CN105642019A - High-temperature dust-removing filter material and preparation method thereof - Google Patents
High-temperature dust-removing filter material and preparation method thereof Download PDFInfo
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- CN105642019A CN105642019A CN201610202647.1A CN201610202647A CN105642019A CN 105642019 A CN105642019 A CN 105642019A CN 201610202647 A CN201610202647 A CN 201610202647A CN 105642019 A CN105642019 A CN 105642019A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
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Abstract
The invention discloses high-temperature dust-removing filter material and a preparation method thereof. The high-temperature dust-removing filter material is characterized by comprising a metal fiber felt layer, a PTFE membrane layer and a PPS fiber layer which are sequentially arranged. The PTFE membrane layer is adhered to the metal fiber layer through an adhesive-free hot pressing technology. The PPS fiber layer is tangled with the PTFE membrane layer through a spunlace process. The high-temperature dust-removing filter material has the advantages that the metal fiber layer is used as the windward side of the filter material to effectively increase the high temperature resistance of the filter material, the composite structure of the metal fiber felt layer, the PTFE membrane layer and the PPS fiber layer allows the filter material to be good in filter efficiency and tearing resistance, high temperature delay can be filtered effectively, and long service life is achieved.
Description
Technical field
The present invention relates to technical field of industrial dust removal, particularly relate to a kind of high-temperature dust removal filtrate and preparation method thereof.
Background technology
Current China economy has been enter into the high speed development stage, quickly grows based on the heavy industry of resource, energy resource consumption. These industries develop rapidly while bringing economic development to society, also bring serious problem of environmental pollution, and main manifestations is the discharge of the atmosphere pollution such as high-temperature flue gas, flue dust class particulate matter.
Sack cleaner is one of equipment of high-temperature flue gas purification filtration, and it can effectively remove dust, and can catch dust of different nature, to reach to be effectively improved the purpose of environment. Filtrate is the critical material of sack cleaner, high-temperature dust removal filtrate common in the market has polyphenylene sulfide (PPS) fiber needled felt, polyimides (P84) fiber needled felt, polytetrafluoroethylene (PTFE) fiber needled felt, a glass fibre filtrate etc., but these high-temperature dust removal filtrates still cannot more than 300 DEG C continuous firings again.
In order to be filtrate can in the working environment of higher temperature continuous firing, recent people have done a lot of research and experiment, for instance:
Chinese patent CN201110199266.X " composite filtering material of a kind of high-temperature flue gas bag-type dust removing system and preparation method thereof ", this invention adopts and arranges one layer of dust-collecting face being made up of PSA fiber and aramid fiber composite fibre on PSA fiber with the upper surface of the base fabric of aramid fiber scribbled weaving, the lower surface of base fabric arranges one layer of bottom being made up of PSA fiber and aramid fiber composite fibre, make the method for composite filtering material and improve its resistance to elevated temperatures by closing thorn between dust-collecting face, base fabric and bottom, but filtrate still can only under 240 ~ 280 DEG C of environment continuous firing.
Research purpose of the present invention be in that to provide a kind of can under higher temperature environment the filtrate of continuous firing.
Summary of the invention
In view of the foregoing, it is an object to provide a kind of high-temperature dust removal filtrate and preparation method thereof, solve prior art Problems existing.
