VOCs organic waste gas treatment tower

Abstract

The invention discloses a VOCs organic waste gas treatment tower, and relates to the field of VOCs organic waste gas treatment.The VOCs organic waste gas treatment tower comprises a tower body and a spraying frame installed on the inner side of the tower body, a cyclone machine is installed on the inner side of the tower body, a reaction tank is arranged on the inner side of the tower body, a gas inlet pipe and a material injection pipe are installed on the outer side of the tower body, and a discharge valve is installed on the outer side of the tower body; the gas injection mechanism is used for fully neutralizing waste gas and a neutralizing agent, is mounted on the inner side of the tower body, and comprises two gas injection pipes which are symmetrically and fixedly mounted at the bottom of the reaction tank; through the gas injection mechanism, the gas inlet pipe and the material injection pipe can temporarily store waste gas and a neutralizing agent respectively, the waste gas and the neutralizing agent are injected into the reaction tank through the gas injection pipe, and then the next batch of waste gas and the neutralizing agent are temporarily stored, so that the waste gas and the neutralizing agent in the reaction tank are fully neutralized, and the treatment efficiency of the waste gas is improved; the waste gas can be conveniently sprayed.

Description

Technical Field

[0001] This invention relates to the field of VOCs organic waste gas treatment, specifically a VOCs organic waste gas treatment tower. Background Technology

[0002] VOCs, or volatile organic compounds, are substances that easily volatilize into gases and enter the air, forming organic waste gases. Among them, benzene series compounds, formaldehyde, and vinyl chloride are highly toxic substances that are widely present in industrial production and daily life, causing certain harm to the environment and human health, and need to be treated in a timely manner.

[0003] In VOCs organic waste gas treatment systems, the spray tower is the core pretreatment equipment, mainly responsible for purifying impurities in the waste gas and regulating its state. When pretreating VOCs waste gas containing high concentrations of gaseous acid and alkali impurities, it is necessary to treat the waste gas by combining rapid load reduction through gas neutralization with deep purification through the spray tower. This can improve the removal efficiency of acid and alkali impurities and provide qualified inlet conditions for subsequent catalytic combustion and bio-trickling filtration. First, the waste gas and neutralizing agent are sent to the reaction tank for mixing, and then the residual ammonia is further neutralized by spraying dilute sulfuric acid solution through the spray tower. In order to improve the gas neutralization efficiency, the existing spray tower will temporarily store the waste gas in the inlet chamber. When the gas pressure in the inlet chamber increases, it will compress the piston equipped with a spring to release the waste gas in the inlet chamber. However, when the gas pressure in the inlet chamber decreases, the piston will immediately rebound, making it difficult to ensure the full discharge of waste gas, resulting in insufficient exhaust and affecting the mixing of waste gas and neutralizing agent. Summary of the Invention

[0004] The purpose of this invention is to provide a VOCs organic waste gas treatment tower to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A VOCs (volatile organic compounds) waste gas treatment tower includes: a tower body and a spray frame fixedly installed inside the tower body; a hydrocyclone fixedly installed below the spray frame on the inner side of the tower body; a reaction tank disposed on the inner side of the tower body; an air inlet pipe and a material injection pipe fixedly installed on the outer side of the tower body; and a discharge valve fixedly installed on the outer side of the tower body. The tower also includes: an injection mechanism for fully neutralizing the waste gas with a neutralizing agent; the injection mechanism is installed on the inner side of the tower body and includes two injection pipes symmetrically fixedly installed at the bottom of the reaction tank. Waste gas and neutralizing agent are injected into the reaction tank separately; an exhaust mechanism is used to discharge the neutralized waste gas from the reaction tank, the exhaust mechanism is installed on the top of the reaction tank, the exhaust mechanism includes a sealing cover set on the top of the reaction tank, the sealing cover can discharge the neutralized waste gas into the tower body; a metering mechanism is used to meterly inject waste gas and neutralizing agent into the reaction tank, the metering mechanism is installed on the inner side of the tower body, the metering mechanism includes an adjusting plate set below the reaction tank, the adjusting plate can adjust the injection volume of waste gas and neutralizing agent.

