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Cemented backfilling technology with unclassified tailings based on vertical sand silo
Wang Xin-min1; Zhao Bin1; Zhang Qin-li1; Xu Dong-sheng2
2008
Source PublicationJOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
ISSN1005-9784
Volume15Issue:6Pages:801-807
Abstract

A new technology characterized by rapidly non-mechanical settlement of unclassified tailings was developed based on a large number of tests, and dynamic settlement and continual slurry preparation without hardening in vertical sand silo were eventually realized by the addition of an effective flocculating agent (NPA). The results show that the sedimentation velocity of interface between unclassified tailings and water after the addition of NPA increases by 10-20 times, the sedimentation mass fraction of unclassified tailings at the bottom of vertical sand silo is up to 64%, the solid particle content of waste water meets the national standard, and the side influences of NPA can be removed by the addition of fly ash. The industrial test result shows that the system, the addition manner and the equipments are rational, and the vertical sand silo is used efficiently. This developed system is simple with large throughput, and the processing cost is 2.2 yuan(RMB)/m(3), only 10%-20% of that by mechanical settlement.

KeywordVertical Sand Silo Unclassified Tailings Flocculating Agent Settlement Concentration Industrial Test
DOI10.1007/s11771-008-0148-y
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000261752900012
PublisherJOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/3183
Collection岩土力学所知识全产出_期刊论文
Affiliation1.Cent S Univ, Sch Resources & Safety Engn;
2.Chinese Acad Sci, Wuhan Inst Rock & Soil Res
Recommended Citation
GB/T 7714
Wang Xin-min,Zhao Bin,Zhang Qin-li,et al. Cemented backfilling technology with unclassified tailings based on vertical sand silo[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,2008,15(6):801-807.
APA Wang Xin-min,Zhao Bin,Zhang Qin-li,&Xu Dong-sheng.(2008).Cemented backfilling technology with unclassified tailings based on vertical sand silo.JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,15(6),801-807.
MLA Wang Xin-min,et al."Cemented backfilling technology with unclassified tailings based on vertical sand silo".JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY 15.6(2008):801-807.
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