The document discusses upgrading the electrostatic oiler on an electrolytic tinning line (ETL). The current oiler has issues with non-uniform and abrupt oil coating. The proposed upgrade involves replacing the current oiler with a GFG Peabody oiler to improve coating quality and uniformity. Test data shows the new oiler achieves more consistent coating within the target range compared to the inconsistent results of the current oiler.

1. UPGRADATION
OF
TRION ELECTROSTATIC
OILER
Overviewed by
Project mentor

2. OUTLINE
OVERVIEW OF Etl line
WHY OILER?
OILER OF ETL 1 VS ETL 2
PROBLEMS ASSOCIATED
QUALITY ASPECTS
PROPOSED PLANS
IMPROVEMENTS

3. ALKALINECLEANING
ALKALINE
CLEANING
Rinsing
Pickling
Rinsing
PickleDunk
PRE-PRIMARYCLEANING
LOOP-PIT#2
LOOP-PIT#1
BRIDLE#1
LAP-SEAMWELDER
PAY-OFFREEL#2
PAY-OFFREEL#1
BRIDLE#2
Entry Section Pre-plating Section
OVERVIEW OF ETL
Line Direction
To Plating Section

4. PLATING SECTION CHEMICAL SECTION
REFLOW SECTION
HOT-AIR DRIER#2 HOT-AIR DRIER#3
PLATING WRINGER ROLLS CHEM. WRINGER ROLLS
QUENCH TANKDRY CONDUCTOR ROLL
WETCONDUCTORROLL
MUFFLEFURNACE
FROMPREPLATING
SECTION
Plating Section Reflow Section Post- Plating Section
Line Direction TO OILER &
DELIVERY SECTION
ELECTROLYTIC TINNING LINE LAYOUT

5. DELIVERY SECTION
OFF-GAUGEDETECTOR
CARRY-OVER ROLLSELECTROSTATICOILER
BRIDLE#3
PIN-HOLEDETECTOR
DDS SHEAR
LOOP-PIT#3
TOCLASSIFIER
SECTION
Line Direction
ELECTROLYTIC TINNING LINE LAYOUT

6. Line Direction
BC #10
BC #11
Selection ConveyersLapping Conveyers
Pillers
CLASSIFIER SECTION
ELECTROLYTIC TINNING LINE LAYOUT

7. WHY OILER SETION
BASE METAL
METALLIC CHROMIUM
CROMIUM OXIDE
Minimize damage by abrasion
Prevent sticking of sheets
Aid in printing &lacquering
Aid i printing &lacquering
BASE METAL
ALLOY LAYER
Gives a glossy finish
TIN
PASSIVATION
LAYER
OIL LAYER
T.F.S E.T.P

8. TRION ELECTOSTATIC OILER COATING DATA
DATE ETL COIL Nos LINE SPEED OPERATION CENTRE DRIVE DIFF = MAX-MIN
21.07.2014 1 AG0835 210 6.13 8.59 8.19 2.06
21.07.2014 1 AG0883 220 8.32 9.98 7.58 2.4
21.07.2014 1 AG0448 190 8.68 8.12 7.36 1.32
22.07.2014 1 AG0838 210 8.89 8.97 8.83 0.14
22.07.2014 1 AG01079 178 8.58 9.1 8.2 0.9
22.07.2014 1 AG0704 200 6.36 6.98 8.63 2.27
22.07.2014 1 AG0801 240 5.47 7.58 8.54 3.07
23.07.2014 1 AG0308 220 7.91 8.83 9.93 2.02
23.07.2014 1 AG0418 190 8.14 9.16 9.9 1.76
23.07.2014 1 AG0385 221 7.84 8.78 9.9 2.06
23.07.2014 1 AG0452 215 8.97 8.9 8.92 0.07
24.07.2014 1 AG0961 140 4.94 7.09 4.8 2.29
24.07.2014 1 AG0961 140 4.17 8.04 6.35 3.87
24.07.2014 1 AG1008 220 5.86 6.25 6.64 0.39
25.07.2014 1 AG0952 180 6.53 7.73 3.5 4.23
25.07.2014 1 AG0979 214 6.53 6.35 3.18 3.35
25.07.2014 1 AG0979 210 6.78 6.3 3.92 2.86
25.07.2014 1 AG1129 140 8.99 7.94 3.17 5.28
26.07.2014 1 AG1102 185 6.28 8.12 3.45 4.67
26.07.2014 1 AG0885 210 8.33 8.47 5.24 3.23
28.07.2014 1 AG02071 185 6.53 7.41 3.33 4.08
28.07.2014 1 AG1238 213 7.78 8.11 3.24 4.87
28.07.2014 1 AG0698 209 6.42 7.06 5.89 1.17
28.07.2014 1 AG1300 201 5.33 7.41 4.28 3.13
30.07.2014 1 AG1320 254 6.43 6.14 9.88 4.14
31.07.2014 1 AG1293 234 5.66 9.35 9.74 4.08
TARGET= 8 Mg/cm2
A total of 26 cut sheet were taken from ETL-1 at primary stage and from each, 3 samples were cut to test for oil in SOM apparatus

9. 0
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14
1 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
CENTRE
max min CENTRE
SAMPLE DATA
COATING
0
2
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14
1 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
OPERATION
max min OPERTION
COATING
0
2
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1 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
DRIVE
max min DRIVE
COATING
SAMPLE DATA
SAMPLE DATA
0
1
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5
6
1 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
DIFF = MAX-MIN
COATING
SAMPLE DATA

