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单位数据t/h11.5256.7t/h360360m0.50.5m/s0.41t/m30.320.7皮带倾角8o~15o16o~20o110oC0.95~0.90.9~0.810.9Q=KB2VγC皮带运煤机的设计出力一般取0.85C:倾斜运输出力降低系数B:皮带宽度V:皮带速度γ:煤的堆积比重Q:皮带运煤机出力K:断面系数,TD75型按385计算符号vQLnHk1k2k3k4P/PA电机清洁、干燥ω/5006508001000120014000.0180.00610.00740.010.01380.01910.0230.020.00670.00820.0110.01530.02120.02550.0250.00840.01030.01370.01910.02650.03190.030.010.01240.01650.02290.03180.03830.0350.01170.01440.01920.02680.03710.04460.040.01340.01650.0220.03060.04240.0510.0250.035少量尘埃,正常湿度大量尘埃,湿度大0.020.018平型托辊阻力系数ω//表2空载运行功率系数B/mmk1传动滚筒轴功率对于L<80m的带式输送机,可根据以下公式进行简易计算:PA=(k1Lnv+k2LnQ±0.0273QH)k3k4+∑P/k1Lnv:输送带及托辊转动部分运转功率,KW;k2LnQ:物料水平提升功率,KW;表1托辊阻力系数0.0273QH:物料垂直提升功率,物料向下输送时取“+”,向下输送时取“-”,KW。物料水平运行系数,可根据托辊阻力系数ω/按表3选取附加功率系数,根据输送机水平投影长度Ln和输送机倾角δ,按表4选取输送机水平投影长度意义输送带速度输送量卸料车功率系数,无卸料车时,k4=1;有卸料车时,光面滚筒k4=1.16,胶面滚筒k4=1.11输送机受料点与卸料点间的高差,当输送机设有卸料车时,应加上卸料车提升高度H/,H/值见表6空载运行功率系数,可根据托辊阻力系数ω/(见表1),按表2选取犁式卸料器及导料槽长度超过3m部分的附加功率,见表5传动滚筒轴功率——物料向上输送时工作条件槽型托辊阻力系数ω/0.030.04ω/0.0180.020.0250.030.0350.04k24.91×10-55.45×10-56.82×10-58.17×10-59.55×10-51.89×10-5δ/(o)1530456010015020002.82.11.81.61.551.51.461.71.41.31.251.251.21.2121.451.251.251.21.21.151.15201.31.21.151.151.151.131.13因素的情况下求出的。5350065080010001200P//KW0.3n0.4n0.5n1.0n1.522.550.08L0.08L0.09L0.10L0.115L0.240.240.270.30.34550065080010001200H//m1.71.81.962.122.372.422.52符号单位1#PKW8.6903080.797976k1.41表3物料水平运行功率系数k3表4附加功率系数Ln/m注:k3是在考虑有一个空段清扫器、一个头部清扫器及一个3m长的导料槽,并考虑物料加速阻力等犁式卸料器导料槽带宽B/mm表5槽长超过3m部分的附加功率犁式卸料器个数/n导料槽超过3m的长度/L注:表中n为犁式卸料器个数;L为导料槽超过3m的长度(m),即L等于导料槽总长减3米。带宽B/mm卸料车重型卸料车表6卸料车提升高度电动机功率:P=kPA/η意义电动机功率功率备用系数电动机功率的计算数据(物料向上输送时)PAKW5.5866260.718178η0.90.9对于光面传动滚筒η=0.88,对于胶面传动滚筒η=0.90。注:对于功率大于5.5KW的JO2型电动机k=1.4,其他电动机k=1.0;(物料向上输送时)电动机轴功率总传动系数单位数据1#2#3#4#5#6#m/s1.250.80.80.80.80.80.8t/h101111130m131.815188.420.631116m20.43.903.38.1354.53.70.0220.030.030.030.030.030.030.0001890.0001890.0001890.0001890.0001890.0001890.0001891.21.21.41.21.21.21.21111111KW0.270.270.270.270.270.270.27KW5.5866260.7181780.8795630.5246360.8954730.6040371.2033KW0.7979760.9772920.5829290.994970.6711521.3372.21.5传动滚筒轴功率对于L<80m的带式输送机,可根据以下公式进行简易计算:PA=(k1Lnv+k2LnQ±0.0273QH)k3k4+∑P/k1Lnv:输送带及托辊转动部分运转功率,KW;k2LnQ:物料水平提升功率,KW;0.0273QH:物料垂直提升功率,物料向下输送时取“+”,向下输送时取“-”,KW。300>3001.31.21.151.151.141.141.11.114000.18L0.5414002.623.022#3#4#5#6#7#8#0.9772920.5829290.994970.6711521.3371.7355521.227421111111k3表4附加功率系数Ln/m注:k3是在考虑有一个空段清扫器、一个头部清扫器及一个3m长的导料槽,并考虑物料加速阻力等表5槽长超过3m部分的附加功率注:表中n为犁式卸料器个数;L为导料槽超过3m的长度(m),即L等于导料槽总长减3米。表6卸料车提升高度0.8795630.5246360.8954730.6040371.20331.5619971.1046780.90.90.90.90.90.90.97#8#0.8130306.219.510.900.030.030.0001890.0001891.21.2110.270.271.5619971.1046781.7355521.22742
本文标题:皮带输送机出力和电动机功率计算软件
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