| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to prolong a maintenance interval by longitudinally arranging a flow passage pipe for passing a dry distillation gas into a refrigerant flow passage and providing an oil recovering apparatus for extracting the condensed and separated oil from this flow passage pipe with a cleaning mechanism for passing cleaning oil along the inside wall from the top end of the flow passage pipe. SOLUTION: Refuse treatment equipment consists of a rotary kiln 1a forming a dry distillation residue 2 and the dry distillation gas G, a pulverizing device 4, a classifying device 5, a surface melting furnace 3, a high temp. combustion device 6, etc. The oil recovering apparatus S is disposed on a dry distillation route extending from the rotary kiln 1a. The oil T in the dry distillation gas G formed in the rotary kiln 1a is condensed and separated in this route and this oil T is supplied to the surface melting furnace 3. Such oil recovering apparatus S is provided with the cleaning mechanism for passing the cleaning oil Tc from the top end of the flow passage pipe 8 along the inside wall of the flow passage pipe 8. The oil T condensed and separated from the dry distillation gas G is used as the cleaning oil Tc.</p> |