[0007] Preferably, the gas injection mechanism further includes a mounting frame fixedly installed inside the tower body. Two symmetrically distributed circular shells are fixedly installed on the top of the mounting frame. A first sealing disc is rotatably installed on the bottom inner side of each circular shell, and a second sealing disc is rotatably installed on the top inner side of each circular shell. Two symmetrically distributed air inlet pipes are fixedly installed between the first and second sealing discs. The air inlet pipe and the injection pipe are respectively fixedly installed at the bottom of the two circular shells. The ends of the two gas injection pipes away from the reaction vessel are respectively fixedly installed at the top of the two circular shells. Two through holes are provided at the top and bottom of both the first and second sealing discs. A rotating rod is fixedly installed at the bottom of the first sealing disc. A support plate located below the mounting frame is fixedly installed inside the tower body. The end of the rotating rod away from the first sealing disc is rotatably installed inside the support plate. A first transmission wheel is fixedly installed at the end of the rotating rod near the support plate. A first motor is fixedly installed at the bottom of the support plate. A second transmission wheel is fixedly installed at the output end of the first motor, and a transmission belt is rotatably installed between the two first transmission wheels and the second transmission wheel.

[0008] Preferably, the exhaust mechanism further includes a fixing plate fixedly installed inside the tower body, the reaction vessel fixedly installed on the top of the fixing plate, a slide cylinder fixedly installed at the bottom of the sealing cover, the outer side of the slide cylinder contacting the inner side of the reaction vessel, four centrally symmetrically distributed exhaust grooves being provided on both the outer side of the reaction vessel and the outer side of the slide cylinder, an installation rod fixedly installed between the bottom of the sealing cover and the output end of the first motor, the size of the second transmission wheel being twice the size of the first transmission wheel, a rubber ring fixedly installed on the outer side of the slide cylinder, and a first annular groove corresponding to the rubber ring being provided on the inner side of the reaction vessel.

[0009] Preferably, the adjustment mechanism further includes an installation cylinder fixedly installed inside the mounting frame. A threaded cylinder is rotatably installed inside the installation cylinder, and the threaded cylinder is sleeved on the outside of the installation rod. A movable block is threadedly fitted on the outside of the threaded cylinder. Two symmetrically distributed support rods are fixedly installed between the top of the movable block and the adjustment plate. The support rods slide through the top of the installation cylinder. Both ends of the adjustment plate are fixedly connected to the tops of the two circular shells. The circular shells and the air inlet cylinder are both telescopic cylinder structures, and the air injection pipe is a telescopic pipe structure. A second motor is fixedly installed at the bottom of the installation cylinder, and the output end of the second motor is fixedly fitted with meshing gears on the outside of the threaded cylinder. A protective cylinder is fixedly installed at the bottom of the adjustment plate, and the protective cylinder is sleeved on the outside of the installation cylinder. A scale strip is opened on the outside of the installation cylinder.

[0010] Preferably, a plurality of elastic telescopic rods distributed in a centrally symmetrical manner are fixedly installed between the first sealing disc and the second sealing disc.

[0011] Preferably, two sealing rings are fixedly installed on the corresponding side of the first sealing disc and the second sealing disc, and the sealing rings are sleeved on the outside of the air inlet cylinder.

[0012] Preferably, a support frame is fixedly installed at the bottom of the fixing plate, and the air injection pipe is fixedly installed on the outside of the support frame.

[0013] Preferably, the top of the sealing cap has an arc-shaped structure, and the outer diameter of the sealing cap is larger than the outer diameter of the reaction vessel.

[0014] Preferably, the top of the reaction vessel is rotatably mounted with a plurality of centrally symmetrically distributed sliding balls, and the bottom of the sealing cover is provided with a second annular groove for limiting the sliding of the sliding balls.

