STEEL + TECHNOLOGY 01/2020 EXTRACT

24 | NEWS ROUND-UP
RUSSIA
EVRAZ upgrades hot blast stove plant at ZSMK
EVRAZ ZSMK and Paul Wurth have successfully
completed the first phase of a
stepwise technical upgrade of the hot
blast stoves plant at ZSMK’s No. 2 blast
furnace in Novokuznetsk, West Siberia.
In 2014, Paul Wurth had won a tender for
the engineering of a complete new hot
blast generation plant in preparation of this
project. ZSMK’s experts decided in favour
of hot blast stoves with internal combustion
and ceramic burner of Paul Wurth
design and the proposed three-stove operation
concept as the most appropriate
solution for an existing plant in operation.
In 2017, Paul Wurth won the tendering
process for the supply of technological key
components such as the ceramic burners,
checker support systems, ignition burners,
steel and fabric compensators, insulation
bricks, shaped brick rings, material against
stress corrosion cracking and silica bricks
for the stove domes. According to the concept,
the new hot blast stoves were built
and commissioned one by one while the
blast furnace remained in operation. In
May 2019, the new stove was ready for
heating up. It was taken on blast on 20
June 2019.
The next hot blast stove to be replaced
is No. 6. The former installation has already
been demolished. The new stove is scheduled
for commissioning in July 2020. This
will be followed by works on stove No. 5
as the final phase. The overall project is
scheduled to completed by May 2021.
• Paul Wurth
NLMK completes overhaul of basic oxygen furnace
NLMK Lipetsk has relaunched its basic
oxygen furnace No. 2, a steelmaking
facility with a capacity of over 3 million
t/year, following an extensive overhaul.
The replacement of basic oxygen furnace
No. 2 is the first stage in a large-scale overhaul
of NLMK Lipetsk steelmaking operations.
The next stage is scheduled to begin
in May 2020, and will cover the overhaul
of similar-capacity BOF No. 3. The steelmaking
capacity upgrades will enable a
15% increase in the productivity of the
shop to 10 million t/year of steel.
The launch of a new dust and gas collection
system in line with Best Available Techniques
(BATs) was tied in with the relaunch
of the BOF.More efficient gas treatment
equipment will capture 99.9% of dust
emissions, which is in line with best global
practices. The project will also enable the
use of BOF gas for energy generation at a
new recovery cogeneration plant planned
for construction at NLMK Lipetsk.
• NLMK
Severstal Cherepovets places order for sublance systems
Severstal has contracted Danieli Corus
to design and supply three sublance systems
for three 350 t converters at the
Cherepovets BOF shop.
The sublance-based BOF process control
to b e provided by Danieli Corus will contribute
to Severstal’s objective of achieving
lower steel production costs while maintaining
efficiency and quality. Sublance
technology, in combination with a state-ofthe-art
process model, enables shorter
tap-to-tap times, higher hit rates and
reduced consumption of oxygen, energy
and flux materials, while improving operating
conditions.
• Danieli Corus
Converters in the Cherepovets BOF shop
will be equipped with sublance technology
(Picture: Danieli Corus)
STEEL + TECHNOLOGY 2 (2020) No. 1