A kind of body paint exhaust treatment tower spray circulating water tank

Abstract

The present application relates to a kind of vehicle body paint exhaust treatment tower spray circulating water tank, belong to industrial waste gas treatment equipment technical field.The device includes tower body, spray core shaft, drive ring seat, first suspension ring and second suspension ring, and the inside of tower body is equipped with processing cavity, and its upper and lower ends are equipped with shaft support, bottom is equipped with liquid collecting tank, and side wall is equipped with air inlet;Spray core shaft includes guide cone, guide cap, sub-guide ball and main shaft core, and circulating pump is arranged in main shaft core, and spray core shaft surface is provided with spray hole;Multiple drive ring seats are respectively corresponding to control multiple suspension rings, and its surface is equipped with magnetic yoke coil and exciter, and the permanent magnet block of drive suspension ring outer periphery realizes magnetic suspension rotation.The present application is by spray-magnetic suspension disturbance-flow channel trapping coupling mechanism, so that water and waste gas are fully contacted, agitated and dispersed in processing cavity, while extending waste gas residence time, improve particle capture efficiency and purification capacity, applicable to high concentration workshop waste gas treatment scene.

Description

Technical Field

[0001] This invention relates to the field of industrial waste gas treatment equipment technology, specifically to a spray circulating water tank for treating waste gas from vehicle body painting. Background Technology

[0002] In the automotive manufacturing industry, the body painting process generates a large amount of exhaust gas containing volatile organic compounds (VOCs) and fine particulate matter. To reduce pollution to the workshop environment and the external atmosphere, wet scrubbing towers are commonly used for exhaust gas purification. Traditional wet scrubbing exhaust gas treatment devices generally consist of a vertically mounted tower with simple spray pipes or nozzles inside. A water pump circulates and sprays liquid water to wash the rising exhaust gas. Some devices incorporate packing layers or labyrinth structures within the tower to extend the exhaust gas's residence path and improve absorption efficiency.

[0003] However, the above-mentioned traditional structures have many defects and are difficult to meet the requirements of high-efficiency purification. Specifically, traditional devices often use a simple nozzle arrangement, resulting in uneven water distribution and an inability to form a continuous and stable water curtain. This leads to insufficient contact between some pollutants in the exhaust gas and the water, resulting in low treatment efficiency.

[0004] While water pump circulation can create a spray path, it lacks an efficient dispersion and disturbance mechanism, resulting in large droplet sizes and low atomization, making it difficult to achieve deep capture of particulate matter, especially limiting its ability to remove fine particulate matter and high-concentration VOCs. Exhaust gas typically flows upwards, and traditional structures lack effective measures to restrict its flow direction, allowing exhaust gas to quickly penetrate the treatment section. Short gas-liquid contact time and insufficient purification process lead to low emission compliance rates.

[0005] The lack of a flexible and adjustable gas-liquid disturbance mechanism makes it impossible to automatically adjust the working mode according to different operating conditions, resulting in poor adaptability. At the same time, the mechanical parts suffer from friction and wear, leading to low operating efficiency and high maintenance costs. The spray and exhaust gas mixing path is fixed and singular, and the structure is rigid, making it difficult to carry out multi-stage series treatment, which is not conducive to treating exhaust gas scenarios with complex components or multi-stage requirements.

[0006] In summary, existing spray towers still have significant shortcomings in terms of water dispersion methods, airflow disturbance control, magnetic levitation non-contact drive, Tesla flow channel waste gas interception, closed-loop spray circulation, and corrosion and adhesion resistance. There is an urgent need for an improved structure that can comprehensively improve spraying efficiency, disturbance performance, and waste gas treatment residence time to meet the requirements of efficient and environmentally friendly emissions in modern paint shops. Summary of the Invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, the technical solution adopted by the present invention is as follows: a spraying circulating water tank for treating exhaust gas from car body painting, comprising: a tower body, a spraying core shaft, and a plurality of drive ring seats embedded in the tower body and a plurality of first and second suspended rings sleeved on the surface of the spraying core shaft, wherein a treatment chamber is provided inside the tower body, and a shaft frame is provided at both the upper and lower ends of the treatment chamber, a liquid collection tank is provided at the bottom end of the tower body, and an air inlet is provided on the surface of the tower body;

[0009] The spray mandrel includes a guide cone, a guide cap, a guide ball, and a circulation pump. The inner side of the guide cone is fitted with a main shaft, and the upper and lower ends of the main shaft are respectively rotatably fitted with the inner sides of two shaft frames. Several guide cones are arranged in a straight line along the surface of the main shaft, and the guide cap and guide ball are fitted on the surface of the main shaft and located at the upper and lower ends of the guide cone assembly, respectively. The surface of the guide cone has spray holes distributed in a ring. The circulation pump is fixed to the surface of the main shaft.

