CN101862587A - Wet flue-gas desulfurization tower based on baffle air distribution - Google Patents

Wet flue-gas desulfurization tower based on baffle air distribution Download PDF

Info

Publication number
CN101862587A
CN101862587A CN 201010170455 CN201010170455A CN101862587A CN 101862587 A CN101862587 A CN 101862587A CN 201010170455 CN201010170455 CN 201010170455 CN 201010170455 A CN201010170455 A CN 201010170455A CN 101862587 A CN101862587 A CN 101862587A
Authority
CN
China
Prior art keywords
slurry
tower
desulfurization tower
air distribution
flue
Prior art date
Application number
CN 201010170455
Other languages
Chinese (zh)
Inventor
潘卫国
金强
郭瑞堂
冷雪峰
朱文斌
丁承刚
Original Assignee
上海电气石川岛电站环保工程有限公司
上海电力学院
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海电气石川岛电站环保工程有限公司, 上海电力学院 filed Critical 上海电气石川岛电站环保工程有限公司
Priority to CN 201010170455 priority Critical patent/CN101862587A/en
Publication of CN101862587A publication Critical patent/CN101862587A/en

Links

Abstract

The invention discloses a wet flue-gas desulfurization tower based on baffle air distribution. A flue-gas outlet is formed at the top of the desulfurization tower, and a desulfurizer slurry tank is arranged at the bottom thereof; a flue-gas inlet tilting downwards, a baffle air distribution area, a slurry spraying area and a demister area are sequentially arranged from the desulfurizer slurry tank at the bottom thereof to the flue-gas outlet at the top thereof; the desulfurizer slurry tank is connected with the slurry spraying area via an external slurry circulating pump; and the desulfurizer slurry tank is further connected to an external limestone slurry supplying device and an air oxidation system. Accordingly, the flue gas entering the desulfurization tower is subjected to baffle air distribution to form an even and upward turbulent flow; then, the flue gas further passes through the slurry spraying area arranged in a staggered manner, so that SO2 in the flue gas can be converted into CaSO3; the generated CaSO3, along with the absorption slurry, drops into the slurry tank at the lower part of the desulfurization tower drop by drop; and finally, the CaSO3 is oxidized into plaster. Compared with the wet flue-gas desulfurization tower based on even air distribution, the wet flue-gas desulfurization tower of the invention has the characteristics of simple structure and low cost; and for less components are arranged in the desulfurization tower, thus reducing the influence on the internal pressure drop of the desulfurization tower.

Description

A kind of wet flue-gas desulfurization tower based on baffle air distribution device

Technical field

The present invention relates to purification treatment technology, be specifically related to a kind of dividing plate cloth humidifying method desulfurizing tower device flue gas that coal-fired power station boiler discharges.

Background technology

In the primary energy of China constituted, coal occupied critical leading position.Based on the thermal power generation of fire coal but can produce a large amount of polluters during coal combustion, be the pollution sources of present China air pollution emission maximum, its harmfulness has become common recognition.The SO that fire coal brings 2Pollute the subject matter of being not only Chinese air environmental pollution with acid rain, still restrict the important environmental factor of economic stable coordination development at present.In general, SO 2SO in total emission volumn and the flue gas 2The concentration increment rate is relevant with the sulfur content of Coal-fired capacity and fire coal.Power industry is as coal-fired rich and influential family, and it is more than half that the coal quantity of consumption accounts for national coal total output, and for many years in China's electric structure the thermoelectricity proportion high, all-the-time stable is about 80%.Therefore, power industry is China SO 2Most important emission source, the SO of control in the power generation process 2Discharging, the serious acid rain pollution problem has great importance for solving day by day.

At present, flue gas desulphurization technology commonly used mainly contains wet method, dry method and semidry method etc.Wherein, wet fuel gas desulfurizing technology has become the flue gas desulfurization technique of main flow owing to have advantages such as operational reliability is good, desulfuration efficiency is high, coal adaptability is strong.In wet fuel gas desulfurizing technology, desulfurizing tower is the core component of whole technology, and desulfurizing tower commonly used mainly contains spray column, liquid column tower, bubble tower and double etc.In these towers, advantage such as that spray column has is simple in structure, resistance is little has obtained to use widely.

