VOC waste gas degradation system

Abstract

The utility model relates to the technical field of VOC waste gas degradation equipment, and discloses a VOC waste gas degradation system which comprises a reaction tank and a fixing frame, a control panel is fixedly arranged on one side of the upper end of the reaction tank, a liquid conveying pipe is fixedly connected to the side edge of one side of the reaction tank, a liquid storage tank is fixedly connected to the end, away from the reaction tank, of the liquid conveying pipe, and the liquid storage tank is fixedly connected to the other end of the liquid conveying pipe. A first exhaust pipe is fixedly connected to the upper end, located at the output end, of the reaction tank. According to the device disclosed by the utility model, during actual use, through the arrangement of an activated carbon adsorption part quick replacement structure, when the toluene adsorption performance of the activated carbon of the device is close to failure, the failed activated carbon is quickly replaced, so that the waste gas adsorption material replacement efficiency of the device is effectively improved; and the actual working efficiency of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of VOC waste gas degradation equipment, in particular to a VOC waste gas degradation system. Background Art

[0002] VOC waste gas refers to waste gas containing volatile organic compounds, and this type of waste gas is mainly composed of toluene, benzene, etc. This type of waste gas usually has certain toxicity, so there will be special VOC waste gas degradation equipment to degrade this type of waste gas and treat it harmlessly.

[0003] However, the existing VOC waste gas degradation equipment has certain defects in actual use, which is usually reflected in the fact that the commonly used means for VOC waste gas are mostly activated carbon adsorption treatment as a treatment method for the subsequent process of waste gas degradation. However, the existing equipment has certain limitations on the efficiency of replacing activated carbon adsorbents that are close to failure. Therefore, those skilled in the art provide a VOC waste gas degradation system to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a VOC waste gas degradation system. The designed VOC waste gas degradation system solves the disadvantage that the existing equipment has certain limitations on the replacement operation efficiency of activated carbon adsorbents that are close to failure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A VOC waste gas degradation system comprises a reaction tank and a fixed frame, wherein a control panel is fixedly arranged at a position on one side of the upper end of the reaction tank, a liquid infusion tube is fixedly connected to a side edge of one side of the reaction tank, an end of the liquid infusion tube away from the reaction tank is fixedly connected to a liquid storage tank, a first exhaust pipe is fixedly connected to the upper end of the reaction tank at a position located at an output end, a first adsorption cylinder is fixedly connected to an end of the first exhaust pipe away from the reaction tank, a rotating rod is rotatably connected between the frame bodies of the fixed frame, a pair of connecting members are symmetrically fixedly connected to both sides of the rod body of the rotating rod, and the upper and lower ends of the pair of connecting members are fixedly connected to limiting rings, the first adsorption cylinder is arranged on the inner side of a pair of limiting rings on the upper side, and a second adsorption cylinder is limitedly arranged on the inner side of a pair of limiting rings on the lower side, a plurality of limiting frames are fixedly connected to the inner sides of the first adsorption cylinder and the second adsorption cylinder at equal distances, and activated carbon filter plates are fixedly arranged on the inner sides of the plurality of limiting frames;

[0007] Through the above technical scheme, when the device of this design is actually used, the quick replacement structure of the activated carbon adsorption parts is set up, so that when the toluene adsorption performance of the activated carbon is close to failure, the device can quickly replace the failed activated carbon, which effectively improves the efficiency of replacing the waste gas adsorption material of the equipment and effectively improves the actual working efficiency of the device.

[0008] Furthermore, a porous exhaust bottom plate is fixedly arranged at the lower end of the interior of the reaction tank, an air intake pipe is fixedly connected to the lower end of the side of the reaction tank, the output end of the air intake pipe passes through the reaction tank and is fixedly connected to the input end of the porous exhaust bottom plate, a stirring rod is rotatably connected to the middle position of the top end of the interior of the reaction tank, and a plurality of stirring paddles are fixedly connected to the bottom end of the stirring rod at equal distances;

[0009] Through the above technical scheme, when the device of this design is actually used, the high-efficiency soluble particulate impurity filtering structure is set up, so that the device greatly improves the adsorption treatment efficiency of VOCs waste gas, and has the performance of quickly replacing VOCs adsorption solvent, which greatly improves the working efficiency of the device.

