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Show DEVELOPMENT AND COMMERCIALIZATION OF AN EFFICIENT CYCLONIC INCINERATOR FOR WASTES J. Crimmins, Mechanical Engineer M. Khinkis, Manager, Applied Combustion Research V. Kunc, Assistant Engineer Institute of Gas Technology and Dr. J. Korenberg, Vice President, R&D C. Reider, Associate Research Engineer York-Shipley, Inc. INTRODUCTION Commercially available methods to incinerate liquid (and gaseous) waste use a variety of techniques that include combustion chambers with low swirl, rotary kilns, and fluidized bed combustors. The main drawbacks of these commercial methods are: 1. High operating cost due to high auxiliary fuel usage 2. Low-intensity combustion 3. High excess combustion air requirement in order to achieve high combustion efficiency 4. Low thermal efficiency of heat recovery equipment (excluding fluidized-bed incinerators) 5. Inability to maintain stable, continuous operation when molten ash is present in the products of combustion 6. Inability to separate ash from combustion products efficiently in the combustion chamber 7. Short refractory life when molten slag is present in combustion products due to erosive and corrosive effects of the slag 8. High capital cost due to relatively large combustion chamber and/or design complexity. Cyclonic incinerators featuring small chamber size, low excess-air operation, and high-intensity combustion characteristics have been under investigation in recent years in an attempt to eliminate the above-mentioned shortcomings. Investigations of advanced, high-intensity combustion cyclonic incinerators have revealed certain operating features that promote stable, long term, highly efficient operation with minimum operating expense. Some of these characteristics are - 2 |
