CN211635764U - High-efficient wet dedusting device - Google Patents
High-efficient wet dedusting device Download PDFInfo
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- CN211635764U CN211635764U CN201922388144.XU CN201922388144U CN211635764U CN 211635764 U CN211635764 U CN 211635764U CN 201922388144 U CN201922388144 U CN 201922388144U CN 211635764 U CN211635764 U CN 211635764U
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- Prior art keywords
- settling tank
- scrubber
- stage
- pipe
- plate
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- 239000007788 liquid Substances 0.000 claims abstract description 49
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 16
- 239000000706 filtrate Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005406 washing Methods 0.000 abstract description 15
- 239000000047 product Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 description 22
- 239000000126 substance Substances 0.000 description 10
- 239000012065 filter cake Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Abstract
The utility model discloses a high-efficient wet dedusting device, it comprises one-level scrubber, second grade scrubber, one-level subsider, two subsiders, tertiary subsider, plate and frame filter and relevant pipeline. Wherein the inlet of the first-stage scrubber is connected with a dust-containing process gas pipe, and the process gas outlet is connected with the inlet of the second-stage scrubber. The concentrated liquid pipe of one-level scrubber is connected to the one-level settling tank, and the concentrated liquid pipe of second grade scrubber is connected to the second grade settling tank, and the clear liquid overflow pipe of one-level settling tank is connected to the second grade settling tank, and the clear liquid overflow pipe of second grade settling tank is connected to tertiary settling tank, the settling tank solids discharge tube all be connected to the plate and frame filter. The filtrate pipeline of the plate frame filter is connected to a third-stage settling tank. The device of the utility model is suitable for water-insoluble dust treatment or product dust recovery. The dust removal rate can reach 99.98 percent, the washing liquid is recycled, and the comprehensive unit consumption is extremely low.
Description
Technical Field
The utility model relates to a chemical plant device dust administers the field, especially the device that is insoluble in water dust or product dust recovery.
Background
At present, dust generated by chemical devices generally adopts an electric dust removal mode or a cloth bag dust removal mode, the dust removal efficiency of the methods is not high, the comprehensive consumption is high, and the operation period of the devices is short.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to optimize to prior art's weak point, provide a high-efficient wet dedusting device to improve dust collection efficiency, reduce the unit consumption.
The technical scheme of the utility model: a high-efficiency wet dust removal device comprises a primary scrubber, a secondary scrubber, a primary settling tank, a secondary settling tank, a tertiary settling tank, a plate-and-frame filter and related pipelines; wherein the inlet of the first-stage scrubber is connected with a dust-containing process gas pipe, and the process gas outlet pipe of the first-stage scrubber is connected with the inlet of the second-stage scrubber; the concentrated liquid pipe of the primary scrubber is connected to a primary settling tank, the concentrated liquid pipe of the secondary scrubber is connected to a secondary settling tank, the clear liquid overflow pipe of the primary settling tank is connected to a secondary settling tank, the clear liquid overflow pipe of the secondary settling tank is connected to a tertiary settling tank, and the solid discharge pipelines of the primary settling tank, the secondary settling tank and the tertiary settling tank are all connected to a plate-and-frame filter; and a filtrate pipeline of the plate and frame filter is connected to a third-stage settling tank.
The outlets of the first-stage washer and the second-stage washer are provided with pressure gauges, and the second-stage settling tank is provided with a water filling port.
The utility model discloses a principle and application step: comprises seven processing steps: (1) the dusty process gas enters a first-stage scrubber for first-stage washing, and washing liquid in the scrubber is in an atomized spray shape and is in countercurrent contact with the process gas; (2) the process gas after the first-stage washing enters a second-stage washer, washing liquid in the washer is in an atomized spray shape and is in countercurrent contact with the process gas, the process gas is demisted at the outlet of the washer and then is emptied, and the dust removal rate can reach 99.98%; (3) the first-stage washing liquid is changed into concentrated liquid after being washed, the concentrated liquid flows into the first-stage sedimentation through the bottom of the washer, a flocculating agent is added for assisting sedimentation, clear liquid overflows to the second-stage sedimentation, and solid substances contained in the bottom are discharged to a plate-and-frame filter at regular time and filtered. (4) The second-stage washing liquid is changed into concentrated liquid after being washed, the concentrated liquid flows into the second-stage sedimentation through the bottom of the washer, clear liquid overflows to the third-stage sedimentation, and solid substances contained at the bottom are discharged to the plate-and-frame filter at regular time and filtered. (5) The water replenishing port is arranged at the outlet of the secondary sedimentation clear liquid, one part of the secondary sedimentation clear liquid is washed and sprayed in the first stage, one part of the secondary sedimentation clear liquid overflows to the third stage sedimentation, and the solid substances contained at the bottom are discharged to the plate and frame filter at regular time for filtering. (6) And (4) supernatant liquid of the third-stage sedimentation is fed into a second-stage washer, and solid substances contained at the bottom are discharged to a plate-and-frame filter at regular time for filtering. (7) The filtrate of the plate and frame filter returns to the liquid inlet of the third-stage sedimentation, and the filter cake is mechanically transported and stored or sold for sale.
