Exemplary report-rotary-kiln-alignment

GEOSERVEX
Zbigniew Krystowczyk
office:
Kosciuszki 27/19A
85-079 Bydgoszcz, POLAND
tel: +48 52 345 62 50
fax: +48 52 345 62 55
e-mail: office@geoservex.com.pl
http://www.geoservex.com.pl
EU VAT ID No.:
PL 967-069-26-19
ENGINEERING MEASUREMENTS ENTERPRISE
TECHNICAL REPORT
RESULTS OF DEVIATION MEASUREMENTS
AND GEOMETRY OF ROTARY KILN
August 2016

Page
August 2016 (Hot condition)
Rotary Kiln Inspection
GeoCement
GeoCement
2
Index
1. Cover Page 1
2. Index 2
3. Written Part 3
4. Coordinating System, Symbols and Terms 9
5. Measurement Data 10
6. Axial Deviations in Horizontal Plane 11
7. Axial Deviations in Vertical Plane 12
8. Roller Skewing - Horizontal Plane 13
9. Roller Inclination - Vertical Plane 14
10. Position of Support Rollers 15
11. Tire and Shell Temperature 16
12. Adjustment Program 17
13. Recommendation for Future Thrust Correction 20
14. Diameter of Tires and Rollers 21
15. Roller Mechanical Wear 22
16. Tire Axial Run-out (Wobbling) 23
17. Girth Gear Axial Run-out (Wobbling) 24
18. Girth Gear Radial Run-out 25
19. Thrust Roller Axis 26
20. Roller Frame Inclination 28
21. Roller Shaft Deflection 29
22. Axial Deviations of Drive Train 30
23. Ovality Measurement 33
24. Visual Inspection 40
25. Cross Section Position Diagram 54
26. Shell Profile 55
27. Radial Diagram of Shell Deformation 59
28. Appendix - Mechanical Parameters Report 102

Rotary Kiln Inspection August 2016 (Hot Condition) Page 3
TECHNICAL REPORT FOR ROTARY KILN INSPECTION
I. SCOPE OF WORK:
1. Setting up the surveying bases around the kiln.
2. Measurement of kiln axis deformation in horizontal and vertical plane;
3. Measurement of rollers’ horizontal skewing and rollers’ inclination;
4. Measurement of relative movement;
5. Measurement of rollers’ operating angles;
6. Measurement of shell radial and axial deformation (shell profile);
7. Measurement of supporting rollers’ mechanical wear and radius;
8. Measurement of tires’ and girth gear axial run-out (wobbling);
9. Measurement of tires’ and shell temperatures;
10. Measurement of thrust roller position in reference to kiln axis;
11. General mechanical inspection of drive mesh, shafts condition, lubrication
efficiency, inlet and outlet seal (photo report);
12. Calculation of deformations of rollers’ axis and kiln inclination;
13. Calculation of under-tire clearance;
14. Preparation of 3D model of the kiln shell and its deformation;
15. Shelltest - ovality measurement;
16. Drive train measurement;
17. Recalculation of kiln mechanical parameters;
18. Presentation and submission to the Client the complete measurement report.
II. SURVEY OF THE ROTARY KILN
1. All measurements were taken by Geoservex’s Hot Kiln Alignment Team from
23.08.2016 to 30.08.2016.
2. After all measurement and calculation completion, the technical
documentation was presented to the Plant Representatives and the
recommendation was discussed and agreed.
3. Coordinating system:
 Piers are numbered from inlet to outlet;
 Left and right side of kiln is orientated from inlet to outlet (material
flow).
 Starting point for all measurements is a hatch (manhole) between tire
No. I and tire No. II (see page 9).

