[Stoves] Biochar retort

[Lanny Henson]

You may be able to pick up a used industrial drier, They are common and there is a lot of used equipment, due to loss of industry to foreign competition.
Offer the scrap price or 2x scrap and free removal!
The heated surface area of the drum is larger being heated from all sides and the material comes into contact with the walls of the drum as it tumbles.
Lanny
  ----- Original Message ----- 
  From: Alex English 
  To: Discussion of biomass cooking stoves 
  Sent: Tuesday, October 29, 2013 10:49 PM
  Subject: Re: [Stoves] Biochar retort


  "Tried" indeed. 

  1. Include an engineered explosion vent!
  2. Loose straw chars quickly and quenches quickly. Tightly packed straw doesn't.
  3. Small devices are much cheaper learning experiences, and require smaller explosion vents:)

  Retorted,
  Alex



  On 29/10/2013 10:03 PM, Crispin Pemberton-Pigott wrote:

    Dear Alex E



    I think you should make a comment here. And perhaps pass along some of the photos of Canadians burning gigantic things on farms.



    Mike, Alex English has tried more things that most people imagine.



    Regards
    Crispin



    I am looking to build a GIANT retort.  I have an unlimited supply of compressed wheat straw bales (approx. 500,000lbs per yr).  They measure 4'x5'x3' and weigh about 400lbs each.  I am wanting to build a retort large enough to hold anywhere from 1 to 10 of these bales, probably horizontally.  My question is will these bales fully pyrolyze "as is" with perhaps a few inches of airflow on all sides and between bales inside the retort?  

    Thank you,

    Mike


     

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