Harmless treatment device and method for lead-zinc sulfate

Abstract

The invention relates to the technical field of metal compound treatment, in particular to a harmless treatment device for lead-zinc sulfate, which comprises a rotating cylinder; a connecting ring fixedly is sleeved on an upper end opening of the rotating cylinder; a driving mechanism for driving the connecting ring and the rotating cylinder to rotate is arranged on the outer surface of the connecting ring; a fixed cylinder is movably inserted in the upper portion of the inner side of the connecting ring; a guide ring extends out of the inner wall of the connecting ring; the upper end face and the lower end face of the guide ring are attached to a port of the fixing cylinder and a port of a rotating cylinder respectively; the rotating cylinder is rotatably installed on the upper end face of a bottom plate through a lifting mechanism arranged at the lower end; and the fixed cylinder is fixedly connected to the upper end face of the bottom plate through a fixing structure. The invention further provides a harmless treatment method for the lead-zinc sulfate, lead and zinc sulfate can be selectively converted into artificial sulphide ore with good floatability at the low temperature, and the lead and zinc sulfate can be conveniently recycled through a conventional sulphide ore flotation separation technology in the follow-up process.

Description

technical field [0001] The invention relates to the technical field of metal compound treatment, in particular to a harmless treatment device and method for lead-zinc sulfate. Background technique [0002] Sintering-blast furnace smelting process is the main process of lead smelting in my country, accounting for about 85% of the lead smelting industry; boiling roasting-leaching-electrowinning process is the main process of zinc smelting in my country, accounting for 70% of the zinc smelting industry; lead smelting process mainly produces crude Smelting reduction slag, rough refining dross, refining dross and precious metal smelting waste, among which rough refining reduction slag accounts for about 85% of the total slag; zinc smelting mainly produces zinc leaching slag, zinc purification crystallization slag, dross, etc. Zinc net slag accounts for about 94%, and zinc-rich slag accounts for about 64%. A large amount of leaching slag containing lead and zinc is produced in the p...

AI Technical Summary

Problems solved by technology

[0003] At present, the environmental pollution caused by the large amount of lead and zinc leaching slag produced in the process of hydrometallurgy, comprehensive utilization of copper soot and bismuth smelting, the cost of recycling lead and zinc by wet method or fire method is relatively high, and the fire method needs more than 1,000 degrees Celsius Roasting at high temperature, wet method requires too much treatment, so it is difficult to recover by conventional beneficiation methods

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