盘式热风与红外联合干燥机设计与试验
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摘要
将热风干燥与红外干燥相结合,设计了一种盘式热风与红外联合干燥机及配套控制系统。应用在线称重技术和机器视觉技术,设计了自动称重系统和图像提取系统,可实现干燥过程中物料含水率与色泽的实时检测。以冬枣片(厚度为5mm)为物料,在风速2.5m/s、不同风温(55、65、75℃)干燥条件下进行性能试验,获得了实验条件下冬枣片干燥过程中含水率与色泽(L*、a*、b*、△Ε*)的实时变化曲线。
Combining hot air drying with infrared drying,a disc type hot air and infrared drying machine and its control system are designed. Using online weighing technology and machine vision technology,automatic weighing system and image extraction system are designed to realize the real-time detection of moisture content and color in drying process. In winter jujube slices( 5 mm thickness) as material in the wind 2. 5 m/s,different air temperature( 55 C,65 C and 75 C)performance test was carried out under dry conditions,the moisture content and the color of winter jujube slices drying process under the experimental conditions in( L*,a*,b*,the E*) real time curve.
Combining hot air drying with infrared drying,a disc type hot air and infrared drying machine and its control system are designed. Using online weighing technology and machine vision technology,automatic weighing system and image extraction system are designed to realize the real-time detection of moisture content and color in drying process. In winter jujube slices( 5 mm thickness) as material in the wind 2. 5 m/s,different air temperature( 55 C,65 C and 75 C)performance test was carried out under dry conditions,the moisture content and the color of winter jujube slices drying process under the experimental conditions in( L*,a*,b*,the E*) real time curve.
引文
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[2]代建武,肖红伟,谢龙,等.倾斜料盘式气体射流冲击干燥机设计与试验[J].农业机械学报,2015,46(7):238-244.
[3]万江静,郑霞,高振江,等.红枣片远红外辐射干燥的干燥特性及V_C变化[J].食品工业科技,2016(8):110-115.
[4]郑霞,万江静,高振江,等.红外干燥技术在果蔬加工中的研究现状与展望[J].江苏农业科学,2015(10):1-6.
[5]郑霞,肖红伟,王丽红,等.红外联合气体射流冲击方法缩短哈密瓜片的干燥时间[J].农业工程学报,2014(1):262-269.
[6]张茜,肖红伟,代建武,等.哈密瓜片气体射流冲击干燥特性和干燥模型[J].农业工程学报,2011(S1):382-388.
[7]邱兵涛.魔芋片干燥试验研究及模型建立[D].重庆:西南大学,2013.
[8]崔满满.干燥方法对甜瓜片干燥特性及品质影响的研究[D].乌鲁木齐:新疆农业大学,2012.
[9]白圣贺,杨莹,史增录,等.基于红外线的果品干燥机称重系统的设计[J].农业科技与装备,2016(10):18-20.
[10]刘泽桂,李迪,王世勇,等.图像处理应用组态开发系统的设计与实现[J].计算机测量与控制,2016,24(2):307-310.
[11]孙传祝,王相友.红外玉米穗干燥机设计[J].农机化研究,2014,36(3):137-140.
[12]苏全卫,周航.连续盘式热风干燥器干燥盘结构设计与传热分析[J].食品与机械,2017,33(1):97-100.
[13]贺华波.旋转圆盘式干燥机的设计[J].工程设计学报,2003,10(6):348-351.