正在加载图片...
·678 工程科学学报,第40卷,第6期 流固体质量分数变化范围为65.8%~72.3%,泥床 锥浓密机压耙分析.北京科技大学学报,2013,35(12): 高度变化范围为2.5~9m,耙架扭矩百分比保持在 1553) 5.15%~10.4%.耙架扭矩主要受底流浓度影响, [9]Wu A X,Wang Y,Wang H J.Effect of rake number and arrange- ment on tailings thickening performance.J Cent South Unin Sci 特别是在底流固体质量分数72%时,扭矩增幅达 Technol,.2014,45(1):244 4.6%,泥床高度对耙架整体扭矩影响不大,与模型 (吴爱样,王勇,王洪江.导水杆数量和排列对尾矿浓密的影 预测结果吻合. 响机理.中南大学学报(自然科学版),2014,45(1):244) [10]Wu A X,Jiao H Z,Wang H J,et al.Mechanical model of 参考文献 seraper rake torque in deep-cone thickener.J Cent South Univ Sci [Scales PJ,Kumar A,van Deventer BB G,et al.Compressional Technol,2012,43(4):1469 dewatering of flocculated mineral suspensions.Can Chem Eng, (吴爱祥,焦华桔,王洪江,等。深锥浓密机搅拌刮泥耙扭矩 2015,93(3):549 力学模型.中南大学学报(自然科学版),2012,43(4): Gladman B R,Rudman M,Scales P J.The effect of shear on 1469) gravity thickening:pilot scale modelling.Chem Eng Sci,2010, [11]Shang P,Yan X Y,Zhao C H,et al.Design and research of 65(14):4293 new type of thickener rake.Coal Technol,2014,33(8):189 B]Rudman M,Paterson D A,Simic K.Efficiency of raking in gravi- (商鹃,闰晓阳,赵嫦虹,等.新型浓密机粑架的设计与研 ty thickeners.Int J Miner Process,2010,95(1-4):30 究.煤炭技术,2014,33(8):189) 4]Gunthert F W.Thickening zone and sludge removal in circular fi- [12]Rudman M,Simic K,Paterson D A,et al.Raking in gravity nal settling tanks.Water Sci Technol,1984,16(1041):303 thickeners.Int J Miner Process,2008,86(1-4):114 [5]Frost R C,Halliday J,Dee A S.Continuous consolidation of [13]Gladman B R,Rudman M,Scales P J.Experimental validation sludge in large scale gravity thickeners.Water Sci Technol,1993, of a 1 continuous thickening model using a pilot column.Chem 28(1):77 Eng Sci,2010,65(13):3937 6]Warden J H.The design of rakes for continuous thickeners espe- [14]Usher S P,Scales P J,White L R.Prediction of transient bed cially for waterworks coagulant sludges.Filtr Sep,1981:113 height in batch sedimentation at large times.AIChE,2006,52 Albertson O E,Okey R W.Evaluating scraper designs.Water En- (3):986 riron Technol,1992,4(1)52 [15]Comings E W,Pruiss C E,DeBord C.Continuous settling and [8]Li H.Wang H J.Wu A X,et al.Pressure rake analysis of deep thickening.Ind Eng Chem,1954,46(6):1164 cone thickeners based on tailings'settlement and rheological char- [16]Assaad JJ,Harb J,Maalouf Y.Effect of vane configuration on acteristics.I Univ Sci Technol Beijing,2013,35(12):1553 yield stress measurements of cement pastes.J Non-Veictonian (李辉,王洪江,吴爱样,等.基于尾砂沉降与流变特性的深 Fluid Mech,2016,230:31工程科学学报,第 40 卷,第 6 期 流固体质量分数变化范围为 65. 8% ~ 72. 3% ,泥床 高度变化范围为 2. 5 ~ 9 m,耙架扭矩百分比保持在 5. 15% ~ 10. 4% . 耙架扭矩主要受底流浓度影响, 特别是在底流固体质量分数 72% 时,扭矩增幅达 4. 6% ,泥床高度对耙架整体扭矩影响不大,与模型 预测结果吻合. 参 考 文 献 [1] Scales P J,Kumar A,van Deventer B B G,et al. Compressional dewatering of flocculated mineral suspensions. Can J Chem Eng, 2015,93( 3) : 549 [2] Gladman B R,Rudman M,Scales P J. The effect of shear on gravity thickening: pilot scale modelling. Chem Eng Sci,2010, 65( 14) : 4293 [3] Rudman M,Paterson D A,Simic K. Efficiency of raking in gravi￾ty thickeners. Int J Miner Process,2010,95( 1-4) : 30 [4] Günthert F W. Thickening zone and sludge removal in circular fi￾nal settling tanks. Water Sci Technol,1984,16( 10-11) : 303 [5] Frost R C,Halliday J,Dee A S. Continuous consolidation of sludge in large scale gravity thickeners. Water Sci Technol,1993, 28( 1) : 77 [6] Warden J H. The design of rakes for continuous thickeners espe￾cially for waterworks coagulant sludges. Filtr Sep,1981: 113 [7] Albertson O E,Okey R W. Evaluating scraper designs. Water En￾viron Technol,1992,4( 1) : 52 [8] Li H,Wang H J,Wu A X,et al. Pressure rake analysis of deep cone thickeners based on tailings’settlement and rheological char￾acteristics. J Univ Sci Technol Beijing,2013,35( 12) : 1553 ( 李辉,王洪江,吴爱祥,等. 基于尾砂沉降与流变特性的深 锥浓密机压耙分析. 北京科技大学学报,2013,35 ( 12 ) : 1553) [9] Wu A X,Wang Y,Wang H J. Effect of rake number and arrange￾ment on tailings thickening performance. J Cent South Univ Sci Technol,2014,45( 1) : 244 ( 吴爱祥,王勇,王洪江. 导水杆数量和排列对尾矿浓密的影 响机理. 中南大学学报( 自然科学版) ,2014,45( 1) : 244) [10] Wu A X,Jiao H Z,Wang H J,et al. Mechanical model of scraper rake torque in deep-cone thickener. J Cent South Univ Sci Technol,2012,43( 4) : 1469 ( 吴爱祥,焦华喆,王洪江,等. 深锥浓密机搅拌刮泥耙扭矩 力学模型. 中 南 大 学 学 报( 自 然 科 学 版) ,2012,43 ( 4 ) : 1469) [11] Shang P,Yan X Y,Zhao C H,et al. Design and research of new type of thickener rake. Coal Technol,2014,33( 8) : 189 ( 商鹛,闰哓阳,赵嫦虹,等. 新型浓密机耙架的设计与研 究. 煤炭技术,2014,33( 8) : 189) [12] Rudman M,Simic K,Paterson D A,et al. Raking in gravity thickeners. Int J Miner Process,2008,86( 1-4) : 114 [13] Gladman B R,Rudman M,Scales P J. Experimental validation of a 1-D continuous thickening model using a pilot column. Chem Eng Sci,2010,65( 13) : 3937 [14] Usher S P,Scales P J,White L R. Prediction of transient bed height in batch sedimentation at large times. AIChE J,2006,52 ( 3) : 986 [15] Comings E W,Pruiss C E,DeBord C. Continuous settling and thickening. Ind Eng Chem,1954,46( 6) : 1164 [16] Assaad J J,Harb J,Maalouf Y. Effect of vane configuration on yield stress measurements of cement pastes. J Non-Newtonian Fluid Mech,2016,230: 31 · 876 ·
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有