CN217498966U - Low-energy-consumption treatment system for pretreatment wastewater during coating - Google Patents
Low-energy-consumption treatment system for pretreatment wastewater during coating Download PDFInfo
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- CN217498966U CN217498966U CN202221535483.1U CN202221535483U CN217498966U CN 217498966 U CN217498966 U CN 217498966U CN 202221535483 U CN202221535483 U CN 202221535483U CN 217498966 U CN217498966 U CN 217498966U
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Abstract
The utility model discloses a processing system of low energy consumption application pretreatment waste water, include: the device comprises an ultrafiltration unit, a reverse osmosis unit, a neutralization module, a primary concentrated water tank, a liquid medicine tank, an evaporation module, a defoaming tank and a pickling tank, wherein the ultrafiltration unit and the reverse osmosis unit are connected with the primary concentrated water tank; the neutralization module is connected with the evaporation module, and degreasing fluid and/or pickling fluid are/is arranged in the liquid medicine box. The utility model forms the first pure liquid and the second pure liquid with different conductivity by carrying out two-stage treatment operation on the pretreatment wastewater, and the formed first pure liquid and the second pure liquid can be directly used back to the production line, thereby achieving the purpose of zero wastewater discharge; the anti-pollution ultrafiltration membrane is adopted in the ultrafiltration unit, and the precipitation system in the prior art can be replaced, so that the use amount of the medicament in the pretreatment wastewater treatment process is reduced, the input cost in the wastewater treatment process is reduced, the wastewater treatment process is simplified, and the workload of workers is reduced.
Description
Technical Field
The utility model relates to a waste water treatment system field especially relates to a processing system of low energy consumption before application processing waste water.
Background
In the prior art, a treatment system for treating wastewater before coating has the following problems: 1. fluoride, SS and the like in the wastewater need to be removed through secondary to tertiary reaction precipitation, and a large amount of medicaments need to be added in the process to achieve the optimal precipitation effect, so that the operation is complex and the labor intensity of workers is high; 2. generally, zero discharge of waste water is realized by evaporation, and the energy consumption in the evaporation process is high, so that the production cost is high.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides a low-energy consumption treatment system for pre-coating treatment wastewater, and solves the problems that in the prior art, the pre-coating treatment wastewater is treated by adopting two-level to three-level reaction precipitation, a large amount of medicines are required to be added, the cost is high, the operation process is complicated, and time and labor are wasted; and simultaneously, the problem of high energy consumption in waste water evaporation is solved.
The technical scheme of the utility model as follows: a low energy consumption treatment system of treatment waste water before painting includes: the device comprises an ultrafiltration unit, a reverse osmosis unit connected with the ultrafiltration unit, a neutralization module, a primary concentrated water tank and a liquid medicine tank connected with the neutralization module, an evaporation module, a defoaming tank and a pickling tank communicated with the evaporation module, wherein the ultrafiltration unit and the reverse osmosis unit are both connected with the primary concentrated water tank; the neutralization module is connected with the evaporation module, and degreasing fluid and/or pickling fluid are/is arranged in the liquid medicine box; an ultrafiltration membrane is arranged in the ultrafiltration unit, the ultrafiltration unit is used for being connected with a water pipe into which pretreatment wastewater is introduced, filtering the pretreatment wastewater introduced into the ultrafiltration unit, delivering ultrafiltrate generated after passing through the ultrafiltration membrane to the reverse osmosis unit, and delivering first concentrated water which is formed after being filtered and does not pass through the ultrafiltration membrane part into the primary concentrated water tank; a reverse osmosis membrane is arranged in the reverse osmosis unit, and the liquid outlet end of the reverse osmosis unit is connected with an external production line water pipe; the reverse osmosis unit is used for performing reverse osmosis operation on the ultrafiltrate conveyed by the ultrafiltration unit and conveying a first pure liquid generated after the ultrafiltrate passes through the reverse osmosis membrane into an external production line water pipe; the reverse osmosis unit is also used for conveying second concentrated water which is formed after reverse osmosis is carried out on the reverse osmosis membrane and does not pass through the reverse osmosis membrane into the primary concentrated water tank; the neutralization module is used for introducing the primary concentrated water tank and the liquid medicine tank into liquid in the neutralization module for neutralization operation to form neutralized liquid, and introducing the neutralized liquid into the evaporation module; the pH value of the neutralization solution is 7; the evaporation module is connected with a vacuum pump, and the vacuum pump is used for vacuumizing the inside of the evaporation module to-90 kpa-100 kpa; the defoaming box is used for introducing a defoaming agent into the evaporation module, and the pickling box is used for introducing a pickling agent into the evaporation module; the evaporation module is used for evaporating the neutralization liquid in the evaporation module under the pressure of-90 kpa to-100 kpa, and condensing the steam generated by evaporation to form second pure liquid.
