CN108607334A - A kind of wet-method desulfurized fume efficiently takes off white device and its implementation - Google Patents
A kind of wet-method desulfurized fume efficiently takes off white device and its implementation Download PDFInfo
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- CN108607334A CN108607334A CN201810655104.4A CN201810655104A CN108607334A CN 108607334 A CN108607334 A CN 108607334A CN 201810655104 A CN201810655104 A CN 201810655104A CN 108607334 A CN108607334 A CN 108607334A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000003517 fume Substances 0.000 title claims abstract description 20
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 114
- 238000001816 cooling Methods 0.000 claims abstract description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 24
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 210000000481 breast Anatomy 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of wet-method desulfurized fumes efficiently to take off white device and its implementation, belongs to chemical industry and environmental technology field.Including booster fan, de- White Tower and cooling tower, the booster fan entrance is connect with flue gas guide pipe, the booster fan outlet is connect with the smoke inlet of de- White Tower, spraying layer and surface cooler are equipped in described de- White Tower, de- White Tower top is equipped with chimney, de- White Tower bottom connects solution tank, the spraying layer connects solution tank, it flow to regenerator entrance after the solution tank connection solution pump B, solution tank is connected after the regenerator outlet connection heat exchanger, the heat exchanger water outlet connects cooling tower entrance, the heat exchanger water inlet connection cooling tower outlet, the cooling tower entrance is connected with surface cooler outlet, the cooling tower outlet is connect with surface cooler entrance.A kind of wet-method desulfurized fume efficiently takes off white device and its implementation, after LiBr solution efficiently dehumidifying so that when flue gas to chimney breast, no white cigarette phenomenon.
Description
Technical field
The present invention relates to a kind of wet-method desulfurized fumes efficiently to take off white device and its implementation.Belong to chemical industry and environmentally friendly skill
Art field.
Background technology
Current flue gas desulfurization technique mainly has 3 class of wet method, dry method and semidry method, wherein wet desulfurizing process flow letter
Single, desulfuration efficiency is high, investment is moderate, simple in structure, and gas cleaning degree is high, becomes most widely used flue gas desulfurization technique.
Flue gas after wet desulphurization can realize qualified discharge, but discharge flue gas and contain saturated steam, and chimney will appear white cigarette.
The phenomenon that China is not required chimney emission temperature, therefore " white cigarette " occurs in China's wet flue gas is very universal.In plant area of enterprise
Sky forms the scene that smog curls up, and serious negative effect, the resident on plant area periphery and municipal government of municipal Party committee are brought to corporate image
Related functional department have strong complaints, powerful pressure is applied with to enterprise.White cigarette visual effect is poor, seriously affects the public
To the degree of recognition of enterprise.For many years, many environmental protection companies have been devoted to thoroughly administer and solve this phenomenon, but do not have so far
Ripe technology and successful engineering project precedent provides a reference.Therefore, chimney " white cigarette " phenomenon is not administered effectively.
Invention content
It is efficient the technical problem to be solved by the present invention is to provide a kind of wet-method desulfurized fume for the above-mentioned prior art
White device and its implementation are taken off, since the flue gas after wet desulphurization is saturation wet flue gas, water capacity 100% passes through LiBr
For solution efficiently after dehumidifying, water capacity is only 20% so that when flue gas to chimney breast, no white cigarette phenomenon.
Technical solution is used by the present invention solves the above problems：A kind of wet-method desulfurized fume efficiently takes off white device,
Include mainly that booster fan, de- White Tower, cooling tower, regenerator and the solution tank for being placed with LiBr solution, the booster fan enter
Mouth is connect with flue gas guide pipe, and the outlet of the booster fan is connect with the smoke inlet on de- White Tower, in described de- White Tower certainly
Spraying layer and surface cooler above are had, de- White Tower top is equipped with chimney, and de- White Tower bottom connects solution tank, described
Spraying layer connects solution tank, and solution pump A is equipped between the spraying layer and solution tank so that LiBr solution flows into spraying layer, institute
It is flow to regenerator entrance after stating solution tank connection solution pump B, reconnects solution tank after the regenerator outlet connection heat exchanger, institute
State the entrance of heat exchanger water outlet connection cooling tower, the outlet of the water inlet connection cooling tower of the heat exchanger, the cooling tower
Entrance also connect with the outlet of surface cooler, the outlet of the cooling tower is also connect with the entrance of surface cooler.
Nozzle in the spraying layer is high density nozzle, is evenly arranged on de- White Tower cross section.
The heat exchanger is set as the finned pipe heat exchanger of stainless steel, and the cooling source in heat exchanger is in cooling tower
Recirculated water.
Electric heater is equipped in the regenerator, for heating LiBr solution.
A kind of wet-method desulfurized fume efficiently takes off the implementation method of white device, specifically includes following steps：
Step 1: the LiBr solution after proportioning is placed in solution tank；
Step 2: the flue gas after wet desulphurization is saturation wet flue gas, temperature is 55 DEG C, enters supercharging by flue gas guide pipe
Wind turbine；
Step 3: opening booster fan, so that flue gas is entered and take off in White Tower；
Step 4: making LiBr solution enter spraying layer by solution pump A, entirely de- White Tower is sprayed, surface cooler pair is passed through
LiBr solution cools down so that for LiBr solution to being saturated wet flue gas dehumidifying and cooling, the flue gas after dehumidifying passes through the top cigarette for taking off White Tower
Chimney discharges, and LiBr solution is flowed into from de- White Tower bottom in solution tank after heat exchange；
Step 5: being recycled after being cooled down by the recirculated water in cooling tower inside surface cooler；
Step 6: since LiBr solution absorbs the water vapour of flue gas, concentration declines, will be in solution tank by solution pump B
LiBr solution flow into regenerator, so that LiBr solution is heated up by the electric heater of internal regenerator, release LiBr solution
Vapor；
Step 7: the LiBr solution of regenerator bottoms high-temperature enters heat exchanger, it is used as by the recirculated water in cooling tower
Cooling source exchanges heat with high-temperature LiBr solution, is flowed into solution tank again after the temperature reduction of LiBr solution；
Step 8: taking off white, the above operation of cycle after making LiBr solution enter spraying layer by solution pump A again.
Preferentially, the concentration that the LiBr solution ratios are 20%.
Preferentially, the inflow temperature of the surface cooler and heat exchanger is 25 DEG C, and leaving water temperature is 35 DEG C, passes through cooling
Tower by 35 DEG C be water-cooled to 25 DEG C after recycle.
Preferentially, the electric heater of the internal regenerator makes LiBr solution be warming up to 80 DEG C, discharges in LiBr solution
Vapor.
Compared with the prior art, the advantages of the present invention are as follows：A kind of wet-method desulfurized fume efficiently takes off white device and in fact
Existing method, does not influence flue gas desulfurization technique early period not only, chimney breast is emerged without any white cigarette, subsequently without waste water,waste gas and industrial residue
Deng generation, secondary pollution is not generated, and carry out at low ambient temperatures, low to device parameter requirement, equipment is easy to maintain；LiBr
Solution recycles, and without discharge, non-secondary pollution, economical and energy saving is stable, can substantially improve corporate image.
Description of the drawings
Fig. 1 is the schematic diagram that a kind of wet-method desulfurized fume of the embodiment of the present invention efficiently takes off white device；
1 flue gas guide pipe, 2 booster fans, 3 de- White Tower, 4 surface coolers, 5 spraying layers, 6 chimneys, 7 cooling towers, 8 electricity add in figure
Hot device, 9 regenerators, 10 heat exchangers, 11 solution pump A, 12 solution pump B, 13LiBr solution, 14 solution tanks.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figure 1, a kind of wet-method desulfurized fume in the present embodiment efficiently takes off white device, include mainly booster fan
2, White Tower 3, cooling tower 7, regenerator 9 and the solution tank 14 for being placed with LiBr solution 13, the entrance and flue gas of the booster fan 2 are taken off
Guide pipe 1 connects, and the outlet of the booster fan 2 connect with the smoke inlet on de- White Tower 3, described de- White Tower 3 it is interior from upper and
Spraying layer 5 and surface cooler 4 are had, 3 top of de- White Tower is equipped with chimney 6, and 3 bottom of de- White Tower connects solution tank 14,
The spraying layer 5 connects solution tank 14, solution pump A11 is equipped between the spraying layer 5 and solution tank 14 so that LiBr solution 13
Spraying layer 5 is flowed into, the solution tank 14 flow to 9 entrance of regenerator after connecting solution pump B12, and the outlet of the regenerator 9 connection is changed
Solution tank 14 is reconnected after hot device 10,10 water outlet of the heat exchanger connects the entrance of cooling tower 7, and the heat exchanger 10 enters water
The outlet of mouth connection cooling tower 7, the entrance of the cooling tower 7 are also connect with the outlet of surface cooler 4, the outlet of the cooling tower 7
Also it is connect with the entrance of surface cooler 4.
Nozzle in spraying layer 5 is high density nozzle, is evenly arranged on 3 cross section of de- White Tower.
