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Question:

how do you separate aluminum cans from plastic cans using a 2 meter conveyor belt?

I have to separate plastic, aluminum, metal, and paper in two four pileswe know what each item that we are required to separate; 3 empty Campbell soup cans (305 grams sized can), 3 empty aluminum pop cans (355 mL size), 3 empty water bottles (591 mL), 2 square of corrugated cardboard cut into 12 cm x 20 cm squares, 2 full pages of newspaper folded into 12 cm x12 cm squares.it can be hand cranked or small motor poweredThe hard part is we have to rebuild it in 20 minutes at the site and it can only weight 30 pounds, length of 150 cm and width of 60 cmhelp me please.

Answer:

I suppose it has value as an academic exercise, but a typical waste stream has 4000 variables instead of 4 or 6I suppose you can adapt web cams to look at the belt and a computer program to compare that to images of the desired items stored in the computer memoryMultiple views will have to be stored as several orientations are possible for each itemMy guess is lots of selection errors if there are thousands of other items mixed with the 6 desired items in high densityYou will need at least one reduced scale Canada arm to grab the items selected as they pass at perhaps 0.1 meter per secondSounds expensive and the development time is longer than you likely haveAvailable miniature Canada arms will be incredibly expensiveSelecting by image has the advantage that even half full items will be selected along with the emptiesSquare newspaper will be rare in most waste streams as will 12 by 20 cm pieces of corrugated cardboardWind gusts may unfold the newspaper, and push other items off the conveyor beltNeil

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