A paint spraying wastewater recovery and treatment device

Abstract

The present invention relates to the technical field of wastewater recycling and treatment, and specifically to a paint spraying wastewater recycling and treatment device, including a box body, the interior of the box body is divided into an electrode attachment area and a collection area from top to bottom, and the electrode attachment area and the collection area are respectively provided with an electrode attachment slow flow mechanism and a collection mechanism; the electrode attachment slow flow mechanism includes a cross-shaped square tube, an electrode attachment frame, a conical confluence block and a diverter plate arranged in the electrode attachment area from top to bottom; the collection mechanism includes a plurality of conductive rods and a collection mechanism arranged in the collection area, and the collection mechanism includes a collection seat fixedly connected to the bottom of the box body, and a plurality of collection boxes are arranged in the collection seat. Through the slow flow assembly, the diverter plate and the electrode rod in the electrode attachment slow flow mechanism, the incoming wastewater can be decelerated and the heavy metal substances in the wastewater can be attached to the electrode, so that the heavy metals in the wastewater can be effectively removed, the efficiency of removing the heavy metal substances in the wastewater can be improved, and the content of the heavy metal substances in the wastewater can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater recycling and treatment, and in particular to a paint spraying wastewater recycling and treatment device. Background Art

[0002] The paint spraying wastewater recycling and treatment device is a device specially used to treat wastewater generated in the paint spraying process. It treats wastewater containing organic solvents, pigments, heavy metals, and other harmful substances through a series of physical, chemical or biological treatment processes to achieve the purpose of reducing pollutant concentrations, recycling water resources or directly purifying discharge.

[0003] An existing paint spray wastewater recycling and treatment device usually uses biological treatment (using microorganisms or plants to adsorb or biodegrade heavy metals) to remove wastewater when treating heavy metals in paint spray wastewater (this device is a device for treating heavy metals in paint spray wastewater). However, the biological wastewater treatment method cannot effectively classify and extract heavy metals in wastewater (heavy metals in wastewater usually include: cadmium (Cd), mercury (Hg), chromium (Cr), nickel (Ni), etc.), so it is impossible to reuse heavy metals in wastewater;

[0004] At the same time, the rate of biological treatment will be affected by the type and concentration of heavy metals, environmental conditions (such as temperature, pH value), and wastewater composition (such as organic matter concentration), resulting in inconsistent biological treatment rates. Inconsistent treatment rates will cause uneven residence time of wastewater in biological treatment equipment, resulting in insufficient contact time between wastewater and microorganisms, which will lead to failure to achieve the expected heavy metal treatment effect, resulting in non-compliance with emission standards or reduced treatment effects. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a paint spraying wastewater recovery and treatment device, which can effectively solve the problem that the prior art cannot realize the reuse of heavy metals in wastewater and the emission standards do not meet the standards.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a paint spraying wastewater recovery and treatment device, comprising:

[0008] A box body, wherein the interior of the box body is divided into a pole attachment area and a collection area from top to bottom, wherein the pole attachment area and the collection area are respectively provided with a pole attachment slow flow mechanism and a collection mechanism;

[0009] The electrode-attached slow-flow mechanism comprises a cross-shaped square tube, an electrode-attached frame, a conical collector block and a diverter plate which are sequentially arranged in the electrode-attached area from top to bottom. The inner wall of the cross-shaped square tube is horizontally arrayed and rotatably connected with a plurality of rotating shafts. Two slow-flow components are symmetrically arranged on the outer circumference of the rotating shaft. At least two electrode rods are arranged in the electrode-attached frame.

[0010] The collection mechanism includes a plurality of conductive rods arranged in the collection area, a plurality of attachment boxes are arranged at the bottom of each conductive rod, a plurality of convergence covers and a plurality of isolation rods are arranged on the inner and outer walls of the attachment boxes respectively, an electrode ball is arranged inside the attachment box, and the electrode ball contains a current opposite to that of the electrode rod;

[0011] The collecting mechanism comprises a collecting seat fixedly connected to the bottom of the box body, and a plurality of collecting boxes are arranged in the collecting seat.

[0012] Preferably, a three-position two-way water injection valve is fixedly connected to the central position of the top of the box body, and the three-position two-way water injection valve has two water inlet ends and one water outlet end, and one of the water inlet ends of the three-position two-way water injection valve is fixedly connected to a water inlet pipe, and a plurality of potential controllers are fixedly connected to the side of the box body, and each potential controller is electrically connected to the power supply of the equipment, the potential controllers correspond one-to-one to the position and number of the conduction rods, and the potential controllers pass through the box body and are fixedly connected to the conduction rods.

[0013] Preferably, the slow flow assembly includes two discs symmetrically fixedly connected to the outer circumferential surface of the rotating shaft, at least two partitions are fixedly connected to the opposite surfaces of the two discs in a circular array, at least two chain rods are fixedly connected to the opposite surfaces of the two discs in a circular array, and the partitions and the chain rods are alternately arranged on the opposite surfaces of the two discs.

