Hollow fiber ceramic membrane element and component thereof

A technology for ceramic membranes and membrane elements, applied in the field of hollow fiber ceramic membrane elements and their components, can solve the problems of inability to modularize installation, high temperature resistance, strong acid, etc., to simplify connection and assembly, expand application scope, and ensure service life. Effect

Inactive Publication Date: 2008-01-23
JIANGSU JIUWU HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is: to provide a hollow fiber ceramic membrane element suitable for application under various harsh conditions, and on this basis to design a modular hollow fiber ceramic membrane module that is convenient to connect The fiber ceramic membrane packaging method has problems such as high temperature resistance, strong acid, strong alkali and strong corrosive environment; at the same time, it also solves the above-mentioned membrane module assembly method that cannot be modularized, the equipment investment and processing costs per unit membrane area are high, disassembly and It is troublesome to replace

Method used

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  • Hollow fiber ceramic membrane element and component thereof
  • Hollow fiber ceramic membrane element and component thereof
  • Hollow fiber ceramic membrane element and component thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Add 5g of phenolic resin to 100g of alumina powder and 12g of bentonite, mix evenly through high-speed stirring and ultrasonic dispersion, and make packaging materials, and then 35 hollow fibers with a length of 500mm, an outer diameter of 3.5mm, and an inner diameter of 1.5mm One end of the ceramic membrane is packaged on the packaging mold and left to stand for 12 hours to complete the curing of one end of the hollow fiber membrane element, and then repeat the above steps for the other end to complete the curing of the other end.

[0045]The above-cured components were sintered in the kiln at 900°C in an air atmosphere for 1.5 hours, and cooled naturally to obtain a membrane element with an outer diameter of 31mm and a length of 500mm. The membrane element is installed in a membrane casing with an inner diameter of 35mm and a length of 600mm, and the two ends are sealed with end caps to form the final filtration system.

Embodiment 2

[0047] Add 20g of 40% by mass methyl cellulose aqueous solution into 130g of titanium oxide powder, 70g of alumina powder, 4g of kaolin and 1g of magnesia, mix uniformly through high-speed stirring and ultrasonic dispersion, and make an encapsulation material, then 35 hollow fiber ceramic membranes with a length of 250 mm, an outer diameter of 3.5 mm and an inner diameter of 1.5 mm are packaged on the packaging mold, and left to stand for 8 hours to complete the curing of one end of the hollow fiber membrane element, and then repeat the above steps for the other end. Finish curing on the other end.

[0048] The above cured components were sintered in the kiln at 500°C in the air atmosphere for 4 hours, and the temperature was naturally lowered to obtain a membrane element. The outer diameter of the membrane element was 31mm and the length was 250mm.

[0049] Refer to the above method to prepare two identical membrane elements, and then install the three membrane elements in a ...

Embodiment 3

[0051] Add 30g of polyvinyl alcohol aqueous solution with a mass percentage of 15% to 200g of zirconia powder, 50g of titanium oxide powder, 50g of alumina powder, 5g of kaolin and 1g of magnesia, and mix uniformly through high-speed stirring and ultrasonic dispersion to prepare Then, 35 hollow fiber ceramic membranes with a length of 250 mm, an outer diameter of 3.5 mm, and an inner diameter of 1.5 mm are packaged on the packaging mold, and left to stand for 8 hours to complete the curing of one end of the hollow fiber membrane element, and then the other end Repeat the above steps to complete the curing of the other end.

[0052] The above cured components were sintered in the kiln at 970°C in the air atmosphere for 7 hours, and the temperature was naturally lowered to obtain a membrane element. The outer diameter of the membrane element was 31mm and the length was 250mm.

[0053] Refer to the above method to prepare two identical membrane elements, and then install 5 membra...

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Abstract

The invention relates to a hollow fiber ceramic membrane element and component, which adopts package material comprising ceramic powder, binder and agglutinant to pack the two ends of a hollow fiber ceramic membrane tube bank, solidify and sinter to make into membrane element; the hollow fiber ceramic membrane component is composed of a membrane element, a shell and end lids at the two ends, the membrane element also can be arranged in the shell by adopting serial connection way, the two ends are sealed by end lid, the membrane element are connected by a connector. The invention solves that: the hollow fiber ceramic membrane organic polymer end socket can't be used in strict condition of high temperature, strong acid and alkaline and corrosion, can't stand strong acid and alkaline and is easy to break. At the same time, the invention membrane element adopts modularization design, simplifies the connection and assembly of the component, is beneficial for the upsizing of the equipment and reduces the process cost.

Description

technical field [0001] The invention relates to a hollow fiber ceramic membrane element and its assembly, belonging to the field of material processing and membrane separation equipment. Background technique [0002] In recent years, membrane separation, as a new type of high-precision, low-energy separation, concentration, purification and purification technology, has gradually become an important separation process in chemical engineering, food processing, and wastewater treatment. [0003] The separation membranes that have been applied at present are divided into inorganic membranes and organic membranes according to materials. Inorganic membranes have some advantages that organic membranes cannot match: [0004] (1) Good chemical stability, acid resistance, alkali resistance and organic solvent resistance; [0005] (2) High mechanical strength, can withstand external pressure of dozens of atmospheres, and can be reverse flushed; [0006] (3) Strong antimicrobial abili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/08B01D71/02B01D63/02
Inventor 徐南平范益群邢卫红丁晓斌石德付范征
Owner JIANGSU JIUWU HITECH
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