But, for present traditional desulfurizing tower,, flue gas flows because entering then to turn in the tower upwards from side direction, and this has just caused inhomogeneous that the gas-liquid two-phase flow velocity distributes in the tower, will make the tower internal drop increase like this, and desulfuration efficiency reduces.A kind of tower for flue gas desulfurization in homogeneous air-humidifying method device of the inventor (patent No.: 201010138758.3) compare with the present invention and mainly exist the tower inner member many, the more relatively and relatively large shortcoming of investment once to tower internal drop influence, the present invention has proposed a kind of wet flue-gas desulfurization tower based on baffle air distribution device in order to solve above-mentioned shortcoming.

Summary of the invention

Purpose of the present invention is exactly the desulfurizing tower device that a kind of sulfur method of dividing plate cloth humidifying method flue gas and the gas-liquid two-phase flow field that can evenly distribute thereof will be provided.

Technical scheme of the present invention

A kind of wet flue-gas desulfurization tower based on baffle air distribution device

A kind of wet flue-gas desulfurization tower based on baffle air distribution device, comprise desulfurizing tower 8, described desulfurizing tower 8 comprises smoke inlet 3, exhanst gas outlet 7, desulfurization product plasma discharge mouth 1, slurries spray district 5, demister district 6, desulfurizer slurry pond 9, the outside device for supplying 10 of lime stone slurry, oxidation air system 11 and slurry circulating pump 2 and dividing plate wind region 4;

Exhanst gas outlet 7 is opened at the top of desulfurizing tower 8, and desulfurizer slurry pond 9 is located at the bottom of desulfurizing tower 8, and desulfurizer slurry pond 9 bottom sides have desulfurization product plasma discharge mouth 1;

The outside device for supplying 10 of lime stone slurry is connected with desulfurizer slurry pond 9 respectively with oxidation air system 11;

The desulfurizer slurry pond, bottom 9 of desulfurizing tower 8 and top exhanst gas outlet 7 are provided with downward-sloping smoke inlet 3, dividing plate wind region 4, slurries spray district 5, demister district 6 from bottom to top successively, and slurries pond 9 sprays between the district 5 with slurries and links to each other by external slurry circulating pump 2;

Downtilt angles between smoke inlet 3 and the horizontal plane is 10~20 °, dividing plate wind region 4 districts in the place ahead of smoke inlet 3 are provided with one and thickly are the dividing plate of 0.2m, its width extends to the tower center always, and its inclination angle is consistent with the inclination angle of smoke inlet 3, is downward 10~20 a ° inclination angle;

Slurries spray district 5 is provided with the lime stone slurry spraying layer of 3 floor interlaced arrangement;

The drop that the demister district, top 6 of desulfurizing tower 8 can remove in the flue gas.

A kind of application of wet flue-gas desulfurization tower based on baffle air distribution device

Adopt above-mentioned a kind of wet flue-gas desulfurization tower based on baffle air distribution device to carry out desulfurization, the technical process of its desulfurization is as follows:

The flue gas that needs desulfurization is at first passed through the dedusting preliminary treatment, to send into desulfurizing tower through desulfurizing tower bottom inlet with downward-sloping angle through the flue gas of pre-dust removal process, then carry out rectification so that flue gas flow field is evenly distributed through the dividing plate wind region, the flue gas spraying layer of top interlaced arrangement in the desulfurizing tower of flowing through then, with the lime stone slurry drop counter current contacting of spraying layer ejection, wherein contained SO 2Be absorbed and form CaSO 3, flue gas has also been strengthened the gas-liquid mass transfer between flue gas and the slurries simultaneously owing to the spray rectification that is subjected to slurries makes its Flow Field Distribution more even at this moment, has promoted SO 2Absorption.

Lime stone slurry absorbs SO 2Form CaSO 3After, contain CaSO 3Fall in the slurries pond of desulfurizing tower bottom, sufficient oxidation reaction takes place with air, the by-produced gypsum that is generated is discharged through the calcium plaster liquid pump in bottom, slurries pond, simultaneously, the flow through demister of desulfurizing tower upper area of clean flue gas after the desulfurization, remove drop entrained in the flue gas, the clean flue gas of gained is drawn from the desulfurizing tower top exit and is entered chimney.

Wherein inlet flue gas preferably with become with horizontal plane 10~20 ° in lower angle is introduced desulfurizing tower, flow process increases after can making flue gas enter desulfurizing tower like this, make on the one hand the damp impacts of flue gas to offside tower wall, and make and the time lengthening that flue gas flow direction deflects and puts in order help the even distribution of flue gas flow field; Also prolong the time of contact of gas-liquid two-phase in tower on the other hand, helped the carrying out of desulphurization reaction.

