Coating device for production of water treatment tubular membrane

Abstract

The invention discloses a coating device for production of a water treatment tubular membrane. The coating device for production of the water treatment tubular membrane comprises a machine base; the outer surface of the top of the machine base is welded with a sol pool; the inner side wall of one side of the sol pool along a horizontal direction is fixedly connected with a bracket; a supporting body is arranged on the outer surface of the top of the bracket; a sleeve is arranged on the outer surface of the supporting body in a sleeving way; the outer surface of the top of the machine base is welded with a vertical frame on the back part of the sol pool; the outer surface of the top of the vertical frame is in bolt connection with an air cylinder; the outer surface of the top of the sleeveis in bolt connection with a hydraulic rod; and one end, away from the bracket, of the supporting body, is fixedly connected with a turnplate. The coating device for production of the water treatmenttubular membrane guarantees that the supporting body and the sol are contacted for a certain time, increase the sol adhesive force, enhances the coating effect, guarantees the filtering effect of thetubular membrane, is uniform in coating, guarantees consistent filtering effect of the tubular membrane, improves the quality of the tubular membrane and brings good use prospect.

Description

technical field [0001] The invention relates to the field of tubular membranes for water treatment, in particular to a coating device for producing tubular membranes for water treatment. Background technique [0002] Tubular membrane is a separation device that combines a membrane with a separation function on the outer wall of a porous circular tube such as sintered polyethylene, or the center hole of the circular tube for water treatment. The production process of the tubular membrane is roughly divided into preparation of support, preparation of sol , coating, gelation, cleaning, drying, and sintering. The coating process is to immerse a part of the support from the outer diameter to the inner diameter in the aged sol, and then drive the support to rotate, and then lift it up while rotating. Pull the support body away from the sol liquid surface, so that the peripheral wall of the support body is coated with a layer of liquid film. This process needs to be realized with t...

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Problems solved by technology

[0003] The existing coating device for tubular membrane production has insufficient contact time between the support body and the sol, and the adhesion effect of the surface sol is likely to be poor during the pulling process, which in turn makes the coated tubular membrane The coating effect of the sol on the outer surface of the surface is poor, which leads to poor filtration effect of the tubular membrane. In addition, the traditional coating device ensures uniform coating while ignoring the adhesion effect of the sol on the surface of the support, which often results in tubular membranes. The uneven coating on the surface of the membrane leads to inconsistent filtration effects in different parts of the tubular membrane and affects the quality. Therefore, it has a certain impact in the process of use. Therefore, we propose a coating for the production of tubular membranes for water treatment. cover device

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