Cooling liquid wastewater regeneration treatment system for metal processing

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a metal processing cooling liquid wastewater regeneration treatment system which comprises a treatment box, a guide rod is vertically mounted at the bottom of the treatment box, an oil collecting hopper is connected to the upper portion of the inner side of the treatment box through a driving part, and exchange holes are evenly formed in the outer side of a pipe body; hydrophilic oleophobic films are arranged in the exchange holes, and a plurality of kapok fiber balls are further placed at the bottom of the pipe body; a plurality of groups of regulation and control structures are arranged at the top end of the guide rod in an annular array, and the hydrophilic oleophobic film is cleaned and water-oil separation in the pipe body is controlled through the plurality of groups of regulation and control structures. The intermittent lifting oil collecting hopper moves on the surface of wastewater, oil on the surface of the wastewater can be collected, meanwhile, an oil-water mixture entering the pipe body can be separated through the hydrophilic and oleophobic film, the surface of the hydrophilic and oleophobic film can be cleaned in the separation process, and the hydrophilic and oleophobic film is prevented from being blocked by particles.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a metal processing coolant wastewater regeneration treatment system. Background Art

[0002] The main functions of coolants used in metal processing include cooling, lubrication, chip removal, and rust and corrosion prevention. The coolant wastewater used in metal processing will carry metal particles, grease from the lubricant, and the growth of microorganisms.

[0003] An existing patent application, with publication number CN104803505A, is titled "A Metal Coolant Wastewater Treatment and Regeneration System." The system comprises a pre-filter, a polypropylene filter, a first liquid storage device, a first filter, a second liquid storage device, a second filter, a third liquid storage device, a third filter, and a blending device, all connected in sequence. Furthermore, the system comprises a first return pipe, a first pump, a second return pipe, a second pump, a third return pipe, and a third pump. The first return pipe and the first pump respectively connect the first liquid storage device and the first filter, the second return pipe and the second pump respectively connect the second liquid storage device and the second filter, and the third return pipe and the third pump respectively connect the third liquid storage device and the third filter. The system provides excellent treatment efficiency, pollution-free discharge, and the ability to regenerate coolant.

[0004] In the above-mentioned prior art, a multi-pass filtering device is set up to circulate and filter the coolant wastewater. However, the coolant wastewater not only contains particulate impurities, but also contains other substances harmful to the environment that need to be treated, such as oil floating on the liquid surface. During filtration, the oil will adhere to the filter medium and cause blockage. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a metal processing coolant wastewater regeneration treatment system.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A metal processing coolant wastewater regeneration and treatment system is designed, comprising a treatment tank, a guide rod vertically mounted at the bottom of the treatment tank, an oil collecting hopper connected to the upper inner portion of the treatment tank via a drive member, a tube body disposed at the bottom of the oil collecting hopper, and the top of the guide rod extending to the inner side of the tube body. The oil collecting hopper and the tube body are connected via a feed hole, and exchange holes are uniformly formed on the outer side of the tube body. The exchange holes are provided with hydrophilic and oleophobic membranes, and a plurality of kapok fiber balls are also placed at the bottom of the tube body. The top end of the guide rod is provided with a plurality of control structures in a ring array, and the hydrophilic and oleophobic membranes are cleaned and the water-oil separation in the tube body is controlled by the plurality of control structures.

[0007] Preferably, the regulating structure includes a baffle, a straight rod and an oil wiping cloth, the straight rods are distributed in a circular array at the circumferential position of the upper end of the guide rod, the baffle is vertically installed at the distal end of the straight rod, and the baffle fits the inner wall of the tube body, the oil wiping cloth is adhered to the lower end of one side of the baffle, and the baffle drives the oil wiping cloth to move up and down, and the oil wiping cloth will come into contact with the hydrophilic and oleophobic film.

[0008] Preferably, a notch is provided at the lower end of one side of the baffle, and a plurality of elastic blocks are arranged in the notch from top to bottom, and the other side of the elastic block is bonded to the oil wiping cloth.

[0009] Preferably, a plurality of groups of toggle assemblies are distributed in a circular array outside the guide rod inside the tube body, and the toggle assemblies include a main board, a paddle and a notch; The main board is vertically fixed on the outer side of the guide rod, the paddles are symmetrically arranged on both sides of the main board, and the two paddles are arranged obliquely upward, and the notches are opened on the paddles in a penetrating manner.

[0010] Preferably, the driving member includes an electric telescopic rod, a connecting frame and a bracket, the electric telescopic rod is fixed to the inner upper end of the processing box, the connecting frame is fixed to the bottom of the electric telescopic rod, and the bracket is distributed in a circular array between the connecting frame and the oil collecting hopper.

[0011] Preferably, the hydrophilic and oleophobic membrane is a polytetrafluoroethylene modified membrane, and the thickness of the hydrophilic and oleophobic membrane matches the thickness of the exchange pores.

[0012] Preferably, an aeration assembly is provided at the bottom of the treatment box, and several groups of aeration assemblies are distributed in an array at the bottom of the treatment box. A strong oxidant is filled into the treatment box through the multiple groups of aeration assemblies, and ozone is selected as the strong oxidant.

[0013] Preferably, multiple groups of first rope bodies are suspended at the lower end of the oil collecting hopper, a magnet ring is fixedly bolted to the bottom of the first rope body, a second rope body is connected between the magnet ring and the bottom of the processing box, and the redundancy of the second rope body is greater than that of the first rope body.

[0014] Preferably, the plurality of magnet rings swing along with the rising bubbles, and adjacent magnet rings are not affected by magnetic attraction.

[0015] Preferably, the upper portion of the processing box is provided with an upper cover, a material feed port is provided on the upper cover, and a liquid discharge port is also provided at the bottom of the processing box.

[0016] The present invention proposes a metal processing coolant wastewater regeneration and treatment system, which has the beneficial effect of: the metal processing coolant wastewater regeneration and treatment system uses an intermittently rising and lowering oil collecting bucket to move on the surface of the wastewater, which can collect the oil on its surface. At the same time, the oil-water mixture entering the pipe body can be separated by the hydrophilic oleophobic membrane, and the surface of the hydrophilic oleophobic membrane can be cleaned during the separation process to prevent particles from clogging the hydrophilic oleophobic membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a metal processing coolant wastewater regeneration treatment system proposed by the present invention.

[0018] Figure 2 This is a structural schematic diagram of an oil collecting hopper of a metal processing coolant wastewater regeneration treatment system proposed by the present invention.

[0019] Figure 3 This is a structural schematic diagram of the positional relationship between the oil collecting hopper and the pipe body of a metal processing coolant wastewater regeneration treatment system proposed by the present invention.

[0020] Figure 4 for Figure 1 An enlarged structural diagram of part A of the proposed metalworking coolant wastewater regeneration and treatment system.

[0021] Figure 5 This is a structural schematic diagram of the inner side of a pipe body of a metal processing coolant wastewater regeneration treatment system proposed by the present invention.

[0022] Figure 6 This is a structural schematic diagram of a toggle assembly of a metal processing coolant wastewater regeneration treatment system proposed by the present invention.

[0023] Figure 7 for Figure 5 An enlarged structural diagram of part B of a proposed metalworking coolant wastewater regeneration and treatment system.

[0024] In the figure: processing box 1, feed port 2, electric telescopic rod 3, oil collecting hopper 4, connecting frame 5, bracket 6, exchange hole 7, tube body 8, guide rod 9, magnet ring 10, first rope body 11, second rope body 12, aeration assembly 13, notch 14, feed port 15, baffle 16, straight rod 17, elastic block 18, oil wiping cloth 19, notch 20, main board 21, kapok fiber ball 22, paddle 23, hydrophilic and oleophobic membrane 24. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1, reference Figure 1-3 A metal processing coolant wastewater regeneration and treatment system includes a treatment box 1, an upper cover is provided on the upper part of the treatment box 1, a feed port 2 is provided on the upper cover, and a liquid discharge port is also provided at the bottom of the treatment box 1. A guide rod 9 is vertically installed at the bottom of the treatment box 1. An oil collecting hopper 4 is connected to the upper inner part of the treatment box 1 through a driving member. A tube body 8 is provided at the bottom of the oil collecting hopper 4, and the top of the guide rod 9 extends to the inside of the tube body 8. The oil collecting hopper 4 and the tube body 8 are connected through a feed hole 15. Exchange holes 7 are evenly opened on the outside of the tube body 8. A hydrophilic and oleophobic membrane 24 is provided in the exchange holes 7. A plurality of kapok fiber balls 22 are also placed at the bottom of the tube body 8. The driving part includes an electric telescopic rod 3, a connecting frame 5 and a bracket 6. The electric telescopic rod 3 is fixed to the upper end of the inner side of the processing box 1, the connecting frame 5 is fixed to the bottom of the electric telescopic rod 3, and the bracket 6 is distributed in a circular array between the connecting frame 5 and the oil collecting hopper 4. The top of the guide rod 9 is provided with multiple groups of control structures in a circular array. The hydrophilic and oleophobic membrane 24 is cleaned and the water-oil separation in the control tube body 8 is controlled through the multiple groups of control structures.

