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

A preparation method of glass fiber membrane-coated filter material with antistatic denitrification function

A technology of glass fiber and film-coated filter material, which is applied in the direction of separation methods, membrane filters, chemical instruments and methods, etc., can solve the problems of easy generation of static electricity, poor abrasion resistance and folding resistance of glass fiber, and avoid sticky bags, Effect of improving wear resistance and good heat resistance stability

Active Publication Date: 2021-11-16
YANCHENG ENVIRONMENTAL ENG TECH RES & DEV CENT TSINGHUA UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a method for preparing a glass fiber film-coated filter material with antistatic and denitrification functions, so as to solve the shortcomings of the current glass fiber such as poor wear resistance and folding resistance, and easy generation of static electricity by friction. and NH 3 -Ammonia escape in SCR denitrification technology corrodes equipment and realizes NO X Ultra-low emissions, achieving the effect of one thing with multiple uses, one thing with multiple energies, and multi-pollutants coordinated governance

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 preparation method of glass fiber membrane-coated filter material with antistatic denitrification function

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] A preparation method of a glass fiber membrane-coated filter material with antistatic denitrification function, comprising the following steps:

[0026] Step 1. Preparation of denitrification functional composite graphite finishing solution

[0027] 11) Ultrasonic cleaning and vacuum drying of 2000-4000 mesh graphite powder to obtain graphite powder. The graphite powder is immersed in an acid treatment solution with a mass concentration of 15-35% at a mass volume concentration of 50-70g / L. Reflux at 80-90°C for 4-6h, cool to room temperature after the reflux, then wash with deionized water and ethanol several times, dry in vacuum at 70-75°C for 10-12h, and set aside;

[0028] 12) Add the dried product obtained in step 11) to a certain concentration of catalyst solution, heat and stir at 50-60°C until it becomes a gel, then put it in an oven for 10-12 hours at 80-90°C, and finally put it in Roasting at 350-400°C for 2-4 hours in a muffle furnace to obtain denitrificatio...

Embodiment 1

[0040] A preparation method of a glass fiber membrane-coated filter material with antistatic denitrification function, comprising the following steps:

[0041] Step 1, preparing denitrification composite graphite finishing solution

[0042] 11) Ultrasonic cleaning of 2000-4000 mesh graphite powder with deionized water at 35°C for 20 minutes, vacuum drying at 70°C for 2 hours, and immersion of the dried graphite powder into a mass concentration of 15-35 % acid treatment solution, reflux at 80°C for 4h, cool to room temperature after the reflux, then wash with deionized water for 3 times, wash with ethanol for 2 times, vacuum dry at 70°C for 10h, and set aside;

[0043] 12) Add the graphite powder prepared above into the catalyst solution with a certain mass concentration, heat and stir at 60°C until it becomes gelatinous, then put it in an oven for 12 hours at 80°C, and finally put it in a muffle furnace at 400°C Roasting for 2 hours to obtain denitrification functional graphi...

Embodiment 2

[0064] A preparation method of a glass fiber membrane-coated filter material with antistatic denitrification function, comprising the following steps:

[0065] Step 1. Preparation of denitrification composite graphite finishing solution

[0066] 11) Clean the 2000-mesh graphite powder ultrasonically with deionized water at 35°C for 20min, and vacuum-dry it at 70°C for 2h. Take 50g of the dried graphite powder and immerse it in 1L of acetic acid treatment solution with a mass fraction of 15%, at 80°C Reflux for 4 hours, cool to room temperature after the reflux, then wash with deionized water for 3 times, wash with ethanol for 2 times, dry in vacuum at 70°C for 10 hours, and set aside;

[0067] 12) Prepare a mixed solution of copper oxide and cerium oxide precursor nitrate containing 0.1g / ml, take 8ml of the solution and add it to 10g of the pretreated graphite powder in step 11), heat and stir at 60°C until it becomes gelatinous , and then placed in an oven for 12 hours at 80...

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

No PUM Login to View More

Abstract

A method for preparing a glass fiber film-coated filter material with antistatic denitrification function of the present invention, first prepares a composite graphite finishing solution with a denitrification function, then applies the finishing solution to the glass fiber filter material after padding and drying, and puts it on the surface of the glass fiber NO X Catalytic function, antistatic performance coating, and then hot-pressed with polytetrafluoroethylene expanded film to make a dust removal film filter material with both nitrogen oxide removal and antistatic functions. The glass fiber film-coated filter material with antistatic denitrification function of the present invention can not only avoid the sticky bag caused by static electricity, but also effectively reduce the emission of fine dust such as PM2.5, and realize ultra-low emission of smoke and dust. The filter material has catalytic removal of NO in flue gas X Moreover, the combination of the catalyst powder and the filter material is firm, does not affect the inherent performance of the filter material, and is particularly suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of material processing and functional filter material, in particular to a method for preparing a glass fiber membrane-coated filter material with antistatic denitrification function. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. The filter material made of it has high mechanical strength, good corrosion resistance, high tensile strength, good dimensional stability, excellent heat resistance, and can withstand the temperature of 260-280 ° C. The advantage of continuous work is that it is the most widely used filter material in medium and high temperature flue gas dust removal, mainly used in steel, cement, waste incineration, carbon black, metallurgy and other industries. However, the bending and wear resistance of glass fiber is poor, and the friction between glass fibers is easy to generate static electricity, and the static electricity generated...

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): B01D39/02B01D53/56B01D53/90
CPCB01D39/02B01D53/8628B01D53/90B01D2239/02B01D2239/0407B01D2251/2062B01D2255/2065B01D2255/20715B01D2255/20723B01D2255/20738B01D2255/20761
Inventor 陈建军单良李俊华于双江吴芹刘琦王世豪
Owner YANCHENG ENVIRONMENTAL ENG TECH RES & DEV CENT TSINGHUA UNIV
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