Anti-corrosion and abrasion resisting device of piston material pushing centrifugal machine

Abstract

The invention discloses an anti-corrosion and abrasion resisting device of a piston material pushing centrifugal machine. An abrasion resisting plastic lining, an abrasion resisting ring and a ceramic sieve net are arranged on an overflow channel of the centrifugal machine, and therefore high-hardness strong-acid materials are prevented from making contact with a metal component; material impact and abrasion are relieved through the abrasion resisting ring; the service cycle of the sieve net is obviously prolonged through the high hardness (the Moh's hardness 9) and the corrosion resisting character of the ceramic sieve net; the anti-corrosion and abrasion resisting device is mainly applied to quartz sand (the Moh's hardness 7) and strong-corrosivity materials, the corrosion and abrasion overlapping destructive power is reduced to the minimum, and the service life of the machine is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of a piston pusher centrifuge, in particular to an anti-corrosion and wear-resistant device for a piston pusher centrifuge. Background technique [0002] The piston pusher centrifuge belongs to a centrifuge that continuously feeds, separates and discharges materials. When working, the pusher disc and the drum rotate synchronously, and at the same time, the pusher disc also moves back and forth axially relative to the drum; the suspension is produced by The feed pipe enters the screen on the inner circle of the drum through the material distribution plate, the liquid phase passes through the screen and is thrown out of the machine, and the solid phase is trapped by the screen to form a filter cake, and the filter cake is moved along the shaft by the reciprocating pushing plate. To push out the drum to complete the solid-liquid separation. [0003] Most of the components such as the drum, the pushing plate, a...

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Problems solved by technology

[0003] Most of the components such as the drum, the pushing plate, and the screen of the existing piston pusher centrifuge are made of metal stainless steel (Mohs hardness 5.5). When separating high hardness and strongly corrosive materials, such as quartz sand (Mohs Hardness 7), because the hardness of the material is greater than that of stainless steel and general metals, when the high-hard material is fed, it will directly wash the push plate and the screen under the action of centrifugal force, and the material will wear a lot on the screen under the reciprocating motion of the push plate , the screen fails prematurely under the severe friction of the abrasive; in addition, the strong acid and high concentration of chloride ions in the high temperature environment severely corrode the stainless steel components in the drum. When separating strong acid and high hardness materials, the superimposed destructive force of corrosion and wear is even greater , faster loss of metal components, greatly affecting the service life of the machine

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