Dave Dickey Forum Moderator 283 Posts
Re: What if we can't use a top-mounted mixer?17 August 2011 at 1:29pm
A mixer for this application sounds nearly impossible. If a mixer cannot be mounted on the top, then the next option is a side-entering mixer on one or both ends. Such a mixer must have a submerged seal that will tolerate 600 to 700 deg C. A seal for such high temperatures needs to be cooled and may encounter wear from the waste. Even a submerged mixer must be selected to avoid interference with the internal heaters.
The only other option that seems reasonable is a pumped recirculation loop, withdrawing waste from one end of the tank and returning the flow to the other end. With that arrangement, additional heating could be provided by a heat exchanger in the recirculation loop. A pump operating at those temperatures in a waste material is also going to encounter seal problems.
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