The present invention adopts the following technical scheme that
A kind of high-temperature dust removal filtrate and preparation method thereof, it is characterized in that, metallic fiber carpet veneer that this high-temperature dust removal filtrate includes being arranged in order, PTFE film layer, PPS fibrous layer, described PTFE film layer is by glue-free hot-pressing technique and the bonding of described metallic fibrous layer, described PPS fibrous layer is tangled with described PTFE thin layer by water jet process, and its concrete production technology is as follows:
1) preparation of metal fiber felt: adopt melt spinning method to manufacture metal fiber wire, metal contained by described metal fiber wire includes the magnesium of 0.50 ~ 1.20wt%, the manganese of 1.80 ~ 2.30wt%, the titanium of 0.05 ~ 0.15wt%, all the other are aluminum and impurity (ferrum, copper, zinc etc.), wherein impurity should less than 0.80wt%, and described metallic fiber filament diameter is 1 ~ 3 ��m, and length is 1 ~ 2m;Metal fiber wire is paved through nonwoven, folded join after make metal fiber felt through 1680 ~ 1750 DEG C of high temperature sinterings, described metal fiber felt thickness is 0.50 ~ 1.50mm;
2) hot pressing PTFE film on metal fiber felt: control technology by electromagnetic heating technique and PID and PTFE film is bonded in metal fiber felt surface, wherein said PTFE film is by making PTFE resin through molding sintering, cooling, cutting, calendering, and described PTFE film thickness is 0.50 ~ 0.80mm;
3) the fibrolaminar preparation of PPS: thin PPS fibrous layer that described PPS fibrous layer includes being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer, described thin PPS fibrous layer is logical to be obtained after thin PPS fiber opening mixing, combing, lapping, the described fibrolaminar thickness of thin PPS is 0.3 ~ 0.4mm, and wherein said thin PPS fiber dimensious is 2.0 ~ 2.2dtex �� 51mm; In described thick PPS fibrous layer logical by obtain after the thick mixing of PPS fiber opening, combing, lapping, in described, the thick fibrolaminar thickness of PPS is 0.4 ~ 0.5mm, and in wherein said, thick PPS fiber dimensious is 2.5 ~ 2.8dtex �� 51mm; Described thick PPS fibrous layer is logical to be obtained after thick PPS fiber opening mixing, combing, lapping, and the described fibrolaminar thickness of thick PPS is 0.5 ~ 0.6mm, and wherein said thick PPS fiber dimensious is 3.0 ~ 3.2dtex �� 51mm; By the described thin PPS fibrous layer being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer carry out needling process process;
4) water jet process: the described metal fiber felt bonded with described PTFE film and PPS fibrous layer carrying out water jet process process and obtains half-finished high-temperature dust removal filtrate, wherein said PTFE film contacts with described thin PPS fibrous layer;
5) drying: dried by oven drying at low temperature equipment by half-finished high-temperature dust removal filtrate, it dries temperature lower than 50 DEG C;
6) rolling: the half-finished high-temperature dust removal filtrate after drying is passed through lapper clot, obtains the high-temperature dust removal filtrate of finished product.
The present invention provides a kind of high-temperature dust removal filtrate and preparation method thereof, it is preferable that the pricker model that described needling process adopts is No. 25, depth of needling is 3 ~ 5mm, punch frequency is 600 ~ 650 times/min, and bestock is 1200 ~ 1500 pieces/m, and output speed is 2m/min.
The present invention provides a kind of high-temperature dust removal filtrate and preparation method thereof, it is preferable that described water jet process adopts 8 water jets, and spun lacing pressure is 65 ~ 85Bar, and the spun lacing pressure of described 8 water jets presses low �� height �� low setting.
The present invention provides a kind of high-temperature dust removal filtrate and preparation method thereof, it is preferable that wherein step 1) and step 3) can carry out simultaneously.
The present invention provides a kind of high-temperature dust removal filtrate and preparation method thereof, it is preferable that step 2) processing temperature be 350 ~ 400 DEG C.
Advantages of the present invention and having the beneficial effect that
1. the present invention is by using the metallic fibrous layer windward side as internal layer, this filtrate is made to have good high temperature resistant character, use temperature up to 320 DEG C continuously, maximum operating temperature is up to more than 450 DEG C, adopt the alloy based on aluminum, there is good ductility and pliability, aluminum is as the active metal of character, can at the aluminum oxide film of Surface Creation densification, there is splendid antiacid caustic corrosion performance, add a small amount of titanium in the alloy so that it is there is pliability more preferably, not easy fracture, long service life;
2. the present invention bonds one layer of PTFE film by electromagnetic heating technique and PID control technology on metallic fibrous layer, PTFE film has good strainability, anti acid alkali performance, non-oxidizability, resistance to elevated temperatures is better, the second layer as this filtrate, filtration can be made finer, and can effectively filter can through the dust of metallic fibrous layer;
3. outer layer of the present invention is PPS fibrous layer, PPS fiber price is relatively low, supporting layer as outer layer can reduce production cost, three layers PPS fibrous layer fiber string diameter from the inside to the outside is incremented by, the structure of such gradient can be effectively improved the filtrate impact resistant power to air-flow, increase filtration velocity, reduce pressure drop, reverse deashing can be made simple and convenient;
4. the three layers PPS fibrous layer of the present invention by needling process carry out processed after be connected with PTFE film layer again through water jet process, the pretreatment of needling process can save production cost, follow-up water jet process has fibrillation effect, can be effectively improved the filtering accuracy of PTFE film.
