RIDGED SERPENTINE WAVEGUIDE APPLICATOR
    1.
    发明申请

    公开(公告)号:WO2008091999A2

    公开(公告)日:2008-07-31

    申请号:PCT/US2008/051906

    申请日:2008-01-24

    CPC classification number: H05B6/701 H05B6/708 H05B6/788 H05B2206/046

    Abstract: A serpentine waveguide applicator for exposing a material to microwave energy for hearing, drying, or curing. A conveyor transports the material through aligned slots formed in facing sides at consecutive waveguide passes of the serpentine array. Each pass has a ridged waveguide structure with ridges in each corner of the otherwise rectangular waveguide. The ridges make the interior cross section of the waveguide passes cruciform and direct microwave energy away from the slots to reduce arcing, crosstalk, and leakage.

    Abstract translation: 用于将材料暴露于微波能量以用于听觉,干燥或固化的蛇形波导施加器。 输送机通过在蛇形阵列的连续波导通路中形成在相对侧中的对准狭槽来输送材料。 每个通道都有一个脊形波导结构,在另外的矩形波导的每个角上都有脊。 脊使波导的内部横截面通过十字形,并将微波能量从槽中引出,以减少电弧,串扰和泄漏。

    MICROWAVE T-JUNCTION APPLICATOR
    2.
    发明申请

    公开(公告)号:WO2008027826A2

    公开(公告)日:2008-03-06

    申请号:PCT/US2007/076875

    申请日:2007-08-27

    CPC classification number: F27B9/36 F27B9/243 F27D99/0001 F27D2099/0028

    Abstract: A T-junction microwave applicator and a method for making a T-junction microwave applicator with a microwave source supplying electromagnetic energy through a junction arm to a pair of collinear arms extending in opposite directions from their junction with the junction arm. The two collinear arms form a main waveguide terminated in end walls in which entrance and exit ports are formed for a conveyor to convey material to be heated through the main waveguide for exposure to electromagnetic energy. A rectangular conductive ridge in the wall of the main waveguide opposite the junction arm extends the length of the applicator. A cylindrical tuning bar spanning the junction is positioned vertically in a plane perpendicular to the axis of the main waveguide to maximize power transfer to the material to be heated.

    Abstract translation: 一种T形结微波施加器和一种用于制造具有微波源的T形微波施加器的方法,所述微波源通过连接臂将电磁能提供给从与结臂相连的相反方向延伸的一对共线臂。 两个共线臂形成端接在端壁中的主波导,其中形成入口和出口用于传送器,以输送待加热的材料通过主波导以暴露于电磁能。 主波导壁与连接臂相对的矩形导电脊延伸了施加器的长度。 跨越结的圆柱形调音杆垂直于垂直于主波导轴线的平面定位,以最大限度地传递到被加热材料。

    MULTI-STAGE CYLINDRICAL WAVEGUIDE APPLICATOR SYSTEMS

    公开(公告)号:WO2010008991A3

    公开(公告)日:2010-01-21

    申请号:PCT/US2009/050015

    申请日:2009-07-09

    Inventor: DROZD, Esther

    Abstract: A microwave applicator system exposing a material flowing through multiple applicator stages to a different radial heating pattern in each stage for uniform heating. A two-stage applicator system has a pair of back-to-back applicators, each having offset, outwardly jutting walls on opposite sides of a material flow path through a microwave exposure region. The offset, cylindrical juts formed in the wide walls of the generally rectangular waveguide cause hot spots to occur in material flowing through and between the narrow walls of the waveguide at opposite radial positions on a radial line oblique to the longitudinal direction of the waveguide. Uniform product heating can be achieved by directing a material sequentially through these two applicators in opposite directions.

