JP2717637B2 - Sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting apparatus for sorting wastes or mixtures of various industries, and more particularly to a sorting apparatus using a roller-supported cylindrical trommel.

[0002]

2. Description of the Related Art Conventionally, as a sorting apparatus of this type, for example, a municipal solid waste separation apparatus described in Japanese Patent Application Laid-Open No. 54-157378 is known. In this separation device, the tip of a suction duct installed outside the cylindrical trommel is inserted into the outlet of the roller-supported cylindrical trommel, and the tip of the suction duct has a length almost half of the total length of the cylindrical trommel. And a suction nozzle having an axial suction port is attached. Then, from the trommel oversize (product on the sieve) of the municipal waste put into the trommel, a light-weight material such as paper or plastic having a string shape, a tape shape or a film shape is suctioned and separated by a suction nozzle. is there.

[0003]

However, in the conventional sorting apparatus, since the suction of the light-weight object in the object to be processed by the suction nozzle is performed from a position about the middle of the entire length of the trommel, the trommel undersize (the sieved product) is not used. ) Is performed at an insufficient stage, and the trommel undersize may be sucked toward the light-weight material side, which causes a problem that the sorting accuracy is reduced. Further, when a light-weight material such as a string or a tape is mixed in the object to be processed, these may be entangled with the suction nozzle, resulting in poor suction or damage to the suction duct. In view of the above, the present invention provides a sorting device that can improve sorting accuracy, can perform smooth sorting, and does not cause damage to a suction duct when sorting heavy and light objects during trommel oversize. With the goal.

[0004]

Means for Solving the Problems] To solve the above problems, selecting another device of the present invention is continuously to the outlet end of the cylindrical trommel roller support type, sorting in which a large number of through holes in a peripheral wall The suction tube, which is supported by a duct and a duct support device installed outside the sorting tube and whose tip is inserted into the sorting tube, is attached to the tip of the suction duct, and the suction port faces the inner peripheral surface of the sorting tube. A suction nozzle and a suction nozzle outside the sorting cylinder
The nozzle is installed to face the nozzle and air is drawn in the suction direction of the suction nozzle.
And a blowing nozzle for blowing air . On the other hand, it is preferable that the suction duct is tiltably supported by the duct support device, and the suction nozzle is rotatably mounted on the suction duct along the inner peripheral surface of the sorting cylinder. It is preferable that the blowing nozzle is provided so as to be movable in the circumferential direction along the outer peripheral surface of the sorting cylinder.
Further, it is preferable that the duct support device is provided so as to be able to advance and retreat with respect to the sorting cylinder.

[0005]

[Action] In selecting another device of the present invention, in a screening tube which is provided continuously to the outlet end of the cylindrical trommel, Tron Mel undersize is sufficiently screened Tron Mel oversize
Separation of heavy and light materials that are difficult to separate from inside is improved,
Suction of lightweight objects from them is performed. On the other hand, the distance between the suction nozzle and the inner peripheral surface of the sorting cylinder is adjusted by tiltably supporting the suction duct on the duct support device and rotatably attaching the suction nozzle to the suction duct along the inner peripheral surface of the sorting cylinder. In addition, the position in the circumferential direction can be adjusted. By providing the blowing nozzle so as to be movable in the circumferential direction along the outer peripheral surface of the sorting cylinder, the blowing nozzle can follow the circumferential movement of the suction nozzle. Further, by providing the duct support device so as to be able to advance and retreat with respect to the sorting cylinder, the suction nozzle can be extracted from the sorting cylinder.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are schematic views showing one embodiment of the sorting apparatus of the present invention, and are sectional views taken along the line II-II in FIG. In the figure, reference numeral 1 denotes a roller-supported cylindrical trommel having one end (the left end in FIG. 1) as an inlet and the other end (the right end in FIG. 1) as an outlet. A sorting cylinder 3 which is formed of a short cylinder having the same diameter as the cylindrical trommel 1 and has a large number of through-holes 2 formed in a peripheral wall thereof is continuously provided. Outside the sorting cylinder 3, a duct support device 4 that can advance and retreat from the axial direction with respect to the sorting cylinder 3 is installed.
The duct support device 4 fixedly supports a suction duct 5 which extends in the axial direction at substantially the same inclination as the cylindrical trommel 1. The tip of the suction duct 5 is a sorting cylinder 3
A suction nozzle 6 having a suction port opposed to the inner peripheral surface of the sorting cylinder 3 is attached to the tip of the suction duct 5. As shown in FIG. 2, the position of the suction port of the suction nozzle 6 facing the inner peripheral surface of the sorting cylinder 3 is appropriately deviated in the rotational direction from the lowermost part of the sorting cylinder 3 rotating together with the cylindrical trommel 1. At this point, where the trommel oversize W _o is a lower layer W _o1 made of a relatively heavy or low frictional material,
It is separated into two layers, that is, an upper layer _{Wo2 made} of a relatively lightweight material or a material having a large frictional resistance. or,
Air is supplied outside the sorting section 3 in the suction direction of the suction nozzle 6.
The blowing nozzle 25 that blows out faces the suction nozzle 6
Are located.

