CN113856439A - Industrial flue gas desulfurization and denitrification dust remover - Google Patents
Industrial flue gas desulfurization and denitrification dust remover Download PDFInfo
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- CN113856439A CN113856439A CN202111131733.5A CN202111131733A CN113856439A CN 113856439 A CN113856439 A CN 113856439A CN 202111131733 A CN202111131733 A CN 202111131733A CN 113856439 A CN113856439 A CN 113856439A
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- desulfurization
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- flue gas
- acid tank
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 115
- 230000023556 desulfurization Effects 0.000 title claims abstract description 111
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000003546 flue gas Substances 0.000 title claims abstract description 68
- 239000000428 dust Substances 0.000 title claims abstract description 28
- 239000002253 acid Substances 0.000 claims abstract description 51
- 239000012670 alkaline solution Substances 0.000 claims abstract description 51
- 239000000779 smoke Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 74
- 230000036541 health Effects 0.000 abstract description 4
- 238000003915 air pollution Methods 0.000 abstract description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 16
- 235000011149 sulphuric acid Nutrition 0.000 description 10
- 239000001117 sulphuric acid Substances 0.000 description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/485—Sulfur compounds containing only one sulfur compound other than sulfur oxides or hydrogen sulfide
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
-
- 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
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention relates to the field of industrial flue gas dust removal, in particular to an industrial flue gas desulfurization and denitrification dust remover which comprises a denitrification box, a desulfurization box and a desulfurization acid box, wherein the upper end of the denitrification box is provided with a smoke inlet pipe and an ammonia gas discharge pipe; an alkaline solution is arranged in the desulfurization acid tank, a motor and a smoke outlet pipe are fixedly arranged on the desulfurization acid tank, a connecting rod is fixedly arranged on an output shaft, a bar-shaped magnet is fixedly arranged at the lower end of the connecting rod, a spring is fixedly arranged at the bottom in the desulfurization acid tank, a magnet disc is fixedly arranged at one end of the spring, which is far away from the bottom of the desulfurization acid tank, a plurality of air holes are uniformly formed in the magnet disc, and a baffle is fixedly arranged in the air holes; the invention can solve the problems that the existing industrial flue gas dust remover does not consider that the discharged flue gas also carries fine sulfuric acid liquid drops, causes external air pollution and harms the body health of personnel.
Description
Technical Field
The invention relates to the field of industrial flue gas dust removal, in particular to an industrial flue gas desulfurization and denitrification dust remover.
Background
Industrial flue gas refers to waste flue gas generated in industrial production, and because industrial flue gas contains a large amount of harmful substances such as sulfur dioxide and the like, the industrial flue gas is easy to pollute the environment, when the industrial flue gas is discharged, the industrial flue gas needs to be subjected to desulfurization and denitrification treatment to reduce the content of the harmful substances in the waste gas, and dust in the flue gas needs to be treated to play an important role in environmental protection, so that when the industrial flue gas is discharged, a desulfurization and denitrification dust remover is required to be used for filtering the flue gas and discharging the flue gas into the atmosphere after the flue gas reaches the discharge standard;
in the prior art, a chinese patent with application No. 2020107735555 discloses an industrial flue gas desulfurization and denitration dust remover, which comprises a bedplate, wherein a desulfurization barrel is fixedly installed at the top end of the bedplate, a built-in bracket is fixedly installed in the desulfurization barrel, a built-in filter cartridge is clamped and installed at the top end of the built-in bracket, an oxygen inlet pipe is fixedly installed at the top end of the desulfurization barrel, a water inlet pipe is inserted and installed on the desulfurization barrel, a denitration box is fixedly installed at the top end of the bedplate, a filter screen cover is screwed and installed on the lower surface of a top cover of the denitration box, a filter plate is clamped and installed in the denitration box, an air pump is fixedly installed at the top end of the bedplate, a discharge pipeline is fixedly hung at the bottom end of the bedplate, a first dust filtering mechanism and a second dust filtering mechanism are movably installed on the discharge pipeline, an air cylinder is fixedly installed on the lower surface of the bedplate, a transmission mechanism is installed at the bottom end of the bedplate, and the transmission mechanism passes through the filter screen cover, an activated carbon plate, the first dust filtering mechanism and the second dust filtering mechanism, dust can be processed in a mode of combining interception and adsorption;
