Electrophoretic paint wastewater recovery treatment device and equipment

Abstract

The present application relates to wastewater treatment technical field, disclose a kind of electrophoretic paint wastewater recovery processing device and equipment, including reaction tank, reaction tank is provided with liquid inlet and reagent feeding port, stirring assembly, liquid outlet, liquid outlet is provided with control valve, and liquid outlet is connected with filter device;Filter device includes rack, rack is fixedly connected with water pipe, the side of water pipe is located below liquid outlet and is provided with water inlet gap, water pipe is coaxially provided with mounting plate on the two sides of water inlet gap, annular array is provided with a plurality of support partition plates between mounting plate, the side of a plurality of support partition plates mutually close is fixedly connected with a circle filter screen, the outer circle of support partition plate between two mounting plates is provided with protective plate, the upper end of protective plate is provided with connecting port, connecting port is connected with liquid outlet, the lower of protective plate is provided with waste outlet, and mounting plate is connected with power component that drives its rotation.This application can effectively treat filter material, avoid filter material accumulation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to an electrophoretic paint wastewater recycling device and equipment. BACKGROUND

[0002] The particles of electricity move to the opposite pole under the action of the electric field, which is called electrophoresis. Electrophoretic coating is a coating method that uses the principle of electrophoresis. The particles of pigment and resin suspended in the electrophoretic fluid move in a certain direction under the action of an external electric field, thereby achieving the purpose of coating. In recent years, electrophoretic coating technology has been widely used in the automobile, building material, hardware, and home appliance industries. During the electrophoretic coating process, some wastewater is generated, mainly from pre-washing drainage, oil and rust removal sludge, and cleaning drainage. The main components include water-soluble resin, pigment, filler, and a small amount of heavy metal ions. Electrophoresis is one of the most effective methods for coating metal workpieces. Electrophoretic coating is a special coating method in which the coated object with conductivity is immersed in a tank filled with water-diluted electrophoretic paint with low concentration as an anode (or cathode), and a corresponding cathode (or anode) is arranged in the tank. After connecting a direct current between the two poles for a period of time, a uniform and fine water-insoluble coating film is deposited on the surface of the coated object.

[0003] With the rapid development of electrophoretic paint industry, environmental protection has also brought difficulties. In the production process of electrophoretic paint plating parts, the surface of the plated parts needs to be washed with water first, and then washed with pure water once, which can clean the surface of the plated parts, and then the next electroplating process can be carried out, so as to ensure the smooth and beautiful surface of the produced parts. When the plated parts are washed with water and pure water, wastewater containing electrophoretic paint is generated. If this wastewater is discharged into the sewer, it will pollute the environment. Therefore, it is urgent to solve the problem of treating and recycling electrophoretic paint wastewater.

[0004] The existing technology usually uses chemical agents to react with electrophoretic wastewater to precipitate harmful substances. After filtering the precipitate, clear liquid that can be reused is obtained.

[0005] The Chinese invention patent with the patent name "High-efficiency energy-saving RO electrophoretic recycling system" and the patent number "CN109704487B" discloses a recycling system that can perform multiple filtration on electrophoretic wastewater through multiple filtration, and can also brush the ultrafiltration membrane to maintain good filtration effect. However, in this system, the precipitate always remains in the system and needs to be treated separately, which reduces the recycling efficiency of the recycling system. Therefore, a recycling device that can efficiently treat the precipitate is needed. SUMMARY

[0006] The application aims to provide an electrophoretic paint wastewater recycling device and equipment, which has the effect of effectively treating filter materials and avoiding filter material accumulation.

