CN102188886A - Flue gas fine bubble purification method and apparatus thereof - Google Patents
Flue gas fine bubble purification method and apparatus thereof Download PDFInfo
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- CN102188886A CN102188886A CN2010101155815A CN201010115581A CN102188886A CN 102188886 A CN102188886 A CN 102188886A CN 2010101155815 A CN2010101155815 A CN 2010101155815A CN 201010115581 A CN201010115581 A CN 201010115581A CN 102188886 A CN102188886 A CN 102188886A
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Abstract
The invention discloses a flue gas fine bubble purification method and an apparatus thereof. In the invention, vacuum inspiration imbibition, gas-liquid mixing stirring, fine bubble excitation dispersion and mechanical rapid swirling are integrated. The apparatus has the advantages of simple technology, convenience of maintenance, low operation cost and good desulfurization effect. The method is applicable to the similar fields of desulfurization, dedusting and denitration of flue gases, and is especially suitable to be popularized and applied in the iron and steel industry and the electric industry, so the method has an extensive prospect.
Description
Technical field
The present invention relates to a kind of flue gas purifying method and device for carrying out said.
Background technology
Along with the development of process of industrialization, industrial flue gas cleaning especially desulfurizing industrial fume purifying problem more and more is subject to people's attention.
Existing flue gas desulfurization technique roughly is divided into three kinds of dry method, semidry method and wet methods.Because the desulfuration efficiency height of wet processing, byproduct stable, after handling are convenient to utilize, and are subjected to people's favor day by day, its development speed is also more and more faster.
Most widely used wet process of FGD technology general, that technology is the most ripe is lime/lime stone-gypsum method at present, and the most frequently used equipment is spray column, but has the shower nozzle serious wear, and phenomenons such as obstruction easily take place.Spray column gas-liquid mass transfer efficient is general in addition; Absorption reaction is incomplete, and absorption liquid needs circulation repeatedly, and power consumption is big; Three to four layers of thousands of slurries nozzle of equipment internal upper part need periodic replacement; Liquid-gas ratio is big, generally is 13: 1.
In addition, newer technology is to adopt swirl injection aeration desulfurizing tower form, and it is by swirl injection aeration tube assembly with flue gas, continue and pour in the serum storage tank in jet bubbling mode, sulfur in smoke and alkali lye haptoreaction, further absorption, oxidation generates gypsum.Flue gas is after treatment discharged by chimney through the flue gas exhaust pipe.This technology has been saved the requisite atomizer of other form spray columns, has significantly reduced the possibility of obstruction and fouling.Allowing simultaneously has higher flowing velocity in the swirl injection aeration tube, thereby sectional area is less when handling big exhaust gas volumn, saves cost; It is stronger to purify range accommodation simultaneously, can the flue gas of big exhaust gas volumn and exhaust gas volumn and sulfur content excursion broad effectively be purified; Gas-liquid mass transfer is good, and the desulfuration efficiency height can reach more than 95%; Liquid-gas ratio is 1/10 of a general spray desulfurizing tower, has saved water for industrial use, and one-time investment reduces, and energy consumption reduces, and operating cost reduces.Desulfurization slurry need not circulate, and has cancelled the configuration of circulating pump, and energy consumption reduces, and investment reduces.Because the size of flue gas jet bubbling, be the size of jet aeration caliber and time that bubbling stops in slurries to have determined whether sulfur in smoke can be absorbed oxidation fully, so the quantity of the flue gas treating capacity of this technology and jet aeration pipe have substantial connection.The aeration tube enormous amount that needs when handling big exhaust gas volumn is unfavorable for that maintenance changes.
Above-mentioned technology all is that the reaction by sulfur dioxide in flue gas and alkali lye realizes desulfurization, its core all is will be by the contact area and the time of flue gas and alkali lye, and the former can be described as hydro-peening, and the latter can be described as washing, obviously with regard to desulfurized effect, hydro-peening is obviously not as washing.The key of washing desulfurization then depends on the size of bubbling, and obviously bubble is more little, and flue gas and alkali lye contact area are big more, desulfurized effect is good more, but the defective of swirl injection aeration sulfur removal technology is that bubbling size and exhaust gas volumn and flue gas pressures are contradiction, and the jet aeration caliber is big more, disposal ability is big, but bubbling is also just big more, and the contact area of flue gas and alkali lye is more little, and desulfurized effect is poor more, on the contrary, if reduce the jet aeration caliber, bubbling is little, but disposal ability does not just increase.In addition, this technology adopts passes through pump and beats alkali lye eddy flow in desulfurizing tower and come the effect of refinement bubbling also very little.
