| 摘要 |
The invention relates to a drying mill for powdered or fine-grained material, in particular also suitable for calcining gypsum. A nozzle ring surrounding the comminuting device, which is a centrifugal disc, from below is provided for feeding fuel gas into the working chamber. As a result, the calcining process in particular is assisted in an efficient way by utilizing the thermal energy of the hot gas fed into the working chamber by means of the nozzle ring and the dwell time in the working chamber. The invention also relates to a corresponding comminuting method. |