[0007] The above technical purpose of the application is achieved by the following technical scheme: an electrophoretic paint wastewater recycling device and equipment, comprising a reaction tank, the upper end of the reaction tank is provided with a liquid inlet and a medicament feeding port, the inside of the reaction tank is provided with a stirring assembly, the bottom of the reaction tank is provided with a liquid outlet, the liquid outlet is provided with a control valve, and the liquid outlet is connected with a filter device below the control valve;

[0008] The filter device comprises a rack, the rack is fixedly connected with a water purification pipe, the axis of the water purification pipe is horizontally arranged, the side of the water purification pipe is provided with a water inlet gap below the liquid outlet, the water purification pipe is coaxially provided with mounting plates on the two sides of the water inlet gap, the two mounting plates are arranged in parallel and at intervals, the mounting plates are rotationally connected with the outside of the water purification pipe, a plurality of support partitions are arranged in an annular array with the axis of the water purification pipe as the center between the mounting plates, a ring of filter screens is fixedly connected to one side of the support partitions close to each other, the filter screens completely cover the water inlet gap, a protective plate is arranged between the two mounting plates outside the ring of support partitions, the protective plate is fixedly connected with the rack, the protective plate is provided with a connecting port at the upper end of the water inlet gap, the connecting port is connected with the liquid outlet, a waste outlet is arranged directly below the protective plate, and the mounting plates are connected with a power assembly for driving the rotation of the mounting plates.

[0009] By adopting the above technical scheme, when in use, the control valve is closed first, then the electrophoretic paint wastewater is introduced from the liquid inlet, the required medicament is introduced from the medicament feeding port, and then the stirring assembly is started to fully stir the electrophoretic paint wastewater and the medicament, then the control valve is opened, the wastewater mixture enters the filter device from the liquid outlet, at the same time, the power assembly drives the rotation of the mounting plates, the mounting plates drive the rotation of the support partitions, the wastewater mixture flows into the gap between the two support partitions from the liquid outlet, under the action of gravity, passes through the filter screens, enters the water purification pipe from the water inlet gap of the water purification pipe, and then flows out from one end of the water purification pipe, while the precipitates are left above the filter screens, and with the rotation of the mounting plates, the precipitates rotate together until they rotate to the lower side, under the action of gravity, the precipitates fall from the filter screens, gradually slide to the support partitions, and finally flow out from the waste outlet, in this way, the filter screens are designed in a rotating annular shape, the entire side surface of the annular shape can be used for filtration, and with the rotation of the filter screens, the precipitates can be effectively discharged, which is very convenient and does not cause the accumulation of precipitates.

[0010] As a further arrangement of the present application, a rotating rod is arranged in the area between the two mounting plates and between each adjacent support partition, the rotating rod is parallel to the axis of the water purification pipe, the rotating rod is externally provided with a brush, and the rotating rod is connected with a driving assembly for driving the rotation of the rotating rod.

[0011] As a further arrangement of the present application, a sliding groove is arranged at the connection between the mounting plate and the rotating rod, the sliding groove is arranged along the radial direction of the mounting plate, the rotating rod is slidingly arranged in the sliding groove, and sealing plates are slidingly arranged on the two sides of the sliding groove.

[0012] As a further arrangement of the present application, the driving assembly comprises a gear one fixedly connected with the rotating rod at both ends of the rotating rod, and the adjusting plate is provided with a rack at the horizontal groove.

[0013] By adopting the above technical scheme, when the filter screen is working and rotates to the lower side, all the precipitates cannot be dropped under the action of gravity, and therefore the brush is added. When the filter screen is filtering, the two ends of the rotating rod are located in the circular groove of the adjusting groove, the rotating rod is located above the sliding groove, the brush is away from the filter screen at this time, and the brush does not affect the filtering of the filter screen. When the filter screen completes the filtering and the part with the precipitates gradually rotates to the lower side, the rotating rod rotates together with the mounting plate and rotates from the circular groove to the horizontal groove. When the rotating rod slides in the horizontal groove, the rotating rod gradually approaches the filter screen, so that the brush approaches and is close to the filter screen. In this process, the gear one on the two sides of the rotating rod meshes with the rack, so that the gear one rotates, the gear one drives the rotating rod and the brush to rotate, and the filter screen is cleaned. The precipitates cleaned are dropped from the waste outlet under the action of gravity and the brush, so that the filtering efficiency of the filter screen is completely ensured. When the cleaning is completed, the rotating rod slowly rotates into the circular groove, so that the brush is separated from the filter screen and does not affect the filtering work of the filter screen.

