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DE600554C
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Agitator for mechanical multi-level roast ovens with rotatable roast ovens
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DE621190C
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Air cooling for mechanical roast stoves based on the de Spirlet principle
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DE521308C
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Drive of the agitator of Ringoefen
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DE522423C
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Agitator for mechanical roasting stoves
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DE505581C
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Agitator with air cooling
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DE491729C
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Supply of fresh air into the roast chambers of mechanical Muffel Roestoefen, especially those with a high roest space
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DE489485C
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Roestgasfuehrung in Roestoefen for zinc blende and for other sulfur-containing ores
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DE485619C
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Drive for agitators on Roest-OEfen
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ES106413A1
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Mechanical kiln for calcination.
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DE549710C
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Process and device for roasting zinc blende and other sulfur-containing ores
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DE485618C
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Agitator with air cooling for roast stoves
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DE526704C
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Air-cooled stirring arm for mechanical roasting ovens
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DE505583C
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Air duct for mechanical roast stoves with air-cooled agitator
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DE549821C
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Preheating chamber for ovens for roasting zinc blende
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DE486316C
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Mechanical roast furnace with several horizontally stacked roast chambers
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DE484193C
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Agitator for mechanical roasting stoves
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DE482511C
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Mechanical roast oven
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DE502322C
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Roestofen for zinc cover
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DE509306C
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Device for dead roasting fine-grained or powdered roast material
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DE483427C
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Agitator tooth for ovens for roasting zinc blende
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