however, in the desulfurization process, sulfur dioxide is firstly oxidized to form sulfur trioxide, then the sulfur trioxide reacts with water to form sulfuric acid, then the flue gas and the sulfuric acid are introduced into a discharge pipeline together, the formed liquid sulfuric acid is collected after being filtered, and the flue gas is discharged out of a dust remover; but it is only to collect the sulphuric acid that forms the liquid, does not consider when continuously discharging the flue gas, leads to sulphuric acid solution supersaturation to form fuming sulphuric acid, and fuming sulphuric acid has volatility, and the flue gas can take away the sulphuric acid droplet that volatilizees and the quality is lighter, and does not have the step of getting rid of a small amount of sulphuric acid droplet that the flue gas carried in its patent, and the flue gas can be discharged outside the dust remover with sulphuric acid droplet together, can cause outside air pollution to harm personnel's health.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that when the existing industrial flue gas dust remover is used for desulfurization, the problem that when the flue gas is continuously discharged, because the sulfuric acid has volatility, the flue gas can take away the volatilized sulfuric acid liquid drops with lighter mass, and the step of removing a small amount of sulfuric acid liquid drops carried by the flue gas is not taken into consideration, the flue gas and the sulfuric acid liquid drops are discharged out of the dust remover together, so that the pollution to the outside air can be caused, and the physical health of personnel is harmed is solved, the invention provides the industrial flue gas desulfurization and denitrification dust remover.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an industrial flue gas desulfurization and denitrification dust remover, which is characterized in that: the denitration device comprises a denitration box, a desulfurization box and a desulfurization acid box, wherein the upper end of the denitration box is fixedly communicated with a smoke inlet pipe and an ammonia gas discharge pipe, a filter plate is fixedly arranged in the denitration box, a reducing agent is filled in the filter plate, the denitration box and the desulfurization box are fixedly communicated through an air pump, the air inlet end of the air pump is communicated with the lower end of the right side of the denitration box, the air inlet end of the air pump is positioned below the filter plate, and the air outlet end of the air pump is communicated with the upper end of the desulfurization box;
the upper end of the desulfurization box is fixedly communicated with a water inlet pipe and an oxygen discharge pipe, one end of the water inlet pipe penetrating through the desulfurization box is fixedly provided with a first spray head, an activated carbon plate is fixedly arranged in the desulfurization box, the desulfurization box and the desulfurization acid box are fixedly communicated through a communicating pipe, the air inlet end of the communicating pipe is communicated with the lower end of the right side of the desulfurization box, the air inlet end of the communicating pipe is positioned below the activated carbon plate, and the air outlet end of the communicating pipe is communicated with the upper end of the desulfurization acid box;
the desulfurization acid tank is filled with alkaline solution, one end of a communicating pipe penetrating through the desulfurization acid tank is inserted into the bottom of the alkaline solution, a leakage plate is fixedly mounted at the bottom end of the communicating pipe, a motor is fixedly mounted at the middle position of the upper end face of the desulfurization acid tank, an output shaft of the motor penetrates into the desulfurization acid tank, a vertical connecting rod is fixedly mounted on the output shaft, a horizontal bar-shaped magnet is fixedly mounted at the lower end of the connecting rod, the bar-shaped magnet is obtained by mutually fixedly connecting two magnets, the magnetic poles of the two magnets in the same direction are opposite, the upper end face of the desulfurization acid tank is fixedly communicated with a smoke outlet pipe, a spring is fixedly mounted at the bottom in the desulfurization acid tank, a magnet disc is fixedly mounted at one end of the spring, which is far away from the bottom of the desulfurization acid tank, the magnet disc is obtained by mutually fixedly connecting two semicircular discs, and the magnetic poles of the two semicircular discs in the same direction are opposite, the magnet disc is connected with the inner wall of the desulfurization acid box in a sealing and sliding manner; in an initial state, the magnet on the left side of the bar magnet is magnetically repelled with the left half disc of the magnet disc, and the magnet on the right side of the bar magnet is magnetically repelled with the right half disc of the magnet disc; a plurality of air holes are uniformly formed in the magnet disc, baffles are fixedly mounted in the air holes and are distributed in a bilateral symmetry mode along the central axes of the air holes.
