The Babcock & Wilcox Company

Paul S Knoebel

David J Walker

Roger A Detzel

Jerald Meeker Wennerstrom

Detzel Roger A

An apparatus for vertically supporting an internal conduit subject to temperature fluctuations comprising a conduit with shear lugs secured around its perimeter. These shear lugs rest upon a spool member surrounding the conduit that is configured to permit the thermal expansion/contraction of the supported conduit as needed. This spool member is, in turn, supported by an outer casing in a manner permitting the spool member to move or rotate independent of the casing. In this fashion, no rigid connector couples the internal conduit to the outer casing, instead a spool member provides the necessary support while being fully movable with respect to both the internal conduit and the outer casing.

Means for vertically supporting a segmented high-temperature internal

This invention pertains to a segmented insert installed within the horizontal conduit of a non-mechanical means (such as an L-valve) for controlling the external flow of particulate material recycled to a fluidized bed combustor. The segmented insert is insulated to protect the horizontal conduit and the individual segments are joined together by a combination of a collar and hinge means. This method of coupling retains the co-axial alignment of the individual segments for leak-free operations while also enabling them to move or pivot independent of each other while still being connected together. Such independent movement is necessary for stress release purposes during high temperature operation.

Transport conduit for hot particulate material

An underfeed fuel feeder for introducing granular material into a fluidized bed. One embodiment introduces material into the bed through a perforated cavity-shaped feed nozzle disposed beneath an air distribution plate. A second embodiment introduces material through a T-shaped nozzle disposed above the plate. A housing protects the nozzle. A third embodiment depicts the nozzle-housing combination in a fluidized bed boiler employing water cooled floors.

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Clinton, OH, United States of America

Paul S Knoebel