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A platform for research: civil engineering, architecture and urbanism
Multi-channel tubular ceramic membrane element
The invention discloses a multi-channel tubular ceramic membrane element which comprises a porous support layer and a top-layer membrane layer coating the surface of the porous support body, wherein the top-layer membrane layer is prepared by adopting a method comprising the following steps: (1) preparing a powder body I with a diameter of about 200-300nm; (2) preparing a powder body II with a particle size of 1-2 micrometers; and (3) mixing the powder body I and the powder body II, adding a dispersing agent in the mixed powder body, ball-grinding and mixing to obtain a uniform and stable top-layer membrane suspension slurry, and sintering at a temperature of 1200-1300 DEG C. According to the multi-channel tubular ceramic membrane element, the property of a coating slurry can not be influenced, the continuity of the surface of the membrane can not be damaged and the permeability is not reduced; the multi-channel tubular ceramic membrane element has a function of only forming mutually-discontinuous bulges, and a turbulent flow caused by the bulges ensures that the permeation flow around the turbulent flow is remarkably increased and kept not being attenuated.
Multi-channel tubular ceramic membrane element
The invention discloses a multi-channel tubular ceramic membrane element which comprises a porous support layer and a top-layer membrane layer coating the surface of the porous support body, wherein the top-layer membrane layer is prepared by adopting a method comprising the following steps: (1) preparing a powder body I with a diameter of about 200-300nm; (2) preparing a powder body II with a particle size of 1-2 micrometers; and (3) mixing the powder body I and the powder body II, adding a dispersing agent in the mixed powder body, ball-grinding and mixing to obtain a uniform and stable top-layer membrane suspension slurry, and sintering at a temperature of 1200-1300 DEG C. According to the multi-channel tubular ceramic membrane element, the property of a coating slurry can not be influenced, the continuity of the surface of the membrane can not be damaged and the permeability is not reduced; the multi-channel tubular ceramic membrane element has a function of only forming mutually-discontinuous bulges, and a turbulent flow caused by the bulges ensures that the permeation flow around the turbulent flow is remarkably increased and kept not being attenuated.
Multi-channel tubular ceramic membrane element
GUO TAO (author) / HUANG ZHIFENG (author)
2015-04-08
Patent
Electronic Resource
English
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