III. RESULTS OF MEASUREMENTS
1. Kiln axis
Kiln axis deviations in horizontal and vertical plane are enormous
(presented in table below).
Such significant (critical) misalignment in horizontal and vertical plane
requires adjustment which is shown on pages 17 ÷ 19. This adjustment could
be performed under a few condition which are mentioned in recommendation.
Results of kiln axis deviations in horizontal and vertical planes are shown on
pages 11 ÷ 12.
Under-tire clearances are correct and acceptable almost at all supports
where values of clearance are in tolerance or close to this limit. Under-tire
clearance at inlet support is out of tolerance and equals to 8 mm
(recommended under-tire clearance by most of the kiln producers is 3 ÷ 6
mm in hot condition). However, it must be understood that kiln axis vertical
position is directly related with under-tire clearance value and in case of
sudden temperature change its position is not stable and the clearance value
is also not fixed. Moreover, every change of kiln axis vertical position causes
change in supports load and finally changes load on bearings. Therefore, it is
strongly recommended to keep shell temperature uniform on circumference of
the kiln shell. Values of under-tire clearance are shown on page 12.
Kiln inclination is 2.96% (see page 10).
2. Rollers’ parameters and thrust unit.
Most of rollers’ skewing in horizontal plane are correct (see page 13)
and do not require any adjustment, except of two left rollers at first and
second support. Skewing in horizontal plane at this two rollers is requires
adjustment after resurfacing of running surfaces of those rollers.
Inclination of all rollers is correct (see page 14) and does not require
any adjustment.
Roller operating angles have their designed values (close to 60º - see pages
10 and 12). The tolerance for operating angles given by most kiln producers is
60º +/- 1º 30’.
Mechanical wear takes place for almost rollers, it means that all rollers have
a spool and conical shape (see page 22), except right roller at third support,
where mechanical wear value is maximum 1.0 mm and shape is cylindrical.
Right roller at first support is classified to replacement due to enormous
mechanical wear of running surface.
The running surfaces of rollers are not lubricated by dry graphite what is a
bad preventive routine. All rollers running surfaces at all supports should be
cleaned from oil or grease and dust.
Plane/Support I II III IV
Horizontal
Plane
0.0 -14.0 -6.0 0.0
Vertical
Plane
0.0 8.0 4.0 0.0

Position of thrust rollers (upper and lower side) in reference to kiln axis
is presented on pages 26 and 27. Offset of thrust unit (position of unit in
reference to kiln axis) should be confirmed/verified with OEM instruction and
if necessary should be adjusted.
Diameters of rollers and tires are presented in temperature present during the
measurement and shown on page 21.
3. Drive station
Gear radial run-out was measured with use of laser equipment. The girth
gear eccentricity is 2 mm (see page 25) and it is in tolerance.
The root clearance was measured with help of a digital camera under kiln
operation and it shows that the clearance is not regular, which is why the
girth gear and pinion do work with some vibration. The girth gear and pinion
teeth are in poor condition. Root clearance is too small which indicate a pitch
line offset 5 ÷ 7 mm in hot condition (see page 48). Backlash value is too big,
because teeth of pinion are worn out (burrs) and lost their original shape.
Gear wobbling equals to +/- 0.1 mm (see page 24) and is in tolerance
(wobbling tolerance is +/- 2.0 mm).
Position of pinion and gear box in reference to kiln axis is correct (see
pages 30 ÷ 33). Values of deviations are minor and acceptable.
4. Kiln shell
Kiln shell was measured at 43 cross sections. Cross section position
diagram is shown on page 54. Shell profile diagrams are shown on pages 55 ÷
58. In general, the kiln shell is in good shape. Shell eccentricity is rather small
(not exceed 8 mm) and shouldn’t cause any problems with kiln operation,
except for cross sections No. 1 ÷ 2, No. 9 ÷ 11 and No. 25 ÷ 26 where
the eccentricity is greater (8 to 12 mm). Shell local deformations
(deformations of circular shape) are rather insignificant and perfectly
acceptable, except cross section No. 10 and 27 where deformation reach 14
and rise up to 18 mm (tolerance given by most kiln producers for shell
eccentricity is 12 mm and for circular deformations is 15 mm).
The kiln shell was examined for combination of thermo - mechanical
hidden crank formation presence. Mechanical crank formation can be
examined by measurements of roller shaft deflection changes. The
measurements result is shown on page 29. No deflection change exceeds
value of 0.15 mm for eccentricity, which value is normally safe. There is no
indication of hidden mechanical crank formation in shell structure.
The kiln shell has been examined for thermal crank formations presence.
Thermal crank formation can be detected by measuring temperatures on shell
circumference at the tires. Maximum difference in temperatures measured this
way is 75 degrees Celsius (see page 16) which is too low (in this case) to
cause thermal crank formation.
Tires and girth gear wobbling are usually caused by shell crank
formation, but as mentioned above the shell eccentricity is minor and
therefore, tires and gear wobbling values are low (refer to page 23) and in
tolerance (wobbling tolerance is +/- 2.0 mm), except for third tire where
wobbling exceeds tolerance and reaches +/- 3.0 mm.

