CN101961597A - Compact high-efficiency flue gas desulphurization device - Google Patents
Compact high-efficiency flue gas desulphurization device Download PDFInfo
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- CN101961597A CN101961597A CN 201010268736 CN201010268736A CN101961597A CN 101961597 A CN101961597 A CN 101961597A CN 201010268736 CN201010268736 CN 201010268736 CN 201010268736 A CN201010268736 A CN 201010268736A CN 101961597 A CN101961597 A CN 101961597A
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- desulfurizing agent
- desulfurization
- desulphurization
- flue gas
- demist
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Abstract
The invention discloses a compact high-efficiency flue gas desulphurization device. A defogging and desulphurization chamber is composed of a space desulphurization chamber, two defogging desulphurizers arranged at intervals and a desulphurizing agent tank from top to bottom, wherein the upper part of the space desulphurization chamber is communicated with a boiler flue through an inlet flue, a desulphurization nozzle block and a flue damper; and an outlet flue is arranged between the lower defogging desulphurizer and the desulphurizing agent tank, the bottom of the desulphurizing agent tank is communicated with a desulphurizing agent waste liquor pipe, one end of a circulating pump is connected with the desulphurization nozzle block, the other end is connected with the side wall of the desulphurizing agent tank, and the side wall of the desulphurizing agent tank is also provided with a desulphurizing agent inlet pipe. By arranging the desulphurization nozzle block in the inlet flue and canceling an absorption tower, the invention reduces the equipment space and realizes the chemical reaction of space desulphurization. Based on the principle of wall-surface adsorption, the invention realizes the recovery and the removal of fine desulphurizing agent drops in the flue gas, and ensures that desulphurizing agent liquid films are uniformly distributed on the inner and outer surfaces of steel pipes in the defogging desulphurizers to be subjected to the chemical reaction of surface desulphurization with the flue gas again. Thus, the invention achieves the high-efficiency desulphurization effect, effectively removes the flue gas drops and has a compact structure.
Description
Technical field
The present invention relates to a kind of flue gas desulfur device, particularly relate to a kind of compact high efficient flue gas desulfur device.
Background technology
In the desulfurizing fume of coalpowder boiler technology, normal dry method, semidry method and the wet method three class desulfur technologies of adopting, lime stone gypsum wet desulfur technology is most widely used, its essential characteristic is that flue gas fully mixes and chemical reaction with desulfurizer slurry in the absorption tower, flue gas after the desulfurization need be removed fine drop in the flue gas through special demister, its key problem in technology is the room and time that needs chemical reaction enough in the absorption tower, and flue gas flow rate can not be too high, thereby the absorption tower is bulky.Flue gas behind the chemical reaction need be removed fine drop in the flue gas through special demister, and the one, need enough spaces, the 2nd, there is the flue gas resistance problems of too.Therefore, conventional wet desulphurization exists structure huge, problems such as flue gas resistance loss height, and especially for old unit transformation, the place is difficult to arrange that one-time investment is very big.
Summary of the invention
In order to solve the problem that exists in the background technology, the object of the present invention is to provide a kind of compact high efficient flue gas desulfur device.Cancelled conventional absorption tower, demist absorbs and unites two into one.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes boiler flue, gas baffle, gas approach, desulfurization nozzle group, demist desulfurization chamber, exhaust pass, circulating pump, desulfurizing agent inlet tube and desulfurizing agent sewer pipe; The demist desulfurization chamber is made up of space desulfurization chamber, upper and lower two spaced apart demist devulcanizers and desulfurizing agent pond from top to bottom; The desulfurization chamber top, space of demist desulfurization chamber links to each other with gas approach, and gas approach communicates with boiler flue behind desulfurization nozzle group and damper; Between following demist devulcanizer and desulfurizing agent pond exhaust pass is set, bottom, desulfurizing agent pond is connected with the desulfurizing agent sewer pipe, one end of circulating pump links to each other with the desulfurization nozzle group, linking to each other of desulfurizing agent pond sidewall between the other end of circulating pump and desulfurizing agent sewer pipe and the exhaust pass, the desulfurizing agent inlet tube is installed in the desulfurizing agent pond sidewall between desulfurizing agent sewer pipe and the exhaust pass, or the desulfurizing agent inlet tube is installed in the arrival end of circulating pump.
