CN110433583B - Flue gas desulfurization, denitrification and dust removal integrated equipment and use method thereof - Google Patents
Flue gas desulfurization, denitrification and dust removal integrated equipment and use method thereof Download PDFInfo
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- CN110433583B CN110433583B CN201910759534.5A CN201910759534A CN110433583B CN 110433583 B CN110433583 B CN 110433583B CN 201910759534 A CN201910759534 A CN 201910759534A CN 110433583 B CN110433583 B CN 110433583B
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 130
- 230000023556 desulfurization Effects 0.000 title claims abstract description 130
- 239000003546 flue gas Substances 0.000 title claims abstract description 106
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000000428 dust Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000011282 treatment Methods 0.000 claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 48
- 238000005192 partition Methods 0.000 claims description 29
- 229910021529 ammonia Inorganic materials 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- 210000003437 trachea Anatomy 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 23
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- 239000000779 smoke Substances 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 229910052815 sulfur oxide Inorganic materials 0.000 description 13
- 238000006555 catalytic reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- 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
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a flue gas desulfurization, denitrification and dust removal integrated device, which can solve the problems that the prior device needs to adopt a filter screen to filter and remove dust of flue gas when the flue gas is subjected to dust removal treatment, the existing equipment mostly adopts multilayer filter screens to filter smoke layer by layer, the multilayer filter screens have two existing modes in the equipment, one mode is fixed, the other mode is movable, the fixed dust removal effect is poor, the speed is slow, the movable dust removal effect is good, but an external drive is needed to drive the filter screens to move, the cost is high, but the two modes have the defect that the filter screens are inconvenient to clean, and the active carbon is required to be used when desulfurization and denitrification are carried out by the existing equipment, the active carbon is required to be taken out and cleaned after being used for a period of time in the equipment, and the existing equipment is inconvenient to take out the active carbon. The desulfurization and denitrification device comprises a dust removal cylinder and a desulfurization and denitrification box body connected with the dust removal cylinder, wherein the dust removal cylinder and the desulfurization and denitrification box body are both fixed on a base.
Description
Technical Field
The invention relates to the field of flue gas treatment equipment, in particular to flue gas desulfurization, denitrification and dust removal integrated equipment and a using method thereof.
Background
The flue gas needs to be dedusted, desulfurized and denitrated in the treatment process, so that specific desulfurization and denitrification needs to be usedNitrate dust removal equipment, however, the existing equipment has certain defects when in use, a filter screen is needed to filter and remove dust from flue gas when the equipment is started to remove dust from the flue gas, the existing equipment mostly adopts multilayer filter screens to filter smoke layer by layer, the multilayer filter screens have two existing modes in the equipment, one mode is fixed, the other mode is movable, the fixed dust removal effect is poor, the speed is slow, the movable dust removal effect is good, but an external drive is needed to drive the filter screens to move, the cost is high, but the two modes have the defect that the filter screens are inconvenient to clean, and the active carbon is needed to be used when the existing equipment is used for desulfurization and denitrification, sulfur dioxide in the flue gas is oxidized into sulfur trioxide and dissolved in water, and dilute sulfuric acid aerosol is generated and is adsorbed by the active carbon, so that NO in the flue gas is generated.XAfter passing through ammonia gas, the ammonia gas is reduced into harmless nitrogen gas to be discharged, the activated carbon needs to be taken out for cleaning after being used in the equipment for a period of time, and the existing equipment is inconvenient to take out the activated carbon.
The publication number is: CN 206240329U's patent discloses a flue gas desulfurization denitration dust pelletizing system, compares with this application article, can't solve the present application and propose: the filter screen that need adopt when handling the flue gas removes dust to this kind of equipment now filters the dust removal to the flue gas, and the inside multilayer filter screen that adopts of this kind of equipment now filters the flue gas layer upon layer more, there are two kinds of existence modes in the equipment inside the multilayer filter screen, one kind is fixed, one kind can move about, the dust removal effect of fixed is poor, speed is slow, but the dust removal effect that can move about needs external drive to drive the filter screen activity, and is with high costs, but these two kinds of modes all have inconvenient carry out clear defect to the filter screen, and this kind of equipment now need use the active carbon when carrying out SOx/NOx control, the active carbon need take out after the inside a period of equipment uses cleanly, and the inconvenient problem of taking out the active carbon of this kind of equipment now.
