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Lead bullion refining device and lead bullion refining method

A crude lead refining and crude lead technology, applied in the fields of instruments, optics, photography, etc., can solve the problems of inability to efficiently complete copper removal and arsenic, antimony and tin removal, and shorten the crude lead refining cycle, reduce energy consumption, and reduce construction. effect of investment

Pending Publication Date: 2022-07-01
CHINA ENFI ENGINEERING CORPORATION
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] The main purpose of the present invention is to provide a crude lead refining device and a crude lead refining method to solve the problem of inability to efficiently complete decopper and arsenic, antimony and tin removal in the prior art when refining crude lead with high content of arsenic, antimony and tin The problem

Method used

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  • Lead bullion refining device and lead bullion refining method
  • Lead bullion refining device and lead bullion refining method

Examples

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Embodiment 1

[0054] use figure 1 and 2 The crude lead refining device shown in the following crude lead refining and removing copper and arsenic, antimony and tin, crude lead is smelting crude lead, and the components are as follows (weight percentage): Pb, 95%; Cu, 1.50%; As, 0.6%; Sb, 1.5%; S, 0.20%; other elements 1.2%, the crude lead weight is 60t.

[0055] The crude lead refining device is a horizontal rectangular refining furnace, and the furnace cavity is divided into two areas by a partition wall, which are the copper removal area (the first refining area) and the arsenic, antimony and tin removal area (the second refining area). The length ratio is 3:1. The copper removal area is connected with the lower molten pool of the arsenic, antimony and tin area for the circulation of crude lead in the copper removal area and the arsenic, antimony and tin area; the upper molten pool is separated by a partition wall, and the flue gas area is connected. The copper removal area is provided...

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Abstract

The invention provides a lead bullion refining device and a lead bullion refining method. The crude lead refining device comprises a refining furnace, the refining furnace is provided with a furnace cavity, the furnace cavity is horizontally divided into a first refining area and a second refining area, and the bottoms of the first refining area and the second refining area are communicated; wherein the first refining area is used for conducting refining and copper removal on lead bullion to produce lead matte and copper-removed lead bullion; a first heat supply unit is arranged at the upper part of the first refining area; a cooling unit is arranged outside the first refining area, the first refining area is further provided with an outer circulation flow path, and the cooling unit is arranged on the outer circulation flow path; the second refining area is used for oxidizing the copper-removed lead bullion to remove arsenic, antimony and tin so as to form softened lead, and the second refining area is provided with an oxygen supply unit and a second heat supply unit. The lead bullion refining period is effectively shortened, the energy consumption of lead refining is reduced, and the project construction investment is reduced.

Description

technical field [0001] The invention relates to the technical field of crude lead smelting, in particular to a crude lead refining device and a crude lead refining method. Background technique [0002] All lead smelting enterprises in my country use electrolytic refining to produce refined lead. Before electrolytic refining, the crude lead produced by the smelting furnace needs to be preliminary pyrolytically refined to remove impurity elements, so that the content of copper, arsenic, antimony, tin and other elements in the anode plate can meet the requirements of the anode plate. [0003] At present, the methods for removing copper from crude lead mainly include smelting and removing copper in batches in lead melting pots and adding sulfur to remove copper, and copper elements are removed in the form of copper scum; and continuous copper removal furnaces remove copper elements in crude lead. Removed as lead matte. For crude lead with high content of arsenic, antimony and ...

Claims

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Application Information

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IPC IPC(8): C25C1/18
CPCC25C1/18Y02P10/20
Inventor 吴卫国许良周宝辛鹏飞
Owner CHINA ENFI ENGINEERING CORPORATION
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