[0010] The number of drive ring seats is the sum of the number of first suspension rings and second suspension rings, and they are arranged in a one-to-one correspondence. The surface of the drive ring seat is provided with a number of magnetic yoke coils and exciters. The outer periphery of the first suspension ring and the second suspension ring is provided with a number of uniformly distributed permanent magnet blocks. The magnetic yoke coils and exciters achieve high-speed rotation of the first suspension ring and the second suspension ring through electromagnetic action and magnetic effect of permanent magnet blocks.

[0011] The first suspended ring has several centrifugal blades on its surface, and a through groove is provided between adjacent centrifugal blades. The top surface of the second suspended ring has several dispersing blades. By setting up a multi-stage magnetic levitation suspended ring and a nozzle structure, the synergistic effect of liquid spraying, disturbance and dispersion is achieved, effectively improving the contact area between water and waste gas and the purification efficiency.

[0012] In a preferred embodiment, the present invention can be further configured such that: an outer flow channel is provided between the inner wall of the treatment chamber and the outer sides of the plurality of first and second suspended rings; and an inner flow channel is provided between the outer periphery of the spray mandrel and the inner sides of the plurality of first and second suspended rings. Each outer flow channel is inverted arc-shaped (L-shape), and the outer and inner flow channels are interconnected to form a Tesla valve flow channel. Through the Tesla valve geometric flow channel design, the rising velocity of the exhaust gas is effectively slowed down, the residence time of the exhaust gas in the treatment chamber is extended, and the sufficiency of particle adsorption and gas-liquid exchange is improved.

[0013] In a preferred embodiment, the present invention can be further configured such that: the bottom surface of each guide cone is provided with a guide groove, and the guide groove is annular, with a gap between it and the top surface of the second suspension ring to form the inner flow channel. The guide groove structure, together with the second suspension ring, forms an auxiliary channel, enhances the airflow disturbance path, and improves the efficiency of exhaust gas guidance and dispersion.

[0014] In a preferred embodiment, the present invention can be further configured such that: the driving ring seat is arranged in a conical shape, and the permanent magnet blocks on the surfaces of the first and second suspension rings are arranged obliquely; the electromagnetic effect of the magnetic yoke coils on the surface of the driving ring seat obliquely facing the permanent magnet blocks achieves levitation support for the first and second suspension rings. The oblique magnetic field design enhances the stability of magnetic levitation and the accuracy of rotation control, realizing a contactless, low-energy-consumption, and high-response dynamic disturbance system.

[0015] In a preferred embodiment, the present invention can be further configured such that: the main shaft is hollow and located at the center of the tower body; the inlet of the circulating pump is connected to the inside of the liquid collection tank through the main shaft; and the outlet of the circulating pump is connected to the spray nozzle through the main shaft. The hollow main shaft design creates a closed-loop liquid channel, which, in conjunction with the circulating pump, enables automatic liquid supply and recovery, improving liquid utilization efficiency and avoiding waste.

[0016] In a preferred embodiment, the present invention can be further configured such that the spray nozzles spray towards the inner wall of the processing chamber, and both the outer side of the spray mandrel and the surface of the inner wall of the processing chamber are provided with an anti-corrosion and anti-stick coating. This anti-corrosion and anti-stick design effectively delays system aging and particle adhesion, reduces maintenance frequency, and improves service life and reliability.

[0017] In a preferred embodiment, the present invention can be further configured such that: the magnetic yoke coil includes a magnetic yoke core and an electromagnetic coil wound around the surface of the magnetic yoke core, and the exciter is used to pass a high-frequency alternating current through the electromagnetic coil. Employing a high-frequency electromagnetic excitation method provides a stable and powerful rotary driving force, facilitating rapid response to different operating conditions.

[0018] In a preferred embodiment, the present invention can be further configured such that: during the rotation of the second suspended ring, the water and flue gas are thoroughly mixed through the dispersing blades, and during the rotation of the first suspended ring, the water is aerated through the channel to form an annular water curtain. Through the two-stage perturbation structure with different operating modes, an atomized water curtain system is formed from the outside in and superimposed from top to bottom, achieving efficient adsorption of particles and capture of odorous gases.

[0019] The beneficial effects achieved by this invention are as follows:

[0020] 1. In this invention, by setting a spray mandrel inside the tower body and connecting it with a circulating pump, a stable and efficient closed-loop water-liquid circulation channel is formed. The spraying of each level of nozzles, together with the magnetic levitation suspension ring and the drive ring seat, forms a multi-level gas-liquid disturbance and dispersion structure, which improves the contact area and treatment efficiency between waste gas and water.

[0021] 2. In this invention, by setting annularly distributed spray holes, the spray water can be evenly distributed and spray the inner wall of the treatment chamber to form an annular curtain. Furthermore, the centrifugal blades of the first suspension ring and the dispersing blades of the second suspension ring allow the water to form an annular water curtain and fine water mist during rotation, achieving efficient stirring and mixing of water and air, and realizing the absorption of high-efficiency waste gas particles.

[0022] 3. In this invention, the independent rotational speed control of the first and second suspension rings is achieved by working each independent drive ring seat, thereby realizing dynamic magnetic field control of rotational speed and stability, and the working state can be flexibly adjusted according to the needs of waste gas treatment.

[0023] 4. In this invention, the Tesla valve flow channel structure is formed by an inverted L-shaped flow channel with alternating inner and outer sides, which effectively blocks the upward flow of exhaust gas and achieves long-term interception and full treatment of exhaust gas. Attached Figure Description

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

[0025] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the tower body according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the spray mandrel and its surface first and second suspension rings according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of a tower body according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the drive ring seat, the first suspension ring, and the second suspension ring according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the surface structure of the first and second suspended rings according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the first suspended ring structure according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of a spray mandrel structure according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of a drive ring seat structure according to an embodiment of the present invention.

[0033] Figure label:

[0034] 100. Tower body; 110. Liquid collection tank; 120. Air inlet; 130. Shaft support; 101. Processing chamber; 102. Outer flow channel; 103. Inner flow channel;

[0035] 200. Spray mandrel; 210. Guide cone; 220. Guide cap; 230. Guide ball; 240. Circulation pump; 211. Main shaft; 212. Spray hole; 213. Guide groove;

[0036] 300, Drive ring seat; 310, Magnetic yoke coil; 320, Exciter; 400, First suspension ring; 410, Centrifugal vane; 411, Through slot; 500, Second suspension ring; 510, Dispersion vane; 600, Permanent magnet block. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0038] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0039] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, including a spray circulating water tank for treating exhaust gas from vehicle body painting.

[0040] Example 1:

[0041] like Figures 1-9 As shown, this embodiment provides a spray circulation water tank for treating exhaust gas from vehicle body painting, which includes: a tower body 100, a spray spindle 200, a plurality of drive ring seats 300 embedded inside the tower body 100, and a plurality of first suspension rings 400 and second suspension rings 500 sleeved on the surface of the spray spindle 200.

[0042] The tower body 100 has a processing chamber 101 inside, with two shafts 130 at its upper and lower ends to support the rotation of the spray spindle 200. The bottom of the tower body 100 has a liquid collection tank 110 as a circulating liquid collection area, and an air inlet 120 on its outer shell side wall for waste gas to flow in.

