Common Troubles and Solutions of Screw Conveyor

 1. Connecting bolts are easy to be broken.

Connecting bolts in head section support the torque of load motor of screw conveyor which is composed of several screws. And connecting bolts in middle and tail sections support lower torque. So bolts in head section is easy to be broken.

Solution: Use high-strength bolt in head section, or use three connecting bolts if necessary to ensure the normal operating and avoid the connecting bolts are too short.

2. Hanger bearings are easy to wear.

There are many factors affecting the wear of hanger bearing, such as working environment, conditions, property of conveying materials, structure type of hanger bearing, quality, etc. Especially when hanger bearings are buried in materials in operation, and the sealing and lubrication are not good, it is easy cause that materials enter bearing and shaft neck contact surface and make wear quickly.

Solution: Select bearings with wear resistance and high quality, and ensure good sealing and lubrication to extend the service life of hanger bearings.

3. Screw is broken because of improper installation position of hanger bearing.

Solution: Install hanger bearing which is concentric with connecting shaft, and ensure that all hanger bearings concentricity and keep the coaxility of screws. The hanger bearings should secure connection, and keep a proper gap with connecting shaft to ensure the flexible rotation of screws.

4. Blocking in inlet.

It is easy to occur blocking for materials with strong arch feature, high humidity, big blocks, etc. Especially in the situation of non-uniform feeding.

Solution: Don’t feeding the material non-conformity to the requirement. And keep uniform feeding without beating inlet.   

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. Our goal is "be the future global leader of mining machinery industry". If you have any question, please feel free to consult us (E-mail: info@pkmachinery.com) we will give you accurate and timely service.