专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4321757A Drying apparatus and method 失效
标题翻译：干燥装置及方法
公开(公告)号：US4321757A
公开(公告)日：1982-03-30
申请号：US825688
申请日：1977-08-18
申请人： Laurens van der Blom
发明人： Laurens van der Blom
IPC分类号： B01D53/44 , B01D53/74 , D06B9/06 , F26B13/00 , F26B13/02 , F26B13/10 , F26B25/00 , G03C1/74 , F26B3/00
CPC分类号： G03C1/74 , D06B9/06 , F26B13/10 , F26B25/006 , G03C2001/7451 , Y02P70/641
摘要： A drying apparatus for drying material treated with liquid by heating and circulating a drying gas and for recovering vaporized liquid absorbed by a drying gas comprises at least one chamber unit which is essentially completely closed to the external atmosphere, a heating system in the chamber, a condensing system located in the chamber lowermost portion, means for guiding the material, in the form of a web, through the chamber through slot-like inlet and outlet openings such that the web is maintained free of contact at its wet surface, and a drying gas circulation system which divides the drying gas into several streams. The gas circulation system divides or splits the drying gas into a main-stream and a smaller side-stream, and repeatedly transports the main-stream past the web of material and transports the side-stream to and through the condensing system, and from the condensing system back to rejoin the main-stream, by circulation of the gas through elongated slot-like openings, formed by positioning and dimensioning of the web of material with regard to the side walls and the bottom of the chamber. A sealing system comprises at least one pair of rotatable rollers, positioned in proximity to each other, in or at a short distance from the opening made in an outer wall of a drying apparatus chamber, and positioned in such a way with regard to each other and to the web of material to pass through the drying apparatus, that the web runs between the rollers and partially over the circumference of each. Elastic sealing lips contact and press against the surfaces of the rollers to seal the space between the pair of rollers and the opening in the wall. A method of drying in the apparatus utilizes reduced oxygen content and maintenance of the dew point in the drying chamber at high levels.
摘要翻译：用于通过加热和循环干燥气体并用于回收由干燥气体吸收的蒸发的液体来干燥由液体处理的材料的干燥装置包括至少一个室单元，其基本上完全与外部大气封闭，室中的加热系统，位于腔室最下部分的冷凝系统，用于通过狭缝状入口和出口开口引导纤维网形式的材料通过腔室的装置，使得纤维网在其湿润表面保持不接触，并且干燥气体循环系统将干燥气体分成若干流。气体循环系统将干燥气体分成或分解成主流和较小的侧流，并且将主流重复地输送通过材料幅材并将侧流输送到并通过冷凝系统，并且从冷凝系统通过将气体通过细长的槽状开口循环而重新连接主流，通过相对于侧壁和室的底部定位和确定材料幅材而形成。密封系统包括至少一对可旋转的辊，它们彼此靠近地设置在与干燥设备室的外壁中形成的开口处或距离较短的距离处，并且以相对于彼此的方式定位以及通过干燥装置的材料卷材，幅材在辊之间延伸并部分地在每个辊的圆周上。弹性密封唇接触并压靠辊的表面以密封一对辊和壁之间的空间。该设备中的干燥方法利用较低的氧含量和干燥室中露点的维持。

IPRDB

热门服务

关于我们

友情链接

联系方式