[0027] Reference Figure 5-7 The regulating structure includes a baffle 16, a straight rod 17 and an oil wiping cloth 19. The straight rods 17 are distributed in a circular array at the circumferential position of the upper end of the guide rod 9. The baffle 16 is vertically installed at the distal end of the straight rod 17, and the baffle 16 fits the inner wall of the tube body 8. The oil wiping cloth 19 is adhered to the lower end of one side of the baffle 16. In the process of the baffle 16 driving the oil wiping cloth 19 to move up and down, it will come into contact with the hydrophilic oleophobic membrane 24. The hydrophilic oleophobic membrane 24 is specifically a polytetrafluoroethylene modified membrane, and the thickness of the hydrophilic oleophobic membrane 24 matches the thickness of the exchange hole 7.

[0028] A notch 20 is formed at the lower end of one side of the baffle 16 . A plurality of elastic blocks 18 are arranged in the notch 20 from top to bottom. The other side of the elastic block 18 is bonded to an oil wiping cloth 19 .

[0029] The coolant wastewater is injected into the interior of the treatment box 1 from the feed port 2, and the height of the liquid level is controlled. At the initial position height, the liquid level is below the oil collecting hopper 4. The electric telescopic rod 3 is started to move to the lower end, and the position of the oil collecting hopper 4 drops. When the upper eaves of the oil collecting hopper 4 just covers the upper liquid surface of the wastewater, the oil floating on the water surface enters the inner side of the oil collecting hopper 4 and enters the interior of the pipe body 8 through the feed hole 15. When the electric telescopic rod 3 drives the oil collecting hopper 4 to rise during the return stroke, the floating oil on the liquid surface stops entering the oil collecting hopper 4. At the same time, the hydrophilic and oleophobic membrane 24 is a polytetrafluoroethylene modified membrane. After the oil collecting hopper 4 leaves the wastewater, the hydrophilic properties of the polytetrafluoroethylene modified membrane are used to re-drain the water entering the pipe body 8 and leave the oil inside the pipe body 8.

[0030] When the oil collecting hopper 4 is in the process of descending, the position of the baffle 16 and the straight rod 17 on the top of the guide rod 9 remains unchanged. When the baffle 16 coincides with the position of the hydrophilic oleophobic membrane 24, the baffle 16 and the oil wiping cloth 19 provided at its lower end can wipe the surface of the hydrophilic oleophobic membrane 24 in the process of the tube body 8 continuing to descend, and remove the particulate impurities adhering to the surface of the hydrophilic oleophobic membrane 24, thereby ensuring the normal working efficiency of the hydrophilic oleophobic membrane 24. At the same time, the oil wiping cloth 19 and the baffle 16 are used to block the exchange hole 7 to prevent the waste water from entering the tube body 8. During the process below the surface, a large amount of water enters the tube body 8 from the exchange hole 7. Secondly, a plurality of elastic blocks 18 are provided on the inner side of the notch 20 at the lower end of the baffle 16. When the oil wiping cloth 19 and the exchange hole 7 are in contact with each other, the elastic block 18 tightly squeezes the oil wiping cloth 19 against one side of the hydrophilic and oleophobic membrane 24. The oil wiping cloth 19 is made of impermeable material. When the oil collecting hopper 4 moves upward, the baffle 16 and the exchange hole 7 are separated from each other, so that the exchange hole 7 is exposed, which is conducive to draining the water inside the tube body 8 after the oil collecting hopper 4 is suspended.

[0031] Example 2, reference Figure 5-6 The difference between this embodiment and embodiment 1 is that a plurality of groups of toggle components are distributed in a circular array outside the guide rod 9 inside the tube body 8, and the toggle components include a main board 21, a paddle 23 and a notch 14.