Disclosure of Invention
The invention aims to provide a flue gas desulfurization, denitrification and dust removal integrated device and a use method thereof, can solve the problems that the prior equipment adopts a filter screen to filter and remove dust of the flue gas when the flue gas is subjected to dust removal treatment, the existing equipment mostly adopts multilayer filter screens to filter smoke layer by layer, the multilayer filter screens have two existing modes in the equipment, one mode is fixed, the other mode is movable, the fixed dust removal effect is poor, the speed is slow, the movable dust removal effect is good, but an external drive is needed to drive the filter screens to move, the cost is high, but the two modes have the defect that the filter screens are inconvenient to clean, and the active carbon is required to be used when desulfurization and denitrification are carried out by the existing equipment, the active carbon is required to be taken out and cleaned after being used for a period of time in the equipment, and the existing equipment is inconvenient to take out the active carbon.
The purpose of the invention can be realized by the following technical scheme:
a flue gas desulfurization, denitrification and dedusting integrated device comprises a dedusting cylinder and a desulfurization and denitrification box body connected with the dedusting cylinder, wherein the dedusting cylinder and the desulfurization and denitrification box body are fixed on a base, one side of the dedusting cylinder is connected with an air inlet pipe, the side wall of the desulfurization and denitrification box body is connected with a third air pump positioned on the base, one side of the third air pump is connected with a chimney positioned on the base, one side of the chimney is provided with a power supply positioned on the base, the top of the dedusting cylinder is provided with an axle sleeve, a ball bearing is arranged inside the axle sleeve, the bottom of the ball bearing is connected with a rotating shaft connected into the dedusting cylinder, the bottom of the rotating shaft is connected with a plurality of baffles which form a fan-blade structure and are uniformly distributed inside the dedusting cylinder, a partition is formed between every two adjacent baffles, and the middle part of;
the device comprises a desulfurization and denitrification box body, and is characterized in that a first air pump and a second air pump are installed at the top of the desulfurization and denitrification box body, an ammonia box is connected at the top of the second air pump, a desulfurization pipeline and a denitrification pipeline which are of a U-shaped structure are installed inside the desulfurization and denitrification box body, a connecting pipe at the top end of the desulfurization pipeline is connected with the first air pump, a connecting pipe at the bottom end of the desulfurization pipeline is connected with a dust removal barrel, connecting seats are installed at two ends of the desulfurization pipeline, the connecting seats are connected into the desulfurization and denitrification box body from mounting holes in the outer wall of the desulfurization and denitrification box body, a conveying pipe connected into the desulfurization and denitrification box body is connected at the bottom of the first air pump, one end of the conveying pipe is connected into a mixing tank positioned inside the desulfurization and denitrification box body, the top of the mixing tank is connected with, the bottom of the mixing tank is connected with a denitration pipeline through a pipeline, a connecting seat which is connected from a mounting hole on the outer wall of the desulfurization and denitration tank body is installed at the bottom end of the denitration pipeline, the bottom end of the denitration pipeline is connected with a third air pump, and the third air pump is connected with a chimney through a pipeline;
a plurality of evenly distributed's that connects on the joint seat inside wall outer tube is located inside the SOx/NOx control box, and inserts the SOx/NOx control pipeline with the outer tube that the SOx/NOx control pipeline corresponds, inside the outer tube that corresponds with the SOx/NOx control pipeline, the trachea of connecting on the joint seat lateral wall, the air pump that is connected with the trachea is located the SOx/NOx control box outside, every the outer tube all is provided with a plurality of evenly distributed's inlet port, every on being close to the one end lateral wall of joint seat, every the one end that the joint seat was kept away from to the outer tube all runs through the chassis and connects a gas outlet, every an active carbon stick is all installed to outer tube inside, every.
Preferably, the baffle and the dust filter screen are rotatably connected with the inner wall of the dust removing cylinder through a rotating shaft, and the rotating power source of the baffle and the dust filter screen is circulating smoke.
Preferably, the flue gas discharged from the dust removing cylinder enters the desulfurization pipeline from the bottom end of the desulfurization pipeline and is pumped into the mixing tank from the top end of the desulfurization pipeline by the first suction pump.
Preferably, the pipe that advances at mixing tank top transports ammonia to mixing tank inside, and ammonia mixes with the flue gas under the drive of mixing fan after getting into mixing tank inside.
Preferably, after the connecting seat is connected into the desulfurization pipeline and the denitration pipeline, the connecting part between the connecting seat and the desulfurization pipeline and between the connecting seat and the denitration pipeline is closed.
Preferably, the chassis is matched with the inner diameters of linear parts of the desulfurization pipeline and the denitration pipeline in size.
