Patent · US Expired

Apparatus for producing foamed blast furnace slag

US4978107A · kind A · utility

1Cited by
2References
6Claims
0Family size

Assignees

Inventors

Key dates

Filing dateOct 17, 1989
Grant dateDec 18, 1990
Priority date
Expiry dateOct 17, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC21B2400/06
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

To permit a continuous production of foamed blast furnace slag, a revolving conveyor is provided, which is continuously supplied with a stream of slag from a slag feeder in a trough which comprises a bottom and side walls rising from the bottom. Adjacent to the slag feeder, stationary tubular lances extend in said trough closely above the bottom in the direction of conveyance and are formed in a predetermined length portion with radial outlet orifices for a discharge of water into said trough.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.