CN111282429A - SOx/NOx control dust collector with swirler - Google Patents
SOx/NOx control dust collector with swirler Download PDFInfo
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- CN111282429A CN111282429A CN202010144322.9A CN202010144322A CN111282429A CN 111282429 A CN111282429 A CN 111282429A CN 202010144322 A CN202010144322 A CN 202010144322A CN 111282429 A CN111282429 A CN 111282429A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- 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
- B01D53/005—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 heat treatment
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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
- B01D53/26—Drying gases or vapours
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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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
- F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
- F03D9/35—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects
- F03D9/37—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects with means for enhancing the air flow within the tower, e.g. by heating
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- 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
- B01D2251/2067—Urea
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- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The invention belongs to the technical field of flue gas purification, and particularly relates to a desulfurization, denitrification and dust removal device with a cyclone, which comprises a cyclone body, wherein the cyclone body comprises a feeding pipe, a shell and an overflow pipe, the overflow pipe is used for discharging flue gas in the shell, the top end of the overflow pipe is of a closed structure, two cylindrical boxes are symmetrically arranged at the top end of the shell, a connecting pipe is fixed between each cylindrical box and the overflow pipe and is used for communicating inner cavities of the cylindrical boxes and the overflow pipe, a circular ring is fixed in the middle of each inner cavity of the cylindrical box, and the circular ring is of a cavity structure; the slurry is sprayed from the spray head, so that the flue gas is fully contacted with the slurry when passing through the slurry, sulfur dioxide and nitrogen oxide in the flue gas are fully reacted with urea and various calcium-based absorbents in the slurry, and the sulfur dioxide and the nitrogen oxide in the flue gas are removed.
Description
Technical Field
The invention belongs to the technical field of flue gas purification, and particularly relates to a desulfurization, denitrification and dust removal device with a cyclone.
Background
SO2 and NOx discharged by coal combustion are main causes of air pollution; at present, the types of flue gas desulfurization techniques are dozens, and the flue gas desulfurization is divided into the following steps according to the dry and wet state of water and desulfurization products in the desulfurization process: wet, semi-dry and dry desulfurization processes; and (3) desulfurization: broadly refers to the process of sulfur removal from fuel prior to combustion and prior to flue gas emission. Is one of the important technical measures for preventing and controlling the air pollution. The desulfurization method generally comprises three methods, namely desulfurization before combustion, desulfurization during combustion and desulfurization after combustion. Many flue gas desulfurization processes have been widely used in industry, and have important practical significance for the treatment of tail gas of various boilers and incinerators. Denitration: in order to prevent the environment pollution caused by excessive NOx generated after the coal in the boiler is combusted, the coal is subjected to denitration treatment. The method comprises denitration before combustion, denitration during combustion and denitration after combustion. According to the formation mechanism of nitrogen oxides in the cement kiln, the technical measures for reducing nitrogen and emission of the cement kiln are divided into two categories: one is from the source. The other is from the end treatment.
The existing wet flue gas desulfurization and denitration technology adopts a mode of spraying slurry into flue gas to remove sulfur dioxide and nitrogen oxide in the flue gas, and the flue gas is not fully contacted with the slurry, and the solubility of a calcium-based desulfurizer in the slurry is low, so that the desulfurization and denitration effect of the flue gas is poor.
