Graphitization fixed crucible furnace and loading and unloading device

Abstract

The invention discloses a graphitization fixed crucible furnace and a loading and unloading device. The graphitization fixed crucible furnace comprises the graphitization fixed crucible furnace and the loading and unloading device. The graphitization fixed crucible furnace is arranged in the graphitization furnace base and comprises a stand column, a box plate and a cover plate. The multiple sets of box plates are arranged in an array mode in the vertical direction, the multiple pairs of cover plates are arranged in a rectangular array mode, and every two paired cover plates are oppositely arranged and located in an area defined by the four stand columns serving as the four corners and the four box plates serving as the four edges. The loading and unloading device is used for loading and unloading a box plate and a cover plate of the graphitization fixed crucible furnace and comprises a cover plate transfer unit and a box plate transfer unit. The cover plate transfer unit is arranged on a platform of the graphitization furnace base, a second linear mechanism is vertically arranged at the sliding end of the first linear mechanism, and a vacuum suction crane is arranged at the output end of the second linear mechanism. The boxboard transfer unit is arranged above the furnace, a clamping plate is arranged at the output end of the fourth linear mechanism, and an L-shaped supporting plate is arranged at the output end of the fifth linear mechanism. During graphitization, the charging amount can be increased, energy consumption can be reduced, and loading and unloading are convenient.

Description

Technical Field

[0001] This invention relates to the technical field of graphitization process of negative electrode materials, and in particular to a graphitization fixed crucible furnace and loading / unloading device. Background Technology

[0002] During the production of anode materials, graphitization is required. In large-scale production, the graphitization process typically involves placing the material in a pit within the graphitization furnace base. Specifically, the material is placed in multiple cylindrical, covered crucibles, creating ample space between them. A common practice is to fill this space with insulating sand to better transfer heat and prevent heat loss. While graphitization workshops are generally equipped with overhead cranes, existing cranes are primarily used to remove the insulating sand, not the graphitized material itself. In current technology, before graphitization, the material is manually loaded into the crucibles from the outside, covered, and then a crane sequentially lifts each crucible into the pit. After the insulating sand is laid, graphitization begins. Once graphitization is complete, the insulating sand is removed, the entire crucible is lifted out, the lid is removed, and the material is poured out.

[0003] The main drawbacks of current graphitization processes are: low space utilization during graphitization, small furnace loading capacity, and numerous steps requiring manual control. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a graphitization fixed crucible furnace and a loading and unloading device, which can increase the furnace loading capacity and reduce energy consumption during graphitization, and the loading and unloading operation is more convenient.

[0005] In order to achieve the objectives of this invention, the following technologies are proposed: A graphitization fixed crucible furnace, disposed within a graphitization furnace base, includes: Multiple columns arranged in a rectangular array; Multiple sets of box panels are arranged in a vertical array. Each set includes multiple box panels at the same height, arranged between two adjacent columns along the length and width of the graphitization furnace base. Multiple pairs of cover plates are arranged in a rectangular array, with the two cover plates in a pair facing each other and located in an area enclosed by four columns at the four corners and four box panels on the four sides.

[0006] Furthermore, the four columns located at the four corners of a rectangle each have vertical slots on two sides, and the columns located on the four sides of the rectangle other than the four corners each have vertical slots on three sides. The other columns each have vertical slots on all four sides, and each box panel is assembled between the vertical slots of two columns.

[0007] A loading and unloading device for loading and unloading the box plates and cover plates of the above-mentioned graphitization fixed crucible furnace, comprising: The cover plate transfer unit is located on the platform of the graphitization furnace base. It includes a trolley that moves along the length of the graphitization furnace base. The upper end of the trolley is provided with a storage frame and a base. A first linear mechanism with a sliding direction parallel to the width direction of the graphitization furnace base is provided on one side above the base. A second linear mechanism is vertically provided at its sliding end. A vacuum suction lifter is provided at the output end of the second linear mechanism. The box plate transfer unit is located above the graphitization fixed crucible furnace and includes several lifting rings. A rotary motor is vertically installed below the lifting rings. A pair of third linear mechanisms are provided at the output end of the motor. A horizontal fourth linear mechanism is provided at the output end of the third linear mechanism. The output directions of the two fourth linear mechanisms are arranged opposite to each other. A clamping plate is provided at the output end of the fourth linear mechanism. A fifth linear mechanism is provided at the lower end of each of the two vertical parts of the n-shaped frame. An L-shaped support plate is provided at the output end of the fifth linear mechanism.

