Plasma melting furnace device based on molten salt heating

Abstract

The invention discloses a plasma melting furnace device based on molten salt heating. A furnace body is included, the furnace body is in sealed connection with a furnace cover, the side wall of the furnace body is provided with a plurality of plasma torch channels inclining downwards from outside to inside, each plasma torch channel is internally connected with a plasma torch a, and the side wall of the furnace body is provided with a discharging channel inclining downwards from outside to inside. The inner wall of the furnace body and the inner wall of the discharging channel are both in sealed connection with a heat conduction layer, the heat conduction layer, the furnace body and the inner wall of the discharging channel form a sealed cavity, the sealed cavity is filled with a molten salt layer, the inner wall of the furnace body is further connected with an electrode in the sealed cavity, and a feeding channel is formed in the upper side wall of the furnace body. The high-temperature molten salt layer is arranged in the plasma furnace, the bottom and the side of the plasma melting furnace are heated by heating molten salt, and efficient utilization of heat is realized, so that materials in a hearth are uniformly molten, the fluidity of molten materials is improved, and automatic feeding and discharging operation is realized.

Description

technical field [0001] The invention belongs to the technical field of plasma melting furnace equipment, and in particular relates to a plasma melting furnace device based on molten salt heating. Background technique [0002] The plasma melting furnace is used in the field of hazardous waste disposal, and has many advantages such as wide application range, reduction, and harmlessness. The principle is to use a plasma torch as a heat source to melt the reactants to form a non-toxic and harmless glass body. [0003] At present, the existing plasma furnace usually adopts top-inserted and side-inserted plasma torches, and the liquid level of the melt pool in the furnace is lower than the position of the plasma torch. The main disadvantages are: (1) Only the liquid surface of the molten pool can accept the heat conduction and heat radiation of the plasma torch, while the heat absorption under the molten pool is insufficient, and the heat conduction only depends on the magma itse...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a plasma melting furnace device based on molten salt heating, which overcomes the problem that the temperature distribution in the furnace is extremely uneven due to the huge difference between the temperature at the bottom of the furnace and the upper part of the traditional plasma furnace

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