Slide-type extractor
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United States of America Patent
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Oct 30, 2018
Grant Date -
Jun 25, 2015
app pub date -
Jul 12, 2013
filing date -
Jul 17, 2012
priority date (Note) -
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Abstract
The invention relates to a device (30) for the extraction and the transfer of granular mineral materials at high temperature contained in a first enclosure including a fixed upper part (32) and a mobile lower part (34) delimiting a duct (36), the mobile lower part (34) being movable in a determined direction (50) between a advanced position and a retracted position, and vice versa, to allow the flow of the granular mineral materials in the duct (36). The device further includes means (78, 80) for moving and guiding the mobile part (34) relative to the fixed part (32). The fixed part (32) and the mobile part (34) each comprise a metal outer shell (38, 58), and an inner shell (40; 60) made by stacking at least a first coating (42; 62) of thermally insulating material mounted on the metal outer shell (38; 58), and a second coating (44; 64) of refractory material mounted on the first coating (42, 62).
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