[0008] Furthermore, a C-shaped block is provided on the upper surface of the trolley. The end faces of the two parallel sides of the C-shaped block are located on the same vertical plane as the side of the C-shaped block facing the graphitization fixed crucible furnace. The storage frame is located between the three inner sides of the C-shaped block.

[0009] The beneficial effects of this technical solution are as follows: 1. When using this graphitization fixed crucible furnace for graphitization, only a small amount of insulating sand needs to be added between the overall perimeter and the inner wall of the graphitization furnace base. The spaces for loading materials are directly separated by box plates, and a cover plate is placed directly on top of the materials. Compared with the existing technology, the furnace loading capacity can be greatly increased, and the furnace heating power does not need to be increased. Due to the increase in materials, the unit energy consumption is reduced.

[0010] 2. In actual work, the cover plate needs to be assembled and disassembled more frequently than the box plate. Therefore, the cover plate transfer unit of the loading and unloading device can easily lift and transfer the cover plate. When the cover plate is not used on the furnace, it can be temporarily stored in batches in the storage frame. The storage frame can push in and push out C-shaped blocks, which facilitates the inspection and replacement of the cover plate.

[0011] 3. When the box plate needs to be inspected after a long period of work, or when a small amount of material that the suction crane failed to pick up needs to be cleaned up, the box plate can be taken out through the box plate transfer unit. First, the box plate is lifted a short distance by the clamping plate, and then the box plate is lifted from the bottom by the L-shaped pallet before being transferred. It has good stability and is not easy to slip. Attached Figure Description

[0012] Figure 1 A perspective view of a graphitization stationary crucible furnace according to an embodiment of this application is shown.

[0013] Figure 2An embodiment of this application is shown. Figure 1 Enlarged view of part A.

[0014] Figure 3 This paper shows an overall perspective view of the graphitization furnace base, the graphitization fixed crucible furnace, and the loading and unloading device in operation according to an embodiment of this application.

[0015] Figure 4 An embodiment of this application is shown. Figure 2 Enlarged view of part B.

[0016] Figure 5 An embodiment of this application is shown. Figure 2 Enlarged view of part C.

[0017] Figure 6 A perspective view of the cover plate transfer unit according to an embodiment of this application is shown.

[0018] Figure 7 A perspective view of the box plate transfer unit according to an embodiment of this application is shown. Detailed Implementation

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-5 As shown, a graphitization fixed crucible furnace is installed in the graphitization furnace base 5 and includes a bottom heat-conducting plate 1, a column 2, a box plate 3, and a cover plate 4.

[0021] The bottom heat-conducting plate 1 is fixed to the inner bottom wall of the graphitization furnace base 5.

[0022] There are multiple columns 2 arranged in a rectangular array and fixed on the bottom heat-conducting plate 1. The four columns 2 located at the four corners of the rectangle have vertical grooves on two sides. The columns 2 located on the four sides of the rectangle other than the four corners have vertical grooves on three sides. The other columns 2 in the middle have vertical grooves on all four sides.

[0023] The number of box plates 3 is multiple sets. Specifically, they are arranged one set after another from bottom to top. Each set includes multiple box plates 3 located at the same height along the length and width of the graphitization furnace base 5 between two adjacent columns 2. The box plates 3 are assembled between the vertical slots of the two columns 2.

[0024] There are multiple pairs of cover plates 4. Each pair of cover plates 4 is considered as a whole, and the wholes are arranged in a rectangular array. The two cover plates 4 in a pair are arranged opposite each other and are located in the area enclosed by four columns 2 as the four corners and four box plates 3 as the four sides. The two corners of the cover plate 4 are respectively provided with square openings that slide vertically and are engaged with the intersection of the two sides of the column 2. Specifically, the edge of the cover plate 4 has a space of 5mm to 15mm between it and the box plate 3, column 2 or the other cover plate 4 in the pair during assembly, which is reserved to prevent the plates from jamming when heated and expanded.

