CN102824784A - Porous ceramic filtration device for suction vehicle and double-pressure feeding vehicle - Google Patents
Porous ceramic filtration device for suction vehicle and double-pressure feeding vehicle Download PDFInfo
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- CN102824784A CN102824784A CN2012103017467A CN201210301746A CN102824784A CN 102824784 A CN102824784 A CN 102824784A CN 2012103017467 A CN2012103017467 A CN 2012103017467A CN 201210301746 A CN201210301746 A CN 201210301746A CN 102824784 A CN102824784 A CN 102824784A
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Abstract
The invention provides a porous ceramic filtration device for a suction vehicle and a double-pressure feeding vehicle. The porous ceramic filtration device comprises an upper support plate and a lower support plate. A cavity is formed between the upper support plate and the lower support plate. Edges of the upper support plate and the lower support plate have dismountable sealing structures. Multiple division plates are arranged in the cavity between the upper support plate and the lower support plate and divide the cavity into multiple independent spaces. A porous ceramic filter is arranged in each one of the multiple independent spaces. The surface of the upper support plate has a netty breathable structure and meshes of the netty breathable structure are smaller than the outlines of the porous ceramic filters. The porous ceramic filtration device has high compression strength and good high-temperature resistance, prevents suction vehicle bonding caused by a high temperature in suction, is conducive to ash removal and filtration material replacement in practical application, is convenient for installation and improves a service life.
Description
Technical field
The present invention relates generally to suction car and two force feed car filters, refers more particularly to a kind of porous ceramics filter that is used for suction car and two force feed cars.
Background technology
Porous ceramics be a kind of be aggregate with the refractory raw material, be equipped with process high temperature sinterings such as bond and the ceramic filter material processed, its inside configuration has the fine pores of the controllable bore diameter of being used in a large number to lead to.The characteristics such as it is high temperature resistant except that having, high pressure, acid and alkali resistance corrosion, it is even also to have an aperture, and therefore characteristics such as gas permeability height can extensively be used as filtration, separation, gas distribution and quieter material.
Porous ceramic film material physics and chemical property are stable.Can acid and alkali resistance corrosion, also can bear high temperature, high pressure, self clean state is good, can not cause secondary pollution, is a kind of functional material of environmental protection.
Porous ceramic film material as filtering material has narrower pore size distribution range and the higher porosity and specific area; Being filtered thing fully contacts with ceramic material; Polluters such as suspension wherein, colloid thing and microorganism are stopped on filter medium surface or inner; Filtering accuracy is high, and filter effect is good.The porous ceramics filtering material carries out backwash with gas or liquid after use after a while, can recover original filter capacity, and regenerability is good.
Porous ceramic film material is formed by process high-temperature calcinations such as metal oxide, silica, carborundum, and these materials itself have higher intensity, and the raw material granule boundary partly takes place to melt and bond in the calcination process, has higher-strength.
The suction car has Glass Fibre Bag, polyphenylene sulfide (PPS plastics), pin felt dedusting filter bag, terylene Nomex, polypropylene fibre Nomex, polyphenylene sulfide Nomex, aramid fiber Nomex, fragrant sulfone synthetic fibre Nomex, polytetrafluoroethylpunched punched felt, polyimides Nomex and the compound serial Nomex of high temperature etc. with two force feed cars filter bag commonly used now.And can be for a long time 200
oThe above fiber that uses of C has only pi fiber (P84), polytetrafluoroethylene (PTFE) and glass fibre, ceramic fibre, carbon fiber, high silica fiber and basalt fibre etc.
The air-transport system of existing pair of force feed car is to replace traditional mechanical transport material with the closed conveyance conduit.Air-transport system utilization negative pressure will expect that the loose unpacked material of end sucks the conveying batch can, through separation, dilatation sedimentation etc. material stayed in the major ingredient jar, and the air after the filtration is discharged, and guarantees that atmosphere is not contaminated.Then garage is sailed to exhaust end; Using malleation to enter material has in the sealing feed bin of deduster; This enclosed course of conveying has solved secondary pollution problem, but the air-transport system of common double force feed car takes place bonding when drawing high-temperature material easily.
Existing suction car is widely used in power plant, cement plant, steel plant and nonferrous metallurgy and absorbs the transportation dust, and they usually move under hot conditions.Stalk dust temperature is sometimes collected by steel plant can reach 600
oC.Conventional high temperature filter bag is short service life with two force feed cars at the suction car, and at high temperature easy and skeleton adhesion, makes that filter bag is difficult for changing.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned existence, and a kind of higher compressive resistance that has is provided, and resistance to elevated temperatures is good, and service life is than the long filter that is used for suction car and two force feed cars.
