B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/105
B02C 4/12 (2006.01) B02C 15/00 (2006.01)
Patent
CA 1311232
PULVERIZER HAVING ROTATABLE GRINDING TABLE WITH REPLACEABLE AIR PORT SEGMENTS ABSTRACT OF DISCLOSURE A pulverizer for particulate material such as coal includes a housing having a centrally located feed chute, and encloses a rotary grinding table having an air port unit formed as multiple segments removably attached to the rotary table outer periphery and containing air flow passageways. Located adjacent the air port unit is an outer segmented ring attached rigidly to the pulverizer housing, with a radial gap being provided between the outer ring and the air port unit ring segments. The outer ring segments include upper wear plugs removably attached onto the outer ring lower segments. Whenever the upper parts of the air port unit segments become worn excessively due to erosion, or there is a need to change air flow require- ments of the pulverizer, the rotatable air port segmented ring upper parts only are conveniently replaced along with the upper wear segments of the adjacent outer stationary ring.
613409
Cummins Ralph L.
Novotny Randall J.
Finlayson & Singlehurst
Foster Wheeler Energy Corporation
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