CN219631020U - Recycle system for semi-dry desulfurization - Google Patents
Recycle system for semi-dry desulfurization Download PDFInfo
- Publication number
- CN219631020U CN219631020U CN202320554451.4U CN202320554451U CN219631020U CN 219631020 U CN219631020 U CN 219631020U CN 202320554451 U CN202320554451 U CN 202320554451U CN 219631020 U CN219631020 U CN 219631020U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- dust remover
- hopper
- recycling
- semi
- 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.)
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 21
- 230000023556 desulfurization Effects 0.000 title claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 238000004064 recycling Methods 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims abstract description 36
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005243 fluidization Methods 0.000 description 12
- 239000003517 fume Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the field of environmental protection, and discloses a recycling system for semi-dry desulfurization, which comprises an absorption tower, a dust remover and a recycling system, wherein one ends of the absorption tower and the dust remover are connected in a flue gas conveying channel dust remover, a hopper is arranged below the dust remover, a desulfurizing agent is arranged in the hopper, the hopper at the bottom of the dust remover is connected with a feed inlet of a screw conveyor of the recycling system, two sides of the bottom of the screw conveyor are provided with discharge openings, one of the discharge openings is connected with a recycling pipe, the recycling pipe is connected with the absorption tower, and the recycling pipe is a hose. The wet desulfurizing agent in the hopper can be quickly scattered and falls through the screw conveyor, and the recycling pipe at the bottom of the screw conveyor can shake or stir the desulfurizing agent due to the flexible pipe, so that the desulfurizing agent in the hopper can be shifted into the absorption tower.
Description
Technical Field
The utility model relates to the field of environmental protection, in particular to a recycling system for semi-dry desulfurization.
Background
The semi-dry desulfurizing process includes desulfurizing agent system, absorption tower, bag dust collector, re-circulating system, etc. the semi-dry desulfurizing process adopts circulating fluidized bed as principle, and through the internal circulation of desulfurizing agent in the bed and the high-magnification external circulation, the desulfurizing agent is made to react chemically in the absorption tower to form solid powder, which is dispersed in fume, and the fume is exhausted from the top of the absorption tower and enters into the dust collector for dedusting treatment, and the purified fume is finally exhausted via the blower to the chimney, captured by the bag dust collector and dropped into the hopper, returned to the absorption tower via the re-circulating system to enter into the repeated circulation process.
As shown in fig. 1, the recirculation system is arranged below the bag-type dust collector and comprises a hopper fluidization groove, a flow dividing device and a fluidization chute 17. The desulfurizing agent 6 in the hopper 5 of the dust remover 3 needs to enter the absorption tower 1 for recycling after passing through the hopper fluidization groove 15, the flow dividing device 16 and the fluidization chute 17, but the bottom inclination angle of each device is very small, and the desulfurizing agent cannot smoothly move by the self weight of the desulfurizing agent, so that each device is provided with a plurality of gas fluidization openings, and a large amount of compressed gas is introduced into the fluidization openings, so that the desulfurizing agent 6 can smoothly enter the absorption tower 1 through the hopper fluidization groove 15, the flow dividing device 16 and the fluidization chute 17. Because the semi-dry process technology needs to be provided with a water spraying device in the absorption tower, the desulfurizing agent captured by the dust remover and falling into the hopper has high moisture content, is very easy to be adhered in the existing equipment, can not be fluidized, causes equipment blockage, can not be recycled and the like. Meanwhile, each part of the system needs a large amount of compressed gas for fluidization, and a large amount of energy is wasted.
For this reason, a new solution is needed to solve the above technical problems.
Disclosure of Invention
In order to solve the problems, the utility model discloses a recycling system for semi-dry desulfurization, which can lead a wet desulfurizing agent in a hopper to be quickly scattered and fall through a screw conveyor, and a recycling pipe at the bottom of the screw conveyor can shake or stir the desulfurizing agent due to a hose so as to lead the desulfurizing agent in the screw conveyor to be displaced into an absorption tower.
The technical scheme of the utility model is as follows: the recycling system for semi-dry desulfurization comprises an absorption tower, a dust remover and a recycling system, wherein one ends of the absorption tower and the dust remover are connected with a flue gas conveying channel in the dust remover, a hopper is arranged below the dust remover, a desulfurizing agent is arranged in the hopper, the hopper at the bottom of the dust remover is connected with a feed inlet of a screw conveyor of the recycling system, discharge openings are formed in two sides of the bottom of the screw conveyor, one of the discharge openings is connected with a recycling pipe, the recycling pipe is connected with the absorption tower, and the recycling pipe is a hose.
