Three-phase fluidization equipment and method for producing ammonia from urea by virtue of catalytic hydrolysis

The invention discloses three-phase fluidization equipment and a method for producing ammonia from urea by virtue of catalytic hydrolysis, and belongs to the technical field of chemical material preparation. The equipment comprises a reactor body, a raw material storage tank, a raw material pump and a steam pipeline, wherein an air distribution plate, a coiled tube type heat exchanger, a sprayer and a demister are sequentially arranged in the reactor body from bottom to top. According to the equipment disclosed by the invention, the coiled tube type heat exchanger with fins, the demister with eccentric inner cylinders, and an arrangement structure that an air cap is arranged on the air distribution plate are adopted, and a technological method of combining solid particle catalysts, raw material spraying, direct steam heating and indirect steam heating is also adopted, so that the disturbance in a reactor can be effectively enhanced, the heat transfer and mass transfer abilities can be significantly enhanced, the advantages of high reaction speed and high raw material conversion rate can be achieved, and thus the energy consumption can be further reduced, and the utilization rate of the equipment can be improved.