| 摘要 |
<p>1481352 Destructive distillation of tyres W SCHAFER 6 Feb 1975 [25 Feb 1974] 8490/74 Heading C5E Tyres are heated, with the substantial exelusion of oxygen, by indirect heat exchange with a hot gas which is led off after the heat exchange separately from the gaseous products formed by the decomposition of the tyres. Tyres 13 are charged through an oil bath 8 into a steel tube 1 and additives such as lime can be added through an air-lock 29. Hot gas from a burner 3 is passed through the annular space between the tube 1 and a heat insulating jacket 2 and leaves through a flue 4. Gaseous and other volatile products are removed through conduits 14 and 14a and passed to a condensation, rectification and distillation system 15, 16; residual solids are discharged at 19. Fig. 2 (not shown) illustrates an arrangement which can be used instead of the lower portion 21 of the apparatus shown in Fig. 1 and provides for an oxygen-containing gas being supplied to partially burn the carbon product and residual volatiles to produce heat, which heats the carbonisation-melting zone by radiation and conduction, and hot gas which indirectly heats the carbonization tube 1 and also provides for the introduction of steam or carbon dioxide to react with the hot carbon product.</p> |