[0014] Preferably, the cross-shaped square tube is fixedly connected to the top of the box body, and the center position of the top of the cross-shaped square tube is fixedly connected with an input pipe, and one end of the input pipe away from the cross-shaped square tube is fixedly connected to the water outlet end of the three-position two-way valve for water injection, and the inner circumference of the input pipe is fixedly connected with a fixing rod, and the outer circumference of the fixing rod located at the center position of the input pipe is fixedly connected with an electrical sensor, and the auxiliary pole frame is fixedly connected to the inner walls around the box body, and the auxiliary pole frame is a hollow structure, the auxiliary pole frame corresponds to the position of the cross-shaped square tube, and the side of the auxiliary pole frame away from the inner wall of the box body is fixedly connected with the four ports of the cross-shaped square tube, at least two of the electrode rods are fixedly connected to the inside of the auxiliary pole frame, and a plurality of discharge holes are provided on the side of the auxiliary pole frame facing the conical bus block.

[0015] Preferably, the conical bus block is fixedly connected to the inner wall of the box body and is located under the pole frame, a plurality of barrier rods with gradually decreasing lengths are fixedly connected to the inner walls around the conical bus block, an annular groove is opened at the bottom of the conical bus block, a spiral ring is fixedly connected to the inner wall of the annular groove, and more diverter balls are connected to the inner wall of the ring mouth at the center of the spiral ring, the diverter plate is fixedly connected to the inner wall of the box body and is located under the conical bus block, a plurality of gradually increasing convex disks are fixedly connected to the top of the diverter plate, the convex disks correspond to the spiral ring positions, a plurality of dividing rods are fixedly connected to the top of the diverter plate in a circular array with the convex disk as the center, and a plurality of holes are opened in the area formed by two adjacent dividing rods at the top of the diverter plate.

[0016] Preferably, a plurality of the conductive rods are fixedly connected to the inner wall of the box body in a horizontal array and are located under the diverter plate, a plurality of elastic rods are fixedly connected to the outer peripheral surface of the conductive rod facing the collecting mechanism in a horizontal array, the attachment box is fixedly connected to the end of the elastic rod away from the conductive rod, the elastic rod is internally slidably sleeved with a telescopic wire electrically connected to the conductive rod, the electrode ball is electrically connected to the end of the telescopic wire away from the conductive rod and is fixedly connected to the end of the telescopic wire away from the conductive rod, a plurality of the converging covers are fixedly connected to the inner wall of the attachment box in a vertical array, a plurality of the isolation rods are fixedly connected to the outer wall of the attachment box in a vertical array, the arc surface of each converging cover away from the inner wall of the attachment box is fixedly connected to a plurality of interconnected rods in a horizontal array, the width formed by two adjacent isolation rods corresponds to the width of the converging cover, a plurality of electrode rods are fixedly connected to the outer spherical annular array of the electrode ball, the number and position of the electrode rods correspond one-to-one to the converging cover, and the end of the electrode rod away from the electrode ball is fixedly connected to the converging cover.

[0017] Preferably, a plurality of groups of collecting grooves are provided on the side of the collecting seat facing the box body, and each group of the collecting grooves corresponds one-to-one to the number and position of the attached boxes. A slide groove corresponding to the number and position of the collecting grooves is provided in the middle of the collecting seat. A plurality of connecting grooves are provided around the inner wall of the collecting groove, and each of the connecting grooves is connected to the slide groove. The collecting box is slidably connected to the inside of the slide groove, and electrostatic rods are fixedly connected to the inner walls of both sides of the collecting box, and a magnet is fixedly connected to the inner bottom of the collecting box.

[0018] Preferably, a water pump is fixedly connected to the top of the collecting seat, and the water inlet end of the water pump is fixedly connected to a water suction pipe, and the end of the water suction pipe away from the water pump is fixedly connected to the box body, and the water outlet end of the water pump is fixedly connected to a three-position two-way valve for drainage, and the three-position two-way valve for drainage has two water outlet ends and one water inlet end, the water inlet end of the three-position two-way valve for drainage is connected to the water pump, and the two water outlet ends are fixedly connected to the drain pipe and the return pipe respectively, and the end of the return pipe away from the water outlet end of the three-position two-way valve for drainage is fixedly connected to the other water inlet end of the three-position two-way valve for water injection.

[0019] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] 1. The paint spray wastewater recovery and treatment device can achieve the effect of slowing down the incoming wastewater and attaching the heavy metal substances in the wastewater to the electrode through the slow flow component, the diverter plate and the electrode rod in the electrode slow flow mechanism. Among them, the slow flow component slows down the wastewater that has just entered the equipment, thereby achieving the effect of slow flow, and the wastewater after slow flow can contact the electrode rod more evenly. At the same time, when the wastewater contacts the electrode rod, the electrode will attach the heavy metal substances in the wastewater to the electrode (electrochemical treatment), so that the heavy metal substances will be reduced or oxidized to form a solid condensed state, thereby effectively removing the heavy metals in the wastewater, improving the efficiency of removing the heavy metal substances in the wastewater, and reducing the content of heavy metal substances in the wastewater.

