CN110575727A - Impact spraying type cooling and dedusting tower - Google Patents
Impact spraying type cooling and dedusting tower Download PDFInfo
- Publication number
- CN110575727A CN110575727A CN201910965616.5A CN201910965616A CN110575727A CN 110575727 A CN110575727 A CN 110575727A CN 201910965616 A CN201910965616 A CN 201910965616A CN 110575727 A CN110575727 A CN 110575727A
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- CN
- China
- Prior art keywords
- shell
- layer
- outer shell
- tower
- layers
- Prior art date
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- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 14
- 238000005507 spraying Methods 0.000 title abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 30
- 238000012856 packing Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims 2
- 239000000112 cooling gas Substances 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 23
- 239000003546 flue gas Substances 0.000 abstract description 23
- 239000011229 interlayer Substances 0.000 abstract description 16
- 238000005192 partition Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003595 mist Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
Abstract
The invention discloses an impact spray type cooling and dust removing tower, which comprises an outer shell, an inner shell and a partition plate, wherein an air inlet is arranged on the side surface of the outer shell, a drain outlet is arranged at the bottom of the outer shell, a drain valve is arranged on the drain outlet, an exhaust port is arranged at the top of the outer shell, the top of the inner shell is sealed with the inner side surface of the outer shell, a notch is arranged at the edge of the bottom of the inner shell and forms an interlayer with the inner wall of the outer shell, the partition plate is arranged on the opposite side of the interlayer from the air inlet, a first annular lower spray pipe is arranged at the top of the interlayer, a plurality of spiral diversion sheet layers are arranged in the inner space of the inner shell, a, high-temperature flue gas enters the interlayer from the gas inlet, passes through the spiral flow guide sheet layer after being sprayed by the first annular lower spraying pipe, passes through the packing layer after being sprayed by the third annular lower spraying pipe again, demists, and is discharged out of the dust removal tower through the gas outlet. The invention enhances the spraying, dedusting and cooling effects.
Description
Technical Field
The invention relates to the field of environment-friendly dust removing equipment, in particular to an impact spray type cooling dust removing tower which comprises an outer shell, an inner shell, a partition plate, a first annular lower spray pipe, a second annular lower spray pipe, a spiral flow guide sheet layer, a third annular lower spray pipe and a packing layer.
Background
In the industrial production process, because some equipment such as a blast furnace smelting boiler provides heat required by production through coal-fired fuel oil, a large amount of coal-fired fuel oil high-temperature flue gas can be generated in the process, if the discharged high-temperature flue gas is directly discharged into the atmosphere without being subjected to purification treatment, the environment can be seriously polluted, and therefore, the discharged high-temperature flue gas can be discharged into an external atmospheric space after being subjected to effective dust removal treatment so as to meet the environment-friendly requirement. Because the temperature of the industrial high-temperature flue gas discharged for the first time is too high and the granularity of the dust is large, great difficulty is brought to dust removal treatment, the dust removal efficiency is influenced, and in order to improve the dust removal efficiency and reduce the treatment difficulty, the high-temperature flue gas needs to be pretreated to separate part of large-particle dust or reduce the temperature of the flue gas in advance. Most of the conventional spray dust removal towers spray the flue gas directly entering the tower through a spray pipe to achieve the aim of water mist dust removal, but the dust removal effect of the method is not ideal.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the technical problem of how to enhance the impact spraying dust removal effect of high-temperature flue gas.
In order to solve the technical problem, the technical scheme adopted by the invention is that the impact spraying type cooling and dedusting tower comprises an outer shell, an inner shell and a partition plate, wherein an air inlet is arranged on the side surface of the outer shell, a drain outlet is arranged at the bottom of the outer shell, a drain valve is arranged at the drain outlet, an exhaust port is arranged at the top of the outer shell, the top of the inner shell is sealed with the inner side surface of the outer shell, a notch is arranged at the edge of the bottom of the inner shell and forms an interlayer with the inner wall of the outer shell, the partition plate is arranged on the opposite side of the air inlet in the interlayer, a first annular lower spraying pipe is arranged at the top of the interlayer, a plurality of spiral flow guide sheet layers are arranged in the inner space of the inner shell, a second annular lower spraying pipe is arranged below the flow guide sheet layers, at least two packing layers are arranged in the inner space of the outer shell above the The upper water curtain layer passes through the spiral flow guide sheet layer, is sprayed by the third annular lower spraying pipe again, passes through the packing layer for demisting, and is discharged out of the dust removal tower through the exhaust port.
preferably, the indentations are saw-toothed and evenly distributed.
