煤田火区灭火砂土注浆材料用悬砂剂的制备和应用研究
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摘要
针对砂土颗粒为主的煤田火区,研究了注浆施工使用到的悬砂剂的材料组成、配比及制作工艺,同时对其施工应用进行了研究,解决了砂土颗粒、水和悬砂剂混合后形成的泥浆在长距离管道或钻孔内输送过程中沉淀堵塞管道的问题,有助于泥浆顺利到达填充空间,从而起到密闭裂隙、降温灭火、安全高效防止火区复燃的目的。通过大量的室内试验,研究了不同的原料制备的悬砂剂对砂土颗粒的悬浮效果,并在乌鲁木齐大泉湖煤田火区开展了应用试验,试验结果表明,采用钠基土、植物胶、纤维素、聚丙烯酸钠等主要材料和一些辅助材料制备的悬砂剂具有较好的悬浮性,采用二次加入的加工工艺配制的泥浆浆液具有较好的泵送性。该悬砂剂也可以用于矿山的采空区、巷道和塌陷坑等需填充治理的领域。
Aimed at sand-based coal filed fire area,the authors studied the material composition,proportion and production process of thickener used for grouting and studied its construction application,resolved the problem that the slurry composed of sand particles,water and thickener subsided and blocked the pipe during transporting in long-distance pipe and drilling,which was helpful for slurry transporting smoothly to the packing space and reaching the aim of fulfilling fractures,cooling,fire extinction and preventing the fire area re-ignition.Through a large number of laboratory tests,the suspending effect of thickener prepared by different raw materials were studied and its application test was conducted in Daquanhu coalfield fire area in Urumqi.The results showed that the thickener prepared by Na-clay,vegetable glue,cellulose,sodium polyacrylate and some other auxiliary materials had the best suspension ability,and the slurry prepared by the secondary adding process had better pumpability.The thickener could also be applied in mine gobs,roadways and collapse pits and other slurry filling area.
Aimed at sand-based coal filed fire area,the authors studied the material composition,proportion and production process of thickener used for grouting and studied its construction application,resolved the problem that the slurry composed of sand particles,water and thickener subsided and blocked the pipe during transporting in long-distance pipe and drilling,which was helpful for slurry transporting smoothly to the packing space and reaching the aim of fulfilling fractures,cooling,fire extinction and preventing the fire area re-ignition.Through a large number of laboratory tests,the suspending effect of thickener prepared by different raw materials were studied and its application test was conducted in Daquanhu coalfield fire area in Urumqi.The results showed that the thickener prepared by Na-clay,vegetable glue,cellulose,sodium polyacrylate and some other auxiliary materials had the best suspension ability,and the slurry prepared by the secondary adding process had better pumpability.The thickener could also be applied in mine gobs,roadways and collapse pits and other slurry filling area.
引文
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[2]高玉坤,黄志安,张英华等.碳酸氢盐阻化剂抑制遗煤自燃机理的试验研究[J].矿业研究与开发,2012(1)
[3]李良超,徐斌,杨军.基于计算流体力学模拟的下沉与上浮颗粒在搅拌槽内的固液悬浮特性[J].机械工程学报,2014(12)
[4]陈星欣,白冰,于涛等.粒径和渗流速度对多孔介质中悬浮颗粒迁移和沉积特性的耦合影响[J].岩石力学与工程学报,2013(s1)
[5]杨天,杨世伦,杨海飞等.悬浮絮凝体特征及其影响因子的综合作用---以长江口内河槽和口门最大浑浊带为例[J].华东师范大学学报(自然科学版),2017(4)
[6]杨勇.复合钠基膨润土泥浆护壁机理及其工程应用[J].地下空间与工程学报,2010(4)
[7]梁栋,杨仲田,杨卫兵等.钠基膨润土导热系数测试及误差分析[J].化工生产与技术,2012(1)
[8]邵红,孙晓宇,张广兴等.CPC-B/CMC有机复合膨润土凝胶的制备及表征[J].非金属矿,2016(2)
[9]薛学佳,周钰明,吕波.天然植物胶絮凝剂的改性和性能研究[J].精细化工,2001(7)
[10]张黎明,黄少杰,陈丹青.羧甲基纤维素钠/羟乙基纤维素复合溶液的性能[J].应用化学,1998(5)
[11]黄攀丽,沈晓骏,陈京环等.海藻酸钠的提取与功能化改性研究进展[J].林产化学与工业,2017(4)
[12]张军旗,金淑萍,韩玉琦等.粉煤灰复合聚丙烯酸钠凝胶的制备及其溶胀性能[J].应用化学,2016(4)
[13]王磊,焦晨旭,戴虹等.十二烷基苯磺酸钠改性膨润土修饰碳糊电极对铅离子的测定研究[J].化工新型材料,2016(7)
[14]包兴东.CaO应用在煤田灭火中的可行性探讨[J].中国西部科技,2013(4)