Vertical-type continuous graphitization furnace

A graphitization furnace, vertical technology, applied in inorganic chemistry, carbon compounds, chemical instruments and methods, etc., can solve problems such as the inability to meet the requirements of high temperature heat treatment of carbon raw materials, improve working conditions, prolong furnace life, and reduce oxidation. The effect of loss

Active Publication Date: 2014-07-02
GUIYANG AL-MG DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a vertical continuous graphitization furnace to overcome the shortcomings of the existing technology that cannot meet the requirements of high temperature heat treatment above 2800 °C required for complete graphitization of carbon raw materials.

Method used

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Embodiment Construction

[0013] Embodiment of the present invention: a feeding hopper 3 is arranged on the furnace top, and a storage bin 2 is arranged above the feeding funnel 3, wherein the storage bin 2 is a three-stage structure, that is, a middle bin 11 and two side bins 10 The feed funnel 3 is a double-layer circular structure, that is, the combined structure of the inner cylinder of the funnel and the outer cylinder of the funnel, and the bottom of the position between the inner and outer cylinders of the funnel forms an annular exhaust passage 13, and the annular exhaust passage 13 is connected to the exhaust gas. The tube 1 is connected; the upper electrode 4 is set in the middle position of the furnace roof and the feeding funnel 3, the lower electrode 7 is set in the middle position of the lower part of the furnace body, and the coarse particle material 5 is placed in the middle of the furnace body, and the refractory material lining of the furnace body Fine grain material 6 is placed betwee...

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Abstract

The invention discloses a vertical-type continuous graphitization furnace. A feeding tunnel (3) is arranged at the top of the furnace, and a storage bin (2) is arranged on the feeding tunnel (3); the storage bin (2) has a three-segment structure and specifically comprises a middle bin (11) and two side bins (10); the feeding tunnel (3) has a double-layer round structure and specifically has a combination structure of a tunnel inner cylinder and a tunnel outer cylinder; an annular gas exhaust channel (13) is formed at the bottom between the tunnel inner cylinder and the tunnel outer cylinder, and is connected with a gas exhaust pipe (1); an upper electrode (4) is arranged at the furnace top and at the center position of the feeding tunnel (3); a lower electrode (7) is arranged at the middle position at the lower segment of the furnace body; a coarse-particle material (5) is placed at the middle position of the furnace body, and a fine-particle material (6) is placed between a refractory-material inner liner (8) of the furnace and the coarse-particle material (5); a material discharging mechanism (9) is arranged at the bottom of the furnace body; and the annular gas exhaust channel is a triangular cavity, and the bottom employs a refractory castable (12).

Description

technical field [0001] The invention relates to a vertical continuous graphitization furnace. Background technique [0002] At present, there are mainly two types of vertical furnaces that can continuously discharge carbon raw materials for high-temperature heat treatment in China. One is a general-temperature electric calciner that uses high-alumina bricks as a thermal insulation lining, and the heat treatment temperature is 1500-2000 ° C; The first is a high-temperature electric calciner that uses carbon lining as heat preservation, and the heat treatment temperature is 2000~2500°C. Neither of these two furnace types can meet the requirements of high-temperature heat treatment above 2800°C required for complete graphitization of carbon raw materials. Since the carbon lining is a conductive material, the use of the latter furnace type will not only reduce the current efficiency, but also shorten the service life. The horizontal graphitization furnace belongs to discontinuo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C01B32/205
Inventor 谢志群
Owner GUIYANG AL-MG DESIGN & RES INST
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