揉碎玉米秸秆螺旋输送装置参数试验优化
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摘要
针对农业纤维物料螺旋输送装置输送功耗大、效率低的问题,以比能产量和功耗为输送性能的评价指标,采用Box-Behnken响应面试验方法进行试验,建立各指标与因素间的回归数学模型,并以比能产量最大,功耗最小为优化目标,对影响螺旋输送性能的结构与工作参数进行优化。结果表明,当螺距为300～355mm,螺旋轴转速100～140r/min、喂入量30～70kg/min时,螺旋输送装置能满足较高效率较低能耗输送要求;各因素对比能产量影响的主次顺序为:喂入量、螺距、螺旋轴转速;影响功耗的主次顺序为:喂入量、螺旋轴转速、螺距;螺旋输送装置优化参数组合为:螺距325mm,螺旋轴转速100r/min,喂入量30kg/min。优化后螺旋输送装置的比能产量为0.084 6kg/W,较优化前提高了4.96%,功耗为439.781W,较优化前降低了2.44%。
In order to reduce the power consumption of screw conveyor and increase its conveying efficiency,its power consumption and productivity ratio were used as evaluation index to establish a regression mathematical model between the indexes and the factors by applying Box-Behnken response surface test method.The structure and working parameters which affecting the conveying performance of the screw conveyor were then optimized.The results showed that when the pitch was 300-355 mm,the rotational speed was 100-140 r/min,and the feeding quantity was 30-70 kg/min,the screw conveyor could meet the requirement of high efficiency and low energy consumption.The primary and secondary order of the effect of the factors on the productivity ratio were feeding quantity,pitch,rotational speed.And the primary and secondary order of the power consumption were feeding quantity,rotational speed,pitch.The pitch of 325 mm,rotational speed of 100 r/min,feeding quantity of 30 kg/min were the best combination factors,power consumption and the productivity ratio were respectively 439.781 Wand 0.084 6 kg/W,the power consumption was decreased by 2.44%,and the productivity ratio was increased by 4.96%compared with that before optimization.
In order to reduce the power consumption of screw conveyor and increase its conveying efficiency,its power consumption and productivity ratio were used as evaluation index to establish a regression mathematical model between the indexes and the factors by applying Box-Behnken response surface test method.The structure and working parameters which affecting the conveying performance of the screw conveyor were then optimized.The results showed that when the pitch was 300-355 mm,the rotational speed was 100-140 r/min,and the feeding quantity was 30-70 kg/min,the screw conveyor could meet the requirement of high efficiency and low energy consumption.The primary and secondary order of the effect of the factors on the productivity ratio were feeding quantity,pitch,rotational speed.And the primary and secondary order of the power consumption were feeding quantity,rotational speed,pitch.The pitch of 325 mm,rotational speed of 100 r/min,feeding quantity of 30 kg/min were the best combination factors,power consumption and the productivity ratio were respectively 439.781 Wand 0.084 6 kg/W,the power consumption was decreased by 2.44%,and the productivity ratio was increased by 4.96%compared with that before optimization.
