Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of non-symmetrical inner wall separation membrane

A separation membrane and asymmetric technology, which is applied in the field of preparation of asymmetric inner wall separation membrane, can solve the problems such as the inability to industrially produce the inner membrane of asymmetric porous filter membrane tubes, and achieve the effect of rapid preparation and wide application range

Active Publication Date: 2014-12-17
陕西云才荣禾材料科技有限公司
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for preparing an asymmetric inner wall separation membrane tube, which can effectively overcome the problem in the prior art that the inner membrane of the asymmetric porous filter membrane tube cannot be industrially produced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of non-symmetrical inner wall separation membrane
  • Preparation method of non-symmetrical inner wall separation membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The selected equipment structure of the present invention is as follows:

[0036] Such as figure 1 As shown, it includes the box body (6) and the workbench (4). The workbench (4) is located on the box body (6) and connected by the cylinder (9). The workbench (4) moves up and down under the drive of the cylinder (9). Reciprocating movement; the side plate is installed next to the workbench (4) parallel to the workbench, the metal sensor (3) is installed on the side plate, the supporting plate (8) is installed on the base of the box; the spray gun (13) is installed on On the support of the workbench, it is perpendicular to the workbench and coaxial with the support plate; the bottom of the asymmetric inner wall separation membrane tube is installed on the support plate (8), and the clamping assembly is located on the workbench (4). The separation membrane tube on the inner wall is fixed, and moves up and down with the worktable under the action of the cylinder, and the...

Embodiment 2

[0047] 1) Weigh a certain quality of stainless steel 304 powder, mix it evenly with the dispersant, and the solid content of the slurry is 25%;

[0048] 2) Add a small amount of defoamer to the powder slurry in step (1) to remove the gas in the powder slurry;

[0049] 3) Put the slurry configured in step (2) into the mixing tank, so that the slurry is in a stirring state. When working, the uniformly mixed slurry is directly supplied to the top of the molding equipment through the action of high-pressure gas—the spray gun (1 );

[0050] 4) In this example, according to the following performance parameters: the length of the prepared inner wall membrane tube is 750mm, the inner diameter of the membrane tube is 60mm, and the thickness of the prepared membrane layer is 25um, adjust the equipment figure 1 According to the working parameters of (1), (8), (9), (10), (11), (12), and (13), adjust the metal sensor (3) on the workbench according to the length of the porous tube matrix. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a non-symmetrical inner wall separation membrane. A fine-hole precision controlling layer is sprayed onto an inner wall of a large-hole-diameter porous metal base tube with a thickness of the fine-hole precision controlling layer being controlled to less than 500 [mu]m and a hole diameter being controlled to less than 10 [mu]m. The preparation method includes following steps: mixing an ultrafine powder with a dispersing agent, having a certain viscosity, to prepare a required slurry according to a certain proportion; adjusting operation parameters of a spraying device according to the diameter of the membrane tube; starting the automatic spraying device; drying the membrane tube in a drying box after the spraying process being finished; and finally performing sintering moulding in a sintering furnace. The method can be used for preparing a step-type non-symmetrical inner wall separation membrane tube or a continuous-gradient non-symmetrical inner wall separation membrane tube. These membrane tubes are high in filtering precision, are good in breathability and are good in back-flushing effect. The method is suitable for industrially large-scale production and can solve actual problems such as poor uniformity of the membrane layer of the inner wall separation membrane tube and a poor bonding strength of the membrane layer to the base tube and the like.

Description

technical field [0001] The invention relates to a metal filter membrane tube and a preparation method thereof, in particular to a preparation method of an asymmetric inner wall separation membrane. Background technique [0002] As an important member of the porous material family, porous metal materials have been widely used in functional fields such as filtration, separation, and fluid distribution in the fields of petrochemical, energy, environmental protection, food, and pharmaceuticals due to their unique properties. It is an indispensable key material to achieve technological breakthroughs. With the rapid development of modern industry, the requirements for the performance of filter materials are getting higher and higher. As the matrix of the filter membrane layer, uniform porous materials can no longer meet the performance requirements of large air permeability and high precision in some departments. Porous materials with asymmetric pore structures, which have attrac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D67/00B01D71/02B01D69/04
Inventor 孟宪涛刘忠军冯佳
Owner 陕西云才荣禾材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com