CN113680202A - Desulfurizing tower and desulfurizing method thereof - Google Patents
Desulfurizing tower and desulfurizing method thereof Download PDFInfo
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- CN113680202A CN113680202A CN202110994350.4A CN202110994350A CN113680202A CN 113680202 A CN113680202 A CN 113680202A CN 202110994350 A CN202110994350 A CN 202110994350A CN 113680202 A CN113680202 A CN 113680202A
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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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- 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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Abstract
The invention relates to a desulfurizing tower and a desulfurizing method thereof, wherein the desulfurizing tower comprises a desulfurizing tank; the top of the round table-shaped fixed cover is upwards communicated and connected with an air inlet pipe, and the air inlet pipe is fixedly sleeved in an exhaust channel of the desulfurizing tank; the spraying pipes are fixedly connected to the embedding openings of the truncated cone-shaped fixed cover side by side at intervals, the inner ends of the spraying pipes are connected with a plurality of first atomizing nozzles in a downward inclined mode respectively, and the outer ends of the spraying pipes are connected with a plurality of second atomizing nozzles in an upward inclined mode respectively; the upper end folding parts of the spraying pipes are respectively communicated and connected to the liquid inlet ring pipe, and the upper end folding parts of the spraying pipes and the bottom of the liquid inlet ring pipe are respectively connected with a plurality of third atomizing spray heads downwards; and the lower end folding parts of the spray pipe are respectively communicated and connected to the fixed ring pipe, and the lower end folding parts of the spray pipe and the top end of the fixed ring pipe are respectively upwards connected with a plurality of fourth atomizing nozzles. The invention can effectively and greatly improve the desulfurization effect and desulfurization efficiency.
Description
Technical Field
The invention relates to a desulfurizing tower and a desulfurizing method thereof, which are mainly used for desulfurizing flue gas.
Background
Flue gas broadly refers to a mixture of gas and smoke. A large amount of flue gas is generated during the operation of chemical equipment such as boilers, industrial furnaces, thermal power plants, coke ovens, cement plants, blast furnaces, open furnaces, converters, electric furnaces, catalytic cracking (FCC) units and the like. Air pollutants such as sulfur oxides and nitrogen oxides contained in flue gas bring about a series of environmental problems. Therefore, the flue gas must be treated for desulfurization, denitration, and dust removal before being discharged.
The desulfurizing tower is the most common equipment in the current flue gas desulfurization treatment, and the current desulfurizing tower generally comprises a desulfurizing tank and at least two groups of absorption liquid spraying mechanisms which are arranged in the desulfurizing tank according to the height, and flue gas flows through the desulfurizing tank from bottom to top. The absorption liquid at the bottom of the desulfurization tower is pumped and discharged to the absorption liquid spraying mechanism through corresponding liquid pumping pump circulation, and the absorption liquid is sprayed in a atomized manner, so that the atomized absorption liquid is contacted with the flue gas flowing through the desulfurization tank and reacts to achieve the desulfurization effect. Because upward air current can be formed to the last in-process of arranging of flue gas, not only the circulation speed is very fast, and easily leads to the absorption liquid after the atomizing can't form evenly distributed in the digester, causes the desulfurization effect unsatisfactory.
Therefore, the design can greatly reduce the circulation speed of the flue gas so as to effectively prolong the contact time of the flue gas and the atomized absorption liquid; the invention also discloses a desulfurizing tower and a desulfurizing method thereof, which can effectively ensure the distribution uniformity of atomized absorption liquid so as to effectively improve the contact rate of flue gas and the atomized absorption liquid, thereby effectively improving the desulfurizing effect and the desulfurizing efficiency.
Disclosure of Invention
In view of the technical problems in the prior art, the present invention provides a desulfurizing tower and a desulfurizing method thereof, which can effectively solve the technical problems in the prior art.
