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    • 44. 发明专利
    • SEALING STRUCTURE FOR STOKER DRIVING UNIT
    • JPH07208725A
    • 1995-08-11
    • JP228994
    • 1994-01-14
    • KUBOTA KK
    • UEDA KUNIHIRO
    • F23H7/08F23H17/00
    • PURPOSE:To prevent the leakage of air and dust in a chute to the outside of a device through a seal pipe by a method wherein a slit hole on a fixed seal plate is blockaded by a movable seal plate while sliding. CONSTITUTION:A seal pipe 21 is pinched between fixed seal plates 22a, 23a and is advanced and retreated together with a link plate on a rail guided by a center adjusting device 36. In this case, seal plate means 22, 23 at both ends of the seal pipe 21 permit the swinging of a link plate 5c along the slit holes 22c, 23c of the fixed seal plates 22a, 23a while the opening parts of the slit holes 22c, 23c, which are changed in accordance with the swinging of the link plate 5c, are blockaded by movable seal plates 22b, 23b, which are provided on the link plate 5c, while sliding on the fixed seal plates 22a, 23a. According to this method, the leakage of air and dust in the chute to the outside of the device through the seal pipe 21 can be prevented.