WO2024128096A1 - Compression molding device for waste - Google Patents

Compression molding device for waste Download PDF

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Publication number
WO2024128096A1
WO2024128096A1 PCT/JP2023/043662 JP2023043662W WO2024128096A1 WO 2024128096 A1 WO2024128096 A1 WO 2024128096A1 JP 2023043662 W JP2023043662 W JP 2023043662W WO 2024128096 A1 WO2024128096 A1 WO 2024128096A1
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Prior art keywords
screw
waste
casing
protrusions
compression molding
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PCT/JP2023/043662
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French (fr)
Japanese (ja)
Inventor
翔一 大瀧
繁則 井上
史樹 寳正
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株式会社クボタ
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Publication of WO2024128096A1 publication Critical patent/WO2024128096A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/28—Presses specially adapted for particular purposes for forming shaped articles

Definitions

  • the present invention relates to a compression molding device that compresses and molds waste materials, such as waste plastics.
  • a conventional compression molding device of this type is described in Japanese Patent Publication No. 7-53374.
  • the compression molding device has a truncated cone-shaped casing that tapers towards the bottom, an inlet for feeding waste into the casing from above, a discharge outlet for discharging the waste compressed inside the casing from the bottom of the casing, a rotatable screw that compresses the waste fed into the casing from the inlet while sending it towards the discharge outlet, and an electric motor that rotates the screw.
  • a protrusion is provided on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw.
  • the ridges are thin, rod-like members that are elongated in the vertical direction.
  • a gap is formed between the outer periphery of the screw and the ridges so that the screw does not interfere with the ridges.
  • waste material is fed into the casing through an inlet, compressed as it is sent downward by the rotating screw, and formed into a rod-like shape before being discharged through a discharge outlet. At this time, the waste is caught on the ridges, thereby preventing the waste from rotating together with the screw.
  • An object of the present invention is to provide a waste compression molding apparatus capable of preventing damage to the screw, motor, etc.
  • the present invention is a waste compression molding device that compresses waste introduced into a casing with a screw, molds the waste, and discharges the waste.
  • the waste treatment device has a casing, an input section for inputting waste into the casing, a discharge section for discharging the compressed waste from inside the casing, and a rotatable screw for compressing the waste input into the casing from the input section while sending it toward the discharge section,
  • a plurality of protrusions are provided on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw;
  • the protrusions are arranged intermittently at intervals in the axial direction of the screw, A passage through which waste can pass is formed between adjacent protrusions in the axial direction of the screw.
  • waste material is fed into the casing from the feed section, compressed by the rotating screw as it is sent toward the discharge section, and formed into a specified shape before being discharged from the discharge section.
  • the waste gets caught on the protrusions, preventing the waste from rotating along with the screw. Also, even if foreign matter such as metal lumps mixed in the waste comes close to being caught between the screw and the protrusions while the screw is rotating, it passes through the passages between the adjacent protrusions and is discharged from the discharge section together with the compressed and molded waste.
  • the protrusion is inclined with respect to the rotation axis of the screw so that the first end facing the rotation direction of the screw is positioned closer to the discharge section than the second end facing in the opposite direction to the rotation direction of the screw.
  • the first end of one protrusion and the second end of the other protrusion that are adjacent to each other in the direction of the rotation axis of the screw overlap when viewed from the direction of rotation of the screw.
  • the waste material will hit one of the protrusions when passing through the passage between adjacent protrusions. This reliably prevents the waste material from rotating with the screw, and the inclination of the protrusions ensures that the waste material is guided toward the discharge section.
  • the discharge portion is located on a straight line passing through the screw's rotation axis and the protrusion when viewed from the direction of the screw's rotation axis.
  • the protrusions are disposed at a plurality of positions within the casing in the rotation direction of the screw. This can reliably prevent the waste from rotating together with the screw.
  • the present invention can prevent foreign matter mixed in the waste from getting caught between the screw and the protrusion. This prevents excessive load from being placed on the screw, and prevents damage to the screw and the rotary drive device, such as the electric motor that rotates the screw.
  • FIG. 1 is a cross-sectional view of a compression molding apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a partially enlarged cross-sectional view of the compression molding device.
  • 3 is a view taken along the line XX in FIG. 2.
  • FIG. 4 is an enlarged view of a protrusion portion of the compression molding device.
  • FIG. 11 is a cross-sectional view of a compression molding device according to a second embodiment of the present invention, as viewed from the direction of the rotation axis of a screw.
  • FIG. 11 is a cross-sectional view of a compression molding apparatus according to a third embodiment of the present invention.
  • FIG. 2 is a partially enlarged cross-sectional view of the compression molding device.
  • FIG. 2 is a partially enlarged plan view of the compression molding device.
  • FIG. 13 is an enlarged view of a protrusion of a compression molding device according to a fourth embodiment of the present invention.
  • FIG. 13 is an enlarged view of a protrusion of a compression molding device according to a fifth embodiment of the present invention.
  • FIG. 13 is a cross-sectional view of a compression molding apparatus according to a sixth embodiment of the present invention.
  • FIG. 13 is a cross-sectional view of a compression molding apparatus according to a seventh embodiment of the present invention.
  • a compression molding device 1 compresses plastic waste 3 (an example of waste) fed into a casing 2 with a screw 4, molds it, and discharges it.
  • the compression molding device 1 has a casing 2, an input section 7 for inputting the plastic waste 3 into the casing 2, a discharge section 8 for discharging the plastic waste 3 compressed in the casing 2, and a rotatable screw 4 for compressing the plastic waste 3 fed into the casing 2 from the input section 7 while sending it toward the discharge section 8.
  • the input section 7 has a screw conveyor 11 (an example of a supply device) that supplies the plastic waste 3 input from the input port 10 into the casing 2.
  • the screw conveyor 11 has a transport screw 12 that transports the plastic waste 3 from the input port 10 into the casing 2, and is attached to the upper part of the casing 2.
  • the casing 2 has a cylindrical body 14 , a top plate 15 provided at the upper end of the body 14 , and a bottom plate 16 provided at the lower end of the body 14 .
  • the discharge section 8 has a discharge port 19 formed in the bottom plate 16 and a discharge nozzle 20 that faces downward from the bottom plate 16.
  • the discharge port 19 opens to the inside of the casing 2 and to the inside of the upper end of the discharge nozzle 20.
  • the screw 4 has a rotating shaft 23 that passes vertically through the casing 2, and a helical screw blade 24 provided on the outer periphery of the rotating shaft 23.
  • An electric motor 25 (an example of a rotary drive device) that rotates the rotating shaft 23 is provided on the top plate 15.
  • the pitch of the screw blade 24 may be constant, or may be reduced toward the discharge section 8, i.e., downward.
  • the lower part of the rotating shaft 23 penetrates the bottom plate 16 and protrudes downward from the casing 2.
  • a cutting rod 28 is provided at the lower end of the rotating shaft 23.
