Oxygen-rich reduction furnace for processing low-grade multi-metal material

Abstract

The invention discloses an oxygen-rich reduction furnace for processing a low-grade multi-metal material. The oxygen-rich reduction furnace comprises a furnace crucible, a copper water jacket furnace wall and a copper water jacket furnace top which are sequentially arranged from bottom to top, wherein a steel structure frame body is arranged on the periphery, and the furnace crucible is positioned on a bottom surface framework of the steel structure frame body; the copper water jacket furnace wall comprises a plurality of layers of copper water jackets, an air nozzle and a hole punching and slag discharge device are arranged at the bottom of the copper water jacket at the bottom layer, and a fixed frame for connecting with the steel structure frame body is arranged on the outer wall of the copper water jacket furnace wall; and the copper water jacket furnace top is hung at the upper end of the steel structure frame body, and a solid feed port, a liquid feed port and a flue port for smoke exhaust, which are communicated with the copper water jacket furnace top, are arranged at the upper end of the copper water jacket furnace top. The heating surfaces of all the copper water jackets are embedded with dovetail groove-shaped bricks, so that the service life of the copper water jackets is greatly prolonged, and the structure of the hole punching and slag discharge device can overcome the defects that a water jacket at a slag notch is prone to water leakage, and shutdown is required for replacing the water jacket. The oxygen-rich reduction furnace disclosed by the invention adopts an oxygen-rich melting pool for melting and has the characteristics of small smoke gas amount, low heat which is taken away by smoke gas, high temperature of the melting pool and easiness in volatilization of lead and zinc.

Description

[0001] technical field [0002] The invention relates to an oxygen-enriched reduction furnace, in particular to an oxygen-enriched reduction furnace capable of processing smelting slag discharged after the oxygen-enriched reduction furnace processes low-grade polymetallic materials and directly processing low-grade polymetallic materials. Background technique [0003] With the increasingly stringent environmental protection policies in my country and the implementation of access conditions for copper, lead, zinc and other industries, the demand for new non-ferrous smelting processes that meet environmental protection requirements and low production costs has become increasingly prominent. At the same time, with the dwindling of high-grade primary ore resources, new processing requirements are put forward for materials with low grades, difficult to handle by traditional processes, and complex polymetallic materials. It is required that the new smelting process is suitable for ...

AI Technical Summary

Problems solved by technology

For low-grade polymetallic materials, the current metallurgical furnace is difficult to process, so it is necessary to develop a new type of furnace, which can recover copper, lead, zinc, indium and other metals at the same time

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