JP2010227819A - Under-screen air chamber-type wet specific gravity sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an under-screen air chamber-type wet specific gravity sorter which can achieve efficient recovery of material having a relatively low specific gravity. <P>SOLUTION: In the under-screen air chamber-type wet specific gravity sorter (10) including a sorting chamber (12) into which a material to be sorted is charged, a pulsation chamber (14) located below the sorting chamber (12), a screen (16) located between the sorting chamber (12) and the pulsation chamber (14), a first discharge port (12b) installed in the sorting chamber (12) to discharge the material to be recovered through a first ejector, and a discharge passage (18) disposed adjacent to the first discharge port (12b) to serve as a route when discharging the material to be recovered outside, one or more second ejectors (20) are further provided which penetrate the outer wall from the points at the predetermined heights in the sorting chamber (12) to extend outside the sorting chamber (12). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention generally relates to a reticulated air chamber type wet specific gravity sorter. More specifically, the present invention relates to a reticulated air chamber type wet specific gravity sorter that enables efficient recovery of a material having a relatively low specific gravity.

  A reticulated air chamber type wet specific gravity sorter is known as a machine that selectively recovers a specific substance from a plurality of mixed substances. The reticulated air chamber type wet specific gravity sorter has a sorting chamber in which a substance to be sorted (hereinafter referred to as “substance to be sorted”) is placed at the upper side, and a pulsation chamber filled with water is located at the lower side. A mesh is arranged between the pulsation chamber. An air chamber for entering / exiting air is disposed in the pulsation chamber, and the water level in the sorting chamber can be raised / lowered by raising / lowering the water level in the air chamber by entering / exiting air. . And it is comprised so that the layer of the substance according to specific gravity may be formed in a sorting chamber by giving the suitable water pulsation to the substance put into the sorting chamber (refer FIG. 6).

  In a reticulated air chamber type wet specific gravity sorter, the bottom layer of the stratified material is usually the material to be recovered (hereinafter referred to as “recovered material”). It is collected to the outside through a discharge path from a discharge port provided in the lower part of the. On the other hand, a substance obtained by removing a substance to be collected from the substances to be sorted (hereinafter referred to as “light specific gravity substance”), together with overflow water overflowing the upper end of the discharge path from the recovery port located above the discharge path, It is designed to be discharged outside the sorter.

  However, in the conventional reticulated air chamber type wet specific gravity sorter, there is a problem that the discharge amount of the light specific gravity material depends on the overflow water (therefore, the magnitude of pulsation). In other words, even when large pulsations are required, the discharge of light specific gravity substances may be at least good, while even when pulsations must be reduced, a large amount of light specific gravity substances may be discharged. It may be preferable.

  The present invention has been devised in view of such circumstances, and an object thereof is to provide a reticulated air chamber type wet specific gravity sorter that enables efficient recovery of a material having a relatively low specific gravity. It is said.

  A sorting chamber into which a substance to be sorted according to claim 1 is charged, a pulsation chamber located below the sorting chamber, a mesh located between the sorting chamber and the pulsation chamber, and the sorting chamber A first outlet that is provided and discharges the substance to be recovered via the first ejector, and is disposed adjacent to the first outlet and serves as a path when the substance to be recovered is discharged to the outside. And a reticulated air chamber type wet specific gravity sorter comprising: a one or a plurality of second ejectors extending through the outer wall of the sorting chamber from a predetermined height in the sorting chamber to the outside of the sorting chamber Is further provided.

  The reticulated air chamber type wet specific gravity sorter according to claim 2 of the present application is characterized in that, in the specific gravity sorter of claim 1, the second ejector is a screw conveyor.

  According to the reticulated air chamber type wet specific gravity sorter of the present invention, a substance having a relatively low specific gravity can be efficiently recovered.

  Next, a reticulated air chamber type wet specific gravity sorter according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. A reticulated air chamber type wet specific gravity sorter according to a preferred embodiment of the present invention generally indicated by reference numeral 10 in FIG. 1 includes a sorting chamber 12 into which a material to be sorted is placed and a sorting medium (for example, water). A pulsation chamber 14 to be filled, and a mesh 16 disposed between the sorting chamber 12 and the pulsation chamber 14 are provided.

  An input port 12a through which a substance to be selected is input is provided at the upper part on one side of the sorting chamber 12, and a first outlet 12b through which the substance to be recovered is discharged at the lower part on the other side of the sorting chamber 12. Is provided. A discharge path 18 is disposed adjacent to the first discharge port 12b to be a path when the substance to be recovered is discharged to the outside, and the first ejector for discharging the substance to be recovered in the discharge path 18 18a is arranged.

