JP6718740B2 - Bag break sorting device - Google Patents

Description

The present invention relates to a bag-breaking sorting device that destroys a dust bag in which dust is stored to take out the dust from the dust bag and sorts the dust.

A large amount of bagged garbage, that is, garbage bags containing various kinds of garbage, are discharged from general households, businesses, public facilities, and the like. When sorting the dust in the dust bag, a so-called bag breaking process is performed as a pre-step of sorting to mechanically destroy the dust bag and take out various dusts from the dust bag.

The bag-breaking device used for the bag-breaking process of the garbage bag containing the garbage is mounted around one or two horizontal rotary shafts installed between the facing wall surfaces of the vertical rectangular casing. A horizontal axis type device for destroying a dust bag thrown into a casing with a plurality of bag breaking blades is well known (Patent Document 1).

However, the horizontal axis type bag breaking device has the following problems. A conveyor is required to convey the dust discharged from the rectangular casing of the bag-breaking device to the sorting device on the downstream side, and the facility in the dust sorting facility becomes complicated and large-scale, and an increase in the facility cost cannot be avoided. ..

The bag pieces generated by the destruction of the dust bag are mixed with the dust discharged from the rectangular tubular casing. The bag pieces are difficult to remove and remain in the final process, making strict sorting difficult. For this reason, in order to perform a strict sorting process, a bag removing device for taking out a bag piece from the dust is separately required (Patent Document 2), which further complicates the equipment in the dust sorting facility, Increases scale and costs.

By the way, the types of general waste that are representative of garbage are very diverse, such as paper, kitchen waste, fibers, wood chips, metals, plastics, rubbers, glasses, and ceramics.

JP, 2006-61752, A JP, 2011-115786, A

The object of the present invention is to separate a lightweight object such as a bag piece together with a crushed bag without the need for a bag removing device even when a bag removing process is required, and it is possible to separate heavy objects and the like. An object of the present invention is to provide an efficient and economical bag-breaking sorting apparatus that enables efficient multistage sorting processing in combination with the sorting apparatus.

In order to achieve the above object, the bag-breaking sorting apparatus of the present invention is a bag-breaking sorting apparatus that destroys a garbage bag in which garbage is stored, and sorts the garbage generated by the destruction,
An outer casing that is a vertical cylinder and has a lightweight object discharge port that also functions as an exhaust port on its side surface,
A vertical and cylindrical inner casing that is concentrically arranged with a gap in the outer casing and has an opening on the upper end side as a dust bag inlet,
A rotating blade for bag-breaking, which is disposed near the lower end of the inner casing (that is, in or below the lower part) and is concentrically arranged with a gap between the inner casing and destroys the dust bag put in the inner casing,
In order to sort the dust generated due to the destruction of the dust bag by wind force, it is arranged concentrically in the outer casing below the inner casing, and in a cylindrical space formed between the outer casing and the inner casing. And a rotating rotary blade for sorting which forms an upward air flow.

In the bag-breaking device of the present invention, in a state in which the rotating bag-breaking blade and the rotating rotary blade for sorting are rotated about the center line, the dust bag containing the dust is inside the inner casing from the opening on the upper end side thereof. By throwing in, the bag is broken.

That is, the dust bag thrown into the inner casing is destroyed by the bag-breaking rotating blade that rotates downward. The dust taken out from the dust bag falls in the inner casing together with the bag piece generated by the destruction of the dust bag. In the outer casing below the inner casing, the rotating rotary blade for selection forms an upward airflow in the cylindrical space between the outer casing and the inner casing. As a result, the dust including the bag pieces that have fallen under the inner casing is agitated, and the light items represented by the bag pieces in the dust face upward in the cylindrical space between the outer casing and the inner casing. Rises due to the air flow, and is discharged to the outside of the outer casing together with the air flow from the light-weight discharge port that also serves as an exhaust port and opens on the side surface of the outer casing. Other dust falls to the lower side of the outer casing.

Thus, in the bag-breaking device of the present invention, sorting of light-weight items is performed simultaneously with bag-breaking. Further, since the basic structure is a vertical cylindrical rotary type, a vertical cylindrical type, or a vertical cylindrical rotary type other sorting device is arranged below the stacking stage, Efficient sorting processing is also possible.

The outer diameter of the bag-breaking rotary blade is preferably smaller than the inner diameter of the inner casing. By doing so, it becomes easy to form a gap between the inner casing and the blade. The outer diameter of the sorting rotary blade is preferably larger than that of the bag breaking rotary blade, and more preferably larger than that of the inner casing. The larger the outer diameter of the rotary blade for sorting, the easier the formation of an upward airflow in the cylindrical space between the outer casing and the inner casing, and the easier it is for dusts to stay on the blade. The sorting efficiency is improved.

