CN216825278U - From metal filter bag that has catalytic denitration function - Google Patents
From metal filter bag that has catalytic denitration function Download PDFInfo
- Publication number
- CN216825278U CN216825278U CN202122374747.1U CN202122374747U CN216825278U CN 216825278 U CN216825278 U CN 216825278U CN 202122374747 U CN202122374747 U CN 202122374747U CN 216825278 U CN216825278 U CN 216825278U
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- China
- Prior art keywords
- mesh layer
- filter bag
- metal filter
- catalyst
- stratum reticulare
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 39
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 239000000178 monomer Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 abstract description 16
- 239000000428 dust Substances 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- -1 iron-chromium-aluminum Chemical compound 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Abstract
A metal filter bag with a catalytic denitration function relates to a metal filter bag. The novel filter bag comprises a filter bag body, wherein the filter bag body comprises a shell, a coarse mesh layer is arranged on the inner side wall of the shell, a catalyst film is arranged on the inner side wall of the coarse mesh layer, a fine mesh layer is arranged on the inner side wall of the catalyst film, the catalyst film is clamped between the coarse mesh layer and the fine mesh layer, and a connecting piece penetrates through the coarse mesh layer, the catalyst film and the fine mesh layer. The inner side of the metal filter bag is sequentially attached with the coarse mesh layer and the fine mesh layer, and the catalyst membrane is attached between the coarse mesh layer and the fine mesh layer, so that when smoke dust passes through the metal filter bag from bottom to top, the smoke dust is filtered by the coarse mesh layer and the fine mesh layer and is fully contacted and reacted with the catalyst membrane between the coarse mesh layer and the fine mesh layer, and therefore the catalyst and the metal filter bag form an integrated structure, the space of equipment is greatly saved, steel consumption is reduced, and efficiency is improved.
Description
Technical Field
The utility model relates to an environmental protection dust collecting equipment technical field, concretely relates to metal filter bag from having catalytic denitration function.
Background
Currently, with the development of environmental protection technology, the use of metal filter bags is more and more extensive, and different from the material of the traditional filter bag, the metal filter bag is made of stainless steel materials, has high temperature resistance, and the temperature of the filterable flue gas can reach 400 ℃, and the temperature of the metal filter bag made of iron-chromium-aluminum materials can even reach 1000 ℃. The metal filter bag is used for replacing the traditional filter bag to treat high-temperature flue gas, so that the utilization rate of waste heat resources can be improved, the breakage rate of the filter bag is reduced, and the abrasion of subsequent equipment can be reduced.
Chinese patent publication No. CN113426236A, an integrated apparatus for desulfurization, denitrification and dust removal of industrial waste gas, comprising an air intake mechanism, a filtering mechanism and an exhaust mechanism which are sequentially arranged from bottom to top and are communicated with each other; the air inlet mechanism comprises a water storage tank, an air inlet device and a spraying device which are arranged in the water storage tank; the filtering mechanism comprises a filtering shell, an air extracting device arranged on the filtering shell, and a primary filtering device and a secondary filtering device which are arranged in the filtering shell, wherein the secondary filtering device is arranged in the primary filtering device; the exhaust mechanism is arranged on the filtering mechanism and comprises a catalytic device and a catalytic filtering device which are arranged in sequence; during dust removal, waste gas is sequentially dedusted by the air inlet device, the spraying device, the primary filtering device and the secondary filtering device, enters the catalytic device for denitration and catalysis, and is discharged after being filtered by the catalytic filtering device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide the metal filter bag from having catalytic denitration function, it is through the inboard at the metal filter bag in proper order with thick stratum reticulare and thin stratum reticulare, attach the catalyst membrane of one deck in thick stratum reticulare and thin stratum reticulare simultaneously, this mode makes when the smoke and dust is by down up through the metal filter bag, its smoke and dust filters through thick stratum reticulare and thin stratum reticulare on the one hand, and with the catalyst membrane between the two abundant contact and reaction, thereby make catalyst and metal filter bag constitute the integral structure, the space of equipment has greatly been practiced thrift, the steel consumption has been reduced, and efficiency has been improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the metal filter bag with the catalytic denitration function comprises a filter bag monomer 1, wherein the filter bag monomer 1 comprises a shell 11, a coarse mesh layer 12 is arranged on the inner side wall of the shell 11, a catalyst film 13 is arranged on the inner side wall of the coarse mesh layer 12, a fine mesh layer 14 is arranged on the inner side wall of the catalyst film 13, the catalyst film 13 is clamped between the coarse mesh layer 12 and the fine mesh layer 14, and a connecting piece 15 penetrates through the coarse mesh layer 12, the catalyst film 13 and the fine mesh layer 14.
