Electric kiln for firing high purity rare earth oxides

Abstract

The invention relates to an electric kiln for firing high purity rare earth oxides. The electric kiln for firing the high purity rare earth oxides comprises an iron frame, an electric kiln main body, heating devices, a pushing structure, a heat insulating material and a temperature control device, wherein the electric kiln main body is composed of special-shaped bricks and light bricks and forms a firing cavity, a plurality of through holes for mounting the heating devices are formed in the positions of the special-shaped bricks; the pushing structure comprises a bottom plate, a top plate, a pushing plate and a plurality of balls, and the pushing plate is arranged above the bottom plate and slides on the bottom plate through the balls; the heating devices are a plurality of silicon carbide rods, and the silicon carbide rods are correspondingly arranged between the top plate and the special-shaped bricks and between the bottom plate and the special-shaped bricks after penetrating through the through holes; and the heat insulating material covers the outside of the electric kiln main body. The electric kiln for firing the high purity rare earth oxides is novel in structure and adopts the high-density silicon carbide rods to heat, the silicon carbide rods divided into three groups are connected to 380V voltage in a star-shaped mode, so that the electric energy is greatly saved and the production cost is greatly reduced in the heating process, and the electric kiln is worthy to be greatly promoted.

Description

technical field [0001] The invention relates to a burning electric kiln, in particular to an electric kiln for burning high-purity rare earth oxides. Background technique [0002] Rare earth is a group of new functional materials with multiple properties such as electricity, magnetism, light, and biology. It is an important basic material for high-tech fields such as information technology, biotechnology, and energy technology and national defense construction. Traditional industries such as agriculture, chemicals, and building materials play an important role. Rare earths are widely used, and there are many kinds of functional materials that can use rare earths. A large-scale high-tech industrial group is being formed, with very broad market prospects and extremely important strategic significance. It has the reputation of "industrial vitamin". [0003] In the production and processing of rare earth products, burning is a very important process. The burning electric furna...

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Problems solved by technology

[0003] In the production and processing of rare earth products, burning is a very important process. The burning electric furnace is one of the equipment that must be used. The existing burning kiln is not well sealed and consumes a lot of power.

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