A new Box-Kiln was developed in 2019/ 2020
more information will follow soon....
This Box-Kiln should replace the common Ring-Kiln made from a round metal sheet.
This is not a retort kiln which burns most of the volatiles-
however, it might be possible to integrate an afterburner?
This Box-Kiln was filed under Intellectual Property Protection and it should not be build without the inventor's consent (Ch.ADAM).
Check my YOUTUBE Video Clip on the Box-Kiln:
Round steel kiln (Ring Kiln) |
Box-Kiln (adam-design) |
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disadvantages | advantages | |
Complicated Construction: needs a sophisticated metal workshop, as a roller-sheet bending machine is needed to bend large metal sheets into a circle shape. |
Simple Construction: simple construction in any village workshop, just (extensive) welding and no sheet needs to be cut. |
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Operation by more persons: it needs 2 or more persons to lift and remove the lid and upper ring of a round steel ring. |
Operation by a single person: a single person can tilt the Box-Kiln because of the counterweights to ease tilting (option: if money needs to be saved, skip the counterweights) | |
Biomass (wood) needs to be cut short into short pieces of different length- according to the variation of a cross-section of the kiln. | Biomass (wood) can be used in one standard length (about 2 meters). | |
Medium efficiency which is not really enough to justify and benefit all the investment |
Higher efficiency because of the top of the Box-Kiln can be easily insulated by a removable lid/cover. For quick cooling, the lid/cover can be removed. |
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Medium volume (2,5m³) for filling with biomass |
High volume for filling with biomass, about 4m² if 1m x 2m metal sheets are used |
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Difficult access to recover the charcoal, as the charcoal needs to be taken out from the deep hole if the kiln. |
Easy access for loading the biomass and offloading of the charcoal, as the box will be tilted upwards to ~90° |
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dt. | With some small modification- trials for an integrated afterburner within the box can be made- for clean combustion of the wood gas | |
dt. |
Box-kiln can be loaded on a pick-up f transport |
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dt. |
Quick construction within a few days |
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none |
Already registered under the “Intellectual Property Law” to save the project's investment.
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Just for comparison :
A professional charcoal producer from PAKiSTAN claims a low efficiency of 10% for his brick kilns and an operation time from 12 to 15 days!
(Making Charcoal in Pakistan | How to make charcoal).
He claims to buy the wood and sell the charcoal for 10 x more (increase in value) ....
https://www.youtube.com/watch?v=huCy5pnn--E