Method and apparatus for burning gypsum
Abstract
Abstract A METHOD FOR BURNING GYPSUM IN A HEATING GAS CURRENT FORMED BY HEATING A GAS IN A CYCLONE BURNING PLANT USING A PLURALITY OF CYCLONES ARRANGED IN SERIES COMPRISES MEASURING THE CRYSTAL WATER CONTENT OF THE MATERIAL WHICH ISSUES FROM THE INDIVIDUAL CYCLONE STAGES AND VARYING THE PORTIONS OF THE TOTAL MATERIAL FLOWING THROUGH THE INDIVIDUAL STAGES QUANTITATIVELY IN ORDER TO REGULATE THE CHARACTERISTICS OF THE END PRODUCT. THE APPARATUS INCLUDES A PLURALITY OF CYCLONE HEATERS IN WHICH THE RAW MATERIAL IS TREATED AND WHICH ARE HEATED BY HEATING GASES WHICH ARE GENERATED IN A COMBUSTION DEVICE AND CIRCULATED IN SERIES THROUGH THE CYCLONE HEATERS. A CONVEYOR IS MOVABLE THROUGH A PATH INTERCEPTING THE DISCHARGES FROM EACH OF THE CYCLONE HEATERS EXTENDING FROM THE HIGHEST TEMPERATURE STAGE TO THE LOWEST TEMPERATURE STAGE AND A MEASURING DEVICE IS ARRANGED AFTER EACH DISCHARGE TO REGULATE THE AMOUNT OF THE DISCHARGE IN ORDER TO VARY THE CONSTITUENCY OF THE MATERIAL FED TO THE CONVEYOR OR IN ACCORDANCE WITH THE CONDITIONS WHICH HAVE BEEN SENSED BY THE MEASURING INSTRUMENTS.
Inventors
- 👤 G Reimann
- 👤 O Wiechmann
Bibliographic Details
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