Dispersing device and pulping machine

A dispersing device, comprising:

• a first shear device and at least two second shear devices,
• wherein one of the first shear device and the second shear device is a shear stator and another one of the first shear device and the second shear device is a shear rotor, and the first shear device is rotatable relative to the second shear device;
• wherein the first shear device comprises a shear inner ring, a shear outer ring and an annular isolation board;
• the shear inner ring is provided with a plurality of first radial through holes provided at intervals from each other;
• the shear outer ring is provided to surround outside the shear inner ring, and is provided coaxially with the shear inner ring and connected in linkage with each other;
• the shear outer ring is provided with a plurality of third radial through holes provided at intervals from each other;
• the annular isolation board is located between the shear inner ring and the shear outer ring, an inner side of the annular isolation board is connected with the shear inner ring, and an outer side of the annular isolation board is connected with the shear outer ring, so that both opposite ends of the annular isolation board form shear receiving grooves, respectively;
• and
• wherein the second shear device has a shear embedded ring, the shear embedded rings of each of the second shear devices are respectively embedded in one of the shear embedded rings, and the shear embedded ring is provided with a plurality of second radial through holes provided at intervals from each other.