Simple treatment device for electrolyte vacuum pump exhaust gas

Abstract

The utility model relates to a lithium ion battery, concretely relates to a simple and easy processing device of electrolyte vacuum pump tail gas, including equipment main body and exhaust mechanism, the equipment main body is set with the liquid accumulation area, demisting area, filter area, acidic adsorption area and activated carbon adsorption area from below to top respectively, and each function area is communicated in proper order and forms tail gas flow channel, the liquid accumulation area is provided with liquid accumulation container, the demisting area is filled with PP silk screen demister filler, the filter area is filled with synthetic fiber filter cotton, the acidic adsorption area is provided with cylindrical SDG acidic adsorbent, and the activated carbon adsorption area is filled with massive honeycomb activated carbon, and the tail gas of vacuum pump is inhaled into the equipment main body from the liquid accumulation area, and is discharged after being treated and purified in proper order along the tail gas flow channel, the utility model can effectively remove the electrolyte and vacuum pump oil that volatilize in the electrolyte vacuum pump tail gas of lithium battery industry, has simple structure, good purification effect and small occupied area and the advantages such as.

Description

Technical Field

[0001] This utility model relates to lithium-ion batteries, specifically to a simple device for treating the exhaust gas of an electrolyte vacuum pump. Background Technology

[0002] The exhaust gas from the electrolyte vacuum pump in the lithium battery industry includes volatile electrolyte and vacuum pump oil. Its main components are dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, propylene carbonate, etc., with small amounts of lithium hexafluorophosphate and its decomposition products such as hydrogen fluoride and phosphorus pentafluoride, as well as a small amount of vacuum pump oil. The composition is complex, viscous, and somewhat corrosive. There are few treatment processes available for the exhaust gas from the electrolyte vacuum pump in the lithium battery industry, and the existing methods are complex and costly. These include alkaline washing, adsorption, condensation, oxidation combustion, biological methods, and combinations thereof. Furthermore, for older, larger-scale plants, the gaseous pollution sources are mostly dispersed, making centralized treatment difficult, costly, and challenging to operate and maintain. Land scarcity also poses a problem. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a simple treatment device for the exhaust gas of an electrolyte vacuum pump. It mainly uses acid adsorption and adopts a vertical structure. It uses gravity and material resistance to collect the oily liquid carried by the exhaust gas in a fixed area for gas-liquid separation. At the same time, the vertical structure can also reduce the footprint of the device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a simple treatment device for the exhaust gas of an electrolyte vacuum pump, comprising a main body and an exhaust mechanism. The main body is provided with a liquid accumulation zone, a demisting zone, a filtration zone, an acid adsorption zone, and an activated carbon adsorption zone. A liquid accumulation container is provided in the liquid accumulation zone, a demisting device is provided in the demisting zone, filter cotton is filled in the filtration zone, acid adsorption agent is filled in the acid adsorption zone, and block activated carbon is filled in the activated carbon adsorption zone. The liquid accumulation zone, demisting zone, filtration zone, acid adsorption zone, and activated carbon adsorption zone are sequentially connected to form an exhaust gas flow channel. An air inlet pipe is provided on the main body, the air outlet of the air inlet pipe is located in the liquid accumulation zone, and the air inlet end of the air inlet pipe is located at the exhaust gas discharge point of the vacuum pump. The air inlet end of the exhaust mechanism is connected to the activated carbon adsorption zone. The exhaust gas of the vacuum pump is introduced into the main body of the device by the exhaust mechanism and discharged after being treated along the exhaust gas flow channel.

[0005] As an optional technical solution, the liquid accumulation zone, demisting zone, filtration zone, acid adsorption zone, and activated carbon adsorption zone are distributed sequentially from bottom to top.

[0006] As an optional technical solution, the demister is filled with PP wire mesh, the filter cotton is made of synthetic fiber, the acid adsorbent is columnar SDG acid adsorbent, and the activated carbon is block honeycomb activated carbon.

[0007] As an optional technical solution, the liquid collection container is equipped with an inlet and a outlet.

[0008] As an optional technical solution, a processing chamber is provided inside the main body of the equipment. The processing chamber runs through the side end face of the main body of the equipment and communicates with the outside. Several partition nets are arranged from bottom to top in the processing chamber. Each partition net divides the processing chamber into several partition areas, namely, liquid accumulation area, demisting area, filtration area, acid adsorption area and activated carbon adsorption area. Each partition area is provided with a drawer box, and the bottom plate of the drawer box is provided with mesh.

[0009] As an optional technical solution, a filter cotton layer is installed below the drawer box in the acid adsorption zone.

[0010] As an optional technical solution, the main body of the equipment is made of PP material.