Further, the ultrafiltration unit comprises: the device comprises a first water pump and two ultrafilters connected with the first water pump, wherein ultrafiltration membranes are arranged in the two ultrafilters; the primary concentrated water tank is connected with a concentrated water pipe, and the two ultrafilters are connected with the concentrated water pipe.
Further, the ultrafiltration unit comprises: the water purifier comprises a reverse osmosis water tank, two reverse osmosis devices and a second water pump, wherein the reverse osmosis water tank is connected with the ultrafilter, the two reverse osmosis devices are connected with the reverse osmosis water tank, the second water pump is arranged between the reverse osmosis water tank and the reverse osmosis devices, the two reverse osmosis devices are internally provided with reverse osmosis membranes, and the two reverse osmosis devices are connected with a concentrated water pipe.
Further, a first filter is arranged between the concentrate pipe and the primary concentrate tank.
Further, one side of the liquid medicine box is connected with a second filter.
Further, the neutralization module includes: a neutralization tank, a neutralizer tank for adding a neutralizer to the neutralization tank; the primary concentrated water tank and the liquid medicine tank are both connected with the neutralizing tank.
Further, the evaporation module includes: the device comprises an evaporation chamber, a condenser and a super concentrated water tank which are connected with the evaporation chamber, a distilled water tank which is connected with the condenser, and an activated carbon filter which is used for adsorbing and filtering liquid in the distilled water tank.
Further, the evaporation chamber is connected with the neutralization tank, and is used for evaporating the neutralization solution in the evaporation chamber under the pressure of-90 kpa to-100 kpa, and introducing the steam generated after evaporation into the condenser for condensation; the neutralization solution is evaporated by the evaporation chamber to form super-concentrated water solution, and the evaporation chamber is also used for conveying the super-concentrated water solution into the super-concentrated water tank.
By adopting the scheme, the utility model provides a processing system of processing waste water before low energy consumption application has following beneficial effect:
1. performing two-stage treatment operation to form a first pure liquid and a second pure liquid with different electric conductivities, wherein the formed first pure liquid and the second pure liquid can be directly returned to a production line, so that the aim of zero wastewater discharge is fulfilled, and the purity of the treated first pure liquid and the treated second pure liquid is high;
2. an anti-pollution ultrafiltration membrane is adopted to replace a precipitation system in the prior art, so that the use amount of a medicament during pretreatment of wastewater can be reduced, the input cost in the wastewater treatment process is reduced, the wastewater treatment process is simplified, and the workload of workers is reduced;
3. the evaporation module is pumped to-90 kpa-/-100 kpa through the vacuum pump, so that the vacuum pumping low-temperature evaporation technology is realized, the evaporation effect is good, the vacuum pump connected with the evaporation module adopts a heat pump compressor, the generated heat is used for the evaporation operation of the evaporation module, and the generated cold energy is used as a cold source for the condensation operation of the condenser, so that the energy efficiency ratio of the utility model can reach more than 1:4, the energy efficiency ratio is high, and the practicability is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an ultrafiltration unit and a reverse osmosis unit of the present invention;
FIG. 3 is a schematic structural view of the primary concentrated water tank, the liquid medicine tank and the neutralization module of the present invention;
fig. 4 is a schematic structural diagram of the evaporation module, the defoaming box and the pickling box of the present invention.
