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A ceramic flat membrane

A flat membrane and ceramic technology, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve problems such as poor ductility, limited service life of ceramic membranes, easy cracking, etc., to improve strength and avoid cleaning dead corners , the effect of reducing damage

Active Publication Date: 2020-01-31
萍乡市普天高科实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing ceramic membrane is mainly composed of a support body, a transition layer and a separation layer. As far as the nature of the ceramic is concerned, although it has high hardness, its ductility is poor, and it is prone to cracking especially under high temperature and high pressure or acid and alkali erosion. , the service life of the ceramic membrane is limited

Method used

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  • A ceramic flat membrane
  • A ceramic flat membrane
  • A ceramic flat membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 Shown: a kind of ceramic flat membrane of the present embodiment, comprises membrane layer 5, transition layer 4 and porous support layer, wherein porous support layer comprises first support layer 1, second support layer 2 and a plurality of support members 3, the first The upper surface of a support layer 1 and the lower surface of the second support layer 2 are provided with protrusions and depressions, the protrusions and depressions are distributed at intervals and the protrusions and depressions are arc arched, the protrusions and depressions of the first support layer 1 and The protrusions of the second support layer 2 are opposed one by one, the depressions of the first support layer 1 are opposed to the depressions of the second support layer 2, the support member 3 is an ellipsoid and its major axis is a vertical direction, and its minor axis is vertical. In the horizontal direction, the upper apex of the ellipsoid contacts the concave bottom of ...

Embodiment 2

[0028] like figure 2 Shown: a kind of ceramic flat membrane of the present embodiment, comprises film layer 5, transition layer 4 and porous support layer, is characterized in that: porous support layer comprises first support layer 1, second support layer 2 and support member 3, Both the upper surface of the first support layer 1 and the lower surface of the second support layer 2 are provided with protrusions and depressions, the protrusions and depressions are distributed at intervals and the protrusions and depressions are arc arched, and the support member 3 is arranged on the first support Between the layer 1 and the second support layer 2, in order to enhance its shock resistance, the support member 3 can be filled with fine particles, wherein the diameter of the fine particles should be much larger than the apertures of the first support layer 1 and the second support layer 2. On the one hand, it prevents fine particles from entering the pores of the first support lay...

Embodiment 3

[0030] like image 3 Shown: a ceramic flat membrane of this embodiment, including a membrane layer 5, a transition layer 4 and a porous support layer, characterized in that the porous support layer includes a first support layer 1, a second support layer 2 and a plurality of support members 3. Both the upper surface of the first support layer 1 and the lower surface of the second support layer 2 are provided with protrusions and depressions, the protrusions and depressions are distributed at intervals and the protrusions and depressions are arc arched, the first support layer 1 The protrusions are opposed to the protrusions of the second support layer 2, the depressions of the first support layer 1 are opposed to the depressions of the second support layer 2, and the support member 3 is a support column whose upper and lower bottom surfaces are arc surfaces. , the apex of the upper bottom surface contacts the concave bottom of the second supporting layer 2, the lower bottom su...

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Abstract

The invention discloses a ceramic flat membrane, which comprises a membrane layer, a transition layer and a porous supporting layer, wherein the porous supporting layer comprises a buffer layer, another buffer layer and a supporting component; the upper surface of the buffer layer and the lower surface of the another buffer layer are both provided with embossments and dents; the supporting component is arranged between the buffer layer and the another buffer layer; the upper surface of the another buffer layer is provided with the transition layer; the upper surface of the transition layer is serrated; the membrane layer is arranged on the upper surface of the transition layer; the lower surface of the membrane layer is provided with a serration matched with the upper surface of the transition layer. The ceramic flat membrane has the beneficial effects that the supporting component is added at the porous supporting layer; the use strength at a high temperature and under high pressure is improved; a contact surface of each layer is arranged to be in a circular-arc shape; a cleaning dead angle is avoided and the damage by acid and alkaline corrosion is lightened.

Description

technical field [0001] The application belongs to the field of membrane material preparation, and in particular relates to a flat ceramic membrane. Background technique [0002] With the development of science and technology, the mixture separation and purification technology develops rapidly. From simple filtration to filtration, evaporation, separation, and a complete set of purification system, filtration, as the most basic process, is constantly being updated. Among them, membrane separation As a High-efficiency and energy-saving separation methods are widely used in the field of production and life. [0003] As a representative of inorganic membranes, ceramic membranes are more resistant to high temperature and corrosion than organic membranes. Common ceramic membranes are mostly tubular, while flat membranes are relatively rare. However, due to their high mechanical strength, flat membranes are It can be scrubbed mechanically, and its service life is greatly improved....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/06B01D71/02B32B33/00B32B3/30
CPCB01D69/06B01D71/02B32B3/30B32B33/00B32B2307/56B32B2307/714
Inventor 黄乃乔袁明辉杨建萍
Owner 萍乡市普天高科实业有限公司
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