GRINDING TACKING FOR DISK MILL Russian patent published in 2018 - IPC B02C7/12 D21D1/30 

FIELD: desintegrators and crushing devices.

SUBSTANCE: invention relates to a grinding head for a disc mill and can find application in the grinding of various fibrous materials. Grinding headset contains rotor and stator disks, the working surface of which is divided by intermediate grooves into sectors. Grooves are closed at the entrance to the grinding cavity and open at the outlet from it. Grooves are formed by the active side wall of the knife, opposite to it the passive side wall of the knife and the lower plane of the base. Interfaces of the base with the active wall are given the shape of concave fillets with a radius equal to 0.25 of the height of the knife, while the active side walls of the interlocking grooves, which are closed on the entrance side, are tilted with respect to the passive ones by an angle α, the value of which is 2ϕ<α<2.5ϕ, where ϕ – the angle of friction of the pulp mass on the knife surface.

EFFECT: grinding headset allows you to intensify the grinding process, improve the quality of grinding, as well as to reduce specific energy costs and increase productivity.

1 cl, 2 dwg