Technique and apparatus for solids circulation control in the solids circulating boiler

摘要: A method and apparatus for controlling steam production by the flow rate of particulate solids from a fluidized bed combustion chamber through vertical heat exchanger. The pressure drop across section exchanger is monitored compared with set point drop. When being falls below drop, signal provided to feed control means which then allows more be circulated receives solids. additional amount fed are recirculated along previous into chamber. Because cooled in temperature drops. sensor when drops, fuel provides provide make up cooling