Patent · US Expired

Self-adjusting powder distributor

US4250774A · kind A · utility

2Cited by
11References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 31, 1979
Grant dateFeb 17, 1981
Priority date
Expiry dateJan 31, 1999

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF27B7/2016
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A self-adjusting powder distributor--which is particularly intended for use with alumina calcination apparatus--comprises a casing with a permeable partition, a plurality of outlets, and means for introducing preheated hydrate above the partition and fluidizing air therebelow. The fluidized hydrate withdraws through outlets of the casing for further treatment or partly as final product. The casing is provided with means by which the amounts and mutual ratios of the withdrawing material can be adjusted according to preselected values by altering the cross-sectional flow area or the level of the outlets.

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