超微粉替代部分水泥胶结充填试验研究
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摘要
为降低矿山充填成本,以电炉法制黄磷时得到的超微粉为原料,将其与普通硅酸盐水泥按不同比例混合制备充填胶凝材料,对充填试样进行了实验室试验和工业试验,结果表明:超微粉替代部分水泥充填体强度满足设计及生产要求,在工业试验得到的366个试样中,试样平均强度为4.5 MPa,大部分在3～6 MPa之间,最低强度为1.68MPa,均大于设计要求的强度。将超微粉替代部分水泥用于充填料的制备,可降低水泥用量,减少充填费用,提高经济效益。为实现资源优化配置、合理利用资源,开辟了一条新路径。
Laboratory and industrial tests were carried out on the filling samples to reduce the costs of mine filling with the ultrafine powder obtained in the process of producing yellow phosphorus by electric furnace as the raw material,which was mixed with ordinary Portland cement in different proportions to prepare the filling cementing materials.The results show that the strength of some cement backfills replaced by ultrafine powder meets the design and production requirements.Among the 366 samples obtained in the industrial tests,the average strength of the samples is 4.5 MPa,most of them are between 3 and 6 MPa,and the minimum strength is 1.68 MPa,which is greater than the strength required by the design.Utilization of ultrafine powder instead of some cement in the preparation of filling materials can reduce cement consumption,reduce filling costs and improve economic benefit,opening up a new path to realize the optimal allocation and rational utilization of the resources.
Laboratory and industrial tests were carried out on the filling samples to reduce the costs of mine filling with the ultrafine powder obtained in the process of producing yellow phosphorus by electric furnace as the raw material,which was mixed with ordinary Portland cement in different proportions to prepare the filling cementing materials.The results show that the strength of some cement backfills replaced by ultrafine powder meets the design and production requirements.Among the 366 samples obtained in the industrial tests,the average strength of the samples is 4.5 MPa,most of them are between 3 and 6 MPa,and the minimum strength is 1.68 MPa,which is greater than the strength required by the design.Utilization of ultrafine powder instead of some cement in the preparation of filling materials can reduce cement consumption,reduce filling costs and improve economic benefit,opening up a new path to realize the optimal allocation and rational utilization of the resources.
引文
[1]GB/T 51003-2014,矿物掺合料应用技术规范[S].
[2]解联库,董凯程,万串串,等.瓮福磷矿大塘矿段急倾斜中厚多层矿体安全高效采矿方法[J].有色金属工程,2015,5(S1):58-61.
[3]杜向红.铅锌矿尾砂综合回收与利用技术研究[D].长沙:中南大学,2012.
[4]周爱民.矿山废料胶结充填[M].北京:冶金工业出版社,2007.
[2]解联库,董凯程,万串串,等.瓮福磷矿大塘矿段急倾斜中厚多层矿体安全高效采矿方法[J].有色金属工程,2015,5(S1):58-61.
[3]杜向红.铅锌矿尾砂综合回收与利用技术研究[D].长沙:中南大学,2012.
[4]周爱民.矿山废料胶结充填[M].北京:冶金工业出版社,2007.