Continuous method of cleaning a slurry of crushed raw coal

Patent · Tue Aug 12 00:00:00 EDT 1980

OSTI ID:7049447

Liller, D I

A crushed raw coal washing plant using a plurality of deflector-fitted centrifugal cyclones to produce a washed and dried mixture of clean coarse and fine coal, and fine coal alone, with means to remove refuse and means to recycle clean fine coal slurry byproduct into the raw crushed coal inlet. Each centrifugal cyclone of said system is fitted with an inlet line deflector and equalizer means to create laminar flow and gravity separation whereby low density (1.6 or less) washed coal escapes through a first outlet at the top and refuse drains out of a second outlet at the bottom of said cyclone.

• Assignee: IFI; ERA-06-005703; EDB-81-008540
• Patent Number(s): US 4217207
• OSTI ID: 7049447
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CLEANING
COAL
COAL PREPARATION PLANTS
DESIGN
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
MATERIALS
MIXTURES
OPERATION
SEPARATION PROCESSES
SLURRIES
SUSPENSIONS
WASHING