CN219744415U - Desulfurization mechanism and flue gas treatment device - Google Patents
Desulfurization mechanism and flue gas treatment device Download PDFInfo
- Publication number
- CN219744415U CN219744415U CN202320056987.3U CN202320056987U CN219744415U CN 219744415 U CN219744415 U CN 219744415U CN 202320056987 U CN202320056987 U CN 202320056987U CN 219744415 U CN219744415 U CN 219744415U
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- Prior art keywords
- flue gas
- desulfurizing tower
- desulfurization
- slurry
- circulating pump
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000003546 flue gas Substances 0.000 title claims abstract description 60
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 54
- 230000023556 desulfurization Effects 0.000 title claims abstract description 54
- 239000002002 slurry Substances 0.000 claims abstract description 75
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 52
- 239000007921 spray Substances 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 abstract description 24
- 239000006028 limestone Substances 0.000 abstract description 24
- 239000002245 particle Substances 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 150000003568 thioethers Chemical class 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 241000208125 Nicotiana Species 0.000 description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a desulfurization mechanism and a flue gas treatment device, and relates to the technical field of flue gas desulfurization, comprising a desulfurization tower, wherein the bottom of the desulfurization tower is provided with a flue opening; the slurry pool is arranged below the desulfurizing tower and is communicated with the desulfurizing tower; a spray assembly; according to the utility model, the spraying mechanism is arranged, so that the limestone solution and sulfides in the flue gas are rapidly reacted, high-efficiency desulfurization is realized, the slurry tray is arranged at the top of the slurry pool, solid particles which are involved in the desulfurization tower along with the flue gas, crystal particles such as calcium sulfate and the like generated after the desulfurization reaction are intercepted, the particles are prevented from flowing back into the slurry pool along with the spraying slurry and are sucked by the circulating pump, the service life of the circulating pump is prolonged, and meanwhile, the demisting frame and the active carbon adsorption layer are arranged above the spraying pipe and are used for intercepting water vapor, so that the flue gas is effectively prevented from being wrapped with the limestone slurry into the flue gas exhaust pipe, and other harmful substances in the flue gas can be removed, so that the flue gas is further purified.
Description
Technical Field
The utility model relates to the technical field of flue gas desulfurization, in particular to a desulfurization mechanism and a flue gas treatment device.
Background
After the flue gas enters a desulfurizing tower, the flue gas is contacted and reacted with sprayed alkaline limestone slurry to generate substances such as CaSO3, caSO4 and the like, and the substances are subjected to on-site forced oxidation and crystallization to generate CaSO4.2H2O, and a desulfurization byproduct-gypsum is obtained after dehydration, so that the comprehensive treatment of sulfur-containing flue gas is finally realized. In the desulfurization process, the flue gas is found to be wrapped with a large amount of fixed particles such as smoke dust and the like when entering the desulfurization tower, and crystallization is generated in the desulfurization reaction, and the fixed particles can flow back into the slurry pool again along with the sprayed slurry and are sucked by the circulating pump, so that the service life of the circulating pump is greatly influenced
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above-mentioned or the problems in the prior art that there is a large amount of sulfides contained in flue gas generated in a combustion process of coal in a factory, and the flue gas cannot be directly discharged into the atmosphere.
It is therefore an object of the present utility model to provide a desulfurization mechanism.
In order to solve the technical problems, the utility model provides the following technical scheme: the desulfurization mechanism comprises a desulfurization tower, and a flue opening is formed in the bottom of the desulfurization tower; the slurry pool is arranged below the desulfurizing tower and is communicated with the desulfurizing tower; the spraying assembly comprises a circulating pump arranged at one side of the slurry tank, the input end of the circulating pump is connected with the liquid outlet of the slurry tank, the output end of the circulating pump is connected with a liquid supply pipe, and one end of the liquid supply pipe, far away from the circulating pump, extends to the inside of the desulfurizing tower;
the spray assembly further comprises at least two pipeline shunts which are arranged at intervals up and down, a plurality of spray pipes are arranged on the pipeline shunts, and one end of each liquid supply pipe positioned in the desulfurizing tower is connected with a liquid supply port of the pipeline shunts.
The spray pipes are arranged in the desulfurizing tower in a circumferential array, and a plurality of spray heads are arranged at equal intervals on one downward side of each spray pipe;
two groups of spray pipes distributed up and down are staggered with each other.
As a preferable embodiment of the desulfurization mechanism of the present utility model, wherein: the bottom end of the desulfurizing tower is fixedly connected with the slurry tank through a flange and a locking bolt, a liquid supplementing port is formed in the bottom of the slurry tank, and control valves are arranged on the liquid supplementing ports.
As a preferable embodiment of the desulfurization mechanism of the present utility model, wherein: the top of the desulfurizing tower is of an inverted bucket-shaped structure, and the middle part of the top end of the desulfurizing tower is provided with an air outlet.
As a preferable embodiment of the desulfurization mechanism of the present utility model, wherein: the top of desulfurizing tower is installed and is discharged the tobacco pipe, the bottom of discharging the tobacco pipe runs through the gas outlet and extends to the inside fixedly connected with gas collecting channel of desulfurizing tower, the top of discharging the tobacco pipe is buckled towards one side.
The desulfurization mechanism has the beneficial effects that: according to the utility model, the spraying mechanism is arranged, so that the limestone solution and sulfide in the flue gas react rapidly, and high-efficiency desulfurization is realized.
In view of the fact that in the actual use process, the smoke particles wrapped in the desulfurizing tower and crystals generated in the desulfurizing reaction can flow back into the slurry pool along with the sprayed slurry and are sucked by the circulating pump.
In order to solve the technical problems, the utility model provides the following technical scheme: the flue gas treatment device comprises a desulfurization mechanism and a slurry tray, wherein the slurry tray is arranged at the top of the slurry pool and is positioned below a flue opening; the demisting frame is arranged in the desulfurizing tower and is positioned above the spraying pipe; and the activated carbon adsorption layer is arranged above the demisting frame.
As a preferable mode of the flue gas treatment device of the present utility model, wherein: the surface of the slurry tray is provided with a plurality of evenly distributed liquid leakage holes, and the liquid leakage holes are bucket-shaped.
As a preferable mode of the flue gas treatment device of the present utility model, wherein: the demisting frame comprises an annular frame body which is matched with the inner wall of the desulfurizing tower, and a plurality of wavy blades which are arranged in the annular frame body.
The utility model has the beneficial effects that: according to the utility model, the slurry tray is arranged at the top of the slurry pool, solid particles which are involved into the desulfurizing tower along with flue gas and crystal particles such as calcium sulfate generated after desulfurization reaction are intercepted, so that the particles are prevented from flowing back into the slurry pool along with spraying slurry and are sucked by the circulating pump, the service life of the circulating pump is prolonged, and meanwhile, the demisting frame and the activated carbon adsorption layer are arranged above the spraying pipe and are used for intercepting water vapor, so that the flue gas is effectively prevented from being wrapped with limestone slurry and entering the smoke exhaust pipe, and other harmful substances in the flue gas can be removed, so that the flue gas is further purified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is an overall schematic view of the desulfurization mechanism of the present utility model.
FIG. 2 is a partial cross-sectional view of the desulfurization mechanism of the present utility model.
FIG. 3 is a schematic view of the structure of the spray assembly in the desulfurization mechanism of the present utility model.
Fig. 4 is an overall schematic diagram of the flue gas treatment device of the present utility model.
Fig. 5 is a partial cross-sectional view of a flue gas treatment device of the present utility model.
FIG. 6 is a schematic view of a demisting frame in a partial cross-sectional view according to the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 3, in a first embodiment of the present utility model, there is provided a desulfurization mechanism including a desulfurization tower 100, a slurry tank 200, and a spray assembly 300, wherein a flue port 101 is provided at the bottom of the desulfurization tower 100, flue gas generated by combustion enters the desulfurization tower 100 through the flue port 101, the slurry tank 200 is filled with limestone slurry, the spray assembly 300 is used for extracting the limestone slurry in the slurry tank 200, and then delivering the limestone slurry to a position inside the desulfurization tower 100 and above the flue port 101, so that the limestone slurry is sprayed downward and reacts with the flue gas entering the desulfurization tower 100 to perform desulfurization.
The slurry pool 200 is arranged below the desulfurizing tower 100 and communicated with the desulfurizing tower 100, and limestone slurry filled in the slurry pool 200 is used for reacting with sulfides in the flue gas so as to achieve the purpose of desulfurizing the flue gas
The spraying assembly 300 comprises a circulating pump 301 arranged on one side of the slurry pond 200, the input end of the circulating pump 301 is connected with the liquid outlet of the slurry pond 200, the output end of the circulating pump 301 is connected with a liquid supply pipe 302, and one end, far away from the circulating pump 301, of the liquid supply pipe 302 extends to the inside of the desulfurizing tower 100, wherein the circulating pump 301 is used for pumping limestone slurry in the slurry pond 200, and the limestone slurry is conveyed to the inside of the desulfurizing tower 100 through the liquid supply pipe 302 and is located at the position above the flue opening 101, so that the limestone slurry sprays downwards and flows back into the slurry pond 200.
When the flue gas desulfurization device is used, flue gas enters the desulfurizing tower 100 through the flue opening 101 at the side of the bottom of the desulfurizing tower 100, limestone slurry in the slurry pond 200 is brought into the desulfurizing tower 100 through the spraying assembly 300, and is positioned at the flue opening 101 in the downward spraying process, contacts with the flue gas entering the desulfurizing tower 100 and reacts with sulfide in the flue gas, so that the flue gas is desulfurized.
The bottom end of the desulfurizing tower 100 is fixedly connected with the slurry pond 200 through a flange and a locking bolt, the bottom of the slurry pond 200 is provided with a liquid supplementing port 201, the liquid supplementing ports 201 are provided with control valves 202, after a period of desulfurization reaction, the concentration of limestone slurry is gradually reduced, the limestone slurry in the slurry pond 200 is drained through the liquid supplementing port 201, and new limestone slurry is replenished after the liquid is drained.
Further, spray assembly 300 still includes at least two upper and lower interval arrangement's pipeline shunt 304, install a plurality of shower pipes 303 on the pipeline shunt 304, be connected with three shower pipes 303 on the pipeline shunt 304 at least, two sets of shower pipes 303 of upper and lower distribution are staggered arrangement each other, the one end that supply pipe 302 is located the inside of desulfurizing tower 100 links to each other with the liquid feed mouth of pipeline shunt 304, a plurality of shower pipes 303 are the circumference array and arrange in desulfurizing tower 100 inside, and a plurality of equidistant interval arrangement shower nozzles 305 are all installed to the one side that every shower pipe 303 is down, install three shower nozzles 305 and equidistant interval arrangement on every shower pipe 303, shower nozzle 305 can make the lime stone be umbrella form blowout easily, can be more extensive with flue gas contact reaction, two sets of shower pipes 303 of upper and lower interval arrangement simultaneously, can carry out the classification shower to the flue gas.
Still further, the top of desulfurizing tower 100 is the bucket-shaped structure of inversion, and the gas outlet has been seted up at desulfurizing tower 100 top middle part, and the tobacco pipe 103 is discharged in the top of desulfurizing tower 100, and the bottom of tobacco pipe 103 runs through the gas outlet and extends to desulfurizing tower 100 inside fixedly connected with gas collecting channel 102, and the flue gas is discharged by tobacco pipe 103 after desulfurization reaction, and the top of tobacco pipe 103 is buckled towards one side, avoids the discharge of flue gas straight up and down, reduces simultaneously and falls into the debris in the desulfurizing tower 100 from the atmosphere.
When the desulfurization device is used, limestone slurry is pumped out of the slurry tank 200 through the circulating pump 301, then is dispersed into each spray pipe 303 through the liquid supply pipe 302 and the pipeline flow divider 304, finally is sprayed downwards through the spray heads 305 to react with sulfides in flue gas, the spray coverage range is wide, the flue gas can be fully mixed with the limestone slurry, the two groups of spray pipes 303 which are arranged at intervals up and down can spray the flue gas in a grading manner, the reaction rate of the limestone slurry and the sulfides in the flue gas is further improved, and finally, the flue gas is discharged through the flue gas discharge pipe 103 after desulfurization reaction.
Example 2
Referring to fig. 4 to 6, a further improvement of the present embodiment is that, on the basis of embodiment 1, this embodiment provides a flue gas treatment device including a desulfurization mechanism, a slurry tray 400, a demister frame 500, and an activated carbon adsorption layer 600; the slurry tray 400 is arranged at the top of the slurry pool 200 and is positioned below the flue opening 101, the slurry tray 400 is used for intercepting solid particles which are involved into the desulfurizing tower 100 along with flue gas and sulfide solids after desulfurization reaction, a plurality of uniformly distributed liquid leakage holes 401 are formed in the surface of the slurry tray 400, the liquid leakage holes 401 are in a bucket shape, and sprayed limestone slurry flows back into the slurry pool 200 through the liquid leakage holes 401.
The defogging frame 500 sets up in desulfurizing tower 100 inside and be located shower 303 top, and defogging frame 500 includes the cyclic annular support body 501 that agrees with desulfurizing tower 100 inner wall to and set up a plurality of wavy blades 502 in cyclic annular support body 501 inside, and defogging frame 500 is arranged in preventing that flue gas from wrapping up in and holding limestone slurry and getting into in the fume tube 103.
The activated carbon adsorption layer 600 is disposed above the demisting frame 500, and the activated carbon adsorption layer 600 can further adsorb water vapor and remove other harmful substances in the flue gas.
When the flue gas desulfurization device is used, solid particles which are involved into the desulfurizing tower 100 along with flue gas and crystal particles such as calcium sulfate generated after desulfurization reaction are intercepted by installing the slurry tray 400 at the top of the slurry tank 200, so that the particles are prevented from flowing back into the slurry tank 200 along with spraying slurry and are sucked by the circulating pump 301, the service life of the circulating pump 301 is prolonged, and meanwhile, the demisting frame 500 and the activated carbon adsorption layer 600 are arranged above the spraying pipe 303 and are used for intercepting water vapor, so that the flue gas is effectively prevented from being wrapped with limestone slurry and entering the flue gas exhaust pipe 103, and other harmful substances in the flue gas can be removed, so that the flue gas is further purified.
The rest of the structure is the same as that of embodiment 1.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (7)
1. A desulfurization mechanism, characterized in that: the desulfurization mechanism comprises a desulfurization device, a desulfurization device and a desulfurization device,
a flue opening (101) is formed in the bottom of the desulfurizing tower (100);
a slurry tank (200) which is arranged below the desulfurizing tower (100) and is communicated with the desulfurizing tower; the method comprises the steps of,
the spraying assembly (300) comprises a circulating pump (301) arranged at one side of the slurry tank (200), the input end of the circulating pump (301) is connected with the liquid outlet of the slurry tank (200), the output end of the circulating pump (301) is connected with a liquid supply pipe (302), and one end, far away from the circulating pump (301), of the liquid supply pipe (302) extends into the desulfurizing tower (100);
the spraying assembly (300) further comprises at least two pipeline splitters (304) which are arranged at intervals up and down, a plurality of spraying pipes (303) are arranged on the pipeline splitters (304), and one end of each liquid supply pipe (302) positioned in the desulfurizing tower (100) is connected with a liquid supply port of the pipeline splitters (304);
the spray pipes (303) are arranged in the desulfurizing tower (100) in a circumferential array, and a plurality of spray heads (305) are arranged at equal intervals on one downward side of each spray pipe (303);
two groups of spray pipes (303) distributed up and down are staggered with each other.
2. The desulfurization mechanism of claim 1, wherein: the bottom of the desulfurizing tower (100) is fixedly connected with the slurry tank (200) through a flange and a locking bolt, a liquid supplementing port (201) is formed in the bottom of the slurry tank (200), and control valves (202) are arranged on the liquid supplementing ports (201).
3. The desulfurization mechanism of claim 2, wherein: the top of the desulfurizing tower (100) is of an inverted bucket-shaped structure, and an air outlet is formed in the middle of the top of the desulfurizing tower (100).
4. A desulfurization mechanism as claimed in claim 3, wherein: the top of desulfurizing tower (100) is installed and is discharged fume tube (103), the bottom of discharging fume tube (103) runs through the gas outlet and extends to inside fixedly connected with gas collecting channel (102) of desulfurizing tower (100), the top of discharging fume tube (103) is buckled towards one side.
5. A flue gas treatment device, characterized in that: comprising the desulfurization mechanism as claimed in any one of claims 1 to 4, and,
a slurry tray (400) arranged at the top of the slurry tank (200) and below the flue opening (101);
a demisting frame (500) arranged inside the desulfurizing tower (100) and above the spray pipe (303);
and
and an activated carbon adsorption layer (600) arranged above the demisting frame (500).
6. The flue gas treatment device according to claim 5, wherein: said slurry tray (400)
A plurality of evenly distributed liquid leakage holes (401) are formed in the surface of the water tank, and the liquid leakage holes (401) are in a bucket shape.
7. The flue gas treatment device according to claim 6, wherein: the demister frame (500) comprises an annular frame body (501) which is matched with the inner wall of the desulfurizing tower (100), and a plurality of wavy blades (502) which are arranged inside the annular frame body (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320056987.3U CN219744415U (en) | 2023-01-09 | 2023-01-09 | Desulfurization mechanism and flue gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320056987.3U CN219744415U (en) | 2023-01-09 | 2023-01-09 | Desulfurization mechanism and flue gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219744415U true CN219744415U (en) | 2023-09-26 |
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ID=88088199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320056987.3U Active CN219744415U (en) | 2023-01-09 | 2023-01-09 | Desulfurization mechanism and flue gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219744415U (en) |
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2023
- 2023-01-09 CN CN202320056987.3U patent/CN219744415U/en active Active
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