The technical solution adopted for the present invention to solve the technical problems is:
The porous ceramics filter that is used for suction car and two force feed cars; It is characterized in that: include upper bearing plate and lower support plate; The centre of last lower support plate is a cavity structure, and the edge is dismountable hermetically-sealed construction, and in the inner cavity of last lower support plate, is provided with the polylith dividing plate cavity is divided into some separate space; In each separate space, be provided with porous ceramic filter; Described upper bearing plate surface is netted ventilating structure, and its width of mesh is less than the profile size of porous ceramic filter.
In such scheme, described upper bearing plate is shaped as and has the structure that arches upward, and its edge and lower support plate link together through spiral shell, and are provided with sealing ring in the junction.
In such scheme, the surface of described upper bearing plate also is provided with reinforcement, is used to improve the intensity of upper bearing plate grid.
In such scheme, described upper bearing plate is surface plate or the curved slab that has radian.
In such scheme, described lower support plate is the curved slab that has radian that surface plate perhaps matches with upper bearing plate.
In such scheme, described porous ceramic filter is a laminated structure, and fills and completely go up the inner cavity of lower support plate.
In such scheme; The material that described porous ceramic filter is selected for use is the ceramic powder (particle mean size is 0.3 μ m) of 15-50wt%; The sintering aid of 1-5wt% (particle mean size is 0.4 μ m, purity>99%), the acrylamide of 4-20wt% (AM) is a monomer; The methylene-bisacrylamide of 1-10wt% is (MBAM) crosslinking agent; The tetramethylethylenediamine of 0.5-6wt% (TEMED) is a catalyst, and the ammonium persulfate of 1-10wt% (APS) is an initator, and the tert-butyl alcohol of 30-70wt% (TBA) is a solvent.
In such scheme, the preparation method of described porous ceramic filter is:
Acrylamide monomer (4-20wt%), crosslinking agent (1-10wt%) and the tert-butyl alcohol (30-70wt%) are mixed, and magnetic agitation forms premixed liquid;
In premixed liquid, add ceramic powder that accounts for total amount 15-50wt% and the sintering aid that accounts for total amount 1-5wt%, make slurry after ball milling 12-36 hour;
Add after the slurry vacuum degassing and account for slip 0.5-6wt% catalyst and to account for slip 1-10wt% initator injection molding after the degasification once more, 40-70 ℃ of reaction the slurry gelling is solidified, the dry base substrate that forms after the demoulding;
Thermogravimetric curve analysis based on base substrate after the drying obtains porous body at 500-600 ℃ to base substrate degreasing;
In Muffle furnace, base substrate is carried out pressureless sintering, can make finished product at 1600 ℃.
Compared with prior art, the invention has the beneficial effects as follows: through using porous ceramics, can prevent that the suction car from sticking together because of high temperature problem when suction, make it in practical application, help deashing and filter material replacing, be convenient to install as filter material.
And behind the ceramic filter operation some cycles, because inner logical possibly the obstruction by granule foreign in the fluid media (medium) of filter element, surperficial cake layer thickens; Cause filtration resistance to increase; When flow velocity reduces, can pass through blow-back, the mode that liquid backwash or gas one liquid shuffle is regenerated; And make tool extensive basically wilful to the original state level, improve service life.
Simple in structure, easily manufactured, the mechanical strength of the porous ceramic filter of employing special process processing is high, and operating pressure can reach 3-7M Pa, and pressure reduction can reach 0.8-1.5M Pa.
Description of drawings
Fig. 1 is an embodiment of the invention cross sectional view;
Fig. 2 is embodiment of the invention surface plane figure;
Fig. 3 is an embodiment of the invention three-dimensional structure diagram;
Among the figure: 1. upper bearing plate; 2. lower support plate; 3. dividing plate; 4. porous ceramic filter;
5. sealing ring; 6. reinforcement.
The specific embodiment
Below in conjunction with the embodiment in the accompanying drawing the present invention is done further detailed description, but do not constitute any restriction of the present invention.
Extremely shown in Figure 3 like Fig. 1; Be used for the porous ceramics filter of suction car and two force feed cars, include upper bearing plate 1 and lower support plate 2, the centre of last lower support plate is a cavity structure; The edge is dismountable hermetically-sealed construction; And in the inner cavity of last lower support plate, be provided with polylith dividing plate 3 cavity is divided into some separate space, in each separate space, be provided with porous ceramic filter 4; Described upper bearing plate 1 surface is netted ventilating structure, and its width of mesh is less than the profile size of porous ceramic filter 4.
In the present embodiment, described upper bearing plate 1 is shaped as and has the structure that arches upward, and its edge and lower support plate 2 link together through spiral shell, and are provided with sealing ring 5 in the junction.
