When the concrete mixer equipment has the problem of slow feeding of powder: the screw conveyor is slow in feeding, the feeding time is more than 2 minutes, and the conveying can be completed within 20 seconds under the normal feeding condition.
The causes of this kind of failure are analyzed
The main influencing factors are the unsmooth discharging of powder tank and the damage of screw conveyor. The forms of unsmooth cutting of powder include powder arching, material caking at the outlet of powder tank, too small opening of discharge butterfly valve, insufficient material in powder tank, etc. The damage of the screw conveyor is mainly the deformation of the screw blade, which can not be transported normally.
1. Open the air hammer arch breaking device.
2. Check the opening of the discharge butterfly valve of the powder tank, and make the butterfly valve in the fully open position.
3. Check whether the materials at the outlet of powder tank are caked.
4. Check whether the blade of screw machine is deformed. If it is deformed, remove it for correction or replacement.