[0021] 2. The paint spray wastewater recovery and treatment device can adsorb heavy metal substances in a solid condensed state through the attachment box and electrode balls in the collection mechanism, thereby achieving the effect of removing heavy metal substances. Among them, the electrode ball contains an electric current opposite to that of the electrode rod, and the electrode rods of different types of heavy metal substances have different effects on them, thereby forming corresponding magnetism according to the surface of the attachment box, thereby achieving the purpose of classified collection of heavy metal substances in a solid condensed state. Through classified collection, the reuse rate of metal substances is improved, the diversity and richness of metal substance extraction are enhanced, and the collection rate of heavy metal substances in the wastewater environment is reduced.

[0022] 3. The paint spray wastewater recovery and treatment device can collect the heavy metal substances collected in the collection mechanism through the collection seat and the collection box in the collection mechanism, thereby avoiding excessive heavy metal substances adhering to the collection mechanism and affecting the collection effect of the collection mechanism on the heavy metal substances. The heavy metal substances collected in the collection mechanism will be collected by the collection box, thereby improving the utilization rate of the heavy metal substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the present invention as a whole from a top view;

[0026] Figure 3It is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure inside the cross-shaped diverter plate of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the pole frame of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the conical manifold of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the diverter plate of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure inside the collection mechanism of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the collecting seat of the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the collecting box of the present invention.

[0034] Reference numerals: 1, box body; 11, three-position two-way valve for water injection; 12, water inlet pipe; 13, potential control;

[0035] 2. Attached pole slow-flow mechanism; 21. Cross-shaped square tube; 22. Rotating shaft; 23. Slow-flow assembly; 231. Disc; 232. Partition plate; 233. Chain rod; 24. Input pipe; 241. Fixed rod; 25. Electrical sensor; 26. Attached pole frame; 261. Discharge hole; 27. Electrode rod; 28. Conical manifold; 281. Blocking rod; 282. Spiral ring; 283. Diverter ball; 29. ​​Diverter plate; 291. Lug; 292. Divider rod; 293. Hole;

[0036] 3. Collection mechanism; 31. Conducting rod; 32. Elastic rod; 321. Telescopic wire; 33. Attachment box; 331. Isolation rod; 34. Converging cover; 341. Interconnection rod; 35. Electrode ball; 351. Electrode rod;

[0037] 4. Collection mechanism; 41. Collection seat; 42. Collection tank; 421. Communication tank; 43. Collection box; 44. Electrostatic rod; 45. Magnet;

[0038] 5. Water pump; 51. Suction pipe; 52. Three-position two-way valve for drainage; 53. Drain pipe; 54. Return pipe. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The present invention will be further described below in conjunction with the embodiments.

[0041] Example: Refer to Figures 1 to 10 , a paint spraying wastewater recovery and treatment device, comprising:

[0042] Box body 1, the interior of box body 1 is divided into an electrode attachment area and a collection area from top to bottom, and an electrode attachment slow flow mechanism 2 and a collection mechanism 3 are respectively arranged in the electrode attachment area and the collection area;

[0043] The electrode-attached slow-flow mechanism 2 comprises a cross-shaped square tube 21, an electrode-attached frame 26, a conical manifold block 28 and a diverter plate 29 arranged in sequence from top to bottom in the electrode-attached area. The inner wall of the cross-shaped square tube 21 is horizontally arrayed and rotatably connected with a plurality of rotating shafts 22. Two slow-flow components 23 are symmetrically arranged on the outer circumference of the rotating shaft 22. At least two electrode rods 27 are arranged in the electrode-attached frame 26.

[0044] The collection mechanism 3 includes a plurality of conductive rods 31 arranged in the collection area, a plurality of attachment boxes 33 are arranged at the bottom of each conductive rod 31, a plurality of convergence covers 34 and a plurality of isolation rods 331 are arranged on the inner and outer walls of the attachment box 33, an electrode ball 35 is arranged inside the attachment box 33, and the electrode ball 35 contains a current opposite to that of the electrode rod 27;

[0045] The collecting mechanism 4 comprises a collecting seat 41 fixedly connected to the bottom of the box body 1 , and a plurality of collecting boxes 43 are arranged in the collecting seat 41 .

[0046] The electrode slow-flow mechanism 2 is used to slow the flow of the paint wastewater entering the box 1 and to reduce or oxidize the heavy metal substances in the wastewater. At the same time, after the reduction or oxidation reaction, the heavy metal substances in a solid condensed state will have magnetism under the influence of the electrode rod 27, and the electrode balls 35 in the collection mechanism 3 will form magnetism corresponding to the heavy metal substances on the attachment box 33, thereby achieving the collection of heavy metal substances in a solid condensed state. The collection mechanism 4 can prevent the collection of heavy metal substances in a solid condensed state from being separated from the attachment box 33, and store the separated heavy metal substances in the collection box 43, thereby avoiding excessive attachment of heavy metal substances to the surface of the attachment box 33, thereby reducing the collection rate of the attachment box 33.

