A device for preparing a hundred-gram spain material

Abstract

The utility model discloses a kind of preparation devices of hundred gram level SPAN material, including vulcanizer, gas processor, the vulcanization cavity is formed in the vulcanizer, external setting heating component and heat preservation component, the vulcanizer is also installed with gas discharge pipe, elemental sulfur discharge pipe, the end of the gas discharge pipe is connected with porous tube, the porous tube is placed in the gas processor, the gas processor is also filled with sodium hydroxide solution and has bower ring material.The utility model directly handles the gas generated after preparing SPAN, without being transferred to another closed environment to absorb and handle hydrogen sulfide gas, save steps, simple operation, conducive to the amplification of production scale.

Description

Technical Field

[0001] This utility model relates to a device for preparing SPAN materials, specifically a device for preparing 100-gram-level SPAN materials. Background Technology

[0002] Sulphurized polyacrylonitrile (SPAN) is a novel cathode material for sulfur-containing lithium-ion batteries. SPAN is typically prepared by heating a mixture of polyacrylonitrile (PAN) and elemental sulfur (S). In addition to SPAN, hydrogen sulfide (H2S) gas is generated as a reaction product. To prevent hydrogen sulfide gas leakage, the sulfidation reaction is generally carried out in a closed system. After the sulfidation reaction is complete, the hydrogen sulfide gas and excess reactants generated during the reaction are absorbed and disposed of in another closed environment. The reaction process is lengthy and cumbersome, hindering large-scale production. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this invention provides a 100-gram-level SPAN material preparation device. This invention directly treats the generated gas after SPAN preparation, eliminating the need to transfer it to another closed environment for absorption and treatment of hydrogen sulfide gas, thus saving steps, simplifying operation, and facilitating scale-up of production.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: a 100-gram-level SPAN material preparation device, comprising a vulcanizer and a gas processor, wherein a vulcanizing chamber is formed inside the vulcanizer and a heating component and a heat preservation component are provided on the outside; the vulcanizer is also equipped with a gas discharge pipe and a single-element sulfur discharge pipe; the end of the gas discharge pipe is connected to a porous pipe, the porous pipe is placed inside the gas processor, and the gas processor is also filled with sodium hydroxide solution and Pall ring material.

[0005] The vulcanizer is composed of two containers, each with an opening on one side and a mounting flange on the opening side. The two containers are fixedly connected by the mounting flange after their openings are joined together. The mounting flange is also equipped with a sealing ring.

[0006] Both containers have spiral grooves on their outer walls, and the heating assembly uses heating wires, which are wound around the outer walls of both containers.

[0007] Multiple temperature sensors are installed on the inner wall of the container.

[0008] A feed pipe is also installed at the top of the vulcanizer.

[0009] The porous tube is fixed in an S-shape and has air vents on its surface.

[0010] The Pall ring is made of cylindrical material with a diameter of 38 mm and a height of 38 mm.

[0011] The gas processor is equipped with a liquid inlet pipe and a gas outlet pipe.

[0012] In summary, this utility model achieves the following technical effects:

[0013] This invention combines the preparation of SPAN with gas processing, eliminating the need to transfer the preparation container to another sealed container. It enables direct gas processing, saves steps, simplifies operation, and facilitates large-scale production. Attached Figure Description

[0014] Figure 1 It is a device for preparing 100-gram-scale SPAN materials;

[0015] Figure 2 yes Figure 1 A cross-sectional schematic diagram. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Example:

[0023] Figure 1 This is a device for preparing 100-gram-level SPAN material, including a vulcanizer 1 and a gas processor 8. The vulcanizer 1 has a vulcanization chamber inside and heating and insulation components on the outside. The vulcanizer 1 is also equipped with a gas discharge pipe 7 and a single-element sulfur discharge pipe 13. The end of the gas discharge pipe 7 is connected to a porous pipe 9, which is placed inside the gas processor 8. The gas processor 8 is also filled with sodium hydroxide solution and Pall ring material 10.

[0024] Figure 2 yes Figure 1 The cross-sectional schematic diagram shows that the vulcanizer 1 is composed of two containers. Each container is open on one side, and a mounting flange 101 is provided on the open side. The two containers are fixedly connected by the mounting flange 101 after their openings are joined together. The mounting flange 101 is also provided with a sealing ring.

[0025] This utility model's vulcanizer 2 is composed of two connected containers, secured by flanges and sealed with a sealing ring to ensure internal airtightness. A pressure gauge 5 is also installed to measure the internal pressure and adjust it promptly. The two-container connection method is more convenient, forming a vulcanization chamber inside for holding the reaction mixture of polyacrylonitrile (PAN) and elemental sulfur (S). The hydrogen sulfide gas produced after the reaction enters the gas processor 8 through the gas exhaust pipe 7 for processing, while the elemental sulfur produced is discharged through the elemental sulfur exhaust pipe 13.

[0026] This invention features a container with a sealable structure, along with valve assemblies for the inlet and outlet pipes, achieving a sealing effect. The valves are opened when feeding or discharging materials and closed during the reaction, making it convenient to use.

[0027] Both containers have spiral grooves 102 on their outer walls, and the heating assembly uses heating wire 2, which is wound around the outer walls of both containers.

