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Metinvest Group will invest over USD 92 million in the upgrading of
the fourth blast furnace at AZOVSTAL IRON & STEEL WORKS.
Thanks to capital overhaul of the second grade using sophisticated
technologies the company intends to increase BF performance by quarter
up to 1.1 million tonne of iron per year in case of man induced impact
reduction.
Environmental protection equipment will be fully reconstructed to
improve ecology.
Stringent requirements of the European environmental standards will
be followed up in the BF modernization project. Treatment facilities of
skip pit, bell-less top and BFG cleaning are intended to be modernized.
More cardinally modernization will be focused on cast house
aspiration systems. Bag filter with replacement of air pipes, valves and
exhausters will be mounted instead of the existing electrostatic
precipitator.
After new system commissioning efficiency of flue gas purification
from dust, including fine dust, will increase up to 99%. The guaranteed
emissions level will be below 50 mgm3 as required by Ukrainian
legislation.
A number of technological innovations will be introduced at BF-4.
Hearth and bottom will be made of graphite and microporous carbon blocks
with ceramic cup. Such design will allow reducing heat losses and coke
consumption and interrepair times will be increased from current 10 to
12 years till 15 to 20 years.
State of the art castable refractory will be applied as iron and
slag runners lining for maximum separation of melting products. Runners
will be covered that allows eliminating dust and harmful sub-stances
emissions. Cast houses will be expanded and double-level.
Instrumentation and automation, as well as process control system
will be upgraded using contemporary solutions.
BF capital overhaul will last 120 days. It will be commenced in
June 2014. Currently, tenders and contractor selection are in progress.
Contracts are being concluded with the equipment suppliers.
Mr Enver Tskitishvili director general of PJSC AZOVSTAL IRON &
STEEL WORKS said that "Crisis in the metallurgy is not a ground to
freeze development projects by Metinvest. Assets are being modernized.
Next year upgrading of the fourth blast furnace will be the key
challenge for PJSC "AZOVSTAL IRON & STEEL WORKS."
Mr Tskitishvili said that “We will increase furnace performance
without additional impact on Mariupol ecology. In fact, new cleaning
systems will allow total utilization of flue gases.”
Source: Strategic Research Institute |
