[Gasification] Sawdust in Fan TLUD
phoenix98604 at msn.com
Sun Jun 5 01:10:07 CDT 2011
Thank you for finding out the description of the Osborn Hay Cuber. You are an incredible resource for our listserve. Thank you for sharing your experience of having worked with Glen as well.
Check the price of the Osborn Hay Cuber vs the cost of a Warren & Baerg unit. For small scale production, the gear cuber might have a lower ownership cost per ton than the fancy, dancy Warren & Baerg pelletizer. I know the "depreciation sweat" really broke out when the owners of a Warren and Baerg pelletizer ($$$,$$$) were not running their units 100% of the time.
From: tmiles at trmiles.com
To: gasification at lists.bioenergylists.org
Date: Sat, 4 Jun 2011 22:25:20 -0700
Subject: Re: [Gasification] Sawdust in Fan TLUD
You seem to be describing the Osborn Hay Cuber. US Patent US3963405
We new Glen Osborn very well. He was from Moses Lake, Washington. We used his cuber at the Straw Utilization Center in Corvallis from 1974-1977. We used three Osborne cubers in a facility to treat straw with sodium hydroxide and to cube 10,000 tpy straw for export to Japan. We owned one for several years after that and used it in California, Oregon and Idaho for cubing everything from ensiled food wastes to paper waste for fuel. I’ll have to check to see what our actual production was.
The cuber was robust. It was not as efficient as those made later by Warren & Baerg. It would take a coarsely shredded or ground material and make a fairly hard cube. I am sure that lots of energy was lost in the flailing and mixing action of the gears and feed mechanism. It did run smoothly when you have a uniformly sized material and ran a proper head of material over the gears. Unplugging the dies that are internal to the gears was a challenge.
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