The invention provides a waste paint liquid regeneration treatment process. The waste paint liquid regeneration treatment process comprises the following steps that S1, waste paint liquid is conveyed to a
settling tank through a pump, after standing in the
settling tank, the waste paint liquid forms supernate and an
impurity layer, the
impurity layer is discharged through a lower discharging opening, and the supernate is conveyed to an
evaporation recovery unit through the pump; s2, pumping the waste paint liquid from the
settling tank to an
evaporation kettle, opening a steam pipeline to heat the
evaporation kettle, and setting proper
evaporation temperature and evaporation duration; according to the waste paint liquid regeneration treatment process provided by the invention, the temperature of the evaporation kettle is accurately regulated and controlled by the steam pipeline
proportioning valve, different working condition requirements are met in cooperation with flexibly-adjusted evaporation parameters, the process supports diversified adjustment such as
feeding mode replacement, setting of the settling tank as required and negative pressure evaporation, the adaptability is high, and the cost is low. The process is excellent in waste paint liquid treatment capacity, no useless waste is discharged in the whole process, the waste paint liquid recycling rate is greatly increased, and economic and environment-friendly values are both achieved.