平房仓玉米_内结露_调质增湿试验.pdf

粮食储藏 GrainDistributionTechnology 平房仓玉米“内结露”调质增湿试验 史钢强 （中央储备粮哈尔滨直属库，哈尔滨 150069） 摘 要：东北地区储粮粮堆由于气候原因存在一个巨大的“冷心”，冷心的应用主要方式为膜下环流均 温控制和缓式通风上调冷心控粮温，这两种方式都是利用冷资源进行的粮温控制。而目前的粮堆增湿方式 主要为湿膜机增湿和各种调质机增湿，利用“冷心”增湿还没有成功的案例。利用冷心增湿，内结露现象 很严重，而且容易出现局部水分偏高现象，且违反机械通风操作规程1。但通过缓式通风的精确掌握和粮堆 增湿理论的精确控制，精细控制，大胆试验，事实证明冷心内结露增湿方式是可行的。试验将出仓前平均 水分13.5％提高到最高14.8％，平均水分14.1％，达到试验预期目的。试验仓出仓验证实际增量21.05t，效 益十分可观。更重要的是避免了资源浪费，为粮食安全和粮食水分这对矛盾体找到了一个在实践中切实可 行的平衡点，它的发展前景是广阔的，也必然会成为将来的一种常态储粮管理手段。 关键词：内结露；调质；增湿 Tempering and Humidifying Test about Condensation of the Maize in the Flat Warehouse ShiGangqiang （StateGrainReservesHaebinDepot,Haerbin150069，China） Abstract ：Thereisahuge “coldheart” inGrainstoragegrainpilesinnortheastChinaduetotheclimate. The main ways of the application of “cold heart” are mean temperature control by circulation under the membrane,andgraintemperaturecontrolbyslowventilationandraising “coldheart”.Theabovewaysare both temperature control with cold resources. At present, the grain heap humidifying method is mainly humidifyingbywetfilmmachineandvarioustemperingmachine.Thehumidifyingmethodbycoldhearthas notbeensuccessful.Innerdewingphenomenonofgrainpilesisveryseriousbycoldhearthumidifying,andits easytohaveaphenomenonthatlocalmoisturecontentofgrainsisveryhigh,andthereisaviolationofthe mechanical ventilation operation procedure 1. Through slow ventilation accurately, precise control and fine controlandboldtestofhumidifyingofgrainpiles,itisprovedfeasibletohumidifyingmethodbyinnerdewingof coldheart.Themoisturecontentofgrainsinthestorehouseisvariedfrom13.5%tothehighest14.8%,the averagemoisturecontentis14.1%.Thetestreachesthedesiredpurpose.Actualincrementis21.05tonsafterthe test, the benefit is very considerable. It is more important to avoid the waste and found a feasible point in practice for the food security and grain moi