Waste gas purification treatment equipment and electroplating waste gas purification treatment method

Abstract

The invention relates to the technical field of waste gas treatment, in particular to waste gas purification treatment equipment and an electroplating waste gas purification treatment method.The waste gas purification treatment equipment comprises a treatment box, a gas feeding pipe and a discharging pipe, the gas feeding pipe and the discharging pipe are fixedly installed on the two sides of the treatment box, and a filtering disc is fixed in the treatment box; the air collecting cover is fixedly installed on the filtering disc, the end, away from the filtering disc, of the air collecting cover communicates with a pressurizing pipe, and a waste gas pressurizing mechanism is arranged in the pressurizing pipe; the flow guide pipes are fixedly mounted on the pressurizing pipe and are symmetrically arranged, and a conduction regulation and control mechanism connected with the waste gas pressurizing mechanism is arranged in the pressurizing pipe; the turbulent flow discharging assembly is arranged in the flow guide pipe and is used for discharging waste gas into the treatment box in a dispersed manner when the flow guide pipe is conducted; the waste gas treatment mechanism is arranged in the treatment box, waste gas can be discharged in a multidirectional turbulent flow mode after being subjected to pressurization treatment, and the contact area of the waste gas and treatment liquid is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to waste gas purification equipment and a purification method for electroplating waste gas. Background Art

[0002] Waste gas in the electroplating industry mainly comes from evaporation, spillage, spraying, cleaning, drying and other links in the electroplating production process. The main components include organic matter, acidic gas, alkaline gas, volatile organic compounds (VOCs), nitrogen oxides (NOx), etc.

[0003] Electroplating waste gas treatment is a complex and diverse process, which requires comprehensive consideration of multiple aspects such as reducing waste gas generation, collection and pretreatment, and final purification and management. Existing waste gas treatment methods are usually chemical absorption, physical adsorption, biological treatment and other methods.

[0004] As for the chemical absorption method, the harmful substances are absorbed and separated by bringing the waste gas into contact with the absorbent. Commonly used absorbents include alkali solution, acid solution, organic solvents, etc.; currently in the industry, when chemical absorption treatment is performed on electroplating waste gas, the waste gas pipe is generally connected directly to the bottom of the absorption tank or absorption box through a flange, and then the chemical absorption liquid is injected into the absorption tank or absorption box.

[0005] When the waste gas enters the bottom of the absorption tank or absorption box, it is affected by the pressure difference of the liquid surface, causing the waste gas to basically overflow upward in the vertical direction. The overflow path is the shortest path, resulting in a shorter contact time between the waste gas and the absorption liquid. If the liquid level height is increased, it will cause high waste gas emission pressure, resulting in problems with unsmooth waste gas emission.

[0006] In addition, after the exhaust gas is discharged from the air pipe and enters the absorption tank or absorption box, the exhaust gas will choose the shortest path to be discharged under the action of pressure, resulting in the exhaust gas not being able to fully and effectively contact other absorption liquids around the path. The absorption liquid at the optimal path carries a large amount of waste, resulting in a low effective absorption rate. Summary of the invention

[0007] The purpose of the present invention is to provide a waste gas purification treatment equipment and a purification treatment method for electroplating waste gas to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: An exhaust gas purification device, comprising: A processing box, and an air supply pipe and a discharge pipe fixedly installed on both sides of the processing box, wherein a filter disc is fixed in the processing box; Also includes: An air collecting hood is fixedly mounted on the filter plate, one end of the air collecting hood away from the filter plate is connected to a boost pipe, and an exhaust gas boost mechanism is arranged in the boost pipe; A flow guide pipe is fixedly mounted on the boost pipe and is symmetrically arranged. A conduction regulating mechanism connected to the exhaust gas boost mechanism is arranged in the boost pipe. The exhaust gas boost mechanism can be activated when the exhaust gas enters the boost pipe, and the conduction state of the flow guide pipe can be adjusted by the conduction regulating mechanism. A spoiler discharge assembly is arranged in the guide pipe and is used to discharge the exhaust gas into the treatment box in a dispersed state when the guide pipe is connected; The waste gas treatment mechanism is arranged in the treatment box, and the waste gas treatment mechanism can evenly spray the treatment liquid in the treatment box.