Wherein: the system comprises an ultrafiltration unit 1, a first water pump 10, an ultrafilter 11, a reverse osmosis unit 2, a reverse osmosis water tank 20, a reverse osmosis device 21, a second water pump 22, a neutralization module 3, a neutralization tank 30, a neutralization agent tank 31, a primary concentrated water tank 4, a concentrated water pipe 40, a first filter 41, a liquid medicine tank 5, a second filter 50, an evaporation module 6, an evaporation chamber 60, a condenser 61, a super concentrated water tank 62, a distillation water tank 63, an activated carbon filter 64, a defoaming tank 7, a pickling tank 8 and a vacuum pump 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, the present invention provides a low energy consumption treatment system for treating wastewater before coating, comprising: the device comprises an ultrafiltration unit 1, a reverse osmosis unit 2 connected with the ultrafiltration unit 1, a neutralization module 3, a primary concentrated water tank 4 and a liquid medicine tank 5 connected with the neutralization module 3, an evaporation module 6, a defoaming tank 7 communicated with the evaporation module 6 and a pickling tank 8, wherein the ultrafiltration unit 1 and the reverse osmosis unit 2 are both connected with the primary concentrated water tank 4; the ultrafiltration unit 1 is connected with the reverse osmosis unit 2 and the primary concentrated water tank 4 through pipelines, and the reverse osmosis unit 2 is connected with the primary concentrated water tank 4 through a pipeline; the primary concentrated water tank 4 and the liquid medicine tank 5 are connected with the neutralization module 3 through pipelines, and the neutralization module 3, the defoaming tank 7 and the pickling tank 8 are connected with the evaporation module 6 through pipelines; in addition, when needing to be explained, control components such as valves, switches and the like are arranged on pipelines connected among the modules; the liquid medicine box 5 is connected with a box body which is used for containing degreasing fluid and pickling fluid formed after the plates are washed on the production line.
Specifically, in this embodiment, the neutralization module 3 is connected to the evaporation module 6, and a degreasing solution and/or a pickling solution is disposed in the chemical solution tank 5; an ultrafiltration membrane is arranged in the ultrafiltration unit 1, the ultrafiltration unit 1 is used for being connected with a water pipe for introducing pretreatment wastewater, filtering the pretreatment wastewater introduced into the ultrafiltration unit 1, conveying ultrafiltrate generated after passing through the ultrafiltration membrane to the reverse osmosis unit 2, and conveying first concentrated water formed by filtering the part which does not pass through the ultrafiltration membrane into the primary concentrated water tank 4; a reverse osmosis membrane is arranged in the reverse osmosis unit 2, and the liquid outlet end of the reverse osmosis unit 2 is connected with an external production line water pipe; the reverse osmosis unit 2 is used for performing reverse osmosis operation on the ultrafiltrate conveyed by the ultrafiltration unit 1 and conveying a first pure liquid generated after the ultrafiltrate passes through the reverse osmosis membrane to an external production line water pipe; the reverse osmosis unit 2 is also used for conveying second concentrated water which is formed after reverse osmosis is carried out on the reverse osmosis membrane and does not pass through the reverse osmosis membrane into the primary concentrated water tank 4; the neutralization module 3 is used for introducing the primary concentrated water tank 4 and the liquid medicine tank 5 into the liquid in the neutralization module 3 for neutralization operation to form neutralized liquid, and introducing the neutralized liquid into the evaporation module 6; the PH value of the neutralization solution is 7; the evaporation module 6 is connected with a vacuum pump 9, and the vacuum pump 9 is used for vacuumizing the evaporation module 6 and enabling the pressure in the evaporation chamber 60 to be-90 kpa-100 kpa; the defoaming box 7 is used for introducing a defoaming agent into the evaporation module 6, and the pickling box 8 is used for introducing a pickling agent into the evaporation module 6; the evaporation module 6 is used for evaporating the neutralization liquid in the evaporation module under the pressure of-90 kpa to-100 kpa, and condensing the steam generated by evaporation to form second pure liquid; specifically, in the present embodiment, the inside of the evaporation chamber 