Siemens Aktiengesellschaft

Innomotics Gmbh

Kurt Tischler

Norbert Becker

Axel Möhle

Horst Kümmlee

Stefan Smits

Ulrich Hartmann

Christian Schiller

Peter Petereit

Michael Riebensahm

Dan Niculae Fodor

Hans-Ulrich Löffler

Horst Kuemmlee

Axel Moehle

Andreas Procksch

Marian Rakowicz

Julio Cortés

Otto Schäfer

Adem Karadeniz

Horst Kummlee

Axel Mohle

Hans-Ulrich Loeffler

A method for starting a grinding tube with an assigned drive device, wherein during the operation of the grinding tube a grinding mode and a charge release mode can be set such that a particularly reliable monitoring of the state of charge located in the grinding tube is ensured, where the grinding tube is rotated and, at a first rotational angle, a first actual torque is detected, a setpoint torque is calculated for a second, relatively large rotational angle based on the first actual torque, an actually occurring, second actual torque is detected when the second rotational angle is reached, an investigation is performed to determine the difference of the second actual torque from the setpoint torque, and the charge release mode of the grinding tube is set when the second actual torque is within the threshold range, otherwise the grinding tube is operated in the grinding mode.

Method for starting a grinding tube

In a method for detaching a frozen charge from an inner wall of a grinding tube of a tube mill, a motor of a drive system is operated in a first mode to rotate the grinding tube for grinding. In a second mode, the motor of the drive system is operated to remove the frozen charge from the inner wall of the grinding tube such that operation of the motor to effect a rotational movement of the grinding tube is repeatedly disturbed by a disturbance signal to cause a repeated disturbance within a variable time interval, with the time interval of the repeated disturbance being shortened.

Method and device for detaching an adhering charge from the inner side of a grinding pipe of a tube mill

A method for producing an annular active part of an electric machine, where the active part has ring segment-shaped sections with grooves for receiving electric conductors, an electric machine with the ring segment-shaped section, a mill with the electric machine, and a service method for such an electric machine or such a mill, and where the goal is to assembly the electric machine inexpensively.

Composite electric machine

A system for transporting an ore pulp (S) in a line system () located along a gradient, wherein the ore pulp (S) flows in the line system by the effect of gravity, has at least one generator station () located in the line system (), the station comprising a flow machine () driven by the ore pulp (S) and a generator () coupled to the flow machine () for producing electrical energy as components of the transport system.

System for the transport of an ore pulp in a line system located along a gradient, and components of such a system

The method is used to determine the filling level of a loaded mill container (). The container () has a drive torque (M) applied to it by means of a drive (), and causes it to rotate. The drive torque (M) on the drive () is set by means of a predeterminable drive test sequence. A time/rotation speed profile of a rotation speed of the container () which results from the drive test sequence is recorded, and is analyzed. The filling level is determined on the basis of the results of the analysis. The method produces up to date, accurate information, determined during the milling operation, about the filling level of the container ().

Method for determining a refuse filling level

In a method for detaching a charge () which is stuck to the inner wall of a grinding pipe (), the grinding pipe () is rotated in a targeted manner such that the charge () that is stuck is removed from the inner wall of the grinding pipe () as a result of multiple modification of the rotational speed of the grinding pipe () and, optionally, as a result of abrupt braking of the grinding pipe (). Generally speaking, the material-dependent maximum angle of rotation F of the grinding pipe is not exceeded in order to avoid the charge that is stuck from falling in an uncontrolled manner. The invention supercedes labor-intensive and protracted methods for detaching such charges () since the tasks can be carried out by the same motor of the drive device () which is used to drive the grinding pipe () during the grinding process.

Method and devices for detaching a charge stuck to the inner wall of a grinding pipe

Method, control device and drive device for detaching a charge stuck to the inner wall of a grinding pipe

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Erlangen, Germany

Kurt Tischler