CN106268231A - A kind of dust-removal and desulfurizing denitrification integrated device - Google Patents
A kind of dust-removal and desulfurizing denitrification integrated device Download PDFInfo
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- CN106268231A CN106268231A CN201610740720.0A CN201610740720A CN106268231A CN 106268231 A CN106268231 A CN 106268231A CN 201610740720 A CN201610740720 A CN 201610740720A CN 106268231 A CN106268231 A CN 106268231A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
A kind of dust-removal and desulfurizing denitrification integrated device, belongs to technical field of air pollution control.Point smoke-box and liquid chamber in dust-removal and desulfurizing denitration reaction device, gas approach pipeline communicates with smoke-box, one-level spray equipment and gaseous oxidizing agent jetting device is arranged in gas approach pipeline, the smoke-intake pipe communicated with smoke-box it is provided with in liquid chamber, overflow pipe communicates with liquid chamber, exhanst gas outlet pipeline communicates with liquid chamber and cyclone separator, two grades of spray equipments it are disposed with in exhanst gas outlet pipeline, the reservoir top of sub-reserving liquid tank is fixed with desulfurizing agent's feeding system, reservoir internal upper part in sub-reserving liquid tank is equipped with motor stirrer, the reservoir that liquid outlet conduit is minimum with height connects, two liquid outlet conduit parallel connection ports are by connecting line and, the port in parallel connection of two grades of spray pipings, overflow pipe is connected with sub-reserving liquid tank by reflux line, cyclone separator connects with reflux line.Present invention dedusting in running, desulfurization and denitration efficiency respectively up to 95%, 95% 99% and more than 80%.
Description
Technical field
The present invention relates to a kind of smoke eliminator, particularly relate to a kind of dedusting and denitration integrated device, belong to
Technical field of air pollution control.
Background technology
The Fossil fuels such as coal, as the main consumption fuel of boiler, cause the flue dust in combustion product gases, SO2、NOXAverage annual row
Remaining high for a long time, become the primary pollution source of air, haze weather takes place frequently.Current domestic more than 600MW electricity generation boiler
Dedusting, desulfurization and denitration technology have been achieved with excellence achievement, pollutant emission has reached minimum discharge, i.e. NOx, SO2, cigarette
Dirt discharge reaches 50,35,5mg/m3, it being called for short 50355, national requirements to the year two thousand twenty, the electricity generation boiler of more than 300MW all to reach
To minimum discharge.Along with environmental conservation deepens continuously, to flue dust, SO2、NOXThe control stress point of discharge starts to turn to non-electrical Lixing
Industry, has put into effect corresponding discharge mark for the industry such as heating boiler, Industrial Boiler, waste incineration, metallurgy, chemical industry and new forms of energy
Accurate.
According to the rules, the boiler of more than 20t/h flue dust to be realized, SO2、NOXOn-line monitoring, this be accomplished by existing and
The discharge of infant industry boiler smoke is controlled.Current domestic and international widely used desulphurization and denitration technology is that wet flue gas takes off
Sulfur and SCR or SNCR denitration technology.SCR denitration efficiency is high, but it is high to there is operating cost；Then there is boiler height underload temperature in SNCR
Degree change is big, denitration efficiency is low, and can not meet discharging standards during underload.Industrial Boiler mostly joins multi-tube dusting at present
Device, dust emission is the most up to standard.Therefore, investment in research and development province, resource consumption is few, operating cost is low flue-gas dust-removing and desulfurization denitration one
Change technology, has great significance to reducing Industrial Boiler pollutant emission.
Current domestic large-scale electricity generation boiler mainly uses low nitrogen burning+SCR to control NOx emission less than 50mg/m3, use first
The wet process of FGD entered controls SO2Less than 35mg/m3, use bag-type dust+wet desulphurization co-controlling soot emissions to be less than
5mg/m3.These methods can apply to Industrial Boiler, but cost of investment is high, operating cost high, floor space is big so that these
Technology is difficult to popularization and application on Industrial Boiler.Therefore, it is badly in need of providing a kind of and is applicable to the collection dedusting of Industrial Boiler, desulfurization, de-
Nitre, and reduced investment, operating cost is low, floor space is little, fume emission is up to standard integrated apparatus.
Summary of the invention
The invention aims to overcome defect and the deficiency of above-mentioned prior art, propose a kind of dust-removal and desulfurizing denitration one
Body gasifying device.
Realizing above-mentioned purpose, the technical scheme that the present invention takes has three kinds, as follows:
Scheme one: a kind of dedusting and denitration integrated device, including dust-removal and desulfurizing denitration reaction device, reserving liquid tank, whirlwind
Separator, gas approach pipeline, one-level spray equipment, gaseous oxidizing agent jetting device, overflow pipe, water-level monitoring window, blow-off pipe,
Exhanst gas outlet pipeline, two grades of spray equipments, one-level spray piping, two grades of spray pipings, reflux line, pump, water filling port, connecting tubes
Road, drainage pipeline, many smoke-intake pipes, two desulfurizing agent's feeding systems, two liquid outlet conduit, two discharging of waste liquid pipelines and
Two motor stirrers；
From top to bottom it is divided into smoke-box and liquid chamber, described smoke-box and liquid chamber logical in described dust-removal and desulfurizing denitration reaction device
Crossing dividing plate to separate, described gas approach pipeline and overflow pipe are arranged at the outside of dust-removal and desulfurizing denitration reaction device, cigarette
One end of gas inlet pipeline is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device and communicates with smoke-box, described flue gas inlet tube
From top to bottom it is sequentially arranged one-level spray equipment and gaseous oxidizing agent jetting device in road, vertically arranges in described liquid chamber
Having many smoke-intake pipes, the upper end of many described smoke-intake pipes is affixed with dividing plate, and many smoke-intake pipes communicate with smoke-box, dust-removal and desulfurizing
It is provided with water-level monitoring window, described overflow pipe one end and dust-removal and desulfurizing with liquid chamber corresponding section on denitration reaction device sidewall
The sidewall of denitration reaction device is affixed and communicates with liquid chamber, and the bottom of liquid chamber is funnel shaped, the bottom of liquid chamber and row
The connection of dirty pipe one end；Described exhanst gas outlet pipeline one end is arranged on smoke-box through the upper cover plate of dust-removal and desulfurizing denitration reaction device
Interior and affixed with dividing plate, exhanst gas outlet pipeline communicates with liquid chamber, is disposed with two grades of spray equipments, flue gas in exhanst gas outlet pipeline
The outlet conduit other end is flue gas accelerating sections, and the flue gas accelerating sections end of exhanst gas outlet pipeline is affixed with cyclone separator sidewall,
Exhanst gas outlet pipeline communicates with cyclone separator；Described one-level spray equipment connects with one-level spray piping one end, described
Two grades of spray equipments and two grades of spray piping one end connections, one-level spray piping and two grades of spray piping other ends are in parallel；
Described reserving liquid tank includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs, the three of every sub-reserving liquid tank
Individual reservoir is the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical, every sub-reserving liquid tank
In be positioned at the top, reservoir lateral wall of centre and be respectively and fixedly provided with a desulfurizing agent's feeding system, every sub-reserving liquid tank is positioned at centre
Reservoir in top be respectively arranged with motor stirrer, three reservoir bottoms of every sub-reserving liquid tank are infundibulate, each
Three reservoir bottoms of sub-reserving liquid tank all with a discharging of waste liquid pipeline communication, two described liquid outlet conduit one end with
The lateral wall of two sub-reserving liquid tanks is affixed, and the storage that each liquid outlet conduit one end is minimum with corresponding sub-reserving liquid tank camber
Liquid bath connects, and two liquid outlet conduit other ends are in parallel, the port in parallel of two liquid outlet conduit by connecting line with
The port in parallel connection of one-level spray piping and two grades of spray pipings, described connecting line is provided with pump, the side of reserving liquid tank
It is positioned at the shortest reservoir on wall and is arranged over water filling port, the overflow pipe other end two ports of export by reflux line
Connecting with two sub-reserving liquid tanks, the lower end of cyclone separator is connected with reflux line by drainage pipeline.
