Amination reaction system for preparing heavy metal trapping agent

The utility model relates to the technical field of industrial wastewater treatment and recycling. The utility model relates to an amination reaction system, in particular to an amination reaction system for preparing heavy metal trapping agents. The annular box body sleeves the outer side part of the reaction kettle body; ventilation holes communicated with the annular inner cavity are densely distributed in the inner side portion of the annular box body, an air inlet communicated with the annular inner cavity is formed in the outer side portion of the annular box body, one end of the pipe body A is communicated with the air inlet, one end of the pipe body B is communicated with the hot air outlet, and the other end of the pipe body A is communicated with the other end of the pipe body Bthrough a pipe connector. The utility model has the advantages that: 1, the use mode is single, and different use modes can be selected according to the change of the use environment; 2, a user can conveniently select differe