Trash Can
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Single-35 Quart- Pull-Out – Trash/ Waste Container System w/ 1- Black Can $68.95 |
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ASTRO BOY McDonalds Happy Meal Toy Lot (6) mint Zog Trashcan Launcher Flying M $1.99 |
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TABASCO PEPPER SAUCE -Avery Island La. – UNUSED TRASH CAN -Shows Pepper & Bottle $14.99 |
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NEW Sliding Trash Can 16in Each Cabinet Organizers C29517 040071120610 $66.46 |
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1997 SAN FRANCISCO 49ERS ~ NFL 19 Inch Wastebasket Trash Can for Man’s Room $7.99 |
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Nine Stars 12 Gal Toe Tap Trash Can Stainless Steel ..Brand new $45.00 |
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Vintage retro avocado green rubber trash can $9.99 |
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TOUCHLESS SENSOR TRASH CAN 13 GALLON w/ 3 YR. WARRANTY $125.99 |
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Spiderman trash can 1979. Marvel Comic Super Hero. Tin Litho NR $0.01 |
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NEW BLACK WHITE POLKA DOTS WASTEBASKET TRASH CAN $19.99 |
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INFRARED SENSOR AUTOMATIC TOUCHLESS TRASH CAN 13 GALLON $69.99 |
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Double Laminated Commercial Restaurant Trash Can Receptacle Bin $374.95 |
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Vintage Tole Hand-painted ROSES on Black Metal 12″ Trash Can – very nice, 1950s $7.99 |
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3pc Stainless Bathroom Accessory Set Soap Dispenser Waste Trash Can Toilet Brush $27.00 |
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Star Wars The Clone Wars Waste Trash Can w/Step Top Animated TV Series 11″x8″ $13.49 |
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2 Graduation Trash Can Covers Decorations Party Favors Games Supplies $6.99 |
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Moose 2011 Trash Pack Orange GERM WORM RARE Trashie Figure & Can $1.99 |
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LONGABERGER BASKET TRASH CAN USED PLASTIC LINER GREAT LOOKING WASTE CONTAINER !! $65.00 |
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VINTAGE FOREIGN POSTCARD CHILDREN BOY GIRL PURSE TRASH CAN TOWN BUILDINGS STORES $4.00 |
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Vintage Fisher Price Little People Sesame Street Oscar Grouch & Trashcan # 938 $13.99 |
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Auto Garbage Bin Car 2-Way Open Trash Can Gray Black $13.07 |
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UNUSUAL Vintage Gold Metal Waste Basket Trash Can Butterflies Hollywood Regency $24.99 |
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VINTAGE CHIPPY PAINT METAL GREEN BUCKET INDUSTRIAL PLEATED TRASH CAN POT SHOP $24.40 |
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Auto Car 2 Way Open Black Baby Blue Plasitc Trash Can Garbage Bin $13.58 |
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VINTAGE TIN DECO ART TURQUOISE AQUA TRASH CAN WASTE BASKET HAND PAINTED $10.49 |
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VINTAGE EAMES ANDY WARHOL ERA POP ART CAMPBELL’S SOUP TRASH CAN MID CENT MODERN $96.20 |
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~~MINT~~ – Vintage White Gilt Florentine Italy Italian Trash Can Waste Basket $24.99 |
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VINTAGE VOX V846 WAH PEDAL MADE IN ITALY ORIGINAL TRASH CAN INDUCTOR $488.00 |
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ARTS CRAFT EAMES WOOD WASTE BASKET TRASH CAN PLANT STAND RETRO MID CENT CUT OUT $62.50 |
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1976 Cadillac Fleetwood Car Trash Can Gray $24.99 |
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T.L.C. WWE Jakks Pacific accessories – 2 Chairs 1 Table 1 Ladder & 1 Trash Can! $11.50 |
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OSCAR the GROUCH in Trash Can Coin BANK Sesame Street $9.95 |
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GARBAGE PAIL KIDS 6th SERIES 6 233b TRASH-CAN KEN kenny $1.79 |
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Vintage Spaghetti Resin Lime Green Waste Basket Retro Trash Can $35.00 |
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New Rubbermaid Slim Jim Trash Can Swing Lid #2673 Gray $20.00 |
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VINTAGE WOOD WICKER PLANT HOLDER BASKET 10″ POT TRASH CAN STAND TIKI RATTAN $14.40 |
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MID CENTURY MODERN WALNUT TRASH CAN WOODEN COLUMN STAND OFFICE LIBRARY EAMES ERA $82.80 |
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VINTAGE LG WOOD WICKER WOVEN PLANT HOLDER BASKET TIKI RATTAN TRASH CAN OLD STAND $16.60 |