Disclosure of Invention
In order to make up the defects of the prior art, the desulfurization, denitrification and dust removal device with the cyclone provided by the invention has the advantages that the slurry is sprayed from the spray head, so that the flue gas is fully contacted with the slurry when passing through the slurry, the sulfur dioxide and the nitrogen oxide in the flue gas are fully reacted with the urea and various calcium-based absorbents in the slurry, and the sulfur dioxide and the nitrogen oxide in the flue gas are removed; meanwhile, fine particles in the flue gas are intercepted by the slurry and fall along the slurry when passing through the slurry, and are finally discharged from the water outlet pipe, so that the dust amount in the flue gas is reduced, and the purity of the flue gas is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a desulfurization, denitrification and dust removal device with a cyclone, which comprises a cyclone body, wherein the cyclone body comprises a feeding pipe, a shell and an overflow pipe, the overflow pipe is used for discharging flue gas in the shell, the top end of the overflow pipe is of a closed structure, two cylindrical tanks are symmetrically arranged at the top end of the shell, a connecting pipe is fixed between each cylindrical tank and the overflow pipe and is used for communicating the inner cavities of the cylindrical tanks and the overflow pipe, a circular ring is fixed in the middle of the inner cavity of each cylindrical tank and is of a cavity structure, more than two spray heads are equidistantly arranged on the inner side wall of the circular ring along the circumferential direction of the circular ring, the spray heads are communicated with the inner cavity of the circular ring, a straight pipe is arranged at the top end of each cylindrical tank, the bottom end of the straight pipe is communicated with the inner cavity of the circular ring, the bottom end of the cylindrical box is provided with a water outlet pipe, the outer side wall of the cylindrical box is fixedly provided with a controller, the controller is used for controlling the dust removal device to work, when the wet flue gas desulfurization and denitration device works, the existing wet flue gas desulfurization and denitration technology adopts a mode of spraying slurry into flue gas to remove sulfur dioxide and nitrogen oxide in the flue gas, and the flue gas is poor in desulfurization and denitration effect due to insufficient contact between the flue gas and the slurry and low solubility of a calcium-based desulfurizer in the slurry; the cyclone body is arranged, so that the flue gas enters the cyclone body, coarse particles in the flue gas are filtered after passing through the cyclone body, and the flue gas is discharged out of the cyclone body from the overflow pipe with fine particles; the flue gas enters the connecting pipe from the overflow pipe and then enters the cylindrical box, and the flue gas gathers at the bottom of the cylindrical box, moves upwards and is discharged from the gas outlet pipe at the top of the cylindrical box; when the flue gas passes through the circular ring, the spray heads on the circular ring spray slurry pumped by a water pump, so that the flue gas is discharged after passing through the slurry; the flue gas fully contacts the slurry when passing through the slurry, so that sulfur dioxide and nitrogen oxide in the flue gas fully react with urea in the slurry and various calcium-based absorbents, and the sulfur dioxide and nitrogen oxide in the flue gas are removed; meanwhile, fine particles in the flue gas are intercepted by the slurry and fall along the slurry when passing through the slurry, and are finally discharged from the water outlet pipe, so that the dust amount in the flue gas is reduced, and the purity of the flue gas is improved.
Preferably, the spray head is of a flat structure, the cross section of a channel of the spray head is of a horn-shaped structure, and when the spray head works, the spray head is of the flat structure, so that the thickness of liquid sprayed out of the spray head is smaller, and smoke is prevented from being difficult to pass through; meanwhile, the spray heads are in a horn-shaped structure, so that the slurry sprayed out of the spray heads is splayed, and the range of the slurry sprayed out by the spray heads is larger; the grout sprayed by the plurality of spray heads forms a finished sealing pattern, so that the grout covers the flow channel of the flue gas, and the flue gas can uniformly pass through the grout and fully react with the grout.
Preferably, more than two stop blocks are equidistantly arranged on the inner side wall of the cylindrical box along the circumferential direction of the inner side wall, the connecting pipe is of an arc-shaped structure and is tangent to the side wall of the cylindrical box, and when the smoke-gas separator works, smoke gas enters the cylindrical box from the connecting pipe tangent to the side wall of the cylindrical box, and the smoke gas rotates in an inner cavity of the cylindrical box due to certain moving speed of the smoke gas; the rotating smoke generates centrifugal force to enable fine particles in the smoke to move to the inner side wall of the cylindrical box; the dog blocks the flue gas when the flue gas is in the dog department for fine particle in the flue gas is stopped down and is filtered from the flue gas under the action of gravity and the drive of thick liquid, thereby has improved the clean degree of flue gas.
Preferably, a generator is fixed at the bottom end of the inner cavity of the cylindrical box, a fan is rotatably connected to the top end of the generator, the fan is electrically connected with the generator, the fan comprises fan blades, wind shields penetrate through and are fixedly mounted on the fan blades, more than two resistance wires which are arranged in parallel are fixed at the top of the inner cavity of the cylindrical box through a mounting plate, the resistance wires are electrically connected with the generator, and when the device works, flue gas after wet treatment needs to be reheated after being washed, so that the energy consumption in the desulfurization and denitrification process is higher; when the smoke-blowing fan is used, smoke enters the cylindrical box and then rotates around the inner side wall of the cylindrical box, and the smoke blows the wind shield while moving so that the wind shield drives the fan blades to rotate; the rotating fan blades drive the generator to work and generate electric power, and the electric power generated by the generator passes through the resistance wire to enable the resistance wire to generate heat; the heating resistance wire heats the passing flue gas, so that the temperature of the flue gas is increased, and the flue gas is dried, so that the energy consumption for heating the flue gas is reduced, the dryness of the flue gas is ensured, and the quality of the flue gas is improved; in addition, the fan blades rotate to drive the smoke to move upwards, so that the moving speed of the smoke is accelerated, the loss speed of the smoke entering the cylindrical box is compensated, and the smoke is in a normal flowing speed.