Preferably, the activated carbon rod is movably connected with the inner wall of the outer tube through a pneumatic telescopic rod, and the activated carbon rod is completely ejected out of the inner part of the outer tube after the pneumatic telescopic rod is completely extended.
A use method of flue gas desulfurization, denitrification and dust removal integrated equipment comprises the following specific steps:
the method comprises the following steps: firstly, a connecting seat is connected into the side wall of a desulfurization and denitrification box body from the inside of three mounting holes, an outer pipe with an activated carbon rod is connected into a desulfurization pipeline after the connecting seat is connected, the inside of the denitrification pipeline is connected with an air inlet pipe and a pipeline for discharging a large amount of flue gas, and then the equipment is started by a power supply;
step two: then, the flue gas flowing into the inside of the desulfurization and denitrification box body enters a desulfurization pipeline under the pumping of a first air pump, the flue gas enters the inside of an outer pipe from an air inlet for desulfurization treatment, the flue gas is discharged from an air outlet, the flue gas is pumped to a conveying pipe and sent into a mixing tank by the first air pump after being treated twice in the desulfurization pipeline, ammonia in an ammonia box is sent into the mixing tank by a second air pump, a motor in the mixing tank drives a mixing fan to mix the flue gas with the ammonia, the flue gas mixed with the ammonia is sent into a denitrification pipeline for denitrification treatment under the action of a third air pump, and the flue gas is discharged from the air outlet and sent to a chimney for emission by the third air pump after the denitrification treatment;
step three: when the activated carbon rod needs to be taken out after being used for a long time, the connecting seat is pulled out from the mounting hole, the air pump is started, the activated carbon rod is separated from the outer tube under the action of the air pump driving the pneumatic telescopic rod to extend, and the activated carbon rod is cleaned and replaced by workers.
The invention has the beneficial effects that: because the baffles and the dust filter nets can rotate in the dust removing cylinder, the rotating power source of the baffles and the dust filter nets is circulating smoke, a fan-shaped structure is formed among the baffles, and a layer of vertically-arranged dust filter net is installed between every two adjacent baffles, so that the smoke drives the partition to rotate, the smoke entering the partition flows back and forth in the partition along with the rotation of the partition so as to be continuously filtered by the dust filter nets, and the smoke is discharged into the desulfurization and denitrification box body until the partition rotates to the position of a pipe orifice of a pipeline connected between the dust removing cylinder and the desulfurization and denitrification box body, the mode not only ensures that the smoke does not need to drive the dust filter nets to move through an external driving device to improve the filtering effect when being filtered in the dust removing cylinder, but also increases the retention time of the smoke in the dust removing cylinder, thereby effectively improving the filtering effect, and the space between the dust filter nets is larger, the vertical placement is realized, so that two surfaces of the dust filter screen can be directly cleaned when the shell of the dust removing cylinder is taken down, and the dust removing cylinder is more convenient;
due to the existence of the mixing tank, the flue gas can be fully mixed with ammonia gas before the flue gas is denitrated, so that NO in the flue gasXCan be fully mixed with ammonia gas and can be converted into N to the maximum extent under the catalysis of activated carbon2Discharging, thereby effectively improving the denitration effect;
because the desulfurization pipeline of U type structure, the mounting hole that corresponds the position on the denitration pipeline cooperation desulfurization denitration box outer wall, it is more convenient to make the activated carbon stick take out, only need with the joint chair extract from the mounting hole can, because activated carbon stick one end is connected with pneumatic telescopic link, the activated carbon stick passes through swing joint between pneumatic telescopic link and the outer tube inner wall, and pneumatic telescopic link extends the back activated carbon stick completely ejecting from the outer tube is inside completely, thereby the activated carbon stick can be with outer tube separation under the effect of air pump drive pneumatic telescopic link extension, thereby the convenience is cleaned the activated carbon stick, change.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the dust-removing cylinder of the present invention;
FIG. 3 is a schematic view of the internal structure of the desulfurization and denitrification box body according to the invention;
FIG. 4 is a schematic view of the internal structure of the desulfurization pipe of the present invention;
FIG. 5 is a schematic view of the internal structure of the denitration pipeline of the present invention;
