CN102008857B - Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof - Google Patents
Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN102008857B CN102008857B CN 201010291794 CN201010291794A CN102008857B CN 102008857 B CN102008857 B CN 102008857B CN 201010291794 CN201010291794 CN 201010291794 CN 201010291794 A CN201010291794 A CN 201010291794A CN 102008857 B CN102008857 B CN 102008857B
- Authority
- CN
- China
- Prior art keywords
- supporter
- temperature
- filter
- filter core
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 90
- 239000000428 dust Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000012528 membrane Substances 0.000 claims abstract description 65
- 238000000034 method Methods 0.000 claims abstract description 56
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 238000009851 ferrous metallurgy Methods 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims description 67
- 238000000746 purification Methods 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 229920000914 Metallic fiber Polymers 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 15
- 238000010248 power generation Methods 0.000 claims description 15
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- 230000014759 maintenance of location Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000004056 waste incineration Methods 0.000 claims description 9
- 238000001802 infusion Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- -1 metavanadic acid amine Chemical class 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 26
- 239000003546 flue gas Substances 0.000 description 26
- 239000003463 adsorbent Substances 0.000 description 9
- 239000003245 coal Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910002060 Fe-Cr-Al alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention provides a filter element for filtering high-temperature dust and purifying gas as well as a preparation method and application thereof, wherein the filter element comprises a support body and a filtering membrane which covers the surface of the support body; a denitrification catalyst is loaded in a pore space of the support body; and the filter element can be prepared by preparing the support body first, preparing the filtering membrane on the support body by adopting a spraying method and finally loading the denitrification catalyst in the pore space of the support body by using an impregnating method. The filter element is combined into a filter element assembly and then arranged in a filter container which can be used for filtering the high-temperature dust and purifying the gas in the fields of thermal power, refuse incineration, ferrous metallurgy or petroleum chemical industry. The filter element overcomes the defects that the ceramic filtering membranes have low break strength, poor heat shock resistance and higher assembly difficulty and more difficult high-temperature sealing connection of a membrane pipe and can remarkably improve the filter efficiency and the filter precision and prolong the service life.
Description
Technical field
The present invention relates to that high-temperature dust filters and the filtering technique of gas purification, particularly a kind ofly filter and the filter core of gas purification and its preparation method and application for high-temperature dust.
Background technology
At present, flue gas ash removal and gas purification technique have been widely used in many industrial production and environmental protection field.For example, thermal power plant, city garbage burning, petroleum and petrochemical industry and iron and steel metallurgical industry all can adopt various dedustings and purification techniques means.But the temperature of these industrial smokes is generally all very high, even up to more than 1000 ℃.Common technical scheme is that high-temperature flue gas is cooled off, and flue-gas temperature is dropped to below 250 ℃, perhaps continues to be cooled to below 150 ℃, temperature or low temperature bag-type dust in carrying out again.In order to reach the purpose of gas cleaning, also to add various dry method or wet processing usually flue gas is carried out the desulphurization denitration processing.The problem that these technical schemes exist comprises a large amount of losses, complex technical process, inefficiency of the energy and with high costs etc.In recent years, some researchers propose to adopt resistant to elevated temperatures ceramic filter membrane to realize that high-temperature flue gas filters, and reduce the energy loss in the flue gas processing procedure, thereby reach the purpose that improves the thermal efficiency.But ceramic-film tube has many defectives that are difficult to overcome.For example, thermal shock resistance is relatively poor, and phenomenon of rupture in use takes place easily.In addition, the sealed package difficulty of ceramic-film tube is bigger.Therefore, ceramic-film tube can't satisfy the demand of WeiLai Technology development, must develop high-temperature dust removal and the gas purification technique that makes new advances.
Along with the exhaustion day by day of the energy and the continuous rising of environmental protection pressure, the utilization of the efficient and rational and environmental protection of the energy becomes the challenge that the new century mankind face.The many countries in the world that comprise China have all proposed new forms of energy and environmental protection strategy, wind power generation for example, solar energy utilization, the efficient and rational utilization of bioenergy and coal resources.Wherein, the clean coal power generation technology is exactly one of important channel of the efficient and rational utilization of coal resources.Compare with traditional thermal power generating technology, the clean coal power generation technology can significantly improve heat energy efficiency.The capacity usage ratio of traditional thermal power generation has only about 30%, and new clean coal power generation technology can be brought up to this index more than 50%.Simultaneously, because the application of novel filtration and cleaning system can reduce SO widely
2, NOx, CO
2And the discharging of solid dust.Therefore, the exploitation of clean coal technology and utilization rationally will have very important meaning to the energy-conservation and environmental protection policy of new century in China and the world.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of for the filter core of high-temperature dust filtration with gas purification, industrial smoke at high temperature, this filter core can be realized carrying out simultaneously high-temperature dust and be filtered and gas purification, simplify the technological process of industrial flue gas cleaning, also improve energy utilization rate.