60 is evacuated to-96 kpa by the vacuum pump 9, and the evaporation temperature is controlled at 37 ℃, and the vacuum pump is a heat pump compressor. The utility model provides a processing system's of low energy consumption before application pretreatment waste water effect process does: introducing the coated pretreatment wastewater into an ultrafiltration unit 1, intercepting large-size substances such as colloids, particles and organic macromolecules in the pretreatment wastewater under the action of an ultrafiltration membrane in the ultrafiltration unit 1, enabling ultrafiltrate formed after the ultrafiltration membrane to contain no large-size substances such as colloids, particles and organic macromolecules, increasing the content of the large-size substances such as colloids, particles and organic macromolecules in liquid which does not pass through the ultrafiltration membrane to form first concentrated water, conveying the first concentrated water into a primary concentrated water tank 4 for further treatment, conveying the ultrafiltrate to a reverse osmosis unit 2, performing reverse osmosis operation through a reverse osmosis membrane in the reverse osmosis unit 2, and accordingly intercepting impurities such as dissolved salts, colloids, bacteria, viruses and most organic matters in the ultrafiltrate into the original ultrafiltrate, and enabling the liquid passing through the reverse osmosis membrane to form first pure liquid, the first pure liquid is pure water with the conductivity of less than 10 mu m/cm, can be directly led into a water pipe of a production line and is used for operations such as water washing on the production line, and the like, after being treated by an ultrafiltration unit 1 and a reverse osmosis unit 2, the water yield of the first pure liquid reaches 80 percent, the water yield is high, and the rest 20 percent (the total amount of the first concentrated water and the second concentrated water) can enter a primary concentrated water tank 4; the liquid which does not pass through the reverse osmosis membrane forms second concentrated water, the second concentrated water is also conveyed to the primary concentrated water tank 4, the first concentrated water and the second concentrated water are mixed in the primary concentrated water tank 4 and then further conveyed to the neutralization module 3, part of the liquid in the liquid medicine tank 5 (degreasing liquid and pickling liquid formed after washing plates) is also introduced into the neutralization module 3, the two different liquids are subjected to acid-base neutralization reaction, acid or base is correspondingly added into the neutralization module 3 according to the pH value after the two liquids are mixed in the process to ensure that neutralization liquid with the pH value of 7 is formed, the neutralization liquid is conveyed into the evaporation module 6 after the neutralization is completed, evaporation operation is carried out under the condition that the pressure is-96 kpa, the pure water part is evaporated to form water vapor, the second pure water is finally formed through condensation operation, and the part which is not evaporated is entrusted to other treatment mechanisms for treatment, the amount of the part is not more than 0.5% of the amount of the pretreatment wastewater at the time of the initial treatment, and is small; after evaporation and condensation, the formed second pure liquid is pure water with the conductivity of less than 15 mu m/cm, and can also be directly led into a water pipe of the production line for water washing and other operations on the production line to finish the treatment of the pretreatment wastewater. Therefore, from the above, the treatment system for the low-energy-consumption pretreatment wastewater for coating in the utility model performs two-stage treatment operation when treating the pretreatment wastewater for coating, and can achieve the purpose of zero wastewater discharge, and the first and second purified liquids after treatment have high purity and strong practicability; meanwhile, the utility model uses the anti-pollution ultrafiltration membrane to replace a precipitation system in the prior art, so that the usage amount of medicaments for treating the pretreatment wastewater can be reduced, the input cost in the wastewater treatment process can be reduced, the wastewater treatment process can be simplified, and the workload of workers can be reduced; in addition, the evaporation module 6 is pumped to-90 kpa to-100 kpa through a vacuum pump 9, so that the vacuum-pumping low-temperature evaporation technology is realized, and the evaporation effect is good.
