CN209362201U - A kind of molten sulphur washing tail gas device - Google Patents
A kind of molten sulphur washing tail gas device Download PDFInfo
- Publication number
- CN209362201U CN209362201U CN201821761372.6U CN201821761372U CN209362201U CN 209362201 U CN209362201 U CN 209362201U CN 201821761372 U CN201821761372 U CN 201821761372U CN 209362201 U CN209362201 U CN 209362201U
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- Prior art keywords
- alkali cleaning
- water
- washing
- tail gas
- molten sulphur
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Abstract
The utility model belongs to coke oven gas desulfurization processing technology field, discloses a kind of molten sulphur washing tail gas device, handles the problems in molten sulphur tail gas to solve the prior art.The device includes water scrubber, side is equipped with alkali cleaning pond in water scrubber, the lower part of water scrubber is connected with water-circulating pump, the outlet of water-circulating pump is connected with washing export pipeline, washing export pipeline is connect with the washing spray device being arranged at the top of water scrubber, the lower part of water scrubber is connected with inlet exhaust gas pipeline, inlet exhaust gas piping connection has exhaust fan, the top of water scrubber connects caustic wash tower, the top of caustic wash tower is equipped with alkali cleaning spray equipment, alkali cleaning spray equipment is connected with alkali cleaning export pipeline, alkali cleaning export pipeline is connected with alkali cleaning pump, the top of mist collecting column is equipped with offgas outlet, the utility model, which has, washs the harmful substances such as hydrogen sulfide in molten sulphur tail gas, realize the function of molten sulphur tail gas qualified discharge, emission compliance rate is high, occupied area is small, it is maintainable strong, maintenance is small, it is reliable for operation.
Description
Technical field
The utility model relates to coke oven gas desulfurization processing technology fields, and in particular to a kind of molten sulphur washing tail gas device.
Background technique
In coal chemical enterprise, coke-stove gas could use after desulfurization, and Desulphurization Technology Coke Oven Gas is more, wherein HPF ammonia
Method desulfurization is that there is the sulfur removal technology of perfect knowledge property right to make extensively because simple process, operating cost are low in coking industry in China
With.During the HPF ammonia process of desulfurization, the hydrogen sulfide in coal gas is oxidized to sulphur simple substance, is commonly called as sulphur foam, and the processing of sulphur foam is general
Using filtration method and sulfur melting method, the life sulphur subsequent processing that filtration method generates is difficult, the ripe sulphur relative benefit of sulfur melting method production
Reason, but the biggish molten sulphur tail gas of pollution can be generated during molten sulphur, it melts containing substances such as hydrogen sulfide in sulphur tail gas, only by individual
Washing or alkali cleaning are difficult qualified discharge, build the problem of double tower faces lack of space again for the desulphurization system to have come into operation, mesh
Before, domestic a tower compound molten sulphur washing tail gas device, the prior art not yet can not solve above-mentioned technical problem.
Utility model content
Purpose of the utility model is to solve the problems in molten sulphur tail gas of prior art processing to provide a kind of land occupation
Area is small, the stronger molten sulphur washing tail gas device of practicability.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of molten sulphur washing tail gas device, including water scrubber, side is equipped with alkali cleaning pond in water scrubber, and the lower part of water scrubber connects
It is connected to water-circulating pump, the outlet of water-circulating pump is connected with washing export pipeline, and washing export pipeline and setting are at the top of water scrubber
Washing spray device connection, be connected with inlet exhaust gas pipeline in the middle part of water scrubber, inlet exhaust gas piping connection has exhaust fan,
The top of water scrubber connects caustic wash tower, and the top of caustic wash tower is equipped with alkali cleaning spray equipment, and alkali cleaning spray equipment is connected with alkali cleaning and goes out
Mouth pipeline, alkali cleaning export pipeline are connected with alkali cleaning pump, and alkali cleaning pump is connect with alkali cleaning pond, and the top of caustic wash tower is equipped with mist collecting column, and
Water scrubber, caustic wash tower and mist collecting column are connected, and the middle part of mist collecting column is equipped with offgas outlet equipped with mist layer, the top of mist collecting column is caught,
H2S detector is additionally provided on offgas outlet.
