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Nutsche Filter Control

Nutsche Filter Control. Agenda. Introduction Nutsche Filter Industries Concepts of Image Processing Equipment Calibration Real Time Measurement Output Data / Process Control Visual Verification Demonstrations Conclusion Questions & Answers. Introduction.

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Nutsche Filter Control

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  1. Nutsche Filter Control

  2. Agenda • Introduction • Nutsche Filter Industries • Concepts of Image Processing • Equipment • Calibration • Real Time Measurement • Output Data / Process Control • Visual Verification • Demonstrations • Conclusion • Questions & Answers

  3. Introduction Vision Based Approach for Non-Contact Cake Detection and Level Measurement for Nutsche Filters in Weather Proof and Explosion Proof Areas

  4. What is a Nutsche Filter? A Nutsche Filter is a machine used to separate solids from a slurry by using positive pressure. Liquid of the slurry is forced through a screen or cloth so that the solids can be collected.

  5. Typical Nutsche Filter

  6. Process Control by Image Analysis Cake detection is determining the transition from liquid to solid “cake”. It is critical to determine this transition so that cracks in the cake do not form. Cracks will result in inconsistent washes and lost product. Canty performs cake detection by image analysis, detecting the transition and sending an output signal for control to produce homogeneous product. Simultaneously, level measurement and surface roughness can be measured with output signals.

  7. Payback • Batch times can be optimized to save and increase production time. • Cake detection prevents cracking to yield a plug free wash resulting in fewer washes being required. With each wash product is lost. Therefore fewer washes result in higher yield. This can result in a 1-5% increase in output. Payback if a plant produces 10 million dollars per year…5% increase is $500,000 pure profit!!! • Level in nutsche can be used to determine the yield of the crystalizer. Level of cake can be measured on the filter wall. The total level at the start of the batch is the batch size. Yield is the total level to the level of the cake.

  8. Applications & Industries • Pharmaceutical (Crystallization) • Metallic Powders • Chemical • Most Slurry Applications

  9. Concepts of Image Processing • Human Eye • Lighting • Digitizing Image • Image Filters • Image Analysis • Output Signal / Data Storage

  10. Equipment • Camera/Light Combination • Spray Ring • Image Processor

  11. Color or Black & White EXP/FP or Weather Proof Fused Glass (Standard) One Connection Spray Ring Option Various View Angles Fiber Optic Lighting Cold Light NO “Bake-on” Remote Light Option Flush Mount Camera/Light

  12. Color or Black & White EXP/FP or Weather Proof Fused Glass (Standard) One Connection Spray Ring Option Various View Angles Fiber Optic Lighting Cold Light NO “Bake-on” Remote Light Option Insertion Camera/Light

  13. Any Fluid or Gas Vortex Cleaning Action Insertion or Flush Mount Standard to 2500 PSI Various Materials Various Mounting Connections Spray Ring

  14. CANTYVISION Windows Imbedded Standard OPC Standard 4-20mA Excel Interface Ethernet Connection Modem (Support) Image Processor

  15. Calibration • Cake Detection • Measure Intensity (Recording Images) • Set Transition Threshold • Set Output Signal • Verify • Level • Fill in Known Increments • Save Images and Record Values • Enter Data in LUT and Interpolate • Set Output Signal • Verify

  16. Real Time Measurement • Non-Contact • One Port • Accurate • Repeatable • Response Time • Archived Data

  17. Output Data / Process Control • Displays • Monitor • Numerical • Output Signals • 4-20mA • Spreadsheet • OPC • Process Control

  18. Visual Verification • Key Advantage • Operators View Process in Real Time • Cross-hairs / Inverted Image • R&D • Recording Files • Images

  19. Payback • Batch times can be optimized to save and increase production time. • Cake detection prevents cracking to yield a plug free wash resulting in fewer washes being required. With each wash product is lost. Therefore fewer washes result in higher yield. This can result in a 1-5% increase in output. Payback if a plant produces 10 million dollars per year…5% increase is $500,000 pure profit!!! • Level in nutsche can be used to determine the yield of the crystalizer. Level of cake can be measured on the filter wall. The total level at the start of the batch is the batch size. Yield is the total level to the level of the cake.

  20. Conclusion • Real Time Measurement • Non-Contact • Repeatable / Accurate • Visual Verification • Output Signals • Process Control • Better Quality • Higher Yield • Quick Payback

  21. Questions & Answers

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