Maintenance skills of specific gravity stone remover

28-01-2021

The suction specific gravity stone remover is mainly used for grain processing. It can clean up side stones and higher impurities in wheat, rice, soybeans, peanuts, rapeseed, and rice, and can also be used to separate impurities in other grains. The maintenance skills of the specific gravity stone removal machine mainly consist of the following points:

1. Keep the air flow unobstructed when removing the stone sieve, uniform air door, air inlet door and reverse air duct. If the sieve hole is blocked, it can be cleaned with a cleaning brush. Do not knock, so as not to cause deformation of the sieve plate and affect the efficiency of stone removal. If it is worn out, it should be replaced in time. The double-sided raised fish-scale hole sieve can be turned over and used.

2. Regularly check the temperature rise of the bearing. Generally, the temperature should not exceed 25℃ at room temperature. The bearing should be cleaned and changed oil regularly.

3. Frequently check the stone content in grains and the material content in the stone. If an abnormality is found, analyze the cause and take corresponding measures in time. Generally, the material content in the stone should be controlled below 1%.

4. When parking, stop the material first, then stop the wind, then shut down, and finally close the damper. After parking, a layer of material should be reserved on the stone-removing sieve to facilitate the normal stone-removal immediately next time you drive.

5. In the process of disassembly, assembly and maintenance of the machine, attention should be paid to prevent the loss and deformation of parts, and the parts should be removed as little as possible during maintenance. When assembling, you must use the longitudinal centerline of the machine as the axis of symmetry, and assemble the original in its original position. The center line of the screen body should coincide with the center line of the frame. The eccentric axis, the upper shaft of the eccentric connecting rod, the upper and lower shafts of the swing rod, and the core shaft of the vibration motor transmission frame should be horizontal and parallel to each other. The horizontal line of each axis is perpendicular to the longitudinal centerline of the screen body, and the stone removing screen should be horizontal along the width of the screen.

6. After maintenance and assembly, the empty car should run smoothly without twisting or bumping. During calibration, heavy impurities of the same size can be placed in the middle or both sides of the width direction of the discharging end of the de-stone screen surface. If they can all move upwards at the same time, it is normal; then carry out the feeding test to observe the movement of the material and the discharging condition; When the feed is interrupted, there is a local blow-through phenomenon near the end of the rock. Normally, the blow-through shape is very symmetrical. In case of unilateral movement, vortex and dead angle, etc., it should be corrected immediately.


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