Anhydrous aluminum chloride sublimation furnace

Abstract

The utility model discloses anhydrous aluminium chloride sublimate furnace, including hearth, mesh baffle, quartz tube and electric heater, the bottom of hearth is installed electric heater, and the middle part is equipped with mesh baffle, the outside of hearth is equipped with the thermal insulation structure package, and the thermal insulation structure of top surface is equipped with a plurality of assembly holes of assembly quartz tube, the bottom of quartz tube is spherical and abuts in one of mesh baffle's mesh. The utility model has simple structure, high sublimation efficiency, and wide range of adaptation etc.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to anhydrous aluminum trichloride sublimation furnace. Background Technology

[0002] Currently, in the battery field, lithium thionyl chloride batteries are the chemical batteries known to date with the highest energy and the highest specific energy, and are considered the "ultimate" high-energy chemical power source. They possess advantages such as high voltage, stable operating voltage, wide applicable temperature range, good low-temperature performance, and long shelf life. The applications of this battery are becoming increasingly widespread, with lithium aluminum tetrachlorosilane being an indispensable electrolyte.

[0003] Lithium aluminum tetrachlorochloride is prepared by mixing anhydrous aluminum trichloride and anhydrous aluminum chloride. Because lithium aluminum tetrachlorochloride is extremely hygroscopic and highly corrosive in air, its main reaction must be carried out under a dry argon atmosphere, where anhydrous aluminum trichloride and anhydrous lithium chloride are mixed and fused in an equimolar ratio.

[0004] Anhydrous aluminum trichloride is highly hygroscopic. Before synthesizing lithium tetrachloroaluminate, aluminum trichloride should be pre-sublimated and purified. Analytical grade anhydrous aluminum trichloride is placed in a pre-cleaned and dried sublimation furnace, nitrogen is introduced, and the furnace is turned on for sublimation. After sublimation is complete, the furnace is cooled to room temperature under nitrogen, and the purified aluminum trichloride is collected immediately and used as soon as possible.

[0005] Existing patent documents, such as CN105540629B which discloses an anhydrous aluminum trichloride boiling continuous sublimation device and CN211595055U which discloses an environmentally friendly aluminum trichloride sublimation collection device, demonstrate different sublimation devices.

[0006] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0007] The main purpose of this utility model is to propose an anhydrous aluminum trichloride sublimation furnace with a compact structure, wide applicability, and high working efficiency.

[0008] Therefore, this utility model proposes an anhydrous aluminum trichloride sublimation furnace.

[0009] Preferably, the present invention may also have the following technical features:

[0010] An anhydrous aluminum trichloride sublimation furnace includes a furnace chamber, a mesh partition, a quartz tube, and an electric heater. The electric heater is installed at the bottom of the furnace chamber, and the mesh partition is located in the middle. The furnace chamber is wrapped with an insulation structure on the outside, and the insulation structure on the top surface has several mounting holes for assembling the quartz tube. The bottom of the quartz tube is spherical and abuts against one of the mesh holes of the mesh partition.

[0011] Furthermore, the mesh on the mesh partition includes a plurality of first mesh holes and a plurality of second mesh holes, wherein each assembly hole is coaxial with the center of a first mesh hole.

[0012] Furthermore, the diameter of the first mesh is larger than the diameter of the second mesh.

[0013] Furthermore, the electric heater is located below the mesh partition.

[0014] Furthermore, the insulation structure is insulation cotton or insulation brick.

[0015] Furthermore, the furnace chamber adopts a rectangular frame structure, and insulation structures are arranged on the six sides of the rectangular frame.

[0016] Furthermore, the outer side of the furnace chamber is also provided with a protective shell, which encloses the furnace chamber inside and is fixedly connected to the furnace chamber as an integral structure. The top surface of the protective shell is provided with mounting holes corresponding to the positions of the assembly holes.

[0017] Furthermore, it also includes a guide sleeve, the upper part of which is provided with an outward flange, which is fitted into the mounting hole and abuts against the upper side of the protective shell.

[0018] Furthermore, the guide sleeve and the protective shell are welded and fixed together.

[0019] Furthermore, the bottom of the protective shell is also equipped with multiple pulleys.

[0020] The advantages of this utility model compared with the prior art include: using a mesh partition and assembly holes to limit the quartz tube, the structure is simple, and the matching design of the mesh and the bottom spherical surface of the quartz tube can adapt to quartz tubes of different sizes, making it widely applicable. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention.

[0022] Figure 2 This is a partial structural diagram of this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0024] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0025] like Figure 1-2 The anhydrous aluminum trichloride sublimation furnace shown includes a furnace chamber 1, a mesh partition 2, a quartz tube 5, and an electric heater 4. The furnace chamber 1 has an outer insulation structure 11, which encloses the furnace chamber 1 into a relatively sealed space. The electric heater 4 is installed at the bottom of the furnace chamber 1, and the mesh partition 2 is located in the middle. The insulation structure 11 on the top surface has several mounting holes for assembling the quartz tube 5. The quartz tube 5 is used to hold the cleaned aluminum trichloride. The bottom of the quartz tube 5 is spherical and abuts against one of the mesh holes of the mesh partition 2, so that the bottom of the quartz tube 5 is locked in the mesh hole, thus limiting the bottom of the quartz tube 5. Simultaneously, the mounting holes limit the upper part of the quartz tube 5, allowing the quartz tube 5 to be installed and positioned vertically in the furnace chamber 1 for heating. The spherical bottom of the quartz tube 5 allows for the adaptation of quartz tubes of different sizes to fit the mesh holes, achieving a good limiting effect.

[0026] Preferably, the mesh on the mesh partition 2 includes a plurality of first mesh holes 22 and a plurality of second mesh holes 21, wherein each mounting hole is coaxial with the center of a first mesh hole 22. Optionally, the diameter of the first mesh hole 22 is larger than the diameter of the second mesh hole 21. The electric heater 4 is located below the mesh partition 2. When the electric heater 4 is working, it transfers heat to the quartz tube 5 through the first mesh holes 22 and the second mesh holes 21, causing the temperature of the aluminum trichloride inside the quartz tube 5 to gradually rise, thus achieving sublimation.

[0027] Combination Figure 2 In optional embodiments, the insulation structure 11 can be insulation cotton or insulation bricks to reduce heat loss and save energy costs. For example, in this embodiment, the furnace 1 adopts a rectangular frame structure, and insulation cotton is arranged on the six sides of the rectangular frame. The rectangular arrangement of the furnace 1 can accommodate more quartz tubes 5 at the same time, improving the working efficiency of sublimation of aluminum trichloride.

[0028] The furnace chamber 1 is further provided with a protective shell 3 on its outer side. The protective shell 3 encloses the furnace chamber 1 and is fixedly connected to the furnace chamber 1 as an integral structure. The top surface of the protective shell 3 has mounting holes corresponding to the positions of the assembly holes, so that after the quartz tube 5 is assembled, its top extends above the protective shell 3. Preferably, a guide sleeve 6 is also included. The upper part of the guide sleeve 6 has an outward flange, which is fitted into the mounting hole, and the flange abuts against the upper side of the protective shell 3 to prevent the guide sleeve 6 from falling off. Optionally, the guide sleeve 6 and the protective shell 3 are welded together. By setting the protective shell 3, heat is further isolated, which can not only enhance the heat preservation effect, but also prevent operators from accidentally touching the furnace chamber 1 and being burned, and at the same time prevent the furnace chamber 1 from catching fire due to contact with flammable materials.

[0029] In a preferred embodiment, the bottom of the protective shell 3 is also provided with multiple pulleys 7 to facilitate the movement of the furnace chamber 1. For example, when the quartz tube 5 containing aluminum trichloride is loaded into the furnace chamber 1 for heating, the sublimation furnace is moved to the charging area by the pulleys 7. After loading is completed, the sublimation furnace is moved to the sublimation chamber. After sublimation is completed, the aluminum trichloride is cooled and then the sublimation furnace is pushed to the synthesis area to unload the aluminum trichloride in the quartz tube 5.

[0030] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0031] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. Anhydrous aluminum trichloride sublimation furnace, characterized in that: The furnace includes a furnace chamber, a mesh partition, a quartz tube, and an electric heater. The electric heater is installed at the bottom of the furnace chamber, and the mesh partition is located in the middle. The top surface of the furnace chamber has several mounting holes for assembling the quartz tube. The bottom of the quartz tube is spherical and abuts against one of the mesh holes of the mesh partition.

2. The anhydrous aluminum trichloride sublimation furnace as described in claim 1, characterized in that: The mesh on the mesh partition includes a plurality of first mesh holes and a plurality of second mesh holes, wherein each assembly hole is coaxial with the center of a first mesh hole.

3. The anhydrous aluminum trichloride sublimation furnace as described in claim 2, characterized in that: The diameter of the first mesh is larger than the diameter of the second mesh.

4. The anhydrous aluminum trichloride sublimation furnace as described in claim 1, characterized in that: The electric heater is located below the mesh partition.

5. The anhydrous aluminum trichloride sublimation furnace as described in claim 1, characterized in that: The furnace chamber is wrapped with an insulation structure, which is insulation cotton or insulation bricks.

6. The anhydrous aluminum trichloride sublimation furnace as described in claim 1, characterized in that: The furnace chamber adopts a rectangular frame structure, and insulation structures are arranged on the six sides of the rectangular frame.

7. The anhydrous aluminum trichloride sublimation furnace as described in claim 6, characterized in that: The furnace chamber is also provided with a protective shell, which encloses the furnace chamber and is fixedly connected to the furnace chamber as an integral structure. The top surface of the protective shell is provided with mounting holes corresponding to the positions of the assembly holes.

8. The anhydrous aluminum trichloride sublimation furnace as described in claim 7, characterized in that: It also includes a guide sleeve, the upper part of which is provided with an outward flange, which is fitted into the mounting hole and abuts against the upper side of the protective shell.

9. The anhydrous aluminum trichloride sublimation furnace as described in claim 8, characterized in that: The guide sleeve and the protective shell are welded and fixed together.

10. The anhydrous aluminum trichloride sublimation furnace as described in claim 7, characterized in that: The bottom of the protective shell is also equipped with multiple pulleys.

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