[0047] Reference Figure 1 to Figure 2A three-position two-way valve 11 for water injection is fixedly connected to the central position of the top of the box 1. The three-position two-way valve 11 for water injection has two water inlet ends and one water outlet end. One of the water inlet ends of the three-position two-way valve 11 for water injection is fixedly connected to a water inlet pipe 12. A plurality of potential controllers 13 are fixedly connected to the side of the box 1, and each potential controller 13 is electrically connected to the power supply of the equipment. The potential controllers 13 correspond to the positions and numbers of the conductive rods 31 one by one, and the potential controllers 13 penetrate the box 1 and are fixedly connected to the conductive rods 31.

[0048] The three-position two-way valve 11 for water injection can realize the conversion of the wastewater entering the polar area in the box body 1, thereby realizing the recycling and treatment of the wastewater.

[0049] Reference Figures 3 to 5 The slow flow component 23 includes two discs 231 symmetrically fixedly connected to the outer peripheral surface of the rotating shaft 22, at least two partitions 232 are fixedly connected to the opposite surfaces of the two discs 231 in a circular array, at least two chain rods 233 are fixedly connected to the opposite surfaces of the two discs 231 in a circular array, and the partitions 232 and the chain rods 233 are alternately arranged on the opposite surfaces of the two discs 231.

[0050] The cross-shaped square tube 21 is fixedly connected to the top of the box body 1, and the center position of the top of the cross-shaped square tube 21 is fixedly connected with an input pipe 24, and one end of the input pipe 24 away from the cross-shaped square tube 21 is fixedly connected to the water outlet end of the three-position two-way valve 11 for water injection, and the inner circumference of the input pipe 24 is fixedly connected with a fixed rod 241, and the outer circumference of the fixed rod 241 located at the center position of the input pipe 24 is fixedly connected with an electrical sensor 25, and the auxiliary pole frame 26 is fixedly connected to the inner wall around the box body 1, and the auxiliary pole frame 26 is a hollow structure, the auxiliary pole frame 26 corresponds to the position of the cross-shaped square tube 21, and the side of the auxiliary pole frame 26 away from the inner wall of the box body 1 is fixedly connected to the four ports of the cross-shaped square tube 21, at least two electrode rods 27 are fixedly connected to the inside of the auxiliary pole frame 26, and a plurality of discharge holes 261 are provided on the side of the auxiliary pole frame 26 facing the conical bus block 28.

[0051] By using the cross-shaped square tube 21 and the slow-flow component 23, the wastewater flow entering the electrode frame 26 can be slowed down and diverted, thereby preventing a large amount of wastewater from gathering together, which will result in the electrode rod 27 being unable to completely reduce or oxidize the heavy metal substances in the wastewater and attach magnets, thereby affecting the collection effect of the collection mechanism 3 on the heavy metal substances.

[0052] Reference Figure 6 to Figure 7The conical confluence block 28 is fixedly connected to the inner wall of the box body 1 and is located under the pole frame 26. The inner walls around the conical confluence block 28 are fixedly connected with a plurality of barrier rods 281 of gradually decreasing length. An annular groove is provided at the bottom of the conical confluence block 28. A spiral ring 282 is fixedly connected to the inner wall of the annular groove. The inner wall of the ring mouth at the center of the spiral ring 282 is more connected with diverter balls 283. The diverter plate 29 is fixedly connected to the inner wall of the box body 1 and is located under the conical confluence block 28. A plurality of gradually increasing convex discs 291 are fixedly connected to the top of the diverter plate 29. The positions of the convex discs 291 and the spiral rings 282 correspond. A plurality of dividing rods 292 are fixedly connected to the top of the diverter plate 29 in a circular array with the convex disc 291 as the center. A plurality of holes 293 are provided in the area formed by two adjacent dividing rods 292 at the top of the diverter plate 29.

[0053] The wastewater can be converged by using the conical confluence block 28 and the spiral ring 282, so that the heavy metal substances after the reduction or oxidation reaction can be more evenly distributed in the wastewater and evenly transported to the collection area through the diverter plate 29.

[0054] Reference Figures 8 to 9 A plurality of conductive rods 31 are fixedly connected to the inner wall of the box body 1 in a horizontal array and are located below the diverter plate 29. A plurality of elastic rods 32 are fixedly connected to the outer peripheral surface of the conductive rod 31 facing the collecting mechanism 4 in a horizontal array. An attachment box 33 is fixedly connected to the end of the elastic rod 32 away from the conductive rod 31. A telescopic wire 321 electrically connected to the conductive rod 31 is slidably sleeved inside the elastic rod 32. An electrode ball 35 is electrically connected to the end of the telescopic wire 321 away from the conductive rod 31 and is fixedly connected to the end of the telescopic wire 321 away from the conductive rod 31. A plurality of converging covers 34 are vertically arrayed. The columns are fixedly connected around the inner wall of the attachment box 33, a plurality of isolation rods 331 are fixed in a vertical array around the outer wall of the attachment box 33, and the arc surface of each converging cover 34 away from the inner wall of the attachment box 33 is fixedly connected to a plurality of interconnected rods 341 in a horizontal array. The width formed by two adjacent isolation rods 331 corresponds to the width of the converging cover 34. The outer spherical annular array of the electrode ball 35 is fixedly connected to a plurality of electrode rods 351. The number and position of the electrode rods 351 correspond one to one with the converging cover 34. The end of the electrode rod 351 away from the electrode ball 35 is fixedly connected to the converging cover 34.

