Minerals Technologies Inc. · NYSE:MTX
Minerals Technologies — Technical Presentation (October 2018)
26 slides from Minerals Technologies's technical presentation, October 2018
Slide 1: LI-Explorer
LI-Explorer Rolf Lamm October 2018
Slide 2: Laserprofile Measurement in the Steel Industry
2 Laserprofile Measurement in the Steel Industry LaCam® - Mobile Fixed installation for: Converters Ladles EAFs Mobile version Torpedo Tadles for converters and ladles Open Die Forging
Slide 3: Motivation of Laser Measurement in Ladles
3 Motivation of Laser Measurement in Ladles Why Laserscanner for Hot Ladles? Increase of safety in a steelplant Reduction of refractory and maintenance cost Optimization of process and logistics Increase of yield
Slide 4: Examples of Current Laser-Ladle Inspection
4 Examples of Current Laser-Ladle Inspection fixed or tiltable ladle stand bridge over ladle transport car swinging arm above ladle If the mouth of the ladle is “clean” and no skull is built up you can have good results from the entire Ladle- Refractory lining although the laserscanner is in front o
Slide 5: New Developed LaCam LI-Explorer
5 New Developed LaCam® LI-Explorer Patented measurement method was further developed to measure ladle refractory lining in hot condition directly after tapping from inside the ladle The method of immersing a laserscanner into a hot confined space was already introduced with the LaCam®-Torpedo which
Slide 6: Measurement Procedure
6 Measurement Procedure Positioning-Scan on outer ladle shell Bottom-Scan from outside Centerposition-Scan 360° inside ladle
Slide 7: Examples of LaCam LI-Explorer Applications
7 Examples of LaCam LI-Explorer Applications Ladle in Vertical Position Ladle in Horizontal Position Klick on picture to run animation clip
Slide 8: Versatile 2D and 3D Result presentation for Ladle Application
8 Versatile 2D and 3D Result presentation for Ladle Application Ladle Refractory Thickness- ,Wear- and Wearspeed- Measurement Wall Examples of 3D presentation Trend and Tendency Analysis Bottom Sectional and Horizontal 2D Cut
Slide 9: Evaluation and presentation of the results
9 Evaluation and presentation of the results
Slide 10: Measurement from outside vs. inside
10 Measurement from outside vs. inside A B Refractory thickness measurement with laserhead position outside (A) and inside (B) Not measured areas in the slagzone are white spots (A) fully measured slagzone (B) shows dangerous thin lining in red
Slide 11: Pyrometric Temperature Measurement
11 Pyrometric Temperature Measurement Simultaneously to the lining thickness the system measures the surface temperature of the lining with a high density of data collection (one measure point per laser shot). With this additional temperature profile information the system provides non-uniform tempe
Slide 12: Gap and Crack Detection
12 Gap and Crack Detection Crack and Gaps in a ladle Performed data processing is a special 2D peak finding algorithm which has some similarities to image processing functions. In a combined evaluation of brick thickness-, surface temperature and Laser Echo Amplitude a gap or crack in the lining can
Slide 13: 3D - Gap contour plot of ladle / view from outside
13 3D - Gap contour plot of ladle / view from outside w/o steel shell and cut in half from inside Ladle wall with gaplines (red) and gap values
Slide 14: 3D - Gap contour plot and Temp. plot of ladle bottom
14 3D - Gap contour plot and Temp. plot of ladle bottom result in automatic detection of extreme points “extreme points”
Slide 15: Taphole Condition and Sandfilling
15 Taphole Condition and Sandfilling Detection of “Open slider”, Debris above slider, optimum amount of sand mass, optimum sand filling by controlled x-y- position, optimum sand profile shape Tap Holes Tap Holes before after sand sand filling filling
Slide 16: Bathlevel Determination and Freeboard
16 Bathlevel Determination and Freeboard Bathlevel determination based on exact profile and volume calculation and input from steel- and slag mass
Slide 17: Cooling and Control Unit
17 Cooling and Control Unit IPC COMPUTER PLC SERVICE Control unit monitor and keyboard Space for customer specific solutions
Slide 18: Cooling and Control Unit
18 Cooling and Control Unit User friendly solution and easy to maintain Heat exchanger Operation mode Service mode Incl. fan 20l water reservoir Selector Cooling/ Auto filling High power pump
Slide 19: Conclusion
19 Conclusion By immersion the laserscanner into the ladle you achieve better results by means of • Higher measurement accuracy in all areas - covering 100% of the ladle surface • Scanning areas e.g. slagzones which are often hidden if you are using laserscanner from outside • Very high resolution s
Slide 20: SCANTROL - Intelligent Control Module between Laser Wear Measurement
SCANTROL®- Intelligent Control Module between Laser Wear Measurement System LaCam® and Automatic Spraying Manipulator LaCam® M LaCam® CI, Converter LaCam® - EAF LaCam®, LI Ladles Tornado Shooter Minscan Lego Manipulator
Slide 21: System overview Scantrol for Ladle (example)
21 System overview Scantrol for Ladle (example)
Slide 22: Planning in realisation of the complete system
22 Planning in realisation of the complete system
Slide 23: Control Flow SCANTROL
Control Flow SCANTROL® Start of Operation Measuring Optimisation Controlling by Sequence Strategy Operator Coordinates for Visualisation Manipulator Gunning Sequence End of Operation
Slide 24: Scantrol mask: Wall Areas
24 Scantrol® mask: Wall Areas
Slide 25: Controlling by Operator
Controlling by Operator Operator can adjust the optimisation strategy parameters - gunning time (optional) - quantity of material - degree of lining rebuilding Operator can decide whether to start the gunning sequence either - immediately, - later on, - or whether to cancel the gunning sequence
Slide 26: Coordinates for Manipulator
Coordinates for Manipulator The gunning areas calculated by the optimisation strategy are transformed into control commands which can be interpreted by the manipulator Scantrol® mask: Bottom Areas Gunning Result
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