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

Novel high-efficiency metal composite filter element and preparation method thereof

A metal composite and filter element technology, applied in filtration separation, separation methods, chemical instruments and methods, etc., can solve the problems of low structural strength, inconvenient regeneration and cleaning, poor surface quality, etc., and achieve good surface quality and convenient regeneration and cleaning. , the effect of large permeability coefficient

Active Publication Date: 2011-11-30
CHINA PETROLEUM & CHEM CORP +3
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Metal composite filter elements in the prior art generally have disadvantages such as low structural strength, low permeability coefficient, poor surface quality, and inconvenient regeneration and cleaning.

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
  • Novel high-efficiency metal composite filter element and preparation method thereof
  • Novel high-efficiency metal composite filter element and preparation method thereof
  • Novel high-efficiency metal composite filter element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Use a 1mm thick wire mesh 1 to mix uniformly with stainless steel powder with an average particle size of 150μm, and press it into a tubular shape by cold isostatic pressing, with a pressing pressure of 200MPa, and sinter in a hydrogen atmosphere at 1250°C for 4 hours to obtain a wire mesh reinforced sintered metal matrix 2. Mix 50 parts by weight of stainless steel powder with an average particle diameter of 2 μm, and 50 parts by weight of carrier polyethylene glycol to prepare a suspension. The suspension is deposited layer by layer on the outside of the stainless steel filter tube by centrifugal spraying to form a metal film layer 3 . Under the hydrogen atmosphere, the sintering temperature of the composite filter tube was 1100° C., and the temperature was kept for 3 hours to obtain a screen-reinforced sintered metal composite filter element.

Embodiment 2

[0025] Example 2: Use 1mm thick wire mesh and 100μm ~ 200μm stainless steel powder to evenly mix, use cold isostatic pressing to press into sheet shape, press pressure 200MPa, and sinter in a hydrogen atmosphere at 1250°C for 4 hours to obtain the wire mesh reinforcement sintering metal substrate. Mix 50 parts by weight of stainless steel powder with an average particle diameter of 2 μm, and 50 parts by weight of carrier polyethanol to prepare a suspension. The suspension is deposited on one side of the stainless steel filter layer by layer by centrifugal spraying. In a hydrogen atmosphere, the composite filter was sintered at 1100° C. and held for 3 hours to obtain a screen-reinforced sintered metal composite filter element.

Embodiment 3

[0031] Example 3: A 2mm copper wire mesh is uniformly mixed with 200μm-300μm copper metal powder, pressed into a tubular shape by cold isostatic pressing, the pressing pressure is 300MPa, and the wire mesh reinforced sintered metal matrix is ​​obtained after sintering at 1350°C for 5 hours in a hydrogen atmosphere . Mix 50 parts by weight of molybdenum metal powder with an average particle diameter of 5 μm, and 100 parts by weight of carrier polyethylene glycol to prepare a suspension. The suspension is deposited layer by layer on the outside of the stainless steel filter tube by centrifugal spraying. Sintering in a hydrogen atmosphere, the sintering temperature is 1200 ° C, and the temperature is kept for 3 hours, and the deposited layer is sintered to form a film.

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
Wire diameteraaaaaaaaaa
Granularityaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a novel high-efficiency metal composite filter component. The filter component provided by the invention is characterized by comprising a substrate and a metal film layer attached to the surface of the substrate, wherein the substrate comprises a metal substrate and a metal wire net; the metal substrate is molded by pressing and sintering metal powder; the metal wire net is embedded into the metal substrate; the wire diameter of the metal wire net is 0.5-2mm; the particle size range of the metal powder is 50-300mu m; the thickness of the substrate is 2.0-3.5mm; and the thickness of the metal film layer is 0.1-0.2mm. Compared with the prior art, the metal porous component provided by the invention has the advantages of high osmotic coefficients and ideal particle size range; and the metal filter component prepared by utilizing the invention has the advantages of high bonding strength, large osmotic coefficients, good surface quality, convenience in regeneration and cleaning, simplicity in process and good repeatability and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the field of filter elements, in particular to a novel high-efficiency metal composite filter element and a preparation method thereof. Background technique [0002] Metal composite membrane filtration technology is a new type of technology that has emerged in the field of filtration and separation in recent years. This technology uses different technical means to prepare metal film layers on the surface of different types of substrates to achieve high-precision and high-efficiency filtration. In recent years, a lot of research has been done on metal membrane filter materials at home and abroad, and some progress has been made. [0003] The Chinese patent application with the publication number CN1843597 discloses "A Novel Metal Filter Membrane and Its Preparation Method". It is made by sintering on the alloy porous base belt or the sponge-like base belt skeleton. The base body is a porous metal material rolled into a thin and...

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): B01D29/11
Inventor 赵斌义吴引江杨俊岭段庆文于素艳周济段新群南海娟关桂苹吴天平
Owner CHINA PETROLEUM & CHEM CORP
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