A device for treating VOCs waste gas from graphite negative electrode materials

Abstract

The utility model discloses a device for treating VOCs waste gas of graphite negative electrode material, including a graphite negative electrode material VOCs waste gas treatment tower body and an activated carbon purification box, wherein the interior of the graphite negative electrode material VOCs waste gas treatment tower body is sequentially provided with an upper spray head, an upper waste gas spray guide frame, a lower spray head, a lower waste gas spray guide frame, a buffer grid plate and a sewage recovery tank from top to bottom, and a sewage discharge port is provided at the front end of the sewage recovery tank, and a waste gas inlet is provided at the lower side of the graphite negative electrode material VOCs waste gas treatment tower body. In the utility model, the original single-channel waste gas inlet is changed into a double-channel waste gas inlet, so that the interior of the waste gas inlet is divided into an upper exhaust channel and a lower slag discharge channel, which is convenient for separating gas and powder slag in the waste gas, and the powder slag can be directly discharged to the interior of the sewage recovery tank through the lower slag discharge channel, which not only reduces the amount of powder slag discharged, but also reduces the probability of spray hole clogging, and prolongs the service life of the internal structure.

Description

Technical Field

[0001] The utility model relates to the field related to VOCs waste gas treatment, in particular to a device for treating VOCs waste gas of graphite negative electrode material. Background Art

[0002] VOCs waste gas is volatile organic compounds. Under the sunlight, VOCs react photochemically with nitrogen oxides and hydrocarbons in the atmosphere to produce two pollutants. One is a component of PM2.5, called secondary organic particulate matter, and the other pollutant is ozone. These two pollutants float in the air, affecting air quality, destroying the ozone layer and aggravating the greenhouse effect.

[0003] There are still certain deficiencies in the use of devices for treating VOCs waste gas from graphite negative electrode materials in the prior art. When traditional treatment devices are in use, the waste gas usually enters the treatment tower directly, and the dust and impurities in the waste gas will enter with the gas. The dust is easy to adhere to the tower, causing the internal spray holes to be blocked, and the waste gas is transported upward at a fast speed, resulting in some microorganisms being unable to contact the waste gas, thereby reducing the effect of VOCs waste gas treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a device for treating VOCs waste gas from graphite negative electrode materials, so as to solve the problem that when the traditional treatment device proposed in the above background technology is used, the waste gas usually enters the treatment tower directly, and the dust and impurities in the waste gas will enter together with the gas. The dust is easy to adhere to the tower, causing the internal spray holes to be blocked, and the waste gas is transported upward at a fast speed, resulting in some microorganisms being unable to contact with the waste gas, thereby reducing the effect of VOCs waste gas treatment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for treating VOCs waste gas from graphite negative electrode materials, comprising a graphite negative electrode material VOCs waste gas treatment tower body and an activated carbon purification box, wherein the interior of the graphite negative electrode material VOCs waste gas treatment tower body is provided with an upper spray head, an upper waste gas spray guide frame, a lower spray head, a lower waste gas spray guide frame, a buffer grid plate and a sewage recovery tank from top to bottom, wherein a sewage discharge port is provided at the front end of the sewage recovery tank, a waste gas inlet is provided at the lower side of one side of the graphite negative electrode material VOCs waste gas treatment tower body, and the top of the graphite negative electrode material VOCs waste gas treatment tower body is provided with a waste gas inlet. A primary clean gas outlet is provided at the end, a circulating water pool is provided below the other side of the main body of the graphite negative electrode material VOCs waste gas treatment tower, an impurity filter is provided at the position where the sewage recovery tank is connected to the circulating water pool, a dosing barrel is provided on one side of the circulating water pool, the activated carbon purification box is provided on one side of the main body of the graphite negative electrode material VOCs waste gas treatment tower, and an air inlet and an air outlet are respectively provided at both ends of the activated carbon purification box, the air outlet is connected to the clean gas emission chimney, and a waterproof cover is provided on the top of the clean gas emission chimney, and an upper visual window and a lower visual window are provided in sequence at the front end of the main body of the graphite negative electrode material VOCs waste gas treatment tower.

[0006] In a further embodiment, the graphite negative electrode material VOCs waste gas treatment tower body is fixedly connected to the activated carbon purification box through a connecting pipe, and the lower end of the connecting pipe is connected to the air inlet through a centrifugal fan.