  • the cutting rod 28 is freely rotatable together with the rotating shaft 23 below the discharge nozzle 20.
  • the inner circumferential surface of the casing 2 is provided with a number of protrusions 31 that prevent the plastic waste 3 from rotating together with the screw 4.
  • These protrusions 31 are attached to the inner circumferential surface of the body 14 and are arranged intermittently at intervals in the vertical direction 32 (one example of the direction of the rotation axis 36 of the screw 4) as shown in FIG. 4, and are provided at a number of locations within the casing 2 in the rotation direction 33 of the screw 4 as shown in FIG. 3.
  • the protrusions 31 are arranged at six locations every 60° in the rotation direction 33 of the screw 4.
  • the protrusion 31 protrudes from the inner peripheral surface of the body 14 inward in the radial direction of the body 14. A gap is formed between the protrusion 31 and the outer peripheral edge of the screw blade 24 so that the screw blade 24 does not interfere with the protrusion 31.
  • a passage 37 is formed between adjacent protrusions 31 in the vertical direction 32.
  • the plastic waste 3 can pass through the passage 37 in the rotation direction 33 of the screw 4.
  • the protrusions 31 are inclined with respect to the rotation axis 36 of the screw 4 so that the first end 31a is located further toward the discharge section 8 (downward) than the second end 31b.
  • the first end 31a of the protrusions 31 is the end facing the rotation direction 33 of the screw 4.
  • the second end 31b of the protrusions 31 is the end facing the opposite direction 34 to the rotation direction 33 of the screw 4.
  • the protrusions 31 are inclined so that the first end 31a faces downward and the second end 31b faces upward.
  • the first end 31a of the upper (one) protrusion 31 and the second end 31b of the lower (other) protrusion 31 that are adjacent to each other in the vertical direction 32 overlap in an overlap region D when viewed from the rotation direction 33 of the screw 4.
  • the screw conveyor 11 is operated, the screw 4 is rotated by the electric motor 25, and the plastic waste 3 is fed into the inlet 10.
  • the fed plastic waste 3 is supplied from the inlet 10 into the casing 2 by the screw conveyor 11, and compressed while being sent downward by the rotating screw 4, causing the temperature to rise and soften, and the plastic waste 3 is formed into pellets (cylindrical) and discharged downward from the discharge nozzle 20.
  • the cutting rod 28, which rotates together with the screw 4 cuts the plastic waste 3 discharged from the discharge nozzle 20 to a predetermined length.
  • This allows the plastic waste 3 to be molded into solid fuel of a predetermined shape (e.g., pellet-like).
  • the solid fuel obtained from the plastic waste 3 in this way can be used, for example, as fuel for a melting furnace, etc.
  • the protrusions 31 overlap in the overlapping region D when viewed from the rotation direction 33 of the screw 4. Therefore, when the plastic waste 3 passes through the passage 37 between the protrusions 31, it is sure to hit either the upper or lower protrusion 31. This ensures that the plastic waste 3 is prevented from rotating together with the screw 4, and is reliably guided by the inclined underside of the protrusion 31 in the direction of the discharge section 8, i.e., downward.
  • the discharge port 19 exists on a virtual radial line 39 passing through the rotation axis 36 of the screw 4 and the protrusion portion 31 when viewed from the vertical direction 32 (an example of the direction of the rotation axis 36 of the screw 4).
  • one set of exhaust port 19 and exhaust nozzle 20 is provided on the bottom plate 16 of the casing 2, but multiple sets of exhaust port 19 and exhaust nozzle 20 may be provided on the bottom plate 16.
  • the screw blades 24 are provided in the vertical direction 32 over the entire length of the body 14 from the upper end (the end closer to the input section 7) to the lower end (the end closer to the discharge section 8).
  • the multiple protrusions 31 are arranged over the range in which the screw blades 24 are provided in the vertical direction 32.
  • the screw blades 24 may be provided only partially in the lower part of the body 14.
  • the multiple protrusions 31 are arranged only in the range in which the screw blades 24 are provided in the vertical direction 32 (i.e., the lower part of the body 14).
  • the plastic waste 3 is compressed by the screw 4 to raise the temperature of the plastic waste 3 and soften it, but if the temperature of the plastic waste 3 does not rise sufficiently, a heating device may be provided on the bottom plate 16 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
  • the casing 2 has a cylindrical body 14, a top plate 15 provided at the upper end of the body 14, and a bottom body portion 51 provided at the lower end of the body 14.
  • the bottom body portion 51 is a truncated cone-shaped cylinder whose diameter decreases toward the bottom.
  • the lower part of the body 14 communicates with the upper part of the bottom body portion 51.
  • the discharge portion 8 has a discharge port 19 formed at the lower end of the bottom body portion 51.
  • the screw 4 has a rotating shaft 23 that is arranged in the casing 2 and extends in the vertical direction 32, and a spiral screw blade 53 that is arranged on the lower outer periphery of the rotating shaft 23.
  • the screw blade 53 is housed in the bottom body 51.
  • a cutting device 56 is provided below the casing 2 to cut the plastic waste 3 discharged from the discharge port 19 to a predetermined length.
  • the cutting device 56 has a rotating shaft 57 and a cutting rod 28 attached to the rotating shaft 57.
  • a plurality of protrusions 31 are attached to the inner peripheral surface of the bottom body 51. These protrusions 31 are arranged intermittently at intervals in the up-down direction 32 as shown in Fig. 7, and are arranged at four locations, for example, at 90° intervals in the rotation direction 33 of the screw 4 as shown in Fig. 8.
  • the shape of the protrusions 31 and the relative positions of the protrusions 31 are similar to those of the first embodiment shown in FIG.
  • the plastic waste 3 is fed into the casing 2 through the inlet 10, and is compressed by the screw blades 53 rotating inside the bottom body 51, causing the temperature to rise and the plastic waste to soften.
  • the plastic waste is then formed into pellets (cylindrical) and discharged downward through the outlet 19.
  • the plastic waste 3 is molded into a solid fuel of a predetermined shape (e.g., pellet-like).
  • the plastic waste 3 compressed and molded in this way is used as solid fuel, for example as fuel for a melting furnace, etc.
  • the plastic waste 3 is compressed by the screw 4 to raise the temperature of the plastic waste 3 and soften it, but if the temperature of the plastic waste 3 does not rise sufficiently, a heating device may be provided in the bottom body 51 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
  • the protrusion 31 is inclined, but in the fourth embodiment, as shown in FIG. 9, the protrusion 31 may be arranged not to be inclined, but so that its longitudinal direction is in the same direction as the rotation axis 36 of the screw 4 (i.e., the up-down direction 32).
  • the fifth embodiment is a modification of the fourth embodiment, and as shown in Fig. 10, a plurality of protrusions 31, 61 are arranged in a staggered pattern. That is, a plurality of other protrusions 61 arranged in a row are provided next to a plurality of protrusions 31 arranged in a row.
