Cheyenne Ranger: A good friend and I just started combining our efforts in processing our scrap. He supplies wheel weights and I the plumbers lead. We process a five gallon bucket of WW in about an hour to hour and a half. (We haven't weighed the results.) We are always seeking to streamline the process and are now using a turkey fryer burner and base (a returned item at Walmart patio center - $25 and included a scratch and dent turkey pot and lid), propane tank from the BBQ, cheap steel ladle and broad skimmer from a kitchen supply store, and are melting in the bottom half of a 50 cal. ammo can. We also 'suit up' with long-sleeves, hats, goggles and/or face shields, boots, and welders' gauntlets. (Having emptied a 20# pot with a steam explosion in my distant and ill-spent youth!)
The 50 cal. can was an experiment that worked so well we've continued with it. (He has a large supply of rough cans available.) The ammo can, being thin, heats almost immediately, yet is durable (and easily replaceable). We are pouring our first ingots in 12-15 minutes after placing the can on the burner. Subsequent 'batches' are somewhat quicker. The melt is handled with locking pliers (no slipping!) and we use as many ingot molds as are available (usually at least three). To speed the melt, always leave an inch or so of melt in the can to quickly transfer heat to the next batch of scrap. We usually fill the can no more than about 40% full of melt - easier and safer to handle. The system is working well and having a partner is much faster, probably safer, and more pleasant.
Re filling the pot is about the most aggravating aspect; we've been doing it by hand with the ladle and skimmer. The small shovel seems like a better/faster/safer method. We'll try it. Anything to 'get a bigger scoop' and be able to place it carefully.
Good thread.