[0007] In a further embodiment, the upper spray head and the lower spray head are connected to the circulating water pool via a fixed water pipe, and the lower end of the fixed water pipe is connected to the circulating water pool via a circulating water pump.

[0008] In a further embodiment, the interior of the lower exhaust gas spray guide frame is composed of multiple guide plates, and the upper and lower ends of the guide plates are respectively provided with an upper directional bevel layer and a lower directional bevel layer, and the installation directions of the upper directional bevel layer and the lower directional bevel layer are set to opposite structures.

[0009] In a further embodiment, the upper exhaust gas spray guide frame and the lower exhaust gas spray guide frame are connected to the inner wall of the graphite negative electrode material VOCs exhaust gas treatment tower body by welding, and the upper exhaust gas spray guide frame and the lower exhaust gas spray guide frame have the same structure.

[0010] In a further embodiment, the interior of the exhaust gas inlet is composed of an upper exhaust channel and a lower slag discharge channel, an exhaust gas filter is provided inside the upper exhaust channel, and the upper exhaust channel and the lower slag discharge channel are connected to form a V-shaped structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the original single-channel exhaust gas inlet is changed into a double-channel exhaust gas inlet, so that the interior of the exhaust gas inlet is divided into an upper exhaust channel and a lower slag discharge channel, which is convenient for separating the gas and powder slag in the exhaust gas. The powder slag can be directly discharged into the sewage recovery tank through the lower slag discharge channel, which not only reduces the amount of powder slag discharged, but also reduces the probability of spray hole clogging, and extends the service life of the internal structure.

[0013] 2. In the utility model, an exhaust gas spray guide frame is provided below the spray head. The exhaust gas spray guide frame can play two roles. First, it increases the resistance to the exhaust gas discharged upward, reduces the exhaust gas flow rate, and makes the exhaust gas be discharged in multiple routes, fully merged with the spray liquid, and greatly increases the gas-liquid contact area. Second, it plays a role in guiding the liquid after spraying, so that the liquid drips downward along the exhaust gas spray guide frame, which is convenient for the liquid to be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a device for treating VOCs waste gas from graphite negative electrode materials according to the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the main body of the graphite negative electrode material VOCs waste gas treatment tower of the utility model;

[0016] Figure 3 This is a detailed structural diagram of part A of the utility model;

[0017] Figure 4 It is a side view of the lower exhaust gas spray guide frame of the utility model;

[0018] Figure 5 It is a top view of the lower exhaust gas spray guide frame of the utility model;

[0019] Figure 6 It is a top view of the buffer grid of the utility model;

[0020] Figure 7 It is a schematic diagram of the bottom structure of the lower sprinkler head of the utility model.

