High-efficiency desalting device for industrial wastewater

Abstract

The utility model discloses an efficient desalting device for industrial wastewater. The efficient desalting device for the industrial wastewater comprises a hollow bearing box, a water purifying pipe, a concentrated solution pipe, an upper electrode plate and a lower electrode plate, a water purification pipe and a concentrated solution pipe which are coaxially sleeved are arranged in the bearing box, and an electric adsorption cavity, a water purification cavity and a concentrated solution cavity are respectively formed from outside to inside; the outer end of a water purification through hole of the water purification pipe is communicated with the electric adsorption cavity, and the inner end of the water purification through hole is communicated with the water purification cavity; the inner liquid through hole of the concentrated liquid pipe is communicated with the outer liquid through hole of the purified water pipe through a middle pipe, and the concentrated liquid pipe is provided with a second electric switch valve; the upper electrode plate is connected with the upper cavity wall of the electro-adsorption cavity and electrically connected with the anode of the direct-current power supply; the lower electrode plate is connected to the lower cavity wall of the electro-adsorption cavity and electrically connected with the negative electrode of the direct-current power source, treated purified water is discharged out of the purified water cavity, and concentrated liquid is discharged out of the concentrated liquid cavity. The electro-adsorption desalting device has the effects of electro-adsorption desalting, high desalting efficiency, simple structure and small occupied area.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to an industrial wastewater high-efficiency desalination device. Background Art

[0002] In recent years, with the rapid development of industry, a large amount of industrial wastewater is generated in industrial production, and sewage treatment has become an important part of environmental governance. Since industrial wastewater contains a large amount of salt, desalination of industrial wastewater has become the focus. Currently, membrane treatment methods are often used: its defects are as follows: firstly, the process flow is complex, with many processes, high failure rate, and poor operation stability, so the desalination efficiency is low; secondly, it is necessary to add medicine multiple times, with high cost, and the system needs to be frequently maintained, with high maintenance cost; thirdly, the membrane device needs to be frequently cleaned and replaced, with high operation cost; fourthly, the membrane device is large in volume, occupies a large area, and requires a large investment in land cost. Content of the Utility Model

[0003] In order to solve one or more of the above problems, the utility model provides an industrial wastewater high-efficiency desalination device.

[0004] According to one aspect of the utility model, the industrial wastewater high-efficiency desalination device includes: a bearing box with a hollow interior, a purified water pipe, a concentrated liquid pipe, an upper electrode plate, and a lower electrode plate;

[0005] The upper box plate and the lower box plate of the bearing box are connected by a middle sealing side plate to form a box body structure with a hollow interior. The upper end of the purified water pipe is vertically connected to the upper box plate and the lower end is vertically connected to the lower box plate. The concentrated liquid pipe is coaxially sleeved inside the purified water pipe. The space between the purified water pipe and the concentrated liquid pipe is the purified water cavity, the pipe hole of the concentrated liquid pipe is the concentrated liquid cavity, and the space between the purified water pipe and the bearing box is the electro-adsorption cavity. The outer wall of the electro-adsorption cavity is provided with a liquid inlet communicating with the raw liquid pipe;

[0006] The side wall of the purified water pipe is provided with a purified water through hole and an external liquid through hole. The outer end of the purified water through hole communicates with the electro-adsorption cavity and the inner end communicates with the purified water cavity. A first electric switch valve is arranged on the purified water through hole;

[0007] The side wall of the concentrated liquid pipe is provided with an internal liquid through hole opposite to the external liquid through hole. The external liquid through hole and the internal liquid through hole are connected by an intermediate pipe. A second electric switch valve is arranged on the concentrated liquid pipe;

[0008] The upper electrode plate is connected to the upper cavity wall of the electro-adsorption cavity and is electrically connected to the positive pole of the DC power supply; the lower electrode plate is connected to the lower cavity wall of the electro-adsorption cavity and is electrically connected to the negative pole of the DC power supply;

[0009] The DC power supply is started to energize the upper electrode plate and the lower electrode plate of the electro-adsorption chamber. The first electric switch valve is opened and the second electric switch valve is closed. The industrial wastewater stock solution is continuously input into the electro-adsorption chamber through the stock solution pipe. The salt ions in the stock solution are adsorbed by the electric field of the upper electrode plate and the lower electrode plate. The treated purified water flows into the purified water chamber through the purified water through-hole and is discharged. When the salt ions in the electro-adsorption chamber accumulate into concentrated solution, the DC power supply and the first electric switch valve are closed and the second electric switch valve is opened. The concentrated solution is discharged through the external liquid through-hole, the intermediate pipe, the internal liquid through-hole and the concentrated solution chamber.

