08YusukeUrata_29Sept2012

8/13/2019 08YusukeUrata_29Sept2012

1/12

Advanced technologies of CDQ plantAdvanced technologies of CDQ plant

TATA Steel CDQTATA Steel CDQ

Minerals, Metals, Metallurgy and MaterialsMinerals, Metals, Metallurgy and Materials ExhibitionExhibition

September 29, 2012, Delhi, IndiaSeptember 29, 2012, Delhi, India

Copyright (C) 2012 NIPPON STEEL ENGINEERING CO., LTD. All right reserved.

Nippon Steel

Engineering


2/12

ContentContent

The process outline of CDQThe process outline of CDQ

Advanced technologiesAdvanced technologies

Supply recordsSupply records



3/12

Crane

Charging Facility

Primary

Pre-

ChamberElectric Power

1000

980 The steam isused for

The process outline of CDQ

Bucket Dischargingfacility

Sub

Economizer

Blower

Secondary

Dust Catcher

Dust catcherCoolingChamberEx. 100t/h CDQ

18MW

130

Cooled Coke200Copyright (C) 2012 NIPPON STEEL ENGINEERING CO., LTD. All right reserved.


4/12

duction/b

attery

ton-coke/year)

Technology development history

Range of our CDQ capacity 56t/h ~ 280t/h* Plots are delivery records of our CDQ

Max 280t/h

56t/h

(1976)

Worlds largest

Cokepr

(millio

CDQ Capacity (t/h)Provide the best CDQ suited to the coke oven production.Provide the best CDQ suited to the coke oven production.

Our CDQ meritsOur CDQ merits :: CompactCompact

Reduction of initial costReduction of initial cost

Reduction of operation costReduction of operation cost

280t/h (2009)



5/12

Advanced technologies

Technological problemsand their solutions.

Coke through put is increased.

Gas velocity is increasedGas velocity is increased

Boiler

Cooling gas volume is also increased.

Coke is floated.Coke is floated.

Gas flue is blocked.Gas flue is blocked.

Pressure drop of coolingPressure drop of cooling

gas is increased.gas is increased.

Shut down.Shut down.



6/12

To avoid coke floating


Gas flow analysis by

3-D Simulation model

Coke floating problemCoke floating problem has been solvedhas been solved

Comprehension of gas and dustComprehension of gas and dust

flowflow

Optimization of gas flow byOptimization of gas flow by

improvement of gas flue shapeimprovement of gas flue shape



7/12

Problems on the scale-up, and contents of the development

Coke through put is increased.

Advanced technologies of NSEC

Boiler

Temp. of dischargingTemp. of discharging

coke is higher.coke is higher.

Coke cooling time isCoke cooling time is

uneven.uneven.Coke does not getCoke does not get

cold easily.cold easily.

Copyright (C) 2012 NIPPON STEEL ENGINEERING CO., LTD.All right reserved.

Coke descending velocityCoke descending velocity

is uneven.is uneven.


8/12

To avoid uneven coke descending

Test plant is

By small scale chamber model experimentBy small scale chamber model experiment

Comprehension of coke descendingComprehension of coke descending

behavior in the chamber.behavior in the chamber.

Optimization of coke flow byOptimization of coke flow by

improvement of chamber shape.improvement of chamber shape.

Uneven coke descendin roblemUneven coke descendin roblem

Advanced technologies of NSEC

Full-sized test plant

cons ruc e

in Kitakyushucity, Japan.

By full sized model experimentBy full sized model experiment

Confirmation of operation withoutConfirmation of operation without

coke floating and uneven coke descending.coke floating and uneven coke descending.

has been solvedhas been solved



9/12

Charging facilityCharging facilityeffcient cooling

Heat recovery boilerHeat recovery boilerLow abrasion


SubSub EconomizerEconomizerDecrease the gas

consumptionDischarging deviceDischarging device continuously

discharging

u cyc oneu cyc oneincrease dust

collecting

Copyright (C) 2012 NIPPON STEELENGINEERING CO., LTD. All right reserved.


10/12

K o r e aK o r e a

ChinaChina

GermanyGermany

J a p a nJ a p a n

NSECs Record (units)

Japan 24

Abroad 76

Total 100

NSECs Supply records - Strong market sharing in world

supply records

BrazilBrazil

Supply record of 10 unitsNote:

I n d i aI n d i a

BE3: Our chinese joint company

to expand CDQ business in China.

Installation of

NSECs CDQ in India

JSW Ltd. : 120t/h 4units

(Under construction)

TATA Steel Ltd. : 135t/h 1unit

(Operation start : August, 2011)


11/12

Nippon Steel Engineering has

Summary

Nippon Steel Engineering has

a wide range of CDQ capacitya wide range of CDQ capacity ((280t/h)280t/h)..


supplied a great number of CDQsupplied a great number of CDQ (100units)(100units)all over the world .all over the world .

Nippon Steel Engineering adapt

advanced technologiesadvanced technologies of CDQ plant.


12/12

The world

largest CDQconstructed by

Nippon Steel

Thank you for your kind attention.Thank you for your kind attention.


08YusukeUrata_29Sept2012

Documents

Transcript of 08YusukeUrata_29Sept2012