In the present embodiment, the surface of described upper bearing plate 1 also is provided with reinforcement 6, is used to improve the intensity of upper bearing plate grid.
In the present embodiment, described upper bearing plate 1 is a surface plate, and described lower support plate 2 also is a surface plate.
In the present embodiment, described porous ceramic filter 4 is a laminated structure, and fills and completely go up the inner cavity of lower support plate.
Many empty ceramic filter preparation method embodiment 1:
In the present embodiment, the material that described porous ceramic filter is selected for use is the ceramic powder (particle mean size is 0.3 μ m) of 15wt%, and (particle mean size is 0.4 μ m to the sintering aid of 5wt%; Purity>99%); The acrylamide of 5wt% (AM) is a monomer, and the methylene-bisacrylamide of 2wt% is (MBAM) crosslinking agent, and the tetramethylethylenediamine of 5wt% (TEMED) is a catalyst; The ammonium persulfate of 5wt% (APS) is an initator, and the tert-butyl alcohol of 62wt% (TBA) is a solvent.
In the present embodiment, the preparation method of described porous ceramic filter is:
Acrylamide monomer (5wt%), crosslinking agent (2wt%) and the tert-butyl alcohol (62wt%) are mixed, and magnetic agitation forms premixed liquid;
In premixed liquid, add ceramic powder that accounts for total amount 15wt% and the sintering aid that accounts for total amount 5wt%, ball milling made slurry after 24 hours;
Add after the slurry vacuum degassing and account for slip 5wt% catalyst and to account for slip 5wt% initator injection molding after the degasification once more, 40 ℃ of reactions the slurry gelling is solidified, the dry base substrate that forms after the demoulding;
Thermogravimetric curve analysis based on base substrate after the drying obtains porous body at 500 ℃ to base substrate degreasing;
In Muffle furnace, base substrate is carried out pressureless sintering, can make finished product at 1600 ℃.
The porous ceramic filter that adopts this kind mode to process, operating pressure can reach 3.6MPa, and pressure reduction can reach 0.85M Pa.
Many empty ceramic filter preparation method embodiment 2:
In the present embodiment, the material that described porous ceramic filter is selected for use is the ceramic powder (particle mean size is 0.3 μ m) of 50wt%, and (particle mean size is 0.4 μ m to the sintering aid of 5wt%; Purity>99%); The acrylamide of 5wt% (AM) is a monomer, and the methylene-bisacrylamide of 2wt% is (MBAM) crosslinking agent, and the tetramethylethylenediamine of 5wt% (TEMED) is a catalyst; The ammonium persulfate of 5wt% (APS) is an initator, and the tert-butyl alcohol of 33wt% (TBA) is a solvent.
In the present embodiment, the preparation method of described porous ceramic filter is:
Acrylamide monomer (5wt%), crosslinking agent (2wt%) and the tert-butyl alcohol (33wt%) are mixed, and magnetic agitation forms premixed liquid;
In premixed liquid, add ceramic powder that accounts for total amount 50wt% and the sintering aid that accounts for total amount 5wt%, ball milling made slurry after 24 hours;
Add after the slurry vacuum degassing and account for slip 5wt% catalyst and to account for slip 5wt% initator injection molding after the degasification once more, 50 ℃ of reactions the slurry gelling is solidified, the dry base substrate that forms after the demoulding;
Thermogravimetric curve analysis based on base substrate after the drying obtains porous body at 600 ℃ to base substrate degreasing;
In Muffle furnace, base substrate is carried out pressureless sintering, can make finished product at 1600 ℃.
The porous ceramic filter that adopts this kind mode to process, operating pressure can reach 6.8MPa, and pressure reduction can reach 1.4M Pa.
Many empty ceramic filter preparation method embodiment 3:
In the present embodiment, the material that described porous ceramic filter is selected for use is the ceramic powder (particle mean size is 0.3 μ m) of 30wt%, and (particle mean size is 0.4 μ m to the sintering aid of 5wt%; Purity>99%); The acrylamide of 15wt% (AM) is a monomer, and the methylene-bisacrylamide of 2wt% is (MBAM) crosslinking agent, and the tetramethylethylenediamine of 5wt% (TEMED) is a catalyst; The ammonium persulfate of 5wt% (APS) is an initator, and the tert-butyl alcohol of 38wt% (TBA) is a solvent.
