Method for roasting pollution-free refined lime using after heat of brick-making by coal gangue
The present invention provides a method for roasting pollution-free refined lime by using waste heat in the course of brick-making with coal gangue. It is characterized by that the dried coal gangue green bricks and limestone are respectively placed on kiln cart and are kilned, its kilning temperatu...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention provides a method for roasting pollution-free refined lime by using waste heat in the course of brick-making with coal gangue. It is characterized by that the dried coal gangue green bricks and limestone are respectively placed on kiln cart and are kilned, its kilning temperature is at least 1000 deg.C, and its roasting time is at least 44h., and then the above-mentioned materials are taken out from the kiln, and thus the invented pollution-free refined lime can be obtained. |
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