Environment-friendly engineering construction waste gas treatment device for pre-electroplating of metal materials

Abstract

This invention discloses a waste gas treatment device for environmentally friendly engineering construction of pre-electroplating of metal materials, belonging to the technical field of waste gas treatment devices. It includes a treatment box, with an inlet pipe fixed to the left side and an activated carbon filter box connected to the right side of the treatment box via a conduit. The activated carbon filter box is fixedly connected to an outlet pipe, and a drain pipe is fixed to the lower end face of the treatment box. This waste gas treatment device for environmentally friendly engineering construction of pre-electroplating of metal materials features a mechanically linked spraying and adjusting mechanism. When the waste gas volume increases and the filtration area increases, more atomizing nozzles are automatically opened through gears, racks, and inclined plates, increasing the spray volume. When the waste gas volume decreases, some nozzles are automatically closed. This design ensures that the dosage of spraying chemicals matches the waste gas treatment needs in real time, avoiding the waste of alkali solution at the source, significantly saving chemical costs, and reducing the amount of subsequent neutralized wastewater treatment, thus meeting green environmental protection requirements.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment equipment technology, specifically to a waste gas treatment device for environmental engineering construction of metal pre-electroplating materials. Background Technology

[0002] During the pre-electroplation process of metal materials (such as pickling, activation, etc.), a large amount of acidic waste gas containing hydrochloric acid mist, sulfuric acid mist and other components is generated. If these waste gases are directly discharged, they will seriously pollute the environment and endanger human health. Therefore, it is necessary to use waste gas treatment devices for purification. At present, the spray neutralization method is widely used, which uses alkaline solution (such as sodium hydroxide solution) to neutralize the acidic waste gas, thereby achieving the purpose of purification. However, existing spray treatment devices generally suffer from the following technical defects: Firstly, waste gas treatment systems typically operate at a fixed power output based on maximum design airflow. In actual production, the amount of waste gas generated often fluctuates with the production cycle (e.g., the waste gas volume is small when only a few pretreatment tanks are operating, and large when all are operating). A fixed operating mode leads to excessive energy consumption under low airflow conditions, and an excessively high gas-liquid ratio reduces reaction efficiency. Conversely, under high airflow conditions, a fixed filtration and spray area may result in incomplete treatment. Secondly, spray systems designed to handle maximum loads cause significant waste of spraying agents and generate excessive wastewater requiring subsequent treatment during low-load operation, increasing operating costs. Finally, the neutralization reaction process in traditional devices is mostly passive, resulting in insufficient gas-liquid mixing, affecting the final treatment effect and failing to meet current treatment needs. Summary of the Invention

[0003] The purpose of this invention is to provide an environmentally friendly waste gas treatment device for pre-electroplating of metal materials, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a waste gas treatment device for environmental protection engineering construction of pre-electroplating of metal materials, comprising a treatment box, an air inlet pipe fixed on the left side of the treatment box, an activated carbon filter box connected to the right side of the treatment box via a conduit, the activated carbon filter box being fixedly connected to an air outlet pipe, a drain pipe fixed to the lower end face of the treatment box, the air inlet pipe being connected to an air duct, a one-way air inlet valve being fixed to the lower end of the air duct, the one-way air inlet valve being connected to a fan via a conduit, and the fan being connected to an air collection hood to achieve the function of waste gas extraction; An adjustment mechanism automatically adjusts the exhaust gas filtration area through air pressure; the adjustment mechanism is installed inside the treatment box. A flow-turbulence mechanism is used to create a turbulence effect between the exhaust gas and the spray liquid, thereby ensuring the treatment effect of the exhaust gas. The flow-turbulence mechanism is installed inside the treatment box. The spraying mechanism automatically adjusts the spray volume of the spraying liquid according to the air intake to avoid waste of the spraying liquid. The spraying mechanism is installed on the treatment box and is driven by the adjustment mechanism.

