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网带式花生烘干机的研制 总被引:3,自引:0,他引:3
介绍了网带式花生烘干机的结构,并以日处理30t花生为例,对烘干机的设计参数进行了分析计算。所研制的网带式烘干机在实际应用中效果理想,设计结构和参数符合生产工艺要求。 相似文献
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本文介绍了导热油烘干机的热能技术原理,实际应用情况证明,采用导热油烘干机新技术,可以大量节约人力,电力,煤耗等。 相似文献
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籽棉烘干机使用情况介绍江苏省兴化市轧花油脂二厂刘祥俊为适应新形势下棉花加工需要,1992年我厂购置一台MGZ型10吨脉冲──搁板式籽棉烘干机,经过一段时间的调试、改进,于1994年10月投入使用。现就该烘干机的安装、调试及使用情况介绍如下:一、烘干机... 相似文献
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着重介绍了角钢式平板烘干机在干燥工艺方面的优越性,其结构特点及制造技术关键,并与夹层式平板烘干机作了较详尽的比较。在结构上的改进值得注意。 相似文献
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本文分析了顺流烘干机的设计和几种操作因素对玉米种子发芽率的影响。正态分布死亡速率和顺流烘干机模型的模拟试验表明,当介质温度高达100℃时,仍能烘出高品质的种子。 相似文献
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介绍了模糊控制的特点以及在谷物烘干机温度控制系统中的应用.描述了如何将模糊控制算法应用于谷物烘干机温度控制系统,设计了该系统的智能模糊控制器.介绍了控制系统的硬件和软件结构,以及为提高整个系统的抗干扰性能所采取的相应措施. 相似文献
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Changes in the efficiency of fertiliser use in China 总被引:1,自引:0,他引:1
Jin J 《Journal of the science of food and agriculture》2012,92(5):1006-1009
Results of three nationwide fertiliser efficiency studies in recent history in China are reviewed. The results indicate that after a long history using organic recycling to maintain soil fertility in China, nitrogen (N) became the first yield-limiting nutrient in the first national fertiliser efficiency study in 1935-1940. With N fertilisation being used, phosphorus (P) and potassium (K) deficiencies were gradually revealed and developed in the following national fertiliser efficiency studies in 1958-1962 and 1981-1983. Research conducted through the International Plant Nutrition (IPNI) cooperative network in China in 2000-2006 indicates that agronomic efficiencies of N fertiliser (yield increase per kilogram from the application of 1 kg N) for rice, wheat and maize are 11.7 kg, 10.8 kg and 12.2 kg grain per kilogram of N, respectively, while crop recovery efficiency of N (percentage of N taken up by plant in total N applied) with rice, wheat and maize were 24.8%, 35.7% and 30.5%, respectively. Both agronomic efficiency and crop recovery efficiency of N are significantly lower than the average N use efficiency reported in international literature for other countries. Current agronomic efficiency of P and K are also discussed. Measures to improve fertiliser use in China are discussed. 相似文献
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为提高高弹力双层织物在ZAX-e型喷气织机上的织造效率,文章就造成织造效率低下的纬向停台、经向停台和操作工处理故障效率不高等主要原因进行了分析,并据此采取相应措施,达到了提高织造效率的目的. 相似文献
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Anatoliy G. Goncharuk 《Journal of Wine Research》2017,28(4):294-312
The paper is devoted to the evaluation and comparison of the efficiency of winemaking in Germany and Ukraine in order to find the key factors of efficiency of wine business in these countries. The models of data envelopment analysis (DEA), correlation and other tools of data analysis are used to analyse the efficiency of wineries in two countries. Returns to scale, scale efficiency, super-efficiency and some other indicators are examined. The study is based on the sample including 36 wineries of Germany and Ukraine. The hypothesis about a higher relative efficiency of winemaking in Germany in comparison with Ukrainian winemaking was confirmed analytically. Relatively a high average scale efficiency score indicates a good potential (above 30%) for efficiency growth due to the optimization of a scale of production and sales. Generally, winemaking in Germany and Ukraine has increasing returns to scale. It was found to be the most efficient combination of the size and legal form of business organization for wine business in Germany. 相似文献
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再谈异性纤维的在线检测和清除 总被引:1,自引:1,他引:0
叙述了如何提高异纤检出机的检出率和排除率问题,提出了几种解决方案,并认为开清棉工序的异纤检测机和络筒工序的带异纤检测功能的电子清纱器结合使用可有效提高异纤检测率和清除率。 相似文献
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在喷气织机的织造生产中,经纬纱故障停车是影响喷气织机织造效率的主要因素之一.通过对实际生产中喷气织机织造用纱线的质量测试分析,并没计多种不同纱线质量的经纬纱组合方法,进行织造对比试验,探讨纱线质量对细特高密织物喷气效率的影响,为提高喷气织机的织造效率,实现喷气织机的高效织造、产生更好的经济效益提供依据. 相似文献
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以柴油纯化为例,对重质油水体系进行了膜聚结油水分离工艺实验研究,考察了表观流速和初始含水量与分离效率的函数关系.结果表明:表观流速和分离效率成指数衰减关系,其曲线存在2个分离区域和1个拐点;初始含水量越大,分离效率越大;在较低的表观流速下,分离效率可达85%,在较高的表观流速下,该工艺仍有一定的分离效率. 相似文献
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文章论述了影响GA708型喷气织机效率的主要因素,并从原纱质量、织轴质量及织造工艺等方面阐述了提高喷气织机效率的途径和方法。 相似文献
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目前,空气过滤材料多存在过滤效率与过滤阻力不平衡的问题。为进一步提高其品质因子,以近年来国内外纳米纤维膜、熔喷过滤材料以及耐高温针刺过滤材料的相关研究为基础,阐述了驻极体过滤材料、微纳结构过滤材料以及梯度结构化和后整理方法提高空气过滤材料过滤效率的研究进展;分析和讨论了驻极体材料电荷储存能力的影响因素以及不同空气过滤材料的驻极类型;系统总结了微纳结构材料的制备方法,比较了梯度结构化和后整理等方式提高材料过滤效率的优缺点。认为空气过滤材料的驻极化与微纳结构化将会是研究热点,在今后的空气净化领域应用中具有极大的发展空间。 相似文献