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US 6,324,490 B1Granted
Monitoring system and method for a fiber processing apparatus
AssigneeJ & L Fiber Services, Inc.
InventorsOla M. Johansson, Dennis L. Konkol
Life of this patent
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AssigneeJ & L Fiber Services, Inc.
InventorsOla M. Johansson, Dennis L. Konkol
Estimating the term…
A system, software program, and method for monitoring performance of a fiber processing apparatus that preferably is a disk refiner or a filter screen that analyzes operating data pertaining to the operation of the apparatus to determine when a plate of the apparatus should be replaced before plate wear undesirably affects performance. Operating data over time is analyzed to determine whether it exhibits a trend characteristic of plate wear and, if so, a plate change recommendation is generated. In a preferred method, regression or piecewise linearization is utilized to determine a slope of the data and the slope is compared to a threshold. If above, below, or outside a certain value or window of the threshold, the recommendation is generated. To avoid fluctuations in performance not due to plate wear from affecting the determination, operating data over several hours of apparatus operation is analyzed. When a plate of an apparatus is changed, an inventory of the plates is updated. If the inventory requires replenishing, plates are ordered over a telecommunications link, such as by e-mail or FTP connection, with a remote supplier computer or system. New replacement plates can be entered into the inventory from information downloaded from a portable input device, such as a bar code scanner or the like.
In a computer system which monitors operation of a disk refiner or a filter screen, a method of estimating about when a plate of the disk refiner or filter screen that processes a fibrous slurry should be replaced comprising the following steps performed by the computer system:
In a computer system which monitors operation of a disk refiner or a filter screen having a plurality of pairs of sensors that sense data pertaining to the operation of the disk refiner or a filter screen, a method of determining when a plate of the disk refiner or filter screen that processes a fibrous slurry should be replaced comprising the following steps performed by the computer system:
In a computer system which monitors operation of a disk refiner or a filter screen having a plurality of pairs of sensors that sense data pertaining to the operation of the disk refiner or a filter screen, a method of determining when a plate of the disk refiner or filter screen that processes a fibrous slurry should be replaced comprising the following steps performed by the computer system:
Dependencies are inferred from the claim text.