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公开(公告)号：US06317997B1
公开(公告)日：2001-11-20
申请号：US09691148
申请日：2000-10-19
IPC分类号： F26B1330
CPC分类号： F26B5/04 , F26B5/048 , F26B2210/16
摘要： A vacuum drying system wherein the drying chamber is provided with at least two vacuum draw headers positioned one above and one below a median plane through a load being dried to draw gases substantially symmetrically from opposite sides of the load as it is being dried. Preferably the drying system is a dielectric drying system and headers are positioned on opposite sides of the load.
摘要翻译： 一种真空干燥系统，其中所述干燥室设置有至少两个真空抽吸集管，所述至少两个真空抽吸集管通过待干燥的负载位于中间平面的上方和下方，从而在负载被干燥时从负载的相对侧基本上对称地抽吸气体。 优选地，干燥系统是介电干燥系统，并且集管位于负载的相对侧上。
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2.发明授权
公开(公告)号：US6124584A
公开(公告)日：2000-09-26
申请号：US335844
申请日：1999-06-18
CPC分类号： H05B6/50 , F26B25/22 , F26B3/347 , F26B5/048 , F26B2210/16
摘要： A method of determining the moisture content of charge of wood having a moisture content below fiber saturation and being subjected to a Radio Frequency dielectric heating process to the degree required to control the process (e.g., terminate drying) by measuring the wood product package dimensions and monitoring the RF power KW and RF voltage KV being applied to the charge at the electrode(s) and further controlling (i.e., terminating) the process when the KW and KV being applied based on a pre-selected function indicates that the charge has reached a preselected moisture content.
摘要翻译： 一种确定水分含量低于纤维饱和度的木材的含水量的方法，并且通过测量木材产品包装尺寸和进行无线电频率介质加热过程达到控制过程所需的程度（例如，终止干燥） 监视施加到电极上的电荷的RF功率KW和RF电压KV，并且当基于预先选择的功能施加KW和KV时进一步控制（即，终止）该过程，表示电荷已达到 预选的含水量。
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公开(公告)号：US6080978A
公开(公告)日：2000-06-27
申请号：US161396
申请日：1998-09-28
申请人： Glenn Craig Blaker , Terry Albert Enegren , Yiu Kwan Ho , Gary Kenneth Kooznetsoff , Robert Lewis Zwick
发明人： Glenn Craig Blaker , Terry Albert Enegren , Yiu Kwan Ho , Gary Kenneth Kooznetsoff , Robert Lewis Zwick
摘要： A dielectric drying kiln material handling system includes a bottom electrode incorporating a conveyor system for moving material along said bottom electrode for moving material on and off of the electrode. Conveyors are built into the electrode in a manner so that the electrode surface of the bottom electrode, i.e. the surface contacting material to be dried is configured with gaps having dimensions so that the gaps do not significantly affect the uniformity of the power distribution over the electrode surface. Various types of conveyors may be used such as slat conveyors, roller conveyors, belt conveyors and the like provided the gaps, i.e. between the slats receiving the rollers or for accommodating the return rollers belt type conveyor are configured with dimensions so that the gaps do not significantly affect the uniformity of electromagnetic field and power distribution over the effective surface of the bottom electrode. The preferred arrangement permits computer control and includes an infeed conveyor, a electrode conveyor and an outfeed conveyor arranged in series so that material to be dried is positioned on the infeed conveyor and fed into the kiln with the feed forward of the infeed conveyor correlated with that of the electrode conveyor to deliver the material to be dried into position onto the electrode conveyor and then after drying, electrode conveyor is correlated with the outfeed conveyor to move the material from the electrode conveyor onto the outfeed conveyor. Preferably, the infeed conveyor delivers material into the kiln at the same time as the outfeed conveyor is receiving material being expelled from the kiln.
摘要翻译： 介电干燥窑材料处理系统包括底部电极，其包括用于沿着所述底部电极移动材料的输送系统，用于将电极移动和移出电极。 输送机以这样的方式内置在电极中，使得底部电极的电极表面，即待干燥的表面接触材料构造成具有尺寸的间隙，使得间隙不会显着影响电极上的功率分布的均匀性 表面。 可以使用各种类型的输送机，例如板条输送机，辊式输送机，带式输送机等，提供间隙，即在接收辊子的板条之间或用于容纳回转辊带式输送机的尺寸使得间隙不 显着影响电极的均匀性和功率分布在底部电极的有效表面上。 优选的布置允许计算机控制，并且包括进料输送机，电极输送机和输出输送机，其串联布置，使得要干燥的材料定位在进料输送机上并且进料到窑炉中，进料输送机的前馈与该进料输送机相关联 的电极输送器将待干燥的材料输送到电极输送机上的位置，然后干燥后，电极输送机与出料输送机相关联，以将材料从电极输送机移动到出料输送机上。 优选地，进料输送机在出料输送机正在接收从窑排出的材料的同时将材料输送到窑中。
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