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| Patents for F27D 13 - Apparatus for preheating charges; Arrangements for preheating charges (1,413) |
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| 03/08/1977 | US4010935 High efficiency aluminum scrap melter and process therefor | | 01/25/1977 | US4004876 Method of burning pulverous raw material and rotary kiln plant therefor | | 10/19/1976 | US3986818 Device for the thermal treatment of fine granular material with burning means with a heat exchanger system | | 10/12/1976 | US3985497 Scrap preheating system | | 09/28/1976 | US3982889 Preheating system for aluminum remelt furnace | | 09/14/1976 | US3980486 Calcination of pulverous material | | 08/17/1976 | US3975148 Apparatus for calcining cement | | 05/18/1976 | US3957521 Cement, fuels, combustion | | 05/11/1976 | US3955995 Calcination of pulverous material | | 03/30/1976 | US3947238 Method and apparatus for dispersing powered material in a combustion chamber | | 02/24/1976 | US3940236 Methods and apparatus for the heat treatment of fine-grained materials | | 02/17/1976 | US3938949 Method and apparatus for burning pulverulent materials | | 01/13/1976 | US3932117 Method of burning or sintering fine-grain material |
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