Coal additive feed arrangement and coal fired boiler system

The utility model provides a coal additive feed arrangement and coal fired boiler system, the device is including the storage silo that is used for saving the coal additive, still including the sprayer that measures conveyor with be used for fluidization coal additive, measurement conveyor links to each other with the entry of the export of storage silo and sprayer respectively, can detect from the weight of the coal additive of storage silo output and to sprayer transport coal additive to and, the coal additive was carried in volume from the weight control that can be based on the coal additive that detects to the sprayer. The utility model discloses utilize the coal additive ration of measurement conveyor in with the storage silo to carry to the sprayer in to utilize the sprayer with mealy coal additive fluidization, make the efficiency of coal additive can full play, thereby improve the utilization ratio and the combustion efficiency of accurate eastern coal, make the coal additive can follow tuber pipe line and/or overgrate air pipeline and carry to the furnace of boiler in, guarantee that the coal additive can effectively add.