FIG. 6 is a schematic view of a socket structure according to the present invention;
FIG. 7 is a schematic view of the internal structure of the outer tube of the present invention;
FIG. 8 is a schematic structural view of the outer tube of the present invention after being separated from the activated carbon rod;
in the figure: 1. an air inlet pipe; 2. a dust removal cylinder; 3. a base; 4. a desulfurization and denitrification box body; 5. a first air pump; 6. an ammonia gas tank; 7. a second air pump; 8. a third air pump; 9. a chimney; 10. a power source; 11. a shaft sleeve; 12. a ball bearing; 13. a rotating shaft; 14. a baffle plate; 15. a dust filter screen; 16. separating; 17. a desulfurization pipeline; 18. connecting a base; 19. a delivery pipe; 20. a mixing tank; 21. a motor; 22. a mixing fan; 23. feeding a pipe; 24. a denitration pipeline; 25. an outer tube; 26. an activated carbon rod; 27. a connecting pipe; 28. an air tube; 29. an air pump; 30. a chassis; 31. an air outlet; 32. an air inlet; 33. pneumatic telescopic link.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Referring to fig. 1-8, a flue gas desulfurization, denitrification and dust removal integrated device includes a dust removing cylinder 2 and a desulfurization and denitrification box 4 connected thereto, the dust removing cylinder 2 and the desulfurization and denitrification box 4 are both fixed on a base 3, one side of the dust removing cylinder 2 is connected with an air inlet pipe 1, a third air pump 8 positioned on the base 3 is connected on the side wall of the desulfurization and denitrification box 4, one side of the third air pump 8 is connected with a chimney 9 positioned on the base 3, one side of the chimney 9 is provided with a power supply 10 positioned on the base 3, the top of the dust removing cylinder 2 is provided with a shaft sleeve 11, a ball bearing 12 is arranged inside the shaft sleeve 11, the bottom of the ball bearing 12 is connected with a rotating shaft 13 connected into the dust removing cylinder 2, the bottom of the rotating shaft 13 is connected with a plurality of baffles 14 forming a fan-blade structure and uniformly distributed inside the dust removing cylinder 2, a partition 16 is formed between two adjacent baffles 14;
a first air pump 5 and a second air pump 7 are arranged at the top of the desulfurization and denitrification box body 4, an ammonia box 6 is connected at the top of the second air pump 7, a desulfurization pipeline 17 and a denitrification pipeline 24 with U-shaped structures are arranged inside the desulfurization and denitrification box body 4, a connecting pipe 27 at the top end of the desulfurization pipeline 17 is connected with the first air pump 5, the connecting pipe 27 at the bottom end of the desulfurization pipeline 17 is connected with the dust removing barrel 2, two ends of the desulfurization pipeline 17 are respectively provided with a connecting seat 18, the connecting seats 18 are connected into the desulfurization and denitrification box body 4 from a mounting hole on the outer wall of the desulfurization and denitrification box body 4, the bottom of the first air pump 5 is connected with a conveying pipe 19 connected into the desulfurization and denitrification box body 4, one end of the conveying pipe 19 is connected into a mixing tank 20 positioned inside the desulfurization and denitrification box body 4, the top of the mixing tank 20 is connected with an inlet pipe 23 connected with the second air, the bottom of the mixing tank 20 is connected with a denitration pipeline 24 through a pipeline, a connecting seat 18 connected from a mounting hole on the outer wall of the desulfurization and denitration box body 4 is mounted at the bottom end of the denitration pipeline 24, the bottom end of the denitration pipeline 24 is connected with a third air pump 8, and the third air pump 8 is connected with a chimney 9 through a pipeline;
a plurality of evenly distributed's that connect on the adapter 18 inside wall outer tube 25 is located SOx/NOx control box 4 inside, and the outer tube 25 that corresponds with SOx/NOx control pipe 17 inserts SOx/NOx control pipe 17, the outer tube 25 that corresponds with SOx/NOx control pipe 24 inserts inside SOx/NOx control pipe 24, the trachea 28 that connects on the adapter 18 lateral wall, the air pump 29 that is connected with trachea 28 is located SOx/NOx control box 4 outside, every outer tube 25 is close to all to be provided with a plurality of evenly distributed's inlet port 32 on the one end lateral wall of adapter 18, the one end that adapter 18 was kept away from to every outer tube 25 all runs through chassis 30 and connects a gas outlet 31, an active carbon stick 26 is all installed to every outer tube 25 inside, every active carbon stick 26 top all is.
The baffle 14 and the dust filter screen 15 are rotatably connected with the inner wall of the dust removing cylinder 2 through the rotating shaft 13, and the power source for rotating the baffle 14 and the dust filter screen 15 is circulating flue gas.
The flue gas discharged from the dust removing cylinder 2 enters the desulfurization pipeline 17 from the bottom end of the desulfurization pipeline 17, and is pumped into the mixing tank 20 from the top end of the desulfurization pipeline 17 by the first suction pump 5.