[0043] The spray mandrel 200 comprises a guide cone 210, a guide cap 220, guide balls 230, and a circulating pump 240, forming a ring-shaped mandrel mechanism. The main shaft core 211 is a hollow structure that runs longitudinally through the shaft, and its upper and lower ends are rotatably fitted into two shaft supports 130 to form a stable central shaft support structure. Multiple guide cones 210 are arranged axially along the main shaft core 211, and each of their surfaces has several annularly distributed spray holes 212 for water spraying. The guide cap 220 and guide balls 230 are respectively located at the two axial ends of the guide cones 210 to provide guidance. The circulating pump 240 is fixed to the surface of the main shaft core 211. Its inlet end is connected to the liquid collection tank 110, and its outlet end is connected to the spray hole 212 to realize spray circulation. The bottom surface of each of the guide cones 210 is provided with a guide groove 213, and the guide groove 213 is in the shape of an annular groove. There is a gap between the guide groove 213 and the top surface of the second suspension ring 500 to form an inner flow channel 103. The structure of the guide groove 213, together with the second suspension ring 500, forms an auxiliary channel to enhance the airflow disturbance path and improve the efficiency of exhaust gas guidance and dispersion.

[0044] Multiple drive ring seats 300 are axially distributed around the spray spindle 200 in a conical direction. Their number is equal to the total number of the first suspension ring 400 and the second suspension ring 500, and they are used in a one-to-one correspondence. Each drive ring seat 300 has several magnetic yoke coils 310 and exciters 320 on its surface to generate an electromagnetic drive effect. These interact with multiple permanent magnet blocks 600 distributed on the outer periphery of the first suspension ring 400 and the second suspension ring 500 to achieve magnetic levitation and rotational drive.

[0045] The first suspension ring 400 and the second suspension ring 500 are arranged alternately along the axial direction of the spray core shaft 200 and coaxially sleeved on its outer surface. They achieve high-speed rotation through magnetic interaction with the corresponding drive ring seat 300. The surface of the first suspension ring 400 is provided with multiple centrifugal blades 410 and several through grooves 411 are formed between adjacent centrifugal blades 410, while the top surface of the second suspension ring 500 is provided with multiple dispersing blades 510 for liquid agitation and dispersion.

[0046] Multiple external flow channels 102 are provided between the inner wall of the treatment chamber 101 and the outer sides of the first suspension ring 400 and the second suspension ring 500; an inner flow channel 103 is provided between the outer periphery of the spray mandrel 200 and the inner sides of the first suspension ring 400 and the second suspension ring 500. The external flow channels 102 have an inverted L-shaped arc surface structure and intersect with the inner flow channels 103 to form a multi-stage composite flow channel system in the shape of a Tesla valve flow channel, which effectively suppresses the upward flow velocity of the exhaust gas.

[0047] During operation, the circulating pump 240 draws water from the collection tank 110 and delivers it through the main shaft core 211 to the spray nozzles 212. The water is then sprayed onto the inner wall of the treatment chamber 101 through multiple nozzles 212, forming a uniform annular water curtain. Simultaneously, under the magnetic force between the magnetic yoke coil 310 and the permanent magnet block 600, the first suspension ring 400 and the second suspension ring 500 achieve stable suspension and high-speed rotation, centrifugally forming water mist and enhancing the water-air mixing capacity. The staggered flow channel (outer flow channel 102, inner flow channel 103) structure further impedes the upward movement of exhaust gas, increasing the residence time of exhaust gas in the treatment chamber 101 and improving the particulate matter adsorption efficiency.

[0048] Example 2:

[0049] This embodiment optimizes the structure based on Embodiment 1, aiming to further improve the flexibility of adjustment and the adaptability of the structure.

[0050] In this embodiment, the drive ring seat 300 has an independent power supply control structure, allowing each magnetic yoke coil 310 to be input with a high-frequency alternating current, forming multiple independent magnetic fields, thereby achieving independent control of the rotational speed of the corresponding first suspension ring 400 and second suspension ring 500. This design can control the droplet size and dispersion intensity by adjusting the rotational speed for different concentrations or types of exhaust gases, thus flexibly responding to different operating conditions.

[0051] Furthermore, some of the first suspension ring 400 and the second suspension ring 500 can be replaced with deformed structures that only have centrifugal swirl vanes 410 or only have dispersing vanes 510, making the water spray pattern more diverse and allowing different turbulence methods to be selected according to the composition of the exhaust gas. At the same time, an internal spiral pair structure is provided on some of the outer flow channels 102 to further turbulent the airflow and increase the complexity of the exhaust gas flow path.

[0052] In this embodiment, the main shaft core 211 still serves as a hollow liquid-passing shaft, with an anti-corrosion coating inside. At the same time, the inner wall of the processing chamber 101 and all components in contact with the exhaust gas are also provided with anti-corrosion and anti-sticking layers to prevent corrosive components or particles in the exhaust gas from depositing and clogging the system.

[0053] During the overall operation, under the magnetic force provided by the magnetic yoke coil 310 and the action of the permanent magnet block 600, the first suspension ring 400 and the second suspension ring 500 form a stable suspension and rotate at different speeds. After the liquid is sprayed out from the nozzle 212, it is disturbed by the centrifugal blade 410 and the dispersing blade 510, which further expands the water mist distribution range, significantly improves the water-air mixing efficiency, and extends the flow path of the exhaust gas in the cross-flow channel, thus achieving full treatment.

[0054] Working principle and usage process of this invention:

[0055] This invention achieves efficient treatment of exhaust gases from automotive painting based on a spray-magnetic levitation disturbance-flow channel interception coupling mechanism. Its core principles include the following aspects:

[0056] 1. Closed-loop spray circulation principle: The circulation pump 240 draws water from the collection tank 110 and delivers it through the hollow main shaft core 211 to multiple spray holes 212. The water is then sprayed out through the guide cones 210 in a ring arrangement, forming an annular water mist that sprays onto the inner wall of the treatment chamber 101. Under the action of gravity, the water falls back into the collection tank 110, forming a closed-loop circulation path to ensure continuous supply and repeated use.

[0057] 2. Magnetic Levitation Dispersion Principle: Multiple drive ring seats 300, equipped with magnetic yoke coils 310 and exciters 320, form an electromagnetic excitation unit. This unit drives multiple permanent magnets 600 in the first suspension ring 400 and the second suspension ring 500 to generate an oblique rotating magnetic field under electromagnetic influence. This causes the first and second suspension rings 400 and 500 to rotate at high speed and magnetically levitate on the outer surface of the spray core shaft 200 without mechanical contact. During rotation, the first suspension ring 400 throws the spray liquid at high speed through its centrifugal blades 410, forming a fine water curtain through the channel 411. The second suspension ring 500, through its dispersing blades 510, strongly disturbs and disperses the water and exhaust gas. This multi-stage magnetic levitation disturbance layer structure allows for thorough mixing of exhaust gas and water mist, significantly increasing particle capture rate and contact time.

[0058] 3. Tesla Valve Flow Channel Principle: Multiple external flow channels 102 are provided between the inner wall of the treatment chamber 101 and the outer sides of multiple first suspension rings 400 and second suspension rings 500; multiple internal flow channels 103 are provided between the outer periphery of the spray mandrel 200 and the inner side of the suspension rings. These are arranged in an alternating pattern, forming the Tesla valve flow channel structure. This structure has an inverted L-shaped curved layout, relying on its geometric structure to generate a unidirectional suppression effect on the airflow. The guide groove 213 structure, in conjunction with the second suspension ring 500, forms an auxiliary channel, suppressing the airflow path. After the exhaust gas enters, under the obstruction of the flow channel structure and the interference of backflow, its upward velocity is significantly slowed down, thus being retained inside the treatment chamber 101 for a longer time, achieving more sufficient liquid phase contact and treatment effect.

[0059] 4. Multi-stage composite treatment mechanism: The entire treatment system consists of a closed-loop process from spraying, disturbance, interception to discharge. Relying on the coupling effect of physical disturbance, liquid dispersion and geometric interception, it synergistically completes the degradation of harmful components in the waste gas, the capture of particles and the water phase absorption treatment, which significantly improves the waste gas purification efficiency and reduces secondary pollution.

[0060] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A spray circulating water tank for a spray painting exhaust tower of a vehicle body, characterized by comprising: Include: Tower body (100), spray core shaft (200), and embedded in the tower body (100) inside the drive ring seat (300) and a number of first suspension ring (400) and second suspension ring (500) are embedded in the tower body (100) inside the drive ring seat (300) and a number of first suspension ring (400) and second suspension ring (500), the inside of the tower body (100) is provided with a processing cavity (101), and the upper and lower ends of the processing cavity (101) are provided with shaft supports (130), and the bottom end of the tower body (100) is provided with a liquid collecting tank (110), and the surface of the tower body (100) is provided with an air inlet (120); The spray core shaft (200) includes a guide cone (210), a guide cap (220), a guide ball (230) and a circulating pump (240), the inside of the guide cone (210) is sleeved with a main shaft core (211), and the upper and lower ends of the main shaft core (211) are respectively rotatably sleeved in the inside of the two shaft supports (130), a plurality of guide cones (210) are linearly arranged along the surface of the main shaft core (211), the guide cap (220) and the guide ball (230) are sleeved on the surface of the main shaft core (211) and are respectively located at the upper and lower ends of the guide cone (210) combination, the surface of the guide cone (210) is provided with a plurality of annularly distributed spray holes (212), and the circulating pump (240) is fixed on the surface of the main shaft core (211); The surface of the first suspension ring (400) is provided with a plurality of centrifugal rotating leaves (410), and the adjacent centrifugal rotating leaves (410) are provided with through grooves (411), and the top surface of the second suspension ring (500) is provided with a plurality of dispersion leaves (510); The inner wall of the processing cavity (101) and the outside of a plurality of first suspension rings (400) and second suspension rings (500) are provided with an outer flow channel (102), and the outer periphery of the spray core shaft (200) and the inside of a plurality of first suspension rings (400) and second suspension rings (500) are provided with an inner flow channel (103), each outer flow channel (102) is in inverted arc L shape, the outer flow channel (102) and the inner flow channel (103) are interlaced and communicated, forming a Tesla valve flow channel structure, for retarding the upward movement of the exhaust gas; The number of the drive ring seat (300) is the sum of the number of the first suspension ring (400) and the second suspension ring (500), and they are arranged one by one, the surface of the drive ring seat (300) is provided with a plurality of magnetic yoke coils (310) and exciter (320), the outer periphery of the first suspension ring (400) and the second suspension ring (500) is provided with a plurality of evenly distributed permanent magnets (600), the magnetic yoke coil (310) and the exciter (320) realize the high-speed rotation of the first suspension ring (400) and the second suspension ring (500) through the electromagnetic effect and the magnetic effect of the permanent magnet (600).

2. The spray circulating water tank of the waste paint treatment tower of a vehicle body according to claim 1, characterized in that, The bottom surface of each guide cone (210) is provided with a guide groove (213), and the guide groove (213) is in the form of an annular groove, and a gap is provided between the guide groove (213) and the top surface of the second suspension ring (500), for forming the inner flow channel (103).

3. The spray circulating water tank of the waste paint treatment tower of a vehicle body according to claim 1, characterized in that, The driving ring seat (300) is arranged in a conical shape, and the first and second suspension rings (400, 500) and the surface permanent magnet block (600) are arranged in an oblique direction. The magnetic yoke coil (310) on the surface of the driving ring seat (300) is used to electromagnetically act on the permanent magnet block (600) in an oblique direction, so as to realize the suspension support of the first and second suspension rings (400, 500).

4. The spray water circulating tank of the waste paint treatment tower of a vehicle body according to claim 1, wherein The magnetic yoke coil (310) comprises a magnetic yoke core and an electromagnetic coil wound on the surface of the magnetic yoke core. The exciter (320) is used to input high-frequency alternating current into the electromagnetic coil.

5. The spray water circulating tank of the waste paint treatment tower of a vehicle body according to claim 1, wherein The main shaft core (211) is a hollow shaft and is located at the shaft center of the tower body (100). The liquid inlet end of the circulating pump (240) is communicated with the inside of the liquid collecting tank (110) through the main shaft core (211), and the liquid outlet end of the circulating pump (240) is communicated with the spray hole (212) through the main shaft core (211), so as to realize the pumping movement of the water liquid in the inside of the liquid collecting tank (110).

6. The spray water circulation tank of the paint overspray treatment tower of a vehicle body according to claim 1, characterized in that, The spray hole (212) sprays to the inner wall of the processing cavity (101), and the outer side of the spray core shaft (200) and the surface of the inner wall of the processing cavity (101) are both provided with an anticorrosive and antisticking coating, so as to avoid the pollution and corrosion of waste gas particles.

7. The spray water tank of claim 1, wherein, When the second suspension ring (500) rotates, the water liquid and the flue gas are fully mixed through the dispersion leaves (510). When the first suspension ring (400) rotates, the water liquid is exposed and dispersed through the through slot (411) to form a ring-shaped water curtain.

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