| 摘要 |
946,269. Rotary furnaces. GENERAL AMERICAN TRANSPORTATION CORPORATION. July 25, 1962 [Nov. 6, 1961], No. 28558/62. Heading F4B. [Also in Division F2] In a rotary processing drum of the type disclosed in Specification 864,242, a tendency for the inlet end to wobble is alleviated by a bearing structure 130 allowing relative movement between the fixed charging sleeve 60 and the rotating end wall 20, a sealing structure 160 being provided around a hardened wear sleeve 60a secured to said sleeve 60. The bearing structure 130 incorporates supports 132 and 131 for ball races respectively secured to the sleeve 60 and, by means of arms 125, to a plate 120 initially adjustably attached to the end plate 20. Initially the plate 120 is held by bolts 121 engaging said end plate 20. Its radial position is then adjusted by screws 122 in brackets 123 at the end of the drum 11, bolts 121 are removed, plates 20 and 120 are welded together, and bolts 121 are replaced and plugged at 124. The bearing structure is completed by inner races 142 and 145, and by outer races 141 and 144 respectively engaging rotatable elements 143 and 146. The sealing structure 160 comprises packing rings 167 disposed inside a sleeve 166 and compressed by an annular L-shaped follower 168 adjusted by nuts 172 engaging studs 169 screwed into lugs 170 attached to said sleeve 166. A flexible gasket 161 is clamped over the end of the sleeve 60. Treatment atmosphere gases such as air or CO 2 may be passed through the drum in an opposite direction to the charge, Fig. 1 (not shown).
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