  • the protrusions 31 and the other protrusions 61 are arranged in two rows parallel to the rotation axis 36 of the screw 4 with a predetermined interval 65 between them.
  • a passage 37 is formed between adjacent protrusions 31 in the vertical direction 32.
  • Another protrusion 61 intersects with an imaginary straight line in the rotational direction 33 that passes through the passage 37, and is positioned so as to overlap the passage 37 when viewed from the rotational direction 33 of the screw 4.
  • a vertical compression molding apparatus 1 in which the rotation axis 36 of the screw 4 is oriented in the vertical direction 32 is given.
  • the direction of the rotation axis 36 of the screw 4 is not limited to the vertical direction 32.
  • a horizontal compression molding apparatus 1 in which the rotation axis 36 of the screw 4 is oriented in the horizontal direction may be used.
  • This horizontal compression molding device 1 has a casing 2, an input section 7 for inputting plastic waste 3 into the casing 2, a discharge section 8 for discharging the compressed plastic waste 3 from inside the casing 2, and a rotatable screw 4 that compresses the plastic waste 3 input into the casing 2 from the input section 7 while sending it toward the discharge section 8.
  • the input section 7 has an input port 10.
  • the casing 2 also has a cylindrical body 14, a front wall portion 70 that closes the front end of the body 14, and a rear lid portion 71 that closes the rear end of the body 14.
  • the discharge section 8 has a discharge port 19 formed in the rear lid section 71 and a discharge nozzle 20 attached horizontally to the rear lid section 71.
  • a number of protrusions 31 are provided on the inner peripheral surface of the body 14.
  • the screw 4 is provided in the body 14 in the front-rear direction 35 over its entire length from the front end (the end closer to the input portion 7) to the rear end (the end closer to the discharge portion 8).
  • the multiple protrusions 31 are arranged in the front-rear direction 35 over the range in which the screw 4 is provided.
  • the shape of the protrusions 31 and the relative positions of the protrusions 31 are similar to those of the first embodiment shown in FIG. This provides the same effects and advantages as the first embodiment.
  • the shape of the protrusions 31 and the relative positions of the protrusions 31 are not limited to those of the first embodiment shown in FIG. 4, but may be the same as those of the fourth embodiment shown in FIG. 9 or the fifth embodiment shown in FIG. 10.
  • the discharge port 19 may be configured to be located on a virtual radial line 39 that passes through the rotation axis 36 of the screw 4 and the protrusion 31 when viewed from the front-rear direction 35 (one example of the direction of the rotation axis 36 of the screw 4).
  • the discharge port 19 may be configured to be located at a position that is off the virtual line 39.
  • one set of exhaust port 19 and exhaust nozzle 20 is provided on the rear cover portion 71 of the casing 2, but multiple sets of exhaust port 19 and exhaust nozzle 20 may be provided on the rear cover portion 71.
  • the screw blades 24 are provided in the front-rear direction 35 over the entire length from the front end (the end closer to the input section 7) to the rear end (the end closer to the discharge section 8) in the body 14.
  • the multiple protrusions 31 are arranged over the range in which the screw blades 24 are provided in the front-rear direction 35.
  • the screw blades 24 may be provided partially only at the rear part of the body 14.
  • the multiple protrusions 31 are arranged only in the range in which the screw blades 24 are provided in the front-rear direction 35 (i.e., the rear part of the body 14).
  • the plastic waste 3 is compressed by the screw 4 to raise the temperature and soften the plastic waste 3.
  • a heating device may be provided on the rear cover 71 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
  • the casing 2 has a cylindrical body 14, a front wall portion 70 that closes the front end of the body 14, and a rear body portion 74 that is provided at the rear end of the body 14.
  • the rear body portion 74 is a truncated cone-shaped cylinder whose diameter decreases toward the rear.
  • the rear portion of the fuselage 14 communicates with the front portion of the rear portion 74.
  • the discharge section 8 has a discharge port 19 formed at the rear end of the rear portion 74.
  • the screw 4 has a horizontal rotating shaft 23 provided inside the casing 2 and a spiral screw blade 53 provided on the outer periphery of the rear part of the rotating shaft 23.
  • the screw blade 53 is housed inside the rear body part 74.
  • a cutting device 56 is provided at the rear of the casing 2 to cut the plastic waste 3 discharged from the discharge port 19 to a predetermined length.
  • the cutting device 56 has a rotating shaft 57 and a cutting rod 28 attached to the rotating shaft 57.
  • protrusions 31 are attached to the inner peripheral surface of the rear body 74. These protrusions 31 are arranged at intervals in the front-to-rear direction 35, and are arranged at four locations, for example, at 90° intervals in the rotation direction 33 of the screw 4.
  • the shape of the protrusions 31 and the relative positions of the protrusions 31 are the same as those in the first embodiment shown in FIG. 4, but may also be the same as those in the fourth embodiment shown in FIG. 9 or the fifth embodiment shown in FIG. 10.
  • plastic waste 3 is fed into the compression molding device 1 as an example of waste, but this is not limited to plastic waste 3, and any waste that can be molded by compression may be used.
  • any waste that can be molded by compression may be used.
  • wood chips, food waste, and even a mixture of wood chips and food waste that contains plastic may be used.
  • a waste compression molding device that compresses waste fed into a casing with a screw, molds the waste, and discharges it, the device having a casing, an input section for feeding the waste into the casing, a discharge section for discharging the compressed waste from within the casing, and a rotatable screw that compresses the waste fed into the casing from the input section while sending it towards the discharge section, the device having a plurality of protrusions on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw, the plurality of protrusions being intermittently arranged at intervals in the direction of the rotation axis of the screw, and a passageway through which the waste can pass is formed between adjacent protrusions in the direction of the rotation axis of the screw.
  • a waste compression molding device as described in (1) in which at least one of the multiple protrusions is inclined with respect to the rotation axis of the screw so that a first end facing the rotation direction of the screw is positioned closer to the discharge section than a second end facing in the opposite direction to the rotation direction of the screw.
  • a waste compression molding device as described in (2) in which a first end of one protrusion and a second end of the other protrusion that are adjacent to each other in the direction of the rotation axis of the screw overlap when viewed from the direction of rotation of the screw.
  • a waste compression molding device according to any one of (1) to (3), in which the discharge section is located on a straight line passing through the rotation axis of the screw and at least one of the multiple protrusions when viewed from the direction of the rotation axis of the screw.
  • a waste compression molding device according to any one of (1) to (7), in which the rotation axis of the screw is oriented in the vertical direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A compression molding device (1) includes: a casing (2); a discharge unit (8) that discharges waste compressed in the casing (2); and a rotatable screw (4) that compresses the waste charged into the casing (2) while sending the waste toward the discharge unit (8). The casing (2) has a plurality of projections (31) provided on the inner circumferential surface thereof, the projections preventing the waste from rotating together with the screw (4). The plurality of projections (31) are intermittently disposed along the rotation axis direction (32) of the screw (4) with intervals between the projections. Between projections (31) that are adjacent to each other along the rotation axis direction (32), a path (37) through which the waste can pass is formed.

Description

廃棄物の圧縮成形装置Waste Compression Molding Equipment
　本発明は、例えば廃プラスチック類等の廃棄物を圧縮して成形する圧縮成形装置に関する。 The present invention relates to a compression molding device that compresses and molds waste materials, such as waste plastics.
　従来、この種の圧縮成形装置としては、日本国の特公平７－５３３７４に記載されている。圧縮成形装置は、下部ほど細くなる円錐台状のケーシングと、廃棄物を上方からケーシング内に投入する投入口と、ケーシング内で圧縮された廃棄物をケーシングの下部から排出する排出口と、投入口からケーシング内に投入された廃棄物を排出口の方へ送りながら圧縮する回転自在なスクリューと、スクリューを回転させる電動機等とを有している。 　A conventional compression molding device of this type is described in Japanese Patent Publication No. 7-53374. The compression molding device has a truncated cone-shaped casing that tapers towards the bottom, an inlet for feeding waste into the casing from above, a discharge outlet for discharging the waste compressed inside the casing from the bottom of the casing, a rotatable screw that compresses the waste fed into the casing from the inlet while sending it towards the discharge outlet, and an electric motor that rotates the screw.
　廃棄物がスクリューと供回りするのを防止するための１本の突条がケーシングの内周面に設けられている。供回りとは、廃棄物がスクリューと一緒に回転してしまうことである。
　突条は上下方向に細長い棒状の部材である。スクリューの外周縁と突条との間には、スクリューが突条に干渉しないように、隙間が形成される。 A protrusion is provided on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw.
The ridges are thin, rod-like members that are elongated in the vertical direction. A gap is formed between the outer periphery of the screw and the ridges so that the screw does not interfere with the ridges.
　これによると、投入口からケーシング内に投入された廃棄物は、回転するスクリューによって下方へ送られながら圧縮され、棒状に成形されて排出口から排出される。
　この際、廃棄物が突条に引っ掛かることにより、廃棄物がスクリューと供回りするのを防止することができる。 According to this device, waste material is fed into the casing through an inlet, compressed as it is sent downward by the rotating screw, and formed into a rod-like shape before being discharged through a discharge outlet.
At this time, the waste is caught on the ridges, thereby preventing the waste from rotating together with the screw.
　上記の従来形式では、スクリューが回転している際、廃棄物に混入している金属塊等の異物がスクリューと突条との間に引っ掛かって、スクリューに過大な負荷が掛かり、スクリューや電動機等が損傷する虞がある。
　本発明は、スクリューや電動機等の損傷を防止することが可能な廃棄物の圧縮成形装置を提供することを目的とする。 In the conventional type described above, when the screw is rotating, foreign matter such as metal lumps mixed in the waste can get caught between the screw and the ridge, putting an excessive load on the screw and posing a risk of damage to the screw, motor, etc.
SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a waste compression molding apparatus capable of preventing damage to the screw, motor, etc.
　本発明は、ケーシング内に投入された廃棄物をスクリューで圧縮して成形し排出する廃棄物の圧縮成形装置であって、
ケーシングと、廃棄物をケーシング内に投入する投入部と、圧縮された廃棄物をケーシング内から排出する排出部と、投入部からケーシング内に投入された廃棄物を排出部の方へ送りながら圧縮する回転自在なスクリューとを有し、
ケーシングの内周面に、廃棄物がスクリューと供回りするのを防止する複数の突起部が設けられ、
突起部はスクリューの回転軸心方向において間隔をあけて断続的に配置され、
スクリューの回転軸心方向において隣り合う突起部間に、廃棄物が通過可能な通路が形成されていることを特徴とする。 The present invention is a waste compression molding device that compresses waste introduced into a casing with a screw, molds the waste, and discharges the waste.
The waste treatment device has a casing, an input section for inputting waste into the casing, a discharge section for discharging the compressed waste from inside the casing, and a rotatable screw for compressing the waste input into the casing from the input section while sending it toward the discharge section,
A plurality of protrusions are provided on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw;
The protrusions are arranged intermittently at intervals in the axial direction of the screw,
A passage through which waste can pass is formed between adjacent protrusions in the axial direction of the screw.
　これによると、投入部からケーシング内に投入された廃棄物は、回転するスクリューによって排出部の方へ送られながら圧縮され、所定の形状に成形されて排出部から排出される。 In this system, waste material is fed into the casing from the feed section, compressed by the rotating screw as it is sent toward the discharge section, and formed into a specified shape before being discharged from the discharge section.
　この際、廃棄物が突起部に引っ掛かることにより、廃棄物がスクリューと供回りするのを防止することができる。また、スクリューが回転している際、廃棄物に混入している金属塊等の異物は、スクリューと突起部との間に噛み込みそうになっても、互いに隣り合う突起部間の通路を通り抜けて、圧縮成形された廃棄物と共に排出部から排出される。 In this case, the waste gets caught on the protrusions, preventing the waste from rotating along with the screw. Also, even if foreign matter such as metal lumps mixed in the waste comes close to being caught between the screw and the protrusions while the screw is rotating, it passes through the passages between the adjacent protrusions and is discharged from the discharge section together with the compressed and molded waste.
　これにより、廃棄物に混入している異物がスクリューと突起部との間に引っ掛かるのを防止することができ、以って、スクリューに過大な負荷が掛かることは無く、スクリューの損傷およびスクリューを回転させる電動機等の回転駆動装置の損傷を防止することができる。 This prevents foreign matter mixed in the waste from getting caught between the screw and the protrusion, and therefore prevents excessive load from being placed on the screw, preventing damage to the screw and the rotary drive device, such as the electric motor that rotates the screw.
　本発明の圧縮成形装置によれば、突起部は、スクリューの回転軸心に対して、スクリューの回転方向に向いた第１端部がスクリューの回転方向とは反対方向に向いた第２端部よりも排出部の方向へ位置するように、傾斜していることが好ましい。 In the compression molding device of the present invention, it is preferable that the protrusion is inclined with respect to the rotation axis of the screw so that the first end facing the rotation direction of the screw is positioned closer to the discharge section than the second end facing in the opposite direction to the rotation direction of the screw.
　これによると、突起部に引っ掛かった廃棄物は、互いに隣り合う突起部間の通路を通り抜ける際、突起部の傾斜によって排出部の方へ案内される。これにより、廃棄物はスムーズに排出部から排出される。 As a result, when waste gets caught on the protrusions, it is guided towards the discharge section by the inclination of the protrusions as it passes through the passage between adjacent protrusions. This allows the waste to be discharged smoothly from the discharge section.
　本発明の圧縮成形装置によれば、スクリューの回転軸心方向において互いに隣り合う一方の突起部の第１端部と他方の突起部の第２端部とが、スクリューの回転方向から見て、重なることが好ましい。 In the compression molding device of the present invention, it is preferable that the first end of one protrusion and the second end of the other protrusion that are adjacent to each other in the direction of the rotation axis of the screw overlap when viewed from the direction of rotation of the screw.
　これによると、廃棄物は、互いに隣り合う突起部間の通路を通り抜ける際、確実にいずれかの突起部に当たる。これにより、廃棄物がスクリューと供回りするのを確実に防止することができるとともに、廃棄物が突起部の傾斜によって排出部の方へ確実に案内される。 As a result, the waste material will hit one of the protrusions when passing through the passage between adjacent protrusions. This reliably prevents the waste material from rotating with the screw, and the inclination of the protrusions ensures that the waste material is guided toward the discharge section.
　本発明の圧縮成形装置によれば、排出部は、スクリューの回転軸心方向から見て、スクリューの回転軸心と突起部とを通る直線上に存在することが好ましい。 In the compression molding device of the present invention, it is preferable that the discharge portion is located on a straight line passing through the screw's rotation axis and the protrusion when viewed from the direction of the screw's rotation axis.
　これによると、スクリューで圧縮された廃棄物が突起部に当たることによって、廃棄物に加えられる圧力が突起部の近傍においてさらに上昇し、廃棄物は高い圧力によって円滑且つ確実に排出部から押し出される。 As a result, when the waste compressed by the screw hits the protrusion, the pressure applied to the waste increases further in the vicinity of the protrusion, and the waste is pushed out of the discharge section smoothly and reliably by the high pressure.
　本発明の圧縮成形装置によれば、突起部はスクリューの回転方向におけるケーシング内の複数箇所に配設されていることが好ましい。
　これによると、廃棄物がスクリューと供回りするのを確実に防止することができる。 According to the compression molding apparatus of the present invention, it is preferable that the protrusions are disposed at a plurality of positions within the casing in the rotation direction of the screw.
This can reliably prevent the waste from rotating together with the screw.
　以上のように本発明によると、廃棄物に混入している異物がスクリューと突起部との間に引っ掛かるのを防止することができる。このため、スクリューに過大な負荷が掛かることは無く、スクリューの損傷およびスクリューを回転させる電動機等の回転駆動装置の損傷を防止することができる。 As described above, the present invention can prevent foreign matter mixed in the waste from getting caught between the screw and the protrusion. This prevents excessive load from being placed on the screw, and prevents damage to the screw and the rotary drive device, such as the electric motor that rotates the screw.
本発明の第１の実施の形態における圧縮成形装置の断面図である。1 is a cross-sectional view of a compression molding apparatus according to a first embodiment of the present invention. 圧縮成形装置の一部拡大断面図である。FIG. 2 is a partially enlarged cross-sectional view of the compression molding device. 図２におけるＸ－Ｘ矢視図である。3 is a view taken along the line XX in FIG. 2. 圧縮成形装置の突起部の拡大図である。FIG. 4 is an enlarged view of a protrusion portion of the compression molding device. 本発明の第２の実施の形態における圧縮成形装置をスクリューの回転軸心方向から見たときの断面図である。FIG. 11 is a cross-sectional view of a compression molding device according to a second embodiment of the present invention, as viewed from the direction of the rotation axis of a screw. 本発明の第３の実施の形態における圧縮成形装置の断面図である。FIG. 11 is a cross-sectional view of a compression molding apparatus according to a third embodiment of the present invention. 圧縮成形装置の一部拡大断面図である。FIG. 2 is a partially enlarged cross-sectional view of the compression molding device. 圧縮成形装置の一部拡大平面図である。FIG. 2 is a partially enlarged plan view of the compression molding device. 本発明の第４の実施の形態における圧縮成形装置の突起部の拡大図である。FIG. 13 is an enlarged view of a protrusion of a compression molding device according to a fourth embodiment of the present invention. 本発明の第５の実施の形態における圧縮成形装置の突起部の拡大図である。FIG. 13 is an enlarged view of a protrusion of a compression molding device according to a fifth embodiment of the present invention. 本発明の第６の実施の形態における圧縮成形装置の断面図である。FIG. 13 is a cross-sectional view of a compression molding apparatus according to a sixth embodiment of the present invention. 本発明の第７の実施の形態における圧縮成形装置の断面図である。FIG. 13 is a cross-sectional view of a compression molding apparatus according to a seventh embodiment of the present invention.
　以下、本発明における実施の形態を、図面を参照して説明する。 The following describes an embodiment of the present invention with reference to the drawings.
　（第１の実施の形態）
　第１の実施の形態では、図１～図３に示すように、圧縮成形装置１は、ケーシング２内に投入されたプラスチック廃棄物３（廃棄物の一例）をスクリュー４で圧縮して成形し排出する。圧縮成形装置１は、ケーシング２と、プラスチック廃棄物３をケーシング２内に投入する投入部７と、ケーシング２内で圧縮されたプラスチック廃棄物３を排出する排出部８と、投入部７からケーシング２内に投入されたプラスチック廃棄物３を排出部８の方へ送りながら圧縮する回転自在なスクリュー４とを有している。 (First embodiment)
In the first embodiment, as shown in Figures 1 to 3, a compression molding device 1 compresses plastic waste 3 (an example of waste) fed into a casing 2 with a screw 4, molds it, and discharges it. The compression molding device 1 has a casing 2, an input section 7 for inputting the plastic waste 3 into the casing 2, a discharge section 8 for discharging the plastic waste 3 compressed in the casing 2, and a rotatable screw 4 for compressing the plastic waste 3 fed into the casing 2 from the input section 7 while sending it toward the discharge section 8.
　投入部７は投入口１０から投入されたプラスチック廃棄物３をケーシング２内に供給するスクリューコンベヤ１１（供給装置の一例）を有している。スクリューコンベヤ１１は、プラスチック廃棄物３を投入口１０からケーシング２内へ移送する移送用スクリュー１２を有しており、ケーシング２の上部に取り付けられている。
　ケーシング２は、円筒状の胴体１４と、胴体１４の上端に設けられた天板１５と、胴体１４の下端に設けられた底板１６とを有している。 The input section 7 has a screw conveyor 11 (an example of a supply device) that supplies the plastic waste 3 input from the input port 10 into the casing 2. The screw conveyor 11 has a transport screw 12 that transports the plastic waste 3 from the input port 10 into the casing 2, and is attached to the upper part of the casing 2.
The casing 2 has a cylindrical body 14 , a top plate 15 provided at the upper end of the body 14 , and a bottom plate 16 provided at the lower end of the body 14 .
　排出部８は、底板１６に形成された排出口１９と、底板１６から下向きに設けられた排出ノズル２０とを有している。排出口１９は、ケーシング２の内部と排出ノズル２０の上端内部とに開口している。 The discharge section 8 has a discharge port 19 formed in the bottom plate 16 and a discharge nozzle 20 that faces downward from the bottom plate 16. The discharge port 19 opens to the inside of the casing 2 and to the inside of the upper end of the discharge nozzle 20.
　スクリュー４は、ケーシング２内を上下方向に貫通する回転軸２３と、回転軸２３の外周に設けられた螺旋状のスクリュー羽根２４とを有している。天板１５には、回転軸２３を回転させる電動機２５（回転駆動装置の一例）が設けられている。スクリュー羽根２４のピッチは、一定であってもよく、或いは、排出部８の方すなわち下方ほど縮小されていてもよい。 The screw 4 has a rotating shaft 23 that passes vertically through the casing 2, and a helical screw blade 24 provided on the outer periphery of the rotating shaft 23. An electric motor 25 (an example of a rotary drive device) that rotates the rotating shaft 23 is provided on the top plate 15. The pitch of the screw blade 24 may be constant, or may be reduced toward the discharge section 8, i.e., downward.
　回転軸２３の下部は、底板１６を貫通してケーシング２の下方へ突出している。回転軸２３の下端には切断棒２８が設けられている。切断棒２８は排出ノズル２０の下方において回転軸２３と一体に回転自在である。 The lower part of the rotating shaft 23 penetrates the bottom plate 16 and protrudes downward from the casing 2. A cutting rod 28 is provided at the lower end of the rotating shaft 23. The cutting rod 28 is freely rotatable together with the rotating shaft 23 below the discharge nozzle 20.
　ケーシング２の内周面には、プラスチック廃棄物３がスクリュー４と供回りするのを防止する複数の突起部３１が設けられている。これら突起部３１は、胴体１４の内周面に取り付けられており、図４に示すように上下方向３２（スクリュー４の回転軸心３６の方向の一例）において間隔をあけて断続的に配置されているとともに、図３に示すようにスクリュー４の回転方向３３におけるケーシング２内の複数箇所に設けられている。例えば、図３に示すように、突起部３１は、スクリュー４の回転方向３３において、６０°おきに６箇所に配置されている。 The inner circumferential surface of the casing 2 is provided with a number of protrusions 31 that prevent the plastic waste 3 from rotating together with the screw 4. These protrusions 31 are attached to the inner circumferential surface of the body 14 and are arranged intermittently at intervals in the vertical direction 32 (one example of the direction of the rotation axis 36 of the screw 4) as shown in FIG. 4, and are provided at a number of locations within the casing 2 in the rotation direction 33 of the screw 4 as shown in FIG. 3. For example, as shown in FIG. 3, the protrusions 31 are arranged at six locations every 60° in the rotation direction 33 of the screw 4.
　突起部３１は胴体１４の内周面から胴体１４の径方向における内側へ突出している。スクリュー羽根２４が突起部３１に干渉しないように、突起部３１とスクリュー羽根２４の外周縁との間には隙間が形成されている。 The protrusion 31 protrudes from the inner peripheral surface of the body 14 inward in the radial direction of the body 14. A gap is formed between the protrusion 31 and the outer peripheral edge of the screw blade 24 so that the screw blade 24 does not interfere with the protrusion 31.
　図４に示すように、上下方向３２において隣り合う突起部３１間には、通路３７が形成されている。プラスチック廃棄物３は、通路３７を、スクリュー４の回転方向３３へ通過可能である。突起部３１は、スクリュー４の回転軸心３６に対して、第１端部３１ａが第２端部３１ｂよりも排出部８の方向（下方向）に位置するように、傾斜している。突起部３１の第１端部３１ａとは、スクリュー４の回転方向３３に向いた端部である。突起部３１の第２端部３１ｂとは、スクリュー４の回転方向３３とは反対方向３４に向いた端部である。すなわち、突起部３１は、第１端部３１ａが下向きで且つ第２端部３１ｂが上向きとなるように、傾斜している。 As shown in FIG. 4, a passage 37 is formed between adjacent protrusions 31 in the vertical direction 32. The plastic waste 3 can pass through the passage 37 in the rotation direction 33 of the screw 4. The protrusions 31 are inclined with respect to the rotation axis 36 of the screw 4 so that the first end 31a is located further toward the discharge section 8 (downward) than the second end 31b. The first end 31a of the protrusions 31 is the end facing the rotation direction 33 of the screw 4. The second end 31b of the protrusions 31 is the end facing the opposite direction 34 to the rotation direction 33 of the screw 4. In other words, the protrusions 31 are inclined so that the first end 31a faces downward and the second end 31b faces upward.
　図４に示すように、上下方向３２において互いに隣り合う上位（一方）の突起部３１の第１端部３１ａと下位（他方）の突起部３１の第２端部３１ｂとは、スクリュー４の回転方向３３から見て、重複領域Ｄにおいて重なっている。 As shown in FIG. 4, the first end 31a of the upper (one) protrusion 31 and the second end 31b of the lower (other) protrusion 31 that are adjacent to each other in the vertical direction 32 overlap in an overlap region D when viewed from the rotation direction 33 of the screw 4.
　以下、上記構成における作用を説明する。
　図１に示すように、スクリューコンベヤ１１が作動し、電動機２５によってスクリュー４が回転駆動し、プラスチック廃棄物３が投入口１０に投入される。投入されたプラスチック廃棄物３は、スクリューコンベヤ１１によって投入口１０からケーシング２内に供給され、回転するスクリュー４によって下方へ送られながら圧縮されることで温度が上昇して軟化し、ペレット状（円柱状）に成形されて、排出ノズル２０から下方へ排出される。 The operation of the above configuration will now be described.
As shown in Fig. 1, the screw conveyor 11 is operated, the screw 4 is rotated by the electric motor 25, and the plastic waste 3 is fed into the inlet 10. The fed plastic waste 3 is supplied from the inlet 10 into the casing 2 by the screw conveyor 11, and compressed while being sent downward by the rotating screw 4, causing the temperature to rise and soften, and the plastic waste 3 is formed into pellets (cylindrical) and discharged downward from the discharge nozzle 20.
　この際、スクリュー４と一体に回転している切断棒２８が排出ノズル２０から排出されるプラスチック廃棄物３を所定の長さに切断する。これにより、プラスチック廃棄物３から所定の形状（例えばペレット状）の固形燃料が成形される。このようにしてプラスチック廃棄物３から得られた固形燃料を例えば溶融炉等の燃料に使用することができる。 At this time, the cutting rod 28, which rotates together with the screw 4, cuts the plastic waste 3 discharged from the discharge nozzle 20 to a predetermined length. This allows the plastic waste 3 to be molded into solid fuel of a predetermined shape (e.g., pellet-like). The solid fuel obtained from the plastic waste 3 in this way can be used, for example, as fuel for a melting furnace, etc.