The pipe 23 that advances at mixing tank 20 top is to mixing tank 20 inside transport ammonia, and ammonia mixes with the flue gas under the drive of mixing fan 22 after getting into mixing tank 20 inside for before carrying out the denitration to the flue gas, the flue gas can with ammonia intensive mixing, thereby NO in the flue gasXCan be fully mixed with ammonia gas and can be converted into N to the maximum extent under the catalysis of activated carbon2And (4) discharging, thereby effectively improving the denitration effect.
The connection seat 18 is connected with the inside of the desulfurization pipeline 17 and the denitration pipeline 24, and the connection part between the connection seat 18 and the desulfurization pipeline 17 and the denitration pipeline 24 is sealed, so that the flue gas cannot leak.
The chassis 30 is matched with the linear inner diameters of the desulfurization pipeline 17 and the denitration pipeline 24, so that the flue gas can only flow into the outer pipe 25 from the air inlet 32.
The activated carbon rod 26 is movably connected with the inner wall of the outer tube 25 through the pneumatic telescopic rod 33, and the activated carbon rod 26 is completely ejected out of the inner part of the outer tube 25 after the pneumatic telescopic rod 33 is completely extended.
A use method of flue gas desulfurization, denitrification and dust removal integrated equipment comprises the following specific steps:
the method comprises the following steps: firstly, a connecting seat 18 is connected into the side wall of a desulfurization and denitrification box body 4 from the inside of three mounting holes, an outer pipe 25 with an activated carbon rod 26 is connected into a desulfurization pipeline 17 and a denitrification pipeline 24 after the connecting seat 18 is connected, the air inlet pipe 1 is connected with a pipeline for discharging a large amount of flue gas, then equipment is started through a power supply 10, firstly, the flue gas enters a dust removal cylinder 2 from the air inlet pipe 1, the flue gas acts on a baffle 14 in the circulating process, so that the flue gas drives a partition 16 to rotate, the flue gas entering the partition 16 circulates back and forth in the partition 16 along with the rotation of the partition 16 so as to be continuously filtered by a dust filter 15, and the flue gas is discharged into the desulfurization and denitrification box body 4 until the partition 16 rotates to the position of a pipe orifice of the pipeline connected;
step two: then, the flue gas flowing into the inside of the desulfurization and denitrification box 4 enters the desulfurization pipeline 17 under the pumping of the first air pump 5, the flue gas enters the inside of the outer pipe 25 from the air inlet 32 for desulfurization treatment, and then the flue gas is discharged from the air outlet 31, the flue gas is subjected to two treatments in the desulfurization pipeline 17 and then is pumped to the conveying pipe 19 by the first air pump 5 and is sent to the inside of the mixing tank 20, the ammonia gas in the ammonia gas box 6 is sent to the inside of the mixing tank 20 by the second air pump 7, the motor 21 in the mixing tank 20 drives the mixing fan 22 to mix the flue gas with the ammonia gas, under the action of the third air pump 8, the flue gas mixed with the ammonia gas is sent to the denitrification pipeline 24 for denitrification treatment, and then the flue gas is discharged from the air outlet 31 and is sent to the chimney 9;
step three: when the activated carbon rod 26 needs to be taken out after being used for a long time, the connecting seat 18 is pulled out of the mounting hole, the air pump 29 is started, the activated carbon rod 26 is separated from the outer tube 25 under the action of the air pump 29 driving the pneumatic telescopic rod 33 to extend, and a worker cleans and replaces the activated carbon rod 26.