As the structure of the rotary blade for bag-breaking, a structure in which a plurality of bag-breaking blades are attached at intervals in the circumferential direction on the outer peripheral portion of a disk-shaped rotating body is preferable. By using a disc-shaped rotating body as a support for the bag-breaking blade, the disc-shaped rotating body prevents the dust bag thrown into the inner casing from accidentally falling, and dust inside the inner casing is prevented. By increasing the retention time of the bag, the bag breaking efficiency is improved. Further, it is possible to prevent the upward airflow from being formed in the inner casing, and to prevent the dust bag from staying in the inner casing longer than necessary.

Also as a structure of the rotary blade for selection, a structure in which a plurality of blower blades are mounted on the disk-shaped rotary body at intervals in the circumferential direction is preferable. By using the disk-shaped rotating body as the support of the blower blade, dusts are easily retained on the rotating body and the sorting efficiency is improved. In particular, by arranging the plurality of sending blades at positions displaced from the outer peripheral edge of the rotating body toward the center side, a space is formed on the rotating body outside the blowing blades, and it becomes easy for dusts to accumulate there. The sorting efficiency is improved.

In order to increase the bag-breaking efficiency in the inner casing, it is necessary to optimize the retention time of the dust bag in the inner casing and press the dust bag in the inner casing against the bag-breaking blade of the rotating bag-breaking blade. It becomes important. From the former point of view, it is important not to form an upward air flow in the inner casing together with the retention of the dust bag on the bag-breaking rotary blade, and specifically, the air flow that flows out from the outer casing. In order to recirculate from the top into the inner casing and form a downward airflow inside the inner casing, it is recommended to install a circulation duct from the lightweight material discharge port that also serves as the exhaust port of the outer casing to the input port of the inner casing. Good. From the latter point of view, it is preferable that the inner surface of the inner casing be provided with a work holder that projects inward from the inner surface and presses the dust bag downward or inward.

It is preferable that an air pool for decelerating the air flow is provided in the middle of the circulation duct, particularly near the lightweight discharge port, and the lower surface of the air pool is opened as a lightweight discharge port. The air flow that has flowed out from the lightweight discharge port is decelerated by the air pool, so that the lightweight product is efficiently taken out from the air flow.

Further, regarding the outer casing, it is preferable that a lowering portion of the outer casing is further provided with a centering chute that gradually reduces the opening on the lower end side. The centering chute contributes to forming a stable upward airflow in the cylindrical space between the outer casing and the inner casing. In addition, since dust discharged downward from the opening on the lower end side of the outer casing can be brought closer to the center side, a vertical cylindrical shape, especially a vertical cylindrical rotary type, is installed under the outer casing. This is advantageous when another sorting device is directly connected.

Further, regarding the inner casing, it is preferable that the inner casing can be raised from a lower fixed position to an upper retracted position. When clogging of dust occurs in the inner casing or between the outer casing and the inner casing, the clogging can be eliminated by raising the inner casing to the upper retracted position.

The bag-breaking/sorting device of the present invention combines an inner casing in an outer casing, and a rotary blade-type bag-breaking mechanism and a blowing mechanism in combination with the inner casing to sort light-weight items simultaneously with bag-breaking. The bag removing device is not necessary even when bag processing is required. Also, since it is a vertical cylindrical structure that discharges dust downwards, another vertical sorting cylinder or a vertical cylindrical rotating rotary sorting device is arranged in a stack. By doing so, another sorting device can be directly connected. As a result, the structure of the waste sorting facility can be simplified, downsized, and the installation cost can be reduced.

It is a vertical side view of the bag-breaking sorting apparatus which shows one Embodiment of this invention. It is a vertical cross-sectional front view of the same bag breakage sorting apparatus. It is a vertical cross-sectional front view of the principal part of the same bag-breaking sorting apparatus. FIG. 4 is a cross-sectional view of the bag breaking and sorting device, which is a view taken along the line AA in FIG. 3. FIG. 4 is a cross-sectional view of the bag breaking and sorting apparatus, which is a view taken along the line BB in FIG. 3. FIG. 4 is a cross-sectional view of the bag breaking and sorting device, which is a view taken along the line C-C in FIG. 3. FIG. 4 is a cross-sectional view of the bag breaking and sorting device, which is a view taken along the line DD in FIG. 3. FIG. 4 is a cross-sectional view of the bag breaking and sorting device, which is a view taken along the line EE in FIG. 3. FIG. 4 is a cross-sectional view of the bag breaking and sorting apparatus, which is a view taken along the line FF in FIG. 3.

Embodiments of the present invention will be described below with reference to the drawings. The bag-breaking sorting apparatus according to the present embodiment is a garbage collecting apparatus used for sorting and collecting organic waste such as kitchen garbage from general waste such as household garbage, and the bag-breaking unit of the invention is I am using a bag breakage sorter.

