CN204768208U - Flue gas to chain boiler carries out SOx/NOx control integration system - Google Patents
Flue gas to chain boiler carries out SOx/NOx control integration system Download PDFInfo
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- CN204768208U CN204768208U CN201520066747.7U CN201520066747U CN204768208U CN 204768208 U CN204768208 U CN 204768208U CN 201520066747 U CN201520066747 U CN 201520066747U CN 204768208 U CN204768208 U CN 204768208U
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- denitration
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- boiler
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Abstract
The utility model provides a flue gas to chain boiler carries out SOx/NOx control integration system includes SOx/NOx control device, ozone denitration equipment, oxidant supply equipment etc. In advance. The SOx/NOx control device has the flue gas inlet who connects the boiler and discharge fume and manage, and the interval is equipped with desulfurization clean room, denitration room and fume emission room in its body, ozone denitration equipment in advance includes ozone generator and the flash mixed filling device that has filling pipe etc. And the filling pipe being installed in order to provide ozone on the pipe is discharged fume to the boiler, oxidant supply equipment includes oxidant storage tank and a plurality of atomizing spray gun, and the atomizing spray gun is installed in the denitration indoorly. Use the utility model discloses handle the back to the boiler flue gas, the dust collection efficiency 96-99%, desulfurization efficiency 96-98% and denitration efficiency 75-85%. Based on ozone and the different response characteristic of hydrogen peroxide solution, provided to carry out reasonable transformation to the equipment of current gas cleaning system, just can obtain unexpected effect. The utility model discloses a bodyization system uses the consumption of ozone and hydrogen peroxide solution few, but greatly reduced denitration cost.
Description
Technical field
The utility model relates to a kind of boiler desulfurization dust arrester and Denitration in Boiler device, more particularly, is about a kind of flue gas to chain-grate boiler carries out desulfurization and denitrification integral system.
Background technology
We are engaged in the desulfurization of boiler smoke and the research and extension of denitrification apparatus always for many years, achieved at first at home in 1999 and carry out desulfurization and dedusting by the flue gas of FGD by spraying mist equipment to Industrial Boiler and various kiln, big-and-middle shape dust, particle and SO entrained in most of flue gas can be removed
2gas, therefore FGD by spraying mist equipment has the double action of spraying or spray desulfurization and dedusting, obtain very good effect, but because this equipment volume is large and floor space is large, very uneconomic, and the internal placement of existing apparatus also has certain not enough, and manufacturing cost and producing cost are also higher.Afterwards, through to above-mentioned FGD by spraying mist equipment update and perfect, propose a kind of name and be called that " the gas-liquid swirling-flow desulfurizing dust-collector of high-efficient desulfation dust-extraction device " patent No. is ZL200920286787.7, December 30 2009 applying date utility model patent.The desulfurizing dust-collector of this patent is the body being built rectangular cubic repeatedly by masonry, it has spray demist portion, , water smoke separation unit and pond portion: spray demist portion is formed by the be adjacently located on body inwall side first and second perpendicular rooms and is communicated with by their lower openings, the upper end of the first perpendicular room has the air inlet connecting external feed stream pipe, wall is provided with two-layer spray swirling flow layer, each spray swirling flow layer is provided with one or more nozzles and one or more overflowing boards by feed liquid pipeline, second perpendicular room wall is provided with one deck spraying layer, this spray swirling flow layer is provided with one or more nozzles by feed liquid pipeline, described overflowing board is motorless swirling flow blower fan, be arranged on below each nozzle spraying swirling flow layer, described spray demist portion arranges the common pond portion storing water at the connection position of opening bottom the first and second perpendicular rooms, fume emission portion is positioned at the opposite side of the relative body inwall in spray demist portion and adjacent by the first interior wall, and its upper end has the exhaust outlet connecting outer exhaust duct, water smoke separated part spray in body demist portion and fume emission portion left side and by second and the 3rd interior wall with spray demist portion and fume emission portion adjacent.In its course of work, the high pressure that first perpendicular room nozzle ejects forms vapour mist flow containing alkali lye, when flowing through overflowing board, promotes overflowing board and rotates, with the SO in penetration enhancement flue gas with its heat content and make flue dust, flying dust fully with the contacting of alkalies, temperature decline and be beneficial to desulfurization and dedusting.Therefore, have the double action of spraying or spray desulfurization and dedusting, efficiency of dust collection about reaches 99%, and desulfuration efficiency is about 98%.Therefore, we have accumulated certain experience in desulfurating dust-removing equipment manufacture and application aspect, can be user and provide technology that is stronger, reliable desulfurization and dedusting and technology ensuring.
