CN113830853A - High-efficient spray drying system of desulfurization waste water - Google Patents
High-efficient spray drying system of desulfurization waste water Download PDFInfo
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- CN113830853A CN113830853A CN202110908362.0A CN202110908362A CN113830853A CN 113830853 A CN113830853 A CN 113830853A CN 202110908362 A CN202110908362 A CN 202110908362A CN 113830853 A CN113830853 A CN 113830853A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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Abstract
The invention provides a high-efficiency spray drying system for desulfurization waste water, wherein two ends of a slurry conveying pipeline are respectively connected with an external desulfurization waste water concentrated solution and a slurry conveying pump liquid inlet, a slurry conveying pump liquid outlet is communicated with a spray drying tower liquid inlet through a high-pressure connecting pipeline, a spray drying tower discharge outlet is connected with a dust remover through a negative pressure conveying dry powder pipeline, and a spray drying tower gas inlet is connected with external hot flue gas through a flue, the invention improves the design of a spray drying tower, the improved hot flue gas and hot air distributor rectifying plate is of a turbine type, a guide plate is of a trough disc type guide grid, so that after the hot flue gas enters the drying tower, before contacting with the atomized desulfurization waste water, a flue gas flow field is uniformly designed without dead corners, the hot flue gas is uniformly diffused in the drying tower to uniformly contact with the concentrated solution, a powder bin is improved into a conical ash hopper without dead corners, ash discharge is facilitated, and ash particles are prevented from caking and sticking to the wall, the emptying section at the bottom of the powder bin is designed to have a large radius, and the pipeline can be effectively prevented from being scaled and blocked.
Description
Technical Field
The invention belongs to the technical field of industrial wastewater treatment, and particularly relates to a high-efficiency spray drying system for desulfurization wastewater.
Background
The desulfurization waste water is the most complex one in the waste water of the whole thermal power plant. The water quality is acidic (the pH value is 4-6), and the water contains a large amount of suspended matters, ammonia nitrogen, heavy metal pollutants, Ca2+, Mg2+, F-, SO42-, Cl-and the like. At present, the relatively hot process for treating the desulfurization wastewater of the power plant in the market is a flue gas method. Concentrating the desulfurization wastewater through multi-effect flash evaporation or MVR, and then drying and solidifying the concentrated solution by using high-temperature flue gas. The atomization means of the drying tower mainly adopts an air flow type spray gun or rotary spraying. These two treatments have the following drawbacks: 1. the flue gas flows bias and the resistance is large. Flue gas drift is a common phenomenon of most drying towers, and due to the uneven flue gas flow field, atomized concentrated solution is not evaporated and dried, salt and dust are not dried, so that wall sticking, even water accumulation at the bottom of a tower and the like occur; 2. the bottom deposition of drying tower blocks up, and drying tower bottom ash bucket is hot flue gas dead angle, and the ash discharge mouth of ash bucket has even been blocked up to some, especially in winter ash bucket bottom accumulation more salt after normal operating leads to the caking to lead to unable ash discharge. 3. The double-fluid atomization spray gun and the three-fluid atomization spray gun are high in air consumption (the gas-liquid ratio is not lower than 300: 1), high in energy consumption, easy to be affected by the air source pressure and the water source pressure, difficult to control, and the gas-liquid ratio often deviates from the normal design range, so that the atomization particle size fluctuation is large, the atomization cone shakes in a tower in a pulse mode, the phenomenon of wall sticking and dust deposition is easy to cause, the system operation resistance is large, and even normal operation cannot be achieved. 4. The atomizer of the rotary spray drying has a complex structure, needs a transmission device and a liquid distribution device, namely an atomizing wheel, has high technical requirements on processing and manufacturing, and has a huge tower body of the rotary spray drying, troublesome installation and inconvenient maintenance. In addition, there is a drying method in which concentrated desulfurization waste water is directly sprayed into a high-temperature flue to be dried, which greatly increases the risk of flue blockage and scaling.
Disclosure of Invention
The invention aims to provide an efficient spray drying system for desulfurization wastewater, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency desulfurization wastewater spray drying system comprises a slurry conveying pipeline, a slurry conveying pump, a high-pressure connecting pipeline, a spray drying tower, a flue and a negative-pressure dry powder conveying pipeline, wherein two ends of the slurry conveying pipeline are respectively connected with an external desulfurization wastewater concentrated solution and a slurry conveying pump inlet;
the spray drying tower is respectively provided with a special spray gun and a hot air distributor, the hot air distributor is positioned at the upper part of the special spray gun and comprises a rectifying plate, a first guide plate and a second guide plate, the rectifying plate is positioned at the upper parts of the first guide plate and the second guide plate, the hot air distributor is communicated with a flue, the special spray gun is communicated with the desulfurization waste water concentrated solution conveyed by a slurry conveying pump, the flue is positioned at the upper part of the rectifying plate, the rectifying plate is welded on the upper end surface of the spray drying tower for example, the flue is communicated with the rectifying plate, and then the flue passes through the rectifying plate, sequentially passes through the first guide plate and the second guide plate and enters the spray drying tower;
the special spray gun comprises a rotary vane and a spray nozzle, wherein the rotary vane is embedded into the spray nozzle and comprises a liquid tangent inlet and a rotary chamber, the liquid tangent inlet sprays external desulfurization waste water concentrated solution, the special spray gun comprises the rotary vane, the spray nozzle and a gun body, the gun body is arranged in a spray drying tower, the top end of the gun body is in threaded connection with the spray nozzle, the rotary vane is embedded into the spray nozzle and comprises a liquid tangent inlet and a rotary chamber, the external desulfurization waste water concentrated solution is sprayed into the gun body, then the desulfurization waste water concentrated solution enters the rotary chamber through the liquid tangent inlet of the rotary vane, the desulfurization waste water concentrated solution obtains rotary kinetic energy in the rotary chamber, the rotary speed is the maximum at the axis center according to the conservation law of rotary momentum, so that a strand of air rotational flow with the pressure equal to the atmospheric pressure is formed in the center of the spray nozzle, the liquid forms an annular film rotating around the air center, and the static pressure energy of the liquid is converted into the kinetic energy of forward liquid film, the high-pressure connecting pipeline penetrates through the spray drying tower, and the high-pressure connecting pipeline enters the spray drying tower part and is communicated with one end of the gun body.
Further modified, the cowling panel shape is turbine formula, and guide plate one and guide plate two are fluted disc formula water conservancy diversion grid, set up many arc vortex blades around the cowling panel center, and the shape that cowling panel and many arc vortex blades wholly present is turbine formula, and turbine formula's setting can let hot flue gas be radial diffusion to the guide plate through vortex blade on.
The improved powder spraying drying machine has the advantages that the bottom of the spray drying tower is provided with the powder bin, the powder bin is the conical ash bucket without dead angles, and the emptying section at the bottom of the powder bin is designed to be large in radius.
Further improved, the pressure of spraying the concentrated desulfurization wastewater into a special spray gun is 2.5-4.0 MPa.
In a further improvement, the material of the spray drying tower is carbon steel, and the lining of the spray drying tower is a high-temperature-resistant anticorrosive coating.
In a further improvement, the powder bin is provided with a pressure transmitter, and the negative pressure dry powder conveying pipeline is provided with a temperature transmitter.
Further improved, a temperature transmitter is arranged on the flue, and an adjusting type air door is arranged between the temperature transmitter and the spray drying tower.
Further improved, a flow transmitter and a pressure transmitter are arranged on the high-pressure connecting pipeline.
Further improved, the spray drying tower is also provided with an internal ladder stand, a peep hole, an external ladder stand and a manhole.
In a further improvement, a switch-type baffle door is arranged on the negative pressure dry powder conveying pipeline.