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VINTAGE RATTAN WOOD WICKER PLANT HOLDER BASKET 12″ POT TRASH CAN STAND TIKI $16.20 |
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Moose Log Cabin Metal Wastebasket Trash Can Western Log Cabin Bath Decor $37.95 |
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USC Trojans NCAA Collapsible Trash Can $34.95 |
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RACCOON KISSING TRASH CAN SALT & PEPPER SHAKERS PT $9.89 |
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Trash Pack Series 2 148 Sludger = RARE with Trash Can Loose NEW $4.99 |
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Two- 35 Quart-White Trash Cans with Green Lids- Item # Can35 $49.99 |
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Vintage Blue Metal Office Trash Can Wastbasket with Sailing Ship $45.99 |
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FISHER PRICE OSCAR THE GROUCH TRASH CAN 1977 PULL TOY 177 VINTAGE SESAME STREET $9.99 |
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Antique Machine Age Primitive Wire Trash Can Large Industrial Basket $49.99 |
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26 Packs 1992 Topps Trashcan Trolls Trading Cards Stickers Retro lot Mint no res $4.99 |
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10 Gallon Trash Can Large Stainless Steel Hand Off Foot Step NEW Wastebaskets $144.95 |
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Tupperware Container Tote Crafting sewing trash can # 1430-5 3pc Large Capacty $29.45 |
Trash Rakes – Advantages of Automated Trash Rack Cleaning
Trash rakes have existed since the first hydroelectric power plants were developed. Used to clean the intake racks that prevent debris from entering the plant, trash raking can be done as either a manual or automated process. While manual cleaning is still commonly used, automated systems are becoming more widely used because of their increased efficiency and lower operational costs.
Challenges in Cleaning Trash Racks
Trash rack cleaning poses many challenges to the operators of hydroelectric plants. As outlined in Civil Works for hydroelectric facilities, published by the American Society of Civil Engineers (ASCE) in 2007, these problems include:
• Siltation, which occurs when twigs, branches and leafy materials are not removed properly, causing an increase of sedimentation on the trash rack.
• Lower efficiency, caused by a damaged raking arm or misaligned trash rake.
• Damaged cables or pulleys.
• Inadequate lifting capacity.
• Inability to reach the bottom of the trash racks. (Hand raking is limited to depths of 6 to 8 feet below the water’s surface.)
One of the key solutions suggested in this book, beyond repairing damaged parts, is to upgrade manual operations to an automated system. The book cites an example from the Racine Hydroelectric Project on the Ohio River. It notes the benefits of changing to an automated system: “… it reduced [the] overall operating costs of raking trash, trash disposal, and lost generation.”
Design of Automated Trash Rack Cleaning Systems
The book Guidelines for Design of Intakes for Hydroelectric Plants talks about the design of automated trash rakes. There are a couple of designs available:
• A hydraulically driven chain system pulls raking fingers through the trash racks.
• A fully hydraulic arm trash rake consists of a boom that lowers the rake head into the water. In advanced models, a hydraulic cylinder tilts the boom to apply the rake at a constant pressure to ensure thorough cleaning.
Automated trash rakes can handle debris with great efficiency, either by dumping it on the forebay or intake deck, or through a conveyor or trough. Automated raking systems can be initiated based on time or a head differential. A buildup of trash creates an increased differential head across the trash rack; the rake begins operations when a specific level is reached. Automated systems can also be initiated manually by an operator who can watch for certain conditions and trigger the rake when necessary.
The Benefits of Automated Trash Rakes
Automated trash rack cleaning has been proven to improve efficiency and reduce costs. The Racine experiment, cited above, is just one example. In Europe, Verbun upgraded its hydroelectric plants along the Mur River with fully automated systems in 2005. The plants have been unmanned ever since and working very efficiently.
Operator safety is another benefit of automatic systems. Manual trash raking is inherently risky, and automated systems reduce that risk.
Overall, automated trash rakes offer many operational and financial benefits. Evidence of these benefits can be seen in the upgrades being done to hydroelectric plants around the world, and in the ACSE recommendation that upgrades from manual to automatic systems are one of the best ways to overcome the challenges of trash rack cleaning.
About the Author
For more information on
Trash Rake
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