发明名称 |
PAPER STOCK SHEAR AND FORMATION CONTROL |
摘要 |
The system controls formation of wet stock (55) comprising fibers on a moving water permeable wire (13) of a de-watering machine that has a refiner (135) that is subject to a variable load and a headbox (10) having at least one slice (50), wherein each slice (50) has an aperture through which wet stock (55) is discharged at a stock jet speed onto the wire (13) that is moving at a wire (13) speed. A sheet of wet stock (55) moving a speed develops on the wire (13). The system includes: a) at least two water weight sensors (42A-42E) that are positioned adjacent to the wire wherein the at least two sensors (42A-42E) are positioned at different locations in the direction of movement of the wire (13) and upstream from a dry line (43) which develops during operation of the machine and the sensors (42A-42E) generate signals indicative of a water weight profile made up of a multiplicity of water weight measurements; and b) adjustability of at least one of the stock jet speed, sheet speed, wire speed, or refiner load to cause the water weight profile to match a preselected or optimal water weight profile.
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申请公布号 |
WO9964963(A1) |
申请公布日期 |
1999.12.16 |
申请号 |
WO1999US12729 |
申请日期 |
1999.06.07 |
申请人 |
HONEYWELL-MEASUREX CORPORATION |
发明人 |
HAGART-ALEXANDER, CLAUD;HU, HUNG-TZAW;WATSON, JOHN, DAVID;PRESTON, JOHN, G. |
分类号 |
D21F1/02;D21F7/02;D21G9/00;(IPC1-7):G06F17/00;G06F19/00;G06G7/66 |
主分类号 |
D21F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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