A method for controlling furnace bottom rise in titanium carbide slag production process

Abstract

The invention discloses a method for controlling the rising of a furnace bottom in a production process of a titanium carbide slag. When the rising furnace bottom is not higher than the upper limit position of a slag outlet of a reaction furnace, a first input power is adopted in power transmission in the fusion temperature rise period, wherein the first input power is 50-90% of the rated power of the reaction furnace; the input power is reduced to a second input power for power transmission in the carbonization reduction period, wherein the second input power is 45-65% of the rated power of the reaction furnace; the input power is increased to a third input power for power transmission in the slag discharge period, wherein the third input power is 75-95% of the rated power of the reaction furnace, and the amount of residuals in the furnace bottom is controlled not to be higher than the upper limit position of the slag outlet of the reaction furnace after the slag discharge. When the rising furnace bottom is higher than the upper limit position of the slag outlet of the reaction furnace, the slugging operation is implemented, and the production is carried out after the amount of the residuals in the furnace bottom is not higher than the upper limit position of the slag outlet of the reaction. The method provided by the invention effectively solves the problem of rising of the furnace bottom caused by deposition of titanium carbide in the reduction process.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and relates to a process for preparing titanium carbide-containing materials by using a carbothermal reduction method, and more specifically, relates to a method for controlling furnace bottom rise in the production process of titanium carbide slag. Background technique [0002] Titanium carbide is used to make cermets, cutting tool materials, wear-resistant refractory materials, heat-resistant alloys, hard alloys, etc. due to its excellent properties such as high temperature resistance, wear resistance, corrosion resistance, high strength, high hardness, and thermal conductivity. It is widely used in high-tech industries such as metallurgical mines, machinery, chemicals, microelectronics, aerospace and national defense. [0003] Titanium carbide can be prepared by high-temperature carbothermal reduction reaction in electric furnace or submerged arc furnace by using raw materials containing ti...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a control method suitable for solving the problem of furnace bottom rise when titanium-containing raw materials are prepared by high-temperature carbothermal reduction reaction in electric furnace or submerged arc furnace.