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Composite ceramic membrane and preparing method thereof

A technology of composite ceramic membrane and support body, applied in the field of ceramic membrane, can solve the problems of system shutdown, easy rupture, unqualified water production, etc., and achieve the effect of reducing production loss, reducing dead volume, and reducing investment.

Active Publication Date: 2016-09-07
BEIJING NEWBIOLINK TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the thickness of the support layer of the outermost channel and the outer wall is different, there must be a weakest place, and it is easier to break during the use of the ceramic membrane
[0005] In the application, whether it is imported or domestic ceramic membrane, local peeling of the support body between the outermost channel of the ceramic membrane and the outer edge of the support body has occurred many times, resulting in unqualified water production and system shutdown, affecting the normal operation of production

Method used

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  • Composite ceramic membrane and preparing method thereof
  • Composite ceramic membrane and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] figure 1 Schematically provides a cross-sectional structure diagram of the composite ceramic membrane of Example 1 of the present invention, as figure 1 As shown, the composite ceramic membrane includes:

[0053] A honeycomb ceramic membrane support body 1 and a ceramic membrane 2 with a fluid channel 5, the ceramic membrane and its support body are prior art in the art, and will not be repeated here;

[0054] Reinforcement layer 3, the reinforcement layer is sleeved on the outside of the support body, the inner wall of the reinforcement layer has grooves 4 arranged from top to bottom, and the space between the grooves and the outer edge of the support body is formed as a permeation side channel, The permeate side channel forms a space between the groove and the outer edge of the support body.

Embodiment 2

[0056] figure 2 Schematically provides the structure diagram of the composite ceramic membrane of the embodiment of the present invention 2, as figure 2 As shown, the composite ceramic membrane includes:

[0057] The ceramic membrane support body 1 and the ceramic membrane 2 having the fluid channel 5, the ceramic membrane and its support body are prior art in the art, and will not be repeated here;

[0058] A reinforcement layer 3, the reinforcement layer is sheathed on the outside of the support body;

[0059] The support 8 is arranged between the support and the reinforcement layer; the permeation side channel 6 forms a space between the support, the support and the reinforcement layer, and the permeation side channel 6 communicates with the outlet 7 .

Embodiment 3

[0061] An application example of the ceramic membrane according to Embodiment 1 of the present invention.

[0062] In this application example, the geometric dimensions: the external diameter of the ceramic membrane tube support is 41 mm, the channel diameter is 6 mm, the number of channels is 19, and the length is 1000 mm. The reinforcement layer is made of PFA plastic, in which the thickness of the PFA tube is 2mm and the inner diameter is 41mm, and the PFA tube is tightly sleeved on the ceramic membrane support. The inner wall of the PFA tube is provided with a helical top-down triangular groove with a depth of 0.5 mm to form a fluid channel on the permeate side of the ceramic membrane.

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Abstract

The invention provides a composite ceramic membrane and a preparing method thereof. The composite ceramic membrane comprises a supporting body with fluid channels, and further comprises a reinforcing layer, wherein the supporting body is sleeved with the reinforcing layer, and permeation side channels are formed between the reinforcing layer and the supporting body. The composite ceramic membrane has the advantages of being high in strength, low in cost and the like.

Description

technical field [0001] The invention relates to a ceramic membrane, in particular to a composite ceramic membrane and a preparation method thereof. Background technique [0002] The ceramic membrane is acid-resistant, alkali-resistant, organic solvent-resistant, has high mechanical strength, can be backwashed, has strong anti-microbial ability, high temperature resistance, and high separation efficiency. Gold industry and other fields have been widely used. [0003] In the preparation process of the multi-channel ceramic membrane support body, the thickness of each part on the radial section is different, and the force of each part cannot be completely uniform during extrusion molding, and the obtained green body will have different densities. During the sintering process, when the temperature is higher than a certain temperature, the support body is in a fluid state, resulting in viscous flow, which promotes the relative movement between solid particles and forms a close p...

Claims

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Application Information

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IPC IPC(8): B01D71/02B01D69/12B01D69/10B01D67/00
CPCB01D67/0039B01D69/10B01D69/12B01D71/02
Inventor 李君占
Owner BEIJING NEWBIOLINK TECH DEV
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