Cooling and dust collecting device special for electric arc furnace

Abstract

The invention discloses a cooling and dust collecting device special for an electric arc furnace. The cooling and dust collecting device comprises a lower furnace cover, a middle furnace cover and anupper furnace cover which are sequentially arranged on a furnace body from bottom to top, wherein a dust collecting cover is arranged over the upper furnace cover; the top of the dust collecting coveris connected with a dust suction pipe; a draught fan is arranged at an outlet of the dust suction pipe; a dust collecting water cooling furnace cover is arranged on the top of the upper furnace cover; the upper furnace cover comprises a bottom plate and a cover plate positioned above the bottom plate; the bottom plate and the cover plate are horizontally arranged; and a center water cooling structure surrounding a feeding hole and three electrode inserting holes and an edge water cooling structure positioned on the periphery of the center water cooling structure are arranged on the upper surface of the bottom plate. According to the cooling and dust collecting device, the dust removal effect is improved, and the environment in a workshop is greatly improved; and the feeding hole and the whole furnace cover are cooled, the power of the draught fan is greatly reduced, and the energy saving and consumption reducing effects are obvious. A five-in five-out water cooling channel is adoptedin the upper furnace cover to completely cover the whole furnace cover, the furnace cover can keep good stability under the high-temperature condition of 2500 DEG C, and therefore stable work of the whole electric arc furnace is ensured.

Description

technical field [0001] The invention belongs to the technical field of refractory material production, and in particular relates to a special cooling and dust collection device for an electric arc furnace. Background technique [0002] During the production process of the electric arc furnace, since the distance between the dust collection cover on the upper part of the original electrode arm column and the small furnace cover is about 3 meters, due to the use of openings for dust collection, a large air volume and wind pressure are required for dust collection, and the dust collection effect is not good. , especially when the arc is started, the workshop has a lot of smoke and dust, resulting in a poor working environment in the workshop. The power of the fan motor used is 75KW, and it cannot achieve good dust removal effect even when it is running at full load. In addition, the small furnace cover used for casting AZS zirconium corundum in the electric arc furnace was in n...

AI Technical Summary

Problems solved by technology

When M bricks (αβ) are used as materials, the furnace temperature of the electric arc furnace reaches about 2500°C, and the ordinary small furnace cover cannot withstand the high temperature, causing deformation, bursting, etc.

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