引文
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[16]谢凡.肉羊饲喂混合搅拌机混料系统结构设计与研究[D].石河子:石河子大学,2014Xie F.The design and research of feeding and mixing blender for mutton sheep[D].Shihezi:Shihezi University,2014(in Chinese)
[17]冯莉,李天舒,徐凯宏.生物质燃料粉碎成型机螺旋运输装置设计[J].森林工程,2015,31(3):101-105Feng L,Li T S,Xu K H.Design of screw conveyor device for biomass crushing and molding machine[J].Forest Engineering,2015,31(3):101-105(in Chinese)
[18] Rackl M,Günthner W A.Experimental investigation on the influence of different grades of wood chips on screw feeding performance[J].Biomass and Bioenergy,2016,88:106-115
[19]赵圆圆,王春光,乌兰图雅,王金莲.切碎玉米秸秆螺旋输送性能试验研究[J].农机化研究,2015(10):163-167Zhao Y Y,Wang C G,Wulantuya,Wang J L.Performance experiment of screw conveyor for chopped corn stalks[J].Journal of Agricultural Mechanization Research,2015(10):163-167(in Chinese)
[20]李晓阳,王春光.玉米秸秆在LS型螺旋输送机上的性能试验研究[J].农机化研究,2015,37(2):161-165Li X Y,Wang C G.The experimental study on maize straw on the type LS screw conveyor[J].Journal of Agricultural Mechanization Research,2015,37(2):161-165(in Chinese)
[21]乌兰图雅,王春光,祁少华,闫建国,王金莲.揉碎玉米秸秆螺旋输送性能试验分析[J].农业工程学报,2015,31(21):51-59Wulantuya,Wang C G,Qi S H,Yan J G,Wang J L.Test and analysis of performance of screw conveyor for rubbing and breaking corn straw[J].Transactions of the Chinese Society of Agricultural Engineering,2015,31(21):51-59(in Chinese)
[22]乌兰图雅,王春光,祁少华,王晓蓉,王海超,王金莲.揉碎玉米秸秆螺旋输送理论模型分析与试验[J].农业工程学报,2016,32(22):18-26Wulantuya,Wang C G,Qi S H,Wang X R,Wang H C,Wang J L.Theoretical model analysis and test of screw conveyor for rubbing and breaking corn straw[J].Transactions of the Chinese Society of Agricultural Engineering,2016,32(22):18-26(in Chinese)
[23] JB/T 7679—2008螺旋输送机[S].北京:机械工业出版社,2008JB/T 7679—2008Screw conveyor[S].Beijing:Mechanical Industry Press,2008(in Chinese)
[2] Garrido M A,Conesa J A,Garcia M D.Characterization and production of fuel briquettes made from biomass and plastic wastes[J].Energies,2017,10(7):1-12
[3] Roberts A W. Design considerations and performance evaluation of screw conveyors[J].Powder Technology,2009,19(3):4-9
[4]李尚平,邓雄,叶才福,王海波,沈中华.甘蔗切割器螺旋提升机构输送性能分析与改进[J].农业工程学报,2016,32(5):21-28Li S P,Deng X,Ye C F,Wang H B,Shen Z H.Analysis and improvement of sugarcane cutter spiral lifting mechanism[J].Transactions of the Chinese Society for Agricultural Engineering,2016,32(5):21-28(in Chinese)
[5]陈雄飞,罗锡文,王在满,张明华,胡炼,杨文武,曾山,臧英,韦后定,郑乐.两级螺旋排肥装置的设计与试验[J].农业工程学报,2015,31(3):10-16Chen X F,Luo X W,Wang Z M,Zhang M H,Hu L,Yang W W,Zeng S,Zang Y,Wei H D,Zheng L.Design and experiment of fertilizer distribution apparatus with double-level screws[J]. Transactions of the Chinese Society of Agricultural Engineering,2015,31(3):10-16(in Chinese)
[6] Roberts,Alan W.Bulk solids:Optimizing screw sonveyors[J].Chemical Engineering,2015,122(2):62-67
[7]王明峰,徐强,蒋恩臣,任永志,吴宇健,陈晓堃.生物质无轴螺旋连续热解装置送料器设计及中试[J].农业工程学报,2017,33(4):83-88Wang M F,Xu Q,Jiang E C,Ren Y Z,Wu Y J,Chen X K.Design and pilot test for feeder of biomass shaftless screw continuous pyrolysis device[J].Transactions of the Chinese Society of Agricultural Engineering,2017,33(4):83-88(in Chinese)
[8] Orefice L,Khinast J G.DEM study of granular transport in partially filled horizontal screw conveyors[J]. Powder Technology,2017,305:347-356