[0055] The conductive rod 31 can generate different electrodes for the electrode ball 35 according to the current provided by the potential controller 13, and the different electrodes of the electrode ball 35 can generate different magnetism on the surface of the attachment box 33, thereby achieving the collection of different types of heavy metal substances.

[0056] Reference Fig.10A plurality of collection slots 42 are provided on the side of the collecting seat 41 facing the box body 1, and each group of collection slots 42 corresponds to the number and position of the attachment box 33. A slide slot corresponding to the number and position of the collection slots 42 is provided in the middle of the collecting seat 41. A plurality of connecting slots 421 are provided around the inner wall of the collecting slot 42, and each connecting slot 421 is connected to the slide slot. The collecting box 43 is slidably connected to the inside of the slide slot, and the inner walls on both sides of the collecting box 43 are fixedly connected with electrostatic rods 44, and the inner bottom of the collecting box 43 is fixedly connected with a magnet 45.

[0057] The collecting seat 41 and the collecting box 43 can be used to remove heavy metal substances attached to the surface of the attachment box 33, thereby avoiding a large amount of accumulation of heavy metal substances on the surface of the attachment box 33, which will lead to a decrease in the collection rate of metal substances in the wastewater by the attachment box 33. The collecting box 43 can collect the heavy metal substances collected in the attachment box 33, thereby achieving the purpose of reusing the heavy metal substances.

[0058] Reference Figures 1 to 10 A water pump 5 is fixedly connected to the top of the collecting seat 41, and a water inlet end of the water pump 5 is fixedly connected to a water suction pipe 51, and one end of the water suction pipe 51 away from the water pump 5 is fixedly connected to the box body 1, and a water outlet end of the water pump 5 is fixedly connected to a three-position two-way valve 52 for drainage. The three-position two-way valve 52 for drainage has two water outlet ends and one water inlet end. The water inlet end of the three-position two-way valve 52 for drainage is connected to the water pump 5, and the two water outlet ends are fixedly connected to a drainage pipe 53 and a return pipe 54 respectively, and one end of the return pipe 54 away from the water outlet end of the three-position two-way valve 52 for drainage is fixedly connected to the other water inlet end of the three-position two-way valve 11 for water injection.

[0059] The water pump 5 can be used to absorb the treated wastewater in the box 1, and the three-position two-way valve 52 for drainage can be controlled according to the detection result of the electrical sensor 25. The three-position two-way valve 52 for drainage can realize the operation of recycling and discharging the wastewater into the next step according to the signal transmitted by the electrical sensor 25.

[0060] The operating principle of this embodiment is as follows:

[0061] Step 1: First, the paint spraying wastewater is introduced into the casing 1 through the water inlet pipe 12 (the wastewater introduced into the casing 1 has other treatment steps before, and the present device is a device for treating heavy metals in the wastewater in the paint spraying wastewater treatment system). At this time, the port connecting the water injection three-position two-way valve 11 and the water inlet pipe 12 is opened (the port of the water injection three-position two-way valve 11 and the return pipe 54 is closed), so that the wastewater transported through the water inlet pipe 12 is transferred to the input pipe 24 through the water injection three-position two-way valve 11, and the input pipe 24 is provided with an electrical sensor 25, and the content of heavy metals in the wastewater can be detected by the electrical sensor 25 (the electrical sensor 25 can detect the content of heavy metals because the electrodes commonly used in the electrical sensor 25 (such as working electrodes and reference electrodes) can be connected with the Heavy metal ions undergo specific electrochemical reactions, which will produce current or potential changes, and this change is related to the content of heavy metals), thereby controlling the water pump 5 and the three-position two-way valve 52 for drainage to recycle the heavy metals in the wastewater, and the wastewater passing through the input pipe 24 will enter the cross-shaped square tube 21. The cross-shaped square tube 21 can divide the wastewater transported by the input pipe 24 into four parts, and transport the wastewater divided into four parts to the attached electrode frame 26. During the transportation of the wastewater by the cross-shaped square tube 21, the slow flow component 23 will be driven to rotate. As the slow flow component 23 rotates, it can help improve the stability and uniformity of the flow of wastewater in the cross-shaped square tube 21, thereby avoiding water hammer due to uneven flow velocity, thereby affecting the flow of wastewater in the attached electrode frame 26.

