Metal part coating waste gas treatment device

Abstract

The invention discloses a metal part coating waste gas treatment device which comprises a treatment box, a liquid inlet pipe is installed at the top end of one side of the treatment box, a liquid discharge pipe is installed at the bottom end of one side of the treatment box, valves are installed on the liquid inlet pipe and the liquid discharge pipe, an exhaust pipe is installed at the top end of the treatment box, and a waste gas treatment assembly is installed on the treatment box. The waste gas treatment assembly comprises a rotating shaft arranged on the treatment box, a mounting frame is mounted at the top end of the treatment box, a motor is mounted at the top end of the mounting frame and used for driving the rotating shaft to rotate, and crushing blades are uniformly mounted on the outer wall of the rotating shaft; according to the waste gas treatment device, in the working process, the first gas inlet holes are located below the crushing blades, so that bubbles generated when waste gas is introduced into treatment liquid need to pass through the crushing blades, the crushing blades can crush the bubbles and release the waste gas in the bubbles, the contact effect of the waste gas and the treatment liquid is improved, and the treatment effect of the treatment liquid on the waste gas is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a metal parts coating waste gas treatment device. Background Art

[0002] In the metal surface coating industry, when spraying metal workpieces, the conveyor suspension chain is also running. The operator sprays the paint on the workpiece with quality and speed. Because the paint is sprayed out under the action of compressed air, the high pressure, the fine paint smoke spreads around, and the paint smoke waste gas is generated. In the process of treating the waste gas of metal parts coating, the waste gas needs to be passed into the treatment liquid so that the waste gas contacts the treatment liquid. The treatment liquid absorbs the harmful impurities in the waste gas, thereby achieving the purpose of waste gas treatment. However, there are the following defects:

[0003] When the waste gas is introduced into the treatment liquid, a part of the waste gas gathers to generate bubbles. The waste gas in the bubbles cannot contact the treatment liquid, resulting in poor treatment effect on the waste gas. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a metal parts coating waste gas treatment device, which effectively solves the problem that bubbles may be generated when the waste gas is passed into the treatment liquid, thereby affecting the treatment effect of the waste gas.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal parts coating waste gas treatment device, comprising a treatment box, a liquid inlet pipe is installed at the top end of one side of the treatment box, a liquid discharge pipe is installed at the bottom end of one side of the treatment box, valves are installed on the liquid inlet pipe and the liquid discharge pipe, an exhaust pipe is installed at the top end of the treatment box, and a waste gas treatment component is installed on the treatment box;

[0006] The waste gas treatment component includes a rotating shaft arranged on the treatment box, a mounting frame is installed on the top of the treatment box, a motor is installed on the top of the mounting frame, the motor is used to drive the rotating shaft to rotate, crushing blades are evenly installed on the outer wall of the rotating shaft, the crushing blades are used to crush the bubbles generated by the waste gas entering the treatment liquid, a top air inlet is installed on the top of the rotating shaft, the top air inlet is used for air intake, and a liquid flow circulation part is installed inside the rotating shaft, the liquid flow circulation part is used to drive the treatment liquid to circulate.

[0007] Preferably, the top end of the rotating shaft passes through the top of the processing box, there is a gap between the bottom end of the rotating shaft and the inner bottom wall of the processing box, the top end of the rotating shaft is fixedly connected to the output shaft of the motor, and two limit plates are installed on the rotating shaft, and the two limit plates are respectively in contact with the top wall of the processing box and the inner top wall of the processing box.

[0008] Preferably, the top air inlet component includes a top inner cavity opened at the top position inside the rotating shaft, connecting holes are opened at equal angles on the outside of the top inner cavity, an air inlet sleeve is provided on the outer side of the rotating shaft, an air inlet cavity is opened on the inner side of the air inlet sleeve, the connecting hole is located on the inner side of the air inlet cavity, an air inlet pipe is installed on one side of the air inlet sleeve, the air inlet pipe is fixedly installed on the top of the processing box, and a sealing ring is installed on the side of the air inlet sleeve close to the rotating shaft, so that when the rotating shaft rotates, the exhaust gas can enter the top inner cavity through the connecting hole.

[0009] Preferably, an annular vertical groove is opened inside the rotating shaft, the cross-section of the annular vertical groove is annular, the top of the annular vertical groove is connected to the top inner cavity, the outside of the annular vertical groove is opened with a first air inlet hole at an equal angle, the first air inlet hole is located below the crushing blade, and the bottom end of the annular vertical groove is opened with a second air inlet hole at an equal angle.

