QVC Pneumatic Vacuum Conveying Common Problem
The loading machine can not be loaded or the loading ability is small. Please check the following procedure.
The system air supply pressure has not reached 0.5-0.6MPA
Whether the supply pressure of the system reaches 0.5-0.6Mpa (supply pressure refers to the air pressure in the system when the vacuum generator is working).
Is the discharge door tight?
After a long period of use, a certain thickness of powder is deposited on the discharge door, causing the door to be closed and leaking vacuum. The discharge door should be cleaned.
After a long period of use, the sealing rubber ring of the discharge door is worn, causing the door to be closed tightly, and the vacuum is leaked, and the sealing ring should be replaced.
After a long period of use, the cylinder output and stroke are faulty, and the cylinder should be replaced.
After the filter is blown off with compressed air, the filter is blown back with the nozzle. If it is very smooth, the filter is not blocked. If you feel suffocating, the filter has been blocked. In this case, the filter should be replaced or the filter should be blocked. Wash in an ultrasonic cleaner for more than 30 minutes.
Suction tube is blocked by bulk material
It often occurs at the inlet of the stainless steel suction nozzle and at the inlet of the vacuum hopper.
The clamp between the pump head and the hopper and between the hoppers is not tightened
The clamp between the pump head and the hopper and between the hoppers is not tightened, causing the system to leak air, unable to load or reduce the feeding capacity.
Backflush system failure
The compressed air pulse backflush filter stored in the air bag by the vacuum feeder every time the material is discharged ensures that the filter surface has only a very thin layer of powder. If the backflush system fails, the surface of the filter will accumulate thicker powder, increasing the resistance and causing the vacuum feeder to fail to feed. In this case, the backflush valve should be replaced.
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