Preferably, fixed mounting has first gasbag on the inside bottom surface of sour incasement portion of desulfurization, first gasbag is located the below of magnet dish, and links firmly each other between the upper surface of first gasbag and the magnet dish, the fixed intercommunication of first gasbag has the water injection pipe, the other end of water injection pipe is located the sour incasement of desulfurization top surface, the one end fixed mounting that first gasbag was kept away from to the water injection pipe has the second shower nozzle, fixed mounting has first nozzle on the first gasbag.
Preferably, bar magnet puts fixed mounting towards the center of the one side of magnet dish and has a deformation pole, the whole rhombus structure that is of deformation pole, the deformation pole comprises 4 branch end to end activities that are the same of size are articulated each other, a plurality of through-holes have evenly been seted up on the deformation pole, the up end central point of magnet dish puts fixed mounting and has the bearing, the lower extreme rotation of deformation pole is installed on the bearing, deformation pole, bar magnet's axis of rotation coincide each other.
Preferably, a second air bag is fixedly mounted on the inner side of the rhombus surrounded by the deformation rods, the second air bag is located below the liquid level in the desulfurization acid tank, and a second nozzle is fixedly mounted on the second air bag.
Preferably, a conical intercepting net is fixedly installed on the inner wall of one end, communicated with the desulfurization acid tank, of the smoke outlet pipe, the opening of the intercepting net faces the bottom surface of the desulfurization acid tank, a felt is fixedly arranged on the inner wall of the opening of the intercepting net, and the outer diameter of the opening of the intercepting net is equal to the inner diameter of the smoke outlet pipe.
Preferably, a plurality of axial vertical water permeable holes are uniformly formed in the baffle.
The invention has the following beneficial effects:
1. according to the invention, when the bar magnet continuously rotates, the bar magnet can horizontally stir the alkaline solution, and the lower magnet disc moves up and down along the desulfurization box due to magnetic force, so that the magnet disc vertically stirs the alkaline solution, the alkaline medium is more uniformly distributed in the alkaline solution, and sulfuric acid droplets in flue gas can fully react with the alkaline solution; the baffle plate arranged in the air holes can block the upward movement speed of the air bubbles, so that the time of the air bubbles in the alkaline solution is prolonged, and the air bubbles are more fully mixed and reacted with the alkaline solution.
2. In the invention, the alkaline solution in the first air bag is sprayed out from the second spray head through the water injection pipe, and the second spray head sprays the alkaline solution, so that sulfuric acid droplets which are not neutralized by the alkaline solution can be prevented from being discharged from the smoke outlet pipe, the sulfuric acid droplets in the smoke are further removed, and the sulfuric acid removing effect of the desulfurization acid box is improved; when the second gasbag received the compression, the alkaline solution in the second gasbag can be to the horizontal direction blowout, makes the bubble that upwards floats receive the ascending power of horizontal direction, and the bubble can earlier horizontal motion upwards floats again to this dwell time of bubble in alkaline solution has been prolonged, and then makes the more abundant alkaline solution mixing reaction with the bubble.