Specifically, in this embodiment, the ultrafiltration unit 1 includes: the device comprises a first water pump 10 and two ultrafilters 11 connected with the first water pump 10, wherein ultrafiltration membranes are arranged in the two ultrafilters 11; the primary concentrated water tank 4 is connected with a concentrated water pipe 40, and the two ultrafilters 11 are both connected with the concentrated water pipe 40. The pretreatment wastewater in the water pipe of the pretreatment wastewater is pumped into the two ultrafilters 11 through the first water pump 10, when the ultrafiltration operation is carried out, the pressure in the ultrafilters 11 is 0.3MPa, and under the pressure, large-size substances such as colloids, particles, organic macromolecules and the like are intercepted, so that the ultrafiltration operation is realized. Furthermore, it should be noted that, in the prior art, the ultrafilter 11 of the function of the ultrafilter 11 of the present invention can be applied to the present invention to realize the function thereof.
Specifically, in this embodiment, the ultrafiltration unit 1 includes: a reverse osmosis water tank 20 connected with the ultrafilter 11, two reverse osmosis devices 21 connected with the reverse osmosis water tank 20, and a second water pump 22 arranged between the reverse osmosis water tank 20 and the reverse osmosis devices 21, wherein reverse osmosis membranes are arranged in the two reverse osmosis devices 21, and the two reverse osmosis devices 21 are connected with the concentrated water pipe 40; the reverse osmosis water tank 20 is used for containing ultrafiltrate; when the second water pump 22 is used for pumping the ultrafiltrate, the ultrafiltrate is pumped into the two reverse osmosis devices 21 under the pressure of 1.0MPa for reverse osmosis operation; it should be noted that the reverse osmosis unit 21 which can realize the function of the reverse osmosis unit 21 of the present invention in the prior art can be applied to the present invention to realize the function thereof.
Specifically, in the present embodiment, a first filter 41 is provided between the concentrate pipe 40 and the primary concentrate tank 4. The concentrated water pipe 40 is connected with the primary concentrated water tank 4, and after the first concentrated water and the second concentrated water enter the concentrated water pipe 40, the first filter 41 is used for filtering, so that large particulate matters are removed, and the filtered concentrated water can be conveyed into the primary concentrated water tank 4.
Specifically, in the present embodiment, a second filter 50 is connected to one side of the liquid medicine tank 5. The chemical liquid box 5 is connected with the box body which holds the degreasing liquid and the pickling liquid formed after the water washing plate on the production line, therefore, the degreasing liquid and the pickling liquid which are generated after the water washing plate need to be filtered by the second filter 50 before entering the chemical liquid box 5, so as to remove large granular substances in the liquid.
Specifically, in this embodiment, the neutralization module 3 includes: a neutralization tank 30, a neutralizer tank 31 for adding a neutralizer to the neutralization tank 30; the primary concentrated water tank 4 and the liquid medicine tank 5 are both connected with the neutralization tank 30. The neutralizer tank 31 may be divided into two parts, one part for adding an acid (e.g., HCl solution) to the neutralizer tank 30 and the other part for adding a base (e.g., NaOH solution) to the neutralizer tank 30; the neutralization tank 30 is also provided with a device for detecting the pH value of the liquid therein, which can be selected according to actual requirements.
