Flocculation treatment method for waste liquid of gravure wiping plate of centrifuge

The invention provides a flocculating agent for treating waste liquid of a gravure wiping plate and an application method of the flocculating agent. By mainly utilizing a positive ion organic flocculating agent as a main additive and anhydrous calcium chloride as an auxiliary additive, the flocculating agent is added into the waste liquid of a gravure wiping plate at a specific condition for coagulation. The method can realize quick coagulation and sedimentation of components such as a surface active agent, mineral oil, fillers, a connecting material, dye, wax, a drying agent and the like in the waste liquid of a banknote printing gravure wiping plate, can increase the separation factors of the gravure waste liquid during treatment of the centrifuge, effectively reduces moisture content of a solid substance, increases the quality of the drained water, reduces the treatment volume of solid wastes and reduces the consumption of the flocculating agent, thereby fulfilling the aims of increasing the treatment effi