  The first ejector 18a has a configuration in which a plurality of blades (four in FIG. 1) are attached to a shaft, and the blades are rotated by rotationally driving a motor (not shown) connected to the shaft. Thus, the substance to be collected located in the vicinity of the first discharge port 12b is discharged through the discharge path 18.

  The reticulated air chamber type wet specific gravity sorter 10 also extends to the outside of the sorting chamber 12 through the outer wall of the sorting chamber 12 from a predetermined height inside the sorting chamber 12 (height h from the mesh 16). A second ejector 20 is provided (see FIG. 2).

  The second ejector 20 includes a pipe-shaped casing 20a, a screw-shaped rotating blade 20b disposed in the casing 20a, and an opening 20c provided in the casing 20a. As the second ejector 22, a normal screw conveyor may be used.

  The second ejector 20 rotates the blade 20b by rotating a motor (not shown), thereby discharging the substance to be collected located near the opening 20c to the outside.

  In addition, the conveyor 22 for conveying a to-be-recovered substance to a desired location is connected with the front-end | tip of the 2nd ejector 20. As shown in FIG. The type of the conveyor 22 may be a type extending vertically upward (see FIG. 3A), a type extending obliquely upward (see FIG. 3B), or a type extending downward. (See FIG. 3C).

Next, with reference to FIG. 4, the operation of the reticulated air chamber type wet specific gravity sorter 10 configured as described above will be described. Substance composed of substance A (specific gravity γ _A , indicated by “◯” in FIG. 4) and substance B (specific gravity γ _B <γ _A , indicated by “△” in FIG. 4 and “light specific gravity substance”) Take the case of handling (A + B) as an example.

  First, when the substance (A + B) is put into the sorting chamber and pulsation is started, the substance (A + B) is gradually separated due to the difference in specific gravity, and the substance A “◯” having a high specific gravity passes through the lower layer and the substance B having a low specific gravity. Stratification is performed so that “Δ” constitutes the upper layer. Of the substances stratified in this way, the substance A is discharged to the outside through the discharge path 18 from the discharge port 12b by operating the first ejector 18a. On the other hand, the light specific gravity substance B located in the upper layer of the sorting chamber is discharged from the second ejector 20 to the outside (see FIG. 4B).

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

For example, in the above-described embodiment, one second ejector 20 is arranged in the specific gravity sorter. However, as shown in FIG. 5A, a plurality of second ejectors (that is, heights from the mesh 16 are set). A second ejector 20 ′ may be disposed at h _{1 and} a second ejector 20 ″ may be disposed at a height h ₂ from the mesh 16). By comprising in this way, the substance of a desired layer can be selectively discharged | emitted. Further, the pair of second ejectors 20 in which the directions of the spirals of the rotating blades are opposite to each other may be arranged so as to go away from each other (see FIG. 5B).

  Furthermore, although the specific gravity sorter having a single sorting chamber has been described in the above embodiment, the second ejector may be disposed in a specific gravity sorter in which a plurality of sorting chambers are connected in series.

1 is a perspective view schematically showing a reticulated air chamber type wet specific gravity sorter according to a preferred embodiment of the present invention. It is sectional drawing of the sorter | selector of FIG. It is a series of figures which showed the form of the conveyor connected with a 2nd ejector at the front-end | tip in the sorter of FIG. It is a figure for demonstrating the action | operation of the reticulated air chamber type wet specific gravity sorter of FIG. It is sectional drawing which showed the modification of the sorter of FIG. It is a figure for demonstrating the operating principle of a reticulated air chamber type wet specific gravity sorter.

DESCRIPTION OF SYMBOLS 10 Reticulated air chamber type wet specific gravity sorter 12 Sorting room 12a Input port 12b 1st discharge port 14 Pulsating chamber 16 Net | network 18 Discharge path 18a 1st ejector 20 2nd ejector 20a Pipe-shaped casing 20b Rotating blade 20c Opening part 22 Conveyor

Claims (2)

A sorting chamber into which a substance to be sorted is charged; a pulsation chamber located below the sorting chamber; a mesh located between the sorting chamber and the pulsation chamber; and the first ejector provided in the sorting chamber. A net having a first discharge port through which a substance to be recovered is discharged and a discharge path that is disposed adjacent to the first discharge port and serves as a path when the substance to be recovered is discharged to the outside In the air chamber type wet specific gravity sorter,
The specific gravity sorter further comprising one or a plurality of second ejectors extending from the sorting chamber at a predetermined height through the outer wall of the sorting chamber to the outside of the sorting chamber. The specific gravity sorter according to claim 1, wherein the second ejector is a screw conveyor.

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