| 摘要 |
<p>The invention relates to a rotary kiln comprising a rotary vessel with an upper and a lower end, support means to support the rotary vessel in an inclined position, drive means to rotate the rotary vessel, an inlet to introduce material in the rotary vessel, an outlet for the material from the kiln and heating means to heat material in the rotary vessel, wherein the heating means comprise infrared radiating means which are positioned inside the rotary vessel.</p> |
