2results about How to "Improve fluidization quality" patented technology

The invention relates to the technical field of fluidized beds, in particular to a fluidization coating device with pulse, stirring and double-particle triple synergy, which comprises a spray fluidized bed reactor, a fluidized bed reactor, a stirring device and a double-particle fluidized bed reactor, the gas distributor is positioned above the carrier gas inlet and is used for uniformly distributing carrier gas entering from the carrier gas inlet on the whole bed layer to form fluidized gas; the gas-liquid two-phase flow nozzle is connected with the gas supply unit and the coating liquid conveying tank and is used for atomizing the coating liquid into micron-sized small liquid drops and then spraying the micron-sized small liquid drops into the spray fluidized bed reactor; the mechanical shearing unit continuously generates local mechanical crushing on the aggregate; the pulse air inlet device is connected with the air supply unit and is used for applying periodic pulse airflow to the fluidized bed layer and breaking particle aggregation and channeling formed during initial fluidization; and the flow aiding particles and the fine powder particles to be coated jointly form a double-particle fluidization system. The problems of difficult fluidization starting, non-uniform fluidization and the like of ultrafine powder particles are solved through triple synergy of pulse, stirring and double particles.

The present application relates to the technical field of fluidized reaction, and discloses a fluidized bed reactor, application and a method for preparing trichlorosilane through cold hydrogenation reaction, wherein a first gas distributor is arranged in the reaction cavity of the fluidized bed reactor, a gas feeding section is formed between the first gas distributor and the bottom of the reaction cavity, an annular plate is arranged at the bottom of the reaction cavity and extends to the first gas distributor so as to separate the gas feeding section into a central chamber formed around the annular plate and an annular chamber located between the annular plate and the cavity wall of the reaction cavity, a second gas distributor is arranged in the central chamber, and a third gas distributor is arranged in the annular chamber. The present application has the advantages of improving the overall fluidization quality of the bed layer and the utilization rate of raw materials.