Scheme two: a kind of dedusting and denitration integrated device, including dust-removal and desulfurizing denitration reaction device, reserving liquid tank,
Cyclone separator, gas approach pipeline, one-level spray equipment, overflow pipe, water-level monitoring window, blow-off pipe, exhanst gas outlet pipeline, two
Level spray equipment, one-level spray piping, two grades of spray pipings, reflux line, pump, water filling port, connecting line, connecting pipeline, liquid
Phase oxidation agent storage device, drainage pipeline, many smoke-intake pipes, two desulfurizing agent's feeding systems, two liquid outlet conduit, two
Discharging of waste liquid pipeline and two motor stirrers；
From top to bottom it is divided into smoke-box and liquid chamber, described smoke-box and liquid chamber logical in described dust-removal and desulfurizing denitration reaction device
Crossing dividing plate to separate, described gas approach pipeline and overflow pipe are arranged at the outside of dust-removal and desulfurizing denitration reaction device, cigarette
One end of gas inlet pipeline is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device and communicates with smoke-box, described flue gas inlet tube
From top to bottom it is sequentially arranged one-level spray equipment in road, in described liquid chamber, is vertically provided with many smoke-intake pipes, described
The upper end of many smoke-intake pipes is affixed with dividing plate, and many smoke-intake pipes communicate with smoke-box, on dust-removal and desulfurizing denitration reaction device sidewall
With the sidewall that liquid chamber corresponding section is provided with water-level monitoring window, described overflow pipe one end and dust-removal and desulfurizing denitration reaction device
Affixed and communicate with liquid chamber, the bottom of liquid chamber is funnel shaped, and the bottom of liquid chamber connects with blow-off pipe one end；Described
In exhanst gas outlet pipeline one end is arranged on smoke-box through the upper cover plate of dust-removal and desulfurizing denitration reaction device and affixed with dividing plate, flue gas
Outlet conduit communicates with liquid chamber, is disposed with two grades of spray equipments in exhanst gas outlet pipeline, and the exhanst gas outlet pipeline other end is cigarette
Gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline is affixed with cyclone separator sidewall, exhanst gas outlet pipeline and whirlwind
Separator communicates；Described one-level spray equipment connects with one-level spray piping one end, two grades of described spray equipments and two grades
Spray piping one end connects, and one-level spray piping and two grades of spray piping other ends are in parallel；
Described reserving liquid tank includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs, the three of every sub-reserving liquid tank
Individual reservoir is the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical, every sub-reserving liquid tank
In be positioned at the top, reservoir lateral wall of centre and be respectively and fixedly provided with a desulfurizing agent's feeding system, every sub-reserving liquid tank is positioned at centre
Reservoir in top be respectively arranged with motor stirrer, three reservoir bottoms of every sub-reserving liquid tank are infundibulate, each
Three reservoir bottoms of sub-reserving liquid tank all with a discharging of waste liquid pipeline communication, two described liquid outlet conduit one end with
The lateral wall of two sub-reserving liquid tanks is affixed, and the storage that each liquid outlet conduit one end is minimum with corresponding sub-reserving liquid tank camber
Liquid bath connects, and two liquid outlet conduit other ends are in parallel, the port in parallel of two liquid outlet conduit by connecting line with
The port in parallel connection of one-level spray piping and two grades of spray pipings, described connecting line is provided with pump, and connecting line leads to
Cross connecting pipeline to connect with liquid phase oxidation agent storage device, the sidewall of reserving liquid tank is positioned at the shortest reservoir and is arranged over
Water filling port, the overflow pipe other end is connected by two ports of export and two sub-reserving liquid tanks of reflux line, cyclone separator
Lower end is connected with reflux line by drainage pipeline.
Scheme three: a kind of dedusting and denitration integrated device, including dust-removal and desulfurizing denitration reaction device, reserving liquid tank,
Cyclone separator, gas approach pipeline, one-level spray equipment, many smoke-intake pipes, overflow pipe, water-level monitoring window, blow-off pipe, flue gases
Outlet conduit, two grades of spray equipments, one-level spray piping, two grades of spray pipings, reflux line, pump, water filling port, connecting line,
Drainage pipeline, two desulfurizing agent's feeding systems, two phase oxidative agent feeding systems, two liquid outlet conduit, two waste liquids
Discharge tube and two motor stirrers；
From top to bottom it is divided into smoke-box and liquid chamber, described smoke-box and liquid chamber logical in described dust-removal and desulfurizing denitration reaction device
Crossing dividing plate to separate, described gas approach pipeline and overflow pipe are arranged at the outside of dust-removal and desulfurizing denitration reaction device, cigarette
One end of gas inlet pipeline is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device and communicates with smoke-box, described flue gas inlet tube
From top to bottom it is sequentially arranged one-level spray equipment in road, in described liquid chamber, is vertically provided with many smoke-intake pipes, described
The upper end of many smoke-intake pipes is affixed with dividing plate, and many smoke-intake pipes communicate with smoke-box, on dust-removal and desulfurizing denitration reaction device sidewall
With the sidewall that liquid chamber corresponding section is provided with water-level monitoring window, described overflow pipe one end and dust-removal and desulfurizing denitration reaction device
Affixed and communicate with liquid chamber, the bottom of liquid chamber is funnel shaped, and the bottom of liquid chamber connects with blow-off pipe one end；Described
In exhanst gas outlet pipeline one end is arranged on smoke-box through the upper cover plate of dust-removal and desulfurizing denitration reaction device and affixed with dividing plate, flue gas
Outlet conduit communicates with liquid chamber, is disposed with two grades of spray equipments in exhanst gas outlet pipeline, and the exhanst gas outlet pipeline other end is cigarette
Gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline is affixed with cyclone separator sidewall, exhanst gas outlet pipeline and whirlwind
Separator communicates；Described one-level spray equipment connects with one-level spray piping one end, two grades of described spray equipments and two grades
Spray piping one end connects, and one-level spray piping and two grades of spray piping other ends are in parallel；
Described reserving liquid tank includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs, the three of every sub-reserving liquid tank
Individual reservoir is the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical, every sub-reserving liquid tank
In be positioned at the top, reservoir lateral wall of centre and be respectively and fixedly provided with a desulfurizing agent's feeding system and a phase oxidative agent feed system
System, the top of the reservoir being positioned at centre in every sub-reserving liquid tank is respectively arranged with motor stirrer, three of every sub-reserving liquid tank
Reservoir bottom is infundibulate, three reservoir bottoms of every sub-reserving liquid tank all with a discharging of waste liquid pipeline communication, institute
Two the liquid outlet conduit one end stated are affixed with the lateral wall of two sub-reserving liquid tanks, and each liquid outlet conduit one end is with right
The reservoir connection that the sub-reserving liquid tank camber answered is minimum, two liquid outlet conduit other ends are in parallel, two liquid outlet tubes
The port in parallel in road is connected with the port in parallel of one-level spray piping and two grades of spray pipings by connecting line, described connection
Pipeline is provided with pump, the sidewall of reserving liquid tank is positioned at the shortest reservoir and is arranged over water filling port, the overflow pipe other end
Being connected by the two of reflux line ports of export and two sub-reserving liquid tanks, drainage pipeline and backflow are passed through in the lower end of cyclone separator
Pipeline communication.
The present invention provides the benefit that relative to prior art:
1) realize synchronized dust removal and desulphurization denitration, eliminate and be separately provided Benitration reactor, simplify auxiliary equipment facility, enter one
Step reduces investment and operating cost.
2) in dust-removal and desulfurizing denitration reaction device, flue gas is passed directly into inside reaction liquid, forms substantial amounts of minute bubbles,
Increase the contact area of flue gas and liquid and enhance mass transfer, thus being greatly improved dust-removal and desulfurizing denitration efficiency, solving
In device, flue gas quickly escaped in the past, and the problems such as denitrification efficiency is low solve dust removal problem simultaneously.
3) two-stage spray equipment be arranged on reaction liquid and on the basis of flue gas is fully contacted, in advance and again with flue gas
Contact and react, further increasing denitrification efficiency.
4) efficient cyclone separator gets off taking dirt drop separation in flue gas, it is ensured that splendid dust removing effects and reactant liquor
Recycle, and prevent the generation of " gypsum rain ".
