CN112047408A - High-salt high-organic-matter wastewater treatment evaporation tower and treatment method thereof - Google Patents
High-salt high-organic-matter wastewater treatment evaporation tower and treatment method thereof Download PDFInfo
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- CN112047408A CN112047408A CN202010685614.3A CN202010685614A CN112047408A CN 112047408 A CN112047408 A CN 112047408A CN 202010685614 A CN202010685614 A CN 202010685614A CN 112047408 A CN112047408 A CN 112047408A
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- heat exchange
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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
- C02F1/042—Prevention of deposits
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention provides a high-salinity high-organic matter wastewater treatment evaporation tower, which comprises a tower body, wherein a heat exchange chamber is arranged in the tower body, a steam outlet communicated with the heat exchange chamber is formed in the top end of the tower body, and a concentrated solution discharge port is formed in the bottom end of the tower body; at least one layer of heat exchange tubes is arranged in the heat exchange chamber, and a spraying device is arranged above any layer of heat exchange tubes in the heat exchange chamber. The waste water is evaporated at normal pressure and medium and low temperature (below 55 ℃), a pressure container is not needed, the safety is high, the material is not denatured and hardened under the condition of medium and low temperature (below 55 ℃), the waste water sprayed by the spraying device has a scouring effect on the heat exchange tube, and the problem that the heat exchange efficiency is reduced due to the fact that crystals are attached to the surface of the heat exchange tube is avoided.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, in particular to a high-salinity high-organic-matter wastewater treatment evaporation tower and a treatment method thereof.
Background
The method for treating the high-salt high-organic wastewater generally comprises a membrane method, a distillation method and the like. The membrane method is easy to block, the membrane needs to be replaced regularly, the concentration degree is limited, and the generated concentrated solution still needs to be treated by a distillation method. When conventional concentration evaporation equipment such as MVR and MED operates under the working conditions of high temperature and high pressure, the content of secondary pollutants in condensed water is high, scaling and blockage are easy, the failure rate is high, and shutdown cleaning is required frequently.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a high-salinity high-organic-matter wastewater treatment evaporation tower and a treatment method thereof.
The invention provides a high-salinity high-organic matter wastewater treatment evaporation tower which comprises a tower body, wherein a heat exchange chamber is arranged in the tower body, a steam outlet communicated with the heat exchange chamber is formed in the top end of the tower body, and a concentrated solution discharge port is formed in the bottom end of the tower body; at least one layer of heat exchange tubes is arranged in the heat exchange chamber, and a spraying device is arranged above any layer of heat exchange tubes in the heat exchange chamber.
Preferably, 1-4 layers of heat exchange tubes are arranged in the heat exchange chamber, and the outlet end of the upper layer of heat exchange tubes is communicated with the inlet end of the lower layer of heat exchange tubes.
Preferably, an air chamber positioned below the heat exchange chamber is further arranged in the tower body, an air inlet pipe communicated with the air chamber is connected to the tower body, and a gas-liquid separation tank is arranged at the joint of the air chamber and the heat exchange chamber.
Preferably, the top end of the heat exchange chamber is provided with a mist eliminator close to the discharge port.
Preferably, the foam catcher adopts a baffle type foam catcher, and the distance between the baffles of the foam catcher is 10-20 mm.
Preferably, the spraying device comprises a spraying pipe positioned above the heat exchange pipe, and the spraying pipe is provided with a plurality of anti-blocking solid conical nozzles with nozzles facing the heat exchange pipe below the spraying pipe.
Preferably, the heat exchange tube is an internally threaded titanium tube.
The invention provides a high-salinity high-organic-matter wastewater treatment method, which comprises the following steps:
s1, introducing dry air in a normal pressure state into the air inlet pipe;
s2, introducing high-pressure medium-temperature gaseous refrigerants to the uppermost heat exchange tube;
and S3, introducing the wastewater into the spray pipe.
Preferably, in S1, the temperature of the drying air is 40 ℃ to 50 ℃.
Preferably, in S2, the condensation temperature of the gaseous refrigerant is 55-62 ℃; preferably, in S3, the temperature of the wastewater is above 40 ℃.
According to the high-salt high-organic-matter wastewater treatment evaporation tower provided by the invention, the wastewater sprayed by the spraying device has a scouring effect on the heat exchange pipe, so that the phenomenon that the heat exchange efficiency is reduced due to the fact that crystals are attached to the surface of the heat exchange pipe is avoided, the wastewater is evaporated at normal pressure and medium and low temperature (below 55 ℃), a pressure container is not needed, the safety is high, and materials are not denatured and hardened under the condition of medium and low temperature (below 55 ℃).
Drawings
FIG. 1 is a schematic structural diagram of a high-salinity high-organic wastewater treatment evaporation tower provided by the invention.
Detailed Description
Referring to fig. 1, the invention provides a high-salinity high-organic wastewater treatment evaporation tower, which comprises a tower body 1, wherein:
the tower body 1 is internally provided with a heat exchange chamber 2, the top end of the tower body 1 is provided with a steam outlet communicated with the heat exchange chamber 2, and the bottom end of the tower body 1 is provided with a concentrated solution discharge port. 1-4 layers of heat exchange tubes 3 are arranged in the heat exchange chamber 2, the outlet end of the upper layer of heat exchange tubes 3 is communicated with the inlet end of the lower layer of heat exchange tubes 3, and a spraying device 4 is arranged above any layer of heat exchange tubes 3 in the heat exchange chamber 2.
In the concrete embodiment, the tower body 1 is also internally provided with an air chamber 7 positioned below the heat exchange chamber 2, the tower body 1 is connected with an air inlet pipe communicated with the air chamber, and the joint of the air chamber and the heat exchange chamber 2 is provided with a gas-liquid separation tank 5.
In the specific embodiment, the top end of the heat exchange chamber 2 is provided with a mist eliminator 6 at a position close to a discharge port, the mist eliminator 6 adopts a baffle type mist eliminator 6, and the distance between baffles of the mist eliminator 6 is 10-20 mm.
In a specific embodiment, the spraying device 4 comprises a spraying pipe positioned above the heat exchange pipe 3, and a plurality of anti-blocking solid conical nozzles with nozzles facing the heat exchange pipe 3 below the spraying pipe are mounted on the spraying pipe.
In the specific embodiment, the heat exchange tube 3 is an internally threaded titanium tube.
The invention also provides a high-salinity high-organic matter wastewater treatment method, which comprises the following steps:
s1, introducing dry air with the temperature of 40-50 ℃ in a normal pressure state into the air inlet pipe;
s2, introducing high-pressure gaseous refrigerant with the condensation temperature of 55-62 ℃ into the uppermost heat exchange tube 3;
s3, introducing waste water into the spray pipe, wherein the temperature of the waste water is higher than 40 ℃.
The invention dry air enters from the air chamber 7, passes through the gas-liquid separation tank 5 and passes through the multilayer heat exchange tubes 3; the multi-layer spraying device 4 uniformly sprays wastewater with a certain concentration to the heat exchange tubes 3 below the multi-layer spraying device respectively, and the sprayed wastewater has a certain scouring effect on the heat exchange tubes 3 to prevent scaling; the high-pressure medium-temperature gaseous refrigerant enters from the inlet end of the uppermost heat exchange tube 3, and heat released by condensation of the refrigerant exchanges heat with the wastewater on the outer surface of the heat exchange tube 3 to obtain a high-pressure medium-temperature liquid refrigerant flowing out from the outlet end of the lowermost heat exchange tube 3; the waste water is evaporated after obtaining heat to form saturated vapor, the saturated vapor enters the mist eliminator 4 along with wind, fine liquid drops carried in the vapor are removed by the mist eliminator 4, and then the vapor is discharged from a vapor outlet at the top of the tower body 1 and enters a vapor condensing device; the evaporated waste water forms a concentrated solution which falls into the gas-liquid separation tank 5 and is discharged out of the tower body 1 through a discharge port.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The high-salt high-organic matter wastewater treatment evaporation tower is characterized by comprising a tower body (1), wherein a heat exchange chamber (2) is arranged in the tower body (1), a steam outlet communicated with the heat exchange chamber (2) is arranged at the top end of the tower body (1), and a concentrated solution discharge port is arranged at the bottom end of the tower body (1); at least one layer of heat exchange tube (3) is arranged in the heat exchange chamber (2), and a spraying device (4) is arranged above any layer of heat exchange tube (3) in the heat exchange chamber (2).
2. The high-salt high-organic wastewater treatment evaporation tower as claimed in claim 1, wherein 1-4 layers of heat exchange tubes (3) are arranged in the heat exchange chamber (2), and the outlet end of the upper layer of heat exchange tubes (3) is communicated with the inlet end of the lower layer of heat exchange tubes (3).
3. The high-salinity high-organic-matter wastewater treatment evaporation tower as claimed in claim 1, wherein an air chamber (7) located below the heat exchange chamber (2) is further arranged in the tower body (1), the tower body (1) is connected with an air inlet pipe communicated with the air chamber (7), and a gas-liquid separation tank (5) is arranged at the connection part of the air chamber (7) and the heat exchange chamber (2).
4. The high-salinity high-organic wastewater treatment evaporation tower according to any one of claims 1 to 3, characterized in that a mist eliminator (6) is installed at the top end of the heat exchange chamber (2) close to the discharge outlet.
5. The high-salinity high-organic-matter wastewater treatment evaporation tower as claimed in claim 4, wherein the mist eliminator (6) is a baffle type mist eliminator (6), and the baffle spacing of the mist eliminator (6) is 10-20 mm.
6. The high-salt high-organic wastewater treatment evaporation tower of any one of claims 1 to 3, wherein the spraying device (4) comprises a spraying pipe positioned above the heat exchange pipe (3), and the spraying pipe is provided with a plurality of anti-blocking solid conical nozzles with nozzles facing the heat exchange pipe (3) below the spraying pipe.
7. The high-salt high-organic wastewater treatment evaporation tower of any one of claims 1 to 3, wherein the heat exchange pipe (3) is an internally threaded titanium pipe.
8. The method for treating the wastewater of the high-salinity high-organic wastewater treatment evaporation tower as claimed in claims 1 to 7, is characterized by comprising the following steps:
s1, introducing dry air in a normal pressure state into the air inlet pipe;
s2, introducing high-pressure medium-temperature gaseous refrigerants to the uppermost heat exchange tube (3);
and S3, introducing the wastewater into the spray pipe.
9. The method for treating high-salinity high-organic-matter wastewater according to claim 8, wherein the temperature of the drying air in S1 is 40 ℃ to 50 ℃.
10. The method for treating high-salinity high-organic-matter wastewater according to claim 8, wherein in S2, the condensation temperature of the gaseous refrigerant is 55-62 ℃; preferably, in S3, the temperature of the wastewater is above 40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685614.3A CN112047408A (en) | 2020-07-16 | 2020-07-16 | High-salt high-organic-matter wastewater treatment evaporation tower and treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010685614.3A CN112047408A (en) | 2020-07-16 | 2020-07-16 | High-salt high-organic-matter wastewater treatment evaporation tower and treatment method thereof |
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| CN112047408A true CN112047408A (en) | 2020-12-08 |
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| CN202010685614.3A Pending CN112047408A (en) | 2020-07-16 | 2020-07-16 | High-salt high-organic-matter wastewater treatment evaporation tower and treatment method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999864A (en) * | 2023-08-02 | 2023-11-07 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
Citations (7)
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|---|---|---|---|---|
| CN103553166A (en) * | 2013-11-14 | 2014-02-05 | 天津辰创环境工程科技有限责任公司 | Device and method of treating wastewater with high salt content by utilizing waste heat of circulating water |
| CN104030379A (en) * | 2014-05-29 | 2014-09-10 | 国家海洋局天津海水淡化与综合利用研究所 | Evaporator for treating oily sewage |
| CN105366867A (en) * | 2015-12-11 | 2016-03-02 | 上海朴是环境科技有限公司 | Single-effect multi-chamber mechanical compression evaporation device for processing high-salinity/high-organic-substance-content wastewater and method thereof |
| CN208603941U (en) * | 2018-07-10 | 2019-03-15 | 新疆中泰新鑫化工科技股份有限公司 | High-salt wastewater low-temperature evaporation device |
| CN109502671A (en) * | 2018-11-08 | 2019-03-22 | 上海发电设备成套设计研究院有限责任公司 | A kind of Waste water concentrating decrement treatment system |
| CN209005236U (en) * | 2018-10-12 | 2019-06-21 | 汕头轻工机械厂有限公司 | Vertical three groups of horizontal tubes group falling liquid film mechanical steam recompression evaporator |
| CN110844955A (en) * | 2019-12-11 | 2020-02-28 | 安徽同速环保科技有限公司 | Closed circulation evaporation and condensation system for treating high-salt and high-COD wastewater |
-
2020
- 2020-07-16 CN CN202010685614.3A patent/CN112047408A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553166A (en) * | 2013-11-14 | 2014-02-05 | 天津辰创环境工程科技有限责任公司 | Device and method of treating wastewater with high salt content by utilizing waste heat of circulating water |
| CN104030379A (en) * | 2014-05-29 | 2014-09-10 | 国家海洋局天津海水淡化与综合利用研究所 | Evaporator for treating oily sewage |
| CN105366867A (en) * | 2015-12-11 | 2016-03-02 | 上海朴是环境科技有限公司 | Single-effect multi-chamber mechanical compression evaporation device for processing high-salinity/high-organic-substance-content wastewater and method thereof |
| CN208603941U (en) * | 2018-07-10 | 2019-03-15 | 新疆中泰新鑫化工科技股份有限公司 | High-salt wastewater low-temperature evaporation device |
| CN209005236U (en) * | 2018-10-12 | 2019-06-21 | 汕头轻工机械厂有限公司 | Vertical three groups of horizontal tubes group falling liquid film mechanical steam recompression evaporator |
| CN109502671A (en) * | 2018-11-08 | 2019-03-22 | 上海发电设备成套设计研究院有限责任公司 | A kind of Waste water concentrating decrement treatment system |
| CN110844955A (en) * | 2019-12-11 | 2020-02-28 | 安徽同速环保科技有限公司 | Closed circulation evaporation and condensation system for treating high-salt and high-COD wastewater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999864A (en) * | 2023-08-02 | 2023-11-07 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
| CN116999864B (en) * | 2023-08-02 | 2024-04-12 | 安徽同速科技有限公司 | High-salt organic wastewater treatment evaporation tower and foam catcher thereof |
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Address after: Room 902-905, building F3, phase II, innovation industrial park, 2800 innovation Avenue, high tech Zone, Hefei, Anhui 230000 Applicant after: Anhui Tongsu Technology Co.,Ltd. Address before: Room 902-905, building F3, phase II, innovation industrial park, 2800 innovation Avenue, high tech Zone, Hefei, Anhui 230000 Applicant before: Anhui Tongsu Environmental Protection Technology Co.,Ltd. |
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Application publication date: 20201208 |