CN212236375U - High-temperature flue gas dust removal device - Google Patents
High-temperature flue gas dust removal device Download PDFInfo
- Publication number
- CN212236375U CN212236375U CN202020697939.9U CN202020697939U CN212236375U CN 212236375 U CN212236375 U CN 212236375U CN 202020697939 U CN202020697939 U CN 202020697939U CN 212236375 U CN212236375 U CN 212236375U
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- Prior art keywords
- dust removal
- porous ceramic
- flue gas
- removal box
- temperature flue
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- 239000000428 dust Substances 0.000 title claims abstract description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000003546 flue gas Substances 0.000 title claims abstract description 29
- 239000000919 ceramic Substances 0.000 claims abstract description 77
- 239000011148 porous material Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010926 purge Methods 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
The embodiment of the application discloses high temperature flue gas dust collector that dust collection efficiency is high for improve dust collection efficiency. For this, the high temperature flue gas dust collector that this application embodiment provided, including the dust removal box, there is negative-pressure air fan at dust removal box top through the tube coupling, the bottom of dust removal box is equipped with the tuber pipe, and dusty air current is followed tuber pipe department gets into in the dust removal box, its characterized in that: the dust removal box is internally provided with a porous ceramic filter element, and the pore diameter of the porous ceramic filter element is distributed in a gradient and degressive manner along the airflow direction in the dust removal box.
Description
Technical Field
The utility model belongs to the technical field of remove dust, especially, relate to a high temperature flue gas dust collector.
Background
The smoke dust discharged from the industries of thermal power, metallurgy, chemical industry, cement and the like has the characteristics of high temperature (about 600-1400 ℃), strong gas corrosivity and the like, and the conventional gas-solid separation dust removal equipment cannot treat the smoke dust at all. Patent CN2017210647731 discloses a novel dust removing device, which completes dust filtration in a box body through the action of a porous ceramic pipe, so as to discharge purified air, and meanwhile, the device can be used in occasions with high temperature and corrosive gas due to the heat resistance and corrosion resistance of the porous ceramic filter pipe, but the above patent still has the problem of low dust removing efficiency.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, one of the objectives of the embodiments of the present application is to provide a high temperature flue gas dust removal device with high dust removal efficiency.
For this, the high temperature flue gas dust collector that this application embodiment provided, including the dust removal box, there is negative-pressure air fan at dust removal box top through the tube coupling, the bottom of dust removal box is equipped with the tuber pipe, and the dusty air current is followed the tuber pipe department gets into in the dust removal box, be equipped with porous ceramic filter element in the dust removal box, porous ceramic filter element's aperture is along airflow direction is the gradient in the dust removal box and progressively reduces the distribution.
In some embodiments, an ash bucket is arranged at the bottom of the dust removal box body, an ash discharge valve is arranged at the bottom of the ash bucket, the air pipe is arranged at the side part of the ash bucket, and a pulse back-blowing assembly is arranged above the porous ceramic filter element in the dust removal box body.
In some embodiments, the pulse back-flushing assembly comprises a purge tube connected to a high-pressure gas source and having a plurality of injection ports aligned with the porous ceramic filter element, and a pulse solenoid valve disposed on the purge tube.
In some embodiments, a support frame is provided on the ash bucket.
In some embodiments, the porous ceramic filter element comprises a plurality of porous ceramic tubes, and the plurality of porous ceramic tubes are uniformly mounted in the dust removal box body through a mounting plate;
the porous ceramic tube is of a U-shaped structure, a through hole matched with the porous ceramic tube is formed in the mounting plate, and the porous ceramic tube is mounted in the through hole.
In some embodiments, the porous ceramic tube is composed of a plurality of porous ceramic tube body units which are sequentially matched and sleeved.
In some embodiments, the porous ceramic tube is fixed on the mounting plate by a compression plate at the top, and a sealing ring is arranged between the porous ceramic tube and the mounting plate.
In some embodiments, a heat exchanger is disposed on the duct.
In some embodiments, the heat exchange medium of the heat exchanger is water or air.
In some embodiments, the porous ceramic tube has a tube diameter of 30-300mm, a length of 1-3 m, a pore diameter in the range of 6-60 μm, and a porosity of 40% -90%.
