CN205024186U - Coke oven tail gas wet flue gas desulfurization device - Google Patents
Coke oven tail gas wet flue gas desulfurization device Download PDFInfo
- Publication number
- CN205024186U CN205024186U CN201520642947.2U CN201520642947U CN205024186U CN 205024186 U CN205024186 U CN 205024186U CN 201520642947 U CN201520642947 U CN 201520642947U CN 205024186 U CN205024186 U CN 205024186U
- Authority
- CN
- China
- Prior art keywords
- coke oven
- oxidation
- layer
- flue gas
- pipe network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a coke oven tail gas wet flue gas desulfurization device: the boiler flue gas communicates to the scrubbing tower through gas gas heater, the export of scrubbing tower communicates to the desulfurization absorption tower, and scrubbing tower inner chamber upper portion is equipped with the washing and sprays the layer, the desulfurization absorption tower is inside to be located flue gas entry top and to be equipped with in proper order and to absorb section, defogging section and exhanst gas outlet, and be located flue gas entry below and be equipped with the oxidation panel, the absorption section is provided with the three -layer absorption and sprays layer, each spray the layer by spray the pipe network and the shower head is formed, in the thick liquid pond of desulfurization absorption tower bottom was located to the oxidation panel, the oxidation pipe network of oxidation panel supplied to send oxygen by the oxidation fan, the exhanst gas outlet communicates to the main smoke stack emission of coke oven device through gas gas heater. Can realize the cooling washing of flue gas and SO2's desorption through the device, just can effectively solve the wet flue gas desulfurization device and be equipped with the problem to the heat of coke oven chimney.
Description
Technical field:
The utility model relates to a kind of coke oven tail gas wet desulphurization device.
Background technology:
China is Iron and Steel Production big country and Coal Chemical Industry big producing country, and the existing coke oven of China more than 2000, due to SO in coke oven tail gas
2concentration is not high, generally at 500mg/Nm
3below, according to " coking chemistry emission of industrial pollutants standard " GB16171-2012 that country issues for 2012, environmental requirement cannot be met.
Existing wet desulfurizing process mainly contains Wingdale-gypsum, Dual alkali, magnesium oxide method and ammonia process, the built wet desulphurization device of part adopts Wingdale-gypsum mostly, Dual alkali and magnesium oxide method, all there is the secondary pollution problem of desulfurizing byproduct and the easy fouling of system device and blockage problem in above several technique.And all do not consider the hot standby problem of coke oven chimney.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of coke oven tail gas wet desulphurization device, can be realized cooling washing and the SO of flue gas by this device
2remove, and the hot standby problem of wet desulphurization device to coke oven chimney can be efficiently solved.
The utility model technical solution problem adopts following technical scheme:
A kind of coke oven tail gas wet desulphurization device:
Boiler smoke is communicated to washing tower through flue gas heat-exchange unit, and the outlet of described washing tower to desulfuration absorbing tower, and is provided with wash spray layer on described washing tower inner chamber top;
Described desulfuration absorbing tower inside is positioned at above smoke inlet and is provided with absorber portion, demist section and exhanst gas outlet successively, be positioned at below smoke inlet and be provided with oxidation panel, described absorber portion is provided with three layers and absorbs spraying layer, and each described spraying layer is made up of spray pipe network and spray header; Described oxidation panel is located in the slurry pool bottom desulfuration absorbing tower, and the oxidation pipe network of oxidation panel is by oxidation fan feed oxygen;
Described exhanst gas outlet is communicated to the main smoke stack emission of coke oven device through flue gas heat-exchange unit.
Described wash spray layer is made up of spray pipe network and nozzle, and the intracavity bottom of described washing tower is provided with stock tank, and described spray pipe network is communicated with described stock tank by circulating line, and is provided with cleaning circulation pump on circulating line.
Three layers of described absorber portion absorb in spraying layer, and each layer spraying layer is made up of spray pipe network and spray header, and the spray pipe network of every layer each via in the slurry pool bottom pipeline communication to desulfuration absorbing tower, and is provided with absorbent recirculation pump and PH meter in respective pipeline.