[0015] Preferably, a turntable is fixedly installed on the outer side of the mounting rod, and two symmetrically distributed limiting rods are fixedly installed on the bottom of the reaction vessel, and an arc-shaped groove is opened on the outer side of the turntable for the limiting rods to slide in a limited manner.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention, through the gas injection mechanism, enables the inlet pipe and the injection pipe to temporarily store the waste gas and the neutralizing agent respectively, and inject them into the reaction tank through the gas injection pipe, and then temporarily store the next batch of waste gas and neutralizing agent, so as to ensure that the waste gas and neutralizing agent in the reaction tank are fully neutralized, thereby improving the waste gas treatment efficiency and facilitating the spray treatment of waste gas.

[0018] 2. The present invention, through the exhaust mechanism, can open the reaction tank with the sealing cover during the movement of the two air inlet cylinders, so as to facilitate the discharge of the neutralized waste gas in the reaction tank into the tower body. When the air inlet cylinder is aligned with the gas injection pipe, the sealing cover can seal the reaction tank again, thereby achieving the effect of automatic exhaust.

[0019] 3. The present invention, through the adjustment mechanism, enables the adjustment plate to press against the circular shell when the height of the adjustment plate is adjusted. The circular shell then contracts to retract the air inlet cylinder, thereby adjusting the height of the air inlet cylinder and facilitating the adjustment of the injection amount of waste gas and neutralizing agent. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the tower body and the spray frame in this invention;

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the support plate and the air injection pipe in this invention;

[0023] Figure 4 This is a partial cross-sectional view of the circular shell and mounting rod in this invention.

[0024] Figure 5 This is a partial cross-sectional view of the air intake cylinder and the first sealing disc in this invention.

[0025] Figure 6 This is a partial cross-sectional view of the sealing cap and mounting rod in this invention.

[0026] Figure 7 This is a schematic diagram of the slide and reaction vessel structure in this invention;

[0027] Figure 8 This is a partial cross-sectional structural diagram of the mounting cylinder and the moving block in this invention.

[0028] In the diagram: 1. Tower body; 2. Spray frame; 3. Hydrocyclone; 4. Reaction tank; 5. Air inlet pipe; 6. Feeding pipe; 7. Discharge valve; 8. Gas injection pipe; 9. Sealing cover; 10. Adjusting plate; 11. Mounting frame; 12. Circular shell; 13. Rotating rod; 14. First sealing disc; 15. Second sealing disc; 16. Air inlet cylinder; 17. First transmission wheel; 18. First motor; 19. Second transmission wheel; 20. Transmission belt; 21. Fixed plate; 22. Slide cylinder; 23. Mounting rod; 24. Rubber ring; 25. Mounting cylinder; 26. Threaded cylinder; 27. Moving block; 28. Support rod; 29. ​​Second motor; 30. Gear; 31. Elastic telescopic rod; 32. Sealing ring; 33. Support frame; 34. Sliding ball; 35. Turntable; 36. Limiting rod; 37. Support plate. Detailed Implementation

[0029] 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.

[0030] Example 1: Please refer to Figures 1-8 The diagram shows a VOCs organic waste gas treatment tower, including a tower body 1 and a spray frame 2 fixedly installed inside the tower body 1. A hydrocyclone 3 is fixedly installed inside the tower body 1 and located below the spray frame 2. A reaction tank 4 is set inside the tower body 1. An air inlet pipe 5 and a material injection pipe 6 are fixedly installed outside the tower body 1. A discharge valve 7 is fixedly installed outside the tower body 1. Waste gas is injected into the reaction tank 4 through the air inlet pipe 5, and a neutralizing agent is injected into the reaction tank 4 through the material injection pipe 6 to neutralize the waste gas. Then, the neutralized waste gas is sprayed with dilute sulfuric acid solution through the hydrocyclone 3 and the spray frame 2 to remove acid and alkali impurities in the waste gas. The treated waste gas is discharged from the top of the tower body 1 for subsequent treatment. The discharge valve 7 can discharge the waste liquid generated during spraying.