[0062] Among them, the electrode rod 27 in the electrode attachment frame 26 (the electrode has any one of positive and negative electrodes) is used to attach the heavy metal in the transported wastewater to the electrode (electrochemical treatment), so that the heavy metal substance is reduced or oxidized to form a solid condensed state. At this time, the heavy metal in the solid condensed state itself is not magnetic (the heavy metal in the solid condensed state is hereinafter referred to as heavy metal substance), and there are two electrode rods 27 in the electrode attachment frame 26, so one of the electrode rods 27 is used to reduce or oxidize the heavy metal to form heavy metal substance, and the other electrode rod 27 is used to magnetize the heavy metal substance. The reason why the electrode rod 27 can magnetize the heavy metal substance is that the electrode transported by the electrode rod 27 forms a uniform and dense coating on the metal surface or changes the surface of the metal through the action of electric current and electrolyte (the electrolyte is assumed to have been added in the previous process of treating the wastewater material). The surface properties are determined, and then the magnetization treatment of heavy metal substances is achieved through electrochemical reactions. The types of heavy metals in wastewater are often different. Common heavy metals in wastewater usually contain: cadmium (Cd), mercury (Hg), chromium (Cr), nickel (Ni), etc. Different types of heavy metals have their own standard electrode potentials, which refers to the potential difference between the metal ions and the hydrogen ions on the electrode under standard conditions. The standard electrode potential of the metal determines their electrochemical reaction trends under specific conditions, which leads to the inconsistent degree of reduction or oxidation of heavy metal substances by the electrode rod 27 for different types of heavy metals, and then leads to the different types of heavy metal substances When magnetized, the magnetization degree of different types of heavy metal substances is also inconsistent (strong magnetization has strong magnetism, and weak magnetization has weak magnetism), so as to achieve the purpose of distinguishing different types of heavy metals in wastewater according to the size of the magnetism.

[0063] Among them, after the attached pole frame 26 completes the treatment of heavy metals in the wastewater, the wastewater will enter the conical confluence block 28 through the discharge hole 261. The conical confluence block 28 can gather the wastewater discharged from the attached pole frame 26. At the same time, in order to avoid congestion of the wastewater in the conical confluence block 28 during the convergence process, a blocking rod 281 is set in the conical confluence block 28, so as to reduce the flow speed of the wastewater in the conical confluence block 28, and discharge the wastewater in the conical confluence block 28 into the diverter plate 29 through the spiral ring 282, because the spiral ring 282 can make the water flow more stable and evenly discharged into the diverter plate 29. When the wastewater enters the diverter plate 29, it will first pass through the equal distribution operation of the convex plate 291 and the dividing rod 292, so that the wastewater can be evenly distributed in the area formed by the dividing rod 292, and it is evenly discharged into the collection area through the holes 293 in the area.

[0064] Step 2: When wastewater enters the collection area through the hole 293, the potential control 13 will transmit the corresponding voltage electrode in the corresponding conductive rod 31 according to the magnetization degree of different types of heavy metal substances (the electrode transmitted at this time is opposite to the electrode in the electrode rod 27). The conductive rod 31 has an inner and outer layer. The electrode is mainly transmitted through the inner layer, and the outer layer is an insulating layer. The attachment box 33 is fixed in the conductive rod 31 through the elastic rod 32, and the conductive rod 31 is connected to the electrode ball 35 through the telescopic wire 321 (the telescopic wire 321 is connected to the inner layer of the conductive rod 31), thereby realizing The electrode in the conductive rod 31 is now transferred to the electrode ball 35, and the electrode ball 35 is mainly composed of a conductive polymer (such as polythiophene (PPy), polyaniline (PANI), etc., which can temporarily store electrodes in a doped state). The electrode ball 35 transmits the electrode to the convergence cover 34 through the electrode rod 351 and the interconnection rod 341, and the convergence cover 34 can help control the distribution of the electrode in the attachment box 33, which can improve the uniformity and directionality of the magnetic field, thereby improving the magnetization effect of the attachment box 33 (the reason why the electrode can magnetize the attachment box 33 is the same as above).

[0065] Among them, as the attachment box 33 completes magnetization, heavy metal substances with corresponding magnetization effects will be attracted (to achieve classification of heavy metal substances), because the magnetic field of the magnetization of the attachment box 33 is opposite to the magnetic field of the magnetization of the heavy metal substances. According to the rule of magnetic pole attraction and repulsion, the South Pole will attract the North Pole and repel the magnetic pole of the same polarity. Therefore, when the polarities of the two magnets are opposite, they will attract each other, causing the same heavy metal substance to gather in the attachment box 33. As more and more heavy metal substances gather on the surface of the attachment box 33, the weight of the attachment box 33 will continue to increase, causing the elastic rod 32 to stretch. As the elastic rod 32 stretches, the telescopic wire 321 also stops transmitting the electrode to the electrode ball 35. At this time, only the electrode temporarily stored in the electrode ball 35 can maintain the magnetization of the attachment box 33. As the attachment box 33 continues to descend, the attachment box 33 will overlap with the collection slot 42 at the corresponding position in the collection seat 41. When the attachment box 33 overlaps with the collection slot 42, the electrode stored in the electrode ball 35 in the attachment box 33 is almost exhausted. The electrodes stored in the ball 35 are exhausted, and the magnetization effect on the surface of the attachment box 33 is gradually reduced, thereby preventing the heavy metal substances from detaching from the attachment box 33. As the heavy metal substances detach, the collection box 43 located at the bottom of the collection tank 42 collects the detached heavy metal substances into the collection box 43 through the connecting groove 421. The collection box 43 can complete the collection of heavy metal substances because the collection box 43 is provided with an electrostatic rod 44 and a magnet 45 (the magnetic poles of the magnet 45 are opposite to the magnetic poles of the heavy metal substances). The electrostatic rod 44 and the magnet 45 are used together to increase the collection efficiency and comprehensiveness. In this way, it can ensure a more comprehensive collection of target metal particles, improve processing efficiency and accuracy, and thus achieve classification and collection of heavy metal substances.

