| 摘要 |
A powder lime calcining process comprises: transporting fine granules of limestones having a water content less than 4%, and a granule size less than 15mm, from a raw material storing bin to a small material bin, transporting the materials from the small material bin into an airflow pipe by a belt conveyer, heating and drying the materials, sieving the materials by a sieving device, wherein granules having a granule size more than 3mm are transported into a breaking machine for breaking, granules having a granule size less than 3mm are transported into a cyclone cylinder deduster and a clothbag deduster in turn by airflow pipes, the fine powders of limestones after dedusted are transported into an intermediate bin; the materials within the intermediate bin are transported to four preheating cyclone cylinders by a pneumatic lift pump and airflow pipes, and are preheated and separated; the materials after separated are transported into three cooling cyclone cylinders for cooling and separating the materials, finally transported into a finished product bin by a finished product transporting system. The powder lime calcining system according to the present disclosure makes that: the powder lime calcining equipment has a reasonable matching, fine powder materials having a high concentration can be captured effectively, and the returning materials from the cyclone cylinder can be reasonably utilized. |
