Comprehensive utilization and treatment system for waste catalyst containing cobalt, nickel and molybdenum

The utility model provides a comprehensive utilization and treatment system for a waste catalyst containing cobalt, nickel and molybdenum. The comprehensive utilization and treatment system comprises a batching unit, a pyrogenic process treatment unit, a grinding unit, a water process leaching unit, an acid process leaching unit, a cobalt recovery unit, a nickel recovery unit and a sewage treatment unit which are connected in sequence, wherein the batching unit is used for mixing and batching the waste catalyst; the pyrogenic treatment unit is used for roasting the waste catalyst, the grinding unit is used for ball-milling and grinding the waste catalyst, and the water leaching unit is used for recovering water-soluble sodium molybdate; the acid leaching unit is used for leaching nickel and cobalt; the cobalt recovery unit is used for recovering cobalt sulfate; the nickel recovery unit is used for recovering nickel sulfate; the sewage treatment unit is used for treating sewage generated by the nickel recovery