CN111495132A - Flue gas desulfurization and denitrification process - Google Patents
Flue gas desulfurization and denitrification process Download PDFInfo
- Publication number
- CN111495132A CN111495132A CN202010374261.5A CN202010374261A CN111495132A CN 111495132 A CN111495132 A CN 111495132A CN 202010374261 A CN202010374261 A CN 202010374261A CN 111495132 A CN111495132 A CN 111495132A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- tower body
- plate
- inverted cone
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of flue gas purification, and particularly relates to a flue gas desulfurization and denitrification process; the dedusting and purifying tower used in the process comprises a tower body, wherein an inverted cone plate is arranged at the position, close to the bottom, of the inner side of the tower body, a plurality of through holes are formed in the inverted cone plate, and the top ends of the through holes are gradually inclined towards the vertical center line of the tower body; according to the invention, the inverted cone plate is arranged at the position close to the bottom of the inner side of the tower body, meanwhile, the aqueous solution is poured into the tower body, the dust-containing flue gas is introduced to the bottom of the inverted cone plate from the introduction pipe, part of impurities are dissolved into the aqueous solution, the dust content in the flue gas is reduced, the flue gas can move upwards along the bottom surface of the inverted cone plate in an inclined mode, the diffusion path of the flue gas in the aqueous solution is increased, the dissolving amount of the dust in the flue gas is increased, meanwhile, the flue gas can pass through the inverted cone plate from different through holes, and the flue gas passing through the through holes can be sprayed out to the vertical central line of the tower body in an inclined mode, so that the operation path of the flue gas.
Description
Technical Field
The invention belongs to the technical field of flue gas purification, and particularly relates to a flue gas desulfurization and denitrification process.
Background
With the development of economy in China, environmental pollution caused by energy consumption is more and more serious. Among them, the destruction of atmospheric fumes, acid rain, greenhouse effect and ozone layer has become four major killers that harm human survival. In China, harmful substances such as sulfur dioxide, nitrogen oxide and the like are mainly generated in the coal burning process. Harmful substances such as smoke dust, sulfur dioxide, nitrogen oxides and the like contained in the discharged coal-fired flue gas are main sources of air pollution and acid rain. Moreover, the type of acid rain in recent years has been changed from sulfuric acid type to sulfuric acid and nitric acid composite type, if the treatment of nitrogen oxides in flue gas is not enhanced, the total amount of nitrogen oxides and the specific gravity of the nitrogen oxides in air pollutants are increased, and sulfur dioxide is possibly replaced to become a main pollutant in the atmosphere. Therefore, the desulfurization and denitrification in the flue gas become the focus of current research. The prior common flue gas wet desulphurization technology and the fixed denitration technology.
The prior art also discloses some technical schemes related to flue gas purification, for example, chinese patent with application number 2018103393231 discloses a process for dedusting, desulfurizing and denitrating industrial flue gas, which comprises sleeving a frustum-shaped wind gathering sleeve on the side wall of a purification cylinder to facilitate the external flue gas to enter the interior of the purification cylinder, and simultaneously cooling the flue gas by diversion through a diversion structure to effectively prevent the high temperature of the flue gas from affecting the working efficiency, so that the flue gas is primarily settled in a dust-deposition structure through the diversion structure, and then the flue gas can uniformly pass through an activated carbon adsorption box to improve the utilization efficiency of the activated carbon in the activated carbon adsorption box, but the flue gas filters large granular substances through the activated carbon adsorption mode, after long-time use, the large granular substances filtered from the activated carbon are more, and are easy to cause blockage in the use process and need to be cleaned irregularly, the invention provides a flue gas desulfurization and denitration process, which can reduce the dust content in air, further reduce the blockage probability of activated carbon and improve the working efficiency.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a flue gas desulfurization and denitrification process, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a flue gas desulfurization and denitrification process comprises the following steps:
s1: introducing flue gas into the tower body from an inlet pipe of the dust removal purification tower, introducing the flue gas into an aqueous solution at the bottom of the inverted cone plate, dissolving impurities contained in the flue gas into the aqueous solution, and then, raising the flue gas to the activated carbon adsorption plate from the through hole;
s2: the activated carbon adsorption plate in S1 further adsorbs impurities to the flue gas, and then the flue gas reaching the top of the tower body is introduced into a desulfurization tower for desulfurization treatment;