[0010] In some embodiments, insulating plates are provided on both the upper and lower wall plates of the electro-adsorption chamber, and the upper surface of the upper electrode plate and the lower surface of the lower electrode plate are attached to the insulating plates.

[0011] In some embodiments, the first threaded member passes through the upper box plate and the insulating plate and is threadedly connected to the upper electrode plate; the first threaded member passes through the lower box plate and the insulating plate and is threadedly connected to the lower electrode plate. The first threaded member is an insulating screw.

[0012] In some embodiments, side insulating guard plates are provided between the upper electrode plate and the lower electrode plate and the upper and lower ends of the sealed side plate and the purified water pipe respectively;

[0013] Or the insulating plate and the side insulating guard plate are epoxy resin plates or polytetrafluoroethylene plates.

[0014] In some embodiments, the positive electrode of the DC power supply passes through the upper box plate and the insulating plate and is electrically connected to the upper electrode plate; the negative electrode of the DC power supply passes through the lower box plate and the insulating plate and is electrically connected to the lower electrode plate.

[0015] In some embodiments, the upper pipe wall of the purified water pipe is welded with an upper end plate and the lower pipe wall is welded with a lower end plate. The lower end plate is provided with a purified water outlet hole; the upper end plate and the lower end plate are respectively connected to the middle of the upper box plate and the lower box plate through threaded members;

[0016] The concentrated solution pipe is welded or threadedly connected under the upper end plate; the upper end of the concentrated solution pipe is provided with an upper sealing plate and the lower end is provided with a lower sealing plate.

[0017] In some embodiments, the purified water pipe further includes an upper flange. The middle of the upper flange is connected to the upper end plate through a second threaded member and is connected to the upper sealing plate through a fourth threaded member; the upper flange is threadedly connected to the upper box plate through a fifth threaded member and the lower end plate is connected to the lower box plate through a third threaded member.

[0018] In some embodiments, a positioning stepped opening is provided at the center of the upper box plate. The purified water pipe can pass through the positioning stepped opening. The middle positioning block of the upper flange is sleeved on the lower port of the positioning stepped opening and its upper ear plate is sleeved on the lower port of the positioning stepped opening. The middle positioning block of the upper flange and the lower wall of the upper port are connected through a fifth threaded member.

[0019] In some embodiments, the purified water outlet is fixedly connected to the water outlet pipe, and the water outlet pipe extends out of the lower through hole of the lower box plate; the lower sealing plate of the concentrated liquid pipe is provided with a drain pipe, and the vertical end of the drain pipe passes through the inner cavity of the water outlet pipe and its bent wall passes through the side pipe wall.

[0020] In some embodiments, a salt ion concentration measuring instrument is provided in the electro-sorption cavity, and the industrial control PLC controller is electrically connected to the DC power supply, the second electric switch valve, the first electric switch valve, and the salt ion concentration measuring instrument.

[0021] The industrial wastewater high-efficiency desalination device uses an electro-sorption structure for desalination, and its beneficial effects are as follows: the process flow is simple, only the start and stop of the DC power supply and the opening of the first electric switch valve and the second electric switch valve need to be controlled to achieve the purpose of producing purified water when powered on and concentrated brine when powered off. The process flow is simple, with few processes, low failure rate, high operation stability, and high desalination efficiency; second, no chemicals need to be added, the operation and maintenance are simple, and the cost is effectively reduced; third, the power consumption cost is effectively reduced compared with the chemical cost, the membrane device, and the frequent maintenance cost; fourth, the structure is simple, the floor area is small, and the land investment is effectively saved; fifth, the structure is provided with coaxial purified water pipes and concentrated liquid pipes, which further optimizes the product structure, improves the operation speed, and effectively improves the desalination efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view schematic diagram of the industrial wastewater high-efficiency desalination device according to an embodiment of the present invention;

[0023] Figure 2 is Figure 1 a cross-sectional view schematic diagram of the industrial wastewater high-efficiency desalination device shown producing purified water;

