Pilot-scale evaluation of hyperbaric filtration of ultra fine clean coal

J. G. Groppo; B. K. Parekh

doi:10.1080/07349349608905258

Pilot-scale evaluation of hyperbaric filtration of ultra fine clean coal

J. G. Groppo, B. K. Parekh

Mining Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A pilot scale evaluation of continuous pressure filtration was conducted on minus 200 mesh clean coal recovered by column flotation using an Andritz-Ruthner trailer mounted hyperbaric filter. Results showed that increasing vessel pressure for a given cake formation angle (CFA), increased cake thickness and throughput, while decreasing cake moisture. Baseline testing concluded that filter operating parameters of 3 bar pressure, 1.5 rpm filter speed and 165° CFA produced a 15.7 mm thick cake with a cake moisture of 23.7 percent. The air consumption to achieve these results was 242 Nm³/t (452 cfm/t) and the resulting throughput was 793 kg/m²/hr (163 1b/ft²/hr). Using these operating parameters, either nonionic or cationic surfactants effectively reduced cake moisture to below 20 percent at dosages as low as 0.25 kg/t. The use of flocculants increased throughput but also increased cake moisture.

Original language	English
Pages (from-to)	61-70
Number of pages	10
Journal	Coal Preparation
Volume	17
Issue number	1-2
DOIs	https://doi.org/10.1080/07349349608905258
State	Published - 1996

Keywords

Coal
Dewatering
Flocculants
Moisture
Pressure filtration
Surfactants

ASJC Scopus subject areas

Fuel Technology
Geotechnical Engineering and Engineering Geology

Access to Document

10.1080/07349349608905258

Cite this

@article{628e77c531344138befc3851f25f0bbb,

title = "Pilot-scale evaluation of hyperbaric filtration of ultra fine clean coal",

abstract = "A pilot scale evaluation of continuous pressure filtration was conducted on minus 200 mesh clean coal recovered by column flotation using an Andritz-Ruthner trailer mounted hyperbaric filter. Results showed that increasing vessel pressure for a given cake formation angle (CFA), increased cake thickness and throughput, while decreasing cake moisture. Baseline testing concluded that filter operating parameters of 3 bar pressure, 1.5 rpm filter speed and 165° CFA produced a 15.7 mm thick cake with a cake moisture of 23.7 percent. The air consumption to achieve these results was 242 Nm3/t (452 cfm/t) and the resulting throughput was 793 kg/m2/hr (163 1b/ft2/hr). Using these operating parameters, either nonionic or cationic surfactants effectively reduced cake moisture to below 20 percent at dosages as low as 0.25 kg/t. The use of flocculants increased throughput but also increased cake moisture.",

keywords = "Coal, Dewatering, Flocculants, Moisture, Pressure filtration, Surfactants",

author = "Groppo, {J. G.} and Parekh, {B. K.}",

year = "1996",

doi = "10.1080/07349349608905258",

language = "English",

volume = "17",

pages = "61--70",

number = "1-2",

}

TY - JOUR

T1 - Pilot-scale evaluation of hyperbaric filtration of ultra fine clean coal

AU - Groppo, J. G.

AU - Parekh, B. K.

PY - 1996

Y1 - 1996

N2 - A pilot scale evaluation of continuous pressure filtration was conducted on minus 200 mesh clean coal recovered by column flotation using an Andritz-Ruthner trailer mounted hyperbaric filter. Results showed that increasing vessel pressure for a given cake formation angle (CFA), increased cake thickness and throughput, while decreasing cake moisture. Baseline testing concluded that filter operating parameters of 3 bar pressure, 1.5 rpm filter speed and 165° CFA produced a 15.7 mm thick cake with a cake moisture of 23.7 percent. The air consumption to achieve these results was 242 Nm3/t (452 cfm/t) and the resulting throughput was 793 kg/m2/hr (163 1b/ft2/hr). Using these operating parameters, either nonionic or cationic surfactants effectively reduced cake moisture to below 20 percent at dosages as low as 0.25 kg/t. The use of flocculants increased throughput but also increased cake moisture.

AB - A pilot scale evaluation of continuous pressure filtration was conducted on minus 200 mesh clean coal recovered by column flotation using an Andritz-Ruthner trailer mounted hyperbaric filter. Results showed that increasing vessel pressure for a given cake formation angle (CFA), increased cake thickness and throughput, while decreasing cake moisture. Baseline testing concluded that filter operating parameters of 3 bar pressure, 1.5 rpm filter speed and 165° CFA produced a 15.7 mm thick cake with a cake moisture of 23.7 percent. The air consumption to achieve these results was 242 Nm3/t (452 cfm/t) and the resulting throughput was 793 kg/m2/hr (163 1b/ft2/hr). Using these operating parameters, either nonionic or cationic surfactants effectively reduced cake moisture to below 20 percent at dosages as low as 0.25 kg/t. The use of flocculants increased throughput but also increased cake moisture.

KW - Coal

KW - Dewatering

KW - Flocculants

KW - Moisture

KW - Pressure filtration

KW - Surfactants

UR - http://www.scopus.com/inward/record.url?scp=0030410691&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030410691&partnerID=8YFLogxK

U2 - 10.1080/07349349608905258

DO - 10.1080/07349349608905258

M3 - Article

AN - SCOPUS:0030410691

VL - 17

SP - 61

EP - 70

IS - 1-2

ER -

Pilot-scale evaluation of hyperbaric filtration of ultra fine clean coal

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this