Process for controlling the charging of a shaft furnace
US4714396A · kind A · utility
6Cited by
5References
7Claims
0Family size
Inventors
Key dates
| Filing date | May 12, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | May 12, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B1/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for controlling the charging of a shaft furnace of the type utilizing a distribution spout and one or more storage hoppers with each hopper being provided with a dosing device for regulating the flow of charging material from the hopper to the spout. The shaft furnace also includes a weighing system to determine the contents (weight) of the hopper and to adjust the position of the dosing device wherein the dosing valve is opened whenever the real flow Q.sub.r is below the reference flow Q.sub.c and is held in position when the real flow Q.sub.r is above the reference flow Q.sub.c.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.