Lime stone slurry pH value in the above-mentioned desulfurizing tower slurries pond is controlled at 5.4~5.6 and is advisable.Like this, can guarantee that lime stone has suitable rate of dissolution to provide and SO 2Reaction With , so that the SO in the flue gas 2All the time be in the optimum chemical reactiveness with lime stone slurry, with further raising SO 2Removal efficiency.

In the above-mentioned technology, SO 2At first water-soluble, generate H 2SO 3, then with lime stone slurry in the CaCO that dissolves 3Reaction generates CaSO 3, its chemical equation is:

Simultaneously, the air that blasts in the slurries pond constantly with CaSO 3Reaction generates CaSO 4, its chemical equation is:

Gypsum slurries is discharged through the calcium plaster liquid pump in bottom, slurries pond, removes wherein contained moisture by hydrocyclone and vacuum belt dewaterer, finally obtains by-produced gypsum.

Beneficial effect of the present invention

A kind of wet flue-gas desulfurization tower based on baffle air distribution device provided by the invention and a kind of tower for flue gas desulfurization in homogeneous air-humidifying method device (patent No.: 201010138758.3) compare, wind region of the present invention has only replaced a kind of two-layer venturi mozzle layer of tower for flue gas desulfurization in homogeneous air-humidifying method device with a dividing plate, have simple in structure, cost is low, because the tower inner member is few, the tower internal drop is influenced little characteristics simultaneously thereby have.

Description of drawings

Fig. 1, dividing plate cloth wind and smoke qi exhaustion sulphur apparatus structure schematic diagram

A-A direction schematic diagram in Fig. 2, the dividing plate cloth wind and smoke qi exhaustion sulphur apparatus structure schematic diagram

Fig. 3, numerical simulation tradition desulfurizing tower cross section flue gas flow field speed cloud atlas

Fig. 4, numerical simulation dividing plate cloth wind fume desulfurizing tower cross section flue gas flow field speed cloud atlas

The specific embodiment

In conjunction with the accompanying drawings technology of the present invention and device thereof are further specified at a coal-burning boiler unit institute discharged flue gas below.

Embodiment 1

The structural representation of dividing plate cloth wind fume desulfurizing tower as shown in Figure 1, the A-A direction view in its median septum cloth wind and smoke qi exhaustion sulphur tower structure schematic diagram as shown in Figure 2.

A kind of wet flue-gas desulfurization tower based on baffle air distribution device, comprise desulfurizing tower 8, described desulfurizing tower 8 comprises smoke inlet 3, exhanst gas outlet 7, desulfurization product plasma discharge mouth 1, slurries spray district 5, demister district 6, desulfurizer slurry pond 9, the outside device for supplying 10 of lime stone slurry, oxidation air system 11 and slurry circulating pump 2 and dividing plate wind region 4;

Exhanst gas outlet 7 is opened at the top of desulfurizing tower 8, and desulfurizer slurry pond 9 is located at the bottom of desulfurizing tower 8,

Desulfurizer slurry pond 9 bottom sides have desulfurization product plasma discharge mouth 1;

The outside device for supplying 10 of lime stone slurry is connected with desulfurizer slurry pond 9 respectively with oxidation air system 11;

The desulfurizer slurry pond, bottom 9 of desulfurizing tower 8 and top exhanst gas outlet 7 are provided with downward-sloping smoke inlet 3, dividing plate wind region 4, slurries spray district 5, demister district 6 from bottom to top successively, and slurries pond 9 sprays between the district 5 with slurries and links to each other by external slurry circulating pump 2;

Angle of inclination between smoke inlet 3 and the horizontal plane is 10~20 °, dividing plate wind region 4 districts in the place ahead of smoke inlet 3 are provided with one and thickly are the dividing plate of 0.2m, its width extends to the tower center always, and its inclination angle is consistent with the inclination angle of smoke inlet 3, is downward 10~20 a ° inclination angle;

Slurries spray district 5 is provided with the lime stone slurry spraying layer of 3 floor interlaced arrangement;

Desulfurizing tower top is provided with demister district 6 to remove the drop in the flue gas.

