Metalloinvest Modernizes Mikhailovsky GOK Pellet Plant
Leading Russian mining and metallurgy company Metalloinvest has modernized the roasting machines of the pelletizing plant at Mikhailovsky GOK named after
Leading Russian mining and metallurgy company Metalloinvest has modernized the roasting machines of the pelletizing plant at Mikhailovsky GOK named after AV Varicheva. The work performed allows more than 2.3 times increase to the production volume of fluxed pellets with basicity from 0.5 to 1.1 units, up to 5.6 million tonnes per year. Metalloinvest invested RUB 533 million in the modernization of three calcining machines.
In the course of modernization, the first and second calcining machines were equipped with modern equipment for feeding, dosing and transporting charge components for the production of highly basic pellets. Limestone weighing machines were replaced with more efficient belt ones. The supply hopper capacity has been expanded from 32 to 49 cubic meters. New pumps of increased power were installed, which made it possible to increase the productivity of the process of supplying limestone to the feed bins from 30 to 100 tonnes per hour. The aspiration system was replaced by cartridge filters, which provide a closed gas cleaning cycle and reduce the burden on the environment. The systems of automatic control of technological equipment have been modernized.
The third roasting machine is additionally equipped with modern weighing machines, which will make it possible to produce pellets in a wide range of basicity from 0.1 to 1.1, depending on the needs of consumers.
An increase in the basicity of the pellets improves their metallurgical properties, which ensures high melting efficiency and a decrease in the slag yield.