Technology for the production of granulated magnesium in a salt shell
Granulated magnesium has been widely used as the main desulphurizing reagent for blast-furnace pig iron since the beginning of its industrial production and up to the present day.
In the early 2000s, the Ukrainian technology of pig iron desulphurization became widespread in the world, especially in metallurgical plants in China, due to the use of granulated magnesium in a salt shell.
A distinctive feature of this process is the dispersion of liquid magnesium (or its alloys) and cooling of granules in an air atmosphere without the use of inert gases. This became possible as a result of selecting the appropriate geometric parameters of the centrifugal granulator, the method of feeding metal to the granulator and the composition of the salt melt – spherodisator.
JSC “Titanium Institute” has a modern improved technology for the production of granulated magnesium in a salt shell.
APPLICATION
- Desulfurization of pig iron
- Chemical industry
- Mechanical engineering
- Oil production
ADVANTAGES OF THE TECHNOLOGY
- fire and explosion safety of the technological process and the resulting product – granulated magnesium in a salt shell, due to the fact that it does not contain particles smaller than 0.1 mm and its autoignition temperature is 300-350 °C higher than that of magnesium powders;
- high productivity (up to 8000-10000 tons/year) of the product containing at least 92% magnesium;
- he ability to regulate the particle size distribution in the diameter range from 0.4 to 2.5 mm;
- complete mechanization and automation of processes;
- the ability to obtain granulated magnesium from various types of raw materials – electrolytic magnesium, silicothermic magnesium, magnesium scrap, magnesium alloys, secondary magnesium alloys.
PROJECTS
Completed projects for the full range of granulated magnesium production in various countries around the world, including those commissioned by HUNAN S.R.M.Technology Co., Ltd., China – production of magnesium from magnesium scrap.
More than 30 completed projects for the introduction of cast iron desulphurization technology with granulated magnesium and the execution of design work for the construction of sites at metallurgical enterprises in China and other countries.
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