煤田火区灭火砂土注浆材料用悬砂剂的制备和应用研究  

Preparation and application of thickener used for fire sand grouting materials in fire area of coal field

作　　者：白边疆 包兴东 赵浚延 Bai Bianjiang;Bao Xingdong;Zhao Junyan(Xinjiang Coal Field Fire-Fighting Engineering Bureau,Urumqi,Xinjiang 830063,China;Changji Pilot Engineering Materials Co.,Ltd.,Changji,Xinjiang 830011,China)

机构地区：[1]新疆煤田灭火工程局,新疆自治区乌鲁木齐市830063 [2]昌吉市先导工程材料有限责任公司,新疆自治区昌吉市830011

出　　处：《中国煤炭》2019年第2期108-113,共6页China Coal

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.

关 键 词：悬砂剂 煤田火区 砂土颗粒 注浆施工 

分 类 号：TD753[矿业工程—矿井通风与安全]