A novel graphite heater with a single end fixed

Abstract

The invention discloses a novel graphite heater with a single end fixed. The graphite heater comprises a graphite electrode. The graphite electrode extends through a furnace wall thermal insulation layer and is inserted into a heating furnace, wherein the head end of the graphite electrode is located inside the heating furnace, and the tail end of the graphite electrode is located outside the heating furnace. The graphite heater further comprises an electric connection seat, the electric connection seat is clamped at the tail end of the graphite electrode, the electric connection seat is mounted on the outer wall of the heating furnace, and the graphite electrode is fixed in the heating furnace. A clamping slot is arranged in the electric connection seat, the tail end of the graphite electrode is located in the clamping slot. A hold-down bolt is further arranged in the electric connection seat, and the hold-down bolt extends into the clamping slot. Near the tail end of the graphite electrode, a hold-down plate is arranged between the hold-down bolt and the tail end of the graphite electrode, the hold-down bolt abuts against the hold-down plate to enable the clinging of the tail end of the graphite electrode to the inner wall of the clamping slot, so that the tail end of the graphite electrode is fixed. A flange is arranged at the outer edge of the electric connection seat, and the flange is fixedly connected with the heating furnace by using a fixing bolt. The graphite heater extends into the furnace in a suspending manner with a single end fixed, disassembly, assembly and maintenance of the graphite heater are convenient, and mounting space of the graphite heater is reduced.

Description

technical field [0001] The invention relates to a high-temperature carbonization furnace for producing carbon fibers, in particular to a novel graphite heater which can be fixed at one end in the high-temperature carbonization furnace. Background technique [0002] In the high temperature carbonization furnace made by the traditional method, the heaters are installed on both sides of the furnace. Normally, both ends of the heater are fixed on the furnace wall. In this way, both sides of the carbonization furnace need to have holes, and after installation Seal the hole. This installation method has complex manufacturing process, high failure rate, and high heat loss, because holes need to be opened on both sides of the carbonization furnace, and the holes must be larger than the electric heater, which increases the heat exchange area between the furnace and the outside, and increases The leakage of heat in the furnace. In some special occasions, for high-temperature furnace...

AI Technical Summary

Problems solved by technology

This installation method has complex manufacturing process, high failure rate, and high heat loss, because holes need to be opened on both sides of the carbonization furnace, and the holes must be larger than the electric heater, which increases the heat exchange area between the furnace and the outside, and increases Leakage of heat in the furnace

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