Graphite cathode material production waste gas purification and waste gas emptying device

Abstract

The graphite cathode material production waste gas purification and waste gas emptying device provided by the utility model not only solves the problem of uniform mixing of waste gas and liquid in the purification tank in the waste gas treatment process, but also can clean generated precipitates to prevent the precipitates from depositing on the inner side wall, and can also collect the precipitates, so that the waste gas treatment efficiency is improved. According to the technical scheme for solving the problems, the gas purification device comprises a purification cylinder, the lower end of the purification cylinder is of a big-end-up conical structure, and a cover is arranged at the upper end of the purification cylinder, and is characterized in that a gas temporary storage cavity is formed in the purification cylinder, and a preliminary filtering cavity is formed in the upper end of the gas temporary storage cavity; the gas temporary storage cavity and the preliminary filtering cavity are mixed through a gas-liquid mixer, a side wall cleaning piece which is driven by a driving motor and is used for cleaning the side wall is rotationally connected into the preliminary filtering cavity, and a plurality of filtering pieces are detachably connected to the position, located above the preliminary filtering cavity, in the purifying barrel.

Description

Technical Field

[0001] The utility model relates to the field of graphite production waste gas treatment, in particular to a waste gas purification and waste gas emptying device for graphite negative electrode material production. Background Art

[0002] In the process of graphite production, it is inevitable to generate a certain amount of waste gas. In the process of waste gas treatment, purification tanks are often used for purification, which is not only short in time but also ineffective. The Chinese utility model patent with patent number CN214551953U provides a solution to increase the reaction speed of waste gas entering the purification tank. The principle of multiple purifications is used for cyclic purification, which not only wastes time but also has the problem of incomplete reaction. At the same time, the sediment on the side wall of the purification tank is shaken off by vibration. Not only the effect cannot be guaranteed, but also certain damage will be caused to the equipment, and it is inconvenient to collect the sediment. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a graphite negative electrode material production waste gas purification and waste gas emptying device, which not only solves the problem of uniform mixing of waste gas and liquid in the purification tank during waste gas treatment, but also can clean up the generated precipitate to prevent the precipitate from depositing on the inner wall, and can also collect the precipitate and then perform defoaming and secondary filtration treatment.

[0004] The technical solution is to include a purification cylinder, the lower end of which is a conical structure that is larger at the top and smaller at the bottom, and a cover is provided at the upper end of the purification cylinder. The purification cylinder is characterized in that a gas temporary storage chamber is provided in the purification cylinder, and a preliminary filter chamber is provided at the upper end of the gas temporary storage chamber. The gas temporary storage chamber and the preliminary filter chamber are mixed by a gas-liquid mixer, and a side wall cleaning member that is driven by a driving motor and cleans the side wall is rotatably connected in the preliminary filter chamber, and a plurality of filters are detachably connected above the preliminary filter chamber in the purification cylinder.

[0005] Preferably, the purification cylinder is cylindrical, and the lower end of the cylinder is a conical structure that is larger at the top and smaller at the bottom. The lower end of the purification cylinder is fixedly connected to a plurality of supporting legs for support.

[0006] Preferably, the gas temporary storage chamber is located at the lower end of the inner side of the purification cylinder, and the lower end of the conical structure is the air inlet. A dust blocking ring is provided at the air inlet position in the gas temporary storage chamber.

[0007] Preferably, the preliminary filter chamber is a cylindrical structure, the outer wall of the side wall cleaning piece rotatably connected in the preliminary filter chamber cooperates with the inner side of the preliminary filter chamber, and obliquely arranged cleaning strips are respectively provided at the upper and lower ends and the outer side of the side wall cleaning piece.

[0008] Preferably, an annular receiving groove is provided at the lower end of the preliminary filtering chamber, and a cleaning pipe is connected to the annular receiving groove outwardly, and the protruding end of the cleaning pipe protrudes out of the purification cylinder and is sealed.

[0009] Preferably, the gas-liquid mixer comprises a mixing cylinder fixedly connected to the upper end of the gas temporary storage chamber and arranged vertically, a conical jet outlet is provided at the lower end of the inner side surface of the mixing cylinder, a liquid inlet cavity is provided outside the conical jet outlet, a liquid inlet port connected to the preliminary filtration chamber is provided outside the liquid inlet cavity, a spray port is provided at the upper end of the mixing cylinder, and an arc-shaped guide plate is fixedly connected to the outer side surface of the spray port.

[0010] Preferably, the filter element is vertically slidably connected in the purification cylinder, a plurality of vertically arranged retaining pieces are provided on the inner side of the purification cylinder, and retaining notches are provided on the filter element at positions corresponding to the positions of the retaining pieces.

[0011] Preferably, the side wall cleaning member is driven by a driving motor fixedly connected in the gas temporary storage chamber, and a rotating shaft of the driving motor extends upward and rotates and is sealedly connected to an upper end surface of the gas temporary storage chamber.

[0012] Preferably, the gas-liquid mixers are multiple and evenly distributed around the circumference, and the arc-shaped guide plates at the upper ends of the gas-liquid mixers are arranged toward the outside.