Be provided with mist eliminator in described demist section, described mist eliminator is traverse baffle mist eliminator or mesh mist eliminator, and is provided with mist eliminator flushing system, and described rinse-system is communicated with technique water tank through pipeline, and is provided with technique water pump in the duct.
Described oxidation pipe network forms with arm by being responsible for, and supervisor communicates with oxidation fan, and each arm has oxidation air distribution hole in bottom, and aperture is 6-10mm.
The inlet duct of each described absorbent recirculation pump is all communicated with ammoniacal liquor transport pipe, and is provided with electric control valve on each ammoniacal liquor transport pipe, described electric control valve and described PH meter are connected in electrical control system.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, device arranges GGH and designs and develops for coke oven tail gas and the feature of running discharge specially flue gas heat exchange and requirement.Its core is flue gas heat-exchange unit (GGH), unaffordable for wet desulphurization high-temperature flue gas (about 170-180 DEG C) is cooled to less than 120 DEG C, utilizes the heat of self flue gas that the flue-gas temperature after desulfurization is risen to more than 110 DEG C simultaneously.Both meet the emission request of environmental protection, meet again the hot standby state of coke oven chimney.
2, prewashing column feature be by further for the flue gas of about 120 DEG C spraying cooling to less than 70 DEG C, the dust in flue gas and acidic substance are washed simultaneously, be conducive to rear one-step desulfurization absorb.
Prewashing column principal character is washing tower and the slurries spraying layer composition of a steel, and tower bottom is spray stock tank, and there is pre-wash cycle pump outside, and spraying layer is arranged at tower top.
3, the principal character of desulphurization absorption tower system is bottom is absorb slurry pool (oxidation pond of holding concurrently), and top is three layers and absorbs spraying layer, and topmost is mist eliminator layer.
Absorption cycle plasm PH value Controlling System principal character is: absorption agent adopts multiple spot to add, adding place is serum recycle pump intake, the add-on controlling absorption agent controls the pH value difference of every layer of absorption cycle liquid, to reach the utilization ratio and desulfuration efficiency that improve absorption agent.
In sum, this device is by GGH heat exchange and prewashing column system, effectively solve the hot standby problem of coke oven tail gas wet desulphurization chimney and decrease dust in flue gas and acidic substance to the corrosion location of steel construction, and effectively being controlled the escape of ammonia by the mode of multiple spot ammonification.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of this device
Number in the figure: 1 flue gas heat-exchange unit, 2 washing towers, 3 desulfuration absorbing towers, 4 technique water tanks, 5 cleaning circulation pump, 6 absorbent recirculation pumps, 7 technique water pumps, 8 wash spray layers, 9 absorb spraying layer, and 10-PH counts, 11 oxidation pipe networks, 12 oxidation fans, 13 mist eliminators, 14 ammoniacal liquor transport pipes.
Below by way of embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: see Fig. 1, the structure of the utility model device is: boiler smoke is communicated to washing tower 2 through flue gas heat-exchange unit 1, and the outlet of washing tower to desulfuration absorbing tower 3, and is provided with wash spray layer 8 on washing tower 2 inner chamber top.
Be positioned in desulfuration absorbing tower 3 inside above smoke inlet and be provided with absorber portion, demist section and exhanst gas outlet successively, be positioned at below smoke inlet and be provided with oxidation panel, absorber portion is provided with three layers and absorbs spraying layer 9, and each spraying layer is made up of spray pipe network and spray header; Oxidation panel is located in the slurry pool bottom desulfuration absorbing tower, the oxidation pipe network 11 of oxidation panel is by oxidation fan 12 feed oxygen, and oxidation pipe network 11 is made up of supervisor and arm, and supervisor communicates with oxidation fan 12, each arm has oxidation air distribution hole in bottom, and aperture is 6-10mm.Material is FRP (fibre reinforced composites/glass reinforced plastic) or 316L (stainless steel model).
Exhanst gas outlet is communicated to the main smoke stack emission of coke oven device through flue gas heat-exchange unit (GGH).
Wash spray layer 8 is made up of spray pipe network and nozzle, and be provided with stock tank at the intracavity bottom of washing tower, spray pipe network is communicated with stock tank by circulating line, and on circulating line, be provided with cleaning circulation pump 5, to realize recycle.