　ケーシング２内において、スクリュー４が回転している際、プラスチック廃棄物３が突起部３１に引っ掛かることにより、プラスチック廃棄物３がスクリュー４と供回りするのを防止することができる。供回りとは、プラスチック廃棄物３がスクリュー４と一緒に回転してしまうことである。 When the screw 4 rotates inside the casing 2, the plastic waste 3 gets caught on the protrusion 31, preventing the plastic waste 3 from rotating together with the screw 4. Rotating together means that the plastic waste 3 rotates together with the screw 4.
　また、プラスチック廃棄物３に混入している金属塊等の異物は、スクリュー羽根２４と突起部３１との間に噛み込みそうになっても、上下方向３２において互いに隣り合う突起部３１間の通路３７（図４参照）を通り抜けて、圧縮成形されたプラスチック廃棄物３と共に排出ノズル２０から排出される。 Even if foreign matter such as metal lumps mixed in the plastic waste 3 is about to get caught between the screw blade 24 and the protrusion 31, it passes through the passage 37 (see Figure 4) between adjacent protrusions 31 in the vertical direction 32 and is discharged from the discharge nozzle 20 together with the compressed plastic waste 3.
　これにより、プラスチック廃棄物３に混入している異物がスクリュー羽根２４と突起部３１との間に噛み込んで引っ掛かってしまうのを防止することができる。このため、スクリュー４に過大な負荷が掛かることは無く、スクリュー４や電動機２５等の損傷を防止することができる。 This prevents foreign matter mixed in the plastic waste 3 from getting caught between the screw blade 24 and the protrusion 31. As a result, excessive load is not applied to the screw 4, and damage to the screw 4, motor 25, etc. can be prevented.
　プラスチック廃棄物３は、突起部３１間の通路３７を通り抜ける際、図４の矢印Ｅ，Ｆで示すように、傾斜した突起部３１の下面（傾斜面）によって、排出部８の方向すなわち下方向へ案内される。これにより、プラスチック廃棄物３は円滑に排出口１９を通って排出ノズル２０から排出される。 When the plastic waste 3 passes through the passage 37 between the protrusions 31, it is guided by the lower surfaces (inclined surfaces) of the inclined protrusions 31 in the direction of the discharge section 8, i.e., downward, as shown by arrows E and F in Figure 4. This allows the plastic waste 3 to be smoothly discharged from the discharge nozzle 20 through the discharge port 19.
　突起部３１は、スクリュー４の回転方向３３から見て、重複領域Ｄにおいて重なっている。このため、プラスチック廃棄物３は突起部３１間の通路３７を通り抜ける際、確実に上下いずれかの突起部３１に当たる。これにより、プラスチック廃棄物３は、スクリュー４と供回りするのを確実に防止されるとともに、傾斜した突起部３１の下面によって、排出部８の方向すなわち下方向へ確実に案内される。 The protrusions 31 overlap in the overlapping region D when viewed from the rotation direction 33 of the screw 4. Therefore, when the plastic waste 3 passes through the passage 37 between the protrusions 31, it is sure to hit either the upper or lower protrusion 31. This ensures that the plastic waste 3 is prevented from rotating together with the screw 4, and is reliably guided by the inclined underside of the protrusion 31 in the direction of the discharge section 8, i.e., downward.
　（第２の実施の形態）
　第２の実施の形態では、図５に示すように、排出口１９は、上下方向３２（スクリュー４の回転軸心３６の方向の一例）から見て、スクリュー４の回転軸心３６と突起部３１とを通る径方向の仮想の直線３９上に存在する。 Second Embodiment
In the second embodiment, as shown in FIG. 5, the discharge port 19 exists on a virtual radial line 39 passing through the rotation axis 36 of the screw 4 and the protrusion portion 31 when viewed from the vertical direction 32 (an example of the direction of the rotation axis 36 of the screw 4).
　これによると、スクリュー４で圧縮されたプラスチック廃棄物３が突起部３１に当たることによって、プラスチック廃棄物３に加えられる圧力が突起部３１の近傍周辺においてさらに上昇し、プラスチック廃棄物３は、高い圧力によって、円滑且つ確実に排出口１９を通り排出ノズル２０から押し出される。 As a result, when the plastic waste 3 compressed by the screw 4 hits the protrusion 31, the pressure applied to the plastic waste 3 further increases in the vicinity of the protrusion 31, and the high pressure causes the plastic waste 3 to be pushed smoothly and reliably through the discharge port 19 and out of the discharge nozzle 20.
　上記第１および第２の実施の形態では、１組の排出口１９と排出ノズル２０とをケーシング２の底板１６に設けているが、複数組の排出口１９と排出ノズル２０とを底板１６に設けてもよい。 In the first and second embodiments described above, one set of exhaust port 19 and exhaust nozzle 20 is provided on the bottom plate 16 of the casing 2, but multiple sets of exhaust port 19 and exhaust nozzle 20 may be provided on the bottom plate 16.
　上記第１および第２の実施の形態では、図１に示すように、スクリュー羽根２４は胴体１４内の上端部（投入部７に近い方の端部）から下端部（排出部８に近い方の端部）に至る全長に亘って上下方向３２に設けられている。これに対応して、複数の突起部３１は、上下方向３２においてスクリュー羽根２４が設けられている範囲に亘って、配列されている。しかしながら、このような形態に限定されるものではなく、例えば、スクリュー羽根２４が胴体１４内の下部にのみ部分的に設けられていてもよい。この場合も、複数の突起部３１は、上下方向３２においてスクリュー羽根２４が設けられている範囲（すなわち胴体１４内の下部）のみに、配列される。 In the first and second embodiments, as shown in FIG. 1, the screw blades 24 are provided in the vertical direction 32 over the entire length of the body 14 from the upper end (the end closer to the input section 7) to the lower end (the end closer to the discharge section 8). Correspondingly, the multiple protrusions 31 are arranged over the range in which the screw blades 24 are provided in the vertical direction 32. However, this is not limited to this form, and for example, the screw blades 24 may be provided only partially in the lower part of the body 14. In this case as well, the multiple protrusions 31 are arranged only in the range in which the screw blades 24 are provided in the vertical direction 32 (i.e., the lower part of the body 14).
　上記第１および第２の実施の形態では、プラスチック廃棄物３をスクリュー４で圧縮することにより、プラスチック廃棄物３を昇温させ軟化させているが、プラスチック廃棄物３の温度が十分に上昇しない場合は、ケーシング２の底板１６に加熱装置を設け、加熱装置によってプラスチック廃棄物３を十分に昇温させて軟化させてもよい。 In the first and second embodiments described above, the plastic waste 3 is compressed by the screw 4 to raise the temperature of the plastic waste 3 and soften it, but if the temperature of the plastic waste 3 does not rise sufficiently, a heating device may be provided on the bottom plate 16 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
　（第３の実施の形態）
　以下に第３の実施の形態を説明する。尚、上記第１および第２の実施の形態に記載した構成部材と同じ部材については、同一の符号を付記して詳細な説明を省略する。 Third Embodiment
The third embodiment will be described below, with the same components as those described in the first and second embodiments being given the same reference numerals and detailed description thereof being omitted.