    CYLINDRICAL MICROWAVE CHAMBER
    4.
    发明申请
    CYLINDRICAL MICROWAVE CHAMBER 审中-公开
    圆柱形微波炉

    公开(公告)号:WO2005079117A1

    公开(公告)日:2005-08-25

    申请号:PCT/US2005/002767

    申请日:2005-01-31

    CPC classification number: H05B6/80 H05B6/6402 H05B6/708

    Abstract: Microwave apparatus for exposing materials on an elongated member, such as a mandrel, to microwave energy. The apparatus includes a cylindrical microwave exposure chamber (10). Elongated slots (20) spaced about the circumference of the chamber (10) are in communication with openings (50) in the walls of waveguides (28) attached to the exterior (19) of the chamber. Microwave energy fed into the waveguide (28) is coupled into the chamber (10) through the associated openings (50) and slots (20). Bars (54) spaced apart in the direction of wave propagation span the opening (50) in the waveguide for uniform or customized delivery of microwave energy into the chamber (10). A low-profile mode stirrer (38) at the rear end of the chamber further evens out the energy distribution. A front plate (62) seals to the chamber and supports a rotatable mandrel (60) on which material to be exposed to microwave energy in the chamber (10) is wrapped.

    Abstract translation: 用于将诸如心轴的细长构件上的材料暴露于微波能量的微波装置。 该装置包括圆柱形微波曝光室(10)。 与腔室(10)的圆周间隔开的细长狭槽(20)与连接到腔室外部(19)的波导壁(28)的开口(50)连通。 馈送到波导(28)的微波能量通过相关联的开口(50)和狭槽(20)耦合到腔室(10)中。 在波浪传播方向上间隔开的条(54)跨越波导中的开口(50),以均匀或定制地将微波能量输送到腔室(10)中。 在室的后端处的低调模式搅拌器(38)进一步消除了能量分布。 前板(62)密封到腔室并且支撑可旋转的心轴(60),在腔室(10)中将暴露于微波能量的材料被包裹在其上。

    TUBULAR WAVEGUIDE APPLICATOR
    5.
    发明申请
    TUBULAR WAVEGUIDE APPLICATOR 审中-公开
    管状波形应用器

    公开(公告)号:WO2015080812A1

    公开(公告)日:2015-06-04

    申请号:PCT/US2014/061341

    申请日:2014-10-20

    CPC classification number: H05B6/784 H05B6/701

    Abstract: A microwave heating apparatus with a tubular waveguide applicator forming a heating chamber and with microwave-transparent centering elements to maintain product to be treated in proximity to the centerline axis of the chamber. Product is conveyed through the chamber in a direction in or opposite to the direction of propagation of microwaves. Cylindrical chokes at product entrance and exit openings into the chamber prevent microwave leakage and allow for large openings for large products. In some versions, a low-loss inner tube in the chamber coaxial with the tubular applicator is used to confine product to be heated in proximity to the centerline axis of the chamber to be heated effectively by microwaves with a TM01 field pattern.

    Abstract translation: 一种微波加热装置,其具有形成加热室的管状波导管施加器和微波透明定心元件,以将待处理的产品保持在室的中心线轴线附近。 产品沿微波传播方向或与微波传播方向相反的方向传送通过室。 产品入口和入口处的圆柱形扼流圈可防止微波泄漏,并允许大型产品大开口。 在一些形式中,与管状施加器同轴的腔室中的低损耗内管被用于通过具有TM01场模式的微波有效地将要加热的产品限制在待加热的腔的中心线轴线附近。

    WAVEGUIDE EXPOSURE CHAMBER FOR HEATING AND DRYING MATERIAL
    6.
    发明申请
    WAVEGUIDE EXPOSURE CHAMBER FOR HEATING AND DRYING MATERIAL 审中-公开
    用于加热和干燥材料的波形曝光室

    公开(公告)号:WO2007114865A2

    公开(公告)日:2007-10-11

    申请号:PCT/US2006/061887

    申请日:2006-12-12

    CPC classification number: H05B6/701 H05B6/78

    Abstract: Heating and drying devices including generally rectangular waveguide applicators forming exposure chambers for uniformly heating materials. Material to be heated enters and exits a microwave exposure region of the chamber through entrance and exit ports at opposite ends of the chamber. Various techniques are used to achieve uniform or preferred heating effects. Exemplary techniques include: 1) passageways jutting outward of chamber side walls; 2) ridges formed along top and bottom walls of the chamber; 3) metallic blocks extending along the length of the conveyor near the edges of the belt; 4) corner blocks to enhance heating of material in the middle of the chamber; 5) dormers formed in the top or bottom waveguide walls; 6) tapered waveguide segments; 7) virtual short plates and virtual waveguide walls; and 8) multiple-stage heaters having more than one chamber.