5. Ovality of heavy kiln shell
All measurements of shell ovality were taken during normal kiln
operation. The expected maximum ovality for a kiln of this diameter (3600
mm) would be 0.46 %. Range value of ovality of all station is 0.10 % - 0.53
% (see pages 36 ÷ 39). Summary graph is presented on page 34. All
measurements was taken on heavy kiln shell with distance approx. 0.8 m
from center of tire. Tires’ and shell temperature was recorded during
measurements. Migration for all tires during the measurement was in rage
6 ÷ 25 mm/rev.
6. Base frames
The results of measurement of base frames' inclination are correct
except for second station where base plate inclination is below 2.95% (refer
to page 28).
IV. ADJUSTMENT OF THE KILN
After completing all measurements, technical documentation was
presented to the Plant Representatives and the adjustment program and
schedule were discussed and agreed. Adjustment could not be performed this
time due to lack of time which is needed for preparation (cleaning of
adjustment bolts, increase a place for shell at the wall (building/steel
construction), preparation for roller replacement etc.).
V. VISUAL INSPECTION
After completing our visual inspection of the rotary kiln we have to admit
that the kiln is working with some vibration on drive station and requires some
seriously corrections to be made.
 Rollers’ housing condition are good. Bearings’ lubrication systems
are complete and they also work correctly.
 Mechanical wear and distance between side surface of tire and stopblocks
(upper/lower side) is improper at inlet support. This gap must be fixed
(reduced).
 Plexiglas of inspection window is cracked at left roller at inlet support.
 Huge edge and enormous mechanical wear of roller surface at first and
second station.
 Upper and lower resistance rollers are worn out . At lower and upper part
of running surface are a visible edges.
 There is some oil leak from upper shafts of left rollers at first, second and
third support.
 Missing stopblock - upper side of tire No. III. Missing stopblock is located
under the tire on the base frame.
 Cracks on chair pad at lower side of tire No. III.
 There is some leakage of grease from pinion housing.

 Pinion and girth gear teeth are worn out, because of improper pitch line.
 Adjustment system is insufficient and could not work properly at inlet and
outlet support. Adjustment bolts are covered by material, dust etc.
 Outlet support is covered by material dropping from planetary coolers.
Whole support, rollers housing, inspection windows, adjustment bolts,
roller running surfaces, base frame are covered by material.
 Poor condition of concrete at second and third support. Cracks in concrete
parts, some part are missing, visible steel reinforcement of concrete.
 Graphite lubricating system is not working. Graphite bars are missing and
rollers are covered by oil and grease.
For all mentioned above please refer to pages 22 and 40 ÷ 53.
VI. RECOMMENDATIONS
Actions to be taken in nearest future:
 Replacement of plexiglas in inspection window at left roller at inlet support
will prevent oil contamination.
 In case of any problem with kiln thrust (kiln pushing uphill or downhill),
please make some correction moves according page 20.
 All running surface of rollers’ and tires should be clean. It is strongly
recommended to keep all running surfaces free from oil or grease.
Actions to be taken to improve the kiln operation:
 Pay attention to tire migration. Monitor under-tire clearance all the time
and get ready to reduce the under-tire clearances by shimming
or replacing the chair pads (supporting plates between tire and kiln shell)
according to OEM instruction, when the migration reach 20 mm per kiln
revolution in hot condition;
 Adjustment of kiln axis must be performed due to critical deviations of kiln
axis in both planes. Before adjustment some actions must be taken:
 replacement of right roller at first support due to huge mechanical
wear (adjustment was calculated for old roller);
 inlet sealing space to be checked;
 gap/space between kiln shell and wall construction of the building
to be increased;
 roller adjustment system at inlet support to be checked.
 Additional adjustment of kiln to improve root clearance (change of pitch
line offset) by shift in rollers at all supports to lift up the kiln.
 Condition of girth gear and pinion teeth should be checked during next
stoppage/shutdown. Burrs should be grinded from side surface of teeth.
Offset of pitch line must be reduced and drive system must be properly
realigned. If this operation will not solve problem with vibration get ready
to make a plan for future reverse of girth gear and pinion.
 Resurfacing of running surface of almost all rollers (except right roller at
third support) should be taken into consideration due to mechanical wear
of this surface.

 Reducing of horizontal skewing of left rollers at first and second support
could be done after grinding surfaces irregularities.
 Resurfacing of running surface of resistance roller should be taken under
consideration due to high edges at lower/upper part of roller.
 Offset of thrust unit (position of unit in reference to kiln axis) should
be confirmed/verified with OEM instruction and if is needed should
be adjusted. This operation can be done after grinding of side surface of
tire and running surface of thrust unit.
 Running surface of rollers and tires must be cleaned from oil. Graphite
bars should be reinstalled.
 Mechanical wear (incorrect distance) between side surface of tires
and retainers (stopblocks) should be corrected at inlet support. Tire thrust
can be reduced by following actions:
 Reducing the relative movement between tire and shell as much
as possible.
 Lubricate the tire face and retainers (stopblocks) with proper
lubricants.
 Increase the height and length of retaining rings.
 Resurface tire and rollers surface by grinding the surface
irregularities especially at outlet support.
 Adjustment of roller skewing in horizontal plane after grinding
the surface irregularities at tire and rollers.
If this action can not solve the problem, a root cause analysis must
be performed, as well as the total review of the kiln design.
 Oil leaks at left roller at supports No. I, No. II and No. III must be
stopped.
 During next stoppage stopblock at upper side of tire No. III should be
welded back
 Cracked chair pad of tire No. III must be replaced during next
stoppage/shutdown.
 Inspection windows, rollers housing, bolts, frames at all stations should be
cleaned especially at inlet and outlet zone. Dust can easily contaminate an
oil and scratch surface of shaft.
 The kiln surroundings area to be cleaned especially at outlet zone.
 Inspection of concrete foundation should be considered due to many
cracks around base frame at second and third support.
VII. THE KILN MECHANICAL PARAMETERS
The kiln mechanical parameters were calculated with consideration of
kiln shell data, refractory lining, material flow, as well as all dimensions of kiln
components. The results are shown in an appendix.
Geoservex’s Team would like to thank the Plant Representatives for cooperation
and assistance during our visit.

