A method of operating a fluid bed combustor
A method is described of operating a fluid bed combustor comprising the steps of: a. vertically staggering a plurality of fluid beds on opposite sides of a divide wall, each fluid bed comprising a combustion bed from which flue gases emerge and a freeboard space immediately above each combustion bed for the passage of the flue gases thereinto; b. transferring the flue gases through openings in the divide wall from one freeboard space directly into an adjacent and more elevated freeboard space; c. accumulating and mixing in each freeboard space the flue gases emitted from each upstream combustion bed, the upstream flue gases passing around and over the top of each downstream combustion bed; d. altering the direction of flue gas exiting a freeboard space with respect to its direction entering the same freeboard space by approximately 180/sup 0/; e. whereby the accumulating and mixing of the flue gases as they pass through the combustor provide a generally uniform temperature throughout the freeboard spaces.
- Assignee:
- Babcock and Wilcox Co., New Orleans, LA
- Patent Number(s):
- US 4828482
- OSTI ID:
- 5832561
- Resource Relation:
- Patent File Date: Filed date 28 Jan 1987
- Country of Publication:
- United States
- Language:
- English
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