Coating furnace for hard carbon material

Abstract

The utility model discloses a cladding furnace for hard carbon materials, which comprises a furnace body, the top surface of the furnace body is fixedly connected with two lifting lugs which are in mirror symmetry, a plurality of supporting blocks which are distributed at equal intervals are radially fixed outside the furnace body, the bottom surface of each supporting block is telescopically connected with a supporting leg, the supporting legs are movably connected with the furnace body, and the furnace body is fixedly connected with the furnace body. The inner sides of the supporting legs are connected with rolling wheels in a lifting mode. The inner side of each supporting leg is connected with the corresponding U-shaped block in a lifting mode, the rolling wheels are arranged in the U-shaped blocks, and therefore the furnace body can be conveniently moved, the furnace body does not need to be moved by means of hoisting equipment, the convenience of the furnace body in the moving process is improved, and the service life of the furnace body is prolonged. And meanwhile, the supporting legs are telescopically connected into the blind holes in the bottom surfaces of the supporting blocks through the springs and the guide columns, so that vibration generated when the furnace body falls down is buffered and absorbed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a coating furnace for hard carbon materials. Background Art

[0002] Hard carbon is a type of amorphous carbon that is difficult to graphitize at a high temperature of 2800°C. Microscopically, it exhibits a "short-range order, long-range disorder" structure. Compared to graphite, its interlayer spacing is larger, making it easier for specific metal cations to embed. Hard carbon is widely used in sodium-ion battery negative electrode materials and has excellent fast charge and discharge performance. At present, hard carbon materials are mainly prepared from biomass materials and high molecular polymers. Due to the characteristics of the raw materials themselves, many micropores will be formed on the surface of the hard carbon material during the high-temperature calcination process, resulting in a significant increase in its specific surface area, thereby affecting the first coulombic efficiency of the material in the battery system.

[0003] Surface coating of hard carbon materials can solve the problem of biomass-based hard carbon materials having many micropores and large specific surface area. Surface coating of hard carbon materials using vapor deposition has the advantages of uniform coating. Traditional surface coating of hard carbon materials using vapor deposition usually involves mixing hard carbon materials with a carbon-containing gas source in a coating furnace, using a high-temperature environment to pyrolyze the carbon-containing gas source and coat the carbon on the surface of the hard carbon material to obtain a surface-coated modified hard carbon material. However, due to the relatively large size of the current coating furnace and the lack of a movable structure at the bottom, moving the coating furnace requires the use of lifting equipment, which is quite troublesome. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a coating furnace for hard carbon materials.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a coating furnace for hard carbon materials, comprising a furnace body, the top surface of the furnace body is fixedly connected to two mirror-symmetrical lifting ears, a plurality of equidistantly distributed support blocks are radially fixed to the outside of the furnace body, the bottom surface of each support block is telescopically connected to a support leg, the support leg is movably connected to the furnace body, and the inner side of the support leg is lifted and lowered and connected to a roller.

[0006] As a further description of the above technical solution: a triangular block is fixed to the top surface of each supporting leg, and each triangular block is fixed to the outer wall of the furnace body.

[0007] As a further description of the above technical solution: a lifting motor is vertically fixed on the inner side of each supporting leg, the output end of each lifting motor is transmission-connected to a guide rod, and a U-shaped block is fixed to the end of each guide rod, the U-shaped block is movably connected to the inner side of the supporting leg, and the roller is rotatably connected inside the U-shaped block.

[0008] As a further description of the above technical solution: a third sliding groove is vertically opened on the inner side of the supporting leg, a third sliding block is slidably connected in the third sliding groove, and the third sliding block is fixedly connected to the U-shaped block.

[0009] As a further description of the above technical solution: a plurality of equally spaced blind holes are vertically opened on the bottom surface of the support block, a spring is vertically fixed in each blind hole, the end of the spring is fixedly connected to a guide column, the guide column is axially slidably connected in the blind hole, and is vertically fixed to the top surface of the support leg.

[0010] As a further description of the above technical solution: two mirror-symmetrical first sliding grooves are axially opened on the inner wall of the blind hole, a first slider is slidably connected in each of the first sliding grooves, a guide column is commonly fixed between every two of the first sliders, a second sliding groove is axially opened on the outer wall of the furnace body, a second slider is slidably connected in the second sliding groove, and the second slider is fixedly connected to the support leg.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, the coating furnace for hard carbon materials has a U-shaped block connected to the inner side of each supporting leg by a lifting mechanism, and rollers are set in the U-shaped block, so as to facilitate the movement of the furnace body without the help of lifting equipment, thereby improving the convenience of moving the furnace body. At the same time, the supporting legs are telescopically connected to the blind holes on the bottom surface of the supporting blocks through springs and guide columns, which has the effect of buffering and absorbing the vibration of the furnace body when it falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of a coating furnace for hard carbon materials proposed in the present invention;

[0014] Figure 2 This is a cross-sectional view of the connection between the furnace body and the support legs of a coating furnace for hard carbon materials proposed in the present invention;

[0015] Figure 3 The utility model proposes a coating furnace for hard carbon materials Figure 2 A magnified view of the structure at point A;

[0016] Figure 4The utility model proposes a coating furnace for hard carbon materials Figure 2 A magnified view of the structure at B in the middle;

[0017] Figure 5 The utility model proposes a coating furnace for hard carbon materials Figure 2 Enlarged view of the structure at point C in the middle.