5) this dust-removal and desulfurizing denitration reaction device is to flue-gas temperature not requirement, to load not requirement, has moderate
Resistance.And selected reactant has multiformity, it is ensured that the property of many uses of this device.
6) power saving；Prick due to flue gas inside reaction liquid, heave a large amount of minute bubbles, add time of contact and contact surface
Long-pending, response speed is greatly improved, therefore, the flow of circulating pump is greatly reduced, only the 30% of conventional wet lay desulfurization, advantage of economizing on electricity
Substantially.
In sum, apparatus of the present invention solve the escaping of ammonia in conventional denitration, and the problem such as load, temperature be improper,
Improve denitrification efficiency, in running, desulfuration efficiency and denitration efficiency are respectively up to 95%-99% and more than 80%, make
Obtain SO2≤50-100mg/m3, NOx≤100mg/m3；And can synchronize to realize high-effective dust-removing, efficiency of dust collection is more than 95%, to front
Put sack cleaner, final dust concentration≤5mg/m3；To preposition electrostatic precipitator, final dust concentration≤10mg/m3；To front
Put multi-tube dusting, grate furnace dust concentration≤30mg/m3。
Accompanying drawing explanation
Fig. 1 is the front view of the wet dedusting desulfurization denitrification integrated device of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A-A profile of Fig. 1；
Fig. 4 is the B-B profile of Fig. 1.
In figure: dust-removal and desulfurizing denitration reaction device 1, smoke-box 1-1, liquid chamber 1-2, dividing plate 1-3, reserving liquid tank 2, reservoir 2-
1, cyclone separator 3, gas approach pipeline 4, one-level spray equipment 5, gaseous oxidizing agent jetting device 6, smoke-intake pipe 7, overflow pipe
Road 8, water-level monitoring window 9, blow-off pipe 10,11, two grades of spray equipments 12 of exhanst gas outlet pipeline, one-level spray piping 13, two grades spray
Pipeline 14, control valve 5 15, control valve 6 16, chimney 17, reflux line 18, desulfurizing agent's feeding system 19, phase oxidative agent are given
Material system 20, liquid outlet conduit 21, pump 22, discharging of waste liquid pipeline 23, motor stirrer 24, water filling port 25, Oxygen in Liquid agent
Storage device 26, connecting line 27, drainage pipeline 28, control valve 1, control valve 2 30, control valve 3 31, control valve 4 32,
Connecting pipeline 33.
Detailed description of the invention
Detailed description of the invention one: as shown in Fig. 1 ~ Fig. 4, a kind of dust-removal and desulfurizing denitrification integrated device of present embodiment,
Including dust-removal and desulfurizing denitration reaction device 1, reserving liquid tank 2, cyclone separator 3, gas approach pipeline 4, one-level spray equipment 5, gas
Phase oxidation agent jetting device 6, overflow pipe 8, water-level monitoring window 9, blow-off pipe 10,11, two grades of spray equipments 12 of exhanst gas outlet pipeline,
13, two grades of spray pipings 14 of one-level spray piping, reflux line 18, pump 22, water filling port 25, connecting line 27, drainage pipeline 28,
7, two desulfurizing agent's feeding systems of many smoke-intake pipes, 21, two discharging of waste liquid pipelines 23 of 19, two liquid outlet conduit and two
Motor stirrer 24；
Smoke-box 1-1 and liquid chamber 1-2, described smoke-box 1-1 from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device 1
Being separated by dividing plate 1-3 with liquid chamber 1-2, described gas approach pipeline 4 and overflow pipe 8 are arranged at dust-removal and desulfurizing denitration
The outside of reaction unit 1, the sidewall of one end of gas approach pipeline 4 and dust-removal and desulfurizing denitration reaction device 1 is affixed and and smoke-box
1-1 communicates, and is from top to bottom sequentially arranged one-level spray equipment 5 and gaseous oxidizing agent sprays into dress in described gas approach pipeline 4
The arrival end putting 6(gaseous oxidizing agent jetting device 6 connects oxidant generator), vertically arrange in described liquid chamber 1-2
Having many smoke-intake pipes 7, the upper end of many described smoke-intake pipes 7 is affixed with dividing plate 1-3, and many smoke-intake pipes 7 and smoke-box 1-1 phase
Logical, dust-removal and desulfurizing denitration reaction device 1 sidewall is provided with water-level monitoring window 9, described overflow pipe with liquid chamber 1-2 corresponding section
One end, road 8 is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device 1 and communicates with liquid chamber 1-2, and the bottom of liquid chamber 1-2 is leakage
Bucket shape shape, the bottom of liquid chamber 1-2 connects with blow-off pipe 10 one end；Described exhanst gas outlet pipeline 11 one end passes dust-removal and desulfurizing
It is interior and affixed with dividing plate 1-3 that the upper cover plate of denitration reaction device 1 is arranged on smoke-box 1-1, exhanst gas outlet pipeline 11 and liquid chamber 1-2
Communicating, be disposed with two grades of spray equipments 12 in exhanst gas outlet pipeline 11, exhanst gas outlet pipeline 11 other end is flue gas accelerating sections, cigarette
The flue gas accelerating sections end of gas outlet conduit 11 is affixed with cyclone separator 3 sidewall, exhanst gas outlet pipeline 11 and cyclone separator 3
Communicate；Described one-level spray equipment 5 connects with one-level spray piping 13 one end, described two grades of spray equipments 12 and two grades of sprays
One end, shower pipe road 14 connects, and one-level spray piping 13 and two grades of spray piping 14 other ends are in parallel；
Described reserving liquid tank 2 includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoir 2-1, every sub-reserving liquid tank
Three reservoir 2-1 be the most highly gradually lowered, two described sub-reserving liquid tank physical dimensions are identical, every height
The top, reservoir 2-1 lateral wall being positioned at centre in reserving liquid tank is respectively and fixedly provided with a desulfurizing agent's feeding system 19, every sub-liquid storage
The top of the reservoir 2-1 being positioned at centre in case is respectively arranged with motor stirrer 24, three reservoir 2-1 of every sub-reserving liquid tank
Bottom is infundibulate, and three reservoir 2-1 bottoms of every sub-reserving liquid tank all connect with a discharging of waste liquid pipeline 23, described
Two liquid outlet conduit 21 one end affixed with the lateral wall of two sub-reserving liquid tanks, and each liquid outlet conduit 21 one end with
The reservoir 2-1 connection that corresponding sub-reserving liquid tank camber is minimum, two liquid outlet conduit 21 other ends are in parallel, two liquid
The port in parallel of outlet conduit 21 passes through connecting line 27 and one-level spray piping 13 and the port in parallel of two grades of spray pipings 14
Connection, described connecting line 27 is provided with pump 22, the sidewall of reserving liquid tank 2 is positioned at above the shortest reservoir 2-1
Being provided with water filling port 25, overflow pipe 8 other end is connected by two ports of export and two sub-reserving liquid tanks of reflux line 18, whirlwind
The lower end of separator 3 is connected with reflux line 18 by drainage pipeline 28.
The running of present embodiment is as follows:
Selected desulfurizing agent is CaCO3, in controlling dust-removal and desulfurizing denitration reaction device 1, PH is at 4.5-5.5.Selected denitration oxidant is
Gaseous oxidizing agent: O3, control O3It is 0.8-1.1 with NO mol ratio.
Selected desulfurizing agent is sent into by the desulfurizing agent's feeding system 19 on reserving liquid tank 2 top, and gaseous oxidizing agent is then by aoxidizing
Agent generator sends into smoke-box 1-1 by gaseous oxidizing agent jetting device 6.
1), in boiler tail flue gas initially enters gas approach pipeline 4, gas approach pipeline 4 is entered by one-level spray equipment 5
Mouth flue gas sprays desulfurization for the first time and lowers the temperature.
2) connect the gaseous oxidizing agent jetting device 6 having oxidant generator and the flue gas after cooling is sprayed into gaseous oxidant
Carry out Primary Oxidation.