Furthermore, a top bag opening flange 2 is arranged above the filter bag single body 1.
Further, the connecting pieces 15 are annularly arranged at equal intervals by taking the central line of the filter bag single body 1 as an axis.
Furthermore, the number of the connecting pieces 15 is 6-8.
The utility model discloses a theory of operation:
the utility model discloses a filter bag monomer 1 sets up thick stratum reticulare 12 at its inside wall of the casing 11 in the outside, and the inboard of thick stratum reticulare 12 is equipped with catalyst membrane 13 and thin stratum reticulare 14 in proper order, and thick stratum reticulare 12 and thin stratum reticulare 14 press from both sides catalyst membrane 13 between, and be equipped with connecting piece 15 between the three, and then make thick stratum reticulare 12, catalyst membrane 13 and thin stratum reticulare 14 combine into one whole.
The utility model discloses the during operation, its smoke and dust gets into from the below of filter bag monomer 1, the flue gas is after entering into filter bag monomer 1, the outside that the smoke and dust enters into fine mesh layer 14 after the filtration of fine mesh layer 14 in proper order contacts and reacts with catalyst membrane 13, later filtration through coarse mesh layer 12, coarse mesh layer 12 forms the pore gradient with fine mesh layer 14, make equipment have higher filter fineness and great pollutant carrying capacity, the flue gas carries out abundant contact rather than rising the in-process, gas outgoing after will handling through exhaust passage at last.
After the technical scheme is adopted, the utility model discloses beneficial effect does:
1. the utility model discloses an it has thick stratum reticulare and thin stratum reticulare in proper order to attach at the inboard of metal filter bag, attach the catalyst membrane of one deck in the while between thick stratum reticulare and thin stratum reticulare, this mode makes when the smoke and dust from bottom to top passes through the metal filter bag, its smoke and dust filters through thick stratum reticulare and thin stratum reticulare on the one hand, and fully contact and react with the catalyst membrane between the two, thereby make catalyst and metal filter bag constitute integrated structure, it compares and adopts the mode of setting up the catalyst room alone with the tradition, the space of equipment has been greatly practiced thrift, the steel consumption has been reduced;
2. the utility model discloses handling the low nitrogen oxide to certain concentration, its catalytic efficiency can reach more than 60%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view in the direction of a-a in fig. 1.
Description of reference numerals: the filter bag comprises a filter bag single body 1, a shell 11, a coarse mesh layer 12, a catalyst membrane 13, a fine mesh layer 14 and a connecting piece 15.
Detailed Description
Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the novel filter bag comprises three filter bag bodies 1, wherein the number of the filter bag bodies 1 is three, each filter bag body 1 comprises a shell 11, a coarse mesh layer 12 is arranged on the inner side wall of each shell 11, a catalyst film 13 is arranged on the inner side wall of each coarse mesh layer 12, each catalyst film 13 is an SCR (selective catalytic reduction) catalytic function film, a fine mesh layer 14 is arranged on the inner side wall of each catalyst film 13, each catalyst film 13 is clamped between the corresponding coarse mesh layer 12 and the corresponding fine mesh layer 14, and a connecting piece 15 penetrates through the coarse mesh layer 12, the catalyst film 13 and the fine mesh layer 14.
And a top bag opening flange 2 is arranged above the filter bag monomer 1, and the top bag opening flange 2 is used for connecting an upper connecting piece.