Specifically, in the present embodiment, the evaporation module 6 includes: the device comprises an evaporation chamber 60, a condenser 61 and a super concentrated water tank 62 which are connected with the evaporation chamber 60, a distilled water tank 63 which is connected with the condenser 61, and an activated carbon filter 64 which is used for adsorbing and filtering liquid in the distilled water tank 63, wherein the liquid inlet end of the activated carbon filter is connected with the distilled water tank 63, and the liquid outlet end of the activated carbon filter is also connected with the distilled water tank 63 to form a circulating filtering structure; the evaporation chamber 60 is connected with the neutralization tank 30, the evaporation chamber 60 is used for evaporating the neutralized liquid in the evaporation chamber under the pressure of-90 kpa to-100 kpa, and introducing the steam generated after evaporation into the condenser 61 for condensation; the neutralized liquid is evaporated by the evaporation chamber 60 to form a super concentrated liquid, the evaporation chamber 60 is further used for conveying the super concentrated liquid into the super concentrated water tank 62, and the liquid in the super concentrated water tank 62 is finally entrusted to other processing mechanisms for processing. It should be noted that the vacuum pump 9 is a heat pump compressor, the heat generated by the vacuum pump is used for the evaporation operation of the evaporation module 6, and the cold source of the condenser 61 during the condensation operation of the steam is the cold energy generated by decompressing the refrigerant by the heat pump compressor, therefore, the energy efficiency ratio of the utility model can reach more than 1:4, the energy efficiency ratio is high, and the practicability is strong.
To sum up, the utility model provides a processing system of low energy consumption application pretreatment waste water has following beneficial effect:
1. performing two-stage treatment operation to form a first pure liquid and a second pure liquid with different electric conductivities, wherein the formed first pure liquid and the second pure liquid can be directly returned to a production line, so that the aim of zero wastewater discharge is fulfilled, and the purity of the treated first pure liquid and the treated second pure liquid is high;
2. an anti-pollution ultrafiltration membrane is adopted to replace a precipitation system in the prior art, so that the use amount of a medicament during pretreatment of wastewater can be reduced, the input cost in the wastewater treatment process is reduced, the wastewater treatment process is simplified, and the workload of workers is reduced;
3. the evaporation module is pumped to-90 kpa-100 kpa through the vacuum pump, the low-temperature evaporation technology of vacuum pumping is realized, the evaporation effect is good, the vacuum pump connected with the evaporation module adopts a heat pump compressor, the heat generated by the heat pump compressor is used for evaporation operation of the evaporation module, and the cold energy generated by the heat pump compressor is used for a cold source for condensation operation of a condenser, so that the energy efficiency ratio of the utility model can reach more than 1:4, the energy efficiency ratio is high, and the practicability is strong.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A treatment system of low energy consumption treatment before painting waste water, characterized by includes: the device comprises an ultrafiltration unit, a reverse osmosis unit connected with the ultrafiltration unit, a neutralization module, a primary concentrated water tank and a liquid medicine tank connected with the neutralization module, an evaporation module, a defoaming tank and a pickling tank communicated with the evaporation module, wherein the ultrafiltration unit and the reverse osmosis unit are both connected with the primary concentrated water tank; the neutralization module is connected with the evaporation module, and degreasing fluid and/or pickling fluid are/is arranged in the liquid medicine box;
an ultrafiltration membrane is arranged in the ultrafiltration unit, the ultrafiltration unit is used for being connected with a water pipe into which pretreatment wastewater is introduced, filtering the pretreatment wastewater introduced into the ultrafiltration unit, delivering ultrafiltrate generated after passing through the ultrafiltration membrane to the reverse osmosis unit, and delivering first concentrated water which is formed after being filtered and does not pass through the ultrafiltration membrane part into the primary concentrated water tank;
a reverse osmosis membrane is arranged in the reverse osmosis unit, and the liquid outlet end of the reverse osmosis unit is connected with an external production line water pipe; the reverse osmosis unit is used for performing reverse osmosis operation on the ultrafiltrate conveyed by the ultrafiltration unit and conveying a first pure liquid generated after the ultrafiltrate passes through the reverse osmosis membrane into an external production line water pipe; the reverse osmosis unit is also used for conveying second concentrated water which is formed after reverse osmosis is carried out on the reverse osmosis membrane and does not pass through the reverse osmosis membrane into the primary concentrated water tank;
the neutralization module is used for introducing the primary concentrated water tank and the liquid medicine tank into liquid in the neutralization module for neutralization operation to form neutralized liquid, and introducing the neutralized liquid into the evaporation module; the pH value of the neutralization solution is 7;
the evaporation module is connected with a vacuum pump, and the vacuum pump is used for vacuumizing the inside of the evaporation module to-90 kpa-100 kpa; the defoaming box is used for introducing a defoaming agent into the evaporation module, and the pickling box is used for introducing a pickling agent into the evaporation module; the evaporation module is used for evaporating the neutralization liquid in the evaporation module under the pressure of-90 kpa to-100 kpa, and condensing the steam generated by evaporation to form second pure liquid.
