| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejector device for carriage of a particulate fluid to crush and carry clinker type combustion ashes formed in a coal fired boiler etc., capable of carrying out a stable continuous operation for a long period by rapidly extending the longevity of a throat. SOLUTION: The ejector device for carriage of the particulate fluid constituted by fitting and fixing the abrasion resistant ceramics made venturi throat in a metallic casing is constituted of a throat inlet block, a throat part block and a throat outlet block by dividing the venturi throat into a plurality of the blocks in the axial direction, the throat outlet block is structured by further dividing it in the plurality of blocks in the axial direction, the throat inlet block and the throat outlet block are made of alumina ceramics, the throat part block is made of zirconia ceramics, and it is held by a holding member fixed on the metallic casing.
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