Summary of the invention
At the above-mentioned defective of existing technology in the gas cleaning process, the object of the present invention is to provide a kind ofly integrate that vacuum suction imbibition, gas-liquid mixed are stirred, microvesicle excites disperse, the machinery novel flue gas purifying method and the device for carrying out said of eddy flow fast, reach best gas cleaning and dust removing effects.
The present invention is achieved in that the fine bubble purification method of a kind of flue gas, in the container that dashes the slurries of annotating certain liquid level, the tubbiness cell that arrange openings is downward, cell and container bottom have certain distance, impeller is set in the cell, the cell top is provided with air entry and inlet opening, air entry is connected with admission line, the suction that produces when impeller rotates at a high speed produces negative pressure region between impeller and cell top, simultaneously import cell in by air entry and inlet opening flue gas and part slurries, entering the flue gas of cell and impeller that slurries are rotated at a high speed mixes fast, produce countless fine bubbles, and discharged outside the cell by impeller, the flue gas microvesicle is discharged behind the cell along with the disperse of eddy flow limit, limit spiral come-up, limit and slurry reaction reach the purpose of gas cleaning.The device for carrying out said of described method comprises container, the impeller unit that slurries are housed, the suction cell that holds impeller.
The described container that slurries are housed is cylindrical or square, and lid is arranged at top, and the container side wall between lid or slurries and lid is provided with exhaust outlet; Container bottom is provided with the sediment discharge mouth; On near the sidewall the container bottom, also be provided with slurry inlet and outlet;
The transmission device of described impeller unit is fixed on container cover top, and impeller spindle passes container cover and extend into slurries inside, the terminal fixed impeller of main shaft; Impeller spindle has sleeve outward, and upper cartridge and container cover are fixed, and bottom and impeller cell are fixed, between main shaft and the sleeve spring bearing are housed.
Described suction cell, be tubbiness, Open Side Down, impeller is contained in the cell, and certain interval is arranged with the cell top, the cell top has suction hole and is connected with admission line, and admission line passes chamber wall or container cover and affixed with it, also has the inlet opening of some in the top area of suction cell.
Description of drawings
Accompanying drawing 1 is embodiments of the invention 1 structural representations.
Accompanying drawing 2 is embodiments of the invention 2 structural representations.
Sequence number 1 drive unit among the figure; 2 main shafts; 3 sleeves; 4 container cover; 5 exhaust outlets; 6 containers; The outlet of 7 slurries; 8 slurries; 9 inlet openings; 10 impellers; 11 sediment discharge mouths; 12 suction holes; 13 cells; 14 slurry inlet; 15 air inlet pipe; 16 bearings.
The difference of two embodiment is the position difference of air inlet.Embodiment 2 adopts rack sleeve as air inlet pipe.
The invention will be further described below in conjunction with the specific embodiment shown in accompanying drawing 1 and the accompanying drawing 2.
The embodiment of fine bubble purification method of a kind of flue gas and device is used for flue gas desulfurization, comprises container 6, the impeller unit that alkaline slurry is housed, the suction cell 13 that holds impeller 10 etc.
The suction cell 13 of embodiment 1, be tubbiness, Open Side Down, impeller 10 is contained in the cell 13, and certain interval is arranged with cell 13 tops, cell 13 tops have suction hole 12 and communicate with air inlet pipe 15, and air inlet pipe 15 is connected with container 6 sidewalls or container cover 4, also has the inlet opening 9 of some in the top area of cell 13.
The suction hole at suction cell 13 tops of embodiment 2 is the looping pit between rack sleeve and the main shaft, and air inlet pipe one end communicates with sleeve, and the air inlet pipe other end is connected with chamber wall or container cover.
Use embodiments of the invention when work, at first in container 6, inject the alkaline slurry of certain liquid level, drive unit 1 starts then, by 10 rotations of main shaft 2 impeller, impeller 10 rotations produce centrifugal force the slurries in the cell are thrown away, simultaneously between impeller 10 and cell 13 tops, form negative pressuren zone, so automatically sucked the extraneous flue gas that certain pressure is arranged via air inlet pipe 15 and suction hole 12, simultaneously, the part slurries also enter negative pressuren zone by the inlet at cell 13 tops, under the strong agitation effect of impeller 10, flue gas and slurries fully mix in cell 13, form countless fine bubbles, and by outside the impeller 10 discharge cells 13, the flue gas microvesicle is discharged cell 13 backs along with the disperse of eddy flow limit, limit spiral come-up, limit and slurry reaction, the sulfur dioxide flue gas in the fine bubble contacts with alkali lye 8 fully with dust, reaction is also absorbed by slurries 8, reaches the purpose of gas cleaning.
