How to choose tubular screw conveyor according to the characteristics of materials
How to seal the screw conveyor
The screw loading conveyor adopts the bearing support structure at both ends. The screw shaft will be bent when the deflection is large, and it is prone to wear of the blade and the shell and the seal of the shaft and the end seat. The gap between the shaft and the end seat is slightly larger, and the sealing effect is very good. Poor, the ordinary sealing method is to use packing seal, the sealing effect is good at the beginning of operation, after a period of operation, due to the wear of the journal and packing, the sealing effect will get worse. To this end, the sealing system is improved and designed: the size of the shaft sleeve at the end seat seal packing is extended to 60mm, and the number of packing turns is increased to enhance the sealing effect; the contact surface of the shaft and the packing and the packing itself are filled with oil through the oil cup to enhance the lubrication and infiltration effect , Reduce the wear of packing and shaft, at the same time form an oil film layer, prevent powder from flowing out through the gap at the journal, the oil groove extends to the inner layer, the sealing effect is obvious; a pair of labyrinth skeleton seal rings are designed inside the end seat shaft sleeve, one is fixed On the shaft sleeve, the other is installed on the shaft to run with the shaft to prevent powder from flowing out and play a role in sealing. Improve the screw conveyor sealing system, the site use conditions are good and fully meet the use requirements, this improved seal design can also be applied to related mechanical equipment to improve equipment performance.
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