CN201524522U - Flue gas desulfurization device - Google Patents
Flue gas desulfurization device Download PDFInfo
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- CN201524522U CN201524522U CN2009202265285U CN200920226528U CN201524522U CN 201524522 U CN201524522 U CN 201524522U CN 2009202265285 U CN2009202265285 U CN 2009202265285U CN 200920226528 U CN200920226528 U CN 200920226528U CN 201524522 U CN201524522 U CN 201524522U
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- slurries
- gypsum
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- district
- absorption tower
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Abstract
The utility model provides a flue gas desulfurization device. The device comprises an absorption tower (1), a pulping device (2), a gypsum treatment device (3), a process water system (5) and an oxidation blower (7), wherein, a smoke exhaust port is formed at the top of the absorption tower (1); the absorption tower (1) is connected with a chimney; a slurry area is arranged in the absorption tower (1); a smoke inlet is formed on the upper liquid level of the slurry area; the smoke inlet of the absorption tower (1) is connected with a flue gas inlet passage; the oxidation blower (7) is connected with the slurry area of the absorption tower (1) through a pipeline; the absorption tower (1) is connected with the pulping device (2), the gypsum treatment device (3) and the process water system (5); and the gypsum treatment device (3) is connected with the pulping device (2) through a pipeline. Therefore, the utility model consumes carbide slag and has better desulfuration effect.
Description
One, technical field
The utility model relates to a kind of device of flue gas desulfurization, especially a kind of device of flue gas desulfurization of the sulphur coal that is adapted to burn.
Two, background technology
The flue gas that produces behind the coal combustion all needs to discharge in the heavenwards, contains dust and SO in the flue gas
2Deng oxious component, particularly when the burning sulphur coal, contain a large amount of SO in the flue gas
2, and be emitted on airborne SO
2Form acid rain easily, thereby crops and building are produced infringement; Therefore flue gas being carried out the desulfurization processing is a critical step; Flue gas is carried out the method that desulfurization handles is lime stone existing--the gypsum wet doctor treatment, making needs lime stone is pulverized, also will be provided with Waste Water Treatment and will be provided with cooling, absorption, zoneofoxidation in the absorption tower in this way, make the internal structure complexity on absorption tower, thereby flow velocity and nozzle performance in the tower have been influenced, bad desulfurization effects; Lime stone is a kind of industrial chemicals simultaneously, has increased desulphurization cost
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model provides a kind of device of flue gas desulfurization, has consumed carbide slag, and desulfurized effect is better.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of device of flue gas desulfurization includes absorption tower, pulping device, gypsum treating apparatus, fresh water (FW) system and oxidation fan; The top, absorption tower is provided with exhaust opening and is set to and connects with chimney, be provided with in the absorption tower slurries district and slurries district on the liquid level mouth that advances that is provided with mouth into and absorption tower be set to and advance exhaust gases passes and connect, oxidation fan is set to connect with the slurries district on absorption tower by pipeline, the absorption tower is set to connect respectively with pulping device, gypsum treating apparatus and fresh water (FW) system, and the gypsum treating apparatus is set to connect with pulping device by pipeline.
Pulping device output carbide slag slurry is in the absorption tower, oxidation is carried out in the effect of carbide slag slurry process oxidation fan, flue gas enters into the absorption tower from advancing mouth, flue gas is in uphill process, flue gas and carbide slag slurry haptoreaction form dihydrate gypsum, dihydrate gypsum precipitates in the absorption tower, through with the flue gas of carbide slag slurry reaction by the demist processing that is connected with the fresh water (FW) system after, enter into smoke stack emission by flue, dihydrate gypsum on the absorption tower forms gypsum through the gypsum treating apparatus, the waste water that the gypsum treating apparatus produces is input in the pulping device and uses, owing to used carbide slag as desulfurizing agent, simultaneously because the absorption tower has had cooling, absorb and oxidative function and simple in structure, flow velocity increases substantially in the tower, and the spray performance is further improved; Therefore consumed carbide slag, desulfurized effect is better.
