Boiler pulverized coal sample fineness on - line measuring device

The utility model relates to a boiler pulverized coal sample fineness on - line measuring device. The device includes: mechanical transmission unit is including lieing in the inside circulator of boiler pipeline for provide mechanical power is and transmit the mechanical power who provides, sampling unit is by the mechanical transmission unit drive, and along with the rotatory sampling probe of circulator on being located the circulator for draw boiler pulverized coal's sample, photoelectric conversion unit is connected with sampling unit for be voltage signal with the light signal conversion of the buggy sample that extracts, and data acquisition and processing unit, be connected with photoelectric conversion unit for carry out collection and processing to the voltage signal by photoelectric conversion unit changed, and calculate the grain fineness of the buggy sample that extracts. The utility model provides a boiler pulverized coal fineness on - line measuring device has simple structure, on line measureme