Technique of maufacturing electrocast refractories through bubbling method
A technology of refractory materials and production process, which is applied in the field of refractory materials, can solve problems such as explosion, and achieve the effects of uniform furnace charge composition, simplified production process, and reduced negative impact on quality
Inactive Publication Date: 2005-10-05
侯松发
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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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[0014] As shown in the figure, the method of the present invention is to mix the raw materials and fluxes for producing fused refractories and then add them into the electric melting furnace 1; 3 of the through hole 4; in the through hole 4, an air guide pipe 5 is arranged, and the air guide pipe 5 communicates with the compressed air storage tank 6 arranged outside the furnace body; Valve 7, pressure reducing valve 8, gas flow meter 9; during smelting, open the inlet valve 7 at the same time as the arc strikes to slowly input compressed air from the bottom of the furnace cavity into the cavity of the input electric melting furnace 1 from the air guide pipe 5.
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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...
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IPC IPC(8): C04B35/66
Inventor 侯松发
Owner 侯松发
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