Three layers at absorber portion absorb in spraying layer 9, and each layer spraying layer is made up of spray pipe network and spray header, and the spray pipe network of every layer each via in the slurry pool bottom pipeline communication to desulfuration absorbing tower, and is provided with absorbent recirculation pump 6 and PH meter 10 in respective pipeline.The inlet duct of each absorbent recirculation pump 6 is all communicated with ammoniacal liquor transport pipe 14, and is provided with electric control valve on each ammoniacal liquor transport pipe, each electric control valve and PH meter 10 are connected in electrical control system.The add-on of absorption agent ammoniacal liquor is counted by the PH on absorbent recirculation pump 6 outlet conduit the signal fed back and is carried out regulable control.
Be provided with mist eliminator 13 in demist section, this mist eliminator is traverse baffle mist eliminator or mesh mist eliminator, and is provided with mist eliminator flushing system, and rinse-system is communicated with technique water tank 4 through pipeline, and is provided with technique water pump 7 in the duct.
As Fig. 1, the high-temperature flue gas (170 DEG C) (120 DEG C) after GGH heat exchange cooling come from waste heat boiler enters washing tower 2, deliver to that the slurries that wash spray layer 8 sprays fully contact, lower the temperature with cleaning circulation pump 5 by pipeline, dedusting and entering after being cooled to 70 DEG C after removing acidic substance in the middle part of desulfuration absorbing tower 3, fully contact with absorption spraying layer 9 absorption liquid, absorb SO
2and to heat up (110 DEG C) main smoke stack emission by coke-oven plant by entering GGH heat exchange after mist eliminator 13 demist of top of tower after the saturated wet flue gas continuing to cool to about 55 DEG C.The solution in desulfuration absorbing tower 3 bottom slurry pond is sent to three layers of absorption spraying layer 9 respectively by absorbent recirculation pump 6 and is atomized.The oxidation pipe network 11 that air after oxidation fan 12 compresses is sent to bottom desulfuration absorbing tower 3 in stock tank by pipeline is evenly distributed in the cross section of stock tank, makes the inferior sulfate radical in solution be oxidized to sulfate radical.Process water required for system supplements and to be stored by the technique water tank 4 arranged and to be transported to each water spot by technique water pump 7, to maintain the water balance of system.The add-on of absorption agent ammoniacal liquor is counted 10 signals fed back by the PH on absorbent recirculation pump 6 outlet conduit and is carried out regulable control.
Claims (6)
1. a coke oven tail gas wet desulphurization device, is characterized in that:
Boiler smoke is communicated to washing tower (2) through flue gas heat-exchange unit (1), the outlet of described washing tower to desulfuration absorbing tower (3), and is provided with wash spray layer (8) on described washing tower (2) inner chamber top;
Described desulfuration absorbing tower (3) inside is positioned at above smoke inlet and is provided with absorber portion, demist section and exhanst gas outlet successively, be positioned at below smoke inlet and be provided with oxidation panel, described absorber portion is provided with three layers and absorbs spraying layer (9), and each described spraying layer is made up of spray pipe network and spray header; Described oxidation panel is located in the slurry pool bottom desulfuration absorbing tower, and the oxidation pipe network (11) of oxidation panel is by oxidation fan (12) feed oxygen;
Described exhanst gas outlet is communicated to the main smoke stack emission of coke oven device through flue gas heat-exchange unit.
2. a kind of coke oven tail gas wet desulphurization device according to claim 1, it is characterized in that, described wash spray layer (8) is made up of spray pipe network and nozzle, the intracavity bottom of described washing tower is provided with stock tank, described spray pipe network is communicated with described stock tank by circulating line, and on circulating line, be provided with cleaning circulation pump (5).
3. a kind of coke oven tail gas wet desulphurization device according to claim 1, it is characterized in that, three layers of described absorber portion absorb in spraying layer (9), each layer spraying layer is made up of spray pipe network and spray header, the spray pipe network of every layer each via in the slurry pool bottom pipeline communication to desulfuration absorbing tower, and is provided with absorbent recirculation pump (6) and PH meter (10) in respective pipeline.
4. a kind of coke oven tail gas wet desulphurization device according to claim 1, it is characterized in that, mist eliminator (13) is provided with in described demist section, described mist eliminator is traverse baffle mist eliminator or mesh mist eliminator, and be provided with mist eliminator flushing system, described rinse-system is communicated with technique water tank (4) through pipeline, and is provided with technique water pump (7) in the duct.
