Device for continuously producing ammonium sulfate and calcium carbonate by using carbon dioxide mineralized gypsum

The invention discloses a device for continuously producing ammonium sulfate and calcium carbonate by using carbon dioxide mineralized gypsum, which comprises a spray tower reaction device and a multi-stage kettle type reaction device, the spray tower reaction device sequentially comprises a reaction tank, a first absorption area, a second absorption area and a third absorption area from bottom to top, the upper part of the first absorption area is provided with an ammonia water spraying layer, the lower part of the first absorption area is provided with a flue gas inlet positioned above the reaction tank, the upper part of the second absorption area is provided with a circulating spraying layer, the circulating spraying layer extracts liquid from the reaction tank through a circulating pipeline and a circulating pump for spraying, the upper part of the third absorption area is provided with a gypsum spraying layer, and the gypsum spraying layer is provided with a gypsum spraying layer. The spray tower reacti