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U.S. Department of Energy
Office of Scientific and Technical Information

Flow and design characteristics of the hydrocyclone for the recovery of coal fines. Fourth quarterly report, June 1-August 31, 1982

Technical Report ·
OSTI ID:6800265
The new hydrocyclone system has been completed and is in operation. The design of this system was described in the second quarterly report. The system has performed even beyond our expectations. Parameters that can be varied on this system include flow rate, inlet area, hydrocyclone chamber length, vortex finder diameter and length, underflow diameter and cone angle (from 20/sup 0/ to 120/sup 0/ in 20/sup 0/ increments). This hydrocyclone is much more flexible than the original system; however, both systems are being utilized in this research. Modifications and improvements to the new system that have already been incorporated include the purchase and installation of a doppler flowmeter with digital display. This meter is especially nice in that the sensors are clamped to the outside of the pipe and consequently, do not disturb the flow. The system with digital readout was purchased for $2600. The system has also been modified so that the hydrocyclone now effectively discharges to the atmosphere. Data using the spheres in the new system has been taken to further investigate the effect of cone angle. Studies presently underway address the affects of variable hydrocyclone length (cylindrical portion) on the efficiency of the system.
Research Organization:
Southern Illinois Univ., Carbondale (USA)
DOE Contract Number:
FG22-81PC40807
OSTI ID:
6800265
Report Number(s):
DOE/PC/40807-T4; ON: DE83000154
Country of Publication:
United States
Language:
English