Energy-saving waste paper multi-stage repulping device for waste paper pulping and repulping process of energy-saving waste paper multi-stage repulping device

The invention relates to the technical field of waste paper pulping production, and discloses an energy-saving waste paper multi-stage disintegrating device for waste paper pulping, the energy-saving waste paper multi-stage disintegrating device for waste paper pulping comprises a disintegrating tank and a filtering tank, the disintegrating tank is provided with a driving motor, the output end of the driving motor is provided with a driving shaft, and the driving shaft is connected with the filtering tank. A penetrating hole is formed in the top of the crushing tank, the driving shaft penetrates through the penetrating hole, a plurality of fixing blocks are fixedly installed on the driving shaft, a plurality of first crushing cutters are installed on the circumferential side walls of the fixing blocks, and the crushing cutters are arranged on the driving shaft by means of the hierarchical gradient formed by the fixing blocks on the driving shaft. The multiple first disintegrating cutters can conduct synchrono