The present invention discloses a water-
coal slurry feeding device for a multi-pass
circulating fluidized bed boiler, which relates to the technical field of boilers, including a
shotcrete box and a
slurry supply
pipe. A
discharge plate is arranged on the right side of the
slurry supply
pipe, a movable frame is arranged on the right side of the
discharge plate, a spray hole is opened at the right end of the
shotcrete box, and an adjustment component is arranged in the spray hole. The water-
coal slurry feeding device for a multi-pass
circulating fluidized bed boiler, through the powerful thrust generated by the rotation of the hydraulic blades, not only improves the output power of the spray hole, but also enables the sprayed water-
coal slurry to obtain a greater driving force, thereby significantly improving the work efficiency; through the movement of the third gear rod, the precise control of the
control rod and the adjustment plate, the operator can flexibly adjust the injection speed of the water-
coal slurry according to actual needs, and realizes the precise control of the injection process; the knocking action of the knocking rod can effectively prevent the water-
coal slurry particles from blocking the pipeline during the transportation process, thereby improving the stability and reliability of the entire
system.