The radial section of described gas approach and demist desulfurization chamber is circular or square.
Described upper and lower demist devulcanizer structure is identical, combines by the thin-wall steel tube of a plurality of same structures is evenly distributed, and its profile is circular or square.
Described its profile of desulfurization nozzle group is an annular, has the five equilibrium or the desulfurization nozzle of five equilibrium not on the desulfurization nozzle group anchor ring of gas approach one side.
" day " font that described its profile of desulfurization nozzle group is a traverse has the five equilibrium or the desulfurization nozzle of five equilibrium not on " day " font desulfurization nozzle group of gas approach one side.
The useful effect that the present invention has is:
The desulfurization nozzle group is arranged in gas approach, has cancelled conventional absorption tower, reduced the device space, and realized the space desulfurization chemical reaction.Utilize the principle of wall absorption, both realized that the recovery of tiny desulfurizing agent drop removed in the flue gas, make the uniform desulfurizing agent liquid film of thin-wall steel tube surfaces externally and internally in the demist devulcanizer again, and the surface devulcanization chemical reaction takes place once more with flue gas.Reach both high-efficiency desulfurizations, effectively remove the flue gas drop again, compact conformation reduces the purpose of investing.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural principle schematic diagram of annular desulfurization nozzle group.
Fig. 4 is the structural principle schematic diagram of " day " font desulfurization nozzle group.
Among the figure: 1, boiler flue, 2, gas baffle, 3, gas approach, 4, desulfurization nozzle group, 5, the space desulfurization chamber, 6, go up the demist devulcanizer, 7, desulfurizing agent pond, 8, exhaust pass, 9, circulating pump, 10, circulation pipe, 11, desulfurizing agent inlet tube, 12, desulfurizing agent sewer pipe, 13, following demist devulcanizer, 14, thin-wall steel tube.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention includes boiler flue 1, gas baffle 2, gas approach 3, desulfurization nozzle group 4, demist desulfurization chamber, exhaust pass 8, circulating pump 9, desulfurizing agent inlet tube 11 and desulfurizing agent sewer pipe 12; The demist desulfurization chamber is made up of space desulfurization chamber 5, upper and lower two spaced apart demist devulcanizers 6,13 and desulfurizing agent pond 7 from top to bottom; Space desulfurization chamber 5 tops of demist desulfurization chamber link to each other with gas approach 3, and gas approach 3 communicates with boiler flue 1 behind desulfurization nozzle group 4 and damper 2; 7 in following demist devulcanizer 13 and desulfurizing agent pond are provided with exhaust pass 8,7 bottoms, desulfurizing agent pond are connected with desulfurizing agent sewer pipe 12, one end of circulating pump 9 links to each other with desulfurization nozzle group 4, linking to each other of desulfurizing agent pond 7 sidewalls between the other end of circulating pump 9 and desulfurizing agent sewer pipe 12 and the exhaust pass 8, desulfurizing agent inlet tube 11 is installed in desulfurizing agent pond 7 sidewalls between desulfurizing agent sewer pipe 12 and the exhaust pass 8, or desulfurizing agent inlet tube 11 is installed in the arrival end of circulating pump 9.
The radial section of described gas approach 3 and demist desulfurization chamber is circular or square.
Described upper and lower demist devulcanizer 6,13 structures are identical, and by thin-wall steel tube 14 evenly distributed the combining of a plurality of same structures, its profile is circular or square, and its profile is circular as shown in Figure 2.
As shown in Figure 3, described its profile of desulfurization nozzle group is an annular, has the five equilibrium or the desulfurization nozzle of five equilibrium not on the desulfurization nozzle group anchor ring of gas approach one side.
As shown in Figure 4, " day " font that described its profile of desulfurization nozzle group is a traverse has the five equilibrium or the desulfurization nozzle of five equilibrium not on " day " font desulfurization nozzle group of gas approach one side.
