METHOD FOR DETERMINATION OF ELEVATION ANGLE AND METHOD OF GRINDING MILL POSITIONING

FIELD: methods of control and regulation of crushing and grinding machines and plants operation.SUBSTANCE: method of determining current angle of loading lift inside housing of grinding mill, which is rotated by means of drive mechanism, consists in the fact that mill housing is rotated, determining control angle of lifting of loading and corresponding control driving torque of drive mechanism at control moment of time, calculating the filling factor for the control time moment based on said load lifting control angle and said control driving torque of the drive mechanism, determining the current driving torque of the drive mechanism and calculating said current load lifting angle based on said current driving torque of the drive mechanism and said filling ratio. Method of grinding mill housing positioning with specified angle of rotation consists in turning mill housing to turning angle, corresponding load lifting angle is calculated for moment of time, when mill housing reaches specified turning angle, at that, said method is used to determine current angle of loading lift inside mill of grinding mill. Then mill housing is rotated to define load lifting angle and corresponding control driving torque of drive mechanism at control moment of time, as long as said angle of minus corresponding to the angle of lift of the load does not become equal to the predetermined angle of rotation. After that driving torque is set to zero. Additionally, when implementing the mill housing positioning method, the body is turned back by means of the drive mechanism by the specified value of the load lifting angle after the specified turning angle.EFFECT: method for determination of current angle of loading lift and method of mill housing positioning provide higher quality of grinding.11 cl, 10 dwg Группа изобретений относится к способам контроля и регулирования работы дробящих и измельчающих машин и установок. Способ определения текущего угла подъема загрузки внутри корпуса мельницы измельчения, вращающегося с помощью приводного механизма, заключается в том, что вращают корпус мельницы, определяют контрольный угол подъема загрузки и соответствующий контрольный движущий момент приводного механизма в контрольный момент времени, рассчитывают коэффициент заполнения для контрольного момента времени на основании указанного контрольного угла подъема загрузки и указанного контрольного движущего момента приводного механизма, определяют текущий движущий момент приводного механизма и