Another object of the present invention is to provide a kind of above-mentioned for the preparation method of high-temperature dust filtration with the filter core of gas purification.
It is a kind of above-mentioned for the application of high-temperature dust filtration with the filter core of gas purification that a further object of the present invention is to provide.
The present invention is achieved through the following technical solutions: a kind of for the filter core of high-temperature dust filtration with gas purification, comprise supporter and filter membrane, filter membrane is overlying on supporting body surface, the hole internal burden of supporter has denitrating catalyst, the porosity of supporter is 30～90%, the average pore size of supporter is 10～30 μ m, the thickness of supporter is 1.0～10.0mm, the filtering accuracy of supporter is 20～85 μ m, the porosity of filter membrane is 50～80%, the filtering accuracy of filter membrane is 2～20 μ m, and the thickness of filter membrane is 0.1～0.8mm.
In the above-mentioned filter cartridge construction, described supporter is tubular type or flat supporter.
The material of described supporter is a kind of in metal powder sintered material or the metallic fiber sintered felt; The metal dust that metal powder sintered material adopts is one or more in powder of stainless steel, siderochrome aluminium powder or the Ni-based high temperature resistant powder; The metal fiber length of metallic fiber sintered felt is 10～100mm, and diameter is 8～60 μ m, and the unit felt of metallic fiber sintered felt heavily is 100～950g/m
2
The material of described filter membrane is metallic fiber sintered felt, and the unit felt of metallic fiber sintered felt heavily is 100～850g/m
2
Described denitrating catalyst is V
2O
5-WO
3/ TiO
2
The present invention is a kind of above-mentioned for the preparation method of high-temperature dust filtration with the filter core of gas purification, may further comprise the steps:
(1) making of supporter: choose for the material of making supporter, take by weighing required supporter raw material and additive thereof; When selected supporter raw material is metal powder sintered material, adopt the method moulding supporter of isostatic cool pressing-vacuum-sintering, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 850～1450 ℃, and the sintered heat insulating time is 1～5h; When selected supporter raw material is metallic fiber sintered felt, adopt dry method nonwoven shop felt method moulding supporter, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h;
(2) making of filter membrane: when selected supporter raw material is metal powder sintered material, by evenly coat the suspension of filter membrane raw material in supporting body surface, carry out the high temperature sintering moulding then, make filter membrane and supporter form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 750～1200 ℃, and the sintered heat insulating time is 1～3h; When selected supporter raw material is metallic fiber sintered felt, by dry method nonwoven shop felt method molding filter film, again in type filter membrane is overlying on supporting body surface, finally by crossing the high temperature sinter molding, make filter membrane and supporter form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h; (3) add denitrating catalyst: the integral structure of filter membrane and supporter is flooded, by infusion process denitrating catalyst is loaded in the hole of supporter, so far, the metal film filter core of formation is for being used for the filter core of high-temperature dust filtration and gas purification.
The described additive of step (1) comprises lubricant and the binding agent that Acrowax C, supporter compression moulding are used; In the raw material, the mass fraction of additive is 0.1～0.8%, and the mass fraction of supporter raw material is 99.2～99.9%.
The detailed process of described dipping is: at first with solids content be 8%, the TiO of particle mean size 150nm
2Colloid adopt wet impregnation at normal temperatures in the hole of filter core, dry 8 hours at normal temperatures; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm
2The filter core of filter area, TiO
2Solid supported amount control at 0.8～1.2g; Then, prepare denitrification catalyst according to proportioning, i.e. V
2O
5Mass fraction be 1%, WO
3/ TiO
2Mass fraction be 10%, be concentration that 10% wolframic acid amine and metavanadic acid amine aqueous solution are by the hole internal burden WO of wet method step impregnation method at supporter
3And V
2O
5, under 120 ℃ of temperature dry 10 hours then, 500 ℃ of temperature lower calcinations 5 hours.