[0011] Compared with the prior art, the advantages of this utility model are as follows: 1. The device of this utility model adopts a vertical structure. During the treatment of exhaust gas, due to gravity and the resistance of materials in each separation zone, impurities such as oily liquid carried by the exhaust gas will be collected in the designated separation zone, which facilitates gas-liquid separation and ensures the purification and treatment capacity of materials in the subsequent separation zone; 2. The vertical structure design makes the device occupy a relatively small area, which can effectively save space; 3. The device uses dry SDG acid adsorbent and PP material for the main body of the device, which can effectively resist the corrosive effect of exhaust gas. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a front view of the device; Figure 2 This is a side view of the device; In the diagram: 1. Main body of the equipment, 11. Liquid accumulation area, 12. Demisting area, 13. Filtration area, 14. Acidic adsorption area, 15. Activated carbon adsorption area, 2. Exhaust system, 3. Air inlet duct. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0015] like Figure 1 , Figure 2 As shown, a simple treatment device for the exhaust gas of an electrolyte vacuum pump includes a main body 1 and an exhaust mechanism 2. The main body 1 is provided with a liquid accumulation zone 11, a demisting zone 12, a filtration zone 13, an acid adsorption zone 14, and an activated carbon adsorption zone 15. The liquid accumulation zone 11, the demisting zone 12, the filtration zone 13, the acid adsorption zone 14, and the activated carbon adsorption zone 15 are sequentially connected to form an exhaust gas flow channel. An air inlet pipe 3 is provided on the main body 1. The air outlet of the air inlet pipe 3 is located in the liquid accumulation zone 11, and the air inlet of the air inlet pipe 3 is located at the exhaust gas discharge point of the vacuum pump. The air inlet of the exhaust mechanism 2 is connected to the activated carbon adsorption zone 15. When the exhaust mechanism 2 is working, the exhaust gas from the vacuum pump is drawn into the liquid accumulation zone 11 from the air inlet pipe 3, passes sequentially through the demisting zone 12, the filtration zone 13, the acid adsorption zone 14, and the activated carbon adsorption zone 15 along the exhaust gas flow channel, and is discharged from the air outlet of the exhaust mechanism 2. The exhaust gas undergoes corresponding purification treatment in the demisting zone 12, the filtration zone 13, the acid adsorption zone 14, and the activated carbon adsorption zone 15, respectively.

[0016] The liquid accumulation zone 11, demisting zone 12, filtration zone 13, acidic adsorption zone 14, and activated carbon adsorption zone 15 are distributed sequentially from bottom to top. A liquid accumulation container is provided in the liquid accumulation zone 11; a demister is provided in the demisting zone 12, preferably filled with PP wire mesh; filter cotton is filled in the filtration zone 13, preferably synthetic fiber filter cotton; acidic adsorption zone 14 is filled with acidic adsorbent, preferably columnar SDG acidic adsorbent; and activated carbon adsorption zone 15 is filled with block activated carbon, preferably blocky honeycomb activated carbon.

[0017] Under the suction of the exhaust mechanism 2, the vacuum pump exhaust gas enters the liquid accumulation zone 11 through the air inlet pipe 3, and then enters the demisting zone 12. The demisting zone 12 physically traps some of the volatile electrolyte and vacuum pump oil in the exhaust gas. The exhaust gas continues to enter the filtration zone 13, where the filter cotton further intercepts the electrolyte and vacuum pump oil in the exhaust gas. The intercepted substances will flow back to the liquid accumulation zone 11 under the action of gravity and fall into the liquid accumulation container. The exhaust gas in the filtration zone 13 continues to enter the acid adsorption zone 14, where the acid adsorbent removes the acidic substances carried by the exhaust gas. The treated gas continues to enter the activated carbon adsorption zone 15, where the activated carbon adsorbs the remaining pollutants in the gas. After being treated in the activated carbon adsorption zone 15, the exhaust gas is fully purified and then discharged into the atmosphere by the exhaust mechanism 2.

[0018] In the liquid accumulation zone 11, the liquid accumulation container can be open and connected to the demisting zone 12, or it can be connected to the demisting zone 12 through a dedicated conduit, so that the substances intercepted in the upper functional area can flow back into the liquid accumulation container. The liquid accumulation container is also provided with an inlet and an outlet. The outlet is provided for cleaning the substances collected in the liquid accumulation container, and the inlet is provided for introducing alkaline liquid into the liquid accumulation container to achieve soaking and cleaning of the liquid accumulation container.

[0019] The exhaust mechanism 2 uses an exhaust fan, and an exhaust duct can be configured at the air outlet of the exhaust mechanism 2 to discharge the exhaust gas to a designated location.

[0020] As a further technical solution, the main body 1 of the equipment is made of PP material. A processing chamber is provided inside the main body 1, extending through one side end and communicating with the outside of the main body 1. Several partition meshes are installed within the processing chamber, dividing it into several partitioned areas. These partitioned areas are arranged vertically, from bottom to top as follows: liquid accumulation area 11, demisting area 12, filtration area 13, acid adsorption area 14, and activated carbon adsorption area 15. Each partitioned area is equipped with a drawer box. The drawer box has an open top and a bottom plate with mesh holes. The size of the drawer box is adapted to the internal space of the corresponding partitioned area. The drawer box can be inserted into the partitioned area and can be pulled out of the main body 1.

[0021] The liquid collection container is located in the drawer box of the liquid collection zone 11, the demister is located in the drawer box of the demister zone 12, the filter cotton is located in the drawer box of the filtration zone 13, the acidic adsorbent is located in the drawer box of the acidic adsorption zone 14, and the block activated carbon is located in the drawer box of the activated carbon adsorption zone 15. The materials for treating exhaust gases in each zone are placed in the corresponding drawer box for easy material replacement. Specifically, a layer of filter cotton is installed at the bottom of the drawer box in the acidic adsorption zone 14 to prevent the acidic adsorbent from falling into the filtration zone 13 through the gaps in the separator mesh.

[0022] Each drawer box has an end plate at one end. When the drawer box is within its corresponding compartment, the end plate is positioned at the opening of the compartment, fitting against the inner wall of the equipment body 1 or the processing chamber. Simultaneously, the end plate fits against the end plates of the adjacent drawer boxes above and / or below, or against the structure of the equipment body 1, thus creating a relative seal within the processing chamber. Furthermore, sealing tape or sealing cotton is used to seal the gaps between the end plates of adjacent drawer boxes and between each end plate and the equipment body 1. Each end plate also has a handle for easy drawer operation.

[0023] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A simple device for treating the exhaust gas of an electrolyte vacuum pump, characterized in that: The equipment includes a main body (1) and an exhaust system (2). The main body (1) is equipped with a liquid accumulation zone (11), a demisting zone (12), a filtration zone (13), an acidic adsorption zone (14), and an activated carbon adsorption zone (15). The liquid accumulation zone (11) is equipped with a liquid collection container. The demisting zone (12) is equipped with a demister. The filtration zone (13) is filled with filter cotton. The acidic adsorption zone (14) is filled with acidic adsorbent. The activated carbon adsorption zone (15) is filled with block activated carbon. The liquid accumulation zone (11), the demisting zone (12), and the exhaust system (2) are equipped with a liquid collection container. The main body (11), the demisting zone (12), and the exhaust system (2) are equipped with a liquid collection container. The main body (11), the demisting zone (12), and the exhaust system (2) are equipped with a liquid collection container. The main body (11), the demisting zone (12), and the exhaust system (2) are equipped with a liquid collection container. The main body (11), the demisting zone (12), and the exhaust system (2) are equipped with a liquid collection container. The main body (11), the main body ... The filter zone (13), acid adsorption zone (14) and activated carbon adsorption zone (15) are connected in sequence to form a tail gas flow channel. An air inlet pipe (3) is provided on the main body of the equipment (1). The air outlet of the air inlet pipe (3) is located in the liquid accumulation zone (11). The air inlet of the air inlet pipe (3) is located at the tail gas discharge point of the vacuum pump. The air inlet of the exhaust mechanism (2) is connected to the activated carbon adsorption zone (15). The tail gas of the vacuum pump is introduced into the main body of the equipment (1) by the exhaust mechanism (2) and discharged after being treated along the tail gas flow channel.

2. The simplified treatment device for electrolyte vacuum pump exhaust gas according to claim 1, characterized in that: The liquid accumulation zone (11), the demisting zone (12), the filtration zone (13), the acid adsorption zone (14), and the activated carbon adsorption zone (15) are distributed from bottom to top.

3. A simplified treatment device for electrolyte vacuum pump exhaust gas according to claim 2, characterized in that: The demister is filled with PP wire mesh, the filter cotton is made of synthetic fiber, the acid adsorbent is columnar SDG acid adsorbent, and the activated carbon is block honeycomb activated carbon.

4. A simplified treatment device for electrolyte vacuum pump exhaust gas according to claim 2, characterized in that: The liquid collection container is equipped with an inlet and an outlet.

5. A simplified treatment device for electrolyte vacuum pump exhaust gas according to any one of claims 2-4, characterized in that: The main body of the equipment (1) is provided with a processing chamber. The processing chamber runs through the side end face of the main body of the equipment (1) and communicates with the outside. Several partitions are arranged in the processing chamber from bottom to top. Each partition divides the processing chamber into several partition areas, namely the liquid accumulation area (11), the demisting area (12), the filtration area (13), the acid adsorption area (14), and the activated carbon adsorption area (15). Each partition area is provided with a drawer box. The bottom plate of the drawer box is provided with mesh.

6. A simplified treatment device for electrolyte vacuum pump exhaust gas according to claim 5, characterized in that: The acid adsorption zone (14) has a filter cotton layer installed below the drawer box.

7. A simplified treatment device for electrolyte vacuum pump exhaust gas according to claim 5, characterized in that: The main body of the equipment (1) is made of PP material.

Images