[0010] Preferably, the liquid circulation component includes an internal vertical groove opened inside the rotating shaft, the internal vertical groove is located on the inner side of the annular vertical groove and is coaxially arranged with the annular vertical groove, the bottom end of the internal vertical groove passes through the bottom end of the rotating shaft, and a first fan blade is installed at an equal angle on the inner wall of the internal vertical groove, and the first fan blade is used to drive the treated liquid to flow upward along the internal vertical groove when the rotating shaft rotates.

[0011] Preferably, water holes are opened at equal angles on the outer side of the internal vertical groove, the water holes are arranged near the top of the internal vertical groove, and the height of the water holes is higher than the liquid level of the treatment liquid inside the treatment box, the water holes are connected to the annular vertical groove, and a rotating mixing element is installed between the water holes and the inner wall of the annular vertical groove.

[0012] Preferably, a block is movably installed inside the internal vertical groove, and the outer wall of the block contacts the inner wall of the internal vertical groove. The block closes the water hole, and opens the water hole after the block moves upward. A spring is provided inside the rotating shaft, and the spring is located above the internal vertical groove. A movable plate is movably installed inside the spring, and a connecting rod is installed at the bottom end of the movable plate. The connecting rod passes through the internal vertical groove, and the bottom end of the connecting rod is fixedly connected to the block. A spring is installed at the top of the movable plate, and the top of the spring is fixedly connected to the inner top wall of the movable groove.

[0013] Preferably, the rotating mixing element includes a rotating tube arranged at an equal angle on the inner side of the annular vertical groove, the rotating tube corresponds to the water holes one by one, a second fan blade is installed at an equal angle on the inner side of the rotating tube, the second fan blade is arranged close to one side of the internal vertical groove, dispersion holes are evenly opened on the rotating tube, and a stirring plate is installed at an equal angle on the outer side of the rotating tube.

[0014] Preferably, two fixed end tubes are provided at both ends of the rotating tube, and the two fixed end tubes are respectively fixedly installed on the inner and outer inner walls of the annular vertical groove, one of the fixed end tubes is connected to the water hole, and annular grooves are provided at the ends of the two fixed end tubes close to each other. Limiting rings are symmetrically installed at both ends of the rotating tube, and the limiting rings are rotatably connected to the annular grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) During operation, the exhaust gas can be introduced into the treatment liquid through the rotating shaft while rotating. The exhaust gas enters the treatment liquid from the first air inlet and the second air inlet provided at the bottom of the rotating shaft. After contacting with the treatment liquid, harmful substances are absorbed. The first air inlet is located below the crushing blade, so that the bubbles generated by the exhaust gas entering the treatment liquid need to pass through the crushing blade, so that the crushing blade can crush the bubbles and release the exhaust gas in the bubbles, thereby improving the contact effect between the exhaust gas and the treatment liquid and improving the treatment effect of the treatment liquid on the exhaust gas;

[0017] 2) During operation, the bottom end of the internal vertical groove is connected to the inside of the treatment box. When the rotating shaft rotates continuously, the internal vertical groove is driven upward by the first fan blade, and the block is pushed upward to open the water hole, and then flows back to the treatment box through the annular vertical groove, so that the treatment liquid circulates in the rotating shaft, so that the treatment liquid and the exhaust gas are pre-contacted in the annular vertical groove, and the space in the annular vertical groove is small, thereby improving the contact effect between the treatment liquid and the exhaust gas and improving the exhaust gas treatment efficiency;

[0018] 3) During operation, when the treated liquid enters the annular vertical groove from the water hole, the treated liquid flows through the rotating tube and is dispersed and discharged from the dispersion hole, and when flowing through the second fan blade, it drives the rotating tube to rotate, so that the stirring plate rotates, thereby improving the treated liquid dispersed into the annular vertical groove to quickly contact with the exhaust gas flowing through, thereby further improving the treatment effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 This is a schematic structural diagram of a metal parts coating waste gas treatment device of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the exhaust gas treatment component of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the top air inlet of the present invention;

[0024] Figure 4 It is a schematic diagram of the bottom structure of the rotating shaft of the present invention;

[0025] Figure 5 It is a schematic diagram of the block structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the fixed end pipe structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the rotating tube structure of the present invention.

