CN214990732U - Membrane recycling device for high-salinity wastewater in hardware electroplating industry - Google Patents
Membrane recycling device for high-salinity wastewater in hardware electroplating industry Download PDFInfo
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- CN214990732U CN214990732U CN202023255141.8U CN202023255141U CN214990732U CN 214990732 U CN214990732 U CN 214990732U CN 202023255141 U CN202023255141 U CN 202023255141U CN 214990732 U CN214990732 U CN 214990732U
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Abstract
The utility model discloses a membrane recycling device for high-salinity wastewater in the hardware electroplating industry, a high-salinity wastewater collecting barrel is connected with a raw water pump, the raw water pump is connected with a security filter, a high-pressure pump is connected behind the security filter, and a first pipeline and a second pipeline are respectively connected behind the high-pressure pump; the rear end of the first pipeline is connected with first high-pressure reverse osmosis equipment, and the rear end of the second pipeline is connected with second high-pressure reverse osmosis equipment; the concentrated water side pipeline of the first high-pressure reverse osmosis equipment is connected with a first one-way valve, the tail end of the pipeline behind the first one-way valve is connected with an electric valve and then finally flows back to the wastewater collection pool through a bag filter, and the other end of the pipeline is connected with the electric valve and then is connected with a concentrated solution committing barrel; the concentrated water side pipeline of the second high-pressure reverse osmosis equipment is connected with a second one-way valve, the tail end of the pipeline behind the second one-way valve shares a return pipe and a bag filter with the first high-pressure reverse osmosis concentrated water pipe, and finally returns to the wastewater collection pool, and the other end of the pipeline shares a drain pipe with the first high-pressure reverse osmosis concentrated water pipe and discharges into a concentrated solution outsourcing barrel.
Description
Technical Field
The utility model relates to a reuse of reclaimed water system technical field, in particular to carry out the device of retrieval and utilization to the high salt waste water of five metals electroplating industry with high-pressure reverse osmosis system.
Background
The electroplating wastewater has more than ten treatment methods due to different plating processes. With the national requirement for total amount control, more and more enterprises begin to recycle electroplating wastewater. The method with the most stable treatment effect and relatively low cost is to use a reverse osmosis system for concentration, the concentrated water is treated or removed, most of ions in the produced water are removed, and the produced water can reach the recycling standard and can be directly recycled.
However, when the electroplating wastewater, particularly the high-salt electroplating wastewater, is reused on a large scale, the membrane system is very easy to be frequently polluted and blocked due to the high heavy metal content, the high salt content and the like of the electroplating wastewater, and particularly, when two-stage concentration or three-stage concentration is carried out, the pressure difference of the system is large due to the two-stage or three-stage pollution and blocking, the water yield is low, and the system cannot normally and stably operate.
In the prior art, a patent with a patent number of CN03157655.9 discloses an electroplating wastewater treatment method, and the patent uses three types of membrane performances, namely nanofiltration, a brackish water membrane and a seawater desalination membrane according to a three-level membrane concentration technology for electroplating wastewater membrane concentration, and is suitable for general electroplating wastewater and is not suitable for high-salt-content electroplating wastewater. When the salt content is 30000-80000, the common seawater desalination membrane is difficult to treat.
SUMMERY OF THE UTILITY MODEL
The utility model is carried out for solving the problems, and aims to provide a membrane recycling device for high-salinity wastewater in the hardware electroplating industry. The system can continuously run at low load mainly through paragraph design, backflow design and standby design.
The utility model provides a membrane retrieval and utilization device of high salt waste water of five metals electroplating industry has such characteristic, include: the system comprises a high-salt-content wastewater collecting barrel, a raw water pump, a scale inhibitor dosing tank, a security filter, a high-pressure pump, an electromagnetic valve, a first high-pressure reverse osmosis device, a second high-pressure reverse osmosis device, a check valve, a bag filter, a recycle water through pipe, a concentrated liquid committing barrel, a first tee joint, a second tee joint, a third tee joint and a fourth tee joint, wherein the high-salt-content wastewater collecting barrel is connected with the raw water pump; the rear end of the first pipeline is connected with a first electric valve, the rear end of the first electric valve is connected with first high-pressure reverse osmosis equipment, the rear end of the second pipeline is connected with a second electric valve, and the rear end of the second electric valve is connected with second high-pressure reverse osmosis equipment; the concentrated water side pipeline of the first high-pressure reverse osmosis equipment is connected with a first one-way valve, the tail end of the pipeline behind the first one-way valve is connected with a third three-way valve, one end of the third three-way valve is connected with an electric valve and then finally flows back to a wastewater collection pool through a bag filter, and the other end of the third three-way valve is connected with an electric valve and then is connected with a concentrated solution delivery barrel; the concentrated water side pipeline of the second high-pressure reverse osmosis equipment is connected with a second one-way valve, the tail end of a pipeline behind the second one-way valve is connected with a fourth three-way valve, one end of the fourth three-way valve shares a return pipe and a bag filter with the first high-pressure reverse osmosis concentrated water pipe, and finally returns to the wastewater collection pool, and the other end of the fourth three-way valve shares a drain pipe with the first high-pressure reverse osmosis concentrated water pipe and is discharged into a concentrated solution committing barrel.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein the pressure of the high-pressure pump can reach 30-50 kg.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein, the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment are a seawater desalination membrane shell and a seawater desalination membrane.
