圆盘翻刮式干燥机Repeatedly scraping tray drier 盘式干燥机

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埃弗顿吧介绍

一、工作原理及应用范围介绍   Introduction of Working Principle and Scope of Application


湿物料自加料器连续地加到上部第一层干燥盘上,带有耙叶的耙臂作回转运动使耙叶连续地翻抄物料。物料沿指定螺旋线流过干燥盘表面进行传热传质,在小干燥盘上的物料被移送到外缘,并在外缘落到下方的大干燥盘外缘,在大干盘上物料向里移动并从中间落料口落如下一层小干燥盘内缘。大小干燥盘上下交替排列,物料得以连续地流过整个干燥器。中空的干燥盘内通入加热介质,加热介质可以是蒸汽、热水、导热油和高温熔盐等,加热介质由干燥盘的一端进入,从另一端导出。已干物料从最后一层干燥盘落到壳体的底层,最后被耙叶移送到出料口排出。湿份从物料中溢出,由设在顶盖上的排湿口排出(真空型盘式干燥器的湿气由设在顶盖上的真空泵口排出)。

盘式干燥机是立式连续的以热传导为主的干燥设备。广泛应用于化工、染料、农药、塑料、医药及食品等领域,于干燥技术中有其广阔的发展前景。如下行业埃弗顿吧:

1.   有机化工


2.   无机化工


3.   医药、食品


4.   饲料、 肥料



    Wet materials self-charger continuously charges materials to the first layer of drying tray on the top of the drier, and the rabble arm with shovel blade conducts a rotary motion to make the rabble arm shovel the materials continuously. The materials flow through the surface of drying tray along the specified spiral line to conduct heat and mass transfer, and the materials on the small drying tray are transferred to its outer edge and fall on the outer edge of the large drying tray, the materials on the large drying tray move inward and fall on the inner edge of next layer of small drying tray from the middle blanking mouth. Large and small drying trays are arranged up and down alternately, so that the materials can continuously flow through the whole drier. The hollow drying tray is added with heating media such as steam, hot water, conduction oil and high-temperature molten salt. The heating medium enters from one end of drying tray and derived from the other end. The materials which have been dried fall on the bottom layer of shell from the last layer of drying tray, and finally moved to the outlet by shovel blade for discharging. The moisture overflows from the materials and discharged from the moisture discharge outlet on the head cover (the moisture of vacuum type tray drier is discharged from the vacuum pump outlet on the head cover).

Tray drier is a continuous vertical and heat conduction-oriented drying unit, which is widely used in the fields such as chemical industry, dye, pesticide, plastics, medicine and food. Drying technology has its wide development prospects. It can be used for drying the following products:

1. Organic chemical industry

 

2.Inorganic chemical industry

   

3.Medicine and food

   

4. Feed and fertilizer

  

二、特点Characteristics


1.连续运行,热效率高。盘式连续干燥机以传导传热方式进行干燥,干燥过程中干燥器内只通入极少量(或不通入)空气,其尾气携带量很少,故其热效率可达65%以上。

2.动力消耗低、噪音小。由于干燥过程中料层很薄,主轴转速低,物料传送系统所需的功率小,电耗很少,其全套干燥装置动力消耗仅是对流方式传热装置动力消耗的1/5~1/7,且噪音很小。

3.物料受热均匀,干燥时间短。由于干燥过程中物料在干燥盘中沿阿基米德螺旋线运动轨迹翻滚前进,物料所走路程为干燥盘半径的5倍,且逐层下落,因此物料接触加热盘面时间基本相同,受热很均匀。

4.物料损失小、环境保护好。

5.设备密闭连续操作,工人劳动强度低。

1.Continuous operation and high thermal efficiency. Continuous tray drying machine conducts drying by the means of conduction heat transfer. In the process of drying, the drier is injected with a small amount of air (or with no air),  it has very little end gas carrying volume, thus its thermal efficiency can reach over 65%.

2.Low power consumption and small noise. Due to very thin bed of materials, low spindle speed, less power required for materials transfer system and less power consumption in the process of drying, the power consumption of the full set of drying unit is 1/5~1/7 of that of convective heat transfer unit and it has very small noise.

3.Materials evenly heated and short drying time. In the processing of drying, the materials roll forward in the drying tray along the Archimedes spiral motion curve and the journey passed by the materials is 5 times of radius of the drying tray, and then the materials fall layer by layer, therefore, the time that the materials contact with the heating plate surface is basically identical and the materials are heated very evenly.

4.Small material loss and good environmental protection.

5.Closed continuous operation of equipment and low labor intensity of worker.


三、工艺流程图Process flow diagram

盘式干燥机


四、技术参数(下表中数值仅供选型时参考)

Technical parameters (the values in the table below are for reference in type selection only)

盘式干燥机


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