s3: introducing the flue gas subjected to desulfurization treatment in the desulfurization tower in S2 into denitration equipment for denitration treatment;
s4: introducing the hot flue gas subjected to the final purification treatment in the step S3 into the air close to the bottom of the tower body, so that the flue gas treatment can be completed; the heat in the hot flue gas heats the aqueous solution in the tower body, so that the problem that the dissolution of particles is influenced due to the excessively low temperature of the aqueous solution is solved;
the dedusting and purifying tower in the S1 comprises a tower body, wherein an inverted cone plate is arranged at a position close to the bottom inside the tower body, a plurality of through holes are formed in the inverted cone plate, the top ends of the through holes are gradually inclined towards the vertical center line of the tower body, a plurality of circles are distributed on the circumference of the through holes, and the height of each circle is increased in sequence; the wall thickness of the tower body at the top of the inverted cone plate is inserted with a lead-in pipe, and one end of the lead-in pipe penetrates through the middle of the inverted cone plate and extends to a position close to the bottom of the tower body; an active carbon adsorption plate is arranged in the tower body at the top of the lead-in pipe; the bottom of the tower body is provided with a tower seat; during working, in the existing flue gas desulfurization and denitration process, large-particle impurities in the flue gas need to be removed in advance, so that the blockage of subsequent treatment equipment is reduced, but the existing dedusting and purifying tower filters large-particle substances in an activated carbon adsorption mode, and after the dedusting and purifying tower is used for a long time, the large-particle substances filtered from the activated carbon are more, so that the blockage is easily caused in the using process, the large-particle substances need to be cleaned irregularly, and the working efficiency is reduced, so that the invention mainly solves the problems of reducing the dust content in the air, further reducing the blockage probability at the activated carbon and improving the working efficiency; the specific measures and the using process are as follows: the inverted cone plate is arranged at the position, close to the bottom, of the inner side of the tower body, meanwhile, the aqueous solution is poured into the tower body, the dust-containing smoke is introduced to the bottom of the inverted cone plate from the introduction pipe, part of impurities are dissolved into the aqueous solution, the dust content in the smoke is reduced, the smoke can move obliquely upwards along the bottom surface of the inverted cone plate, the diffusion path of the smoke in the aqueous solution is increased, the dissolving amount of dust in the smoke is further increased, meanwhile, the top end of the through hole is gradually inclined towards the vertical center line of the tower body, a plurality of circles are arranged on the circumference of the through hole, the height of each circle is sequentially increased, the smoke can pass through the inverted cone plate from different through holes, the smoke passing through the through hole can be obliquely sprayed towards the vertical center line of the tower body, and the running path of the smoke in; after the flue gas is subjected to primary dust removal by the water solution, the flue gas rises to the activated carbon adsorption plate from the through hole, the flue gas treated by the activated carbon contains less large-particle substances, and finally the flue gas is conveyed to the next procedure from the top of the tower body.
Preferably, a fixed cylinder is fixedly connected to the inverted cone plate at the top of the through hole at the top, a mounting ring is fixedly connected to the position, close to the top, of the inner side of the fixed cylinder, the outer side of the mounting ring is connected with the fixed cylinder through a fixing rod, a fixing shaft is rotatably connected to the inner side of the mounting ring, a plurality of inclined plates are fixedly connected to the position, close to the bottom, of the fixing shaft, a plurality of extension rods are fixedly connected to the bottom ends of the inclined plates, a semicircular plate is fixedly connected to the inner side, close to the bottom, of the inverted cone plate in the through hole, and the semicircular plate is arranged at a; because contain a certain amount of indissoluble material in the flue gas, consequently when the flue gas is from the through-hole, because the blocking of semicircle board, consequently only half through-hole aperture size's flue gas enters into in the through-hole, the flue gas that gets into in the through-hole this moment can promote the swash plate and remove, and then drive the swash plate and rotate, when the swash plate rotates, can stir the flue gas in aqueous solution and the through-hole in reverse, stir indissoluble material in the flue gas, make indissoluble material schizolysis diminish, and then guarantee that the material after diminishing is bigger with the area of contact of aqueous solution, the dissolution probability of large granule material has been increased, simultaneously a plurality of extension bars of swash plate bottom are better to the effect of stirring the dispersion of air, the dissolution probability of large granule material has further been increased.