5. a kind of coke oven tail gas wet desulphurization device according to claim 1, it is characterized in that, described oxidation pipe network (11) is made up of supervisor and arm, and supervisor communicates with oxidation fan (12), each arm has oxidation air distribution hole in bottom, and aperture is 6-10mm.
6. a kind of coke oven tail gas wet desulphurization device according to claim 3, it is characterized in that, the inlet duct of each described absorbent recirculation pump (6) is all communicated with ammoniacal liquor transport pipe (14), and electric control valve is provided with on each ammoniacal liquor transport pipe, described electric control valve and described PH count (10) and are connected in electrical control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642947.2U CN205024186U (en) | 2015-08-21 | 2015-08-21 | Coke oven tail gas wet flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642947.2U CN205024186U (en) | 2015-08-21 | 2015-08-21 | Coke oven tail gas wet flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205024186U true CN205024186U (en) | 2016-02-10 |
Family
ID=55256736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520642947.2U Active CN205024186U (en) | 2015-08-21 | 2015-08-21 | Coke oven tail gas wet flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205024186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180366A (en) * | 2019-07-08 | 2019-08-30 | 通用技术集团工程设计有限公司 | A kind of smoke processing system |
-
2015
- 2015-08-21 CN CN201520642947.2U patent/CN205024186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180366A (en) * | 2019-07-08 | 2019-08-30 | 通用技术集团工程设计有限公司 | A kind of smoke processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205055807U (en) | Coke oven low -sulfur tail gas desulfurization dust collector | |
| CN105879596A (en) | Absorption type system and absorption type method for dehumidifying desulfurized flue gas, and coal-fired enterprise | |
| CN201249100Y (en) | Rotary spray thionizer | |
| CN202893175U (en) | Flue gas desulfurization and denitrification integrated device of sintering machine | |
| CN101428196A (en) | In-hollow column intercrystalline ammonia process of desulfurization, recovery system and method thereof | |
| CN205024186U (en) | Coke oven tail gas wet flue gas desulfurization device | |
| CN201249101Y (en) | Two-stage parallel spray thionizer | |
| CN107158918A (en) | A kind of nitrate method phosphoric acid tail gas defluorinate denitration process system and processing method | |
| CN208799958U (en) | A kind of horizontal calcium method desulfurizing tower | |
| CN202715350U (en) | Wet desulfurization adsorption tower with multi-effect turbulence system | |
| CN102527223A (en) | Sintering machine flue gas desulfurization process and device thereof | |
| CN206935095U (en) | A kind of nitrate method phosphoric acid tail gas defluorinate denitration process system | |
| CN105536534A (en) | Flue-gas desulfurization-and-denitration dust-deeply-collecting system | |
| CN108126495A (en) | Hydrogen sulfide absorption tower | |
| CN212431850U (en) | High-efficient gas heater of intermediate heat medium for flue gas integrated treatment | |
| CN204973533U (en) | Cold rolled stainless steel pickling exhaust purification system | |
| CN105299674B (en) | A kind of Multifunctional smoke energy-saving and emission-reduction system | |
| CN201140025Y (en) | Flue gas purification and recovery system | |
| CN207755980U (en) | Hydrogen sulfide absorption tower | |
| CN103406017A (en) | Desulfurizing absorption tower and desulfurizing absorption method | |
| CN209663018U (en) | A kind of sintering machine of steel mill flue gas desulfurization device | |
| CN205948642U (en) | Seawater desulfurization dust pelletizing system | |
| CN112221315A (en) | Wet desulphurization absorption tower | |
| CN105536477A (en) | Efficient low-cost flue gas desulfurization and denitrification deep dust removal system | |
| CN210186853U (en) | Desulfurization spray tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 238100 Anhui city of Ma'anshan province Hanshan County Qingxi Industrial Park Patentee after: Tongxing environmental Polytron Technologies Inc Address before: 238100 Anhui city of Ma''anshan province Hanshan County Qingxi Industrial Park Patentee before: Anhui Tongxing Environmental Protection Engineering Co.,Ltd. |