[0031] The gas injection mechanism includes two symmetrically fixedly installed gas injection pipes 8 at the bottom of the reaction tank 4. The two gas injection pipes 8 respectively inject waste gas and neutralizing agent into the reaction tank 4. The gas injection mechanism also includes a mounting bracket 11 fixedly installed inside the tower body 1. The top of the mounting bracket 11 is fixedly installed with two symmetrically distributed circular shells 12. A first sealing disc 14 is rotatably installed on the bottom inner side of the circular shell 12, and a second sealing disc 15 is rotatably installed on the top inner side of the circular shell 12. Two symmetrically distributed air inlet cylinders 16 are fixedly installed between the first sealing disc 14 and the second sealing disc 15. The air inlet pipe 5 and the injection pipe 6 are respectively fixedly installed at the bottom of the two circular shells 12. The ends of the two gas injection pipes 8 away from the reaction tank 4 are respectively fixedly installed on the two circular shells. At the top of the 12, both the top and bottom of the first sealing disc 14 and the second sealing disc 15 have two perforations, allowing the air inlet pipe 5 and the injection pipe 6 to be injected into the air inlet cylinder 16 directly above through the perforations at the bottom of the two first sealing discs 14. When the first sealing disc 14 rotates, it can drive the second sealing disc 15 to rotate through the two air inlet cylinders 16. During this process, the first sealing disc 14 can seal the air inlet pipe 5 and the injection pipe 6, and the second sealing disc 15 can seal the injection pipe 8. When the first sealing disc 14 rotates half a turn, the air inlet cylinder 16 containing waste gas and neutralizing agent can be aligned with the injection pipe 8. The two air inlet cylinders 16 containing waste gas and neutralizing agent can inject waste gas and neutralizing agent into the reaction tank 4, while the two empty air inlet cylinders 1... The air inlet pipe 5 and the material injection pipe 6 can be aligned respectively, which facilitates the temporary storage of waste gas and neutralizing agent and the reinjection of waste gas and neutralizing agent into the reaction tank 4. The air injection pipe 8 is connected to the reaction tank 4 through a one-way exhaust valve. A rotating rod 13 is fixedly installed at the bottom of the first sealing plate 14. A support plate 37 located below the mounting frame 11 is fixedly installed on the inner side of the tower body 1. The end of the rotating rod 13 away from the first sealing plate 14 is rotatably installed on the inner side of the support plate 37. A first transmission wheel 17 is fixedly installed at the end of the rotating rod 13 near the support plate 37. A first motor 18 is fixedly installed at the bottom of the support plate 37. A second transmission wheel 19 is fixedly installed at the output end of the first motor 18. A transmission belt is rotatably installed between the two first transmission wheels 17 and the second transmission wheel 19. 20. The first motor 18 can drive the transmission belt 20 to rotate through the second transmission wheel 19, so that the transmission belt 20 drives the two second transmission wheels 19 to rotate synchronously. The two second transmission wheels 19 can then drive the two rotating rods 13 to rotate synchronously. A plurality of elastic telescopic rods 31 are fixedly installed between the first sealing disc 14 and the second sealing disc 15 in a centrally symmetrical distribution. The elasticity of the elastic telescopic rods 31 can be used to make the first sealing disc 14 and the second sealing disc 15 abut against the bottom and top of the inner side of the circular shell 12 respectively, so as to avoid gaps. Two sealing rings 32 are fixedly installed on the corresponding side of the first sealing disc 14 and the second sealing disc 15, and the sealing rings 32 are sleeved on the outside of the air inlet cylinder 16 to improve the sealing performance of the air inlet cylinder 16.

[0032] Example 2: Please refer to Figures 3-7This embodiment further illustrates Example 1. The exhaust mechanism shown in the figure includes a sealing cover 9 disposed on the top of the reaction tank 4. The sealing cover 9 can discharge the neutralized waste gas into the tower body 1. The exhaust mechanism also includes a fixing plate 21 fixedly installed on the inner side of the tower body 1. The reaction tank 4 is fixedly installed on the top of the fixing plate 21. A slide cylinder 22 is fixedly installed on the bottom of the sealing cover 9. The outer side of the slide cylinder 22 is in contact with the inner side of the reaction tank 4. Four centrally symmetrically distributed exhaust grooves are provided on the outer side of both the reaction tank 4 and the outer side of the slide cylinder 22. When the exhaust grooves on the slide cylinder 22 are aligned with the exhaust grooves on the reaction tank 4, the neutralized waste gas in the reaction tank 4 can be discharged outward from the exhaust grooves. When the slide cylinder 22 rotates, the exhaust grooves on the slide cylinder 22 are misaligned with the exhaust grooves on the reaction tank 4. The slide cylinder 22 can seal the exhaust groove of the reaction vessel 4. An mounting rod 23 is fixedly installed between the bottom of the sealing cover 9 and the output end of the first motor 18. The size of the second transmission wheel 19 is twice that of the first transmission wheel 17, allowing the first motor 18 to drive the sealing cover 9 to rotate via the mounting rod 23. The sealing cover 9, in turn, drives the slide cylinder 22 to rotate. Because the size of the second transmission wheel 19 is twice that of the first transmission wheel 17, when the first sealing disc 14 rotates 90 degrees, the two air inlets 16 are misaligned with the gas injection pipe 8, and the sealing cover 9 can rotate 45 degrees. The exhaust groove on the slide cylinder 22 aligns with the exhaust groove of the reaction vessel 4, facilitating the discharge of neutralized waste gas from the reaction vessel 4. Furthermore, when the air inlets 16 are aligned with the gas injection pipe 8, the exhaust groove on the slide cylinder 22 aligns with... The exhaust channels of reaction tank 4 are staggered, which can seal reaction tank 4 and facilitate the injection of waste gas and neutralizing agent into reaction tank 4. A rubber ring 24 is fixedly installed on the outside of the slide cylinder 22, and a first annular groove corresponding to the rubber ring 24 is opened on the inside of reaction tank 4. The cooperation between the rubber ring 24 and the first annular groove improves the sealing performance of slide cylinder 22 to reaction tank 4. The top of the sealing cover 9 has an arc-shaped structure, and the outer diameter of the sealing cover 9 is larger than the outer diameter of reaction tank 4, which facilitates the downward spraying of waste liquid from spray frame 2 along the top of sealing cover 9 and prevents waste liquid from entering reaction tank 4. Multiple centrally symmetrically distributed sliding balls 34 are rotatably installed on the top of reaction tank 4, and a second annular groove is opened at the bottom of sealing cover 9 for limiting the sliding of sliding balls 34. When sealing cover 9 rotates, The mounting rod 23 can drive the ball bearing 34 to slide along the second annular groove on the sealing cover 9, reducing the wear between the sealing cover 9 and the reaction vessel 4. A turntable 35 is fixedly installed on the outside of the mounting rod 23. Two symmetrically distributed limiting rods 36 are fixedly installed on the bottom of the reaction vessel 4. An arc-shaped groove is opened on the outside of the turntable 35 to limit the sliding of the limiting rods 36. When the mounting rod 23 rotates, it can drive the turntable 35 to rotate synchronously. The arc-shaped groove on the turntable 35 can move along the outside of the limiting rods 36, providing a limit for the rotation of the mounting rod 23 and ensuring that the exhaust groove on the slide cylinder 22 is aligned with the exhaust groove of the reaction vessel 4. A support frame 33 is fixedly installed on the bottom of the fixing plate 21, and the gas injection pipe 8 is fixedly installed on the outside of the support frame 33, so that the support frame 33 provides auxiliary support for the gas injection pipe 8.