As shown in FIGS. 1 and 2, this bag-breaking sorting device is arranged vertically and cylindrically with a center line in the vertical direction, and concentrically below the bag-breaking unit 10. Further, the vertical and cylindrical first sorting unit 20, the vertical and cylindrical second sorting unit 30 concentrically arranged below the first sorting unit 20, and the second sorting unit 20 further. A vertical cylindrical garbage collection unit 40 concentrically arranged on the lower side, a rotation drive mechanism 50 arranged in the central portion of the apparatus from the bag breaking unit 10 to the garbage collection unit 40, and a garbage bag A It is equipped with a charging unit 60 that is combined with the bag breaking unit 10 for charging, and a circulation duct 70 that is combined with the bag breaking unit 10 for improving the function of the bag breaking unit 10. It is structured so as to be supported on 90.

As shown in FIG. 3, the bag-breaking portion 10 includes a vertical cylindrical outer casing 11 whose center line is oriented in the vertical direction, and a vertical cylindrical outer casing 11 which is concentrically arranged inside the outer casing 11 with a predetermined gap. And a cylindrical inner casing 12.

The outer casing 11 has a lightweight object discharge port 11a that also functions as an exhaust port at the uppermost portion on the front side of the apparatus, and has a structure in which the lower end surface is entirely opened as a dust discharge port 11b. The inner casing 12 is a cylindrical body arranged from the uppermost part to the vicinity of the lower part in the outer casing 11, and has a charging port 12a (here, a quadrangle) on the upper end surface as shown in FIG. The inner casing 12 is also movable up and down with respect to the outer casing 11 on the outer peripheral side, and a plurality of jacks 13 mounted on the upper end surface of the outer casing 11 and a motor 14 for synchronously driving these jacks cause the inner casing 12 to move to a fixed position shown in the figure. A reciprocating drive is performed up and down between it and the retracted position above it.

Near the lower end of the inner casing 12, a horizontal disk-shaped rotating blade 15 for bag breaking is concentrically arranged. A horizontal disc-shaped rotary blade 16 for sorting is concentrically arranged below the rotary blade 15 for bag breaking, and more specifically, in the outer casing 11 below the inner casing 12.

As shown in FIG. 5, the bag-breaking rotary blade 15 includes a horizontal disk-shaped rotary member 15a attached to the upper end of the rotary drive mechanism 50 and a plurality of radial members attached to the upper surface of the outer peripheral portion of the rotary member 15a. And a bag breaking blade 15b. The horizontal disk-shaped rotating body 15a is located near the lower end of the inner casing 12 (slightly below the lower end here) and has an outer diameter smaller than the inner diameter of the inner casing 12, whereby the lower end of the inner casing 12 is formed. An annular gap 15c (FIG. 3) is formed between the two parts. Each of the bag-breaking blades 15b is a vertical plate in the radial direction, and is formed here in the shape of a triangular fin whose height gradually increases from the center side toward the outer peripheral side.

As shown in FIG. 6, the sorting rotary blade 16 is a horizontal disk-shaped rotary body 16a that is located below the rotary body 15a and is attached to the rotary drive mechanism 50, and a radial shape on the upper surface of the rotary body 16a. And a plurality of blower blades 16b attached. The rotating body 16a has an outer diameter larger than that of the rotating body 15a, and more specifically has an outer diameter larger than the outer diameter of the inner casing 12 and smaller than the inner diameter of the outer casing 11. An annular gap is formed between them. Each of the blower blades 16b is a vertical plate in the radial direction and forms a predetermined gap with the upper bag-breaking rotary blade 15, and the mounting position is adjustable in the radial direction. Adjustment, the blower blades 16b are installed at positions displaced from the outer peripheral edge of the rotating body 15a toward the center side.

The rotation drive mechanism 50 includes a vertical sleeve-shaped support body 51 fixedly installed in the central portion of the apparatus from the first sorting section 20 to the lower side of the garbage collection section 40, and rotates concentrically within the support body 51. It is provided with a vertically rotatable first rotating shaft 52 and a vertically sleeve-like second rotating shaft 53 concentrically and rotatably fitted and supported on the outside of the support body 51.

The first rotating shaft 52 is for bag breaking and is arranged from inside the inner casing 12 of the bag breaking unit 10 to below the garbage collecting unit 40. The second rotating shaft 53 is for sorting, and is arranged between the first sorting unit 20 and the second sorting unit 30 and below the garbage collecting unit 40. Both of the rotating shafts are projected to the lower side of the garbage collecting section 40, and each projecting section is connected to the motors 54 and 55 as driving machines on both sides arranged at the bottom of the apparatus via a power transmission mechanism. As a result, they are independently rotated.

The horizontal disk-shaped rotating body 15a of the bag-breaking rotary blade 15 is attached to the uppermost portion of the first rotating shaft 52. The rotating body 16a of the sorting rotary blade 16 is located below the rotating body 15a and is attached to the upper part of the first rotating shaft 52.

On the inner surface of the inner casing 12, cylindrical work holders 17 projecting from the inner surface toward the center side are attached at equal intervals in the circumferential direction, and are located below the respective work holders 17 so as to extend from the inner surface. A fin-shaped work holder 18 protruding toward the center is attached. The work holder 18 is arranged in the lowermost portion of the inner casing 12 and is located on the outer peripheral side of the bag breaking blade 15b.