[0025] like Figures 3-7 As shown, a loading and unloading device is used for loading and unloading the box plate 3 and cover plate 4 of the graphitization fixed crucible furnace, including a cover plate transfer unit 6 and a box plate transfer unit 7.

[0026] The cover plate transfer unit 6 is located on the platform of the graphitization furnace base 5, and includes a trolley 61 that moves along the length of the graphitization furnace base 5. A C-shaped block 62 is provided on the upper surface of the trolley 61. The end faces of the two parallel sides of the C-shaped block 62 are on the same vertical plane as the side of the C-shaped block 62 facing the graphitization fixed crucible furnace. A storage frame 63 is provided between the three inner sides of the C-shaped block 62 for temporarily storing the cover plate 4. A base 64 is also provided on the upper surface of the trolley 61. A horizontal plate 65 is provided on the upper end of the base 64. The lower end face of the 5 is provided with a pair of hangers 651, both located on one side of the base 64. One end of the horizontal plate is provided with a counterweight 66 extending downward and located on the other side of the base 64. The lower end of the hanger 651 is provided with a first linear mechanism 67 whose sliding direction is parallel to the width direction of the graphitization furnace base 5. The sliding end of the first linear mechanism 67 is provided with a second linear mechanism 68 vertically. The output end of the second linear mechanism 68 is provided with a vacuum suction lifter 69. The suction cup 691 of the vacuum suction lifter 69 is used to contact the cover plate 4, so that the cover plate 4 is lifted.

[0027] The box plate transfer unit 7 is located above the graphitization fixed crucible furnace and includes a top plate 71. Several lifting rings 711 are fixed on the upper surface of the top plate 71 for the overhead crane in the graphitization workshop to lift and move the box plate transfer unit 7. A rotary motor 72 is vertically installed at the lower end of the top plate 71, and a rotating plate 721 is installed at its output end. A pair of n-shaped frames 73 are installed at the lower end of the rotating plate 721. A third linear mechanism 74 is vertically installed at the lower end of the horizontal part of the n-shaped frame 73. A fourth linear mechanism 75 is horizontally installed at the output end of the third linear mechanism 74. The output directions of the two fourth linear mechanisms 75 are opposite to each other. A clamping plate 76 is installed at the output end of the fourth linear mechanism 75 for abutting against the box plate 3 during operation. A fifth linear mechanism 77 is installed at the lower end of each of the two vertical parts of the n-shaped frame 73. An L-shaped support plate 78 is installed at the output end of the fifth linear mechanism 77 for contacting the bottom end of the box plate 3 during operation.

[0028] In this embodiment, the first linear mechanism 67 adopts a linear electric guide rail, and the second linear mechanism 68, the third linear mechanism 74, the fourth linear mechanism 75, and the fifth linear mechanism 77 all adopt linear hydraulic cylinders.

[0029] Work style: The following explanation uses the disassembly of box panel 3 and cover plate 4 as an example; the same principle applies to assembly.

[0030] After one round of graphitization is completed, proceed in the following general order: disassemble each cover plate 4, remove the material, and disassemble each box plate 3 (if necessary). The specific steps are as follows: like Figure 3 As shown, the above process is carried out from the lower right of the graphitization fixed crucible furnace in the figure to the upper left. First, after graphitization, the material will settle a certain distance, so the cover plate 4 will drop a certain distance. The position of the vacuum suction machine 69 is moved by the trolley 61 and the first linear mechanism 67. Then the vacuum suction machine 69 is started, and the second linear mechanism 68 lowers the vacuum suction machine 69 to lift the cover plate 4 and then put it into the storage frame 63.

[0031] The cover plate transfer unit 6 and the box plate transfer unit 7 are spaced a certain distance apart, so that the suction crane can pick up the material while the two are working.

[0032] The operation of the box plate transfer unit 7 is as follows: First, the fourth linear mechanisms 75 are lowered through the third linear mechanism 74. Then, the clamping plate 76 is clamped by the fourth linear mechanism 75. Then, the cover plate 4 is lifted by the third linear mechanism 74. When the bottom of the cover plate 4 exceeds the inner horizontal plane of the L-shaped support plate 78, the L-shaped support plate 78 is pushed out by the fifth linear mechanism 77. Every two corresponding L-shaped support plates 78 form a U-shaped structure to support the cover plate 4 from the bottom. The obtained cover plate 4 can be temporarily placed on the platform of the graphitization furnace base 5.

[0033] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A graphitization fixed crucible furnace, characterized in that, Located within the graphitization furnace base (5), it includes: Multiple columns arranged in a rectangular array (2); Multiple sets of box plates (3) are arranged in a vertical array. Each set includes multiple box plates (3) arranged at the same height between two adjacent columns (2) along the length and width of the graphitization furnace base (5). Multiple pairs of cover plates (4) are arranged in a rectangular array. The two pairs of cover plates (4) are arranged opposite each other and located in the area enclosed by four columns (2) at the four corners and four box plates (3) on the four sides.

2. The graphitization fixed crucible furnace according to claim 1, characterized in that, It also includes a bottom heat-conducting plate (1) fixed to the inner bottom wall of the graphitization furnace base (5), and each column (2) is fixed on the bottom heat-conducting plate (1).

3. The graphitization fixed crucible furnace according to claim 1, characterized in that, The four columns (2) located at the four corners of a rectangle have vertical slots on two sides respectively. The columns (2) located on the four sides of the rectangle other than the four corners have vertical slots on three sides respectively. The other columns (2) have vertical slots on all four sides respectively. Each box plate (3) is assembled between the vertical slots of two columns (2).

4. The graphitization fixed crucible furnace according to claim 1, characterized in that, The cover plate (4) has square openings at the two corners of the intersection of the two sides of the column (2) that slide vertically.

5. The graphitization fixed crucible furnace according to claim 1, characterized in that, The edge of the cover plate (4) has a space of 5mm to 15mm between it and the box plate (3) or the column (2) or another cover plate (4) in a pair during assembly.

6. A loading and unloading device, characterized in that, The box plate (3) and cover plate (4) for loading and unloading the graphitization fixed crucible furnace according to any one of claims 1 to 5 include: The cover plate transfer unit (6) is located on the platform of the graphitization furnace base (5) and includes a trolley (61) that moves along the length of the graphitization furnace base (5). The upper end of the trolley (61) is provided with a storage frame (63) and a base (64). A first linear mechanism (67) with a sliding direction parallel to the width direction of the graphitization furnace base (5) is provided on one side above the base (64). A second linear mechanism (68) is vertically provided at its sliding end. A vacuum suction lifter (69) is provided at the output end of the second linear mechanism (68). The box plate transfer unit (7) is located above the graphitization fixed crucible furnace and includes several lifting rings (711). A rotary motor (72) is vertically installed below the lifting rings (711). A pair of third linear mechanisms (74) are provided at the output end of the motor. A horizontal fourth linear mechanism (75) is provided at the output end of the third linear mechanism (74). The output directions of the two fourth linear mechanisms (75) are opposite to each other. A clamping plate (76) is provided at the output end of the fourth linear mechanism (75). A fifth linear mechanism (77) is provided at the lower end of the two vertical parts of the n-shaped frame (73). An L-shaped support plate (78) is provided at the output end of the fifth linear mechanism (77).

7. The loading and unloading device according to claim 6, characterized in that, The upper surface of the trolley (61) is provided with a C-shaped block (62). The end faces of the two parallel sides of the C-shaped block (62) are on the same vertical plane as the side of the C-shaped block (62) facing the graphitization fixed crucible furnace. The storage frame (63) is located between the three inner sides of the C-shaped block (62).

8. The loading and unloading device according to claim 6, characterized in that, The upper end of the base (64) is provided with a horizontal plate (65), and the lower end of the horizontal plate (65) is provided with a pair of hangers (651) located on one side of the base (64). The first linear mechanism (67) is located at the lower end of the hangers (651).

9. The loading and unloading device according to claim 6, characterized in that, The output end of the rotary motor (72) is provided with a rotating plate (721), and a pair of n-shaped frames (73) are provided at the lower end of the rotating plate (721). Each third linear mechanism (74) is located at the lower end of the horizontal part of the n-shaped frame (73).

Images