2. The low-energy-consumption treatment system for pretreatment before painting of wastewater according to claim 1, wherein the ultrafiltration unit comprises: the device comprises a first water pump and two ultrafilters connected with the first water pump, wherein ultrafiltration membranes are arranged in the two ultrafilters; the primary concentrated water tank is connected with a concentrated water pipe, and the two ultrafilters are connected with the concentrated water pipe.
3. The low-energy-consumption treatment system for pretreatment before painting of wastewater according to claim 2, wherein the ultrafiltration unit comprises: the water purifier comprises a reverse osmosis water tank, two reverse osmosis devices and a second water pump, wherein the reverse osmosis water tank is connected with the ultrafilter, the two reverse osmosis devices are connected with the reverse osmosis water tank, the second water pump is arranged between the reverse osmosis water tank and the reverse osmosis devices, the two reverse osmosis devices are internally provided with reverse osmosis membranes, and the two reverse osmosis devices are connected with a concentrated water pipe.
4. The low energy consumption treatment system for pretreatment before painting of wastewater according to claim 3, wherein a first filter is provided between the concentrate pipe and the primary concentrate tank.
5. The system for treating the wastewater before coating with low energy consumption according to claim 1, wherein a second filter is connected to one side of the liquid medicine tank.
6. The low energy consumption pretreatment before painting wastewater treatment system according to claim 1, wherein the neutralization module comprises: a neutralization tank, a neutralizer tank for adding a neutralizer to the neutralization tank; the primary concentrated water tank and the liquid medicine tank are both connected with the neutralizing tank.
7. The low energy consumption treatment system for pretreatment before painting of wastewater according to claim 6, wherein the evaporation module comprises: the device comprises an evaporation chamber, a condenser and a super concentrated water tank which are connected with the evaporation chamber, a distilled water tank which is connected with the condenser, and an activated carbon filter which is used for adsorbing and filtering liquid in the distilled water tank.
8. The system for treating the low-energy-consumption pretreatment before painting wastewater as recited in claim 7, wherein the evaporation chamber is connected with the neutralization tank, and is used for evaporating the neutralization solution in the evaporation chamber under the pressure of-90 kpa to-100 kpa, and introducing steam generated after evaporation into the condenser for condensation; the neutralization solution is evaporated by the evaporation chamber to form super-concentrated water solution, and the evaporation chamber is also used for conveying the super-concentrated water solution into the super-concentrated water tank.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490366A (en) * | 2022-10-08 | 2022-12-20 | 惠州市成泰环保智能科技有限公司 | Low-emission recycling process for PCB (printed Circuit Board) production water |
| CN115490366B (en) * | 2022-10-08 | 2024-04-26 | 惠州市成泰环保智能科技有限公司 | Low-emission recycling process for PCB (printed circuit board) production water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490366A (en) * | 2022-10-08 | 2022-12-20 | 惠州市成泰环保智能科技有限公司 | Low-emission recycling process for PCB (printed Circuit Board) production water |
| CN115490366B (en) * | 2022-10-08 | 2024-04-26 | 惠州市成泰环保智能科技有限公司 | Low-emission recycling process for PCB (printed circuit board) production water |
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