[0014] As a further arrangement of the present application, the driving assembly comprises a gear two fixedly connected with the mounting plate coaxially, and a motor is fixedly arranged on the rack, and the motor is in transmission connection with the gear two.

[0015] By adopting the above technical scheme, the motor drives the gear two to rotate, so as to realize the rotation of the mounting plate.

[0016] The present application has the following beneficial effects:

[0017] 1. In use, first close the control valve, then pass the electrophoretic paint wastewater from the liquid inlet, pass the required medicament from the medicament feeding port, then start the stirring assembly to fully stir the electrophoretic paint wastewater and the medicament, then open the control valve, the wastewater mixture passes from the liquid outlet into the filtering device, at the same time the power assembly drives the installation plate to rotate, the installation plate drives the support partition to rotate, the wastewater mixture flows from the liquid outlet into the gap between the two support partitions, under the action of gravity, passes through the filter screen, enters the clean water pipe from the water inlet gap of the clean water pipe, and then flows out from one end of the clean water pipe, while the precipitate is left above the filter screen, with the rotation of the installation plate, the precipitate rotates together until it rotates to the lower side, under the action of gravity, the precipitate falls from the filter screen, gradually slides onto the support partition, and finally flows out from the waste outlet, in this way, the filter screen is designed as a rotating ring, the entire side surface of the ring can be used for filtering, and with the rotation of the filter screen, the precipitate can be effectively discharged, which is very convenient and does not cause the accumulation of the precipitate.

[0018] 2. When the filter screen rotates to the lower side, all the precipitate may not be able to fall under the action of gravity, for this reason, a brush is added, when the filter screen is filtering, at this time, the two ends of the rotating rod are located in the circular groove of the adjusting groove, the rotating rod is located above the sliding groove, at this time, the brush is still a distance away from the filter screen, at this time, the brush does not affect the filtering of the filter screen, when the filter screen completes the filtering and the part with the accumulated precipitate gradually rotates to the lower side, the rotating rod rotates together with the installation plate, and rotates from the circular groove to the horizontal groove, when the rotating rod slides in the horizontal groove, the rotating rod gradually approaches the filter screen, so that the brush approaches and is close to the filter screen, in this process, the gear one and the rack on the two sides of the rotating rod are engaged, so that the gear one rotates, the gear one drives the rotating rod and the brush to rotate, and the filter screen is cleaned, the cleaned precipitate falls from the waste outlet under the action of gravity and the brush, which completely guarantees the filtering efficiency of the filter screen; when the cleaning is completed, the rotating rod slowly rotates to the circular groove, so that the brush is separated from the filter screen, which does not affect the filtering work of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced, obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0020] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0021] Figure 2 is a schematic diagram of the overall structure of the embodiment;

[0022] Figure 3 is the cross-sectional view of the filter device of the embodiment;

[0023] Figure 4 is the external structure view of the filter device of the embodiment;

[0024] Figure 5 is the internal structure view of the filter device of the embodiment;

[0025] Figure 6 is the structure view of the driving assembly of the embodiment;

[0026] Figure 7 is the structure view of the mounting plate and the support partition plate of the embodiment;

[0027] Figure 8 is the structure view of the adjusting plate of the embodiment;

[0028] Figure 9 is the structure view of the clean water pipe of the embodiment;

[0029] In the figure, 1 is a reaction tank, 11 is a liquid inlet, 12 is a reagent feeding port, 13 is a stirring assembly, 14 is a liquid outlet, 15 is a control valve, 2 is a filter device, 21 is a clean water pipe, 22 is a water inlet gap, 23 is a mounting plate, 24 is a support partition plate, 25 is a filter screen, 26 is a protective plate, 27 is a waste outlet, 28 is a power assembly, 281 is a second gear, 282 is a motor, 31 is a rotating rod, 32 is a brush, 33 is a driving assembly, 331 is a first gear, 332 is a rack, 34 is a sliding groove, 35 is a sealing plate, 36 is an adjusting plate, 37 is an adjusting groove, 371 is a circular groove, and 372 is a horizontal groove. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] EMBODIMENT

