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    • 2. 发明授权
    • Flow control insert for hopper bottom bins
    • 料斗底部底部的流量控制刀片
    • US4548342A
    • 1985-10-22
    • US483656
    • 1983-04-11
    • Glen W. Fisher
    • Glen W. Fisher
    • B65D88/28
    • B65D88/28
    • Solid particulate material is moved through a hopper bottom bin in mass flow inducted by a conical surface positioned within the hopper to compensate for the shallowness thereof. Laminar mass flow movement will occur in the uppermost region of the material within the vertical bin walls. The hopper cross-section is separated into segregated flow channels by the conical surface, and by webs extending therefrom. The conical surface and webs have overall dimensions small enough for insertion through a bolt ring on the bottom of the hopper. The proportion of the material flowing through each channel is chosen to achieve a desired discharge flow pattern by varying the relative cross-sectional areas of either the inlets or the outlets of the channels. This results in changes in the velocity profile of the downwardly flowing material in a zone above and adjacent to the separate flow channels.
    • 固体颗粒材料通过由位于料斗内的锥形表面引导的质量流动通过料斗底部仓,以补偿其浅度。 层状质量流动将发生在垂直箱壁内材料的最上部区域。 料斗横截面通过锥形表面和从其延伸的纤维网分离成分离的流动通道。 锥形表面和腹板具有足够小的尺寸,用于插入通过料斗底部的螺栓环。 选择流过每个通道的材料的比例以通过改变通道的入口或出口的相对横截面积来实现期望的排放流动模式。 这导致向下流动的材料在单独的流动通道上方和附近的区域中的速度分布的变化。
    • 5. 发明授权
    • Stream throttle
    • 流油门
    • US4228822A
    • 1980-10-21
    • US940989
    • 1978-09-11
    • Glen W. Fisher
    • Glen W. Fisher
    • B65D90/62F15D1/10D03D39/20
    • F15D1/10B65D90/626
    • The stream throttle includes a movable closure member having an inclined upstream surface and a parabolic downstream surface, an orifice which is throttled by the downstream surface, and an inclined entry surface extending upstream from the orifice in spaced relation to the downstream surface. The entry and downstream surfaces provide a flow control zone which terminates adjacent the orifice. These surfaces, together with the upstream surface, maintain material flow toward and through the control zone uniform, with minimum velocity gradients. The parabolic downstream surface outline causes orifice area and hence flow capacity to vary on a linear basis during movement of the closure member with respect to the orifice. In another disclosed embodiment, the upstream surface is formed by a stationary diverter member within which the closure member is insertable for stop-start flow control. The stream throttle may be used to provide a mass flow variable orifice for linear volumetric control of particulate material flow rates.
    • 流节流阀包括具有倾斜的上游表面和抛物线下游表面的可移动的关闭件,由下游表面节流的孔口以及从孔口的上游延伸并与下游表面间隔开的倾斜进入表面。 入口和下游表面提供了一个在孔口附近终止的流动控制区域。 这些表面与上游表面一起,以最小的速度梯度保持朝向和穿过控制区的材料流动均匀。 抛物面下游表面轮廓在闭合构件相对于孔口移动期间引起孔口面积并因此流动能力在线性基础上变化。 在另一个公开的实施例中,上游表面由固定的分流器构件形成,其中闭合构件可插入以用于停止启动流量控制。 流节流阀可以用于提供用于线性体积控制颗粒材料流速的质量流量可变孔口。
    • 6. 发明授权
    • System for controlling segregation within a bin during material
withdrawal
    • 在物料取出期间控制箱内分离的系统
    • US4030633A
    • 1977-06-21
    • US609801
    • 1975-08-29
    • Glen W. Fisher
    • Glen W. Fisher
    • B01F5/24B65D88/28B65G65/30
    • B01F5/241B65D88/28
    • The system includes a plurality of material discharge spouts combined with a blending device for use with a hoppered bin. Each spout opens to the hopper at a location selected to draw material into the hopper from substantially one predetermined portion of a horizontal bin cross sectional plane in a first in -- first out segregation free manner. The blending device combines the material discharge streams formed by the spouts in proportion to the areas of the portions of the horizontal bin cross sectional plane from which they are drawn, respectively, to form a common discharge stream of uniform composition. The principles of the invention are applicable to conversion of existing bins or bin bottoms, or to a bin withdrawal system or process. Also disclosed is a blending unit which includes a mass flow hopper, the blending unit being particularly suited for bin or bin bottom conversion application.
    • 该系统包括与混合装置组合的多个材料排出喷口,用于与锄头箱一起使用。 每个喷口在一个选择的位置上以一个先进先出的无偏离方式从基本上一个预定部分的水平仓横截面平面向料斗中打开的位置。 混合装置将由喷口形成的材料排出流分别与它们被绘制的水平仓横截面的部分的面积成比例地组合,以形成均匀组成的公共排放流。 本发明的原理适用于转换现有的箱体或箱体底部,或适用于箱子退出系统或过程。 还公开了一种混合单元,其包括质量流量料斗,所述混合单元特别适用于料仓或料仓底部转化应用。