Preparation method of laminated filter material

A film-coated filter material and a technology for preparation steps, which are applied in the field of film-coated filter material preparation, can solve the problems of easy generation of static electricity, glass fibers are not resistant to hydrogen fluoride corrosion, etc., and achieve the effects of preventing corrosion and improving the easy generation of static electricity.

Inactive Publication Date: 2017-09-29
常州市瑞泰物资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the existing glass fiber film-coated filter material is prone to static electricity during the weaving process, and the glass fiber is not resistant to hydrogen fluoride corrosion, a preparation method of the film-coated filter material is provided

Method used

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  • Preparation method of laminated filter material

Examples

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example 1

[0017] First select 2kg of blast furnace slag, wash and dry naturally, grind and pass through a 100-mesh sieve to obtain blast furnace slag powder, select 100g of blast furnace slag powder, 10g of sodium carbonate, 6g of Glauber’s salt, 55g of silica sand, 45g of dolomite and 15g of orthopyroxene Put it in a ball mill jar, mill at 250r / min for 3 hours, and pass through a 200-mesh sieve to obtain a mixed ball-milled powder; preheat the mixed ball-milled powder at 150°C for 25 minutes, then raise the temperature to 1500°C at 5°C / min, and keep it warm After melting for 2 hours, it was quenched in deionized water at 20°C for 5 seconds to prepare slag glass. The slag glass was placed in a crucible, drawn with a crucible monofilament furnace, and cooled to room temperature to obtain a slag glass with a diameter of 10 μm matrix glass fiber; select fresh peach gum and wash it, mix the washed peach gum with deionized water according to the mass ratio of 1:10, and after swelling at room ...

example 2

[0019]First select 3kg of blast furnace slag, wash and dry naturally, grind and pass through a 100-mesh sieve to obtain blast furnace slag powder, select 110g of blast furnace slag powder, 13g of sodium carbonate, 7g of Glauber’s salt, 58g of silica sand, 48g of dolomite and 18g of orthopyroxene Place in a ball mill tank, mill at 280r / min for 4 hours, and pass through a 200-mesh sieve to obtain a mixed ball-milled powder; preheat the mixed ball-milled powder at 155°C for 28 minutes, then raise the temperature to 1550°C at a rate of 5°C / min, and keep warm After melting for 3 hours, it was quenched in deionized water at 25°C for 8 seconds to prepare slag glass. 13 μm matrix glass fiber; select fresh peach gum and wash it, mix the washed peach gum with deionized water at a mass ratio of 1:10, and swell at room temperature for 22 hours to obtain a peach gum mixture and place it in a homogenate In the machine, after homogenization treatment at room temperature for 2 hours, a homoge...

example 3

[0021] First select 3kg of blast furnace slag, wash and dry naturally, grind and pass through a 100-mesh sieve to obtain blast furnace slag powder, select 120g of blast furnace slag powder, 15g of sodium carbonate, 8g of Glauber’s salt, 60g of silica sand, 50g of dolomite and 20g of orthopyroxene Place in a ball mill jar, mill at 300r / min for 5 hours, and pass through a 200-mesh sieve to obtain mixed ball-milled powder; preheat the mixed ball-milled powder at 160°C for 30 minutes, then raise the temperature to 1600°C at 5°C / min, and keep warm After melting for 3 hours, it was quenched in deionized water at 30°C for 10 seconds to prepare a slag glass. The slag glass was placed in a crucible, drawn with a crucible monofilament furnace, and cooled to room temperature to obtain a slag glass with a diameter of 15 μm matrix glass fiber; select fresh peach gum and wash it, mix the washed peach gum with deionized water at a mass ratio of 1:10, and swell at room temperature for 24 hours...

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Abstract

The invention relates to a preparation method of a laminated filter material, belonging to the technical field of preparation of filter materials. The preparation method comprises the steps of mixing blast furnace slag, sodium carbonate, silica sand and dolomite, preparing molten glass, carrying out water quenching, carrying out wiredrawing, collecting, preparing glass fibers as a matrix, dispersing fluorite powder into peach gum mixed liquid, loading the surface of the glass fiber matrix with the peach gum mixed liquid, calcining, carrying out carbonization, and curing the peach gum mixed liquid to the surfaces of the glass fibers so as to effectively prevent the corrosion of hydrogen fluoride, simultaneously weaving cloth by virtue of the modified glass fibers, and carrying out hot-press film lamination to effectively bond the cloth with a polytetrafluoroethylene film, so as to obtain the polytetrafluoroethylene laminated filter material. The laminated filter material prepared by virtue of the preparation method has excellent mechanical properties and good static electricity resistance and corrosion resistance.

Description

technical field [0001] The invention relates to a method for preparing a film-coated filter material, which belongs to the technical field of filter material preparation. Background technique [0002] At this stage, thermal power generation is still the main source of electricity, and thermal power generation accounts for about 80% of the total power generation. The rise in the price of other energy sources has prompted most thermal power stations to continue to use coal as the main fuel. In order to meet the requirements of different production processes and achieve the purpose of energy recovery, these dust-containing high-temperature gases need to be dedusted. Before the 21st century, the filter materials were mainly natural fibers such as cotton and wool. The filter materials had defects such as low operating temperature, high moisture absorption rate, and acid resistance. Therefore, except for special requirements, these filter materials are rarely used now. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08D03D15/00D03D13/00C03C13/06C03C25/44
CPCB01D39/086B01D2239/0435B01D2239/0464B01D2239/0471B01D2239/0492B01D2239/0613B01D2239/10C03C13/06C03C25/44D03D13/008D10B2101/06D03D15/267
Inventor 陈刚王艳芹
Owner 常州市瑞泰物资有限公司
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