[0024] Figure 3 is Figure 1 a cross-sectional view schematic diagram of the industrial wastewater high-efficiency desalination device shown producing concentrated water;

[0025] Figure 4 is Figure 3 a partial schematic diagram of the industrial wastewater high-efficiency desalination device shown;

[0026] Figure 5 is Figure 3 an integrated schematic diagram of the purified water pipe and the concentrated liquid pipe shown;

[0027] Figure 6 is Figure 5 an upper end schematic diagram of the purified water pipe and the concentrated liquid pipe shown;

[0028] Figure 7 is Figure 5 a lower end schematic diagram of the purified water pipe and the concentrated liquid pipe shown;

[0029] Carrying box 1, electro - adsorption cavity 10, upper box plate 11, lower box plate 12, sealed side plate 13, liquid inlet 14, positioning stepped opening 15, lower through - opening 16;

[0030] Purified water pipe 2, purified water cavity 20, purified water through - hole 21, external liquid - passing hole 22, first electric switch valve 23, upper end plate 24, lower end plate 25, purified water outlet hole 26, upper flange 27, middle positioning block 271, upper ear plate 272, water outlet pipe 28;

[0031] Concentrate pipe 3, concentrate cavity 30, internal liquid - passing hole 31, middle pipe 32, second electric switch valve 33, upper sealing plate 34, lower sealing plate 35, drain pipe 36;

[0032] Upper electrode plate 4; lower electrode plate 5; insulating plate 6, side insulating guard plate 7; raw liquid pipe 8; salt - ion concentration measuring instrument 9;

[0033] First threaded part 01, second threaded part 02, third threaded part 03, fourth threaded part 04, fifth threaded part 05; positive electrode 07, negative electrode 08. Detailed implementation mode

[0034] The present utility model will be further described in detail below with reference to the drawings. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0035] Figures 1 to 7 Schematically shows an industrial wastewater high - efficiency desalination device according to an embodiment of the present utility model. As shown in the figure, the industrial wastewater high - efficiency desalination device includes: a carrying box 1 with a hollow interior, a purified water pipe 2, a concentrate pipe 3, an upper electrode plate 4 and a lower electrode plate 5;

[0036] The upper box plate 11 and the lower box plate 12 of the carrying box 1 are connected by the middle sealed side plate 13 to form a box - body structure with a hollow interior. The upper end of the purified water pipe 2 is vertically connected to the upper box plate 11 and the lower end is vertically connected to the lower box plate 12. The concentrate pipe 3 is coaxially sleeved inside the purified water pipe 2. The space between the purified water pipe 2 and the concentrate pipe 3 is the purified water cavity 20, the pipe hole of the concentrate pipe 3 is the concentrate cavity 30, the space between the purified water pipe 2 and the carrying box 1 is the electro - adsorption cavity 10, and a liquid inlet 14 communicating with the raw liquid pipe 8 is provided on the outer wall of the electro - adsorption cavity 10;

[0037] The side wall of the purified water pipe 2 is provided with a purified water through - hole 21 and an external liquid - passing hole 22. The outer end of the purified water through - hole 21 communicates with the electro - adsorption cavity 10 and the inner end communicates with the purified water cavity 20. A first electric switch valve 23 is provided on the purified water through - hole 20;

[0038] The side wall of the concentrated liquid pipe 3 is provided with an inner liquid through hole 31 opposite to the outer liquid through hole 22. The outer liquid through hole 22 and the inner liquid through hole 31 are communicated through an intermediate pipe 32. The concentrated liquid pipe 3 is provided with a second electric switch valve 33;

[0039] The upper electrode plate 4 is connected to the upper cavity wall of the electroadsorption chamber 10 and is electrically connected to the positive pole of the DC power supply; the lower electrode plate 5 is connected to the lower cavity wall of the electroadsorption chamber 10 and is electrically connected to the negative pole of the DC power supply;

[0040] When the DC power supply is started, the upper electrode plate 4 and the lower electrode plate 5 of the electroadsorption chamber 10 are electrified. The first electric switch valve 23 is opened and the second electric switch valve 33 is closed. The raw liquid pipe 8 continuously inputs the industrial wastewater raw liquid into the electroadsorption chamber 10. The salt ions in the raw liquid are adsorbed by the electric field of the upper electrode plate 4 and the lower electrode plate 5. The treated purified water flows into the purified water chamber 20 through the purified water through hole 21 and is discharged. When the salt ions in the electroadsorption chamber 10 accumulate into concentrated liquid, the DC power supply and the first electric switch valve 23 are closed and the second electric switch valve 33 is opened. The concentrated liquid is discharged through the outer liquid through hole 22, the intermediate pipe 32, the inner liquid through hole 31, and the concentrated liquid chamber 30.

