Aqueous three-phase foam supported by fly ash for coal spontaneous combustion prevention and control

被引：126
作者：
Qin, Botao [1 ]
Lu, Yi [1 ]
Li, Yong [2 ]
Wang, Deming [1 ]
机构：
[1] China Univ Min & Technol, Fac Safety Engn, Xuzhou 221116, Jiangsu, Peoples R China
[2] Beijing Bezold New Mat Co Ltd, Beijing 100102, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2014年 / 25卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Three-phase foams; Fly ash; Coal mine fires; Foam stability; STABILIZATION; STABILITY; SURFACTANTS; PARTICLES; CERAMICS; BUBBLES;
D O I：
10.1016/j.apt.2014.04.010
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This work deals with the preparation and characterization of fly ash (FA) supported aqueous three-phase foams containing N-2 for coal spontaneous combustion prevention and control. Uniform and dense three-phase foams featuring FA contents between 20 wt.% and 33 wt.% are prepared in batch mode using a home-made foam generating column with an internal Venturi tube. The effect of FA on the foamability, static and dynamic stability of the three-phase foams is discussed. Compared with two phase foams, the FA supported three-phase foams manifest higher static and dynamic stability, which increases with the FA content. Base on the excellent static and dynamic stability, a structure model to attach FA particles at the N-2-water interfaces of the three-phase foams was proposed to elucidate the observed behaviors. The as prepared FA supported three-phase foams, exhibiting excellent coal fire extinguishing characteristic, can be used as a promising fire extinguishing material, especially for preventing the large coal area spontaneous combustion or extinguishing fire in high and unknown locations in goaf. (C) 2014 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
引用
收藏
页码：1527 / 1533
页数：7
相关论文
共 35 条
[1]   A review on the utilization of fly ash [J].
Ahmaruzzaman, M. .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2010, 36 (03) :327-363
[2]   Some general features of limited coalescence in solid-stabilized emulsions [J].
Arditty, S ;
Whitby, CP ;
Binks, BP ;
Schmitt, V ;
Leal-Calderon, F .
EUROPEAN PHYSICAL JOURNAL E, 2003, 11 (03) :273-281
[3]   On the long-term stability of foams stabilised by mixtures of nano-particles and oppositely charged short chain surfactants [J].
Arriaga, Laura R. ;
Drenckhan, Wiebke ;
Salonen, Anniina ;
Rodrigues, Jhonny A. ;
Iniguez-Palomares, Ramon ;
Rio, Emmanuelle ;
Langevin, Dominique .
SOFT MATTER, 2012, 8 (43) :11085-11097
[4]   Origin of stabilisation of aqueous foams in nanoparticle-surfactant mixtures [J].
Binks, Bernard P. ;
Kirkland, Mark ;
Rodrigues, Jhonny A. .
SOFT MATTER, 2008, 4 (12) :2373-2382
[5]   Particles as surfactants - similarities and differences [J].
Binks, BP .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2002, 7 (1-2) :21-41
[6]   Preparation and characterization of foam ceramics from red mud and fly ash using sodium silicate as foaming agent [J].
Chen, Xingjun ;
Lu, Anxian ;
Qu, Gao .
CERAMICS INTERNATIONAL, 2013, 39 (02) :1923-1929
[7]   Prevention, control and/or extinguishment of coal seam fires using cellular grout [J].
Colaizzi, GJ .
INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2004, 59 (1-2) :75-81
[8]   A POSSIBLE MECHANISM OF STABILIZATION OF EMULSIONS BY SOLID PARTICLES [J].
DENKOV, ND ;
IVANOV, IB ;
KRALCHEVSKY, PA ;
WASAN, DT .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1992, 150 (02) :589-593
[9]   The role of surfactant type and bubble surface mobility in foam rheology [J].
Denkov, Nikolai D. ;
Tcholakova, Slavka ;
Golemanov, Konstantin ;
Ananthpadmanabhan, K. P. ;
Lips, Alex .
SOFT MATTER, 2009, 5 (18) :3389-3408
[10]   Factors controlling the formation and stability of air bubbles stabilized by partially hydrophobic silica nanoparticles [J].
Dickinson, E ;
Ettelaie, R ;
Kostakis, T ;
Murray, BS .
LANGMUIR, 2004, 20 (20) :8517-8525
1234