散料干燥系统是指采用性能卓越的散料搅拌机和散料烘干机,在几秒钟内实现物料的均匀搅拌。机械流态化操作确保所有的粒子都是由干燥介质包围(冷/暖/热空气,惰性气体等)和能量的有效输送,使得水分得以提取从而实现散料干燥的一种系统。
可干燥的散料包括:粉末,散装材料,滤饼状物,微颗粒和液体。
凯睿达散料干燥系统,构建于卓越组件和高端技术,布局合理,工艺可靠,由散料混和器,加热器(电,蒸汽或燃烧),冷却器(冷凝和空气冷却),热交换器,离心式风机和2步过滤系统组成。主过滤器进行连续清理,次过滤器收集细小颗粒,同时采用热泵来提升总热效率。散料干燥系统对产品实行温和干燥,以实现干燥的最佳经济效益。加热的空气吹入搅拌机和跟湿润的散料混合。在这热交换过程中,水分会从散料中蒸发出来。潮湿的空气在卷入风扇之前,先通过过滤器。之后空气通过冷却器进行冷凝,然后再加热。干燥非常湿润的产品时,通过先首先混入干燥的产品以保证流化和维持干燥速率。散料干燥系统可以是封闭也可以是开放的系统。该系统通常配备着一批烘干机,多批次的进行干燥。对于特殊应用,烘干机可以连续工作,散料从气旋或过滤系统产生的排气中分离。
均匀干燥的表现:
无局部过热
无局部干燥
温和干燥
在低温情况下进行干燥
产品温度和排气温度间恰当的关联性
集成的混合技术,总是能确保批次散料均匀干燥。
干燥容量:
高导热能力
可以操作接近产品的最高温度,提高干燥效率
持续和可控制的供气
保持空气的新鲜
可选择使用加热泵以提升总热效
批量或连续式干燥
接近绝对干燥。
惰性气体干燥的运用:
对于特殊散料提供惰性气体作为干燥系统的干燥介质。
优点是:
防止产品的氧化
可干燥溶剂型的产品
降低了爆炸的可能性
闭环减小惰性气体消耗量
闭环
不会对周边环境产生异味
持久干燥条件
不会逸出气体或尘埃
实现水蒸气的冷凝
通过回收以节能
惰性气体干燥作为一种选择
开放式系统作为一种选择
控制系统:
可定制的控制系统
温度监控,连同均匀混料避免变化
容易为批量处理设定中止参数
自动避免散料溢出及过度干燥
过滤器的清洁和监测确保无粉尘溢出
可以自动化操作
Product: DryingandDehumidifying System
Product category: Material Processing System
Product introduction:
Drying and dehumidifying system
The KRD dryer is a modification ofthewell-known KRD Bulk mixer, where homogeneous mixing is achievedina few seconds. The mechanical fluidization ensures thatallparticles are surrounded by drying medium (cold/warm/hot air,inertgas etc.) and an effective transmission of energy occurs.Moistureis thereby extracted from the product.
Drying materials: powders, bulkMaterials,filter cakes, Granules and liquids
The KRD drying technology is built onthewell-known components and principles, which ensure a wellarrangedand reliable process. It consists of a modified KRD mixer,a heater(electric, steam or combustion), a cooler (for condensationandcooling of air), a heat exchanger, a centrifugal fan and a2-stepfilter system. The primary filter for continuous cleaning ,and thesecondary filter for collection of fine particles. Heat pumpcanalso be offered to increase the total thermal efficiency. TheKRDBulk Drying system has been especially developed to dryproductsvery gently and to achieve the best possible dryingeconomy.
Heated air is blown into the mixerandmixed with moist product. During this heat exchange, themoisturewill evaporate from the product. Moist air passes throughthefilter before it is drawn into the fan. The air is thereafterblownthrough the cooler for condensation before it is reheated.Whendrying very moist products, the wet product is mixed withdryproducts first to ensure that the fluidization and the highdryingrate are maintained.
Today KRD offers the drying system asaclosed or open system. The system usually operates with abatchdryer, producing multiple batches. For special applicationsthedryer can operate continuously where product is separated fromtheexhaust air in a cyclone or a filter system.
Homogeneous drying: No local overheating,Nolocal over drying, Gentle drying, Low drying temperaturepossible,Good correlation between product temperature andexhausttemperature. The integrated mixing technology always ensuresahomogeneous batch
Capacity: High thermal capacity, Canoperateclose to the products maximum temperature, increasing thedryingefficiency, Constant and controlled air supply, No change offreshair, Increased total thermal efficiency with the optional useof aheat pump, Batch or continuous drying, Possible drying toabsolutedryness.
Inert gas drying: For specialapplicationsKRD offers the drying system with inert gas as adryingmedium.
Advantages: Prevents oxidation of theproduct,Drying of solvent based products, Reduces the possibilityofexplosion, Closed loop reduces inert gas consumption
Closed loop: No odor to the environment,Constantdrying conditions, No effluent gases or dust, Condensationof watervapor, Energy saving due to recuperation of heat.
Inert gas drying as an option, Open system as an option
Control system: Customized controlsystem,Temperature monitoring, together with homogeny mixtureavoidsvariations, Easy definition of stop parameters for batchprocess,Overfilling and over drying are automatically avoided,Filtercleaning and monitoring give no effluent dust, Automaticoperationpossible