The utility model has designed, and the absorption tower includes demister, spray thrower, circulating pump, absorption tower gypsum excavationg pump and tower body; The top of tower body is provided with exhaust opening, the bottom that the bottom that the exhaust opening bottom of tower body is provided with demister and demister is provided with spray thrower and spray thrower is set to the slurries district, liquid level is provided with into mouth in the slurries district in the tower body, slurries district in tower body is provided with agitator and the pipeline that is connected with oxidation fan, slurries district in the tower body is set to connect with spray thrower by circulating pump, slurries district in the tower body is set to connect with the gypsum slurries circulator, is set between slurries district in tower body and the spray thrower by pipeline and filtrate baffle-box, carbide slag slurries liquid pool and filtrate pond connect respectively.
The utility model has designed, and pulping device 2 includes filtrate baffle-box, carbide slag slurries liquid pool, filter, Ca (OH)
2Slurries case and Ca (OH)
2Slush pump; The filtrate baffle-box is provided with by the effluxing mouthful and be set to connect with the carbide slag slurries liquid pool of the pump housing, and the carbide slag slurries liquid pool is set to connect with filter by the pump housing, and filter is set to the rotary screen formula, and filter is set to and Ca (OH)
2The slurries case connects, filtrate baffle-box, carbide slag slurries liquid pool and Ca (OH)
2Be respectively arranged with agitator in the slurries case, Ca (OH)
2The slurries case is set to by Ca (OH)
2Slurries district in slush pump and the tower body connects.
The utility model has designed, and the gypsum treating apparatus includes gypsum slurries circulator, gypsum drying device, filtrate pond, gypsum baffle-box and gypsum baffle-box pump; Bottom, slurries district in tower body is set to connect with the gypsum baffle-box by absorption tower gypsum excavationg pump, the gypsum baffle-box connects with the gypsum slurries circulator by gypsum baffle-box pump, the gypsum slurries circulator is set to connect with the gypsum drying device, the gypsum drying device is set to the vacuum belt Dewaterring, the gypsum drying device is set to connect with the filtrate pond, be respectively arranged with agitator in filtrate pond and the gypsum baffle-box, the filtrate pond is set to connect with filtrate baffle-box and carbide slag slurries liquid pool respectively by the pump housing.
The utility model has designed, and the fresh water (FW) system includes water tank, flush water pump and draining pump; Water tank is set to respectively connect with demister, connect with the gypsum drying device by draining pump by flush water pump.
The utility model has designed, and also includes accident treatment device and absorption tower district blowoff basin; The accident treatment device includes accident slurries case and accident slush pump, be provided with agitator in the accident slurries case and be set to and connect with slurries district in the tower body, accident slurries case is set to connect with absorption tower district blowoff basin by the accident slush pump, is provided with agitator in the absorption tower district blowoff basin and is set to connect with the gypsum slurries circulator.Make flue gas fully carry out desulphurization reaction.
Four, description of drawings
Accompanying drawing is the schematic representation of apparatus of flue gas desulfurization.
Five, the specific embodiment
Accompanying drawing is an embodiment of the device of a kind of flue gas desulfurization of the present utility model, specify present embodiment in conjunction with the accompanying drawings, include demister 11, spray thrower 12, circulating pump 13, absorption tower gypsum excavationg pump 14, tower body 15, filtrate baffle-box 21, carbide slag slurries liquid pool 22, filter 23, Ca (OH)
2Slurries case 24, Ca (OH)
2Slush pump 25, gypsum slurries circulator 31, gypsum drying device 32, filtrate pond 33, gypsum baffle-box 34, gypsum baffle-box pump 35, accident slurries case 41, accident slush pump 42, water tank 51, flush water pump 52, draining pump 53, absorption tower district blowoff basin 6 and oxidation fan 7;
Filtrate baffle-box 21 is provided with by the effluxing mouthful and be set to connect with carbide slag slurries liquid pool 22 of the pump housing, and carbide slag slurries liquid pool 22 is set to connect with filter 23 by the pump housing, and filter 23 is set to the rotary screen formula, and filter 23 is set to and Ca (OH)
2Slurries case 24 connects filtrate baffle-box 21, carbide slag slurries liquid pool 22 and Ca (OH)
2Be respectively arranged with agitator in the slurries case 24, Ca (OH)
2Slurries case 24 is set to by Ca (OH)
2Slurries district in slush pump 25 and the tower body 15 connects;
The top of tower body 15 is provided with exhaust opening, the bottom that the bottom that the exhaust opening bottom of tower body 15 is provided with demister 11 and demister 11 is provided with spray thrower 12 and spray thrower 12 is set to the slurries district, liquid level is provided with into mouth in the slurries district in the tower body 15, slurries district in tower body 15 is provided with agitator and the pipeline that is connected with oxidation fan 7, and the slurries district in the tower body 15 is set to connect with spray thrower 12 by circulating pump 13;
Bottom, slurries district in tower body 15 is set to connect with gypsum baffle-box 34 by absorption tower gypsum excavationg pump 14; Gypsum baffle-box 34 connects with gypsum slurries circulator 31 by gypsum baffle-box pump 35; Gypsum slurries circulator 31 is set to connect with gypsum drying device 32; Gypsum drying device 32 is set to the vacuum belt Dewaterring; Gypsum drying device 32 is set to connect with filtrate pond 33; Be respectively arranged with agitator in filtrate pond 33 and the gypsum baffle-box 34; Filtrate pond 33 is set to connect with filtrate baffle-box 21 and carbide slag slurries liquid pool 22 respectively by the pump housing
Be provided with agitator in the accident slurries case 41 and be set to and connect with slurries district in the tower body 15, accident slurries case 41 is set to connect with absorption tower district blowoff basin 6 by accident slush pump 42,
Be provided with agitator in the absorption tower district blowoff basin 6 and be set to and connect with gypsum slurries circulator 31,
Water tank 51 is set to respectively connect with demister 11, connect with gypsum drying device 32 by draining pump 53 by flush water pump 52.
