农机化研究
農機化研究
농궤화연구
JOURNAL OF AGRICULTURAL MECHANIZATION RESEARCH
2015年
10期
45-49
,共5页
乌兰图雅%王春光%谢胜仕%赵圆圆
烏蘭圖雅%王春光%謝勝仕%趙圓圓
오란도아%왕춘광%사성사%조원원
输送装置%功耗%玉米秸秆
輸送裝置%功耗%玉米秸稈
수송장치%공모%옥미갈간
screw conveyor%power consumption%crops straw
为了降低螺旋输送装置的输送功耗，提高输送效率，通过理论分析和试验研究，建立了不同输送条件下螺旋输送粗饲料功耗的数学模型，试验研究了螺旋转速及喂入量对输送装置的输送功耗和比能产量的影响。试验结果表明：转速每增加10r／min（喂入量为定值），输送装置的输送功耗增大5～9W，喂入量每增加0．1kg／s （转速为定值），输送功耗增大10～12 W；同时得知：输送含水率约24％的揉碎玉米秸秆（揉碎玉米秸秆的应用场合所要求的含水率范围为23％～75％）的最佳转速为120r／min，最佳喂入量为0．88kg／s，此时的比能产量为最高0．704～0．714kg／W。在此基础上，研究被输送物料的力学特性随含水率的变化情况及对输送功耗的影响。研究结果表明：物料的含水率每增加10％，其滑动摩擦角增大3°～5°，内摩擦角随含水率的增大呈先增大再减小的变化趋势，在一定的喂入量和转速下输送时输送功耗增大7～9W。
為瞭降低螺鏇輸送裝置的輸送功耗，提高輸送效率，通過理論分析和試驗研究，建立瞭不同輸送條件下螺鏇輸送粗飼料功耗的數學模型，試驗研究瞭螺鏇轉速及餵入量對輸送裝置的輸送功耗和比能產量的影響。試驗結果錶明：轉速每增加10r／min（餵入量為定值），輸送裝置的輸送功耗增大5～9W，餵入量每增加0．1kg／s （轉速為定值），輸送功耗增大10～12 W；同時得知：輸送含水率約24％的揉碎玉米秸稈（揉碎玉米秸稈的應用場閤所要求的含水率範圍為23％～75％）的最佳轉速為120r／min，最佳餵入量為0．88kg／s，此時的比能產量為最高0．704～0．714kg／W。在此基礎上，研究被輸送物料的力學特性隨含水率的變化情況及對輸送功耗的影響。研究結果錶明：物料的含水率每增加10％，其滑動摩抆角增大3°～5°，內摩抆角隨含水率的增大呈先增大再減小的變化趨勢，在一定的餵入量和轉速下輸送時輸送功耗增大7～9W。
위료강저라선수송장치적수송공모，제고수송효솔，통과이론분석화시험연구，건립료불동수송조건하라선수송조사료공모적수학모형，시험연구료라선전속급위입량대수송장치적수송공모화비능산량적영향。시험결과표명：전속매증가10r／min（위입량위정치），수송장치적수송공모증대5～9W，위입량매증가0．1kg／s （전속위정치），수송공모증대10～12 W；동시득지：수송함수솔약24％적유쇄옥미갈간（유쇄옥미갈간적응용장합소요구적함수솔범위위23％～75％）적최가전속위120r／min，최가위입량위0．88kg／s，차시적비능산량위최고0．704～0．714kg／W。재차기출상，연구피수송물료적역학특성수함수솔적변화정황급대수송공모적영향。연구결과표명：물료적함수솔매증가10％，기활동마찰각증대3°～5°，내마찰각수함수솔적증대정선증대재감소적변화추세，재일정적위입량화전속하수송시수송공모증대7～9W。
In order to reduce the power consumption of the screw conveyor and increase its conveying efficiency , the the-oretical analyzing method and experimental research were used to establish the mathematical models of the power con -sumption which suitable for the different conveying state .The effects of screw rotational speeds and the feeding rates on power consumption and productivity ratio were studied by experimental study .The results show that the conveying power consumption increases 5~9 W when the rotational speed increased 10 r/min ( filling rate is fixed value ) , and the conve-ying power consumption increases 10~12W when the filling rate increased 0.1kg/s(rotational speed is fixed value).The experimental results still prove that the screw conveyor has the highest productivity ratio :0 .704~0 .714 kg/W when the moisture content of material is 24%, the rotational speed and filling rate are 120r/min and 0.88kg/s respectively.At the same time , the mechanical properties of materials to be delivered with the change of moisture content and the effects of moisture content on the power consumption were studied .The results show that the sliding friction angle increases 3 °~5 ° when the moisture content of material is increased 10%.And the internal friction angle increase first and then decreased along with the increasing of moisture content ,and the power consumption of the screw conveyor increased 7~9 W under certain filling rate and rotational speed .