Further, washing export pipeline is equipped with water circulating regulation valve and water circular flow meter, on alkali cleaning export pipeline
Equipped with alkali cleaning regulating valve and alkali cleaning flowmeter, and water circulating regulation valve, water circular flow meter, alkali cleaning regulating valve and alkali cleaning flow
Meter is respectively connected with PLC controller, and PLC controller is also connect with H2S detector.
Further, the lower part of water scrubber is also connected with water supply pipe.
Further, lye supplement pipe is connected on alkali cleaning pond, and the top in alkali cleaning pond is also connected with return pipe, return pipe
The other end be connected to the lower part of caustic wash tower.
Further, the top of washing spray device is equipped with exhaust gas channel, and exhaust gas channel includes and washing spray device top
The tail gas chamber of portion's connection and the passway that tail gas top of chamber is arranged in, passway is connected to the bottom of caustic wash tower.
Exhaust gas channel is connected to the bottom of caustic wash tower.
Further, inlet exhaust gas pipeline is equipped with tail gas valve.
Further, washing spray device includes the water main connecting with washing export pipeline, is laid on water main
Multiple points of water sprayer tubes, divide on water sprayer tube and are laid with multiple spray heads.
Further, alkali cleaning spray equipment includes the main alkali liquor pipe connecting with alkali cleaning export pipeline, is evenly distributed on main alkali liquor pipe
Equipped with multiple points of lye spray tubes, divides on lye spray tube and be laid with multiple spray heads.
Further, catching mist layer is stainless steel wire filler for flower ring or high polymer printing ring filler.
Further, the import of water-circulating pump is equipped with water and recycles imported valve, and the outlet of water-circulating pump is recycled equipped with water
Mouth valve, the import of alkali cleaning pump are equipped with alkali cleaning imported valve, and the outlet of alkali cleaning pump is equipped with alkali cleaning outlet valve.
The utility model compared with the existing technology, has the advantages that
The molten sulphur washing tail gas device of the utility model by water scrubber side alkali cleaning pond is installed, connect on water scrubber
Water-circulating pump, water-circulating pump are connect with the washing spray device at the top of water scrubber, and connect setting alkali cleaning in the top of water scrubber
Alkali cleaning spray equipment is arranged in tower, the top of caustic wash tower, and alkali cleaning spray equipment and alkali cleaning pump connect, when tail gas enters in water scrubber
Afterwards, washed first by washing spray device, later wash after tail gas using alkali cleaning spray equipment wash, rear molding
Gas enters mist collecting column by exhaust gas channel, flows out later from offgas outlet using mist layer is caught.The utility model has washing molten
The harmful substances such as hydrogen sulfide in sulphur tail gas realize the function of molten sulphur tail gas qualified discharge, the utility model and washing, alkali cleaning single column
It compares, has the advantages that emission compliance rate is high, compared with split type washing caustic wash tower, have occupied area small, it is maintainable strong,
Maintenance is small, advantage reliable for operation.
The washing export pipeline of the utility model is equipped with water circulating regulation valve and water circular flow meter, alkali cleaning export pipeline
It is equipped with alkali cleaning regulating valve and alkali cleaning flowmeter, and water circulating regulation valve, water circular flow meter, alkali cleaning regulating valve and alkali cleaning stream
Meter is connect with PLC controller, and PLC controller is also connect with H2S detector.The numerical signal of hydrogen sulfide passes through vulcanization
Hydrogen detector is conveyed to PLC controller, and operator can recycle the aperture of water regulating valve and alkali cleaning regulating valve by remote adjustment,
Washing water (lye amount) is increased or decreased, keeps Hydrogen Sulfide Tail Gas stable content up to standard.It realizes to exhaust emissions ingredient
Effective monitoring, and diluted alkaline fountain height can be adjusted according to emission harmful components numerical value at any time, realize process monitoring.Structure letter
It is single, it operates more convenient.
Water supply pipe is also connected on the water scrubber of the utility model, water supply pipe is connect with water system, is realized at any time to water
Wash the supply of the water in tower.
Lye supplement pipe is also connected on the alkali cleaning pond of the utility model, lye supplement pipe connect with for alkali system, realizes
Supply to the lye amount in alkali cleaning pond.The top in alkali cleaning pond is equipped with return pipe, and the lye after washing can be flowed by return pipe
Caustic wash tower.