Preferably, the top of the stop block and the direction facing the air outlet of the connecting pipe are both provided with pointed ends, the stop block is made of activated carbon materials, and when the device works, if the contact area of the stop block and the front surface of flue gas is large, the flow velocity of the flue gas is easy to reduce, so that the rotating speed of the fan blades is reduced, and the heating of the flue gas is influenced; the pointed ends are arranged at the top of the stop block and towards the air outlet of the connecting pipe, so that the speed of the smoke is reduced less when the smoke passes through the stop block, the normal flow of the smoke is ensured, and the centrifugal action of fine particles is ensured; the pointed end arranged at the top of the stop block is convenient for slurry to flow down, so that the slurry flows on the surface of the stop block and simultaneously washes away fine particle dust adhered to the surface of the stop block, the adhesion of the dust on the surface of the stop block is reduced, and the continuous cleaning capability of the stop block is ensured; the check block made of the activated carbon material can not only adsorb fine particle dust in flue gas, but also adsorb sulfur dioxide and nitrogen oxide, so that dust can be removed, harmful gas in the flue gas can also be removed, and the quality of the flue gas is improved.
Preferably, the side wall of the stop block is provided with a downward rectangular groove which is used for blocking dust, and when the stop block works, when fine particles pass through the surface of the stop block, the stop block has a general effect of blocking the fine particles, so that the single fine particle can be captured by the stop block after being rotated for multiple times; the side wall of the stop block is provided with a downward rectangular groove, so that fine particle dust enters the rectangular groove when passing through the surface of the stop block, and the fine particle dust is rapidly captured; slurry sprayed from the spray head flows downwards along the rectangular groove and simultaneously carries out dust removal on fine particle dust in the rectangular groove, so that the rectangular groove can continuously carry out dust removal, and the dust removal capacity of the stop block is improved.
The invention has the following beneficial effects:
1. according to the desulfurization, denitrification and dust removal device with the cyclone, slurry is sprayed from the spray head, so that flue gas is fully contacted with the slurry when passing through the slurry, sulfur dioxide and nitrogen oxide in the flue gas are fully reacted with urea and various calcium-based absorbents in the slurry, and the sulfur dioxide and the nitrogen oxide in the flue gas are removed.
2. According to the desulfurization, denitrification and dust removal device with the cyclone, the fan blades are driven by the flue gas to rotate to enable the generator to generate electricity through the arrangement of the fan blades, the generator and the resistance wire, the resistance wire generates heat through the electricity generated by the generator, the heating resistance wire heats the passing flue gas, the temperature of the flue gas is increased, meanwhile, the flue gas is dried, the energy consumption of heating the flue gas is reduced, the dryness of the flue gas is guaranteed, and the quality of the flue gas is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 is a three-dimensional view of the stop;
FIG. 7 is a schematic view showing an operating state of the head;
in the figure: the device comprises a feeding pipe 1, a shell 2, an overflow pipe 3, a cylindrical box 4, a connecting pipe 5, a circular ring 6, a spray head 7, a straight pipe 8, an air outlet pipe 9, a stop block 10, a generator 11, fan blades 12, a wind shield 13, a resistance wire 14 and a rectangular groove 15.
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 to 7, the desulfurization, denitrification and dust removal device with a cyclone comprises a cyclone body, the cyclone body comprises a feeding pipe 1, a shell 2 and an overflow pipe 3, the overflow pipe 3 is used for discharging flue gas in the shell 2, the top end of the overflow pipe 3 is of a closed structure, two cylindrical boxes 4 are symmetrically installed at the top end of the shell 2, a connecting pipe 5 is fixed between the cylindrical boxes 4 and the overflow pipe 3, the connecting pipe 5 is used for communicating the inner cavities of the cylindrical boxes 4 and the overflow box, a circular ring 6 is fixed in the middle of the inner cavity of the cylindrical box 4, the circular ring 6 is of a cavity structure, more than two spray heads 7 are equidistantly arranged on the inner side wall of the circular ring 6 along the circumferential direction of the circular ring, the spray heads 7 are communicated with the inner cavity of the circular ring 6, a straight pipe 8 is arranged at the top end of the cylindrical box 4, and the bottom end of, the top end of the straight pipe 8 is connected with a water pump through a water inlet pipe, the top end of the cylindrical box 4 is provided with an air outlet pipe 9, the bottom end of the cylindrical box 4 is provided with a water outlet pipe, the outer side wall of the cylindrical box 4 is fixed with a controller, the controller is used for controlling the operation of a dust removal device, when the wet flue gas desulfurization and denitration device works, the existing wet flue gas desulfurization and denitration technology adopts a mode of spraying slurry into flue gas to remove sulfur dioxide and nitrogen oxide in the flue gas, and the desulfurization and denitration effect of the flue gas is poor due to insufficient contact between the flue gas and the slurry and low solubility of; the cyclone body is arranged, so that the flue gas enters the cyclone body, coarse particles in the flue gas are filtered after passing through the cyclone body, and the flue gas is discharged out of the cyclone body from the overflow pipe 3 with fine particles; the flue gas enters the connecting pipe 5 from the overflow pipe 3 and then enters the cylindrical box 4, and the flue gas gathers at the bottom of the cylindrical box 4, moves upwards and is discharged from the gas outlet pipe 9 at the top of the cylindrical box 4; when the flue gas passes through the circular ring 6, the spray head 7 on the circular ring 6 sprays slurry pumped by a water pump, so that the flue gas is discharged after passing through the slurry; the flue gas fully contacts the slurry when passing through the slurry, so that sulfur dioxide and nitrogen oxide in the flue gas fully react with urea in the slurry and various calcium-based absorbents, and the sulfur dioxide and nitrogen oxide in the flue gas are removed; meanwhile, fine particles in the flue gas are intercepted by the slurry and fall along the slurry when passing through the slurry, and are finally discharged from the water outlet pipe, so that the dust amount in the flue gas is reduced, and the purity of the flue gas is improved.
As a specific embodiment of the present invention, the spray head 7 is of a flat structure, the channel section of the spray head 7 is of a trumpet-shaped structure, and when the spray head 7 is in operation, the thickness of the liquid sprayed out of the spray head 7 is made to be thinner by setting the spray head 7 to be of the flat structure, so that smoke is prevented from being difficult to pass through; meanwhile, the spray heads 7 are in a horn-shaped structure, so that the slurry sprayed out of the spray heads 7 is splayed, and the range of the slurry sprayed out by the spray heads 7 is larger; the grout sprayed by the plurality of spray heads 7 forms a finished sealing pattern, so that the grout covers the flow channel of the flue gas, and the flue gas can uniformly pass through the grout and fully react with the grout.
As a specific embodiment of the present invention, more than two stoppers 10 are equidistantly arranged on the inner side wall of the cylindrical box 4 along the circumferential direction thereof, the connecting pipe 5 is of an arc-shaped structure, the connecting pipe 5 is tangent to the side wall of the cylindrical box 4, and when the flue gas enters the cylindrical box 4 from the connecting pipe 5 tangent to the side wall of the cylindrical box 4, the flue gas rotates in the inner cavity of the cylindrical box 4 due to a certain moving speed of the flue gas; the rotating smoke generates centrifugal force to enable fine particles in the smoke to move to the inner side wall of the cylindrical box 4; the baffle block 10 blocks the flue gas when the flue gas passes through the baffle block 10, so that fine particles in the flue gas are blocked and are filtered from the flue gas under the action of gravity and the driving of slurry, and the cleanness degree of the flue gas is improved.