[0032] The main board 21 is vertically fixed to the outside of the guide rod 9 , and the paddles 23 are symmetrically arranged on both sides of the main board 21 , and the two paddles 23 are arranged to be inclined upward, and the notches 14 are opened through the paddles 23 .

[0033] In order to better absorb the oil entering the tube body 8, kapok fiber balls 22 are added to the bottom of the tube body 8. This material is mainly used to absorb oil. The use of kapok fiber balls 22 to absorb oil can increase the amount of oil adsorption. At the same time, multiple sets of main boards 21 and paddles 23 symmetrically arranged on both sides of the main boards 21 are evenly arranged at the upper end of the outer side of the guide rod 9. When the position of the tube body 8 is lowered, the paddles 23 will squeeze and stir the kapok fiber balls 22 at the lower end of the tube body 8. After the kapok fiber balls 22 enter between the main boards 21 and the paddles 23, , will fall from the notch 14 on the paddle 23. During the stirring process, the water-oil surface layer inside the tube body 8 can be effectively destroyed, so that the re-entering oil molecules can contact the kapok fiber balls 22 more quickly. Secondly, as mentioned above, the wastewater contains some particulate matter. These particulate matter adheres to the outer surface of the kapok fiber balls 22, which will cause the fiber pores inside the kapok fiber balls 22 to be blocked. Later, when the inside of the tube body 8 is cleaned, most of the oil is concentrated on the kapok fiber balls 22, which is more convenient to clean.

[0034] Example 3, reference Figure 4The difference between this embodiment and embodiment 1 and embodiment 2 is that an aeration assembly 13 is provided at the bottom of the treatment box 1. Several groups of aeration assemblies 13 are distributed in an array at the bottom of the treatment box 1. A strong oxidant, ozone, is filled into the treatment box 1 through the multiple groups of aeration assemblies 13. The strong oxidant is ozone. Multiple groups of first ropes 11 are suspended at the lower end of the oil collecting hopper 4. A magnet ring 10 is fixedly bolted to the bottom of the first rope 11. A second rope 12 is connected between the magnet ring 10 and the bottom of the treatment box 1. The redundancy of the second rope 12 is greater than that of the first rope 11. The multiple magnet rings 10 swing with the rising bubbles, and adjacent magnet rings 10 are not affected by magnetic attraction.

[0035] There are still some metal debris and microbial growth in the coolant wastewater. When recycling the coolant, these substances need to be processed before entering the next recycling process.

[0036] To this end, an array of aeration components 13 is provided at the bottom of the treatment box 1 to add ozone to the coolant inside the treatment box 1. Ozone can effectively remove microorganisms and prevent the problem of microbial growth in the coolant. Secondly, a magnet ring 10 is fixed between the oil collecting hopper 4 and the treatment box 1 by a first rope body 11 and a second rope body 12. The adsorption capacity of the magnet ring 10 is used to adsorb metal particles. At the same time, the redundancy of the second rope body 12 is greater than that of the first rope body 11, so that the magnet ring 10 can move up and down with the oil collecting hopper 4. Due to the ozone filled in the aeration component 13 below, upward bubbles are continuously generated in the coolant wastewater. The movement and collapse of the bubbles can cause the first rope body 11 to swing. When the first rope body 11 swings, the magnet ring 10 can swing within a certain range inside the treatment box 1, increasing the range of movement of the magnet ring 10. When swinging, the magnet ring 10 can improve the adsorption effect of the magnet ring 10 on metal particles. A certain distance is set between adjacent magnet rings 10, so that the magnet rings 10 will not be adsorbed together during operation.

[0037] The working principle of the device is: The coolant wastewater is injected into the interior of the treatment box 1 from the feed port 2, and the height of the liquid level is controlled. At the initial position height, the liquid level is below the oil collecting hopper 4. The electric telescopic rod 3 is started to move to the lower end, and the position of the oil collecting hopper 4 drops. When the upper eaves of the oil collecting hopper 4 just covers the upper liquid surface of the wastewater, the oil floating on the water surface enters the inner side of the oil collecting hopper 4 and enters the interior of the pipe body 8 through the feed hole 15. When the electric telescopic rod 3 drives the oil collecting hopper 4 to rise during the return stroke, the floating oil on the liquid surface stops entering the oil collecting hopper 4. At the same time, the hydrophilic and oleophobic membrane 24 is a polytetrafluoroethylene modified membrane. After the oil collecting hopper 4 leaves the wastewater, the hydrophilic properties of the polytetrafluoroethylene modified membrane are used to re-drain the water entering the pipe body 8 and leave the oil inside the pipe body 8.

