一、Introduction of characteristics of medium consistency refiner：

This mill is suitable for beating and defibering all kinds of pulp, such as straw pulp, poplar pulp, eucalyptus pulp, bamboo pulp and waste paper pulp。This kind of fiber has low strength and short fiber, which can avoid being cut off during beating, which is the advantage of selecting medium consistency beater to improve the beating degree of fiber。Broad-leaved wood pulp with short and hard fibers. Choosing medium consistency beating can avoid fiber cutting. Generally, the beating concentration is controlled between 6% and 10%. The fiber density of medium consistency refining is high. In the process of high thrust operation of two grinding discs, the beating and defibering process is the friction between fibers, so the branching rate of single fiber is high, so the beating degree  is improved；

Waste paper pulp contains a lot of ink and stickies. Using medium consistency beating can effectively disperse ink and stickies and improve the quality of pulp processing.。The results of medium consistency beating technology used by a large number of manufacturers show that the physical strength index of paper can be improved by 20-30%.

The energy consumption of beating is greatly reduced, and the beating section is a section with high energy consumption in the whole papermaking process, which generally accounts for 30-50% of the energy consumption per ton of paper. Because the beating concentration is increased, the productivity is also greatly improved and the energy consumption is reduced. The fiber quality is guaranteed.

二、Equipment model and parameter list：

三、Overall diagram of main engine and hydraulic station of medium consistency refiner：