共查询到20条相似文献，搜索用时 62 毫秒
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偏高水分玉米就仓干燥节能通风试验 总被引：1，自引：0，他引：1
在基建房式仓对当年收获入库的偏高水分玉米(入库平均水分15%),利用加速式节能轴流风机和地上笼通风系统进行实仓降水通风处理,试验结果表明,从入仓玉米装满一组地上通风笼开始依次通风,进行均匀降水,经过475 h的压入式通风作业,整仓玉米平均水分降至14.3%,降水通风的单位能耗是1.18 k Wh/(1%·t),实现了低温储藏. 相似文献
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在冬春季节利用机械通风系统,布置合理的通风网络,对新收获的超高水分稻谷,采取2次通风的方法进行降水试验,收到了良好的效果.在仓外对堆高3 m左右、水分17.0%～17.8%的晚粳稻谷,经过120 h有效通风,将稻谷的水分降到15.2%～15.8%（平均下降2%）.然后将稻谷转入仓内,经过140 h的有效通风,将水分降到14.5%～15.0%（平均下降0.7%）,使收购入库的高水分晚粳稻谷达到安全储存的目的,节省了高水分晚粳稻谷进行整晒或烘干的费用,提高了企业效益. 相似文献
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采用机械通风法,将试验仓型分成东南、东北、西南、西北四个区域,研究两种仓型对高水分稻谷通风降水的效果。结果表明:钢板仓降水能力优于浅圆仓。通风一个月后,钢板仓稻谷平均水分由16.5%降至14.9%;浅圆仓稻谷平均水分由15.9%降至15.5%。四个区域中,两种仓型东部两区的降水效果均好于西部两区。 相似文献
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房强 《粮油仓储科技通讯》2014,(2):32-33,42
日照粮食储备库根据所处地理位置和沿海气候特点,在2013年3月至2013年5月对高大平房仓10号仓储存的高水分玉米进行了就仓干燥通风降水试验,取得了较好的试验效果。试验表明,在高水分玉米入仓前合理布置机械通风风道网,利用大功率离心风机和轴流风机进行机械干燥通风降水,不仅可以降低储粮含水量,有效抑制虫霉孳生,还能减轻劳动强度,节约人工翻倒作业和烘干晾晒费用,保持了较好的储粮品质。 相似文献
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高大平房仓中包装储存的高水分小麦，在没有地上笼通风设施的情况下，利用离心风机，辅以轴流风机，进行机械通风和自然通风降水，结果表明：第一阶段利用秋冬季节干燥空气进行机械通风降温降水效果明显，第二阶段的降水确保了小麦的安全度夏，此后进行保湿通风减少水分损失，可提高仓储经济效益。 相似文献
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本文通过对几种测定玉米水分方法的比较，将微波干燥测水技术用于单个或小批量玉米水分测定中，所得测定结果符合国标要求。 相似文献
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Generally,a second order spring-damper system is used to represent the model ofweighing sensor in checkweigher. It only represents one part of checkweigher.In this paper,accord-ing to the relationships of individual parts of checkweigher and main disturbance source,a model isproposed for whole checkweigher.It is proved by simulatlon that this model is in a good approxima-tion. 相似文献
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The minimum sizes of specimens that can get effective K_(10) values by 3-point bending, 4-point bending and CT methods are derived on the basis of their notch sensitivity laws and size effect equation of concrete. The results show that the minimum heights of 3-point bending and 4-point bending specimens are very similar to those from Modeer's results, and the minimum height of CT specimen increases as the relative crack length increases. 相似文献
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用异丙醇代替乙醚—乙醇混合溶剂测定植物油脂酸价的研究 总被引：3，自引：0，他引：3
用3种不同溶剂测定植物油脂的酸价,发现用异丙醇作溶剂所测结果与GB5530－85所规定的溶剂测得值非常接近。而异丙醇具有无毒性、安全性高等优点。建议用来取代乙醚—乙醇混合溶剂测定油脂酸价。 相似文献
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Xian Wu Dong Dawei Luo Dali 《保鲜与加工》1989,(1):45-50
The instantaneous center of the cross-spring pivot is studied in this paper. It is also pointed out in this paper that three different kinds of center(the static geometric center the moving geometric center and the instan-tanaous canter), exist when the cross-spring pivot is deflected. Their relationship is calculated, the variation character of the moving geometric center almost condcides with the curve of S.Hildebrand's experiments. 相似文献
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Qiou Xiande Zhuang Qiancheng Wu Gang Xiao Changfu 《保鲜与加工》1992,(3):134-140
The problems that the bump of coal and methame in the mine is contraled by the
stress of longwall and that the coal and methane bump in the mine is affected by the physical properties of the coal are analysed and discussed through some specific bump cases. It is shown that the compressive stress, the content of the methane of the coal, and the bump of coal and methane are directly affected by the content of the ash and the volatile of the coal. 相似文献
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This paper presents the general expressions of computer which include(1) calculation of the coefficient of normal equations;(2) calculation of the reduced coefficient;(3) calculation of[PVV];(4) calculation of the cor-relate;(5) calculation of the weight reciprocal(1/P_F)of the function of adju-sted value.Each calculation contains corresponding program of calculation.As a program block,it may be quoted at any time in the course of surveying computation. 相似文献