade should be flat, the outer edge should be kept horizontal and so on. The outer edge of the squeegee of each slot must be scraped to the same depth, and parts that cannot meet the technical requirements must be repaired or replaced in time.
Fifth, pay close attention to the work of the motor. There are many reasons for the overheating of the motor shaft bushes, such as the sedimentation of sludge at the bottom of the tank, the small clearance of the stator of the impeller, the blockage of the suction pipe, and the cause of the motor itself. It is necessary to analyze the reasons carefully and master the laws of accidents in order to effectively avoid or reduce electrical accidents.
Sixth, the impeller speed of the flotation machine is an important technical parameter. To ensure that the flotation machine achieves the rated rotational speed, the main measure is to make the triangular belt on the belt pulley reach the specified number, tightness is moderate, and the degree of tightness of each belt is similar. Insufficient or uneven elasticity of the triangular belt is an important reason for the insufficient number of revolutions of the flotation machine impeller.
Seventh, according to the coal slurry inflating and agitating effect and the load change of the motor, etc., at any time to inspect the wear parts of the easy to wear parts (such as the stator, impeller, injector nozzle, etc). Undesired parts must be adjusted or replaced in time to ensure that the flotation machine is operating in a good technical condition.
Regular maintenance and overhaul are the necessary conditions to ensure that flotation has achieved good technical and economic indicators. The maintenance and overhaul of the flotation machine will be performed so that the flotation machine can achieve a good working condition, so as to obtain better benefits. Therefore, the engineers of ZK CORP reminded users that they must do maintenance and repair work during the use of mineral processing equipment.