[0066] Among them, as the heavy metal substances on the surface of the attachment box 33 are completely detached, the attachment box 33 recovers its original weight. At this time, the stretched elastic rod 32 will rebound, so that the attachment box 33 returns to its initial position. As the attachment box 33 returns to its initial position, the telescopic wire 321 resumes transmitting the electrode to the electrode ball 35.

[0067] Step 3: After completing the removal of the heavy metal substances in the box body 1, the water pump 5 absorbs the wastewater in the box body 1 through the suction pipe 51. At this time, the water pump 5 introduces the wastewater into the drain pipe 53 through the three-position two-way valve 52 for drainage, and then introduces the water into the three-position two-way valve 11 for injection through the drain pipe 53. The three-position two-way valve 11 for injection then re-transports the wastewater to the box body 1 through the input pipe 24, so that the wastewater goes through the first and second steps again. When the wastewater passes through the input pipe 24, the electrical sensor 25 in the input pipe 24 will detect the content of heavy metal substances in the wastewater, so as to determine how many times the wastewater needs to be recycled and the step of removing heavy metal substances. When the electrical sensor 25 determines that the heavy metal content of the wastewater has reached the standard emission value, the recycling operation is terminated, and the wastewater is discharged through the drain pipe 53 to enter the next processing step.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A paint spraying wastewater recovery and treatment device, characterized in that: include: A box body (1), wherein the interior of the box body (1) is divided into an electrode attachment area and a collection area from top to bottom, wherein the electrode attachment area and the collection area are respectively provided with an electrode attachment slow flow mechanism (2) and a collection mechanism (3); The electrode-attached slow-flow mechanism (2) comprises a cross-shaped square tube (21), an electrode-attached frame (26), a conical collector block (28) and a diverter plate (29) which are arranged in sequence from top to bottom in the electrode-attached region; the inner wall of the cross-shaped square tube (21) is rotatably connected to a plurality of rotating shafts (22) in a horizontal array; two slow-flow components (23) are symmetrically arranged on the outer circumference of the rotating shaft (22); and at least two electrode rods (27) are arranged in the electrode-attached frame (26); The collection mechanism (3) comprises a plurality of conductive rods (31) arranged in a collection area, a plurality of attachment boxes (33) being arranged at the bottom of each conductive rod (31), a plurality of convergence covers (34) and a plurality of isolation rods (331) being arranged on the inner and outer walls of the attachment boxes (33), an electrode ball (35) being arranged inside the attachment box (33), and the electrode ball (35) contains a current opposite to that of the electrode rod (27); A collecting mechanism (4), the collecting mechanism (4) comprising a collecting seat (41) fixedly connected to the bottom of the box body (1), wherein a plurality of collecting boxes (43) are arranged in the collecting seat (41).

2. A paint spraying wastewater recovery and treatment device according to claim 1, characterized in that: A three-position two-way water injection valve (11) is fixedly connected to the central position of the top of the box (1), the three-position two-way water injection valve (11) having two water inlet ends and one water outlet end, one of the water inlet ends of the three-position two-way water injection valve (11) being fixedly connected to a water inlet pipe (12), a plurality of potential controllers (13) are fixedly connected to the side of the box (1), and each potential controller (13) is electrically connected to a power supply of the equipment, the potential controllers (13) correspond to the conductive rods (31) in position and number, and the potential controllers (13) penetrate the box (1) and are fixedly connected to the conductive rods (31).

3. A paint spraying wastewater recovery and treatment device according to claim 1, characterized in that: The slow flow component (23) comprises two disks (231) symmetrically fixedly connected to the outer peripheral surface of the rotating shaft (22); at least two partitions (232) are fixedly connected in an annular array to the opposite surfaces of the two disks (231); at least two chain rods (233) are fixedly connected in an annular array to the opposite surfaces of the two disks (231); and the partitions (232) and the chain rods (233) are alternately arranged on the opposite surfaces of the two disks (231).

