| 摘要 |
<p>An installation for the preparation of high-strength plaster from synthetic or natural calcium sulphate (gypsum), characterized in that it comprises at least one endless chain conveyor (13) fitted with tipping pallets (53) which is diverted on return pinions (5) to form at least one upper side (9, 15, 21) and one lower side (11, 17, 23), a feed hopper (27) containing the raw material arranged above the first upper side (9) and a heating device in which the hot gases are propelled into chambers (31 to 39) each of which is arranged between an upper side and a lower side.</p> |
