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Title: Rivesville multicell fluidized bed boiler

One objective of the experimental MFB at Rivesville, WV, was the evaluation of alternate feed systems for injecting coal and limestone into a fluidized bed. A continuous, uniform feed flow to the fluid bed is essential in order to maintain stable operations. The feed system originally installed on the MFB was a gravity feed system with an air assist to help overcome the back pressure created by the fluid bed. The system contained belt, vibrating, and rotary feeders which have been proven adequate in other material handling applications. This system, while usable, had several operational and feeding problems during the MFB testing. A major portion of these problems occurred because the coal and limestone feed control points - a belt feeder and rotary feeder, respectively - were pressurized in the air assist system. These control points were not designed for pressurized service. An alternate feed system which could accept feed from the two control points, split the feed into six equal parts and eliminate the problems of the pressurized system was sought. An alternate feed system designed and built by the Fuller Company was installed and tested at the Rivesville facility. Fuller feed systems were installed on the north andmore » south side of C cell at the Rivesville facility. The systems were designed to handle 10,000 lb/hr of coal and limestone apiece. The systems were installed in late 1979 and evaluated from December 1979 to December 1980. During this time period, nearly 1000 h of operating time was accumulated on each system.« less
Publication Date:
OSTI Identifier:
6426333
Report Number(s):
DOE/MC/16230-156
DOE Contract Number:
AC21-81MC16230
Resource Type:
Technical Report
Research Org:
Pope, Evans and Robbins, Inc., New York (USA)
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; FLUIDIZED-BED COMBUSTORS; FUEL FEEDING SYSTEMS; FOSSIL-FUEL POWER PLANTS; DESIGN; PERFORMANCE; AIR POLLUTION CONTROL; COAL; LIMESTONE; MATERIALS HANDLING; MATERIALS HANDLING EQUIPMENT; PERFORMANCE TESTING; CARBONACEOUS MATERIALS; CARBONATE ROCKS; COMBUSTORS; CONTROL; ENERGY SOURCES; EQUIPMENT; FOSSIL FUELS; FUEL SYSTEMS; FUELS; MATERIALS; POLLUTION CONTROL; POWER PLANTS; ROCKS; SEDIMENTARY ROCKS; TESTING; THERMAL POWER PLANTS 200104* -- Fossil-Fueled Power Plants-- Components; 014000 -- Coal, Lignite, & Peat-- Combustion; 200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions