| 摘要 |
1,009,627. Pneumatic conveyers. H. BRAUNANGOTT. Dec. 18, 1962 [Dec. 19, 1961], No. 47777/62. Heading B8A. In pneumatic conveyer apparatus having a pressure container 1, Fig. 2, for feeding pulverulent &c. material to a conveyer line 9, the container has a flexible lining 4 which is inflated by compressed air for loosening the material, the air escaping at the lower end of the lining to mix with the material falling into the conveyer line 9. The lining 4 is attached at its upper end to the container wall and compressed air is supplied as by an annular pipe 5 with radial branches 15. In one example (not shown) the lining 4 is not otherwise supported internally but in the example shown the lining 4 is rigidly held in recesses 14 of the container wall by tubular stays 10 attached to a tubular ring 11 at the top of the container and extending generally conically towards the outlet 9. The stays 10 have perforations 13 for the introduction of loosening air in a direction generally tangential to the internal conical surface the air being supplied to the ring 11 at inlet 12. Elastic sleeves 16 may be provided over the stays 10 and have resiliently openable perforations 17 aligned with the holes 13 to operate as check valves which prevent clogging due to back flow of material into the stays 10. |