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Coordinating System, Symbols and Terms
x
y


dy
dz
ds
axial coordinate
rollers’ operating angle
kiln inclination
horizontal axis correction
horizontal coordinate
z vertical coordinate
vertical axis correction
skewing correction
real axis
adjustment axis
reference axis
s under-tire clearance
Hatch (manhole) starting point
for all measurements
9
z
x
y
x

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y4 =
x4 =
Measurement Data
 = 2.96 %
 2 =
 3 =
4 =
,
o
,
o
,
o
,
o
[ ]
[ m ]
x3 =
x2 = 25.57
y3 =
[ mm ]
y2 = - 14.0
[ mm ]
z3 =
z2 =
0.0
z4 =
s4 =
s3 =
[ mm ]
s2 =
Coordinate " z "
Coordinate " x "
INLET
OUTLET
Under-tire clearance " s "
INLET
OUTLET
INLET
OUTLET
INLET
OUTLET
INLET
OUTLET
Rollers’ operating angle ""
Coordinate " y "
Kiln inclination
0.0
51.45
77.42
- 6.0
+ 8.0
+ 4.0
5.0
2.5
2.0 60
25
60 20
60
30
10
(average)
 1 =
,
x1 = 0.00 y1 = 0.0 z1 =
s1 =
0.0
8.0 05
60
o

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tolerance zone
+/- 1.5 mm
Axial Deviations
in Horizontal Plane
0.0 mm 0.0 mm
x
y
O
U
T
L
E
T
I
N
L
E
T
- 6.0 mm
11
- 14.0 mm

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
12
2.96 %

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Roller skewing value is reduced for adjustment bolts’ distance
Rollers’ Skewing - Horizontal Plane
kiln axis
O
U
T
L
E
T
I
N
L
E
T
3.0 mm 1.0 mm
0.0 mm
0.0 mm
1.5 mm 0.5 mm
13
3.5 mm
0.5 mm

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Note:
Roller inclination value is reduced
for adjustment bolts’ distance
0.5 mm
adjustment bolts’
distance
0.0 mm
0.5 mm
Pier I
2.96 %
14
1.0 mm
0.5 mm
Pier II
1.0 mm
0.0 mm
Pier III
0.5 mm
0.0 mm
Pier IV
Roller inclination value is reduced for adjustment bolts’ distance

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Mechanical Position of Support Rollers
15
O
U
T
L
E
T
I
N
L
E
T
contact
bearing
resistance ring
gap
roller
shaft shaft

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August 2016 (Hot condition) 16
Tires’ and Shell Temperature
Unit: [ C]
Emission factor: 0.95
O
U
T
L
E
T
I
N
L
E
T
100
Date of survey: 24.08.2016
PIER I inlet side outlet side
minimum 136 140
maximum 154 163
difference 18 15
103 156 158 165 155 170 175
PIER II inlet side outlet side
minimum 175 181
maximum 250 204
difference 75 23
PIER III inlet side outlet side
minimum 263 265
maximum 278 287
difference 15 22
PIER IV inlet side outlet side
minimum 279 261
maximum 299 284
difference 20 23

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tolerance zone
+/- 1.5 mm
0.0 mm
x
y
O
U
T
L
E
T
I
N
L
E
T
0.0 mm
17
0.0 mm
Adjustment Program
in Horizontal Plane
- 21.0 mm
Note: Calculation not including roller replacement

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2.96 %
Adjustment Program
in Vertical Plane
Note: Calculation not including roller replacement.

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x
O
U
T
L
E
T
I
N
L
E
T
19
Adjustment Schedule
Note: Adjustment should becarried out in stages
Rollers’ operating angle on inlet support
before adjustment  = 60
o
05 ’
Rollers’ operating angle on inlet support
after adjustment  = 59
o
10 ’

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O
U
T
L
E
T
I
N
L
E
T
Recommendation for Future Thrust Correction
Perform only if necessary
kiln up
1
kiln up
2
kiln down
1
kiln down
2

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Tire and Roller Diameter during Measurement
(with Influence of Temperature)
O
U
T
L
E
T
I
N
L
E
T
 = 1226  = 1298  = 1294
 = 1288  = 1288  = 1293

 
 = 1296
 = 1288

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23
Tire Axial Run-out (Wobbling)
Tire No. I - example
Y
Z
1
32
31
30
29
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Note:
Hatch (manhole) describing kiln position - at the bottom

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Axial Deviations of Pinion and Gear Box in Vertical Plane
800 mm 420 mm 850 mm
0.0 mm - 1.0 mm - 1.0 mm - 2.0 mm

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Shell ovality measurement
33

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Shell ovality measurement
Ovality limits as a function of the kiln diameter
No. of the Tire
and side
of measurement
Mean ovality
from three
measurements
Distance
from the tire
center
Tire IV
Inlet side
Tire IV
Outlet side
Tire III
Inlet side
Tire III
Outlet side
Tire II
Inlet side
Tire II
Outlet side
0.13 % 0.8 m
0.10 % 0.8 m
0.25 % 0.8 m
0.27 % 0.8 m
0.26 %
0.25 %
0.8 m
0.8 m
35
Tire I
Inlet side
Tire I
Outlet side
0.50 % 0.8 m
0.53 % 0.8 m

Pier No. I Uphill
A: 0.37%
B: 0.44%
C: 0.68%
Avg.: 0.50%
Pier No. I Downhill
A: 0.43%
B: 0.51%
C: 0.64%
Avg.: 0.53%

Pier No. II Uphill
A: 0.29%
B: 0.27%
C: 0.26%
Avg.: 0.27%
Pier No. II Downhill
A: 0.26%
B: 0.24%
C: 0.24%
Avg.: 0.25%

Pier No. III Uphill
A: 0.36%
B: 0.21%
C: 0.20%
Avg.: 0.26%
Pier No. III Downhill
A: 0.34%
B: 0.21%
C: 0.19%
Avg.: 0.25%

Pier No. IV Uphill
A: 0.14%
B: 0.13%
C: 0.12%
Avg.: 0.13%
Pier No. IV Downhill
A: 0.12%
B: 0.10%
C: 0.10%
Avg.: 0.10%

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40
Visual Inspection
Inlet
Inlet seal in good condition
Support No. I
Right Roller
Roller running surface badly worn out

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41
Visual Inspection
Support No. I
Tire
Damaged and worn out stopblocks (upper side)

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42
Visual Inspection
Support No. I
Tire
Distance between lower side surface of tire and
stopbloks incorrect - approx. 32 mm

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43
Visual Inspection
Support No. I
Rollers
Adjustment system in poor condition

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44
Visual Inspection
Support No. I
Left Roller
Plexiglass of inspection window with cracks
(upper housing)

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45
Visual Inspection
All Supports
Right Roller
Graphite system does not work
Graphite bars are missing at all stations

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46
Visual Inspection
Supports No. I, No. II and No. III
Left Roller
Oil leak from upper shaft
Oil present on running surface of roller and tire

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47
Visual Inspection
Support No. II
Thrust units
Running surface of thrust roller worn out.
Upper side Lower side

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Visual Inspection
48
Girth Gear and Pinion
Left Pinion
Girth gear and pinion teeth are worn out
Root clearance and backlash incorrect
Pitch line indicates offset 5 -7 mm during revolution

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Visual Inspection
49
Drive Train
Leakage of oil/grease from pinion housing
and counter shaft

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50
Visual Inspection
Support No. III
Tire
Missing stopblocks

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51
Visual Inspection
Support No. III
Tire
Cracked chair pad

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52
Visual Inspection
Support No. IV
Whole support covered by lime material

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53
Visual Inspection
Support No. II and No. III
Concrete foundation
Cracks in concrete around pier base
Visible steel reinforcement

Rotary Kiln Inspection August 2016 (Hot condition) Page
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Cross Sections’ Diagam
for Kiln Shell Deviation Survey
54
I
N
L
E
T
P - I
1
P - II P - III P - IV
2 4
O
U
T
L
E
T
20
19
Hatch describing
kiln position
5
6
7
8
9 10 11 12 13 14 1516 18
17 21
22 23 24 25 26 27 28 32
31
33 35 36 37 41
40
3
29
30 34 38 39
42
43
1
- 8
- 5
2
- 9
- 5
3
10 10
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-I
-
-
-
DRIVE
- 5
- 5
7
P-II
4
- 1
- 5
5
5
0
- 3
3
6
- 1
- 1
1
-
-
-
7 8
+ 6
+ 1
6
9
+ 8
+ 7
11
10
+ 7
+ 9
12
11 12
+ 5
+ 6
7
13
+ 3
+ 4
5
14
+ 2
+ 3
4
15
0
0
0
-
-
-
16 17
0
0
0
18 19
0
- 2
2
22 23
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-III
-
-
-
P-IV
24
- 1
- 7
7
25
0
- 8
8
26
- 2
- 9
9
27
- 2
- 7
7
28
+ 1
- 3
3
30 31
+ 3
- 4
5
32 33 34
0
0
0
35
- 2
+ 3
4
-
-
-
36
- 1
+ 4
4
37
- 4
+ 4
5
38
- 6
+ 3
7
39
- 6
+ 2
6
42
29
+ 1
- 1
1
0
- 7
7
- 3
- 6
7
0
- 1
1
40
- 1
- 1
1
0
0
0
+ 5
+ 9
10
- 1
0
1
+ 5
0
5
20
- 1
- 3
3
43
+ 4
- 3
5
21
- 5
- 4
6
41
+ 2
+ 1
2
0
0
0
+ 3
- 4
5
+ 3
- 3
4

GeoCement
GeoCement
Shell Profile
Starting point at the bottom - 0o
55
1
- 8
- 5
2
- 9
- 5
3
10 10
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-I
-
-
-
DRIVE
- 5
- 5
7
P-II
4
- 1
- 5
5
5
0
- 3
3
6
- 1
- 1
1
-
-
-
7 8
+ 6
+ 1
6
9
+ 8
+ 7
11
10
+ 7
+ 9
12
11 12
+ 5
+ 6
7
13
+ 3
+ 4
5
14
+ 2
+ 3
4
15
0
0
0
-
-
-
16 17
0
0
0
18 19
0
- 2
2
22 23
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-III
-
-
-
P-IV
24
- 1
- 7
7
25
0
- 8
8
26
- 2
- 9
9
27
- 2
- 7
7
28
+ 1
- 3
3
30 31
+ 3
- 4
5
32 33 34
0
0
0
35
- 2
+ 3
4
-
-
-
36
- 1
+ 4
4
37
- 4
+ 4
5
38
- 6
+ 3
7
39
- 6
+ 2
6
42
29
+ 1
- 1
1
0
- 7
7
- 3
- 6
7
0
- 1
1
40
- 1
- 1
1
0
0
0
+ 5
+ 9
10
- 1
0
1
+ 5
0
5
20
- 1
- 3
3
43
+ 4
- 3
5
21
- 5
- 4
6
41
+ 2
+ 1
2
0
0
0
+ 3
- 4
5
+ 3
- 3
4

GeoCement
GeoCement
Shell Profile
Starting point at 90o
56
1
- 8
- 5
2
- 9
- 5
3
10 10
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-I
-
-
-
DRIVE
- 5
- 5
7
P-II
4
- 1
- 5
5
5
0
- 3
3
6
- 1
- 1
1
-
-
-
7 8
+ 6
+ 1
6
9
+ 8
+ 7
11
10
+ 7
+ 9
12
11 12
+ 5
+ 6
7
13
+ 3
+ 4
5
14
+ 2
+ 3
4
15
0
0
0
-
-
-
16 17
0
0
0
18 19
0
- 2
2
22 23
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-III
-
-
-
P-IV
24
- 1
- 7
7
25
0
- 8
8
26
- 2
- 9
9
27
- 2
- 7
7
28
+ 1
- 3
3
30 31
+ 3
- 4
5
32 33 34
0
0
0
35
- 2
+ 3
4
-
-
-
36
- 1
+ 4
4
37
- 4
+ 4
5
38
- 6
+ 3
7
39
- 6
+ 2
6
42
29
+ 1
- 1
1
0
- 7
7
- 3
- 6
7
0
- 1
1
40
- 1
- 1
1
0
0
0
+ 5
+ 9
10
- 1
0
1
+ 5
0
5
20
- 1
- 3
3
43
+ 4
- 3
5
21
- 5
- 4
6
41
+ 2
+ 1
2
0
0
0
+ 3
- 4
5
+ 3
- 3
4