[0010] Furthermore, a stirring motor is fixedly arranged at the middle position of the upper end of the reaction tank, the output end of the stirring motor passes through the reaction tank and is fixedly connected to the stirring rod, and the stirring motor is electrically connected to the control panel;

[0011] Through the above technical scheme, the stirring motor arranged at the top of the reaction tank and its electrical connection with the control panel and fixed connection with the stirring rod make it convenient to control the operation of the stirring motor through the control panel, thereby driving the stirring rod in the reaction tank to rotate, and then the stirring paddle on the stirring rod can drive the VOCs adsorption solvent in the reaction tank to circulate and rotate, thereby increasing the contact time and contact area with the VOCs exhaust gas.

[0012] Furthermore, a driving motor is fixedly arranged on the outer side of the fixing frame away from the reaction tank, the output end of the driving motor passes through the fixing frame and is fixedly connected to the rotating rod, and the driving motor is electrically connected to the control panel;

[0013] Through the above technical solution, the drive motor arranged on the outside of the fixed frame and the electrical connection relationship with the control panel and the fixed connection relationship with the rotating rod make it convenient to control the operation of the drive motor through the control panel, thereby driving the rotating rod rotating in the fixed frame body to rotate.

[0014] Furthermore, a discharge pipe is fixedly connected to the position of the tank body of the reaction tank corresponding to the infusion pipe, and a solenoid valve is fixedly arranged at a position of the tank body of the discharge pipe close to the reaction tank, and the solenoid valve is electrically connected to the control panel;

[0015] Through the above technical scheme, the drain pipe arranged on one side of the reaction tank facilitates the discharge of the VOCs adsorption solvent that is close to failure in the reaction tank after the adsorption effect of the VOCs adsorption solvent in the reaction tank is greatly weakened. The solenoid valve arranged on the drain pipe and the electrical connection with the control panel facilitate the opening and closing of the drain pipe to be controlled through the control panel.

[0016] Furthermore, an infusion pump is fixedly arranged at a position of the infusion tube body close to the reaction tank, the infusion pump is electrically connected to the control panel, and a liquid filling port is fixedly connected at the upper end of the liquid storage tank at the position of the input end;

[0017] Through the above technical scheme, the infusion pump arranged on the infusion tube and the electrical connection with the control panel can control the infusion pump to open through the control panel after the nearly ineffective VOCs adsorption solvent in the reaction tank is drained, and the VOCs adsorption solvent in the storage tank is input into the reaction tank. The liquid filling port is provided to facilitate the replenishment of the VOCs adsorption solvent in the storage tank.

[0018] Furthermore, the end of the first adsorption cylinder away from the reaction tank is fixedly connected to the second exhaust pipe, both ends of the first adsorption cylinder and the second adsorption cylinder are fixedly connected to connecting flanges, and the first exhaust pipe and the second exhaust pipe are sealedly connected to the first adsorption cylinder and the second adsorption cylinder through the connecting flanges;

[0019] Through the above technical solution, the second exhaust pipe is set to facilitate the discharge of the gas after adsorption treatment by the adsorption tube, and the connecting flange is set to effectively ensure the connection sealing between the adsorption tube and the first exhaust pipe and the second exhaust pipe.