[0041] The industrial wastewater high-efficiency desalination device uses an electroadsorption structure for desalination. Its beneficial effects are as follows: the process flow is simple. It only needs to control the start and stop of the DC power supply and the opening of the first electric switch valve 23 and the second electric switch valve, so as to achieve the purpose of producing purified water when electrified and discharging concentrated brine when the power is turned off. The process flow is simple, the number of processes is small, the failure rate is low, the operation stability is high, and the desalination efficiency is high; secondly, no chemicals need to be added, the operation and maintenance are simple, and the cost is effectively reduced; thirdly, the electricity cost is effectively reduced compared with the chemical cost, the membrane device, and the frequent maintenance cost; fourthly, the structure is simple, the floor area is small, and the land investment is effectively saved; fifthly, the coaxial arrangement of the purified water pipe 2 and the concentrated liquid pipe 3 in this structure further optimizes the product structure, improves the operation speed, and effectively improves the desalination efficiency.

[0042] Furthermore, insulating plates 6 are provided on the upper and lower wall plates of the electroadsorption chamber 10, and the upper surface of the upper electrode plate 4 and the lower surface of the lower electrode plate 5 are attached to the insulating plates 6. Its beneficial effect is that the insulating plates can prevent the equipment shell from conducting electricity and protect the human body from electric shock.

[0043] Preferably, the first threaded member 01 passes through the upper box plate 11 and the insulating plate 6 and is threadedly connected to the upper electrode plate 4; the first threaded member 01 passes through the lower box plate 12 and the insulating plate 6 and is threadedly connected to the lower electrode plate 5. The first threaded member 01 is an insulating screw. Its beneficial effect is that this structure further improves the conductive safety performance.

[0044] Preferably, side insulating shields 7 are provided between the upper electrode plate 4 and the lower electrode plate 5 and the upper and lower ends of the purified water pipe 2 and the sealing side plate 13 respectively; its beneficial effect is to avoid internal electric leakage, effectively utilize the power supply, and increase the cost.

[0045] Preferably, the insulating plate 6 and the side insulating guard plate 7 are epoxy resin plates or polytetrafluoroethylene plates. The beneficial effect is that the above materials have good electrical conductivity.

[0046] Furthermore, the positive electrode 07 of the DC power supply passes through the upper box plate 11 and the insulating plate 6 to be electrically connected to the upper electrode plate 4; the negative electrode 08 of the DC power supply passes through the lower box plate 12 and the insulating plate 6 to be electrically connected to the lower electrode plate 5. The beneficial effect is that the above structure is simple and can achieve good power-on.

[0047] Furthermore, the upper and lower pipe walls of the concentrated liquid pipe 3 and the clean water pipe 2 are respectively welded in the middle of the upper box plate 11 and the lower box plate 12. Preferably, the upper pipe wall of the clean water pipe 2 is welded to the upper end plate 24 and the lower pipe wall is welded to the lower end plate 25, and the lower end plate 25 is provided with a clean water outlet hole 26; the upper end plate 24 and the lower end plate 25 are respectively connected to the middle of the upper box plate 11 and the lower box plate 12 through threaded parts. Preferably, the concentrated liquid pipe 3 is welded or threadedly connected under the upper end plate 24; the upper end of the concentrated liquid pipe 3 is provided with an upper sealing plate 34 and the lower end is provided with a lower sealing plate 35. The beneficial effect is that the structure is simple and has high strength.

[0048] Preferably, the clean water pipe 2 further includes an upper flange 27. The middle of the upper flange 27 is connected to the upper end plate 24 through the second threaded part 02 and is connected to the upper sealing plate 34 through the fourth threaded part 04, thus becoming an integral body; the upper flange 27 is threadedly connected to the upper box plate 11 through the fifth threaded part 05 and the lower end plate 25 is connected to the lower box plate 12 through the third threaded part 03. The beneficial effect is that the detachable structure is convenient for assembly.