Among the preparation method of above-mentioned filter core, when adopting the method for isostatic cool pressing-vacuum-sintering to prepare supporter, but its preparation method application reference number is the preparation method of 200910194268.2 the disclosed a kind of seamless sintering metal powder filtering membrane tube of patent application; When adopting dry method nonwoven shop felt legal system to be equipped with supporter or filter membrane, but its preparation method referenced patent number is the metallic filtering film and preparation method thereof of the disclosed unsymmetric structure of Chinese patent of ZL 200810030945.2.
The present invention is a kind of above-mentioned for the application of high-temperature dust filtration with the filter core of gas purification, after a plurality of cartridge combination that make are become element kit, be installed in the filtering container, filtering container can be used for filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.During use, when high-temperature flue gas entered container from the smoke inlet of filtering container, desulfuration adsorbent and NH were injected in the adsorbent import on flue
3, at this moment, the S before by filter membrane in the flue gas can be desulfurized adsorbents adsorb and remove; When removing flue gas behind the S and filtering through filter membrane, dust in flue gas and use after adsorbent by filtering, and regularly discharge from the slag-drip opening of filtering container; By the filter membrane filtering flue gas of dust and other solid particles further by supporter, at this moment, the NO in the flue gas and NO
xUnder the effect of denitrating catalyst with NH
3Chemical reaction takes place be converted into harmless N
2And H
2O; At last, discharge by outlet through the clean flue gas after dedusting and the gas cleaning.
The present invention has following advantageous effect with respect to prior art:
1, this filter core high temperature resistant and corrosion resistant metal of employing or intermetallic compound are that raw material are as filter cartridge construction, can overcome that ceramic-like filter membrane fracture strength is low, many shortcomings of poor thermal shock resistance, simultaneously, also overcome the elevated-temperature seal big, the film pipe of ceramic-film tube assembling difficulty and connected the relatively shortcoming of difficulty.
2, the unsymmetric structure filter membrane of all-metal or intermetallic compound material adopts surface filtration mechanism in this filter core, can significantly improve filter efficiency, service life and filtering accuracy.In addition, the higher surface filtration key-course of filtering accuracy can stop dust and other harmful substances to be penetrated into supporter, thereby reduces the degree of intoxication of catalyst.
3, a plurality of filter cores are assembled into after assembly is installed in the filtering container, add the alkaline adsorbent of desulfurization in the porch of flue gas simultaneously, can realize simultaneously that high-temperature dust filters and gas purification one go on foot the function of finishing.Like this, the technological process of smoke filtration and gas purification be can simplify greatly, and efficient and heat utilization efficiency improved.
4, mainly to adopt resistant to elevated temperatures metal dust or metallic fiber be that raw material preparing is crossed supporter to this filter core, adopt method very thin filter membrane of compound one deck on the outer surface of supporter of spraying, adopt the method load denitrating catalyst of dipping in the hole of supporter, such structure just can play the purpose of flue gas ash removal and denitration purified treatment.The thicker one deck of filtering accuracy is as supporter, the higher one deck of filtering accuracy is as filter membrane, when carrying out desulfurization at flue gas earlier in the porch of filtering container, carry out denitration by filter core again, so just can a step realize multiple functions such as high-temperature dust removal and gas purification, the filter core of this structure not only can be applied in the future development prospect clean coal power generation technical field widely, and can be used for traditional many fields such as thermal power generation, waste incineration, Ferrous Metallurgy and petrochemical industry, reach the purpose of energy-conserving and environment-protective.
Description of drawings
Work principle of filter schematic diagram when Fig. 1 is the use of this filter core, the direction of arrow is the flow direction of flue gas among the figure, and 1 is supporter, and 2 is filter membrane, and 10 is the dust that is filtered in the flue gas.
Fig. 2 is the partial structurtes schematic diagram of supporter in this filter core, and 1 is supporter among the figure, and 3 is denitrating catalyst, and 11 is the hole in the supporter.
Fig. 3 is the structural representation of this filter core filtering container when being applied to filtering container.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
A kind of for the filter core of high-temperature dust filtration with gas purification, its structure such as Fig. 1 or shown in Figure 2, comprise supporter 1 and filter membrane 2, filter membrane 2 is overlying on supporter 1 surface, hole 11 internal burdens of supporter 1 have denitrating catalyst 3, the porosity of supporter 1 is 30～90%, the average pore size of supporter 1 is 10～30 μ m, the thickness of supporter 1 is 1.0～10.0mm, the filtering accuracy of supporter 1 is 20～85 μ m, the porosity of filter membrane 2 is 50～80%, and the filtering accuracy of filter membrane 2 is 2～20 μ m, and the thickness of filter membrane 2 is 0.1～0.8mm.