The technical scheme of the invention is as follows:
a desulfurizing tower comprises
The upper part of the desulfurizing tank is provided with an exhaust channel;
the top of the truncated cone-shaped fixed cover is fixedly connected with a corresponding cover plate in a sealing mode, the cover plate is upwards communicated and connected with a corresponding air inlet pipe, the air inlet pipe is fixedly sleeved in the exhaust channel, and the air inlet pipe and the exhaust channel are arranged at intervals; a plurality of corresponding embedding openings are formed in the truncated cone-shaped fixed cover at equal intervals, and the bottoms of the embedding openings penetrate through the bottom end of the truncated cone-shaped fixed cover;
the spraying pipes are fixedly connected to the embedding openings of the truncated cone-shaped fixed cover side by side at intervals, the inner ends of the spraying pipes are connected with a plurality of corresponding first atomizing nozzles in a downward inclined mode respectively, and the outer ends of the spraying pipes are connected with a plurality of corresponding second atomizing nozzles in an upward inclined mode respectively; the upper ends of the spray pipes are respectively outwards turned to form corresponding upper end turning parts, the upper end turning parts are connected to the outer side of the truncated cone-shaped fixed cover in a penetrating mode, the lower ends of the spray pipes are respectively outwards turned to form corresponding lower end turning parts, and the lower end turning parts are located on the bottom side of the truncated cone-shaped fixed cover;
the liquid inlet ring pipe is sleeved on the outer side of the upper part of the round table-shaped fixing cover, a liquid inlet pipe penetrating to the outer side of the desulfurization tank is connected to the liquid inlet ring pipe, the upper end folding parts of the spray pipes are respectively communicated and connected to the liquid inlet ring pipe, and the upper end folding parts of the spray pipes and the bottom of the liquid inlet ring pipe are respectively downwards connected with a plurality of corresponding third atomizing spray heads;
and the lower end folding part of the spray pipe and the top end of the fixed ring pipe are respectively and upwards connected with a plurality of corresponding fourth atomizing nozzles.
The lower part of the inner side wall of the desulfurization tank is inwards provided with a circle of corresponding supporting convex edge, and the bottom of the fixed ring pipe is abutted to the upper end surface of the supporting convex edge.
The top of the exhaust passage is hermetically connected with a corresponding sealing plate, one side of the exhaust passage is communicated and connected with a corresponding exhaust pipe outwards, and the air inlet end of the air inlet pipe penetrates through the sealing plate in a sealing mode and is connected to a corresponding flue gas exhaust pipe.
A plurality of corresponding support frames are fixedly connected between the air inlet pipe and the exhaust channel at intervals, and corresponding demisters are respectively clamped between every two adjacent support frames.
The bottom of the desulfurizing tank is downwards provided with a corresponding absorption liquid pool in a concave arc surface shape, a corresponding circulating liquid pump is arranged on the outer side fixing device of the desulfurizing tank, the liquid outlet end of the circulating liquid pump is connected to the liquid inlet pipe, and the liquid inlet end of the circulating liquid pump is connected to the lower part of the absorption liquid pool through a corresponding liquid pumping pipe.
The sealed through connection of liquid suction pipe in the lower part of absorption liquid pond, the feed liquor end of liquid suction pipe makes progress and sets up perpendicularly and the rigid coupling has corresponding liquid feeding fill, the top that the liquid feeding was fought extends to the upper portion in absorption liquid pond, and is provided with a great deal of corresponding dustproof filtration pore on the lateral wall that the feed liquor was fought.
And a corresponding sewage discharge pipe is arranged at the lower part of the absorption liquid pool, and a corresponding sewage discharge valve is arranged on the sewage discharge pipe in a fixing way.
A desulfurization method of a desulfurization tower comprises the following specific steps:
s1, injecting the absorption liquid into the liquid inlet annular tube by pressurizing through the liquid inlet tube, and spraying the absorption liquid in an atomized state through the first atomizing nozzle, so that the absorption liquid is uniformly distributed in the truncated cone-shaped fixed cover in an atomized state; meanwhile, the absorption liquid is atomized and sprayed out through the second atomizing nozzle, the third atomizing nozzle and the fourth atomizing nozzle, so that the absorption liquid is uniformly distributed between the truncated cone-shaped fixed cover and the desulfurizing tank in an atomized state;
s2, conveying the flue gas to be desulfurized into the truncated cone-shaped fixed cover through the air inlet pipe, so that the flue gas to be desulfurized is extruded and sunk and is fully contacted with atomized absorption liquid uniformly distributed in the truncated cone-shaped fixed cover to obtain primarily desulfurized gas;
s3, continuously adding the flue gas to be desulfurized, enabling the primarily desulfurized gas to overflow upwards along the interval between the truncated cone-shaped fixed cover and the inner side wall of the desulfurizing tank, and fully contacting with the atomized absorption liquid uniformly distributed between the truncated cone-shaped fixed cover and the desulfurizing tank to obtain secondary desulfurized gas;
and S4, discharging the gas after the secondary desulfurization along the interval between the air inlet pipe and the exhaust passage.
