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Published byBertram Little Modified over 9 years ago
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On-line Sorting Technologies for CCA Treated Wood Sarasota Team Meeting February 27, 2001
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Objective To design and implement an automated system to effectively sort CCA-treated wood from other wood types at C&D facilities
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Project Tasks Task 1: Construct Shelter Task 2: Construct Conveyor Task 3: Lab Test and Develop Detector Task 4: Install and Field Test Conveyor & Detector Task 5: Operate Sorting System and Document Performance
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SHELTER
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Outline Participants and Schedule Construction process Completion of shelter
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Participants Metal shelter design, fabrication and assembly – Trident Concrete slab design – Sarasota County Concrete form – Meyer and Gabbert Concrete pour, anchor bolts and project management – Anderson and Ellis Electrical – Claxton Electric
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***Control room and final electrical wiring installed on January 23, 2001
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Construction Process Concrete form Electrical Conduit Installation Concrete Pour Shelter Assembly Electric Wiring Installation
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Concrete form completed December 21, 2000
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Electrical conduit installed December 27, 2000
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Concrete Pour December 29, 2000
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Shelter Assembly 01-06-01
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Electrical wiring installation 1-23-01
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Control Room Completion Interior control room built with recycled materials (from on-site) by Meyer and Gabbert Control room will be finished by carpenter –Outside painted (off-white or taupe available) –Roofed (shingles available?) –Recycled wood paneling on interior –Door knob –Shelves –Cleaned
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CONVEYOR
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Conveyor Conveyor Manufacturer American Conveyor
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CCA-TREATED WOOD INCLINE CONVEYOR OTHER WOOD TYPES ROLL-OFF 30’ 2.5’ 4.5’ 2.5’ 10’ 26’ 5’ 10.5’ Horizontal Guide to Align Wood 1’ Electric Panel for Conveyor ROLLER CONVEYOR BELT CONVEYOR 40’ North Incoming Mixed Wood SPUR CONVEYOR 7’ Roof Support Column 10’ 45 o 4’ Shear Arm Conveyor Layout: February 6, 2001 Control Room
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Conveyor – Cross Section
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Conveyor Design Table Holding arm X-ray Wood
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Cross-Sectional View X-rays Detector mounting Alignment Arm Wood Piece Conveyor Surface
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DETECTOR
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Laser-Induced Breakdown Spectroscopy (LIBS)
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LIBS spectrum of CCA-treated wood
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LIBS-based sorting of CCA-treated wood
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LIBS detector: Tasks and status Acquire laser and spectrometer components Interface spectrometer to the computer for data acquisition with external triggering Optical configuration design and design of detector package Construct prototype detector system Synchronize spectrometer data acquisition with firing of laser Construct timing delay circuit
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Optical configuration: Lens design laser beam laser beam longer, less intense focus shorter, more intense focus
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Optical configuration: Lens design Sample analysis regime Laser beam Beam expander
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Optical configuration: Lens design Analysis Region
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Spectrometer-computer interface Plasma emission Fiber optic Laptop computer Spectrometer Ext. trigger from laser Data acquisition and analysis
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Instrument synchronization Time0-16 us Laser pulse (10 ns) Plasma emission (25 us) Chromium emission (10 us) Detector
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Questions? www.eng.miami.edu/~hmsolo/sarasota/index_sara.htm
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