[0020] Furthermore, a first toluene concentration sensor is fixedly provided at a position of the first exhaust pipe near the reaction tank, and the first toluene concentration sensor is electrically connected to a control panel; a second toluene concentration sensor is fixedly provided at a position of the second exhaust pipe near the first adsorption cylinder, and the second toluene concentration sensor is electrically connected to the control panel;

[0021] Through the above technical scheme, the first toluene concentration sensor and the electrical connection relationship with the control panel facilitate the first toluene concentration sensor to feed back the real-time detected toluene concentration data to the control panel, and the second toluene concentration sensor and the electrical connection relationship with the control panel facilitate the second toluene concentration sensor to feed back the real-time detected toluene concentration data to the control panel.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, a high-efficiency soluble particulate impurity filtering structure of the device is formed by the stirring motor, stirring rod, stirring paddle, air intake pipe, porous exhaust chassis, first toluene concentration sensor, infusion tube, discharge tube, solenoid valve, and infusion pump. In this structure, when the VOCs waste gas enters the porous exhaust chassis along the air intake pipe, the stirring motor is controlled to work through the control panel. At this time, the stirring motor will drive the stirring rod and the stirring paddle to stir, so that the VOCs adsorption solvent in the reaction tank rotates as a whole, which greatly improves the contact reaction time and reaction area of ​​the VOCs waste gas and the VOCs adsorption solvent, and can effectively adsorb the particulate impurities in the VOCs waste gas and part of the waste gas dissolved in the VOCs adsorption solvent. At the same time, when the first toluene concentration sensor detects The toluene concentration in the first exhaust pipe is close to the toluene concentration in the VOCs waste gas, which means that the VOCs adsorption solvent in the reaction tank is close to failure and cannot effectively adsorb the particulate impurities in the VOCs waste gas and part of the waste gas dissolved in the VOCs adsorption solvent. At this time, the solenoid valve can be controlled to open through the control panel to allow the nearly ineffective VOCs adsorption solvent in the reaction tank to be discharged along the drain pipe. After being drained, the solenoid valve is closed and the infusion pump is opened through the control panel, so that the infusion pump re-injects the VOCs adsorption solvent in the storage tank into the reaction tank to participate in the adsorption reaction. The overall design enables the device to greatly improve the adsorption treatment efficiency of VOCs waste gas, and has the performance of quickly replacing the VOCs adsorption solvent, which greatly improves the working efficiency of the device.

[0024] 2. In the utility model, a fast replacement structure of activated carbon adsorbent of the device is formed by setting a fixed frame, a rotating rod, a connecting piece, a limiting ring, a driving motor, a first adsorption cylinder, a second adsorption cylinder, a limiting frame, an activated carbon filter plate and a connecting flange. In this structure, when the second toluene concentration sensor on the second exhaust pipe detects that the toluene concentration in the exhaust gas exceeds the set value, it will feed back information to the control panel. At this time, it means that the adsorption performance of the activated carbon filter plate in the adsorption cylinder is close to failure. At this time, a pair of connecting flanges can be disassembled, and the driving motor can be controlled to work through the control panel to drive the rotating rod to rotate, and then the first adsorption cylinder is turned down, and the second adsorption cylinder located on the lower side as spare can be rotated between the first exhaust pipe and the second exhaust pipe. At this time, the driving motor is controlled to be turned off through the control panel, and then the connecting flange is installed to complete the operation of fast replacement of the activated carbon adsorption component. The overall structural design enables the device to quickly replace the failed activated carbon when the toluene adsorption performance of the activated carbon is close to failure, effectively improving the efficiency of replacing the exhaust gas adsorption material of the equipment and effectively improving the actual working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an isometric diagram of a VOC waste gas degradation system proposed by the utility model;

[0026] Figure 2 This is a side perspective axonometric diagram of a VOC waste gas degradation system proposed by the utility model;

[0027] Figure 3 A top view of a VOC waste gas degradation system proposed by the utility model;

[0028] Figure 4 This is a front view of a VOC waste gas degradation system proposed by the utility model;

[0029] Figure 5 This is a side view of a VOC waste gas degradation system proposed by the utility model.