[0028] In the figure: 1, treatment box; 2, liquid inlet pipe; 3, liquid discharge pipe; 4, exhaust pipe; 5, exhaust gas treatment component; 501, rotating shaft; 502, limit plate; 503, mounting frame; 504, motor; 505, crushing blade; 506, top air inlet; 5061, top inner cavity; 5062, connecting hole; 5063, air inlet sleeve; 5064, air inlet cavity; 5065, air inlet pipe; 5066, annular vertical groove; 5067, first air inlet hole; 5068, second Air inlet hole; 507, liquid circulation part; 5071, internal vertical groove; 5072, first fan blade; 5073, water hole; 5074, stopper; 5075, movable groove; 5076, movable plate; 5077, connecting rod; 5078, spring; 508, rotating mixing part; 5081, fixed end pipe; 5082, annular groove; 5083, rotating pipe; 5084, limiting ring; 5085, second fan blade; 5086, dispersion hole; 5087, stirring plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Depend on Figure 1-7 The present invention relates to a metal parts coating waste gas treatment device, comprising a treatment box 1, a liquid inlet pipe 2 is installed at the top end of one side of the treatment box 1, a liquid discharge pipe 3 is installed at the bottom end of one side of the treatment box 1, valves are installed on the liquid inlet pipe 2 and the liquid discharge pipe 3, an exhaust pipe 4 is installed at the top end of the treatment box 1, and an exhaust gas treatment component 5 is installed on the treatment box 1;

[0031] The waste gas treatment component 5 includes a rotating shaft 501 arranged on the treatment box 1, a mounting frame 503 is installed at the top of the treatment box 1, a motor 504 is installed at the top of the mounting frame 503, and the motor 504 is used to drive the rotating shaft 501 to rotate, and crushing blades 505 are evenly installed on the outer wall of the rotating shaft 501, and the crushing blades 505 are used to crush the bubbles generated by the waste gas entering the treatment liquid, and a top air inlet 506 is installed at the top of the rotating shaft 501, and the top air inlet 506 is used for air intake. A liquid circulation member 507 is installed inside the rotating shaft 501, and the liquid circulation member 507 is used to drive the treatment liquid to circulate, the top of the rotating shaft 501 penetrates to the top of the treatment box 1, and there is a gap between the bottom end of the rotating shaft 501 and the inner bottom wall of the treatment box 1, the top of the rotating shaft 501 is fixedly connected to the output shaft of the motor 504, and two limit plates 502 are installed on the rotating shaft 501, and the two limit plates 502 are respectively in contact with the top wall of the treatment box 1 and the inner top wall of the treatment box 1.

[0032] The top air inlet member 506 includes a top inner cavity 5061 opened at the top position of the rotating shaft 501, and a connecting hole 5062 is opened at an equal angle on the outside of the top inner cavity 5061. An air inlet sleeve 5063 is provided on the outside of the rotating shaft 501, and an air inlet cavity 5064 is opened on the inside of the air inlet sleeve 5063. The connecting hole 5062 is located on the inner side of the air inlet cavity 5064. An air inlet pipe 5065 is installed on one side of the air inlet sleeve 5063. The air inlet pipe 5065 is fixedly installed on the top of the processing box 1. A sealing ring is installed on the side of the air inlet sleeve 5063 close to the rotating shaft 501, so that when the rotating shaft 501 rotates, the exhaust gas can enter the top inner cavity 5061 through the connecting hole 5062. An annular vertical groove 5066 is opened inside the rotating shaft 501. The cross section of the annular vertical groove 5066 is annular, and the top of the annular vertical groove 5066 is connected to the top inner cavity 5061. The cavities 5061 are interconnected, and a first air inlet hole 5067 is provided at an equal angle on the outer side of the annular vertical groove 5066. The first air inlet hole 5067 is located below the crushing blade 505, and a second air inlet hole 5068 is provided at an equal angle on the bottom end of the annular vertical groove 5066. The rotating shaft 501 can pass the waste gas into the treatment liquid while rotating. The waste gas enters the treatment liquid from the first air inlet hole 5067 and the second air inlet hole 5068 provided at the bottom end of the rotating shaft 501, and absorbs harmful substances after contacting the treatment liquid. The first air inlet hole 5067 is located below the crushing blade 505, so that the bubbles generated by the waste gas passing into the treatment liquid need to pass through the crushing blade 505, so that the crushing blade 505 can break the bubbles and release the waste gas in the bubbles, thereby improving the contact effect between the waste gas and the treatment liquid, and improving the treatment effect of the treatment liquid on the waste gas.