[0021] In the figure: 1. Graphite negative electrode material VOCs waste gas treatment tower body; 2. Upper visual window; 3. Waste gas inlet; 4. Sewage outlet; 5. Lower visual window; 6. Fixed water pipe; 7. Dosing barrel; 8. Circulating water pump; 9. Circulating water pool; 10. Primary clean air outlet; 11. Connecting pipe; 12. Centrifugal fan; 13. Air inlet; 14. Activated carbon purification box; 15. Air outlet; 16. Clean air emission chimney; 17. Waterproof cover; 18. Upper spray head; 19. Upper waste gas spray guide frame; 20. Lower spray head; 21. Lower waste gas spray guide frame; 22. Buffer grid; 23. Impurity filter; 24. Sewage recovery tank; 25. Upper exhaust channel; 26. Waste gas filter element; 27. Lower slag discharge channel; 28. Guide plate; 29. ​​Upper directional inclined layer; 30. Lower directional inclined layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-7The utility model provides an embodiment: a device for treating VOCs waste gas from graphite negative electrode materials, comprising a graphite negative electrode material VOCs waste gas treatment tower body 1 and an activated carbon purification box 14, wherein the interior of the graphite negative electrode material VOCs waste gas treatment tower body 1 is provided with an upper spray head 18, an upper waste gas spray guide frame 19, a lower spray head 20, a lower waste gas spray guide frame 21, a buffer grid plate 22 and a sewage recovery tank 24 from top to bottom, a sewage recovery tank 24 is provided with a sewage outlet 4 at the front end, a waste gas inlet 3 is provided at the lower side of the graphite negative electrode material VOCs waste gas treatment tower body 1, and an initial A secondary clean gas outlet 10, a circulating water pool 9 is provided at the bottom of the other side of the main body 1 of the graphite negative electrode material VOCs waste gas treatment tower, an impurity filter screen 23 is provided at the position where the sewage recovery tank 24 is connected to the circulating water pool 9, a dosing barrel 7 is provided on one side of the circulating water pool 9, an activated carbon purification box 14 is provided on one side of the main body 1 of the graphite negative electrode material VOCs waste gas treatment tower, and an air inlet 13 and an air outlet 15 are provided at both ends of the activated carbon purification box 14, the air outlet 15 is connected to the clean gas emission chimney 16, and a waterproof cover 17 is provided on the top of the clean gas emission chimney 16, and an upper visual window 2 and a lower visual window 5 are provided at the front end of the main body 1 of the graphite negative electrode material VOCs waste gas treatment tower. The upper spray head 18 and the lower spray head 20 are used to spray the medicine liquid, the upper exhaust gas spray guide frame 19 and the lower exhaust gas spray guide frame 21 are used to guide the direction of exhaust gas emission, the buffer grid 22 is used to reduce the impact force of the exhaust gas to play a buffering role, the sewage recovery tank 24 is used to recover the used medicine liquid for reuse, the circulating water pool 9 is used to store water, the impurity filter net 23 is used to filter the slag in the sewage recovery tank 24, the activated carbon purification box 14 is used to purify the exhaust gas, the clean gas emission chimney 16 is used to guide and transport the clean gas emission direction, and the waterproof cover 17 is used to waterproof the clean gas emission chimney 16.

[0024] The graphite negative electrode material VOCs waste gas treatment tower body 1 is fixedly connected to the activated carbon purification box 14 through a connecting pipe 11, and the lower end of the connecting pipe 11 is connected to the air inlet 13 through a centrifugal fan 12. The connecting pipe 11 can make the graphite negative electrode material VOCs waste gas treatment tower body 1 and the inside of the activated carbon purification box 14 communicate.

[0025] The upper spray head 18 and the lower spray head 20 are connected to the circulating water pool 9 through a fixed water pipe 6, and the lower end of the fixed water pipe 6 is connected to the circulating water pool 9 through a circulating water pump 8. The fixed water pipe 6 is used to connect the upper spray head 18 and the lower spray head 20 to the circulating water pool 9.

[0026] The interior of the lower exhaust gas spray guide frame 21 is composed of a plurality of guide plates 28, and an upper directional bevel layer 29 and a lower directional bevel layer 30 are respectively provided at the upper and lower ends of the guide plate 28, and the installation directions of the upper directional bevel layer 29 and the lower directional bevel layer 30 are set to opposite structures. The guide plate 28 facilitates the guidance of the direction of exhaust gas and liquid discharge. The upper exhaust gas spray guide frame 19 and the lower exhaust gas spray guide frame 21 are connected to the inner wall of the graphite negative electrode material VOCs exhaust gas treatment tower body 1 by welding, and the upper exhaust gas spray guide frame 19 and the lower exhaust gas spray guide frame 21 have the same structure. The welding connection can make the upper exhaust gas spray guide frame 19 and the lower exhaust gas spray guide frame 21 more firmly and reliably installed.

[0027] The interior of the exhaust gas inlet 3 is composed of an upper exhaust channel 25 and a lower slag discharge channel 27. An exhaust gas filter 26 is provided inside the upper exhaust channel 25, and the upper exhaust channel 25 and the lower slag discharge channel 27 are connected to form a V-shaped structure. The upper exhaust channel 25 is used to discharge gas from above, and the lower slag discharge channel 27 is used to discharge powder slag from below.

[0028] Working principle: When in use, VOCs waste gas enters from the waste gas inlet 3, the powder and slag in the waste gas are filtered through the waste gas filter element 26, the gas is discharged into the graphite negative electrode material VOCs waste gas treatment tower body 1 through the upper exhaust channel 25, the powder and slag are discharged into the sewage recovery tank 24 through the lower slag discharge channel 27, the medicine liquid is added into the circulating water pool 9 through the dosing barrel 7, and the medicine liquid is transported to the fixed water pipe 6 through the circulating water pump 8, and the fixed water pipe 6 transports them to the upper spray head 18 and the lower spray head 20 respectively, and the upper spray head 18 and the lower spray head 20 are sprayed evenly, and the gas passes through the lower waste gas spray guide frame 21 and the upper waste gas spray guide frame 19 to fully contact with the spray liquid, and is oxidized and degraded, and is transported to the activated carbon purification box 14 through the connecting pipe 11, and the clean gas is subjected to secondary purification treatment by the activated carbon purification box 14, and the clean gas is discharged through the clean gas discharge chimney 16.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for treating VOCs waste gas from graphite negative electrode materials, comprising a graphite negative electrode material VOCs waste gas treatment tower body (1) and an activated carbon purification box (14), characterized in that: The interior of the graphite negative electrode material VOCs waste gas treatment tower body (1) is provided with an upper spray head (18), an upper waste gas spray guide frame (19), a lower spray head (20), a lower waste gas spray guide frame (21), a buffer grid plate (22) and a sewage recovery tank (24) in order from top to bottom. The front end of the sewage recovery tank (24) is provided with a sewage outlet (4). A waste gas inlet (3) is provided below one side of the graphite negative electrode material VOCs waste gas treatment tower body (1). A primary clean gas outlet (10) is provided at the top of the graphite negative electrode material VOCs waste gas treatment tower body (1). A circulating water pool is provided below the other side of the graphite negative electrode material VOCs waste gas treatment tower body (1). (9), an impurity filter (23) is provided at the position where the sewage recovery tank (24) is connected to the circulating water pool (9), a dosing barrel (7) is provided on one side of the circulating water pool (9), the activated carbon purification box (14) is provided on one side of the graphite negative electrode material VOCs waste gas treatment tower body (1), an air inlet (13) and an air outlet (15) are provided at both ends of the activated carbon purification box (14), the air outlet (15) is connected to the clean gas emission chimney (16), a waterproof cover (17) is provided on the top of the clean gas emission chimney (16), and an upper visual window (2) and a lower visual window (5) are provided at the front end of the graphite negative electrode material VOCs waste gas treatment tower body (1).

2. The device for treating VOCs waste gas from graphite negative electrode materials according to claim 1, characterized in that: The graphite negative electrode material VOCs waste gas treatment tower body (1) is fixedly connected to the activated carbon purification box (14) via a connecting pipe (11), and the lower end of the connecting pipe (11) is connected to the air inlet (13) via a centrifugal fan (12).

3. The device for treating VOCs waste gas from graphite negative electrode materials according to claim 1, characterized in that: The upper spray head (18) and the lower spray head (20) are connected to the circulating water pool (9) via a fixed water pipe (6), and the lower end of the fixed water pipe (6) is connected to the circulating water pool (9) via a circulating water pump (8).

4. The device for treating VOCs waste gas from graphite negative electrode materials according to claim 1, characterized in that: The interior of the lower exhaust gas spray guide frame (21) is composed of a plurality of guide plates (28), and an upper directional inclined surface layer (29) and a lower directional inclined surface layer (30) are respectively provided at the upper and lower ends of the guide plates (28), and the installation directions of the upper directional inclined surface layer (29) and the lower directional inclined surface layer (30) are set to be opposite structures.

5. The device for treating VOCs waste gas from graphite negative electrode materials according to claim 1, characterized in that: The upper exhaust gas spray guide frame (19) and the lower exhaust gas spray guide frame (21) are connected to the inner wall of the graphite negative electrode material VOCs exhaust gas treatment tower body (1) by welding, and the upper exhaust gas spray guide frame (19) and the lower exhaust gas spray guide frame (21) have the same structure.

6. The device for treating VOCs waste gas from graphite negative electrode materials according to claim 1, characterized in that: The interior of the waste gas inlet (3) is composed of an upper exhaust channel (25) and a lower slag discharge channel (27), a waste gas filter element (26) is provided inside the upper exhaust channel (25), and the upper exhaust channel (25) and the lower slag discharge channel (27) are connected to form a V-shaped structure.

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