In the above-mentioned filter cartridge construction, supporter 1 can be tubular type or flat supporter.
The material of supporter 1 can be a kind of in metal powder sintered material or the metallic fiber sintered felt; The metal dust that metal powder sintered material adopts is one or more in powder of stainless steel, siderochrome aluminium powder or the Ni-based high temperature resistant powder; The metal fiber length of metallic fiber sintered felt is 10～100mm, and diameter is 8～60 μ m, and the unit felt of metallic fiber sintered felt heavily is 100～950g/m
2
The material of filter membrane 2 is metallic fiber sintered felt, and the unit felt of metallic fiber sintered felt heavily is 100～850g/m
2
Denitrating catalyst 3 is V
2O
5-WO
3/ TiO
2
A kind of above-mentioned for the preparation method of high-temperature dust filtration with the filter core of gas purification, may further comprise the steps:
(1) making of supporter 1: choose for the material of making supporter 1, take by weighing required supporter raw material and additive thereof; When selected supporter raw material is metal powder sintered material, adopt the method moulding supporter 1 of isostatic cool pressing-vacuum-sintering, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 850～1450 ℃, and the sintered heat insulating time is 1～5h; When selected supporter 1 raw material is metallic fiber sintered felt, adopt dry method nonwoven shop felt method moulding supporter 1, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h;
(2) making of filter membrane 2: when selected supporter raw material is metal powder sintered material, by evenly coat the suspension of filter membrane raw material on supporter 1 surface, carry out the high temperature sintering moulding then, make filter membrane 2 and supporter 1 form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 750～1200 ℃, and the sintered heat insulating time is 1～3h; When selected supporter raw material is metallic fiber sintered felt, by dry method nonwoven shop felt method molding filter film 2, again in type filter membrane 2 is overlying on supporter 1 surface, finally by crossing the high temperature sinter molding, make filter membrane 2 and supporter 1 form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h;
(3) add denitrating catalyst 3: the integral structure of filter membrane 2 and supporter 1 is flooded, by infusion process denitrating catalyst 3 is loaded in the hole of supporter 1, so far, the metal film filter core of formation is for being used for the filter core of high-temperature dust filtration and gas purification.
Wherein, additive comprises lubricant and the binding agent that Acrowax C, supporter compression moulding are used in the step (1); In the raw material, the mass fraction of additive is 0.1～0.8%, and the mass fraction of supporter raw material is 99.2～99.9%.
The detailed process of dipping is: at first with solids content be 8%, the TiO of particle mean size 150nm
2Colloid adopt wet impregnation at normal temperatures in the hole of filter core, dry 8 hours at normal temperatures; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm
2The filter core of filter area, TiO
2Solid supported amount control at 0.8～1.2g; Then, prepare denitrification catalyst according to proportioning, i.e. V
2O
5Mass fraction be 1%, WO
3/ TiO
2Mass fraction be 10%, be concentration that 10% wolframic acid amine and metavanadic acid amine aqueous solution are by the hole internal burden WO of wet method step impregnation method at supporter
3And V
2O
5, under 120 ℃ of temperature dry 10 hours then, 500 ℃ of temperature lower calcinations 5 hours.
Among the preparation method of above-mentioned filter core, when adopting the method for isostatic cool pressing-vacuum-sintering to prepare supporter 1, but its preparation method application reference number is the preparation method of 200910194268.2 the disclosed a kind of seamless sintering metal powder filtering membrane tube of patent application; When adopting dry method nonwoven shop felt legal system to be equipped with supporter 1 or filter membrane 2, but its preparation method referenced patent number is the metallic filtering film and preparation method thereof of the disclosed unsymmetric structure of Chinese patent of ZL 200810030945.2.
