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Iron ore

Pellet

Limestone

Coke

Sinteredore

Blast furnace(BF)

Hot metal

Basic oxygen furnace(BOF)

Scrap

Iron making

Electric arc furnace(EAF)

Steel making Continuous casting

Hotdirectrolling(HDR)

Billet

Bloom

Slab

Reheating furnaceSteel casting

Rolling

Seamless pipe mill

Seamless pip

Welded pipe mill

Welded pipeButt welded pipe

Cold rolling tandem mill

Cold rolled coiland sheet(also for plating)

Hot strip mill

Hot rolled coiland sheet

Main products

Plate mill

Plate

Wire rod mill

Wire rod

Section mill BarShapeSheet pileRail

“azbil” Solutions for Steel Plant

Integrated Open DCS

Field Instrument

& Control Valves

2

A

Blast Furnace

B

Entrance（ Cooling water）

Exit（ Cooling water）

Arithmetic and Control Unit（ DCS or Sequencer ）

Damaged pipe, Cooling water leakage ⇒Steam Explosion

Most Important Monitor Point

ALARM（ Leakage detected)A － B （ Flow rate difference) ＜ Target （ Nor

mal ）A － B （ Flow rate difference) ＞ Target （ Abnormal ）

High accuracy complies with reliable monitoring on cooling water leakage at tuyere!

A Suggestion at Tuyere of Blast Furnace

3

Differential Flow Rate ～ Strict Monitoring Standard～

Since cooling water leakage is very important factor to monitor, very small leakage must strictly be measured.

• A company in Japan Flow rate range: 0-800 L/min Targeted differential

flow rate: A － B ＜３　 L/min Differential flow rate: Below than 0.375% of full scale

• B company in Korea Flow rate range: 0-500 L/min 　 Targeted diffe

rential flow rate: A － B ＜５　 L/min Differential flow rate: below than 1.0% of full scale

*) Accuracy of Electro-magnet Flow meter: ±0.5% of reading

4

Differential Flow Rate Monitoring ～ Field Trial ～

A Company – Result of Field Trial

Targeted Differential Flow Rate: 0.375% of F.S.

Result: 0.275%FS: Fully complied with severe monitoring standard!

A (Entrance)

B（ Exit）

A-B （ DifferntialFlow rate ）

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OperationAnywhere

DOPC

Ex Proof Field Client

Field Client PlantWalker-HV

AMCPM100PM-EX

DGFC DGPL

Integrated HMI

3rd party system

Knowledge PowerAlarm AnalystPREXION, MIBElectric Shift LogUtility Optimization

Yamatake Solution Vision with Yamatake Solution Vision with System PlatformSystem Platform

azbil Open System Platform with a variety of Solution Packages

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For Shift LeaderFor Manufacturing Stuff

For Manufacturing Manager

•Distill data in multiple sources into useful data

•Personalize useful data for each individual meeting their role and responsibility

HistoryQualityLabo

Plan/PerformanceSOP Asset DataShift Log Batch Order/Ship

MIB- For Manufacturing data visualization

• Personalized window presentation images…

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Infrastructure of production

Information systemProcess historical information user can utilize the information at any time and any accuracy depending on their work.

TechnologyControl

QualityControl

FacilityManagement

ProductionControl

OperationManageme

nt

Site performancefor Plant Manager

Production performancefor Production Engineer

Process performancefor Shift Leader

PREXION – For production monitoring

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Alarm Analyst - Correlation analysis

Correlation Analysis;-Easy to build Knowledge-Base alarm & event

model… unique technology

From alarm & event historical logs, Correlation Analysis extracts ;- Event groups consisted of the alarms and the operation

actions in a process upset Propagation path Source origin Nuisance alarms Total counts in Alarm & Event group Information about Alarm & Event group structure Cause & Effect relationship

– Cause of alarm flood or complex operation is estimated using order of events occurrence.

Alarm Analyst R20