Reduction Distillation Furnace Used in Sponge Titanium Production

Abstract

The invention discloses a reduction distillation furnace for sponge titanium production. A furnace casing is respectively connected with a flange and a hearth; an heating element and an external insulation layer are arranged in the furnace casing; a barrier divides the reduction distillation furnace into an upper part and a lower part; a condenser is arranged in the external insulation layer on the upper part of the reduction distillation furnace; a cooling medium inlet pipe is arranged above the barrier; a cooling medium outlet pipe penetrates through the flange; a clearance and a leakage discharge pipe are arranged between an internal insulation layer and the condenser; the flange above the clearance is provided with a pressure relief port; a middle insulation layer is arranged between the external insulation layer and the internal insulation layer in the lower part of the reduction distillation furnace; a heat exchanger is arranged outside the middle insulation layer; a heat inlet pipe is arranged above the hearth; and a heat outlet pipe is arranged below the barrier. The reduction distillation furnace can enhance the reduction charging rate, shorten the production cycle, improve the insulation conditions of the lower part of the reduction distillation furnace and lower the power consumption and production cost.

Description

Technical field [0001] The invention belongs to the technical field of sponge titanium production, and particularly relates to a reduction distillation furnace used in the production of sponge titanium. Background technique [0002] At present, the domestic and foreign industrial production of sponge titanium adopts the method of magnesium reduction of titanium tetrachloride. In the reduction distillation process, most of the furnace types are produced by the inverted "U" type combined method, which is characterized by large single furnace output, high pass rate and energy consumption Low advantage. In order to reduce production costs, countries all regard large-scale equipment as the direction of technological development. The reaction of magnesium to reduce titanium tetrachloride is an exothermic reaction. In the upper part of the reduction distillation furnace and the upper part of the reactor, a large amount of waste heat is generated during the reduction production process....

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Problems solved by technology

In the reduction distillation furnace, the lower part and the lower part of the reactor, external heating is required to maintain the melt temperature to ensure the temperature of the liquid magnesium and the discharge temperature of magnesium chloride. The upper part of the distillation furnace is used for heat dissipation, and the entire reduction distillation needs to be kept warm during distillation. In the existing reduction distillation furnace, the heat in the upper part is generally released by external ventilation during the reduction period, and recycling has not been realized.

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