The invention relates to a
waste gas treatment device for UV photocureable
coating equipment. The devicecomprises a fan, a
heat exchanger, a rotary separator, a cold water
tower and a gas-liquid mixing
tower, and further comprises a switching mechanism, a cooling mechanism and a heat dissipation mechanism; a water outlet of the heat dissipation mechanism is communicated with the cold water
tower, and a water inlet of the heat dissipation mechanism is communicated with the
heat exchanger and the rotary separator; the switching mechanism comprises a tee joint, a switching plate, a circulating mechanism, an output mechanism and a
temperature control precision meter; and an adjusting
assembly is further arranged at the air outlet of the fan and used for controlling the air outlet amount of the air outlet. The
waste gas treatment device solves the technical problems that when
waste gas in the
heat exchanger is condensed,
condensed water becomes hot after heat exchange with the waste gas, and if the
condensed water is not discharged in time, the heated waste water can cause the poor condensation effect in the heat exchanger; and that even if the
condensed water is discharged in time, the hot water directly enters the cold water tower, cold water in the cold water tower becomes hot, and
energy loss is serious.