In the denitration of boiler smoke, there are two class ways both at home and abroad at present, one class is that to adopt be separately denitration and the denitrifying dedust apparatus that manufactures and designs, the one associating SCR/SNCR method of denitration of such as US Patent No. 6146606A, specifically disclose carbon fuel and air burn in combustion furnace produce flue gas burnt with pretreatment oil burning boiler by lance ejection alkali lye-urea liquid in the nitrogen oxide NO in discharge flue gas
x, then the nitrogen oxide remained in flue gas utilizes catalyst to carry out catalytic reduction reaction to reach the object of denitrating flue gas and dedusting.In addition, also having a kind of " can select to adopt the method for non-catalytic reduction to the emission of oil burning boiler " as European patent EP 0426978A1 and above-mentioned United States Patent (USP) to remain institute's nitrogen-containing oxide method on processing in flue gas different, is the method that employing reducing agent is directly reduced.This class method of denitration can not meet the occasion of needs desulfurization simultaneously and denitration.Another kind of way is the desulfuring and denitrifying apparatus that desulfurization and denitration are combined and manufactured and designed, such as Shanghai Communications Universitys etc. are positioned Chinese invention patent ZL2010106166787 that on October 22nd, 2010 submits to, that now authorized, name is called, " implementation method based on magnesium-ammonium method synthesis desulfurating denitration and product are reclaimed ", propose and add oxidant in flue gas, with the simultaneously synthesis desulfurating denitration of the magnesia slurry containing urea, oxidant comprises one or more of ozone, hypochlorite or chlorine dioxide.The method is succeeded utilization in the desulphurization denitration of coal-burning boiler, it is the developing direction that smoke comprehensive is administered, but, this patented technology on denitration efficiency less than 70%, not high, for this reason, must seek a kind of have higher denitrification efficiency, structure more advantages of simple, easy to use new remove SO
2and NO
xintegrated Processing Unit and method.
Summary of the invention
The purpose of this utility model is the deficiency overcoming existing flue gas desulfurization and denitrification device, and propose a kind of flue gas to chain-grate boiler and carry out desulfurization and denitrification integral system, its smoke distribution according to combustion coal chain boiler, temperature and flow feature, existing desulfation dust-extraction device is transformed, can be used for noncatalytic reduction and carry out secondary flue gas denitration and by the treatment system with the reliable and high desulphurization denitration governance efficiency of connection and reasonable arrangement, structure of carrying out flue gas desulfurization containing alkali lye.。
The technical scheme realizing above object is to provide a kind of flue gas to chain-grate boiler and carries out desulfurization and denitrification integral system, comprise desulfuring and denitrifying apparatus, desulphurization circulating liquid bath, spray equipment, overflowing board, the pre-denitration device of ozone, oxidant supply arrangement, demister and chimney, wherein, desulfuring and denitrifying apparatus has the gas approach connecting boiler exhaust gas pipe and the purifying smoke be connected after desulfuring and denitrifying apparatus desulphurization denitration are discharged into chimney exhanst gas outlet by tube connector, it is characterized in that: in the desulfuring and denitrifying apparatus body between its gas approach and exhanst gas outlet, be interval with the desulfurization dust chamber being connected to boiler exhaust gas pipe, denitration chamber and two are connected to the fume emission room of chimney connector,
The pre-denitration device of described ozone comprises ozone generator and rapid mixing filling apparatus, wherein, described rapid mixing filling apparatus comprises one or more filler pipe and mixing stirring mechanism, wherein, filler pipe is installed in the inlet that boiler exhaust gas pipe is arranged, described ozone generator is connected by the filler pipe of pipeline with boiler exhaust gas pipe, and with from filler pipe to provide ozone in boiler exhaust gas pipe, described mixing stirring mechanism is installed on the boiler exhaust gas pipe be positioned at above filler pipe;
Desulfuring and denitrifying apparatus builds folded or Plate Welding rear inner lining anti-corrosion material by masonry to form, rectangular cube, and to be separated by interior wall with the sequencing of desulfurization dust chamber, denitration chamber and demist process chamber and be connected by interior wall duct to each other; Described spray equipment and overflowing board are arranged in desulfurization dust chamber;
Described oxidant supply arrangement comprises oxidant storage tank, necessary supply regulates metering unit and multiple atomizing lance, and wherein, described atomizing lance to be arranged in denitration chamber with some row's compositions one group and to connect oxidant storage tank by pipeline;
Described demister is multilayer demist plate, is arranged on fume emission indoor.