On the other hand, the base end of the suction duct 5 is connected to the suction port of the cyclone 8 via the flexible duct 7 and the like, and the discharge port of the cyclone 8 is connected to the blower 10 via the dust collector 9. Have been. In FIG. 1, reference numeral 11 denotes a trommel undersize chute, and a belt conveyor 12 for carrying out the trommel undersize is disposed below the chute. Reference numeral 13 denotes a trommel oversize chute. Below the chute, a belt conveyor 14 for carrying out a trommel oversize from which light-weight materials are separated is provided.

In the sorting apparatus having the above-described structure, when an object to be processed is loaded from the loading port of the cylindrical trommel 1, sufficient sorting is performed by the cylindrical trommel, and the trommel undersize is changed from the trommel undersize chute 11 to the belt conveyor. 12 and carried out by the conveyor 12, while the trommel oversize W
_o progressively the lower portion W _o1 of relatively those small even or frictional resistance is heavy, while being free in two layers of the upper portion W _o2 of relatively small ones lightweight material and a or frictional resistance , Into the sorting cylinder 3,
The air blown from the blowing nozzle 25 further triggers
Heavy and light weight that is difficult to release during rommel oversize
The separation of the objects becomes good, the upper layer _Wo2 is sucked by the suction nozzle 6, and the lower layer _Wo1 falls from the trommel oversize chute 13 onto the belt conveyor 14 and is carried out by the conveyor 14. Then, the upper layer portion _Wo2 reaches the cyclone 8 via the suction duct 5, where a light-weight object having a string shape, a tape shape, a film shape, or the like is separated, while dust is collected by the dust collector 9. , And air is exhausted from the blower 10.
Therefore, in the above-described sorting apparatus, the trommel oversize in which the trommel undersize is sufficiently sorted in the sorting cylinder connected to the discharge end of the cylindrical trommel is used.
Separation of heavy and light materials that are difficult to separate from inside is improved,
Since the light-weight material is sucked from them , the trommel under size is not sucked toward the light-weight material side, and the sorting accuracy can be improved. It is possible to carry out a smooth sorting without getting entangled in the suction duct and to prevent the suction duct from being damaged. Further, the suction duct 5 and the suction nozzle 6 are separated from the sorting cylinder 3 by retracting the duct support device 4.
Since the inside of the sorting tube 3 and the cylindrical trommel 1 can be easily inspected and cleaned because the inside of the sorting tube 3 and the cylindrical trommel 1 can be easily extracted.