Embodiment 2

Adopt the fume desulfurizing tower of traditional non-dividing plate cloth wind to carry out desulfurization

From the flue gas of boiler discharge, wherein SO 2Concentration is 1500mg/m 3, be 6785m through after the electric cleaner dedusting, selecting flue gas flow by booster fan 3/ h sends in the desulfurizing tower 8 through the smoke inlet 3 of desulfurizing tower 8, flue gas is divided into two-way, forming one respectively upwards flows with an anticlockwise vortex clockwise, and continue upwards to flow, pass the spray district 5 of interlaced arrangement above in desulfurizing tower 8, the lime stone slurry in the slurries pond 9 is 67.85m through lime stone slurry circulating pump 2 with the flow 3/ h constantly is transported to spray district 5, through the nozzle ejection, contacts with flue gas adverse current, thereby finishes desulfurization.Simultaneously, lime stone slurry device for supplying 10 is supply lime stone slurry in slurries pond 9 constantly, keeps its pH value between 5.4~5.6; 11 of simultaneous oxidation air systems are air supply in slurries pond 9 constantly, with CaSO 3Be oxidized to CaSO 4, the gypsum slurries of generation is then discharged by desulfurizing byproduct plasma discharge mouth 1, forms by-produced gypsum after dewatering, and smoke outlet utilizes moral Figure 35 0XL flue gas analyzer to measure outlet SO 2It is 93.7% that concentration, calculating can get desulfuration efficiency.

Limestone particle size in the used lime stone slurry is 30-50 μ m, and the slurries solid content is 20wt%, import SO 2Concentration is 1500mg/m 3

Embodiment 3

The fume desulfurizing tower of employing dividing plate cloth wind of the present invention carries out desulfurization

From the flue gas of boiler discharge, wherein SO 2Concentration is 1500mg/m 3, be 6785m through after the electric cleaner dedusting, selecting flue gas flow by booster fan 3/ h sends in the desulfurizing tower 8 through the smoke inlet 3 of desulfurizing tower 8, flue gas forms equally distributed flue gas turbulent flow through dividing plate 4 rectifications, and continue upwards to flow, pass the spray district 5 of interlaced arrangement above in desulfurizing tower 8, the lime stone slurry in the slurries pond 9 is 67.85m through lime stone slurry circulating pump 2 with the flow 3/ h constantly is transported to spray district 5, through the nozzle ejection, contacts with flue gas adverse current, thereby finishes desulfurization.Simultaneously, lime stone slurry device for supplying 10 is supply lime stone slurry in slurries pond 9 constantly, keeps its pH value between 5.4~5.6; 11 of simultaneous oxidation air systems are air supply in slurries pond 9 constantly, with CaSO 3Be oxidized to CaSO 4, the gypsum slurries of generation is then discharged by desulfurizing byproduct plasma discharge mouth 1, forms by-produced gypsum after dewatering, and smoke outlet utilizes moral Figure 35 0XL flue gas analyzer to measure outlet SO 2It is 97.1% that concentration, calculating can get desulfuration efficiency.

Limestone particle size in the used lime stone slurry is 30-50 μ m, and the slurries solid content is 20wt%, import SO 2Concentration is 1500mg/m 3

Fig. 3 is the CFD analog result of the flue gas flow field speed cloud atlas on the traditional desulfurizing tower cross section.

Fig. 4 is the CFD analog result of the desulfurizing tower cross section flue gas flow field speed cloud atlas of employing dividing plate cloth wind.

Can find out intuitively from Fig. 3 and Fig. 4, compare with traditional desulfurizing tower that the uniformity that the flue gas flow rate in the dividing plate cloth wind desulfurizing tower distributes has obtained tangible improvement, this has also verified the reasonability of this invention theoretically.

Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.

Claims (6)

