Adjusting a high pressure feeder based on fluid leakage
US12344994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jan 25, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C7/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that adjust a high-pressure feeder of a feed system used in pulp production based on the fluid leakage through a low-pressure outlet of a high-pressure feeder. Methods can include obtaining multiple flow values, including (1) a make-up liquor flow value, (2) a black liquor flow value, (3) a white liquor flow value, (4) a chip chute circulation flow value, and (5) a high pressure feeder purge flow value. Methods can include determining a chip flow value specifying a flow of chips provided to the high-pressure feeder. Based on the flow values, methods can determine a fluid leakage value specifying an amount of fluid leakage through a gap between a pocket rotor and the housing of the high pressure feeder. Methods can adjust an annular gap based on the fluid leakage value satisfies a threshold leakage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.