Tail gas absorption process and device in melamine production process

The invention relates to the technical field of tail gas treatment, in particular to a tail gas absorption process and device in the melamine production process. The tail gas absorption process in themelamine production process comprises the following steps that tail gas in the melamine production process enters a water absorption tower after being boosted by a Roots blower, ammonia gas, urea andmelamine in the tail gas are absorbed by water, then the tail gas enters a cyclone separator to be separated,the separated tail gas enters a packing section of an acid absorption tower, ammonia gas in the tail gas is further absorbed by acid absorption liquid, then the tail gas enters a bubble cap section, acid mist is absorbed by desalted water, and finally the tail gas is separated by an efficient demister and is discharged after reaching the standard. According to the tail gas absorption process and device in the melamine production process, ammonia gas contained in tail gas is effectivelyabsorbed, the treated tail