The invention has the beneficial effects that: because the baffles 14 and the dust filter screens 15 can rotate in the dust removing cylinder 2, the rotating power of the baffles 14 and the dust filter screens 15 is the circulating flue gas, a fan-shaped structure is formed among the baffles 14, and a layer of vertically placed dust filter screen 15 is installed between every two adjacent baffles 14, so that the flue gas drives the partition 16 to rotate, the flue gas entering the partition 16 rotates along with the partition 16 to circulate back and forth in the partition 16 so as to be continuously filtered by the dust filter screens 15, and the flue gas is discharged into the desulfurization and denitrification box 4 until the partition 16 rotates to the position of a pipe orifice of a pipeline connected between the dust removing cylinder 2 and the desulfurization and denitrification box 4, the mode not only ensures that the flue gas does not need to drive the dust filter screens 15 to move through an external driving device to improve the filtering effect when being filtered in the dust removing cylinder 2, but also increases the retention time of the flue gas in the dust removing cylinder 2, therefore, the filtering effect is effectively improved, the distance between the dust filter screens 15 is large, and the dust filter screens are vertically arranged, so that two surfaces of the dust filter screens 15 can be directly cleaned when the shell of the dust removing cylinder 2 is taken down, and the dust removing cylinder is more convenient;
due to the existence of the mixing tank 20, the flue gas can be fully mixed with ammonia gas before denitration is carried out on the flue gas, so that NO in the flue gasXCan be fully mixed with ammonia gas and can be converted into N to the maximum extent under the catalysis of activated carbon2Discharging, thereby effectively improving the denitration effect;
because the desulfurization pipeline 17 of U type structure, the mounting hole that corresponds the position on 24 cooperation desulfurization denitration box 4 outer walls of denitration pipeline, it is more convenient when taking out to make activated carbon rod 26, only need to connect 18 to extract from the mounting hole can, because activated carbon rod 26 one end is connected with pneumatic telescopic link 33, activated carbon rod 26 passes through swing joint between pneumatic telescopic link 33 and the 25 inner walls of outer tube, and pneumatic telescopic link 33 extends the back activated carbon rod 26 completely and follows the inside ejecting completely of outer tube 25, thereby activated carbon rod 26 can separate with outer tube 25 under the effect of air pump 29 drive pneumatic telescopic link 33 extension, thereby the convenience is cleaned activated carbon rod 26, change.
When the invention is used, firstly, the connecting seat 18 is connected into the side wall of the desulfurization and denitrification box body 4 from the inside of three mounting holes, the outer pipe 25 with the activated carbon rod 26 is connected into the desulfurization pipeline 17 and the denitrification pipeline 24 after the connecting seat 18 is connected, the air inlet pipe 1 is connected with a pipeline for discharging a large amount of flue gas, then the equipment is started through the power supply 10, firstly, the flue gas enters the dust removing cylinder 2 from the air inlet pipe 1, the flue gas acts on the baffle plates 14 in the circulation process and enters the partition plates 16 one by one, because the fan-blade-shaped structures are formed among the baffle plates 14, and a layer of vertically-arranged dust filtering net 15 is arranged between the two adjacent baffle plates 14, so that the flue gas drives the partition plates 16 to rotate, the flue gas entering the partition plates 16 circulates back and forth in the partition plates 16 along with the rotation of the partition plates 16 so as to be continuously filtered by the dust filtering net 15, and the flue gas is not discharged into the desulfurization and denitrification box body Portion, this kind of mode not only makes the flue gas need not to drive the activity of dust filter screen 15 through external drive arrangement and promotes the filter effect when removing dust section of thick bamboo 2 internal filtering to increased the flue gas in the time that removes dust section of thick bamboo 2 inside stops, thereby effectively promoted the filter effect, the interval between dust filter screen 15 is great moreover, and vertically putTherefore, when the shell of the dust removing cylinder 2 is taken down, two surfaces of the dust filtering net 15 can be directly cleaned, and the dust removing cylinder is more convenient. Then, the flue gas flowing into the inside of the desulfurization and denitrification box 4 enters the desulfurization pipeline 17 under the pumping of the first air pump 5, the flue gas enters the inside of the outer pipe 25 from the air inlet 32 for desulfurization treatment, then the flue gas is discharged from the air outlet 31, the flue gas is pumped to the conveying pipe 19 and sent to the inside of the mixing tank 20 by the first air pump 5 after being treated twice in the desulfurization pipeline 17, the ammonia gas in the ammonia gas box 6 is sent to the inside of the mixing tank 20 by the second air pump 7, the motor 21 in the inside of the mixing tank 20 drives the mixing fan 22 to mix the flue gas with the ammonia gas, then under the action of the third air pump 8, the flue gas mixed with the ammonia gas is sent to the denitrification pipeline 24 for denitrification treatment, the flue gas is discharged from the air outlet 31 and sent to the chimney 9 by the third air pump 8 for emission, due to the existence of the mixing tank 20, the flue gas can be fully mixed with, thereby NO in the flue gasXCan be