Preferably, the spiral flow guide sheet layer is three layers, and a distance is kept between the layers to keep smooth air draft.
Preferably, the second annular lower spray pipes are uniformly distributed and are set in quantity according to the cross-sectional area of the spiral flow deflector layer.
Preferably, the third annular lower spray pipes are set in quantity and uniformly distributed according to the cross-sectional area of the filler layer.
preferably, the filler layer is two layers, and a distance is kept between the two layers to keep smooth air draft.
Preferably, the packing layer is filled with environment-friendly small balls to demist the flue gas and prevent water drops from splashing.
Compared with the prior art, the invention increases the spray atomization density of the flue gas through the water curtain layer formed above the gap at the edge of the bottom of the inner shell after the high-temperature flue gas is blocked and sprayed by the inner shell, and enhances the dust removal and cooling effects after the flue gas is guided and sprayed by the spiral guide plate layer and demisted by the packing layer.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, but the present invention is not limited thereto.
FIG. 1 and FIG. 2 show an impact spray type cooling and dust removing tower, which comprises an outer shell 1, an inner shell 2 and a partition plate 3, wherein an air inlet 11 is arranged on the side surface of the outer shell 1, a sewage outlet 12 is arranged at the bottom, the sewage outlet 12 is provided with a sewage valve 13, an exhaust port 14 is arranged at the top, the top of the inner shell 2 is sealed with the inner side surface of the outer shell 1, a notch 21 is arranged at the bottom edge and forms an interlayer 15 with the inner wall of the outer shell 1, the partition plate 3 is arranged on the opposite side of the air inlet 11 of the interlayer 15 to prevent airflow from circularly flowing in the interlayer 15, a first annular lower spray pipe 16 is arranged at the top of the interlayer 15, a plurality of spiral diversion sheet layers 22 are arranged in the inner space of the inner shell 2, a second annular lower spray pipe 23 is arranged below the diversion sheet layers 22, at least two packing layers, high-temperature flue gas enters the interlayer 15 from the gas inlet 11, is sprayed by the first annular lower spraying pipe 16, then passes through the water curtain layer above the notch 21, passes through the spiral flow guide plate layer 22, is sprayed by the third annular lower spraying pipe 18 again, passes through the packing layer 17, is demisted, and then is discharged out of the dust removal tower through the gas outlet 14.
The notches 21 are saw-toothed and evenly distributed.
The spiral guide sheet layer 22 is three layers, and a distance is kept between every two layers to keep smooth air draft.
The second annular lower spray pipes 23 are set in number and uniformly distributed according to the cross-sectional area of the spiral flow guide sheet layer 22.
The third annular lower spray pipes 18 are set in number and uniformly distributed according to the cross-sectional area of the packing layer 17.
Packing layer 17 is two layers, keeps having the smoothness of interval in order to keep convulsions between the layer, and packing layer 17 is filled up the environmental protection bobble in order to strike the defogging to the flue gas, prevents that the drop of water from splashing.
The working principle of the invention is as follows:
When the dust removal tower is in a working state, a bottom blowoff valve 13 of an outer shell 1 in the dust removal tower is closed, water is stored at the bottom of the outer shell 1, the water level of the water is slightly higher than the gap of an inner shell 2 to form a sealed water sealing layer for an interlayer 15, a first annular lower spray pipe 16 arranged at the top of the interlayer 15 circularly extracts water from a bottom reservoir to spray high-temperature flue gas entering the interlayer 15, the high-temperature flue gas enters from an air inlet 11 and then impacts the outer side surface of the inner shell, the speed is reduced, and part of dust falls into the lower reservoir to be deposited under the spraying atomization action of the first annular lower spray pipe 16; meanwhile, a powerful air draft device is externally connected to the top of the outer shell 1, under the action of powerful air draft of the powerful air draft device, upward air flow attraction is formed in the inner space of the inner shell 2, the water level of the water storage tank in the dust removal tower is attracted and improved, a water mist layer formed by a notch 21 on the lower edge of the inner shell 2 is exposed, so that a closed channel 15 below the interlayer 15 is opened, high-temperature flue gas passes through the channel opened below the closed channel 15 and passes through the notch 21 to be washed by the water mist layer above and sprayed by a second annular lower spraying pipe 23, partial dust is continuously discharged and deposited in the water storage tank, then the high-temperature flue gas advances to an upper packing layer 17 under the guidance of a spiral diversion sheet layer 22, after being sprayed by a third annular lower spraying pipe 18, partial dust falls into the water storage tank below to be deposited, and spray water required by the second annular lower spraying pipe 23 and the third annular lower spraying pipe 18 is extracted from the, the high-temperature flue gas passes through the packing layer 17 again to remove mist and is discharged out of the dust removal tower through the exhaust port 14, and the water body of the water tank in the dust removal tower is periodically replaced, so that the dust removal and cooling effects of the dust removal tower are maintained.
