Feeding device of electric furnace

Abstract

The invention provides a feeding device of an electric furnace; the feeding device comprises a feeding pipe, a taper-shaped material pipe and a taper-shaped cloth head; the feeding pipe is provided with a circular cross section; the upper end of the taper-shaped material pipe is connected with the lower end of the feeding pipe, and the internal cavity of the taper-shaped material pipe is communicated with that of the feeding pipe; the taper-shaped cloth head is arranged in the taper-shaped material pipe; the external circumference of the taper-shaped cloth head and the internal circumference of the taper-shaped material tube form a taper-shaped annular cloth channel; and a leakage chute is formed on the external wall of the taper-shaped cloth head. With adoption of the feeding device of the electric furnace, the stacking area at a material-falling place can be enlarged remarkably, the material pile is promoted to be thin, the grain fineness distribution is uniform and the shape of the material-falling area is tallied with the allowed shape; the utilization of heat area is enlarged and the melting of the furnace materials is accelerated; and the feeding device of the electric furnace is high in yield, less in consumption of electric energy and low in production cost.

Description

technical field [0001] The invention belongs to the field of electric furnaces, in particular, the invention relates to a charging device for an electric furnace. Background technique [0002] Iron and steel metallurgy and non-ferrous metal electric furnace melting and smelting, especially open-arc smelting, are completed by rapidly heating the charge on the furnace by electric arc, and heating and melting the charge by high-temperature slag liquid on the upper part of the furnace to generate boiling. When the transmission power is constant, the more material melted per unit time, the higher the output, the lower the power consumption of the product, and the lower the production cost. To achieve the above purpose, the easiest way is to evenly spread a thin layer of charge on all the high-temperature slag liquid in the furnace that can be used to spread the material, so that the arc light and high-temperature slag are heating and melting the charge. make a contribution. How...

AI Technical Summary

Problems solved by technology

However, the actual device failed to do this, which is due to: ① There are many electrode holes, flue holes, explosion-proof holes, etc. on the electric furnace cover occupying a large area; There are few places and the position is awkward, so the number of feeding ports in the electric furnace is small; the diameter of the feeding ports should not be too large, which causes the charge to be added to the furnace to be a point pile, scattered on a small furnace area, and melts slowly. Shaped like an "iceberg", there is no material on the large area of ​​the hearth

②Most of the currently used fee

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