How to set the shaft seal of screw conveyor?
Release time:
2022-02-28
In the design of the screw conveyor, the dust seal of the shaft at the head and tail is very important. The seal differential pressure and the end seal of the groove are used to prevent dust or dust in the groove from entering the bearing and prevent water from entering the groove along the shaft. The sealing seat at the end of the spiral groove is made of gray iron. It is arranged between babbitt alloy, ball bearing or green steel bearing bush and groove end plate. The sealing cover is made of gray iron or split flange and pressed into the filler along the rotating steel shaft. To reduce dust leakage
Is the dust seal at both ends of the screw conveyor shaft set in this way?
In the design of the screw conveyor, the dust seal of the shaft at the head and tail is very important. The seal differential pressure and the end seal of the groove are used to prevent dust or dust in the groove from entering the bearing and prevent water from entering the groove along the shaft. The sealing seat at the end of the spiral groove is made of gray iron. It is arranged between babbitt alloy, ball bearing or green steel bearing bush and groove end plate. The sealing cover is made of gray iron or split flange and pressed into the filler along the rotating steel shaft. To reduce dust leakage
The Technology Department lists the following different design methods: the shaft seal is set away from the inlet and outlet of solid materials, which can greatly simplify the shaft seal to prevent the material from pressing on the seal due to the angle of repose of the material. The air-filled packing box-type sealing device is applied, and the clean gas is sent into the box shell. The sealing can effectively prevent the dust flying away from the screw conveyor from entering the bearing. At the end of the screw conveyor (non drive end), the blind plate at the end of the groove is used to support the inner suspension bearing (if this inner suspension bearing can be installed), so the shaft seal can not be used.
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