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CN-224202189-U - Sagger high-temperature roasting graphitization furnace

CN224202189UCN 224202189 UCN224202189 UCN 224202189UCN-224202189-U

Abstract

The utility model belongs to the technical field of graphitizing furnaces, and particularly relates to a sagger high-temperature roasting graphitizing furnace which comprises a graphitizing furnace and a hanging bracket, wherein the center of the hanging bracket is an upper through hole and a lower through hole, a main body is arranged in an upper-lower layered mode of a tray, draw hooks are circumferentially distributed below the tray, an outer heating electrode of an outer ring and an inner heating electrode of an inner ring are arranged in the graphitizing furnace, adjacent inner heating electrodes of the inner ring are circumferentially and uniformly distributed, and the inner heating electrodes penetrate through holes of the hanging bracket. The utility model can form an internal and external linkage heating mode during roasting operation, so that multiple faces of the sagger are uniformly heated to avoid the temperature gradient problem of the traditional outer ring heating mode, and meanwhile, the heating element is automatically cleaned during feeding and discharging to remove sediment formed on the surface due to material volatile matters, atmosphere residues and self-reaction of the electrode.

Inventors

  • CHEN SHENGDONG
  • LU RUIBING

Assignees

  • 河南科瑞斯博新材料有限责任公司

Dates

Publication Date
20260505
Application Date
20250609

Claims (7)

  1. 1. The sagger high-temperature roasting graphitization furnace is characterized by comprising a graphitization furnace (1) and a hanger (2); The center of the hanging bracket (2) is provided with an upper through hole and a lower through hole, the main body is provided with a tray (21) in an up-down layered manner, and draw hooks (22) are circumferentially distributed below the tray (21); An outer heating electrode (31) of an outer ring and an inner heating electrode (32) of an inner ring are arranged in the graphitizing furnace (1), the adjacent inner heating electrodes (32) of the inner ring are uniformly distributed in the circumferential direction and penetrate through holes of the hanging frame (2); The bottom of the graphitizing furnace (1) is provided with a base (41), an eccentric guide slope (43) is arranged in the graphitizing furnace, a coaxial cleaning frame (51) is movably arranged above the base (41), a coating cylinder (52) is fixedly arranged on the inner side and the outer side of the cleaning frame (51) and sleeved on the outer sides of an inner heating electrode (32) and an outer heating electrode (31), and scraping blades (53) are fixed at the upper end and the lower end of the coating cylinder (52); the drag hook (22) moves downwards to the lower part of the cleaning frame (51) to form clamping connection.
  2. 2. The sagger high temperature roasting graphitization furnace according to claim 1, wherein the center area of the graphitization furnace (1) is circumferentially provided with supporting rods (321), and the upper end of the supporting rods is connected with a plate body for fixing the upper end of the inner heating electrode (32).
  3. 3. The sagger high temperature roasting graphitization furnace as claimed in claim 1, wherein the lower end of the guide slope (43) is provided with a positioning hole (45) with a lower opening, and the positioning hole is coaxial with a limiting hole (44) near the right side at the bottom of the graphitization furnace (1).
  4. 4. A sagger high temperature roasting graphitization furnace as claimed in claim 3, characterized in that the inner part of the limiting hole (44) is provided with a collecting pipe (42), and the upper end is propped against the joint end surface of the limiting hole (44) and the positioning hole (45).
  5. 5. The sagger high temperature roasting graphitization furnace as claimed in claim 1, wherein the cleaning frame (51) is composed of an outer ring frame (511) of an inner ring and an inner ring frame (512) of an outer ring, which are fixedly connected through a connecting rod.
  6. 6. The sagger high temperature roasting graphitization furnace as claimed in claim 5, wherein the coating cylinders (52) are distributed on the inner side of the outer ring frame (511) and the outer side of the inner ring frame (512).
  7. 7. The sagger high temperature roasting graphitization furnace as claimed in claim 6, wherein the inner side of the lower end of the draw hook (22) is protruded with a clamping block (23) which is provided with an upper bevel edge and a lower bevel edge, and the junction of the two bevel edges is adjacent to the inner edge of the inner ring frame (512).

Description

Sagger high-temperature roasting graphitization furnace Technical Field The utility model belongs to the technical field of graphitization furnaces, and particularly relates to a sagger high-temperature roasting graphitization furnace. Background Graphitization furnaces are industrial furnaces that are specially used for high temperature graphitization of carbon materials, using sagger as a container for carrying the material, and performing heat treatment under a protective atmosphere (e.g. nitrogen, argon) at high temperature (typically over 2500 ℃) to transform the amorphous carbon structure in the carbon material into a highly ordered graphite crystal structure (i.e. graphitization). At present, heating elements (such as graphite electrodes) are usually arranged in an outer ring area in the furnace, an inner ring is used for placing sagger, the heating elements are arranged externally, so that the central area in the furnace is heated unevenly, obvious temperature gradient is formed, and the stacked saggers cannot be heated evenly. In order to solve the problems, the application provides a sagger high-temperature roasting graphitization furnace. Disclosure of utility model The utility model aims to provide a sagger high-temperature roasting graphitization furnace, which solves the problems in the background technology. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a sagger high-temperature roasting graphitization furnace, which comprises a graphitization furnace and a hanger; The center of the hanger is provided with an upper through hole and a lower through hole, the main body is provided with a tray in an upper-lower layered manner, and draw hooks are circumferentially distributed below the tray; The inner heating electrodes adjacent to the inner ring are circumferentially and uniformly distributed and penetrate through holes of the hanging frame; The bottom of the graphitizing furnace is provided with a base, an eccentric guide slope is arranged in the graphitizing furnace, a coaxial cleaning frame is movably arranged above the base, a coating cylinder is fixedly arranged on the inner side and the outer side of the cleaning frame and sleeved on the outer sides of the inner heating electrode and the outer heating electrode, and scraping blades are fixed at the upper end and the lower end of the coating cylinder; The drag hook moves downwards to the lower part of the cleaning frame to form clamping connection. Preferably, support rods are circumferentially distributed in the central area of the graphitizing furnace, and the upper end of the support rods is connected with a plate body at the upper end of the fixed inner heating electrode. Preferably, the lower end of the guide slope is provided with a positioning hole with a lower opening, and the positioning hole is coaxial with a limiting hole near the right side of the bottom of the graphitizing furnace. Preferably, the collecting pipe is arranged in the limiting hole, and the upper end of the collecting pipe props against the connecting end face of the limiting hole and the positioning hole. Preferably, the cleaning rack main body is an outer ring rack of the inner ring and an inner ring rack of the outer ring, and the outer ring rack and the inner ring rack are fixedly connected through a connecting rod. Preferably, the coating cylinders are distributed on the inner side of the outer ring frame and the outer side of the inner ring frame. Preferably, a clamping block is protruded from the inner side of the lower end of the draw hook, the draw hook is provided with an upper bevel edge and a lower bevel edge, and the joint of the two bevel edges is adjacent to the inner edge of the inner ring frame. The utility model has the following beneficial effects: According to the utility model, the inner heating electrodes are circumferentially distributed in the center of the graphitizing furnace, the hanging frame is of a hollow structure, and the outer heating electrodes of the outer ring are combined, so that the sagger can be heated bidirectionally during roasting operation, different surfaces of the sagger at different positions can be heated uniformly, and the problem of temperature gradient is solved. According to the utility model, through the addition of the cleaning frame, the clamping blocks can be automatically clamped below the cleaning frame when the hanging frame descends, the scraping blades are driven to remove sediment on the outer surfaces of the external heating electrode and the internal heating electrode when the hanging frame moves out, and the clamping blocks are automatically separated when the hanging frame moves to the highest point, so that the cleaning frame descends to form secondary cleaning, the resistance increase caused by long-time sediment of sediment on the surfaces of the external heating electrode and the internal heating electrode