Single-point feeding and multipoint spreading device and electric-arc furnace

Abstract

The invention discloses a single-point feeding and multipoint spreading distributing device and an electric-arc furnace. The electric-arc furnace comprises a boiler barrel support, a boiler barrel, a boiler lid, a cross arm brace, an electric conduction cross arm, an electrode lifting control device, an electrode, a storage bin and a material pipe which connects the storage bin with the distributing device, wherein the distributing device is positioned below the boiler lid, a feed pipe is arranged at a feed port of the boiler lid, the distributing device comprises the feed pipe, a primary distributing pipe, distributing inclined pipes and distributing nozzles, wherein the feed pipe is connected with the material pipe; the primary distributing pipe is arranged below the feed pipe; the distributing inclined pipes are arranged at the periphery of the primary distributing pipe at intervals and communicated with the inner part of the primary distributing pipe; and the distributing nozzles are arranged below the discharge ports of the distributing inclined pipes. The device adopts a novel design concept of central feeding and multipoint grading distributing and a structure of using one feed pipe to be matched with a plurality of distributing inclined pipes, all the distributing work can be completed through only one storage bin, so the functions of feeding through one central point of a single hopper and simultaneously completing furnace multipoint grading distributing are realized, and the device has a reasonable structural design.

Description

technical field [0001] The invention belongs to the technical field of non-metallic ore smelting equipment, and in particular relates to a distributor used for distributing charge for a smelting electric arc furnace and an electric arc furnace using the distributor. Background technique [0002] In the smelting production process of the non-metallic ore smelting electric arc furnace, in order to add electric furnace raw materials to the electric arc furnace, the method of feeding the electric furnace from the top of the electric arc furnace is usually adopted. In the past, a fixed straight-through feeding pipe was set in the center of the furnace cover, through which the feeding pipe was used to feed the furnace. The cross-section of the material in the furnace is triangular, and the segregation of the material is serious, resulting in less material at the furnace wall. The arc radiates the furnace wall to melt the hanging slag on the furnace wall, which is easy to cause cor...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-point feeding multi-point distributing distributor with reasonable design, uniform distribution and graded feeding, which can overcome the cost of existing multi-point distributing equipment. Defects such as high height, large space occupation, uneven fabric, and inability to classify

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