Recycled concrete aggregate preparation device and preparation method

The invention relates to the technical field of concrete raw material processing, in particular to a recycled concrete aggregate preparation device and method.The recycled concrete aggregate preparation device comprises a prefabricated box, a crushing box and a connecting channel, the crushing box is connected with the prefabricated box through the connecting channel, a crushing assembly is arranged in the crushing box, and a pressing plate and a baffle are arranged in the prefabricated box; the pressing plate is movably arranged on one side in the prefabricating box, a plurality of pressing cones are welded to one side of the pressing plate at equal intervals, the baffle is rotationally arranged on the other side in the prefabricating box, a hydraulic rod is fixed to the outer wall of one side of the prefabricating box, the output end of the hydraulic rod penetrates through the inner wall of one side of the prefabricating box to be fixed to one side of the pressing plate, and clamping assemblies are arranged