[0038] When the oil collecting hopper 4 is in the process of descending, the position of the baffle 16 and the straight rod 17 on the top of the guide rod 9 remains unchanged. When the baffle 16 coincides with the position of the hydrophilic oleophobic membrane 24, the baffle 16 and the oil wiping cloth 19 provided at its lower end can wipe the surface of the hydrophilic oleophobic membrane 24 in the process of the tube body 8 continuing to descend, and remove the particulate impurities adhering to the surface of the hydrophilic oleophobic membrane 24, thereby ensuring the normal working efficiency of the hydrophilic oleophobic membrane 24. At the same time, the oil wiping cloth 19 and the baffle 16 are used to block the exchange hole 7 to prevent the waste water from entering the tube body 8. During the process below the surface, a large amount of water enters the tube body 8 from the exchange hole 7. Secondly, a plurality of elastic blocks 18 are provided on the inner side of the notch 20 at the lower end of the baffle 16. When the oil wiping cloth 19 and the exchange hole 7 are in contact with each other, the elastic block 18 tightly squeezes the oil wiping cloth 19 against one side of the hydrophilic and oleophobic membrane 24. The oil wiping cloth 19 is made of impermeable material. When the oil collecting hopper 4 moves upward, the baffle 16 and the exchange hole 7 are separated from each other, so that the exchange hole 7 is exposed, which is conducive to draining the water inside the tube body 8 after the oil collecting hopper 4 is suspended.

[0039] In order to better absorb the oil entering the tube body 8, kapok fiber balls 22 are added to the bottom of the tube body 8. This material is mainly used to absorb oil. Using the kapok fiber balls 22 to absorb oil can increase the amount of oil adsorption. At the same time, multiple groups of main boards 21 and paddles 23 symmetrically arranged on both sides of the main boards 21 are evenly arranged at the upper end of the outer side of the guide rod 9. When the position of the tube body 8 drops, the paddles 23 will squeeze and stir the kapok fiber balls 22 at the lower end of the tube body 8. During the stirring process, the water-oil surface layer inside the tube body 8 can be effectively destroyed, so that the re-entering oil molecules can contact the kapok fiber balls 22 faster. Secondly, as mentioned above, the wastewater contains some particulate matter. These particulate matter adheres to the outer surface of the kapok fiber balls 22, which will cause the fiber pores inside the kapok fiber balls 22 to be blocked. Later, when the inside of the tube body 8 is cleaned, most of the oil is concentrated on the kapok fiber balls 22, which is more convenient to clean.

[0040] There are still some metal debris and microbial growth in the coolant wastewater. When recycling the coolant, these substances need to be processed before entering the next recycling process.

[0041] To this end, an array of aeration components 13 is provided at the bottom of the treatment box 1 to add ozone to the coolant inside the treatment box 1. Ozone can effectively remove microorganisms and prevent the problem of microbial growth in the coolant. Secondly, a magnet ring 10 is fixed between the oil collecting hopper 4 and the treatment box 1 by a first rope body 11 and a second rope body 12. The adsorption capacity of the magnet ring 10 is used to adsorb metal particles. At the same time, the redundancy of the second rope body 12 is greater than that of the first rope body 11, so that the magnet ring 10 can move up and down with the oil collecting hopper 4. Due to the ozone filled in the aeration component 13 below, upward bubbles are continuously generated in the coolant wastewater. The movement and collapse of the bubbles can cause the first rope body 11 to swing. When the first rope body 11 swings, the magnet ring 10 can swing within a certain range inside the treatment box 1, increasing the range of movement of the magnet ring 10. When swinging, the magnet ring 10 can improve the adsorption effect of the magnet ring 10 on metal particles. A certain distance is set between adjacent magnet rings 10, so that the magnet rings 10 will not be adsorbed together during operation.

