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

A high-throughput external light Fe-Al intermetallic compound filter element and preparation method thereof

An intermetallic compound, high-flux technology, applied in the field of powder metallurgy, can solve the problems of low flux and resistance drop, and achieve the effect of improving filter flux, good air permeability and thin wall thickness

Active Publication Date: 2022-02-15
AT&M ENVIRONMENTAL ENG TECH CO LTD +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] For this reason, the technical problem to be solved by the present invention is to provide a high-flux external light Fe-Al intermetallic compound filter element with high temperature resistance, corrosion resistance, high precision, high flux, low resistance, and low cost, to solve the existing Fe-Al intermetallic compound filter elements in the technology have the problems of low flux and high resistance drop;

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
  • A high-throughput external light Fe-Al intermetallic compound filter element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment is used for pressing the high-throughput external light Fe-Al intermetallic compound filter element, and its filter element size To obtain a Fe-Al intermetallic compound filter element with small pore size, high air permeability and certain strength, the specific preparation method includes:

[0032] Preparation of powder raw materials: sieve and grade the iron and aluminum powder, and select the powder particle size as -150+500 mesh Fe 3 Al powder is the raw material, polyethylene glycol 4000 and polyvinyl alcohol are selected as the binder; powder raw material ratio: 88% -150+500 mesh Fe 3 Al powder+10% polyethylene glycol+2% polyvinyl alcohol;

[0033] Fully dissolve the selected amount of binder in absolute ethanol, and fully mix the iron-aluminum powder with the binder dissolved in absolute ethanol and keep stirring. The mixing temperature is controlled at 80°C and mixed for about 1 hour until Dry with absolute ethanol and mix evenly to obtain mi...

Embodiment 2

[0038] This embodiment is used to press the high-throughput external light Fe-Al intermetallic compound filter element, the filter element size To obtain a Fe-Al intermetallic compound filter element with small pore size, high air permeability and certain strength, the specific preparation method includes:

[0039] The powder is screened and graded, and the particle size of the powder is selected to be -150+500 mesh Fe 3 Al powder is the raw material, polyethylene glycol 4000 and polyvinyl alcohol are selected as the binder, and the ratio of powder raw materials: 88% -150+500 mesh Fe 3 Al powder+10% polyethylene glycol+2% polyvinyl alcohol;

[0040] Fully dissolve the selected amount of binder in absolute ethanol, and fully mix the iron-aluminum powder with the binder dissolved in absolute ethanol and keep stirring. The mixing temperature is controlled at 80°C and mixed for about 1 hour until Dry with absolute ethanol and mix evenly to obtain mixed powder;

[0041] Sieve t...

Embodiment 3

[0045] This embodiment is used to press the high-throughput external light Fe-Al intermetallic compound filter element, the filter element size To obtain a Fe-Al intermetallic compound filter element with small pore size, high air permeability and certain strength, the specific preparation method includes:

[0046] The powder is screened and graded, and the particle size of the powder is selected to be -150+300 mesh Fe 3 Al powder is the raw material, polyethylene glycol is selected as the binder, and the powder raw material ratio: 95% -150+300 mesh Fe 3 Al powder+5% polyethylene glycol;

[0047] Fully dissolve the selected amount of binder in water, and fully mix the iron-aluminum powder with the binder dissolved in absolute ethanol and keep stirring. The mixing temperature is controlled at 100°C, mixed for about 2 hours, and dried until moisture and mix evenly to obtain mixed powder;

[0048] Sieve the uniformly mixed powder with 40 mesh twice, put the uniformly mixed an...

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
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of powder metallurgy, and in particular relates to a high-throughput external light Fe-Al intermetallic compound filter element applied in a low-pressure, high-air volume, high-temperature corrosion atmosphere working condition, and further discloses a preparation method thereof. The high-throughput external light Fe-Al intermetallic compound filter element of the present invention uses finer-grained iron-aluminum powder as a raw material to ensure that the filter element has a smaller aperture; at the same time, the wall thickness of the filter element is reduced from conventional 5-6mm to 2‑3mm to increase the flux of the filter element; and by adding a binder to overcome the defects of high hardness and poor formability of the selected iron-aluminum intermetallic compound powder particles, it can effectively improve the formability of the filter element and increase the porosity of the filter element efficiency, without increasing the pore size, the flux of the filter element is greatly improved, and the filter element is more suitable for use under the conditions of low pressure, high air volume, high temperature and corrosive atmosphere, which can effectively promote high-performance metal filter materials in clean coal. Utilization, high-temperature flue gas dust removal and other energy and environmental protection applications.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy, specifically relates to a high-throughput external light Fe-Al intermetallic compound filter element applied in a low-pressure, high-air volume, and high-temperature corrosive atmosphere, and further discloses a preparation method thereof. Background technique [0002] For a long period of time in the future, fossil energy will still occupy a dominant position in China's energy structure, and my country's primary energy supply will still be dominated by coal. According to the long-term energy strategic plan for 2050, coal should be the main source of development. Diversified clean energy system. According to the degree of coalification, coal can be divided into peat, lignite, bituminous coal and anthracite. At present, my country's proven coal reserves are 724.116Gt, of which lignite accounts for about 14% of the total reserves. Lignite is a coal resource with high volatile content, hig...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/04B22F3/11
CPCB22F3/04B22F3/11
Inventor 杨军军张玉刘冠颖郭辉进张冠文王凡平韶波顾虎
Owner AT&M ENVIRONMENTAL ENG TECH CO LTD
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