德国维博尔(VIBRA SCHULTHEIS )振动和工艺技术有限公司成立于1948年。是国际知名的振动输送设备制造商和供应商。拥有雄厚的技术实力、先进的制造设备和广泛的客户群。公司主要产品系列有:振动物送机、振动筛、振动冷却螺旋输送机《或提升机)、振动流化床干燥机,冷却机、振动电机、振动台和IBC卸料站等。自公司成立以来我们一直专注于振动技术的开发和振动输送设备的制造。在六十多年的发展历程中。维博尔以出色的技术革新在业界班得了非常良好的声誉,并在世界范围内成为众多化工、塑料、医药、食品等知名企业的长期合作伙伴。本期“面对面。栏目,我们特别采访了德国维博尔《VIBRA SCHULTHEIS)振动和工艺技术有限公司干燥方面的专家Michael Bathon先生,让他来为我们解答除湿干燥过程中遇到的难题,并感谢德国维博尔振动和工艺技术有限公司上海代表处首席代表夏克俊先生为我们做的专业翻译。
记者:您是如何定义一款好的除湿干燥设备?如何对物料进行干燥才能达到最优的效果?
Michael Bathon:Definition and design for be in quality of drying equipment chosen by specified process construction data。 In relation to our own experience we will make a first rough design calculation thereafter we will do some feather drying test with a sample of the product at a relevant pilot dryer to get more exact design data and properties of product while fluidized drying process。
夏克俊先生:定义和设计高品质的除湿和干燥设备取决于所选择的具体的工艺和制造参教。为了达到最优的干燥效果,按照我们常规的程序,首先根据理论和我们大量的工程经验进行粗略的设计和计算,然后在我们工厂试验车间的除湿干燥设备上进行样品侧试。在流化干燥工艺工程中取得更为准确的设计数据和产品属性,进而完善我们的工艺设计参数和设备制造参数。无数的工程案例证明,我公司设计和制造的干燥设备在设计上和使用性能上都能达到让客户满意的效果。
记者:请您针对传统除湿干燥设备的性能特点。谈谈目前市场对除湿干燥设备技术性能的需求。
Michael Bathon: As a main aspect design and performance of our drying equipment will fulfill required process data incl。 a wide range of possible variation to control the data of the product。 Further an optimum heat transfer is achieved in vibratory fluidized bed dryer/coolers。 The drying or cooling medium evenly penetrates the product bed which is being conveyed across the perforated sieve。 The large heat exchange area in the fluidized bed provides a rapid heat transfer between solid particles and gas。 Our drying equipment also will be designed in accordance to easiest handling while cleaning purposes adapted to operators installation location。
夏克俊先生:传统的除湿干燥设备功能比较单一,能源的综合利用效能也不高。现代的企业对干燥系统的综合功能要求越来越高。对环保运行和人性化操作也越来越重视。我公司长期以来紧眼市场的需求,与客户密切合作开发出多欲性能优越的产品。
设计和性能是干燥设备的核心部分。我们在设计阶段会考虑一系列的而要执行的工艺参数。包括可能影响产品参数控例的各种变量,其次就是通过振动流化床技术进一步优化热传递效果:
产品在流化板上被输送的同时,干燥或冷却媒介均匀的透过产品层。流化床的设计为固体颗粒和气体之间的热传递提供了更大的交换空间。此外,我公司设计和生产的干燥设备还有一个显著的特征就是方便操作、易于清洁。设备安装和布局非常人性化。
记者:对于除湿干燥系统来说,分子筛水含量的加工直接影响着物料加工效果,贵公司的除湿干燥系统在检测控制含水量,进行高效加工上有何独特优势?
Michael Bathon:Dehumidifying equipment (e.g.filled by reactive material ofmolecular sieve particles) will be integrated in air supply equipment of our drying systems if process data should get a very low final moisture。 In case of operating with a dehumidifier our customer will get the advantage to handle his product under constant and even well process conditions。 This result in best and 22915 stant production for the drying process。
夏克俊先生:如果工艺要求最终产品必须达到非常低的含水率。除湿设备(如内部填充分子筛颗粒的反应物)将与我们干燥系统的气体供应单元集成在一起。在配备除湿设备的情况下。我们的设备能够帮助客户在处理产品时实现恒定和平稳的工艺条件。进而达到最佳和恒定的产品所需要的干燥工艺。
记者:结晶设备在物料干燥除湿环节中非常重要。贵公司的结晶设备与整体的除湿干燥系统之间如何实现准确检测,做到高效高质加工?
Michael Bathon: Back to our great experiences in crystallization and drying processes we are able to design and to manufacture it with special construction
to perform an optimized process control。 Drying systems like f uidized bed provided with best possible customized air handling equipment will ensure a high accuracy of product flow and quality。
夏克俊先生:基于我们在结晶和干燥工艺上长期和大量的工程技术经验累积,我们能够设计和生产多种特殊的结构形式以达到最优的工艺控制效果。干燥系统。如流化床配备个性化设计的空气处理设备将保证更准确地产品流和更优质的产品。
记者:贵公司的除湿干燥设备是采用哪种方式对物料进行干燥的?更适用于哪种物料的干燥?
