Waste liquid recovery device of urea hydrolysis reactor

The utility model relates to the technical field of chemical material preparation, in particular to a waste liquid recovery device of a urea hydrolysis reactor, which comprises a waste liquid recoverybox, one end of the waste liquid blow-off pipeline is suitable for being communicated with the hydrolyzer waste liquid blow-off opening, and the other end of the waste liquid blow-off pipeline is arranged in the waste liquid recycling box; one end of the filtering pipeline is arranged in the waste liquid recycling box, the other end of the filtering pipeline is suitable for being communicated with a urea solution inlet of the hydrolyzer, and a first automatic valve, a Y-shaped filter, a blue filter, a high-pressure pump, a pressure gauge and a check valve are sequentially arranged on the filtering pipeline; one end of the desalted water pipeline is arranged in the waste liquid recycling box, the other end of the desalted water pipeline is suitable for being connected with the desalted water connector, a first des