Patent · US Expired

Balling process

US4171336A · kind A · utility

0Cited by
3References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 1978
Grant dateOct 16, 1979
Priority date
Expiry dateFeb 9, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2/12
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

In a continuous balling process, which may be the formation of green balls from iron ore, water and a binder in a balling drum as a stage in the pelletizing of iron ore, which includes a balling circuit in which undersized balls are recycled directly together with further raw material, the phenomenon known as surging is reduced by a method which involves including in the process a stage modifying the fundamental direct relationship between discharged undersize balls and those recharged, this unmodified direct relationship being the recurrence of the discharged balls identically as recharged balls after a constant time interval.

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