Filtration of coal refuse
Conference
·
· Trans. Soc. Min. Eng. AIME; (United States)
OSTI ID:7347004
Continuous vacuum disk filters are increasingly being used to filter refuse from the fine-coal washing circuits as it becomes important to close the water circuits and eliminate sludge holding ponds. This paper discusses past experience filtering refuse, effects of solids concentration in the filter feed, use of polymer flocculation aids, effect of flocculation devices, and effects of particle size and ash content on the filtration rate. Detailed tests were performed on existing installations utilizing coal refuse filters to determine optimum flocculant dosage, solids concentration, and disk rotation speed to form a dischargeable cake. Information was also obtained showing effect of flocculant addition on the moisture of the filter cake.
- Research Organization:
- Envirotech Corp., Pittsburgh
- OSTI ID:
- 7347004
- Conference Information:
- Journal Name: Trans. Soc. Min. Eng. AIME; (United States) Journal Volume: 260:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CENTRIFUGES
CLEANING
COAL
COAL FINES
COAL PREPARATION
COMMINUTION
CONCENTRATORS
DISPERSIONS
ENERGY SOURCES
FILTERS
FILTRATION
FLOCCULATION
FOSSIL FUELS
FUELS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
POLYPROPYLENE
PRECIPITATION
REMOVAL
SEPARATION PROCESSES
SLURRIES
SUSPENSIONS
WASHING
WATER REMOVAL
010800* -- Coal
Lignite
& Peat-- Waste Management
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
CARBONACEOUS MATERIALS
CENTRIFUGES
CLEANING
COAL
COAL FINES
COAL PREPARATION
COMMINUTION
CONCENTRATORS
DISPERSIONS
ENERGY SOURCES
FILTERS
FILTRATION
FLOCCULATION
FOSSIL FUELS
FUELS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
POLYPROPYLENE
PRECIPITATION
REMOVAL
SEPARATION PROCESSES
SLURRIES
SUSPENSIONS
WASHING
WATER REMOVAL