The first sorting unit 20 arranged on the lower side of the bag breaking unit 10 has a flat vertical cylindrical casing 21 having a height lower than the inner diameter, and a centering chute 22 arranged in the uppermost portion of the casing 21. And a horizontal disc-shaped selection table 23 arranged also in the lowermost part of the casing 21 as a bottom plate.

The casing 21 has an inner diameter slightly larger than the inner diameter of the outer casing 11, and the upper surface is entirely opened as a charging port and the lower surface as a first discharging port. A heavy object discharge port 21a as a second discharge port is formed on the side surface of the casing 21, particularly on the front surface. The centering chute 22 in the casing 21 is a member that gradually reduces the opening on the lower end side of the outer casing 11 downward, and here is an inverted trapezoidal shape attached to the lower end of the upper outer casing 11. It is used as a cone member.

The selection table 23 arranged in the lowermost part of the casing 21 has a screen structure having a large number of openings, and here, as shown in FIG. 7, it is a slit table in which a large number of slits are formed and a plurality of fans. It is configured by arranging slit plates 23a having a shape in the circumferential direction. The sorting table 23 is rotatably supported by a lower radial support body 32 described later. A plurality of slits 23b are formed in parallel on each slit plate 23a. The individual slits 23b are open toward the outer peripheral side and are inclined with respect to the radial line of the selection table 23. More specifically, in the rotation direction of the selection table 23 when viewed from the outer peripheral side to the center side. It is inclined.

A discharge scraper 24 is fixedly installed inside the heavy load discharge port 21a. The discharge scraper 24 is located inside the heavy object discharge port 21a, particularly at the downstream side in the rotation direction of the sorting table 23, and leaves a part (space 21b) of the discharge port 21a on the downstream side in the rotation direction of the sorting table 23. Have been installed. The discharge scraper 24 is composed of a vertical plate, and is inclined toward the center side toward the upstream side in the rotation direction of the sorting table 23, so that the sorting table 23 has a right angle to the slit 23b or an angle in the vicinity thereof, particularly in the outer peripheral portion. Cross at.

The second sorting unit 30 arranged further below the first sorting unit 20 has a flat vertical cylindrical casing 31 having a height lower than the inner diameter, and a radial casing arranged in the uppermost portion of the casing 31. A support 32, a horizontal disc-shaped selection table 33 arranged in the lowermost portion of the casing 31, and agitation blades 34a and 34b and a pressure roller 35 arranged as an agitation member on the selection table 33 are provided. There is.

As shown in FIG. 8, the casing 31 has the same inner diameter as the casing 21, and the upper surface is entirely opened as a charging port and the lower surface as a first discharging port. A heavy object discharge port 31a as a second discharge port is formed on the side surface of the casing 21, particularly on the front surface. The support 32 has a radial shape in which a plurality of arms 32a extending in the radial direction are combined, and is rotated in the circumferential direction by being attached to a sleeve-shaped second rotation shaft 53 arranged at the center of the device. The selection table 33 is a fixed table fixed in the lowermost part of the casing 31, and is a perforated table in which a large number of small round holes are formed.

The stirring blades 34a and 34b are vertical plates in the radial direction (see FIG. 1), and the pressing roller 35 is also a horizontal roller in the radial direction. Both of them are arranged alternately in the circumferential direction and are suspended and supported by each arm 32a of the upper radial support body 32. Then, as the support 32 is rotationally driven by the second rotary shaft 53, both of them rotate on the fixed type sorting table 33 together with the upper rotary type sorting table 23 in the same direction and at the same speed. One of the stirring blades 34a is an inner blade which is arranged so as to be displaced toward the inner peripheral side, and the other stirring blade 34b is an outer blade which is arranged so as to be displaced toward the outer peripheral side.

The garbage collection unit 40 arranged further below the second sorting unit 20 has a flat vertical cylindrical casing 41 having an inner diameter smaller than that of the upper first sorting unit 20 and the second sorting unit 30, And a plurality of stirring blades 42 arranged in the casing 41. The casing 41 has a bottomed tubular shape, and has a garbage discharge port 41a on the side surface, especially on the back surface portion. As shown in FIG. 9, the plurality of stirring blades 42 are vertical plates that are displaced in parallel with the radial lines in a parallel translational manner, and by being attached to the second rotating shaft 53 on the center side, The bottom plate is rotated toward the displacement side together with the upper stirring blades 34a and 34b and the pressing roller 35.

As shown in FIGS. 1 and 2, the loading unit 60 combined with the bag crushing unit 10 is a laterally-cylindrical (here, rectangular-tube-shaped) transport duct 61 connected to the loading port 12a of the crushing unit 10, A pair of transfer screws 62, 62 arranged horizontally and in parallel in the transfer duct 61, and a drive motor 63 for rotating the transfer screws 62, 62 in the biting direction shown in FIG. A charging cylinder 64 is connected to the upper surface of one end of the transfer duct 61, and the lower surface of the other end communicates with the lower charging port 12a.

The circulation duct 70 that is combined with the bag breaking unit 10 together with the charging unit 60 is an inverted L-shaped air pipe that is arranged from the front side of the outer casing 11 to the other end of the transport duct 61. The lower end communicates with the lightweight material discharge port 11a in the front portion of the apparatus through an air reservoir 73 which is also a vertical pipe, and the lower end of the air reservoir 73 is opened as a lightweight material outlet 74. The tip of the horizontal pipe portion 72 of the circulation duct 70 communicates with the upper surface of the other end of the transport duct 61 via a vertical pipe 75.

The above is the configuration of the bag-breaking sorting apparatus of the present embodiment. The operation and function of the bag-breaking sorting device are as follows.

During operation of the bag-breaking sorting apparatus, the transport screws 62, 62 in the loading section 60 at the top of the apparatus rotate in the biting direction shown in FIG. 2 (FIG. 2). Further, in the rotation drive mechanism 50 at the center of the device, the solid first rotating shaft 52 arranged inside the fixed sleeve 51 rotates at a high speed at a predetermined rotation speed, and the sleeve arranged outside the fixed sleeve 51. The second rotating shaft 53 is rotated at a low speed at a predetermined rotation speed.

Due to the high-speed rotation of the first rotating shaft 52, the bag-breaking rotary blade 15 and the sorting rotary blade 16 in the bag-breaking unit 10 rotate at a predetermined rotational speed in the same direction at high speed. Further, by the low speed rotation of the second rotating shaft 53, the sorting table 23 in the first sorting unit 20, the stirring blades 34a and 34b and the pressing roller 35 in the second sorting unit 30, and the stirring blade in the garbage collecting unit 40. 42 rotates at a predetermined rotation speed in the same direction at a low speed.

As shown in FIG. 1, when the dust bags A are sequentially loaded from the loading cylinder 64 of the loading unit 60 into the one end of the transport duct 61, the dust bags A move from the one end to the other end in the transport duct 61. Is conveyed to the inner casing 12 through the charging port 12a of the bag breaking unit 10.

Here, the motor 54 that drives the first rotary shaft 52 and the motor 55 that drives the second rotary shaft 53 are arranged at the bottom of the device together with the power transmission mechanism, and are connected to the lower ends of the rotary shafts. The upper end side of each rotary shaft does not project above the bag breaking portion 10. Therefore, the rotating shafts 52, 53, the motors 54, 55, and the power transmission mechanism do not interfere with the loading unit 60 on the upper portion of the apparatus and do not interfere with the dust bag A loaded by the loading unit 10, so that the dust bag A can be smoothly moved. It is possible to guarantee the proper operation.

The dust bag A thrown into the inner casing 12 of the bag-breaking portion 10 falls inside the inner casing 12 and is torn by the bag-breaking blade 15b of the rotating bag-breaking blade 15 that rotates at the bottom. At this time, the rotating body 15a contributes to the bag breaking by retaining the dust bag A on the blade, applying a centrifugal force to the dust bag A, and transporting it toward the bag breaking blade 15b that rotates at a high speed in the peripheral portion.

At the same time, the dust bag A tends to stay in the lower outer periphery of the inner casing 12 due to gravity and centrifugal force. However, the cylindrical work holder 17 attached to the inner surface of the lower portion of the inner casing 12, particularly the lower portion thereof. The downwardly convex arc surface pushes the bag-breaking blade 15b from the upper side to the lower side, and the fin-like shape is attached to the inner surface of the inner casing 12 below the cylindrical work holder 17. The work holder 18 pushes back from the vicinity of the inner surface toward the bag-breaking blade 15b on the center side, so that bag-breaking is efficiently performed.

The debris taken out of the debris bag A due to the bag smashing, through the annular gap 15c (FIG. 3) formed between the inner casing 12 and the inner rotating body 15a, together with the bag piece, inside the lower portion of the outer casing 11. To fall in sequence. At this time, in the lower part of the outer casing 11, the blower blades 16b of the rotary blade 16 for selection rotate at high speed together with the disc-shaped rotating body 16a, thereby stirring the dusts on the rotating body 16a and at the same time the outer casing 11 An upward air flow B, particularly a swirl flow, is formed between the inner casing 12 and the inner casing 12. The air flow B rises while swirling between the outer casing 11 and the inner casing 12, and is discharged from the lightweight material discharge port 11a that also serves as an exhaust port. In this process, the dust collected from the dust bag A is discharged. Among them, the light-weight item C, mainly a bag piece caused by the bag breakage, is discharged to the outside of the outer casing 11 through the light-weight item discharge port 11a.