A desulfurization waste water high efficiency spray drying system, its working procedure is:
firstly, enabling a desulfurization wastewater concentrated solution to enter a liquid inlet of a slurry delivery pump through a slurry delivery pipeline;
secondly, a liquid outlet of the slurry delivery pump lifts the concentrated desulfurization wastewater into a special spray gun of a spray drying tower through a high-pressure connecting pipeline;
thirdly, hot flue gas enters a hot air distributor of a spray drying tower through a flue;
fourthly, the fog drops sprayed out of a nozzle at the top end of the special spray gun are contacted and mixed with hot air regulated by a hot air distributor, and the heat is rapidly transferred to form a powder product;
and fifthly, conveying the powder-like products in the powder bin at the bottom end of the spray drying tower into an ash hopper at the bottom of the dust remover through a negative pressure dry powder conveying pipeline, wherein a vacuum pump is arranged on the negative pressure dry powder conveying pipeline, so that the negative pressure is conveniently pumped out of the negative pressure dry powder conveying pipeline.
Sixthly, the concentrated slurry sprayed into the special spray gun is atomized into fog drops by the rotary vane in a rotating mode and sprayed into the tower through the spray nozzle;
the flue is provided with an adjusting air door to enable hot flue gas with proper temperature to enter a rectifying plate of the spray drying tower through adjustment, then enter two layers of flow guide plates, and the hot flue gas which is adjusted and distributed by the rectifying plate and the two layers of flow guide plates, namely a hot flue gas distributor, uniformly enters the spray drying tower to form a stable gas flow field;
the negative pressure dry powder conveying pipeline is provided with a switch type baffle door, the switch type baffle door is normally opened when the equipment runs, and the switch type baffle door is turned off when the equipment enters a maintenance period.
The slurry delivery pump is a plunger pump, and the variable frequency type plunger pump is a high-pressure plunger pump.
The spray drying tower is internally provided with a hot air and hot air distributor which is positioned at the upper part of the special spray gun, a rectifying plate in the hot air and hot air distributor is of a turbine type, and a guide plate is of a trough plate type guide grid.
The powder bin is a conical ash bucket without dead angles, and the emptying section of the powder granular products is designed with a large radius.
The special spray gun device is applied to the desulfurization wastewater treatment system for the first time.
The external hot smoke is high-temperature smoke with the smoke temperature of about 350 ℃.
The rotary vane is embedded into the nozzle to generate hollow conical spray, the spray consists of a liquid tangent inlet and a rotary chamber, the liquid obtains rotary kinetic energy in the rotary chamber, and the rotary speed is the highest at the axle center speed according to the conservation law of rotary momentum, so that an air rotational flow with the pressure equal to the atmospheric pressure is formed in the center of the nozzle, the liquid forms an annular film rotating around the air center, the static pressure energy of the liquid is converted into the kinetic energy of a liquid film running forwards, the liquid film is ejected from the nozzle at high speed, is stretched and thinned and is finally split into small fog drops, and all the small fog drops are combined into a hollow conical spray crown. The left end and the right end of the end face of the rotary vane are symmetrically provided with a plurality of tangent inlets, and the center of the nozzle is provided with a nozzle hole.
The pressure of the concentrated desulfurization wastewater entering a special spray gun is 2.5-4.0 MPa.
The thickness range of a liquid film sprayed out of the nozzle is approximately 0.5-4 mu m, the nozzle is made of silicon carbide, the spray drying tower is made of carbon steel, a lining is made of high-temperature-resistant anticorrosive paint, a powder bin at the lower end of the spray drying tower is provided with a pressure transmitter, a negative pressure dry powder conveying pipeline is provided with a temperature transmitter, a temperature transmitter is arranged in front of a flue adjusting air door, a flow transmitter and a pressure transmitter are arranged in front of a special spray gun, the dry powder conveying pipeline is a negative pressure pipeline, granular products are extracted by air, and the upper part and the lower part of a tower body of the spray drying tower are respectively provided with a manhole. When the equipment is overhauled, people can conveniently enter the tower body, and the inside and the outside of the tower body of the spray drying tower are respectively provided with the crawling ladder. And when the equipment is overhauled, the climbing of people is facilitated.
The invention aims to overcome the defects of the prior art and provide the efficient spray drying system which has the advantages of high spray drying efficiency, simple process flow, low equipment investment, stable operation and simple and convenient maintenance.
Compared with the prior art, the invention has the beneficial effects that:
1. the desulfurization waste water system is sprayed by a special pressure type spray gun for the first time. The spray gun overcomes the defects of the traditional double-fluid and three-fluid spray gun, and improves the structure and the material with corrosion resistance and abrasion resistance. The concentrated slurry is pumped into an atomizing spray gun by a high-pressure plunger pump without additionally arranging compressed air for assistance, so that the flow field is stable, and the energy consumption is greatly reduced; the atomization effect is good, the atomization particle size is stable, and the defect that the atomization particle size of a traditional two-fluid spray gun fluctuates greatly due to a three-fluid spray gun is effectively overcome; the unique anti-blocking structure design can effectively avoid the blocking of suspended matters with high concentration, is very suitable for the atomization of the concentrated wastewater liquid and ensures the long-term stable operation of a spray gun system;
2. the improved spray drying tower has improved design, the improved rectifying plate of the hot flue gas and hot air distributor is of a turbine type, the guide plate is a groove disc type guide grid, after hot flue gas enters the drying tower and contacts with atomized desulfurization wastewater, a flue gas flow field is uniformly designed without dead angles, the hot flue gas is uniformly diffused in the drying tower and uniformly contacts with concentrated solution, the powder bin is improved into a conical ash hopper without dead angles, ash discharge is facilitated, ash particles are prevented from being agglomerated and adhering to the wall, the emptying section at the bottom of the powder bin is designed with a large radius, and the blockage caused by scaling of a pipeline can be effectively avoided.
3. The material of the spray drying tower is improved, and the carbon steel lining is changed into the high-temperature-resistant anticorrosive coating, so that the equipment investment is reduced, and the operation requirement can be met.
The treatment system for the desulfurization wastewater concentrated solution provided by the invention has the characteristics of short process flow, less equipment and simple maintenance work, the system is stable in operation, slurry after spray drying enters the ash bucket of the dust remover together with fly ash, and solid waste disposal is not required to be considered.
Drawings
FIG. 1 is a schematic view of the overall structure of an efficient spray drying system for desulfurization wastewater according to the present invention;
FIG. 2 is a schematic diagram of a spray drying tower according to the present invention.
In the figure: 1. a slurry delivery conduit; 2. a slurry delivery pump; 3. a high pressure connection pipe; 4. a spray drying tower; 5. a flue; 6. a negative pressure dry powder conveying pipeline; 7. specially-made spray guns; 8. rotating the sheet; 9. a nozzle; 10. a regulating damper; 11. a rectifying plate; 12. a first guide plate; 13. a second guide plate; 14. a powder bin; 15. a switch-type flapper door; 16. an internal ladder stand; 17. a sight glass; 18. an external ladder stand; 19. a pressure transmitter; 20. a temperature transmitter; 21. a manhole.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-2, a high-efficiency spray drying system for desulfurization wastewater comprises a slurry conveying pipeline 1, a slurry conveying pump 2, a high-pressure connecting pipeline 3, a spray drying tower 4, a flue 5 and a negative pressure dry powder conveying pipeline 6, wherein two ends of the slurry conveying pipeline 1 are respectively connected with a concentrated solution of the external desulfurization wastewater and a liquid inlet of the slurry conveying pump 2, a liquid outlet of the slurry conveying pump 2 is communicated with a liquid inlet of the spray drying tower 4 through the high-pressure connecting pipeline 3, a discharge outlet of the spray drying tower 4 is connected with a dust remover through the negative pressure dry powder conveying pipeline 6, a gas inlet of the spray drying tower 4 is connected with external hot flue gas through the flue 5, the slurry conveying pump 2 is, for example, a pump with a model of 3LP35-2/PF3, and the spray drying tower 4 is, for example, a tower body with a model of HF-8000 BY;
the spray drying tower 4 is respectively provided with a special spray gun 7 and a hot air distributor, the hot air distributor is positioned at the upper part of the special spray gun 7, the hot air distributor comprises a rectifying plate 11, a first guide plate 12 and a second guide plate 13, the rectifying plate 11 is positioned at the upper parts of the first guide plate 12 and the second guide plate 13, and the flue 5 is positioned at the upper part of the rectifying plate 11;
the special spray gun 7 comprises a rotary vane 8 and a nozzle 9, the rotary vane 8 is embedded into the nozzle 9, the rotary vane 8 comprises a liquid tangent inlet and a rotary chamber, and the liquid tangent inlet sprays external desulfurization wastewater concentrated solution.
