Lamp holder crystal removal system in hydrochloric acid furnace HCL synthesis

The utility model discloses a lamp cap crystallization removal system in hydrochloric acid furnace HCL synthesis, which belongs to the technical field of chemical production equipment and comprises a hydrochloric acid furnace body, a chlorine input pipeline and a hydrogen input pipeline, the chlorine input pipeline and the hydrogen input pipeline are communicated with the hydrochloric acid furnace body, and an external chlorine source and a hydrogen source are respectively led into the hydrochloric acid furnace body through the chlorine input pipeline and the hydrogen input pipeline. A first-stage falling film absorber, a second-stage falling film absorber and a third-stage falling film absorber are sequentially output and communicated on the hydrochloric acid furnace body stage by stage, a finished product acid tank is output and communicated on the first-stage falling film absorber, a pure water tank is input and communicated on the hydrogen input pipeline through a pure water input pipeline, and a water de