JPH0719587Y2 - Wind sorter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to, for example, a wind-screening device used for separating a cut piece of a cement bag into heavy paper and light vinyl. An air flow supply path for the object to be processed, an air flow supply path for a light substance at the top, and a drop recovery path for a heavy material at the bottom, respectively, and a rotary valve is provided in the drop recovery path. Regarding the device.

[Conventional technology]

Only the blower connected to the airflow supply path supplies the sorting air into the air-selecting chamber, and the sorting air conveys the object to be processed into the air-selecting chamber. It was configured so that the heavy substances falling in the air selection chamber by being conveyed by the air flow were discharged by a rotary valve (for example, see Japanese Utility Model Laid-Open No. 59-154385).

[Problems to be solved by the device]

However, it is easy to make the wind insufficient by supplying only the sorted air from the air flow supply path, and it is easy to mix the light material with the heavy material and send it to the drop recovery path to be exhausted by the rotary valve. It was

An object of the present invention is to further improve the wind selection performance, and to devise a structure for that purpose so that a heavy substance can be smoothly discharged from the rotary valve.

[Means for Solving the Problems]

The feature of the present invention is that a blower is connected to the hollow rotary shaft of the rotary valve of the drop recovery path connected to the lower part of the wind selection chamber, and the airflow is jetted out between the partition blades attached to the hollow rotary shaft. Since the opening is formed, its function and effect are as follows.

[Action]

In other words, the gas sent into the hollow rotary shaft of the rotary valve by the blower is sent to the space between the partition blades by the opening,
The one that communicates with the air selection chamber can be blown up as the secondary selection wind, and the one that communicates with the discharge port can be blown out as the transport wind.

Therefore, the substance dropped and supplied from the wind selection chamber to the rotary valve can be sorted again by the secondary sorting air from the rotary valve, and it is possible to effectively suppress the blowing up of the light substance to mix it with the heavy substance.

Moreover, since the sorting wind is ejected from the opening of the hollow rotary shaft, it is easy to uniformly feed the sorting wind to the entire fall recovery path, and it is easy to flow the sorting wind in the direction opposite to the direction in which the substance falls. In addition, compared to connecting the secondary selection wind supply passage to the fall recovery passage, the wind selection performance can be improved more reliably and sufficiently.

Further, since the heavy substance is discharged from the rotary valve by the cooperation of the self-weight drop and the blowing off by the conveying wind, the heavy substance can be taken out smoothly and the clogging of the rotary valve can be surely eliminated.

[Effect of device]

As a result, it was possible to improve the wind separation performance and the rotary valve discharge performance all at once, and to provide a wind separation device with even better performance.

〔Example〕

 Next, an embodiment will be described with reference to FIGS. 1 and 2.

With respect to the wind selection chamber (2) in the case (1), an air flow supply path (3) is provided in the upper and lower middle and an air flow recovery path (4) is provided in the upper part
At the lower part, the drop collection paths (5) are connected to each other, and the object supply device (6) is connected to the air flow supply path (3) to select an object to be processed containing a light substance and a heavy substance in a wind separation chamber ( 2) is configured to carry an air flow, and a solid-gas separation device (7) and an exhaust fan (8) are connected to the air flow recovery passageway (4) so that a light substance carried by the air flow is solid-gas separation device (7). Configured to collect
Install a rotary valve (9) in the drop recovery path (5),
The heavy substance that falls is configured to be discharged by the rotary valve (9).

The jet outlet (3a) of the air flow supply passage (3) is arranged in the upper part of the air-selecting chamber (2) so as to face upward, and a collision member (10) facing the jet outlet (3a) is provided so that the object to be treated collides with the collision member. It is sprayed on (10) and decomposed and dispersed horizontally so that light and heavy substances are easily separated by wind separation.
It is configured such that light substances are blown up to the air flow recovery passageway (4) by the sorting air and dropped to the fall recovery passageway (5).

In the rotary valve (9), a large number of partition blades (12) are attached to the hollow rotary shaft (11) in the circumferential direction at substantially equal intervals, and the hollow rotary shaft (11) is driven by an electric motor (M). Accordingly, each of the spaces between the partition blades (12) communicates with the air selection chamber (2), the position closed with the case (1), the position communicated with the discharge port (13), and the case (1).
It is configured so that it moves to the position closed in that order and repeatedly, so that the heavy substance received from the wind-selection chamber (2) can be sent to the discharge port (13), and the fall recovery path (5) is closed. I am able to maintain the condition.

Hollow rotating shaft (11) via rotary joint (14)
The blower (15) is connected to the hollow rotary shaft (1), and a large number of openings (16) for ejecting an air flow between the partition blades (12)
A porous plate (17), which is formed in 1) by being dispersed in the circumferential direction and the longitudinal direction thereof and which evenly distributes the air flow from the opening (16), is provided between the partition blades (12), and the hollow rotary shaft (11) is provided. )
Is supplied from the falling recovery path (5) to the wind selection chamber (2) as secondary sorting air, and a light substance mixed with a heavy material can be blown up to the air flow recovery path (4). The gas from the hollow rotary shaft (11) is blown out to the discharge port (13) so that a heavy substance can be smoothly sent from the rotary valve (9) to the discharge port (13).

[Another embodiment]

 Next, another embodiment will be described.

A blower (15) may be branched and connected to the upstream side of the object supply device (6) of the air flow supply path (3), or another blower may be provided, in which case the blower (8) is omitted. Is also possible.

The specific structure of the workpiece supply device (6) can be selected appropriately,
For example, a drive rotary scraping tool provided at the outlet of the hopper, a screw feeder, or the like can be used.

The specific structure of the solid-gas separation device (7) can be appropriately selected, and, for example, a back filter or a cyclone can be used.

The wind-selecting chamber (2) can be appropriately selected in terms of structure, wind-selecting method, and the like.

The specific structure of the rotary valve (9) can be changed appropriately,
For example, the perforated plate (17) may be omitted, and the hollow rotary shaft (1
A static electricity removal bar may be installed inside 1) to eliminate the adhesion of substances due to static electricity and improve the efficiency of wind selection.

The type of the object to be treated and the type of gas sent to the wind-selecting chamber (2) do not matter.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, FIG. 1 is an overall conceptual view, and FIG. 2 is an explanatory view of main parts. (2) …… Wind selection room, (3) …… Air flow supply path, (4) ……
Air flow collection path, (5) ...... Drop collection path, (9) ...... Rotary valve, (11) ...... Hollow rotating shaft, (12) ...... Partition blade, (15) ...... Blower, (16) …… Opening.

Claims (1)

[Scope of utility model registration request] 1. An air flow supply path (3) for an object to be treated is provided at an upper and lower intermediate portion of a wind selection chamber (2), an air flow recovery path (4) for a light substance is provided at an upper portion, and a heavy substance is provided at a lower portion. Fall collection path (5)
And a blower (15) is connected to the hollow rotary shaft (11) of the rotary valve (9), and a rotary valve (9) is provided in the fall recovery path (5). An air separation device having openings (16) for ejecting an air flow between partition blades (12) attached to the hollow rotating shaft (11).