Evaluation of the fire hazard of the process of drying flotation concentrate in a fluidized bed

Journal Article · Tue Mar 01 04:00:00 EST 1983 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5193792

Govorov, V I; Tatarchuk, V V; Vasyuchkov, E I; Muzychuk, V D; Gollusov, V M; Anisimov, N Z

Karaganda Metals use fluid bed drying for their minus 1 mm concentrate with moisture of 25-32% and ash 9-12%, fired by coke-oven gas at 560 C. Samples were taken from the moist concentrate conveyor, reactor weirs, dry and wet scrubber cyclones and dust settling out on the offtake belt structure, and subjected to ignition tests. It was found that the ignition temperature was determined by the degree of dispersion, but reflected the actual properties of the material (e.g. volatile matter). Duct temperatures above 200 C are to be avoided, as these could lead to ignition in fluidized bed drying plants. 4 references

• OSTI ID: 5193792
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 3; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
016000 -- Coal
Lignite
& Peat-- Health & Safety
ASHES
COAL FINES
COAL PREPARATION
COAL PREPARATION PLANTS
DISTRIBUTION
DRYING
EXPLOSIONS
FIRE HAZARDS
FLOTATION
FLUIDIZED BED
HAZARDS
IGNITION
INDUSTRIAL PLANTS
MATTER
PARTICLE SIZE
RESIDUES
SEPARATION PROCESSES
SIZE
TEMPERATURE EFFECTS
VOLATILE MATTER