Slurries districts in the tower body 15 are set to connect with gypsum slurries circulator 31, are set to connect respectively with filtrate baffle-box 21, carbide slag slurries liquid pool 22 and filtrate pond 33 by pipeline between the slurries district in tower body 15 and the spray thrower 12.
In the present embodiment, the temperature of flue gas is 125 ℃; The model of flush water pump is: flow=60m
3/ h, lift=60m; The model of circulating pump is: flow=3050m
3/ h, lift=20.1/22.4/24.5m.
Carbide slag is stirred into carbide slag slurry at carbide slag slurries liquid pool 22, through filter 23 backs the slag body being filtered out, with Ca (OH)
2The Ca of slurries case 24 (OH)
2Slurries mix, again through Ca (OH)
2Slush pump 25 is input in the slurries district in the tower body 15, carbide slag slurry acts on through oxidation fan 7 and carries out oxidation, flue gas enters in the tower body 15 from advancing mouth, start circulating pump 13 and make spray thrower 12 ejection carbide slag slurries, flue gas is in uphill process, flue gas and carbide slag slurry haptoreaction form dihydrate gypsum, dihydrate gypsum precipitates in the slurries district in tower body 15, after handling by demister 11 with the flue gas of carbide slag slurry reaction, enter into smoke stack emission by flue, dihydrate gypsum in the slurries district in tower body 15 is transported in the gypsum slurries circulator 31 through absorption tower gypsum excavationg pump 14, dihydrate gypsum in the gypsum slurries circulator 31 forms gypsum through gypsum drying device 32, and the waste water that gypsum drying device 32 produces is input to use in filtrate baffle-box 21 and the carbide slag slurries liquid pool 22 behind the fluid pool 33 after filtration again.
When using this enforcement, owing to designed accident slurries case 41, accident slush pump 42 and absorption tower district blowoff basin 6; Make when carbide slag slurry provides quantity not sufficient or pulping equipment when breaking down, guarantee the quantity delivered of carbide slag slurry, make flue gas fully carry out desulphurization reaction.
When carrying out the enforcement of present embodiment, mainly be to utilize salt chemical engineering industrial waste carbide slag as desulfurizing agent.Collected the flue gas that 1# boiler, 2# boiler and 3# boiler produce, before the method for using present embodiment is handled, SO in the boiler smoke after measured
2Content is 5000-7000mg/Nm3, after the method for using present embodiment is handled, and SO in the boiler smoke
2Content is 201mg/Nm3, and discharge capacity drops to 68.46kg/h, and desulfuration efficiency reaches 96%; Dust concentration, the SO of discharging
2Concentration, blackness of exhaustion all meet the requirement of III period standard value in thermal power plant's atmosphere pollutants emission standards " DB37/664-2007 ".Can utilize more than 100 ton of carbide slag every day simultaneously, carbide slag dilution back is by the SO in the middle of the present embodiment absorption flue gas
2Generate gypsum, generate more than 100 ton in gypsum every day, year can be created more than 120 ten thousand yuan of benefits.Thereby make the characteristics that the utlity model has:
1, technology maturation, reliable.Over advancing year wet desulfurizing process has been carried out deep research and constantly improved, be combined into a tower as absorption plant by original cooling, absorption, oxidation three towers, flow velocity increases substantially in the tower, and nozzle performance further improves.Wet desulphurization is by the optimization of system, and investment, operating cost and occupation of land significantly reduce.