A kind of above-mentioned for the application of high-temperature dust filtration with the filter core of gas purification, as shown in Figure 3, after a plurality of cartridge combination that make are become element kit 4, be installed in the filtering container, filtering container can be used for filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.During use, when high-temperature flue gas entered container from the smoke inlet 5 of filtering container, desulfuration adsorbent and NH were injected in the adsorbent import 7 on flue 6
3, at this moment, the S before by filter membrane 2 in the flue gas can be desulfurized adsorbents adsorb and remove; When removing flue gas behind the S and filtering through filter membrane 2, as shown in Figure 1, dust in flue gas 10 and use after adsorbent by filtering, and regularly discharge from the slag-drip opening 8 of filtering container; By filter membrane 2 filterings the flue gas of dust and other solid particles further by supporter 1, at this moment, the NO in the flue gas and NO
xUnder the effect of denitrating catalyst 3 with NH
3Chemical reaction takes place be converted into harmless N
2And H
2O; At last, discharge by outlet 9 through the clean flue gas after dedusting and the gas cleaning.
Embodiment one
Embodiment two
Embodiment three
Embodiment four
Embodiment five
As mentioned above, just can realize the present invention preferably, above-described embodiment is preferred embodiment of the present invention only, is not to limit practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (9)
1. the filter core that is used for high-temperature dust filtration and gas purification, it is characterized in that, comprise supporter and filter membrane, filter membrane is overlying on supporting body surface, the hole internal burden of supporter has denitrating catalyst, the porosity of supporter is 30～90%, the average pore size of supporter is 10～30 μ m, the thickness of supporter is 1.0～10.0mm, the filtering accuracy of supporter is 20～85 μ m, the porosity of filter membrane is 50～80%, and the filtering accuracy of filter membrane is 2～20 μ m, and the thickness of filter membrane is 0.1～0.8mm.
2. described for the filter core of high-temperature dust filtration with gas purification according to claim 1, it is characterized in that described supporter is tubular type or flat supporter.
3. filter filter core with gas purification according to claim 1 is described for high-temperature dust, it is characterized in that, the material of described supporter is a kind of in metal powder sintered material or the metallic fiber sintered felt; The metal dust that metal powder sintered material adopts is one or more in powder of stainless steel, siderochrome aluminium powder or the Ni-based high temperature resistant powder; The metal fiber length of metallic fiber sintered felt is 10～100mm, and diameter is 8～60 μ m, and the unit felt of metallic fiber sintered felt heavily is 100～950g/m
2
4. it is characterized in that for the filter core of high-temperature dust filtration with gas purification the material of described filter membrane is metallic fiber sintered felt according to claim 1 is described, the unit felt of metallic fiber sintered felt heavily is 100～850g/m
2
5. described for the filter core of high-temperature dust filtration with gas purification according to claim 1, it is characterized in that described denitrating catalyst is V
2O
5-WO
3/ TiO
2
6. each describedly filters preparation method with the filter core of gas purification for high-temperature dust according to claim 1～5, it is characterized in that, may further comprise the steps:
(1) making of supporter: choose for the material of making supporter, take by weighing required supporter raw material and additive thereof; When selected supporter raw material is metal powder sintered material, adopt the method moulding supporter of isostatic cool pressing-vacuum-sintering, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 850～1450 ℃, and the sintered heat insulating time is 1～5h; When selected supporter raw material is metallic fiber sintered felt, adopt dry method nonwoven shop felt method moulding supporter, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h;
(2) making of filter membrane: when selected supporter raw material is metal powder sintered material, by evenly coat the suspension of filter membrane raw material in supporting body surface, carry out the high temperature sintering moulding then, make filter membrane and supporter form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, and sintering temperature is 750～1200 ℃, and the sintered heat insulating time is 1～3h; When selected supporter raw material is metallic fiber sintered felt, by dry method nonwoven shop felt method molding filter film, again in type filter membrane is overlying on supporting body surface, finally by crossing the high temperature sinter molding, make filter membrane and supporter form integral structure, wherein, high temperature sintering carries out in vacuum sintering furnace, sintering temperature is 950～1350 ℃, and temperature retention time is 1～5h;
(3) add denitrating catalyst: the integral structure of filter membrane and supporter is flooded, by infusion process denitrating catalyst is loaded in the hole of supporter, so far, the metal film filter core of formation is for being used for the filter core of high-temperature dust filtration and gas purification.
7. described for the preparation method of high-temperature dust filtration with the filter core of gas purification according to claim 6, it is characterized in that the described additive of step (1) comprises lubricant and the binding agent that Acrowax C, supporter compression moulding are used; In the raw material, the mass fraction of additive is 0.1～0.8%, and the mass fraction of supporter raw material is 99.2～99.9%.
