Treatment method of complicated zinc-rich leaded material

A treatment method and zinc-rich technology, applied in the direction of improving process efficiency, can solve the problems of difficult treatment, easy formation of furnace junctions, and ineffective recovery of zinc and lead, and achieve easy separation, improved adaptability, and good feasibility. and economic effects

Active Publication Date: 2015-11-11
CHENZHOU CITY JINGUI SILVER IND CO LTD
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to propose a method for processing complex zinc-rich and lead-containing materials, which solves the problems that zinc-rich and lead-containing materials with high sulfur content are easy to form furnace knots, are difficult to handle, and zinc and lead cannot be effectively recovered.

Method used

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  • Treatment method of complicated zinc-rich leaded material

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Comparison scheme
Effect test

Embodiment 1

[0022] refer to figure 1 As shown, it is a flow chart of the method for processing zinc-rich and lead-containing materials according to the embodiment of the present invention.

[0023] Step 1: Get zinc-rich and lead-containing materials (the main components and their weight percentages are: Zn15.6%, Pb9.8%, Fe5.3%, Ag32.6g / t, SiO26.4%, Cu0.5%, CaO3.4%, S15.8%), high lead slag powder (the main components and their weight percentages are: Pb44.8%, Zn5.5%, FeO10.3%, Ag348g / t, SiO27.6%, Cu0.9%, CaO5.2%), soot (the main components and their weight percentages are: Pb45.7%, Zn7.9%, Ag39g / t) are mixed together to form a mixture, and water is added to the mixture for stirring, and the The weight percentages of zinc-rich and lead-containing material, high-lead slag powder and soot in the mixture are respectively 45%, 50% and 5%, and the moisture content of the mixture is controlled at 8%. Then send it into the brick making machine to make a lump to form a lump ore, dry it naturally ...

Embodiment 2

[0029] refer to figure 1 As shown, it is a flow chart of the method for processing zinc-rich and lead-containing materials according to the embodiment of the present invention.

[0030] Step 1: get zinc-rich and lead-containing materials (the main components and their weight percentages are: Zn17.2%, Pb13.4%, Fe6.2%, Ag35.3g / t, SiO 2 4.2%, Cu0.9%, CaO5.2%, S14.9%), high lead slag powder (the main components and their weight percentages are: Pb43.2%, Zn4.9%, FeO8.9%, Ag334g / t, SiO 2 6.6%, Cu0.5%, CaO3.9%), soot (the main components and their weight percentages are: Pb47.4.%, Zn9.3%, Ag47g / t) are mixed together to form a mixture, and water is added to the mixture for Stirring, the weight percentages of zinc-rich and lead-containing materials, high-lead slag powder and soot in the mixture are respectively 40%, 55%, and 5%, and the moisture content of the mixture is controlled at 10%; It is formed into a block ore, and it is naturally dried in a ventilated place for 18 hours, ...

Embodiment 3

[0036] refer to figure 1 As shown, it is a flow chart of the method for processing zinc-rich and lead-containing materials according to the embodiment of the present invention.

[0037] Step 1: get zinc-rich and lead-containing materials (main components and percentages by weight thereof are: Zn16.3%, Pb11.8%, Fe5.7%, Ag34.1g / t, SiO 2 5.3%, Cu0.7%, CaO4.3%, S16.9%), high lead slag powder (the main components and their weight percentages are: Pb46.1%, Zn6.5%, FeO12.3%, Ag358g / t, SiO 2 9.1%, Cu1.5%, CaO6.1%), soot (the main components and their weight percentages are: Pb42.3%, Zn6.1%, Ag32g / t) are mixed together to form a mixture, and water is added to the mixture for stirring The weight percentages of zinc-rich and lead-containing materials, high-lead slag powder and soot in the mixture are respectively 60%, 30%, and 10%, and the moisture content of the mixture is controlled at 12%, and then sent into the brick making machine to make Form lumps into lumps, dry naturally for...

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Abstract

The invention discloses a treatment method of a complicated zinc-rich leaded material, which comprises the following steps that (1) the zinc-rich leaded material, a high lead residue powder and soot are taken, mixed, and stirred after water is added, and then is put in a brick making machine to be made into lump ores, and the lump ores are dried for 12-24h in a ventilated place for later use; (2) coke, limestone, iron ore and the lump ores are taken and sequentially put in a blast furnace to be smelted, wherein the smelting temperature of the blast furnace is 900-1300 degrees, the blast pressure is 7-11kpa, the unit blast volume is 24-35Nm<3> / min.m<2>, the dosage of rich oxygen is 500-780m<3> / h, and the oxygen concentration is controlled at 23.5-24.5%; and (3) after the lump ores are smelted by the blast furnace, gold and silver enriched work lead, copper matte, soot and zinc-rich slags are obtained. The gold and silver enriched work lead is sent to be subjected to electrolytic refining, the copper matte acts as a raw material of smelting copper, the soot is rich in leaded zinc and acts as a raw material of smelting leaded zinc or is returned to Step (1) to act as the raw material, and the zinc-rich slags are sent to a fuming furnace to be converted for recovering zinc. The treatment method solves the problems that the zinc-rich leaded material with high content of sulfur is liable to form furnace accretion, and is not treated easily, and zinc and lead can not be recycled effectively.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal smelting, in particular to a method for processing complex zinc-rich and lead-containing materials. Background technique [0002] At present, the pyrometallurgical methods of lead are oxygen bottom-blown smelting (SKS)-blast furnace reduction method, submerged top-blown (ISA) smelting-blast furnace reduction method, Kifset method, etc. Among the above methods, the oxygen bottom-blowing smelting-blast furnace reduction method has achieved stable and continuous production, and achieved good technical and economic indicators, and is adopted by most lead smelters in my country. [0003] Complex zinc-rich and lead-containing materials are mainly leaching slag after zinc smelting, hydrolysis slag or bag soot generated in lead smelting. The material treatment of most smelters is mainly stockpiling or returning the system ingredients for smelting. On the one hand, it affects the comprehensive re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B19/30C22B13/00C22B11/00C22B15/00
CPCY02P10/20
Inventor 柴承平粟明辉黄海飞谭霖覃小龙
Owner CHENZHOU CITY JINGUI SILVER IND CO LTD
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