Operation principle of the present invention is as follows:
When needs drop into this flue gas desulfur device, open gas baffle 2, sulfur-containing smoke gas enters gas approach 3 from boiler flue 1 by gas baffle 2, the desulfurizing agent fine droplets that is desulfurized nozzle sets 4 ejections is fully washed, the reaction of generation space chemistry, reach first step desulfurized effect, the flue gas that contains a large amount of desulfurizing agent fine droplets is after entering the demist desulfurization chamber, during by the thin-wall steel tube 14 on the last demist devulcanizer 6, a large amount of desulfurizing agent fine particles is caught absorption by thin-wall steel tube 14, form the desulfurizing agent liquid film at thin-wall steel tube 14 surfaces externally and internallies, sulfur-containing smoke gas once more with desulfurizing agent liquid film generation surface chemical reaction, realize desulfurization for the second time.13 effects of following demist devulcanizer are identical with last demist devulcanizer 6, play desulfurization once more and demist effect.The desulfurizing agent liquid film that thin-wall steel tube 14 surfaces externally and internallies form thickens and is torn the thicker drop of broken formation by flue gas, drop onto in the desulfurizing agent pond 7 because its gravity and flue gas carry the acting in conjunction of inertia, and the flue gas after the desulfurization is discharged from exhaust pass 8.
Density increases behind desulfurizing agent and the flue gas generation desulphurization reaction, sink to the bottom in desulfurizing agent pond 7, discharge by desulfurizing agent sewer pipe 12, fresh desulfurizing agent enters desulfurizing agent pond 7 by desulfurizing agent inlet tube 11, the middle and upper part liquid in desulfurizing agent pond 7 enters desulfurization nozzle group 4 once more by circulation pipe 10, circulating pump 9, reach recycling, fully improve the utilization ratio of desulfurizing agent.Fresh desulfurizing agent also can enter circulating pump 9 inlets by desulfurizing agent inlet tube 11, enters desulfurization nozzle group 4 with circulation fluid, realizes the without interruption and metering of fresh desulfurizing agent.
The circulation area of gas approach 3 is near boiler flue 1, the demist desulfurization chamber
The flue gas circulation area only be equivalent to about 1.2 times of boiler flue 1 area, adopt space flue desulfurization, liquid film desulfurization and demist triplicity, compare with conventional wet desulphurization, cancelled conventional bulky absorption tower and the very big demister of resistance, demist absorbs and unites two into one, and flue gas flow rate is not strict with, and desulfuration efficiency is very high, compact conformation has been saved place and investment cost greatly.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (5)
1. a compact high efficient flue gas desulfur device is characterized in that: comprise boiler flue (1), gas baffle (2), gas approach (3), desulfurization nozzle group (4), demist desulfurization chamber, exhaust pass (8), circulating pump (9), desulfurizing agent inlet tube (11) and desulfurizing agent sewer pipe (12); The demist desulfurization chamber is made up of space desulfurization chamber (5), upper and lower two spaced apart demist devulcanizers (6,13) and desulfurizing agent pond (7) from top to bottom; Space desulfurization chamber (5) top of demist desulfurization chamber links to each other with gas approach (3), and gas approach (3) communicates with boiler flue (1) behind desulfurization nozzle group (4) and damper (2); Between following demist devulcanizer (13) and desulfurizing agent pond (7) exhaust pass (8) is set, bottom, desulfurizing agent pond (7) is connected with desulfurizing agent sewer pipe (12), one end of circulating pump (9) links to each other with desulfurization nozzle group (4), linking to each other of desulfurizing agent pond (7) sidewall between the other end of circulating pump (9) and desulfurizing agent sewer pipe (12) and the exhaust pass (8), desulfurizing agent inlet tube (11) is installed in desulfurizing agent pond (7) sidewall between desulfurizing agent sewer pipe (12) and the exhaust pass (8), or desulfurizing agent inlet tube (11) is installed in the arrival end of circulating pump (9).
2. a kind of compact high efficient flue gas desulfur device according to claim 1 is characterized in that: the radial section of described gas approach (3) and demist desulfurization chamber is for circular or square.