fully mixed with ammonia gas and can be converted into N to the maximum extent under the catalysis of activated carbon2Discharge, thereby effectively promote the denitration effect, and because the desulfurization pipeline 17 of U type structure, the mounting hole that corresponds the position on the 24 cooperation SOx/NOx control box 4 outer walls of denitration pipeline, it is more convenient when taking out to make activated carbon rod 26, only need with the joint socket 18 extract from the mounting hole can, because activated carbon rod 26 one end is connected with pneumatic telescopic link 33, activated carbon rod 26 passes through swing joint between pneumatic telescopic link 33 and the 25 inner walls of outer tube, and pneumatic telescopic link 33 extends the back activated carbon rod 26 completely and follows the inside complete ejection of outer tube 25, thereby activated carbon rod 26 can separate with outer tube 25 under the effect of air pump 29 drive pneumatic telescopic link 33 extension, thereby the convenience is cleaned activated carbon rod 26, change.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The flue gas desulfurization, denitrification and dedusting integrated equipment comprises a dedusting cylinder (2) and a desulfurization and denitrification box body (4) connected with the dedusting cylinder, and is characterized in that the dedusting cylinder (2) and the desulfurization and denitrification box body (4) are fixed on a base (3), one side of the dedusting cylinder (2) is connected with an air inlet pipe (1), the side wall of the desulfurization and denitrification box body (4) is connected with a third air suction pump (8) positioned on the base (3), one side of the third air suction pump (8) is connected with a chimney (9) positioned on the base (3), one side of the chimney (9) is provided with a power supply (10) positioned on the base (3), the top of the dedusting cylinder (2) is provided with a shaft sleeve (11), a ball bearing (12) is arranged inside the shaft sleeve (11), the bottom of the ball bearing (12) is connected with a rotating shaft (13) connected into the interior of the dedusting cylinder (2), the bottom of the rotating shaft (13) is connected with a plurality of baffle plates (14) which form a fan-shaped structure and are uniformly distributed in the dust removing cylinder (2), a partition (16) is formed between every two adjacent baffle plates (14), and the middle part of the partition (16) is provided with a dust filtering net (15) connected with the rotating shaft (13);
the desulfurization and denitrification device is characterized in that a first air pump (5) and a second air pump (7) are installed at the top of the desulfurization and denitrification box body (4), an ammonia box (6) is connected to the top of the second air pump (7), a desulfurization pipeline (17) and a denitrification pipeline (24) which are of a U-shaped structure are installed inside the desulfurization and denitrification box body (4), a connecting pipe (27) at the top end of the desulfurization pipeline (17) is connected with the first air pump (5), the connecting pipe (27) at the bottom end of the desulfurization pipeline (17) is connected with a dust removal barrel (2), two ends of the desulfurization pipeline (17) are respectively provided with a connecting seat (18), the connecting seats (18) are connected into the desulfurization and denitrification box body (4) from a mounting hole in the outer wall of the desulfurization and denitrification box body (4), the bottom of the first air pump (5) is connected with a conveying pipe (19) connected into the desulfurization and denitrification box body (4), one end of the conveying pipe (19) is connected into a, the top of the mixing tank (20) is connected with an inlet pipe (23) connected with the second air pump (7), a motor (21) is installed inside the mixing tank (20), the top of the motor (21) is connected with a mixing fan (22), a pipeline at the bottom of the mixing tank (20) is connected with a denitration pipeline (24), a connecting seat (18) connected from a mounting hole in the outer wall of the desulfurization and denitration box body (4) is installed at the bottom end of the denitration pipeline (24), the bottom end of the denitration pipeline (24) is connected with a third air pump (8), and the third air pump (8) is connected with a chimney (9) through a pipeline;
a plurality of evenly distributed outer pipes (25) connected with the inner side wall of the connecting seat (18) are positioned in the desulfurization and denitrification box body (4), and an outer pipe (25) corresponding to the desulfurization pipeline (17) is connected into the desulfurization pipeline (17), an outer pipe (25) corresponding to the denitration pipeline (24) is connected into the denitration pipeline (24), trachea (28) of connecting on the connection seat (18) lateral wall, air pump (29) that are connected with trachea (28) are located SOx/NOx control box (4) outside, every outer tube (25) are close to all are provided with a plurality of evenly distributed's inlet port (32) on the one end lateral wall of connection seat (18), every the one end that connection seat (18) were kept away from in outer tube (25) all runs through chassis (30) and connects one gas outlet (31), every outer tube (25) inside all installs an activated carbon stick (26), every activated carbon stick (26) top all is connected with a pneumatic telescopic link (33).
2. The integrated equipment for desulfurization, denitrification and dedusting of flue gas as claimed in claim 1, wherein the baffle plate (14) and the dust filter screen (15) are rotatably connected with the inner wall of the dedusting cylinder (2) through a rotating shaft (13), and the power source for rotation of the baffle plate (14) and the dust filter screen (15) is circulating flue gas.