3. According to the invention, the intercepting net is arranged, so that the resistance of the smoke discharged from the smoke outlet pipe can be increased, and trace solution carried in the smoke can be adsorbed by the felt in time; the felt absorbs a trace amount of alkaline solution, so that the alkaline solution is prevented from being discharged along with smoke, environmental pollution is caused, and the body health of people is even harmed.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view showing the internal structure of the sulfuric acid removal tank of the present invention;
FIG. 3 is a cross-sectional view of a magnet disk of the present invention;
FIG. 4 is an enlarged partial cross-sectional view taken at A in FIG. 2;
in the figure: denitration case 1, desulfurization case 2, sour case 3 of desulfurization, advance tobacco pipe 4, ammonia gas row go into pipe 5, filter plate 6, air pump 7, inlet tube 8, oxygen row go into pipe 9, activated carbon board 10, communicating pipe 11, bushing 12, play tobacco pipe 13, motor 14, connecting rod 15, bar magnet 16, spring 17, magnet dish 18, bleeder vent 19, baffle 20, first gasbag 21, water injection pipe 22, second shower nozzle 23, deformation pole 24, through-hole 25, bearing 26, second gasbag 27, interception net 28, felt 29, the hole of permeating water 30, first shower nozzle 31.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, the industrial flue gas desulfurization and denitrification dust collector of the invention comprises a denitrification box 1, a desulfurization box 2 and a desulfurization acid box 3, wherein the upper end of the denitrification box 1 is fixedly communicated with a flue gas inlet pipe 4 and an ammonia gas exhaust pipe 5, a filter plate 6 is fixedly installed in the denitrification box 1, a reducing agent is filled in the filter plate 6, the denitrification box 1 and the desulfurization box 2 are fixedly communicated through an air pump 7, the air inlet end of the air pump 7 is communicated with the lower end of the right side of the denitrification box 1, the air inlet end of the air pump 7 is positioned below the filter plate 6, and the air outlet end of the air pump 7 is communicated with the upper end of the desulfurization box 2;
the upper end of the desulfurization box 2 is fixedly communicated with a water inlet pipe 8 and an oxygen discharge pipe 9, one end of the water inlet pipe 8 penetrating through the desulfurization box 2 is fixedly provided with a first spray head 31, an activated carbon plate 10 is fixedly arranged in the desulfurization box 2, the desulfurization box 2 and the desulfurization acid box 3 are fixedly communicated through a communication pipe 11, the air inlet end of the communication pipe 11 is communicated with the lower end of the right side of the desulfurization box 2, the air inlet end of the communication pipe 11 is positioned below the activated carbon plate 10, and the air outlet end of the communication pipe 11 is communicated with the upper end of the desulfurization acid box 3;
the desulfurization acid tank 3 is filled with alkaline solution, one end of a communicating pipe 11 penetrating through the desulfurization acid tank 3 is inserted into the bottom of the alkaline solution, a leakage plate 12 is fixedly mounted at the bottom end of the communicating pipe 11, a motor 14 is fixedly mounted at the middle of the upper end face of the desulfurization acid tank 3, an output shaft of the motor 14 penetrates into the desulfurization acid tank 3, a vertical connecting rod 15 is fixedly mounted on the output shaft, a horizontal bar magnet 16 is fixedly mounted at the lower end of the connecting rod 15, the bar magnet 16 is obtained by mutually fixedly connecting two magnets, the magnetic poles of the two magnets in the same direction are opposite, the upper end face of the desulfurization acid tank 3 is fixedly communicated with a smoke outlet pipe 13, a spring 17 is fixedly mounted at the bottom of the desulfurization acid tank 3, a magnet disc 18 is fixedly mounted at one end of the spring 17 far away from the bottom of the desulfurization acid tank 3, and the magnet disc 18 is obtained by mutually fixedly connecting two semicircular discs, the magnetic poles of the two semicircular disks in the same direction are opposite, and the magnet disk 18 is connected with the inner wall of the desulfurization acid tank 3 in a sealing and sliding manner; in an initial state, the magnet on the left side of the bar magnet 16 is magnetically repelled from the left half disc of the magnet disc 18, and the magnet on the right side of the bar magnet 16 is magnetically repelled from the right half disc of the magnet disc 18; a plurality of air holes 19 are uniformly formed in the magnet disc 18, baffle plates 20 are fixedly arranged in the air holes 19, and the baffle plates 20 are bilaterally symmetrical and vertically distributed along the central axis of the air holes 19;