Preferably, the top of the fixed cylinder is in contact connection with a conical cover, and the conical cover is connected with the fixed rod through an elastic piece; a plurality of micropores are formed in the position, close to the top of the fixed cylinder, of the fixed cylinder along the circumferential direction; when the tolerance that gets into in the fixed cylinder is less, gas can spill over the fixed cylinder through the micropore, and then make gas spill over the back from the micropore, what can spray is farther, simultaneously when the tolerance that gets into in the fixed cylinder is more, the flue gas can promote the awl cover and rise, and then make the elastic component extension, gas not only spills over from the micropore, also spills over from the clearance between awl cover and fixed cylinder top, make the flue gas contact with the aqueous solution from the direction of different heights, and then guaranteed in the same time gas and the aqueous solution contact of a great amount, the dissolution of particulate matter in the flue gas has been guaranteed.
Preferably, a plurality of triangular blocks are uniformly distributed at the contact position of the bottom of the conical cover and the fixed cylinder in the circumferential direction, and the bottoms of the triangular blocks are tips and are inserted into the wall thickness of the bottom of the fixed cylinder; when the tolerance that gets into in the fixed cylinder is less, the triangle piece inserts in the wall thickness at fixed cylinder top, and when the tolerance that gets into in the fixed cylinder was more, the awl cover was promoted the back that rises, and the triangle piece slowly separates with the fixed cylinder, and then gaseous space department blowout from two inclined planes departments of triangle piece comes, comes with gas separation this moment, and then makes the area of contact grow of gas and aqueous solution, has guaranteed dissolving of granule.
Preferably, the inclined plate is provided with a plurality of pit slots, and the bottom ends of the pit slots are positioned on the surface of the inclined plate; because the surface of the inclined plate is provided with the plurality of pit grooves, and the bottom ends of the pit grooves are positioned on the surface of the inclined plate, a part of smoke enters the pit grooves, has a certain floating effect on the inclined plate, so that the inclined plate is easier to stir, the smoke entering the pit grooves is separated from the smoke positioned on the surface of the inclined plate, and the contact area of the smoke and the aqueous solution is further increased.
Preferably, foam particles are sprayed in the pits, and anti-corrosion paint is sprayed on the surfaces of the foam particles; the foam particles can have a buoyancy effect on the initial inclined plate, so that the inclined plate can rotate conveniently, and meanwhile, the anti-corrosion paint is sprayed on the surfaces of the foam particles, so that the corrosion of acid-base gas in smoke on the foam particles is reduced.
The invention has the technical effects and advantages that:
1. according to the invention, the inverted cone plate is arranged at the position close to the bottom of the inner side of the tower body, meanwhile, the aqueous solution is poured into the tower body, the dust-containing flue gas is introduced to the bottom of the inverted cone plate from the introduction pipe, part of impurities are dissolved into the aqueous solution, the dust content in the flue gas is reduced, the flue gas can move upwards along the bottom surface of the inverted cone plate in an inclined mode, the diffusion path of the flue gas in the aqueous solution is increased, the dissolving amount of the dust in the flue gas is increased, meanwhile, the flue gas can pass through the inverted cone plate from different through holes, and the flue gas passing through the through holes can be sprayed out to the vertical central line of the tower body in an inclined mode, so that the operation path of the flue gas.
2. According to the invention, only smoke with the aperture size of a half of the through hole enters the through hole through the blocking of the semicircular plate, the smoke entering the through hole can push the inclined plate to move, so that the inclined plate is driven to rotate, when the inclined plate rotates, the aqueous solution and the smoke in the through hole can be stirred in reverse, and insoluble substances in the smoke are stirred, so that the cracking of the insoluble substances is reduced, the contact area between the reduced substances and the aqueous solution is larger, the dissolving probability of large-particle substances is increased, meanwhile, the stirring and dispersing effects of the plurality of extension rods at the bottom of the inclined plate on the air are better, and the dissolving probability of the large-particle substances is further increased.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic perspective view of a dust-removal purification tower used in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view showing the position of the semicircular plate and the fixed cylinder in the present invention;
in the figure: the tower comprises a tower body 1, an inverted cone plate 2, a through hole 3, an inlet pipe 4, an activated carbon adsorption plate 5, a tower base 6, a fixed cylinder 7, a mounting ring 8, a fixed shaft 9, an inclined plate 10, an extension rod 11, a semicircular plate 12, a cone cover 13, an elastic part 14, a micropore 15, a triangular block 16, a pit slot 17 and a fixed rod 18.
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 flue gas desulfurization and denitration process of the present invention comprises the following steps:
s1: introducing flue gas into the tower body 1 from an inlet pipe 4 of the dust removal purification tower, introducing the flue gas into an aqueous solution at the bottom of the inverted cone plate 2, dissolving impurities contained in the flue gas into the aqueous solution, and then, raising the flue gas to an activated carbon adsorption plate 5 from the through hole 3;
s2: after the activated carbon adsorption plate 5 in the step S1 further adsorbs impurities to the flue gas, introducing the flue gas reaching the top of the tower body 1 into a desulfurization tower for desulfurization treatment;
s3: introducing the flue gas subjected to desulfurization treatment in the desulfurization tower in S2 into denitration equipment for denitration treatment;
s4: introducing the hot flue gas subjected to the final purification treatment in the step S3 into the air close to the bottom of the tower body 1, so as to complete the treatment of the flue gas; the heat in the hot flue gas heats the aqueous solution in the tower body 1, so that the problem that the dissolution of particles is influenced due to the excessively low temperature of the aqueous solution is solved;
the dedusting and purifying tower in the S1 comprises a tower body 1, wherein an inverted cone plate 2 is arranged at a position, close to the bottom, on the inner side of the tower body 1, a plurality of through holes 3 are formed in the inverted cone plate 2, the top ends of the through holes 3 gradually incline towards the vertical center line of the tower body 1, a plurality of circles are distributed on the circumference of each through hole 3, and the height of each circle is increased in sequence; the wall thickness of the tower body 1 at the top of the inverted cone plate 2 is inserted with a lead-in pipe 4, and one end of the lead-in pipe 4 penetrates through the middle of the inverted cone plate 2 and extends to a position close to the bottom of the tower body 1; an active carbon adsorption plate 5 is arranged in the tower body 1 at the top of the lead-in pipe 4; the bottom of the tower body 1 is provided with a tower seat 6; during working, in the existing flue gas desulfurization and denitration process, large-particle impurities in the flue gas need to be removed in advance, so that the blockage of subsequent treatment equipment is reduced, but the existing dedusting and purifying tower filters large-particle substances in an activated carbon adsorption mode, and after the dedusting and purifying tower is used for a long time, the large-particle substances filtered from the activated carbon are more, so that the blockage is easily caused in the using process, the large-particle substances need to be cleaned irregularly, and the working efficiency is reduced, so that the invention mainly solves the problems of reducing the dust content in the air, further reducing the blockage probability at the activated carbon and improving the working efficiency; the specific measures and the using process are as follows: the inverted cone plate 2 is arranged at the position, close to the bottom, of the inner side of the tower body 1, meanwhile, aqueous solution is poured into the tower body 1, dust-containing smoke is introduced to the bottom of the inverted cone plate 2 from the introduction pipe 4, part of impurities are dissolved into the aqueous solution, the dust content in the smoke is reduced, the smoke can move upwards along the bottom surface of the inverted cone plate 2 in an inclined mode, the diffusion path of the smoke in the aqueous solution is increased, the dissolving amount of dust in the smoke is increased, meanwhile, the top end of the through hole 3 is gradually inclined towards the vertical center line of the tower body 1, multiple circles are arranged on the circumference of the through hole 3, the height of each circle is sequentially increased, therefore, the smoke can pass through the inverted cone plate 2 from different through holes 3, the smoke passing through the through hole 3 can be sprayed towards the vertical center line of the tower body 1 in an inclined mode, and the running; after the flue gas is subjected to primary dust removal by the water solution, the flue gas rises to the activated carbon adsorption plate 5 from the through hole 3, the flue gas treated by the activated carbon contains less large-particle substances, and finally the flue gas is conveyed to the next procedure from the top of the tower body 1.