[0033] Example 3: Please refer to Figures 3-8 This embodiment further illustrates other embodiments. The regulating mechanism shown in the figure includes an regulating plate 10 disposed below the reaction tank 4. The regulating plate 10 can regulate the injection volume of waste gas and neutralizing agent. The regulating mechanism also includes a mounting cylinder 25 fixedly installed inside the mounting frame 11. A threaded cylinder 26 is rotatably installed inside the mounting cylinder 25, and the threaded cylinder 26 is sleeved on the outside of the mounting rod 23. A moving block 27 is threadedly fitted on the outside of the threaded cylinder 26. Two symmetrically distributed support rods 28 are fixedly installed between the top of the moving block 27 and the regulating plate 10. The support rods 28 slide through the top of the mounting cylinder 25. The two ends of the regulating plate 10 are respectively fixedly connected to the tops of two circular shells 12. Both the circular shells 12 and the air inlet cylinder 16 are telescopic cylinder structures, and the air injection pipe 8 is a telescopic pipe structure. When the threaded cylinder 26 rotates, it can drive the two support rods 26 through the moving block 27. 8. Moving along the inner side of the mounting cylinder 25, the support rod 28 pulls the adjusting plate 10 to move, so that the adjusting plate 10 presses the circular shell 12, and the circular shell 12 can retract to retract the air inlet cylinder 16. Adjusting the height of the air inlet cylinder 16 can adjust the storage capacity of the air inlet cylinder 16. The bottom of the mounting cylinder 25 is fixedly installed with a second motor 29, and the output end of the second motor 29 and the outer side of the threaded cylinder 26 are both fixedly installed with meshing gears 30, so that the second motor 29 can drive the threaded cylinder 26 to rotate through the two gears 30. The bottom of the adjusting plate 10 is fixedly installed with a protective cylinder, and the protective cylinder is sleeved on the outer side of the mounting cylinder 25. The outer side of the mounting cylinder 25 is provided with a scale strip. When the adjusting plate 10 moves, it can drive the protective cylinder to move along the outer side of the mounting cylinder 25, and the moving height of the adjusting plate 10 can be observed with the help of the scale strip.

[0034] Working principle: First, the operator connects the exhaust gas pipe to the intake pipe 5 and the neutralizing agent discharge pipe to the injection pipe 6. The intake pipe 5 and injection pipe 6 inject the neutralizing agent into the intake cylinder 16 directly above through the perforations at the bottom of the two first sealing discs 14, respectively. This fills the two intake cylinders 16 inside the two circular shells 12 with exhaust gas and neutralizing agent, respectively. Then, the first motor 18 drives the second transmission wheel 19 to rotate 90 degrees. The second transmission wheel 19 drives the two first transmission wheels 17 to rotate 180 degrees through the transmission belt 20. The two second transmission wheels 19 drive the two first sealing discs 14 to rotate, respectively. The first sealing discs 14 drive the second sealing discs 15 to rotate synchronously through the elastic telescopic rod 31, thus making the first sealing discs 14 rotate. The first sealing disc 14 and the second sealing disc 15 drive the corresponding two air inlet cylinders 16 to perform circular motion. During this process, the first sealing disc 14 can seal the air inlet pipe 5 and the injection pipe 6, and the second sealing disc 15 can seal the injection pipe 8. After the first sealing disc 14 rotates 180 degrees, the two air inlet cylinders 16 containing waste gas and neutralizing agent are aligned with the two injection pipes 8 respectively. The waste gas and neutralizing agent enter the reaction tank 4 through the two injection pipes 8, so that the waste gas and neutralizing agent are fully neutralized. At the same time, the other two empty air inlet cylinders 16 are aligned with the air inlet pipe 5 and the injection pipe 6 respectively, so that the air inlet pipe 5 and the injection pipe 6 continue to inject waste gas and neutralizing agent into the two empty air inlet cylinders 16. Thus, with the intermittent rotation of the first motor 18... Intermittent operation allows the air inlet cylinders 16 inside the two circular shells 12 to intermittently inject waste gas and neutralizing agent into the reaction tank 4. Simultaneously, the first motor 18 drives the mounting rod 23 to rotate synchronously, causing the mounting rod 23 to drive the sealing cover 9 to rotate synchronously. The sealing cover 9 drives the sliding cylinder 22 to rotate along the inner side of the reaction tank 4. Since the size of the second transmission wheel 19 is twice that of the first transmission wheel 17, when the first sealing disc 14 rotates 90 degrees, the mounting rod 23 can drive the sealing cover 9 to rotate 45 degrees, allowing the circular shells 12 to seal the perforations of the first sealing disc 14 and the second sealing disc 15. The two air inlet cylinders 16 are staggered from the gas injection pipe 8, and the exhaust grooves on the sliding cylinder 22 are aligned with the exhaust grooves of the reaction tank 4. The system is designed to allow the neutralized waste gas in reaction tank 4 to enter tower body 1 through the exhaust trough. Then, the mounting rod 23 rotates 90 degrees to offset the exhaust trough on the slide cylinder 22 from the exhaust trough on reaction tank 4, thus sealing reaction tank 4. The two air inlets 16, containing waste gas and neutralizing agent, are aligned with the two air injection pipes 8, allowing the waste gas and neutralizing agent to enter the empty reaction tank 4, thus achieving automatic opening and closing of reaction tank 4. Finally, the hydrocyclone 3 and the spray frame 2 spray dilute sulfuric acid solution onto the neutralized waste gas to remove acid and alkali impurities. The treated waste gas is discharged from the top of tower body 1 for subsequent processing. The discharge valve 7 can discharge the waste liquid generated during spraying, thereby improving the waste gas treatment efficiency.