Detailed description of the invention
The present invention will be further described in conjunction with the embodiments.
Embodiment one:
A kind of high-temperature dust removal filtrate and preparation method thereof, it is characterized in that, metallic fiber carpet veneer that this high-temperature dust removal filtrate includes being arranged in order, PTFE film layer, PPS fibrous layer, described PTFE film layer is by glue-free hot-pressing technique and the bonding of described metallic fibrous layer, described PPS fibrous layer is tangled with described PTFE thin layer by water jet process, and its concrete production technology is as follows:
1) preparation of metal fiber felt: adopt melt spinning method to manufacture metal fiber wire, metal contained by described metal fiber wire includes the magnesium of 1.20wt%, the manganese of 2.30wt%, the titanium of 0.15wt%, all the other are aluminum and impurity (ferrum, copper, zinc etc.), wherein impurity should less than 0.80wt%, and described metallic fiber filament diameter is 2 ��m, and length is 1.5m; Metal fiber wire is paved through nonwoven, folded join after make metal fiber felt through 1700 DEG C of high temperature sinterings, described metal fiber felt thickness is 0.50mm;
2) hot pressing PTFE film on metal fiber felt: control technology by electromagnetic heating technique and PID and PTFE film is bonded in metal fiber felt surface, wherein said PTFE film is by making PTFE resin through molding sintering, cooling, cutting, calendering, and described PTFE film thickness is 0.50mm;
3) the fibrolaminar preparation of PPS: thin PPS fibrous layer that described PPS fibrous layer includes being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer, described thin PPS fibrous layer is logical to be obtained after thin PPS fiber opening mixing, combing, lapping, the described fibrolaminar thickness of thin PPS is 0.3mm, and wherein said thin PPS fiber dimensious is 2.0dtex �� 51mm; In described thick PPS fibrous layer logical by obtain after the thick mixing of PPS fiber opening, combing, lapping, in described, the thick fibrolaminar thickness of PPS is 0.4mm, and in wherein said, thick PPS fiber dimensious is 2.5dtex �� 51mm; Described thick PPS fibrous layer is logical to be obtained after thick PPS fiber opening mixing, combing, lapping, and the described fibrolaminar thickness of thick PPS is 0.5mm, and wherein said thick PPS fiber dimensious is 3.0dtex �� 51mm; By the described thin PPS fibrous layer being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer carry out needling process process;
4) water jet process: the described metal fiber felt bonded with described PTFE film and PPS fibrous layer carrying out water jet process process and obtains half-finished high-temperature dust removal filtrate, wherein said PTFE film contacts with described thin PPS fibrous layer;
5) drying: dried by oven drying at low temperature equipment by half-finished high-temperature dust removal filtrate, it dries temperature is 45 DEG C;
6) rolling: the half-finished high-temperature dust removal filtrate after drying is passed through lapper clot, obtains the high-temperature dust removal filtrate of finished product.
The pricker model that described needling process adopts is No. 25, depth of needling is 3mm, punch frequency is 650 times/min, bestock is 1500 pieces/m, output speed is 2m/min, described water jet process adopts 8 water jets, spun lacing pressure is 65 ~ 85Bar, the spun lacing pressure of described 8 water jets presses low �� height �� low setting, respectively 65Bar, 70Bar, 75Bar, 80Bar, 85Bar, 80Bar, 75Bar, 70Bar, wherein step 1) and step 3) can carry out simultaneously, step 2) processing temperature be 400 DEG C.
