PAO Severstal (one of the world's leading vertically integrated
steel and mining companies) scores on the second of the two
sinter plants of Cherepovets steel mill (CHerMK) project
technical re-equipment of pre-treatment of the solid fuel. Event
included in the Federal project "Pure air", which is part of the
national project "Ecology".

the Event is to change the preparation technology of solid fuel
for sinter production, which provides significant environmental
effect. In 2019, the project to change the scheme of preparation of solid fuel has been
implemented on the equipment of the sintering plant No. 2 (AGTS No. 2) and shown to be effective
solution. A similar project the company is implementing in AGTS No. 3.

the Current scheme of grinding solid fuels results in the release fraction
of coke fines fraction of less than 0.5 mm (up to 50 - 60% of the total). This
affects the process of burning solid fuel in the layer of sinter charge, which reduces
the performance of sintering machines and leads to a waste of coke fines.
This, in turn, increases carbon dioxide emissions into the atmosphere.

the Main decisions aimed at reducing silt fraction was the
installation of air classification, the replacement of crushing equipment for
roller crusher.

According to General Director of "Severstal Russian steel"
Evgeny Vinogradov, the effect of the implementation of these activities in AGTS No. 2
has reduced the emissions of carbon monoxide by 7, 764 tons on the results of
equipment for three quarters 2019. The expected effect on reducing
emissions of carbon monoxide in aglofabrika No. 3 is 5 846 tons.
Cost of investororiented - about 340 million rubles.

"environmental Protection is one of our main priorities at all
the production stages. On CHerMK completed air quality
measures to reduce emissions, under draft standards
for maximum permissible emissions and the organization of sanitary-protective zone. The
still, the company continues its efforts to reduce emissions
substances. Currently the company is implementing a Comprehensive plan
measures to reduce emissions of pollutants into the atmospheric air,
adopted in Cherepovets on 2019-2024. He is included in the national project
"Ecology". By the end of 2019 completed six of 15 events
scheduled", - said Evgeny Vinogradov.

the New technology of the solid fuel treatment cost-effective,
because it allows to reduce the volume of solid fuel in the sinter production.
in addition, is improved and the quality of sinter is due to a more stable
temperature sintering.

the Implementation of investororiented will require the installation of a system of air
the classification of the crushed coke fines, installation of four roller coke
crusher, the design and installation of additional conveyor flows
reloading funnels, as well as new bunkers. General designer
in favor of OOO "Severstal-Project" together with "KO VNIIMETMASH" (Kolpino).
Completely the project will be implemented by the end of 2021.

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