The top of the washing spray device of the utility model is equipped with exhaust gas channel, so that the tail gas after washing is not direct
Into caustic wash tower, but caustic wash tower is entered by exhaust gas channel, slow down the speed that tail gas is contacted with lye, so that alkali cleaning is more
Sufficiently.
The inlet exhaust gas pipeline of the utility model is equipped with tail gas valve, enters water scrubber for controlling tail gas.
The washing spray device of the utility model includes that the water main connecting with washing export pipeline connects, on water main
Multiple points of water sprayer tubes are laid with, water sprayer tube is divided to be equipped with spray head.Alkali cleaning spray equipment includes connecting with alkali cleaning export pipeline
The main alkali liquor pipe connect connects, and is laid with multiple points of lye spray tubes on main alkali liquor pipe, and lye spray tube is divided to be equipped with multiple sprays
Drench head.The setting of multiple spray tubes increases the contact area of tail gas and liquid, keeps washing or alkali cleaning more abundant.
The mist layer of catching of the utility model is stainless steel wire filler for flower ring or high polymer printing ring filler.Make tail gas by catching mist layer
Rise outflow, while also obstructing liquid.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model washing spray device.
Fig. 3 is the structural schematic diagram of the alkali cleaning spray equipment of the utility model.
Appended drawing reference meaning is as follows: 1. water scrubbers；2. alkali cleaning pond；3. water supply pipe；4. water-circulating pump；5. inlet exhaust gas
Pipeline；6. exhaust fan；7. washing export pipeline；8. washing spray device；9. caustic wash tower；10. alkali cleaning spray equipment；
11. mist collecting column；12. offgas outlet；13. H2S detector；14. alkali cleaning regulating valve；15. exhaust gas channel；16. alkali cleaning
Export pipeline；17. alkali cleaning pumps；18. lye supplement pipe；19. return pipe；20. water circulating regulation valve；21. catching mist layer；22.
Water main；23. point water sprayer tube；24. main alkali liquor pipe；25. point lye spray tube；26. water circular flow meter；27. air hose valve
Door；28. alkali cleaning flowmeter；29. PLC controller.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1-3, a kind of molten sulphur washing tail gas device, including water scrubber 1, side is equipped with alkali cleaning pond in water scrubber 1
2, be also connected with lye supplement pipe 18 on alkali cleaning pond 2, and the top in alkali cleaning pond 2 is connected with return pipe 19, return pipe 19 it is another
End is connected to the lower part of caustic wash tower 9.The lower part of water scrubber 1 is also connected with water supply pipe 3.The lower part of water scrubber 1 is connected with water circulation
Pump 4, the import of water-circulating pump 4 are equipped with water and recycle imported valve, and the outlet of water-circulating pump 4 is equipped with water loop exit valve, and water follows
The outlet of ring pump 4 is connected with washing export pipeline 7, washing export pipeline 7 and the washing spray device that 1 top of water scrubber is arranged in
8 connections, washing spray device 8 include the water main 22 connecting with washing export pipeline 7, and water main 22 is fixed on the 1 of water scrubber
Top is laid with multiple points of water sprayer tubes 23 on water main 22, divides on water sprayer tube 23 and be laid with multiple spray heads.Washing
The middle part of tower 1 is connected with inlet exhaust gas pipeline 5, and inlet exhaust gas pipeline 5 is equipped with tail gas valve 27.Inlet exhaust gas pipeline 5 connects
There is exhaust fan 6, the top of water scrubber 1 connects caustic wash tower 9, and the top of washing spray device 8 is equipped with exhaust gas channel 15, and tail gas is logical
Road 15 includes the tail gas chamber being connected to at the top of washing spray device 8 and the passway that tail gas top of chamber is arranged in, passway with