The lightweight material C discharged from the lightweight material discharge port 11a is separated from the air flow B by being decelerated by the air reservoir 73, and is discharged downward. The air flow B separated from the lightweight object C passes through the circulation duct 70, further passes through the other end of the transport duct 61 and returns to the bag breaking unit 10, and forms a downward air flow B in the inner casing 12. The downward airflow B in the inner casing 12 contributes to the formation of the upward airflow B between the outer casing 11 and the inner casing 12. In addition, exhaust circulation by the circulation duct 70 suppresses exhaust to the outside of the device and odor, thereby improving the environment. The horizontal disk-shaped rotating bodies 15a and 16a also prevent the formation of the upward airflow B in the inner casing 12 and contribute to the formation of the downward airflow B here, so that the breakage occurs. It contributes to the improvement of bag efficiency and the sorting efficiency of the lightweight items C.

The plurality of blower blades 16b can also be adjusted in mounting position in the radial direction, and not only the optimum position for forming the air flow B is selected by the adjustment, but also the outer peripheral edge of the rotating body 16a is moved toward the center side. By being arranged at the displaced position, a space is formed on the rotating body 16a on the outer peripheral side of the blower blade 16b. This space facilitates the retention of dust and improves the efficiency of dust sorting.

When the inner bag 12 is clogged with the dust bag A, the inner bag 12 is lifted from a fixed position in the drawing to an upper retracted position to clear the clog.

Thus, in the bag-breaking unit 10, the bag-breaking process of the dust bag A is efficiently performed, and at the same time, the lightweight articles C are efficiently sorted and discharged.

The dust, which is taken out from the dust bag A and has finished sorting the lightweight items C, that is, mainly the heavy items, passes through the annular gap formed between the outer casing 11 and the rotating body 16a, and the first sorting unit 20. Flows in. At this time, the dusts pass inside the centering chute 22. The centering chute 22 moves the dusts toward the center side and places them on the sorting table 23 in the first sorting unit 20. The centering chute 22 blocks the formation of the downward airflow B and contributes to the formation of the stable upward airflow B between the outer casing 11 and the inner casing 12.

The selection table 23 is a slit table and rotates at a low speed. The dust thrown into the vicinity of the central portion of the sorting table 23 moves to the outer peripheral side due to the centrifugal force caused by the rotation. Since the slits 23b formed on the sorting table 23 are basically in the radial direction and have a structure that is open to the outer peripheral side, small dusts (metal pieces, metal pieces, A piece of wood, a piece of resin, garbage, etc., that is, the small heavy object D2 is dropped under the sorting table 23. Further, the large-sized wastes (wooden blocks, resin blocks, cloths, papers, etc.) remaining on the sorting table 23, that is, the large-sized heavy objects D1, are finally guided to the discharge scraper 24 and discharged from the heavy-weight discharge port. 21a is discharged from the apparatus.

Since the discharge scraper 24 intersects the slit 23b at a right angle or an angle in the vicinity thereof in the outer peripheral portion, the small heavy object D2 is dropped from the slit 23b and the large heavy object D1 is discharged from the heavy object outlet 21a. Facilitate. The discharge scraper 24 is also disposed on the downstream side of the sorting table 23 in the rotation direction, leaving a part (the space 21b) of the discharge port 21a, so that the large heavy object D1 on the sorting table 23 follows the discharge scraper 24. When it moves to the outer peripheral side of the selection table 23, it is difficult to contact the downstream side edge of the discharge port 21a, so that it easily falls from the discharge port 21a, and the large heavy object D1 is accumulated on the upstream side of the discharge scraper 24. It can be prevented. Further, even when the large heavy object D1 is caught on the outer peripheral portion of the selection table 23 and accumulates on the upstream side of the discharge scraper 24, the large heavy object D1 is allowed to enter the casing 21 again from the space 21b. This effectively prevents clogging of the discharge scraper 24 on the upstream side.

The small heavy object D2 that has dropped to the lower side of the sorting table 23 drops onto the sorting table 33 in the second sorting unit 30. On the selection table 33, the stirring blades 34a and 34b and the pressing roller 35 which are radially arranged are rotating. By the rotation of the stirring blades 34a and 34b, the small heavy object D2 on the selection table 33 is rotationally agitated and moved to the outer peripheral side, and in this process, the small heavy object D2 is crushed by the pressing roller 35, so that the small heavy object D2 of Since E is a viscous substance, it efficiently drops to the lower side of the selection table 33, and solids (metal pieces, wood pieces, resin pieces, etc.) remain on the selection table 33 and are discharged from the heavy object discharge port 31a to the outside of the apparatus. To be done. In addition, the stirring blades 34a, 34b have a structure in which the inner peripheral portion and the outer peripheral portion are combined, and the former contributes mainly to stirring and the latter mainly contributes to discharge, so that the selection efficiency is improved.

The raw garbage E dropped to the lower side of the sorting table 33 is collected in the raw garbage collecting section 40, and is gradually moved to the outer peripheral side by the rotation of the stirring blade 42, and finally from the raw garbage discharge port 41a to the outside of the apparatus. Is discharged to and collected.

Thus, the bag-breaking sorting apparatus of the present embodiment efficiently sorts and collects organic waste such as raw waste from the packed domestic waste such as household waste.