10. Primary problems
QUALITY
Abrasion
Sticking of sheet
Printing & lacquering problem
Oil mark
Non uniform & abrupt oil
coating Cause
Symptoms
Effect

12. •
Deflector roll
Tin strip
Access door safety
switch each side
Insulating baffle
Removable ionizer
cartridge
Primary air
manifold
Primary air
nozzles
Deflector roll
Secondary air manifold
Adjustable shutter
Ionizing wires
The Trion oiler is a electro static precipitation unit design
to deposit a micro thin film of protective, lubricating oil on a
moving strip of tin plated steel.
There are two high voltages used, one is -50 KV DC &
second one is- 20 KV DC for repelling and ionization
respectively.
These extremely high voltages are generated by stepping
up the voltage from 110 VAC to -20 KVDC and 220 VAC to -
50 KVDC.
 Ionization voltage basically used to ionize the oil fog /
mist, formed by mixture of primary air and oil. In ionization
process, oil mist/fog break into positive and negative ion.
Repelling voltage (-50KV DC) repel the negative ion and
forced to flow toward the sheet. Ionization voltage passed
from power supply panel to ionizing wire through cartridge.

13. Circuit or animation

14. CONTROL AND INTERLOCKS
Differential air pressure transmitter senses the pressure(0-300 mm of w.c column) and corresponding to that gives
output of 4-20 m amps.
Honeywell UDC2500 takes 4-20 m amps and line speed as feedback & and gives output of 4 -20 m amps.
The I/P converter converts 4-20 m amps to 3-15psi that control the valve.
Port valve is generally set at 60 -70 % of manual opening & used to increase the coating a particular speed.
At variable line speed coating is controlled with PID.
Primary air pressure is set at 8psi. (normally constant)
-50kv, -20kv, primary & secondary air is turned on when line speed is 60MPM
PID I/P
FLOW TRANSMITTER
LINE SPEED F/B
PORT VALVE
20 PSI
CONTROL VALVE
SECONDRY
AIR LINE
4-20 mAMPS 4-20 mAMPS 3 -15 PSI

15. PALPABLE REASONAbruptoilcoating
Removed
side plates
Choked
nozzle
No control system
Trial & error adjustment
Low efficiency
oil flow
 Adjustable plates according to the strip width was removed
 Due to that oil stick to the repelling plates when shorter width coil runs
 Nozzle get chocked due to the contaminants in DOS
 Only secondary air is controlled with line speed
 Primary air, -20kv, -50kv are on manual adjustment
 Coating set point is trial n error based method
 Opening and closing of port valve
 Only 40 – 50 % efficiency
 No metering pump to check the oil flow

16. GFG PEABODY OILER
DATE ETL COIL Nos LINE SPEED OPERATION CENTRE DRIVE DIFF = MAX-MIN AVG
21.07.2014 2AG0757 250 6.36 5.76 5.72 0.64 5.946667
27.07.2014 2AG1058 180 6.53 5.89 5.8 0.73 6.073333
27.07.2014 2AG1250 221 6.98 6.14 6.28 0.84 6.466667
27.07.2014 2AG1060 189 6.59 7.12 6.87 0.53 6.86
29.07.2014 2AG1269 288 6.36 7.41 6.98 1.05 6.916667
29.07.2014 2AG1199 298 7.41 8.11 7.01 1.1 7.51
29.07.2014 2AG1208 180 6.99 7.06 6.1 0.96 6.716667
29.07.2014 2AG1283 280 6.58 7.41 6.87 0.83 6.953333
31.07.2014 2AG07401 230 5.84 5.34 5.61 0.5 5.596667
31.07.2014 2AG1293 225 5.66 5.54 6.01 0.47 5.736667
01.08.2014 2AF1122 232 5.83 6.1 5.87 0.27 5.933333
01.08.2014 2AF0955 298 7.36 7.66 7.5 0.3 7.506667
02.08.2014 2AF1490 245 5.14 5.7 5.35 0.56 5.396667
02.08.2014 2AF1791 220 4.96 5.34 5.12 0.38 5.14
04.08.2014 2AF1538 214 5.87 6.21 5.93 0.34 6.003333
04.08.2014 2AF1871 225 4.71 5.12 4.91 0.41 4.913333
04.08.2014 2AF12862 216 5.14 5.8 5.66 0.66 5.533333
04.08.2014 2AF1795 206 4.82 5.14 4.92 0.32 4.96
05.08.2014 2AF1698 230 4.99 5.35 5.16 0.36 5.166667
For comparison 19 samples were taken from ETL2 for checking oil coating and same experiment was repeated
COATING NORMS = 5-12 Mg/cm2 SET POINT= 5-7 Mg/cm2

17. 0
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
operation
OPERATION max min
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
centre
CENTRE max min
0
2
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
drive
DRIVE max min
COATING
SAMPLE DATA
SAMPLE DATA
SAMPLE DATA
COATING
COATING
DIFF = MAX-MIN0
0.2
0.4
0.6
0.8
1
1.2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
DIFF = MAX-MIN

18.  Designed to apply oil coatings to continuous
strips with the rotary atomizers.
 First, oil is delivered to the patented feed
tube, inside the rotating atomizing by
precision positive displacement metering
pumps.
 a low pressure air jet impinge fluid stream to
partially atomize it