The bottom of caustic wash tower 9 is connected to.The top of caustic wash tower 9 is equipped with alkali cleaning spray equipment 10, and alkali cleaning spray equipment 10 includes going out with alkali cleaning
The main alkali liquor pipe 24 that mouth pipeline 16 connects, main alkali liquor pipe 24 are fixed on the top of caustic wash tower 9, are laid on main alkali liquor pipe 24 more
It is a to divide lye spray tube 25, divide on lye spray tube 25 and is laid with multiple spray heads.Alkali cleaning spray equipment 10 is connected with alkali cleaning
Export pipeline 16, alkali cleaning export pipeline 16 are connected with alkali cleaning pump 17, and the import of alkali cleaning pump 17 is equipped with alkali cleaning imported valve, alkali cleaning pump
17 outlet is equipped with alkali cleaning outlet valve.Alkali cleaning pump 17 is connect with alkali cleaning pond 2, and the top of caustic wash tower 9 is equipped with mist collecting column 11, and water
It washes tower 1, caustic wash tower 9 and mist collecting column 11 to be connected, mist layer 21 is caught equipped with mist layer 21 is caught as stainless steel wire flower in the middle part of mist collecting column 11
Ring filler or high polymer printing ring filler.The top of mist collecting column 11 is equipped with offgas outlet 12, is additionally provided with hydrogen sulfide on offgas outlet 12
Detector 13.It washes export pipeline 7 and is equipped with water circulating regulation valve 20 and water circular flow meter 26, set on alkali cleaning export pipeline 16
Have alkali cleaning regulating valve 14 and an alkali cleaning flowmeter 28, and water circulating regulation valve 20, water circular flow meter 26, alkali cleaning regulating valve 14 and
Alkali cleaning flowmeter 28 is respectively connected with PLC controller 29, and PLC controller 29 is also connect with H2S detector 13.Water scrubber 1, alkali
Wash tower 9, mist collecting column 11 be carbon steel or stainless steel anti-corrosion cylindrical cavity.
Before work, first checks for confirmation washing system electricity, water supply normally, regulation liquid level, alkali cleaning are filled in water scrubber 1
So that liquid level is reached specified value with alkali in pond 2, and detects alkali concentration and reach technique requirement.H2S detector is opened, confirmation is existing
The signal of field and PLC controller 29 is normal.The alkali cleaning outlet valve standard-sized sheet for checking confirmation alkali cleaning pump 17, by alkali cleaning regulating valve 14
Standard-sized sheet, starting alkali cleaning pump 17, slowly opens alkali cleaning imported valve, and washing soda liquid measure is adjusted to maximum.Check confirmation water circulation
The water loop exit valve wide open of pump 4, by 20 standard-sized sheet of water circulating regulation valve, boiled water circulating pump 4 slowly opens water and recycles inlet valve
Water is adjusted to maximum by door.Start exhaust fan 6, slowly opens tail gas valve 27, the aperture of tail gas valve 27 is adjusted to
Maximum rises after tail gas enters in water scrubber 1, and the spray head of washing spray device 8 starts spray washing tail gas, later tail gas
Rise, into exhaust gas channel 15, overflows into caustic wash tower 9, the spray of alkali cleaning spray equipment 10 from the top of exhaust gas channel 15 later
Leaching head sprinkling lye further washs tail gas, and the tail gas washed later flows out after catching mist layer 21 from offgas outlet 12, sees
The numerical value of H2S detector 13 is examined, standard value is such as far below, remotely gradually turns the aperture of alkali cleaning regulating valve 14 down, and then turn down
Lye fountain height is such as adjusted to the vertical still very low of hydrogen sulfide when minimum, can stop alkali cleaning.It further can remotely be adjusted when still relatively low
The aperture of high water circulating regulation valve 20, to turn washing water down.When hydrogen sulfide is higher, opening for water circulating regulation valve 20 is first turned up
Degree is to be turned up water spray, then the aperture of alkali cleaning regulating valve 14 is turned up liquid alkaline fountain height is turned up.