In addition, the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment share a raw water pump, a dosing tank, a cartridge filter and a high-pressure pump.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment can independently operate through regulating valves, and one set of equipment does not influence the other set of equipment when being cleaned and maintained or special conditions occur.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein, first high pressure reverse osmosis equipment and second high pressure reverse osmosis equipment all are equipped with the check valve in dense water side.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein, the concentrated water pipes of the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment share the return pipe and the discharge pipe behind the one-way valve.
In addition, the water production pipe of the first high-pressure reverse osmosis equipment and the water production pipe of the second high-pressure reverse osmosis equipment share the water production pipe behind the electromagnetic valve.
In addition, the scale inhibitor added in the scale inhibitor feeding box is a scale inhibitor aiming at carbonate and sulfate.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein the first high pressure reverse osmosis device and the second high pressure reverse osmosis device are designed in a single stage.
The utility model provides an among the membrane retrieval and utilization device of the high salt waste water of five metals electroplating industry, can also have such characteristic: wherein, the concentrated water is refluxed to form water, the conductivity of the water is continuously recycled below 100000 mu S/cm, and the water is discharged once when the conductivity is more than 100000 mu S/cm.
The utility model discloses an effect and effect:
1. the utility model discloses an among the membrane retrieval and utilization device of five metals electroplating industry high salt waste water, make and use the multistage to handle to change into the single-stage and handle, use one set of equipment to change into the membrane shell alone operation, sharing raw water pump, cartridge filter, high-pressure pump and return water bag filter, greatly reduced because the waste water treatment instability that the dirty stifled brought of membrane is gone up to the investment cost of equipment.
2. The utility model discloses a membrane retrieval and utilization device of high salt waste water of five metals electroplating industry is provided with two sets of high-pressure reverse osmosis unit simultaneously, guarantees because another set can normal operating when one set of dirty stifled needs of system are maintained.
3. The utility model discloses a membrane retrieval and utilization device of high salt waste water of five metals electroplating industry goes out reverse osmosis dense water and sets up the check valve, and when one set of system operation, another set of system can not receive any influence.
Drawings
Fig. 1 is a schematic structural diagram of a membrane recycling device for high-salinity wastewater in the hardware electroplating industry in an embodiment of the invention.
Reference numerals: a high salt-containing wastewater collection barrel 10; a raw water pump 11; a scale inhibitor dosing barrel 12; a security filter 13; a high-pressure pump 14; a water inlet valve 1 of a first high-pressure reverse osmosis device; a water inlet valve 2 of the second high-pressure reverse osmosis equipment; a first high pressure reverse osmosis device 8; a second high pressure reverse osmosis plant 9; a concentrated water reflux valve 3 of the first high-pressure reverse osmosis equipment; a concentrated water return valve 4 of a second high-pressure reverse osmosis device; a first concentrated water discharge check valve 19; a first reverse osmosis device concentrate discharge valve 7 (the same as the second high pressure reverse osmosis device concentrate discharge valve); a second concentrated water discharge check valve 18; a recycling water tank 15; a concentrated solution outlet barrel 16 and a bag filter 17.
Detailed Description
In order to make the technical means, creation characteristics, achievement purpose and efficacy of the present invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically illustrate the membrane recycling device for high-salinity wastewater in hardware electroplating industry.
< example >
As shown in fig. 1, the membrane recycling device for high-salinity wastewater in hardware electroplating industry comprises:
the wastewater enters a high-salt wastewater collection barrel 10 and then is pumped into a high-pressure pump through a raw water pump 11, and the wastewater is added with the chemical through a scale inhibitor dosing barrel 12, filtered through a cartridge filter 13 and then enters a high-pressure pump 14; the outlet of the high-pressure pump is respectively communicated with the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment through a tee joint
The first high-pressure reverse osmosis device 8 and the second high-pressure reverse osmosis device 9 have the same structure and are designed in a section.
When the wastewater is treated by the first reverse osmosis device, after the wastewater passes through the high-pressure pump, the electromagnetic valve 1 is opened, the battery valve 2 is closed, the wastewater enters the first-stage high-pressure reverse osmosis device 8, then the concentrated water is refluxed by opening the valve 3 and closing the valves 4 and 7, and the clear water is recycled by opening the valve 5 and closing the valve 6.
When the conductivity of the wastewater collection pool reaches 100000 mu S/cm, other valves are unchanged, the valves 4 and 7 are opened, the valve 3 is closed to discharge the wastewater, and the discharge capacity is determined according to the water inlet condition.
