Furnaces corrosion / prevention to improve the longevity of campaigns

*
Superstructures

*
Superstructures

Crown flames passages

Lagnieu F2 front wall / concrete wall protection

E² - Trainings Furnace A - Affinage
*
Kamyshin F1 front wall repair
1
0
1
3
0
0
0
3
3
0
0
0
0
0
1
2
1
1
2
1
1
1
0
0
0
Визуальный осмотр со стороны горелочных блоков
1
2
2
2
2
2
2
2
0 - Уже упал, следующий слой видим , already felt down
1 - Коррозия или частично нарушена, но в положении, heavy attack wit missed part
2 - Нестабильный готов упасть., attacked
3 - Замещен silimanite кусок недавно установленной , changed tiles

E² - Trainings Furnace A - Affinage
*
Kamyshin F1 front wall repair with concrete blocks

Infrastructures

Dog house angle bloc not enough air cooling

Extremity angle tank joint glass infiltration

Infrastructures

*
Glass level corrosion, leakage potential ricks
After 6 mouths in case of air cooling breackdonwn

*
Throat angle block corrosion with bad air cooling…..
And glass leakage

Infrastructures

*
Infrastructures

*
Water leack on electrode water jacket during 2 years without repair

E² - Trainings Furnace A - Affinage
*
Bubbler block corroded, important glass infiltration

*

Regenerateurs

*
Checkers corrosion…….

*
…and 3m checkers crushing, by-pass realization

Flames passage on regenerator’s crowns (checkers frequently locked )

Important raw materials deposits…… batch charger Mechanic problems

Tank air cooling preconizations
Impact point : ~100 mm from top tank
Air quantity : ≥25 m/s et 1000 l/s/ml
When ? From heating up starting, only vertically cracks formation on tank (not horizontally cracks who increasing corrosion ).

Tank air cooling nozzles

*
Area N°1 : 500pa
Area N°2 :
1000pa
Area N°3 :
250pa
Area N°4 : 250pa
Throat ceiling
300pa Air cooling
pressure measurement on nozzles example
In red color insufficient air cooling quantity (≥700 Pa)

E² - Trainings Furnace A - Affinage
*
Bad nozzles shape
0 pa
0 pa
250 pa

*
300 pa
0 pa
0 pa
Bad nozzles shape in throat

Power point template lanscape
Corrosion Speed evolution with temperature :

*
Throat angle blocks after 11 years campaign with efficient air cooling
(average air pressure nozzles : 1000 Pa)

Saint-Gobain Emballage
E² - Trainings Furnace A - Affinage
E² - Trainings Furnace A - Affinage
Throat angle blocks after 5 years campaign with insufficient air cooling