Desulfurization and denitrification integral system as previously discussed, wherein, described desulfurization dust chamber is directly communicated with gas approach, one deck or two-layer spray swirling flow layer is provided with in it, each spray swirling flow layer is provided with one or more nozzle be connected with the desulphurization circulating liquid bath pipeline that supply contains alkali lye water and one or more overflowing boards, described overflowing board is motorless swirling flow blower fan, is arranged on below each nozzle spraying swirling flow layer
institutethe the first pond portion storing water is provided with below the connection position stating porthole road within it bottom desulfurization dust chamber.
Desulfurization and denitrification integral system as previously discussed, wherein, the filler pipe of described rapid mixing filling apparatus is the pipe being offered multiple hole by tube wall, described mixing stirring mechanism is unpowered mixer, is to form the blade that the ozone that ejects and flue gas from filling pore carry out mix and blend by when annotating ozone
.
Desulfurization and denitrification integral system as previously discussed, wherein, described atomizing lance forms 1 group by multiple unit atomizing spray gun, has 1-2 layer, is arranged in denitration chamber 2 layers time with upper and lower interval
,
Desulfurization and denitrification integral system as previously discussed, wherein, the pipeline between described ozone generator and rapid mixing filling apparatus is provided with ozone control valve, automatically to regulate ozone injection pressure, concentration and flow velocity.
Desulfurization and denitrification integral system as previously discussed, wherein, the inlet of described boiler exhaust gas pipe and the gas approach air line distance of desulfuring and denitrifying apparatus are 5-10 rice.
Desulfurization and denitrification integral system as previously discussed, wherein, the filler pipe length of described rapid mixing filling apparatus is 2-5 rice.
Desulfurization and denitrification integral system as previously discussed, wherein, is characterized in that: the efficiency of dust collection of described system for desulfuration and denitration remains on 96 ~ 99%, desulfuration efficiency: 96 ~ 98% and denitration efficiency: 75 ~ 85%.
Use described system for desulfuration and denitration of the present utility model to after boiler smoke process, efficiency of dust collection remain on 96 ~ 99%, desulfuration efficiency: 96 ~ 98% and denitration efficiency 75 ~ 85%.For described denitration efficiency, NO
xconcentration of emission is by 500mg/Nm
3be down to 100mg/Nm
3below, the improved discharged nitrous oxides concentration of pulverized-coal fired boiler denitration is made to meet the discharge standard of " fossil-fuel power plant atmospheric pollutant emission standard " (BG13223-2011) emission limits of nitrogen oxides 100 milligrams/cubic metre.
From upper, based on above-mentioned ozone and the different response characteristic of hydrogen peroxide, propose pre-denitration and the desulphurization denitration composite processing system of " hydrogen peroxide oxidation before desulfuring and denitrifying apparatus in ozone pre-oxidation denitration-desulfuring and denitrifying apparatus after desulfurization and dedusting absorbs nitrogen oxides in effluent ", wherein particularly " denitration of flue gas combination oxidative absorption " technique, as long as carry out very reasonable and easy transformation to the equipment of existing flue gas purification system, just beyond thought effect can be obtained, and independence and denitrating technique seem and have more flexibility and on-the-spot adaptability no longer separately to make the desulfurization of boiler and denitration.Meanwhile, this composite processing system use ozone and hydrogen peroxide price not high, consume also few, also can greatly reduce denitration cost.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of desulfuring and denitrifying apparatus in the utility model, also show spray spout, spray nozzle, overflowing board, the demister wherein installed and be connected with the boiler exhaust gas pipe that rapid mixing filling apparatus is housed on its gas approach and the situation of connection of exhanst gas outlet and chimney in figure; ;
Fig. 2 is the layout schematic diagram of desulphurization circulating liquid bath in the utility model, oxidant supply arrangement, the pre-denitration device of ozone and Recycling of oxidize liquid bath;
Fig. 3 is the A-A sectional view of Fig. 1.
Detailed description of the invention
Refer to Fig. 1 and Fig. 3, there is shown the flue gas to chain-grate boiler of the present utility model and carry out desulfurization and denitrification integral system, comprise desulfuring and denitrifying apparatus 1, spray equipment 2, desulphurization circulating liquid bath 3, overflowing board 4, oxidant supply arrangement 5, the pre-denitration device 6 of ozone, demister 7, chimney 8 and Recycling of oxidize liquid bath 10, wherein, desulfuring and denitrifying apparatus 1 to be built repeatedly by masonry or Plate Welding rear inner lining anti-corrosion material forms, rectangular cube, it is outer has the gas approach 19 and the purifying smoke be connected after desulfuring and denitrifying apparatus desulphurization denitration that connect boiler exhaust gas pipe 9 are discharged into chimney 8 exhanst gas outlet 18 by tube connector, and the desulfuring and denitrifying apparatus body between its gas approach 19 and exhanst gas outlet 18 has in it and to be separated by interior wall sequentially and to each other by desulfurization dust chamber 11 that the duct of interior wall is connected, denitration is except fog chamber 12 and two fume emission rooms 13, the sequencing of 14 is by interior wall 111, 121, 131 separate and to each other by the duct 112 of interior wall, 122, 132 are connected.In addition, described gas approach 19 is in desulfurization dust chamber 11 upper end, and described exhanst gas outlet 18 is in top, fume emission room 14,
institutestate bottom desulfurization dust chamber and be provided with divider wall 113 to form the first pond portion 114 and the second pond portion 115 storing water in itself and denitration except the duct 112 of fog chamber 12 interior wall is communicated with below position.
Described spray equipment 2 and overflowing board 4 are arranged in desulfurization dust chamber 11.Best, described spray equipment 2 and overflowing board 4 are provided with two-layer, arrange at certain intervals, and every one deck spray equipment 2 and overflowing board 4 are provided with multiple nozzle of being connected with pipeline containing the desulphurization circulating liquid bath 3 of alkali lye water with supply and one or more overflowing boards 4.Described overflowing board 4 is motorless swirling flow blower fans, is arranged on the below of each spray equipment.Usually, nozzle selection uses WC series hollow cone nozzle, and flow is at 82 ~ 136 liters/min, and pressure clings at 0.7-1.
Described desulphurization circulating liquid bath 3 is as liquid after the supply of the doctor solution of spray equipment 2 and spray desulfurization process, and the accumulator tank namely from the waste water in the first pond portion 114 is positioned near boiler or desulfuring and denitrifying apparatus 1.
Described oxidant supply arrangement 5 comprises oxidant storage tank oxidant storage tank 51, necessary supply regulates metering unit 53 and multiple atomizing lance 52, wherein, oxidant storage tank oxidant storage tank 51 adopts the canned oxidant that market can have been bought, such as, comprise sodium sulfite, sodium chlorite, hydrogen peroxide, sodium peroxydisulfate etc.; Necessary supply regulates metering unit to comprise dosing pump, flowmeter, Pressure gauge and control valve, and described atomizing lance 52, with some row's compositions one group, is arranged on denitration except connecting oxidant storage tank 51 by pipeline in fog chamber 12.Wherein, the concentration of the oxidant that oxidant storage tank oxidant storage tank 51 provides is 8-20%, for weight percent also can be regulated.Described atomizing lance is atomized spray rifle, has oxidant delivery outlet and air-out, and air-out provides the pressure air of 6-8 kg/cm by air compressor machine, is atomized with the oxidant exported by oxidant delivery outlet.In addition, described atomizing lance 52 also can form 1 group by multiple unit spray gun, has 1-2 layer, is arranged on denitration demist indoor 2 layers time with upper and lower interval,
Described demister 7 is multilayer demist plate, is arranged in fume emission room 13, to remove fog after denitration in flue gas and fine particle.
The pre-denitration device 6 of described ozone comprises ozone generator 61, ozone control set for adjusting 63 and rapid mixing filling apparatus 62, wherein, described ozone generator 61 can be selected as model NLO-25K (separate unit ozone generator ozone output 25kg/h, nominal concentrations: 135mg/L), MB-D-K10000(separate unit ozone generator rated output 15000gO
3/ h, ozone concentration 20 ~ 35mg/L), it is connected to the inlet 91 of boiler exhaust gas pipe 9 by pipeline, and described ozone control set for adjusting comprises pressure-reducing valve, pneumatic on-off valve, ozone control valve, pressure and temperature transmitter etc.; Described rapid mixing filling apparatus 62 comprises one or more filler pipe 621 and mixing stirring mechanism 622, wherein, filler pipe 621 is installed in the inlet 91 that boiler exhaust gas pipe 9 is arranged, described ozone generator 61 is connected with the filler pipe 621 of boiler exhaust gas pipe by pipeline, with from filler pipe to provide ozone in boiler exhaust gas pipe, described mixing stirring mechanism 622 is installed on the boiler exhaust gas pipe 9 be positioned at above filler pipe.The filler pipe 621 of described rapid mixing filling apparatus is the pipe being offered multiple hole 6211 by tube wall, described mixing stirring mechanism 622 is unpowered mixer, is that the blade 6221 carrying out mix and blend by the ozone that ejects and flue gas in the hole 6211 of the pipe when annotating ozone is formed.Pipeline between described ozone generator 61 and rapid mixing filling apparatus 62 is provided with ozone control set for adjusting, automatically to regulate ozone injection pressure, concentration and flow velocity.The input pressure of described ozone is 1 kg/cm, and therefore, described rapid mixing filling apparatus 62 needs to adopt jet to inject and jet water conservancy diversion hybrid technology, and to ensure that ozone fully mixes with flue gas, and always mixing resistance controls lower than 10Pa.In the installation of filler pipe 621, the inlet 91 of described boiler exhaust gas pipe 9 is 6-10 rice with gas approach 19 air line distance of desulfuring and denitrifying apparatus 1.Filler pipe 621 length of described rapid mixing filling apparatus is 2-6 rice.
Recycling of oxidize liquid bath 10 is for storing oxidant in oxidant storage tank by the liquid after atomizing lance 52 denitration process, namely flowing to the recovery of the useless oxidant in the second pond portion 115, with by its treated recycling.
The efficiency of dust collection of described system for desulfuration and denitration of the present utility model remains on 96 ~ 99%, desulfuration efficiency: 96 ~ 98% and denitration efficiency: 75 ~ 85%.
Flue gas to combustion coal chain boiler of the present utility model carry out pre-denitration and desulphurization denitration composite processing system be applied in 75 tons/time pulverized-coal fired boiler, the denitration of flue gas and desulfurization processing procedure:
1, pre-denitration: in the boiler exhaust gas pipe 9 above desulfuring and denitrifying apparatus 1, the temperature of flue gas is 160 DEG C (the boiler exhaust gas inner tube smoke temperature of usual above-mentioned boiler is 120-180 DEG C), the ozone that ozone generator 61 produces to be delivered to the filler pipe 621 of rapid mixing filling apparatus 62 through piping and also can be affected the size of conveying capacity by its quantity of hole 6211(from inlet 91) with ozone concentration 30mg/L, flow and the discharge pressure of setting are that 1 kg/cm ejects, only need ensure that the time of contact of flue gas ozone and flue gas before entering desulfuring and denitrifying apparatus 1 is at 1-3s.As for the dosage of ozone, can by with NO
xmol ratio in 0.3-0.8 range regulation, specific implementation process also will look NO in flue gas
xactual concentrations and set denitration efficiency and determining.
Ozone squit hole 6211 also impacts blade 6221 and makes it continue to rotate, and accelerates fully to be uniformly mixed with flue gas, realizes NO to NO
2conversion.The reaction related generally to is as follows:
NO+O
3→NO
2+O
2
NO
2+O
3→NO
3+O
2
NO
3+NO
2→N
2O
5
NO+O+M→NO
2+M
NO
2+O→NO
3
Here, the ozone design inputted at inlet 91 adopts jet to inject and water conservancy diversion hybrid technology, on guarantee ozone and the well-mixed basis of flue gas, reduces its gas-flow resistance as far as possible, and always mixing resistance hole controls lower than 10Pa for this reason.