Embodiment two:
A kind of high-temperature dust removal filtrate and preparation method thereof, it is characterized in that, metallic fiber carpet veneer that this high-temperature dust removal filtrate includes being arranged in order, PTFE film layer, PPS fibrous layer, described PTFE film layer is by glue-free hot-pressing technique and the bonding of described metallic fibrous layer, described PPS fibrous layer is tangled with described PTFE thin layer by water jet process, and its concrete production technology is as follows:
1) preparation of metal fiber felt: adopt melt spinning method to manufacture metal fiber wire, metal contained by described metal fiber wire includes the magnesium of 1.20wt%, the manganese of 2.30wt%, the titanium of 0.15wt%, all the other are aluminum and impurity (ferrum, copper, zinc etc.), wherein impurity should less than 0.80wt%, and described metallic fiber filament diameter is 2 ��m, and length is 1.5m; Metal fiber wire is paved through nonwoven, folded join after make metal fiber felt through 1700 DEG C of high temperature sinterings, described metal fiber felt thickness is 1.00mm;
2) hot pressing PTFE film on metal fiber felt: control technology by electromagnetic heating technique and PID and PTFE film is bonded in metal fiber felt surface, wherein said PTFE film is by making PTFE resin through molding sintering, cooling, cutting, calendering, and described PTFE film thickness is 0.65mm;
3) the fibrolaminar preparation of PPS: thin PPS fibrous layer that described PPS fibrous layer includes being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer, described thin PPS fibrous layer is logical to be obtained after thin PPS fiber opening mixing, combing, lapping, the described fibrolaminar thickness of thin PPS is 0.35mm, and wherein said thin PPS fiber dimensious is 2.0dtex �� 51mm; In described thick PPS fibrous layer logical by obtain after the thick mixing of PPS fiber opening, combing, lapping, in described, the thick fibrolaminar thickness of PPS is 0.45mm, and in wherein said, thick PPS fiber dimensious is 2.5dtex �� 51mm; Described thick PPS fibrous layer is logical to be obtained after thick PPS fiber opening mixing, combing, lapping, and the described fibrolaminar thickness of thick PPS is 0.55mm, and wherein said thick PPS fiber dimensious is 3.0dtex �� 51mm; By the described thin PPS fibrous layer being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer carry out needling process process;
4) water jet process: the described metal fiber felt bonded with described PTFE film and PPS fibrous layer carrying out water jet process process and obtains half-finished high-temperature dust removal filtrate, wherein said PTFE film contacts with described thin PPS fibrous layer;
5) drying: dried by oven drying at low temperature equipment by half-finished high-temperature dust removal filtrate, it dries temperature is 45 DEG C;
6) rolling: the half-finished high-temperature dust removal filtrate after drying is passed through lapper clot, obtains the high-temperature dust removal filtrate of finished product.
The pricker model that described needling process adopts is No. 25, depth of needling is 3mm, punch frequency is 650 times/min, bestock is 1500 pieces/m, output speed is 2m/min, described water jet process adopts 8 water jets, spun lacing pressure is 65 ~ 85Bar, the spun lacing pressure of described 8 water jets presses low �� height �� low setting, respectively 65Bar, 70Bar, 75Bar, 80Bar, 85Bar, 80Bar, 75Bar, 70Bar, wherein step 1) and step 3) can carry out simultaneously, step 2) processing temperature be 400 DEG C.
Embodiment three:
A kind of high-temperature dust removal filtrate and preparation method thereof, it is characterized in that, metallic fiber carpet veneer that this high-temperature dust removal filtrate includes being arranged in order, PTFE film layer, PPS fibrous layer, described PTFE film layer is by glue-free hot-pressing technique and the bonding of described metallic fibrous layer, described PPS fibrous layer is tangled with described PTFE thin layer by water jet process, and its concrete production technology is as follows:
1) preparation of metal fiber felt: adopt melt spinning method to manufacture metal fiber wire, metal contained by described metal fiber wire includes the magnesium of 1.20wt%, the manganese of 2.30wt%, the titanium of 0.15wt%, all the other are aluminum and impurity (ferrum, copper, zinc etc.), wherein impurity should less than 0.80wt%, and described metallic fiber filament diameter is 2 ��m, and length is 1.5m;Metal fiber wire is paved through nonwoven, folded join after make metal fiber felt through 1700 DEG C of high temperature sinterings, described metal fiber felt thickness is 1.50mm;
2) hot pressing PTFE film on metal fiber felt: control technology by electromagnetic heating technique and PID and PTFE film is bonded in metal fiber felt surface, wherein said PTFE film is by making PTFE resin through molding sintering, cooling, cutting, calendering, and described PTFE film thickness is 0.80mm;
3) the fibrolaminar preparation of PPS: thin PPS fibrous layer that described PPS fibrous layer includes being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer, described thin PPS fibrous layer is logical to be obtained after thin PPS fiber opening mixing, combing, lapping, the described fibrolaminar thickness of thin PPS is 0.4mm, and wherein said thin PPS fiber dimensious is 2.0dtex �� 51mm; In described thick PPS fibrous layer logical by obtain after the thick mixing of PPS fiber opening, combing, lapping, in described, the thick fibrolaminar thickness of PPS is 0.5mm, and in wherein said, thick PPS fiber dimensious is 2.5dtex �� 51mm; Described thick PPS fibrous layer is logical to be obtained after thick PPS fiber opening mixing, combing, lapping, and the described fibrolaminar thickness of thick PPS is 0.6mm, and wherein said thick PPS fiber dimensious is 3.0dtex �� 51mm; By the described thin PPS fibrous layer being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer carry out needling process process;
4) water jet process: the described metal fiber felt bonded with described PTFE film and PPS fibrous layer carrying out water jet process process and obtains half-finished high-temperature dust removal filtrate, wherein said PTFE film contacts with described thin PPS fibrous layer;
5) drying: dried by oven drying at low temperature equipment by half-finished high-temperature dust removal filtrate, it dries temperature is 45 DEG C;
6) rolling: the half-finished high-temperature dust removal filtrate after drying is passed through lapper clot, obtains the high-temperature dust removal filtrate of finished product.
