Novel boiler front feeding device of straw biomass CFB boiler

The invention discloses a novel boiler front feeding device of a straw biomass CFB (circulating fluidized bed) boiler, which includes a boiler front feed bin assembly, a first-stage blending spiral assembly, a blanking pipe assembly, a second-stage feeding spiral assembly and a safety control assembly, wherein the boiler front feed bin assembly includes two feed bins; an infrared camera is mounted at the top end in each feed bin; explosion-proof relieve valves are installed at the middle parts of the two sides of each feed bin; a manhole door is arranged at the middle part on the outer side of each feed bin; and two activators are arranged at the lower part of each feed bin. The novel boiler front feeding device fully combining the structural characteristics of the screw feeder, adopts the brand-new model that the feeding process sectional functions are decomposed and the safety fire-prevention measures are reasonably linked, and can satisfy the high load of the boiler and has excellent use effect for all sor