CN102008857A - 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 PDF

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CN102008857A
CN102008857A CN 201010291794 CN201010291794A CN102008857A CN 102008857 A CN102008857 A CN 102008857A CN 201010291794 CN201010291794 CN 201010291794 CN 201010291794 A CN201010291794 A CN 201010291794A CN 102008857 A CN102008857 A CN 102008857A
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supporter
temperature
sintering
filter
filter core
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CN102008857B (en
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徐小平
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SUZHOU HAIPU FILTERING SEPARATION TECHNOLOGY CO., LTD.
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GUANGZHOU GERUITE MATERIAL TECHNOLOGY Co Ltd
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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

Be used for high-temperature dust and filter filter core with gas purification and its production and application
Technical field
The present invention relates to the filtering technique of high-temperature dust filtration and gas purification, particularly a kind of high-temperature dust that is used for filters filter core with gas purification and its production and application.
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 in the world countries 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 the China and the world.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of filter core that is used for high-temperature dust filtration and gas purification is provided, 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 preparation method who is used for the filter core of high-temperature dust filtration and gas purification.
A further object of the present invention is to provide a kind of above-mentioned application that is used for the filter core of high-temperature dust filtration and gas purification.
The present invention is achieved through the following technical solutions: a kind of filter core that is used for high-temperature dust filtration and 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 adopted 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 metal sintering fibrofelt heavily is 100~950g/m 2
The material of described filter membrane is a metallic fiber sintered felt, and the unit felt of metal sintering fibrofelt heavily is 100~850g/m 2
Described denitrating catalyst is V 2O 5-WO 3/ TiO 2
A kind of above-mentioned preparation method who is used for the filter core of high-temperature dust filtration and gas purification of the present invention may further comprise the steps:
(1) making of supporter: choose the material that is used to make 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, pass through the high temperature sintering moulding at last, 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 the filter core that is used for 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 at normal temperatures 8 hours; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm 2The filter core of filter area, TiO 2The solid supported amount be controlled at 0.8~1.2g; Then, prepare denitrification catalyst according to commercial 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.
A kind of above-mentioned application that is used for the filter core of high-temperature dust filtration and gas purification of the present invention, after a plurality of cartridge combination that make are become element kit, be installed in the filtering container, filtering container can be used for the 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 when the smoke inlet of filtering container enters container, desulfuration adsorbent and NH are 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, 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 earlier in the porch of filtering container at flue gas, 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 many fields such as traditional 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 filter core that is used for high-temperature dust filtration and 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 adopted 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 metal sintering fibrofelt heavily is 100~950g/m 2
The material of filter membrane 2 is a metallic fiber sintered felt, and the unit felt of metal sintering fibrofelt heavily is 100~850g/m 2
Denitrating catalyst 3 is V 2O 5-WO 3/ TiO 2
A kind of above-mentioned preparation method who is used for the filter core of high-temperature dust filtration and gas purification may further comprise the steps:
(1) making of supporter 1: choose the material that is used to make 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, pass through the high temperature sintering moulding at last, 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 the filter core that is used for 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 at normal temperatures 8 hours; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm 2The filter core of filter area, TiO 2The solid supported amount be controlled at 0.8~1.2g; Then, prepare denitrification catalyst according to commercial 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 application that is used for the filter core of high-temperature dust filtration and 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 the 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 when the smoke inlet 5 of filtering container enters container, desulfuration adsorbent and NH are 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, 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
Supporter 1 is that diameter 50mm, a length 300mm, wall thickness 3mm, filtering accuracy are the 316L powder of stainless steel sintered filter core of 25 μ m in the present embodiment.Supporter 1 is to adopt isostatic cool pressing method-high-temperature vacuum sintering preparation, and wherein, the pressure of isostatic cool pressing compacting is 150Mpa, and sintering temperature is 1230 ℃, and temperature retention time is 2 hours; Then, adopting the method for airless spraying to spray a layer thickness on the surface of supporter is that 0.3mm, filtering accuracy are the filter membrane 2 of 8 μ m; The vacuum-sintering 1.5 hours under 1100 ℃ temperature of dried workpiece; Next, adopt the hole internal burden denitrating catalyst (V of common infusion process at supporter 1 2O 5-WO 3/ TiO 2) 3.The filter core that makes like this can further be processed into the assembly of tubular type filter core, is then assembled in the filtering container, and filtering container can be used for the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
Embodiment two
Supporter 1 is that diameter 80mm, a length 500mm, wall thickness 3mm, filtering accuracy are the Fe of 30 μ m in the present embodiment 3The powder sintered filter core of Al.Supporter 1 is to adopt isostatic cool pressing method-high-temperature vacuum sintering preparation, and wherein, the pressure of isostatic cool pressing compacting is 200Mpa, and sintering temperature is 1250 ℃, and temperature retention time is 2 hours; Then, adopting the method for airless spraying to spray a layer thickness on the surface of supporter 1 is that 0.3mm, filtering accuracy are the filter membrane 2 of 10 μ m; The vacuum-sintering 1.5 hours under 1180 ℃ temperature of dried workpiece; Next, adopt the hole internal burden denitrating catalyst (V of common infusion process at supporter 1 2O 5-WO 3/ TiO 2) 3.The filter core that makes like this can further be processed into the assembly of tubular type filter core, is then assembled in the filtering container, and filtering container can be used for the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