As a specific embodiment of the invention, the bottom end of the inner cavity of the cylindrical box 4 is fixed with a generator 11, the top end of the generator 11 is rotatably connected with a fan, the fan is electrically connected with the generator 11, the fan comprises fan blades 12, wind shields 13 are fixedly installed on the fan blades 12 in a penetrating manner, more than two resistance wires 14 which are arranged in parallel are fixed at the top of the inner cavity of the cylindrical box 4 through an installation plate, the resistance wires 14 are electrically connected with the generator 11, and when the device works, flue gas after wet treatment needs to be reheated after being washed, so that the energy consumption in the desulfurization and denitrification processes is higher; when the smoke-free air-purifying device is used, smoke enters the cylindrical box 4 and then rotates around the inner side wall of the cylindrical box 4, and the smoke moves and blows the wind shield 13 to enable the wind shield 13 to drive the fan blades 12 to rotate; the rotating fan blades 12 drive the generator 11 to work and generate electric power, and the electric power generated by the generator 11 passes through the resistance wire 14 to enable the resistance wire 14 to generate heat; the heating resistance wire 14 heats the passing flue gas, so that the temperature of the flue gas is increased, and the flue gas is dried, so that the energy consumption for heating the flue gas is reduced, the dryness of the flue gas is ensured, and the quality of the flue gas is improved; in addition, the fan blades 12 rotate to drive the flue gas to move upwards, so that the moving speed of the flue gas is accelerated, the loss speed of the flue gas entering the cylindrical box 4 is compensated, and the flue gas is at the normal flowing speed.
As a specific embodiment of the invention, the top of the stopper 10 and the direction facing the air outlet of the connecting pipe 5 are both provided with a pointed end, the stopper 10 is made of an activated carbon material, and when the smoke heating device works, if the contact area of the stopper 10 and the front surface of smoke is large, the flow velocity of the smoke is easy to decrease, so that the rotating speed of the fan blades 12 is decreased, and the heating of the smoke is further influenced; the pointed ends are arranged at the top of the stop block 10 and towards the air outlet of the connecting pipe 5, so that the speed of the flue gas is reduced less when the flue gas passes through the stop block 10, the normal flow of the flue gas is ensured, and the centrifugal action of fine particles is ensured; the pointed head arranged at the top of the stop block 10 is convenient for slurry to flow down, so that the slurry flows on the surface of the stop block 10 and simultaneously washes away fine particle dust adhered to the surface of the stop block 10, the adhesion of the dust on the surface of the stop block 10 is reduced, and the continuous cleaning capability of the stop block 10 is ensured; the stopper 10 made of the activated carbon material can not only adsorb fine particle dust in flue gas, but also adsorb sulfur dioxide and nitrogen oxide, so that dust can be removed, harmful gas in the flue gas can be removed, and the quality of the flue gas is improved.
As a specific embodiment of the invention, the side wall of the stop block 10 is provided with a downward rectangular groove 15, the rectangular groove 15 is used for blocking dust, and when in use, when fine particles pass through the surface of the stop block 10, the stop block 10 has a general blocking effect on the fine particles, so that a single fine particle can be captured by the stop block 10 after being rotated for multiple times; the side wall of the block 10 is provided with a downward rectangular groove 15 so that fine particle dust enters the rectangular groove 15 when passing through the surface of the block 10, thereby rapidly capturing the fine particle dust; slurry sprayed from the spray head 7 flows downwards along the rectangular groove 15 and simultaneously carries out dust removal on fine particle dust in the rectangular groove 15, so that the rectangular groove 15 can continuously carry out dust removal, and the dust removal capability of the stop block 10 is improved.
When the wet flue gas desulfurization and denitration technology works, the sulfur dioxide and nitrogen oxide in the flue gas are removed by spraying slurry into the flue gas, and the flue gas is not fully contacted with the slurry, and the solubility of a calcium-based desulfurizer in the slurry is low, so that the flue gas desulfurization and denitration effect is poor; the cyclone body is arranged, so that the flue gas enters the cyclone body, coarse particles in the flue gas are filtered after passing through the cyclone body, and the flue gas is discharged out of the cyclone body from the overflow pipe 3 with fine particles; the flue gas enters the connecting pipe 5 from the overflow pipe 3 and then enters the cylindrical box 4, and the flue gas gathers at the bottom of the cylindrical box 4, moves upwards and is discharged from the gas outlet pipe 9 at the top of the cylindrical box 4; when the flue gas passes through the circular ring 6, the spray head 7 on the circular ring 6 sprays slurry pumped by a water pump, so that the flue gas is discharged after passing through the slurry; the flue gas fully contacts the slurry when passing through the slurry, so that sulfur dioxide and nitrogen oxide in the flue gas fully react with urea in the slurry and various calcium-based absorbents, and the sulfur dioxide and nitrogen oxide in the flue gas are removed; meanwhile, fine particles in the flue gas are intercepted by the slurry and fall along the slurry when passing through the slurry, and are finally discharged from the water outlet pipe, so that the dust amount in the flue gas is reduced, and the purity of the flue gas is improved; the spray head 7 is of a flat structure, so that the thickness of liquid sprayed out of the spray head 7 is relatively thin, and smoke is prevented from being difficult to pass through; meanwhile, the spray heads 7 are in a horn-shaped structure, so that the slurry sprayed out of the spray heads 7 is splayed, and the range of the slurry sprayed out by the spray heads 7 is larger; the grout sprayed by the plurality of spray heads 7 forms a finished sealing pattern, so that the grout covers the flow channel of the flue gas, and the flue gas can uniformly pass through the grout and fully react with the grout.
