Novel waste gas condensation filter

Abstract

The utility model discloses a novel waste gas condensation filter, which belongs to filtering equipment in the technical field of NMP (N-Methyl Pyrrolidone) waste gas treatment filtering equipment. The condensation cylinder is fixedly arranged on the supporting frame; the waste liquid collecting tank is fixedly arranged on the supporting frame and is communicated with the liquid outlet end of the condensing cylinder; a waste gas pipeline is arranged in the condensation cylinder, and a spiral condensation plate and a spiral condensation pipe are fixedly arranged on the outer wall of the waste gas pipeline; according to the novel waste gas condensation filter provided by the utility model, the condensation cylinder and the waste liquid collection tank are sequentially arranged on the support frame from top to bottom, and the spiral condensation plate and the spiral condensation pipe are arranged in the condensation cylinder, so that better condensation treatment on waste gas and discharge of waste liquid are realized through the matching of the condensation cylinder and the spiral condensation pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of NMP exhaust gas treatment and filtration equipment, specifically relating to a novel exhaust gas condensation filter. Background Technology

[0002] N-Methylpyrrolidone (NMP) is a highly polar aprotic solvent. It appears as a colorless, transparent, or slightly yellow oily liquid with a faint amine odor and is mildly irritating to the skin. NMP is a very useful organic solvent, widely used as an additive in electrolytes during battery production. It improves battery conductivity and stability while reducing internal gas generation, thus enhancing battery safety and performance. Furthermore, NMP can be used as an additive in both positive and negative electrode materials for the preparation of high-performance carbide batteries. It can also be used as a solvent for battery separators to improve their performance and stability. In summary, NMP has important applications in carbide battery production and is a very useful organic solvent.

[0003] During lithium battery production, NMP waste gas is generated in processes such as coating and baking, and this waste gas contains pollutants such as lead dust / fumes and acid mist. Effective waste gas treatment measures should be implemented during lithium battery production to reduce NMP emissions. Common treatment methods include catalytic combustion and recycling.

[0004] Most existing NMP recovery methods involve directly filtering the exhaust gas through filters. However, these methods cannot effectively separate high-temperature gases, acid mists, and lead dust from the exhaust gas. Furthermore, the direct entry of acid mists and lead dust into the filters can easily clog the filter elements, significantly shortening the filter's lifespan. Utility Model Content

[0005] The purpose of this utility model is to provide a novel exhaust gas condensation filter, which consists of a condensation cylinder and a waste liquid collection tank arranged sequentially from top to bottom on a support frame, and a spiral condensation plate and a spiral condensation tube arranged in the condensation cylinder. Through the cooperation of the two, better condensation treatment of exhaust gas and discharge of waste liquid can be achieved.

[0006] The objective of this utility model is achieved as follows: a novel exhaust gas condensate filter, comprising:

[0007] Support frame;

[0008] A condenser cylinder, which is fixedly mounted on the support frame;

[0009] A waste liquid collection tank, which is fixedly mounted on the support frame and connected to the liquid outlet end of the condenser cylinder; and

[0010] The condenser cylinder is equipped with an exhaust gas pipe inside, and a spiral condenser plate and a spiral condenser tube are fixedly installed on the outer wall of the exhaust gas pipe.

[0011] Furthermore, the upper end of the condenser cylinder is provided with an exhaust gas inlet pipe that communicates with the interior of the condenser cylinder. The exhaust gas pipe is located at the central axis of the condenser cylinder, passes through the upper end plate of the condenser cylinder and is fixedly connected to the upper end plate, and the end of the exhaust gas pipe is located near the bottom of the condenser cylinder.

[0012] Furthermore, the input and output ends of the spiral condenser are both fixedly mounted on the upper end plate. The spiral condenser is spirally distributed along the length of the exhaust gas pipe to form two layers of pipes. The surface of the spiral condenser plate is disposed between the two layers of pipes and forms a matching spiral distribution.

[0013] Furthermore, both the inlet and outlet ends of the spiral condenser are equipped with cold water valves on the upper end plate.

[0014] Furthermore, the outer wall of the condenser cylinder is provided with a heat insulation layer.

[0015] Furthermore, the upper end of the condenser cylinder is provided with a refrigerant outlet pipe communicating with the interior of the condenser cylinder, and the lower end of the condenser cylinder is provided with a refrigerant inlet pipe communicating with the interior of the condenser cylinder.

[0016] Furthermore, a shut-off valve is installed on the pipe connecting the waste liquid collection tank and the condenser cylinder, and a waste liquid discharge pipe is installed at the bottom of the waste liquid collection tank, with a waste liquid discharge valve installed on the waste liquid discharge pipe.