[0032] An electrophoretic paint wastewater recycling device and equipment, with reference to Figures 1 to 9 , comprising a reaction tank 1, the upper end of the reaction tank 1 is provided with a liquid inlet 11 and a reagent feeding port 12, the inside of the reaction tank 1 is provided with a stirring assembly 13, the bottom of the reaction tank 1 is provided with a liquid outlet 14, the liquid outlet 14 is provided with a control valve 15, and the liquid outlet 14 is connected with a filter device 2 below the control valve 15;

[0033] The filtering device 2 comprises a frame, a water purification pipe 21 fixedly connected to the frame, an axis of the water purification pipe 21 arranged horizontally, a water inlet gap 22 arranged on a side of the water purification pipe 21 below the liquid outlet 14, two installation plates 23 coaxially arranged on two sides of the water purification pipe 21 at the water inlet gap 22, the two installation plates 23 arranged in parallel and at intervals, the installation plates 23 rotatably connected to the outside of the water purification pipe 21, a plurality of support partitions 24 arranged in an annular array with the axis of the water purification pipe 21 as the center between the two installation plates 23, a ring of filter screens 25 fixedly connected to one side of the plurality of support partitions 24 close to each other, the filter screens 25 completely covering the water inlet gap 22, a protection plate 26 arranged between the two installation plates 23 at an outer ring of the support partitions 24, the protection plate 26 fixedly connected to the frame, the protection plate 26 arranged at an upper end of the water inlet gap 22 and provided with a connecting port connected to the liquid outlet 14, and a waste outlet 27 arranged directly below the protection plate 26, and the installation plates 23 connected to a power assembly 28 driving the installation plates 23 to rotate.

[0034] In use, first, the control valve 15 is closed, then the electrophoretic paint wastewater is poured into the liquid inlet 11, the required medicament is poured into the medicament pouring port 12, and then the stirring assembly 13 (in the embodiment, the stirring assembly 13 is a prior art, which can achieve the effect of stirring, and will not be described in detail here) is started to fully stir the electrophoretic paint wastewater and the medicament, then the control valve 15 is opened, the wastewater mixture enters the filtering device 2 from the liquid outlet 14, at the same time, the power assembly 28 drives the installation plates 23 to rotate, the installation plates 23 drive the support partitions 24 to rotate, the wastewater mixture flows into the gap between the two support partitions 24 from the liquid outlet 14, under the action of gravity, passes through the filter screens 25, enters the water purification pipe 21 from the water inlet gap 22 of the water purification pipe 21, and then flows out from one end of the water purification pipe 21, while the precipitate is left above the filter screens 25, rotates together with the installation plates 23 as the installation plates 23 rotate, and is finally discharged from the waste outlet 27. This way, the filter screens 25 are designed to rotate in an annular shape, the entire side surface of the annular shape can be used for filtering, and as the filter screens 25 rotate, the precipitate can be effectively discharged, which is very convenient and does not cause accumulation of the precipitate.

[0035] In order to ensure good water inlet efficiency, the water inlet gap 22 in the embodiment is a 180° gap, which can maximize the water inlet range. Of course, by setting the rotation speed of the installation plates 23 and the number of the support partitions 24 and other parameters, other water inlet gap 22 ranges can also be obtained.

[0036] Further, a rotating rod 31 is arranged in a region between each adjacent support partition 24 between the two installation plates 23, the rotating rod 31 is parallel to the axis of the water purification pipe 21, a brush 32 is arranged outside the rotating rod 31, and the rotating rod 31 is connected to a driving assembly 33 driving the rotating rod 31 to rotate.

