High concentration of hydraulic pulper deinking pulp is one of the devices indispensable, in addition to its role in crushing the paper pulp, there are so intense pulp fibers produced in the rotor friction, making by the action of chemicals of printing ink off from the fiber surface down, so as to achieve the purpose of recycling pulp. The rotor is long helical blade rotor, with powerful shredding action, working concentration of 15% -18%, can produce a strong top-down along the tank slurry flow and slurry flow rotation during operation. Pulp quality, evenness. This machine has a novel design, reasonable, high shredding concentration, energy, etc., is an excellent shredding equipment.