Melt opening type continuous fusion electric melting furnace for magnesia

Abstract

The present invention relates to a melt opening type continuous fusion electric melting furnace for magnesia. A technical scheme provided by the invention is that: the furnace comprises a furnace shell, an electrode and a holder vehicle, the furnace shell has a barrel-shaped which has an opening upper-end and a closed lower-end, an inner wall of the furnace shell connects with a fireproof layer, adischarge port connects with a baffle plate by passing through the furnace shell and the fireproof layer, the electrode can move right to left relative to the furnace shell. The furnace also comprises a temperature measuring hole which extends into the fireproof layer by passing through the furnace shell. The fireproof layer is made by firebricks. The furnace can continuously process electric smelting production, save raw material, save energy, and has equal quality of products.

Description

Technical field: [0001] The invention of the invention relates to an electric melting furnace, in particular to an open melting electric melting furnace capable of continuously melting magnesia. Background technique: [0002] At present, the frit method is generally used in electric melting furnaces for making fused magnesia from refractory materials such as molten magnesia. When melting, part of the raw materials are placed in the furnace body in advance as the bottom. The electrode can only be placed in the center of the furnace body, and a layer of carbon powder is placed between the electrodes. After electrification, with the melting of magnesium oxide, the remaining raw materials are put into the furnace body. The upper layer of raw materials is melted, and finally, a layer of raw materials is placed on it as a cap, so that "sand" will be formed around the furnace body to wrap the fused magnesia to form a molten lump, and then the furnace body will be separated from th...

AI Technical Summary

Problems solved by technology

The deficiencies of existence are: one, each furnace body forms a crucible (a molten mass) by itself and cannot be continuously produced, so each furnace has bottom and capping materials to return, and the by-product "skin sand" accounts for more than 15%, which is wasteful. raw material

The third is that the temperature of the furnace body can reach about 1300°C, and the loss of thermal energy radiation is serious, resulting in a waste of energy

Fourth, the quality is not balanced

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