Compared with the prior art, at least one embodiment of the application has the following beneficial effects:
the porous ceramic filter element is arranged in the dust removal box body, the pore diameter of the porous ceramic filter element is distributed in a gradient and degressive mode along the airflow direction in the dust removal box body, when smoke passes through the porous ceramic filter element in the dust removal box body from bottom to top, dust in the smoke is captured by the porous ceramic filter element, and therefore purification of the smoke is achieved, the pore diameter of the porous ceramic filter element is distributed in a gradient and degressive mode along the smoke flowing direction, gradual grading purification of the smoke can be achieved, and dust removal efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a high-temperature flue gas dust removal device provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pulse back-blowing assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a porous ceramic tube according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the high temperature flue gas dust collector that this application embodiment provided, including dust removal box 1, dust removal box 1 top is connected with negative-pressure air fan 4 through pipeline 3, and the bottom of dust removal box 1 is equipped with tuber pipe 5, and during the dusty air current got into dust removal box 1 from tuber pipe 5, be equipped with porous ceramic filter element 2 in the dust removal box 1, the aperture of porous ceramic filter element 2 was gradient along the interior air current direction of dust removal box and progressively decreases the distribution.
Adopt this application embodiment high temperature flue gas dust collector when purifying the flue gas, high temperature flue gas is under negative pressure fan 4's traction, get into dust removal box 1 from tuber pipe 5 in, and discharge from dust removal box top pipeline behind porous ceramic filter element 2, the flue gas is when passing through porous ceramic filter element 2, the dust in the flue gas will be caught by porous ceramic filter element 2, thereby realize the purification of flue gas, be gradient degressive distribution along the flue gas flow direction because of porous ceramic filter element 2's aperture, thereby can realize the gradual hierarchical purification of flue gas, not only improve dust collection efficiency, and also be favorable to follow-up blowback to porous ceramic filter element 2. In addition, because the porous ceramic filter element 2 has the characteristics of heat resistance and corrosion resistance, the high-temperature flue gas dust removal device can be used in occasions with high temperature and corrosive gas.
Referring to fig. 1, in some possible embodiments, the dust removing device further comprises an ash bucket 7 supported and installed by a support frame 6, an ash discharging valve 8 is arranged at the bottom of the ash bucket 7, an air pipe 5 is installed at one side of the ash bucket 7, a dust removing box body 1 is installed at the top of the ash bucket 7, and a pulse back blowing assembly 9 for performing back blowing on the porous ceramic filter element 2 is arranged in the dust removing box body 1 and above the porous ceramic filter element 2.
In this application embodiment, be equipped with pulse blowback subassembly 9 in dust removal box 1 to can blow off and collect the dust of catching on porous ceramic filter element 2 in ash bucket 7 from porous ceramic filter element 2, through regularly open dust discharging valve 8 with the dust in ash bucket 7 clear out can, not only can effectively prevent that porous ceramic filter element 2 from blockking up, can improve dust collector's dust collection efficiency moreover.
Referring to fig. 2, in detail, the pulse back-blowing assembly 9 includes a purge tube 901 and a pulse solenoid valve 902, the purge tube 901 is connected to a high-pressure air source 903 and is provided with a plurality of injection ports 904 aligned with the porous ceramic filter element 2, the pulse solenoid valve 902 is disposed on the purge tube 901, when a certain amount of dust adheres to the porous ceramic filter element 2, the pulse solenoid valve 902 is opened to allow compressed air to enter the purge tube 901, and the injection ports 904 at the lower portion of the purge tube 901 blow the compressed air to the porous ceramic filter element 2 to blow the dust off the porous ceramic filter element 2, thereby preventing the porous ceramic filter element 2 from being blocked.
Referring to fig. 1, in other possible embodiments, the porous ceramic filter element 2 includes a plurality of porous ceramic tubes 202 mounted in the dust removing case 1 by a mounting plate 201.
Specifically, the porous ceramic tubes 202 are in a U-shaped structure, through holes matched with the porous ceramic tubes 202 are formed in the mounting plate 201, the porous ceramic tubes 202 penetrate through the through holes and are fixedly fixed on the mounting plate 201 through a pressing plate at the top, a sealing ring (not shown in the figure) is arranged between the porous ceramic tubes 202 and the mounting plate 201, and the blowing tube 901 is provided with a jet orifice 904 corresponding to each porous ceramic tube 202.
Referring to fig. 3, in practical design, through controlling the parameters of the porous ceramic preparation process, an integrally continuous porous ceramic tube 202 can be obtained through one-time sintering, and the pore diameter of the porous ceramic tube 202 is changed in a continuous gradient manner. Certainly, the porous ceramic tube 202 may also be formed by matching and sleeving a plurality of porous ceramic tube units 2021 with successively smaller tube diameters, the pore diameters of the porous ceramic tube units are uniform, and only the pore diameter of the outermost porous ceramic tube unit is the largest, and the pore diameter of the innermost porous ceramic tube unit is the smallest, so that the pore diameter of the porous ceramic tube 202 forms gradient change, the manufacturing cost of the porous ceramic tube 202 with the above structure can be greatly reduced, but the pore diameter is not continuously changed in gradient.
In practical application, a heat exchanger (not shown in the figure) can be additionally arranged on the air pipe 5, a heat exchange medium of the heat exchanger can adopt water or air, and the heat exchanger is arranged on the air pipe 5, so that the energy recovery of high-temperature flue gas can be realized, and the energy waste is reduced.
In addition, in the practical design, the diameter of the porous ceramic tube 202 can be controlled to be 30-300mm, the length can be controlled to be 1-3 m, the pore diameter range can be controlled to be 6-60 mu m, and the porosity can be controlled to be 40-90%. The material of the porous ceramic tube 202 may be selected from known porous ceramic materials, such as alumina, zirconia, magnesia, silica, and other oxide materials; composite oxide materials such as cordierite, mullite, forsterite, ferrite and the like; carbide-based materials such as silicon carbide; hydroxide materials such as hydroxyapatite; or inorganic composite materials containing two or more of them, and natural minerals (such as clay, clay mineral, diatomaceous earth, glass residue, tailings, etc.) can also be used.
The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a high temperature flue gas dust collector, includes the dust removal box, there is negative-pressure air fan at dust removal box top through the tube coupling, the bottom of dust removal box is equipped with the tuber pipe, and dusty air current follows the tuber pipe department gets into in the dust removal box, its characterized in that: the dust removal box is internally provided with a porous ceramic filter element, and the pore diameter of the porous ceramic filter element is distributed in a gradient and degressive manner along the airflow direction in the dust removal box.
2. The high-temperature flue gas dust removal device of claim 1, wherein: the dust removal box is characterized in that an ash bucket is arranged at the bottom of the dust removal box body, an ash discharge valve is arranged at the bottom of the ash bucket, an air pipe is arranged on the side portion of the ash bucket, and a pulse back-blowing assembly is arranged above the porous ceramic filter element in the dust removal box body.
3. The high-temperature flue gas dust removal device of claim 2, wherein: the pulse back-blowing assembly comprises a blowing pipe and a pulse electromagnetic valve, the blowing pipe is connected to a high-pressure air source and is provided with a plurality of jet ports aligned with the porous ceramic filter element, and the pulse electromagnetic valve is arranged on the blowing pipe.
4. The high-temperature flue gas dust removal device of claim 3, wherein: the ash bucket is provided with a support frame.
5. The high-temperature flue gas dust removal device according to any one of claims 1 to 4, wherein: the porous ceramic filter element comprises a plurality of porous ceramic tubes; the plurality of porous ceramic tubes are uniformly arranged in the dust removal box body through the mounting plate;
the porous ceramic tube is of a U-shaped structure, a through hole matched with the porous ceramic tube is formed in the mounting plate, and the porous ceramic tube is mounted in the through hole.
6. The high-temperature flue gas dust removal device of claim 5, wherein: the porous ceramic tube is composed of a plurality of porous ceramic tube body units which are sequentially matched and sleeved.
7. The high-temperature flue gas dust removal device of claim 5, wherein: the porous ceramic tube is pressed and fixed on the mounting plate through a pressing plate at the top, and a sealing ring is arranged between the porous ceramic tube and the mounting plate.
8. The high-temperature flue gas dust removal device of claim 5, wherein: and the air pipe is provided with a heat exchanger.
9. The high-temperature flue gas dust removal device of claim 8, wherein: the heat exchange medium of the heat exchanger is water or air.
10. The high-temperature flue gas dust removal device of claim 5, wherein: the diameter of the porous ceramic tube is 30-300mm, the length is 1-3 m, the pore diameter range is 6-60 mu m, and the porosity is 40% -90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697939.9U CN212236375U (en) | 2020-04-30 | 2020-04-30 | High-temperature flue gas dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697939.9U CN212236375U (en) | 2020-04-30 | 2020-04-30 | High-temperature flue gas dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212236375U true CN212236375U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020697939.9U Expired - Fee Related CN212236375U (en) | 2020-04-30 | 2020-04-30 | High-temperature flue gas dust removal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253533A (en) * | 2022-07-13 | 2022-11-01 | 上海市机电设计研究院有限公司 | High-temperature flue gas salt particle filtering and collecting device |
-
2020
- 2020-04-30 CN CN202020697939.9U patent/CN212236375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253533A (en) * | 2022-07-13 | 2022-11-01 | 上海市机电设计研究院有限公司 | High-temperature flue gas salt particle filtering and collecting device |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20201229 |