1. wet flue-gas desulfurization tower based on baffle air distribution device, comprise desulfurizing tower (8), described desulfurizing tower (8) comprises smoke inlet (3), exhanst gas outlet (7), desulfurization product plasma discharge mouth (1), slurries spray district (5), demister district (6), desulfurizer slurry pond (9), the outside device for supplying (10) of lime stone slurry, oxidation air system (11) and slurry circulating pump (2), it is characterized in that also comprising dividing plate wind region (4);
Described exhanst gas outlet (7) is opened at the top of desulfurizing tower (8), and desulfurizer slurry pond (9) are located at the bottom of desulfurizing tower (8), and desulfurizer slurry pond (9) bottom side has desulfurization product plasma discharge mouth (1); Be provided with smoke inlet (3), dividing plate wind region (4), slurries spray districts (5) and demister district (6) between described desulfurizer slurry pond (9) and the top exhanst gas outlet (7) from bottom to top successively;
Wherein desulfurizer slurry pond (9) are distinguished between (5) with the slurries spray and are linked to each other by external slurry circulating pump (2);
The outside device for supplying of lime stone slurry (10) is connected with desulfurizer slurry pond (9) respectively with oxidation air system (11).
2. a kind of wet flue-gas desulfurization tower based on baffle air distribution device as claimed in claim 1 is characterized in that described dividing plate wind region (4) district is provided with a dividing plate.
3. a kind of wet flue-gas desulfurization tower based on baffle air distribution device as claimed in claim 2 is characterized in that the thick 0.2m of being of described dividing plate, and its width extends to the tower center always, and its inclination angle is consistent with smoke inlet (3) inclination angle.
4. a kind of wet flue-gas desulfurization tower based on baffle air distribution device as claimed in claim 1 is characterized in that the downtilt angles between described smoke inlet (3) and the horizontal plane is 10~20 °.
5. a kind of wet flue-gas desulfurization tower based on baffle air distribution device as claimed in claim 1 is characterized in that described slurries spray districts (5) are provided with the spraying layer of interlaced arrangement.
6. a kind of wet flue-gas desulfurization tower based on baffle air distribution device as claimed in claim 2 is characterized in that the spraying layer that described slurries spray districts (5) are provided with interlaced arrangement is 3 floor.
CN 201010170455 2010-05-10 2010-05-10 Wet flue-gas desulfurization tower based on baffle air distribution CN101862587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010170455 CN101862587A (en) 2010-05-10 2010-05-10 Wet flue-gas desulfurization tower based on baffle air distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010170455 CN101862587A (en) 2010-05-10 2010-05-10 Wet flue-gas desulfurization tower based on baffle air distribution

Publications (1)

Publication Number Publication Date
CN101862587A true CN101862587A (en) 2010-10-20

Family

ID=42954627

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010170455 CN101862587A (en) 2010-05-10 2010-05-10 Wet flue-gas desulfurization tower based on baffle air distribution

Country Status (1)

Country Link
CN (1) CN101862587A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102512943A (en) * 2011-11-29 2012-06-27 南京龙玖环境工程有限公司 Smoke desulfurization tower with smashing device
CN102941011A (en) * 2012-11-26 2013-02-27 广东依科电力技术有限公司 Spray desulfurizer and working method thereof
CN103182242A (en) * 2012-11-26 2013-07-03 广东依科电力技术有限公司 Spray tower for desulfurization project
CN103432893A (en) * 2013-08-15 2013-12-11 内蒙古包钢钢联股份有限公司 Wet flue gas desulfurization device and method
CN105056723A (en) * 2015-07-29 2015-11-18 浙江富春江环保热电股份有限公司 Twin-tower type flue gas deep purification device through plasma coupling and sodium based absorption and method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5656046A (en) * 1996-01-16 1997-08-12 The Babcock & Wilcox Company Inlet awning for high velocity absorbers
JP2001120948A (en) * 1999-10-27 2001-05-08 Babcock Hitachi Kk Wet stack gas desulfurizing device
CN1513583A (en) * 2003-08-19 2004-07-21 武汉凯迪电力股份有限公司 Dry process stack gas desulfur reaction tower with variation structure
CN2631619Y (en) * 2003-07-28 2004-08-11 陈昆柏 Vortex fluid-bed waste-gas purifier
CN2843597Y (en) * 2005-11-04 2006-12-06 李仁刚 Fortified wetting limestone smoke desulfurizer
CN1958132A (en) * 2006-09-29 2007-05-09 清华大学 Wet type reaction tower for flue gas desulfurization
CN101402019A (en) * 2008-11-06 2009-04-08 北京博朗环境工程技术股份有限公司 Flue gas desulfurization technique of return current circulating fluidized bed in flow equalizing field
CN201719970U (en) * 2010-05-10 2011-01-26 上海电气石川岛电站环保工程有限公司 Wet flue gas desulfurization tower device with partition board for air distribution

