| 摘要 |
<p>The apparatus serves for the conversion of sewage sludge by pyrolysis into a solid material, which is at least partially composed of activated charcoal, and pyrolysis gas, in which process the moist sludge, with exclusion of air, is conducted through a rotary tube (B) which is indirectly heated by a combustion chamber (C) and brought to pyrolysis temperature. At least a part (46) of the carbon-containing material exiting from the rotary tube (B) is continuously mixed with the wet sludge (66). The vapour formed in the mixing of the wet sludge with the carbon-containing material is heated (102) and fed as superheated steam (104) to the rotary tube (B). The essential parts of the apparatus are the inclined rotary tube (B), the combustion chamber (C) surrounding this and a burner (14) connected to it having an associated blower (94) and a hopper (61) provided upstream of the rotary tube (B). The delivery opening (12) of the rotary tube (B) is connected air-tightly via a seal (22) to a housing (42) having a rising pipe (50) and a descending pipe (44). <IMAGE></p> |