when the denitration device works, firstly, industrial flue gas is discharged into the denitration box 1 from the flue gas inlet pipe 4, meanwhile, ammonia gas is discharged into the denitration box 1 from the ammonia gas discharge pipe 5, and after the ammonia gas, the flue gas and a reducing agent on the filter plate 6 are contacted, denitration is carried out to remove amine oxide in the flue gas; after denitration, the flue gas after denitration is pumped into the desulfurization box 2 through the air pump 7, meanwhile, oxygen is discharged into the desulfurization box 2 from the oxygen discharge pipe 9, sulfur dioxide in the flue gas and oxygen are mixed to form sulfur trioxide, the sulfur trioxide is adsorbed on the activated carbon plate 10, water enters the water inlet pipe 8, water is sprayed by the first spray head 31, the sulfur trioxide reacts with the water to generate sulfuric acid, the sulfuric acid forming liquid is collected in the desulfurization box 2, and the flue gas after denitration and desulfurization can carry partial sulfuric acid globules to be introduced into the desulfurization acid box 3 from the communicating pipe 11;
because the bushing 12 is located below the liquid level, the bushing 12 ejects the flue gas downwards in the shape of bubbles, meanwhile, the motor 14 is started, the output shaft of the motor 14 drives the connecting rod 15 and the bar magnet 16 to rotate, the bar magnet 16 horizontally stirs the alkaline solution in the sulfuric acid tank 3 to prevent the alkaline medium in the alkaline solution from being accumulated at the bottom of the sulfuric acid tank 3, the bar magnet 16 horizontally stirs the alkaline medium to be uniformly distributed in the alkaline solution, the sulfuric acid droplets in the flue gas can fully react with the alkaline solution, in an initial state, the magnet on the left side of the bar magnet 16 is magnetically repelled with the left half disc of the magnet disc 18, the magnet on the right side of the bar magnet 16 is magnetically repelled with the right half disc of the magnet disc 18, the magnet disc 18 is wholly downward, when the bar magnet 16 rotates to the magnet on the left side of the bar magnet 16 and is magnetically attracted with the left half disc of the magnet disc 18, and the magnet on the right side of the bar magnet 16 and the magnet disc 18 are magnetically attracted, magnet disc 18 is whole upwards, consequently when bar magnet 16 constantly rotates, magnet disc 18 of below is because of magnetic force along desulfurization case 2 up-and-down motion, thereby make magnet disc 18 vertical stirring alkaline solution, make alkaline medium evenly distributed in alkaline solution more, the sulphuric acid liquid drop in the flue gas can fully react with alkaline solution, magnet disc 18 seals up sliding installation in desulfurization acid case 3, and evenly seted up a plurality of bleeder vents 19 on magnet disc 18, consequently, the bubble is from upward movement in bleeder vent 19, the baffle 20 that sets up in bleeder vent 19 can block the speed of bubble upward movement, thereby the time of bubble at alkaline solution has been prolonged, make the bubble more abundant react with alkaline solution mixture, the flue gas that takes off sulphuric acid at last is discharged from play tobacco pipe 13.
As an embodiment of the present invention, a first air bag 21 is fixedly installed on the bottom surface inside the sulfuric acid tank 3, the first air bag 21 is located below the magnet disc 18, the upper surface of the first air bag 21 and the magnet disc 18 are fixedly connected to each other, the first air bag 21 is fixedly communicated with a water injection pipe 22, the other end of the water injection pipe 22 is located on the top surface inside the sulfuric acid tank 3, one end of the water injection pipe, which is far away from the first air bag 21, is fixedly installed with a second nozzle 23, and the first air bag 21 is fixedly installed with a first nozzle;
in operation, while the magnet disc 18 slides up and down along the sulfuric acid removing box 3, the magnet disc 18 expands or compresses the first air bag 21 below; because the one-way valve is arranged between the second spray head and the first air bag 21, air or solution can only be sprayed out of the second spray head and cannot enter from the second spray head, and therefore when the first air bag 21 expands, the first air bag 21 only sucks in alkaline solution through the first nozzle; because the one-way valve is arranged between the first nozzle and the first air bag 21, the alkaline solution can only enter from the first nozzle, but the alkaline solution can not be sprayed out from the first nozzle, when the first air bag 21 is compressed, the alkaline solution in the first air bag 21 is sprayed out from the second spray head 23 through the water injection pipe 22, the sulfuric acid drops which are not neutralized by the alkaline solution can be prevented from being discharged from the smoke outlet pipe 13 by spraying the alkaline solution by the second spray head 23, the sulfuric acid drops in the smoke are further removed, and the effect of removing the sulfuric acid by the sulfuric acid box 3 is improved.
