NOVOLIPETSK IRON & STEEL, Russia

Construction of new Blast Furnace 72011

Blast Furnace Constructions, Rebuilds & Relines

Introduction

With the goal to increase the production capac-ity of their Lipetsk plant by a third and to sub-stantially reduce its environmental impact, OAO “Novolipetskij Metallurgicheskij Kombinat” (NLMK Novolipetsk Iron & Steel) launched an ambitious expansion project, including among others the construction of a new blast furnace.

Blast furnace No.7, also called “Rossiyanka”, is the first completely new blast furnace built on Russian soil since 1986. It makes largely use of imported state-of-the-art technologies.

Project Realisation

NLMK has been confering with Paul Wurth over a longer period of consideration on the strategy for developing the ironmaking assets. Finally, prefer-ence was given to the construction of a brand new BF plant for an annual production of 3.4 mil-lion t of hot metal.

In August 2007, Paul Wurth was contracted to provide the blast furnace design, key equipment supply and important sub-plants for the new BF7, sized at 13.1m hearth diameter. Paul Wurth also provided advisory services for construction and erection work, which often took place in extreme weather conditions. Finally, Paul Wurth performed supervision of commissioning of the concerned production units.

At the end of August 2011, the new BF was started up and entered the hot testing phase. After successful commissioning, ramp-up and the furnace passing all contractual performance tests, the new facility, incorporating Paul Wurth’s most advanced technologies, fully meets the most demanding requirements in terms of product quality, operation efficiency, energy consumption and environmental friendliness. The latter prior-ity is mainly achieved thanks to high-efficiency gas and dust removal systems, closed-circuit water circulation, recycling of BF gas for use by the on-site cogeneration plant, which is part of the blast furnace facility.

The global project, relying on innovative solutions from both Russian and foreign engineers, is a benchmark for efficient international cooperation in recent years.

Project Description

Russian President Dmitri Medvedev welcomed by NLMK chairman Vladimir Lisin (20 January 2010)

Erection of blast furnace shell

Project Data

Project overall duration (planned sequence) : 30 months

Blow-in date : 30 August 2011

Blast Furnace Data

Annual production : 3.4 Mio tHM

Daily production (avg.) : 9 450 tHM

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Services

` Technology and concept engineering

` Basic engineering of the blast furnace plant

` Detail engineering of imported items and critical areas

` Advisory services for construction and erection

` Personnel training & operational assistance

` Commissioning supervision

Key Component Supplies

` Blast furnace proper, including shell and tower structure, all refractory lining and cooling elements (copper & cast iron staves)

` Bustle pipe, cardan-type tuyere stocks, tuyeres & tuyere coolers

` Two-hopper Bell Less Top® charging system (70m3 hopper volume)

` TMT probes*: stockline recorders, above and in-burden gas & temperature probes, scanning probe, radar profilemeter

` Charging model & SACHEM® expert system

` Bleeder valves, equalising and relief valves

` Cold blast generation plant (blower)

` Top gas cleaning plant with axial cyclone and annular gap scrubber

` TMT full-hydraulic casthouse equipment*, including taphole drills, clay guns and main runner cover manipulators

` Electric & hydraulic equipment, instrumentation, control & automation systems for all plant units

Aiming at increasing the energy efficiency, the plant is extended by the installation of a top gas energy recovery turbine (TRT) which will gener-ate electricity corresponding to one third of the energy requirements for cold blast generation. Furthermore, NLMK will apply the PCI technology and has contracted Paul Wurth for a complete, combined plant including coal grinding and drying as well as pulverised coal injection for Blast Fur-naces No. 6 and No. 7. Coal grinding will be per-formed by vertical roller mills. The coal injection accuracy will be ensured by Paul Wurth‘s proven dynamic distribution technique.

Paul Wurth’s Scope of Supply

New BF7 complex

Castfloor with TMT equipment*

Hearth diameter : 13.1 m

Number of tuyeres : 36

Number of tapholes : 4

BF inner volume : 4 185 m3

BF working volume : 3 561 m3

PCI (design capacity) : 180 kg / tHM

International presence:Brazil, Chile, Czech Republic, Germany, India, Italy, Japan, Korea, Mexico, P.R. China, Russia, South Africa, Taiwan, Ukraine, U.S.A., Vietnam

© Copyright 2011-2015 Paul Wurth S.A. – all rights reserved

Non Contractual Data: Paul Wurth believes that the data contained in this folder are correct and accurate, but cannot guarantee same or better performances for any specific site without a detailed quote. Patents and Patents pending. — Paul Wurth equipment and processes are protected in many countries by patents.

Paul Wurth, the Paul Wurth Logo, Bell Less Top and BLT are trademarks of Paul Wurth S.A. and may be registered in your jurisdiction. Sachem is a trademark of ArcelorMittal and is used under licence.

VCA**CER

TIFIED SAFETY SYSTEM

VINCOTTE

ISO 9001ISO 14001

BUREAU VERITASCertification

Technical Highlights

Paul Wurth S.A.32, rue d’AlsaceL-1122 LuxembourgPhone: (+352) 4970-1Fax: (+352) 4970-2209paulwurth@paulwurth.comwww.paulwurth.com

* TMT – Tapping Measuring Technology, a joint company of Dango & Dienenthal and Paul Wurth.

Bell Less Top ®

Control room Pulverised coal injection

TMT probes* Gas cleaning plant

Blower station