A powder vacuum feeder is a conveying device that utilizes vacuum suction to transport granular and powdered materials. It is widely used in production and research fields such as food, pharmaceuticals, chemicals, ceramics, feed, pigments, and agricultural products. Using a vacuum conveyor can significantly reduce dust pollution in the workshop, improve cleanliness, enhance productivity, save labor, and minimize contamination.

The vacuum pump generates a vacuum, and the resulting negative pressure draws the material in through the feed inlet. Inside the filtration chamber of the separation container, the air and material are separated. The material falls automatically under gravity and is collected in the hopper. The cyclone separator prevents fine powder from entering the filter, improving its efficiency. When the hopper is full of material, the vacuum pump automatically shuts off, and the pressure inside the conveying equipment equalizes. The discharge valve opens, and the material flows out through the discharge port, directly falling into the storage container. During discharge, the filter element is automatically cleaned by the reverse blow airbag. Once discharge is complete, the discharge chamber closes automatically, and the entire conveying process restarts.

Key maintenance points are as follows:

When the storage hopper contains material and the discharge gate is not open, it is strictly forbidden to reverse the feeder. Otherwise, it may damage the screw blades or even burn out the motor.

During operation, pay attention to the material level in the storage hopper. If the hopper is already full and the feeder continues to supply material, the outlet of the feed pipe may become blocked, damaging the screw blades and, in severe cases, burning out the motor. (Blockage at the feed pipe outlet is strictly prohibited.)

If conveying becomes difficult or blockage occurs during operation, stop the machine immediately. Open the discharge gate, reverse the feeder motor, and remove the material or debris blocking the feed pipe. Clean the feed pipe afterward.

If abnormal sounds occur in the feed pipe during operation, stop the machine immediately, cut off the power, lay the feed pipe flat, and carefully pull out the screw shaft. Check if the screw shaft is deformed or misaligned. If so, repair it accordingly.

Applying these maintenance methods can help ensure the operational efficiency of the machinery and allow operators to use the equipment reasonably with confidence.