[0009] As a further solution of the present invention: the exhaust gas boosting mechanism includes a rotating rod rotatably installed in the boosting pipe, guide columns symmetrically arranged are fixedly installed in the boosting pipe, a sealing disk slidably installed on the guide column and connected to the boosting pipe in a sliding seal, and a guide assembly connected to the sealing disk is arranged on the rotating rod.

[0010] As a further solution of the present invention: the guide assembly includes a guide groove opened on the rotating rod, a first movable sleeve fixedly connected to the sealing disk is slidably mounted on the rotating rod, a first limit block is fixed to the inner wall of the first movable sleeve, and the first limit block is slidably connected to the guide groove.

[0011] As a further solution of the present invention: the conduction and regulation mechanism includes a spiral groove opened on the rotating rod, a second movable sleeve is slidably installed on the rotating rod, a second limit block is fixed to the inner wall of the second movable sleeve, the second limit block is slidably connected to the spiral groove, and an elastic component connected to the second movable sleeve is arranged on the rotating rod.

[0012] As a further solution of the present invention: the elastic component includes a connecting plate fixedly mounted on the second movable sleeve and slidably connected to the guide column, the rotating rod is provided with a second spring abutting against the connecting plate, the guide column is provided with a first spring, the two ends of the first spring respectively abut against the sealing disk and the connecting plate, and a sealing structure is also provided on the rotating rod.

[0013] As a further solution of the present invention: the sealing structure includes an exhaust hole opened on the boost pipe and connected to the guide pipe, a support rod is fixed on the rotating rod, and sealing plates are fixed at both ends of the support rod, and the sealing plates are in contact with the exhaust hole.

[0014] As a further solution of the present invention: the spoiler discharge assembly includes a spiral guide rail fixedly installed in the guide pipe, and a guide plate is rotatably installed at the end of the guide pipe.

[0015] As a further solution of the present invention: the waste gas treatment mechanism includes a transmission rod rotatably installed in the treatment box, the transmission rod is provided with a plurality of discharge holes distributed at equal intervals, a plurality of stirring blades distributed at equal intervals around the circumference are fixed to the transmission rod, and a conveying assembly connected to the transmission rod is arranged in the treatment box.

[0016] As a further solution of the present invention: the conveying assembly includes a hollow tube fixedly installed in the processing box and sleeved on the transmission rod, the hollow tube is connected to a conveying pipe that passes through the processing box, and the transmission rod is provided with a through groove connected to the hollow tube.

[0017] A method for purifying electroplating waste gas comprises the following steps: Step 1: When the exhaust gas is transported to the air collecting hood through the air supply pipe, the exhaust gas will enter the boost pipe through the air collecting hood; Step 2: As the amount of exhaust gas increases, the air pressure in the boost pipe increases, thereby driving the exhaust gas boost mechanism to move. When the pressure in the boost pipe reaches a certain value, the exhaust gas boost mechanism drives the conduction control mechanism to move, making the guide pipe conductive; Step 3: At this time, the exhaust gas in the boost pipe will enter the guide pipe, and under the action of the spoiler emission component, the exhaust gas will enter the treatment box at multiple angles; Step 4: At the same time, under the action of the exhaust gas treatment mechanism, the treatment liquid is sprayed into the treatment box, and the contact area between the treatment liquid and the exhaust gas is large, thereby accelerating the treatment efficiency of the exhaust gas.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can change the overflow flow path of the exhaust gas discharged into the treatment box by means of turbulence, which on the one hand increases the contact range of the exhaust gas and the treatment liquid, and allows the exhaust gas to contact the absorption liquid in the treatment box as evenly and fully as possible; on the other hand, the natural overflow path of the exhaust gas in the treatment box is changed by means of turbulence, and the vertical upward overflow path is changed to a winding path as much as possible, thereby increasing the total path length and extending the time for the exhaust gas to overflow in the treatment box, so as to improve the treatment efficiency of the exhaust gas.

[0019] In addition, when the exhaust gas enters the wind collecting hood through the filter plate, the exhaust gas will be transported to the boost pipe. As the exhaust gas continues to increase, the air pressure in the boost pipe gradually increases, thereby driving the exhaust gas boosting mechanism to move. When the pressure in the boost pipe reaches a certain value, the exhaust gas boosting mechanism will drive the conduction and control mechanism to move, so that the guide pipe is conductive, so as to achieve the effect of automatically transporting the exhaust gas to the treatment box after pressurizing the exhaust gas when discharging; and the exhaust gas is discharged into the treatment box by intermittent boosting and conveying. First, it can ensure that the exhaust gas has sufficient pressure to be discharged into the treatment box, so as to avoid the reflux of the absorption liquid due to insufficient exhaust gas discharge pressure; secondly, the intermittent conveying method can provide sufficient time for the absorbent to be evenly dispersed in the absorption liquid.

[0020] The exhaust gas passing through the guide pipe will be discharged into the treatment box at multiple angles under the action of the spoiler emission component, ensuring that the exhaust gas can be fully treated.

[0021] During the process of conveying the waste gas to the treatment box, the waste gas treatment mechanism will stir the waste gas again and evenly convey the treatment liquid into the treatment box, thereby increasing the contact range between the waste gas and the treatment liquid and accelerating the waste gas treatment rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic structural diagram of an embodiment of an exhaust gas purification treatment device.

[0023] Figure 2 This is a structural schematic diagram from another angle in an embodiment of the exhaust gas purification treatment equipment.

[0024] Figure 3 This is a schematic diagram of the half-section structure of a treatment box in an embodiment of an exhaust gas purification treatment device.

[0025] Figure 4 This is a schematic diagram of the structure inside the treatment box in an embodiment of the exhaust gas purification treatment equipment.

[0026] Figure 5 The figure is a schematic diagram of the explosion structure of the waste gas treatment mechanism in one embodiment of the waste gas purification treatment equipment.

[0027] Figure 6 This is a schematic diagram of the structure of an air collecting hood, a booster pipe, and a guide pipe in an embodiment of an exhaust gas purification and treatment device.

[0028] Figure 7 This is a schematic diagram of the half-section structure of a boost pipe and a guide pipe in an embodiment of an exhaust gas purification treatment device.

[0029] Figure 8 This is a schematic diagram of a partial half-section structure of an embodiment of an exhaust gas purification and treatment device.

[0030] Fig. 9 This is a schematic diagram of the connection relationship between the exhaust gas boosting mechanism and the conduction control mechanism in an embodiment of the exhaust gas purification treatment equipment.

[0031] Fig.10 The diagram is a schematic diagram of the explosion structure of the exhaust gas boosting mechanism and the conduction regulating mechanism in one embodiment of the exhaust gas purification treatment equipment.

[0032] Fig.11 for Fig.10 A schematic diagram of the enlarged structure at point A in the middle.

[0033] In the figure: 1, processing box; 2, air supply pipe; 3, filter plate; 4, air collecting hood; 401, boost pipe; 5, transmission rod; 501, discharge hole; 6, stirring blade; 7, through groove; 8, hollow tube; 9, conveying pipe; 10, rotating rod; 1001, first straight groove; 1002, first annular groove; 1003, second straight groove; 1004, second annular groove; 1005, spiral groove; 11, guide column; 12, first movable sleeve; 13, first limit block; 14, sealing plate; 15, second movable sleeve; 16, second limit block; 17, connecting plate; 18, first spring; 19, second spring; 20, support rod; 21, sealing plate; 22, exhaust hole; 23, guide pipe; 24, spiral guide rail; 25, guide plate; 26, discharge pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0036] See also Figure 1-Figure 11 In an embodiment of the present invention, a waste gas purification device includes: A processing box 1, and an air supply pipe 2 and a discharge pipe 26 fixedly installed on both sides of the processing box 1, and a filter disc 3 is fixed in the processing box 1; Also includes: See also Figure 1 - Figure 4 , Figure 6 - Fig.11 , an air collecting hood 4 is fixedly mounted on the filter disc 3, and the end of the air collecting hood 4 facing away from the filter disc 3 is connected to a boost pipe 401, and an exhaust gas boosting mechanism is arranged in the boost pipe 401, and the exhaust gas boosting mechanism includes a rotating rod 10 rotatably mounted in the boost pipe 401, and a symmetrically arranged guide column 11 is fixedly mounted in the boost pipe 401, and a sealing disk 14 slidingly and sealingly connected to the boost pipe 401 is slidably mounted on the guide column 11, and a guide assembly connected to the sealing disk 14 is arranged on the rotating rod 10, wherein the guide assembly includes a guide groove opened on the rotating rod 10, and a first movable sleeve 12 fixedly connected to the sealing disk 14 is slidably mounted on the rotating rod 10, and a first limit block 13 is fixed to the inner wall of the first movable sleeve 12, and the first limit block 13 is slidably connected to the guide groove.

