CN109806744A - A kind of desulfurizing industrial fume denitration takes off white device - Google Patents

A kind of desulfurizing industrial fume denitration takes off white device Download PDF

Info

Publication number
CN109806744A
CN109806744A CN201910240688.3A CN201910240688A CN109806744A CN 109806744 A CN109806744 A CN 109806744A CN 201910240688 A CN201910240688 A CN 201910240688A CN 109806744 A CN109806744 A CN 109806744A
Authority
CN
China
Prior art keywords
flue
white
gas
desulfurizing
bulb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910240688.3A
Other languages
Chinese (zh)
Inventor
杨颖欣
钟璐
胡静龄
刘勇
胡小吐
薛学良
杨森林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jiade Environmental Protection Technology Co Ltd
Original Assignee
Guangdong Jiade Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Jiade Environmental Protection Technology Co Ltd filed Critical Guangdong Jiade Environmental Protection Technology Co Ltd
Priority to CN201910240688.3A priority Critical patent/CN109806744A/en
Publication of CN109806744A publication Critical patent/CN109806744A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

The present invention provides a kind of desulfurizing industrial fume denitrations to take off white device comprising blower, desulfurizing tower, SCR reactor, deduster, pyrolysis installation, pipe-line system and cooling mechanism;First flue and blower are connected with pyrolysis installation, and the second flue is connected with SCR reactor, and pyrolysis installation is connected with SCR reactor by third flue, and deduster is connected on the first flue;It include chimney area, dedusting mist eliminating zone, spraying zone and crystal region inside desulfurizing tower, the side wall of desulfurizing tower is equipped with the smoke inlet being connected with SCR reactor, the upper end of cooling chamber is provided with gas inlet and air outlet slit, gas inlet is connected with bulb, the side wall of cooling chamber is equipped with stomata, the lower end of cooling chamber is equipped with exhanst gas outlet, and condensed flue gas is discharged from exhanst gas outlet.The device can integrated desulfurizing denitration and de- white effect be integrated, it is effective to realize to the efficient process of industrial smoke, prevent flue gas pollution caused by atmospheric environment, and cost is relatively low.

Description

A kind of desulfurizing industrial fume denitration takes off white device
Technical field
The present invention relates to fume treatment fields more particularly to a kind of desulfurizing industrial fume denitration to take off white device.
Background technique
In the flue gas that coal-fired boiler in power plant, sintering machine of steel mill and some other combustion of fossil fuels kiln generate, contain A large amount of sulfur dioxide and nitrogen oxides, if these flue gas emissions, which are directly entered atmosphere, to pollute air, thus shape At environmental hazards such as acid rains, mainly SCR technology (SCR) is applied to administer cigarette the processing of nitrogen oxides at present The discharge of nitrogen oxides in gas and is generated nontoxic using reducing agent selectively with the reaction of nitrogen oxides in flue gas Free of contamination nitrogen and water, to achieve the purpose that denitration environmental protection.And the processing of sulfur dioxide is filled by wet desulphurization Set to remove, but since the humidity of flue gas after wet desulphurization is up to 13~15%, flue-gas temperature is lower, 50~55 DEG C it Between, flue gas is discharged into atmosphere by chimney and mixes with cold air, and the vapor in flue gas is in hypersaturated state, and part vapor is cold Mist is condensed, just will appear " white cigarette " phenomenon, especially winter, white cigarette phenomenon can be aggravated, be easy to cause visual pollution, is influenced Environmental beauty;In order to eliminate the white cigarette formed above blowdown stack, the method for being generally used flue gas reheat, but made at present The method of flue gas reheat is still hot to have processing cost of investment height, and handles halfway defect.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of desulfurizing industrial fume denitrations to take off white device, The device can integrated desulfurizing denitration and de- white effect be integrated, it is effective to realize to the efficient process of industrial smoke, prevent cigarette Gas is polluted caused by atmospheric environment, and cost is relatively low.
Based on this, the invention proposes a kind of desulfurizing industrial fume denitrations to take off white device comprising blower, desulfurizing tower, SCR Reactor, deduster, pyrolysis installation, pipe-line system and cooling mechanism;
The pipe-line system includes the first flue, the second flue and third flue, first flue gas The first end of the first end of pipeline and second flue is connected with the blower respectively, first fume pipe The second end in road is connected with the pyrolysis installation, the second end of second flue and the SCR reactor phase Connection, the pyrolysis installation are connected with the SCR reactor by the third flue;
The deduster connection is on first flue;
It include chimney area, dedusting mist eliminating zone, spraying zone and the crystal region being sequentially arranged from top to bottom inside the desulfurizing tower, The side wall of the desulfurizing tower is equipped with the smoke inlet being connected with the SCR reactor, and the smoke inlet is positioned at described Between spraying zone and the crystal region;
Several spray tubes being parallel to each other are equipped in the spraying zone, and the spray tube is to arrange in the horizontal direction;
Primary demister, condenser and advanced demister are disposed in the dedusting mist eliminating zone from bottom to top, it is described It is provided with filter device at the liquid outlet of condenser, and is equipped with hot air pipe between the advanced demister and the chimney area, and The chimney area is equipped with smoke outlet, and the smoke outlet is connected with the cooling mechanism;
The cooling mechanism include cooling chamber, liquid storage pipe, several be set to the indoor bulb of the cooling and several The gas-liquid separation plate of a horizontal side lower end for being located at each bulb, the drop condensed out in flue gas pass through institute Gas-liquid separation plate is stated to flow into the liquid storage pipe;
The upper end of the cooling chamber is provided with gas inlet and air outlet slit, and the gas inlet is connected with the bulb It connects, the side wall of the cooling chamber is equipped with stomata, and the lower end of the cooling chamber is equipped with exhanst gas outlet, and condensed flue gas is from described Exhanst gas outlet discharge.
Preferably, it further includes air preheater that the desulfurizing industrial fume denitration, which takes off white device, and the air is pre- Hot device is connected with the SCR reactor by the 4th flue;
The deduster is provided with dust-exhausting port, and the dust-exhausting port passes through the 5th flue and the 4th flue phase Connection.
Preferably, booster body, the supercharger are provided between the pyrolysis installation and the SCR reactor Structure is connected on the third flue.
Preferably, it further includes cooling air unit that the desulfurizing industrial fume denitration, which takes off white device, the cooling air unit It is connected with first flue, and the cooling air unit is equipped with for adjusting the cold blast rate entered in the first flue Regulating valve.
Preferably, the condenser include it is upper and under the spray head, condensate layer and at least two layers of the liquid storage that are sequentially arranged Layer, several reservoirs, and the reservoir interlaced arrangement of the neighbouring reserve liquid layer are evenly equipped on the reserve liquid layer, and each The reservoir is connected with the filter device respectively.
Preferably, it is equipped with filter core inside the filter device, the exit of the filter device is communicated with cooling The water outlet of device, the cooler is connected through condenser pipe with the spray head, and is provided with circulating pump on the condenser pipe.
Preferably, the desulfurizing industrial fume denitration take off white device further include the lime case being successively linked in sequence, Lime white blender and lime slurry supply pump, the lime case are connected with the outlet of the chimney, the lime slurry supply pump connection In the lower part of the desulfurizing tower.
Preferably, be provided with dehumidifier between the desulfurizing tower and the lime case, the dehumidifier with it is described The outlet of chimney is connected, and is provided with feed inlet on the dehumidifier.
Preferably, the gas-liquid separation plate is circular slab, is equipped with hinge on the central axis of the circular slab, makes A half-circle area for obtaining the circular slab can be movable, another half-circle area is fixed.
Preferably, each bulb is U-shaped is distributed in the cooling chamber, and the folder of the bulb and horizontal plane Angle is 15 °, and the cylinder tube spacing of the adjacent two rows bulb is 0.5m~2m;
Half diameter of a circle of protrusion of the bulb be 0.5m~1m, per two adjacent bulbs protrusion semicircle the center of circle it Between spacing be 0.1m~0.3m, connect the cylindrical tube of the protrusion semicircle of two adjacent bulbs internal diameter be 0.1m~ 0.5m.The implementation of the embodiments of the present invention has the following beneficial effects:
Flue gas desulfurization and denitrification of the invention takes off white device during carrying out denitration process to flue gas, and flue gas passes through pyrolysis It is entered after device in SCR reactor, realizes denitration, introduce flue gas in pyrolysis installation by the first flue in blower Afterwards, be evenly supplied in SCR reactor again after the high-temperature flue gas that the high-temperature flue gas of pyrolysis and blower convey being sufficiently mixed, with into The sufficient denitration reaction of row, reduces and is lost and prevents the not sufficiently reactive flue gas containing nitrogen oxides from entering subsequent processing In reaction, subsequent processing reaction is influenced, or even pernicious gas is drained into atmosphere again.And the flue gas Jing Guo denitration process When entering progress desulfurization in desulfurizing tower, water capacity is still higher in the flue gas after desulfurization, so need corresponding flue gas again Secondary be passed through carries out taking off white processing in cooling mechanism, in the cooling chamber for being provided with multiple groups bulb, is carried out using air to hot fume Condensation cooling, so that the heat-transfer effect of system greatly increases, bulb of the invention can be under very low flow velocity for the design of bulb Very flourishing turbulent flow is generated, so that being not easy to form the nucleus of dirty layer in the closing of bulb and building up foulant, to guarantee bulb It is less scaling, and can be improved the heat exchange efficiency of entire cooling mechanism in the indoor bulb arrangement that cools down, to thoroughly prevent cigarette The generation of chimney discharged gas fume phenomenon.Structure of Flue Gas Desulfuration Absorbing design of the invention is very simple, and desulfurization effect is good, and can be to white cigarette It is pre-processed, protects environment, reduced pollution, reduce investment outlay.
Detailed description of the invention
Fig. 1 is the overall structure diagram that desulfurizing industrial fume denitration takes off white device described in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of cooling mechanism described in the embodiment of the present invention;
Fig. 3 is the structural schematic diagram of desulfurizing tower described in the embodiment of the present invention.
Description of symbols:
1, blower, 2, desulfurizing tower, 21, chimney area, 211, smoke outlet, 22, dedusting mist eliminating zone, 23, spraying zone, 24, crystallization Area, 25, smoke inlet, 3, SCR reactor, 4, deduster, 41, dust-exhausting port, 5, pyrolysis installation, 6, pipe-line system, the 61, first cigarette Feed channel, the 62, second flue, 63, third flue, 7, cooling mechanism, 71, cooling chamber, 711, gas inlet, 712, Air outlet slit, 713, stomata, 714, exhanst gas outlet, 72, liquid storage pipe, 73, bulb, 731, cylindrical tube, 732, protrusion semicircle, 74, Gas-liquid separation plate, 8, spray tube, 9, primary demister, 10, condenser, 101, spray head, 102, condensate layer, 103, reserve liquid layer, 11, Advanced demister, 12, filter device, 121, filter core, 13, hot air pipe, 14, air preheater, the 15, the 4th flue, 16, Five flues, 17, booster body, 18, cooling air unit, 19, regulating valve, 20, cooler, 30, circulating pump, 40, lime case, 50, lime white blender, 60, lime slurry supply pump, 70, dehumidifier, 701, feed inlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term " on ", "lower", "left", "right" Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is interpreted as limitation of the present invention.
Referring to Fig. 1 to Fig. 3, it includes blower 1, desulfurization that desulfurizing industrial fume denitration described in this preferred embodiment, which takes off white device, Tower 2, SCR reactor 3, deduster 4, pyrolysis installation 5, pipe-line system 6 and cooling mechanism 7, the pipe-line system 6 include first Flue 61, the second flue 62 and third flue 63, the first end of first flue 61 and described The first end of second flue 62 is connected with the blower 1 respectively, the second end of first flue 61 with The pyrolysis installation 5 is connected, and the second end of second flue 62 is connected with the SCR reactor 3, the heat Solution device 5 is connected with the SCR reactor 3 by the third flue 63, and the connection of deduster 4 is described first It include the chimney area 21 being sequentially arranged from top to bottom, dedusting mist eliminating zone 22, spray inside the desulfurizing tower 2 on flue 61 Area 23 and crystal region 24, the side wall of the desulfurizing tower 2 are equipped with the smoke inlet 25 being connected with the SCR reactor 3, and institute Smoke inlet 25 is stated between the spraying zone 23 and the crystal region 24, several is equipped in the spraying zone 23 and mutually puts down Capable spray tube 8, and the spray tube 8 is to arrange in the horizontal direction, is set gradually from bottom to top in the dedusting mist eliminating zone 22 There are primary demister 9, condenser 10 and advanced demister 11, be provided with filter device 12 at the liquid outlet of the condenser 10, And hot air pipe 13 is equipped between the advanced demister 11 and the chimney area 21, and the chimney area 21 is equipped with smoke outlet 211, the smoke outlet 211 is connected with the cooling mechanism 7, if the cooling mechanism 7 include cooling chamber 71, liquid storage pipe 72, Bulb 73 that dry root is set in the cooling chamber 71 and several be located at the horizontal side lower of each bulb 73 The gas-liquid separation plate 74 of end, the drop condensed out in flue gas flow into the liquid storage pipe 72 by the gas-liquid separation plate 74 In, the upper end of the cooling chamber 71 is provided with gas inlet 711 and air outlet slit 712, the gas inlet 711 and the bulb 73 are connected, and the side wall of the cooling chamber 71 is equipped with stomata 713, and the lower end of the cooling chamber 71 is equipped with exhanst gas outlet 714, cold Flue gas after solidifying is discharged from the exhanst gas outlet 714.
Based on the above structure, blower 1 can provide power for the flowing of flue gas, the import of blower 1 can by pipeline with External cleaner is connected, the outlet of blower 1 then can by the first flue 61, the second flue 62 respectively with Pyrolysis installation 5 is connected with SCR reactor 3, and blower 1 can get the flue gas and combustion product gases of high temperature, and respectively by high temperature Flue gas is transported in pyrolysis installation 5, combustion product gases is conveyed to SCR reactor 3, thus high-temperature flue gas is directly over the first flue gas Pipeline 61 is transported in pyrolysis installation 5, and deduster 4 is provided with and communicated on the first flue 61, and deduster 4 is located at wind Between machine 1 and pyrolysis installation 5, that flue gas first can be done dust removal process, prevent flue dust blocking pipeline or subsequent technique from setting It is standby, while also reducing flue dust and entering in pyrolysis installation 5 and prevent from blocking, the effective normal work for guaranteeing pyrolysis and spray ammonia system Make;It is provided with the first valve between blower 1 and deduster 4, the second valve is provided between deduster 4 and pyrolysis installation 5, side Just system maintenance, and the flow that high-temperature flue gas enters in pyrolysis installation 5 can be controlled.Second flue 62 by combustion product gases, Flue gas after pyrolysis is all passed into SCR reactor 3 by pyrolysis installation 5 to react, and realizes the denitration of flue gas, passes through The flue gas that SCR reactor 3 completes denitration continues through in corresponding pipeline to desulfurizing tower 2, and flue gas is from positioned at spraying zone 23 After smoke inlet 25 between crystal region 24 is passed through, the desulfurization slurry in crystal region 24 is defeated by corresponding circulating pump 30 It is sent to spraying zone 23, spraying zone 23 is provided with several jet pipes for being parallel to each other and arranging in the horizontal direction, is set on jet pipe It is equipped with nozzle, flue gas reacts to each other after entering spraying zone 23 with desulfurization slurry, and the flue gas after desulfurization continues upward through dedusting and removes Fog-zone 22 enters in chimney, and in dedusting mist eliminating zone 22, flue gas passes sequentially through primary demister 9, condenser 10 and advanced demisting Device 11, the flue gas after primary dedusting demisting handled by condenser 10 after from liquid outlet be output in filter device 12 into Row filtering, the flue gas by condensation, which is continued up, carries out further dedusting and demisting by advanced dedusting demister, then with heat The heat source that air hose 13 is passed through removes white cigarette after being mutually mixed, and finally enters in chimney, and is discharged from the smoke outlet of chimney 211.? In the present embodiment, heat source can use boiler secondary air or flue heat exchange heat, not influence the operation of system, environmental protection and energy saving, fortune Row easy maintenance, operating cost are low, high dust collection efficiency, can be by remaining particle dust, sulfur dioxide, acid, heavy metal etc. Largely condensation enters in draining pollutant component, reduces desulfurization water consumption, securely and reliably.The flue gas being discharged from chimney is further It is passed into cooling mechanism 7, air proper flow in cooling chamber 71, the stomata 713 being arranged on the side wall of cooling chamber 71 can incite somebody to action Hot-air discharge after cycle heat exchange being capable of shape when being distributed in side contacts outside the bulb 73 and air in cooling chamber 71 At countless small turbulent flows, the time of contact being able to extend between air and flue gas improves heat exchange efficiency.Do not have after desulfurizing tower 2 Have and taken off white flue gas completely reliably de- white effect can be realized by cooling mechanism 7, and by the flue gas after cooling from flue gas 714 discharge whole system of outlet, so far completes entire circulation.Flue gas after the device is processed can be realized reliable de- Sulphur denitration and Tuo Bai processing, efficiency is higher and reliable in quality, not can cause environmental pollution, and can effective investment reduction at This.
Wherein, it further includes air preheater 14 which, which takes off white device, and air preheater 14 and SCR are anti- Device 3 is answered to be connected by the 4th flue 15, deduster 4 is provided with dust-exhausting port 41, and dust-exhausting port 41 passes through the 5th flue 16 are connected with the 4th flue 15, are passed into air preheater 14 by the flue gas of denitration process and dust removal process In, it is entered in desulfurizing tower 2 again by pipeline, convenient for the flue gas for passing through 3 denitration process of SCR reactor is continued desulfurization Processing, guarantee flue gas can qualified discharge, prevent pollution environment.Supercharger is provided between pyrolysis installation 5 and SCR reactor 3 Structure 17, booster body 17 are connected on third flue 63, are greater than the high-temperature flue gas pressure extracted from pyrolysis installation 5 Pressure in SCR reactor 3, the high-temperature flue gas ingredient after pyrolysis contain the high temperature pyrolysis gas of 5% or so ammonia, are conducive to The excessively high defect of temperature for improving exhausting booster body 17, improves the service life of system, and by the high-temperature flue gas and the after pyrolysis High-temperature flue gas in two flues 62 is sufficiently mixed uniformly to be transported in SCR reactor 3 again, to carry out abundant reaction denitration, Lower loss and prevents not sufficiently reactive pernicious gas from entering in air.It should be noted that in the present embodiment, pressurization Mechanism 17 is connected using jet pump, the entrance of the nozzles with injector of jet pump with injection gas source, and the pressure of injection gas source is higher than High-temperature flue gas pressure in pipeline, the gas of injection gas source forms high-speed flow ejection after flowing through nozzles with injector, to high-temperature flue gas Injection pressurization is played, to make smoothly to flow to SCR reactor 3, and jet pump knot through the high-temperature flue gas after pyrolysis installation 5 Simple and reliable, the high temperature that can be reliably resistant to for a long time between 320 DEG C~400 DEG C of structure.And the device further includes cold wind dress 18 are set, the cooling air unit 18 is connected with first flue 61, and cooling air unit 18 is equipped with and enters for adjusting The regulating valve 19 of cold blast rate in one flue 61, cooling air unit 18 are installed on the rear of the first valve, have to adjust and open It closes, and the cooling air unit 18 is communicated in the first flue 61, conveying cold air enters in the first flue 61, passes through tune The amount for saving the cold wind that switch-mode regulation enters the first flue 61 can carry out temperature adjustment to the high-temperature flue gas in conveying pyrolysis installation 5 (can usually reconcile temperature control is 450 DEG C to 600 DEG C), prevents the flue gas of excessive temperature to be transferred in pyrolysis installation 5.In this reality It applies in example, cooling air unit 18 can be also possible to be located at deduster 4 and pyrolysis installation 5 between the first valve and deduster 4 Between.
In addition, condenser 10 include it is upper and under the spray head 101, condensate layer 102 and at least two layers of the reserve liquid layer that are sequentially arranged 103, several reservoirs, and the reservoir interlaced arrangement of neighbouring reserve liquid layer 103 are evenly equipped on reserve liquid layer 103, and each Reservoir is connected with filter device 12 respectively, and the flue gas entered in desulfurizing tower 2 from smoke inlet 25 passes through preliminary dust removal demisting After continue up and the water spray that is condensed, dust meets water condensation and grows up and be adsorbed on condensate layer 102, then falls into liquid dish simultaneously It is transported in filter device 12 and filters, filter core 121 is equipped with inside filter device 12, the exit of filter device 12 is communicated with cooling The water outlet of device 20, cooler 20 is connected through condenser pipe spray head 101, and circulating pump 30 is provided on condenser pipe, by filtering The filtered condensed water of device 12 can be passed into cooler 20 in order to recycle, save the cost.In reservoir It added with pH adjusting agent, is flowed to after mixing in filter device 12, because the flue gas after desulfurization is recycled in acidity for guarantee cooling water It uses, need to add pH adjusting agent (soda), adjust pH to neutrality.It further includes successively being linked in sequence that the desulphurization denitration, which takes off white device, Lime case 4, lime white blender 50 and lime slurry supply pump 60, lime case 4 are connected with the outlet of chimney, and lime slurry supply pump 60 connects The lower part of desulfurizing tower 2 is passed through, dehumidifier 70 is provided between desulfurizing tower 2 and lime case 4, dehumidifier 70 is connected with the outlet of chimney It is logical, and feed inlet 701 is provided on dehumidifier 70, dehumidifier 70 is desulfurization fume dehumidifying heating device, the flue gas of dehumidifier 70 Import 711 is connected by the chimney breast of pipeline and desulfuration absorbing tower, the outlet of dehumidifier 70 by pipeline and chimney bottom into Mouth connection, upper part have feed inlet 701, to facilitate constantly investment quick lime, lower part white lime discharge port to pass through pipeline and lime The connection of 4 upper feed inlet 701 of case;70 bottom of dehumidifier is in back taper, and discharge port is set to the bottom except warm device, and connects lime Case 4, then white lime drops down onto discharge port discharge along inner wall downslide after falling to 70 bottom of dehumidifier.Ripe stone in lime case 4 Ash enter lime white blender 50 in water after mixing evenly, be sent to desulfuration absorbing tower bottom through lime slurry supply pump 60 to carry out Circulated sprinkling;Wherein, the white lime in lime case 4 is constantly to generate in dehumidifier 70, therefore the white lime can be remaining and be made Multiple use, white lime a part in lime case 4 is admitted in lime white blender 50 to be stirred with water, white lime and water Lime slurry is formed by uniform stirring, then enters the bottom of desulfuration absorbing tower by pipeline via lime slurry supply pump 60, for cigarette Desulfurization is reused, and slurry circulating pump 30 extracts lime slurry out from desulfuration absorbing tower lower part, is sent into desulfurizing tower 2 by pipeline Spray tube 8, then spray droplet from spray tube 8 and absorb sulfur dioxide in flue gas, extra lime slurry falls into tower, again 8 circulated sprinkling of spray tube is sent by slurry circulating pump 30;Another part is sent to external storage and transportation apparatus, with for building materials, environmental protection, It is industrial to use, it is widely used.
Further, gas-liquid separation plate 74 is circular slab, is equipped with hinge on the central axis of circular slab, so that circular slab One half-circle area can be movable, another half-circle area is fixed, when having water beside gas-liquid separation plate 74, a semicircle area Domain is opened, and after water passes through from there, movable plate is automatically closed at once immediately, due to being negative pressuren zone, flue gas inside bulb 73 It can not be entered in liquid storage pipe 72 by gas-liquid separation plate 74.Each bulb 73 is U-shaped to be distributed in cooling chamber 71, and bulb 73 Angle with horizontal plane is 15 °, and 731 spacing of cylindrical tube of the adjacent two rows bulb 73 is 0.5m~2m, the protrusion of bulb 73 The diameter of semicircle 732 is 0.5m~1m, and the spacing between the center of circle of the protrusion semicircle 732 per two adjacent bulbs 73 is 0.1m ~0.3m, the internal diameter for connecting the cylindrical tube 731 of the protrusion semicircle 732 of two adjacent bulbs 73 is 0.1m~0.5m, desulfurization system The vapor supersaturation flue gas come out in system enters in bulb 73 from gas inlet 711, and air passes through air blower 1 from stomata 713 Into in cooling chamber 71, the flue gas in bulb 73 is thermally contacted and is handed over by 73 inside and outside wall of bulb with the air in cooling chamber 71 It changes, due to the special designing of bulb 73, so that without any dead angle when flue gas flows in bulb 73, air flows in cooling chamber 71 Countless small turbulent flows are formed when dynamic, to accelerate rate of heat exchange.When flue-gas temperature in bulb 73 reduces, carried secretly in flue gas Water condensation is got off, and after condensed water first passes through gas-liquid separation plate 74, then in liquid storage pipe 72 of entering, the water in bulb 73 is not only condensation Water, there are also containing wet flue gas in bulb 73 by when the moisture content that is thrown away due to centrifugal action, and there are also on a small quantity due to bulb The water that flue gas pressures come out with 73 change in shape of bulb in 73, condensed water passes through outside 72 discharge system of liquid storage pipe, after cooling Flue gas be discharged by exhanst gas outlet 714, the air by heat exchange so far completes one from 712 discharge system of air outlet slit Whole circulation.
Flue gas desulfurization and denitrification of the invention takes off white device during carrying out denitration process to flue gas, and flue gas passes through pyrolysis It is entered after device 5 in SCR reactor 3, realizes denitration, flue gas is introduced pyrolysis by the first flue 61 in blower 1 After in device 5, SCR reaction is evenly supplied to after the high-temperature flue gas that the high-temperature flue gas of pyrolysis and blower 1 convey is sufficiently mixed again In device 3, to carry out sufficient denitration reaction, reduces and be lost and prevent the not sufficiently reactive flue gas containing nitrogen oxides from entering In subsequent processing reaction, subsequent processing reaction is influenced, or even pernicious gas is drained into atmosphere again.And pass through denitration When the flue gas of processing enters progress desulfurization in desulfurizing tower 2, water capacity is still higher in the flue gas after desulfurization, so need phase The flue gas answered is passed through again to carry out taking off white processing in cooling mechanism 7, in the cooling chamber 71 for being provided with multiple groups bulb 73, utilizes sky Gas carries out condensation cooling to hot fume, and the design of bulb 73 is so that the heat-transfer effect of system greatly increases, bulb 73 of the invention Very flourishing turbulent flow can be generated under very low flow velocity, so that being not easy to form nucleus and the accumulation of dirty layer in the closing of bulb 73 Foulant, to guarantee that bulb 73 is less scaling, and the arrangement of bulb 73 in cooling chamber 71 can be improved entire cooling mechanism 7 Heat exchange efficiency, to thoroughly prevent the generation of chimney discharged gas fume phenomenon.2 structure of desulfurizing tower design of the invention is very simple It is single, and desulfurization effect is good, and can pre-process to white cigarette, protects environment, reduces pollution, reduces investment outlay.
It should be understood that various information are described in the present invention using term " first ", " second " etc., but these information It should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the present invention In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as " first " information.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principle of the present invention, several improvement and deformations can also be made, these improvement and deformations are also considered as Protection scope of the present invention.

Claims (10)

1. a kind of desulfurizing industrial fume denitration takes off white device, it is characterised in that: including blower, desulfurizing tower, SCR reactor, dedusting Device, pyrolysis installation, pipe-line system and cooling mechanism;
The pipe-line system includes the first flue, the second flue and third flue, first flue First end and the first end of second flue be connected respectively with the blower, first flue The second end is connected with the pyrolysis installation, and the second end of second flue is connected with the SCR reactor, The pyrolysis installation is connected with the SCR reactor by the third flue;
The deduster connection is on first flue;
It include chimney area, dedusting mist eliminating zone, spraying zone and the crystal region being sequentially arranged from top to bottom inside the desulfurizing tower, it is described The side wall of desulfurizing tower is equipped with the smoke inlet being connected with the SCR reactor, and the smoke inlet is located at the spray Between area and the crystal region;
Several spray tubes being parallel to each other are equipped in the spraying zone, and the spray tube is to arrange in the horizontal direction;
Primary demister, condenser and advanced demister, the condensation are disposed in the dedusting mist eliminating zone from bottom to top It is provided with filter device at the liquid outlet of device, and is equipped with hot air pipe between the advanced demister and the chimney area, and described Chimney area is equipped with smoke outlet, and the smoke outlet is connected with the cooling mechanism;
The cooling mechanism include cooling chamber, liquid storage pipe, several be set to the indoor bulb of the cooling and several points Not Wei Yu each bulb horizontal side lower end gas-liquid separation plate, the drop condensed out in flue gas passes through the gas Liquid separating plate flows into the liquid storage pipe;
The upper end of the cooling chamber is provided with gas inlet and air outlet slit, and the gas inlet is connected with the bulb, institute The side wall for stating cooling chamber is equipped with stomata, and the lower end of the cooling chamber is equipped with exhanst gas outlet, and condensed flue gas is from the flue gas Outlet discharge.
2. desulfurizing industrial fume denitration according to claim 1 takes off white device, it is characterised in that: further include air preheat Device, the air preheater and the SCR reactor are connected by the 4th flue;
The deduster is provided with dust-exhausting port, and the dust-exhausting port is connected by the 5th flue with the 4th flue It is logical.
3. desulfurizing industrial fume denitration according to claim 1 takes off white device, it is characterised in that: the pyrolysis installation and institute It states and is provided with booster body between SCR reactor, the booster body connection is on the third flue.
4. desulfurizing industrial fume denitration according to claim 3 takes off white device, it is characterised in that: it further include cooling air unit, The cooling air unit is connected with first flue, and the cooling air unit is equipped with and enters the first fume pipe for adjusting The regulating valve of cold blast rate in road.
5. desulfurizing industrial fume denitration according to any one of claims 1 to 4 takes off white device, it is characterised in that: described cold Condenser include it is upper and under the spray head, condensate layer and at least two layers of the reserve liquid layer that are sequentially arranged, be evenly equipped with several on the reserve liquid layer Reservoir, and the reservoir interlaced arrangement of the neighbouring reserve liquid layer, and each reservoir is filled with the filtering respectively It sets and is connected.
6. desulfurizing industrial fume denitration according to claim 5 takes off white device, it is characterised in that: inside the filter device Equipped with filter core, the exit of the filter device is communicated with cooler, and the water outlet of the cooler is through condenser pipe and the spray Head is connected, and is provided with circulating pump on the condenser pipe.
7. requiring 1 to 4 described in any item desulfurizing industrial fume denitrations to take off white device according to power, it is characterised in that: further include according to Lime case, lime white blender and the lime slurry supply pump of secondary sequential connection, the lime case are connected with the outlet of the chimney, The lime slurry supply pump is connected to the lower part of the desulfurizing tower.
8. desulfurizing industrial fume denitration according to claim 7 takes off white device, it is characterised in that: the desulfurizing tower and described Dehumidifier is provided between lime case, the dehumidifier is connected with the outlet of the chimney, and is provided on the dehumidifier Feed inlet.
9. desulfurizing industrial fume denitration according to claim 1 takes off white device, it is characterised in that: the gas-liquid separation plate is Circular slab is equipped with hinge on the central axis of the circular slab, enables the half-circle area activity of the circular slab, separately An outer half-circle area is fixed.
10. desulfurizing industrial fume denitration according to claim 9 takes off white device, it is characterised in that: each bulb is U-shaped It is distributed in the cooling chamber, and the angle of the bulb and horizontal plane is 15 °, the cylinder tube spacing of the adjacent two rows bulb For 0.5m~2m;
Half diameter of a circle of protrusion of the bulb is 0.5m~1m, between the center of circle of the protrusion semicircle per two adjacent bulbs Spacing is 0.1m~0.3m, and the internal diameter for connecting the cylindrical tube of the protrusion semicircle of two adjacent bulbs is 0.1m~0.5m.
CN201910240688.3A 2019-03-27 2019-03-27 A kind of desulfurizing industrial fume denitration takes off white device Pending CN109806744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910240688.3A CN109806744A (en) 2019-03-27 2019-03-27 A kind of desulfurizing industrial fume denitration takes off white device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910240688.3A CN109806744A (en) 2019-03-27 2019-03-27 A kind of desulfurizing industrial fume denitration takes off white device

Publications (1)

Publication Number Publication Date
CN109806744A true CN109806744A (en) 2019-05-28

Family

ID=66610704

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910240688.3A Pending CN109806744A (en) 2019-03-27 2019-03-27 A kind of desulfurizing industrial fume denitration takes off white device

Country Status (1)

Country Link
CN (1) CN109806744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110732210A (en) * 2019-09-16 2020-01-31 佛山市顺德区东波环保设备有限公司 kinds of desulfurization denitration environmental protection flue gas processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110732210A (en) * 2019-09-16 2020-01-31 佛山市顺德区东波环保设备有限公司 kinds of desulfurization denitration environmental protection flue gas processing system

Similar Documents

Publication Publication Date Title
CN106621754A (en) Garbage incineration fume ultralow emission purifying system
CN105080332B (en) Agglomerates of sintered pellets reclamation system and process
CN105698550B (en) The sintering smoke purifying system and method for a kind of energy-saving and emission-reduction
CN108636098A (en) A kind of the minimum discharge purifier and its method of burning city domestic garbage flue gas
CN106215563A (en) Garbage-incineration smoke purifying processing system
CN103657367B (en) The desulfurization of a kind of list tower calcium method turns device and the technique of the double-tower type ammonia process of desulfurization
CN101907406A (en) Flue gas utilization and treatment system for industrial stoves
CN109772071A (en) White plume based on upper spray upper air spray column eliminates system
CN108273370A (en) A kind of combination flue gas takes off white wet type fume sweetening device and its application method
CN105879596A (en) Absorption type system and absorption type method for dehumidifying desulfurized flue gas, and coal-fired enterprise
CN109806744A (en) A kind of desulfurizing industrial fume denitration takes off white device
CN101757826A (en) Swirling mist dust remover
CN109731472A (en) Power economized boiler flue gas purification system and method
CN206799197U (en) A kind of undersaturation flue gas condensing crystallizing desulfurization wastewater zero-discharge treatment system
CN108525869A (en) A kind of cyclone of adjustable spinning disk angle and desulfurizing tower using the cyclone
CN208275227U (en) A kind of combination flue gas takes off white wet type fume sweetening device
CN208406557U (en) A kind of industrial smoke processing system
CN112337275A (en) Sintering flue gas desulfurization and denitrification method and device
WO2019228547A1 (en) Industrial flue gas treatment method and industrial flue gas treatment system
CN107300188A (en) A kind of smoke comprehensive energy-saving and emission-reduction system for taking into account low-temperature corrosion and UTILIZATION OF VESIDUAL HEAT IN
CN110207143A (en) Flue gas condensing takes off white system and its control method
CN110772915A (en) Sintering flue gas SCR denitration and whitening system and process
CN110075681A (en) A kind of dry desulfurization denitrification apparatus and method suitable for cement kiln flue gas
CN209752583U (en) Industrial flue gas desulfurization, denitrification and whitening device
CN109078468A (en) A kind of high-efficiency ceramic flue gas processing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination