High-temperature heat carrier particle generating device

The invention relates to a high-temperature heat carrier particle generating device which comprises a furnace body, and a fluidized bed combustion furnace, a heat insulation necking flue gas mixer and a falling cloud bed particle preheater are sequentially arranged in the furnace body from bottom to top. The method has the advantages that coal is used as fuel to produce 800-950 DEG C high-temperature heat carrier particles, the production cost is low, natural gas is used as ignition fuel, an on-bed local ignition mode is adopted, the ignition cost is low, the operation temperature of the air distribution plate is low, and the service life is long. The maximum proportion of heat generated by fuel combustion is used for heating the heat carrier particles, and the energy utilization efficiency is high. High-concentration oxygen is used as a combustion improver, and the temperature of the fluidized bed does not exceed 950 DEG C, so that the generation of nitrogen oxides is reduced from the source; sulfur dioxide