2, desulfurization and dedusting in desulfuring and denitrifying apparatus: the flue gas through pre-denitration enters desulfurization dust chamber 11 from gas approach 19 from top to down, first flue gas is subject to spraying containing alkali lye water (liquid that alkali lye mixes with water) of nozzle ejection, form vapour mist flow, when it flows through overflowing board, promotion overflowing board rotates, flue dust and flying dust is made to be in swirling flow, fully with the contact of alkalies, and injection and swirling flow effect under with high-speed punching to pond portion, make to carry out water-bath in flue gas water, evoke the eddy current of water in the portion of pond, by SO in flue gas
2again by alkali liquor absorption, reaction, and flying dust grit soaks, in molten heavy water.In the process, flue gas and alkaline reaction are except absorbing SO
2with outside flue dust, also absorb its heat content in large quantities, its temperature is reduced significantly, temperature is from entering 140 of gas approach 19
oabout C drops to 60 ~ 80
oc.This creates good condition for follow-up denitration demist.
3, denitration demist in desulfuring and denitrifying apparatus: through the process of above processing procedure 2, flue gas enters denitration from bottom to up except fog chamber 12 from the duct 112 of the interior wall 111 of desulfurization dust chamber 11 bottom, oxidizing agent solution containing about 15% is sprayed from spray gun 52, in denitration except forming fog layer in fog chamber 12 and efficient absorption being carried out to nitrogen oxide, meanwhile oxidant is also to sulfur dioxide effect remaining after desulfurization dust chamber 11 desulfurization and dedusting process, can further improve desulfuration efficiency, therefore the denitration utilization rate of oxidant can be significantly improved.Its reaction is as follows:
NO+H
2o
2(liquid phase) → NO
2+ H
2o
2NO
2+ H
2o
2(liquid phase) → 2HNO
3
2NO+H
2o
2(liquid phase) → 2HNO
2
SO
2+ H
2o
2(liquid phase) → H
2sO
4
In denitration except in fog chamber 13, the flue gas after oxidizing agent solution process will by being arranged in the multilayer demist plate of the demister 7 above spray gun 52 to remove flue gas steam, fog and tiny micronic dust.
4, fume emission in desulfuring and denitrifying apparatus: after the denitration demist of above processing procedure 3, flue gas upwards flows to fume emission room 13 through the duct 122 on interior wall 121 top, steam is condensed further, processed flue gas makes flowing velocity suitably reduce because of expansion, finally from the exhanst gas outlet 18 being positioned at this bottom, room, treated purifying smoke is discharged into outer exhaust duct until chimney 8.
After whole processing procedure completes, through detecting, efficiency of dust collection is 99%, and desulfurized effect is except usual recirculated water alkalescence is containing alkali lye PH
8.5, have the booster action of oxidant concurrently and improve, desulfuration efficiency 98%, denitration efficiency 82%.In addition, also because desulfuring and denitrifying apparatus is not perishable, longer service life.
Claims (7)
1. the flue gas to chain-grate boiler carries out desulfurization and denitrification integral system, comprise desulfuring and denitrifying apparatus, desulphurization circulating liquid bath, spray equipment, overflowing board, the pre-denitration device of ozone, oxidant supply arrangement, demister and chimney, wherein, desulfuring and denitrifying apparatus has the gas approach connecting boiler exhaust gas pipe and the purifying smoke be connected after desulfuring and denitrifying apparatus desulphurization denitration are discharged into chimney exhanst gas outlet by tube connector, it is characterized in that: in the desulfuring and denitrifying apparatus body between its gas approach and exhanst gas outlet, be interval with the desulfurization dust chamber being connected to boiler exhaust gas pipe, denitration chamber and two are connected to the fume emission room of chimney connector,
The pre-denitration device of described ozone comprises ozone generator and rapid mixing filling apparatus, wherein, described rapid mixing filling apparatus comprises one or more filler pipe and mixing stirring mechanism, wherein, filler pipe is installed in the inlet that boiler exhaust gas pipe is arranged, described ozone generator is connected by the filler pipe of pipeline with boiler exhaust gas pipe, and with from filler pipe to provide ozone in boiler exhaust gas pipe, described mixing stirring mechanism is installed on the boiler exhaust gas pipe be positioned at above filler pipe;
Desulfuring and denitrifying apparatus builds folded or Plate Welding rear inner lining anti-corrosion material by masonry to form, rectangular cube, and to be separated by interior wall with the sequencing of desulfurization dust chamber, denitration chamber and demist process chamber and be connected by interior wall duct to each other; Described spray equipment and overflowing board are arranged in desulfurization dust chamber;
Described oxidant supply arrangement comprises oxidant storage tank, necessary supply regulates metering unit and multiple atomizing lance, and wherein, described atomizing lance to be arranged in denitration chamber with some row's compositions one group and to connect oxidant storage tank by pipeline;
Described demister is multilayer demist plate, is arranged on fume emission indoor.
2. desulfurization and denitrification integral system as claimed in claim 1, it is characterized in that: described desulfurization dust chamber is directly communicated with gas approach, one deck or two-layer spray swirling flow layer is provided with in it, each spray swirling flow layer is provided with one or more nozzle be connected with the desulphurization circulating liquid bath pipeline that supply contains alkali lye water and one or more overflowing boards, described overflowing board is motorless swirling flow blower fan, be arranged on below each nozzle spraying swirling flow layer
institutethe the first pond portion storing water is provided with below the connection position stating porthole road within it bottom desulfurization dust chamber.
3. desulfurization and denitrification integral system as claimed in claim 1, it is characterized in that: the filler pipe of described rapid mixing filling apparatus is the pipe being offered multiple hole by tube wall, described mixing stirring mechanism is unpowered mixer, is to form the blade that the ozone that ejects and flue gas from filling pore carry out mix and blend by when annotating ozone
.
4. desulfurization and denitrification integral system as claimed in claim 1, is characterized in that: described atomizing lance forms 1 group by multiple unit atomizing spray gun, has 1-2 layer, is arranged in denitration chamber 2 layers time with upper and lower interval
.
5. desulfurization and denitrification integral system as claimed in claim 1, is characterized in that: the pipeline between described ozone generator and rapid mixing filling apparatus is provided with ozone control valve, automatically to regulate ozone injection pressure, concentration and flow velocity.
6. desulfurization and denitrification integral system as claimed in claim 1, is characterized in that: the inlet of described boiler exhaust gas pipe and the gas approach air line distance of desulfuring and denitrifying apparatus are 5-10 rice.
7. desulfurization and denitrification integral system as claimed in claim 1, is characterized in that: the filler pipe length of described rapid mixing filling apparatus is 2-5 rice.
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|---|---|---|---|
| CN201520066747.7U CN204768208U (en) | 2015-01-30 | 2015-01-30 | Flue gas to chain boiler carries out SOx/NOx control integration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066747.7U CN204768208U (en) | 2015-01-30 | 2015-01-30 | Flue gas to chain boiler carries out SOx/NOx control integration system |
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ID=54508340
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536445A (en) * | 2016-02-24 | 2016-05-04 | 长沙市望城区湘磊环境工程公司 | Desulfurizing and dedusting device |
| CN105983311A (en) * | 2015-01-30 | 2016-10-05 | 邱吉康 | Desulfurization and denitrification integrated system for flue gas of chain-grate boiler |
| CN106881012A (en) * | 2017-03-16 | 2017-06-23 | 黄胜建 | A kind of coking furnace desulfurization and denitrification integral system |
| CN107854988A (en) * | 2017-12-16 | 2018-03-30 | 常熟联邦化工股份有限公司 | A kind of coal burning heat-conducting oil furnace exhaust gas automatic processing device |
-
2015
- 2015-01-30 CN CN201520066747.7U patent/CN204768208U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983311A (en) * | 2015-01-30 | 2016-10-05 | 邱吉康 | Desulfurization and denitrification integrated system for flue gas of chain-grate boiler |
| CN105536445A (en) * | 2016-02-24 | 2016-05-04 | 长沙市望城区湘磊环境工程公司 | Desulfurizing and dedusting device |
| CN106881012A (en) * | 2017-03-16 | 2017-06-23 | 黄胜建 | A kind of coking furnace desulfurization and denitrification integral system |
| CN107854988A (en) * | 2017-12-16 | 2018-03-30 | 常熟联邦化工股份有限公司 | A kind of coal burning heat-conducting oil furnace exhaust gas automatic processing device |
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Granted publication date: 20151118 Termination date: 20190130 |