An automatic feeding device for electric arc furnace sealed inclined rail

Abstract

The invention discloses an automatic electric arc furnace sealed inclined track feeding device which comprises an inclined feeding hopper and a lifting inclined hopper, wherein the inclined feeding hopper is connected with a waste steel preheating chamber or an electric arc furnace body; the lifting inclined hopper makes reciprocation lifting movement automatically on the inclined track; a baffle sealing door I and a baffle sealing door II are correspondingly arranged at the bottoms of the inclined feeding hopper and the lifting inclined hopper; the baffle sealing door II is a swinging arc-shaped baffle sealing door II. By adopting the technique, automatic feeding of waste steel can be achieved, so that the overall system is relatively energy-saving, safe and convenient to maintain, has great advantages of investment and construction, and is not only applicable to old electric arc furnace transformation, but also applicable to newly constructed electric arc furnace items, and is wide in applicability.

Description

technical field [0001] The invention belongs to the field of electric arc furnaces, and in particular relates to an automatic feeding device for sealed inclined rails of electric arc furnaces. Background technique [0002] In electric furnace steelmaking, the development of automatic feeding technology is one of the important means for global electric arc furnace steelmaking technology to improve production efficiency and realize unmanned operation. Although some automatic feeding devices have been proposed in the prior art, most of them have the problems of complex structure, poor mechanism stability and reliability. For example, a high-level automatic feeding device adopts a self-locking flap door inclined hopper. The hopper door is a flap door, which can be opened and closed by an opening and closing mechanism. The opening and closing mechanism includes a self-locking lever. When the flap door is closed , the flap door is self-locking; but if there is a failure of the se...

AI Technical Summary

Problems solved by technology

For scrap steel preheating type electric furnace (such as finger shaft furnace), there will be a large amount of flue gas overflowing at the moment of adding scrap steel, resulting in energy loss; It is an important energy-saving and environmentally friendly production technology. According to statistics, each time the electric furnace is opened and fed, the energy consumption loss will be 10-15kwh / ton of steel, while the traditional electric furnace is opened 2-3 times per smelting furnace. Dissipated during feeding

It should be noted that neither the above-mentioned high-level automatic loading device nor the tipping-type automatic loading device can realize fully enclosed feeding, which is not conducive to energy saving and consumption reduction of enterprises

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