As an embodiment of the present invention, a deformation rod 24 is fixedly installed at a central position of one surface of the bar magnet 16 facing the magnet disc 18, the deformation rod 24 is of a diamond structure as a whole, the deformation rod 24 is formed by movably hinging 4 support rods with the same size end to end, a plurality of through holes 25 are uniformly formed in the deformation rod 24, a bearing 26 is fixedly installed at a central position of an upper end surface of the magnet disc 18, a lower end of the deformation rod 24 is rotatably installed on the bearing 26, and rotating shafts of the bearing 26, the deformation rod 24 and the bar magnet 16 are overlapped with each other;
when the deformation rod 24 rotates, the deformation rod 24 can stir alkaline solution, so that alkaline medium is more uniformly distributed in the alkaline solution, and bubbles can fully react with the alkaline medium; the through holes 25 on the deformation rod 24 can break up large bubbles into small bubbles when rotating, so that the contact area of the bubbles and alkaline solution is increased, and sulfuric acid in the bubbles can react with alkaline medium more sufficiently.
As an embodiment of the present invention, a second air bag 27 is fixedly installed inside a rhombus surrounded by the deformation rod 24, the second air bag 27 is located below the liquid level in the desulfurization acid tank 3, and a second nozzle is fixedly installed on the second air bag 27;
in operation, as the bar magnet 16 rotates, the magnet disc 18 moves closer to or away from the bar magnet 16, compressing or expanding the deformation bar 24 in a vertical direction; when the deformation rod 24 is expanded in the vertical direction, the second air bag 27 in the deformation rod 24 is expanded, and the alkaline solution enters the second air bag 27 from the second nozzle; when deformation pole 24 compresses in vertical direction, second gasbag 27 in deformation pole 24 also can receive the compression, spouts the alkaline solution in the second gasbag 27 to the horizontal direction from the second nozzle, makes the bubble that upwards floats receive the ascending power of horizontal direction, and the bubble can earlier horizontal motion upwards floats again to this dwell time of bubble in alkaline solution has been prolonged, and then makes more abundant and alkaline solution mixing reaction of bubble.
As an embodiment of the present invention, a tapered intercepting net 28 is fixedly installed on an inner wall of one end of the smoke outlet pipe 13, which is communicated with the desulfurization acid tank 3, an opening of the intercepting net 28 faces to the bottom surface of the desulfurization acid tank 3, a felt 29 is fixedly installed on the inner wall of the opening of the intercepting net 28, and an outer diameter of the opening of the intercepting net 28 is equal to an inner diameter of the smoke outlet pipe 13;
through setting up interception net 28, can increase the flue gas from the exhaust resistance of play tobacco pipe 13 for the trace solution that carries in the flue gas can in time be adsorbed by felt 29, and felt 29 adsorbs trace alkaline solution, prevents that alkaline solution from discharging along with the flue gas, causes the pollution of environment and even harm personnel's healthy.
As an embodiment of the present invention, a plurality of axially vertical water permeable holes 30 are uniformly formed on the baffle 20;
when magnet disc 18 up-and-down motion, alkaline solution constantly strikes baffle 20, baffle 20 can constantly receive the ascending power of solution vertical direction, because baffle 20 only one end is fixed in bleeder vent 19, baffle 20 probably drops from in the bleeder vent 19, through seting up vertical hole 30 of permeating water on baffle 20, rivers can flow from the hole 30 of permeating water, prevent that water impact from causing the damage of baffle 20, and when the bubble was discharged from the hole 30 of permeating water, the hole 30 of permeating water can extrude into the bubble of a plurality of less diameters with big bubble, with this area of contact of bubble with alkaline solution has been increased, make sulphuric acid in the bubble more abundant react with alkaline medium.