8. filter preparation method with the filter core of gas purification according to claim 6 is described for high-temperature dust, it is characterized in that the detailed process of described dipping is: at first with solids content be 8%, the TiO of particle mean size 150nm
2Colloid adopt wet impregnation at normal temperatures in the hole of filter core, dry 8 hours at normal temperatures; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm
2The filter core of filter area, TiO
2Solid supported amount control at 0.8～1.2g; Then prepare denitrification catalyst according to proportioning, i.e. V
2O
5Mass fraction be 1%, WO
3/ TiO
2Mass fraction be 10%, be concentration that 10% wolframic acid amine and metavanadic acid amine aqueous solution are by the hole internal burden WO of wet method step impregnation method at supporter
3And V
2O
5, under 120 ℃ of temperature dry 10 hours then, 500 ℃ of temperature lower calcinations 5 hours.
9. each describedly filters application with the filter core of gas purification for high-temperature dust according to claim 1～5, it is characterized in that, after a plurality of cartridge combination that make are become element kit, be installed in the filtering container, filtering container can be used for filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291794 CN102008857B (en) | 2010-09-21 | 2010-09-21 | Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291794 CN102008857B (en) | 2010-09-21 | 2010-09-21 | Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102008857A CN102008857A (en) | 2011-04-13 |
| CN102008857B true CN102008857B (en) | 2013-07-17 |
Family
ID=43839304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010291794 Active CN102008857B (en) | 2010-09-21 | 2010-09-21 | Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102008857B (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489079A (en) * | 2011-12-30 | 2012-06-13 | 安泰科技股份有限公司 | Asymmetric metal filter core and preparation method thereof |
| CN103252135B (en) * | 2013-05-08 | 2015-08-12 | 安徽省元琛环保科技有限公司 | A kind of dedusting denitrification integral functional filter material and preparation method thereof |
| CN103275767A (en) * | 2013-05-24 | 2013-09-04 | 张晓� | Method for separating high-temperature gas containing solid dust and tar gas |
| CN103495346B (en) * | 2013-10-09 | 2015-09-02 | 山东工业陶瓷研究设计院有限公司 | Dust-laden poisonous high-temperature gas process ceramic membrane and preparation method thereof |
| CN104028064B (en) * | 2014-03-07 | 2015-10-28 | 北京神雾环境能源科技集团股份有限公司 | Plate and frame PTFE film deduster |
| CN104492189B (en) * | 2014-11-30 | 2017-01-18 | 成都易态科技有限公司 | Integrated dust removal-denitration treatment method for industrial furnace gas and special device for integrated treatment method |
| CN104548923B (en) * | 2014-11-30 | 2016-12-07 | 成都易态科技有限公司 | Filtration catalytic element and preparation method thereof |
| CN104826490B (en) * | 2015-04-15 | 2017-03-08 | 成都易态科技有限公司 | Composite filter element element and preparation method thereof |
| CN104826410B (en) * | 2015-04-15 | 2016-08-24 | 成都易态科技有限公司 | Smoke filtration element and preparation method |
| CN104826491B (en) * | 2015-04-17 | 2017-07-18 | 成都易态科技有限公司 | Intermetallic compound porous matrix composite filter element element and preparation method thereof |
| CN104826387B (en) * | 2015-04-17 | 2017-01-25 | 成都易态科技有限公司 | Filtering element with denitration catalytic effects, and preparation method thereof |
| CN104906946B (en) * | 2015-04-29 | 2017-04-05 | 南京工业大学 | Preparation method of catalytic membrane for gas purification |
| CN105126469A (en) * | 2015-09-06 | 2015-12-09 | 成都易态科技有限公司 | Modified filter element, modifying method thereof and application thereof |
| CN105771475B (en) * | 2016-03-16 | 2019-08-16 | 江苏省陶瓷研究所有限公司 | A kind of filtering high-temperature flue gas ceramic membrane and its method of preparation |
| CN106178933A (en) * | 2016-07-07 | 2016-12-07 | 四川思达能环保科技有限公司 | The processing method of a kind of spodumene calcination rotary kiln kiln exit gas and system |
| CN106435195B (en) * | 2016-10-10 | 2018-02-02 | 昆明南铂再生资源技术研究有限公司 | Glass mat preparation method is used in noble metal recovery |
| CN106282580B (en) * | 2016-10-10 | 2018-02-02 | 昆明南铂再生资源技术研究有限公司 | Noble metal recovery glass mat |
| CN107652990A (en) * | 2017-10-24 | 2018-02-02 | 北京神雾电力科技有限公司 | A kind of pyrolysis oven feed system |
