| 摘要 |
<p>The invention relates to a process and an apparatus for the heating of a carbonisation rotary kiln (1), in particular a carbonisation rotary kiln (1) for low-temperature carbonisation. In this process, heating gas heated in a heat exchanger (10) is passed in a heating-gas cycle (9) from the heat exchanger (10) over the carbonisation rotary kiln (1). A heat sink (12) is present for cooling the heating gas. To control the supply of energy to the carbonisation rotary kiln (1), provision is made for the heating gas to be returned, at least partially and in a controlled manner, via a bypass pipe (1), in which the heat sink (12) is situated, past the carbonisation rotary kiln (1) to the heat exchanger (10). Provision is also made for the heating gas to be able to be returned, partially and in a controlled manner, via the heat sink (12) to the carbonisation rotary kiln (1). Distribution of the heating gas to a maximum of three paths is ensured by an arrangement of pipes and control members (15, 16, 18 and 19). <IMAGE></p> |