[0030] Legend:

[0031] 1. Reactor; 2. Control panel; 3. Stirring motor; 4. Inlet pipe; 5. Solenoid valve; 6. Drain pipe; 7. Fixed frame; 8. Liquid filling port; 9. Liquid storage tank; 10. First exhaust pipe; 11. First toluene concentration sensor; 12. Limiting ring; 13. First adsorption cylinder; 14. Second toluene concentration sensor; 15. Second exhaust pipe; 16. Driving motor; 17. Rotating rod; 18. Second adsorption cylinder; 19. Connecting piece; 20. Connecting flange; 21. Infusion tube; 22. Infusion pump; 23. Stirring paddle; 24. Porous exhaust chassis; 25. Stirring rod; 26. Limiting frame; 27. Activated carbon filter plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-5The utility model provides an embodiment: a VOC waste gas degradation system, including a reaction tank 1 and a fixing frame 7, a control panel 2 is fixedly arranged at a position on one side of the upper end of the reaction tank 1, a liquid infusion tube 21 is fixedly connected to a side edge of one side of the reaction tank 1, and an end of the liquid infusion tube 21 away from the reaction tank 1 is fixedly connected to a liquid storage tank 9, a first exhaust pipe 10 is fixedly connected to the upper end of the reaction tank 1 at the output end, and an end of the first exhaust pipe 10 away from the reaction tank 1 is fixedly connected to a first adsorption cylinder 13, and the frame of the fixing frame 7 is fixedly connected to the upper end of the reaction tank 1. A rotating rod 17 is rotatably connected, and a pair of connecting parts 19 are symmetrically fixedly connected on both sides of the rod body of the rotating rod 17. The upper and lower ends of the pair of connecting parts 19 are fixedly connected to the limiting rings 12. The first adsorption cylinder 13 is arranged on the inner side of the pair of limiting rings 12 on the upper side, and the second adsorption cylinder 18 is limitedly arranged on the inner side of the pair of limiting rings 12 on the lower side. The inner sides of the cylinder bodies of the first adsorption cylinder 13 and the second adsorption cylinder 18 are equidistantly fixedly connected with a plurality of limiting frames 26, and the inner sides of the plurality of limiting frames 26 are fixedly provided with activated carbon filter plates 27.

[0034] A porous exhaust bottom plate 24 is fixedly provided at the lower end of the interior of the reaction tank 1, an air intake pipe 4 is fixedly connected to the lower end of the side of the reaction tank 1, the output end of the air intake pipe 4 passes through the reaction tank 1 and is fixedly connected to the input end of the porous exhaust bottom plate 24, a stirring rod 25 is rotatably connected to the middle position of the top end of the interior of the reaction tank 1, and a plurality of stirring paddles 23 are fixedly connected to the bottom end of the rod body of the stirring rod 25 at equal intervals.

[0035] A stirring motor 3 is fixedly arranged at the middle position of the upper end of the reaction tank 1, the output end of the stirring motor 3 passes through the reaction tank 1 and is fixedly connected to the stirring rod 25, the stirring motor 3 is electrically connected to the control panel 2, a driving motor 16 is fixedly arranged on the outer side of the frame body of the fixed frame 7 away from the reaction tank 1, the output end of the driving motor 16 passes through the fixed frame 7 and is fixedly connected to the rotating rod 17, the driving motor 16 is electrically connected to the control panel 2, a discharge pipe 6 is fixedly connected to the position of the tank body of the reaction tank 1 corresponding to the infusion pipe 21, an electromagnetic valve 5 is fixedly arranged at the position of the tube body of the discharge pipe 6 close to the reaction tank 1, the electromagnetic valve 5 is electrically connected to the control panel 2, an infusion pump 22 is fixedly arranged at the position of the tube body of the infusion pipe 21 close to the reaction tank 1, and the infusion pump 22 is electrically connected to the control panel 2 The upper end of the liquid storage tank 9 is fixedly connected with a liquid filling port 8 at the position of the input end, the first adsorption cylinder 13 is fixedly connected with the second exhaust pipe 15 at one end away from the reaction tank 1, and both ends of the first adsorption cylinder 13 and the second adsorption cylinder 18 are fixedly connected with connecting flanges 20. The first exhaust pipe 10 and the second exhaust pipe 15 are sealedly connected to the first adsorption cylinder 13 and the second adsorption cylinder 18 through the connecting flanges 20. A first toluene concentration sensor 11 is fixedly provided on the body of the first exhaust pipe 10 near the reaction tank 1, and the first toluene concentration sensor 11 is electrically connected to the control panel 2. A second toluene concentration sensor 14 is fixedly provided on the second exhaust pipe 15 near the first adsorption cylinder 13, and the second toluene concentration sensor 14 is electrically connected to the control panel 2.

[0036] Working principle: In the actual use of a VOC waste gas degradation system designed in this invention, when the VOCs waste gas enters the porous exhaust chassis 24 along the air intake pipe 4, the stirring motor 3 is controlled to work through the control panel 2. At this time, the stirring motor 3 will drive the stirring rod 25 and the stirring paddle 23 to perform stirring action, so that the VOCs adsorption solvent in the reaction tank 1 rotates as a whole, which greatly improves the contact reaction time and reaction area between the VOCs waste gas and the VOCs adsorption solvent, and can effectively adsorb the particulate impurities in the VOCs waste gas and part of the waste gas dissolved in the VOCs adsorption solvent. At the same time, when the first toluene concentration sensor 11 detects that the toluene concentration in the first exhaust pipe 10 is similar to the toluene concentration in the VOCs waste gas, it means that the VOCs adsorption solvent in the reaction tank 1 is close to failure and cannot effectively adsorb the particulate impurities in the VOCs waste gas and part of the waste gas dissolved in the VOCs adsorption solvent. At this time, the solenoid valve 5 can be controlled to open through the control panel 2, so that the VOCs adsorption solvent in the reaction tank 1 that is close to failure is discharged along the drain pipe 6. When it is drained clean, the solenoid valve 5 is controlled to close through the control panel 2 and The infusion pump 22 is turned on, so that the infusion pump 22 re-injects the VOCs adsorption solvent in the storage tank 9 into the reaction tank 1 to participate in the adsorption reaction. The overall design greatly improves the adsorption treatment efficiency of the VOCs waste gas. When the second toluene concentration sensor 14 on the second exhaust pipe 15 detects that the toluene concentration in the exhaust gas exceeds the set value, it will feed back the information to the control panel 2. At this time, it means that the adsorption performance of the activated carbon filter plate 27 in the adsorption cylinder is close to failure. At this time, a pair of connecting flanges 20 can be disassembled, and the control panel 2 controls the drive motor 16 to work, drive the rotating rod 17 to rotate, and then the first adsorption cylinder 13 is turned down, and the second adsorption cylinder 18 located on the lower side is rotated between the first exhaust pipe 10 and the second exhaust pipe 15. At this time, the control panel 2 controls the drive motor 16 to be turned off, and then the connecting flange 20 is installed to complete the operation of quickly replacing the activated carbon adsorption component. The overall structural design enables the device to quickly replace the failed activated carbon when the toluene adsorption performance of the activated carbon is close to failure, effectively improving the efficiency of replacing the exhaust gas adsorption material of the equipment and effectively improving the actual working efficiency of the device.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A VOC waste gas degradation system, comprising a reaction tank (1) and a fixing frame (7), characterized in that: A control panel (2) is fixedly arranged at one side of the upper end of the reaction tank (1); a liquid infusion tube (21) is fixedly connected to one side of the reaction tank (1); and an end of the liquid infusion tube (21) away from the reaction tank (1) is fixedly connected to a liquid storage tank (9); The upper end of the reaction tank (1) is fixedly connected to a first exhaust pipe (10) at a position of an output end, and the end of the first exhaust pipe (10) away from the reaction tank (1) is fixedly connected to a first adsorption cylinder (13). A rotating rod (17) is rotatably connected between the frame bodies of the fixed frame (7), and a pair of connecting members (19) are symmetrically fixedly connected to both sides of the shaft of the rotating rod (17). The upper and lower ends of the pair of connecting members (19) are fixedly connected to a limiting ring (12). The first adsorption cylinder (13) is arranged on the inner side of the pair of limiting rings (12) on the upper side, and the second adsorption cylinder (18) is limitedly arranged on the inner side of the pair of limiting rings (12) on the lower side. The inner sides of the first adsorption cylinder (13) and the second adsorption cylinder (18) are fixedly connected to a plurality of limiting frames (26) at equal distances, and the inner sides of the plurality of limiting frames (26) are fixedly provided with an activated carbon filter plate (27) in a limited manner.

2. A VOC waste gas degradation system according to claim 1, characterized in that: A porous exhaust bottom plate (24) is fixedly arranged at the lower end of the interior of the reaction tank (1); an air intake pipe (4) is fixedly connected to the lower end of the side of the reaction tank (1); the output end of the air intake pipe (4) passes through the reaction tank (1) and is fixedly connected to the input end of the porous exhaust bottom plate (24); a stirring rod (25) is rotatably connected to the middle position of the top end of the interior of the reaction tank (1); and a plurality of stirring paddles (23) are fixedly connected to the bottom end of the stirring rod (25) at equal intervals.

3. A VOC waste gas degradation system according to claim 2, characterized in that: A stirring motor (3) is fixedly arranged at the middle position of the upper end of the reaction tank (1); the output end of the stirring motor (3) passes through the reaction tank (1) and is fixedly connected to the stirring rod (25); and the stirring motor (3) is electrically connected to the control panel (2).

4. A VOC waste gas degradation system according to claim 1, characterized in that: A drive motor (16) is fixedly arranged on the outer side of the fixed frame (7) away from the reaction tank (1); an output end of the drive motor (16) passes through the fixed frame (7) and is fixedly connected to the rotating rod (17); and the drive motor (16) is electrically connected to the control panel (2).

5. A VOC waste gas degradation system according to claim 1, characterized in that: A discharge pipe (6) is fixedly connected to the tank body of the reaction tank (1) at a position corresponding to the infusion pipe (21); a solenoid valve (5) is fixedly arranged on the tank body of the discharge pipe (6) at a position close to the reaction tank (1); and the solenoid valve (5) is electrically connected to the control panel (2).

6. A VOC waste gas degradation system according to claim 1, characterized in that: An infusion pump (22) is fixedly arranged at a position of the infusion tube (21) near the reaction tank (1); the infusion pump (22) is electrically connected to the control panel (2); and a liquid filling port (8) is fixedly connected to the upper end of the liquid storage tank (9) at a position of the input end.

7. A VOC waste gas degradation system according to claim 1, characterized in that: The end of the first adsorption cylinder (13) away from the reaction tank (1) is fixedly connected to the second exhaust pipe (15), and both ends of the first adsorption cylinder (13) and the second adsorption cylinder (18) are fixedly connected to connecting flanges (20), and the first exhaust pipe (10) and the second exhaust pipe (15) are sealedly connected to the first adsorption cylinder (13) and the second adsorption cylinder (18) via the connecting flanges (20).

8. A VOC waste gas degradation system according to claim 7, characterized in that: A first toluene concentration sensor (11) is fixedly arranged on the body of the first exhaust pipe (10) at a position close to the reaction tank (1), and the first toluene concentration sensor (11) is electrically connected to the control panel (2). A second toluene concentration sensor (14) is fixedly arranged on the body of the second exhaust pipe (15) at a position close to the first adsorption cylinder (13), and the second toluene concentration sensor (14) is electrically connected to the control panel (2).

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