The specific working process is as follows:
when the denitration device works, firstly, industrial flue gas is discharged into the denitration box 1 from the flue gas inlet pipe 4, meanwhile, ammonia gas is discharged into the denitration box 1 from the ammonia gas discharge pipe 5, and after the ammonia gas, the flue gas and a reducing agent on the filter plate 6 are contacted, denitration is carried out to remove amine oxide in the flue gas; after denitration, the flue gas after denitration is pumped into the desulfurization box 2 through the air pump 7, meanwhile, oxygen is discharged into the desulfurization box 2 from the oxygen discharge pipe 9, sulfur dioxide in the flue gas and oxygen are mixed to form sulfur trioxide, the sulfur trioxide is adsorbed on the activated carbon plate 10, water enters the water inlet pipe 8, water is sprayed by the first spray head 31, the sulfur trioxide reacts with the water to generate sulfuric acid, the sulfuric acid forming liquid is collected in the desulfurization box 2, and the flue gas after denitration and desulfurization can carry partial sulfuric acid globules to be introduced into the desulfurization acid box 3 from the communicating pipe 11;
the leakage plate 12 sprays the smoke downwards in the shape of bubbles, meanwhile, the motor 14 is started, the output shaft of the motor 14 drives the connecting rod 15, the bar magnet 16 and the deformation rod 24 to rotate, the bar magnet 16 and the deformation rod 24 stir the alkaline solution in the sulfuric acid box 3, in an initial state, the magnet on the left side of the bar magnet 16 is magnetically repelled with the left half disc of the magnet disc 18, the magnet on the right side of the bar magnet 16 is magnetically repelled with the right half disc of the magnet disc 18, the magnet disc 18 is wholly downward, the magnet disc 18 compresses the first air bag 21 below, the alkaline solution in the first air bag 21 is sprayed out from the second nozzle 23 through the water injection pipe 22, when the bar magnet 16 rotates to the state that the magnet on the left side of the bar magnet 16 is magnetically attracted with the left half disc of the magnet disc 18, and the magnet on the right side of the bar magnet 16 is magnetically attracted with the right half disc of the magnet disc 18, the magnet disc 18 is wholly upward, the second air bag 27 in the deformation rod 24 is compressed, the alkaline solution in the second air bag 27 is sprayed in the horizontal direction, the bubbles floating upwards are subjected to the force in the horizontal direction, the bubbles move horizontally and then float upwards, the flue gas with sulfuric acid removed is adsorbed to the alkaline solution in the flue gas through the interception net 28 in the flue gas outlet pipe 13, and finally the flue gas is discharged from the flue gas outlet pipe 13.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an industry flue gas desulfurization denitration dust remover which characterized in that: the denitration device comprises a denitration box (1), a desulfuration box (2) and a desulfuration acid box (3), wherein the upper end of the denitration box (1) is fixedly communicated with a smoke inlet pipe (4) and an ammonia gas discharge pipe (5), a filter plate (6) is fixedly installed in the denitration box (1), a reducing agent is filled in the filter plate (6), the denitration box (1) and the desulfuration box (2) are fixedly communicated through an air pump (7), the air inlet end of the air pump (7) is communicated with the lower end of the right side of the denitration box (1), the air inlet end of the air pump (7) is positioned below the filter plate (6), and the air outlet end of the air pump (7) is communicated with the upper end of the desulfuration box (2);
the desulfurization device is characterized in that the upper end of the desulfurization box (2) is fixedly communicated with a water inlet pipe (8) and an oxygen discharge pipe (9), one end of the water inlet pipe (8) penetrating through the desulfurization box (2) is fixedly provided with a first spray head (31), an activated carbon plate (10) is fixedly arranged in the desulfurization box (2), the desulfurization box (2) and the desulfurization acid box (3) are fixedly communicated through a communicating pipe (11), the air inlet end of the communicating pipe (11) is communicated with the lower end of the right side of the desulfurization box (2), the air inlet end of the communicating pipe (11) is positioned below the activated carbon plate (10), and the air outlet end of the communicating pipe (11) is communicated with the upper end of the desulfurization acid box (3);