[0049] Preferably, the upper box plate 11 is provided with a positioning stepped opening 15 at the center. The clean water pipe 2 can pass through the positioning stepped opening 15. The middle positioning block 271 of the upper flange 27 is sleeved on the lower port of the positioning stepped opening 15 and its upper ear plate 272 is sleeved on the lower port of the positioning stepped opening 15. The middle positioning block 271 of the upper flange 27 and the lower wall of the upper port are connected through the fifth threaded part 05. The beneficial effect is that this structure realizes the disassembly of the water pipe at the upper end, which is convenient for assembly and maintenance.

[0050] Preferably, the clean water outlet 26 is fixedly connected to the water outlet pipe 28, and the water outlet pipe 28 extends out of the lower through port 16 of the lower box plate 12; the lower sealing plate 35 of the concentrated liquid pipe 3 is provided with a drain pipe 36, and the vertical end of the drain pipe 36 passes through the inner cavity of the water outlet pipe 26 and its bent wall passes through the side pipe wall. The beneficial effect is that this structure optimizes the liquid discharge layout and effectively reduces the volume of the equipment.

[0051] Among them, the drain pipe 36 is communicated with the evaporation separator, the water in the water outlet pipe 26 is recycled, and the raw liquid pipe 8 is communicated with the raw liquid pool.

[0052] Furthermore, a salt ion concentration measuring instrument 9 is provided inside the electro-adsorption chamber 10. The industrial control PLC controller is electrically connected to a DC power supply, a second electric switching valve 33, a first electric switching valve 23, and the salt ion concentration measuring instrument 9; the second electric switching valve 33 and the first electric switching valve 23 are electric plug valves. The beneficial effects are as follows: This structure realizes automatic control, effectively achieves optimal desalination, and at the same time, without human participation, effectively reduces the health hazards to personnel.

[0053] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. Industrial wastewater high-efficiency desalination device, characterized in that: It comprises: a hollow carrying box (1), a water purification pipe (2), a concentrated liquid pipe (3), an upper electrode plate (4) and a lower electrode plate (5); The upper box plate (11) and the lower box plate (12) of the carrying box (1) are connected by a sealing side plate (13) in the middle to form an internal hollow box structure; the upper end of the clean water pipe (2) is vertically connected to the upper box plate (11) and the lower end is vertically connected to the lower box plate (12); the concentrated liquid pipe (3) is coaxially sleeved in the clean water pipe (2); the space between the clean water pipe (2) and the concentrated liquid pipe (3) is a clean water cavity (20); the tube hole of the concentrated liquid pipe (3) is a concentrated liquid cavity (30); the space between the clean water pipe (2) and the carrying box (1) is an electric adsorption cavity (10); the outer wall of the electric adsorption cavity (10) is provided with a liquid inlet (14) connected to the raw liquid pipe (8); A water purification through hole (21) and an external liquid through hole (22) are provided on the side wall of the water purification pipe (2); the outer end of the water purification through hole (21) is connected to the electric adsorption chamber (10) and the inner end is connected to the water purification chamber (20); and a first electric switch valve (23) is provided on the water purification through hole (21); An inner liquid hole (31) opposite to the outer liquid hole (22) is provided on the side wall of the concentrated liquid pipe (3); the outer liquid hole (22) and the inner liquid hole (31) are connected via an intermediate pipe (32); and the concentrated liquid pipe (3) is provided with a second electric switch valve (33); The upper electrode plate (4) is connected to the upper cavity wall of the electric adsorption cavity (10) and is electrically connected to the positive electrode of the direct current power supply; the lower electrode plate (5) is connected to the lower cavity wall of the electric adsorption cavity (10) and is electrically connected to the negative electrode of the direct current power supply; The DC power supply is started to energize the upper electrode plate (4) and the lower electrode plate (5) of the electric adsorption chamber (10), the first electric switch valve (23) is opened and the second electric switch valve (33) is closed, the raw liquid pipe (8) continuously inputs industrial wastewater raw liquid into the electric adsorption chamber (10), the salt ions in the raw liquid are adsorbed by the electric field of the upper electrode plate (4) and the lower electrode plate (5), and the treated clean water flows into the clean water chamber (20) through the clean water through hole (21) and is discharged; when the salt ions in the electric adsorption chamber (10) accumulate into concentrated liquid, the DC power supply and the first electric switch valve (23) are closed and the second electric switch valve (33) is opened, and the concentrated liquid is discharged through the external liquid through hole (22), the intermediate tube (32), the internal liquid through hole (31), and the concentrated liquid chamber (30).

