Coke-oven gas synthesis ammonia conversion condensate treatment device and process thereof

The invention discloses a coke-oven gas synthesis ammonia conversion condensate treatment device and a process thereof, and belongs to the field of ammonia nitrogen-containing methanol wastewater treatment. Comprising an ammonia still connected with a reboiler, a tower top condenser with one end connected with the ammonia still, a reflux tank connected with the other end of the tower top condenser, a preheater arranged in front of the ammonia still and a methanol recovery tower connected with the reflux tank, a coke oven synthetic ammonia conversion condensate from a converter is preheated by a preheater and then is separated into ammonia and methanol gas by an ammonia still, the content of ammonia and methanol in a tower kettle residual liquid reaches the standard, and the ammonia and methanol can be directly used as circulating water supplement water after heat recovery; the methanol recovery tower is used for further separating tower top tail gas with relatively high methanol content from the ammonia still