[0033] The liquid circulation member 507 includes an internal vertical groove 5071 opened inside the rotating shaft 501, the internal vertical groove 5071 is located inside the annular vertical groove 5066, and is coaxially arranged with the annular vertical groove 5066. The bottom end of the internal vertical groove 5071 penetrates to the bottom end of the rotating shaft 501, and a first fan blade 5072 is installed at an equal angle on the inner wall of the internal vertical groove 5071. The first fan blade 5072 is used to drive the treatment liquid to flow upward along the internal vertical groove 5071 when the rotating shaft 501 rotates. The outer side of the internal vertical groove 5071 is provided with a water hole 5072 at an equal angle. 073, the water hole 5073 is arranged near the top of the internal vertical groove 5071, and the height of the water hole 5073 is higher than the liquid level of the treatment liquid in the treatment box 1, the water hole 5073 is connected with the annular vertical groove 5066, and a rotating mixing element 508 is installed between the water hole 5073 and the inner wall of the annular vertical groove 5066, and a stopper 5074 is movably installed inside the internal vertical groove 5071, and the outer wall of the stopper 5074 contacts the inner wall of the internal vertical groove 5071, and the stopper 5074 closes the water hole 5073, and after the stopper 5074 moves upward The water hole 5073 is opened, and a spring 5078 is provided inside the rotating shaft 501. The spring 5078 is located above the internal vertical groove 5071. A movable plate 5076 is movably installed inside the spring 5078. A connecting rod 5077 is installed at the bottom end of the movable plate 5076. The connecting rod 5077 penetrates into the internal vertical groove 5071, and the bottom end of the connecting rod 5077 is fixedly connected to the stopper 5074. A spring 5078 is installed at the top end of the movable plate 5076. The top end of the spring 5078 is fixedly connected to the inner top wall of the movable groove 5075. The bottom end of the vertical groove 5071 is connected with the interior of the treatment box 1. When the rotating shaft 501 rotates continuously, the first fan blade 5072 drives the internal vertical groove 5071 to move upward, pushing the block 5074 to move upward to open the water hole 5073, and then flows back to the treatment box 1 through the annular vertical groove 5066, so that the treatment liquid circulates in the rotating shaft 501, and the treatment liquid and the exhaust gas are pre-contacted in the annular vertical groove 5066. The space in the annular vertical groove 5066 is small, which improves the contact effect between the treatment liquid and the exhaust gas and improves the exhaust gas treatment efficiency.

[0034] The rotating mixing element 508 includes a rotating tube 5083 arranged at an equal angle on the inner side of the annular vertical groove 5066, the rotating tube 5083 corresponds to the water hole 5073, the inner side of the rotating tube 5083 is provided with a second blade 5085 at an equal angle, the second blade 5085 is arranged close to the inner side of the vertical groove 5071, the rotating tube 5083 is evenly provided with dispersion holes 5086, the outer side of the rotating tube 5083 is provided with a stirring plate 5087 at an equal angle, and two fixed end tubes 5081 are arranged at both ends of the rotating tube 5083, and the two fixed end tubes 5081 are respectively fixedly installed on the inner and outer inner walls of the annular vertical groove 5066, and one of the fixed end tubes 5081 is provided with a fixed end tube 5081. The two fixed end tubes 5081 are connected to the water hole 5073, and an annular groove 5082 is provided at one end close to each other. Limiting rings 5084 are symmetrically installed at both ends of the rotating tube 5083. The limiting rings 5084 are rotatably connected to the annular groove 5082. When the treated liquid enters the annular vertical groove 5066 from the water hole 5073, the treated liquid flows through the rotating tube 5083 and is dispersed and discharged from the dispersion holes 5086. When flowing through the second fan blade 5085, the rotating tube 5083 is driven to rotate, so that the stirring plate 5087 rotates, thereby improving the ability of the treated liquid dispersed into the annular vertical groove 5066 to quickly contact with the exhaust gas flowing through, thereby further improving the treatment effect on the exhaust gas.

[0035] Working principle: When working, first open the valve on the liquid inlet pipe 2, pass the treatment liquid for waste gas treatment into the treatment box 1, ensure that the liquid level of the treatment liquid is below the water hole 5073, and close the valve on the liquid inlet pipe 2;

[0036] The waste gas to be treated is passed from the air inlet pipe 5065 into the air inlet cavity 5064, and then into the top inner cavity 5061 through the connecting hole 5062, and then into the treatment liquid from the first air inlet hole 5067 and the second air inlet hole 5068 through the annular vertical groove 5066. After the waste gas contacts the treatment liquid, harmful substances in the waste gas are absorbed, and finally the treated waste gas is discharged from the exhaust pipe 4;

[0037] When the waste gas is introduced, the motor 504 is turned on to drive the rotating shaft 501 to rotate continuously, and the crushing blades 505 are evenly installed on the outside of the rotating shaft 501 to rotate. On the one hand, the treatment liquid is stirred to improve the contact effect between the treatment liquid and the waste gas. On the other hand, bubbles are generated after the waste gas enters the treatment liquid. The waste gas in the bubbles cannot contact the treatment liquid. The crushing blades 505 can break the bubbles and release the waste gas in the bubbles, thereby improving the contact effect between the waste gas and the treatment liquid and improving the treatment effect of the treatment liquid on the waste gas.

[0038] During the rotation of the rotating shaft 501, the first fan blade 5072 rotates together with the rotating shaft 501, thereby driving the treatment liquid to move upward along the internal vertical groove 5071 for a certain distance, and pushing the stopper 5074 to move upward under the action of pressure, and then opening the water hole 5073. At this time, the treatment liquid enters the annular vertical groove 5066 from the water hole 5073 and returns to the inside of the treatment box 1, so that the treatment liquid circulates inside the rotating shaft 501, so that the waste gas and the treatment liquid can be pre-contacted and mixed inside the annular vertical groove 5066, thereby improving the effect of waste gas treatment;

[0039] When the treated liquid enters the annular vertical groove 5066 from the water hole 5073, the treated liquid flows through the rotating tube 5083 and is dispersed and discharged from the dispersion hole 5086. When flowing through the second fan blade 5085, it drives the rotating tube 5083 to rotate, causing the stirring plate 5087 to rotate, thereby improving the ability of the treated liquid dispersed into the annular vertical groove 5066 to quickly contact with the exhaust gas flowing through, thereby further improving the treatment effect on the exhaust gas.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal parts painting waste gas treatment device, comprising a treatment box (1), characterized in that: A liquid inlet pipe (2) is installed at the top end of one side of the treatment box (1), a liquid discharge pipe (3) is installed at the bottom end of one side of the treatment box (1), valves are installed on the liquid inlet pipe (2) and the liquid discharge pipe (3), an exhaust pipe (4) is installed at the top end of the treatment box (1), and an exhaust gas treatment component (5) is installed on the treatment box (1); The waste gas treatment component (5) comprises a rotating shaft (501) arranged on the treatment box (1), a mounting frame (503) is installed at the top of the treatment box (1), a motor (504) is installed at the top of the mounting frame (503), the motor (504) is used to drive the rotating shaft (501) to rotate, crushing blades (505) are evenly installed on the outer wall of the rotating shaft (501), the crushing blades (505) are used to crush bubbles generated by the waste gas entering the treatment liquid, a top air intake member (506) is installed at the top of the rotating shaft (501), the top air intake member (506) is used to intake air, and a liquid circulation member (507) is installed inside the rotating shaft (501), the liquid circulation member (507) is used to drive the treatment liquid to circulate.

2. A metal parts painting waste gas treatment device according to claim 1, characterized in that: The top end of the rotating shaft (501) passes through the top of the processing box (1), a gap exists between the bottom end of the rotating shaft (501) and the inner bottom wall of the processing box (1), the top end of the rotating shaft (501) is fixedly connected to the output shaft of the motor (504), and two limit plates (502) are installed on the rotating shaft (501), and the two limit plates (502) are respectively in contact with the top wall of the processing box (1) and the inner top wall of the processing box (1).