    Abstract translation: 加热和干燥装置包括大体上矩形的波导管施加器,形成用于均匀加热材料的曝光室。 待加热的材料通过入口和出口在腔室的相对端进入和离开室的微波曝光区域。 使用各种技术来实现均匀或优选的加热效果。 示例性技术包括:1)向室侧壁突出的通道; 2)沿室的顶壁和底壁形成的脊; 3)沿传送带的长度沿带的边缘延伸的金属块; 4)角块加强室内材料的加热; 5)在顶部或底部波导壁中形成的天花板; 6)锥形波导段; 7)虚拟短板和虚拟波导壁; 和8)具有多于一个室的多级加热器。

    WIDE WAVEGUIDE APPLICATOR
    7.
    发明申请
    WIDE WAVEGUIDE APPLICATOR 审中-公开
    宽波形应用器

    公开(公告)号:WO2009020895A1

    公开(公告)日:2009-02-12

    申请号:PCT/US2008/072062

    申请日:2008-08-04

    CPC classification number: F26B3/347 B29C2035/0855 H05B6/701

    Abstract: A microwave waveguide applicator and a method for heating, drying, or curing generally planar materials or products. The applicator comprises a waveguide having a pair of opposing broad sides perpendicular to a pair of opposing narrow sides bounding a rectangular exposure chamber. A microwave source generates and propagates microwaves through the chamber in a propagation direction and with an electric field generally directed from one broad wall to the other. Slotted openings in the narrow sides act as entrance and exit ports for a conveyor transporting a product along a conveying path through the chamber perpendicular to the propagation direction and perpendicular to the electric field. The waveguide may be ridged to focus or bend the electric field, especially for heating thin materials.

    Abstract translation: 微波波导管施加器和用于加热,干燥或固化大体平面材料或产品的方法。 施加器包括具有一对相对的宽边的波导,所述一对相对的宽边垂直于包围矩形曝光室的一对相对的窄边。 微波源在传播方向上产生并传播微波通过腔室,并且电场通常从一个宽壁引导到另一个。 狭窄侧面的开口用作输送器的入口和出口,输送器沿着传送路径通过腔室,垂直于传播方向并垂直于电场。 波导可以被脊化以聚焦或弯曲电场,特别是用于加热薄材料。

    MICROWAVE DRYING OF COAL
    8.
    发明申请
    MICROWAVE DRYING OF COAL 审中-公开
    微波炉微波干燥

    公开(公告)号:WO2007100393A2

    公开(公告)日:2007-09-07

    申请号:PCT/US2006/061241

    申请日:2006-11-30

    Abstract: A method for drying coal using microwave energy to achieve a controlled aggregate moisture content target range without starting combustion or degrading the coking qualities of the coal. Coal feed stock is first separated into fine grade coal and one or more larger grades. The fine grade coal is loaded onto a conveyor as a bed of fixed depth. The fine grade coal is conveyed continuously through a microwave-energized heating chamber for drying. The fine grade coal is dried sufficiently so that when it is combined with the larger grade coals, the moisture content of the aggregate is within a target moisture content range. By volumetrically and uniformly heating the coal, the microwave heating chamber boils away the water without heating the coal itself above about 90°C. In this way, the coal does not combust or oxidize, and its coking qualities are retained.

    Abstract translation: 一种使用微波能量干燥煤的方法,以实现可控的总含水量目标范围,而不会引起燃烧或降低煤的焦化性能。 煤原料首先分为细级煤和一个或多个较大的等级。 精细级的煤被作为固定深度的床装载到输送机上。 细级煤通过微波加热室连续输送干燥。 细级煤被充分干燥,使其与较大级煤合并时,骨料的含水量在目标含水量范围内。 通过体积均匀地加热煤,微波加热室在不将煤本身加热到约90℃以上的地方煮沸掉水。 这样,煤不燃烧或氧化,其焦炭质量得以保留。

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