Bag overturning centrifugal machine

Abstract

The invention relates to a bag overturning centrifugal machine. The bag overturning centrifugal machine comprises a rack. A baffle is vertically connected to the rack, one side of the baffle is rotationally connected with a drum, a rotation drive mechanism for driving the drum to rotate and a pushing mechanism for unloading are fixedly connected to the portion, on the other side of the baffle, ofthe rack, a filter bag is arranged in the drum, a scraper is arranged in the drum, the scraper can be driven by a scraper hydraulic cylinder to move in the axial direction of the drum back and forth to overturn materials on the inner wall of the filter bag, bonding and caking of the materials are avoided, thus, the loose states of the solid materials are kept in the solid-liquid separation processof the materials, and a preparation is made for smoothly pushing the materials in the later period.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of solid-liquid separation, in particular to a bag-turning centrifuge capable of scraping materials. [0003] Background technique: [0004] With the implementation of pharmaceutical production standards such as GMP and FDA, the production requirements of the pharmaceutical industry are becoming more and more stringent. The inverted bag centrifuge has been widely concerned and applied due to its advantages of airtight operation and complete discharge. However, for fine and viscous materials, when the structure of the current flip-bag centrifuge is used in actual production, there is a phenomenon that the materials will condense into a whole block and have high hardness after being centrifuged and dried. When unloading, the pushing shaft and the pushing plate will be subjected to a large force in an instant, which is easily deformed, and it is difficult to realize unloading. As for how to improve the...

AI Technical Summary

Problems solved by technology

[0005] The invention patent document with the application number "200610053844.8" discloses a structure that utilizes a friction clutch, a threaded shaft and a moving shaft to drive the axial movement process of the pushing shaft of the bag-turning centrifuge. The disadvantage of this structure is: the screw drive When transmitting a large load, the wear of the thread will be more serious; the overall structure is more complicated and the cost is higher

The disadvantage of this structure is: the direct contact of the pusher shaft with hydraulic oil may affect the product and the stiffness and strength of the pusher shaft will decrease; in addition, if the material with small grains may condense during the centrifugation process, Larger blocks are formed, deforming the pushing pusher shaft

Aiming at these problems, this patent proposes a new type of bag-turning centrifuge, which can solve the problem of difficult unloading due to material coagulation

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