The pricker model that described needling process adopts is No. 25, depth of needling is 3mm, punch frequency is 650 times/min, bestock is 1500 pieces/m, output speed is 2m/min, described water jet process adopts 8 water jets, spun lacing pressure is 65 ~ 85Bar, the spun lacing pressure of described 8 water jets presses low �� height �� low setting, respectively 65Bar, 70Bar, 75Bar, 80Bar, 85Bar, 80Bar, 75Bar, 70Bar, wherein step 1) and step 3) can carry out simultaneously, step 2) processing temperature be 400 DEG C.
Filtrate described in three embodiments is tested by imported electronic fabric strength tester its ultimate strength and elongation at break, by its filter efficiency of filtrate testing board, use heat distortion temperature test method(s) to test its sustained service temperature and instantaneous operative temperature, and test its resistance to acids and bases and non-oxidizability.
It is below the test data contrast with three kinds of conventional filtrate parameters of three embodiments:
Data in contrast table, this high-temperature dust removal filtrate has excellent performance, while there is excellent filter efficiency same with common high-temperature filter material, there is better resistance to elevated temperatures, working environment at higher temperature can be adapted to, this high-temperature dust removal filtrate also has good tear resistance, resistance to acids and bases and non-oxidizability, has longer service life.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; it is not limited to the present invention; although the present invention being described in detail with reference to previous embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent replacement; all within the spirit and principles in the present invention; any amendment of being made, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (7)
1. high-temperature dust removal filtrate and preparation method thereof, it is characterized in that, metallic fiber carpet veneer that this high-temperature dust removal filtrate includes being arranged in order, PTFE film layer, PPS fibrous layer, described PTFE film layer is by glue-free hot-pressing technique and the bonding of described metallic fibrous layer, described PPS fibrous layer is tangled with described PTFE thin layer by water jet process, and its concrete production technology is as follows:
The preparation of metal fiber felt: adopt melt spinning method to manufacture metal fiber wire, metal contained by described metal fiber wire includes the magnesium of 0.50 ~ 1.20wt%, the manganese of 1.80 ~ 2.30wt%, the titanium of 0.05 ~ 0.15wt%, all the other are aluminum and impurity (ferrum, copper, zinc etc.), wherein impurity should less than 0.80wt%, and described metallic fiber filament diameter is 1 ~ 3 ��m, and length is 1 ~ 2m; Metal fiber wire is paved through nonwoven, folded join after make metal fiber felt through 1680 ~ 1750 DEG C of high temperature sinterings, described metal fiber felt thickness is 0.50 ~ 1.50mm;
Hot pressing PTFE film on metal fiber felt: control technology by electromagnetic heating technique and PID and PTFE film is bonded in metal fiber felt surface, wherein said PTFE film is by making PTFE resin through molding sintering, cooling, cutting, calendering, and described PTFE film thickness is 0.50 ~ 0.80mm;
The fibrolaminar preparation of PPS: thin PPS fibrous layer that described PPS fibrous layer includes being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer, described thin PPS fibrous layer is logical to be obtained after thin PPS fiber opening mixing, combing, lapping, the described fibrolaminar thickness of thin PPS is 0.3 ~ 0.4mm, and wherein said thin PPS fiber dimensious is 2.0 ~ 2.2dtex �� 51mm; In described thick PPS fibrous layer logical by obtain after the thick mixing of PPS fiber opening, combing, lapping, in described, the thick fibrolaminar thickness of PPS is 0.4 ~ 0.5mm, and in wherein said, thick PPS fiber dimensious is 2.5 ~ 2.8dtex �� 51mm; Described thick PPS fibrous layer is logical to be obtained after thick PPS fiber opening mixing, combing, lapping, and the described fibrolaminar thickness of thick PPS is 0.5 ~ 0.6mm, and wherein said thick PPS fiber dimensious is 3.0 ~ 3.2dtex �� 51mm; By the described thin PPS fibrous layer being arranged in order, in thick PPS fibrous layer, thick PPS fibrous layer carry out needling process process;
Water jet process: the described metal fiber felt bonded with described PTFE film and PPS fibrous layer carrying out water jet process process and obtains half-finished high-temperature dust removal filtrate, wherein said PTFE film contacts with described thin PPS fibrous layer.