GeoCement
GeoCement
Shell Profile
57
1
- 8
- 5
2
- 9
- 5
3
10 10
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-I
-
-
-
DRIVE
- 5
- 5
7
P-II
4
- 1
- 5
5
5
0
- 3
3
6
- 1
- 1
1
-
-
-
7 8
+ 6
+ 1
6
9
+ 8
+ 7
11
10
+ 7
+ 9
12
11 12
+ 5
+ 6
7
13
+ 3
+ 4
5
14
+ 2
+ 3
4
15
0
0
0
-
-
-
16 17
0
0
0
18 19
0
- 2
2
22 23
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-III
-
-
-
P-IV
24
- 1
- 7
7
25
0
- 8
8
26
- 2
- 9
9
27
- 2
- 7
7
28
+ 1
- 3
3
30 31
+ 3
- 4
5
32 33 34
0
0
0
35
- 2
+ 3
4
-
-
-
36
- 1
+ 4
4
37
- 4
+ 4
5
38
- 6
+ 3
7
39
- 6
+ 2
6
42
29
+ 1
- 1
1
0
- 7
7
- 3
- 6
7
0
- 1
1
40
- 1
- 1
1
0
0
0
+ 5
+ 9
10
- 1
0
1
+ 5
0
5
20
- 1
- 3
3
43
+ 4
- 3
5
21
- 5
- 4
6
41
+ 2
+ 1
2
0
0
0
+ 3
- 4
5
+ 3
- 3
4

GeoCement
GeoCement
Shell Profile
58
1
- 8
- 5
2
- 9
- 5
3
10 10
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-I
-
-
-
DRIVE
- 5
- 5
7
P-II
4
- 1
- 5
5
5
0
- 3
3
6
- 1
- 1
1
-
-
-
7 8
+ 6
+ 1
6
9
+ 8
+ 7
11
10
+ 7
+ 9
12
11 12
+ 5
+ 6
7
13
+ 3
+ 4
5
14
+ 2
+ 3
4
15
0
0
0
-
-
-
16 17
0
0
0
18 19
0
- 2
2
22 23
Section No.
Y geom.centre
Z geom.centre
Eccentricity
Unit
mm
mm
mm
P-III
-
-
-
P-IV
24
- 1
- 7
7
25
0
- 8
8
26
- 2
- 9
9
27
- 2
- 7
7
28
+ 1
- 3
3
30 31
+ 3
- 4
5
32 33 34
0
0
0
35
- 2
+ 3
4
-
-
-
36
- 1
+ 4
4
37
- 4
+ 4
5
38
- 6
+ 3
7
39
- 6
+ 2
6
42
29
+ 1
- 1
1
0
- 7
7
- 3
- 6
7
0
- 1
1
40
- 1
- 1
1
0
0
0
+ 5
+ 9
10
- 1
0
1
+ 5
0
5
20
- 1
- 3
3
43
+ 4
- 3
5
21
- 5
- 4
6
41
+ 2
+ 1
2
0
0
0
+ 3
- 4
5
+ 3
- 3
4

GeoCement
GeoCement
Radial Diagram of Shell Deformation
(Circular Deviations)
Deformation Scale - 1 : 1
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 1
geometric
centre
axis of
rotation
z
y
Note:
Hatch describing kiln position
at the bottom
VIEWING FROM INLET SIDE
- 8
- 5
10
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 2
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 9
+ 5
10
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 5
- 5
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 4
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
- 5
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 5
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
- 3
3
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 6
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
- 1
1
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 7
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
0
0
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 8
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
+ 6
+ 1
6
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 9
z
y
Note:
at the bottom
+ 8
+ 7
11
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
CROSS SECTION No. 10
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
+ 7
+ 9
12
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 5
+ 9
10
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 5
+ 6
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 3
+ 4
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 2
+ 3
4
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
0
0
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
0
1
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
0
0
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
- 2
2
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
- 3
3
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 5
- 4
6
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 3
- 6
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
- 7
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
- 7
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
- 8
8
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 2
- 9
9
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 2
- 7
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
+ 1
- 3
3
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 1
- 1
1
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
- 1
1
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 3
- 4
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 3
- 3
4
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
0
0
0
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 2
+ 3
4
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
- 1
+ 4
4
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
- 4
+ 4
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
- 6
+ 3
7
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
- 6
+ 2
6
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
- 1
- 1
1
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
+ 2
+ 1
2
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
z
y
Note:
at the bottom
+ 5
0
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm
geometric
centre
axis of
rotation

GeoCement
GeoCement
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18 17 16
15
14
13
12
11
10
9
8
7
6
5
4
3
geometric
centre
axis of
rotation
z
y
Note:
at the bottom
+ 4
- 3
5
GEOMETRIC CENTRE
COORDINATES
Coordinate Y
Coordinate Z
ECCENTRICITY
mm
mm
mm