3. The metal parts painting waste gas treatment device according to claim 1, characterized in that: The top air inlet member (506) comprises a top inner cavity (5061) opened at the top position inside the rotating shaft (501), connecting holes (5062) are opened at equal angles on the outer side of the top inner cavity (5061), an air inlet sleeve (5063) is sleeved on the outer side of the rotating shaft (501), an air inlet cavity (5064) is opened on the inner side of the air inlet sleeve (5063), the connecting hole (5062) is located on the inner side of the air inlet cavity (5064), an air inlet pipe (5065) is installed on one side of the air inlet sleeve (5063), the air inlet pipe (5065) is fixedly installed on the top of the processing box (1), and a sealing ring is installed on the side of the air inlet sleeve (5063) close to the rotating shaft (501), so that when the rotating shaft (501) rotates, the exhaust gas can enter the top inner cavity (5061) through the connecting hole (5062).

4. A metal parts painting waste gas treatment device according to claim 3, characterized in that: An annular vertical groove (5066) is provided inside the rotating shaft (501), the cross section of the annular vertical groove (5066) is annular, the top of the annular vertical groove (5066) is connected to the top inner cavity (5061), a first air inlet hole (5067) is provided at an equal angle on the outer side of the annular vertical groove (5066), the first air inlet hole (5067) is located below the crushing blade (505), and a second air inlet hole (5068) is provided at an equal angle at the bottom end of the annular vertical groove (5066).

5. The metal parts painting waste gas treatment device according to claim 1, characterized in that: The liquid circulation member (507) comprises an internal vertical groove (5071) opened inside the rotating shaft (501), the internal vertical groove (5071) is located on the inner side of the annular vertical groove (5066) and is coaxially arranged with the annular vertical groove (5066), the bottom end of the internal vertical groove (5071) passes through the bottom end of the rotating shaft (501), and a first fan blade (5072) is installed at an equal angle on the inner wall of the internal vertical groove (5071), and the first fan blade (5072) is used to drive the treatment liquid to flow upward along the internal vertical groove (5071) when the rotating shaft (501) rotates.

6. A metal parts painting waste gas treatment device according to claim 5, characterized in that: Water holes (5073) are provided at equal angles on the outer side of the internal vertical groove (5071). The water holes (5073) are arranged near the top of the internal vertical groove (5071), and the height of the water holes (5073) is higher than the liquid level of the treatment liquid inside the treatment box (1). The water holes (5073) are connected to the annular vertical groove (5066), and a rotating mixing element (508) is installed between the water holes (5073) and the inner wall of the annular vertical groove (5066).

7. The metal parts painting waste gas treatment device according to claim 5, characterized in that: A stopper (5074) is movably installed inside the internal vertical groove (5071), and the outer wall of the stopper (5074) contacts the inner wall of the internal vertical groove (5071). The stopper (5074) closes the water hole (5073), and opens the water hole (5073) after the stopper (5074) moves upward. A spring (5078) is provided inside the rotating shaft (501), and the spring (5078) is located above the internal vertical groove (5071). A movable plate (5076) is movably installed inside (5078), a connecting rod (5077) is installed at the bottom end of the movable plate (5076), the connecting rod (5077) penetrates into the interior of the internal vertical groove (5071), and the bottom end of the connecting rod (5077) is fixedly connected to the stopper (5074), a spring (5078) is installed at the top end of the movable plate (5076), and the top end of the spring (5078) is fixedly connected to the inner top wall of the movable groove (5075).

8. The metal parts painting waste gas treatment device according to claim 6, characterized in that: The rotating mixing element (508) comprises a rotating tube (5083) arranged at an equal angle on the inner side of the annular vertical groove (5066), the rotating tube (5083) corresponds to the water through hole (5073) one by one, a second blade (5085) is installed at an equal angle on the inner side of the rotating tube (5083), and the second blade (5085) is arranged close to one side of the internal vertical groove (5071), the rotating tube (5083) is evenly provided with dispersion holes (5086), and a stirring plate (5087) is installed at an equal angle on the outer side of the rotating tube (5083).

9. A metal parts painting waste gas treatment device according to claim 8, characterized in that: Two fixed end tubes (5081) are provided at both ends of the rotating tube (5083), and the two fixed end tubes (5081) are respectively fixedly installed on the inner and outer inner walls of the annular vertical groove (5066), one of the fixed end tubes (5081) is connected to the water through hole (5073), and an annular groove (5082) is provided at the ends of the two fixed end tubes (5081) close to each other. Limiting rings (5084) are symmetrically installed at both ends of the rotating tube (5083), and the limiting rings (5084) are rotatably connected to the annular groove (5082).

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