A steam dryer system for concentrate was introduced into Guixi Smeltery in 1999.After the third-stage transformation was completed in 2002,the throughput of flash furnace was improved and the throughput of the dryer system was increased from 50 t/h to 70 t/h.
The high concentration SO_2 off-gas coming from nickel flash furnace and copper synthesis furnace mix with low concentration SO_2 off-gas coming from electric furnace and slag-cleaning electric furnace in a mixing chamber,and mixed gas are distributed by piping network into four sulphuric acid plants for balancing off-gases among sulphuric acid systems and stabilization of sulphuric acid production.
The mineralogy of mattes from Western Mining Corporation Limited's new nickel flash furnace at Kalgoorlie, Western Australia, are dominated by pentlandite, heazlewoodite and awaruite (Ni-Fe alloy).
In comparison to products from the old flash furnace, which had separate slag cleaning electric furnaces, these new mattes contain much larger quantities of alloy.
The large alloy content results from the incorporation of the slag-cleaning electrodes and the addition of coke to the flash furnace, which produce the strong reducing conditions necessary for significant alloy growth.
The flash furnace reactions for pyrite and chalcopyrite can be observed by reflected light microscopy.
The trajectories and distribution of particles in a turbulent axisymmetric gas jet injected into a flash furnace shaft
Simulation of moving boundary of the reaction shaft in a flash smelting furnace
As to solve the online monitoring of the inner temperature and freezing profile of the reaction shaft of flash smelting furnace, simulation of the wall in the reaction shaft in a flash smelting furnace was made through numerical computation.
Measurements of oxygen pressure in a copper flash smelting furnace by an EMF method
Oxygen pressures in a copper flash smelting furnace were measured by means of the following galvanic cell: Fe, FeO/ZrO2 + MgO/barO in slag or matte.
Reaction mechanism in a copper flash smelting furnace
Four mineral sulfides typically found in the feed stock of a commercial nickel flash smelter, namely pyrite, violarite, pyrrhotite and pentlandite, were isolated from a primary and a supergene ore sample using magnetic separation.
Process mineralogy of suspended particles from a simulated commercial flash smelter
The main outcome of the study was the development of an experimentally validated mathematical model of the flash smelter providing a new powerful design tool.
The reaction shaft is the heart of a flash smelter.
Current knowledge of the combustion of concentrate and ancillary fuels (coal, oil, and gas) in flash smelter shafts comes from laboratory studies, plant measurements, and physical and mathematical modeling.