Dowling Incinerator | Waste Burner
Burn more, in less space, and last longer!
Since the scourge of Foot and Mouth, it has been deemed prudent to dispose of organic waste matter on the farm. Simply burying it, however, does not remove the danger of contamination. One sensible answer is small scale incineration. With this in mind we have developed the waste burner.
0.6, 1.2 and 2.4 cubic metres.
All of these can burn up to 50kgs of waste per hour, depending on the waste. Constructed in steel and using some of the reshaping principles that we have developed for our domestic stoves, this incinerator / waste burner has all the robust qualities that you would associate with Dowlings.
Using the principles of volume reshaping that makes our stoves so effective, we've come up with this design. It makes for a massive loading door and causes the charge to collapse to the fire base for a really good burn.
It operates in effect like an enormous multi-fuel stove, but will handle a variety of organic refuse. The internal temperatures achieved ensure a more through and thus 'cleaner' burn than ordinary open incinerators.
The particular shape of this burner derives from our Little Devil
multi-fuel stove; by tilting the combustion chamber at 45% we make
much better use of space and can incorporate an enormous loading door, which acts like a hopper.
The heavy spiked grate 'agitates' the fuel which riddles down to the
ash pit below. Primary air is introduced through the access plate
in the base.
Siting the Incinerator
Should not be within 50 metres of habitation, set on open concrete
or other washable hard standing. If there is not proper drainage to
cope with any effluent, sufficient cover should be provided to keep
the whole unit and base dry enough to allow sawdust to absorb
any
effluent effectively.
Operation
The incinerator is essentially just a scaled up multi-fuel stove, light with paper and kindling. If there is a high moisture content in the materials to be disposed of (e.g. organic waste) we’d recommend building a fire base of logs and / or coal.
There should be sufficient heart in the fire to burn off or evaporate liquid or moisture content as it is loaded. Should any liquids leach out the bottom of the ash door, there must be proper drainage to cope with it or sufficient sawdust to soak it up, which in it’s turn should be returned to the incinerator for burning.
We recommend ‘roasting’ the fuel charge before opening up theair intake and damper for the full burn. This might be anything from 20 minutes to 2 hours, depending on the size and moisture content. Roasting allows higher temperatures to be achieved for a more complete burn as well as rendering fats from organic material into a high temperature fuel to assist with the burn.
Occasional agitation (operated by the side lever) will help oxygenate the charge once it is roasted. Good operation can be gauged by the amount of smoke released through the stack, obviously the more complete the burn, the less smoke will be produced.
The same procedures should
be followed on re-filling while alight as on the first loading: close
the air intake (i.e. bottom door) and
the flue damper until the charge
is judged to be dry enough for the full burn.
Never open the ash drawer or the loading door without first opening the flue damper.
Like much of our work the ideas and design are a combination of drawing office and shop floor.
Paul Siddle (Pictured right) built this prototype and had a big influence on the finished product.
Naturally we apply the heavy construction techniques associated with Dowlings - 50% heavier gauges than anything else we've seen on the market..
| Model (Steel gauge) | Volume | Height | Width | Depth |
|---|---|---|---|---|
| 0.6 (6mm) | 0.6 cubic Metres | 1100 | 1000 | 1150 |
| 1.2 (8mm) | 1.2 cubic Metres | 1450 | 1250 | 1500 |
| 2.4 (10mm) | 2.4 cubic Metres | 1850 | 1500 | 1800 |