alkaline solution is filled in the desulfurization acid tank (3), one end of a communicating pipe (11) penetrating through the desulfurization acid tank (3) is inserted into the bottom of the alkaline solution, a leakage plate (12) is fixedly installed at the bottom end of the communicating pipe (11), a motor (14) is fixedly installed in the middle of the upper end face of the desulfurization acid tank (3), an output shaft of the motor (14) penetrates into the desulfurization acid tank (3), a vertical connecting rod (15) is fixedly installed on the output shaft, a horizontal bar magnet (16) is fixedly installed at the lower end of the connecting rod (15), the bar magnet (16) is fixedly connected with two magnets, the two magnets are opposite in magnetic poles in the same direction, a smoke outlet pipe (13) is fixedly communicated with the upper end face of the desulfurization acid tank (3), a spring (17) is fixedly installed at the bottom of the desulfurization acid tank (3), and a disc (18) is fixedly installed at one end, far away from the bottom of the desulfurization acid tank (3), of the spring (17), the magnet disc (18) is obtained by fixedly connecting two semicircular discs, the magnetic poles of the two semicircular discs in the same direction are opposite, and the magnet disc (18) is connected with the inner wall of the desulfurization acid tank (3) in a sealing and sliding manner; in an initial state, the magnet on the left side of the bar magnet (16) is magnetically repelled with the left half disc of the magnet disc (18), and the magnet on the right side of the bar magnet (16) is magnetically repelled with the right half disc of the magnet disc (18); a plurality of air holes (19) are uniformly formed in the magnet disc (18), baffle plates (20) are fixedly mounted in the air holes (19), and the baffle plates (20) are distributed vertically and symmetrically along the central axis of the air holes (19).
2. The industrial flue gas desulfurization and denitrification dust remover according to claim 1, wherein: fixed mounting has first gasbag (21) on the inside bottom surface of sour case of desulfurization (3), first gasbag (21) are located the below of magnet dish (18), and link firmly each other between the upper surface of first gasbag (21) and magnet dish (18), first gasbag (21) fixed intercommunication has water injection pipe (22), the other end of water injection pipe (22) is located the top surface in sour case of desulfurization (3), the one end fixed mounting that first gasbag (21) were kept away from to the water injection pipe has second shower nozzle (23), fixed mounting has first nozzle on first gasbag (21).
3. The industrial flue gas desulfurization and denitrification dust remover according to claim 1, wherein: bar magnet (16) are towards the central point of the one side of magnet dish (18) and put fixed mounting and have deformation pole (24), it wholly is the rhombus structure to warp pole (24), it constitutes by 4 branch end to end mutual activity that the size is the same to warp pole (24), a plurality of through-holes (25) have evenly been seted up on deformation pole (24), the up end central point of magnet dish (18) puts fixed mounting and has bearing (26), the lower extreme rotation of deformation pole (24) is installed on bearing (26), the axis of rotation of bearing (26), deformation pole (24), bar magnet (16) coincides each other.
4. The industrial flue gas desulfurization and denitrification dust remover according to claim 3, wherein: a second air bag (27) is fixedly mounted on the inner side of the rhombus surrounded by the deformation rod (24), the second air bag (27) is located below the liquid level in the desulfurization acid tank (3), and a second nozzle is fixedly mounted on the second air bag (27).
5. The industrial flue gas desulfurization and denitrification dust remover according to claim 1, wherein: the inner wall of one end, communicated with the desulfurization acid tank (3), of the smoke outlet pipe (13) is fixedly provided with a conical intercepting net (28), the opening of the intercepting net (28) faces the bottom surface of the desulfurization acid tank (3), the inner wall of the opening of the intercepting net (28) is fixedly provided with a felt (29), and the outer diameter of the opening of the intercepting net (28) is equal to the inner diameter of the smoke outlet pipe (13).
6. The industrial flue gas desulfurization and denitrification dust remover according to claim 1, wherein: a plurality of axial vertical water permeable holes (30) are uniformly arranged on the baffle (20).
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| CN113856439B (en) | 2023-12-19 |
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Effective date of registration: 20231124 Address after: 238052 Xinjie, Sanbing Town, Juchao District, Chaohu City, Hefei City, Anhui Province Applicant after: Sinoma Anhui Cement Co.,Ltd. Address before: Room 601, unit 1, building 7, yunjingyuan, JIAYE Sunshine City, 128 Huangshan Road, Jianye District, Nanjing, Jiangsu 210000 Applicant before: Shan Ning |
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