[0017] Furthermore, the upper end of the waste liquid collection tank is provided with a pressure relief pipe that communicates with the inside of the waste liquid collection tank, and the pressure relief pipe is provided with a pressure relief valve.

[0018] Furthermore, a waste liquid spillage prevention plate is provided at the bottom of the support frame.

[0019] The beneficial effects of this utility model are reflected in:

[0020] 1. In this utility model, a condenser cylinder and a waste liquid collection tank are sequentially arranged from top to bottom on a support frame, and waste gas is introduced into the condenser cylinder to condense the waste gas. The condensed and settled liquid is discharged into the waste liquid collection tank for centralized collection and discharge. More specifically, a waste gas pipe is provided in the condenser cylinder, and a spiral condenser plate and a spiral condenser tube are fixedly provided on the outer wall of the waste gas pipe. The spiral condenser plate and the spiral condenser tube are arranged on the outer wall of the waste gas pipe and placed in the condenser cylinder, which expands the contact area for condensing the waste gas in the condenser cylinder, thereby improving the condensation effect. The cooperative arrangement of the spiral condenser tube and the spiral condenser plate further improves the condensation effect.

[0021] 2. In this utility model, by setting an exhaust gas inlet pipe at the upper end of the condenser cylinder, external exhaust gas is discharged into the condenser cylinder from the upper end, which has better contact with the condensation equipment in the condenser cylinder and improves the condensation effect. The exhaust gas pipe is located at the central axis of the condenser cylinder, the upper end of the exhaust gas pipe is connected to an external filter, and the lower end of the exhaust gas pipe is located near the bottom of the condenser cylinder. This realizes both the discharge of filtered gas and the fixed installation of the spiral condenser pipe and the spiral condenser plate.

[0022] 3. In this utility model, by setting a spiral condenser tube and placing both ends of the spiral condenser tube on the upper end plate, the tube body of the spiral condenser tube is arranged in a spiral distribution in a folded form. This results in the spiral condenser tube forming two spirally distributed pipes. The surface of the spiral condenser plate is then placed between the two pipes to form a matching spiral distribution. This creates a mutually cooperating spiral distribution between the spiral condenser plate and the spiral condenser tube, thereby increasing the condensation area in the condenser cylinder.

[0023] 4. In this utility model, by providing cold water valves on the upper end plate at both the input and output ends of the spiral condenser tube, the supply of coolant to the spiral condenser tube can be controlled at the upper end of the condenser cylinder, thereby improving the condensation effect inside the condenser cylinder.

[0024] 5. In this utility model, by setting a shut-off valve between the waste liquid collection tank and the condenser cylinder, and by setting a waste liquid discharge pipe and a waste liquid discharge valve at the bottom of the waste liquid collection tank, precise on / off control of the entire device is achieved, thereby improving the device's performance. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the overall structure of the condenser filter of this utility model;

[0027] Figure 2 This is a schematic diagram of the spiral condenser plate and spiral condenser tube of this utility model.

[0028] In the attached diagram, 1-support frame, 2-condenser cylinder, 3-waste liquid collection tank, 4-waste gas pipe, 5-spiral condenser plate, 6-spiral condenser tube, 7-waste gas inlet pipe, 8-upper end plate, 9-cold water valve, 10-insulation layer, 11-refrigerant outlet pipe, 12-refrigerant inlet pipe, 13-stop valve, 14-waste liquid discharge pipe, 15-waste liquid discharge valve, 16-pressure relief pipe, 17-pressure relief valve, 18-waste liquid spill prevention plate. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0031] Reference Figure 1 and Figure 2 A novel exhaust gas condensate filter includes:

[0032] Support frame 1;

[0033] Condenser 2, which is fixedly mounted on the support frame 1;

[0034] Waste liquid collection tank 3, which is fixedly mounted on the support frame 1 and connected to the liquid outlet end of the condenser cylinder 2; and

[0035] The condenser cylinder 2 is equipped with an exhaust gas pipe 4 inside, and a spiral condenser plate 5 and a spiral condenser tube 6 are fixedly installed on the outer wall of the exhaust gas pipe 4.

[0036] Understandably, by sequentially arranging interconnected condenser cylinders 2 and waste liquid collection tanks 3 from top to bottom on the support frame 1, and by introducing waste gas into the condenser cylinder 2 for condensation treatment, the condensed and settled liquid is discharged into the waste liquid collection tank 3 for centralized collection and discharge. More specifically, the condenser cylinder 2 is equipped with a waste gas pipe 4, and a spiral condenser plate 5 and a spiral condenser tube 6 are fixedly installed on the outer wall of the waste gas pipe 4. The spiral condenser plate 5 and the spiral condenser tube 6 are located on the outer wall of the waste gas pipe 4 and placed in the condenser cylinder 2, which expands the contact area for condensing the waste gas in the condenser cylinder 2, thereby improving the condensation effect. In particular, the cooperative arrangement of the spiral condenser tube 6 and the spiral condenser plate 5 improves the condensation effect.

[0037] The upper end of the condenser cylinder 2 is provided with an exhaust gas inlet pipe 7 that communicates with the interior of the condenser cylinder 2. The exhaust gas pipe 4 is located at the central axis of the condenser cylinder 2. The exhaust gas pipe 4 passes through the upper end plate 8 of the condenser cylinder 2 and is fixedly connected to the upper end plate 8. The end of the exhaust gas pipe 4 is located near the bottom of the condenser cylinder 2.

[0038] By setting an exhaust gas inlet pipe 7 at the upper end of the condenser cylinder 2, external exhaust gas is discharged into the condenser cylinder 2 from the upper end, which has better contact with the condensing equipment in the condenser cylinder 2 and improves the condensing effect. The exhaust gas pipe 4 is located at the central axis of the condenser cylinder 2. The upper end of the exhaust gas pipe 4 is connected to the external filter, and the lower end of the exhaust gas pipe 4 is located near the bottom of the condenser cylinder 2. This not only realizes the discharge of filtered gas, but also realizes the fixed installation of the spiral condenser pipe 6 and the spiral condenser plate 5.

[0039] In a preferred embodiment, the outlet of the exhaust pipe 4 can be connected to a filter for further filtration. Optionally, multiple filters can be connected to improve the filtration effect.

[0040] Preferably, the input and output ends of the spiral condenser 6 are both fixedly mounted on the upper end plate 8. The spiral condenser 6 is spirally distributed along the length of the exhaust gas pipe 4 to form two layers of pipes. The surface of the spiral condenser plate 5 is disposed between the two layers of pipes and forms a matching spiral distribution.

[0041] By setting a spiral condenser tube 6, with both ends of the spiral condenser tube 6 mounted on the upper end plate 8, the tube body of the spiral condenser tube 6 is arranged in a spiral configuration in a folded manner. This creates two spirally distributed pipes, allowing the spiral condenser plate 5 to be positioned between the two pipes and form a matching spiral distribution. This results in a mutually cooperating spiral distribution between the spiral condenser plate 5 and the spiral condenser tube 6, thereby increasing the condensation area in the condenser cylinder 2.

[0042] Preferably, both the input and output ends of the spiral condenser 6 are provided with cold water valves 9 on the upper end plate 8.

[0043] Understandably, by providing cold water valves 9 on the upper end plate 8 at both the inlet and outlet of the spiral condenser tube 6, the cooling liquid supply to the spiral condenser tube 6 can be controlled at the upper end of the condenser cylinder 2, thereby improving the condensation effect inside the condenser cylinder 2.

[0044] Preferably, the outer wall of the condenser cylinder 2 is provided with a heat insulation layer 10.

[0045] In a preferred embodiment, the upper end of the condenser cylinder 2 is provided with a refrigerant outlet pipe 11 communicating with the interior of the condenser cylinder 2, and the lower end of the condenser cylinder 2 is provided with a refrigerant inlet pipe 12 communicating with the interior of the condenser cylinder 2. Circulating water is used as the refrigerant. The refrigerant is input through the refrigerant inlet pipe 12 and output through the refrigerant outlet pipe 11. After cooling, it is then transported to the refrigerant inlet pipe by a pump or other power equipment.

[0046] Preferably, a shut-off valve 13 is provided on the pipe connecting the waste liquid collection tank 3 and the condenser cylinder 2, and a waste liquid discharge pipe 14 is provided at the bottom of the waste liquid collection tank 3, with a waste liquid discharge valve 15 provided on the waste liquid discharge pipe 14.

[0047] By installing a shut-off valve 13 between the waste liquid collection tank 3 and the condenser cylinder 2, and by installing a waste liquid discharge pipe 14 and a waste liquid discharge valve 15 at the bottom of the waste liquid collection tank 3, precise on / off control of the entire device is achieved, thereby improving the device's performance.

[0048] Preferably, the upper end of the waste liquid collection tank 3 is provided with a pressure relief pipe 16 that communicates with the interior of the waste liquid collection tank 3, and the pressure relief pipe 16 is provided with a pressure relief valve 17.

[0049] In a preferred embodiment, the waste liquid collection tank 3 is equipped with a level gauge. When the waste liquid is nearly full, manual drainage is required. To drain, first close the shut-off valve 13 on the waste liquid tank, then open the pressure relief valve 17 on the waste liquid collection tank, and finally open the waste liquid discharge valve 15 to drain the waste liquid. **Important Note:** After completing the above operations, be sure to open the shut-off valve 13, close the pressure relief valve 17, and close the waste liquid discharge valve 15.

[0050] Preferably, the bottom of the support frame 1 is provided with a waste liquid spill prevention tray 18. The waste liquid spill prevention tray 18 can receive waste liquid discharged or dripped from the corresponding components above.

[0051] The above embodiments only describe the application of this utility model to the treatment of high-temperature waste gas containing NMP, but this utility model is also applicable to the treatment of other high-temperature waste gases with the same properties; for example, this utility model can also be used for high-temperature tail gas generated by blast furnace combustion.

[0052] The working principle and process of this utility model:

[0053] The novel exhaust gas condenser provided by this utility model allows exhaust gas containing NMP to enter the top of the condenser through the exhaust gas inlet pipe 7 and be fed into it. A condenser cylinder 2 and a waste liquid collection tank 3 are arranged sequentially from top to bottom on the support frame 1 and are interconnected. Exhaust gas is introduced into the condenser cylinder 2 so that the exhaust gas is condensed in the condenser cylinder 2. The liquid that has been condensed and settled is discharged into the waste liquid collection tank 3 for centralized collection and discharge.

[0054] More specifically, the condenser cylinder 2 is equipped with an exhaust gas pipe 4, and a spiral condenser plate 5 and a spiral condenser tube 6 are fixedly installed on the outer wall of the exhaust gas pipe 4. The spiral condenser plate 5 and the spiral condenser tube 6 are installed on the outer wall of the exhaust gas pipe 4 and placed in the condenser cylinder 2, which expands the contact area for condensing the exhaust gas in the condenser cylinder 2, thereby improving the condensation effect. The cooperative arrangement of the spiral condenser tube 6 and the spiral condenser plate 5 further enhances the condensation effect.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A novel exhaust gas condensate filter, characterized in that, include: Support frame (1); A condenser (2) is fixedly mounted on the support frame (1); Waste liquid collection tank (3), which is fixedly mounted on the support frame (1) and connected to the liquid outlet end of the condenser cylinder (2); and The condenser cylinder (2) is provided with an exhaust gas pipe (4) inside, and a spiral condenser plate (5) and a spiral condenser tube (6) are fixedly provided on the outer wall of the exhaust gas pipe (4); The upper end of the condenser (2) is provided with an exhaust gas inlet pipe (7) that communicates with the interior of the condenser (2). The exhaust gas pipe (4) is located at the central axis of the condenser (2). The exhaust gas pipe (4) passes through the upper end plate (8) of the condenser (2) and is fixedly connected to the upper end plate (8). The end of the exhaust gas pipe (4) is located near the bottom of the condenser (2). The input and output ends of the spiral condenser pipe (6) are both fixedly set on the upper end plate (8). The spiral condenser pipe (6) is spirally distributed along the length of the exhaust gas pipe (4) to form two layers of pipes. The surface of the spiral condenser plate (5) is set between the two layers of pipes to form a matching spiral distribution.

2. The novel exhaust gas condensate filter according to claim 1, characterized in that, Both the inlet and outlet ends of the spiral condenser (6) are equipped with cold water valves (9) on the upper end plate (8).

3. The novel exhaust gas condensate filter according to claim 1, characterized in that, The outer wall of the condenser cylinder (2) is provided with a heat insulation layer (10).

4. The novel exhaust gas condensate filter according to claim 1, characterized in that, The upper end of the condenser (2) is provided with a refrigerant outlet pipe (11) communicating with the interior of the condenser (2), and the lower end of the condenser (2) is provided with a refrigerant inlet pipe (12) communicating with the interior of the condenser (2).

5. The novel exhaust gas condensate filter according to claim 1, characterized in that, A shut-off valve (13) is installed on the pipe connecting the waste liquid collection tank (3) and the condenser cylinder (2). A waste liquid discharge pipe (14) is installed at the bottom of the waste liquid collection tank (3), and a waste liquid discharge valve (15) is installed on the waste liquid discharge pipe (14).

6. The novel exhaust gas condensate filter according to claim 5, characterized in that, The upper end of the waste liquid collection tank (3) is provided with a pressure relief pipe (16) that communicates with the inside of the waste liquid collection tank (3), and the pressure relief pipe (16) is provided with a pressure relief valve (17).

7. The novel exhaust gas condensate filter according to any one of claims 1-6, characterized in that, The bottom of the support frame (1) is provided with a waste liquid spill prevention plate (18).

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