2. The industrial wastewater high-efficiency desalination device according to claim 1 is characterized in that: The upper and lower wall plates of the electric adsorption chamber (10) are both provided with insulating plates (6), and the upper surface of the upper electrode plate (4) and the lower surface of the lower electrode plate (5) are bonded to the insulating plates (6).

3. The industrial wastewater high-efficiency desalination device according to claim 2 is characterized in that: The first threaded member (01) passes through the upper box plate (11) and the insulating plate (6) to be threadedly connected to the upper electrode plate (4); the first threaded member (01) passes through the lower box plate (12) and the insulating plate (6) to be threadedly connected to the lower electrode plate (5), and the first threaded member (01) is an insulating screw.

4. The industrial wastewater high-efficiency desalination device according to claim 3 is characterized in that: The upper electrode plate (4), the lower electrode plate (5), the sealing side plate (13), and the upper and lower ends of the clean water pipe (2) are each provided with a side insulating protective plate (7); Or the insulating plate (6) and the side insulating protective plate (7) are epoxy resin plates or polytetrafluoroethylene plates.

5. The industrial wastewater high-efficiency desalination device according to claim 2 or 3, characterized in that: The positive electrode (07) of the DC power supply passes through the upper box plate (11) and the insulating plate (6) to be electrically connected to the upper electrode plate (4); the negative electrode (08) of the DC power supply passes through the lower box plate (12) and the insulating plate (6) to be electrically connected to the lower electrode plate (5).

6. The industrial wastewater high-efficiency desalination device according to claim 1 is characterized in that: The upper tube wall of the clean water pipe (2) is welded to an upper end plate (24), and the lower tube wall is welded to a lower end plate (25), and the lower end plate (25) is provided with a clean water outlet hole (26); the upper end plate (24) and the lower end plate (25) are respectively connected to the middle of the upper box plate (11) and the lower box plate (12) through screws; The concentrated liquid pipe (3) is welded or threadedly connected under the upper end plate (24); an upper sealing plate (34) is provided at the upper end of the concentrated liquid pipe (3) and a lower sealing plate (35) is provided at the lower end.

7. The industrial wastewater high-efficiency desalination device according to claim 6 is characterized in that: The water purification pipe (2) also includes an upper flange (27), the middle of which is connected to the upper end plate (24) via a second threaded member (02) and is connected to the upper sealing plate (34) via a fourth threaded member (04); the upper flange (27) is threadedly connected to the upper box plate (11) via a fifth threaded member (05) and the lower end plate (25) is connected to the lower box plate (12) via a third threaded member (03).

8. The industrial wastewater high-efficiency desalination device according to claim 7 is characterized in that: A positioning step opening (15) is provided at the center of the upper box plate (11), and the clean water pipe (2) can pass through the positioning step opening (15); the middle positioning block (271) of the upper flange (27) is sleeved on the lower port of the positioning step opening (15), and the upper ear plate (272) is sleeved on the lower port of the positioning step opening (15); the middle positioning block (271) of the upper flange (27) and the lower wall of the upper port are connected via the fifth threaded member (05).

9. The industrial wastewater high-efficiency desalination device according to claim 7, characterized in that: The purified water outlet hole (26) is fixedly connected to a water outlet pipe (28), and the water outlet pipe (28) extends outward from the lower opening (16) of the lower box plate (12); the lower sealing plate (35) of the concentrated liquid pipe (3) is provided with a drainage pipe (36), and the vertical end of the drainage pipe (36) passes through the inner cavity of the water outlet pipe (28) and the bent wall thereof passes through the side pipe wall.

10. The industrial wastewater high-efficiency desalination device according to claim 1, characterized in that: A salt ion concentration measuring instrument (9) is provided in the electric adsorption chamber (10), and the industrial control PLC controller is electrically connected to a direct current power supply, a second electric switch valve (33), a first electric switch valve (23), and the salt ion concentration measuring instrument (9).

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