JPS6312672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air sorting device for sorting waste after crushing, or for sorting composted material after composting household garbage.

Conventionally, in this type of wind sorting device, the objects to be sorted are dropped from the tip of the chute, and air is blown onto the objects in the process of falling, so that light objects are blown far away and heavy objects are blown closer to sort them. is going on.

However, when sorting items that contain moisture, such as garbage that has been composted, there is a problem that it is difficult to sort items effectively because they stick to each other and cannot be separated.

The present invention provides an air sorting device that can sort even items containing a large amount of moisture using wind power.

An embodiment of the present invention will be described below with reference to FIG. 1. Reference numeral 1 indicates a conveyor for conveying composted material composted by a composting processing device, and iron pieces are separated by a magnetic separator 2 provided at the tip of this conveyor 1. , this iron piece is stored in the first storage box 3. Others are discharged onto the vibrating feeder 4, where they are separated into large and small shapes.

The vibrating feeder 4 has an upper sliding surface 5 and a lower sliding surface 6 in which a sorting hole is formed, and is housed in a second storage box 7 from the tip of the upper sliding surface 5.

Other small objects fall through the sorting hole onto the lower sliding surface 6, and are quantitatively guided by the vibration action to a chute 8, which will be described later. The chute 8 is inclined at about 45 degrees in the opposite direction to the feeder 4, and a repulsion wheel 9 rotatably driven by a motor M is provided below the chute 8. A plurality of repulsion plates 11, 11... are provided.

Incidentally, the chute 8 is arranged so as to face the central axis of the repulsion wheel 9.

Reference numeral 12 denotes a separation chamber formed in front of the repulsion wheel 9, and this separation chamber 12 mainly consists of the upper wall 13' and the front wall 1.
The base of the guide plate 13, which becomes the upper wall 13', extends in the tangential direction of the repulsion wheel 9, that is, in the direction perpendicular to the chute 8 surface. , also front wall 1
The tip of the guide plate 13, which is 3", has a small radius of curvature and is inverted approximately 180 degrees and tilted rearward.
This rear inclined portion serves as a chute for guiding the objects to be sorted to a first separation port 17, which will be described later.

14 is a partition plate vertically installed in front of the separation chamber 12;
The separation chamber 12 is divided into a first separation chamber 15 at the front and a second separation chamber 16 at the rear by the partition plate 14, and the first separation chamber 15 and the second separation chamber 16 communicate with each other at the upper part of the partition plate 14. ing.

A first separation port 17 is provided at the bottom of the first separation chamber 15.
is opened, and a second separation chamber 16 is opened, and a second
Separation port 18 is open. Said first separation port 17
A separation flow passage 19 whose inclination direction is alternately changed is connected to the flow passage 19, and one end of a duct 21 communicating with a blower 20 is opened in the middle of this flow passage 19, and the air from the blower 20 is passed through the duct 20 and the separation flow passage. 19, first separation port 17 serving as an air inlet, first separation chamber 15
The air flows through the second separation chamber 16 to the second separation port 18 which serves as an air outlet.

A third storage box 22 for storing glass pieces with a high coefficient of repulsion is connected to the lower end of the separation flow passage 19, and a fourth storage box 23 for storing garbage with a low coefficient of repulsion is connected to the second separation port 18. A duct 25 communicating with the cyclone 24 is connected to the upper part of the fourth storage box 23.

The upper end of the partition plate 14 is provided with an inclined surface 14' that slopes forward and upward, and this inclined surface 14' allows the flow of air to rise vertically from the first separation port 17 to the first separation chamber 15. The flow is changed forward and upward, and turbulent flow is generated within the first separation chamber 15.

Next, referring to FIG. 2 of another embodiment,
FIG. 2 shows a structure in which the conveyor 1, vibrating feeder 4, and repulsion wheel 9 shown in FIG.
The objects to be sorted introduced from 6 are placed on the front wall 1 of the separation chamber 12.
Discharged onto a 3″ slope.

In the present invention, with the above configuration, when the composted material is discharged onto the conveyor 1 by the separation composting processing device, the iron pieces in the compost are transferred to the magnetic separator 2.
Therefore, they are separately stored in the first storage box 3. In the feeder 4, a large plastic piece remains on the upper sliding surface 5, and this plastic piece falls from its tip and is stored in the second storage box 7. Smaller shapes of other shapes fall through the sorting holes onto the lower sliding surface 6, which are quantified by the vibration action and discharged onto the chute 8.

The compost discharged onto the chute 8 falls along the chute 8 onto the repulsion wheel 9 below. The composted material that has fallen onto the repulsion wheel 9 is transferred to the rotating repulsion plate 1.
1, 11... bounces him forward. At this time, the glass pieces having a high coefficient of restitution are blown away in the tangential direction and are guided to the first separation port 17 along the arcuate guide plate 13.

On the other hand, food waste with a small coefficient of restitution falls in front of the partition plate 14 without passing over the partition plate 14, and
It is stored in the fourth storage box 23 through the separation port 18. Glass pieces are mainly guided to the first separation port 17 described above, but some of these glass pieces have garbage attached to them, and at this time, they are exposed to the air flow rising from the first separation port 17. Therefore, the surface area of the glass piece to which garbage has adhered becomes considerably large compared to its weight, so that it is blown forward and upward by the action of the rising air flow and the inclined surface 14'.
At this time, the glass to which the garbage has adhered collides with the guide plate 13 of the front wall portion 13, and is again guided to the first separation port 17 along the slope of the guide plate 13, thereby moving in an annular manner.

During the movement, garbage adhering to the glass pieces is separated due to the impact when it collides with the guide plate 13 and the turbulence of the air, and the glass pieces alone move against the air flow. Since it falls, it passes through the separation flow path 19 and is accommodated in the third storage box 22 .

On the other hand, since the garbage (composted material) separated from the glass pieces becomes lighter, it is guided to the second separation port 23 by the air flow.

Incidentally, the embodiment shown in FIG. 2 is most suitable when separating the objects into two types, a light object and a heavy object.

As described above, the present invention allows the air to flow from the first separation port to the second separation port, and also connects the upper part of the partition plate that partitions the separation chamber into the first separation chamber and the second separation chamber to the front wall of the separation chamber. Since the air from the first separation port is tilted toward the front wall, the air from the first separation port can flow toward the front wall, so even if the objects to be sorted have a lot of moisture and are likely to join together, the air flow can move them to the front wall. Since the pieces are transported and collided with the front wall, they are reliably separated by this impact and can be sorted and collected.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the apparatus of the present invention, and FIG. 2 is a diagram showing another embodiment. 12 is a separation chamber, 13 is a guide plate, 14 is a partition plate, 15 is a first separation chamber, 16 is a second separation chamber, 17
1 is a first separation port, 18 is a second separation port, and 20 is a blower.

Claims (1)

[Claims] 1. A partition plate is provided in the separation chamber to divide the separation chamber into a first separation chamber at the front and a second separation chamber at the rear, and to communicate the front and back at the upper part, and a first separation port is provided at the bottom of the first separation chamber. , a second separation port is opened at the lower part of the second separation chamber, and a front wall of a guide plate is formed at the front opposite to the partition plate to receive the object to be sorted and guide it to the first separation port. The first separation port serves as an air inlet, the second separation port serves as an air outlet, and the upper part of the partition plate directs the airflow from the first separation port toward the front wall. A wind sorting device formed by forming an inclined surface that can be used.