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 a SOx/NOx control dust collector with swirler, includes the swirler body, the swirler body includes inlet pipe (1), casing (2) and overflow pipe (3), overflow pipe (3) are used for discharging the inside flue gas of casing (2), its characterized in that: the top end of the overflow pipe (3) is of a closed structure, two cylindrical boxes (4) are symmetrically installed at the top end of the shell (2), a connecting pipe (5) is fixed between each cylindrical box (4) and the overflow pipe (3), the connecting pipe (5) is used for communicating the inner cavities of the cylindrical boxes (4) and the overflow boxes, a circular ring (6) is fixed in the middle of the inner cavity of each cylindrical box (4), the circular ring (6) is of a cavity structure, more than two spray heads (7) are equidistantly arranged on the inner side wall of the circular ring (6) along the circumferential direction of the circular ring, the spray heads (7) are communicated with the inner cavity of the circular ring (6), a straight pipe (8) is arranged at the top end of each cylindrical box (4), the bottom end of each straight pipe (8) is communicated with the inner cavity of the circular ring (6) through a hose, a water pump is connected to the top end of each, the dust collector is characterized in that a water outlet pipe is arranged at the bottom end of the cylindrical box (4), and a controller is fixed on the outer side wall of the cylindrical box (4) and used for controlling the dust collector to work.
2. The desulfurization, denitrification and dust removal device with the cyclone as claimed in claim 1, wherein: the spray head (7) is of a flat structure, and the section of a channel of the spray head (7) is of a horn-shaped structure.
3. The desulfurization, denitrification and dust removal device with the cyclone as claimed in claim 1, wherein: the inside wall of cylindricality case (4) has arranged dog (10) more than two along its circumference equidistance, connecting pipe (5) are the arc structure, connecting pipe (5) are tangent with cylindricality case (4) lateral wall.
4. The desulfurization, denitrification and dust removal device with the cyclone as claimed in claim 3, wherein: the utility model discloses a fan, including cylindricality case (4), generator (11), fan and generator (11), cylindricality case (4) inner chamber bottom mounting has generator (11), generator (11) top rotates and is connected with the fan, fan and generator (11) electric connection, the fan includes flabellum (12), it has deep bead (13) to run through fixed mounting on flabellum (12), cylindricality case (4) inner chamber top is fixed with more than two parallel arrangement's resistance wire (14) through the mounting panel, resistance wire (14) and generator (11) electric connection.
5. The desulfurization, denitrification and dust removal device with the cyclone as claimed in claim 3, wherein: the top of the stop block (10) and the direction towards the air outlet of the connecting pipe (5) are provided with pointed ends, and the stop block (10) is made of activated carbon materials.
6. The desulfurization, denitrification and dust removal device with the cyclone as claimed in claim 5, wherein: the side wall of the stop block (10) is provided with a downward rectangular groove (15), and the rectangular groove (15) is used for blocking dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144322.9A CN111282429A (en) | 2020-03-04 | 2020-03-04 | SOx/NOx control dust collector with swirler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010144322.9A CN111282429A (en) | 2020-03-04 | 2020-03-04 | SOx/NOx control dust collector with swirler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111282429A true CN111282429A (en) | 2020-06-16 |
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ID=71020832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010144322.9A Withdrawn CN111282429A (en) | 2020-03-04 | 2020-03-04 | SOx/NOx control dust collector with swirler |
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| Country | Link |
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| CN (1) | CN111282429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744347A (en) * | 2020-07-02 | 2020-10-09 | 天津市英格环保科技有限公司 | Waste gas treatment process for threonine production |
-
2020
- 2020-03-04 CN CN202010144322.9A patent/CN111282429A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744347A (en) * | 2020-07-02 | 2020-10-09 | 天津市英格环保科技有限公司 | Waste gas treatment process for threonine production |
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