3. a kind of compact high efficient flue gas desulfur device according to claim 1, it is characterized in that: described upper and lower demist devulcanizer (6,13) structure is identical, by evenly distributed the combining of thin-wall steel tube (14) of a plurality of same structures, its profile is circular or square.
4. a kind of compact high efficient flue gas desulfur device according to claim 1 is characterized in that: described its profile of desulfurization nozzle group is annular, has the five equilibrium or the desulfurization nozzle of five equilibrium not on the desulfurization nozzle group anchor ring of gas approach one side.
5. a kind of compact high efficient flue gas desulfur device according to claim 1, it is characterized in that: " day " font that described its profile of desulfurization nozzle group is a traverse has the five equilibrium or the desulfurization nozzle of five equilibrium not on " day " font desulfurization nozzle group of gas approach one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010268736 CN101961597A (en) | 2010-08-27 | 2010-08-27 | Compact high-efficiency flue gas desulphurization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010268736 CN101961597A (en) | 2010-08-27 | 2010-08-27 | Compact high-efficiency flue gas desulphurization device |
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| CN101961597A true CN101961597A (en) | 2011-02-02 |
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| CN 201010268736 Pending CN101961597A (en) | 2010-08-27 | 2010-08-27 | Compact high-efficiency flue gas desulphurization device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604711A (en) * | 2012-02-27 | 2012-07-25 | 刘奇 | Multifunctional coal burning sectional desulfurizing agent, civil coal stove desulfurizer and mixed coal |
| CN103055684A (en) * | 2013-02-02 | 2013-04-24 | 山东大学 | Device and process for effectively removing sulfur trioxide in smoke through natural alkali |
| CN103446839A (en) * | 2013-09-18 | 2013-12-18 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN103908880A (en) * | 2014-03-18 | 2014-07-09 | 江苏新中环保股份有限公司 | Efficient transport layer desulphurization device in desulphurization absorption tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053738A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Wet flue gas desulfurizing and hydrargyrum-removing technology based on two-stage oxidation reaction and system thereof |
| CN201239607Y (en) * | 2008-08-15 | 2009-05-20 | 陈丽春 | Spray desulfurizing device |
| US20100175552A1 (en) * | 2007-10-08 | 2010-07-15 | Alcoa Inc. | Systems and methods for removing gaseous pollutants from a gas stream |
| CN201799212U (en) * | 2010-08-27 | 2011-04-20 | 杭州勇灵能源科技有限公司 | Compact type high-efficiency flue gas desulfurization device |
-
2010
- 2010-08-27 CN CN 201010268736 patent/CN101961597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053738A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Wet flue gas desulfurizing and hydrargyrum-removing technology based on two-stage oxidation reaction and system thereof |
| US20100175552A1 (en) * | 2007-10-08 | 2010-07-15 | Alcoa Inc. | Systems and methods for removing gaseous pollutants from a gas stream |
| CN201239607Y (en) * | 2008-08-15 | 2009-05-20 | 陈丽春 | Spray desulfurizing device |
| CN201799212U (en) * | 2010-08-27 | 2011-04-20 | 杭州勇灵能源科技有限公司 | Compact type high-efficiency flue gas desulfurization device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604711A (en) * | 2012-02-27 | 2012-07-25 | 刘奇 | Multifunctional coal burning sectional desulfurizing agent, civil coal stove desulfurizer and mixed coal |
| CN103055684A (en) * | 2013-02-02 | 2013-04-24 | 山东大学 | Device and process for effectively removing sulfur trioxide in smoke through natural alkali |
| CN103446839A (en) * | 2013-09-18 | 2013-12-18 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN103446839B (en) * | 2013-09-18 | 2015-05-20 | 王利国 | Wet desulphurization system with multi-stage humidification demisting device |
| CN103908880A (en) * | 2014-03-18 | 2014-07-09 | 江苏新中环保股份有限公司 | Efficient transport layer desulphurization device in desulphurization absorption tower |
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Application publication date: 20110202 |