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High efficiency simultaneous grinding and drying of minerals and sludges

High efficiency simultaneous grinding and drying of minerals and sludges. Presentation for: 15 th Annual Conference on Markets for Industrial Minerals Oct. 22, 2003 David Dungate, V-P Marketing Dr. Sundar Narayan, V-P Research First American Scientific Corporation, Delta, BC.

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High efficiency simultaneous grinding and drying of minerals and sludges

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  1. High efficiency simultaneous grinding and drying of minerals and sludges Presentation for: 15th Annual Conference on Markets for Industrial Minerals Oct. 22, 2003 David Dungate, V-P Marketing Dr. Sundar Narayan, V-P Research First American Scientific Corporation, Delta, BC

  2. Presentation Outline • Introduction to First American Scientific Corp. and the KDS Micronex™ Grinder-Dryer • Description of KDS Grinder-Dryer • Pure Grinding Applications Glass, Limestone, Gypsum, Gold Ore • Grinding AND Drying Applications Zeolite, Glacial Clay, Coal and Paper Sludge • Summary

  3. About First American • Founded in 1995, First American Scientific Corporation (FASC) is industrial equipment manufacturer and provider of innovative systems that increase profitability and reduce the environmental impact of materials processing. • The KDS Micronex™, FASC’s patented grinder-dryer, efficiently and economically processes a wide variety of raw materials and wastes into fine, dry powders.

  4. Introduction to theKDS Micronex™ Technology • KDS stands for Kinetic Disintegration System. The KDS Micronex™ is an high volume grinder that dries WITHOUT needing any heat input. • No heat is needed because the forces causing size reduction also dry the material. • KDS Technology uses LESS total energy than conventional drying and grinding combined.

  5. Target Applications • Soft rock minerals into fertilizers and industrial feedstocks • limestone, zeolite, phosphate rock, gypsum, and clay • Specialty applications • glass, metallic mineral ores • Biomass waste into fuel and fertilizer • paper sludge, manures, biosolids, wood waste and crop residues • Agricultural and food waste processing into animal feeds • food processing waste, oyster shell, fish bones, bread waste, seaweed

  6. Description of theKDS Micronex™ Technology Materials that CANNOT be processed include: • Plastics • Rubber (unless cryogenically cooled) • Metals (metallic ores okay) • Municipal Solid Waste (because it contains the above materials)

  7. Benefits of the KDS Micronex™ • Simplifying on-site grinding and drying operations into a single compact, and easy-to-operate system that has low initial and operating costs • Creating high-quality, dry, virtually pathogen-free powders that have value as industrial feedstocks, fuels, fertilizers and animal feeds. • Reducing transportation and disposal costs by reducing moisture

  8. The KDS MICRONEXTMProcess Flow • Raw material is dropped into the throat of the mill

  9. The KDS MICRONEXTMProcess Flow • An air-lock gate reduces dust and eliminates blow-back

  10. The KDS MICRONEXTMProcess Flow • Material moves to the Torus and is subjected to repeated violent collisions with the spinning rotor and strike plates

  11. The KDS MICRONEXTMProcess Flow • Material is fractured and pathogen destruction occurs • Water vapor and water droplets are released during the fracturing process

  12. The KDS MICRONEXTMProcess Flow • The classifier allows finished product to pass through to the cyclone and forces oversize particles to be reprocessed Cyclone

  13. The KDS MICRONEXTMProcess Flow Moisture • Air containing moisture is separated and removed from the system. • Processed solid material is output from the bottom of the cyclone Product

  14. KDS MICRONEX™ Physical Characteristics • 18’ (h) x 14’ (l) x 7’ (w) • Footprint 1000 sq. ft. • Weight 9000 lbs. • Motors 250, 45, 2, 2, 2 HP • Electrical 480V, 800 Amp • High grade steel with some stainless components

  15. KDS Micronex™Testing Site

  16. KDS Micronex™Process Process Results Input Output

  17. KDS Micronex™ ApplicationsContainer Glass • KDS Micronex™ is the only machine known to us that can produce sub-micron glass powder, in bulk quantities. • Powdered glass can be used as a replacement for silica fume cement an brick manufacture or as a filler for various other coatings.

  18. KDS Micronex™ ApplicationsContainer Glass

  19. KDS Micronex™ ApplicationsLimestone • American limestone producer in Washington State uses KDS Micronex™ machine for limestone milling. • Powdered Limestone is used in cement manufacturing and flue gas desulfurization (FGD). • Client reports that the KDS Micronex is competitive with other size reduction methods.

  20. KDS Micronex™ ApplicationsLimestone FASC Client's Production Figures

  21. KDS Micronex™ ApplicationsLimestone

  22. KDS Micronex™ ApplicationsGypsum Gypsum plant in California used KDS Micronex for gypsum grinding.

  23. KDS Micronex™ ApplicationsGold Ore • Patented process mechanically separates gold and avoids the use of toxic chemicals. • Gold stays in KDS chamber when gold ore (quartzite) is ground to 30 microns. • Waste rock is conveyed out of KDS. • Research under way to improve operating efficiencies

  24. KDS Micronex™ Applications Zeolite, Glacial Clay, Coal Zeolite is used in fast drying concrete mixtures Glacial Clay is used in cosmetics, face creams.

  25. KDS Micronex™ Applications Paper Sludge • Two kinds of Paper Sludge – Primary/Secondary (P/S) Sludge and De-inking Sludge • P/S Sludge comes from wastewater from paper pulp-making. Has bacteria. MC = 80 % • Deinking sludge results from recycled paper manufacturing. It is 25% clay (kaolin). MC = 50 %

  26. KDS Micronex™ Applications Paper Sludge Comparison • Both kinds contain burnable fiber, but are too wet to burn on grate or in dust burners. • Both can be directly applied as fertilizer, but this can lead to respiratory problems and water pollution. • Paper Sludge is usually landfilled at $17-35/mT + $0.1/mT/km transportation cost.

  27. KDS Micronex™ Applications Paper Sludge Comparison • Drying sludge reduces landfill costs. • Dried paper sludge can be used to make sound-absorbing material, cattle-bedding. • Dried paper sludge is burnable in grate or dust burner.

  28. KDS Micronex™ Applications Glacial Clay 975 kJ/kg is only 42 % of the latent heat of water! Drum Dryer would need 3700 kJ/kg of water.

  29. KDS Micronex™ Applications Oyster Shells • FASC has processed Oyster Shells with excellent results. • Fine, bone-dry powder is produced. • Up to 3 TPH of possible.

  30. KDS Micronex™ Applications Summary • Sub-micron glass powder can be made cheaply in large quantities • Limestone and gypsum can effectively be ground to solution grade • KDS dries deinking sludge with 74 % LESS energy than drum dryers • Chemical-free gold extraction system being commercialized

  31. KDS Micronex™ Summary • The KDS Micronex™ provides a simple, compact, low cost and easy-to-operate solution for fine grinding and drying. • Proven applications include sludge drying, grinding glass and soft-rock minerals and preparing biomass fuels for power production. • The machine can quickly pay for itself, by creating high-value end-products, reducing processing and disposal costs.

  32. Reduction System For more information contact: First American Scientific Corp. Tel: +1-604-940-6220 Fax: +1-604-940-6221 Toll Free: 1-800-561-8656 Email: help@fasc.net Web: www.fasc.net

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