The invention has the advantages that:
1) the invention is additionally provided with a truncated cone-shaped fixed cover, a plurality of corresponding embedding openings are arranged on the truncated cone-shaped fixed cover at equal intervals, and then a plurality of spray pipes are fixedly connected to the embedding openings of the truncated cone-shaped fixed cover side by side at intervals to form an integral structure with spraying and gas guiding functions.
Firstly, the original bottom-to-top flue gas circulation mode is effectively changed into top-to-bottom extrusion type circulation, and then the flue gas overflows upwards along the interval between the truncated cone-shaped fixed cover and the bottom of the desulfurizing tank and circulates, so that the circulation path of the flue gas is effectively and greatly extended; most importantly, the flue gas generally has higher temperature, so the flue gas is in an upward floating state, and can upwards circulate between the truncated cone-shaped fixed cover and the desulfurizing tank only after the whole truncated cone-shaped fixed cover is filled with the flue gas and the flue gas continuously enters in the follow-up extruding process; the lower space of the truncated cone-shaped fixed cover is larger than the upper space of the truncated cone-shaped fixed cover, and the smoke is easy to be in a diffusion state in the process of pressing down, so that the impact force is extremely small, and the impact air flow cannot be formed; on the contrary, the space between the truncated cone-shaped fixed cover and the upper part of the desulfurizing tank is larger than the space between the lower part of the truncated cone-shaped fixed cover, so that in the process of upward circulation of the flue gas between the truncated cone-shaped fixed cover and the desulfurizing tank, the flue gas is firstly compressed and then diffused, the circulation speed is low, the impact force is small, and the impact airflow can not be formed. Consequently, can reduce the circulation speed of flue gas by a wide margin, it is long when effectively promoting the contact of flue gas and atomizing absorption liquid, and can effectively prevent that the flue gas of circulation from forming the impact air current, with effectively preventing to form the impact to the absorption liquid after the atomizing, thereby ensure the distribution uniformity of the absorption liquid after the atomizing, with the contact rate of effectively promoting flue gas and atomizing absorption liquid, thereby can effectively promote desulfurization effect and desulfurization efficiency.
Secondly, the inner ends of the spray pipes are respectively connected with a plurality of corresponding first atomizing nozzles in a downward inclined manner, absorption liquid is sprayed downwards through the first atomizing nozzles, the absorption liquid can be effectively and uniformly distributed in the truncated cone-shaped fixed cover in an atomized state, and the atomized absorption liquid uniformly distributed in the truncated cone-shaped fixed cover is contacted with the flue gas in the slow sinking process of the flue gas to be desulfurized so as to form primary desulfurization treatment; simultaneously, through the second atomizer, third atomizer and fourth atomizer will absorb liquid atomizing blowout, make the absorption liquid be the atomizing state and evenly be covered all over between fixed cover of round platform shape and digester, along with waiting to continue the entering of desulfurization flue gas, the interval between the inside wall of the part flue gas after preliminary desulfurization treatment along the fixed cover of round platform shape and digester upwards spills over, evenly be covered all over the atomizing absorption liquid between fixed cover of round platform shape and digester and contact with the flue gas that spills over, in order to form secondary desulfurization treatment. Thereby further ensure the distribution homogeneity of the absorption liquid after the atomizing to further effectively promote the contact rate of flue gas and atomizing absorption liquid, thereby can effectively further promote desulfurization effect and desulfurization efficiency.
2) The plurality of spray pipes are fixedly connected to the mounting opening of the truncated cone-shaped fixed cover side by side at intervals, so that an integral structure with spraying and gas guiding functions can be formed, the connection stability and integrity between components can be effectively and greatly improved, the structure is simple and easy, the processing is convenient, and the difficulty in manufacturing and assembling can be effectively reduced.
3) The liquid suction pipe is hermetically and penetratingly connected to the lower part of the absorption liquid pool, the liquid inlet end of the liquid suction pipe is vertically arranged upwards and fixedly connected with the corresponding liquid inlet hopper, the top of the liquid inlet hopper extends to the upper part of the absorption liquid pool, and the side wall of the liquid inlet hopper is provided with a plurality of corresponding dustproof filter holes. Through the arrangement of the liquid inlet hopper, particles are effectively prevented from being pumped and discharged to the spray pipe, so that the first atomizing nozzle, the second atomizing nozzle, the third atomizing nozzle and the fourth atomizing nozzle are prevented from being blocked, and the practical effect of the invention is effectively improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the structure of the shower pipes fixed side by side on the truncated cone-shaped fixing cover.
FIG. 3 is a schematic view showing a structure in which a plurality of fitting ports are formed in a truncated cone-shaped fixing cover.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to FIGS. 1-3, a desulfurization tower includes
The desulfurization device comprises a desulfurization tank 1, wherein an exhaust channel 101 is arranged at the upper part of the desulfurization tank 1;
the top of the truncated cone-shaped fixed cover 2 is fixedly connected with a corresponding cover plate 3 in a sealing mode, the cover plate 3 is upwards communicated with a corresponding air inlet pipe 4, the air inlet pipe 4 is fixedly sleeved in the exhaust channel 101, and the air inlet pipe 4 and the exhaust channel 101 are arranged at intervals; a plurality of corresponding embedding openings 201 are formed in the truncated cone-shaped fixing cover 2 at equal intervals, and the bottoms of the embedding openings 201 penetrate through the bottom end of the truncated cone-shaped fixing cover 2;
the spraying pipes 5 are fixedly connected to the embedding openings 201 of the truncated cone-shaped fixed cover 2 side by side at intervals, the inner ends of the spraying pipes 5 are connected with a plurality of corresponding first atomizing nozzles 6 in a downward inclined mode respectively, and the outer ends of the spraying pipes 3 are connected with a plurality of corresponding second atomizing nozzles 7 in an upward inclined mode respectively; the upper ends of the spray pipes 3 are respectively folded outwards to form corresponding upper end folded parts 501, the upper end folded parts 501 are connected to the outer side of the truncated cone-shaped fixed cover 2 in a penetrating manner, the lower ends of the spray pipes 5 are respectively folded outwards to form corresponding lower end folded parts 502, and the lower end folded parts 502 are positioned at the bottom side of the truncated cone-shaped fixed cover 2;
a liquid inlet ring pipe 8 sleeved outside the upper part of the circular truncated cone-shaped fixing cover 2, wherein the liquid inlet ring pipe 8 is connected with a liquid inlet pipe 9 penetrating to the outside of the desulfurization tank 1, the upper folded parts 501 of the spray pipes 5 are respectively communicated and connected to the liquid inlet ring pipe 8, and the upper folded parts 501 of the spray pipes 5 and the bottom of the liquid inlet ring pipe 8 are respectively and downwards connected with a plurality of corresponding third atomizing spray heads 10;
and the fixed ring pipe 11 is sleeved outside the bottom of the truncated cone-shaped fixed cover 2, the lower end folded parts 502 of the spray pipe 5 are respectively communicated and connected to the fixed ring pipe 11, and the lower end folded parts 502 of the spray pipe 5 and the top end of the fixed ring pipe 11 are respectively upwards connected with a plurality of corresponding fourth atomizing nozzles 12.
The lower part of the inner side wall of the desulfurization tank 1 is inwards provided with a circle of corresponding supporting convex edge 13, and the bottom of the fixed ring pipe 11 is abutted to the upper end surface of the supporting convex edge 13.
The top of the exhaust passage 101 is hermetically connected with a corresponding sealing plate 14, one side of the exhaust passage 101 is outwardly communicated with a corresponding exhaust pipe 15, and the air inlet end of the air inlet pipe 4 hermetically penetrates through the sealing plate 14 and is connected to a corresponding flue gas exhaust pipe 16.
A plurality of corresponding support frames 17 are fixedly connected between the air inlet pipe 4 and the exhaust channel 101 at intervals, and corresponding demisters 18 are respectively clamped between every two adjacent support frames 17.
The bottom of the desulfurization tank 1 is downwards provided with a corresponding absorption liquid pool 19 in a concave arc surface shape, the outer side fixing device of the desulfurization tank 1 is provided with a corresponding circulating liquid pump 20, the liquid outlet end of the circulating liquid pump 20 is connected to the liquid inlet pipe 9, and the liquid inlet end of the circulating liquid pump 20 is connected to the lower part of the absorption liquid pool 19 through a corresponding liquid pumping pipe 21.
The sealed through connection of liquid suction pipe 21 in the lower part of absorption liquid pond 19, the feed liquor end of liquid suction pipe 21 upwards sets up perpendicularly and the rigid coupling has corresponding feed liquor fill 22, the top of feed liquor fill 22 extends to the upper portion of absorption liquid pond 19, and is provided with a great deal of corresponding dustproof filtration pore on the lateral wall of feed liquor fill 22.
The lower part of the absorption liquid pool 19 is provided with a corresponding sewage discharge pipe 23, and a corresponding sewage discharge valve 24 is fixed on the sewage discharge pipe 23.
The desulfurization method of the desulfurization tower comprises the following specific steps:
s1, injecting the absorption liquid into the liquid inlet ring pipe 8 by pressurizing through the liquid inlet pipe 9, and spraying the absorption liquid in an atomized state through the first atomizing nozzle 6, so that the absorption liquid is uniformly distributed in the truncated cone-shaped fixed cover 2 in an atomized state; meanwhile, the absorption liquid is atomized and sprayed out through the second atomizing nozzle 7, the third atomizing nozzle 10 and the fourth atomizing nozzle 12, so that the absorption liquid is uniformly distributed between the truncated cone-shaped fixed cover 2 and the desulfurizing tank 1 in an atomized state;
s2, conveying the flue gas to be desulfurized into the truncated cone-shaped fixed cover 2 through the air inlet pipe 4, so that the flue gas to be desulfurized is extruded and sunk and is fully contacted with atomized absorption liquid uniformly distributed in the truncated cone-shaped fixed cover 2 to obtain primarily desulfurized gas;
s3, continuously adding the flue gas to be desulfurized, so that the primarily desulfurized gas overflows upwards along the interval between the truncated cone-shaped fixed cover 2 and the inner side wall of the desulfurizing tank 1 and is fully contacted with the atomized absorption liquid uniformly distributed between the truncated cone-shaped fixed cover 2 and the desulfurizing tank 1, and secondary desulfurized gas is obtained;
s4, the secondarily desulfurized gas is discharged along the interval between the intake pipe 4 and the exhaust passage 101.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (8)
1. A desulfurization tower characterized by: comprises that
The desulfurization device comprises a desulfurization tank (1), wherein an exhaust channel (101) is arranged at the upper part of the desulfurization tank (1);
the air inlet pipe (4) is fixedly sleeved in the exhaust channel (101), and the air inlet pipe (4) and the exhaust channel (101) are arranged at intervals; a plurality of corresponding embedding openings (201) are formed in the truncated cone-shaped fixing cover (2) at equal intervals, and the bottoms of the embedding openings (201) penetrate through the bottom end of the truncated cone-shaped fixing cover (2);
the spraying pipes (5) are fixedly connected to the embedding openings (201) of the truncated cone-shaped fixed cover (2) side by side at intervals, the inner ends of the spraying pipes (5) are connected with a plurality of corresponding first atomizing nozzles (6) in a downward inclined mode respectively, and the outer ends of the spraying pipes (3) are connected with a plurality of corresponding second atomizing nozzles (7) in an upward inclined mode respectively; the upper ends of the spray pipes (3) are respectively outwards folded to form corresponding upper end folded parts (501), the upper end folded parts (501) are connected to the outer side of the truncated cone-shaped fixed cover (2) in a penetrating mode, the lower ends of the spray pipes (5) are respectively outwards folded to form corresponding lower end folded parts (502), and the lower end folded parts (502) are located on the bottom side of the truncated cone-shaped fixed cover (2);
the liquid inlet ring pipe (8) is sleeved on the outer side of the upper part of the circular truncated cone-shaped fixing cover (2), a liquid inlet pipe (9) penetrating through the outer side of the desulfurization tank (1) is connected onto the liquid inlet ring pipe (8), the upper end folding parts (501) of the spray pipes (5) are respectively communicated and connected onto the liquid inlet ring pipe (8), and the upper end folding parts (501) of the spray pipes (5) and the bottom of the liquid inlet ring pipe (8) are respectively downwards connected with a plurality of corresponding third atomizing spray heads (10);
the fixed ring pipe (11) is sleeved at the outer side of the bottom of the truncated cone-shaped fixed cover (2), the lower end folding parts (502) of the spray pipe (5) are respectively communicated and connected to the fixed ring pipe (11), and the lower end folding parts (502) of the spray pipe (5) and the top end of the fixed ring pipe (11) are respectively upwards connected with a plurality of corresponding fourth atomizing nozzles (12).
2. A desulfurization tower according to claim 1, wherein: the lower part of the inner side wall of the desulfurization tank (1) is inwards provided with a circle of corresponding supporting convex edge (13), and the bottom of the fixed ring pipe (11) is abutted to the upper end face of the supporting convex edge (13).
3. A desulfurization tower according to claim 1, wherein: the top of the exhaust passage (101) is hermetically connected with a corresponding sealing plate (14), one side of the exhaust passage (101) is communicated and connected with a corresponding exhaust pipe (15), and the air inlet end of the air inlet pipe (4) penetrates through the sealing plate (14) in a sealing mode and is connected to a corresponding smoke exhaust pipe (16).
4. A desulfurization tower according to claim 3, wherein: a plurality of corresponding support frames (17) are fixedly connected between the air inlet pipe (4) and the exhaust channel (101) at intervals, and corresponding demisters (18) are respectively clamped between every two adjacent support frames (17).
5. A desulfurization tower according to claim 1, wherein: the bottom of digester (1) is concave cambered surface shape downwards and is equipped with corresponding absorption liquid pond (19), the outside fixing device of digester (1) has a corresponding circulation drawing liquid pump (20), the play liquid end of circulation drawing liquid pump (20) is connected to on feed liquor pipe (9), the feed liquor end of circulation drawing liquid pump (20) is connected to through corresponding liquid suction pipe (21) the lower part in absorption liquid pond (19).
6. A desulfurization tower according to claim 5, characterized in that: the sealed through connection of liquid suction pipe (21) in the lower part of absorption liquid pond (19), the feed liquor end of liquid suction pipe (21) upwards sets up perpendicularly and the rigid coupling has corresponding liquid feeding fill (22), the top that advances liquid fill (22) extends to the upper portion of absorption liquid pond (19), and advances to be provided with a great deal of corresponding dustproof filtration pore on the lateral wall of liquid fill (22).
7. A desulfurization tower according to claim 1, wherein: the lower part of the absorption liquid pool (19) is provided with a corresponding sewage discharge pipe (23), and a corresponding sewage discharge valve (24) is arranged on the sewage discharge pipe (23) in a fixing way.
8. The desulfurization method of the desulfurization tower of claim 1, comprising the following steps:
s1, injecting the absorption liquid into the liquid inlet ring pipe (8) through the liquid inlet pipe (9) in a pressurizing manner, and spraying the absorption liquid in an atomizing manner through the first atomizing nozzle (6) so that the absorption liquid is uniformly distributed in the truncated cone-shaped fixed cover (2) in an atomizing state; meanwhile, the absorption liquid is atomized and sprayed out through a second atomizing nozzle (7), a third atomizing nozzle (10) and a fourth atomizing nozzle (12), so that the absorption liquid is uniformly distributed between the truncated cone-shaped fixed cover (2) and the desulfurizing tank (1) in an atomized state;
s2, conveying the flue gas to be desulfurized into the truncated cone-shaped fixed cover (2) through the air inlet pipe (4), so that the flue gas to be desulfurized is extruded and sunk and is fully contacted with atomized absorption liquid uniformly distributed in the truncated cone-shaped fixed cover (2) to obtain primarily desulfurized gas;
s3, continuously adding the flue gas to be desulfurized, enabling the primarily desulfurized gas to overflow upwards along the interval between the truncated cone-shaped fixed cover (2) and the inner side wall of the desulfurizing tank (1), and fully contacting with atomized absorption liquid uniformly distributed between the truncated cone-shaped fixed cover (2) and the desulfurizing tank (1) to obtain secondary desulfurized gas;
and S4, discharging the gas after the secondary desulfurization along the interval between the air inlet pipe (4) and the exhaust channel (101).
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Cited By (1)
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| CN114588769A (en) * | 2022-03-16 | 2022-06-07 | 北京北控生态建设集团有限公司 | Aerobic reinforced biological stabilizing system for refuse landfill |
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| CN208115492U (en) * | 2017-09-18 | 2018-11-20 | 安徽中科自动化股份有限公司 | A kind of nozzle-type barn desulfurizer and system |
| CN208340485U (en) * | 2018-01-05 | 2019-01-08 | 靳新令 | Ammonia desulfuration equipment |
| CN109364726A (en) * | 2018-11-29 | 2019-02-22 | 湖南古圣砖瓦科技有限公司 | Desulfurizing tower is used in a kind of production of grey tile |
| KR20210026922A (en) * | 2019-09-02 | 2021-03-10 | 한국에너지기술연구원 | Disk rotation type scrubber for removing NOx and SOx simultaneously |
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| CN114588769A (en) * | 2022-03-16 | 2022-06-07 | 北京北控生态建设集团有限公司 | Aerobic reinforced biological stabilizing system for refuse landfill |
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