Epoxy chloropropane production process and device thereof

The invention relates to the technical field of epoxy chloropropane production, and particularly discloses an epoxy chloropropane production process which comprises the following steps: step 1, calcium carbide slag preparation; step 2, chloropropene preparation; and step 3, epoxy chloropropane preparation. According to the epoxy chloropropane production process, lime waste residues discharged by a calcium carbide method PVC device are recycled and used as raw materials for cyclization reaction, and the waste residues are comprehensively utilized; mirabilite generated in caustic soda brine refining process is adopted to remove calcium chloride in the cyclization wastewater, organic matters in the cyclization wastewater are removed by using activated sludge and a deep oxidation method, and the cyclization wastewater is recycled as salt dissolving make-up water, so that the purposes of resource conservation, environmental friendliness, comprehensive utilization of wastes, no pollutant discharge, energy conservat