[0005] Preferably, a first frame is fixed on the right side of the treatment box, and a second frame is fixed on the left side of the first frame. A filter screen is fixed on the left side of the second frame, and a bracket is fixed on the upper surface of the treatment box. Through the function of the filter screen, particulate impurities in the exhaust gas can be filtered for subsequent treatment of the exhaust gas.

[0006] Preferably, the adjustment mechanism includes guide grooves that are symmetrically fixed inside the processing box, and the guide grooves are slidably connected to the baffle. The baffle is also slidably connected to the processing box and the storage box. Meanwhile, the storage box is symmetrically fixed to the outside of the processing box. Through the function of the storage box, it can be stored when the baffle moves outward, thus preventing the exhaust gas from overflowing.

[0007] Preferably, a sealing plate is fixed on the side of the baffle facing the filter screen, and the sealing plate cooperates with the filter screen and the treatment box to achieve a seal. Through the function of the sealing plate, the filtration area of ​​the filter screen can be controlled so as to meet the filtration of exhaust gas with different flow rates and improve the adaptability of the device.

[0008] Preferably, the baffle is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the fixed rod. The fixed rod is fixedly connected to the piston, while the piston is slidably connected to the cylinder fixed on the treatment box. The cylinder passes through the treatment box. One end of the piston and the spring are fixed to each other, and the other end of the spring is fixed to the cylinder. Through the action of the piston and the cylinder, when the exhaust gas volume increases, the piston can be driven by air pressure. Combined with the action of the connecting rod, it can provide a basic force for adjusting the position of the baffle, thereby ensuring the normal operation of the device.

[0009] Preferably, the turbulence mechanism includes a rotating shaft with bearings connected to the first frame and the second frame, and turbulence plates are uniformly fixed on the rotating shaft. A fan blade is also fixed at the right end of the rotating shaft, and the fan blade is set inside the flow guide shroud. The flow guide shroud is fixed inside the treatment box. Through the above structure, the turbulence effect between the waste gas and the spray liquid can be realized during the waste gas treatment process, thereby effectively improving the waste gas treatment effect.

[0010] Preferably, the spraying mechanism includes a water inlet pipe fixed on the right side of the treatment tank, and the water inlet pipe is connected to a guide plate fixed inside the treatment tank. The guide plate and the diverter plate are connected, and the diverter plate is fixed inside the treatment tank at equal intervals. Atomizing nozzles are fixed at equal intervals on the lower end face of the diverter plate, and the diverter plate is connected to the atomizing nozzles through the liquid outlet. Through the above structure, the spray liquid can be transported, providing a basic guarantee for the treatment of waste gas from electroplating pretreatment.

[0011] Preferably, the diverter plate and the slide rod are slidably connected, and the lower end of the slide rod is fixed to the sealing plug. The sealing plug cooperates with the liquid outlet of the diverter plate to achieve a seal. The slide rod and the treatment box are slidably connected, and the upper end of the slide rod is fixed to the cross plate. Through the sealing effect of the sealing plug, the output of the spray liquid can be controlled to adapt to the treatment of waste gas with different flow rates. This can improve the adaptability of the device, avoid waste of spray liquid, and effectively reduce the cost of waste gas treatment.

[0012] Preferably, a convex shaft is fixed to the lower end face of the horizontal plate, and the convex shaft is slidably connected to the inclined plate. The inclined plate is symmetrically fixed to the movable plate. The sliding action between the convex shaft and the inclined plate can provide a basic force for the movement of the horizontal plate, thereby providing a basic guarantee for the sealing release of the liquid outlet of the sealing plug and the diverter plate.

[0013] Preferably, the movable plate and the bearing are connected to the bidirectional threaded rod on the treatment box by a threaded connection, and a gear is fixed at the left end of the bidirectional threaded rod. The gear is set in the sealing box, and the sealing box is fixed on the treatment box. The gear is meshed with the toothed rod, the toothed rod is slidably connected to the treatment box, and the toothed rod is fixedly connected to the fixed rod. With the above structure, the driving action of the movable plate can be realized according to the amount of waste gas entering, thereby providing a basic guarantee for the adjustment of the output of the spray liquid.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The waste gas treatment device for environmental protection engineering construction of this metal material pre-electroplating uses a pneumatically driven regulating mechanism to automatically sense changes in waste gas volume. When the waste gas volume is small, the baffle partially blocks the filter screen to maintain a reasonable wind speed and ensure filtration efficiency. When the waste gas volume is large, the air pressure pushes the baffle to contract, increasing the effective filtration area and reducing system resistance. This process does not require external power control, realizing automatic and precise control of the filtration area and effectively reducing fan energy consumption. 2. The waste gas treatment device for environmental protection engineering construction of this metal material pre-electroplating uses a spraying mechanism and an adjustment mechanism that are mechanically linked. When the waste gas volume increases and the filtration area increases, more atomizing nozzles are automatically opened through gears, racks, and inclined plates to increase the spray volume. When the waste gas volume decreases, some nozzles are automatically closed. This design ensures that the dosage of spraying chemicals matches the waste gas treatment needs in real time, avoids the waste of alkali from the source, significantly saves chemical costs, and reduces the amount of subsequent neutralized wastewater treatment, meeting green environmental protection requirements. 3. The waste gas treatment device for environmental protection engineering construction of this metal material pre-electroplating uses a turbulence mechanism to drive the fan blades and turbulence plates to rotate using the kinetic energy of the waste gas itself, which strongly disturbs the airflow and spray water mist, greatly increasing the contact area and mixing degree of the gas and liquid phases, thereby significantly improving the speed and thoroughness of the neutralization reaction and ensuring the stability and efficiency of the waste gas treatment effect. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 3 This is a frontal cross-sectional three-dimensional structural diagram of the processing box of the present invention; Figure 4 This is a frontal cross-sectional three-dimensional structural diagram of the adjustment mechanism of the present invention; Figure 5 This is a side-view three-dimensional structural diagram of the adjustment mechanism of the present invention; Figure 6 This is a frontal three-dimensional structural diagram of the turbulence-disrupting mechanism of the present invention; Figure 7 This is a three-dimensional structural diagram of the spraying mechanism of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the diverter plate of the present invention, viewed from below.

[0016] In the diagram: 1. Processing box; 101. Inlet pipe; 102. Activated carbon filter box; 103. Outlet pipe; 104. Drain pipe; 105. First frame; 106. Second frame; 107. Filter screen; 108. Support; 2. Air duct; 3. One-way inlet valve; 4. Fan; 5. Air collector hood; 6. Adjustment mechanism; 601. Guide groove; 602. Baffle; 603. Storage box; 604. Sealing plate; 605. Connecting rod; 606. Fixing rod; 607. Piston; 608. 609. Cylinder; 700. Spring; 801. Baffle mechanism; 702. Rotating shaft; 703. Baffle plate; 704. Fan blade; 705. Flow guide; 806. Spraying mechanism; 807. Water inlet pipe; 808. Flow guide plate; 809. Diverter plate; 8000. Atomizing nozzle; 801. Slide rod; 802. Sealing plug; 803. Horizontal plate; 804. Convex shaft; 805. Slanted plate; 816. Movable plate; 817. Bidirectional threaded rod; 818. Gear; 819. Sealing box; 810. Convex toothed rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 The present invention provides a technical solution: an environmental protection engineering construction waste gas treatment device for pre-electroplating of metal materials, including a treatment box 1, an air inlet pipe 101 fixed on the left side of the treatment box 1, an activated carbon filter box 102 connected to the right side of the treatment box 1 through a conduit, the activated carbon filter box 102 being fixedly connected to an air outlet pipe 103, a drain pipe 104 being fixed on the lower end face of the treatment box 1, the air inlet pipe 101 being connected to a duct 2, a one-way air inlet valve 3 being fixed at the lower end of the duct 2, the one-way air inlet valve 3 being connected to a fan 4 through a conduit, and the fan 4 being connected to a wind collector hood 5 to achieve the function of waste gas extraction; The regulating mechanism 6 automatically adjusts the exhaust gas filtration area through air pressure. The regulating mechanism 6 is installed inside the treatment box 1. The turbulence mechanism 7 is used to achieve the turbulence effect between the exhaust gas and the spray liquid, so as to ensure the treatment effect of the exhaust gas. The turbulence mechanism 7 is installed in the treatment box 1. The spraying mechanism 8 automatically adjusts the spray volume of the spraying liquid according to the air intake volume to avoid waste of the spraying liquid. The spraying mechanism 8 is installed on the treatment box 1 and is driven by the adjustment mechanism 6.

[0019] When using waste gas treatment equipment for environmental engineering construction involving pre-electroplating of this metal material, such as Figures 1-8 As shown, firstly, the drain pipe 104 is connected to the waste liquid treatment device, and the inlet pipe 801 is connected to the spray liquid storage tank through the conduit and the variable frequency water pump (taking the pickling and activation of metal materials as an example, the waste gas mainly contains acidic waste gases such as hydrochloric acid mist, sulfuric acid mist, and nitric acid mist, and the spray liquid is sodium hydroxide solution). During the use of the device, by installing the air collection hood 5 above the pretreatment tank, and with the action of the fan 4, the acidic waste gas volatilized from the pretreatment tank can be sent into the treatment box 1 through the one-way air inlet valve 3, the air duct 2 and the air inlet pipe 101 for subsequent waste gas treatment operations. Since there are several air collection hoods 5 and fans 4, the acidic waste gas volatilized from multiple pretreatment tanks can be collected at the same time. A first frame 105 is fixed to the right side of the processing box 1, and a second frame 106 is fixed to the left side of the first frame 105. A filter screen 107 is fixed to the left side of the second frame 106. A bracket 108 is fixed to the upper surface of the processing box 1. The adjustment mechanism 6 includes guide grooves 601 that are symmetrically fixed inside the processing box 1. The guide grooves 601 and the baffle 602 are slidably connected. The baffle 602 is also slidably connected to the processing box 1 and the storage box 603. The storage box 603 is symmetrically fixed to the outside of the processing box 1. The baffle 602 faces the... A sealing plate 604 is fixed on one side of the filter screen 107, and the sealing plate 604 cooperates with the filter screen 107 and the treatment box 1 to achieve a seal; the spraying mechanism 8 includes a water inlet pipe 801 fixed on the right side of the treatment box 1, and the water inlet pipe 801 is connected to the guide plate 802 fixed in the treatment box 1, and the guide plate 802 is connected to the diverter plate 803. At the same time, the diverter plate 803 is fixed in the treatment box 1 at equal intervals, and the lower end face of the diverter plate 803 is fixed with atomizing nozzles 804 at equal intervals, and the diverter plate 803 is connected to the atomizing nozzles 804 through the liquid outlet; When the exhaust gas enters treatment chamber 1, if only one pretreatment tank is operating, the amount of acidic exhaust gas entering treatment chamber 1 is relatively small, such as... Figure 4 and Figure 8 As shown, at this time, through the action of the baffle 602 and the sealing plate 604, a portion of the filter screen plate 107 can be blocked, so that the exhaust gas only comes into contact with the filter screen plate 107 between the front and rear baffles 602 for filtration. This can prevent the acidic exhaust gas from coming into full contact with the filter screen plate 107 when the amount is small, ensuring that the airflow speed is within a reasonable range and ensuring that the filter screen plate 107 filters the particulate matter in the acidic exhaust gas. The filtered exhaust gas moves to the right. At this time, the sodium hydroxide solution enters the guide plate 802 through the variable frequency water pump, conduit and inlet pipe 801, and is dispersed into multiple diversion plates 803 through the guide plate 802. At this time, since the sealing plug 806 in the middle position is in a matching sealing device with the liquid outlet of the diversion plate 803, only the sealing plugs 806 on the left and right sides are in a separated state with the liquid outlet of the diversion plate 803. Thus, the sodium hydroxide solution entering the diversion plate 803 can only enter the atomizing nozzle 804 through the liquid outlet of the diversion plate 803 that is in a de-sealed state. This allows the amount of sodium hydroxide solution used to be reduced when the amount of acidic exhaust gas is small, avoiding excessive sodium hydroxide solution that would cause the pH value to be too high. This can save on reagent costs and reduce the cost of subsequent neutralization wastewater treatment. The turbulence mechanism 7 includes a rotating shaft 701 connected to the first frame 105 and the second frame 106 by bearings, and turbulence plates 702 are evenly fixed on the rotating shaft 701. A fan blade 703 is also fixed at the right end of the rotating shaft 701. The fan blade 703 is arranged inside the flow guide 704, and the flow guide 704 is fixed inside the processing box 1. The neutralized waste gas continues to move to the right and enters the guide hood 704. At this time, under the action of the airflow, the fan blades 703 can be driven to rotate, thereby driving the rotating shaft 701 and the baffle 702 to rotate. Through the action of the baffle 702, the acidic waste gas and sodium hydroxide water mist undergoing neutralization reaction can be turbulent, accelerating the contact and fusion of the acidic waste gas and sodium hydroxide water mist, ensuring the treatment effect of acidic waste gas. The waste gas after neutralization reaction is discharged into the waste liquid treatment device through the drain pipe 104 for subsequent treatment. The waste gas after neutralization enters the activated carbon filter box 102 through the guide hood 704 for secondary purification treatment, and finally is discharged through the exhaust pipe 103, thus completing the treatment of acidic waste gas. The baffle 602 is rotatably connected to one end of the connecting rod 605, and the other end of the connecting rod 605 is rotatably connected to the fixed rod 606. The fixed rod 606 is fixedly connected to the piston 607, and the piston 607 is slidably connected to the cylinder 608 fixed on the processing box 1. The cylinder 608 passes through the processing box 1. The piston 607 is fixed to one end of the spring 609, and the other end of the spring 609 is fixed to the cylinder 608. During device operation, when multiple pretreatment tanks work simultaneously, the amount of acidic waste gas entering the treatment chamber 1 increases. This makes it difficult for the unshielded filter screen 107 to meet the filtration requirements of the large flow of acidic waste gas, thus increasing the air pressure on the left side of the filter screen 107. This air pressure causes the piston 607 to slide upwards within the cylinder 608. At this time, the spring 609 contracts under pressure. As the piston 607 moves upwards, it simultaneously drives the fixed rod 606 to move upwards. Combined with the transmission action of the connecting rod 605, this causes the baffle 602 to slide outside the treatment chamber 1 and enter the collection box 603, thereby reducing the shielding area of ​​the filter screen 107 and increasing its effectiveness in filtering waste gas. The filtration area of ​​the gas is adjusted until the piston 607 remains stable under the action of air pressure. According to the above principle, when the amount of acidic waste gas decreases, the piston 607 can be moved down under the elastic action of the spring 609, thereby increasing the shielding area of ​​the baffle 602 on the filter screen 107, and thus reducing the filtration area of ​​the filter screen 107 on the waste gas, so as to achieve adaptive adjustment to meet the treatment requirements of acidic waste gas with different flow rates. During the movement of the baffle 602, the sealing plate 604 is moved synchronously. Through the contact sliding between the sealing plate 604 and the filter screen 107, the particles adhering to the surface of the filter screen 107 can be cleaned to ensure the filtration effect of the filter screen 107. The flow divider 803 and the slide rod 805 are slidably connected, and the lower end of the slide rod 805 is fixed to the sealing plug 806. The sealing plug 806 cooperates with the liquid outlet of the flow divider 803 to achieve a seal. The slide rod 805 is slidably connected to the treatment tank 1, and the upper end of the slide rod 805 is fixed to the horizontal plate 807. A convex shaft 808 is fixed to the lower end face of the horizontal plate 807, and the convex shaft 808 is slidably connected to the inclined plate 809. The inclined plate 809 is symmetrically fixed to the movable plate. On plate 810; the movable plate 810 and the double-threaded rod 811 connected to the bearing on the processing box 1 are threadedly connected, and a gear 812 is fixed at the left end of the double-threaded rod 811. The gear 812 is set in the sealing box 813, and the sealing box 813 is fixed on the processing box 1. The gear 812 and the toothed rod 814 are meshed, and the toothed rod 814 and the processing box 1 are slidably connected. The toothed rod 814 and the fixed rod 606 are fixedly connected. During the operation of the device, when multiple pretreatment tanks work simultaneously, increasing the amount of acidic waste gas entering the treatment tank 1, the fixed rod 606 moves upward under force, simultaneously driving the toothed rod 814 to slide upward under force. Combined with the meshing transmission between the toothed rod 814 and the gear 812, the bidirectional threaded rod 811 rotates under force. Furthermore, the threaded connection between the bidirectional threaded rod 811 and the movable plate 810 causes the left and right movable plates 810 to move towards each other, thus simultaneously driving the left and right sets of inclined plates 809 to move towards each other. Combined with the sliding guide effect between the inclined plates 809 and the support 108, the stability of the inclined plates 809's movement is ensured. Moreover, during the movement of the inclined plates 809, when the inclined plates 809 contact the lower-positioned convex shaft 808... During sliding, the convex shaft 808 moves upward under force, simultaneously driving the corresponding horizontal plate 807 to move upward under force. This causes several sliding rods 805 in the corresponding column to move upward under force, thereby causing several sealing plugs 806 in the corresponding column to separate from the liquid outlet of the diverter plate 803 and release the sealing effect. This allows the atomizing nozzles 804 in the corresponding position to spray sodium hydroxide water mist. At this time, the power of the variable frequency water pump increases to ensure stable sodium hydroxide water pressure. The upward movement distance of the fixed rod 606 is proportional to the acidic waste gas volume, and the number of atomizing nozzles 804 that are unsealed is exactly proportional to the upward movement distance of the fixed rod 606. That is, when the acidic waste gas volume increases, the spray volume of sodium hydroxide is increased by increasing the number of atomizing nozzles 804 to automatically adapt to the neutralization requirements of different acidic waste gas volumes. When the amount of acidic waste gas decreases, according to the above principle, the two sets of inclined panels 809 move relative to each other. When the inclined panel 809 separates from the convex shaft 808, the corresponding longitudinal slide bar 805 moves downward under the action of gravity under the action of gravity under the action of gravity, thereby sealing the corresponding longitudinal atomizing nozzle 804, thereby reducing the amount of sodium hydroxide sprayed, avoiding the waste of sodium hydroxide, and better meeting the current green and environmental protection requirements.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A waste gas treatment device for environmental protection engineering construction of pre-electroplating of metal materials, comprising a treatment box (1), wherein an air inlet pipe (101) is fixed on the left side of the treatment box (1), and an activated carbon filter box (102) is connected to the right side of the treatment box (1) via a conduit, the activated carbon filter box (102) is fixedly connected to an air outlet pipe (103), and a drain pipe (104) is fixed on the lower end face of the treatment box (1), characterized in that: The air inlet pipe (101) is connected to the air duct (2). A one-way air inlet valve (3) is fixed at the lower end of the air duct (2). The one-way air inlet valve (3) is connected to the fan (4) through a conduit. The fan (4) is connected to the air collection hood (5) to achieve the function of exhaust gas extraction. The regulating mechanism (6) automatically adjusts the waste gas filtration area through air pressure. The regulating mechanism (6) is installed inside the treatment box (1). The turbulence mechanism (7) is used to achieve the turbulence effect between the exhaust gas and the spray liquid, so as to ensure the treatment effect of the exhaust gas. The turbulence mechanism (7) is installed in the treatment box (1). The spraying mechanism (8) automatically adjusts the spraying volume of the spraying liquid according to the air intake volume to avoid waste of the spraying liquid. The spraying mechanism (8) is installed on the treatment box (1) and is driven by the adjustment mechanism (6). The adjustment mechanism (6) includes guide grooves (601) symmetrically fixed inside the processing box (1), and the guide grooves (601) are slidably connected to the baffle (602). The baffle (602) is also slidably connected to the processing box (1) and the storage box (603). The storage box (603) is symmetrically fixed to the outside of the processing box (1). A sealing plate (604) is fixed on the side of the baffle (602) facing the filter screen (107). The sealing plate (604) cooperates with the filter screen (107) and the processing box (1) to achieve a seal. The baffle (602) is rotatably connected to one end of the connecting rod (605), and the other end of the connecting rod (605) is rotatably connected. The fixed rod (606) is fixedly connected to the piston (607), and the piston (607) is slidably connected to the cylinder (608) fixed on the treatment box (1). The cylinder (608) passes through the treatment box (1). One end of the piston (607) is fixed to the spring (609), and the other end of the spring (609) is fixed to the cylinder (608). The spraying mechanism (8) includes an inlet pipe (801) fixed on the right side of the treatment box (1), and the inlet pipe (801) is connected to the guide plate (802) fixed inside the treatment box (1). The guide plate (802) passes through the diverter plate (803), and the diverter plate (803) passes through the diverter plate (803). The flow divider (803) is fixed at equal intervals inside the processing box (1). Atomizing nozzles (804) are fixed at equal intervals on the lower end face of the flow divider (803), and the flow divider (803) is connected to the atomizing nozzles (804) through the liquid outlet. The flow divider (803) and the slide rod (805) are slidably connected. The lower end of the slide rod (805) is fixed to the sealing plug (806), and the sealing plug (806) cooperates with the liquid outlet of the flow divider (803) to achieve sealing. The slide rod (805) and the processing box (1) are slidably connected. The upper end of the slide rod (805) is fixed to the horizontal plate (807). A convex shaft (808) is fixed on the lower end face of the horizontal plate (807), and the convex shaft (808) is fixed to the horizontal plate (807). 08) is slidably connected to the inclined plate (809), and the inclined plate (809) is symmetrically fixed on the movable plate (810). The movable plate (810) is threadedly connected to the double-threaded rod (811) connected to the bearing on the processing box (1). A gear (812) is fixed at the left end of the double-threaded rod (811), and the gear (812) is set in the sealing box (813). At the same time, the sealing box (813) is fixed on the processing box (1). The gear (812) is meshed with the toothed rod (814), and the toothed rod (814) is slidably connected to the processing box (1). The toothed rod (814) is fixedly connected to the fixed rod (606).

2. The waste gas treatment device for environmental protection engineering construction of metal pre-electroplating according to claim 1, characterized in that: The processing box (1) has a first frame (105) fixed on the right side, and a second frame (106) fixed on the left side of the first frame (105), and a filter screen (107) fixed on the left side of the second frame (106). The processing box (1) has a bracket (108) fixed on the upper surface.

3. The waste gas treatment device for environmental protection engineering construction of metal material pre-electroplating according to claim 2, characterized in that: The turbulence mechanism (7) includes a rotating shaft (701) with bearings connected to the first frame (105) and the second frame (106), and turbulence plates (702) are evenly fixed on the rotating shaft (701). A fan blade (703) is also fixed at the right end of the rotating shaft (701), and the fan blade (703) is set inside the flow guide (704), which is fixed inside the processing box (1).

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