Improved method for 5-tube area smelting furnace

Abstract

The embodiment of the invention discloses an improved method for a 5-tube area smelting furnace. The improved method comprises the following steps that (a) a furnace body is re-arranged according to the structural layout of the 5-tube area smelting furnace, and a plurality of furnace tubes are arranged in the furnace body; (2) electromagnetic induction coils are correspondingly sleeved on the furnace tube, and a plurality of electromagnetic induction coils are sequentially connected in series; and (c) a cooling water inlet pipe is correspondingly arranged at the front end part and the middle part of the plurality of electromagnetic induction coils which are sequentially connected in series, and a cooling water outlet pipe is arranged at the tail end part. According to the improved method,the water inlet pipe is correspondingly arranged at the front end and the middle part of the plurality of electromagnetic induction coils which are sequentially connected in series, the cooling requirements of the electromagnetic induction coils of the tube area smelting furnace are met, the production operation safety is guaranteed, the service life of the electromagnetic induction coils is prolonged, and the equipment cost is reduced.

Description

technical field [0001] The invention relates to the technical field of zone melting furnaces, in particular to an improvement method for a five-tube zone melting furnace. Background technique [0002] In the process of regional smelting and purification of germanium, the main equipment used is a zone melting furnace, which is heated by electromagnetic induction to melt germanium with a melting point of 938.3°C for impurity removal and purification. Among them, the induction coil is mainly used for electromagnetic induction heating. Since the purification process is generally not once, and the duration is generally 15-18h, the coil must be effectively cooled. [0003] At present, the mature zone furnace is equipped with 5 tubes, and the induction coil cooling can fully meet the requirements of safe production. However, with the actual production needs of metal germanium, the production efficiency of the 5-tube zone furnace cannot meet the requirements gradually. If the number...

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Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide an improved method for a 5-tube zone melting furnace, the improved zone melting furnace increases the amount of germanium metal purification, and solves the problem that the cooling system is difficult to meet the production requirements for coil cooling due to the increase of furnace tubes , and the water temperature at the cooling water outlet is too high, causing the coil to be heated and deformed, resulting in safety hazards, reduced service life, and increased depreciation costs