[0035] When the amount of waste gas and neutralizing agent to be processed needs to be adjusted, the operator starts the second motor 29. The second motor 29 drives the threaded cylinder 26 to rotate through two gears 30. The threaded cylinder 26 drives two support rods 28 to move along the inner side of the mounting cylinder 25 through the moving block 27. The support rods 28 pull the adjusting plate 10 to move, so that the adjusting plate 10 presses the two circular shells 12. The circular shells 12 are in a contracted state and contract the air inlet cylinder 16, so as to adjust the storage capacity of the air inlet cylinder 16. This makes it easy to adjust the amount of waste gas and neutralizing agent injected according to the processing needs, thereby improving the convenience of waste gas and neutralizing agent injection.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A VOCs organic waste gas treatment tower, characterized in that, include: The tower body (1) and the spray rack (2) installed inside the tower body (1), the hydrocyclone (3) is installed inside the tower body (1), the reaction tank (4) is installed inside the tower body (1), the air inlet pipe (5) and the material injection pipe (6) are installed outside the tower body (1), and the discharge valve (7) is installed outside the tower body (1). Also includes: The gas injection mechanism is used to fully neutralize the waste gas and the neutralizing agent. The gas injection mechanism is installed on the inner side of the tower body (1). The gas injection mechanism includes two gas injection pipes (8) that are symmetrically fixedly installed at the bottom of the reaction tank (4). The two gas injection pipes (8) respectively inject the waste gas and the neutralizing agent into the reaction tank (4). An exhaust mechanism is used to discharge the neutralized waste gas from the reaction tank (4). The exhaust mechanism is installed on the top of the reaction tank (4). The exhaust mechanism includes a sealing cover (9) disposed on the top of the reaction tank (4). The sealing cover (9) can discharge the neutralized waste gas into the tower body (1). A metering mechanism is used to quantitatively inject waste gas and neutralizing agent into the reaction tank (4). The metering mechanism is installed on the inner side of the tower body (1). The metering mechanism includes an adjustment plate (10) located below the reaction tank (4). The adjustment plate (10) can adjust the injection amount of waste gas and neutralizing agent.

2. The VOCs organic waste gas treatment tower according to claim 1, characterized in that: The gas injection mechanism also includes a mounting bracket (11) installed inside the tower body (1). Two circular shells (12) are mounted on the top of the mounting bracket (11). A first sealing disc (14) is rotatably mounted on the bottom inner side of the circular shell (12), and a second sealing disc (15) is rotatably mounted on the top inner side of the circular shell (12). Two symmetrically distributed air inlet cylinders (16) are installed between the first sealing disc (14) and the second sealing disc (15). The air inlet pipe (5) and the injection pipe (6) are respectively installed at the bottom of the two circular shells (12), and one end of the two gas injection pipes (8) is respectively installed on the two circular shells (12). At the top, the first sealing disc (14) and the second sealing disc (15) each have two through holes at the top and bottom. A rotating rod (13) is fixedly installed at the bottom of the first sealing disc (14). A support plate (37) is installed on the inner side of the tower body (1). One end of the rotating rod (13) is rotatably installed on the inner side of the support plate (37) and a first transmission wheel (17) is fixedly installed thereon. A first motor (18) is installed at the bottom of the support plate (37). A second transmission wheel (19) is fixedly installed at the output end of the first motor (18). A transmission belt (20) is rotatably installed between the two first transmission wheels (17) and the second transmission wheel (19).

3. The VOCs organic waste gas treatment tower according to claim 2, characterized in that: The exhaust mechanism also includes a fixing plate (21) installed on the inner side of the tower body (1), the reaction tank (4) is installed on the top of the fixing plate (21), the bottom of the sealing cover (9) is equipped with a slide cylinder (22), the outer side of the slide cylinder (22) is in contact with the inner side of the reaction tank (4), the outer side of the reaction tank (4) and the outer side of the slide cylinder (22) are provided with four centrally symmetrical exhaust grooves, the bottom of the sealing cover (9) is fixedly installed between the bottom of the sealing cover (9) and the output end of the first motor (18), the size of the second transmission wheel (19) is twice the size of the first transmission wheel (17), the outer side of the slide cylinder (22) is equipped with a rubber ring (24), and the inner side of the reaction tank (4) is provided with a first annular groove corresponding to the rubber ring (24).

4. The VOCs organic waste gas treatment tower according to claim 3, characterized in that: The adjustment mechanism also includes an installation cylinder (25) installed inside the mounting frame (11). A threaded cylinder (26) is rotatably installed inside the installation cylinder (25), and the threaded cylinder (26) is sleeved on the outside of the mounting rod (23). A moving block (27) is threadedly fitted on the outside of the threaded cylinder (26). Two support rods (28) are installed between the top of the moving block (27) and the adjusting plate (10). The support rods (28) slide through the top of the installation cylinder (25). The two ends of the adjusting plate (10) are fixedly connected to the tops of the two circular shells (12). The circular shells (12) and the air inlet cylinder (16) are both telescopic cylinder structures, and the air injection pipe (8) is a telescopic pipe structure. A second motor (29) is installed at the bottom of the installation cylinder (25), and a meshing gear (30) is fixedly installed at the output end of the second motor (29) and the outside of the threaded cylinder (26).

5. A VOCs organic waste gas treatment tower according to claim 2, characterized in that: Multiple elastic telescopic rods (31) are installed between the first sealing disc (14) and the second sealing disc (15).

6. The VOCs organic waste gas treatment tower according to claim 2, characterized in that: Two sealing rings (32) are installed on the side corresponding to the first sealing disc (14) and the second sealing disc (15), and the sealing rings (32) are sleeved on the outside of the air inlet cylinder (16).

7. A VOCs organic waste gas treatment tower according to claim 3, characterized in that: The bottom of the fixed plate (21) is equipped with a support frame (33), and the air injection pipe (8) is installed on the outside of the support frame (33).

8. A VOCs organic waste gas treatment tower according to claim 3, characterized in that: The top of the sealing cap (9) is an arc-shaped structure, and the outer diameter of the sealing cap (9) is larger than the outer diameter of the reaction vessel (4).

9. A VOCs organic waste gas treatment tower according to claim 3, characterized in that: The top of the reaction vessel (4) is rotatably equipped with a plurality of ball bearings (34), and the bottom of the sealing cover (9) is provided with a second annular groove for the ball bearings (34) to slide in a limited manner.

10. A VOCs organic waste gas treatment tower according to claim 3, characterized in that: A turntable (35) is installed on the outside of the mounting rod (23), and two symmetrically distributed limiting rods (36) are installed at the bottom of the reaction vessel (4). An arc-shaped groove is provided on the outside of the turntable (35) for the limiting rods (36) to slide.

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