HYUNDAI STEEL, South Korea

Construction of new Blast Furnaces 1, 2 & 3 2010 / 2013

Blast Furnace Constructions, Rebuilds & Relines Project Description

Introduction

In the years 2006-2007, the South Korean steelmaker Hyundai Steel (HSC), which is part of the Hyundai Motor Group, decided to invest in the construction of a new integrated steel- works in Dangjin (120 km southwest of Seoul), comprising three large blast furnaces and thus complementing the existing EAF steelmaking route. The aim of the project was to make high- grade products mainly for automotive applica- tions. All together, the electric arc furnaces and blast furnaces allow HSC to produce up to 24 million tons of steel per year. The high- productivity units integrate the latest envi- ronmentally friendly technologies, reflecting the eco-friendly management philosophy of Hyundai Steel. Hyundai Steel’s new integrated steel works in Dangjin

Project Realisation

In April 2007, the Paul Wurth Group has been contracted to provide the plant design and the key equipment supply for the two nearly identi- cal blast furnaces N°1 and N°2, designed for a production of 4.08 million tpa of hot metal each.The very challenging project schedule was met over the entire design and construc- tion period. Blow-in of BF1 was completed in January 2010. The start-up of BF2 followed in November 2010. Commissioning a total an- nual production capacity of 8 million tHM has never before been achieved within the space of a year at a single plant.

Shortly after the successful start-up of these furnaces, Paul Wurth was entrusted in March Hot blast stoves 2011 with a similar supply scope for the con- struction of the third blast furnace. Project Data Again the project schedule for BF3 was very tight and required a perfect coordination. Only Blow-in dates : 5 January 2010 (BF1) three years after the blow-in of the first two 23 November 2010 (BF2) 13 September 2013 (BF3) blast furnaces, HSC completed its ambitious integrated steelplant project by putting BF3 Blast Furnace Data (per BF) in operation on 13 September 2013. Thanks to the exemplary team work between Hyun- Annual production : 4.08 Mio tHM (BF1 & BF2) dai Steel and Paul Wurth, this project turned 4.28 Mio tHM (BF3) out highly successful and can be considered Daily production (avg.) : 11 650 tHM (BF1 & BF2) a key reference: The 12-million-ton project in 12 230 tHM (BF3) Dangjin was not only brought to completion as planned, but even ahead of schedule! Paul Wurth’s Scope of Supply

Services

``Technology and concept engineering

``Basic engineering of the blast furnace plant

``Detail engineering of critical areas

``Erection supervision

``Training & operational assistance

``Commissioning

Key Component Supplies

``Bell Less Top® charging systems

``Bleeder valves, equalising and relief valves

``TMT probes*

Castfloor ``Hot blast stove plants with external combustion chamber

``Gas cleaning plants with axial cyclones and annular gap scrubbers

``Pulverised coal injection systems with individual flow rate control

``TMT casthouse equipment*

``INBA® slag granulation and dewatering plants with cold water system and full condensation

``Process models

The blast furnace proper is a free-standing type with a surrounding access and support tower. Each blast furnace has 4 tapholes serviced by TMT high-performance clayguns and taphole openers*. Automatic clay mass BF 2 inauguration ceremony preparation and loading systems fill the clayguns. TMT drill rod changing equipment* services the taphole openers. The cast floors are of flat design with all safety features. Hearth diameter : 14.8 m 3x3 external combustion chamber stoves gen- Number of tuyeres : 42 erate the hot blast for each BF. The furnaces’ high performance operation is enhanced by Number of tapholes : 4 pulverised coal injection. Paul Wurth’s indi- BF inner volume : 5 250 m3 vidual flow control system provides the nec- BF working volume : 4 525 m3 essary coal distribution accuracy over the Hot blast temperature : 1280 °C (max.) tuyeres with deviations of less than +/- 1%. PCI : 180 kg / tHM (normal) 250 kg / tHM (max.) Bell Less Top ® TMT casthouse equipment* Gas cleaning plant

INBA ® – slag granulation plant Pulverised coal injection Technical Highlights

Paul Wurth S.A. International presence: 32, rue d’Alsace Brazil, Chile, Czech Republic, Germany, India, Italy, L-1122 Luxembourg Japan, Korea, Mexico, P.R. China, Russia, South Phone: (+352) 4970-1 Africa, Taiwan, Ukraine, U.S.A., Vietnam Fax: (+352) 4970-2209 [email protected] www.paulwurth.com

AFE D S TY IE SY IF S T T ISO 9001 R E M E ISO 14001 C VCA** * TMT – Tapping Measuring Technology, a joint BUREAU VERITAS Certification VINCOTTE company of Dango & Dienenthal and Paul Wurth.

© Copyright 2010-2015 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, BLT and INBA are trademarks of Paul Wurth S.A. and may be registered in your jurisdiction.