Many coal preparation plants are forced to discard fine coal particles because of the inability of existing technologies to reduce the moisture content of this product to an acceptable level. In light of this problem, a new ultrafine dewatering process called hyperbaric filter centrifugation (HFC) has been developed.
2020-9-25 FINE COAL DEWATERING USING HYPERBARIC FILTER CENTRIFUGATION by Serhat Keles Dissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mining and Minerals Engineering Gerald H. Luttrell, Chairman Roe-Hoan Yoon, Co-Chairman
B. Basim and R.-H. Yoon, Dewatering Fine Coal using Novel Methods, SME Annual Meeting, Orlando, Florida, March 9–11, 1998. Apparatus for the Dewatering of Coal and Mineral Slurries Jan 1999
2010-2-25 ABSTRACT Many coal preparation plants are forced to discard their fine coal because of the inability of existing technologies to reduce the moisture content of this product to an acceptable level. In an effort to overcome this problem, a new mechanical dewatering method has been developed that combines centrifugation with pressure filtration.
FINE DEWATERING FLOATATION TAILINGS TREATMENT TAILINGS DISPOSAL Flocculant systems Heavy-duty belt press Filter press Solid bowl centrifuge Thickener Hyperbaric disc filter Vacuum disc filter Vacuum drum filter Flocculant systems Application Coarse coal Coal fines Ultra fine coal Tailings slurries Particle size mm 32-1 2-025 1-0150 Screen...
2020-4-6 The dewatering of fine coal is widely considered to be the most difficult and costly step in coal preparation. The cost of dewatering is a strong function of particle size and increases sharply for particles finer than 28 mesh. Fine Coal Dewatering Using Hyperbaric Filter Centrifugation. PhD Dissertation, Virginia Tech, Blacksburg. Leonard
2018-6-16 The fine coal slurry (∼42 weight percent minus 25 µm) could be dewatered to a low moisture (24%) using 482 kPa (70 psi) pressure. This article describes two novel approaches for improving dewatering of the fine coal slurry using hyperbaric filtration, such as using a modified filter support and split-size dewatering.
2017-1-22 3. Dewatering of fine coal refuse Table 2 lists the performance data for fine coal refuse dewatering. Note, that Hyperbaric filter (HBF) provides the lowest moisture filter cake, However, HBF being an expensive technique and refuse being waste material, the coal company do not want to invest money in dewatering refuse.
Advanced solid-liquid separation for dewatering fine coal tailings by combining chemical reagents and solid bowl centrifugation. Pilot-scale solid-water separation experiments by solid bowl centrifugation. Pilot-scale dewatering trials were carried out on the coal tailings samples with 15% w/w solids. A 150 mm (6″) pilot-scale solid bowl
2018-3-20 FILTER FOR FINE COAL PRODUCT DEWATERING B Drummond 1, W Mackinnon,C Sorensen 1 1 QCC Resources, 3 Alfred Close, East Maitland, Australia Abstract Hyperbaric disc filter dewatering of coal flotation concentrates is common place in China, Eastern Europe and Russia. The hyperbaric disc filter uses an air pressure of up to 0.6 MPa, to drive the