New Ideas for the Design of Green Smelting Project of Domestic …
305
Research, Development, and Application of Smelting
Technology and Equipment of Side Blown Triple Furnace
with Oxygen Enrichment
This project of GXHC company consists of a production line with a capacity of
processing annually 300,000 tons of concentrates. Design objectives were to collaboratively treat complex multi-metal raw materials, to recycle valuable elements
such as antimony, silver, zinc, copper, bismuth, and sulfur in addition to producing
electrical lead, and to develop a complete set of key processes and equipment for
collaboratively smelting lead–antimony and silver. The plant was commissioned in
2016.
Compared with the existing lead-related process, the project has the following
features:
CSCC Process—The First Set of Side Blown Triplex Furnace Involving
Lead Oxygen Enrichment in the World
Continuous production of three metallurgical furnaces has been tried for the first time.
Continuous production has always been a development direction for metallurgical
workers, which is not only beneficial to the collection and utilization of residual heat
of high-temperature flue gas in metallurgical furnaces, but also greatly reduces the
labor intensity.
By means of cold model testing and numerical simulation, the basic laws of
momentum transfer, i.e. heat transfer and mass transfer in bubbling combustion
conditions in the molten pool are investigated.
The structure and material of the three furnaces were innovated and transformed
into design, which greatly improved the stability and service life of the furnace in
production.
For the first time, three furnaces were used in a linear configuration, and the
liquid slag could be self-flowing by using the height difference. In order to meet the
environmental standards for disposing waste slag, the fuming furnace is designed
with a choice for both continuous slag discharge and intermittent slag discharge.
Anodic Mud Treatment and Integration of Rare and Precious Metals
The anodic mud with high antimony and low silver lead concentrations is treated
by oxygen-enriched side blowing smelting process. The whole process is clean and
efficient, and valuable metals such as lead, copper, gold, silver, antimony, bismuth,
and tellurium are effectively recovered. The recovery rate of the main metals such as
gold and silver is more than or equal to 99% and that of antimony is more than 95%.
305
Research, Development, and Application of Smelting
Technology and Equipment of Side Blown Triple Furnace
with Oxygen Enrichment
This project of GXHC company consists of a production line with a capacity of
processing annually 300,000 tons of concentrates. Design objectives were to collaboratively treat complex multi-metal raw materials, to recycle valuable elements
such as antimony, silver, zinc, copper, bismuth, and sulfur in addition to producing
electrical lead, and to develop a complete set of key processes and equipment for
collaboratively smelting lead–antimony and silver. The plant was commissioned in
2016.
Compared with the existing lead-related process, the project has the following
features:
CSCC Process—The First Set of Side Blown Triplex Furnace Involving
Lead Oxygen Enrichment in the World
Continuous production of three metallurgical furnaces has been tried for the first time.
Continuous production has always been a development direction for metallurgical
workers, which is not only beneficial to the collection and utilization of residual heat
of high-temperature flue gas in metallurgical furnaces, but also greatly reduces the
labor intensity.
By means of cold model testing and numerical simulation, the basic laws of
momentum transfer, i.e. heat transfer and mass transfer in bubbling combustion
conditions in the molten pool are investigated.
The structure and material of the three furnaces were innovated and transformed
into design, which greatly improved the stability and service life of the furnace in
production.
For the first time, three furnaces were used in a linear configuration, and the
liquid slag could be self-flowing by using the height difference. In order to meet the
environmental standards for disposing waste slag, the fuming furnace is designed
with a choice for both continuous slag discharge and intermittent slag discharge.
Anodic Mud Treatment and Integration of Rare and Precious Metals
The anodic mud with high antimony and low silver lead concentrations is treated
by oxygen-enriched side blowing smelting process. The whole process is clean and
efficient, and valuable metals such as lead, copper, gold, silver, antimony, bismuth,
and tellurium are effectively recovered. The recovery rate of the main metals such as
gold and silver is more than or equal to 99% and that of antimony is more than 95%.