Desulfurization device for treating graphite cathode material waste gas
By introducing the design of the secondary dust collector, the primary dust collector and the activated carbon filter element in the desulfurization device, the problems of incomplete waste gas treatment of graphite negative electrode materials and waste of resources are solved, and more efficient waste gas purification and resource recycling are achieved.
Patent Information
- Application Number
- CN202421051886.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The prior art cannot thoroughly filter the waste gas of graphite negative electrode material, the desulfurization process is easily affected by impurities, the spray liquid cannot be recycled, the resource waste is severe and the cost is high, and waste slag cannot be collected effectively.
A desulfurization device including a secondary dust collector, a waste gas desulfurization tower, a desulfurizer storage tank and a first-level dust collector tank was designed. The waste gas was re-dustrated through the second-level dust collector, and the first-level dust collector was used for preliminary dust removal and waste liquid treatment. The activated carbon adsorption filter element in the box is filtered through spray liquid, and the desulfurized waste slag is collected in the filter slag box.
It achieves a more thorough waste gas purification, avoids the influence of impurities, promotes the recycling of spray liquid, saves resources, and effectively collects waste slag, reducing costs.
Smart Images
Figure CN222239613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of desulfurization devices, in particular to a desulfurization device for treating waste gas of graphite negative electrode materials. Background Art
[0002] The desulfurization device for treating the waste gas of graphite negative electrode materials is used to desulfurize and purify the waste gas of graphite negative electrode materials. At present, the negative electrode materials actually used in lithium-ion batteries are basically carbon materials, such as artificial graphite, natural graphite, mesophase carbon microbeads, petroleum coke, carbon fiber, pyrolytic resin carbon, etc.
[0003] For example, the authorized patent with publication number CN213221622U (efficient and environmentally friendly flue gas desulfurization device): a clean flue gas outlet is fixedly arranged on the top of the desulfurization device body, a smoke inlet and an air inlet pipe are fixedly installed on the left side of the lower layer of the inner cavity of the desulfurization device body, a desulfurizer inlet is fixedly installed on the right side of the lower layer of the inner cavity of the desulfurization device body, a desulfurization device base is fixedly arranged on the bottom of the desulfurization device body, a supporting foot is fixedly installed on the bottom of the desulfurization device base, a motor is fixedly installed in the inner cavity of the desulfurization device base, a stirring paddle is movably connected to the top of the motor, and a first circulating pump, a second circulating pump and a third circulating pump are fixedly connected to the bottom of the right side of the desulfurization device body in sequence through pipelines. This efficient and environmentally friendly flue gas desulfurization device desulfurizes flue gas through three desulfurization layers, can effectively desulfurize flue gas, reduces pollution emissions, and protects people's health;
[0004] The above-mentioned existing technology cannot filter the waste gas, the desulfurization process is easily affected by impurities, the waste gas treatment is not thorough enough, the waste gas in the discharge process cannot be purified, and the spray liquid after spraying cannot be recycled, resulting in serious waste of resources and high costs, and the waste residue cannot be collected and controlled. Utility Model Content
[0005] The purpose of the utility model is to provide a desulfurization device for treating waste gas from graphite negative electrode materials, so as to solve the problems proposed in the above-mentioned background technology that the waste gas cannot be filtered, the desulfurization process is easily affected by impurities, the waste gas treatment is not thorough enough, the waste gas in the discharge process cannot be purified, and the spray liquid after spraying cannot be recycled, resulting in serious waste of resources, high cost, and inability to collect and control waste residues.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization device for treating waste gas from graphite negative electrode materials, comprising a secondary dust removal hood, a waste gas desulfurization tower, a desulfurizer storage tank and a primary dust removal tank, a secondary dust removal hood is provided on the top of the waste gas desulfurization tower, the top of the secondary dust removal hood is connected to the exhaust pipe through a fan, a desulfurizer storage tank is provided on one side of the waste gas desulfurization tower, and the other side of the waste gas desulfurization tower is connected to the primary dust removal tank through an air intake head, a waste liquid treatment box is provided at the bottom of the waste gas desulfurization tower, a filter residue box is provided at the bottom of the waste liquid treatment box, a base is provided at the bottom of the filter residue box, and a catalyst is provided in the middle of the waste gas desulfurization tower.