Heat exchanger 10 is set as the finned pipe heat exchanger of stainless steel, and the cooling source in heat exchanger 10 is cooling tower 7
In recirculated water.
Electric heater 10 is equipped in regenerator 9, for heating LiBr solution 13.
A kind of above-mentioned wet-method desulfurized fume efficiently takes off the implementation method of white device, specifically includes following steps：
Step 1: the LiBr solution 13 of 20% concentration is placed in solution tank 14；
Step 2: the flue gas after wet desulphurization is saturation wet flue gas, temperature is 55 DEG C, is entered by flue gas guide pipe 1 and is increased
Pressure fan 2；
Step 3: opening booster fan 2, so that flue gas is entered and take off in White Tower 3；
Step 4: making LiBr solution 13 enter spraying layer 5 by solution pump A11, entirely de- White Tower 3 is sprayed, table is passed through
Cooler 4 cools down to LiBr solution 13 so that LiBr solution 13 is to being saturated wet flue gas dehumidifying and cooling, and the humidity of flue gas after dehumidifying is only
It is 20%, the top chimney 6 by taking off White Tower 3 discharges, and LiBr solution 13 flows into solution tank 14 from 3 bottom of de- White Tower after heat exchange
In；
Step 5: being cooled down by the recirculated water in cooling tower 7 inside surface cooler 4, the inflow temperature of surface cooler 4 is
25 DEG C, leaving water temperature be 35 DEG C, by cooling tower by 35 DEG C be water-cooled to 25 DEG C after recycle；
Step 6: since LiBr solution 13 absorbs the water vapour of flue gas, concentration declines, by solution pump B12 by solution
LiBr solution 13 in slot 14 flows into regenerator 9, so that LiBr solution 13 is warming up to by the electric heater 8 inside regenerator 9
80 DEG C, the vapor of release LiBr solution 13；
Step 7: the LiBr solution 13 of 9 bottom high-temperature of regenerator enters heat exchanger 10, pass through the cycle in cooling tower 7
Water exchanges heat as cooling source and high-temperature LiBr solution 13, and solution tank 14 is flowed into again after the temperature reduction of LiBr solution 13
In；
Step 8: taking off white, the above operation of cycle after making LiBr solution 13 enter spraying layer 5 by solution pump A11.
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiment
The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.
Claims (8)
1. a kind of wet-method desulfurized fume efficiently takes off white device, it is characterised in that：Include mainly booster fan (2), de- White Tower
(3), cooling tower (7), regenerator (9) and the solution tank (14) for being placed with LiBr solution (13), the entrance of the booster fan (2) with
Flue gas guide pipe (1) connects, and the outlet of the booster fan (2) is connect with the smoke inlet on de- White Tower (3), described de- White Tower
(3) spraying layer (5) and surface cooler (4) are equipped in from top to bottom, de- White Tower (3) top is equipped with chimney (6), described de- White Tower
(3) bottom connection solution tank (14), the spraying layer (5) connection solution tank (14), the spraying layer (5) and solution tank (14) it
Between be equipped with solution pump A (11) so that LiBr solution (13) flows into spraying layer (5), the solution tank (14) connection solution pump B (12)
After flow to regenerator (9) entrance, regenerator (9) the outlet connection heat exchanger (10) reconnects solution tank (14) afterwards, described to change
The entrance of hot device (10) water outlet connection cooling tower (7), the outlet of the water inlet connection cooling tower (7) of the heat exchanger (10),
The entrance of the cooling tower (7) is connect with the outlet of surface cooler (4), the entrance of the outlet and surface cooler (4) of the cooling tower (7)
Connection.
2. a kind of wet-method desulfurized fume according to claim 1 efficiently takes off white device, it is characterised in that：The spraying layer
(5) nozzle in is evenly arranged on de- White Tower (3) cross section.
3. a kind of wet-method desulfurized fume according to claim 1 efficiently takes off white device, it is characterised in that：The heat exchanger
(10) it is the finned pipe heat exchanger of stainless steel, the cooling source in heat exchanger (10) is the recirculated water in cooling tower (7).
4. a kind of wet-method desulfurized fume according to claim 1 efficiently takes off white device, it is characterised in that：The regenerator
(9) electric heater (8) is equipped in, for heating LiBr solution (13).
