Specific composite filter material for coal-fired power plant electric bag integration project

A composite filter material, a technology for coal-fired power plants, applied in filtration separation, combined device, dispersed particle separation, etc., can solve the problems of decreased strength of PPS filter material, inability to achieve service life, unfavorable wide-scale promotion, etc. Ashing capacity and corrosion resistance, improving service life, and improving the effect of cleaning capacity
CN101804273AInactive Publication Date: 2010-08-18NANJING JIHUA 3521 SPECIAL EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING JIHUA 3521 SPECIAL EQUIP
Publication Date
2010-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a specific composite filter material for a coal-fired power plant electric bag integration project; the composite filter material comprises base cloth, a dust facing surface and a bottom layer; the dust facing surface is arranged on the upper surface of the base cloth; the bottom layer is arranged on the lower surface of the base cloth; the dust facing surface is mixedly blended from PTFE fibers and PPS fibers, wherein the weight proportion of the PTFE fibers is 30 to 70 percent; the base cloth is interwoven from 100 percent PTFE long filaments in the longitudinal and latitude directions; and the bottom layer is mixedly blended from the PTFE fibers and the PPS fibers, wherein the weight proportion of the PTFE fibers is 30 to 70 percent. The fibers tangle through an acupuncture and spunlace composite process to form a plain blanket which is soaked into chemical solvent, so as to further improve the corrosion resistance and chemical performance resistance. The specific composite filter material for the coal-fired power plant electric bag integration project has smooth surface, improves the dust removing capability, reduces the operation resistance of equipment, prolongs the service life, can ensure the use for 35000h in the electric bag integration project, and is applicable to the coal-fired power plant electric bag integration project.
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Description

technical field

[0001] The invention relates to a filter material, in particular to a special composite filter material for coal-fired power plant electric bag combination project. Background technique

[0002] At present, in the field of flue gas bag dust removal in coal-fired power plants, PPS needle-punched filter materials are widely used due to their good temperature resistance, withstanding temperatures of 140-190°C, and strong acid and alkali corrosion resistance, but their biggest disadvantages are Poor oxidation and corrosion resistance limits its application in electric bag bonding projects.

[0003] For the electric bag combination project of coal-fired power plants, the combination of electric dust removal and bag dust removal is used. Corona discharge will generate ozone, which is very unstable. It is easy to react quickly with other components in the flue gas at high temperature and certain humidity, especially Yes and NO, SO 2 The reaction produces SO 3 , N...

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
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