The circulation of slurries 8 is finished by slurry inlet 14 and slurries outlet 7.After being discharged by slurries outlet 7, the gypsum slurries that generates during the inherent gas liquid reaction of desulfurization container 6 enters the subsequent treatment system, gypsum particle thing in the slurries is by classification and concentrate the back and discharge, and the slurries after the purification turn back to slurry inlet 14 again and enter in the desulfurization container and recycle.
The sediment that produces in the process is discharged by sediment discharge mouth 11.
For traditional flue gases purification, the present invention integrates that vacuum suction imbibition, gas-liquid mixed are stirred, microvesicle excites disperse, machinery eddy flow fast, technology is simple, easy to maintenance, operating cost is low, and desulfurized effect is good, can be suitable at industrial flue gas cleaning such as all flue gas desulfurization, dedusting and denitration and process field, be particularly suitable for applying in iron and steel metallurgy industry and power industry, prospect is boundless.
Claims (5)
1. fine bubble purification method of flue gas and device, it is characterized in that: in the container that dashes the slurries of annotating certain liquid level, the tubbiness cell that arrange openings is downward, cell and container bottom have certain distance, impeller is set in the cell, the cell top is provided with air entry and inlet opening, air entry is connected with admission line, the suction that produces when impeller rotates at a high speed produces negative pressure region between impeller and cell top, simultaneously import cell in by air entry and inlet opening flue gas and part slurries, entering the flue gas of cell and impeller that slurries are rotated at a high speed mixes fast, produce countless fine bubbles, and discharged outside the cell by impeller, the flue gas microvesicle is discharged behind the cell along with the disperse of eddy flow limit, limit spiral come-up, limit and slurry reaction reach the purpose of gas cleaning.The device for carrying out said of described method comprises container, the impeller unit that slurries are housed, the suction cell that holds impeller.
2. container that slurries are housed as claimed in claim 1, it is characterized in that: container is cylindrical or square, and lid is arranged at top, the container side wall between lid or slurries and lid is provided with exhaust outlet; Container bottom is provided with the sediment discharge mouth; On near the sidewall the container bottom, also be provided with slurry inlet and outlet.
3. impeller unit as claimed in claim 1, it is characterized in that: impeller unit comprises drive unit, main shaft, rack sleeve, impeller etc., drive unit is fixed on container cover top, and impeller spindle passes container cover and extend into slurries inside, the fixed impeller of main shaft art end; Impeller spindle has sleeve outward, and upper cartridge and container cover are fixed, and bottom and impeller cell are fixed, between main shaft and the sleeve bearing are housed.
4. suction cell that holds impeller as claimed in claim 1, it is characterized in that: cell is tubbiness, Open Side Down, impeller is contained in the cell, and certain interval is arranged with the cell top, the cell top has suction hole and communicates with admission line, and admission line is connected with chamber wall or container cover, also has the inlet opening of some in the top area of cell.
5. suction cell that holds impeller as claimed in claim 1, it is characterized in that: cell is tubbiness, Open Side Down, impeller is contained in the cell, and certain interval is arranged with the cell top, and the suction hole at cell top is the looping pit between rack sleeve and the main shaft, air inlet pipe one end communicates with sleeve, the air inlet pipe other end is connected with chamber wall or container cover, also has the inlet opening of some in the top area of cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101155815A CN102188886A (en) | 2010-03-02 | 2010-03-02 | Flue gas fine bubble purification method and apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101155815A CN102188886A (en) | 2010-03-02 | 2010-03-02 | Flue gas fine bubble purification method and apparatus thereof |