The inverted cone plate 2 at the top of the through hole 3 of the topmost through hole is fixedly connected with a fixed cylinder 7, the position, close to the top, of the inner side of the fixed cylinder 7 is fixedly connected with a mounting ring 8, the outer side of the mounting ring 8 is connected with the fixed cylinder 7 through a fixed rod 18, the inner side of the mounting ring 8 is rotatably connected with a fixed shaft 9, the position, close to the bottom, of the fixed shaft 9 is fixedly connected with a plurality of inclined plates 10, the bottom end of each inclined plate 10 is fixedly connected with a plurality of extension rods 11, the inner side, close to the bottom, of the inverted cone plate 2 in the through hole 3 is fixedly connected with a semicircular plate 12, and the semicircular plate 12 is arranged at; because the flue gas contains a certain amount of indissolvable material, consequently when the flue gas is from in the through-hole 3, because the blocking of semicircle board 12, consequently only half through-hole 3 aperture size's flue gas enters into in the through-hole 3, the flue gas that gets into in the through-hole 3 this moment can promote swash plate 10 and remove, and then drive swash plate 10 and rotate, when swash plate 10 rotated, can stir the flue gas in aqueous solution and the through-hole 3 in reverse, stir indissolvable material in the flue gas, make indissolvable material schizolysis diminish, and then guarantee that the material after diminishing is bigger with the area of contact of aqueous solution, the dissolution probability of large granule material has been increased, simultaneously a plurality of extension rods 11 of swash plate 10 bottom are better to the effect of stirring dispersion of air, the dissolution probability of large granule material has further been increased.
The top of the fixed cylinder 7 is in contact connection with a conical cover 13, and the conical cover 13 is connected with a fixed rod 18 through an elastic piece 14; a plurality of micropores 15 are formed in the position, close to the top, of the fixed cylinder 7 along the circumferential direction; when the tolerance that gets into in the fixed cylinder 7 is less, gas can spill over the fixed cylinder 7 through micropore 15, and then make gas spill over the back from micropore 15, can spray farther, simultaneously when the tolerance that gets into in the fixed cylinder 7 is more, the flue gas can promote awl cover 13 and rise, and then make the extension of elastic component 14, gas not only spills over from micropore 15, also spill over from the clearance between awl cover 13 and fixed cylinder 7 top, make the flue gas contact with the aqueous solution from the direction of different heights, and then guaranteed in the same time gas and the aqueous solution contact of a large amount, the dissolution of particulate matter in the flue gas has been guaranteed.
A plurality of triangular blocks 16 are uniformly distributed at the contact position of the bottom of the conical cover 13 and the fixed cylinder 7 in the circumferential direction, and the bottoms of the triangular blocks 16 are pointed ends and are inserted into the wall thickness of the bottom of the fixed cylinder 7; when the amount of gas entering the fixed cylinder 7 is small, the triangular block 16 is inserted into the wall thickness of the top of the fixed cylinder 7, when the amount of gas entering the fixed cylinder 7 is large, the conical cover 13 is pushed to rise, then the triangular block 16 is slowly separated from the fixed cylinder 7, and then the gas is sprayed out from the gap between the two inclined surfaces of the triangular block 16, at the moment, the gas is separated, so that the contact area between the gas and the aqueous solution is increased, and the dissolution of particles is ensured.
The inclined plate 10 is provided with a plurality of pit grooves 17, and the bottom ends of the pit grooves 17 are positioned on the surface of the inclined plate 10; because there are a plurality of pot holes 17 on the swash plate 10 surface, pot hole 17 bottom is located the swash plate 10 surface, consequently has some flue gas to enter into pot hole 17, has certain floating effect to swash plate 10, and then makes swash plate 10 change and be stirred, and the flue gas that enters into pot hole 17 has taken place the separation with the flue gas that is located the swash plate 10 surface, has further increased the area of contact of flue gas and aqueous solution.
Foam particles are sprayed in the pit 17, and anti-corrosion paint is sprayed on the surfaces of the foam particles; the foam particles can have a buoyancy effect on the initial inclined plate 10, so that the inclined plate 10 can conveniently rotate, and meanwhile, the anti-corrosion paint is sprayed on the surfaces of the foam particles, so that the corrosion of acid and alkali gas in smoke on the foam particles is reduced.