[0007] In a further embodiment, a liquid upper pump is provided on the top of the desulfurizer storage tank, a spray hood is provided at the upper position of the inner cavity of the exhaust gas desulfurization tower, an air pipe is provided on one side of the spray hood, and the air pipe is connected to the liquid upper pump.
[0008] In a further embodiment, a filter element is provided inside the secondary dust hood, and a dust suction port is provided at the bottom of the secondary dust hood.
[0009] In a further embodiment, a plug is provided on one side of the top of the waste liquid treatment box, and the bottom of the desulfurization agent storage tank is assembled with the plug.
[0010] In a further embodiment, a waste residue filter plate is provided in the middle of the filter residue box, and an activated carbon adsorption filter element is provided inside the waste liquid treatment box.
[0011] In a further embodiment, an exhaust gas inlet is provided at the top of the first-level dust removal tank, and a filter layer is provided inside the first-level dust removal tank.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model has a secondary dust removal hood on the top of the waste gas desulfurization tower, through which the waste gas after spraying treatment can be dusted again, making the dust removal and purification more thorough. One side of the waste gas desulfurization tower is connected to the primary dust removal tank through an air inlet head, and preliminary dust removal can be performed through the primary dust removal tank, which can avoid the influence of impurities in the desulfurization process and improve the waste gas treatment effect.
[0014] The utility model has a waste liquid treatment box at the bottom of the waste gas desulfurization tower, and an activated carbon adsorption filter element is arranged inside the waste liquid treatment box, so that the waste liquid can be filtered, the spray liquid can be recycled, and resources can be saved. A filter residue box is arranged at the bottom of the waste liquid treatment box, and a waste residue filter plate is arranged in the filter residue box, which is convenient for collecting the waste residue after desulfurization. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1This is a schematic structural diagram of a desulfurization device for treating waste gas from graphite negative electrode materials according to the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the waste gas desulfurization tower of the utility model;
[0017] Figure 3 This is a front view of the waste liquid treatment box of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the first-level dust removal tank of the utility model;
[0019] Figure 5 It is a bottom view of the two-stage dust removal hood of the utility model.
[0020] In the figure: 1. Exhaust pipe; 2. Fan; 3. Secondary dust removal hood; 4. Waste gas desulfurization tower; 5. Upper liquid pump; 6. Desulfurizer storage tank; 7. Waste gas inlet; 8. First-stage dust removal tank; 9. Air intake head; 10. Waste liquid treatment box; 11. Waste residue filter plate; 12. Base; 13. Filter residue box; 14. Gas pipeline; 15. Spray hood; 16. Catalyst; 17. Filter layer; 18. Plug. DETAILED DESCRIPTION
[0021] 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.
[0022] See also Figure 1-5 The utility model provides an embodiment: a desulfurization device for treating waste gas from graphite negative electrode materials, comprising a secondary dust removal hood 3, a waste gas desulfurization tower 4, a desulfurizer storage tank 6 and a primary dust removal tank 8, a secondary dust removal hood 3 is provided on the top of the waste gas desulfurization tower 4, the top of the secondary dust removal hood 3 is connected to the exhaust pipe 1 through a fan 2, a desulfurizer storage tank 6 is provided on one side of the waste gas desulfurization tower 4, and the other side of the waste gas desulfurization tower 4 is connected to the primary dust removal tank 8 through an air intake head 9, a waste liquid treatment box 10 is provided at the bottom of the waste gas desulfurization tower 4, a filter residue box 13 is provided at the bottom of the waste liquid treatment box 10, a base 12 is provided at the bottom of the filter residue box 13, and a catalyst 16 is provided in the middle of the waste gas desulfurization tower 4.
[0023] The secondary dust removal hood 3 is used to filter the waste gas after spraying, the fan 2 is used to control the gas to be discharged from the exhaust pipe 1, and the desulfurizing agent storage tank 6 is used to store the desulfurizing agent.
[0024] Furthermore, an upper liquid pump 5 is provided on the top of the desulfurizer storage tank 6, and a spray hood 15 is provided at the upper position of the inner cavity of the exhaust gas desulfurization tower 4. An air supply pipe 14 is provided on one side of the spray hood 15, and the air supply pipe 14 is connected to the upper liquid pump 5, and the spray liquid is evenly sprayed through the spray hood 15.
