US 12,465,923 B2
Method for starting a grinding tube
Adem Karadeniz, Erlangen (DE); Stefan Smits, Hemhofen (DE); and Kurt Tischler, Erlangen (DE)
Assigned to Innomotics GmbH, Nuremberg (DE)
Appl. No. 16/316,514
Filed by Innomotics GmbH, Nuremberg (DE)
PCT Filed May 23, 2017, PCT No. PCT/EP2017/062347
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2018/010880, PCT Pub. Date Jan. 18, 2018.
Claims priority of application No. 16179745 (EP), filed on Jul. 15, 2016.
Prior Publication US 2023/0182146 A1, Jun. 15, 2023
Int. Cl. B02C 25/00 (2006.01); B02C 17/00 (2006.01); B02C 17/18 (2006.01); B02C 17/24 (2006.01)
CPC B02C 25/00 (2013.01) [B02C 17/1805 (2013.01); B02C 17/24 (2013.01); B02C 17/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for starting a grinding tube from a standstill state of the grinding tube, said grinding tube including a drive apparatus, the method comprising:
rotating the grinding tube and, at a first angle of rotation, acquiring a first actual torque;
calculating, based on the acquired first actual torque, a target torque for a second, greater angle of rotation;
acquiring an effective second actual torque when the second angle of rotation is reached;
examining an extent by which the second actual torque deviates from the target torque and comparing the deviation to a predefined threshold range;
setting a charge release mode of the grinding tube when the second actual torque lies within the threshold range; and
operating the grinding tube in grinding mode when the second actual torque lies outside the threshold range.