Claims (10)
1. a kind of molten sulphur washing tail gas device, it is characterized in that: including water scrubber (1), the side in water scrubber (1) is equipped with alkali cleaning pond
(2), the lower part of water scrubber (1) is connected with water-circulating pump (4), and the outlet of water-circulating pump (4) is connected with washing export pipeline (7),
Washing export pipeline (7) is connect with the washing spray device (8) being arranged at the top of water scrubber (1), the middle part connection of water scrubber (1)
Have inlet exhaust gas pipeline (5), inlet exhaust gas pipeline (5) is connected with exhaust fan (6), and water scrubber is connected with alkali cleaning above (1)
The top of tower (9), caustic wash tower (9) is equipped with alkali cleaning spray equipment (10), and alkali cleaning spray equipment (10) is connected with alkali cleaning export pipeline
(16), alkali cleaning export pipeline (16) be connected with alkali cleaning pump (17), alkali cleaning pump (17) connect with alkali cleaning pond (2), caustic wash tower (9) it is upper
Side is equipped with mist collecting column (11), and water scrubber (1), caustic wash tower (9) and mist collecting column (11) are connected, and the middle part of mist collecting column (11) is equipped with
It catches mist layer (21), the top of mist collecting column (11) is equipped with offgas outlet (12), and offgas outlet is additionally provided with H2S detector on (12)
(13).
2. a kind of molten sulphur washing tail gas device according to claim 1, it is characterized in that: on the washing export pipeline (7)
Equipped with water circulating regulation valve (20) and water circular flow meter (26), alkali cleaning export pipeline (16) be equipped with alkali cleaning regulating valve (14) and
Alkali cleaning flowmeter (28), and water circulating regulation valve (20), water circular flow meter (26), alkali cleaning regulating valve (14) and alkali cleaning flow
Meter (28) is respectively connected with PLC controller (29), and PLC controller (29) is also connect with H2S detector (13).
3. a kind of molten sulphur washing tail gas device according to claim 1 or 2, it is characterized in that: the lower part of the water scrubber (1)
It is also connected with water supply pipe (3).
4. a kind of molten sulphur washing tail gas device according to claim 3, it is characterized in that: being connected on the alkali cleaning pond (2)
Lye supplement pipe (18), and the top of alkali cleaning pond (2) is also connected with return pipe (19), the other end and caustic wash tower of return pipe (19)
(9) lower part connection.
5. a kind of molten sulphur washing tail gas device according to claim 4, it is characterized in that: the washing spray device (8)
Top is equipped with exhaust gas channel (15), and exhaust gas channel (15) includes the tail gas chamber being connected to washing spray device (8) top and sets
It sets in the passway of tail gas top of chamber, passway is connected to the bottom of caustic wash tower (9).
6. a kind of molten sulphur washing tail gas device according to claim 5, it is characterized in that: on the inlet exhaust gas pipeline (5)
Equipped with tail gas valve (27).
7. a kind of molten sulphur washing tail gas device according to claim 1, it is characterized in that: described
Washing spray device (8) includes the water main (22) connecting with washing export pipeline (7), and water main is laid on (22)
Multiple points of water sprayer tubes (23) divide on water sprayer tube (23) and are laid with multiple spray heads.
8. a kind of molten sulphur washing tail gas device according to claim 1, it is characterized in that: the alkali cleaning spray equipment (10) wraps
The main alkali liquor pipe (24) connecting with alkali cleaning export pipeline (16) is included, is laid with multiple points of lye spray tubes on main alkali liquor pipe (24)
(25), divide on lye spray tube (25) and be laid with multiple spray heads.
9. a kind of molten sulphur washing tail gas device according to claim 1, it is characterized in that: described catch mist layer (21) are stainless steel
Silk filler for flower ring or high polymer printing ring filler.
10. a kind of molten sulphur washing tail gas device according to claim 1, it is characterized in that: the import of the water-circulating pump (4)
Imported valve is recycled equipped with water, the outlet of water-circulating pump (4) is equipped with water loop exit valve, and the import that alkali cleaning pumps (17) is equipped with alkali
Imported valve is washed, the outlet that alkali cleaning pumps (17) is equipped with alkali cleaning outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761372.6U CN209362201U (en) | 2018-10-29 | 2018-10-29 | A kind of molten sulphur washing tail gas device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761372.6U CN209362201U (en) | 2018-10-29 | 2018-10-29 | A kind of molten sulphur washing tail gas device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209362201U true CN209362201U (en) | 2019-09-10 |
Family
ID=67839241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821761372.6U Expired - Fee Related CN209362201U (en) | 2018-10-29 | 2018-10-29 | A kind of molten sulphur washing tail gas device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209362201U (en) |
-
2018
- 2018-10-29 CN CN201821761372.6U patent/CN209362201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20201029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |