High-temperature lifting electric furnace

Abstract

The invention relates to a high-temperature lifting electric furnace. The high-temperature lifting electric furnace comprises a furnace shell, a hearth and a furnace bottom lifting platform, wherein the hearth and the furnace bottom lifting platform are arranged inside the furnace shell. The furnace shell comprises a furnace body and a furnace top. The furnace bottom lifting platform is arranged at the bottom of the furnace body. A furnace door for sealing an inner cavity of the hearth is connected to the upper part of the furnace bottom lifting platform. A heating element and an exhaust pipeare arranged on the furnace top. The heating element extends into the hearth. An intake pipe communicating the inside of the hearth with the outside is arranged below the hearth. The high-temperaturelifting electric furnace is characterized in that an interlayer is arranged on the periphery of the furnace shell, one side of the interlayer is communicated with the upper part of the hearth and theother side of the interlayer is communicated with the exhaust pipe. The high-temperature lifting electric furnace has simple structure, good heat preservation effect, low energy consumption and littleenvironmental pollution.

Description

technical field [0001] The invention relates to the technical field of high-temperature furnaces, in particular to a high-temperature lifting electric furnace. Background technique [0002] In the aggregate reaction melting molding process of the bioactive aggregate produced by our company, a high-temperature lifting electric furnace is needed to melt the aggregate raw material into a molten material for subsequent granulation in the granulation tower. At present, the known lifting furnace is composed of a fixed furnace and a liftable furnace bottom. Outside the furnace is a furnace shell to protect the furnace. Between the furnace and the furnace shell is a refractory material for heat preservation. The lower part of the furnace is open. The bottom is composed of a liftable platform and hard mullite bricks on the platform. The samples to be fired are placed on the hard mullite bricks, and are lifted into the furnace from the lower opening of the furnace through the lifting ...

AI Technical Summary

Problems solved by technology

However, in practical applications, since the exhaust pipe is directly connected to the inside and outside of the furnace, when the exhaust pipe exhausts outward, it will inevitably take away a large amount of heat in the furnace, which will affect the heating efficiency of the furnace and cause a large amount of unnecessary loss of electric energy. , and the aggregate is bound to produce some toxic gas and fine dust during the baking process of the electric furnace. If these are discharged directly, they will also pollute the surrounding environment.

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