Device for treating ammonia-bearing waste gas in vacuum pump

The invention relates to the technical field of combined-soda process and especially relates to a device for treating ammonia-bearing waste gas in vacuum pump. The device includes: a recovery column,a washing tower, a boiler, a waste gas filter device, a recovery treatment circulating pump, a vacuum pump, a washing circulating pump and a draught fan. The waste gas filter device is connected to the recovery column; the recovery column is connected with the recovery treatment circulating pump; the recovery column and the washing tower are respectively connected with the vacuum pump; the washingcirculating pump and the draught fan are respectively connected with the washing tower; the draught fan is connected to the boiler. The device effectively solves a problem that when the vacuum pump is evacuated and washed, the exhaust gas is high in ammonia content and cannot reach the discharge standard and causes environmental risk, thus avoiding influence on environment and improving environmental protection effect. Be