Rolf's previous photos of the Jensen woodchoppers are here: http://gasifiers.bioenergylists.org/uhlejensenchopper - Erin Rasmussen [email protected]
-----Original Message----- From: Energies Naturals C.B. [mailto:[email protected]] Sent: Tuesday, January 07, 2014 8:34 AM To: [email protected] Cc: energiesnaturals; Discussion of biomass pyrolysis and gasification Subject: Chunking wood for small scale biochar production, fotos ! On Thu, 02 Jan 2014 01:43:37 +0100 energiesnaturals <[email protected]> wrote: > Hello chunkers, > > For small manual chunking devices I cannot help much, but I see that there is also some interest in more mecanized solutions. > > At least in Europe you can still find many of the old Jensen woodchoppers with 6 and 12 cm long chunks produced and up to15 cm diameter. > > I remember putting a series of fotos on the list some years ago, > perhaps on the bioenergy list. > > Have a good year! > > Rolf > > > > > Enviado desde Samsung tabletDavid Coote <[email protected]> escribió:An > inexpensive tool to chunk efficiently wood for small scale biochar > production would be very handy. I have loads of waste woody biomass on > my farm. There's no community scale biomass energy plants in the > northern hemisphere sense in Gippsland (SE corner of Australia) so no > local markets of this nature for the material. This may change in the > next few years but in the interim I'd like to make some char as a > weekend project. One of my nephews is a qualified boiler maker with > tickets for various specialist welding techniques. He's interested in > building a small char system. This would probably be similar to the > popular 44 gallon drum with internal retort (so an indirect > implementation) but using a better quality steel so a bit longer > lasting. And we'll lag the drum, put a safety enclosure around it and so on. > > One of the challenges of trying to do this beyond a hobby approach is > chunking the material to be used for combustion and char. I haven't > got time to lovingly handcarve the feedstock into the appropriate size > and form. Using an axe, saw, firewood splitter, bypass pruners would > all be possible for different sized feedstocks (windthrow, prunings, > thinnings, harvest residue etc) albeit labour intensive. Something > like an old chaff cutter would be very useful for some feedstocks. I > think there are some commercial chunkers that would do what I want but > they are prohibitively expensive > > David > > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bi > oenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ _______________________________________________ Gasification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: http://gasifiers.bioenergylists.org/
