Internally-stringed box type graphitization furnace

Abstract

The internal serial box type graphitization furnace is characterized in that the internal serial box type graphitization furnace is composed of a box body made of graphite, partition plates, stand columns and transverse columns, the periphery of the box body is formed by splicing a plurality of first rectangular plates, and the left and right adjacent first rectangular plates are connected through the stand columns provided with insertion grooves; a bottom plate of the box body is formed by lap joint of a plurality of lap joint plates, the lap joint plates provided with the stand columns extend towards the left side and the right side and are provided with through holes matched with the stand columns in position and diameter, the cover plate is formed by splicing a plurality of second rectangular plates, through holes are formed in the stand columns, the partition plates are vertically inserted into the box body, and the partition plates are formed by vertically splicing a plurality of layers. A plurality of through holes are evenly formed in the splicing positions, and the transverse columns penetrate through the through holes in the partition plates and are horizontally arranged in the box body. The graphitization furnace is high in yield, long in service life and low in construction cost; heating is more comprehensive, and the product quality can be improved. And the whole box body is perfectly connected in series, so that the arc striking overheating condition of the current in the power transmission process is avoided, and the production safety is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery material production, and specifically relates to an inner-series box-type graphitization furnace. Background Art

[0002] With the widespread application of lithium-ion batteries in electric vehicles and energy storage, the lithium battery industry continues to develop at a high speed, and higher requirements are placed on the graphitization of negative electrode materials. The existing graphitization furnaces have a small capacity, low production efficiency, and insufficient heating of all raw materials, which cannot meet the requirements of downstream industries for negative electrode materials; and the expansion and contraction problems during the graphitization process will cause the current to not pass normally, resulting in safety issues such as furnace spraying and even explosion. How to provide greater production capacity, lower costs, more uniform performance and a safer production environment for the manufacture of negative electrode materials, and how to better adapt to the global high environmental standards are the directions for the graphitization industry to continuously adapt to industry development and continue to improve. Utility Model Content

[0003] The utility model aims to provide an inner-box graphitization furnace, which has the characteristics of large production capacity, low manufacturing cost, simpler and more efficient assembly and high safety performance.

[0004] The inner-string box-type graphitization furnace is characterized in that: it is composed of a box body, a partition plate, a column and a horizontal column made of graphite material, the box body is composed of a plurality of first rectangular plates spliced ​​around, the left and right adjacent first rectangular plates are connected by columns with slots, the slots of the columns penetrate the columns from top to bottom, the width matches the thickness of the rectangular plate, the slots of the columns at the corners of the box body are perpendicular to each other, and the slots of the columns at the remaining parts are symmetrically arranged; the bottom plate of the box body is composed of a plurality of overlapping plates, the overlapping plates with column positions extend to the left and right sides and are provided with The column positions and diameters are matched with through holes, the lap plates located at the front and rear ends are provided with fan-shaped holes and semicircular holes at the column positions, the side edges of the lap plates are stepped, and the outer sides of the lap plates located on both sides are set as straight edges; the cover plate is composed of a number of second rectangular plates spliced ​​together, and through holes are provided at the positions of the columns; the partition plate is vertically inserted into the box body, the partition plate is parallel to the end plate of the box body and is supported and erected by the left and right sides of the box body, the partition plate is composed of several layers of vertical splicing, and a number of through holes are evenly provided at the splicing points, and the cross column passes through the through holes on the partition plate and is horizontally arranged in the box body.

[0005] Furthermore, the partition plates and cross columns are arranged in three layers. During installation, the lower two layers are built first, and then filled with materials. When the material filling height reaches the highest point of the second layer, the third layer of partition plates and cross columns is built.

[0006] The beneficial effects of the utility model are as follows: first, the assembled box has a larger capacity and can produce more than 200 tons of artificial graphite per cycle, and the extended and stable heating device can have a longer service life. Secondly, the use of a large number of plates is reduced, and the consumables not required for actual production in some positions are simplified, thereby reducing costs. The partition plates are evenly distributed throughout the box, making the heating area larger and the heating more comprehensive, which can improve product quality. The various components in the box are perfectly connected in series to avoid arcing and overheating during the power transmission process, thereby enhancing production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a side view of the box of the inner-box graphitization furnace.

[0008] Figure 2 This is the front view of the box body of the inner-box graphitization furnace.

[0009] Figure 3 This is a schematic diagram of the bottom plate structure of an internal box-type graphitization furnace.

[0010] Figure 4 This is a schematic diagram of the structure of the inner-box graphitization furnace cover.

[0011] Figure 5 This is a schematic diagram of the structure of the partition plate of the inner-box graphitization furnace.

[0012] Figure 6 This is a schematic diagram of the column structure.

[0013] Figure 7 Schematic diagram of the lap plate structure.

[0014] Among them: 1-box, 2-partition plate, 3-column, 4-horizontal column, 5-first rectangular plate, 6-lap plate, 7-bottom plate, 8-cover plate, 9-second rectangular plate. DETAILED DESCRIPTION

[0015] Embodiment 1: An internally connected box-type graphitization furnace, which is composed of a box body 1, a partition plate 2, columns 3 and a horizontal column 4 made of graphite material. The box body 1 is composed of a plurality of first rectangular plates 5 spliced ​​together on all sides. The first rectangular plates 5 adjacent to each other on the left and right are connected by columns 3 with slots. The slots of the columns 3 penetrate the columns from top to bottom, and the width matches the thickness of the first rectangular plates 5. The slots of the columns 3 at the corners of the box body are perpendicular to each other, and the slots of the columns 3 at the remaining parts are symmetrically arranged; the bottom plate 7 of the box body is composed of a plurality of lap plates 6 overlapped together, and the lap plates with the positions of the columns 3 extend to the left and right sides and are provided with through holes matching the positions and diameters of the columns. The lap plates at the front and rear ends are provided with fan-shaped holes and semicircular holes at the positions of the columns 3. The sides of the lap plates 6 are stepped, and the outer sides of the lap plates at the two sides are set as straight edges; the cover plate 8 is composed of a plurality of second rectangular plates 9 spliced ​​together, and through holes are provided at the positions of the columns 3. The partition plate 2 is vertically inserted into the box body 1, the partition plate 2 is parallel to the end plate of the box body 1 and is supported and erected by the left and right sides of the box body. The partition plate 2 is provided with three layers in total, and a number of through holes are evenly opened at the joints. The cross column 4 passes through the through holes on the partition plate 2 and is horizontally arranged in the box body 1. During installation, first build the lower two layers of partition plates 2 and cross columns 4, then fill the materials to the top position of the second layer of partition plates 2, and then build the third layer of partition plates 2 and cross columns 4, and then continue to put the raw materials until 200mm below the top of the side of the box body 1, and finally use the second rectangular plate 9 to lay the cover plate 8 until the entire box is covered to form a complete cover plate 8.

Claims

1. Inner-box graphitization furnace, characterized by: The box body is composed of a graphite box body, a partition plate, a column and a horizontal column. The box body is composed of a plurality of first rectangular plates spliced ​​together. The adjacent first rectangular plates on the left and right are connected by columns with slots. The slots of the columns penetrate the columns from top to bottom. The width matches the thickness of the rectangular plate. The slots of the columns at the corners of the box body are perpendicular to each other. The slots of the columns at the rest of the boxes are symmetrically arranged. The bottom plate of the box body is composed of a plurality of overlapping plates. The overlapping plates with column positions extend to the left and right sides and are provided with the column positions and diameters. Matching through holes, the lap plates located at the front and rear ends have fan-shaped holes and semicircular holes at the column positions, the side edges of the lap plates are stepped, and the outer sides of the lap plates on both sides are set as straight edges; the cover plate is composed of a number of second rectangular plates spliced ​​together, and through holes are opened at the column positions; the partition plate is vertically inserted into the box body, the partition plate is parallel to the end plate of the box body and is supported and erected by the left and right sides of the box body, the partition plate is composed of several layers of vertical splicing, and a number of through holes are evenly opened at the splicing points, and the cross column passes through the through holes on the partition plate and is horizontally arranged in the box body.

2. The inner-box graphitization furnace according to claim 1, characterized in that The partition plates and the crossbars are arranged in three layers.

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