Agitator ball mill

An agitator ball mill comprising:

• a horizontally arranged grinding vessel
• enclosing a cylindrical grinding chamber having a free radius R14, the grinding chamber being bounded by a grinding vessel wall and by a grinding chamber inner boundary,
• a grinding material feed leading into the grinding vessel at one end of the grinding vessel,
• a grinding material outlet leading out from the grinding vessel at the other end of the grinding vessel, and a separator for separating an amount of grinding material and a plurality of grinding bodies, the separator being arranged upstream of the grinding material outlet,
• an agitator arranged inside the cylindrical grinding chamber, the agitator comprising
• an agitating shaft having a central longitudinal axis and being rotatably drivable in a spinning direction,
• the agitator comprising agitating discs mounted to the agitating shaft and fixed against rotation relative thereto, the agitating discs being arranged at an axial distance from one another,
• the agitating discs have an outer edge, a thickness d, and
• a free radius R18 extending from the grinding chamber inner boundary to the outer edge of the agitating discs,
• wherein a gap is formed between the outer edge of the agitating discs and the grinding vessel wall, the gap having a radial width b,
• wherein a grinding cell is bounded by two of the agitating discs respectively, and
• wherein the agitating discs comprise a plurality of channels and entraining profiles formed in the agitating discs, for entraining the grinding bodies, each of the entraining profiles being formed by a trailing wall of a respective channel of the plurality of channels, with the trailing wall of the respective channel running parallel to the central longitudinal axis of the agitating shaft, and with the trailing wall of the respective channel being formed by a bent-off channel section being bent off relative to the central longitudinal axis of the agitating shaft in a direction counter to the spinning direction of the agitating shaft, wherein
• the respective channels comprise a straight inner channel section running radially relative to the central longitudinal axis of the agitating shaft and having a length f, wherein the respective channel further comprises an outer channel section comprising the bent off channel section,
• and wherein the outer channel section of the respective channel is radially closed to the outside by a peripheral portion of the agitating disc, the peripheral portion having a radial width e.