CN113663502A - Novel SDA reaction tower and application - Google Patents
Novel SDA reaction tower and application Download PDFInfo
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- CN113663502A CN113663502A CN202110975397.6A CN202110975397A CN113663502A CN 113663502 A CN113663502 A CN 113663502A CN 202110975397 A CN202110975397 A CN 202110975397A CN 113663502 A CN113663502 A CN 113663502A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 48
- 239000003546 flue gas Substances 0.000 claims description 48
- 239000007789 gas Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 31
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000002745 absorbent Effects 0.000 abstract description 4
- 239000002250 absorbent Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000003595 mist Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 30
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 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
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- 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
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a novel SDA reaction tower, which comprises an SDA reaction tower body, an SDA rotary atomizing head, a smoke curtain device, a smoke outlet filtering device and a discharge port, wherein the SDA reaction tower body comprises a tower body, the discharge port and a smoke outlet; the discharge port can smoothly discharge materials without blocking. The reaction tower not only ensures the SDA reaction efficiency, but also effectively solves the problems of tower wall abrasion and scaling in the reaction process of the absorbent of the conventional SDA reactor, for example, a smoke curtain arranged on the tower wall can effectively avoid the friction scaling of the tower wall caused by the rotation of entrained liquid drops and the abrasion of the tower wall caused by particulate matters contained in the mist drops after the original smoke (unpurified smoke) is contacted with the mist drops.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a novel SDA reaction device and application thereof.
Background
In the field of flue gas desulfurization, a SDA (Strand-extension Stroke) process is mostly adopted in waste incineration flue gas, sintering flue gas and coke oven flue gas desulfurization, lime water is mostly adopted in the SDA process to prepare lime slurry with a solid content of 20% -25%, 30-80 micron fog drops are generated by an atomizer and sprayed into an absorption tower, the flue gas is fully contacted with the lime slurry drops of the fog drops, acidic substances such as sulfur dioxide in the flue gas are absorbed instantly, and simultaneously, the contained water is evaporated and dried, so that the aims of removing the sulfur dioxide and other acidic media are fulfilled. In a traditional SDA reaction tower, flue gas rises in a rotating manner, and absorbent fog drops are wrapped by the flue gas and are easily dried and adhered to the inner wall of the reaction tower, so that the tower wall is abraded, the dust content of the flue gas at a scaling outlet is large, the outlet is easily blocked, and the like.
Through searching, no patent publication related to the present patent application has been found.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel SDA reaction device and application thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a novel SDA reaction tower comprises an SDA reaction tower body, an SDA rotary atomizing head, a smoke curtain device, a smoke outlet filtering device and a discharge port, wherein the SDA reaction tower body comprises a tower body, a discharge port and a smoke outlet, the SDA rotary atomizing head is arranged at the top of the tower body, the smoke curtain device is arranged at the upper part of the tower body, the smoke curtain device can make air blow against the wall to form a smoke curtain, the smoke outlet filtering device is arranged in the tower body and is connected with the smoke outlet, and the smoke outlet filtering device can filter droplet dust in smoke at the smoke outlet; the discharge port can smoothly discharge materials without blocking.
Further, the flue gas curtain device includes the air supply, the pipeline, air inlet and nozzle, the air supply is connected the setting with the input of pipeline, SDA reaction tower body upper surface is close to the tower lateral wall and is provided with a plurality of air inlets along the circumferencial direction equipartition interval, the air inlet air supply is one kind or several kinds in the air or the clean flue gas and mixes, the output of pipeline is connected the setting with the input of air inlet, the output of this air inlet is provided with the nozzle, the nozzle shape is duckbilled, nozzle export cross section is rectangle, rectangular minor face length is 50-100 of long edge length, air inlet flue gas pressure is 3000 + 10000 pa.
Further, the flue gas outlet comprises a vertical outlet section and a horizontal outlet section which are communicated and vertically arranged, the vertical outlet section is arranged along the vertical direction, the horizontal outlet section is arranged along the horizontal direction, the bottom of the vertical outlet section is arranged in an outlet conical section of the discharge port, the bottom of the vertical outlet section is arranged 3.5-5.5m above the discharge end of the discharge port, and the bottom of the vertical outlet section is connected with a flue gas outlet filtering device;
the flue gas outlet filtering device comprises a plurality of V-shaped baffle groups arranged in the vertical direction, each V-shaped baffle group comprises a plurality of V-shaped baffles, each V-shaped baffle is longitudinally arranged, the plurality of V-shaped baffles are horizontally arranged, and the V-shaped baffles in the two adjacent V-shaped baffle groups are staggered at intervals.
Further, the cross sections of the vertical outlet section and the horizontal outlet section are circular, oval, square or rectangular.
Further, the width of the multilayer V-shaped baffle is 150mm-550 mm.
Furthermore, an anti-corrosion anti-sticking coating layer is tightly arranged on the outer surface of the V-shaped baffle.
Furthermore, the V-shaped baffle is made of alloy or organic resin material.
Further, the discharge gate includes export conic section and the straight section of export that upper and lower intercommunication set up, and the export conic section sets up to narrow circular cone under wide, and the identical slip is provided with the scraper blade on the internal surface of the well lower part in the export conic section, the scraper blade is including being connected metal sheet and the silica gel board that sets up, the inner wall setting of export conic section is hugged closely to the lower surface of silica gel board, and the upper surface of silica gel board is connected and is set up the metal sheet, and the metal sheet is connected with the spiral pay-off and sets up, and the spiral feeder can drive the scraper blade and be rotatory circular motion, scrapes the powder into the spiral feeder in the export conic section, and the spiral feeder is in the same place with the straight section of export admittedly. This kind of structure of this discharge gate can effectively avoid the feed opening to block up.
Furthermore, the internal fan blades of the spiral feeder are spiral and are arranged in a rotating mode around the center of the straight section of the outlet.
The novel SDA reaction tower is applied to the aspect of flue gas desulfurization.
The invention has the advantages and effects that:
1. the reaction tower of the invention not only ensures the SDA reaction efficiency, but also effectively solves the problems of tower wall abrasion and scaling in the reaction process of the absorbent of the conventional SDA reactor, for example, a smoke curtain arranged on the tower wall can effectively avoid friction scaling of the tower wall caused by the rotation of entrained liquid drops and the abrasion of the tower wall caused by particulate matters contained in the mist drops after the original smoke (unpurified smoke) is contacted with the mist drops.
2. The flue gas and the fog drops have a large amount of dust after contact reaction and drying, so that the problems of high working pressure, easy failure and the like of a subsequent dust remover are caused, and the flue gas outlet filtering device arranged in the tower greatly reduces the dust content of an outlet by filtering and colliding flue gas fluid with the outlet, reduces the mass percentage by 40-60 percent, and greatly relieves the subsequent working pressure. The dust content of the outlet flue gas is reduced by 40-60%, and meanwhile, the filtering device is arranged below the flue opening, so that the blockage caused by the deposition of dried dust at the outlet is effectively avoided.
3. The discharge port of the SDA accumulates a large amount of dust to be discharged through the discharge port, the dust is not completely dried, the outlet is very easy to be blocked, and the scraper plate and the spiral feeder are arranged at the discharge port. The scraper blade is driven to rotate when the spiral discharging device rotates, and dust deposited on the outlet cone section is brought into the spiral discharging device through scraping, so that the problem that the discharge port of the SDA discharge port is easily blocked is effectively solved by smooth discharge.
Drawings
FIG. 1 is a schematic view of a structural connection of a reaction column of the present invention.
Detailed Description
The present invention will be further described with reference to specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The raw materials used in the invention are all conventional commercial products if no special description is provided, the method used in the invention is all conventional methods in the field if no special description is provided, and the mass of all the materials used in the invention is the conventional use mass. The structures, connection relations, etc., which are not described in detail in the present invention, can be understood as conventional technical means in the art.
A novel SDA reaction tower is shown in figure 1, and comprises an SDA reaction tower body 5, an SDA rotary atomizing head 1, a smoke curtain device, a smoke outlet filtering device 3 and a discharge port 4, wherein the SDA reaction tower body comprises a tower body, a discharge port and a smoke outlet (not numbered in the figure), the SDA rotary atomizing head is arranged at the top of the tower body, the smoke curtain device is arranged at the upper part of the tower body, the smoke curtain device can make air blow against the wall to form a smoke curtain, the smoke outlet filtering device is arranged in the tower body and is connected with the smoke outlet, and the smoke outlet filtering device can filter droplet dust in smoke at the smoke outlet; the discharge port can smoothly discharge materials without blocking.
In this embodiment, the flue gas curtain device includes the air supply, the pipeline, air inlet (all not shown in the figure) and nozzle 5, the air supply is connected with the input of pipeline and sets up, SDA reaction tower body upper surface is close to the tower lateral wall and is provided with a plurality of air inlets along the circumferencial direction equipartition interval, the air inlet air supply is one kind or several kinds of mixtures in the air or the clean flue gas, the output of pipeline is connected with the input of air inlet and sets up, the output of this air inlet is provided with the nozzle, the nozzle shape is duckbilled, nozzle outlet cross section is the rectangle, rectangular minor face length is long side length 50-100 one in, make the air adherent blow, air inlet flue gas pressure is 3000 and gives up 10000pa, form the flue gas curtain, prevent absorbent wearing and tearing tower wall, adhesion scale deposit.