2, efficient height.Carbide slag-gypsum wet sulfur removal technology desulfurization degree is up to more than 95%, flue gas after the desulfurization not only sulfur dioxide concentration is very low, and dust content also significantly reduces the employing wet desulfurizing process, the sulfur dioxide removal amount is big, helps area and power plant's sulfur dioxide (SO2) emissions overall control.
3, desulfurizing agent is cheap and easy to get.Adopt salt chemical engineering industrial waste--carbide slag is the pressure that effluxes that salt chemical engineering has alleviated industrial waste greatly as desulfurizing agent, and carbide slag is turned waste into wealth, become the abundant raw material that power plant desulfurization is used.
4, stable, coal and unit load change wide adaptability.This technology is applicable to the flue gas desulfurization of the coal of any sulfur content, no matter be sulfur content greater than 3% sulphur coal, or sulfur content is lower than 1% low-sulfur coal, and carbide slag-gypsum wet sulfur removal technology can both adapt to.
5, by-produced gypsum can fully utilize, and forms recycling economy.The desulfurizing byproduct of carbide slag-gypsum wet sulfur removal technology is a dihydrate gypsum.Near the raw materials for production of plasterboard factory can be used as not only can suitably increase benefit, reduce operating cost, and can reduce the disposal costs of desulfurizing byproduct, prolong a grey service life.
6, adopt advanced flue gas desulfurization technique, the coal wide accommodation, incendivity low-sulfur coal not only, also incendivity sulphur coal, power plant's burning coal has bigger range of choice, and desulfurizing byproduct can fully utilize, save and pay SO
2Year charges for disposing pollutants finally obtain the economic benefit of environmental protection benefit and power plant, this technology desulfuration efficiency height, and technology maturation, the absorbent aboundresources has higher promotional value and application prospect.Help improving atmospheric environment and worker's condition of work, the offspring that benefits future generations has higher environmental benefit and social benefit, is the good thing of benefiting the nation and the people, and the raw material that gypsum is produced as plasterboard factory again forms waste recycling, the recycling economy that turns waste into wealth; The pressure that the salt chemical engineering industrial residue takes up an area of pollution can be effectively alleviated in a large amount of uses of carbide slag, has further alleviated the pressure of power plant desulfurization expense simultaneously.
In the device technique field of flue gas desulfurization; Every 1 top, absorption tower that includes is provided with exhaust opening and is set to and connects with chimney; be provided with in the absorption tower 1 slurries district and slurries district on the liquid level mouth that advances that is provided with mouth into and absorption tower 1 be set to and advance exhaust gases passes and connect; oxidation fan 7 is set to connect with the slurries district on absorption tower 1 by pipeline; absorption tower 1 is set to connect respectively with pulping device 2, gypsum treating apparatus 3 and fresh water (FW) system 5, and the technology contents that gypsum treating apparatus 3 is set to connect with pulping device 2 by pipeline is all in protection domain of the present utility model.
Claims (6)
1. the device of a flue gas desulfurization; It is characterized in that: include absorption tower (1), pulping device (2), gypsum treating apparatus (3), fresh water (FW) system (5) and oxidation fan (7); Top, absorption tower (1) is provided with exhaust opening and is set to and connects with chimney, be provided with in the absorption tower (1) slurries district and slurries district on the liquid level mouth that advances that is provided with mouth into and absorption tower (1) be set to and advance exhaust gases passes and connect, oxidation fan (7) is set to connect by the slurries district of pipeline with absorption tower (1), absorption tower (1) is set to connect respectively with pulping device (2), gypsum treating apparatus (3) and fresh water (FW) system (5), and gypsum treating apparatus (3) is set to connect with pulping device (2) by pipeline.