In the bag-breaking sorting apparatus according to the present embodiment, the bag-breaking and the sorting are independently performed by different mechanisms (the bag-breaking unit 10 and the sorting units 20 and 30), so that the respective efficiency is high. Since the apparatus is a vertical type, and the bag breaking unit 10 and the sorting units 20 and 30 are directly connected to each other, and gravity is used to convey dusts, the processing efficiency is further improved. Since the device is a vertical type and the rotary drive mechanism 50 is centrally arranged in the central part of the device, the device can be downsized.

The bag breaking unit 10 not only breaks the bag but also sorts the lightweight items C, so that the burden on the sorting units 20 and 30 is reduced, and as a result, the sorting efficiency is improved. Since bag breaking is performed by high speed rotation of the bag breaking blade 15b, the efficiency is high. Since the rotary blade 16 for sorting, in which the rotary drive mechanism 50 is shared with the rotary blade 15 for bag breaking, is used for the sorting of the lightweight objects C, the efficiency of the sorting is high, and the size of the apparatus and the structure of the apparatus are combined. Simplification of is realized.

In the bag-breaking portion 10, the outer casing 11 and the inner casing 12 are combined, and the inside of the inner casing 12 serves as a bag-breaking space, and the space between the outer casing 11 and the inner casing 12 serves as a carry-out space for the lightweight object C. That is, bag breaking and transportation are performed in independent spaces. In addition, a downward air flow B is formed in the bag breaking space, and an upward air flow B is formed in the carry-out space. From these points as well, the bag breaking efficiency and the sorting efficiency of the lightweight items C are improved.

In addition, in the bag-breaking unit 10, the bag-breaking rotary blade 15 performs the bag-breaking independently, and the light-weight object B is selected by the sorting rotary blade 16 independently. Become. The rotary blade 15 for bag breaking uses the rotating body 15a for supporting the bag breaking blade 15b, and the rotary blade 16 for sorting uses the rotating body 16a for supporting the blower blade 16b. These rotating bodies 15a, 16a are horizontal disc-shaped and prevent the upward air flow B from being formed in the inner casing 12. Therefore, the rotating bodies 15a, 16a also have the outer casing 11 and the inner casing. It contributes to the formation of an upward air flow B between the two.

For the formation of the upward air flow B between the outer casing 11 and the inner casing 12, a circulation duct arranged from the lightweight discharge port 11a also serving as the exhaust port of the outer casing 11 to the input port 12a of the inner casing 12. It is as described above that 70 contributes.

On the other hand, in the sorting of heavy objects, since the first sorting section 20 and the second sorting section 30 perform the processing in two stages, the sorting efficiency is particularly high. Nevertheless, the respective casings 21 and 31 are directly connected to each other in the vertical direction in a flat cylindrical shape, and the rotary support body 32 supports the driving of the sorting table 23 in the first sorting unit 20 and the second sorting unit. In 30, the supporting and driving of the stirring blades 34a and 34b as the stirring members and the pressing roller 35 are respectively controlled, so that the enlargement of the apparatus is effectively suppressed.

In addition, in the first sorting section 20, since the sorting table 23 is a rotary slit table and the individual slits 23b are opened to the outer peripheral side, the sorting efficiency of the large heavy object D1 is high. Moreover, since the individual slits 23b are inclined in the rotation direction of the sorting table 23 with respect to the radial line when the center side is viewed from the outer peripheral side, the discharge scraper 24 is formed with the slits 23b in the outer peripheral portion of the sorting table 23. They intersect at right angles or angles near them. This also improves the sorting efficiency of the large heavy object D1.

In addition, in the second sorting section 30, the pressing blades 35 are used as stirring members in addition to the stirring blades 34a and 34b, and the dust is pressed on the sorting table 33 while being stirred. The dust E is efficiently selected. Moreover, the stirring blades 34a and 34b are a combination of the inner blade for the inner peripheral portion and the outer blade for the outer peripheral portion, which also contributes to the improvement of the selection efficiency.

The bag-breaking sorting device according to the present embodiment is a garbage collecting device, but the vertical tubular sorting units 20 and 30 are concentrically arranged under the vertical tubular bag-breaking unit 10, and the respective rotary shafts are arranged. The bag-breaking sorting structure in which the (first rotating shaft 52 and the second rotating shaft 53) are coaxially arranged in the center of the apparatus is, for example, a mixture of plastic container packaging waste and cans, bottles, PET bottles, etc. stipulated in the Container and Packaging Recycling Law. It can also be applied as a sorting device for garbage, such as garbage collected at stations and trains, a heavy and light sorting device, and a sorting device for unsuitable substances and contraindicated substances.

Further, the configuration of the bag-breaking portion 10 in the bag-breaking sorting apparatus of the present embodiment, that is, a vertical tubular outer casing 11 and an inner casing 12 are combined, and a bag-breaking rotary blade 15 and a sorting rotary blade 16 are combined therewith. In combination, the bag-breaking structure that uses wind force to selectively remove the bag-breaking bag and the light-weight object C is not suitable for a heavy-weight sorting device for plastic container-wrapping waste and paper container-wrapping waste specified in the Container and Packaging Recycling Law. It is also applicable as a device for removing things and contraindications.