3. The integrated equipment for desulfurization, denitrification and dust removal of flue gas as claimed in claim 2, wherein the flue gas discharged from the dust removal cylinder (2) enters the desulfurization pipeline (17) from the bottom end of the desulfurization pipeline (17), and is pumped into the mixing tank (20) from the top end of the desulfurization pipeline (17) by the first air pump (5).
4. The integrated equipment for desulfurization, denitrification and dedusting of flue gas according to claim 3, wherein the inlet pipe (23) at the top of the mixing tank (20) conveys ammonia gas into the mixing tank (20), and the ammonia gas is mixed with the flue gas under the driving of the mixing fan (22) after entering the mixing tank (20).
5. The integrated equipment for desulfurization, denitrification and dust removal of flue gas as claimed in claim 4, wherein after the joint seat (18) is connected into the desulfurization pipeline (17) and the denitration pipeline (24), the joint between the joint seat (18) and the desulfurization pipeline (17) and the denitration pipeline (24) is closed.
6. The integrated equipment for desulfurization, denitrification and dust removal of flue gas as claimed in claim 5, wherein the chassis (30) is matched with the inner diameters of the linear parts of the desulfurization pipeline (17) and the denitrification pipeline (24).
7. The integrated equipment for flue gas desulfurization, denitrification and dust removal according to claim 6, wherein the activated carbon rod (26) is movably connected with the inner wall of the outer tube (25) through a pneumatic telescopic rod (33), and the activated carbon rod (26) is completely ejected out of the inner part of the outer tube (25) after the pneumatic telescopic rod (33) is completely extended.
8. The use method of the flue gas desulfurization, denitrification and dust removal integrated equipment as claimed in claim 7 is characterized by comprising the following specific steps:
the method comprises the following steps: firstly, a connecting seat (18) is connected into the three mounting holes on the side wall of a desulfurization and denitrification box body (4), an outer pipe (25) with an activated carbon rod (26) after the connecting seat (18) is connected into a desulfurization pipeline (17) and a denitrification pipeline (24), and the air inlet pipe (1) is connected with a pipeline for discharging a large amount of flue gas, then the equipment is started by a power supply (10), firstly, the flue gas enters the interior of the dust removing cylinder (2) from the air inlet pipe (1), the flue gas acts on the baffle plate (14) in the circulating process, the flue gas drives the partition (16) to rotate, the flue gas entering the partition (16) circulates back and forth in the partition (16) along with the rotation of the partition (16) so as to be continuously filtered by the dust filtering net (15), and the flue gas is discharged into the desulfurization and denitrification box body (4) until the partition (16) rotates to the position of a pipe orifice of a pipeline connected between the dust removing cylinder (2) and the desulfurization and denitrification box body (4);
step two: then, the flue gas flowing into the inside of the desulfurization and denitrification box body (4) enters a desulfurization pipeline (17) under the extraction of a first air pump (5), the flue gas enters an outer pipe (25) from an air inlet (32) for desulfurization treatment, the flue gas is discharged from an air outlet (31), the flue gas is subjected to twice treatment in the desulfurization pipeline (17), then is pumped to a conveying pipe (19) by the first air pump (5) and is sent to the inside of a mixing tank (20), the ammonia gas in an ammonia box (6) is sent to the inside of the mixing tank (20) by a second air pump (7), a motor (21) in the mixing tank (20) drives a mixing fan (22) to mix the flue gas and the ammonia gas, under the action of a third air pump (8), the flue gas mixed with ammonia gas is sent into a denitration pipeline (24) for denitration treatment, and is discharged from an air outlet (31) after the denitration treatment is finished and is sent to a chimney (9) by the third air pump (8) for discharge;
step three: when the activated carbon rod (26) needs to be taken out after being used for a long time, the connecting seat (18) is pulled out from the mounting hole, the air pump (29) is started, the activated carbon rod (26) is separated from the outer tube (25) under the action of the air pump (29) driving the pneumatic telescopic rod (33) to extend, and workers clean and replace the activated carbon rod (26).
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| CN101598054B (en) * | 2009-05-20 | 2012-10-24 | 中国矿业大学 | Device for explosion prevention and filter purification of exhaust |
| CN103566722B (en) * | 2013-10-11 | 2015-10-28 | 北京睿昱达科技有限公司 | The method of plasma integration desulfurization denitration dedusting and device |
| CN104587777A (en) * | 2013-11-01 | 2015-05-06 | 江苏海恒建材机械有限公司 | Dust remover |
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