| 摘要 |
<p>Shaft arrangement for thermal and/or material transfert processes between a gas and a flowing bulk material, wherein the shaft is divided by grates (2) into chambers (3) which are partly filled with plane heaps (4) of material. In the wall of the shaft (1) there are provided free passage openings (12, 13 respectively 14, 15) for the gas to be entered into at least certain chambers and to be evacuated from other chambers. The heaps traverse the shaft (1) in a discontinuous way. To this effect, all the grates are formed at least partially with moving grate bars which may be taken out temporarily from the plane of fixed bars by a drive device so as to generate a uniform dripping flow and to form on the following grate (2) a heap (4) having the same thickness with respect to the section surface of the shaft. The grates (2) may also be comprised of fixed bars parallel between each other with slit lamellae arranged on top and inclined with respect to each other in a roof configuration, and of which one is fixed and the other one may pivot.</p> |