[0037] Further, the connection between the mounting plate 23 and the rotating rod 31 is provided with a sliding groove 34 arranged along the radial direction of the mounting plate 23, the rotating rod 31 is slidingly arranged in the sliding groove 34, both sides of the sliding groove 34 are slidingly provided with sealing plates 35, the two mounting plates 23 are fixedly connected with adjusting plates 36 on the outer sides of the two mounting plates 23, the adjusting plates 36 are provided with adjusting grooves 37 on the sides facing the rotating rod 31, the adjusting grooves 37 include circular grooves 371 and horizontal grooves 372 at the bottom, the radius of the circular grooves 371 is equal to the radius of the circle of the rotating rod 31 to the mounting plate 23, and the rotating rod 31 is slidingly arranged in the adjusting grooves 37.

[0038] Further, the driving assembly 33 includes gear wheels one 331 fixedly connected with the rotating rod 31 at both ends of the rotating rod 31, and the adjusting plates are provided with gear racks 332 at the horizontal grooves 372.

[0039] When the filter screen 25 works to rotate to the lower side, all the precipitates cannot be caused to fall under the action of gravity, for this reason, the brush 32 is added, when the filter screen 25 is filtering, at this time, both ends of the rotating rod 31 are located in the circular grooves 371 of the adjusting grooves 37, the rotating rod 31 is located above the sliding groove 34, at this time, the brush 32 is still a distance away from the filter screen 25, at this time, the brush 32 does not affect the filtering of the filter screen 25, when the filter screen 25 completes the filtering, the part with the precipitates accumulated gradually rotates to the lower side, the rotating rod 31 rotates together with the mounting plate 23, and rotates from the circular groove 371 to the horizontal groove 372, when the rotating rod 31 slides in the horizontal groove 372, the rotating rod 31 gradually approaches the filter screen 25, so that the brush 32 approaches and is close to the filter screen 25, in this process, the gear wheels one 331 and the gear racks 332 on both sides of the rotating rod 31 are engaged, so that the gear wheels one 331 rotate, the gear wheels one 331 drive the rotating rod 31 and the brush 32 to rotate, and the filter screen 25 is cleaned, the cleaned precipitates fall from the waste outlet 27 under the action of gravity and the brush 32, so that the filtering efficiency of the filter screen 25 is completely ensured; when the cleaning is completed, the rotating rod 31 slowly rotates to the circular groove 371, so that the brush 32 is separated from the filter screen 25, and does not affect the filtering work of the filter screen 25.

[0040] Further, the power assembly 28 includes gear wheels two 281 fixedly connected with the mounting plate 23 coaxially, and a motor 282 fixedly arranged on the rack and in transmission connection with the gear wheels two 281. The motor 282 drives the gear wheels two 281 to rotate, so as to realize the rotation of the mounting plate 23.

[0041] The working principle of the embodiment is as follows:

[0042] In use, first close the control valve 15, then from the liquid inlet 11 into the electrophoretic paint wastewater, from the agent feeding port 12 into the required agent, then start the stirring assembly 13, the electrophoretic paint wastewater and the agent are fully stirred, then open the control valve 15, the wastewater mixture from the liquid outlet 14 into the filter device 2;

[0043] At the same time of opening the control valve 15, start the motor 282, the motor 282 drives the gear two 281 to rotate, the gear two 281 drives the mounting plate 23 to rotate, the mounting plate 23 drives the support partition plate 24 to rotate, the wastewater mixture flows from the liquid outlet 14 into the gap between the two support partition plates 24, under the action of gravity, passes through the filter screen 25, enters the clean water pipe 21 from the water inlet gap 22 of the clean water pipe 21, and then flows out from one end of the clean water pipe 21, while the precipitate is left above the filter screen 25, with the rotation of the mounting plate 23, rotates together until rotating to the lower side, under the action of gravity, the precipitate falls from the filter screen 25, gradually slides to the support partition plate 24, and finally flows out from the waste outlet 27;

