| 摘要 |
PROBLEM TO BE SOLVED: To provide a cyclone ash conveying screw feeder capable of nearly perfectly preventing the leakage of ashes of high temperature and high pressure supplied from a cyclone. SOLUTION: The cyclone ash conveying screw feeder comprises a housing 2, a shaft 3, bearing portions 4, 5, and a driving motor 6. The housing 2 is a pipe element having an ash supplying port 23 and an ash discharging port 24. The shaft 3 has a blade 30, and is a shaft element capable of rotating the driving motor 6. The bearing portion 4 close to the ash supplying port 23 has a casing 41 and a gland packing flange 46. A gland packing 45 is stored in a space portion 40 defined by the casing 41 and an end portion 31, and the gland packing flange 46 is pressed in. On the flange 46, a ring-shaped groove 47 is carved. An O-ring 48 having high thermal resistance and high pressure resistance is fitted in the groove 47, and press-contacted on the end portion 31 of the shaft 3. Preferably, lubricating oil such as grease is filled in the groove 47. COPYRIGHT: (C)2009,JPO&INPIT
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