5. a kind of wet-method desulfurized fume efficiently takes off the implementation method of white device as described in claim 1, it is characterised in that：Specifically
Include the following steps：
Step 1: the LiBr solution (13) after proportioning is placed in solution tank (14)；
Step 2: the flue gas after wet desulphurization enters booster fan (2) by flue gas guide pipe (1)；
Step 3: opening booster fan (2), so that flue gas is entered and take off in White Tower (3)；
Step 4: by solution pump A (11) so that LiBr solution (13) enters spraying layer (5), spray entirely takes off White Tower (3), leads to
It crosses surface cooler (4) to cool down to LiBr solution (13) so that LiBr solution (13) is to being saturated wet flue gas dehumidifying and cooling, the cigarette after dehumidifying
Gas is discharged by taking off the top chimney (6) of White Tower (3), and LiBr solution (13) flows into solution from de- White Tower (3) bottom after heat exchange
In slot (14)；
Step 5: being recycled after being cooled down by the recirculated water in cooling tower (7) inside surface cooler (4)；
Step 6: LiBr solution (13) absorbs the water vapour of flue gas, concentration declines, by solution pump B (13) by solution tank
(14) the LiBr solution (13) in flows into regenerator (9), makes LiBr solution by the internal electric heater (8) of regenerator (9)
(13) it heats up, the vapor in release LiBr solution (13)；
Step 7: the LiBr solution (13) of regenerator (9) bottom high-temperature enters heat exchanger (10), by cooling tower (3)
Recirculated water exchanges heat as cooling source and high-temperature LiBr solution (13), is flowed into again after the temperature reduction of LiBr solution (13) molten
In liquid bath (14)；
Step 8: by solution pump A (11) so that LiBr solution (13) enters spraying layer (5) and takes off white, the above operation of cycle afterwards.
6. a kind of wet-method desulfurized fume according to claim 5 efficiently takes off the implementation method of white device, it is characterised in that：
The concentration that LiBr solution (13) proportioning is 20%.
7. a kind of wet-method desulfurized fume according to claim 5 efficiently takes off the implementation method of white device, it is characterised in that：
The inflow temperature of the surface cooler (4) and heat exchanger (10) is 25 DEG C, and leaving water temperature is 35 DEG C, will by cooling tower (7)
35 DEG C be water-cooled to 25 DEG C after recycle.
8. a kind of wet-method desulfurized fume according to claim 5 efficiently takes off the implementation method of white device, it is characterised in that：
The internal electric heater (8) of the regenerator (9) makes LiBr solution (13) be warming up to 80 DEG C, the water in release LiBr solution (13)
Steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655104.4A CN108607334A (en) | 2018-06-23 | 2018-06-23 | A kind of wet-method desulfurized fume efficiently takes off white device and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655104.4A CN108607334A (en) | 2018-06-23 | 2018-06-23 | A kind of wet-method desulfurized fume efficiently takes off white device and its implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108607334A true CN108607334A (en) | 2018-10-02 |
Family
ID=63665504
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|---|---|---|---|
| CN201810655104.4A Pending CN108607334A (en) | 2018-06-23 | 2018-06-23 | A kind of wet-method desulfurized fume efficiently takes off white device and its implementation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529559A (en) * | 2018-12-04 | 2019-03-29 | 昊姆（上海）节能科技有限公司 | Flue gas takes off white plumage system and its takes off white plumage method |
| CN109939459A (en) * | 2019-03-21 | 2019-06-28 | 东南大学 | A kind of the low-temperature dust-containing flue gas eliminating white smoke device and working method of condensed in two stages and solution dehumidification |
| CN110026405A (en) * | 2019-04-04 | 2019-07-19 | 北京卫星制造厂有限公司 | A kind of waste gas and waste liquid reclaimer based on recoverable airship solar heat protection formed product |
| CN110201498A (en) * | 2019-04-25 | 2019-09-06 | 上海海事大学 | A kind of desulfurization fume dehumidification system |
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| CN208711381U (en) * | 2018-06-23 | 2019-04-09 | 江苏垦乐节能环保科技有限公司 | A kind of wet-method desulfurized fume efficiently takes off white device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529559A (en) * | 2018-12-04 | 2019-03-29 | 昊姆（上海）节能科技有限公司 | Flue gas takes off white plumage system and its takes off white plumage method |
| CN109939459A (en) * | 2019-03-21 | 2019-06-28 | 东南大学 | A kind of the low-temperature dust-containing flue gas eliminating white smoke device and working method of condensed in two stages and solution dehumidification |
| CN110026405A (en) * | 2019-04-04 | 2019-07-19 | 北京卫星制造厂有限公司 | A kind of waste gas and waste liquid reclaimer based on recoverable airship solar heat protection formed product |
| CN110201498A (en) * | 2019-04-25 | 2019-09-06 | 上海海事大学 | A kind of desulfurization fume dehumidification system |
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Application publication date: 20181002 |
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| RJ01 | Rejection of invention patent application after publication |