Compared with the prior art, the invention increases the spray atomization density of the flue gas through the water curtain layer formed above the gap at the edge of the bottom of the inner shell after the high-temperature flue gas is blocked and sprayed by the inner shell, and enhances the dust removal and cooling effects after the flue gas is guided and sprayed by the spiral guide plate layer and demisted by the packing layer.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (7)
1. The utility model provides an impact fountain cooling gas wash tower, includes shell, inner shell and baffle, the shell side has advanced the air inlet, and the bottom is provided with the drain, the drain is provided with the blowoff valve, the top is provided with the gas vent, inner shell top be equipped with two-layer at least packing layer in the shell inner space, the bottommost the packing layer below is provided with shower under the third annular, a serial communication port, the inner shell top with the shell medial surface is airtight, the bottom border be equipped with the breach and with shell inner wall forms the intermediate layer, the intermediate layer is provided with the opposite side at the air inlet the baffle, the intermediate layer top is provided with shower under the first annular, be equipped with a plurality of spiral water conservancy diversion lamella layers in the inner shell inner space, water conservancy diversion lamella layer below is provided with shower under the.
2. The impingement spray cooling and dust removal tower of claim 1, wherein said gaps are saw-toothed and uniformly distributed.
3. The impingement spray cooling and dust removal tower of claim 1, wherein the spiral deflector layer has three layers, and a space is maintained between the layers.
4. The impingement spray cooling and dust removal tower of claim 1, wherein the second annular lower spray pipes are uniformly distributed and in a predetermined number according to the cross-sectional area of the spiral deflector layer.
5. The impingement spray cooling and dust removal tower of claim 1, wherein the third annular lower spray pipes are uniformly distributed and in a predetermined number according to the cross-sectional area of the packing layer.
6. The impact spray type temperature and dust reducing tower according to claim 1, wherein the filler layer is two layers, and a space is kept between the two layers.
7. The impact spray type temperature-reducing and dust-removing tower of claim 5, wherein the packing layer is filled with environment-friendly pellets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965616.5A CN110575727A (en) | 2019-10-10 | 2019-10-10 | Impact spraying type cooling and dedusting tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965616.5A CN110575727A (en) | 2019-10-10 | 2019-10-10 | Impact spraying type cooling and dedusting tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110575727A true CN110575727A (en) | 2019-12-17 |
Family
ID=68814589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910965616.5A Pending CN110575727A (en) | 2019-10-10 | 2019-10-10 | Impact spraying type cooling and dedusting tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110575727A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205164485U (en) * | 2015-12-08 | 2016-04-20 | 张华军 | Coal -fired boiler smoke purifying device |
| CN108554107A (en) * | 2018-07-02 | 2018-09-21 | 姜玉欣 | A kind of dusty gas Wet-type spray filter collector |
| CN110013753A (en) * | 2019-04-23 | 2019-07-16 | 山东艾比比环保科技有限公司 | Sludge dries waste gas pollution control and treatment system and its application method |
| CN210845749U (en) * | 2019-10-10 | 2020-06-26 | 佛山市尘博仕环保工程有限公司 | Impact spraying type cooling and dedusting tower |
-
2019
- 2019-10-10 CN CN201910965616.5A patent/CN110575727A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205164485U (en) * | 2015-12-08 | 2016-04-20 | 张华军 | Coal -fired boiler smoke purifying device |
| CN108554107A (en) * | 2018-07-02 | 2018-09-21 | 姜玉欣 | A kind of dusty gas Wet-type spray filter collector |
| CN110013753A (en) * | 2019-04-23 | 2019-07-16 | 山东艾比比环保科技有限公司 | Sludge dries waste gas pollution control and treatment system and its application method |
| CN210845749U (en) * | 2019-10-10 | 2020-06-26 | 佛山市尘博仕环保工程有限公司 | Impact spraying type cooling and dedusting tower |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |