CN216687795U - Degreasing wastewater treatment system - Google Patents
Degreasing wastewater treatment system Download PDFInfo
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- CN216687795U CN216687795U CN202123297651.6U CN202123297651U CN216687795U CN 216687795 U CN216687795 U CN 216687795U CN 202123297651 U CN202123297651 U CN 202123297651U CN 216687795 U CN216687795 U CN 216687795U
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model relates to a degreasing wastewater treatment system, which is used for an aluminum workpiece production line and sequentially comprises an adjusting unit, a lifting pump, a demulsification reaction unit, an evaporation raw water storage unit, a water pump, a low-temperature evaporation unit, a clear water collection unit and a concentrated solution collection unit, and further comprises a control unit for controlling the adjusting unit, the lifting pump, the demulsification reaction unit, the evaporation raw water storage unit, the water pump and the low-temperature evaporation unit, wherein the adjusting unit is connected with a water outlet of a cleaning process of the aluminum workpiece production line, and the clear water collection unit is connected with a water inlet of a cleaning process of the aluminum workpiece production line. After the system is applied to treat degreasing wastewater discharged by an aluminum workpiece production line, the COD (chemical oxygen demand) of the discharged water can stably reach a very low standard, and clear water can be recycled, so that resources are saved.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a degreasing wastewater treatment system.
Background
In the process of processing and cleaning the aluminum workpiece, water-based cleaning agent, water-based black removing agent and the like are usually used for degreasing treatment, degreasing wastewater is generated in the degreasing process, the degreasing wastewater contains grease with certain concentration, suspended matters and surfactant, the water quality is alkaline, and the COD can reach 60000-100000 mg/L.
The degreasing wastewater process in the engineering case generally adopts acid-dilute demulsification, Fenton advanced oxidation and biochemical treatment; since the wastewater is alkaline, a large amount of acid needs to be added to dilute the acid, so that the pH is adjusted to 2-3, and multi-stage pH adjustment is needed. Due to the introduction of ferrous sulfate, Fenton advanced oxidation can generate a large amount of iron mud, excessive hydrogen peroxide can be added, and even if excessive hydrogen peroxide is added after the COD removal rate reaches a certain effect, a better effect cannot be achieved.
Because the cleaning agent contains macromolecular substances such as fatty alcohol and the like, the cleaning agent needs to be firstly subjected to hydrolytic acidification treatment, and the aerobic biochemical treatment can be carried out only after the macromolecular substances are hydrolyzed into small molecules, and the cleaning agent has low biodegradability, needs longer retention time, increases investment and occupied area, and is not suitable for reaching the standard.
Therefore, the degreasing wastewater treatment system which is environment-friendly, low in cost, strong in operability and capable of stably achieving the effluent COD standard is urgently needed to be found.
Disclosure of Invention
The technical problem that this application will solve is: the method is environment-friendly, low in cost and efficient in treating degreasing wastewater in the process of processing and cleaning aluminum workpieces.
In order to achieve the above object, the present application is achieved by the following technical solutions.
The application provides a degreasing wastewater treatment system for aluminium system work piece production line includes regulating unit, elevator pump, breakdown of emulsion reaction unit, evaporation raw water storage unit, water pump, low temperature evaporation unit, clear water collection unit, dense liquid collection unit in proper order, still including being used for control the regulating unit the elevator pump breakdown of emulsion reaction unit evaporation raw water storage unit the water pump with the control unit of low temperature evaporation unit, regulating unit connects aluminium system work piece production line cleaning process delivery port, the clear water is collected the unit and is connected aluminium system work piece production line cleaning process water inlet.
As a further improvement of the application, the cleaning procedure water outlet of the aluminum workpiece production line is connected with a first cleaning procedure water outlet, a second cleaning procedure water outlet and a third cleaning procedure water outlet of the aluminum workpiece production line; the water inlet of the cleaning process of the aluminum workpiece production line is connected with the water inlet of the first cleaning process, the water inlet of the second cleaning process and the water inlet of the third cleaning process of the aluminum workpiece production line.
As a further improvement of this application, the regulating unit includes first equalizing basin and agitating unit be equipped with agitating unit on the first equalizing basin, agitating unit is used for making degrease waste water stirring in the equalizing basin is even.
As a further improvement of this application, the regulating unit still includes the second equalizing basin, the second equalizing basin is located behind the first equalizing basin be equipped with filter equipment in the second equalizing basin, filter equipment is used for filtering the large granule impurity in the degrease waste water.
As a further improvement of the application, the demulsification reaction unit is also connected with the concentrated solution collecting unit, and the concentrated solution collecting unit is used for collecting floating oil residues in the demulsification reaction tank.
As a further improvement of the application, the low-temperature evaporation unit comprises a low-temperature evaporation device and a cleaning device, and the cleaning device is connected with the low-temperature evaporation device and used for cleaning the low-temperature evaporation device.
As a further improvement of the application, a dosing device is further arranged on the cleaning device and used for dosing the agent for cleaning the low-temperature evaporation device.
As a further improvement of the present application, the low-temperature evaporation device comprises an evaporation tank, the evaporation tank is sequentially connected with a compressor, a heat exchanger, an expansion valve and a condenser, and the condenser is connected to the bottom of the evaporation tank.
As a further improvement of the application, the evaporating pot is also connected with the concentrated solution collecting unit through a pneumatic valve.
As a further improvement of the application, the upper part in the evaporating tank body is provided with a liquid level sensor, a defoaming sensor and a vacuum sensor.
The beneficial effects of this application lie in that, a degreasing wastewater treatment system is provided for aluminium system work piece production line includes regulating unit, elevator pump, breakdown of emulsion reaction unit, evaporation raw water storage unit, water pump, low temperature evaporation unit, clear water collection unit, concentrate collection unit in proper order, still including being used for control the regulating unit the elevator pump breakdown of emulsion reaction unit evaporation raw water storage unit the water pump with the control unit of low temperature evaporation unit, the regulating unit is connected aluminium system work piece production line and is washd the process delivery port, the clear water is collected the unit and is connected aluminium system work piece production line and wash the process water inlet. After the system is applied to treat degreasing wastewater discharged by an aluminum workpiece production line, the COD (chemical oxygen demand) of the discharged water can stably reach a very low standard, and clear water can be recycled, so that resources are saved.
Drawings
FIG. 1 is a schematic structural diagram of a degreasing wastewater treatment system applied to an aluminum workpiece production line;
fig. 2 is a schematic structural view of the low-temperature evaporation apparatus of the present application.
In the figure: 1. a compressor; 2. a heat exchanger; 3. an expansion valve; 4. a condenser; 5. a centrifugal pump; 6. a pneumatic valve; 7. a pneumatic diaphragm pump; 8. a liquid level sensor; 9. a stock solution inlet; 10. a concentrated solution outlet; 11. And a water outlet of the heat exchanger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the following description of the present application will be made in detail and completely with reference to the specific embodiments and the accompanying drawings. It should be understood that the described embodiments are only a few, rather than all, examples and are not intended to limit the scope of the present disclosure. 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 application.
Referring to the degreasing wastewater treatment system schematic diagram of fig. 1, the application provides a degreasing wastewater treatment system for aluminium system work piece production line includes regulating unit, elevator pump, breakdown of emulsion reaction unit, evaporation raw water storage unit, water pump, low temperature evaporation unit, clear water collection unit, dense solution collection unit in proper order, still including being used for control the regulating unit the elevator pump breakdown of emulsion reaction unit evaporation raw water storage unit the water pump the control unit of low temperature evaporation unit, the regulating unit connects aluminium system work piece production line and washs the process delivery port, clear water collection unit connects aluminium system work piece production line and washs the process water inlet.
In this application, the regulating element is used for carrying out mixing quality of water and simple filtration preliminary treatment to degrease waste water, the elevator pump is used for passing through the degrease waste water that the regulating element was handled promotes to the breakdown of emulsion reaction unit, utilize the chemical action of demulsifier to separate oil and water in the water oil mixing liquid in the breakdown of emulsion reaction unit, make it reach the purpose of crude oil dehydration, be favorable to the subsequent processing of sewage. The evaporation raw water storage unit is used for storing the sewage treated by the demulsification reaction unit and further settling the sewage. The water pump is used for pumping the degreasing wastewater in the evaporation raw water storage unit into the low-temperature evaporation unit, the degreasing wastewater is evaporated at a lower temperature, steam is discharged, distilled water is formed through cooling and condensation and is discharged up to the standard or is recycled to the clear water collection unit, the water pump is applied to the aluminum workpiece production line again, and concentrated solution is subjected to outsourcing treatment. The concentrated solution collecting unit is used for collecting the concentrated solution treated by the low-temperature evaporation unit and the floating oil residue generated by the demulsification reaction unit.
In some embodiments, the aluminum workpiece production line cleaning process water outlet is connected with an aluminum workpiece production line first cleaning process water outlet, a second cleaning process water outlet and a third cleaning process water outlet; the water inlet of the cleaning process of the aluminum workpiece production line is connected with the water inlet of the first cleaning process, the water inlet of the second cleaning process and the water inlet of the third cleaning process of the aluminum workpiece production line. In the first cleaning step, a black removing agent is added for removing black of the aluminum workpiece, and in the second cleaning step, a cleaning agent is added mainly for cleaning.
In some embodiments, the adjusting unit comprises a first adjusting tank and a stirring device, wherein the stirring device is arranged on the first adjusting tank and is used for uniformly stirring the degreasing wastewater in the adjusting tank. In some specific embodiments, the adjusting unit further comprises a second adjusting tank, the second adjusting tank is arranged behind the first adjusting tank, and a filtering device is arranged in the second adjusting tank and used for filtering large-particle impurities in the degreasing wastewater.
In some embodiments, the demulsification reaction unit is also connected with the concentrated solution collecting unit, and the concentrated solution collecting unit is used for collecting floating oil residues in the demulsification reaction tank.
In some embodiments, the low-temperature evaporation unit comprises a low-temperature evaporation device and a cleaning device, and the cleaning device is connected with the low-temperature evaporation device and used for cleaning the low-temperature evaporation device. In some specific embodiments, a chemical feeding device is further disposed on the cleaning device, and is used for feeding a chemical to clean the low-temperature evaporation device.
In some embodiments, referring to the schematic structural diagram of fig. 2, the low-temperature evaporation device comprises an evaporation tank, the evaporation tank is sequentially connected with a compressor 1, a heat exchanger 2, an expansion valve 3 and a condenser 4, and the condenser 4 is connected to the bottom of the evaporation tank. In some specific embodiments, the evaporation tank is also connected to the concentrate collection unit by a pneumatic valve 6. The internal upper portion of evaporating pot is equipped with level sensor 8, defoaming sensor and vacuum sensor, and level sensor 8 is used for detecting the height of the internal liquid level of evaporating pot, and the defoaming sensor is arranged in detecting whether there is the bubble to rise in the low temperature evaporation plant evaporation process, and vacuum sensor is used for detecting the internal pressure of evaporating pot.
The working principle of the low-temperature evaporation device is as follows: 1) preheating, after the liquid level in a raw water bucket in an evaporation raw water storage unit reaches a middle liquid level, operating a water pump to generate vacuum, automatically feeding water into an evaporation tank through a raw liquid inlet 9, heating the degreased wastewater in the evaporation tank by heat generated by operating a compressor 1, raising the temperature of the degreased wastewater to about 30 ℃ in a vacuum state, starting to evaporate the degreased wastewater, and completing the preheating, wherein the step is completed automatically; 2) in the evaporation and concentration process, the evaporation temperature is set to be 35-40 ℃, the compressor 1 compresses the refrigerant to generate heat, the refrigerant absorbs the heat to refrigerate after being gasified by the expansion valve 3 while water is rapidly evaporated, the vapor rises and is liquefied by cold liquid and then enters the water storage tank from the water outlet 11 of the heat exchanger, the refrigerant absorbs the heat, and the refrigerant is compressed and heated by the compressor 1 to reheat the degreasing wastewater. If bubbles rise in the evaporation process, the defoaming sensor detects that the bubbles rise, the defoaming agent is automatically added for defoaming, and after one period is finished, the concentrated solution begins to be discharged (the time of one period can be set); 3) after the concentrated solution is discharged, the compressor 1 stops working after the completion of an evaporation period, the pneumatic valve 6 is opened, and the pressure is applied to the evaporation tank, so that the concentrated solution enters the concentrated solution collecting unit from the concentrated solution outlet 10.
The application also gives the technical characteristics and configuration of the low-temperature evaporation device, and refers to table 1.
TABLE 1
The low-temperature evaporation device in the application has the following advantages: 1) the evaporation temperature is about 37 ℃, the evaporation temperature is low, and scale is not easy to generate; 2) the system runs automatically and only needs to be patrolled on time; 3) remote wireless monitoring can be additionally arranged; 4) high concentration ratio; 5) the effluent is stable and has good water quality; 6) the energy only needs 380V industrial electricity, and external auxiliary systems such as a steam boiler or a condensing tower are not needed.
Although the description is given in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.
The above list of details is only for the concrete description of the feasible embodiments of the present application, they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present application are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides a degreasing wastewater treatment system for aluminium system work piece production line, its characterized in that includes regulating unit, elevator pump, breakdown of emulsion reaction unit, evaporation raw water storage unit, water pump, low temperature evaporation unit, clear water collection unit, dense liquid collection unit in proper order, still including being used for control the regulating unit the elevator pump breakdown of emulsion reaction unit evaporation raw water storage unit the water pump with the control unit of low temperature evaporation unit, the regulating unit connects aluminium system work piece production line and washs the process delivery port, the clear water is collected the unit and is connected aluminium system work piece production line and washs the process water inlet.
2. The degreasing wastewater treatment system of claim 1, wherein the aluminum workpiece production line cleaning process water outlet is connected with a first cleaning process water outlet, a second cleaning process water outlet and a third cleaning process water outlet of the aluminum workpiece production line; the water inlet of the cleaning process of the aluminum workpiece production line is connected with the water inlet of the first cleaning process, the water inlet of the second cleaning process and the water inlet of the third cleaning process of the aluminum workpiece production line.
3. The degreasing wastewater treatment system of claim 1, wherein the adjusting unit comprises a first adjusting tank and a stirring device, the first adjusting tank is provided with the stirring device, and the stirring device is used for uniformly stirring the degreasing wastewater in the adjusting tank.
4. The degreasing wastewater treatment system of claim 3, wherein the adjusting unit further comprises a second adjusting tank, the second adjusting tank is arranged behind the first adjusting tank, and a filtering device is arranged in the second adjusting tank and used for filtering large-particle impurities in the degreasing wastewater.
5. The degreasing wastewater treatment system of claim 1, wherein the demulsification reaction unit is further connected with the concentrated solution collection unit, and the concentrated solution collection unit is used for collecting floating oil residues in the demulsification reaction tank.
6. The degreasing wastewater treatment system of claim 1, wherein the low-temperature evaporation unit comprises a low-temperature evaporation device and a cleaning device, and the cleaning device is connected with the low-temperature evaporation device and used for cleaning the low-temperature evaporation device.
7. The degreasing wastewater treatment system as set forth in claim 6, wherein the cleaning device is further provided with a chemical feeding device for feeding chemicals to clean the low-temperature evaporation device.
8. The degreasing wastewater treatment system of claim 6, wherein the low-temperature evaporation device comprises an evaporation tank, the evaporation tank is sequentially connected with a compressor, a heat exchanger, an expansion valve and a condenser, and the condenser is connected to the bottom of the evaporation tank.
9. The degreasing wastewater treatment system of claim 8, wherein the evaporation tank is further connected to the concentrate collection unit through a pneumatic valve.
10. The degreasing wastewater treatment system of claim 8, wherein a liquid level sensor, a defoaming sensor and a vacuum sensor are arranged at an upper portion in the evaporation tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297651.6U CN216687795U (en) | 2021-12-24 | 2021-12-24 | Degreasing wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297651.6U CN216687795U (en) | 2021-12-24 | 2021-12-24 | Degreasing wastewater treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN216687795U true CN216687795U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123297651.6U Active CN216687795U (en) | 2021-12-24 | 2021-12-24 | Degreasing wastewater treatment system |
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| CN (1) | CN216687795U (en) |
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2021
- 2021-12-24 CN CN202123297651.6U patent/CN216687795U/en active Active
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