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Could you cut incinerator running costs by 50 percent?

by 5m Editor
7 September 2004, at 12:00am

UK - As the pressure is now on for pig producers to make sure their incinerators are fully compliant with the new animal-by-products rules, many are investing in a new type-approved model, and even more are thinking (but cannot quite bring themselves to take the plunge) about buying a new model.

National
Pig
Association

National Pig Association
THE VOICE OF THE UK PIG INDUSTRY

NPA is active on members' behalf in Brussels & Whitehall, and with processors, supermarkets & caterers - fighting for the growth and pros-perity of the UK pig industry.

But which model will give the cheapest running costs for your purposes? This is proving no easy question to answer because of the many variable involved. Producer Mike Sheldon points out that obviously the greatest factor influencing running costs is mortality, particularly finishing mortality.

But there is also the question of how full an incinerator is whhen a burn is initiated. Too empty and the burn will be inefficient because the required temperature will be hard to reach; too full and the burn will be incomplete and the process will have to be repeated for at least part of the load.

Other points to consider...

Has the burn cycle length been correctly set? It is only too easy to set the cycle too long, so that the material to be burned is consumed well before the end of the cycle.

Has the right amount of ash been left in the incinerator? About 5cm in the bottom will soak up fat dripping from the new load when burning. This fat/ash mix will burn and contribute to the internal temperature. If there is no ash, the fat will run out of the incinerator, which means a loss of free fuel, and a mess.

Mike Sheldon's personal experience is that attention to detail can reduce fuel costs by perhaps as much as 50 percent. If this is the case any other observations that producers have to offer will be gratefully received. Please send you thoughts here.

Source:National Pig Association - 6th September 2004

5m Editor