Residual ammonia water distillation debenzolization device and use method thereof

The invention provides a residual ammonia water distillation debenzolization device and a using method thereof, and belongs to the technical field of residual ammonia water distillation.The residual ammonia water distillation debenzolization device comprises a residual ammonia water tank, the right side of the residual ammonia water tank communicates with a residual ammonia water pump and an oil-rich pump, and a ceramic filter is arranged on the residual ammonia water pump through a communicating pipe; the right side of the ceramic filter is communicated with a feeding preheater, an ammonia still is communicated with the upper part of the feeding preheater, the right side of the feeding preheater is communicated with a wastewater cooler, a dephlegmator is arranged above the ammonia still, the top of the dephlegmator is communicated with a condensation cooler, and the top of the dephlegmator is communicated with the wastewater cooler. And the right side of the dephlegmator is communicated with a lean and rich