Preparation method of membrane-covered filter material for high-temperature flue gas/dust integrated treatment
A filter material, high temperature flue gas technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation and other directions, can solve the problems of no decomposition effect, non-existence, etc., to achieve simple process, avoid pollution, and simplify the preparation process. Effect
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Embodiment 1
[0039] a. Preparation of high temperature resistant support material
[0040] Adopt conventional needle-punched non-woven processing equipment, 1 kilogram of expanded polytetrafluoroethylene short fibers (fiber diameter 60 microns, fiber porosity 85%, catalyst wherein is the O4-85 of BASF company) that exhaust gas is decomposed , and 0.2 kg of glass staple fiber are processed into needle felt through the processes of opening, mixing, feeding, carding, fiber web, stacking, pre-needling, main needling, etc., and then steamed at a temperature of 105°C to be processed into High temperature resistant support material with a square meter weight of 100 g / square meter;
[0041] b. Preparation of membrane filter material
[0042] The high-temperature-resistant support material and polytetrafluoroethylene microporous film (purchased from Shanghai Lingflon Membrane Technology Co., Ltd., with a micropore diameter of 0.3 microns and a thickness of 5 microns) were mixed at a temperature of...
Embodiment 2
[0045] a. Preparation of high temperature resistant support material
[0046] Adopt conventional needle-punched non-woven fabric processing equipment, will be used for the expanded polytetrafluoroethylene staple fiber (fiber diameter 130 microns, fiber porosity 72%, catalyst wherein is the O4-86 of BASF company) 1 kilogram of exhaust gas decomposition , and 2 kg of polytetrafluoroethylene staple fiber and 2 kg of polyimide staple fiber are processed into needle felt through the processes of opening, mixing, feeding, carding, fiber web, stacking, pre-needling, main needling, etc. , and then steamed at a temperature of 105°C, and processed into a high-temperature-resistant support material with a square meter weight of 200 grams / square meter;
[0047] b. Preparation of membrane filter material
[0048] The high temperature-resistant support material and polytetrafluoroethylene microporous film (purchased from Shanghai Lingfulong Membrane Technology Co., Ltd., with a micropore d...
Embodiment 3
[0051] a. Preparation of high temperature resistant support material
[0052] Adopt conventional needle-punched non-woven fabric processing equipment, the expanded polytetrafluoroethylene short fiber (fiber diameter 250 microns, fiber porosity 68%) that will be used for waste gas decomposition, the catalyst wherein is the titanium / vanadium catalyst that CRI company produces) 1 kg, and 10 kg of polyphenylene sulfide staple fiber are processed into needle-punched felt through the processes of opening, mixing, feeding, carding, fiber web, stacking, pre-needling, main needling, etc., and then processed at 105°C Steaming, processed into a high temperature resistant support material with a square meter weight of 300 g / square meter;
[0053] b. Preparation of membrane filter material
[0054] The high-temperature-resistant support material and polytetrafluoroethylene microporous film (purchased from Shanghai Lingflon Membrane Technology Co., Ltd., with a micropore diameter of 8 micr...
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