Freezing type drying machine for modified calcium-based jet desulfurization research and development

The utility model discloses a freeze dryer for modified calcium-based jet desulfurization research and development, which relates to the technical field of freeze dryers and comprises a freeze drying unit, the lower end of the freeze drying unit is connected with a plurality of stages of treatment boxes communicated with each other, a purification mechanism is mounted in the plurality of stages of treatment boxes, and a holding seat is mounted at the top end of the freeze drying unit. A containing cavity communicated with the freeze drying unit is formed in the upper end of the containing base, an outer threaded ring protruding upwards is arranged at the upper end of the containing cavity, a transparent cover is connected to the outer threaded ring in a threaded mode, a blowing mechanism is installed on the multi-stage treatment box, and a vibration buffering mechanism is connected to the lower end of the multi-stage treatment box. According to the freeze drying unit, particles and impurities in air are filte