(1. 北京科技大學 土木與資源工程學院，北京 100083；
2. 北京科技大學 順德研究生院，佛山 528399；
3. 河南理工大學 土木工程學院，焦作 454000；
4. 山東理工大學 資源與環(huán)境工程學院，淄博 255000；
5. 北京科技大學 金屬礦山高效開采與安全教育部重點實驗室，北京 100083)
摘 要: 全尾砂料漿的高效和深度濃密是獲得合格膏體濃度、決定膏體充填質(zhì)量的關鍵。全尾砂高效絮凝是全尾砂料漿濃密的前提，全尾砂絮團的快速沉降決定全尾砂料漿濃密的效率，而全尾砂濃密床層的深度脫水決定全尾砂料漿濃密的效果。為此，本文對近20年來我國在全尾砂料漿濃密方面的研究方法和研究成果進行了分析與總結，詳細分析了全尾砂絮凝行為及其動力學模型、全尾砂絮團沉降規(guī)律及其機理、全尾砂濃密床層深度脫水規(guī)律及其機理、深錐濃密機的耙架扭矩模型及關鍵結構參數(shù)設計，并對未來發(fā)展趨勢進行了展望。
關鍵字: 膏體充填；全尾砂；絮凝；沉降；濃密；脫水
（1. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China;
3. School of Civil and Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
4. College of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255000, China;
5. Key Laboratory of High-Efficient Mining and Safety of Metal Mines of the Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China）
Abstract:The high efficiency and deep thickening of full-tailings slurry is the key to obtain a qualified concentration of paste and satisfactory quality of cemented paste backfill. The efficient flocculation of full-tailings is the premise of full-tailings slurry thickening. The rapid settlement of full-tailings flocs determines the efficiency of full-tailings slurry thickening, and the deep dewatering of thickened full-tailings bed determines the effect of full-tailings slurry thickening. Therefore, this paper reviewed the research methodology and research results of full-tailings slurry thickening in China in recent 20 years, including the flocculation behavior of full-tailings and its kinetics model, the settling law of full-tailings floc and its mechanism, the dewatering law of thickened full-tailings bed and its mechanism, the torque model of rake of deep-cone thickener (DCT), and the design of key structural parameters of DCT were analyzed detailedly. Moreover, the future development trend was also discussed.
Key words: cemented paste backfill; full tailings; flocculation; settling; thickening; dewatering
