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Juicing crop feedstock for ethanol - Page 4

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Posted by Curbie on April 18, 2010, 9:46 pm



They seem like fairly straight forward images with a program like "Art
of Illusion", but interesting never-less.

I found his design concept paper sound and had been planning an
outline to test his design, do you think his design is the best
starting point???


Posted by Curbie on April 18, 2010, 6:30 pm

Well after watching maybe 100 videos this morning I choose these two
to illustrate the process I'm interested in.

This video is represents most small presses shown, a two roller press
that requires multiple passes, in all the videos on this type (two
roller) press, the press has been adjusted and the operator re-feeds
the cane though the press manually, sometimes folding the cane in
half, or twisting it, or stacking it with other cane to increase its
volume in order to press it further. This is NOT the type of operation
I had in mind. (25 seconds)

This is one of two presses I found of the three roller type, and they
are single pass machines the closely resembles my three roller design
at a much larger scale. (32 seconds)

Most all the rollers are smooth, except for the spiral grooves which
aren't used in most videos, but in the few videos they are, are used
in the first pass to squish the cane down for subsequent passes in the
smooth section.

I captured the three roller videos to study the gearing and feed rate,
all in all a pretty productive search.

Thanks for you time, ideas, and help.


Posted by Schweik on April 19, 2010, 12:43 am


Out of curiosity, have you investigated sugar mills as they would
appear to do exactly what you want - separate the juice from the
chaff, so to speak. Given that they have been developed of hundreds of
years it might be that they have already solved your problems.



Posted by Curbie on April 19, 2010, 7:36 pm


Yes, Sugar Cane and Jerusalem Artichokes are very different plants,
Sugar Cane being shorter, squatter, and much tougher, the machines
designed to juice them are needlessly powerful for JA.


Posted by Jim Wilkins on April 19, 2010, 2:18 am

Not much point trying to watch those on dialup.

It looks like the top roller floats vertically and its weight sets the
pressure, unless it's pulled down by springs or weights hung below
that aren't visible.

The square-head screws protruding from the ends are a simple way to
key a gear to a shaft, by drilling and tapping straight in along the
joint. It's not the best way but can be done with hand tools.


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