2. drying: dried by oven drying at low temperature equipment by half-finished high-temperature dust removal filtrate, it dries temperature lower than 50 DEG C.
3. rolling: the half-finished high-temperature dust removal filtrate after drying is passed through lapper clot, obtains the high-temperature dust removal filtrate of finished product.
4. a kind of high-temperature dust removal filtrate according to claim 1 and preparation method thereof, it is characterized in that: the pricker model that described needling process adopts is No. 25, and depth of needling is 3 ~ 5mm, and punch frequency is 600 ~ 650 times/min, bestock is 1200 ~ 1500 pieces/m, and output speed is 2m/min.
5. a kind of high-temperature dust removal filtrate according to claim 1 and preparation method thereof, it is characterised in that: described water jet process adopts 8 water jets, and spun lacing pressure is 65 ~ 85Bar, and the spun lacing pressure of described 8 water jets presses low �� height �� low setting.
6. a kind of high-temperature dust removal filtrate according to claim 1 and preparation method thereof, it is characterised in that: wherein step 1) and step 3) can carry out simultaneously.
7. a kind of a kind of high-temperature dust removal filtrate according to claim 1 and preparation method thereof, it is characterised in that: step 2) processing temperature be 350 ~ 400 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108704388A (en) * | 2018-06-25 | 2018-10-26 | 中山市绿浪助剂有限公司 | Polytetrafluoroethylene felt and preparation method thereof |
| CN110711431A (en) * | 2019-09-30 | 2020-01-21 | 厦门保瑞达环保科技有限公司 | Non-woven metal fiber filter felt, preparation method thereof and filter |
| WO2020016240A1 (en) * | 2018-07-17 | 2020-01-23 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Network of metal fibers, method for producing a network of metal fibers, electrode and battery |
| CN113786676A (en) * | 2021-10-09 | 2021-12-14 | 安徽元琛环保科技股份有限公司 | Dust-removing and dioxin-removing difunctional metal filter material and preparation method thereof |
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2016
- 2016-03-31 CN CN201610202647.1A patent/CN105642019A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704388A (en) * | 2018-06-25 | 2018-10-26 | 中山市绿浪助剂有限公司 | Polytetrafluoroethylene felt and preparation method thereof |
| WO2020016240A1 (en) * | 2018-07-17 | 2020-01-23 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Network of metal fibers, method for producing a network of metal fibers, electrode and battery |
| CN112740444A (en) * | 2018-07-17 | 2021-04-30 | 马克思-普朗克科学促进协会 | Network of metal fibers, method of producing a network of metal fibers, electrode and battery |
| EP4224545A3 (en) * | 2018-07-17 | 2024-07-17 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Network of metal fibers, method for producing a network of metal fibers, electrode and battery |
| CN110711431A (en) * | 2019-09-30 | 2020-01-21 | 厦门保瑞达环保科技有限公司 | Non-woven metal fiber filter felt, preparation method thereof and filter |
| CN110711431B (en) * | 2019-09-30 | 2021-08-17 | 厦门保瑞达环保科技有限公司 | Non-woven metal fiber filter felt, preparation method thereof and filter |
| CN113786676A (en) * | 2021-10-09 | 2021-12-14 | 安徽元琛环保科技股份有限公司 | Dust-removing and dioxin-removing difunctional metal filter material and preparation method thereof |
| CN113786676B (en) * | 2021-10-09 | 2023-10-31 | 安徽元琛环保科技股份有限公司 | Dust-removing dioxin-removing difunctional metal filter material and preparation method thereof |
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