In the present embodiment, the preparation method of described porous ceramic filter is:
Acrylamide monomer (15wt%), crosslinking agent (2wt%) and the tert-butyl alcohol (38wt%) are mixed, and magnetic agitation forms premixed liquid;
In premixed liquid, add ceramic powder that accounts for total amount 30wt% and the sintering aid that accounts for total amount 5wt%, ball milling made slurry after 24 hours;
Add after the slurry vacuum degassing and account for slip 5wt% catalyst and to account for slip 5wt% initator injection molding after the degasification once more, 70 ℃ of reactions the slurry gelling is solidified, the dry base substrate that forms after the demoulding;
Thermogravimetric curve analysis based on base substrate after the drying obtains porous body at 600 ℃ to base substrate degreasing;
In Muffle furnace, base substrate is carried out pressureless sintering, can make finished product at 1600 ℃.
The porous ceramic filter that adopts this kind mode to process, operating pressure can reach 4.8MPa, and pressure reduction can reach 1.0M Pa.
Except adopting surface plate, upper bearing plate and lower support plate can also be used the curved slab of band radian in above embodiment.
The above; It only is the preferred embodiment of this invention; Be not that any pro forma restriction is done in invention, every foundation technical spirit of the present invention all still belongs in the scope of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1. the porous ceramics filter that is used for suction car and two force feed cars; It is characterized in that: include upper bearing plate and lower support plate; The centre of last lower support plate is a cavity structure, and the edge is dismountable hermetically-sealed construction, and in the inner cavity of last lower support plate, is provided with the polylith dividing plate cavity is divided into some separate space; In each separate space, be provided with porous ceramic filter; Described upper bearing plate surface is netted ventilating structure, and its width of mesh is less than the profile size of porous ceramic filter.
2. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 1; It is characterized in that: described upper bearing plate is shaped as and has the structure that arches upward; Its edge and lower support plate link together through spiral shell, and are provided with sealing ring in the junction.
3. according to claim 1 or claim 2 the porous ceramics filter that is used for suction car and two force feed cars is characterized in that: the surface of described upper bearing plate also is provided with the reinforcement of the intensity that is used to improve the upper bearing plate grid.
4. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 3, it is characterized in that: described upper bearing plate is surface plate or the curved slab that has radian.
5. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 1, it is characterized in that: described lower support plate is the curved slab that has radian that surface plate perhaps matches with upper bearing plate.
6. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 1, it is characterized in that: described porous ceramic filter is a laminated structure, and fills and completely go up the inner cavity of lower support plate.
7. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 1; It is characterized in that: the material component that described porous ceramic filter is selected for use is: the ceramic powder of 15-50wt%, and the sintering aid of 1-5wt%, the acrylamide of 4-20wt% are monomer; The methylene-bisacrylamide of 1-10wt% is a crosslinking agent; The tetramethylethylenediamine of 0.5-6wt% is a catalyst, and the ammonium persulfate of 1-10wt% is an initator, and the tert-butyl alcohol of 30-70wt% is a solvent.
8. the porous ceramics filter that is used for suction car and two force feed cars as claimed in claim 7, it is characterized in that: the preparation method of described porous ceramic filter is:
Acrylamide monomer, crosslinking agent and the tert-butyl alcohol are mixed, and magnetic agitation forms premixed liquid;
In premixed liquid, add ceramic powder and sintering aid, make slurry after ball milling 12-36 hour;
Add catalyst and initator injection molding after the degasification once more after the slurry vacuum degassing, 40-70 ℃ of reaction the slurry gelling is solidified, dry formation base substrate after the demoulding;
Thermogravimetric curve analysis based on base substrate after the drying obtains porous body at 500-600 ℃ to base substrate degreasing;
In Muffle furnace, base substrate is carried out pressureless sintering at 1600 ℃, can make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103017467A CN102824784A (en) | 2012-08-23 | 2012-08-23 | Porous ceramic filtration device for suction vehicle and double-pressure feeding vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103017467A CN102824784A (en) | 2012-08-23 | 2012-08-23 | Porous ceramic filtration device for suction vehicle and double-pressure feeding vehicle |
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| CN102824784A true CN102824784A (en) | 2012-12-19 |
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| CN2012103017467A Pending CN102824784A (en) | 2012-08-23 | 2012-08-23 | Porous ceramic filtration device for suction vehicle and double-pressure feeding vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434844A (en) * | 2013-09-04 | 2013-12-11 | 南京中航特种装备有限公司上海技术中心 | Dual pressure feed transport system and transport method thereof |
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2012
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| CN2204636Y (en) * | 1994-05-20 | 1995-08-09 | 孙淑兰 | Foamed ceramic filtering board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434844A (en) * | 2013-09-04 | 2013-12-11 | 南京中航特种装备有限公司上海技术中心 | Dual pressure feed transport system and transport method thereof |
| CN103434844B (en) * | 2013-09-04 | 2016-04-13 | 南京中航特种装备有限公司上海技术中心 | Two force feed delivery system and carrying method thereof |
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Application publication date: 20121219 |