Surface material of filter bag, filter bag, flue gas treatment system and treatment method
A technology for flue gas treatment and surface layer material, which is applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of poor versatility of filter bags, and achieve strong acid corrosion resistance, drape and wrinkle resistance improvement, Strong cohesion effect
Active Publication Date: 2020-05-22
CHINA ENFI ENGINEERING CORPORATION
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Problems solved by technology
[0030] The main purpose of the present invention is to provide a filter bag surface material, filter bag, flue gas treatment system and treatment method to solve the problem of poor versatility of filter bags in the prior art
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[0046] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with examples.
[0047] As analyzed in the background technology of this application, the filter bags in the prior art cannot simultaneously have the characteristics of high temperature resistance, acid corrosion resistance, and oxidation resistance, which leads to poor versatility of the existing filter bags. In order to solve this problem, the present application provides a filter bag surface layer material, filter bag, flue gas treatment system and treatment method.
[0048] In a typical embodiment of the present application, a surface layer material of a filter bag is provided, the surface layer material includes organic fibers and inorganic fibers, the organic fibers include polyimide fibers with kidney-shaped cross-section, polyimid...
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Abstract
The invention provides a surface material of a filtering bag, the filtering bag, and a flue gas treatment system and treatment method. The surface material includes organic fibers and inorganic fibers; the organic fibers include kidney-shaped cross section polyimide fibers; the weight percentage content of the kidney-shaped cross section polyimide fibers is 10-80% in the surface material. The kidney-shaped cross section polyimide fibers, the organic fibers and the inorganic fibers are fused together, and then the filtering bag is excellent in high temperature resistance, strong acid corrosionresistance, oxidation resistance, static resistance, flame retardance and high strength. When the weight percentage content of the kidney-shaped cross section polyimide fibers is less than 10%, the advantages of the kidney-shaped cross section polyimide fibers cannot be fully played; but when the weight percentage content of the kidney-shaped cross section polyimide fibers is greater than 80%, thekidney-shaped cross section polyimide fibers are difficult to fuse with the organic fibers and the inorganic fibers, and then the advantages of all the fibers cannot be played.
Description
technical field [0001] The invention relates to the field of separation materials, in particular to a surface layer material of a filter bag, a filter bag, a flue gas treatment system and a treatment method. Background technique [0002] Based on the importance of environmental protection at present, filtering flue gas is a necessary procedure for flue gas treatment. The raw material composition and processing technology of the filter bag used in it determine its performance, and then determine its filtering effect on flue gas. [0003] In the field of high-temperature filter bags, it is generally divided into three categories according to the material: organic fiber filter bags, inorganic fiber filter bags and mixed fiber filter bags. Organic fiber filter bags are mainly composed of chemical synthetic fibers such as polytetrafluoroethylene (PTFE) fibers, polyphenylene sulfide (PPS) fibers, polyimide (PI) fibers, and arylsulfone fibers (PSA). It is mainly composed of glass ...
Claims
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IPC IPC(8): D04H1/4218D04H1/4326D04H1/4342D04H1/4382B01D39/08B01D46/02B32B27/02B32B27/12B32B9/04B32B9/00B32B17/12B32B17/02B32B15/02B32B15/14B32B27/34B32B27/32B32B27/28B32B5/06
Inventor 李谦姚亮魏甲明王金华
Owner CHINA ENFI ENGINEERING CORPORATION