[0028] This utility model's heating assembly uses heating wires, which are directly wound around the outer wall of the container. One heating wire is wound around one container, and the ends 201 of the two heating wires are connected to a temperature controller (not shown) for better control of the internal temperature and to ensure that the temperature is consistent throughout the container. A commonly available model of temperature controller can be used.

[0029] The heating element directly heats the container, allowing for better control of the heating process and reduced temperature loss.

[0030] The insulation components use commonly available insulation cotton to wrap the entire equipment.

[0031] Multiple temperature sensors are installed on the inner wall of the container. These temperature sensors should be corrosion-resistant and alkali-resistant, preferably wireless, eliminating the need for wiring. They are directly installed at multiple locations on the inner wall of the container, and the data is displayed on a screen, allowing for real-time monitoring of the temperature at each location to facilitate adjustment of the heating wire temperature.

[0032] The upper part of the vulcanizer 1 is also equipped with a feed pipe 6 for adding the reaction material after the polyacrylonitrile (PAN) and elemental sulfur (S) are mixed.

[0033] The porous tube 9 is fixed in an S-shape and has vent holes 901 on its surface. Hydrogen sulfide gas enters the sodium hydroxide solution through multiple holes, dispersing the gas and allowing for more complete contact between the gas and the solution, resulting in a more complete reaction.

[0034] The Pall ring material 10 is cylindrical, with a diameter of 38 mm and a height of 38 mm. This invention, by filling the interior with Pall ring material, increases the contact time between the gas and the solution, resulting in a more complete reaction. The Pall ring material 10 is stacked around the porous tube 9, with its height lower than the solution surface.

[0035] The gas processor 8 is equipped with a liquid inlet pipe 11 and a gas outlet pipe 12 for adding sodium hydroxide solution and discharging the treated gas. It is also equipped with a discharge pipe for discharging the sodium sulfide generated during the reaction.

[0036] It also includes a valve assembly installed on the gas discharge pipe 7, the elemental sulfur discharge pipe 13, the feed pipe 6, the liquid inlet pipe 11, the gas outlet pipe 12, and the discharge pipe.

[0037] For the two independent processes of sulfidation and desulfurization in the preparation of small quantities at the gram level, this application combines the two independent processes of sulfidation and desulfurization into a continuous process in the preparation device at the hundred-gram level. The sulfidation reaction is carried out in the sulfidator and the hydrogen sulfide gas is treated in the gas processor. That is, after the sulfidation reaction is completed, the subsequent removal of hydrogen sulfide gas and residual sulfur from the sulfidation reaction is carried out directly.

[0038] Combining two independent processes into a continuous process not only simplifies the preparation of SPAN materials, but also makes the process of removing hydrogen sulfide gas and residual sulfur from the sulfidation reaction easier to engineer.

[0039] Temperature sensors and pressure gauges are installed to facilitate real-time display of reaction process parameters such as temperature and pressure. Temperature and pressure detectors are installed at different locations within the preparation apparatus, and digital instruments display the temperature or pressure data at the monitored points in real time.

[0040] Installing pipelines and valves allows for convenient adjustment and control of the internal pressure and atmosphere of the reaction system during the SPAN material preparation process. It also facilitates the replenishment and extraction of gas within the reaction system and allows for continuous or intermittent adjustment and control of the internal pressure and atmosphere during the SPAN material preparation process.

[0041] This invention effectively combines two independent processes in SPAN material preparation into a single, controllable, and systematically managed SPAN material preparation device. The device simplifies operation, facilitates material preparation, makes the reaction process easier to control, and significantly improves preparation efficiency.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A device for preparing 100-gram-level SPAN material, characterized in that: The device includes a vulcanizer (1) and a gas processor (8). The vulcanizer (1) has a vulcanization chamber inside and heating and insulation components on the outside. The vulcanizer (1) is also equipped with a gas discharge pipe (7) and a single sulfur discharge pipe (13). The end of the gas discharge pipe (7) is connected to a porous pipe (9). The porous pipe (9) is placed inside the gas processor (8). The gas processor (8) is also filled with sodium hydroxide solution and Pall ring material (10).

2. The apparatus for preparing 100-gram-level SPAN material according to claim 1, characterized in that: The vulcanizer (1) is composed of two containers, each container having an opening on one side and a mounting flange (101) on the opening side. The two containers are fixedly connected by the mounting flange (101) after their openings are joined together. The mounting flange (101) is also provided with a sealing ring.

3. The apparatus for preparing 100-gram-level SPAN material according to claim 2, characterized in that: Both containers have spiral grooves (102) on their outer walls, and the heating assembly uses heating wire (2), which is wound around the outer walls of both containers.

4. The apparatus for preparing 100-gram-level SPAN material according to claim 2, characterized in that: The inner wall of the container is equipped with multiple temperature sensors (4).

5. The apparatus for preparing 100-gram-level SPAN material according to claim 1, characterized in that: The vulcanizer (1) is also provided with a feed pipe (6) at its upper part.

6. The apparatus for preparing 100-gram-level SPAN material according to claim 1, characterized in that: The porous tube (9) is fixed in an S-shape and has an air outlet (901) on its surface.

7. The apparatus for preparing 100-gram-level SPAN material according to claim 1, characterized in that: The Pall ring material (10) is cylindrical with a diameter of 38 mm and a height of 38 mm.

8. The apparatus for preparing 100-gram-level SPAN material according to claim 1, characterized in that: The gas processor (8) is provided with a liquid inlet pipe (11) and a gas outlet pipe (12).

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