公开(公告)号：US5244099A

公开(公告)日：1993-09-14

申请号：US764691

申请日：1991-09-23

申请人： Arthur Zaltzman ,  Sylvester L. Woodland

发明人： Arthur Zaltzman ,  Sylvester L. Woodland

IPC分类号： A01D33/04 ,  B03B4/00 ,  B03B4/02 ,  B03B5/30 ,  B03B5/40 ,  B03B5/46

CPC分类号： B03B5/30 ,  A01D33/04 ,  B03B4/00 ,  B03B4/02 ,  B03B5/40 ,  B03B5/46

摘要： An apparatus for providing a fluidized bed to effect the separation of a mixture of articles having at least a first density and a second density that is greater than the first density into separate groups. The apparatus includes an inclined trough which is supplied at an input end with either a fluidization medium, such as sand, or a mixture of articles from which a fluidized bed is formed by forcing gas upwardly through the bottom of the trough and through the fluidization medium or the mixture. In the case where a fluidization medium such as sand is used, the mixture of articles is introduced into the fluidized bed medium so as to be entrained therewith to effect separation as the articles travel in the direction of flow of the fluidized bed medium. Vertical oscillatory movement is imparted to the inclined trough to improve the separation and layering where the mixture of articles is fluidized, or to improve the density uniformity where a fluidization medium such as sand is fluidized as the bed.

公开(公告)号：US4861464A

公开(公告)日：1989-08-29

申请号：US55705

申请日：1987-05-29

申请人： Arthur Zaltzman ,  Zeev Schmilovitch ,  Brahm P. Verma ,  Aharon Hoffman

发明人： Arthur Zaltzman ,  Zeev Schmilovitch ,  Brahm P. Verma ,  Aharon Hoffman

IPC分类号： B03B5/46

CPC分类号： B03B5/46

摘要： A gas is forced upwardly through a fluidization medium, such as sand, producing a fluidized bed which flows under the influence of gravity through an inclined trough. The separation of the side walls of the trough decreases in the direction of flow of the fluidized bed increasing the depth thereof. The apparent density of the fluidized bed is maintained substantially uniform, regardless of the increase in depth, by correspondingly increasing the pressure of the air forced through the medium in a manner corresponding to the depth thereof. A gas distribution plate beneath the fluidization medium having a higher resistance to the flow of gas than the layer of fluidization medium thereabove contributes to the maintenance of a substantially uniform apparent density in the fluidized bed despite variations in its depth. The fluidized bed will separate mixture of articles added thereto into a float fraction of articles having densities less than the density of the fluidized bed and a sink fraction of articles of correspondingly greater densities. Upper and lower layers of the fluidized bed entraining float and sink fractions of the mixture, respectively, are separated at the output end of the trough and cleaned of fluidization medium. The method and apparatus disclosed have demonstrated utility in the separation and sorting of agricultural products of all sizes and particularly of products greater than 5 millimeters in diameter.

摘要翻译： 气体被迫向上通过诸如沙子的流化介质，产生在重力作用下通过倾斜槽流动的流化床。 槽的侧壁的分离在流化床的流动方向上减小，从而增加其深度。 通过相应地以对应于其深度的方式增加强制通过介质的空气的压力，不管深度的增加，流化床的表观密度保持基本均匀。 流化介质下方的气体分配板，比其上方的流化介质层具有更高的耐气体流动性，有助于在流化床中维持基本均匀的表观密度，尽管其深度有变化。 流化床将将加入其中的制品的混合物分离成具有小于流化床密度的密度的浮选部分和相应更大密度的制品的凹部分。 混合物夹带的流化床的上层和下层分别在槽的输出端分离并清洗流化介质。 所公开的方法和设备已经证明在分离和分选各种尺寸的农产品，特别是直径大于5毫米的产品中是有用的。

公开(公告)号：US5118409A

公开(公告)日：1992-06-02

申请号：US571136

申请日：1990-08-21

申请人： Arthur Zaltzman

发明人： Arthur Zaltzman

IPC分类号： A01D33/04 ,  B03B4/00 ,  B03B4/02 ,  B03B5/30 ,  B03B5/40 ,  B03B5/46

CPC分类号： A01D33/04 ,  B03B4/00 ,  B03B4/02 ,  B03B5/30 ,  B03B5/40 ,  B03B5/46

摘要： An apparatus for providing a fluidized bed to effect the separation of a mixture of articles having at least a first density and a second density that is greater than the first density into separate groups. The apparatus includes an inclined trough which is supplied at an input end with either a fluidization medium, such as sand, or a mixture of articles from which a fluidized bed is formed by forcing gas upwardly through the bottom of the trough and through the fluidization medium or the mixture. In the case where a fluidization medium such as sand is used, the mixture of articles is introduced into the fluidized bed medium so as to be entrained therewith to effect separation as the articles travel in the direction of flow of the fluidized bed medium. Vertical oscillatory movement is imparted to the inclined trough to improve the separation and layering where the mixture of articles is fluidized, or to improve the density uniformity where a fluidization medium such as sand is fluidized as the bed.

摘要翻译： 一种用于提供流化床以实现具有至少第一密度和大于第一密度的第二密度的制品的混合物分离成分离组的装置。 该设备包括倾斜槽，其在输入端处与诸如砂的流化介质或通过将气体向上通过槽的底部并且通过流化介质形成流化床而形成流化床的混合物 或混合物。 在使用诸如砂的流化介质的情况下，制品的混合物被引入到流化床介质中以便随着制品沿着流化床介质的流动方向行进而被夹带以进行分离。 向斜槽施加垂直振荡运动，以改善制品混合物流化的分离和分层，或者改善流化介质如沙子作为床流动时的密度均匀性。

公开(公告)号：US5048693A

公开(公告)日：1991-09-17

申请号：US373067

申请日：1989-06-28

申请人： Arthur Zaltzman

发明人： Arthur Zaltzman

IPC分类号： B07B4/08 ,  A01D33/04 ,  B03B5/28 ,  B03B5/30 ,  B03B5/40 ,  B03B5/46

CPC分类号： B03B5/30 ,  A01D33/04 ,  B03B5/40 ,  B03B5/46

摘要： A method and apparatus for sorting articles with small density differences utilizing a flotation stream. A separator is provided in which a flotation stream continuously flows through a trough and is used to effect the separation of a mixture of articles having small density differences into several groups. Each density group of the mixture of articles to be separated is introduced at the head of the flotation stream at a selected depth. In one embodiment, the flotation stream may be comprised of a fluidized bed which is created by forcing a gas upwardly through a fluidization medium such as sand. In another embodiment of the invention, the flotation stream may be formed from a liquid. Once the mixture of articles is introduced at the selected depth into the flotation stream near the head of the stream, since the density of the flotation stream is greater than the density of the articles, the articles of lesser density begin to ascend toward the top of the flotation stream while at the same time the articles are carried downstream by virtue of the velocity of the flotation stream. Articles having a greater density will be carried further downstream whereas articles having less density will ascend to the top of the stream at a point further upstream, thereby effecting a spacial separation of the articles based on their differing densities.

摘要翻译： 一种使用浮选流对具有小密度差异的物品进行分选的方法和装置。 提供了一种分离器，其中浮选流连续地流过槽，并用于使具有小密度差的制品的混合物分离成几组。 将要分离的制品的混合物的每个密度组在选定的深度处引入浮选流的头部。 在一个实施方案中，浮选流可以由通过迫使气体向上通过诸如砂的流化介质产生的流化床组成。 在本发明的另一个实施例中，浮选流可以由液体形成。 一旦将物品的混合物在所选择的深度处引入到流的头部附近的浮选流中，由于浮选流的密度大于制品的密度，所以较小密度的制品开始朝向 浮选流，同时通过浮选流的速度将物品运送到下游。 具有更大密度的制品将进一步下游，而具有较小密度的制品将在更上游的一点上升到流的顶部，从而基于它们不同的密度实现制品的空间分离。

公开(公告)号：US4322287A

公开(公告)日：1982-03-30

申请号：US265820

申请日：1981-05-21

申请人： Arthur Zaltzman ,  Amos Mizrach ,  Zeev Schmilovitz

发明人： Arthur Zaltzman ,  Amos Mizrach ,  Zeev Schmilovitz

IPC分类号： B03B5/46

CPC分类号： B03B5/46

摘要： A fluidized bed apparatus for separating and sorting solid bodies of different densities. It comprises:a container for the fluidized bed;means for maintaining the bed in a state of fluidization under constant pneumatic pressure;a conveyor whose inner face is adapted for lifting objects out of the bed (lifting conveyor) designed to travel between a lower portion of the bed and the space above it forming an enclosure of substantially rectangular prismatic shape with horizontal and vertical sides, the fluidized bed portion within said enclosure constituting a separation zone whose bottom is formed by the lower horizontal portion of the lifting conveyor;a first output conveyor for the removal of the sink fraction travelling through the space above the bed inside said enclosure and adapted to receive objects dumped by the lifting conveyor;a second output conveyor adapted for the removal of the float fraction;means for mechanically moving the float fraction in the bed out of the separation zone in a direction substantially normal to the direction of horizontal travel of said lifting conveyor; andmeans for feeding into the separation zone a mixture of objects to be separated.

摘要翻译： 一种用于分离和分选不同密度的固体的流化床装置。 它包括：用于流化床的容器; 用于在恒定气压下将床保持在流化状态的装置; 输送机，其内表面适于将物体提出床（提升输送机），设计成在床的下部和其上方的空间之间行进，形成具有水平和垂直侧面的大致矩形棱柱形状的外壳，流化床 所述外壳中的部分构成分离区，其底部由提升输送机的下部水平部分形成; 第一输出输送器，用于移除通过所述外壳内的床上方的空间移动的槽部分，并适于接收由提升输送机倾倒的物体; 第二输出输送机，适于去除浮子部分; 用于将基本上垂直于所述提升输送机的水平行进方向的方向机械地将所述床中的浮子部分移出所述分离区的装置; 以及用于将要分离的物体的混合物进料到分离区域的装置。