Side-blown continuous smelting process and device for electronic scrap

Abstract

The invention discloses a side-blown continuous smelting process and device for electronic scrap. The smelting device is divided into a smelting area and a blowing area, wherein a water-cooled partition wall is arranged between the two areas; the lower end of the water-cooled partition wall exceeds an interface of slag and a metal layer, so that black copper flows in the blowing area through an opening on the lower part of the water-cooled partition wall; waste slag obtained from a smelting reaction is discharged from a wall slag tap at the end of the smelting area; and the furnace bottom is inclined from the smelting area to the blowing area, and crude copper obtained from the blowing reaction is discharged from a wall copper discharge opening at the end of the blowing area. According to flow of melt at the lower end of the partition wall, latent heat of the melt is efficiently utilized, and the smelting device has the characteristics of high efficiency and energy conservation; and moreover, a plurality of oxygen-enriched supply inlets are formed on a furnace wall on side faces of the furnace smelting area and the blowing area, the slag layer and the black copper layer are respectively stirred for reaction, and the thermodynamic and dynamic conditions of the reaction are greatly improved, so that the reaction is carried out at high efficiency, the operation time is shortened, the electronic scrap and copper-containing materials can be continuously smelted, crude copper is produced, and precious rare metals contained in the electronic scrap are enriched to the crude copper.

Description

technical field [0001] The invention relates to a nonferrous metal smelting process and a smelting device, in particular to a side blowing continuous smelting process and a device for recycling electronic waste. Background technique [0002] At present, my country's electronic waste resource recycling technology is divided into two categories: one is the physical technology based on physical methods, which mechanically crush waste cables, wires and some components to separate part of the organic dust, and then enter the water immersion separation , to obtain relatively coarse metal powder, and then smelting and agglomerating the metal powder, and electrolytically separating various metals; the second is chemical technology based on chemical methods, combining electronic waste such as circuit boards and contacts with hydrochloric acid, nitric acid, sulfuric acid or Their mixture, cyanide solution, etc. are reacted to make various valuable metals enter the solution, and the meta...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a side-blowing continuous smelting process and device for electronic waste, which overcomes the shortcomings o

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