In the above-described embodiment, the case where the suction duct 5 and the suction nozzle 6 are fixed is described. However, the present invention is not limited to this.
As shown in FIG.
At the same time, a bracket 16 attached to the lower surface of the tilt plate 15 on the base end side (right end side in FIG. 3) of the suction duct 5 is pivotally supported by a horizontal pin 18 on a bracket 17 on the duct support device 4. A bracket 20 provided on the lower surface of the tilt plate 15 on the tip end side (the left end side in FIG. 3) of the suction duct 5 so as to be able to adjust the protrusion by an adjustment bolt 19 is provided with a horizontal pin 22 on the bracket 21 on the duct support device 4. , The suction duct 5 is provided to be tiltable, and as shown in FIGS. 4 and 5, the flange 5 a of the suction duct 5 having the elongated hole 23 in the circumferential direction and the flange 6 a of the suction nozzle 6 are The suction nozzle 6 may be connected via a fastener 24 such as a bolt or a nut so as to be rotatable around the axis of the suction duct 5. This makes it possible to adjust the distance of the suction nozzle 6 with respect to the inner peripheral surface of the sorting cylinder 3 and the position in the circumferential direction, so that the position of the suction nozzle 6 is changed according to the properties of the workpiece. can do. Also, the blowing nozzle 25
Is the circumferential direction of the suction nozzle 6 when the suction nozzle is a rotary type.
Along the outer circumference of the sorting cylinder 3 to follow the movement to
It may be provided so as to be movable in the direction.

[0010]

As described in the foregoing, according to the selection by device of the present invention, in a screening tube which is provided continuously to the outlet end of the cylindrical trommel, Tron Mel oversize in the thoron Mel undersize is sufficiently screened Heavy and hard to release
Since the separation of the mass becomes good and the light weight is sucked from them , the trommel under size is not sucked to the light weight side as in the conventional case, and the sorting accuracy can be improved. In addition, a light-weight material such as a string or a tape does not become entangled with the suction nozzle, so that a smooth sorting can be performed and the suction duct is not damaged. On the other hand, the distance between the suction nozzle and the inner peripheral surface of the sorting cylinder is adjusted by tiltably supporting the suction duct on the duct support device and rotatably attaching the suction nozzle to the suction duct along the inner peripheral surface of the sorting cylinder. In addition, since the position in the circumferential direction can be adjusted, the position of the suction nozzle can be changed according to the properties of the object to be processed. By providing the blowing nozzle so as to be movable in the circumferential direction along the outer peripheral surface of the sorting cylinder, the blowing nozzle can follow the circumferential movement of the suction nozzle. Further, by providing the duct support device so as to be able to advance and retreat with respect to the sorting cylinder, the suction nozzle can be extracted from the sorting cylinder, so that the inspection and cleaning of the inside of the sorting cylinder and the cylindrical trommel can be easily performed. it can.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a sorting device of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a side view of another embodiment of a main part of the sorting apparatus of FIG. 1;

FIG. 4 is a side view of another embodiment of another main part of the sorting apparatus of FIG. 1;

FIG. 5 is a sectional view taken along line VV in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical trommel 2 Through-hole 3 Sorting cylinder 4 Duct support device 5 Suction duct 5a Flange 6 Suction nozzle 6a Flange 15 Tilt plate 16 Bracket 17 Bracket 18 Pin 19 Adjusting bolt 20 Bracket 21 Bracket 22 Pin 23 Slot 24 Fastener 25 Blow-out nozzle

Claims (4)

(57) [Claims] 1. A sorting cylinder connected to an end of a discharge port of a roller-supported cylindrical trommel and having a large number of through holes in a peripheral wall;
A suction duct supported by a duct support device installed outside the sorting cylinder and having a tip inserted into the sorting cylinder, and a suction nozzle attached to the tip of the suction duct and having a suction port facing the inner peripheral surface of the sorting cylinder. , Facing the suction nozzle outside the sorting cylinder
Air is blown out in the suction direction of the suction nozzle
A sorting device comprising a blow-off nozzle . 2. The suction duct is tiltably supported by a duct support device, and a suction nozzle is rotatably mounted on the suction duct along an inner peripheral surface of a sorting cylinder. 1 Symbol placement of the sorting apparatus. Wherein the blow nozzle sorting cylinder sorting device according to claim 1 or 2, wherein the along the outer circumferential surface is provided to be movable in the circumferential direction of the. Wherein said duct supporting device is characterized in that is provided to be retractable relative to the selected cylinder according to claim 1, 2
Or 3 sorting apparatus according.