Efficient sealing continuous graphitization furnace

Abstract

The invention relates to a high-efficiency sealed continuous graphitization furnace, which comprises a furnace body, a sealing cover is arranged above the furnace body, a feeding hopper and a volatile matter discharge device are arranged on the sealing cover; a graphite heating chamber is arranged inside the furnace body, and the graphite heating chamber Axially from top to bottom, it is divided into preheating and roasting zone, slow heating zone and free heating zone. The center of the graphite heating chamber is equipped with an anode electrode, and the outer ring of the anode electrode is the cathode electrode. The graphite to be heated is placed between the anode and the cathode. ; The bottom end of the graphite heating chamber is connected to the inlet end of the sealed rotary cooling kiln through the discharge valve, and the discharge end of the sealed rotary cooling kiln is connected to the weighing device. The invention has stable quality, can easily guarantee technical indicators such as graphitization quality, graphite purity, specific surface area, etc., has low energy consumption, effectively discharges volatile matter, and is environmentally friendly and efficient.

Description

technical field [0001] The invention relates to a graphitization furnace, in particular to a high-efficiency sealed continuous graphitization furnace. Background technique [0002] High-purity graphite is widely used in battery anode materials, nuclear graphite in the nuclear industry, military high-temperature-resistant graphite and stealth materials, anti-corrosion materials, conductive materials, metallurgical industry, petrochemical industry, etc. It is a very important industrial material. [0003] At present, the main equipment used to produce graphitized powder at home and abroad includes Aqisun graphitization furnace, serial graphitization furnace and electrode heating graphitization furnace. Both the Acheson furnace and the series furnace use resistance heat transfer to heat graphite, the heating efficiency is low (the effective utilization rate of power is about 30%), the graphite heated in the furnace is uneven, the heating temperature of graphite is low, and the ...

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Problems solved by technology

[0004] The present invention aims at the problems existing in the above-mentioned prior art, and provides a high-efficiency sealed continuous graphitization furnace, which solves the problem that the graphitization furnace in the prior art is easy to produce waste carbon, the quality is difficult to meet the standard, and the power utilization rate is low, and the sealed operation cannot be achieved. , resulting in poor working environment and large material loss in the workshop

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