2. the device of flue gas desulfurization according to claim 1; It is characterized in that: absorption tower (1) includes demister (11), spray thrower (12), circulating pump (13), absorption tower gypsum excavationg pump (14) and tower body (15); The top of tower body (15) is provided with exhaust opening, the bottom that the bottom that the exhaust opening bottom of tower body (15) is provided with demister (11) and demister (11) is provided with spray thrower (12) and spray thrower (12) is set to the slurries district, the last liquid level in the slurries district in the tower body (15) is provided with into mouth, slurries district in tower body (15) is provided with agitator and the pipeline that is connected with oxidation fan (7), slurries district in the tower body (15) is set to connect with spray thrower (12) by circulating pump (13), slurries district in the tower body (15) is set to connect with gypsum slurries circulator (31), is set between slurries district in tower body (15) and the spray thrower (12) by pipeline and filtrate baffle-box (21), carbide slag slurries liquid pool (22) and filtrate pond (33) connect respectively.
3. the device of flue gas desulfurization according to claim 1; It is characterized in that: pulping device (2) includes filtrate baffle-box (21), carbide slag slurries liquid pool (22), filter (23), Ca (OH)
2Slurries case (24) and Ca (OH)
2Slush pump (25); Filtrate baffle-box (21) is provided with effluxing mouthful and being set to connect with carbide slag slurries liquid pool (22) by the pump housing, carbide slag slurries liquid pool (22) is set to connect with filter (23) by the pump housing, filter (23) is set to the rotary screen formula, and filter (23) is set to and Ca (OH)
2Slurries case (24) connects, filtrate baffle-box (21), carbide slag slurries liquid pool (22) and Ca (OH)
2The slurries case is respectively arranged with agitator in (24), Ca (OH)
2Slurries case (24) is set to by Ca (OH)
2Slurries district in slush pump (25) and the tower body (15) connects.
4. the device of flue gas desulfurization according to claim 1; It is characterized in that: gypsum treating apparatus (3) includes gypsum slurries circulator (31), gypsum drying device (32), filtrate pond (33), gypsum baffle-box (34) and gypsum baffle-box pump (35); Bottom, slurries district in tower body (15) is set to connect with gypsum baffle-box (34) by absorption tower gypsum excavationg pump (14), gypsum baffle-box (34) connects with gypsum slurries circulator (31) by gypsum baffle-box pump (35), gypsum slurries circulator (31) is set to connect with gypsum drying device (32), gypsum drying device (32) is set to the vacuum belt Dewaterring, gypsum drying device (32) is set to connect with filtrate pond (33), be respectively arranged with agitator in filtrate pond (33) and the gypsum baffle-box (34), filtrate pond (33) are set to connect with filtrate baffle-box (21) and carbide slag slurries liquid pool (22) respectively by the pump housing.
5. the device of flue gas desulfurization according to claim 1; It is characterized in that: fresh water (FW) system (5) includes water tank (51), flush water pump (52) and draining pump (53); Water tank (51) is set to respectively connect with demister (11), connect with gypsum drying device (32) by draining pump (53) by flush water pump (52).
6. according to the device of claim 1,2,3,4 or 5 described flue gas desulfurizations; It is characterized in that: also include accident treatment device (4) and absorption tower district blowoff basin (6); Accident treatment device (4) includes accident slurries case (41) and accident slush pump (42), be provided with agitator in the accident slurries case (41) and be set to tower body (15) in the slurries district connect, accident slurries case (41) is set to connect with absorption tower district blowoff basin (6) by accident slush pump (42), is provided with agitator in the absorption tower district blowoff basin (6) and is set to connect with gypsum slurries circulator (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202265285U CN201524522U (en) | 2009-09-18 | 2009-09-18 | Flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202265285U CN201524522U (en) | 2009-09-18 | 2009-09-18 | Flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524522U true CN201524522U (en) | 2010-07-14 |
Family
ID=42515822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202265285U Expired - Fee Related CN201524522U (en) | 2009-09-18 | 2009-09-18 | Flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201524522U (en) |
-
2009
- 2009-09-18 CN CN2009202265285U patent/CN201524522U/en not_active Expired - Fee Related
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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 |
Owner name: SHANDONG ENERGY MACHINERY GROUP CO., LTD. Free format text: FORMER NAME: SHANDONG TAISHAN JIANNENG MACHINERY GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 271222 Shandong Taishan Xintai Jian energy Machinery Group Co., Ltd., Shandong Patentee after: Shandong Energy Machinery Group Co., Ltd. Address before: 271222 Shandong Taishan Xintai Jian energy Machinery Group Co., Ltd., Shandong Patentee before: Shandong Taishan Jianneng Machinery Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20120918 |