Technique of maufacturing electrocast refractories through bubbling method

Abstract

A technology for preparing the electrosmelting refractory material by bubbling method includes proportionally mixing its raw materials and flux, loading the mixture in electric smelting furnace which has an air tube communicated with compressed air tank, and smelting while introducing compressed air to the furnace. Its advantages are no need of turning off power supply on blowing oxygen, high uniformity and density of refractory.

Description

Technical field: [0001] The invention relates to a production process of an electric melting refractory material, which belongs to the field of refractory materials, and in particular relates to a production process of an electric melting refractory material by a bubbling method. Background technique: [0002] The existing fused refractory production process mostly adopts the oxidation method. The process is to mix the raw materials and flux for the production of fused refractory materials into the electric melting furnace, and when the temperature in the furnace is raised to a high temperature zone of about 2000 ° C, oxygen is blown into the molten charge in the furnace through an oxygen gun. Accelerate the oxidation reaction to ensure the quality of the produced refractories. The deficiencies in this production process are mainly manifested as: First, every time oxygen is blown, the power supply of the electric furnace must be temporarily stopped, the oxygen gun is insert...

AI Technical Summary

Problems solved by technology

Because the outer surface of the oxygen blowing hole tube of the oxygen lance used for oxygen blowing is covered with a water jacket, when the oxygen lance is inserted into the high-temperature melt of about 2000°C to blow oxygen, if the oxygen lance leaks, it will cause major accidents such as explosion happened

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