[0042] In this way, the oil, microorganisms and metal particles in the coolant wastewater are solved at the same time.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A metal processing coolant wastewater regeneration treatment system, comprising a treatment box (1), characterized in that : A guide rod (9) is vertically installed at the bottom of the processing box (1), and an oil collecting hopper (4) is connected to the upper inner portion of the processing box (1) through a driving member. A tube body (8) is provided at the bottom of the oil collecting hopper (4), and the top of the guide rod (9) extends to the inner side of the tube body (8). The oil collecting hopper (4) and the tube body (8) are connected through a feed hole (15). Exchange holes (7) are evenly opened on the outer side of the tube body (8), and a hydrophilic and oleophobic membrane (24) is provided in the exchange hole (7). A plurality of kapok fiber balls (22) are also placed at the bottom of the tube body (8); The top end of the guide rod (9) is provided with a plurality of control structures in a ring array, and the hydrophilic and oleophobic membranes (24) are cleaned and the water-oil separation in the tube body (8) is controlled by the plurality of control structures.

2. The metal processing coolant wastewater regeneration treatment system according to claim 1, characterized in that: The regulating structure includes a baffle (16), a straight rod (17) and an oil wiping cloth (19), wherein the straight rod (17) is distributed in a circular array at the circumferential position of the upper end of the guide rod (9), the baffle (16) is vertically installed at the distal end of the straight rod (17), and the baffle (16) fits the inner wall of the tube body (8), and the oil wiping cloth (19) is adhered to the lower end of one side of the baffle (16), and the baffle (16) drives the oil wiping cloth (19) to move up and down, and contacts with the hydrophilic and oleophobic film (24).

3. The metal processing coolant wastewater regeneration treatment system according to claim 2, characterized in that: A notch (20) is provided at the lower end of one side of the baffle (16), and a plurality of elastic blocks (18) are arranged from top to bottom in the notch (20), and the other side of the elastic block (18) is bonded to an oil wiping cloth (19).

4. The metal processing coolant wastewater regeneration treatment system according to claim 3, characterized in that: A plurality of groups of toggle assemblies are distributed in a ring array outside the guide rod (9) inside the tube body (8), and the toggle assemblies include a main board (21), a paddle (23) and a notch (14); The main board (21) is vertically fixed on the outside of the guide rod (9), the paddles (23) are symmetrically arranged on both sides of the main board (21), and the two paddles (23) are arranged to be inclined upward, and the notch (14) is opened through the paddles (23).

5. The metal processing coolant wastewater regeneration treatment system according to claim 1, characterized in that: The driving member comprises an electric telescopic rod (3), a connecting frame (5) and a bracket (6); the electric telescopic rod (3) is fixed to the inner upper end of the processing box (1); the connecting frame (5) is fixed to the bottom of the electric telescopic rod (3); and the bracket (6) is distributed in a ring array between the connecting frame (5) and the oil collecting hopper (4).

6. The metal processing coolant wastewater regeneration treatment system according to claim 1, characterized in that: The hydrophilic and oleophobic membrane (24) is specifically a polytetrafluoroethylene modified membrane, and the thickness of the hydrophilic and oleophobic membrane (24) matches the thickness of the exchange pore (7).

7. The metal processing coolant wastewater regeneration treatment system according to claim 1, characterized in that: An aeration assembly (13) is provided at the bottom of the treatment box (1). A plurality of aeration assemblies (13) are distributed in an array at the bottom of the treatment box (1). A strong oxidant is injected into the treatment box (1) through the plurality of aeration assemblies (13). Ozone is selected as the strong oxidant.

8. The metal processing coolant wastewater regeneration treatment system according to claim 7, characterized in that: A plurality of first rope bodies (11) are suspended at the lower end of the oil collecting hopper (4), a magnet ring (10) is fixedly bolted to the bottom of the first rope body (11), a second rope body (12) is connected between the magnet ring (10) and the bottom of the processing box (1), and the redundancy of the second rope body (12) is greater than that of the first rope body (11).

9. The metal processing coolant wastewater regeneration treatment system according to claim 8, characterized in that: The plurality of magnet rings (10) swing along with the rising bubbles, and adjacent magnet rings (10) are not affected by magnetic attraction.

10. The metal processing coolant wastewater regeneration treatment system according to claim 1, characterized in that: The upper portion of the processing box (1) is provided with an upper cover, a material feed port (2) is provided on the upper cover, and a liquid discharge port is also provided at the bottom of the processing box (1).

Images