3) flue gas smoke-box 1-by dust-removal and desulfurizing denitration reaction device 1 top of spray liquid and gaseous oxidizing agent is carried
1(seal area) and smoke-intake pipe 7 rapidly enter from top to bottom and the reactant liquor of liquid chamber 1-2 carry out violent " boiling " reaction, and
Retain substantial amounts of dust in flue gas.When flue gas reacts with reactant liquor in dust-removal and desulfurizing denitration reaction device 1, if reaction
The liquid level of liquid is higher than overflow pipe 8, and the most unnecessary liquid will be back in reserving liquid tank 2 height by overflow pipe 8 via reflux line 18
Spend in the highest reservoir 2-1.
4) reacted flue gas enters exhanst gas outlet pipeline 11, and in exhanst gas outlet pipeline 11, two grades of spray equipments 12 are to instead
Flue gas after should sprays again, it is ensured that unreacted SO in flue gas2And NOXContinue reaction and the dust that escapes out again
Secondary retain.
5) wet flue gas after secondary spraying is entered in cyclone separator 3 by the accelerating sections being connected with cyclone separator 3.
Clean flue gas after cyclone separator 3 separates is directly discharged into air by the chimney 17 on cyclone separator 3 top, and is separated
The drop got off flows into reflux line 18 via the drainage pipeline 28 of separator bottom, flows in reserving liquid tank 2 to circulate profit afterwards
With.
6) solution in reserving liquid tank 2 is passed back in middle reserving liquid tank 2-1 after addition desulfurizing agent, after PH is 5.5-6.2, logical
Cross liquid outlet conduit 21 and be respectively fed to one-level spray piping 13 and two grades of spray pipings 14 through pump 22.
During operation, two sub-reserving liquid tank only one of which are run, and another is in resting state, and a sub-reserving liquid tank needs clear
During reason, enable another sub-reserving liquid tank.
The desulfuration efficiency of described dust-removal and desulfurizing denitrification integrated device up to 95%, denitration efficiency up to more than 80%, dedusting
Efficiency is up to more than 95%, and resistance is 1500-2000Pa.
Detailed description of the invention two: as shown in Figure 1, Figure 2 and shown in Fig. 4, a kind of dust-removal and desulfurizing described in detailed description of the invention one takes off
Nitre integrated apparatus, described one-level spray piping 13 is provided with control valve 1, and two grades of described spray pipings 14 are pacified
Equipped with control valve 2 30, described reflux line 18 is respectively provided with a control valve 3 31 at two ports of export, described
Two liquid outlet conduit 21 on be separately installed with control valve 4 32, described discharging of waste liquid pipeline 23 is provided with control valve
6 16.
Detailed description of the invention three: as shown in Fig. 1 ~ Fig. 4, a kind of dust-removal and desulfurizing denitrification integrated device, including dust-removal and desulfurizing
Denitration reaction device 1, reserving liquid tank 2, cyclone separator 3, gas approach pipeline 4, one-level spray equipment 5, overflow pipe 8, water level
Form 9, blow-off pipe 10,11, two grades of spray equipments 12 of exhanst gas outlet pipeline, 13, two grades of spray pipings 14 of one-level spray piping, return
Flow tube road 18, pump 22, water filling port 25, connecting line 27, connecting pipeline 33, liquid phase oxidation agent storage device 26, drainage pipeline 28,
7, two desulfurizing agent's feeding systems of many smoke-intake pipes, 21, two discharging of waste liquid pipelines 23 of 19, two liquid outlet conduit and two
Motor stirrer 24；
Smoke-box 1-1 and liquid chamber 1-2, described smoke-box 1-1 from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device 1
Being separated by dividing plate 1-3 with liquid chamber 1-2, described gas approach pipeline 4 and overflow pipe 8 are arranged at dust-removal and desulfurizing denitration
The outside of reaction unit 1, the sidewall of one end of gas approach pipeline 4 and dust-removal and desulfurizing denitration reaction device 1 is affixed and and smoke-box
1-1 communicates, and is from top to bottom sequentially arranged one-level spray equipment 5, in described liquid chamber 1-2 in described gas approach pipeline 4
Vertically being provided with many smoke-intake pipes 7, the upper end of many described smoke-intake pipes 7 is affixed with dividing plate 1-3, and many smoke-intake pipes 7 with
Smoke-box 1-1 communicates, and dust-removal and desulfurizing denitration reaction device 1 sidewall is provided with water-level monitoring window 9, institute with liquid chamber 1-2 corresponding section
Overflow pipe 8 one end stated is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device 1 and communicates with liquid chamber 1-2, liquid chamber 1-2
Bottom be funnel shaped, the bottom of liquid chamber 1-2 connects with blow-off pipe 10 one end；Described exhanst gas outlet pipeline 11 one end is worn
Cross in the upper cover plate of dust-removal and desulfurizing denitration reaction device 1 is arranged on smoke-box 1-1 and affixed with dividing plate 1-3, exhanst gas outlet pipeline 11
Communicating with liquid chamber 1-2, be disposed with two grades of spray equipments 12 in exhanst gas outlet pipeline 11, exhanst gas outlet pipeline 11 other end is cigarette
Gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline 11 is affixed with cyclone separator 3 sidewall, exhanst gas outlet pipeline 11 with
Cyclone separator 3 communicates；Described one-level spray equipment 5 connects with one-level spray piping 13 one end, two grades of described spray dresses
Putting 12 to connect with two grades of spray piping 14 one end, one-level spray piping 13 and two grades of spray piping 14 other ends are in parallel；
Described reserving liquid tank 2 includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoir 2-1, every sub-reserving liquid tank
Three reservoir 2-1 be the most highly gradually lowered, two described sub-reserving liquid tank physical dimensions are identical, every height
The top, reservoir 2-1 lateral wall being positioned at centre in reserving liquid tank is respectively and fixedly provided with a desulfurizing agent's feeding system 19, every sub-liquid storage
The top of the reservoir 2-1 being positioned at centre in case is respectively arranged with motor stirrer 24, three reservoir 2-1 of every sub-reserving liquid tank
Bottom is infundibulate, and three reservoir 2-1 bottoms of every sub-reserving liquid tank all connect with a discharging of waste liquid pipeline 23, described
Two liquid outlet conduit 21 one end affixed with the lateral wall of two sub-reserving liquid tanks, and each liquid outlet conduit 21 one end with
The reservoir 2-1 connection that corresponding sub-reserving liquid tank camber is minimum, two liquid outlet conduit 21 other ends are in parallel, two liquid
The port in parallel of outlet conduit 21 passes through connecting line 27 and one-level spray piping 13 and the port in parallel of two grades of spray pipings 14
Connection, described connecting line 27 is provided with pump 22, and connecting line 27 stores dress by connecting pipeline 33 with Oxygen in Liquid agent
Put 26 connections, the sidewall of reserving liquid tank 2 be positioned at the shortest reservoir 2-1 and be arranged over water filling port 25, overflow pipe 8 another
Holding two ports of export by reflux line 18 and two sub-reserving liquid tanks to connect, drainage pipeline is passed through in the lower end of cyclone separator 3
28 connect with reflux line 18.
The running of present embodiment is as follows:
Selected desulfurizing agent is CaO, and in controlling dust-removal and desulfurizing denitration reaction device 1, PH is at 5.0-6.5.Selected denitration oxidant is liquid
Phase oxidation agent: ClO2Aqueous solution, NaClO2Solution or NaClO solution, control dust-removal and desulfurizing denitration reaction device 1 inner oxidizing agent liquid
Bulk concentration is at 0.5-5%.
Selected desulfurizing agent is sent into by the desulfurizing agent's feeding system 19 on reserving liquid tank 2 top, and Oxygen in Liquid agent is then by liquid phase
Oxidant storage device 26 is sent in liquid outlet conduit 21 by pump 22 and is mixed.
1) the one-level spray dress in boiler tail flue gas initially enters gas approach pipeline 4, containing desulfurizing agent and oxidant
Put 5 pairs of gas approach pipeline 4 inlet flue gas to spray desulfurization for the first time and aoxidize and lower the temperature.
2) flue gas smoke-box 1-1(seal area by dust-removal and desulfurizing denitration reaction device 1 top of spray liquid is carried) and enter
Smoke pipe 7 rapidly enters from top to bottom and carries out violent " boiling " reaction in the reactant liquor of liquid chamber 1-2, and retains in flue gas a large amount of
Dust.When flue gas reacts with reactant liquor in dust-removal and desulfurizing denitration reaction device 1, if the liquid level of reactant liquor is higher than overflow
Pipe 8, the most unnecessary liquid will be back to, via reflux line 18, the reservoir 2-1 that reserving liquid tank 2 camber is the highest by overflow pipe 8
In.
3), in reacted flue gas enters exhanst gas outlet pipeline 11, two grades of spray equipments 12 in exhanst gas outlet pipeline 11 are right
Reacted flue gas sprays again, it is ensured that unreacted SO in flue gas2And NOXContinue reaction and the dust that escapes out
Again retain.
4) wet flue gas after secondary spraying is entered in cyclone separator 3 by the accelerating sections being connected with cyclone separator 3.
Clean flue gas after cyclone separator 3 separates is directly discharged into air by the chimney 17 on cyclone separator 3 top, and is separated
The drop got off flows into reflux line 18 via the drainage pipeline 28 of separator bottom, flows in reserving liquid tank 2 to circulate profit afterwards
With.
5) pass back in reserving liquid tank 2 containing oxidant and the solution of desulfurizing agent, in middle reserving liquid tank 2-1, add desulfurization
After agent, PH is 6.5-7.5, then is respectively fed to one-level spray piping 13 and two grades of showers by liquid outlet conduit 21 through pump 22
Road 14.
During operation, two sub-reserving liquid tank only one of which are run, and another is in resting state, and a sub-reserving liquid tank needs clear
During reason, enable another sub-reserving liquid tank.
The desulfuration efficiency of described dust-removal and desulfurizing denitrification integrated device up to 95%-99%, denitration efficiency up to more than 80%,
Efficiency of dust collection is up to more than 95%, and resistance is 1500-2000Pa.
Detailed description of the invention four: as shown in Figure 1, Figure 2 and shown in Fig. 4, a kind of dust-removal and desulfurizing described in detailed description of the invention three takes off
Nitre integrated apparatus, described one-level spray piping 13 is provided with control valve 1, and two grades of described spray pipings 14 are pacified
Equipped with control valve 2 30, described reflux line 18 is respectively provided with a control valve 3 31 at two ports of export, described
Two liquid outlet conduit 21 on be separately installed with control valve 4 32, described connecting pipeline 33 is provided with control valve five
15,；On described discharging of waste liquid pipeline 23, control valve 6 16 is installed.
Detailed description of the invention five: as shown in Fig. 1 ~ Fig. 4, a kind of dust-removal and desulfurizing denitrification integrated device, including dust-removal and desulfurizing
Denitration reaction device 1, reserving liquid tank 2, cyclone separator 3, gas approach pipeline 4, one-level spray equipment 5, many smoke-intake pipes 7, overflow
Flow tube road 8, water-level monitoring window 9, blow-off pipe 10,11, two grades of spray equipments 12 of exhanst gas outlet pipeline, one-level spray piping 13, two grades
Spray piping 14, reflux line 18, pump 22, water filling port 25, connecting line 27,28, two desulfurizing agent's feeding systems of drainage pipeline
19, two phase oxidative agent feeding systems, 21, two discharging of waste liquid pipelines 23 of 20, two liquid outlet conduit and two electric mixings
Mix device 24；
Smoke-box 1-1 and liquid chamber 1-2, described smoke-box 1-1 from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device 1
Being separated by dividing plate 1-3 with liquid chamber 1-2, described gas approach pipeline 4 and overflow pipe 8 are arranged at dust-removal and desulfurizing denitration
The outside of reaction unit 1, the sidewall of one end of gas approach pipeline 4 and dust-removal and desulfurizing denitration reaction device 1 is affixed and and smoke-box
1-1 communicates, and is from top to bottom sequentially arranged one-level spray equipment 5, in described liquid chamber 1-2 in described gas approach pipeline 4
Vertically being provided with many smoke-intake pipes 7, the upper end of many described smoke-intake pipes 7 is affixed with dividing plate 1-3, and many smoke-intake pipes 7 with
Smoke-box 1-1 communicates, and dust-removal and desulfurizing denitration reaction device 1 sidewall is provided with water-level monitoring window 9, institute with liquid chamber 1-2 corresponding section
Overflow pipe 8 one end stated is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device 1 and communicates with liquid chamber 1-2, liquid chamber 1-2
Bottom be funnel shaped, the bottom of liquid chamber 1-2 connects with blow-off pipe 10 one end；Described exhanst gas outlet pipeline 11 one end is worn
Cross in the upper cover plate of dust-removal and desulfurizing denitration reaction device 1 is arranged on smoke-box 1-1 and affixed with dividing plate 1-3, exhanst gas outlet pipeline 11
Communicating with liquid chamber 1-2, be disposed with two grades of spray equipments 12 in exhanst gas outlet pipeline 11, exhanst gas outlet pipeline 11 other end is cigarette
Gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline 11 is affixed with cyclone separator 3 sidewall, exhanst gas outlet pipeline 11 with
Cyclone separator 3 communicates；Described one-level spray equipment 5 connects with one-level spray piping 13 one end, two grades of described spray dresses
Putting 12 to connect with two grades of spray piping 14 one end, one-level spray piping 13 and two grades of spray piping 14 other ends are in parallel；
Described reserving liquid tank 2 includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoir 2-1, every sub-reserving liquid tank
Three reservoir 2-1 be the most highly gradually lowered, two described sub-reserving liquid tank physical dimensions are identical, every height
The top, reservoir 2-1 lateral wall being positioned at centre in reserving liquid tank is respectively and fixedly provided with a desulfurizing agent's feeding system 19 and a solid phase oxygen
Agent feeding system 20, the top of the reservoir 2-1 being positioned at centre in every sub-reserving liquid tank is respectively arranged with motor stirrer 24, often
Three reservoir 2-1 bottoms of individual sub-reserving liquid tank are infundibulate, and three reservoir 2-1 bottoms of every sub-reserving liquid tank are all with one
Individual discharging of waste liquid pipeline 23 connects, and two described liquid outlet conduit 21 one end are affixed with the lateral wall of two sub-reserving liquid tanks,
And the reservoir 2-1 connection that each liquid outlet conduit 21 one end is minimum with corresponding sub-reserving liquid tank camber, two liquid discharges
Mouth pipeline 21 other end is in parallel, and the port in parallel of two liquid outlet conduit 21 is by connecting line 27 and one-level spray piping 13
And the port in parallel connection of two grades of spray pipings 14, described connecting line 27 is provided with pump 22, the sidewall of reserving liquid tank 2 is upper
It is arranged over water filling port 25, two outlets by reflux line 18 of overflow pipe 8 other end in the shortest reservoir 2-1
End connects with two sub-reserving liquid tanks, and the lower end of cyclone separator 3 is connected with reflux line 18 by drainage pipeline 28.
The running of present embodiment is as follows:
Selected desulfurizing agent is MgO, and in controlling dust-removal and desulfurizing denitration reaction device 1, PH is at 5.0-6.5.Selected denitration oxidant is solid
Phase oxidation agent: NaClO2Or NaClO solid, control dust-removal and desulfurizing denitration reaction device 1 inner oxidizing agent concentration at 0.5-5%.
Selected desulfurizing agent and oxidant are all by desulfurizing agent's feeding system 19 and the phase oxidative agent feed on reserving liquid tank 2 top
System 20 sends into stirring mixing in an Aconitum carmichaeli Debx. reserving liquid tank.
1) the one-level spray dress in boiler tail flue gas initially enters gas approach pipeline 4, containing desulfurizing agent and oxidant
Put 5 pairs of gas approach pipeline 4 inlet flue gas to spray desulfurization for the first time, aoxidize and lower the temperature.
2) flue gas smoke-box 1-1(seal area by dust-removal and desulfurizing denitration reaction device 1 top of spray liquid is carried) and enter
Smoke pipe 7 rapidly enters from top to bottom and carries out violent " boiling " reaction in the reactant liquor of liquid chamber 1-2, and retains in flue gas a large amount of
Dust.When flue gas reacts with reactant liquor in dust-removal and desulfurizing denitration reaction device 1, if the liquid level of reactant liquor is higher than overflow
Pipe 8, the most unnecessary liquid will be back to, via reflux line 18, the reservoir 2-1 that reserving liquid tank 2 camber is the highest by overflow pipe 8
In.
3), in reacted flue gas enters exhanst gas outlet pipeline 11, two grades of spray equipments 12 in exhanst gas outlet pipeline 11 are right
Reacted flue gas sprays again, it is ensured that unreacted SO in flue gas2And NOXContinue reaction and the dust that escapes out
Again retain.
4) wet flue gas after secondary spraying is entered in cyclone separator 3 by the accelerating sections being connected with cyclone separator 3.
Clean flue gas after cyclone separator 3 separates is directly discharged into air by cyclone separator 3 top chimney 17, and under being separated
The drop come flows into reflux line 18 via the drainage pipeline 28 of separator bottom, flows in reserving liquid tank 2 to recycle afterwards.
5) pass back in reserving liquid tank 2 containing oxidant and the solution of desulfurizing agent, in middle reserving liquid tank 2-1, add desulfurization
After agent and oxidant, PH is 6.5-7.5, then is respectively fed to one-level spray piping 13 and two by liquid outlet conduit 21 through pump 22
Level spray piping 14.
During operation, two sub-reserving liquid tank only one of which are run, and another is in resting state, and a sub-reserving liquid tank needs clear
During reason, enable another sub-reserving liquid tank.
The desulfuration efficiency of described dust-removal and desulfurizing denitrification integrated device up to 95%-99%, denitration efficiency up to more than 80%,
Efficiency of dust collection is up to more than 95%, and resistance is 1500-2000Pa.
Detailed description of the invention six: as shown in Figure 1, Figure 2 and shown in Fig. 4, a kind of dust-removal and desulfurizing described in detailed description of the invention five takes off
Nitre integrated apparatus, described one-level spray piping 13 is provided with control valve 1, and two grades of described spray pipings 14 are pacified
Equipped with control valve 2 30, described reflux line 18 is respectively provided with a control valve 3 31 at two ports of export, described
Two liquid outlet conduit 21 on be separately installed with control valve 4 32, described discharging of waste liquid pipeline 23 is provided with control valve
6 16.
Work process is: as shown in Fig. 1 ~ Fig. 4, and reserving liquid tank 2 uses the sub-reserving liquid tank of wherein side, and another Aconitum carmichaeli Debx. stores up
Liquid case is standby.In reserving liquid tank 2, desulfurizing agent is added by top desulfurization feeding system 19, and oxidant passes through gaseous oxidizing agent respectively
Jetting device 6, liquid phase oxidation agent storage device 26 and reserving liquid tank 2 top phase oxidative agent feeding system 20 are sent into, by going out
In mouth pipeline 21, the pH value of liquid controls desulfurizing agent feeding coal；By NOx concentration in flue gas according to O3: NOx ratio example (0.8-
1.1%) O is controlled3Addition；Control oxidant by the concentration (0.5-5%) of dust-removal and desulfurizing denitration reaction device 1 inner oxidizing agent to give
Doses.In dust-removal and desulfurizing denitration reaction device 1, the height of liquid level is highly determined by overflow pipe 8, and is observed by water-level monitoring window 9
In reaction unit " fluidized state ".
In reserving liquid tank 2, mixed liquor is through motor stirrer 24 stirring mixing, by liquid outlet conduit 21 defeated with pump 22
Deliver in one-level spray equipment 5 and two grades of spray equipments 12.One-level spray equipment 5 in gas approach pipeline 4 is to inlet flue gas
Spray oxidation sweetening for the first time and lower the temperature simultaneously, then flue gas carry spray liquid by gas approach pipeline 4 enter dedusting take off
The smoke-box 1-1(seal area on sulfur denitration reaction device 1 top).Finally by many smoke-intake pipes 7 from top to bottom quickly by wet flue gas
It is passed through in the reactant liquor of liquid chamber 1-2 and carries out violent " boiling " reaction, and a large amount of exhaust gas dusts are trapped in reaction liquid.
It is fully contacted with reactant liquor from the flue gas of the ejection of smoke-intake pipe 7, improves reaction rate and dust removing effects.
When flue gas reacts with reactant liquor in dust-removal and desulfurizing denitration reaction device 1, if the liquid level of reactant liquor is higher than
Overflow pipe 8, the most unnecessary liquid will be back to, via reflux line 18, the liquid storage that reserving liquid tank 2 camber is the highest by overflow pipe 8
In groove 2-1.Reacted flue gas enters exhanst gas outlet pipeline 11, and in exhanst gas outlet pipeline 11, two grades of spray equipments 12 are to reaction
After flue gas again spray, it is ensured that unreacted SO in flue gas2And NOXThe dust continuing to react and escape out cuts again
Stay.Wet flue gas after secondary spraying is entered in cyclone separator 3 by the accelerating sections being connected with cyclone separator 3.
Because demister separation water droplet principle is inertial separation, frequently result in " gypsum rain " when demister work is abnormal,
Causing serious secondary pollution, for solving this difficult problem, the present invention uses the centrifugal force of cyclone separator to force to separate water droplet, separates
Effect is much better than more than 3 grades demisters, thoroughly solves " gypsum rain " difficult problem.The liquid that will be carried in flue gas by cyclone separator 3
Drip and separate, dust removing effects, isolated reactant liquor recycling are greatly improved simultaneously.After cyclone separator 3 separates
Clean flue gas be directly discharged into air by cyclone separator 3 top chimney 17, the dirt drop of taking separated then passes through
Drainage pipeline 28 realizes recycling of reactant liquor in reflux line 18 flows into reserving liquid tank 2.
Along with the carrying out of reaction, in reserving liquid tank 2, reactant liquor can contain substantial amounts of dust and other insoluble precipitation.By storage
The discharging of waste liquid pipeline 23 periodic exhaustion precipitate of liquid case 2 side and waste liquid enter filter press, after filter pressing at filter cake landfill
Reason, filtrate returns to system and reuses.Ensure that the normal overflow of reactant liquor is anti-with normal by water filling port 25 water filling of reserving liquid tank 2
Answer liquid level.
Dust-removal and desulfurizing denitration reaction device 1 and cyclone separator 3 and each pipeline can use corrosion-resistant, acid resisting material
316L makes, and reserving liquid tank 2, each pipeline and each control valve can use PVC material to make, and pump 22 uses acidproof water pump.
In said apparatus, the raw material of reactant liquor is desulfurizing agent and denitration oxidant.Described desulfurizing agent is CaCO3, CaO or
MgO.Described denitration oxidant is O3、ClO2、NaClO2, NaClO any one.
Said apparatus dust-removal and desulfurizing denitration ability and the big I of specification are adjusted according to connected boiler output, and scope is
0.5~165t/h.Processing means can be simplified accordingly for relatively arcola, reduce cost.Above-mentioned dust-removal and desulfurizing denitrification integrated device
Desulfuration efficiency up to 95%-99%, denitration efficiency is up to more than 80%, and efficiency of dust collection is up to more than 95%.And meet SO2≤50-
100mg/m3, NOX≤100 mg/m3, flue dust: 5-30mg/m3.The resistance of a whole set of dust-removal and desulfurizing denitrification integrated device is 1500-
2000Pa。
Claims (6)
1. a dust-removal and desulfurizing denitrification integrated device, it is characterised in that: include dust-removal and desulfurizing denitration reaction device (1), liquid storage
Case (2), cyclone separator (3), gas approach pipeline (4), one-level spray equipment (5), gaseous oxidizing agent jetting device (6), overflow
Flow tube road (8), water-level monitoring window (9), blow-off pipe (10), exhanst gas outlet pipeline (11), two grades of spray equipments (12), one-level showers
Road (13), two grades of spray pipings (14), reflux line (18), pump (22), water filling port (25), connecting line (27), drainage pipelines
(28), many smoke-intake pipes (7), two desulfurizing agent's feeding systems (19), two liquid outlet conduit (21), two discharging of waste liquid pipes
Road (23) and two motor stirrers (24)；
Smoke-box (1-1) and liquid chamber (1-2) from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device (1), described
Smoke-box (1-1) and liquid chamber (1-2) are separated by dividing plate (1-3), and described gas approach pipeline (4) and overflow pipe (8) are equal
Being arranged on the outside of dust-removal and desulfurizing denitration reaction device (1), one end of gas approach pipeline (4) fills with dust-removal and desulfurizing denitration reaction
Put the sidewall of (1) affixed and communicate with smoke-box (1-1), in described gas approach pipeline (4), be from top to bottom sequentially arranged one-level
Spray equipment (5) and gaseous oxidizing agent jetting device (6), be vertically provided with many smoke-intake pipes in described liquid chamber (1-2)
(7), the upper end of many described smoke-intake pipes (7) is affixed with dividing plate (1-3), and many smoke-intake pipes (7) communicate with smoke-box (1-1),
Be provided with water-level monitoring window (9) on dust-removal and desulfurizing denitration reaction device (1) sidewall with liquid chamber (1-2) corresponding section, described overflows
Flow tube road (8) one end is affixed with the sidewall of dust-removal and desulfurizing denitration reaction device (1) and communicates with liquid chamber (1-2), liquid chamber (1-
2) bottom is funnel shaped, and the bottom of liquid chamber (1-2) connects with blow-off pipe (10) one end；Described exhanst gas outlet pipeline
(11) in one end is arranged on smoke-box (1-1) through the upper cover plate of dust-removal and desulfurizing denitration reaction device (1) and solid with dividing plate (1-3)
Connecing, exhanst gas outlet pipeline (11) communicates with liquid chamber (1-2), is disposed with two grades of spray equipments in exhanst gas outlet pipeline (11)
(12), exhanst gas outlet pipeline (11) other end is flue gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline (11) and rotation
Wind separator (3) sidewall is affixed, and exhanst gas outlet pipeline (11) communicates with cyclone separator (3)；Described one-level spray equipment (5)
Connecting with one-level spray piping (13) one end, two grades of described spray equipments (12) connect with two grades of spray piping (14) one end,
One-level spray piping (13) and two grades of spray piping (14) other ends are in parallel；
Described reserving liquid tank (2) includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs (2-1), and every height stores up
Three reservoirs (2-1) of liquid case are the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical,
Reservoir (2-1) top, lateral wall being positioned at centre in every sub-reserving liquid tank is respectively and fixedly provided with a desulfurizing agent's feeding system (19),
The top of the reservoir (2-1) being positioned at centre in every sub-reserving liquid tank is respectively arranged with motor stirrer (24), every sub-reserving liquid tank
Three reservoir (2-1) bottoms be infundibulate, three reservoir (2-1) bottoms of every sub-reserving liquid tank all with a waste liquid
Discharge tube (23) connects, and two described liquid outlet conduit (21) one end are affixed with the lateral wall of two sub-reserving liquid tanks, and
Reservoir (2-1) connection that each liquid outlet conduit (21) one end is minimum with corresponding sub-reserving liquid tank camber, two liquid
Outlet conduit (21) other end is in parallel, and the port in parallel of two liquid outlet conduit (21) is sprayed with one-level by connecting line (27)
The port in parallel connection of shower pipe road (13) and two grades of spray pipings (14), described connecting line (27) is provided with pump (22),
Be positioned at the shortest reservoir (2-1) on the sidewall of reserving liquid tank (2) and be arranged over water filling port (25), overflow pipe (8) another
Holding two ports of export by reflux line (18) and two sub-reserving liquid tanks to connect, draining is passed through in the lower end of cyclone separator (3)
Pipeline (28) connects with reflux line (18).
A kind of dedusting the most according to claim 1 and denitration integrated device, it is characterised in that: described one-level spray
Control valve one (29) is installed on shower pipe road (13), two grades of described spray pipings (14) are provided with control valve two (30), institute
The reflux line (18) stated is upper is respectively provided with a control valve three (31), two described liquid outlets at two ports of export
Control valve four (32) it is separately installed with on pipeline (21).
3. a dust-removal and desulfurizing denitrification integrated device, it is characterised in that: include dust-removal and desulfurizing denitration reaction device (1), liquid storage
Case (2), cyclone separator (3), gas approach pipeline (4), one-level spray equipment (5), overflow pipe (8), water-level monitoring window (9),
Blow-off pipe (10), exhanst gas outlet pipeline (11), two grades of spray equipments (12), one-level spray piping (13), two grades of spray pipings
(14), reflux line (18), pump (22), water filling port (25), connecting line (27), connecting pipeline (33), Oxygen in Liquid agent store
Device (26), drainage pipeline (28), many smoke-intake pipes (7), two desulfurizing agent's feeding systems (19), two liquid outlet conduit
(21), two discharging of waste liquid pipelines (23) and two motor stirrers (24)；
Smoke-box (1-1) and liquid chamber (1-2) from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device (1), described
Smoke-box (1-1) and liquid chamber (1-2) are separated by dividing plate (1-3), and described gas approach pipeline (4) and overflow pipe (8) are equal
Being arranged on the outside of dust-removal and desulfurizing denitration reaction device (1), one end of gas approach pipeline (4) fills with dust-removal and desulfurizing denitration reaction
Put the sidewall of (1) affixed and communicate with smoke-box (1-1), in described gas approach pipeline (4), be from top to bottom sequentially arranged one-level
Spray equipment (5), is vertically provided with many smoke-intake pipes (7), many described smoke-intake pipes (7) in described liquid chamber (1-2)
Upper end affixed with dividing plate (1-3), and many smoke-intake pipes (7) communicate with smoke-box (1-1), dust-removal and desulfurizing denitration reaction device (1)
It is provided with water-level monitoring window (9), described overflow pipe (8) one end and dust-removal and desulfurizing with liquid chamber (1-2) corresponding section on sidewall
The sidewall of denitration reaction device (1) is affixed and communicates with liquid chamber (1-2), and the bottom of liquid chamber (1-2) is funnel shaped, liquid
The bottom of room (1-2) connects with blow-off pipe (10) one end；Described exhanst gas outlet pipeline (11) one end passes dust-removal and desulfurizing denitration
It is interior and affixed with dividing plate (1-3) that the upper cover plate of reaction unit (1) is arranged on smoke-box (1-1), exhanst gas outlet pipeline (11) and liquid
(1-2) communicates in room, is disposed with two grades of spray equipments (12) in exhanst gas outlet pipeline (11), and exhanst gas outlet pipeline (11) other end is
Flue gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline (11) is affixed with cyclone separator (3) sidewall, smoke outlet tube
Road (11) communicates with cyclone separator (3)；Described one-level spray equipment (5) connects with one-level spray piping (13) one end, institute
The two grades of spray equipments (12) stated connect with two grades of spray piping (14) one end, one-level spray piping (13) and two grades of spray pipings
(14) other end is in parallel；
Described reserving liquid tank (2) includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs (2-1), and every height stores up
Three reservoirs (2-1) of liquid case are the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical,
Reservoir (2-1) top, lateral wall being positioned at centre in every sub-reserving liquid tank is respectively and fixedly provided with a desulfurizing agent's feeding system (19),
The top of the reservoir (2-1) being positioned at centre in every sub-reserving liquid tank is respectively arranged with motor stirrer (24), every sub-reserving liquid tank
Three reservoir (2-1) bottoms be infundibulate, three reservoir (2-1) bottoms of every sub-reserving liquid tank all with a waste liquid
Discharge tube (23) connects, and two described liquid outlet conduit (21) one end are affixed with the lateral wall of two sub-reserving liquid tanks, and
Reservoir (2-1) connection that each liquid outlet conduit (21) one end is minimum with corresponding sub-reserving liquid tank camber, two liquid
Outlet conduit (21) other end is in parallel, and the port in parallel of two liquid outlet conduit (21) is sprayed with one-level by connecting line (27)
The port in parallel connection of shower pipe road (13) and two grades of spray pipings (14), described connecting line (27) is provided with pump (22),
Connecting line (27) is connected with liquid phase oxidation agent storage device (26) by connecting pipeline (33), and the sidewall of reserving liquid tank (2) is upper
Being arranged over water filling port (25) in the shortest reservoir (2-1), overflow pipe (8) other end is by reflux line (18)
Two ports of export and two sub-reserving liquid tank connections, drainage pipeline (28) and reflux line are passed through in the lower end of cyclone separator (3)
(18) connection.
A kind of dust-removal and desulfurizing denitrification integrated device the most according to claim 3, it is characterised in that: described one-level spray
Control valve one (29) is installed on pipeline (13), two grades of described spray pipings (14) are provided with control valve two (30), described
Reflux line (18) upper at two ports of export, a control valve three (31), two described liquid outlet tubes are respectively installed
It is separately installed with control valve four (32) on road (21), described connecting pipeline (33) is provided with control valve five (15).
5. a dust-removal and desulfurizing denitrification integrated device, it is characterised in that: include dust-removal and desulfurizing denitration reaction device (1), liquid storage
Case (2), cyclone separator (3), gas approach pipeline (4), one-level spray equipment (5), many smoke-intake pipes (7), overflow pipes
(8), water-level monitoring window (9), blow-off pipe (10), exhanst gas outlet pipeline (11), two grades of spray equipments (12), one-level spray pipings
(13), two grades of spray pipings (14), reflux line (18), pump (22), water filling port (25), connecting lines (27), drainage pipelines
(28), two desulfurizing agent's feeding systems (19), two phase oxidatives agent feeding system (20), two liquid outlet conduit (21),
Two discharging of waste liquid pipelines (23) and two motor stirrers (24)；
Smoke-box (1-1) and liquid chamber (1-2) from top to bottom it is divided in described dust-removal and desulfurizing denitration reaction device (1), described
Smoke-box (1-1) and liquid chamber (1-2) are separated by dividing plate (1-3), and described gas approach pipeline (4) and overflow pipe (8) are equal
Being arranged on the outside of dust-removal and desulfurizing denitration reaction device (1), one end of gas approach pipeline (4) fills with dust-removal and desulfurizing denitration reaction
Put the sidewall of (1) affixed and communicate with smoke-box (1-1), in described gas approach pipeline (4), be from top to bottom sequentially arranged one-level
Spray equipment (5), is vertically provided with many smoke-intake pipes (7), many described smoke-intake pipes (7) in described liquid chamber (1-2)
Upper end affixed with dividing plate (1-3), and many smoke-intake pipes (7) communicate with smoke-box (1-1), dust-removal and desulfurizing denitration reaction device (1)
It is provided with water-level monitoring window (9), described overflow pipe (8) one end and dust-removal and desulfurizing with liquid chamber (1-2) corresponding section on sidewall
The sidewall of denitration reaction device (1) is affixed and communicates with liquid chamber (1-2), and the bottom of liquid chamber (1-2) is funnel shaped, liquid
The bottom of room (1-2) connects with blow-off pipe (10) one end；Described exhanst gas outlet pipeline (11) one end passes dust-removal and desulfurizing denitration
It is interior and affixed with dividing plate (1-3) that the upper cover plate of reaction unit (1) is arranged on smoke-box (1-1), exhanst gas outlet pipeline (11) and liquid
(1-2) communicates in room, is disposed with two grades of spray equipments (12) in exhanst gas outlet pipeline (11), and exhanst gas outlet pipeline (11) other end is
Flue gas accelerating sections, the flue gas accelerating sections end of exhanst gas outlet pipeline (11) is affixed with cyclone separator (3) sidewall, smoke outlet tube
Road (11) communicates with cyclone separator (3)；Described one-level spray equipment (5) connects with one-level spray piping (13) one end, institute
The two grades of spray equipments (12) stated connect with two grades of spray piping (14) one end, one-level spray piping (13) and two grades of spray pipings
(14) other end is in parallel；
Described reserving liquid tank (2) includes that two sub-reserving liquid tanks, every sub-reserving liquid tank are divided into three reservoirs (2-1), and every height stores up
Three reservoirs (2-1) of liquid case are the most highly gradually lowered, and two described sub-reserving liquid tank physical dimensions are identical,
Every sub-reserving liquid tank is positioned at reservoir (2-1) top, lateral wall of centre be respectively and fixedly provided with a desulfurizing agent's feeding system (19) and
One phase oxidative agent feeding system (20), the top of the reservoir (2-1) being positioned at centre in every sub-reserving liquid tank is respectively arranged with
Motor stirrer (24), three reservoir (2-1) bottoms of every sub-reserving liquid tank are infundibulate, three of every sub-reserving liquid tank
Reservoir (2-1) bottom all connects with a discharging of waste liquid pipeline (23), two described liquid outlet conduit (21) one end with
The lateral wall of two sub-reserving liquid tanks is affixed, and each liquid outlet conduit (21) one end is minimum with corresponding sub-reserving liquid tank camber
Reservoir (2-1) connection, two liquid outlet conduit (21) other ends are in parallel, the parallel connected end of two liquid outlet conduit (21)
Mouth is connected with the port in parallel of one-level spray piping (13) and two grades of spray pipings (14) by connecting line (27), described company
In adapter road (27), pump (22) is installed, the sidewall of reserving liquid tank (2) is positioned at the shortest reservoir (2-1) and is arranged over note
The mouth of a river (25), overflow pipe (8) other end is connected by two ports of export and two sub-reserving liquid tanks of reflux line (18), whirlwind
The lower end of separator (3) is connected with reflux line (18) by drainage pipeline (28).
A kind of dust-removal and desulfurizing denitrification integrated device the most according to claim 5, it is characterised in that: described one-level spray
Control valve one (29) is installed on pipeline (13), two grades of described spray pipings (14) are provided with control valve two (30), described
Reflux line (18) upper at two ports of export, a control valve three (31), two described liquid outlet tubes are respectively installed
Control valve four (32) it is separately installed with on road (21).
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| CN201610740720.0A CN106268231B (en) | 2016-08-29 | 2016-08-29 | A kind of dust-removal and desulfurizing denitrification integrated device |
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| CN201610740720.0A CN106268231B (en) | 2016-08-29 | 2016-08-29 | A kind of dust-removal and desulfurizing denitrification integrated device |
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| CN106268231B CN106268231B (en) | 2018-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110833742A (en) * | 2019-12-06 | 2020-02-25 | 中冶焦耐(大连)工程技术有限公司 | Dust-containing tail gas purification device and process |
| CN117065542A (en) * | 2023-09-26 | 2023-11-17 | 河北炳岩新材科技有限公司 | Desulfurization equipment is used in production of green metal steel casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2417154A1 (en) * | 2000-07-24 | 2002-01-31 | Shawn Alan Stewart | A method and system for purifying or cleansing a gas stream or gaseous body |
| CN204107328U (en) * | 2013-12-17 | 2015-01-21 | 张继惟 | A kind of high-concentration fume purifier |
| CN205261607U (en) * | 2016-01-07 | 2016-05-25 | 浙江宏宇环保工程设备有限公司 | Whirlwind disconnect -type deNOx systems |
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2016
- 2016-08-29 CN CN201610740720.0A patent/CN106268231B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2417154A1 (en) * | 2000-07-24 | 2002-01-31 | Shawn Alan Stewart | A method and system for purifying or cleansing a gas stream or gaseous body |
| CN204107328U (en) * | 2013-12-17 | 2015-01-21 | 张继惟 | A kind of high-concentration fume purifier |
| CN205261607U (en) * | 2016-01-07 | 2016-05-25 | 浙江宏宇环保工程设备有限公司 | Whirlwind disconnect -type deNOx systems |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110833742A (en) * | 2019-12-06 | 2020-02-25 | 中冶焦耐(大连)工程技术有限公司 | Dust-containing tail gas purification device and process |
| CN110833742B (en) * | 2019-12-06 | 2023-10-24 | 中冶焦耐(大连)工程技术有限公司 | Dust-containing tail gas purifying device and process |
| CN117065542A (en) * | 2023-09-26 | 2023-11-17 | 河北炳岩新材科技有限公司 | Desulfurization equipment is used in production of green metal steel casting |
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| CN106268231B (en) | 2018-08-10 |
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