[0037] In detail, the guide groove can be divided into multiple sections, namely, a first straight groove 1001, a first annular groove 1002, a second straight groove 1003, and a second annular groove 1004, and the first straight groove 1001, the first annular groove 1002, the second straight groove 1003, and the second annular groove 1004 are connected to each other in sequence, and the wind collecting hood 4 is arranged in a cone shape, so that the exhaust gas passing through the filter disc 3 is gathered into the boost pipe 401. In the initial state, under the action of the conduction and regulation mechanism, the sealing disc 14 is located at the end of the stroke in the direction of the wind collecting hood 4, and the first limit block 13 is controlled by the first movable sleeve 12 to be located at the junction of the first straight groove 1001 and the second annular groove 1004. In the open position, when the exhaust gas enters the filter disc 3 through the air supply pipe 2, the exhaust gas is initially treated under the action of the filter disc 3, and the filtered exhaust gas will enter the wind collecting hood 4 and be transported to the boost pipe 401. As the amount of exhaust gas increases, the pressure in the boost pipe 401 will gradually increase, thereby pushing the sealing disc 14 to move away from the wind collecting hood 4 and move along the length direction of the guide column 11. The sealing disc 14 will also drive the first movable sleeve 12 to move, so as to drive the first limit block 13 to move along the length direction of the first straight groove 1001. The first limit block 13 and the first straight groove 1001 have a limiting function to ensure that the rotating rod 10 does not rotate.

[0038] Preferably, as the pressure in the boost pipe 401 gradually increases, the sealing disk 14 will continue to move until the first limit block 13 moves to the connection position of the first straight groove 1001 and the first annular groove 1002, and the rotating rod 10 can rotate in one direction. At this time, under the action of the conduction and regulation mechanism, the rotating rod 10 rotates to control the first limit block 13 to slide along the first annular groove 1002 and move to the connection position of the first annular groove 1002 and the second straight groove 1003. At the same time, under the action of the conduction and regulation mechanism, the guide pipe 23 is turned on. At this time, the pressurized exhaust gas will enter the guide pipe 23 through the boost pipe 401. When the exhaust gas treatment is completed, the pressure in the boost pipe 401 gradually decreases. At this time, under the action of the conduction and regulation mechanism, the sealing disk 14 moves toward the initial position to control the first limit block 13 to move along the length direction of the second straight groove 1003. Since the first limit block 13 and the second straight groove 1003 also have a guiding function, it is ensured that the rotating rod 10 will not rotate. When the sealing disk 14 is reset, the first limit block 13 moves to the connection position between the second straight groove 1003 and the second annular groove 1004. Under the action of the conduction and regulation mechanism, the rotating rod 10 rotates toward the initial angle to control the first limit block 13 to return to the connection position between the first straight groove 1001 and the second annular groove 1004. At this time, the conduction and regulation mechanism again controls the guide tube 23 to be in a blocked state.

[0039] See also Figure 6 - Fig.10, the guide pipe 23 is fixedly mounted on the boost pipe 401 and is symmetrically arranged, the boost pipe 401 is provided with a conduction regulating mechanism connected to the exhaust gas boosting mechanism, the exhaust gas boosting mechanism can be activated when the exhaust gas enters the boost pipe 401, and the conduction state of the guide pipe 23 is adjusted by the conduction regulating mechanism, the conduction regulating mechanism includes a spiral groove 1005 opened on the rotating rod 10, a second movable sleeve 15 is slidably mounted on the rotating rod 10, a second limit block 16 is fixed to the inner wall of the second movable sleeve 15, the second limit block 16 is slidably connected to the spiral groove 1005, and an elastic component connected to the second movable sleeve 15 is provided on the rotating rod 10 , wherein the elastic component includes a connecting plate 17 fixedly mounted on the second movable sleeve 15 and slidably connected to the guide column 11, the rotating rod 10 is sleeved with a second spring 19 abutting against the connecting plate 17, the guide column 11 is sleeved with a first spring 18, the two ends of the first spring 18 abut against the sealing disk 14 and the connecting plate 17 respectively, and the rotating rod 10 is also provided with a blocking structure, the above-mentioned blocking structure includes an exhaust hole 22 opened on the boost pipe 401 and connected to the guide pipe 23, the rotating rod 10 is fixed with a support rod 20, and sealing plates 21 are fixed at both ends of the support rod 20, and the sealing plates 21 abut against the exhaust hole 22.

[0040] It should be noted that, in the initial state, the first spring 18 and the second spring 19 are both in a compressed state, and the elastic potential energy of the second spring 19 is greater than the elastic potential energy of the first spring 18. Under the action of the first spring 18 and the second spring 19, the connecting plate 17 and the sealing disk 14 are both located at the end of the stroke in the direction of the wind collecting cover 4. The connecting plate 17 also controls the second limit block 16 to be located at the end of the stroke on one side of the spiral groove 1005 through the second movable sleeve 15, so that the first limit block 13 is located between the first straight groove 1001 and the second annular groove 1004. When the exhaust gas continuously enters the boost pipe 401, the pressure in the boost pipe 401 gradually increases, thereby pushing the sealing plate 14 to move in the direction away from the wind collecting cover 4. The sealing plate 14 will drive the first limit block 13 to move along the length direction of the first straight groove 1001 through the first movable sleeve 12. At this time, the rotating rod 10 will not rotate, so the second limit block 16 will not move, ensuring that the position of the connecting plate 17 will not change. The sealing plate 14 will also push the first elastic The first spring 18 is compressed. As the sealing disk 14 gradually moves, the elastic potential energy of the first spring 18 will gradually be greater than the elastic potential energy of the second spring 19. When the pressure in the boost pipe 401 reaches a certain value, the first limit block 13 moves to the connection position of the first straight groove 1001 and the first annular groove 1002. At this time, the rotating rod 10 can rotate in one direction. Since the elastic potential energy of the first spring 18 is greater than the elastic release of the second spring 19, the first spring 18 is elastically released and drives the connecting plate 17 to move in a direction away from the wind collecting cover 4, thereby When the second spring 19 is compressed, the connecting plate 17 will also drive the second limit block 16 to slide along the trajectory of the spiral groove 1005 through the second movable sleeve 15. Under the action of the spiral groove 1005 and the second limit block 16, the rotating rod 10 rotates. Under the action of the rotating rod 10, the first limit block 13 slides along the first annular groove 1002 and moves to the connection position between the first annular groove 1002 and the second straight groove 1003. At this time, the second limit block 16 just moves to the other side of the spiral groove 1005, and the rotating rod 10 no longer rotates.

[0041] Preferably, when the rotating rod 10 rotates, it will also drive the support rod 20 to move, thereby driving the sealing plate 21 to move, and the sealing plate 21 will be separated from the exhaust hole 22. At this time, the exhaust gas in the boost pipe 401 will be transported to the guide pipe 23 through the exhaust hole 22. When the exhaust gas is discharged, the air pressure in the boost pipe 401 gradually decreases, and the first spring 18 is elastically released, so that the sealing disk 14 is reset, and the first limit block 13 will move along the length direction of the second straight groove 1003. Under the action of the first limit block 13 and the second straight groove 1003, it is ensured that the rotating rod 10 will not rotate, so as to ensure that the position of the second limit block 16 will not change. Offset, when the sealing disk 14 is reset, the first limit block 13 moves to the connection position between the second straight groove 1003 and the second annular groove 1004. At this time, the elastic potential energy of the first spring 18 is again less than the elastic potential energy of the second spring 19, and the second spring 19 is elastically released, so that the connecting plate 17 is reset, and the second limit block 16 is controlled to slide along the spiral groove 1005 again. The rotating rod 10 will rotate toward the initial angle, so that the first limit block 13 returns to the connection position between the first straight groove 1001 and the second annular groove 1004. The rotating rod 10 will also control the sealing plate 21 to reset through the support rod 20 to seal the exhaust hole 22 again.

[0042] See also Figure 3 , Figure 4 , Figure 6 - Figure 8 The spoiler discharge assembly is arranged in the guide pipe 23, and is used to discharge the exhaust gas in a dispersed state into the treatment box 1 when the guide pipe 23 is turned on. The spoiler discharge assembly includes a spiral guide rail 24 fixedly installed in the guide pipe 23, and a guide plate 25 is rotatably installed at the end of the guide pipe 23.

[0043] Furthermore, in order to increase the treatment efficiency of exhaust gas, it is necessary to increase the range of exhaust gas discharge into the treatment box 1. In the initial state, the exhaust hole 22 is in a blocked state. When the pressure in the boost pipe 401 reaches a certain value, the blocking plate 21 will be separated from the exhaust hole 22, and the exhaust gas will be transported to the guide pipe 23. When the exhaust gas flows through the spiral guide rail 24, the exhaust gas flows in a spiral shape under the action of the spiral guide rail 24. When the spiral exhaust gas moves to the position of the guide plate 25, the exhaust gas will impact the guide plate 25, causing the guide plate 25 to swing around the rotation point. When the guide plate 25 swings to abut against the inside of the guide pipe 23, the exhaust gas pushes the guide plate 25 to swing in another direction. Repeat the above steps to achieve the control of the guide plate 25 to automatically swing back and forth under the action of the exhaust gas impact, so as to continuously change the angle of exhaust gas emission and increase the range of exhaust gas emission into the treatment box 1.

[0044] See also Figure 3 - Figure 5, a waste gas treatment mechanism is arranged in the treatment box 1, and the waste gas treatment mechanism can evenly spray the treatment liquid in the treatment box 1. The waste gas treatment mechanism includes a transmission rod 5 rotatably installed in the treatment box 1, and a plurality of discharge holes 501 distributed at equal intervals are opened on the transmission rod 5. A plurality of stirring blades 6 distributed at equal intervals around the circumference are fixed on the transmission rod 5. A conveying component connected to the transmission rod 5 is arranged in the treatment box 1, wherein the conveying component includes a hollow tube 8 fixedly installed in the treatment box 1 and sleeved on the transmission rod 5, and a conveying pipe 9 penetrating the treatment box 1 is connected to the hollow tube 8, and a through groove 7 connected to the hollow tube 8 is opened on the transmission rod 5.

[0045] Furthermore, the delivery pipe 9 is used to deliver the treated liquid to the hollow tube 8. The hollow tube 8 is connected to the through groove 7. Therefore, the treated liquid will enter the transmission rod 5 through the through groove 7. When the exhaust gas needs to be purified, the transmission rod 5 will rotate and drive the stirring blade 6 to move. Under the action of the stirring blade 6, the exhaust gas is further turbulently treated. At the same time, the delivery pipe 9 continuously delivers the treated liquid to the transmission rod 5. When the transmission rod 5 rotates, under the action of centrifugal force, the treated liquid in the transmission rod 5 is evenly discharged through the discharge hole 501, thereby increasing the contact range between the treated liquid and the exhaust gas, so as to increase the treatment efficiency of the exhaust gas.

[0046] A method for purifying electroplating waste gas comprises the following steps: Step 1: When the exhaust gas is transported to the air collecting hood 4 through the air supply pipe 2, the exhaust gas will enter the boost pipe 401 through the air collecting hood 4; Step 2: As the amount of exhaust gas increases, the air pressure in the boost pipe 401 increases, thereby driving the exhaust gas boost mechanism to move. When the pressure in the boost pipe 401 reaches a certain value, the exhaust gas boost mechanism drives the conduction control mechanism to move, so that the guide pipe 23 is conducted. Step 3: At this time, the exhaust gas in the boost pipe 401 will enter the guide pipe 23, and under the action of the spoiler discharge component, the exhaust gas will enter the treatment box 1 at multiple angles; Step 4: At the same time, under the action of the exhaust gas treatment mechanism, the treatment liquid is sprayed into the treatment box 1, and the contact area between the treatment liquid and the exhaust gas is large, thereby accelerating the treatment efficiency of the exhaust gas.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An exhaust gas purification device, comprising: A processing box (1), and an air supply pipe (2) and a discharge pipe (26) fixedly mounted on both sides of the processing box (1), wherein a filter disc (3) is fixed inside the processing box (1); It is characterized by further comprising: An air collecting hood (4) is fixedly mounted on the filter disc (3); one end of the air collecting hood (4) facing away from the filter disc (3) is connected to a boosting pipe (401); an exhaust gas boosting mechanism is arranged in the boosting pipe (401); a flow guide pipe (23) fixedly mounted on the boost pipe (401) and symmetrically arranged, wherein a conduction regulating mechanism connected to the exhaust gas boost mechanism is arranged in the boost pipe (401), the exhaust gas boost mechanism being capable of operating when exhaust gas enters the boost pipe (401), and regulating the conduction state of the flow guide pipe (23) through the conduction regulating mechanism; A turbulent discharge component, disposed in the guide pipe (23), and used to discharge the exhaust gas in a dispersed state into the processing box (1) when the guide pipe (23) is open; An exhaust gas treatment mechanism is arranged in the treatment box (1), and the exhaust gas treatment mechanism can evenly spray the treatment liquid in the treatment box (1).

2. The exhaust gas purification equipment according to claim 1, characterized in that: The exhaust gas boosting mechanism comprises a rotating rod (10) rotatably mounted in the boosting pipe (401), a symmetrically arranged guide column (11) being fixedly mounted in the boosting pipe (401), a sealing disk (14) slidably mounted on the guide column (11) and connected in a sliding sealing manner to the boosting pipe (401), and a guide assembly connected to the sealing disk (14) being arranged on the rotating rod (10).

3. The exhaust gas purification equipment according to claim 2, characterized in that: The guide assembly comprises a guide groove formed on the rotating rod (10); a first movable sleeve (12) fixedly connected to the sealing disk (14) is slidably mounted on the rotating rod (10); a first limit block (13) is fixed to an inner wall of the first movable sleeve (12); and the first limit block (13) is slidably connected to the guide groove.

4. The exhaust gas purification equipment according to claim 3, characterized in that: The conduction regulating mechanism comprises a spiral groove (1005) provided on the rotating rod (10); a second movable sleeve (15) is slidably mounted on the rotating rod (10); a second limit block (16) is fixed to the inner wall of the second movable sleeve (15); the second limit block (16) is slidably connected to the spiral groove (1005); and an elastic component connected to the second movable sleeve (15) is provided on the rotating rod (10).

5. The exhaust gas purification equipment according to claim 4, characterized in that: The elastic component comprises a connecting plate (17) fixedly mounted on the second movable sleeve (15) and slidably connected to the guide column (11); a second spring (19) is sleeved on the rotating rod (10) and abuts against the connecting plate (17); a first spring (18) is sleeved on the guide column (11); two ends of the first spring (18) abut against the sealing disk (14) and the connecting plate (17) respectively; and a blocking structure is also provided on the rotating rod (10).

6. The exhaust gas purification equipment according to claim 5, characterized in that: The blocking structure comprises an exhaust hole (22) formed on the boost pipe (401) and connected to the flow guide pipe (23); a support rod (20) is fixed to the rotating rod (10); blocking plates (21) are fixed at both ends of the support rod (20); and the blocking plates (21) are in contact with the exhaust hole (22).

7. The exhaust gas purification equipment according to claim 1, characterized in that: The spoiler discharge assembly comprises a spiral guide rail (24) fixedly mounted in the guide pipe (23), and a guide plate (25) is rotatably mounted on the end of the guide pipe (23).

8. The exhaust gas purification equipment according to claim 1, characterized in that: The waste gas treatment mechanism comprises a transmission rod (5) rotatably mounted in the treatment box (1), the transmission rod (5) being provided with a plurality of discharge holes (501) distributed at equal intervals, a plurality of stirring blades (6) distributed at equal intervals around a circle being fixed to the transmission rod (5), and a conveying assembly connected to the transmission rod (5) being arranged in the treatment box (1).

9. The exhaust gas purification equipment according to claim 8, characterized in that: The conveying assembly comprises a hollow tube (8) fixedly mounted in the processing box (1) and sleeved on the transmission rod (5); the hollow tube (8) is connected to a conveying tube (9) passing through the processing box (1); and the transmission rod (5) is provided with a through groove (7) connected to the hollow tube (8).

10. A method for purifying electroplating waste gas, using the waste gas purification equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When the exhaust gas is transported to the air collecting hood (4) through the air supply pipe (2), the exhaust gas will enter the boost pipe (401) through the air collecting hood (4); Step 2: As the amount of exhaust gas increases, the air pressure in the boost pipe (401) increases, thereby driving the exhaust gas boost mechanism to move. When the pressure in the boost pipe (401) reaches a certain value, the exhaust gas boost mechanism drives the conduction control mechanism to move, so that the flow guide pipe (23) is conducted. Step 3: At this time, the exhaust gas in the boost pipe (401) will enter the guide pipe (23), and under the action of the spoiler emission component, the exhaust gas will enter the treatment box (1) at multiple angles; Step 4: At the same time, under the action of the waste gas treatment mechanism, the treatment liquid is sprayed into the treatment box (1), and the contact area between the treatment liquid and the waste gas is large, thereby accelerating the treatment efficiency of the waste gas.

Images