Further, the feed inlet of the screw conveyor is matched with the rectangular discharge opening of the hopper, and a driving motor of the screw conveyor is provided with forward and reverse rotation.
Further, the lower ends of the discharge openings are respectively provided with a star-shaped discharge valve, the discharged materials at one discharge end of the discharge valves are transported out through the outside of the automobile, and the other discharge valve is connected with the recirculation pipe through a fluidizer.
Further, the bottom of the absorption tower is a smoke inlet, the top of the absorption tower is connected with a dust remover through a pipeline, and a smoke outlet is arranged on one side of the dust remover away from the absorption tower.
Further, the upper part of the absorption tower is provided with a water spray system, and the lower part is provided with a desulfurizing agent system.
Further, one end of the recirculation pipe is connected with the fluidizer, and the tail end of the other end of the recirculation pipe is positioned in the flue gas inlet, and the fluidizer is provided with a compressed gas inlet.
Further, the motors connected with the star-shaped discharge valve and the screw conveyor are all variable frequency motors.
The utility model has the advantages that: 1. according to the utility model, the wet desulfurizing agent in the hopper can be quickly transported and split through the spiral rotating force by the spiral feeder at the bottom of the dust remover, so that the problem of discharging blockage caused by the fact that the desulfurizing agent is accumulated at the bottom of the hopper due to the dampness is avoided, the discharging speed of the desulfurizing agent is accelerated, the fluidizer arranged at the bottom of the hopper in the past is removed, and a large amount of compressed gas is needed for fluidization by the fluidizer, so that a large amount of energy sources can be saved by the structure of the utility model.
2. According to the utility model, the recirculation pipe is arranged at the bottom of the screw conveyor, and because the recirculation pipe is a hose, when the vulcanizing agent in the pipe still cannot achieve the moving effect through the blowing effect of the fluidizer, a worker can be directly called to shake or stir the recirculation pipe, so that the vulcanizing agent in the pipe can be easily transferred into the absorption tower.
3. According to the utility model, the desulfurizing agent in the hopper can be rapidly transported and recycled into the absorption tower for reuse through the cooperation between the screw conveyor and the recycling pipe, so that the cost of enterprises is reduced.
Drawings
FIG. 1 is a schematic diagram of a conventional structure;
FIG. 2 is a schematic diagram of the structure of the present utility model;
fig. 3 is a schematic structural view of a part of the utility model.
Wherein: 1. the device comprises an absorption tower, 2, a flue gas inlet, 3, a dust remover, 4, a flue gas outlet, 5, a hopper, 6, a desulfurizing agent, 7, a screw conveyor, 8, a discharge opening, 9, a discharge valve, 10, a fluidizer, 11, a recirculation pipe, 12, a water spraying system, 13, a desulfurizing agent system, 14, a flue gas inlet, 15, a hopper fluidization groove, 16, a flow dividing device, 17 and a fluidization chute.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 2-3, the recycling system for semi-dry desulfurization comprises an absorption tower 1, a dust remover 3 and a recycling system, wherein one end of the absorption tower 1 and one end of the dust remover 3 are connected to convey flue gas into the dust remover 3, a hopper 5 is arranged below the dust remover 3, a desulfurizing agent 6 is arranged in the hopper 5, the hopper 5 at the bottom of the dust remover 3 is connected with a feed inlet of a screw conveyor 7 of the recycling system, two sides of the bottom of the screw conveyor 7 are provided with discharge openings 8, one of the discharge openings 8 is connected with a recycling pipe 11, the recycling pipe 11 is a hose, when the desulfurizing agent 6 cannot move smoothly due to dead weight, the recycling pipe 11 can be stirred or shaken, so that the recycling pipe 11 smoothly enters the absorption tower 1, the recycling pipe 11 is connected with the absorption tower 1, and the desulfurizing agent in the dust remover 3 is conveyed by the screw conveyor 7 to recycle the materials from the recycling pipe 11 into the absorption tower 1.
The feed inlet of the screw conveyor 7 is matched with the rectangular discharge opening of the hopper 5, and the driving motor of the screw conveyor 7 is provided with forward and reverse rotation, so that the desulfurizing agent can be output from any one of the two discharge openings 8 according to the requirement.
The lower ends of the discharge openings 8 are respectively provided with a star-shaped discharge valve 9, the discharged materials at one discharge end of the discharge valves 9 are transported out through the outside of the automobile, the other discharge valve 9 is connected with a recirculation pipe 11 through a fluidizer 10, and the desulfurizing agent in the recirculation pipe 11 can be injected into the absorption tower 1 through the fluidizer 10.
The bottom of the absorption tower 1 is provided with a flue gas inlet 4, the top of the absorption tower is connected with a dust remover 3 through a pipeline, one side of the dust remover 3 away from the absorption tower 1 is provided with a flue gas outlet 4, the upper part of the absorption tower 1 is provided with a water spraying system 12, and the lower part of the absorption tower is provided with a desulfurizing agent system 13, which is common knowledge of a person skilled in the art and is not repeated herein.
The recirculation pipe 11 is connected at one end thereof to the fluidizer 10 and at the other end thereof to the flue gas inlet 14, the fluidizer 10 being provided with a compressed gas inlet, and the fluidizer 10 being capable of blowing the desulfurizing agent in the recirculation tank 11 into the absorption tower 1.
The motors connected with the star-shaped discharge valve 9 and the screw conveyor 7 are all variable frequency motors.
Working principle: the gas-solid mixed flue gas enters from the bottom of the absorption tower through a flue gas inlet of the absorption tower, then enters into the absorption tower through a pipeline from the top of the absorption tower, the flue gas part purified by the absorption tower is discharged from a flue gas outlet of the absorption tower, the desulfurizing agent of the solid part falls to the bottom of a dust remover hopper, and is conveyed and discharged through a screw conveyer at the bottom of the hopper;
the discharge valve 9 positioned at one side of the bottom of the screw conveyor 7 can be used for carrying out the desulfurization agent as an outward transportation treatment, the discharge opening 8 at the other side is used for transporting the desulfurization agent 6 out of the recirculation pipe 11, because the desulfurization agent 6 is provided with a certain dead weight, the desulfurization agent 6 positioned in the recirculation pipe 11 can be sprayed by vulcanized gas at one side, so that the desulfurization agent 6 smoothly enters the absorption tower 1, and because the recirculation pipe 11 is a hose, when the desulfurization agent 6 is piled up in the recirculation pipe 11, the recirculation pipe 11 can be swayed, and the desulfurization agent 6 in the recirculation pipe can be smoothly moved into the absorption tower 1.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and not limitation, and that the objects of the utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (7)
1. The utility model provides a semi-dry desulfurization is with recycle system, includes absorption tower, dust remover and recycling system, in the one end of absorption tower and dust remover is connected the flue gas and is carried the way dust remover, the below of dust remover is the hopper, there is the desulfurizing agent in the hopper, its characterized in that: the hopper at the bottom of the dust remover is connected with the feed inlet of a screw conveyor of the recycling system, two sides of the bottom of the screw conveyor are provided with discharge openings, one of the discharge openings is connected with a recycling pipe, the recycling pipe is connected with an absorption tower, and the recycling pipe is a hose.
2. The recycling system for semi-dry desulfurization according to claim 1, wherein: the feeding port of the screw conveyor is matched with the rectangular discharging port of the hopper, and the driving motor of the screw conveyor is provided with forward and reverse rotation.
3. The recycling system for semi-dry desulfurization according to claim 1, wherein: the lower ends of the discharge openings are respectively provided with a star-shaped discharge valve, the discharged material at one discharge end of the discharge valves is transported out through the outside of the automobile, and the other discharge valve is connected with the recirculation pipe through a fluidizer.
4. The recycling system for semi-dry desulfurization according to claim 1, wherein: the bottom of the absorption tower is provided with a smoke inlet, the top of the absorption tower is connected with a dust remover through a pipeline, and one side of the dust remover, which is far away from the absorption tower, is provided with a smoke outlet.
5. The recycling system for semi-dry desulfurization according to claim 1, wherein: the upper part of the absorption tower is provided with a water spraying system, and the lower part of the absorption tower is provided with a desulfurizing agent system.
6. The semi-dry desulfurization recycling system according to claim 4, wherein: one end of the recirculation pipe is connected with the fluidizer, the tail end of the other end of the recirculation pipe is positioned in the flue gas inlet, and the fluidizer is provided with a compressed gas inlet.
7. A semi-dry desulfurization recycling system according to claim 3, wherein: the motors connected with the star-shaped discharge valve and the screw conveyor are all variable frequency motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320554451.4U CN219631020U (en) | 2023-03-21 | 2023-03-21 | Recycle system for semi-dry desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320554451.4U CN219631020U (en) | 2023-03-21 | 2023-03-21 | Recycle system for semi-dry desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219631020U true CN219631020U (en) | 2023-09-05 |
Family
ID=87816658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320554451.4U Active CN219631020U (en) | 2023-03-21 | 2023-03-21 | Recycle system for semi-dry desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219631020U (en) |
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2023
- 2023-03-21 CN CN202320554451.4U patent/CN219631020U/en active Active
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