The rectifying plate 11 is in a turbine type, and the first guide plate 12 and the second guide plate 13 are groove disc type guide grids.
The bottom of the spray drying tower 4 is provided with a powder bin 14, the powder bin 14 is a conical ash hopper without dead angles, and the emptying section at the bottom of the powder bin 14 is designed with a large radius.
The pressure of spraying the desulfurization wastewater concentrated solution into a special spray gun is 2.5-4.0 MPa.
The material of the spray drying tower 4 is carbon steel, and the lining of the spray drying tower 4 is high-temperature resistant anticorrosive paint.
The powder bin 14 is provided with a pressure transmitter 19, the negative pressure dry powder conveying pipeline 6 is provided with a temperature transmitter 20, the pressure transmitter 19 is, for example, a transmitter with the model number of CK-2088, and the temperature transmitter 20 is, for example, a transmitter with the signal model number of BRW 600-204.
The flue 5 is provided with a temperature transmitter 20, a regulating type air door 10 is arranged between the temperature transmitter 20 and the spray drying tower 4, and the temperature transmitter 20 on the flue 5 is not shown in the figure.
The high-pressure connecting pipe 3 is provided with a flow transmitter and a pressure transmitter 19, the flow transmitter is, for example, a transmitter with model number YQ2608, and the flow transmitter and the pressure transmitter 19 on the high-pressure connecting pipe 3 are not shown in the figure.
The spray drying tower 4 is further provided with an inner ladder 16, a sight glass 17, an outer ladder 18 and a manhole 21.
The negative pressure dry powder conveying pipeline 6 is provided with a switch type baffle door.
The utility model provides a high-efficient spray drying system of desulfurization waste water, includes thick liquid delivery pipe 1, thick liquid delivery pump 2 and high-pressure connecting tube 3 and spray drying tower 4, still includes flue 5 and negative pressure transport dry powder pipeline 6. The spray drying tower 4 comprises a special spray gun 7, a slurry delivery pump is communicated with the special spray gun 7, a flue 5 is communicated with an air inlet of the spray drying tower 4, and an outlet of a powder bin 14 is communicated with a dust remover.
The spray drying tower 4 is internally provided with a hot air and hot air distributor which is positioned at the upper part of the special spray gun 7, the hot air and hot air distributor comprises a rectifying plate 11, a first guide plate 12 and a second guide plate 13, the rectifying plate 11 is of a turbine type, and the first guide plate 12 and the second guide plate 13 are of a trough-tray type guide grid.
The dust remover comprises an electric dust remover.
The external hot flue gas is high-temperature flue gas.
In the invention, a powder bin at the bottom of the spray drying tower is provided with a pressure transmitter; a temperature transmitter is arranged on an outlet pipeline at the bottom of the powder bin; and a flow transmitter is arranged on the high-pressure connecting pipeline of the outlet of the slurry conveying pump. And a pressure transmitter is arranged on the spray gun. The flue in front of the adjusting type air door is provided with a temperature transmitter.
Example (b): a desulfurization wastewater efficient spray drying system comprises the following steps: inputting the concentrated slurry of the desulfurization waste water into a liquid inlet of a slurry delivery pump 2 through a slurry delivery pipeline 1, pumping the concentrated slurry into a special spray gun 7 through pressurization by the slurry delivery pump 2, arranging a flow transmitter and a pressure transmitter 19 on a high-pressure connecting pipeline 3, performing interlocking adjustment with a frequency converter of the slurry delivery pump 2 to ensure that the pressure of the special spray gun 7 is within a constant pressure range of 2.5-4.0 MPa, opening an adjusting type air door 10, adjusting the opening of the air door through a temperature transmitter 20 to ensure that the tower entering temperature is 350 ℃, allowing the adjusted flue gas to enter a hot air distributor at the top of a spray drying tower 4, uniformly diffusing the hot flue gas in the spray drying tower 4 through adjustment, adjusting the special spray gun 7 to ensure that the concentrated slurry is rotatably atomized into fog drops through a rotary vane 8 and is in contact with the hot flue gas to be mixed, observing the spraying condition in the tower through a sight glass 17, and adjusting the opening of an air inlet of the spray drying tower 4 through the temperature transmitter 20 on a negative pressure dry powder product conveying pipeline 6 at the bottom of a powder bin 14, the temperature of the smoke at the outlet of the spray drying tower 4 is not lower than 125 ℃, the fog drops are completely, uniformly and thoroughly dried, whether the bottom of the powder bin 14 is deposited with dust is observed through a sight glass 17 at the lower part of the tower body of the spray drying tower 4, and whether the bottom of the powder bin 14 is deposited with dust is judged through a pressure transmitter 19 at the bottom of the powder bin 14 to carry out equipment maintenance.
The outer ladder 18 and the inner ladder 16 are retrofit devices for equipment that is ready for service.
The tower body manhole 21 is equipment improvement equipment and is used when equipment is maintained and overhauled.
The spray drying tower 4 tower body peep hole 17 is equipment improvement equipment, and the equipment operation maintenance use has been prepared.
The invention has a complete PLC control system, can realize automatic feeding and discharging, and can realize intelligent control and full-automatic operation of the system according to signals through an interlocking control and protection mechanism on the premise of ensuring safety and stability.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents, and it is intended that the described embodiments of the invention be construed as merely a subset of the embodiments of the invention and not as a whole. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a high-efficient spray drying system of desulfurization waste water which characterized in that: the high-efficiency desulfurization wastewater spray drying system comprises a slurry conveying pipeline (1), a slurry conveying pump (2), a high-pressure connecting pipeline (3), a spray drying tower (4), a flue (5) and a negative-pressure dry powder conveying pipeline (6), wherein two ends of the slurry conveying pipeline (1) are respectively connected with an external desulfurization wastewater concentrated solution and a liquid inlet of the slurry conveying pump (2), a liquid outlet of the slurry conveying pump (2) is communicated with a feed inlet of the spray drying tower (4) through the high-pressure connecting pipeline (3), a discharge outlet of the spray drying tower (4) is connected with a dust remover through the negative-pressure dry powder conveying pipeline (6), and an air inlet of the spray drying tower (4) is connected with external hot flue gas through the flue (5);
a specially-made spray gun (7) and a hot air distributor are respectively installed on the spray drying tower (4), the hot air distributor is positioned at the upper part of the specially-made spray gun (7), the hot air distributor comprises a rectifying plate (11), a first guide plate (12) and a second guide plate (13), the rectifying plate (11) is positioned at the upper parts of the first guide plate (12) and the second guide plate (13), and the flue (5) is positioned at the upper part of the rectifying plate (11);
the special spray gun (7) comprises a rotary vane (8) and a nozzle (9), the rotary vane (8) is embedded into the nozzle (9), the rotary vane (8) comprises a liquid tangent inlet and a rotary chamber, and the liquid tangent inlet sprays external desulfurization wastewater concentrated solution.
2. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein:
the rectifying plate (11) is in a turbine type shape, and the first guide plate (12) and the second guide plate (13) are groove disc type guide grids.
3. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: the powder spraying drying tower (4) bottom is powder storehouse (14), powder storehouse (14) are no dead angle toper ash bucket, powder storehouse (14) bottom evacuation section is the large radius design.
4. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: the pressure of spraying the concentrated desulfurization wastewater into the special spray gun is 2.5-4.0 MPa.
5. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: the material of the spray drying tower (4) is carbon steel, and the lining of the spray drying tower (4) is high-temperature-resistant anticorrosive paint.
6. The desulfurization wastewater high-efficiency spray drying system according to claim 3, characterized in that: and a pressure transmitter (19) is arranged on the powder bin (14), and a temperature transmitter (20) is arranged on the negative pressure dry powder conveying pipeline (6).
7. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: be provided with temperature transmitter (20) on flue (5), be equipped with regulation type air door (10) between temperature transmitter (20) and spray drying tower (4).
8. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: and a flow transmitter and a pressure transmitter (19) are arranged on the high-pressure connecting pipeline (3).
9. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: the spray drying tower (4) is also provided with an internal ladder (16), a sight glass (17), an external ladder (18) and a manhole (21).
10. The desulfurization waste water high-efficiency spray drying system of claim 1, wherein: and a switch-type baffle door is arranged on the negative pressure dry powder conveying pipeline (6).
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| CN2021106305747 | 2021-06-07 | ||
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| CN202110908362.0A Pending CN113830853A (en) | 2021-06-07 | 2021-08-09 | High-efficient spray drying system of desulfurization waste water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385548A (en) * | 2022-08-31 | 2022-11-25 | 重庆三峰卡万塔环境产业有限公司 | Sludge spray drying device and method |
| CN117886387A (en) * | 2024-03-18 | 2024-04-16 | 南京依涛环保科技有限公司 | Efficient flow-equalizing anti-adhesion drying tower |
| CN117886386A (en) * | 2024-03-14 | 2024-04-16 | 南京依涛环保科技有限公司 | Single-fluid spray evaporation system for drying desulfurization wastewater concentrated solution |
| CN117902659A (en) * | 2024-03-18 | 2024-04-19 | 南京依涛环保科技有限公司 | Desulfurization wastewater advanced treatment method and process device |
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2021
- 2021-08-09 CN CN202121846687.2U patent/CN216191199U/en active Active
- 2021-08-09 CN CN202110908362.0A patent/CN113830853A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385548A (en) * | 2022-08-31 | 2022-11-25 | 重庆三峰卡万塔环境产业有限公司 | Sludge spray drying device and method |
| CN115385548B (en) * | 2022-08-31 | 2024-08-06 | 重庆三峰卡万塔环境产业有限公司 | Sludge spray drying device and method |
| CN117886386A (en) * | 2024-03-14 | 2024-04-16 | 南京依涛环保科技有限公司 | Single-fluid spray evaporation system for drying desulfurization wastewater concentrated solution |
| CN117886387A (en) * | 2024-03-18 | 2024-04-16 | 南京依涛环保科技有限公司 | Efficient flow-equalizing anti-adhesion drying tower |
| CN117902659A (en) * | 2024-03-18 | 2024-04-19 | 南京依涛环保科技有限公司 | Desulfurization wastewater advanced treatment method and process device |
| CN117886387B (en) * | 2024-03-18 | 2024-05-14 | 南京依涛环保科技有限公司 | Efficient flow-equalizing anti-adhesion drying tower |
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