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Blast Furnace Cooling Systems
Ironmaking
Efficient cooling is required to balance the thermal load and associated wear of the inner lining of the furnace, and to protect the shell and their cooling ele-ments. Paul Wurth acquired, during decades of blast furnace design, a unique know-how in blast furnace cooling. Our system operates on more than 90 blast furnace installations world-wide. We offer in combination with our cop-per, steel and cast iron staves state-of-the-art cooling conditions for your blast furnace installation. Paul Wurth strives to optimize the cooling systems in order to reduce investment and running costs, while ensuring the necessary cooling efficiency and availability of the cooling elements and circuits.
The cooling systems of a blast furnace play a key role in blast furnace campaign life and therefore operat-ing costs.
Combined Closed Loop Cooling Circuits
are an economic, but still efficient, reliable and safe solution. The cooling water is used to cool serially different blocks of cooling elements, still respecting the operation requirements of the individual cooling elements. The total flow rate is consider-ably reduced while temperature difference of the cooling water is still in an acceptable range and the cooling tower operates more efficiently.
Semi-Closed or Open Loop Cooling Circuits orEvaporation Cooling Circuit
can also be supplied as an option and by customer request in accordance with site conditions. This is particularly ideal for minimum cost upgrades at existing plants.
Closed Loop Cooling Circuits
Paul Wurth normally designs cooling sys-tems with two or three nitrogen pres-surized closed loop water circuits with forced recirculation. The advantages of such a system, as compared to an open loop cooling circuit are:
y Circuit can be operated with treat-ed, softened water.
y No corrosion, fouling and clogging of pipes and cooling elements.
y Low cost for chemical additives. y Low water consumption. y No contact with oxygen of ambient
air. y Very sensitive leakage detection is
possible. y Increase of the evaporation tem-
perature of the cooling water due to operation under adjustable nitrogen pressure. (Example: p=8 bar, Tevap = 170° C).
y Low electrical power consumption, as only the pressure drop is to be covered by the pumps; the differen-tial height is not to be considered.
y Easy flow adjustment and control for the different cooling elements.
y Low maintenance costs. y Longer life time of circuit equipment
and cooling elements resulting in high availability of and therefore high productivity.
Paul Wurth Expertise
Blast Furnace Cooling Systems
Unique know-how and close relationship to Blast Furnace operators allow us to offer all services up to turn-key installations.We study and implement improvement on the cooling circuit capacity and/or convert open loop cooling to closed loop cooling.
Our lengthy experience enables us to control and optimize the thermal load of the circuits. Studies and comparisons of different blast furnace types, sizes and operation modes are our specific know-how used to engineer the cooling of the different blast furnace zones.
This, in combination with expert project management and dedication to excellence, ensure fast project completion and rapid start-up.
Ironmaking
Paul Wurth is using the latest generation of plant design solution named AVEVA PLANT™.
It improves the quality and accessibility of critical information, enabling Paul Wurth to make more accurate and precise decision, reducing time, project cost and minimize risk through:
` Improved planning and project control ` Effective information management and workflow
` Efficient data and document management ` Efficient Construction Management ` Accelerated and improved project handover
The Paul Wurth Group is today one of the world leaders in the design and supply of complete plants, systems and processes as well as specialised mechanical equipment for
� the iron & steel industry: Blast Furnaces & Auxiliary PlantsCoke Making PlantsAgglomeration Plants Direct Reduction PlantsEnvironmental Protection, Recycling & Energy-Saving Technologies
� other industries:Systems & Equipment for Non-Ferrous Pyrometallurgy, Electrometallurgy & Residue TreatmentIntralogistics Solutions for Heavy LoadsEngineering & Project Management for Civil Construction and Infrastructure Projects
Feasibility Studies – Conceptual, Basic and Detail Engineering – Project Management – Plant and Components Supply – Turnkey Projects – Assistance in Plant Assembly and Commissioning – Technology and Operations Consultancy – On-site and Remote Operational Assistance – After-sales Services
Engineering & Technology worldwide
Paul Wurth S.A.32, rue d’AlsaceL-1122 LuxembourgPhone: (+352) [email protected]
Group members:
EUROPE
Paul Wurth Italia S.p.A.Genova, ITALYPhone: (+39) 010 640 [email protected]
Paul WurthRefractory & Engineering GmbHMainz-Kastel, GERMANYPhone: (+49) 6134 606 [email protected]
Paul Wurth Umwelttechnik GmbHEssen, GERMANYPhone: (+49) 201 [email protected]
Paul Wurth, a.s.Ostrava, CZECH REPUBLICPhone: (+420) 595 155 [email protected]
Paul WurthMoscow Representation Offi ceMoscow, RUSSIAPhone: (+7) 495 721 [email protected]
Paul Wurth KovrovKovrov, Vladimir region, RUSSIAPhone: (+7) 49232 [email protected]
Paul WurthUkraine Representation Offi ceMariupol, UKRAINEPhone: (+380) 629 41 18 [email protected]
Paul Wurth International Site ServicesLuxembourg, LUXEMBOURGPhone: (+352) 4970 [email protected]
CTI Systems S.A.Lentzweiler, LUXEMBOURGPhone: (+352) 2685 [email protected] • www.ctisystems.com
Joint company ofDango & Dienenthal and Paul Wurth:
TMT - Tapping Measuring TechnologySiegen, GERMANYPhone: (+49) 271 4014 0
Luxembourg, LUXEMBOURGPhone: (+352) 261920 [email protected] • www.tmt.com
AMERICAS
Paul Wurth Inc.Valparaiso, Indiana, USAPhone: (+1) 219 756 [email protected]
Paul Wurth do BrasilBelo Horizonte, M.G., BRAZILPhone: (+55) 31 3228 [email protected]
Paul Wurth de Chile LtdaProvidencia, Santiago, CHILEPhone: (+56) 2 470 [email protected]
Paul Wurth de Mexico SA de CVAtizapan, MEXICOPhone: (+52) 55 1106 [email protected]
ASIA
Paul Wurth Metal Technology(Beijing) Co., LtdBeijing, P.R. CHINAPhone: (+86) 10 8405 [email protected]
Beijing Paul Wurth Trading Co., LtdBeijing, P.R. CHINAPhone: (+86) 10 8405 [email protected]
Paul Wurth India Pvt. LtdGurgaon, INDIAPhone: (+91) 124 [email protected]
Paul Wurth International S.A.Taiwan BranchKaohsiung, TAIWANPhone: (+886) 7 33 93 [email protected]
Paul Wurth International S.A.Korea BranchSeoul, KOREAPhone: (+82) 2 553 [email protected]
Paul Wurth Vietnam Co., LtdHo Chi Minh City, VIETNAMPhone: (+84) 8 73 000 [email protected]
Joint company ofIHI Corporation and Paul Wurth:
PAUL WURTH IHI Co., Ltd.Tokyo, JAPANPhone: (+81) 3 6204 [email protected]
AFRICA
Paul Wurth International S.A.South Africa BranchJohannesburg, SOUTH AFRICAPhone: (+27) 11 794 [email protected]
VCA**CER
TIFIED SAFETY SYSTEM
VINCOTTE
ISO 9001ISO 14001
BUREAU VERITASCertification
N° BXL 05000141 / N° BEL BXL 153669
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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.
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