[9] Larsson S H.Kinematic wall friction properties of reed canary grass powder at high and low normal stresses[J].Powder Technology,2010,198(1):108-113
[10]田宜水,姚宗路,欧阳双平,赵立欣,孟海波,侯书林.切碎农作物秸秆理化特性试验[J].农业机械学报,2011,42(9):124-128Tian Y S,Yao Z L,Ouyang S P,Zhao L X,Meng H B,Hou S L.Physical and chemical characterization of biomass crushed straw[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(9):124-145(in Chinese)
[11]霍丽丽,孟海波,田宜水,赵立欣,侯书林.粉碎秸秆类生物质原料物理特性试验[J].农业工程学报,2012,28(11):189-195Huo L L,Meng H B,Tian Y S,Zhao L X,Hou S L.Experimental study on physical property of smashed crop straw[J]. Transactions of the Chinese Society of Agricultural Engineering,2012,28(11):189-195(in Chinese)
[12]房欣,陈海涛,黄振华,李丽霞.不同含水率大豆秸秆与不同材料间滑动摩擦特性的研究[J].大豆科学,2012,31(5):838-841Fang X,Chen H T,Huang Z H,Li L X.Sliding friction characteristic of different moisture content of soybean stalk with different materials[J].Soybean Science,2012,31(5):838-841(in Chinese)
[13]代其春.苜蓿压扁收割机割台的设计[D].乌鲁木齐:新疆农业大学,2014Dai Q C.Design of alfalfa mower crusher header[D].Urumchi:Xinjiang Agriculture University, 2014(in Chinese)
[14]石增武.玉米收获机茎秆切割铺放装置的研究[D].淄博:山东理工大学,2011Shi Z W.The study on stalks cutoff and windrowing device of corn harvester[D]. Zibo:Shandong University of Technology,2006(in Chinese)
[15]蒋恩臣,苏旭林,王明峰,熊磊明,赵创,许细微.生物质连续热解反应装置的变螺距螺旋输送器设计[J].农业机械学报,2013,44(2):121-124Jiang E C,Su X L,Wang M F,Xiong L M,Zhao C,Xu X W.Design of variable pitch spiral conveyor for biomass continual pyrolysis reactor[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(2):121-124(in Chinese)
[16]谢凡.肉羊饲喂混合搅拌机混料系统结构设计与研究[D].石河子:石河子大学,2014Xie F.The design and research of feeding and mixing blender for mutton sheep[D].Shihezi:Shihezi University,2014(in Chinese)
[17]冯莉,李天舒,徐凯宏.生物质燃料粉碎成型机螺旋运输装置设计[J].森林工程,2015,31(3):101-105Feng L,Li T S,Xu K H.Design of screw conveyor device for biomass crushing and molding machine[J].Forest Engineering,2015,31(3):101-105(in Chinese)
[18] Rackl M,Günthner W A.Experimental investigation on the influence of different grades of wood chips on screw feeding performance[J].Biomass and Bioenergy,2016,88:106-115
[19]赵圆圆,王春光,乌兰图雅,王金莲.切碎玉米秸秆螺旋输送性能试验研究[J].农机化研究,2015(10):163-167Zhao Y Y,Wang C G,Wulantuya,Wang J L.Performance experiment of screw conveyor for chopped corn stalks[J].Journal of Agricultural Mechanization Research,2015(10):163-167(in Chinese)
[20]李晓阳,王春光.玉米秸秆在LS型螺旋输送机上的性能试验研究[J].农机化研究,2015,37(2):161-165Li X Y,Wang C G.The experimental study on maize straw on the type LS screw conveyor[J].Journal of Agricultural Mechanization Research,2015,37(2):161-165(in Chinese)
[21]乌兰图雅,王春光,祁少华,闫建国,王金莲.揉碎玉米秸秆螺旋输送性能试验分析[J].农业工程学报,2015,31(21):51-59Wulantuya,Wang C G,Qi S H,Yan J G,Wang J L.Test and analysis of performance of screw conveyor for rubbing and breaking corn straw[J].Transactions of the Chinese Society of Agricultural Engineering,2015,31(21):51-59(in Chinese)
[22]乌兰图雅,王春光,祁少华,王晓蓉,王海超,王金莲.揉碎玉米秸秆螺旋输送理论模型分析与试验[J].农业工程学报,2016,32(22):18-26Wulantuya,Wang C G,Qi S H,Wang X R,Wang H C,Wang J L.Theoretical model analysis and test of screw conveyor for rubbing and breaking corn straw[J].Transactions of the Chinese Society of Agricultural Engineering,2016,32(22):18-26(in Chinese)
[23] JB/T 7679—2008螺旋输送机[S].北京:机械工业出版社,2008JB/T 7679—2008Screw conveyor[S].Beijing:Mechanical Industry Press,2008(in Chinese)