tank furnaces – latest technology · 2008. 4. 25. · tank furnaces – latest technology tank...

20
ASEAN GLASS CONFERENCE 2007 ASEAN GLASS CONFERENCE 2007 Folie Folie 1 02. 02. - 05. 05. October October 2007 2007 Tank Tank furnaces furnaces – latest latest technology technology ASEAN GLASS CONFERENCE 2007 ASEAN GLASS CONFERENCE 2007 Tank Furnaces Tank Furnaces latest technology latest technology presented by Roland Wagenbauer / IWG presented by Roland Wagenbauer / IWG Asean Asean Glass Conference 2007 / Thailand Glass Conference 2007 / Thailand

Upload: others

Post on 28-Mar-2021

2 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 11 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnology

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007

Tank FurnacesTank Furnaces –– latest technologylatest technology

presented by Roland Wagenbauer / IWGpresented by Roland Wagenbauer / IWG

AseanAsean Glass Conference 2007 / ThailandGlass Conference 2007 / Thailand

Page 2: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 22 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyContent of presentationContent of presentation

Content:

History of glass melting furnace building

Glass melting tank furnaces – today

Glass melting tank furnaces – tomorrow

Page 3: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 33 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

Page 4: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 44 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

The history of glass melting furnacebuilding can be divided in five mainhistoric eras:

Page 5: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 55 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

Fritting and melting in pans on wood fires in pre-Christian times

1st era:

Page 6: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 66 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

Glass melting pot furnaces fired with wood from the beginningof our time era until the 17th century

2nd era:

GlassGlass meltingmelting furnacefurnaceaccordingaccording to Agricolato Agricola

Page 7: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 77 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

Glass melting furnaces withgrillage for operations withwood and also partly withhard coal (1600 – 1850)

3rd era:

BoetiusBoetius furnacefurnace –– withwith aa soso--calledcalled half gashalf gas firingfiring

Page 8: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 88 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

Gas fired glass melting pot and tank furnaces, from 1860 untilaround 1960, with generator and gas coke oven

4th era:

Regenerative tank furnace according to Friedrich August SiemensRegenerative tank furnace according to Friedrich August Siemens

Page 9: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 99 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyHistoryHistory

From 1920: first all-electric furnaces in Norway and Sweden

From 1950: introduction of the oil fired glass melting furnaces

From 1960: use of natural gas for glass melting furnaces

From 1990: use of oxygen as energy source for tank furnaces

5th era:

Continuous DevelopmentContinuous Development

Tank furnaces todayTank furnaces today

Page 10: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1010 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

Low energy consumption

Requirements on modern tank furnaces:

High flexibility in terms of pull rate

High glass quality

Low CO2- and NOx- emissions

Low operation / running costs

Long lifetime

Page 11: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1111 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

General Design

Oxy-Fuel Tank Furnace:

Unit Melter type

Heating System

Electric Boosting

Melting and refining part divided by air cooled barrier wall

High efficient oxy-fuel burnerIndividual burner control

Melting areaThermal barrier

Page 12: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1212 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTankTank furnacesfurnaces todaytoday

Oxygen Bubbling

Oxy-Fuel Tank Furnace:

Draining units

permanent or periodically

direct or indirect heated

Page 13: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1313 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

General Design

All-Electric Tank Furnace:

Cold-Top with hexagonal shapeCold-Top with rectangular shape

Electrical Heating3 independent heating levelsTop-electrodesSide wall-electrodesBottom-electrodes (start-electrodes)Single phase-, two phase- or three phase transformer

ElectrodesTin-oxide electrodesMolybdenum electrodes

Page 14: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1414 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

All-Electric Tank Furnace:

Draining unitspermanent or periodicallydirect or indirect heated

Batch ChargingX-Y batch chargerRotating distributor

Advantages of this systemTemperature profile adjustableHigher flexibility concerning pull rateEasier changing of batch composition

Page 15: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1515 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyComparison: OxyComparison: Oxy--FuelFuel All ElectricAll Electric

Oxy-Fuel All ElectricSpecific energyconsumption[kWh/kg glass]

Both technologies in compare:

higher, but dependenton furnace size andbatch composition

lower, but dependenton furnace size andbatch composition

Specific energycosts [€/kg glass]

higher, but dependent onenergy prices [€/kWh]

lower, but dependent onenergy prices [€/kWh]

Investment costs(furnace + filter)

higher lower

Operation costs lower higher

CO2- and NOx higher lower

Page 16: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1616 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyComparison: OxyComparison: Oxy--FuelFuel All ElectricAll Electric

Oxy-Fuel All ElectricLife time 6 – 10 years, depending

on glass typemax. 4-6 years, dependingon glass type

Flexibility pull rate higher flexibility lower flexibility

Glass quality:higher

Increase of pull rate possible with electric boosting difficult

- flexible pull rate- constant pull rate lower

lowerhigher

Changing glass type much easier more difficult

Reconstruction time shorterlonger

Furnace control equal equal

+ other specificcriterias of customers …. ….

Page 17: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1717 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

General Design

Platinum Feeder System:

Platinum tube systemStirrer cell with stirrerDraining nozzleConnecting tubePlunger cell with stirrer-plungerOrifice or outflow nozzle

Stirrer CellReduction of cordsTemperature homogenization

Draining Nozzlepermanent or periodically

Page 18: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1818 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces todayTank furnaces today

Platinum Feeder System:

Plunger CellConditioning of glass temperatureReduction of cords and shear marks

Connecting tubeConditioning of glass temperature

Type of HeatingDirect heatingIndirect heating

Mixture of the different heating systems

Orifice/Outflow NozzleForming of Gobs

Inductive heating

Page 19: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 1919 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnologyTank furnaces tomorrowTank furnaces tomorrow

Microwave – Technology in refining part

Technology of the future:

Iridium as new electrode-materials

New energy-sources ?

Page 20: Tank furnaces – latest technology · 2008. 4. 25. · Tank furnaces – latest technology Tank furnaces today 9General Design ¾Platinum Feeder System: Platinum tube system Stirrer

ASEAN GLASS CONFERENCE 2007ASEAN GLASS CONFERENCE 2007 FolieFolie 2020 02.02. -- 05.05. OctoberOctober 20072007

TankTank furnacesfurnaces –– latestlatest technologytechnology

IWG Ingenieurbüro Wagenbauer

Glasofenbau GmbH

Fürhaupten 35

94227 Zwiesel – Germany

Phone: +49 – 9922 – 8448-0

Fax: +49 – 9922 – 8448-21

E-mail: [email protected]

Website: www.iwg-online.com

ContactContact