The connecting pieces 15 are annularly arranged at equal intervals by taking the central line of the filter bag single body 1 as an axis, and the interval is 30 cm.
The number of the connecting pieces 15 is 6.
In the filter bag unit 1 of the present embodiment, the coarse mesh layer 12 is provided on the inner side wall of the outermost casing 11, the catalyst membrane 13 and the fine mesh layer 14 are provided in this order on the inner side of the coarse mesh layer 12, the catalyst membrane 13 is sandwiched between the coarse mesh layer 12 and the fine mesh layer 14, and the connecting member 15 is provided between the three, so that the coarse mesh layer 12, the catalyst membrane 13 and the fine mesh layer 14 are integrated into a whole.
When the device works, smoke dust enters from the lower part of the filter bag single body 1, after the smoke gas enters the filter bag single body 1, the smoke dust sequentially enters the outer side of the fine mesh layer 14 after being filtered by the fine mesh layer 14 to be in contact with the catalyst film 13 and react, then the smoke gas is filtered by the coarse mesh layer 12, a pore gradient is formed between the coarse mesh layer 12 and the fine mesh layer 14, the device has high filtering precision and large pollutant carrying capacity, the smoke gas is in full contact with the smoke gas in the rising process, and finally the treated gas is discharged through the exhaust channel.
After adopting above-mentioned technical scheme, this embodiment beneficial effect does:
1. in the embodiment, the inner side of the metal filter bag is sequentially attached with the coarse mesh layer and the fine mesh layer, and meanwhile, the catalyst membrane is attached between the coarse mesh layer and the fine mesh layer, so that when smoke dust passes through the metal filter bag from bottom to top, the smoke dust is filtered by the coarse mesh layer and the fine mesh layer on one hand and is fully contacted and reacted with the catalyst membrane between the coarse mesh layer and the fine mesh layer, and thus the catalyst and the metal filter bag form an integrated structure;
2. the catalytic efficiency of the method can reach more than 60% for treating low nitrogen oxides with certain concentration.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. From metal filter bag that has catalytic denitration function, its characterized in that: it contains filter bag monomer (1), and filter bag monomer (1) contains casing (11), is equipped with thick stratum reticulare (12) on the inside wall of casing (11), is equipped with catalyst membrane (13) on the inside wall of thick stratum reticulare (12), is equipped with thin stratum reticulare (14) on the inside wall of catalyst membrane (13), and catalyst membrane (13) are pressed from both sides between thick stratum reticulare (12) and thin stratum reticulare (14), thick stratum reticulare (12), catalyst membrane (13) and thin stratum reticulare (14) between run through and be equipped with connecting piece (15).
2. The metal filter bag with the catalytic denitration function as claimed in claim 1, wherein: and a top bag opening flange (2) is arranged above the filter bag single body (1).
3. The metal filter bag with the catalytic denitration function as claimed in claim 1, wherein: the connecting pieces (15) are annularly arranged at equal intervals by taking the central line of the filter bag single body (1) as an axis.
4. The metal filter bag with the catalytic denitration function as claimed in claim 3, wherein: the number of the connecting pieces (15) is 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122374747.1U CN216825278U (en) | 2021-09-29 | 2021-09-29 | From metal filter bag that has catalytic denitration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122374747.1U CN216825278U (en) | 2021-09-29 | 2021-09-29 | From metal filter bag that has catalytic denitration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216825278U true CN216825278U (en) | 2022-06-28 |
Family
ID=82082862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122374747.1U Active CN216825278U (en) | 2021-09-29 | 2021-09-29 | From metal filter bag that has catalytic denitration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216825278U (en) |
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2021
- 2021-09-29 CN CN202122374747.1U patent/CN216825278U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 201, Building B8, No. 240, Jiefang North Road, Xinluo District, Longyan, Fujian Province, 364000 Patentee after: Fujian Zhihe Environmental Protection Co.,Ltd. Address before: 361026 No. 130, Houxiang South Road, Xinyang Industrial Zone, Haicang District, Xiamen City, Fujian Province Patentee before: Xiamen Zhihe Environmental Protection Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |