CN113069910A - Flue gas desulfurization, denitrification and demercuration integrated equipment for industrial boiler - Google Patents

Flue gas desulfurization, denitrification and demercuration integrated equipment for industrial boiler Download PDF

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Publication number
CN113069910A
CN113069910A CN202110222676.5A CN202110222676A CN113069910A CN 113069910 A CN113069910 A CN 113069910A CN 202110222676 A CN202110222676 A CN 202110222676A CN 113069910 A CN113069910 A CN 113069910A
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China
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desulfurization
box
flue gas
demercuration
tank
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CN202110222676.5A
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Chinese (zh)
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罗俊杰
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Mihe Nanjing Electronic Technology Co ltd
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Mihe Nanjing Electronic Technology Co ltd
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Priority to CN202110222676.5A priority Critical patent/CN113069910A/en
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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
    • B01D53/80—Semi-solid phase processes, i.e. by using slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • 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
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • 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
    • B01D53/502—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 solution or suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/04—Regenerating the washing fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • 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

Abstract

The invention discloses flue gas desulfurization, denitrification and demercuration integrated equipment for an industrial boiler, which comprises a desulfurization tank, a feeding mechanism, a settling mechanism and a dedusting mechanism, wherein a flue gas input pipe communicated with the inside of the flue gas input pipe is arranged at the bottom of one end wall of the desulfurization tank, the feeding mechanism is arranged at the top end of the desulfurization tank, the top of the end wall of the desulfurization tank far away from the flue gas input pipe is sequentially connected with a denitrification tank and a demercuration tank through a flue pipe, one end of the desulfurization tank far away from the demercuration tank is connected with a second water storage tank, one end of the second water storage tank far away from the demercuration tank is connected with a water purification tank, the settling tank and a chimney communicated with the inside of the second water storage tank are sequentially arranged on the top end surface of the second water storage tank, the settling mechanism is. This industrial boiler flue gas desulfurization denitration demercuration integration equipment, rational in infrastructure, easily realize, have good flue gas treatment effect, and improved the utilization ratio of absorbent, can extensively promote.

Description

Flue gas desulfurization, denitrification and demercuration integrated equipment for industrial boiler
Technical Field
The invention belongs to the technical field of flue gas treatment, and particularly relates to integrated equipment for desulfurization, denitrification and demercuration of flue gas of an industrial boiler.
Background
The flue gas is a mixture of gas and smoke dust, and is a main reason for polluting atmosphere of residential areas, the components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen dioxide, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke dust comprises ash content, coal particles, oil drops, high-temperature cracking products and the like of fuel; therefore, the pollution of the smoke to the environment is the composite pollution of various poisons, the hazard of the smoke to the human body is related to the size of particles, and the most harmful to the human body is the flying dust with the diameter less than 10 microns, particularly the flying dust with the diameter of 1 to 2.5 microns is the greatest.
The limestone-gypsum desulfurization process is the most widely applied desulfurization technology in the world. The working principle of the method is that limestone powder is added with water to prepare slurry which is used as an absorbent and pumped into an absorption tower to be fully contacted and mixed with flue gas, sulfur dioxide in the flue gas, calcium carbonate in the slurry and air blown from the lower part of the tower are subjected to oxidation reaction to generate calcium sulfate, and the calcium sulfate is crystallized to form dihydrate gypsum after reaching a certain saturation degree.
However, in the use process of the existing integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, the absorbent for desulfurization is difficult to control whether the reaction is complete, the waste of raw materials is caused if the reactant is changed too early, the flue gas treatment cost is increased, the content of sulfur in the discharged flue gas exceeds the standard if the reactant is changed too late, and meanwhile, the flue gas treatment effect of the existing integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler is general, so that further improvement is needed.
Disclosure of Invention
The invention aims to provide integrated equipment for desulfurization, denitrification and demercuration of flue gas of an industrial boiler, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an integrated device for desulfurization, denitrification and demercuration of industrial boiler flue gas, which comprises a desulfurization box, a feeding mechanism, a settling mechanism and a dust removal mechanism, the bottom of one end wall of the desulfurization box is provided with a flue gas input pipe communicated with the interior of the desulfurization box, the top end of the desulfurization box is provided with a feeding mechanism, the top of the end wall of the desulfurization box far away from the flue gas input pipe is sequentially connected with a denitration box and a demercuration box through a flue pipe, one end of the mercury removal tank far away from the desulfurization tank is connected with a second water storage tank, one end of the second water storage tank far away from the mercury removal tank is connected with a purified water tank, a settling tank and a chimney which are communicated with the inside of the second water storage tank are sequentially arranged on the top end surface of the second water storage tank, a sedimentation mechanism is arranged in the sedimentation box, a dust removal mechanism is arranged at the bottom end in the chimney, a heating net horizontally fixed on the inner wall of the chimney is arranged above the dust removal mechanism, and a sulfur dioxide detector is arranged at the top end of the dust removal mechanism;
the feeding mechanism comprises a premixing box, a limestone powder storage tank and a first water storage tank, the premixing box is communicated with the inside of the desulfurization box through a smoke tube provided with a third electromagnetic valve, two sides of the top end surface of the premixing box are respectively communicated with the limestone powder storage tank and the first water storage tank through smoke tubes provided with a first electromagnetic valve and a second electromagnetic valve, a stirring paddle is horizontally and rotatably arranged in the premixing box, and a third motor in driving connection with the stirring paddle is fixedly arranged on one side wall of the premixing box;
the sedimentation mechanism comprises two symmetrical spray plates which are communicated with the purified water tank, the two spray plates are vertically and rotatably arranged on two inner side walls of the sedimentation tank adjacent to the second water storage tank respectively, a plurality of atomizing spray heads are arranged on one end face of each of the two spray plates in opposite directions, and second motors which are in driving connection with the spray plates are fixedly arranged on the outer walls of the two sides of the sedimentation tank;
dust removal mechanism includes the fixed frame of horizontal installation in the chimney inside, the inside bottom level of fixed frame is fixed with the connecting plate between two parties, install the filter screen between connecting plate and the fixed frame inner wall, the scraper blade is installed in the horizontal rotation on the connecting plate bottom face, scraper blade and filter screen slip butt.
Preferably, the first bevel gear fixedly connected with the scraper blade is installed on the top end face of the connecting plate in a horizontally rotating mode, a second bevel gear is vertically meshed with one side of the first bevel gear, a driving rod is horizontally fixed to one end, far away from the first bevel gear, of the second bevel gear, and one end, far away from the second bevel gear, of the driving rod penetrates through the side wall of the chimney and is in driving connection with a first motor fixed on the outer side wall of the chimney.
Preferably, one side that the water purification incasement portion is close to the second water storage tank is vertical installs the polylith filter, the water purification incasement portion is kept away from one side bottom of second water storage tank and is installed and spray the booster pump that the board is connected.
Preferably, the two guide plates which are staggered with each other are obliquely fixed on two side walls in the desulfurization box, and a vent pipe communicated with the inside of the desulfurization box is arranged on the end face of the bottom of the desulfurization box.
Preferably, desulfurization case diapire one side is equipped with the gypsum discharge port with the inside intercommunication of desulfurization case, just the inside diapire of desulfurization case sets up towards the one side slope of gypsum discharge port.
Preferably, a circulating water pump communicated with the inside of the desulfurization box is installed on one end wall of the desulfurization box.
Preferably, the positions on the side wall of the chimney, which correspond to the dust removal mechanism and the heating net, are provided with an access door, and the access door is fastened with the chimney through a mechanical lock.
Preferably, the adsorption box is all installed to the both sides of scraper blade bottom end face, a plurality of screw holes that are the annular and distribute are seted up on fixed frame lateral wall top.
The invention has the technical effects and advantages that: according to the integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, the sulfur content of the flue gas discharged from a chimney can be monitored in real time through the sulfur dioxide detector, when the sulfur content monitoring exceeds the standard, under the cooperation of the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, the pre-mixing tank, the limestone powder storage tank and the first water storage tank can be used for automatically supplementing an absorbent made of limestone powder and water into the desulfurization tank, so that the normal operation of the equipment is ensured, meanwhile, the absorbent in the desulfurization tank can be fully reacted, and the utilization rate of the absorbent is effectively improved; by arranging the settling mechanism in the settling tank, water mist is sprayed to the flue gas subjected to desulfurization, denitrification and demercuration in a spiral manner, so that the water mist can be fully contacted with the flue gas, and then the water mist is adsorbed and fused with residual particles in the flue gas and settled, thereby improving the flue gas treatment effect; and finally, dedusting the flue gas through the dedusting mechanism, and scraping and dropping impurities filtered out by the filter screen in the dedusting mechanism into a second water storage tank for collection along with the continuous rotation of the scraper. This industrial boiler flue gas desulfurization denitration demercuration integration equipment, rational in infrastructure, easily realize, have good flue gas treatment effect, and improved the utilization ratio of absorbent, can extensively promote.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural diagram of a dust removing mechanism of the present invention;
FIG. 4 is a schematic view of the bottom end face structure of the fixed frame of the present invention;
FIG. 5 is a schematic structural view of a settling mechanism of the present invention;
fig. 6 is a schematic structural diagram of the feeding mechanism of the present invention.
In the figure: 1 flue gas input pipe, 2 desulfurization box, 3 feeding mechanism, 4 premixing box, 5 limestone powder storage tank, 6 first water storage tank, 7 vent pipe, 8 gypsum discharge port, 9 denitration box, 10 demercuration box, 11 second water storage tank, 12 settling box, 13 access door, 14 chimney, 15 sulfur dioxide detector, 16 purified water tank, 17 deflector, 18 settling mechanism, 19 dust removal mechanism, 20 heating net, 21 filter plate, 22 fixing frame, 23 filter screen, 24 connecting plate, 25 threaded hole, 26 first bevel gear, 27 second bevel gear, 28 driving rod, 29 first motor, 30 scraper blade, 31 adsorption box, 32 spray plate, 33 atomizing nozzle, 34 second motor, 35 first electromagnetic valve, 36 second electromagnetic valve, 37 third electromagnetic valve, 38 third motor, 39 stirring paddle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides integrated equipment for desulfurization, denitrification and demercuration of flue gas of an industrial boiler, which comprises a desulfurization tank 2, a feeding mechanism 3, a settling mechanism 18 and a dust removal mechanism 19, wherein the bottom of one end wall of the desulfurization tank 2 is provided with a flue gas input pipe 1 communicated with the inside of the desulfurization tank 2, flue gas generated in the boiler is input into the desulfurization tank 2 through the flue gas input pipe 1, the top end of the desulfurization tank 2 is provided with the feeding mechanism 3, the top of the end wall of the desulfurization tank 2, which is far away from the flue gas input pipe 1, is sequentially connected with a denitrification tank 9 and a demercuration tank 10 through a flue pipe, the denitrification tank 9 and the demercuration tank 10 are respectively and internally filled with activated carbon for denitrification and demercuration, one end of the demercuration tank 10, which is far away from the desulfurization tank 2, is connected with a second water storage tank 11, one end of the second water storage tank 11, which is far away from the demercuration tank 10, is connected with a water purification tank 16, and a settling tank 12 and, a settling mechanism 18 is arranged in the settling tank 12, a dust removal mechanism 19 is arranged at the bottom end in the chimney 14, a heating net 20 horizontally fixed on the inner wall of the chimney 14 is arranged above the dust removal mechanism 19, a sulfur dioxide detector 15 is arranged at the top end of the dust removal mechanism 19, and the sulfur dioxide detector 15 is existing instrument equipment and is used for monitoring the content of sulfur dioxide in the discharged flue gas in real time;
the feeding mechanism 3 comprises a premixing box 4, a limestone powder storage tank 5 and a first water storage tank 6, the premixing box 4 is communicated with the inside of the desulfurization box 2 through a smoke pipe provided with a third electromagnetic valve 37, two sides of the top end surface of the premixing box 4 are respectively communicated with the limestone powder storage tank 5 and the first water storage tank 6 through smoke pipes provided with a first electromagnetic valve 35 and a second electromagnetic valve 36, a stirring paddle 39 is horizontally and rotatably arranged in the premixing box 4, a third motor 38 in driving connection with the stirring paddle 39 is fixedly arranged on one side wall of the premixing box 4, when the sulfur dioxide detector 15 detects that the sulfur content in the discharged flue gas exceeds the standard, the absorbent in the desulfurization box 2 completely reacts, at the moment, the first electromagnetic valve 35 and the second electromagnetic valve 36 are opened, and the limestone powder and the water in the limestone powder storage tank 5 and the first water storage tank 6 fall into the premixing box 4 according to a certain proportion, the third motor 38 is started to drive the stirring paddle 39 to rotate, the sulfur dioxide absorbent is prepared inside the premixing box 4, then the gypsum slurry inside the desulfurization box 2 is discharged from the gypsum discharge port 8, and finally the third electromagnetic valve 37 is started to inject the absorbent inside the premixing box 4 into the desulfurization box 2, so that the automatic filling of the absorbent is realized, and the absorption rate of the absorbent can be improved by the mode;
the sedimentation mechanism 18 comprises two symmetrical spraying plates 32 communicated with the purified water tank 16, the two spraying plates 32 are vertically and rotatably arranged on two inner side walls of the sedimentation tank 12 adjacent to the second water storage tank 11 respectively, a plurality of atomizing nozzles 33 are arranged on one end face of each of the two spraying plates 32 in the opposite direction, second motors 34 in driving connection with the spraying plates 32 are fixedly arranged on the outer walls of the two sides of the sedimentation tank 12 respectively, the second motors 34 are started to drive the two spraying plates 32 to rotate, so that the threaded spraying of water mist is realized, the water mist is fully contacted with the flue gas, the residual particles in the flue gas are adsorbed and fused and then are settled into the second water storage tank 11, and the flue gas treatment effect is improved;
dust removal mechanism 19 includes horizontal installation at the inside fixed frame 22 of chimney 14, the inside bottom level of fixed frame 22 is fixed with connecting plate 24 between two parties, install filter screen 23 between connecting plate 24 and the fixed frame 22 inner wall, the horizontal rotation is installed and is scraped scraper blade 30 on the 24 bottom faces of connecting plate, scraper blade 30 slides the butt with filter screen 23, removes dust to the flue gas through filter screen 23, and strikes off the impurity that filter screen 23 filtered out in with dust removal mechanism 19 through the continuous rotation of scraper blade 30 and drops to collection in second water storage box 11.
Specifically, a first bevel gear 26 fixedly connected with the scraper 30 is horizontally and rotatably mounted on the top end face of the connecting plate 24, a second bevel gear 27 is vertically engaged with one side of the first bevel gear 26, a driving rod 28 is horizontally fixed to one end, away from the first bevel gear 26, of the second bevel gear 27, one end, away from the second bevel gear 27, of the driving rod 28 penetrates through the side wall of the chimney 14 and is in driving connection with a first motor 29 fixed on the outer side wall of the chimney 14, the first motor 29 is started, and the scraper 30 can be driven to rotate continuously by the driving of the driving rod 28, the first bevel gear 26 and the second bevel gear 27.
Specifically, inside one side that is close to second water storage tank 11 of water purification tank 16 is vertical installs polylith filter 21, 16 inside one side bottom of keeping away from second water storage tank 11 of water purification tank is installed and is sprayed the booster pump that board 32 is connected, and inside water solution of second water storage tank 11 passes through the water pump and carries to water purification tank 16, through filter 21 filter purification after again by the water pump go into spray board 32 to realize the cyclic utilization of water.
It is specific, be fixed with two deflector 17 that misplace each other on 2 inside both sides walls slopes of desulfurization case for the extension flue gas makes the sulfur dioxide reaction in the flue gas more thorough at 2 inside journey routes of desulfurization case, be equipped with on 2 bottom end faces of desulfurization case with 2 inside intercommunication's of desulfurization case breather pipe 7, breather pipe 7 is connected with external gas transmission equipment, is used for giving 2 inside absorbents of desulfurization case and the required air of sulfur dioxide reaction.
Specifically, 2 diapire one side of desulfurization case is equipped with the gypsum discharge port 8 with 2 inside intercommunications of desulfurization case, just 2 inside diapalls of desulfurization case set up towards the one side slope of gypsum discharge port 8 to the emission of gypsum thick liquid is convenient for.
Specifically, a circulating water pump communicated with the inside of the desulfurization box 2 is installed on one end wall of the desulfurization box 2, so that the absorbent is repeatedly circulated and contacted with the flue gas, and the utilization rate of the absorbent is improved.
Specifically, the positions on the side wall of the chimney 14 corresponding to the dust removal mechanism 19 and the heating net 20 are provided with the access door 13, and the access door 13 is buckled with the chimney 14 through a mechanical lock so as to conveniently overhaul the dust removal mechanism 19 and the heating net 20.
Specifically, adsorption box 31 is all installed to the both sides of scraper blade 30 bottom end face for adsorb remaining harmful substance in the flue gas, a plurality of screw holes 25 that are the annular and distribute are seted up on fixed frame 22 lateral wall top, so that fixed frame 22's dismouting.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides an industrial boiler flue gas desulfurization denitration demercuration integration equipment, includes desulfurization case (2), feed mechanism (3), subsides mechanism (18) and dust removal mechanism (19), its characterized in that: the bottom of one end wall of the desulfurization box (2) is provided with a flue gas input pipe (1) communicated with the inside of the desulfurization box (2), the top end of the desulfurization box (2) is provided with a feeding mechanism (3), the top of the end wall of the desulfurization box (2) far away from the flue gas input pipe (1) is sequentially connected with a denitration box (9) and a demercuration box (10) through a smoke pipe, one end of the demercuration box (10) far away from the desulfurization box (2) is connected with a second water storage box (11), one end of the second water storage box (11) far away from the demercuration box (10) is connected with a water purification box (16), the top end surface of the second water storage box (11) is sequentially provided with a sedimentation box (12) and a chimney (14) communicated with the inside of the second water storage box (11), the sedimentation box (12) is internally provided with a sedimentation mechanism (18), the bottom inside the chimney (14) is provided with a dust removal mechanism (19), and a heating net (20) horizontally fixed on the, a sulfur dioxide detector (15) is arranged at the top end of the dust removal mechanism (19);
the feeding mechanism (3) comprises a premixing box (4), a limestone powder storage tank (5) and a first water storage tank (6), the premixing box (4) is communicated with the inside of the desulfurization box (2) through a smoke tube provided with a third electromagnetic valve (37), two sides of the top end face of the premixing box (4) are respectively communicated with the limestone powder storage tank (5) and the first water storage tank (6) through smoke tubes provided with a first electromagnetic valve (35) and a second electromagnetic valve (36), a stirring paddle (39) is horizontally and rotatably arranged in the premixing box (4), and a third motor (38) in driving connection with the stirring paddle (39) is fixedly arranged on one side wall of the premixing box (4);
the sedimentation mechanism (18) comprises two spraying plates (32) which are symmetrical to each other and communicated with the water purification tank (16), the two spraying plates (32) are respectively vertically and rotatably arranged on two inner side walls of the sedimentation tank (12) adjacent to the second water storage tank (11), a plurality of atomizing spray heads (33) are arranged on one end face of each of the two spraying plates (32) in the opposite direction, and second motors (34) which are in driving connection with the spraying plates (32) are fixedly arranged on the outer walls of the two sides of the sedimentation tank (12);
dust removal mechanism (19) include horizontal installation at the inside fixed frame (22) of chimney (14), the inside bottom level of fixed frame (22) is fixed with connecting plate (24) between two parties, install filter screen (23) between connecting plate (24) and fixed frame (22) inner wall, horizontal rotation installs scraper blade (30) on connecting plate (24) bottom face, scraper blade (30) and filter screen (23) slip butt.
2. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: the horizontal rotation is installed on connecting plate (24) top end face and is installed first conical gear (26) with scraper blade (30) fixed connection, the vertical meshing of one side of first conical gear (26) has second conical gear (27), the one end level that first conical gear (26) were kept away from in second conical gear (27) is fixed with actuating lever (28), chimney (14) lateral wall is run through and with first motor (29) drive connection fixed on chimney (14) lateral wall to the one end that second conical gear (27) were kept away from in actuating lever (28).
3. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: a plurality of filter plates (21) are vertically arranged on one side, close to the second water storage tank (11), inside the water purification tank (16), and a booster water pump connected with the spray plate (32) is arranged at the bottom end of one side, far away from the second water storage tank (11), inside the water purification tank (16).
4. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: the utility model discloses a desulfurization case, including desulfurization case (2), the slope of inside both sides wall of desulfurization case (2) is fixed with deflector (17) that two dislocation each other on the wall, be equipped with on the bottom surface of desulfurization case (2) with inside breather pipe (7) of intercommunication of desulfurization case (2).
5. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: desulfurization case (2) diapire one side is equipped with gypsum discharge port (8) with the inside intercommunication of desulfurization case (2), just inside diapire of desulfurization case (2) sets up towards the one side slope of gypsum discharge port (8).
6. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: and a circulating water pump communicated with the inside of the desulfurization box (2) is arranged on one end wall of the desulfurization box (2).
7. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: and an access door (13) is arranged at the position on the side wall of the chimney (14) corresponding to the dust removal mechanism (19) and the heating net (20), and the access door (13) is buckled with the chimney (14) through a mechanical lock.
8. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claim 1, is characterized in that: the both sides of scraper blade (30) bottom face all install and adsorb box (31), a plurality of screw holes (25) that are the annular and distribute are seted up on fixed frame (22) lateral wall top.
9. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler according to the claims 1 to 8, characterized in that: the both sides of scraper blade (30) bottom face all install and adsorb box (31), a plurality of screw holes (25) that are the annular and distribute are seted up on fixed frame (22) lateral wall top.
10. The integrated equipment for desulfurization, denitrification and demercuration of the flue gas of the industrial boiler, according to claims 1 to 7, is characterized in that: the both sides of scraper blade (30) bottom face all install and adsorb box (31), a plurality of screw holes (25) that are the annular and distribute are seted up on fixed frame (22) lateral wall top.
CN202110222676.5A 2021-03-01 2021-03-01 Flue gas desulfurization, denitrification and demercuration integrated equipment for industrial boiler Withdrawn CN113069910A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114247284A (en) * 2021-12-21 2022-03-29 新疆金禾山能源科技有限公司 Energy-concerving and environment-protective type flue gas desulfurization equipment
CN114307462A (en) * 2021-12-02 2022-04-12 张瑶 Coking flue gas and ammonia-containing wastewater integrated treatment system
CN114602309A (en) * 2022-03-18 2022-06-10 安徽紫朔环境工程技术有限公司 Novel cement plant denitration dust removal pilot scale device
CN115121114A (en) * 2022-05-07 2022-09-30 华能山东发电有限公司众泰电厂 Boiler denitration inlet flue structure capable of sufficiently promoting mixing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114307462A (en) * 2021-12-02 2022-04-12 张瑶 Coking flue gas and ammonia-containing wastewater integrated treatment system
CN114307462B (en) * 2021-12-02 2023-12-15 鄂托克旗红缨煤焦化有限责任公司 Coking flue gas and ammonia-containing wastewater integrated treatment system
CN114247284A (en) * 2021-12-21 2022-03-29 新疆金禾山能源科技有限公司 Energy-concerving and environment-protective type flue gas desulfurization equipment
CN114247284B (en) * 2021-12-21 2023-06-23 新疆金禾山能源科技有限公司 Energy-saving environment-friendly flue gas desulfurization equipment
CN114602309A (en) * 2022-03-18 2022-06-10 安徽紫朔环境工程技术有限公司 Novel cement plant denitration dust removal pilot scale device
CN114602309B (en) * 2022-03-18 2023-06-20 安徽紫朔环境工程技术有限公司 Novel cement plant denitration dust removal pilot plant device
CN115121114A (en) * 2022-05-07 2022-09-30 华能山东发电有限公司众泰电厂 Boiler denitration inlet flue structure capable of sufficiently promoting mixing

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Application publication date: 20210706