[0025] Furthermore, a filter element is provided inside the secondary dust hood 3, and a dust suction port is provided at the bottom of the secondary dust hood 3.
[0026] Furthermore, a plug 18 is provided on one side of the top of the waste liquid treatment box 10 , and the bottom of the desulfurizing agent storage tank 6 is assembled with the plug 18 , so that the plug 18 facilitates the assembly of the waste liquid treatment box 10 and the desulfurizing agent storage tank 6 .
[0027] Furthermore, a waste residue filter plate 11 is provided in the middle of the filter residue box 13 , and an activated carbon adsorption filter element is provided inside the waste liquid treatment box 10 , and the waste residue after desulfurization can be collected through the waste residue filter plate 11 .
[0028] Furthermore, a waste gas inlet 7 is provided at the top of the primary dust removal tank 8 , and a filter layer 17 is provided inside the primary dust removal tank 8 , so that the introduction of waste gas is facilitated through the waste gas inlet 7 .
[0029] Working principle: When in use, the exhaust gas is added from the exhaust gas inlet 7, and the dust is filtered through the filter layer 17 in the primary dust removal tank 8. After dust removal and filtration, it is discharged into the exhaust gas desulfurization tower 4 through the air inlet head 9. The spray liquid in the desulfurizer storage tank 6 is transported from the air pipe 14 to the spray hood 15 through the upper liquid pump 5. The spray hood 15 sprays the exhaust gas to perform spray desulfurization treatment. The liquid after spraying is received and purified by the waste liquid treatment box 10, and can flow up to the desulfurizer storage tank 6 for circulation and purification. The desulfurization waste residue can be collected through the filter residue box 13 and filtered through the waste residue filter plate 11. The sprayed exhaust gas is filtered and purified through the secondary dust removal hood 3, and then discharged from the exhaust pipe 1 under the action of the fan 2.
[0030] 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 desulfurization device for treating waste gas from graphite negative electrode materials, comprising a secondary dust removal hood (3), a waste gas desulfurization tower (4), a desulfurization agent storage tank (6) and a primary dust removal tank (8), characterized in that: A secondary dust removal hood (3) is provided at the top of the exhaust gas desulfurization tower (4), and the top of the secondary dust removal hood (3) is connected to the exhaust pipe (1) via a fan (2). A desulfurization agent storage tank (6) is provided on one side of the exhaust gas desulfurization tower (4), and the other side of the exhaust gas desulfurization tower (4) is connected to the primary dust removal tank (8) via an air inlet head (9). A waste liquid treatment box (10) is provided at the bottom of the exhaust gas desulfurization tower (4), and a filter residue box (13) is provided at the bottom of the waste liquid treatment box (10), and a base (12) is provided at the bottom of the filter residue box (13). A catalyst (16) is provided in the middle of the exhaust gas desulfurization tower (4).
2. A desulfurization device for treating waste gas from graphite negative electrode materials according to claim 1, characterized in that: A liquid upper pump (5) is provided on the top of the desulfurizing agent storage tank (6), a spray hood (15) is provided at the upper position of the inner cavity of the exhaust gas desulfurization tower (4), an air supply pipe (14) is provided on one side of the spray hood (15), and the air supply pipe (14) is connected to the liquid upper pump (5).
3. A desulfurization device for treating waste gas from graphite negative electrode materials according to claim 1, characterized in that: A filter element is provided inside the secondary dust removal cover (3), and a dust suction port is provided at the bottom of the secondary dust removal cover (3).
4. A desulfurization device for treating waste gas from graphite negative electrode materials according to claim 1, characterized in that: A plug (18) is provided on one side of the top of the waste liquid treatment box (10), and the bottom of the desulfurizing agent storage tank (6) is inlaid and assembled with the plug (18).
5. A desulfurization device for treating waste gas from graphite negative electrode materials according to claim 1, characterized in that: A waste residue filter plate (11) is provided in the middle of the filter residue box (13), and an activated carbon adsorption filter element is provided inside the waste liquid treatment box (10).
6. A desulfurization device for treating waste gas from graphite negative electrode materials according to claim 1, characterized in that: An exhaust gas inlet (7) is provided at the top of the primary dust removal tank (8), and a filter layer (17) is provided inside the primary dust removal tank (8).