CN213537612U - Concentrated water crystallization unit - Google Patents
Concentrated water crystallization unit Download PDFInfo
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- CN213537612U CN213537612U CN202022466363.8U CN202022466363U CN213537612U CN 213537612 U CN213537612 U CN 213537612U CN 202022466363 U CN202022466363 U CN 202022466363U CN 213537612 U CN213537612 U CN 213537612U
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- crystallizer
- concentrated water
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- heater
- spray
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Abstract
The utility model discloses a dense water crystallization unit, including spraying the crystallizer, the inside that sprays the crystallizer is provided with atomizer, it is provided with the coarse salt discharge port on the crystallizer to spray, it has connected gradually circulating heater, circulating fan, backheat heater, new fan through the circulation hot-blast main to spray the crystallizer, last heat source entry and the heat source export of being provided with of circulating heater, be provided with the hydrofuge air mouth on the backheat heater, the backheat heater is connected with circulating fan through hydrofuge wind channel, be provided with the settlement separator on the hydrofuge wind channel, be provided with the export of thin salt on the settlement separator. The utility model realizes the evaporation and crystallization of the concentrated water, thereby avoiding the problems of crystallization and blockage in the heating process of the concentrated water; waste heat resources in the industrial production process can be fully utilized, and the energy consumption cost is saved; the heat exchanger is not required to be made of expensive corrosion-resistant materials, so that the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to an environmental protection technology field especially relates to a dense water crystallization unit.
Background
The method is characterized in that a large amount of high-salinity sewage is generated in the production process of production enterprises such as power plants, chemical plants and the like, and mainly comprises reverse osmosis concentrated water with the salt content of 30000-50000mg/L and desulfurization waste water with the salt content of 10000-20000 mg/L. The high-salinity wastewater is directly discharged to the environment, so that the environment is seriously polluted, and the ecological crisis is caused. In order to reduce environmental hazards, the common method is to perform evaporation and concentration on the high-salinity sewage, and finally crystallize and separate out salt, so as to recycle the high-salinity sewage as solid waste or resources. In the sewage crystallization stage, because the crystal salt is usually attached to the heat exchange surface and is generated and grown, the heat exchange effect is seriously influenced, a channel can be blocked, the equipment is damaged, and a concentrated water crystallization unit is provided aiming at the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a concentrated water crystallization unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dense water crystallization unit, is including spraying the crystallizer, the inside that sprays the crystallizer is provided with atomizer, it is provided with the coarse salt discharge port on the crystallizer to spray, it has connected gradually circulating heater, circulating fan, backheat heater, new fan through the circulation hot-blast main to spray the crystallizer, last heat source entry and the heat source export of being provided with of circulating heater, be provided with the hydrofuge air mouth on the backheat heater, the backheat heater is connected with circulating fan through hydrofuge wind channel, be provided with the settlement separator on the hydrofuge wind channel, be provided with the export of thin salt on the settlement separator, the settlement separator passes through the downcomer and is connected with the spray crystallizer.
Preferably, a heat source regulating valve is arranged on the heat source inlet.
Preferably, the atomizing nozzle is connected with a concentrated water pipeline, and the concentrated water pipeline penetrates through the spraying crystallizer.
Preferably, the crude salt discharge port is positioned at the bottom of the spray crystallizer, the downcomer is connected to the top of the spray crystallizer, and the circulating hot air pipe is connected to the bottom of the spray crystallizer.
Preferably, the fine salt outlet is positioned at the bottom of the sedimentation separator, the downcomer is inserted into the lower part of the interior of the sedimentation separator, and the moisture exhaust duct is inserted into the upper part of the interior of the sedimentation separator.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the circulating air is used as a medium and is directly contacted with the concentrated water in the spraying crystallizer to realize the evaporative crystallization of the concentrated water, thereby avoiding the problems of crystallization and blockage in the heating process of the concentrated water.
2. The circulating air is used as a medium, so that positive pressure can be maintained and crystallization is performed at a positive pressure when the crystallization temperature is lower than 80 ℃, waste heat resources in the industrial production process can be fully utilized, and the energy consumption cost is saved.
3. Because the concentrated water and the heat source do not have a direct heat exchange process, the heat exchanger does not need to be made of expensive corrosion-resistant materials, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a flow chart of a concentrated water crystallization unit provided by the utility model.
In the figure: 1. the system comprises a spray crystallizer, 2, an atomizing nozzle, 3, a concentrated water pipeline, 4, a crude salt discharge port, 5, a circulating hot air pipeline, 6, a heat source regulating valve, 7, a heat source inlet, 8, a circulating heater, 9, a heat source outlet, 10, a circulating fan, 11, a fine salt outlet, 12, a fresh air fan, 13, a moisture exhaust air port, 14, a regenerative heater, 15, a moisture exhaust air channel, 16, a sedimentation separator, 17 and a downcomer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a concentrated water crystallization unit comprises a spray crystallizer 1, an atomizing nozzle 2 is arranged inside the spray crystallizer 1, a coarse salt discharge port 4 is arranged on the spray crystallizer 1, the spray crystallizer 1 is sequentially connected with a circulating heater 8, a circulating fan 10, a regenerative heater 14 and a fresh air fan 12 through a circulating hot air pipe 5, a heat source inlet 7 and a heat source outlet 9 are arranged on the circulating heater 8, a moisture exhaust air port 13 is arranged on the regenerative heater 14, the regenerative heater 14 is connected with the circulating fan 10 through a moisture exhaust air duct 15, a sedimentation separator 16 is arranged on the moisture exhaust air duct 15, a fine salt outlet 11 is arranged on the sedimentation separator 16, and the sedimentation separator 16 is connected with the spray crystallizer 1 through a down pipe 17.
The heat source inlet 7 is provided with a heat source regulating valve 6.
The atomizing nozzle 2 is connected with a concentrated water pipeline 3, and the concentrated water pipeline 3 penetrates through the spray crystallizer 1.
The crude salt discharge port 4 is positioned at the bottom of the spray crystallizer 1, the downcomer 17 is connected at the top of the spray crystallizer 1, and the circulating hot air pipe 5 is connected at the bottom of the spray crystallizer 1.
The fine salt outlet 11 is positioned at the bottom of the settling separator 16, the downcomer 17 is inserted into the lower part of the interior of the settling separator 16, and the moisture exhaust duct 15 is inserted into the upper part of the interior of the settling separator 16.
The working principle is as follows: the circulating fan 10 sends circulating air into the circulating heater 8, the circulating air is heated to more than 80 ℃ by a heat source, then the circulating air enters the spray crystallizer 1 through the circulating hot air pipe 5, the circulating air and the thick water liquid drops sprayed by the atomizing nozzle 2 in the spray crystallizer 1 carry out heat exchange, the temperature of the circulating air is reduced, meanwhile, the thick water liquid drops absorb heat and evaporate to form crystalline salt, the large-particle crystalline salt is settled to the bottom of the spray crystallizer 1 and is discharged from a crude salt discharge port 4, the fine crystalline salt falls from the top of the spray crystallizer 1 along with the circulating air and enters the settling pipe 17 and then enters the settling separator 16, the fine salt is separated in the settling separator 16 through gravity settling, wherein the fine salt is discharged from the bottom of the settling separator 16, one part of the circulating air is sent to the circulating fan 10, the other part of the circulating air is sent to the exhaust channel 15 and enters the regenerative heater 14, and the wet air is discharged in the regenerative heater 14 to exchange heat with the environment fresh air sent by the, the fresh air is heated, the temperature of the moisture-exhausting air is reduced and then discharged, and the heated fresh air is sent to the inlet of the circulating fan 10.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A concentrated water crystallization unit comprises a spray crystallizer (1) and is characterized in that an atomizing nozzle (2) is arranged inside the spray crystallizer (1), a coarse salt discharge port (4) is formed in the spray crystallizer (1), the spray crystallizer (1) is sequentially connected with a circulating heater (8), a circulating fan (10), a regenerative heater (14) and a fresh fan (12) through a circulating hot air pipe (5), a heat source inlet (7) and a heat source outlet (9) are formed in the circulating heater (8), a moisture exhaust air port (13) is formed in the regenerative heater (14), the regenerative heater (14) is connected with the circulating fan (10) through a moisture exhaust air duct (15), a sedimentation separator (16) is arranged on the moisture exhaust air duct (15), and a fine salt outlet (11) is formed in the sedimentation separator (16), the sedimentation separator (16) is connected with the spray crystallizer (1) through a downcomer (17).
2. A concentrated water crystallization unit according to claim 1, characterized in that the heat source inlet (7) is provided with a heat source regulating valve (6).
3. A concentrated water crystallization unit according to claim 1, characterized in that the atomizing nozzles (2) are connected with concentrated water pipes (3), and the concentrated water pipes (3) penetrate the spray crystallizer (1).
4. A concentrated water crystallization unit according to claim 1, characterized in that the crude salt discharge port (4) is located at the bottom of the spray crystallizer (1), the downcomer (17) is connected to the top of the spray crystallizer (1), and the circulating hot blast pipe (5) is connected to the bottom of the spray crystallizer (1).
5. A concentrated water crystallization unit according to claim 1, characterized in that the fine salt outlet (11) is located at the bottom of the settling separator (16), the downcomer (17) is inserted into the lower part of the interior of the settling separator (16), and the moisture removal duct (15) is inserted into the upper part of the interior of the settling separator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466363.8U CN213537612U (en) | 2020-10-30 | 2020-10-30 | Concentrated water crystallization unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466363.8U CN213537612U (en) | 2020-10-30 | 2020-10-30 | Concentrated water crystallization unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213537612U true CN213537612U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022466363.8U Active CN213537612U (en) | 2020-10-30 | 2020-10-30 | Concentrated water crystallization unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213537612U (en) |
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2020
- 2020-10-30 CN CN202022466363.8U patent/CN213537612U/en active Active
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