GEOSERVEX
Zbigniew Krystowczyk
office:
Kosciuszki 27/19A
85-079 Bydgoszcz, POLAND
tel: +48 52 345 62 50
fax: +48 52 345 62 55
e-mail: office@geoservex.com.pl
http://www.geoservex.com.pl
EU VAT ID No.:
PL 967-069-26-19
ENGINEERING MEASUREMENTS ENTERPRISE LTD.
APPENDIX
MECHANICAL PARAMETERS
ROTARY KILN
August 2016

The kiln mechanical parameters were calculated with consideration of actual thickness of
kiln shell, refractory lining, material flow, as well as all dimensions of kiln components and its
current temperature. All results represent the case of straight kiln axis. To illustrate consequences
for the kiln we calculate load capacity utilization of particular parameter referring to its design
limit.
LOAD DISTRIBUTION FOR ROLLERS AND TIRES
BEARINGS TIRES
Specific load Utilization Bending stress Utilization Hertz pressure Utilization
(design limit 4.4 MPa) [ % ] (design limit 60 MPa) [ % ] (design limit 440 MPa) [ % ]
Support No. 1 - - 12.4 21 218.9 50
Support No. 2 - - 13.4 22 244.8 56
Support No. 3 - - 15.1 25 280.5 64
Support No. 4 - - 12.2 20 219.4 50
Results above show that Hertz pressure between rollers and tires as well as bending stress
of tires are within design limits for all supports. Specific load values for bearings are not shown
due to missing (not provided) dimensions of roller bearings.
STIFFNESS MATRIX
Change of reaction in [%] by lowering particular support by 10 mm
Change at
Support
No. 1
Change at
Support
No. 2
Change at
Support
No. 3
Change at
Support
No. 4
Support No. 1 1.5 -4.8 10.1 -5.7
Support No. 2 -8.5 16.9 -27.1 13.0
Support No. 3 12.5 -19.3 24.0 -8.8
Support No. 4 -5.5 7.3 -7.0 1.6
The stiffness matrix illustrates kiln shell characteristics. The results illustrate change of
reaction of all supports when particular support is lowered by 10 mm. Considering maximum
reaction value of 27.1 % this kiln is classified as medium flexible. It means the kiln is not very
sensitive for change of kiln axis position and reactions at supports do not change drastically.
Anyway, it is still recommended to pay attention to the kiln alignment and under-tire clearance
changes to avoid overload in the future.

Kiln shell bending stress reaches 17 MPa and it is within designed limits (25 MPa). It looks
there is some spare limit for shell bending stress. However, it has to be considered that the
results above represent straight kiln in static condition and without any shell deformation or crank
formation. The kiln (as designed) is not overloaded at any support and theoretically shall not be a
subject to cracks due to bending stress.
TIRE MIGRATION, SHELL RELATIVE OVALITY, NIES OVALITY FOR TIRES
SHELL TIRES
Rel. ovality Utilization Migration Nies ovality Utilization
(design limit 0.30%) [ % ] (recommended: 10 mm/rev) (design limit 0.20%) [ % ]
Support No. 1 0.285 95 25 0.032 16
Support No. 2 0.241 80 19 0.040 20
Support No. 3 0.145 48 9 0.052 26
Support No. 4 0.096 32 6 0.032 16
Tire migration is in tolerance (10 – 20mm) for supports No. 2 and No. 3. For supports
No. 1 and No. 2 tire migration slightly exceeds tolerance. Nies ovality is within tolerance for all
tires. Relative ovality for support No. 1 is almost on design limit (consequence of tire migration).
In general, the kiln mechanical parameters are within design limits. The kiln is definitely
not overloaded in terms of support loads, tire stress and Hertz pressure between tires and rollers.
Also the kiln shell bending stress is within designed limit. However, it should be considered that
all the design limits correspond to static condition and in fact all parameters are frequently much
higher due to cyclical load change during kiln operation (crank effect). It is recommended to
monitor the bearings condition and temperature frequently.
Technical drawings of calculation results are attached at the end of this report.

Page
GeoCement
GeoCement
Load Components and Kiln 3D Model
4

Page
GeoCement
GeoCement
Load Components and Kiln 3D Model
5

Page
GeoCement
GeoCement
Weight distribution [t/m]
6

Page
GeoCement
GeoCement
Longitudinal Bending Stress of the Kiln Shell [MPa]
7

Page
GeoCement
GeoCement
Vertical Displacement of the Kiln Shell [mm]
8

Page
GeoCement
GeoCement
Shear Stress of the Kiln Shell
9

Page
GeoCement
GeoCement
Von Mises Stress of the Kiln Shell [MPa]
10

Page
GeoCement
GeoCement
Bending Stress of Tires [MPa]
11
Support 3
Support 4

Page
GeoCement
GeoCement
Bending Stress of Tires [MPa]
12
Support 2 Support 1

Exemplary report-rotary-kiln-alignment

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