CN216654075U - Semidry flue gas desulfurization system - Google Patents
Semidry flue gas desulfurization system Download PDFInfo
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- CN216654075U CN216654075U CN202122893335.9U CN202122893335U CN216654075U CN 216654075 U CN216654075 U CN 216654075U CN 202122893335 U CN202122893335 U CN 202122893335U CN 216654075 U CN216654075 U CN 216654075U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model relates to a semidry flue gas desulfurization system which comprises a Venturi desulfurization tower, wherein a flue gas inlet is arranged below the Venturi desulfurization tower, a hydrated lime inlet and a water spray nozzle are arranged above the Venturi desulfurization tower, a flue gas outlet is arranged at the top of the Venturi desulfurization tower, the outer end of the flue gas outlet is connected with a bag-type dust remover, a clean flue gas outlet is arranged at the upper end of one side of the bag-type dust remover, the clean flue gas outlet is connected with an exhaust fan and a chimney, a plurality of ash hoppers are arranged at the bottom end of the bag-type dust remover, each ash hopper is provided with a discharge pipe and a return pipe, all the discharge pipes and the return pipes are provided with gate valves, an air conveying chute is arranged below the bag-type dust remover, a plurality of feed inlets are arranged on the air conveying chute and are respectively connected with each return pipe, and a discharge outlet of the air conveying chute is connected to the lower part of the contraction part of the Venturi desulfurization tower; outlets of all the discharging pipes are connected to a scraper conveyor, and a discharging port of the scraper conveyor is connected to an ash bin; the utility model reduces the treatment cost and improves the economic benefit.
Description
Technical Field
The utility model relates to the field of desulfurization equipment, in particular to a semidry flue gas desulfurization system.
Background
Some industries in industrial production can generate sulfur-containing waste gas, the sulfur-containing waste gas cannot be directly discharged into the atmosphere, and the sulfur-containing waste gas must be subjected to desulfurization treatment, the existing desulfurization method generally adopts wet desulfurization, namely a spray tower is adopted to spray the flue gas to generate neutralization reaction, the treatment method has high efficiency, but waste water is generated and needs to be treated, and the treatment cost is increased.
Disclosure of Invention
The utility model aims to solve the problems that the existing wet desulphurization generates wastewater and increases the treatment cost, and provides a semidry flue gas desulphurization system.
The specific scheme of the utility model is as follows: a semidry flue gas desulfurization system comprises a Venturi desulfurization tower, wherein a contraction part is arranged at the lower end of the Venturi desulfurization tower, a flue gas inlet is arranged below the contraction part, a slaked lime inlet and a water spray opening are arranged above the contraction part, a slaked lime bin is arranged outside the slaked lime inlet, a discharging pipe is arranged at the bottom of the slaked lime bin, a conveying pipe is arranged at an outlet at the bottom of the discharging pipe, one end of the conveying pipe is connected with an air blower, the other end of the conveying pipe is connected to the slaked lime inlet, a spray gun is arranged outside the water spray opening, the input end of the spray gun is connected with a water pump, and the water pump is connected to a process water tank; the top of the Venturi desulfurization tower is provided with a flue gas outlet, the outer end of the flue gas outlet is connected with a bag-type dust remover, the upper end of one side of the bag-type dust remover is provided with a clean flue gas outlet, the clean flue gas outlet is connected with an exhaust fan and a chimney, the bottom end of the bag-type dust remover is provided with a plurality of ash hoppers, each ash hopper is provided with a discharge pipe and a return pipe, all the discharge pipes and the return pipes are provided with gate valves, an air conveying chute is arranged below the bag-type dust remover, the air conveying chute is provided with a plurality of feed inlets and is respectively connected with each return pipe, and a discharge outlet of the air conveying chute is connected below a contraction part of the Venturi desulfurization tower; the outlets of all the discharging pipes are connected to a scraper conveyor, and the discharge port of the scraper conveyor is connected to an ash bin.
The outlet of the scraper conveyor is connected with a vertical tailing conveying pipeline, a compressed air pipe is arranged at the outlet of the bottom of the tailing conveying pipeline, one end of the compressed air pipe is connected with a compressed air source, and the other end of the compressed air pipe is connected to the ash bin.
The bottom of the Venturi desulfurization tower is provided with a slag discharge port, the bottom of the slag discharge port is provided with a compressed air pipe, one end of the compressed air pipe is connected to the compressed air source, and the other end of the compressed air pipe is connected to the ash bin.
The spray gun is provided with a water inlet pipe and a water return pipe, wherein the water inlet pipe and the water return pipe are both connected to a process water tank, and regulating valves are arranged on the water inlet pipe and the water return pipe and are used for regulating water flow.
The working principle of the utility model is as follows: sulfurous flue gas enters the bottom of the Venturi desulfurization tower, flows to an upper outlet under the action of an exhaust fan, simultaneously, slaked lime is input into the Venturi tower through the slaked lime, a small amount of process water is sprayed into the tower through a spray gun, the slaked lime and the process water flow from top to bottom, the flue gas flows from bottom to top, the mixture of the slaked lime and the process water after being mixed is concentrated at the upper end of the Venturi tower for desulfurization reaction, the dusty flue gas after the reaction is finished enters a bag-type dust remover for dedusting treatment, the generated clean flue gas is emptied through a chimney, the dust is collected into an ash hopper in a centralized manner, the ash in the ash hopper passes through a material returning pipe, an air conveying chute returns into the Venturi desulfurization tower for circulation for several times, and finally, a gate valve for closing the material returning pipe is switched to open, so that the completely reacted ash is collected into an ash bin.
The utility model has the following beneficial effects: replaces the wet desulphurization process, avoids the treatment of the waste water and reduces the treatment cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-bag dust collector, 2-Venturi desulfurizing tower, 21-contraction part, 3-exhaust fan, 4-scraper conveyor, 4' -scraper conveyor, 5-air conveying chute, 6-spray gun, 7-slaked lime bin, 8-compressed air pipe, 9-process water tank, 10-ash bin, 11-conveying pipe, 12-blower, 13-discharging pipe, 14-returning pipe and 15-tailing conveying pipe.
Detailed Description
Referring to fig. 1, the embodiment is a semidry flue gas desulfurization system, which includes a venturi desulfurization tower 2, a contraction part 21 is arranged at the lower end of the venturi desulfurization tower 2, a flue gas inlet is arranged below the contraction part 21, a slaked lime inlet and a water spray opening are arranged above the contraction part 21, a slaked lime bin 7 is arranged outside the slaked lime inlet, a discharging pipe is arranged at the bottom of the slaked lime bin 7, a conveying pipe 11 is arranged at an outlet at the bottom of the discharging pipe, one end of the conveying pipe 11 is connected with an air blower 12, the other end of the conveying pipe is connected to the slaked lime inlet, a spray gun 6 is arranged outside the water spray opening, an input end of the spray gun 6 is connected with a water pump, and the water pump is connected to a process water tank 9; the top of the Venturi desulfurization tower 2 is provided with a flue gas outlet, the outer end of the flue gas outlet is connected with a bag-type dust collector 1, the upper end of one side of the bag-type dust collector 1 is provided with a clean flue gas outlet, the clean flue gas outlet is connected with an exhaust fan 3 and a chimney, the bottom end of the bag-type dust collector 1 is provided with a plurality of ash hoppers, each ash hopper is provided with a discharge pipe 13 and a return pipe 14, all the discharge pipes 13 and the return pipes 14 are provided with gate valves, two scraper conveyors are arranged below the bag-type dust collector 1, the outlet of one scraper conveyor 4 is connected with an air conveying chute 5, the feed inlet of the scraper conveyor 4 is connected with each return pipe 14, and the discharge outlet of the air conveying chute 5 is connected below a contraction part 21 of the Venturi desulfurization tower 2; the outlets of all the discharge pipes 13 are connected to another scraper conveyor 4 ', and the discharge outlet of the scraper conveyor 4' is connected to the ash bin 10.
In this embodiment, the outlet of the scraper conveyor 4' is connected with a vertical tailing conveying pipeline 15, a compressed air pipe 8 is arranged at the outlet at the bottom of the tailing conveying pipeline 15, one end of the compressed air pipe 8 is connected with a compressed air source, and the other end of the compressed air pipe is connected to the ash bin 10.
This embodiment 2 bottoms in venturi desulfurizing tower are equipped with row cinder notch, and row cinder notch bottom is equipped with a compressed air pipe 8, and 8 one end of compressed air pipe are connected to compressed air source, the other end is connected to ash bin 10.
This embodiment spray gun 6 is equipped with inlet tube and wet return, and inlet tube and wet return all are connected to technology water tank 9, all are equipped with the governing valve on inlet tube and the wet return, and the governing valve is used for adjusting discharge to the messenger spouts the water yield control in the venturi desulfurizing tower 2 at optimum range.
Claims (4)
1. The utility model provides a semidry process flue gas desulfurization system, includes the venturi desulfurizing tower, and the venturi desulfurizing tower lower extreme is equipped with constriction part, characterized by: a flue gas inlet is arranged below the contraction part, a slaked lime inlet and a water spray opening are arranged above the contraction part, a slaked lime bin is arranged outside the slaked lime inlet, a discharging pipe is arranged at the bottom of the slaked lime bin, a conveying pipe is arranged at an outlet at the bottom of the discharging pipe, one end of the conveying pipe is connected with an air blower, the other end of the conveying pipe is connected to the slaked lime inlet, a spray gun is arranged outside the water spray opening, the input end of the spray gun is connected with a water pump, and the water pump is connected to a process water tank; the top of the Venturi desulfurization tower is provided with a flue gas outlet, the outer end of the flue gas outlet is connected with a bag-type dust remover, the upper end of one side of the bag-type dust remover is provided with a clean flue gas outlet, the clean flue gas outlet is connected with an exhaust fan and a chimney, the bottom end of the bag-type dust remover is provided with a plurality of ash hoppers, each ash hopper is provided with a discharge pipe and a return pipe, all the discharge pipes and the return pipes are provided with gate valves, an air conveying chute is arranged below the bag-type dust remover, the air conveying chute is provided with a plurality of feed inlets and is respectively connected with each return pipe, and a discharge outlet of the air conveying chute is connected below a contraction part of the Venturi desulfurization tower; the outlets of all the discharging pipes are connected to a scraper conveyor, and the discharge port of the scraper conveyor is connected to an ash bin.
2. The semidry flue gas desulfurization system according to claim 1, wherein: the outlet of the scraper conveyor is connected with a vertical tailing conveying pipeline, a compressed air pipe is arranged at the outlet of the bottom of the tailing conveying pipeline, one end of the compressed air pipe is connected with a compressed air source, and the other end of the compressed air pipe is connected to the ash bin.
3. The semidry flue gas desulfurization system according to claim 2, wherein: the bottom of the Venturi desulfurization tower is provided with a deslagging port, the bottom of the deslagging port is provided with a compressed air pipe, one end of the compressed air pipe is connected to a compressed air source, and the other end of the compressed air pipe is connected to an ash bin.
4. The semidry flue gas desulfurization system according to claim 1, wherein: the spray gun is equipped with inlet tube and wet return, and inlet tube and wet return all are connected to the technology water tank, all are equipped with the governing valve on inlet tube and the wet return, and the governing valve is used for adjusting discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122893335.9U CN216654075U (en) | 2021-11-24 | 2021-11-24 | Semidry flue gas desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122893335.9U CN216654075U (en) | 2021-11-24 | 2021-11-24 | Semidry flue gas desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216654075U true CN216654075U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122893335.9U Active CN216654075U (en) | 2021-11-24 | 2021-11-24 | Semidry flue gas desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216654075U (en) |
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2021
- 2021-11-24 CN CN202122893335.9U patent/CN216654075U/en active Active
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