[0044] When the filter screen 25 is filtering, at this time, the both ends of the rotating rod 31 are located in the circular groove 371 of the adjusting groove 37, the rotating rod 31 is above the sliding groove 34, at this time, the brush 32 is away from the filter screen 25, at this time, the brush 32 does not affect the filtering of the filter screen 25, when the filter screen 25 completes the filtering and the part with the precipitate gradually rotates to the lower side, the rotating rod 31 rotates together with the mounting plate 23, and rotates from the circular groove 371 to the horizontal groove 372, when the rotating rod 31 slides in the horizontal groove 372, the rotating rod 31 gradually approaches the filter screen 25, so that the brush 32 approaches the filter screen 25 and is close to the filter screen 25, in this process, the gear one 331 and the rack 332 on both sides of the rotating rod 31 are engaged, so that the gear one 331 rotates, the gear one 331 drives the rotating rod 31 and the brush 32 to rotate, and the filter screen 25 is cleaned, the cleaned precipitate falls from the waste outlet 27 under the action of gravity and the brush 32, so that the filtering efficiency of the filter screen 25 is completely ensured; when the cleaning is completed, the rotating rod 31 slowly rotates to the circular groove 371, so that the brush 32 is away from the filter screen 25, and does not affect the filtering work of the filter screen 25.

Claims

1. A device for recycling and treating electrophoretic paint wastewater, characterized in that: The utility model provides a filter device and a reaction tank, the reaction tank is provided with the filter device, the filter device is connected with the reaction tank, and the filter device is used for filtering the liquid outlet of the reaction tank. The filter device (2) includes a rack, the rack is fixedly connected with a water purification pipe (21), the axis of the water purification pipe (21) is horizontally arranged, the side of the water purification pipe (21) is provided with a water inlet gap (22) below the liquid outlet (14), the water purification pipe (21) is provided with mounting plates (23) on both sides of the water inlet gap (22), the mounting plates (23) are coaxially arranged with the water purification pipe (21), the two mounting plates (23) are arranged in parallel and are spaced apart, the mounting plates (23) are rotatably connected with the outside of the water purification pipe (21), a plurality of support partitions (24) are arranged in an annular array between the mounting plates (23) with the axis of the water purification pipe (21) as the center, a plurality of the support partitions (24) are fixedly connected with a ring of filter screens (25) on the side close to each other, the filter screens (25) completely cover the water inlet gap (22), a protective plate (26) is arranged between the two mounting plates (23) outside the outer ring of the support partitions (24), the protective plate (26) is fixedly connected with the rack, the protective plate (26) is provided with a connecting port at the upper end of the water inlet gap (22), the connecting port is connected with the liquid outlet (14), a waste outlet (27) is arranged below the protective plate (26), the mounting plates (23) are connected with power components (28) for driving the rotation thereof; Rotating rods (31) are arranged in the region between each adjacent support partition (24) between the two mounting plates (23), the rotating rods (31) are parallel to the axis of the water purification pipe (21), the rotating rods (31) are provided with brushes (32) outside, and the rotating rods (31) are connected with drive components (33) for driving the rotation thereof; The mounting plates (23) are provided with sliding grooves (34), the sliding grooves (34) are arranged in the radial direction of the mounting plates (23), the rotating rods (31) are slidingly arranged in the sliding grooves (34), and sealing plates (35) are slidingly arranged on the two sides of the sliding grooves (34); The rack is fixedly connected with adjusting plates (36) outside the two mounting plates (23), adjusting grooves (37) are formed in the sides of the two adjusting plates (36) facing the rotating rods (31), the adjusting grooves (37) include circular grooves (371) and horizontal grooves (372) at the bottom, and the rotating rods (31) are slidingly arranged in the adjusting grooves (37). The driving assembly (33) comprises gear one (331) arranged at both ends of the rotating rod (31) and fixedly connected with the rotating rod (31), and the adjusting plate (36) is provided with a rack (332) at the horizontal slot (372); when the rotating rod (31) slides in the horizontal slot (372), the gear one (331) and the rack (332) are engaged.

2. The electrophoretic paint waste water recovery treatment device according to claim 1, characterized in that: The power assembly (28) comprises gear two (281) coaxially and fixedly connected with the mounting plate (23), and a motor (282) is fixedly arranged on the rack and in transmission connection with the gear two (281).

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