The utility model discloses carried out corresponding optimization on the basis of original device, the change is with low costs, makes dust collection efficiency improve to about 99.8% after implementing, and the comprehensive consumption obtains reducing, simultaneously, adopts the utility model discloses a filter cake contain wet 5% -12%, the filtrating solid content 0.01% -0.1%, no sewage discharge, atmospheric emission particulate matter is far less than national standard.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-first-stage washer, 2-second-stage washer, 3-first-stage settling tank, 4-second-stage settling tank, 5-third-stage settling tank and 6-plate-and-frame filter.
Detailed Description
A high-efficiency wet dust removal device comprises a primary scrubber 1, a secondary scrubber 2, a primary settling tank 3, a secondary settling tank 4, a tertiary settling tank 5, a plate-and-frame filter 6 and related pipelines. Wherein the inlet of the first-stage scrubber 1 is connected with a dust-containing process gas pipe, and the process gas outlet is connected with the inlet of the second-stage scrubber 2. The concentrated liquid pipe of one-level scrubber 1 is connected to one-level subsider 3, and the concentrated liquid pipe of second grade scrubber is connected to second grade subsider 4, and the clear liquid overflow pipe of one-level subsider 3 is connected to second grade subsider 4, and the clear liquid overflow pipe of second grade subsider 4 is connected to tertiary subsider 5, and all subsider solids discharge pipe all are connected to plate filter 6, and the filtrating pipe connection of plate filter 6 is to tertiary subsider 5.
The utility model discloses when using, contain seven grades of processing steps: (1) the dust-containing process gas enters a first-stage scrubber for first-stage washing, washing liquid in the scrubber is in an atomized spraying state and is in countercurrent contact with the process gas, and the solid content of the washing liquid is controlled to be about 1% -3%; (2) the process gas after the first-stage washing enters a second-stage washer, washing liquid in the washer is in an atomized spraying shape and is in countercurrent contact with the process gas, the solid content of the washing liquid is controlled to be about 0.01-0.1%, the process gas is demisted at the outlet of the washer and then is emptied, and the dust removal rate can reach 99.98%; (3) the first-stage washing liquid is changed into concentrated liquid after being washed, the concentrated liquid flows into the first-stage sedimentation through the bottom of the washer, a flocculating agent is added for assisting sedimentation, clear liquid overflows to the second-stage sedimentation, and solid substances contained in the bottom are discharged to a plate-and-frame filter at regular time and filtered. (4) The second-stage washing liquid is changed into concentrated liquid after being washed, the concentrated liquid flows into the second-stage sedimentation through the bottom of the washer, clear liquid overflows to the third-stage sedimentation, and solid substances contained at the bottom are discharged to the plate-and-frame filter at regular time and filtered. (5) The water replenishing port is arranged at the outlet of the secondary sedimentation clear liquid, one part of the secondary sedimentation clear liquid is washed and sprayed in the first stage, one part of the secondary sedimentation clear liquid overflows to the third stage sedimentation, and the solid substances contained at the bottom are discharged to the plate and frame filter at regular time for filtering. (6) And (4) supernatant liquid of the third-stage sedimentation is fed into a second-stage washer, and solid substances contained at the bottom are discharged to a plate-and-frame filter at regular time for filtering. (7) The filtrate of the plate and frame filter returns to the liquid inlet of the third-stage sedimentation, and the filter cake is mechanically transported and stored or sold for sale. The moisture content of the filter cake is 5% -12%, and the solid content of the filtrate is 0.01% -0.1%.
Claims (2)
1. A high-efficiency wet dust removal device is characterized by comprising a primary scrubber (1), a secondary scrubber (2), a primary settling tank (3), a secondary settling tank (4), a tertiary settling tank (5), a plate-and-frame filter (6) and related pipelines; wherein the inlet of the first-stage scrubber (1) is connected with a dust-containing process gas pipe, and the process gas outlet pipe of the first-stage scrubber (1) is connected with the inlet of the second-stage scrubber (2); the concentrated liquid pipe of the primary scrubber (1) is connected to a primary settling tank (3), the concentrated liquid pipe of the secondary scrubber (2) is connected to a secondary settling tank (4), the clear liquid overflow pipe of the primary settling tank (3) is connected to a secondary settling tank (4), the clear liquid overflow pipe of the secondary settling tank (4) is connected to a tertiary settling tank (5), and the solid discharge pipelines of the primary settling tank (3), the secondary settling tank (4) and the tertiary settling tank (5) are all connected to a plate-and-frame filter (6); and a filtrate pipeline of the plate and frame filter (6) is connected to the third-stage settling tank (5).
2. The device for high-efficiency wet dust removal according to claim 1, wherein the outlets of the primary scrubber (1) and the secondary scrubber (2) are provided with pressure gauges, and the secondary settling tank (4) is provided with a water filling port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388144.XU CN211635764U (en) | 2019-12-26 | 2019-12-26 | High-efficient wet dedusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388144.XU CN211635764U (en) | 2019-12-26 | 2019-12-26 | High-efficient wet dedusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211635764U true CN211635764U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388144.XU Active CN211635764U (en) | 2019-12-26 | 2019-12-26 | High-efficient wet dedusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211635764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841398A (en) * | 2019-12-26 | 2020-02-28 | 瓮福（集团）有限责任公司 | A kind of high-efficiency wet dust removal method and device |
-
2019
- 2019-12-26 CN CN201922388144.XU patent/CN211635764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841398A (en) * | 2019-12-26 | 2020-02-28 | 瓮福（集团）有限责任公司 | A kind of high-efficiency wet dust removal method and device |
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