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揉碎玉米秸稈可壓縮性研究
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    摘要:

    揉碎玉米秸稈的可壓縮性對(duì)壓縮工藝的優(yōu)化、壓縮設(shè)備的研制、壓縮后產(chǎn)品的特性等均有重要影響。通過(guò)對(duì)揉碎后玉米秸稈進(jìn)行壓縮試驗(yàn),，研究了在不同初始密度下以不同速度壓縮時(shí),，不同含水率揉碎玉米秸稈不同個(gè)體形狀的可壓縮性,，并分析了不同壓縮條件下揉碎玉米秸稈體積模量與壓縮量,、壓縮密度之間的關(guān)系,，獲得了體積模量與壓縮密度關(guān)系的數(shù)學(xué)模型,。研究結(jié)果表明：揉碎玉米秸稈的可壓縮性受到喂入揉碎玉米秸稈含水率,、初始密度和壓縮速度的影響，且當(dāng)壓縮密度大于230kg/m3時(shí),，隨壓縮密度的增加,，可壓縮性明顯降低。

    Abstract:

    The compressibility of maize straw has great effect on the compressing processing, properties of products compressed, optimizing processing technology and designing compressing equipments of maize straw. The compressibility of maize straw rubbed was experimentally studied under certain initial density, different forms and different moisture contents with different compressing velocities. The relation curves of bulk modulus against compressing displacement and compressing density were analyzed by means of regressive analysis. Finally, the regressive mathematical model of compressibility was obtained. The results show that moisture content, initial densities and compressing velocities have obvious effects on compressibility of maize straw rubbed. Especially, when compressing density is larger than 230kg/m3, the compressibility of maize straw rubbed reduces significantly with increasing of compressing density.

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范林,王春光,王洪波,趙桂芝,索海霞.揉碎玉米秸稈可壓縮性研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(11):76-80.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(11):76-80.

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