In this embodiment, the exhanst gas outlet is including being linked together vertical export section 32 and the horizontal export section 31 of perpendicular setting, and vertical export section sets up along vertical direction, and the horizontal export section sets up along horizontal direction, and the bottom of vertical export section sets up in the export conic section 42 of discharge gate, and the bottom of this vertical export section sets up in the discharge end of discharge gate top 3.5-5.5m department, and the bottom of this vertical export section is connected and is provided with exhanst gas outlet filter equipment, and filter equipment can effectively filter the droplet dust in the flue gas. Reducing the subsequent dust removal pressure;
the fume outlet filtering device comprises a plurality of V-shaped baffle groups arranged in the vertical direction, each V-shaped baffle group comprises a plurality of V-shaped baffles 33, each V-shaped baffle is longitudinally arranged, the V-shaped baffles are arranged in the horizontal direction, the V-shaped baffles in the two layers of adjacent V-shaped baffle groups are staggered vertically, the baffles can effectively block dust in fume, the dust can be gathered on the surface of each V-shaped baffle in a striking manner, and then drops, the fume outlet is avoided entering, the dust can be more effectively filtered at the intervals of the multiple layers of baffles, and the follow-up dust removal pressure is reduced.
Preferably, the cross section of the vertical outlet section and the horizontal outlet section can adopt a circular shape, an oval shape and a square rectangular shape.
Preferably, the width of the multilayer V-shaped baffle is 150mm-550 mm.
Preferably, the outer surface of the V-shaped baffle is tightly provided with an anti-corrosion anti-sticking coating layer.
Preferably, the material of the V-shaped baffle is made of alloy or organic resin.
In this embodiment, the discharge gate includes export conic section and the straight section of export 41 that upper and lower phase intercommunication set up, and the export conic section sets up to narrow circular cone under wide, and the identical slip is provided with scraper blade 43 on the internal surface of the well lower part in the export conic section, the scraper blade is including being connected metal sheet and the silica gel board (all not shown in the figure) that sets up, the inner wall setting of export conic section is hugged closely to the lower surface of silica gel board, and the upper surface of silica gel board is connected and is set up the metal sheet, and the metal sheet is connected the setting with spiral feeder (optimally, through the bolt), and spiral feeder can drive the scraper blade and be rotatory circular motion, scrapes into spiral feeder with the powder in the export conic section, and spiral feeder is in the same place with the straight section of export admittedly. This kind of structure of this discharge gate can effectively avoid the feed opening to block up.
In this embodiment, the inner blades of the screw feeder are spiral and are rotatably disposed around the center of the straight section of the outlet. And the waste materials are conveyed by the screw to prevent the feed opening from being blocked.
The working principle of the SDA reaction tower is as follows:
it is known that all SDA reaction towers are mixed by flue gas and limestone or quicklime fog drops, the flue gas drives the fog drops to rotate, flow and dry in the reaction towers, the reaction of the flue gas and the fog drops is completed, the reaction ratio of the limestone or quicklime used for the reaction of the SDA to SO2 to be removed is very large, the amount of the quicklime and the limestone mixed in the flue gas is huge, dried liquid drops carried in the flue gas can become dust to rub against the tower wall due to the influence of centrifugal force, SO that the abrasion and scaling of the tower wall are caused, the amount of dust carried in the purified flue gas is huge, SO that the subsequent dust removal work is difficult, the dust which is not completely reacted is mainly discharged from a discharge port of the SDA, and the powder which is not completely dried is adhered to the discharge port to cause blockage.
1. The flue gas curtain arranged on the tower wall can effectively prevent the friction scaling of the tower wall caused by the rotation of entrained liquid drops and the abrasion of the tower wall caused by particulate matters contained in the fog drops after the original flue gas (unpurified flue gas) is contacted with the fog drops.
2. The flue gas and the fog drops have a large amount of dust after contact reaction and drying, so that the problems of high working pressure, easy failure and the like of a subsequent dust remover are caused, and the flue gas outlet filtering device arranged in the tower greatly reduces the dust content of an outlet by filtering and colliding flue gas fluid with the outlet, reduces the mass percentage by 40-60 percent, and greatly relieves the subsequent working pressure. The dust content of the outlet flue gas is reduced by 40-60%, and meanwhile, the filtering device is arranged below the flue opening, so that the blockage caused by the deposition of dried dust at the outlet is effectively avoided.
3. The discharge port of the SDA accumulates a large amount of dust to be discharged through the discharge port, the dust is not completely dried, the outlet is very easy to be blocked, and the scraper plate and the spiral feeder are arranged at the discharge port. The scraper blade is driven to rotate when the spiral discharging device rotates, and dust deposited on the outlet cone section is brought into the spiral discharging device through scraping, so that the dust is discharged smoothly, and the problem that the discharge port of the SDA discharge port is blocked easily is effectively solved.
Although the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications may be made without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments disclosed.
Claims (10)
1. A novel SDA reaction tower is characterized in that: the reaction tower comprises an SDA reaction tower body, an SDA rotary atomizing head, a flue gas curtain device, a flue gas outlet filtering device and a discharge port, wherein the SDA reaction tower body comprises a tower body, the discharge port and a flue gas outlet; the discharge port can smoothly discharge materials without blocking.
2. The novel SDA reaction column according to claim 1, wherein: the flue gas curtain device comprises a gas source, a pipeline, gas inlets and nozzles, wherein the gas source is connected with the input end of the pipeline, a plurality of gas inlets are uniformly distributed and spaced on the upper surface of the SDA reaction tower body close to the side wall of the tower along the circumferential direction, the gas source of the gas inlets is one or a mixture of air and clean flue gas, the output end of the pipeline is connected with the input end of the gas inlets, the nozzles are arranged at the output end of the gas inlets, the shapes of the nozzles are duckbilled, the cross section of the outlet of each nozzle is rectangular, the length of the short side of the rectangle is 50-100 times of the length of the long side, and the flue gas pressure of each gas inlet is 3000-enriched 10000 pa.
3. The novel SDA reaction column according to claim 1, wherein: the flue gas outlet comprises a vertical outlet section and a horizontal outlet section which are communicated and vertically arranged, the vertical outlet section is arranged along the vertical direction, the horizontal outlet section is arranged along the horizontal direction, the bottom of the vertical outlet section is arranged in an outlet conical section of the discharge port, the bottom of the vertical outlet section is arranged 3.5-5.5m above the discharge end of the discharge port, and the bottom of the vertical outlet section is connected with a flue gas outlet filtering device;
the flue gas outlet filtering device comprises a plurality of V-shaped baffle groups arranged in the vertical direction, each V-shaped baffle group comprises a plurality of V-shaped baffles, each V-shaped baffle is longitudinally arranged, the plurality of V-shaped baffles are horizontally arranged, and the V-shaped baffles in the two adjacent V-shaped baffle groups are staggered at intervals.
4. The novel SDA reaction column according to claim 3, wherein: the cross sections of the vertical outlet section and the horizontal outlet section are circular, oval, square or rectangular.
5. The novel SDA reaction column according to claim 3, wherein: the width of the multilayer V-shaped baffle is 150mm-550 mm.
6. The novel SDA reaction column according to claim 3, wherein: and an anti-corrosion and anti-sticking coating layer is tightly arranged on the outer surface of the V-shaped baffle.
7. The novel SDA reaction column according to claim 3, wherein: the V-shaped baffle is made of alloy or organic resin materials.
8. The novel SDA reaction column as set forth in any of claims 1 to 7, wherein: the discharge gate includes export conic section and the straight section of export that upper and lower intercommunication set up, and the export conic section sets up to width under, and it is provided with the scraper blade to coincide to slide on the internal surface of the well lower part in the export conic section, the scraper blade is including being connected metal sheet and the silica gel board that sets up, the inner wall setting of export conic section is hugged closely to the lower surface of silica gel board, and the upper surface of silica gel board is connected and is set up the metal sheet, and the metal sheet is connected with spiral pay-off and sets up, and spiral feeder can drive the scraper blade and be rotatory circular motion, scrapes into spiral feeder with the powder in the export conic section, and spiral feeder is in the same place with the straight section of export is adorned admittedly.
9. The novel SDA reaction column according to claim 8, wherein: the internal fan blades of the spiral feeder are spiral and are arranged in a rotating mode around the center of the straight section of the outlet.
10. Use of the novel SDA reaction column according to any of claims 1 to 7 for flue gas desulfurization.
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CN210138544U (en) * | 2019-06-04 | 2020-03-13 | 航天长征化学工程股份有限公司 | Dust-containing steam purification device |
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CN213141419U (en) * | 2020-08-28 | 2021-05-07 | 宁夏恒基环保科技有限公司 | Device for producing carbonized materials |
CN213513207U (en) * | 2020-08-13 | 2021-06-22 | 吉林鑫达钢铁有限公司 | Dewatering and pollution discharging device for blast furnace gas conveying net |
CN216171306U (en) * | 2021-08-24 | 2022-04-05 | 航天环境工程有限公司 | Novel SDA reaction tower |
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