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5/04/13 1COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
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de
Ma
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au
65M
ore
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Latest developments in coke oven
inspection by endoscopy
J. DELINCHANT, D. STREIFF and J.P. GAILLET
Centre de Pyrolyse de Marienau, Forbach, France
5/04/13 2COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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de
Ma
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au
65M
ore
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Milestones
1990: Design and implementation of rigid water-cooled endoscopes up to 9.5 m long
1992: First generation of Videofil® machine
2006: Last generation of Videofil ® machine fully automatic
2010: Robot for regenerator sole flue inspection
5/04/13 3COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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lyse
de
Ma
rien
au
65M
ore
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an
Videofil® machine principle
View ing head
Heating flue
Control unit
O ven cham ber
2 2 ° C1 3 5 °
5/04/13 4COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
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At
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Fixed
part
85°/48°/35°
105°
Fibrous casing
Camera
Rotat
ing pa
rt
Rotation motor
Focus motorMultiplexing cardRotary encoder
Lens
Iris / Lens / Filter
LATERAL VIEW AXIAL VIEW
High temperature viewing heads
5/04/13 5COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
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At
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Led
LATERAL VIEW WITH ROTATION
Encoder
Rotationmotor
Focus motor
Camera
Lens & iris
34°
Le
d
AXIAL VIEWWITHOUT ROTATION
Microcontrollerand signal multiplexer
Annular light
Low temperature viewing heads
5/04/13 6COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
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an
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At
Ce
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3 minutes at 1300°C
60
120
180
240
300
360
1000 1100 1200 1300 1400
Oven temperature (°C)
Re
sid
en
ce t
ime
(s)
non burning flue
burning flue
Residence time
5/04/13 7COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
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u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
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lop
me
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At
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Main characteristics
Useful length: 10 m Maximum diameter: 60 mm Interchangeable objective lenses for axial, lateral or
retrograde view of the target 360° rotation of viewing head CCD color or B&W camera Automatic focusing Superimposing of depth and direction of view Working temperature: from 0°C to 1400°C Residence time: 3 minutes at 1300°C Interval time between 2 inspections: 5 to 10 minutes
5/04/13 8COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
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lop
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nt
At
Ce
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Ma
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au
65M
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Applications
Assessment of refractory damage Oven roof Heating flues Corbel area Regenerator tops
Definition of the extent of the repair work Selection of the most appropriate repair technique Assistance to gunning or ceramic welding operation
Gunning from inside the flue Ceramic welding in the middle of the ovens
Evaluation of the repair efficiency
5/04/13 9COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
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At
Ce
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65M
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Some examples (1/2)
5/04/13 10COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
yro
lyse
de
Ma
rien
au
65M
ore
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an
Some examples (2/2)
5/04/13 11COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
yro
lyse
de
Ma
rien
au
65M
ore
th
an
Heating flue inspection
5/04/13 12COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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de
Ma
rien
au
65M
ore
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an
Scissor flue inspection
5/04/13 13COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
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u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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de
Ma
rien
au
65M
ore
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Robot for regenerator inspection
Objectives To rapidly assess the regenerator conditions To define maintenance work and priorities To control the efficiency of the maintenance work
Inspection of the regenerator sole flue and bottom checker bricks From the waste gas box openings With a robot
5/04/13 14COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
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me
nt
At
Ce
ntr
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de
Ma
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au
65M
ore
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Robot characteristics (1/2)
Two cameras One with an axial view The other with a lateral view and a
rotation mechanism
Additional light around the camera heads
Elecronic cards for multiplexing
Different carriers to fit with the different flue dimensions
2 cameras
5/04/13 15COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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de
Ma
rien
au
65M
ore
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Robot characteristics (2/2)
Automatic or manual moving inside the flue through a semi-rigid cable
Air blowing Trolley including
Enroller Motorization Air filter Distance counter
Visu-case Superimposing of temperature and
location of the robot on the image
5/04/13 16COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
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e d
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de
Ma
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65M
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Performances
Dimensions of the robot 8 cm (height) x 8 cm (width) x 35 cm (length)
Insertion length Up to 10 m
Automatic moving Adjustable speed From 0.1 to 0.3 m/s
Black and white microcameras Field of view of 34° x 26°
Automatic focusing Residence time
Up to 5 minutes at 300°C
5/04/13 17COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
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lop
me
nt
At
Ce
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e d
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65M
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Regenerator sole flue and bottom checker bricks
Regenerator sole flue (axial view)
Broken checker bricks (lateral view)
5/04/13 18COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
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u –
All
right
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serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
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lop
me
nt
At
Ce
ntr
e d
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65M
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Regenerator sole flue and bottom checker bricks
Checker bricks partially or fully clogged by deposits
Generally 2 observations are done, the first with the light on, the second with the light off
5/04/13 19COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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de
Ma
rien
au
65M
ore
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Regenerator inspection
5/04/13 20COMA Conference 2013 J.P. GAILLET
© 2
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– C
entr
e de
Pyr
olys
e de
Mar
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u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
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au
65M
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Conclusion
Different instruments are available for coke oven inspection
Videofil® machine is the most used equipment To assess at regular intervals the refractory conditions and
follow its evolution with time To define the type and the extent of the repair work To control the repair work after completion and its efficiency
Robot is used To assess regenerator conditions, dirtying of checker bricks To optimize maintenance planning and cleaning efficiency
Both machines contribute To extend coke oven service life To optimize repair cost
5/04/13 21COMA Conference 2013 J.P. GAILLET
© 2
013
– C
entr
e de
Pyr
olys
e de
Mar
iena
u –
All
right
s re
serv
ed fo
r al
l cou
ntrie
sC
anno
t be
disc
lose
d, u
sed
or r
epro
duce
d w
ithou
t prio
r w
ritte
n sp
ecifi
c au
thor
izat
ion
of C
PM
CO
NF
IDE
NT
IAL
– P
rivile
ged
Info
rmat
ion
- C
PM
's p
ropr
ieta
ry in
form
atio
n
Ye
ars
of
Re
sea
rch
an
d D
eve
lop
me
nt
At
Ce
ntr
e d
e P
yro
lyse
de
Ma
rien
au
65M
ore
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an
Acknowledgements
Part of this research leading to these results has received
funding from the European Union Research
Programme of the Research Fund for Coal and Steel,
Research Project, Contract RFCR- CT- 2008-00007
5/04/13 22COMA Conference 2013 J.P. GAILLET
© 2
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