The most likely cause of screw conveyor blockage failure is that the operator does not strictly operate according to the operating specifications, the operator should start with no load, the feed should be uniform, the conveyor must be stopped when it is empty, and it cannot be run without load. In order to ensure uniform feeding, a vibrating feeder can also be installed. In the feeding process, if the material is suddenly fed, it is also easy to cause blockage, and it will increase the wear of the conveyor. Therefore, it should be gradually increased during the feeding process and slowly reach the rated conveying capacity.
When selecting a screw conveyor, it is necessary to consider the conveyed materials, the amount of conveying, the speed of the conveyor, the motor power, etc. If the selected conveyor and the materials to be conveyed do not match the achieved effect, it will also easily cause the conveyor to block the material. Therefore, careful consideration should be taken when choosing a conveyor, and the materials should be selected to achieve a matching effect.
When the screw conveyor conveys the material, there must be impurities in the machine. If the necessary cleaning is not carried out, it will cause large residual impurities or fiber impurities to cause blockage. Therefore, in order to reduce the occurrence of blockage, the material should be carried out inside the machine. Clean up.
The bearing of the conveyor is the most prone to blockage problems, so in order to reduce the occurrence of blockage failures, the horizontal size of the suspended bearing should be minimized.
In addition to the above methods, it is also possible to install a silo leveler and a clogging sensor to achieve automatic control and alarm; increasing the discharge port or lengthening the end of the trough can effectively solve the problem of poor discharge, and can also be A small section of counter-rotating blades is installed at the end of the feed slot. All of these can effectively prevent material blocking failure at the end.
If you choose a tubular screw conveyor, you can add a valve at the discharge end, so that once the material is blocked, the door is opened to clean the material.
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