Mixing reaction device for preparing polyamide 66 salt and reaction method thereof

The invention discloses a mixed reaction device for polyamide 66 salt preparation and a reaction method thereof, and relates to the technical field of polyamide 66 salt preparation, the mixed reaction device comprises a neutralization tank, a mounting hole is formed in the top of the neutralization tank, a multi-layer feeding assembly is arranged in the mounting hole, the multi-layer feeding assembly comprises a long feeding cylinder, the long feeding cylinder penetrates into the neutralization tank, and the long feeding cylinder is arranged in the neutralization tank. And the long feeding cylinder is fixedly connected to the interior of the mounting hole, guiding-out holes are formed in the outer side, located in the hollow tank, of the long feeding cylinder at equal intervals, and a guiding-out frame is fixedly connected to the interior of each guiding-out hole. The mixing reaction device for preparing polyamide 66 salt and the reaction method thereof have the advantages that after one reactant is guided in