Efficient and environment-friendly silicon carbide smelting furnace

Abstract

The invention belongs to the technical field of silicon carbide machining, and relates to an efficient and environment-friendly silicon carbide smelting furnace. The efficient and environment-friendlysilicon carbide smelting furnace comprises a furnace body and a smoke dust collecting cover. The furnace body comprises side walls. Each side wall comprises a reinforced concrete layer, a foam glassplate, a refractory fireclay brick layer, a combustion chamber interlayer and a composite refractory brick layer, wherein the reinforced concrete layer, the foam glass plate, the refractory fireclay brick layer, the combustion chamber interlayer and the composite refractory brick layer are sequentially arranged from outside to inside. The smoke dust collecting cover comprises collecting cover units. Each collecting cover unit comprises a cross beam, a purline, a cover surface and a sliding mechanism. Each cover surface is of an arc-shaped surface structure, the smoke dust collecting cover is located above the furnace body, and rails are fixed to the reinforced concrete layers of the side walls through fixed seats. According to the silicon carbide smelting furnace, the multi-layer structureside walls are combined with the arc-shaped collecting cover, and the silicon carbide smelting furnace is good in heat insulating effect, low in environmental pollution and low in operating cost andcan be used for large silicon carbide smelting.

Description

technical field [0001] The invention belongs to the technical field of silicon carbide processing, and relates to an efficient and environment-friendly silicon carbide smelting furnace. Background technique [0002] Silicon carbide is usually obtained by high-temperature smelting with quartz sand, finely washed anthracite or petroleum coke as the charge. For the smelting of silicon carbide, first, the charge is processed into a suitable particle size by crushing equipment, and then mixed in proportion to form a charge through chemical calculation; then, the charge is placed in a batch resistance furnace, with end walls on both sides of the resistance furnace, and a furnace core body Connected between the two electrodes, the furnace core is surrounded by the furnace material that participates in the reaction, and the outside is the heat preservation material; finally, the electric furnace is powered, and the temperature of the furnace core body rises to 2600 ℃ ~ 2700 ℃, and t...

AI Technical Summary

Problems solved by technology

[0003] At present, most silicon carbide production enterprises at home and abroad still adopt the traditional open production mode for production; CO produced after the escaped CO gas is ignited 2 The gas is also directly scattered in the air. At the same time, during the water cooling process, the dust and some harmful gases are also directly scattered in the air, causing serious air pollution.

In addition, the existing smelting furnace wall structure is relatively simple, and the insulation performance is average, so that the heat during smelting cannot be effectively concentrated, which increases the cost of silicon carbide smelting

Images