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5656046A (en) * 1996-01-16 1997-08-12 The Babcock & Wilcox Company Inlet awning for high velocity absorbers
JP2001120948A (en) * 1999-10-27 2001-05-08 Babcock Hitachi Kk Wet stack gas desulfurizing device
CN2631619Y (en) * 2003-07-28 2004-08-11 陈昆柏 Vortex fluid-bed waste-gas purifier
CN1513583A (en) * 2003-08-19 2004-07-21 武汉凯迪电力股份有限公司 Dry process stack gas desulfur reaction tower with variation structure
CN2843597Y (en) * 2005-11-04 2006-12-06 李仁刚 Fortified wetting limestone smoke desulfurizer
CN1958132A (en) * 2006-09-29 2007-05-09 清华大学 Wet type reaction tower for flue gas desulfurization
CN101402019A (en) * 2008-11-06 2009-04-08 北京博朗环境工程技术股份有限公司 Flue gas desulfurization technique of return current circulating fluidized bed in flow equalizing field
CN201719970U (en) * 2010-05-10 2011-01-26 上海电气石川岛电站环保工程有限公司 Wet flue gas desulfurization tower device with partition board for air distribution

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102512943A (en) * 2011-11-29 2012-06-27 南京龙玖环境工程有限公司 Smoke desulfurization tower with smashing device
CN102512943B (en) * 2011-11-29 2014-08-06 南京龙玖环境工程有限公司 Smoke desulfurization tower with smashing device
CN102941011A (en) * 2012-11-26 2013-02-27 广东依科电力技术有限公司 Spray desulfurizer and working method thereof
CN103182242A (en) * 2012-11-26 2013-07-03 广东依科电力技术有限公司 Spray tower for desulfurization project
CN103432893A (en) * 2013-08-15 2013-12-11 内蒙古包钢钢联股份有限公司 Wet flue gas desulfurization device and method
CN105056723A (en) * 2015-07-29 2015-11-18 浙江富春江环保热电股份有限公司 Twin-tower type flue gas deep purification device through plasma coupling and sodium based absorption and method thereof
CN105056723B (en) * 2015-07-29 2017-04-12 浙江富春江环保热电股份有限公司 Twin-tower type flue gas deep purification device through plasma coupling and sodium based absorption and method thereof

Similar Documents

Publication Publication Date Title
CN101422691B (en) Multi-pollutant removing technique and device of fuel coal smoke
CN203507793U (en) Device for simultaneously removing sulfur dioxide and nitrogen oxide from coke oven flue gas
CN102974185B (en) Modularized integrated smoke purification system and method for removing plurality of pollutants
CN200998639Y (en) Concentrated crystallization and absorbed oxidation combined type ammonia process desulfuration tower
JP6240571B2 (en) Wet scrubber nozzle system and method used to purify process gas
US5595713A (en) Hydrogen peroxide for flue gas desulfurization
CN100496672C (en) Wet flue gas desulfurizing and hydrargyrum-removing technology based on two-stage oxidation reaction and system thereof
CN105056749A (en) System and method for removing nitric oxides and sulfur oxides in flue gas simultaneously
CN202460402U (en) Lime kiln gas purification tower
WO2016011681A1 (en) Equipment and method for circulating fluidized bed semidry simultaneous desulfurization and denitration of sintering flue gas
CN103316553B (en) Efficient wet-type variable flow fog-spraying sprinkling dust-removing purification device
CN202478804U (en) Sintering machine flue gas desulphurization denitration device
US9895657B2 (en) High-efficiency method for removing sulfur and mercury of coal-fired flue gas, and apparatus thereof
CN101053747A (en) Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof
CN102179146B (en) Smoke desulfuration and denitration system absorbed by dielectric barrier discharge combined lye and process thereof
CN201380039Y (en) Double-tower flue gas desulphurization device
CN101934191A (en) Method for desulfurizing and denitrating smoke simultaneously through ammonia method
CN101496986B (en) Method for simultaneously removing PM2.5 granules, SO2 and NOx from flue gas and recycling by-product
JP2015020169A5 (en)
CN103230723B (en) Annular sectional cross-flow fume cleaning adsorption tower
CN203764106U (en) Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption
CN201880482U (en) Stepped spray tower for desulfurization by ammonia method
CN103752164B (en) Limestone-gypsum wet flue gas desulfurization device
CN203447967U (en) Combined smoke desulfuration, denitration and demercuration device of industrial boiler
CN103768908B (en) What a kind of wet type integrated desulfurizing denitration demercuration took off PM2.5 removes tower and technique

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20101020

C02 Deemed withdrawal of patent application after publication (patent law 2001)