[0013] The beneficial effects of the utility model are:

[0014] 1. Solved the problem of uniform mixing of waste gas and liquid in the purification tank during waste gas treatment;

[0015] 2. It can clean the generated sediment and prevent the sediment from being deposited on the inner wall;

[0016] 3. Capable of collecting sediment;

[0017] 4. It can also perform defoaming and secondary filtration treatments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model.

[0019] Figure 2 It is a cross-sectional view of the utility model.

[0020] Figure 3 It is a partial cross-sectional view of the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the side wall cleaning piece of the utility model.

[0022] Figure 5 It is a schematic diagram of the side wall cleaning member of the utility model.

[0023] Figure 6It is a cross-sectional view of the side wall cleaning piece of the utility model.

[0024] Figure 7 It is a schematic diagram of the mixing cylinder of the present utility model.

[0025] Figure 8 This is a cross-sectional view of the mixing barrel of the utility model.

[0026] Fig. 9 This is a schematic diagram of the filter element of the utility model.

[0027] Reference numerals

[0028] 1. Purification cylinder; 2. Cover; 3. Gas temporary storage chamber; 4. Preliminary filtration chamber; 5. Side wall cleaning piece; 6. Filter element; 7. Support leg; 8. Air inlet; 9. Ash retaining ring; 10. Cleaning strip; 11. Annular receiving groove; 12. Cleaning tube; 13. Mixing cylinder; 14. Conical jet nozzle; 15. Liquid inlet cavity; 16. Liquid inlet; 17. Spray outlet; 18. Arc guide plate; 19. Positioning piece; 20. Positioning notch. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0030] When this embodiment is in use, it is necessary to first fill the purification cylinder 1 with liquid for reaction, add reactants to the liquid, and then dissolve or infiltrate the impurities contained in the gas into water through the principle of gas-liquid mixing. Then, various impurities and pollutants are treated by the reactants in the water, and then the excess air is filtered for a second time and discharged, and the dissolved water is treated intensively, because the air is relatively dispersed and has a large volume, and after the pollutants are dissolved in the water, only the dissolved water needs to be treated, and the dissolved water can also be reused.

[0031] The gas to be purified is connected to the lower end of the purification cylinder 1. The lower end of the evolution cylinder is a trumpet-shaped conical structure with a large top and a small bottom. The conical structure constitutes a gas temporary storage chamber 3. The gas temporary storage chamber 3 is used to accommodate the incoming gas. A pressure sensor can be provided in the gas temporary storage chamber 3 to monitor the gas pressure in the gas temporary storage chamber 3, and then the gas and liquid are mixed through a gas-liquid mixer at the upper end of the gas temporary storage chamber 3. The gas is the waste gas to be treated, and the liquid is a liquid with a reactant. The gas is ejected upward from the mixing cylinder 13 by pressure, and the gas will be ejected through the conical jet port 14. At this time, a negative pressure area will be formed on the outside of the conical jet port 14, and the negative pressure area is the liquid inlet cavity 15 and is connected to the preliminary filter chamber 4, and then the negative pressure will attract the liquid. The gas and the liquid are ejected together. During this process, the high-speed movement of the gas will disperse the liquid. Then the gas and liquid are fully mixed and then ejected upward from the ejection port 17 located at the upper end of the conical jet port 14. Then the upper end of the ejection port 17 is provided with an arc guide plate 18 for guiding the ejected gas-liquid mixture. The arc guide plate 18 is an arc structure and the upper end extends outward. The gas-liquid mixture is arranged in pairs and is evenly distributed in the preliminary filter cavity 4. At the same time, the liquid inlet 16 of the liquid inlet cavity 15 is in the same direction as the arc guide plate 18, so that the ejected gas-liquid mixture will disturb the water flow to move, thereby accelerating the dissolution of impurities in the gas into the liquid, and then purifying the liquid through the reactant added to the liquid.

[0032] Since the preliminary filter chamber 4 is the first to contact the exhaust gas, it contains the most sediment, and the inner wall of the preliminary filter chamber 4 needs to be cleaned. A side wall cleaning piece 5 is rotatably connected in the preliminary filter chamber 4, and the side wall cleaning piece 5 is in contact and cooperate with the inner wall of the preliminary filter chamber 4. At the same time, the side wall cleaning piece 5 is consistent with the shape of the inner side surface of the preliminary filter chamber 4. The upper and lower end faces of the side wall cleaning piece 5 are circular, and the middle part of the side wall cleaning piece 5 is the outer edge connecting the upper and lower end faces. At the same time, the upper and lower ends and the middle part of the side wall cleaning piece 5 are respectively provided with obliquely arranged cleaning strips 10, which not only clean the inner wall of the preliminary filter chamber 4, but also the cleaning strip 10 is always in contact with the inner wall of the preliminary filter chamber 4. At the same time, the obliquely arranged cleaning strip 10 can also disturb the liquid.

[0033] An annular receiving groove is provided on the lower end face of the preliminary filter chamber 4, and the receiving groove is used to accommodate the cleaned and settled sediment. At the same time, a cleaning pipe 12 connected to the outside is provided on the side of the receiving groove. The outer end of the cleaning pipe 12 is generally closed, and is opened when it is necessary to replace the liquid and clean the cleaning pipe 12, thereby completing the function of changing water and cleaning sediment.

[0034] A plurality of through holes connected to the purification cartridge 1 are provided at the upper end of the preliminary filter chamber 4, and a plurality of longitudinally arranged latching pieces 19 are provided at the upper end of the preliminary filter chamber 4 in the purification cartridge 1. The middle part of the latching piece 19 is hollow, and the filter element 6 is vertically slidably connected in the purification cartridge 1. A plurality of filtering gaps are provided on the filter element 6, and the latching notches correspond to the latching pieces 19 when the filter element 6 is installed. At this time, the filter element 6 can be controlled to be lifted and lowered. After being lifted and lowered to the set position, the filter element 6 is rotated. After the filter element 6 is rotated, the latching notches and the latching pieces 19 will be staggered. At this time, the latching pieces 19 will be stuck on the side of the filter element 6 to complete the positioning, and then the water flow from the bottom to the top will not cause the filter element 6 to fall off. When the filter element 6 needs to be replaced, the filter element 6 is rotated so that the positions of the latching notches on the filter element 6 and the latching pieces 19 correspond, and then the filter element 6 can be moved upward, and then the filter element 6 can be taken out.

[0035] The dust retaining ring 9 in the temporary gas storage chamber 3 not only prevents the dust in the temporary gas storage chamber 3 from falling, but also prevents the liquid seeping from the upper part from entering the gas inlet, thereby preventing backflow.

Claims

1. A graphite negative electrode material production waste gas purification and waste gas exhaust device, comprising a purification cylinder (1), the lower end of the purification cylinder (1) is a conical structure with a larger upper part and a smaller lower part, and the upper end of the purification cylinder (1) is provided with a cover (2), characterized in that: The purification cylinder (1) is provided with a temporary gas storage chamber (3), and a preliminary filter chamber (4) is provided at the upper end of the temporary gas storage chamber (3). The temporary gas storage chamber (3) and the preliminary filter chamber (4) are mixed by a gas-liquid mixer. A side wall cleaning member (5) driven by a driving motor and used to clean the side wall is rotatably connected to the preliminary filter chamber (4). A plurality of filter members (6) are detachably connected above the preliminary filter chamber (4) in the purification cylinder (1).

2. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The purification cylinder (1) is cylindrical, and the lower end of the cylinder is a conical structure that is larger at the top and smaller at the bottom. The lower end of the purification cylinder (1) is fixedly connected to a plurality of supporting legs (7) for support.

3. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The gas temporary storage chamber (3) is located at the lower end of the inner side of the purification cylinder (1), and the lower end of the conical structure is the air inlet (8). A dust blocking ring (9) is provided at the air inlet (8) in the gas temporary storage chamber (3).

4. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The preliminary filter chamber (4) is a cylindrical structure, the outer wall of the side wall cleaning member (5) rotatably connected in the preliminary filter chamber (4) cooperates with the inner side of the preliminary filter chamber (4), and the upper and lower ends and the outer side of the side wall cleaning member (5) are respectively provided with cleaning strips (10) arranged obliquely.

5. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The lower end of the preliminary filtering chamber (4) is provided with an annular receiving groove (11), the annular receiving groove (11) is connected to the outside with a cleaning pipe (12), and the protruding end of the cleaning pipe (12) protrudes out of the purification cylinder (1) and is sealed.

6. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The gas-liquid mixer comprises a mixing cylinder (13) fixedly connected to the upper end of the gas temporary storage chamber (3) and arranged vertically, a conical jet outlet (14) is provided at the lower end of the inner side surface of the mixing cylinder (13), a liquid inlet cavity (15) is provided outside the conical jet outlet (14), a liquid inlet port (16) connected to the preliminary filtering chamber (4) is provided outside the liquid inlet cavity (15), a jet outlet (17) is provided at the upper end of the mixing cylinder (13), and an arc-shaped guide plate (18) is fixedly connected to the outer side surface of the jet outlet (17).

7. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The filter element (6) is vertically slidably connected in the purification cylinder (1); a plurality of vertically arranged locking pieces (19) are provided on the inner side surface of the purification cylinder (1); and locking notches (20) are provided on the filter element (6) at positions corresponding to the locking pieces (19).

8. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 1, characterized in that: The side wall cleaning member (5) is driven by a driving motor fixedly connected to the gas temporary storage chamber (3); the driving motor shaft extends upward and rotates and is sealedly connected to the upper end surface of the gas temporary storage chamber (3).

9. The device for purifying and exhausting waste gas from the production of graphite negative electrode materials according to claim 6, characterized in that: The gas-liquid mixers are multiple and evenly distributed around the circumference, and the arc-shaped guide plates (18) at the upper ends of the gas-liquid mixers are arranged facing outwards.

Images