Embodiment three
Supporter 1 is that diameter 50mm, a length 800mm, wall thickness 2.8mm, filtering accuracy are the powder sintered filter core of Hastelloy X of 25 μ m in the present embodiment.Supporter 1 is to adopt isostatic cool pressing method-high-temperature vacuum sintering preparation, and wherein, the pressure of isostatic cool pressing compacting is 180Mpa, and sintering temperature is 1250 ℃, and temperature retention time is 2 hours; Then, adopting the method for airless spraying to spray a layer thickness on the surface of supporter 1 is that 0.2mm, filtering accuracy are the filter membrane 2 of 8 μ m; The vacuum-sintering 1.5 hours under 1150 ℃ temperature of dried workpiece; Next, adopt the hole internal burden denitrating catalyst (V of common infusion process at supporter 1 2O 5-WO 3/ TiO 2) 3.Zhi Bei filter core can further be processed into the assembly of tubular type filter core like this, is then assembled in the filtering container, and filtering container can be used for the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
Embodiment four
Supporter 1 is the 316L stainless steel fibre sintering felt of a slice 300 * 500mm in the present embodiment, and the preparation of supporter 1 is that to be equipped with Unit Weight by dry method nonwoven shop felt legal system be 650g/m 2Idiosome; Filter membrane 2 is the 316L stainless steel fibre sintering felt of another sheet 300 * 500mm, and the preparation of filter membrane 2 is to be 450g/m by felt method shop, dry method nonwoven shop system Unit Weight at first 2Idiosome; Next step is superimposed above-mentioned two idiosomes that are equipped with by dry method shop felt, sintering in the vacuum sintering furnace of packing into, and wherein, the condition of vacuum-sintering is to be incubated 3.5 hours under 1200 ℃ of temperature; Behind the sintering, the filtering accuracy of filter membrane 2 is that 20 μ m, thickness are that 0.25mm, porosity are 78%; The filtering accuracy of supporter 1 is that 40 μ m, thickness are that 0.5mm, porosity are 83%.Next, adopt the hole internal burden denitrating catalyst (V of common infusion process at supporter 1 2O 5-WO 3/ TiO 2) 3.Zhi Bei filter core can further be processed into the assembly of tubular type filter core like this, is then assembled in the filtering container, and filtering container can be used for the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
Embodiment five
Supporter 1 is the Fe-Cr-Al fiber sintering felt serving of a slice 500 * 1000mm in the present embodiment, and the preparation of supporter 1 is that to be equipped with Unit Weight by dry method nonwoven shop felt legal system be 600g/m 2Idiosome; Filter membrane 2 is Fe-Cr-Al fiber sintering felt servings of another sheet 500 * 1000mm, and the preparation of filter membrane 2 is to be 400g/m by felt method shop, dry method nonwoven shop system Unit Weight 2Idiosome; Next step is superimposed above-mentioned two idiosomes that are equipped with by dry method shop felt, sintering in the vacuum sintering furnace of packing into, and wherein, the condition of vacuum-sintering is to be incubated 3.5 hours under 1340 ℃ of temperature; Behind the sintering, the filtering accuracy of filter membrane 2 is that 20 μ m, thickness are that 0.2mm, porosity are 79%; The filtering accuracy of supporter 1 is that 40 μ m, thickness are that 0.5mm, porosity are 83%.Next, adopt the hole internal burden denitrating catalyst (V of common infusion process at supporter 1 2O 5-WO 3/ TiO 2) 3.Zhi Bei filter core can further be processed into the assembly of tubular type filter core like this, is then assembled in the filtering container, and filtering container can be used for the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting 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. according to the described filter core that is used for high-temperature dust filtration and gas purification of claim 1, it is characterized in that described supporter is tubular type or flat supporter.
3. filter filter core with gas purification according to the described high-temperature dust that is used for of claim 1, 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 adopted 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 metal sintering fibrofelt heavily is 100~950g/m 2
4. according to the described filter core that is used for high-temperature dust filtration and gas purification of claim 1, it is characterized in that the material of described filter membrane is a metallic fiber sintered felt, the unit felt of metal sintering fibrofelt heavily is 100~850g/m 2
5. according to the described filter core that is used for high-temperature dust filtration and gas purification of claim 1, it is characterized in that described denitrating catalyst is V 2O 5-WO 3/ TiO 2
6. according to each described preparation method who is used for the filter core of high-temperature dust filtration and gas purification of claim 1~5, it is characterized in that, may further comprise the steps:
(1) making of supporter: choose the material that is used to make 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, pass through the high temperature sintering moulding at last, 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 the filter core that is used for high-temperature dust filtration and gas purification.
7. according to the described preparation method who is used for the filter core of high-temperature dust filtration and gas purification of 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 the described high-temperature dust that is used for of claim 6, it is characterized in that the detailed process of described dipping is: at first be 8%, the TiO of particle mean size 150nm solids content 2Colloid adopt wet impregnation at normal temperatures in the hole of filter core, dry at normal temperatures 8 hours; Then 540 ℃ of temperature lower calcinations 2 hours, according to every 100cm 2The filter core of filter area, TiO 2The solid supported amount be controlled at 0.8~1.2g; Then, prepare denitrification catalyst according to commercial 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. according to each described application that is used for the filter core of high-temperature dust filtration and gas purification of 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 the filtration and the gas cleaning of high-temperature dust in thermal power generation, waste incineration, Ferrous Metallurgy or the petrochemical industry.
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Cited By (25)

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CN103275767A (en) * 2013-05-24 2013-09-04 张晓� Method for separating high-temperature gas containing solid dust and tar gas
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505757A (en) * 1993-08-20 1996-04-09 Sumitomo Electric Industries, Ltd. Corrosion-resistant metal filters
JPH1119477A (en) * 1997-07-04 1999-01-26 Babcock Hitachi Kk Waste gas purifying device and waste gas purification method using the same
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505757A (en) * 1993-08-20 1996-04-09 Sumitomo Electric Industries, Ltd. Corrosion-resistant metal filters
JPH1119477A (en) * 1997-07-04 1999-01-26 Babcock Hitachi Kk Waste gas purifying device and waste gas purification method using the same
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

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