[0018] Legend:

[0019] 1. Furnace body; 2. U-shaped block; 3. Support leg; 4. Guide column; 5. Support block; 6. Triangular block; 7. Lifting lug; 8. Lifting motor; 9. Guide rod; 10. Roller; 11. Blind hole; 12. First slider; 13. First chute; 14. Spring; 15. Second slider; 16. Second chute; 17. Third chute; 18. Third slider. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figures 1 to 5 The utility model provides a coating furnace for hard carbon materials: it includes a furnace body 1, the top surface of the furnace body 1 is fixedly connected to two mirror-symmetrical lifting ears 7, a plurality of equidistantly distributed support blocks 5 are radially fixed on the outside of the furnace body 1, the top surface of each support leg 3 is fixed with a triangular block 6, and each triangular block 6 is fixed to the outer wall of the furnace body 1. The bottom surface of each support block 5 is telescopically connected to a support leg 3, and the support leg 3 is movably connected to the furnace body 1. The inner side of the support leg 3 is lifted and connected to a roller 10, and a lifting motor 8 is vertically fixed on the inner side of each support leg 3. The output end of each lifting motor 8 is transmission-connected to a guide rod 9, and a U-shaped block 2 is fixed at the end of each guide rod 9. The U-shaped block 2 is movably connected to the inner side of the support leg 3, and the roller 10 is rotatably connected to the U-shaped block 2. A third slide groove 17 is vertically provided on the inner side of the support leg 3, and a third slider 18 is slidably connected in the third slide groove 17, and the third slider 18 is fixedly connected to the U-shaped block 2;

[0022] In order to cushion and absorb the vibration generated by the furnace body 1 when it falls, a plurality of equally spaced blind holes 11 are vertically opened on the bottom surface of the support block 5, and a spring 14 is vertically fixed in each blind hole 11. The end of the spring 14 is fixedly connected to the guide column 4, and the guide column 4 is axially slidably connected in the blind hole 11 and vertically fixed on the top surface of the support leg 3. Two mirror-symmetrical first sliding grooves 13 are axially opened on the inner wall of the blind hole 11, and a first slider 12 is slidably connected in each first sliding groove 13. A guide column 4 is fixed between every two first sliders 12. A second sliding groove 16 is axially opened on the outer wall of the furnace body 1, and a second slider 15 is slidably connected in the second sliding groove 16. The second slider 15 is fixedly connected to the support leg 3.

[0023] By lifting and connecting a U-shaped block 2 on the inner side of each supporting leg 3, and arranging a roller 10 in the U-shaped block 2, it is convenient to move the furnace body 1 without the help of lifting equipment, thereby improving the convenience of moving the furnace body 1. At the same time, the supporting leg 3 is telescopically connected to the blind hole 11 on the bottom surface of the supporting block 5 through the spring 14 and the guide column 4, which has the effect of buffering and absorbing the vibration of the furnace body 1 when it falls.

[0024] Working principle: When in use, the lifting motor 8 drives the U-shaped block 2 to descend, so that the roller 10 contacts the ground, and the support leg 3 is suspended in the air, and then the furnace body 1 is driven to move by the roller 10. When the furnace body 1 moves to the desired position, the lifting motor 8 retracts the roller 10 upwards, so that the suspended support leg 3 descends, so that the support leg 3 contacts the ground.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coating furnace for hard carbon materials, comprising a furnace body (1), characterized in that: The top surface of the furnace body (1) is fixedly connected to two mirror-symmetrical lifting ears (7), and a plurality of equidistantly distributed support blocks (5) are radially fixed to the outside of the furnace body (1). The bottom surface of each support block (5) is telescopically connected to a support leg (3), and the support leg (3) is movably connected to the furnace body (1). The inner side of the support leg (3) is connected to a roller (10) for lifting.

2. A coating furnace for hard carbon materials according to claim 1, characterized in that: A triangular block (6) is fixed to the top surface of each supporting leg (3), and each triangular block (6) is fixed to the outer wall of the furnace body (1).

3. The coating furnace for hard carbon materials according to claim 1, characterized in that: A lifting motor (8) is vertically fixed on the inner side of each supporting leg (3), the output end of each lifting motor (8) is transmission-connected to a guide rod (9), and a U-shaped block (2) is fixed to the end of each guide rod (9), the U-shaped block (2) is movably connected to the inner side of the supporting leg (3), and the roller (10) is rotatably connected inside the U-shaped block (2).

4. A coating furnace for hard carbon materials according to claim 3, characterized in that: A third sliding groove (17) is vertically provided on the inner side of the supporting leg (3), a third sliding block (18) is slidably connected in the third sliding groove (17), and the third sliding block (18) is fixedly connected to the U-shaped block (2).

5. The coating furnace for hard carbon materials according to claim 1, characterized in that: The bottom surface of the support block (5) is vertically provided with a plurality of equally spaced blind holes (11), a spring (14) is vertically fixed in each of the blind holes (11), the ends of the springs (14) are fixedly connected to the guide pillars (4), the guide pillars (4) are axially slidably connected in the blind holes (11), and are vertically fixed to the top surface of the support legs (3).

6. The coating furnace for hard carbon materials according to claim 5, characterized in that: Two mirror-symmetrical first chute grooves (13) are axially formed on the inner wall of the blind hole (11), a first slider (12) is slidably connected in each of the first chute grooves (13), and a guide column (4) is fixed between each two of the first sliders (12). A second chute groove (16) is axially formed on the outer wall of the furnace body (1), a second slider (15) is slidably connected in the second chute groove (16), and the second slider (15) is fixedly connected to the support leg (3).

Images