Similarly, the configuration of the sorting units 20 and 30 in the bag-breaking sorting apparatus of the present embodiment, that is, the vertical tubular casings 21 and 31 together with the screening tables 23 and 33 having the screen structure also serving as the bottom plates thereof are vertically arranged in a plurality of stages. The sorting structure in which the agitating members 34a and 34b on the sorting table 23 and the sorting table 33 are rotary type and is driven to rotate by a common rotating shaft 53 is, for example, made of plastic defined in the Container and Packaging Recycling Law. It is also applicable as a container/packaging waste, mixed waste such as cans/bottles/PET bottles, a large/small sorting device for garbage collected at stations and trains, and a sorting device for unsuitable substances and contraindicated substances.

DESCRIPTION OF SYMBOLS 10 Bag-breaking part 11 Outer casing 11a Light-weight object discharge port 11b Falling-out discharge port 12 Inner casing 12a Input port 13 Jack 14 Motor 15 Rotating blade for bag-breaking 15a Rotating body 15b Broken-bag blade 16 Rotating blade for sorting 16a Rotating body 16b Blower blade 17, 18 Work holder 20 First sorting section 21 Casing 21a Heavy material discharge port 21b Space 22 Centering chute 23 Sorting table 23a Slit plate 23b Slit 24 Discharge scraper 30 Second sorting section 31 Casing 31a Heavy material discharge port 32 Support 32 Arm 33 Sorting table 34a, 34b Stirring blade 35 Pressing roller 40 Raw dust collecting section 41 Casing 41a Raw dust discharge port 42 Stirring blade 50 Rotation drive mechanism 51 Support 52 First rotating shaft 53 Second rotating shaft 54, 55 Motor (drive) Machine)
60 input section 61 transfer duct 62 transfer screw 63 drive motor 64 drive cylinder 70 circulation duct 71 vertical tube section 72 horizontal tube section 73 air trap 74 light material outlet 75 vertical tube 90 mount A garbage bag B air flow C lightweight material D1 large size Heavy goods D2 Small heavy goods E Garbage

Claims (9)

A bag-breaking sorting device for destroying a garbage bag in which garbage is stored and for sorting the garbage generated by the destruction,
An outer casing that is a vertical cylinder and has a lightweight object discharge port that also functions as an exhaust port on its side surface,
A vertical and cylindrical inner casing that is concentrically arranged with a gap in the outer casing and has an opening on the upper end side as a dust bag inlet,
A rotating blade for bag breaking that is arranged concentrically with a gap between the inner casing and the lower end of the inner casing, and destroys the dust bag put in the inner casing.
In order to sort the dust generated due to the destruction of the dust bag by wind force, it is arranged concentrically in the outer casing below the inner casing, and in a cylindrical space formed between the outer casing and the inner casing. A bag-breaking sorting device, comprising: a sorting rotary blade that forms an upward air flow. The bag-breaking sorting device according to claim 1, wherein an outer diameter of the bag-breaking rotating blade is smaller than an inner diameter of the inner casing, and an outer diameter of the selecting rotating blade is smaller than an outer diameter of the bag-breaking rotating blade. A large bag-breaking sorting device. The bag-breaking selection device according to claim 1 or 2, wherein the bag-breaking rotary blade has a structure in which a plurality of bag-breaking blades are attached to the outer peripheral portion of a disk-shaped rotating body at intervals in the circumferential direction. Bag sorter. In the bag breaking sorting apparatus according to any one of claims 1 to 3, the rotary blade for sorting has a structure in which a plurality of blower blades are mounted on a disk-shaped rotating body at intervals in the circumferential direction, and A bag-breaking sorting device in which the plurality of blower blades are adjustable in mounting position in the radial direction. The bag breaking and sorting apparatus according to any one of claims 1 to 4, wherein the airflow flowing out of the outer casing is circulated from the upper part into the inner casing to form a downward airflow in the inner casing. A bag breakage sorting device equipped with a circulation duct from the lightweight material discharge port to the inner casing input port. The bag-breaking sorting apparatus according to claim 5, wherein an air pool for decelerating an air flow is provided in the middle of the circulation duct, and a lower surface of the air pool is opened as a lightweight material outlet. The bag-breaking sorting device according to any one of claims 1 to 6, wherein an inner surface of the inner casing is provided with a work holder that projects inward from the inner surface and presses the dust bag downward or inward. The bag-breaking sorting apparatus according to any one of claims 1 to 7, wherein the outer casing has a lower end portion provided with a centering chute that gradually reduces the inner diameter of a dust discharge port that opens at the lower end surface of the outer casing. Crushed bag sorting device. The bag-breaking sorting apparatus according to any one of claims 1 to 8, wherein the inner casing is configured to be able to rise from a lower fixed position to an upper retracted position.

Images