making charred materials
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Jacky Foo
Aug 21, 2007, 11:21:14 AM8/21/07
to iobb-dark...@googlegroups.com
On 21/08/07, arclein <arc...@gmail.com> wrote:
>Right now, we are speculating. I would actually build a circle with
>the roots on the outside and see if it is possible to build a beehive
>shape as an experiment. I would leave a central chimney, .....
This sound like a charcoal kiln.
I do like your idea of building it into a "beehive shape" kiln ("igloo shape" to me since there are many shapes of beehives). It will also help shape the kiln esp for the first time as it will be easy to pad the roots of the stover with mud.
For the second run, I believe mud needs to be plasted on the inner side of the kiln and unburnt roots will help hold the walls and roof (?). More mud on the outside would make the walls of the kiln stronger.
YES.....I will pursue this for the Children's Village of Kenya in the future (and with the help of a Kenyan who knows how to make charcoal).
arclein wrote:
>....because I had to, and fill the bottom of it with a well stamped mass
>of biowaste. Once the beehive had reached the point of almost been
>closed off, I would throw a large mass of coals into the chimney and
>then fill the chimney with corn stover and dirt.
>Then I would stand by and shovel dirt on any breakthrough for the next
>few hours.
where is your point where you would start the fire ?
regards
jacky
>Right now, we are speculating. I would actually build a circle with
>the roots on the outside and see if it is possible to build a beehive
>shape as an experiment. I would leave a central chimney, .....
This sound like a charcoal kiln.
I do like your idea of building it into a "beehive shape" kiln ("igloo shape" to me since there are many shapes of beehives). It will also help shape the kiln esp for the first time as it will be easy to pad the roots of the stover with mud.
For the second run, I believe mud needs to be plasted on the inner side of the kiln and unburnt roots will help hold the walls and roof (?). More mud on the outside would make the walls of the kiln stronger.
YES.....I will pursue this for the Children's Village of Kenya in the future (and with the help of a Kenyan who knows how to make charcoal).
arclein wrote:
>....because I had to, and fill the bottom of it with a well stamped mass
>of biowaste. Once the beehive had reached the point of almost been
>closed off, I would throw a large mass of coals into the chimney and
>then fill the chimney with corn stover and dirt.
>Then I would stand by and shovel dirt on any breakthrough for the next
>few hours.
where is your point where you would start the fire ?
regards
jacky
arclein
Aug 21, 2007, 3:43:31 PM8/21/07
to Dark Earth Soils
I would start the hot spot in the bottom of the chimney. It would
have to be compact so that the coal mass did not fall apart too soon.
That also suggests that it should not be too far of the ground. The
design should also encourage the material to tend to collapse toward
the fire.
have to be compact so that the coal mass did not fall apart too soon.
That also suggests that it should not be too far of the ground. The
design should also encourage the material to tend to collapse toward
the fire.
On Aug 21, 8:21 am, "Jacky Foo" <jacky....@gmail.com> wrote:
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