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| CN102188886A true CN102188886A (en) | 2011-09-21 |
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| CN2010101155815A Pending CN102188886A (en) | 2010-03-02 | 2010-03-02 | Flue gas fine bubble purification method and apparatus thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846000A (en) * | 2014-03-20 | 2014-06-11 | 上海千紫香料有限公司 | Closed space air purifier |
| CN105688547A (en) * | 2015-06-23 | 2016-06-22 | 魏中振 | Complete desulfurization, denitrification and dedusting |
| CN107511041A (en) * | 2017-08-16 | 2017-12-26 | 盐城市兰丰环境工程科技有限公司 | A kind of equipment for denitrifying flue gas |
| CN108014570A (en) * | 2016-11-03 | 2018-05-11 | 张勇球 | Wash bubbling air purifier |
| CN108339376A (en) * | 2018-04-24 | 2018-07-31 | 青川县天运金属开发有限公司 | A kind of centrifugation Ash-tray and its net cigarette method |
| CN108619860A (en) * | 2017-03-16 | 2018-10-09 | 侯增俭 | Water washing air purifier |
| CN109158046A (en) * | 2018-11-14 | 2019-01-08 | 辽阳博仕流体设备有限公司 | A kind of blended absorbent exhaust gas processing device |
| CN111704943A (en) * | 2020-06-23 | 2020-09-25 | 张岩松 | Dewatering device is used in natural gas processing |
| CN112023676A (en) * | 2020-09-07 | 2020-12-04 | 浙江兰电环保集团有限公司 | Desulfurization and denitrification equipment provided with filter screen cylinder and based on negative pressure water absorption and spraying |
| CN112797803A (en) * | 2020-12-31 | 2021-05-14 | 重庆长江造型材料（集团）股份有限公司 | Method and mechanism for treating tail gas containing organic high-temperature thermal cracking substances in kiln |
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| US4297214A (en) * | 1979-02-05 | 1981-10-27 | Claudio Guarnaschelli | Aerator |
| CN1250682A (en) * | 1998-10-09 | 2000-04-19 | 液体空气乔治洛德方法利用和研究有限公司 | Equipment for agitating liquid in reactor and at same time jetting gas into said liquid |
| CN2550043Y (en) * | 2002-04-23 | 2003-05-14 | 戴尔烈 | Cyclone flow spray aeration desulfurization dust remover |
| CN2688366Y (en) * | 2004-03-17 | 2005-03-30 | 四川大学 | Flue desulfurizing resources apparatus |
| CN2742297Y (en) * | 2004-11-18 | 2005-11-23 | 北京纬纶华业环保科技有限公司 | High efficiency nano desulfurizing machine |
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2010
- 2010-03-02 CN CN2010101155815A patent/CN102188886A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4297214A (en) * | 1979-02-05 | 1981-10-27 | Claudio Guarnaschelli | Aerator |
| CN1250682A (en) * | 1998-10-09 | 2000-04-19 | 液体空气乔治洛德方法利用和研究有限公司 | Equipment for agitating liquid in reactor and at same time jetting gas into said liquid |
| CN2550043Y (en) * | 2002-04-23 | 2003-05-14 | 戴尔烈 | Cyclone flow spray aeration desulfurization dust remover |
| CN2688366Y (en) * | 2004-03-17 | 2005-03-30 | 四川大学 | Flue desulfurizing resources apparatus |
| CN2742297Y (en) * | 2004-11-18 | 2005-11-23 | 北京纬纶华业环保科技有限公司 | High efficiency nano desulfurizing machine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846000A (en) * | 2014-03-20 | 2014-06-11 | 上海千紫香料有限公司 | Closed space air purifier |
| CN105688547A (en) * | 2015-06-23 | 2016-06-22 | 魏中振 | Complete desulfurization, denitrification and dedusting |
| CN108014570A (en) * | 2016-11-03 | 2018-05-11 | 张勇球 | Wash bubbling air purifier |
| CN108619860A (en) * | 2017-03-16 | 2018-10-09 | 侯增俭 | Water washing air purifier |
| CN107511041A (en) * | 2017-08-16 | 2017-12-26 | 盐城市兰丰环境工程科技有限公司 | A kind of equipment for denitrifying flue gas |
| CN108339376A (en) * | 2018-04-24 | 2018-07-31 | 青川县天运金属开发有限公司 | A kind of centrifugation Ash-tray and its net cigarette method |
| CN108339376B (en) * | 2018-04-24 | 2024-04-19 | 青川县天运金属开发有限公司 | Centrifugal smoke purifier and smoke purifying method thereof |
| CN109158046A (en) * | 2018-11-14 | 2019-01-08 | 辽阳博仕流体设备有限公司 | A kind of blended absorbent exhaust gas processing device |
| CN111704943A (en) * | 2020-06-23 | 2020-09-25 | 张岩松 | Dewatering device is used in natural gas processing |
| CN112023676A (en) * | 2020-09-07 | 2020-12-04 | 浙江兰电环保集团有限公司 | Desulfurization and denitrification equipment provided with filter screen cylinder and based on negative pressure water absorption and spraying |
| CN112797803A (en) * | 2020-12-31 | 2021-05-14 | 重庆长江造型材料（集团）股份有限公司 | Method and mechanism for treating tail gas containing organic high-temperature thermal cracking substances in kiln |
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Application publication date: 20110921 |