饲料生产中盘式连续干燥器的应用

１盘式连续干燥器的结构和工作原理盘式连续干燥器是一种高效的传导型干燥设备,适用于饲料及农副产品加工等行业的干燥作业。盘式连续干燥器由干燥盘、耙臂、装在耙臂上的若干耙叶、主轴、转动装置、外壳等组成,中空的干燥盘内通入加热介质。干燥盘分为大盘和小盘两种,在干燥器内水平层式布置,干燥盘静止不动,物料在干燥盘面上由耙叶输送、翻动,呈阿基米德螺旋线轨迹运动,在运动过程中被干燥盘加热,进行传热传质,完成干燥作业。根据被干燥物料的产量、性质、初始及最终含湿量,确定干燥盘层数(干燥面积)。盘式干燥器立式工作,湿物料由顶部的…     

DHG—1型电热蜂花粉干燥器的研制及使用

近年来,许多养蜂者都不同规模地生产了蜂花粉,但由于缺乏适当的蜂花粉干燥器,蜂花粉未能及时干燥而霉变损失,或因干燥处理不当,蜂花粉的营养成分受到严重破坏,影响产品质量。为解决花粉干燥设备短缺这个问题,我们参考了国外蜂花粉干燥设备及技术,研制出DHG—1电热蜂花粉     

小型气流干燥器供热系统的改进

适用于山区乡镇企业的小型气流干燥器是一种新型供热系统。该系统以热风炉为热源,具有较高热效率、投资费用低、维修简单和操作方便等特点。     

Effect of variety and drying method on the nutritive value of corn for growing pigs

Background：This experiment was conducted to determine the nutritive value of corn from the north of China for growing pigs.The experiment examined corn variety（LS1,LS2,LS3 and LS4）grown in one location,drying method（sun dried and artificially dried）and different drying temperatures.Corn harvested at 20-25%moisture was dried to about 12%moisture by sun drying and artificially drying at 80,100,or 120℃ in a fluidized bed dryer.Ninety-six barrows（average BW of 33.4 ± 2.7 kg）were housed in individual metabolism crates to facilitate separate collection of feces and urine.A five-day collection period followed a seven-day diet acclimation period.Results：The results indicated that variety significantly influenced（P〈0.01）the 1,000 kernel weight of corn but not the bulk weight.Variety also influenced the available energy content（digestible energy of dry matter,P〈0.01;metabolisable energy of dry matter,P〈0.01）and digestibility of organic matter（P〈0.01）,as well as dry matter（P〈0.01）and gross energy（GE）content（P〈0.02）.The drying method of corn significantly influenced the 1,000 kernel weight（P〈0.01）,bulk weight（P〈0.01）and digestibility of ether extract（EE）（P〈0.01）.No effect of drying temperature on the digestibility of organic matter,dry matter（DM）,crude protein（CP）,neutral detergent fiber（NDF）,acid detergent fiber（ADF）and gross energy was observed,but gelatinization（P〈0.05）and test weight（P〈0.01）decreased with an increase in temperature.Conclusions：Variety has a significant impact on the nutritive value of corn for growing pigs,and greater attention needs to be paid to these influences in the assignment of the nutritive value of corn given to growing pigs.     

标准化肉鸡生产技术讲座(廿二)

(3)低温干燥处理将鸡粪置于装有机械搅拌和气体蒸发的干燥器中,在70℃~105℃的温度条件下,经10~12小时烘干,含水率达到13%左右,后经粉碎、过筛制成精制有机肥。另外,根据土壤成分和作用的营养需要量,还可将干燥后的鸡粪按一定比例,与无机矿物质混合,制成有机-无机混合专用肥。     

滤袋法快速测定饲料中粗脂肪和总脂肪

<正>脂肪含量高低是衡量饲料质量和营养价值高低的重要指标之一,因此脂肪测定早已成为饲料常规分析项目。目前饲料中脂肪测定多依据《饲料中粗脂     

人造板甲醛释放量检测方法的影响因素

随着国民经济的快速发展,人造板在各行各业,如畜牧生产中尤其是孵化设备等中的用量不断增加,使得用户对人造板的甲醛释放量越来越关注。特别是近年来国家把人造板列为国家重点整治的10类产品之后,国家加大了对人造板监督抽查的力度,