| CN108704390B (en) * | 2018-06-15 | 2021-07-06 | 西安菲尔特金属过滤材料股份有限公司 | High-temperature denitration and dust removal integrated metal fiber filtering material and preparation method thereof |
| CN109351182A (en) * | 2018-11-27 | 2019-02-19 | 蓝天环保设备工程股份有限公司 | A kind of Sinter-plate Filter with VOCs remove |
| CN111617555A (en) * | 2019-09-27 | 2020-09-04 | 飞潮（无锡）过滤技术有限公司 | High-temperature catalytic purification metal fiber filter material and preparation method thereof |
| CN112303655A (en) * | 2020-09-16 | 2021-02-02 | 云南农业大学 | Top dross removal mechanism and biomass combustion furnace |
| CN114377476B (en) * | 2020-10-16 | 2024-01-19 | 安泰科技股份有限公司 | High-precision filter element for adsorption desulfurization device, filter element assembly and preparation method |
| CN112473683B (en) * | 2020-11-18 | 2022-07-26 | 浙江工业大学 | Powder sintering filtering catalytic material based on gradient pore structure and preparation method thereof |
| CN112354301B (en) * | 2020-12-04 | 2022-02-11 | 安徽华塑股份有限公司 | Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505757A (en) * | 1993-08-20 | 1996-04-09 | Sumitomo Electric Industries, Ltd. | Corrosion-resistant metal filters |
| CN2636952Y (en) * | 2003-04-29 | 2004-09-01 | 李国宾 | High efficient gas filter |
| CN101249389A (en) * | 2008-03-31 | 2008-08-27 | 徐小平 | Metallic filtering film with antisymmetric structure and method of preparing the same |
| CN101708400A (en) * | 2009-12-01 | 2010-05-19 | 韶关市贝瑞过滤科技有限公司 | Method for preparing seamless sintering metal powder filtering membrane tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1119477A (en) * | 1997-07-04 | 1999-01-26 | Babcock Hitachi Kk | Waste gas purifying device and waste gas purification method using the same |
-
2010
- 2010-09-21 CN CN 201010291794 patent/CN102008857B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505757A (en) * | 1993-08-20 | 1996-04-09 | Sumitomo Electric Industries, Ltd. | Corrosion-resistant metal filters |
| CN2636952Y (en) * | 2003-04-29 | 2004-09-01 | 李国宾 | High efficient gas filter |
| CN101249389A (en) * | 2008-03-31 | 2008-08-27 | 徐小平 | Metallic filtering film with antisymmetric structure and method of preparing the same |
| CN101708400A (en) * | 2009-12-01 | 2010-05-19 | 韶关市贝瑞过滤科技有限公司 | Method for preparing seamless sintering metal powder filtering membrane tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102008857A (en) | 2011-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102008857B (en) | Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof | |
| CN105233644B (en) | Coal-fired flue gas dust-removing desulfurization and denitrification integrated compound technology system | |
| CN101524609B (en) | Asymetric membrane FeAl intermetallic compound porosint filter element and application thereof | |
| CN104492189B (en) | Integrated dust removal-denitration treatment method for industrial furnace gas and special device for integrated treatment method | |
| CN101890500B (en) | Preparation method of double-layer sintered metal powder filter element | |
| CN100560182C (en) | Ceramic filter-element dust collector | |
| Li et al. | Recent advances in catalytic filters for integrated removal of dust and NOx from flue gas: fundamentals and applications | |
| CN101402012A (en) | Crystal cotton frameless pulse precipitation apparatus | |
| CN111068417B (en) | A fabric-reinforced high-silica fiber filter tube and preparation method thereof | |
| CN201643909U (en) | High-temperature smoke dust-removing filter | |
| CN104826410B (en) | Smoke filtration element and preparation method | |
| JP5543603B2 (en) | Alumina titanate porous structure | |
| ITTO990403A1 (en) | PROCEDURE FOR THE PRODUCTION OF A PARTICULATE FILTER FOR MOTORIDIESEL, USING A HIGH PERFORMANCE CERAMIC FOAM | |
| CN103274368A (en) | Acid preparing process by metallurgical off-gas and special equipment line | |
| US12059652B2 (en) | Fe—Al-based metal membrane and preparation method thereof | |
| JP5070173B2 (en) | Exhaust gas purification filter and manufacturing method thereof | |
| CN203507687U (en) | Dust collection system in process of making acid by smelting smoke | |
| CN104548923B (en) | Filtration catalytic element and preparation method thereof | |
| CN203694778U (en) | Porous ceramic dust collector for filtering PM2.5 particle layer | |
| CN104826490B (en) | Composite filter element element and preparation method thereof | |
| CN212383490U (en) | A dedusting catalytic coupling tube assembly and a dedusting catalytic coupling device including the same | |
| Miao et al. | Preparation of fibrous ceramic-based catalytic membranes by microwave heating and their structural properties and dust and NO removal characteristics | |
| CN208927938U (en) | Dedusting denitrification integral combines filtrate | |
| CN219861240U (en) | Blast furnace gas dust removal desulfurization reactor and blast furnace gas integrated desulfurization dust removal system | |
| CN207928864U (en) | A kind of composite filtering material for coal-burning boiler high temperature high corrosion flue gas ash removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: KUNSHAN HAIPU FILTRATING SEPARATION TECHNOLOGY CO. Free format text: FORMER OWNER: GUANGZHOU GREATER MATERIAL TECHNOLOGY CO., LTD. Effective date: 20110616 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510663 UNIT 326, 3/F, AREA D OF TECHNOLOGY INNOVATION BASE, NO. 80, LANYUE ROAD, SCIENCE CITY, HIGH-TECH. INDUSTRIAL DEVELOPMENT ZONE, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 215300 NO. 179, ZHANGJI ROAD, SMALL AND MEDIUM-SIZED ENTERPRISE PARK, DEVELOPMENT ZONE, KUNSHAN CITY, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110616 Address after: Kunshan City Development Zone, 215300 small and medium-sized enterprises in Jiangsu Province Road No. 179 Park chapter Applicant after: Kunshan HaiPu Separation Science and Technology Co., Ltd. Address before: Moon Road, Science City high tech Industrial Development Zone of Guangzhou City, Guangdong province 510663 No. 80 science and technology innovation base D District third floor 326 unit Applicant before: Guangzhou Geruite Material Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU HAICHEN FILTRATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: KUNSHAN HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD. Effective date: 20130924 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215300 SUZHOU, JIANGSU PROVINCE TO: 510663 GUANGZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130924 Address after: 510663, building eighth, building 802, building 182, science Road, Science Town, Luogang District hi tech Industrial Development Zone, Guangdong, Guangzhou, Patentee after: Guangzhou Haichen Filtration Technology Co., Ltd. Address before: Kunshan City Development Zone, 215300 small and medium-sized enterprises in Jiangsu Province Road No. 179 Park chapter Patentee before: Kunshan HaiPu Separation Science and Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: KUNSHAN HAIPU FILTERING SEPARATION TECHNOLOGY CO., Free format text: FORMER OWNER: GUANGZHOU HAICHEN FILTRATION TECHNOLOGY CO., LTD. Effective date: 20140702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510663 GUANGZHOU, GUANGDONG PROVINCE TO: 215300 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140702 Address after: 215300, 108, organ Road, small and medium-sized enterprise park, Kunshan Development Zone, Jiangsu Patentee after: Kunshan HaiPu Separation Science and Technology Co., Ltd. Address before: 510663, building eighth, building 802, building 182, science Road, Science Town, Luogang District hi tech Industrial Development Zone, Guangdong, Guangzhou, Patentee before: Guangzhou Haichen Filtration Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU HAIPU FILTERING SEPARATION TECHNOLOGY CO., Free format text: FORMER NAME: KUNSHAN HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215300, 108, organ Road, small and medium-sized enterprise park, Kunshan Development Zone, Jiangsu Patentee after: SUZHOU HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD. Address before: 215300, 108, organ Road, small and medium-sized enterprise park, Kunshan Development Zone, Jiangsu Patentee before: Kunshan HaiPu Separation Science and Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190315 Address after: 100000 Fuxing Road, Haidian District, Beijing, No. 12, 15, 16 Gates, 6 Patentee after: Xu Xiaoping Address before: 215300 No. 108 Organ Road, Small and Medium Enterprise Park, Kunshan Development Zone, Jiangsu Province Patentee before: SUZHOU HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191127 Address after: 215300, 108, organ Road, small and medium-sized enterprise park, Kunshan Development Zone, Jiangsu, Suzhou Patentee after: SUZHOU HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD. Address before: 100000 Fuxing Road, Haidian District, Beijing, No. 12, 15, 16 Gates, 6 Patentee before: Xu Xiaoping |
|
| TR01 | Transfer of patent right |