Dowling Incinerator - Waste Burner

    The incinerator comes in three basic sizes 0.6, 1.2 and 2.4 cubic metres. All of which 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

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 this waste burner. 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.

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.

    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.

The open door acts like a hopper... surprising what it will accommodate!!

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 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 the air 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.