4. A paint spraying wastewater recovery and treatment device according to claim 3, characterized in that: The cross-shaped square tube (21) is fixedly connected to the top of the box body (1); the center position of the top of the cross-shaped square tube (21) is fixedly connected to an input tube (24); one end of the input tube (24) away from the cross-shaped square tube (21) is fixedly connected to the water outlet end of the three-position two-way valve (11) for water injection; the inner circumference of the input tube (24) is fixedly connected to a fixed rod (241); the outer circumference of the fixed rod (241) located at the center position of the input tube (24) is fixedly connected to an electrical sensor (25); ), the auxiliary pole frame (26) is fixedly connected to the inner walls around the box body (1), and the auxiliary pole frame (26) is a hollow structure, the auxiliary pole frame (26) corresponds to the position of the cross-shaped square tube (21), and the side of the auxiliary pole frame (26) away from the inner wall of the box body (1) is fixedly connected to the four ports of the cross-shaped square tube (21), at least two of the electrode rods (27) are fixedly connected to the inside of the auxiliary pole frame (26), and a plurality of discharge holes (261) are opened on the side of the auxiliary pole frame (26) facing the conical bus block (28).

5. A paint spraying wastewater recovery and treatment device according to claim 4, characterized in that: The conical collector block (28) is fixedly connected to the inner wall of the box body (1) and is located below the attached pole frame (26). The inner walls around the conical collector block (28) are fixedly connected to a plurality of barrier rods (281) of gradually decreasing length. The bottom of the conical collector block (28) is provided with an annular groove. The inner wall of the annular groove is fixedly connected to a spiral ring (282). The inner wall of the ring opening at the center of the spiral ring (282) is connected to a diverter ball (283). The diverter plate (29) is fixedly connected to the inner wall of the ring opening. On the inner wall of the box body (1), and below the conical manifold block (28), a plurality of gradually increasing convex discs (291) are fixedly connected to the top of the diverter plate (29), the convex discs (291) corresponding to the positions of the spiral rings (282), a plurality of partition rods (292) are fixedly connected to the top of the diverter plate (29) in a circular array with the convex disc (291) as the center, and a plurality of holes (293) are opened in an area formed by two adjacent partition rods (292) at the top of the diverter plate (29).

6. A paint spraying wastewater recovery and treatment device according to claim 1, characterized in that: A plurality of the conductive rods (31) are fixedly connected to the inner wall of the box body (1) in a horizontal array and are located below the diverter plate (29); a plurality of elastic rods (32) are fixedly connected to the outer peripheral surface of the conductive rod (31) facing the collecting mechanism (4) in a horizontal array; the attachment box (33) is fixedly connected to the end of the elastic rod (32) away from the conductive rod (31); a telescopic wire (321) electrically connected to the conductive rod (31) is slidably sleeved inside the elastic rod (32); an end of the telescopic wire (321) electrically connected to the conductive rod (31) is fixedly connected to the end of the telescopic wire (321) away from the conductive rod (31); a plurality of the converging covers (34) are fixedly connected to the conductive rod (31); A vertical array is fixedly connected around the inner wall of the attachment box (33); a plurality of the isolation rods (331) are vertically arrayed and fixedly connected around the outer wall of the attachment box (33); the arc surfaces of the convergence covers (34) away from the inner wall of the attachment box (33) are commonly horizontally arrayed and fixedly connected to a plurality of interconnection rods (341); the width formed by two adjacent isolation rods (331) corresponds to the width of the convergence cover (34); the outer spherical annular array of the electrode ball (35) is fixedly connected to a plurality of electrode rods (351); the number and position of the electrode rods (351) correspond one-to-one to the convergence cover (34); and one end of the electrode rod (351) away from the electrode ball (35) is fixedly connected to the convergence cover (34).

7. A paint spraying wastewater recycling and treatment device according to claim 2, characterized in that: A plurality of groups of collecting slots (42) are provided on a side of the collecting seat (41) facing the box body (1), and the number and position of each group of the collecting slots (42) correspond to the number and position of the attachment box (33). A slide slot corresponding to the number and position of the collecting slots (42) is provided in the middle of the collecting seat (41). A plurality of connecting slots (421) are provided around the inner wall of the collecting slot (42), and each of the connecting slots (421) is connected to the slide slot. The collecting box (43) is slidably connected to the inside of the slide slot. The inner walls of both sides of the collecting box (43) are fixedly connected to electrostatic rods (44), and the inner bottom of the collecting box (43) is fixedly connected to a magnet (45).

8. A paint spraying wastewater recovery and treatment device according to claim 7, characterized in that: A water pump (5) is fixedly connected to the top of the collecting seat (41); a water inlet end of the water pump (5) is fixedly connected to a water suction pipe (51); one end of the water suction pipe (51) away from the water pump (5) is fixedly connected to the casing (1); a water outlet end of the water pump (5) is fixedly connected to a three-position two-way valve (52) for drainage; the three-position two-way valve (52) for drainage has two water outlet ends and one water inlet end; the water inlet end of the three-position two-way valve (52) for drainage is connected to the water pump (5), and the two water outlet ends are fixedly connected to a drainage pipe (53) and a return pipe (54) respectively; one end of the return pipe (54) away from the water outlet end of the three-position two-way valve (52) for drainage is fixedly connected to the other water inlet end of the three-position two-way valve (11) for water injection.

Images