Patent · US Expired

Apparatus for manufacturing and stabilizing coal-oil-water fuel mixture

US4401437A · kind A · utility

11Cited by
5References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 28, 1981
Grant dateAug 30, 1983
Priority date
Expiry dateDec 28, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S261/48
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Apparatus suitable for making a coal-oil-water fuel mixture includes a grinder for grinding coal to a relatively fine particle size, a mixer for controllably mixing the coal particles with water and oil and a sonic agitator to stabilize the mixture. The sonic agitator comprises a processing chamber associated with or having two opposed plates which are oscillated by appropriate transducers at controllable phase frequency and amplitude. The spacing between the plates is preferably of the order of 500 meters per second divided by the applied sonic frequency, and is at least 25 mm.

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