Sealing valve arrangement for a shaft furnace charging installation
US11199359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Jan 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2003/105
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A sealing valve arrangement for a shaft furnace charging installation including a shutter that cooperates with a valve seat and a shutter-actuating device for moving the shutter between a closed position in sealing contact with the valve seat and an open position remote from the valve seat, where the shutter-actuating device includes a tilting shaft connected to the shutter, an electric motor with an output shaft connected to the tilting shaft, and a braking device associated with the electric motor, where the braking device is configured for, when engaged, preventing the output shaft of the electric motor from rotating, the shutter-actuating device further including a transmission means arranged between the output shaft of the electric motor and the tilting shaft, wherein the transmission means is configured for transmitting rotational movement of the output shaft of the electric motor to the tilting shaft, where the transmission means includes a backlash configured for having a predetermined amount of allowed rotation between the output shaft of the electric motor and the tilting shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.