Method for operating a beater wheel mill and controller for controlling a beater wheel mill
View Patent ↗The invention relates to a method, which can be used to detect the wear of prebeater heads of a prebeater ( 1 ) of a beater wheel mill in a simple manner.
1. A method for operation of a motor-driven prebeater of a beater mill, with a prebeater having at least one rotor with a plurality of prebeater heads, comprising:
recording the power consumption of a drive for the prebeater; and
determining the wear on the prebeater heads as a function of the power consumption of the drive.
2. The method according to claim 1 , further comprising:
forming a sliding time mean value (I M ) of the power consumption;
comparing the sliding time mean value (I M ) of the power consumption with a first threshold value (I warn ); and
emitting a first warning message when the sliding time mean value (I M ) of the power consumption undershoots the first threshold value (I warn ).
3. The method according to claim 2 , further comprising:
comparing the sliding time mean value (I M ) of the power consumption with a second threshold value (I max.wear ); and
emitting a second warning message when the sliding time mean value (I M ) of the power consumption undershoots the second threshold value (I max.wear ).
4. The method according to claim 3 , further comprising:
comparing the sliding time mean value (I M ) of the power consumption with a third threshold value (I switch-off ); and
switching off the prebeater automatically when the sliding time mean value (I M ) of the power consumption undershoots the third threshold value (I switch-off ).
5. The method according to claim 1 , wherein the drive is an electrical drive with an electric motor.
6. The method according to claim 5 , wherein the power consumption of the electrical drive is recorded by a current measurement.
7. The method according to claim 2 , wherein the power consumption of the drive within a time interval from one to 24 operating hours, from one to eight operating hours, is used to determine the sliding time mean value (I M ).
8. The method according to one claim 2 , wherein the power consumption of the electrical drive in the recent past is used to determine the sliding time mean value (I M ).
9. The method of claim 1 , wherein the step of determining the wear comprises the step of:
employing a computer program configured to determine the wear on the prebeater heads as a function of the power consumption of the drive.
10. The method of claim 1 , wherein the step of determining the wear comprises the step of:
employing one of an open-loop or closed-loop control device for the prebeater, configured to determining the wear on the prebeater heads as a function of the power consumption of the drive.