Raw material supply device, flash smelting furnace and nozzle member
US10845123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2003/169
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A raw material supply device that supplies a raw material into a flash smelting furnace and supplies first gas and second gas into the flash smelting furnace, includes: a first gas pathway that is provided in a lance and supplies the first gas into the flash smelting furnace; a raw material pathway that is provided out of the lance and supplies the raw material into the flash smelting furnace; a second gas pathway that is provided out of the raw material pathway and supplies the second gas into the flash smelting furnace; and a blade that is provided in the first gas pathway, has an inclined face with which the first gas is collided and revolves the first gas toward a lower side of the flash smelting furnace, the inclined face being inclined with respect to a flow direction of the first gas in the first gas pathway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.