The application provides an automatic feeding
chemical looping combustion boiler, which comprises an
oxygen carrier bin, an air reaction furnace, a raw
coal bin and a fuel reaction furnace,
oxygen in the
oxygen carrier in the oxygen carrier bin is provided to the fuel reaction furnace after being oxidized by the air reaction furnace, and the raw
coal bin is used for providing fuel to the
combustion furnace; the oxygen carrier bin and the raw
coal bin are provided with inventory detection devices, the oxygen carrier bin and the raw coal bin are sequentially provided with a
rotary valve, a screw feeder, a pre-furnace hopper and a
rotary valve, and the pre-furnace hopper is provided with a pneumatic conveying device at an entrance and exit. According to the embodiment, the pneumatic conveying device is arranged, so that the pressure in the conveying pipeline is increased, and then the material can smoothly enter the fuel reaction furnace. Further, the
rotary valve and the screw feeder are arranged, so that the
air tightness in the material conveying process is improved, the pressure in the conveying pipeline is stable, and the gas blocking material condition is avoided.