During working, in the existing flue gas desulfurization and denitration process, large-particle impurities in the flue gas need to be removed in advance, so that the blockage of subsequent treatment equipment is reduced, but the existing dedusting and purifying tower filters large-particle substances in an activated carbon adsorption mode, and after the dedusting and purifying tower is used for a long time, the large-particle substances filtered from the activated carbon are more, so that the blockage is easily caused in the using process, the large-particle substances need to be cleaned irregularly, and the working efficiency is reduced, so that the invention mainly solves the problems of reducing the dust content in the air, further reducing the blockage probability at the activated carbon and improving the working efficiency; the specific measures and the using process are as follows: the inverted cone plate 2 is arranged at the position, close to the bottom, of the inner side of the tower body 1, meanwhile, aqueous solution is poured into the tower body 1, dust-containing smoke is introduced to the bottom of the inverted cone plate 2 from the introduction pipe 4, part of impurities are dissolved into the aqueous solution, the dust content in the smoke is reduced, the smoke can move upwards along the bottom surface of the inverted cone plate 2 in an inclined mode, the diffusion path of the smoke in the aqueous solution is increased, the dissolving amount of dust in the smoke is increased, meanwhile, the top end of the through hole 3 is gradually inclined towards the vertical center line of the tower body 1, multiple circles are arranged on the circumference of the through hole 3, the height of each circle is sequentially increased, therefore, the smoke can pass through the inverted cone plate 2 from different through holes 3, the smoke passing through the through hole 3 can be sprayed towards the vertical center line of the tower body 1 in an inclined mode, and the running; after the flue gas is subjected to primary dust removal by the water solution, the flue gas rises to the activated carbon adsorption plate 5 from the through hole 3, the flue gas treated by the activated carbon contains less large-particle substances, and finally the flue gas is conveyed to the next procedure from the top of the tower body 1.
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. A flue gas desulfurization and denitrification process is characterized in that: the process comprises the following steps:
s1: introducing flue gas into the tower body (1) from an inlet pipe (4) of the dust removal purification tower, introducing the flue gas into an aqueous solution at the bottom of the inverted cone plate (2), dissolving impurities contained in the flue gas into the aqueous solution, and then ascending the flue gas to an activated carbon adsorption plate (5) from the through hole (3);
s2: the activated carbon adsorption plate (5) in S1 further adsorbs impurities to the flue gas, and then the flue gas reaching the top of the tower body (1) is introduced into a desulfurization tower for desulfurization treatment;
s3: introducing the flue gas subjected to desulfurization treatment in the desulfurization tower in S2 into denitration equipment for denitration treatment;
s4: the hot flue gas which is finally purified in the S3 is introduced into the air of the tower body (1) close to the bottom, and then the flue gas treatment can be completed;
the dedusting and purifying tower in the S1 comprises a tower body (1), wherein an inverted cone plate (2) is arranged at a position, close to the bottom, on the inner side of the tower body (1), a plurality of through holes (3) are formed in the inverted cone plate (2), the top ends of the through holes (3) are gradually inclined towards the vertical center line of the tower body (1), a plurality of circles are distributed on the circumference of each through hole (3), and the height of each circle is sequentially increased; a lead-in pipe (4) is inserted into the wall thickness of the tower body (1) at the top of the inverted cone plate (2), and one end of the lead-in pipe (4) penetrates through the middle of the inverted cone plate (2) and extends to a position close to the bottom of the tower body (1); an activated carbon adsorption plate (5) is arranged in the tower body (1) at the top of the lead-in pipe (4); the tower body (1) is provided with a tower seat (6) at the bottom.
2. The flue gas desulfurization and denitrification process according to claim 1, characterized in that: the topmost through-hole (3) top the last solid fixed cylinder (7) that has linked firmly of back taper plate (2), the position department that solid fixed cylinder (7) inboard is close to the top has linked firmly collar (8), and the collar (8) outside is connected with solid fixed cylinder (7) through dead lever (18), and collar (8) inboard is rotated and is connected with fixed axle (9), and the position department that is close to the bottom on fixed axle (9) has linked firmly a plurality of swash plates (10), swash plate (10) bottom has linked firmly a plurality of extension rods (11), is close to its bottom in through-hole (3) back taper plate (2) inboard has linked firmly half disc (12), and half disc (12) set up in the position department of keeping away from the vertical central line of tower body (1).
3. The flue gas desulfurization and denitrification process according to claim 2, characterized in that: the top of the fixed cylinder (7) is in contact connection with a conical cover (13), and the conical cover (13) is connected with a fixed rod (18) through an elastic piece (14); a plurality of micropores (15) are formed in the position, close to the top of the fixed cylinder (7), of the fixed cylinder along the circumferential direction.
4. The flue gas desulfurization and denitrification process according to claim 3, characterized in that: the conical cover (13) bottom is equipped with a plurality of triangle blocks (16) with the position department circumference equipartition of fixed cylinder (7) contact, and triangle block (16) bottom is most advanced, and inserts in the wall thickness of fixed cylinder (7) bottom.
5. The flue gas desulfurization and denitrification process according to claim 2, characterized in that: a plurality of pit grooves (17) are formed in the inclined plate (10), and the bottom ends of the pit grooves (17) are located on the surface of the inclined plate (10).
6. The flue gas desulfurization and denitrification process according to claim 5, characterized in that: foam particles are sprayed in the pit groove (17), and anti-corrosion paint is sprayed on the surfaces of the foam particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374261.5A CN111495132A (en) | 2020-05-06 | 2020-05-06 | Flue gas desulfurization and denitrification process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374261.5A CN111495132A (en) | 2020-05-06 | 2020-05-06 | Flue gas desulfurization and denitrification process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111495132A true CN111495132A (en) | 2020-08-07 |
Family
ID=71878533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010374261.5A Withdrawn CN111495132A (en) | 2020-05-06 | 2020-05-06 | Flue gas desulfurization and denitrification process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111495132A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991953A (en) * | 2020-08-17 | 2020-11-27 | 莱西市鸿蒙科创孵化中心 | Method for utilizing waste heat of electrolytic flue gas and purifying flue gas |
| CN113144879A (en) * | 2021-04-23 | 2021-07-23 | 何静 | Flue gas desulfurization device |
| CN114100339A (en) * | 2021-11-09 | 2022-03-01 | 徐作元 | Desulfurization and denitrification integrated desulfurization tower |
-
2020
- 2020-05-06 CN CN202010374261.5A patent/CN111495132A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991953A (en) * | 2020-08-17 | 2020-11-27 | 莱西市鸿蒙科创孵化中心 | Method for utilizing waste heat of electrolytic flue gas and purifying flue gas |
| CN113144879A (en) * | 2021-04-23 | 2021-07-23 | 何静 | Flue gas desulfurization device |
| CN114100339A (en) * | 2021-11-09 | 2022-03-01 | 徐作元 | Desulfurization and denitrification integrated desulfurization tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111495132A (en) | Flue gas desulfurization and denitrification process | |
| CN103230723B (en) | Annular sectional cross-flow fume cleaning adsorption tower | |
| CN103933838B (en) | In coal, chlorine element circular utilizes the device and method realizing pollutant combined removal | |
| CN104826489B (en) | A kind of combined desulfurization and denitration fluidized bed plant based on activated carbon and low temperature catalyst | |
| CN101007238A (en) | Radial grading desulfurization dust-removing device | |
| CN203861953U (en) | Asphalt flue-gas processing device | |
| CN102716643A (en) | Device and method for removing acid gases in garbage incineration smoke at high temperature | |
| CN203227404U (en) | Novel sectional type cross flow smoke purifying and absorbing tower | |
| CN102343195A (en) | Vertical dry flue gas desulphurization and denitration integrated device | |
| CN211216153U (en) | Ascending pipe type gas lifting cap for removing fine particles in sintering flue gas tower | |
| CN203253334U (en) | Exhaust gas purifying system in rubber processing field | |
| CN101301572B (en) | Dry-wet mixed type dust-removing and desulfurizing integrated device | |
| CN205109291U (en) | Organic gas's processing apparatus | |
| CN109482041B (en) | Environment-friendly device and process for reducing smoke plume in smoke | |
| CN204395776U (en) | A kind of boiler waste gas treatment equipment | |
| CN2376992Y (en) | Turbulent flue gas purifying tower | |
| CN103566664B (en) | Flue gas of sintering machine demister | |
| CN110327765A (en) | A kind of flue-gas dust-removing and desulfurization device | |
| CN215085839U (en) | Dust removal system for sintering flue gas pollutants of industrial furnace | |
| CN201342305Y (en) | Powerful atomizing treatment equipment for boiler smoke desulphurization | |
| CN105107311B (en) | Desulfurization device | |
| CN105056739B (en) | A kind of desulfurating dust-removing equipment | |
| CN211358371U (en) | Smelt flue gas system acid equipment and gas cleaning device thereof | |
| CN205925418U (en) | High -efficient desulfurization of flue gas is dust collector in coordination | |
| CN106984116B (en) | High-efficient gas purification tower and gas treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200807 |