| 摘要 |
PROBLEM TO BE SOLVED: To enhance the sealing performance and to decrease the gas concn. in a seal structure of the ceramic filter of a dust collector applied to a coal- gasified combined power generating system by preventing the gas from being leaked from the joint between a ceramic tube and a weight sleeve. SOLUTION: A weight sleeve 3 is placed on the upper end of a ceramic tube 1 through a gravity seal 2 and surrounded by a main body 4, and a sealing part 5, a cylindrical ring 13 and an upper cylindrical member 15 are integrally connected by bolts and nuts 16 within the main body 4 through the respective flange faces. A sealing member 6 is inserted between the outer periphery of the tip of the weight sleeve 3 and the inner periphery of the sealing part 5 and made slidable through the sealing member 6 when a thermal elongation difference is produced between the weight sleeve 3 and its outer structure. A mount surface 3a is formed on the weight sleeve 3, and an elastically energized coil spring 20 is inserted between the slope 3a and the flange face 5a of the sealing part 5 to press the weight sleeve 3 and the lower gravity sleeve, and the gas is never leaked from the abutment part.
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