When waste water is treated by the second reverse osmosis device, after the waste water passes through the high-pressure pump, the electromagnetic valve 2 is opened, the battery valve 1 is closed, the waste water enters the first-stage high-pressure reverse osmosis device 9, then the valves 3 and 4 are opened, the valve 7 is closed to reflux the concentrated water, and the clear water is recycled by opening the valve 6 and closing the valve 5.
When the conductivity of the wastewater collection pool reaches 100000 mu S/cm, other valves are unchanged, the valves 4 and 7 are opened, the valve 3 is closed to discharge the wastewater, and the discharge capacity is determined according to the water inlet condition.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (12)
1. Membrane retrieval and utilization device of hardware electroplating trade high salt waste water, its characterized in that includes: a high-salt-content wastewater collecting barrel, a raw water pump, a security filter, a high-pressure pump, an electric valve, a first high-pressure reverse osmosis device, a second high-pressure reverse osmosis device, a one-way valve, a bag filter, a recycling water barrel, a concentrated liquid removing barrel, a first tee joint, a second tee joint, a third tee joint and a fourth tee joint,
the high-salt-content wastewater collection barrel is connected with a raw water pump, the raw water pump is connected with a first tee joint, one end of the first tee joint is connected with a scale inhibitor dosing barrel, the other end of the first tee joint is connected with a security filter, and the rear end of the security filter is connected with a high-pressure pump;
the second tee joint is connected behind the high-pressure pump, and two ends of the second tee joint are respectively connected with the first pipeline and the second pipeline;
the rear end of the first pipeline is connected with a first electric valve, the rear end of the first electric valve is connected with first high-pressure reverse osmosis equipment, the rear end of the second pipeline is connected with a second electric valve, and the rear end of the second electric valve is connected with second high-pressure reverse osmosis equipment;
the concentrated water side pipeline of the first high-pressure reverse osmosis equipment is connected with a first one-way valve;
the tail end of the pipeline behind the first one-way valve is connected with a third tee joint;
one end of the third tee joint is connected with an electric valve and then finally flows back to the wastewater collection tank through the bag filter, and the other end of the third tee joint is connected with the electric valve and then is connected with the concentrated solution delivery barrel;
the concentrated water side pipeline of the second high-pressure reverse osmosis equipment is connected with a second one-way valve;
the tail end of the pipeline behind the second one-way valve is connected with a fourth tee joint;
one end of the fourth tee joint shares a return pipe and a bag filter with the first high-pressure reverse osmosis concentrated water pipe, and finally returns to the wastewater collection pool, and the other end of the fourth tee joint shares a drain pipe with the first high-pressure reverse osmosis concentrated water pipe and drains into the concentrated solution delivery barrel.
2. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein the pressure of the high-pressure pump is 30-50 kg, and the low-pressure operation of the high-pressure membrane is ensured.
3. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment are respectively a seawater desalination membrane shell and a seawater desalination membrane.
4. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment share a raw water pump, a dosing tank, a cartridge filter and a high-pressure pump.
5. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment can independently operate through regulating valves, and one set of equipment does not influence the other set of equipment to operate when being cleaned and maintained or special conditions occur.
6. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein, first high pressure reverse osmosis equipment and second high pressure reverse osmosis equipment all are equipped with the check valve in dense water side.
7. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein, the concentrated water pipes of the first high-pressure reverse osmosis equipment and the second high-pressure reverse osmosis equipment share the return pipe and the discharge pipe behind the one-way valve.
8. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
and the water production pipe of the first high-pressure reverse osmosis equipment and the water production pipe of the second high-pressure reverse osmosis equipment share the water production pipe behind the electromagnetic valve.
9. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein the scale inhibitor added in the scale inhibitor feeding box is a scale inhibitor aiming at carbonate and sulfate.
10. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein the first high pressure reverse osmosis device and the second high pressure reverse osmosis device are designed in a single stage.
11. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
and before returning to the original water tank, the concentrated water passes through a bag filter to reduce turbidity and colloid concentration.
12. The membrane recycling device for high-salinity wastewater in the hardware electroplating industry according to claim 1, characterized in that:
wherein, the concentrated water is refluxed to form water, the conductivity of the water is continuously recycled below 100000 mu S/cm, and the water is discharged once when the conductivity is more than 100000 mu S/cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023255141.8U CN214990732U (en) | 2020-12-29 | 2020-12-29 | Membrane recycling device for high-salinity wastewater in hardware electroplating industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023255141.8U CN214990732U (en) | 2020-12-29 | 2020-12-29 | Membrane recycling device for high-salinity wastewater in hardware electroplating industry |
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| CN214990732U true CN214990732U (en) | 2021-12-03 |
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| CN202023255141.8U Active CN214990732U (en) | 2020-12-29 | 2020-12-29 | Membrane recycling device for high-salinity wastewater in hardware electroplating industry |
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| CN (1) | CN214990732U (en) |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Qimiao Environmental Technology Co.,Ltd. Assignor: SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Contract record no.: X2022310000088 Denomination of utility model: Membrane reuse device for high-salt wastewater in hardware electroplating industry Granted publication date: 20211203 License type: Common License Record date: 20220829 |