The coal flow control for circulati on fluidized bed combustion boiler

摘要

The present invention relates to a coal amount control apparatus for a fluidized bed combustion boiler, and an object without using a radioactive isotope (γ-Ray Source) being used in the main fuel coal amount adjustment control circuit of a fluid bed boiler unit and I, solve the problem of incidental caused by the radioisotope (γ-Ray Source) using laws by a combination of instrumentation signals ever adjusted in accordance with the coal feed device for the steam (steam) change to the ever a stable operation to secure the boiler can be there is provided a circuit device.; The configuration of the present invention is scrap which can maintain a constant thickness of the coal to be introduced to the fluidized bed combustion boiler buffer (Scraper, 11), a coal transfer device (17) installed on the top side steam variation detector coal quantity (Steam, 12) receiving a signal to control the amount of coal by steam (steam) the amount of coal speed control unit 13 for controlling the motor 15, the speed of the current coal feed device according to the variation.