Michael Bathon:For many applications in China and worldwide plastic industries we recommend to use our Vibratory Fluidbed system as a most efficient drying or cooling system。 Our systems like Vibratory Screen Dryer series VSK, Vibratory Fluidbcd Dryer/ Cooler series VF or dVW, Natural frequency Fluidbed dryers series VR as well as our Static Fluidbed dryer series SF will provide a lot of possibilities and also gives the opportunity to choose for best economical way of drying/cooling/ crystaWang/de-dusting the various kind of plastic products of our customer。
As a suitable addition to above described type of machines also our Trough, Tube and Spiral Conveyors are equipped for this purpose either with heat exchangers for cooling water, steam m t ermal ail or with other heat transfer devices。 The beat exchange principle is as follows: Heat is transferred from the product bed via the contact surface of the heat exchanger bottom to the heat transfer medium。 Over and above that all our Vibrating Conveyors facilitate gentle,dust-free, hygienic and gaslight handling of the bulk material。 The contact time,which is important to the heat transfer,can be adapted to individual operating requirements through careful selection of the angle of throw, frequency, vibration amplitude and inclination。 In many respects, spiral conveyors are similar to horizontal trough conveyors。 The great advantage of spiral conveyors, however, is that they permit a large exchange surface to be achieved over a small floor space,with a long path and a correspondingly long residence time。 At the end and to safe high quality of product we often offer our Vibratory Separators Type SRK, which are specially designed for operating with plastic pellets。 SRI{ screening machines have a slightly inclined screen and motor vibrators mounted laterally at a small angle of throw。 Screening can therefore take place with a very low vertical acceleration, ensuring that over length particles contained in the feed are conveyed flat across to the screen area without the risk of uprighting。 The motor vibrators can be adjusted through a given angle for optimum adaptation to the feed rate。
Finally the screening efficiency depends on the ratio of hole width versus particle size。
夏克俊先生:根据找们的除湿干燥系统在中国和世界范围内物料行业的众多应用。我们推荐振动流化床系统作为最有效的干燥或冷却系统。我们的系统如振动筛分干燥机系列VSK、振动流化床干燥机/冷却机系列VF或DVW、共振流化床干燥机系列VR,以及静态流化床系列SF提供了多种选择;同时也为我们的广大客户在多种物料产品处理工艺—干燥/冷却/结晶/除尘—要求上有更为经济的选择。
除了流化床干燥机。我们还有非常适合除湿干燥功能的其他设备,如指式、管式和螺旋输送机,采用冷却水、蒸汽或热煤油等作为热交换介质。或其他的热交换装置。其热交换原理是通过产品床与热交换器底部表面接触,将产品床中的热量传递给热交换媒介。此外,我公司生产的所有振动输送机处理物料都具有温和、无尘、卫生和气密性特征。接触时间是热交换的重要因素。可以通过精心选择抛料角、频率、振动幅度和倾斜角度等参数满足具体的工艺操作要求。
在很多方面螺旋输送机同水平式输送机相似。螺旋输送机的最大特点就是占用很小的楼面面积,达到最大的热交换面积。为了达到更安全的高品质产品。可以在螺旋输送机上下游安装我们的SRK系列振动筛,这是一款专为塑料颗粒处理而设计的特殊设备。SRK振动筛筛网轻度倾斜,振动电机安装在两侧,抛料角度较小;所以只要很低的垂直加速度就能筛分,保证了进料中所含的较长颗粒能够平躺着滑过输送区域而不会出现被竖起来的风险。通过调整振动电机角度优化并适应喂料速度。最终的筛分效率还要取决于塑料粒径和筛孔宽度的比率。
记者:近期贵公司推出了哪些新的除湿干燥设备。并简单介绍该新产品的特点?
Michael Bathon:Next time we will take a lot of our effort to optimize our new system for drying/cooling/crystallizing/powdering of bulk materials like plastic pellets or similar products。
In opposite to classical/traditional Fluidbed systems our new system will operate very effective with much lower quantity of air supply and exhaust air flow rate。 Further it will be able to operate with a high accuracy, means a very tight deviation of the residence time by using our special developed conveying mechanism, so at the end all single particles of any bulk material will remain to nearly the same time inside of this new developed system。
夏克俊先生:在近年来,我公司在散料《如塑料颗粒或类似产品)干燥/冷却/结晶,微粉化等新系统优化方面做出巨大的努力。与传统的流化床系统相比,我们的新系统运行更为高效,空气需求最和废气排出最都大为减少。此外。该系统配备了我们开发的特殊输送系统。运行更为精确。反应时间偏差极小。因此在新系统中处理过的所有散料,其每一个颗粒的反应时间几乎都是相同的。