　第３の実施の形態では、図６～図８に示すように、ケーシング２は、円筒状の胴体１４と、胴体１４の上端に設けられた天板１５と、胴体１４の下端に設けられた底胴部５１とを有している。底胴部５１は下部ほど縮径する円錐台状の筒である。
　胴体１４内の下部と底胴部５１内の上部とは連通している。排出部８は底胴部５１の下端に形成された排出口１９を有している。 6 to 8, in the third embodiment, the casing 2 has a cylindrical body 14, a top plate 15 provided at the upper end of the body 14, and a bottom body portion 51 provided at the lower end of the body 14. The bottom body portion 51 is a truncated cone-shaped cylinder whose diameter decreases toward the bottom.
The lower part of the body 14 communicates with the upper part of the bottom body portion 51. The discharge portion 8 has a discharge port 19 formed at the lower end of the bottom body portion 51.
　スクリュー４は、ケーシング２内に設けられた上下方向３２の回転軸２３と、回転軸２３の下部外周に設けられた螺旋状のスクリュー羽根５３とを有している。スクリュー羽根５３は底胴部５１内に収容されている。 The screw 4 has a rotating shaft 23 that is arranged in the casing 2 and extends in the vertical direction 32, and a spiral screw blade 53 that is arranged on the lower outer periphery of the rotating shaft 23. The screw blade 53 is housed in the bottom body 51.
　ケーシング２の下方には、排出口１９から排出されるプラスチック廃棄物３を所定の長さに切断する切断装置５６が設けられている。切断装置５６は、回転軸５７と、回転軸５７に設けられた切断棒２８とを有している。 A cutting device 56 is provided below the casing 2 to cut the plastic waste 3 discharged from the discharge port 19 to a predetermined length. The cutting device 56 has a rotating shaft 57 and a cutting rod 28 attached to the rotating shaft 57.
　底胴部５１の内周面には複数の突起部３１が取り付けられている。これら突起部３１は、図７に示すように上下方向３２において間隔をあけて断続的に配置されているとともに、図８に示すようにスクリュー４の回転方向３３において、例えば９０°おきに４箇所に配設されている。
　突起部３１の形状および突起部３１同士の配置関係等は、図４で示した第１の実施の形態のものと同様である。 A plurality of protrusions 31 are attached to the inner peripheral surface of the bottom body 51. These protrusions 31 are arranged intermittently at intervals in the up-down direction 32 as shown in Fig. 7, and are arranged at four locations, for example, at 90° intervals in the rotation direction 33 of the screw 4 as shown in Fig. 8.
The shape of the protrusions 31 and the relative positions of the protrusions 31 are similar to those of the first embodiment shown in FIG.
　以下、上記構成における作用を説明する。
　図６に示すように、プラスチック廃棄物３は、投入口１０からケーシング２内に供給され、底胴部５１内において回転するスクリュー羽根５３によって圧縮されることで温度が上昇して軟化し、ペレット状（円柱状）に成形されて、排出口１９から下方へ排出される。 The operation of the above configuration will now be described.
As shown in FIG. 6 , the plastic waste 3 is fed into the casing 2 through the inlet 10, and is compressed by the screw blades 53 rotating inside the bottom body 51, causing the temperature to rise and the plastic waste to soften. The plastic waste is then formed into pellets (cylindrical) and discharged downward through the outlet 19.
　この際、切断装置５６の回転軸５７と一体に回転している切断棒２８が排出口１９から排出されるプラスチック廃棄物３を所定の長さに切断する。これにより、プラスチック廃棄物３は所定の形状（例えばペレット状）の固形燃料に成形される。このようにして圧縮成形されたプラスチック廃棄物３は、固形燃料として、例えば溶融炉等の燃料に使用される。 At this time, the cutting rod 28, which rotates integrally with the rotating shaft 57 of the cutting device 56, cuts the plastic waste 3 discharged from the discharge outlet 19 to a predetermined length. As a result, the plastic waste 3 is molded into a solid fuel of a predetermined shape (e.g., pellet-like). The plastic waste 3 compressed and molded in this way is used as solid fuel, for example as fuel for a melting furnace, etc.
　上記第３の実施の形態では、プラスチック廃棄物３をスクリュー４で圧縮することにより、プラスチック廃棄物３を昇温させ軟化させているが、プラスチック廃棄物３の温度が十分に上昇しない場合は、ケーシング２の底胴部５１に加熱装置を設け、加熱装置によってプラスチック廃棄物３を十分に昇温させ軟化させてもよい。 In the third embodiment described above, the plastic waste 3 is compressed by the screw 4 to raise the temperature of the plastic waste 3 and soften it, but if the temperature of the plastic waste 3 does not rise sufficiently, a heating device may be provided in the bottom body 51 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
　（第４の実施の形態）
　上記第１～第３の実施の形態では、突起部３１が傾斜しているが、第４の実施の形態では、図９に示すように、突起部３１は、傾斜せず、その長手方向がスクリュー４の回転軸心３６と同方向（すなわち上下方向３２）になるように配置してもよい。 (Fourth embodiment)
In the first to third embodiments described above, the protrusion 31 is inclined, but in the fourth embodiment, as shown in FIG. 9, the protrusion 31 may be arranged not to be inclined, but so that its longitudinal direction is in the same direction as the rotation axis 36 of the screw 4 (i.e., the up-down direction 32).
　（第５の実施の形態）
　第５の実施の形態は、上記第４の実施の形態の変形例であり、図１０に示すように、複数の突起部３１，６１が千鳥状に配置されている。すなわち、１列に配列された複数の突起部３１の隣りに、１列に配列された複数の別の突起部６１が設けられている。突起部３１と別の突起部６１とは、所定間隔６５をあけて、スクリュー４の回転軸心３６と平行に２列に配置されている。 Fifth embodiment
The fifth embodiment is a modification of the fourth embodiment, and as shown in Fig. 10, a plurality of protrusions 31, 61 are arranged in a staggered pattern. That is, a plurality of other protrusions 61 arranged in a row are provided next to a plurality of protrusions 31 arranged in a row. The protrusions 31 and the other protrusions 61 are arranged in two rows parallel to the rotation axis 36 of the screw 4 with a predetermined interval 65 between them.
　上下方向３２において隣り合う突起部３１間には通路３７が形成されている。別の突起部６１は、通路３７を通る回転方向３３の仮想の直線と交差しており、スクリュー４の回転方向３３から見て、通路３７に重複するように配置されている。 A passage 37 is formed between adjacent protrusions 31 in the vertical direction 32. Another protrusion 61 intersects with an imaginary straight line in the rotational direction 33 that passes through the passage 37, and is positioned so as to overlap the passage 37 when viewed from the rotational direction 33 of the screw 4.
　（第６の実施の形態）
　先述した第１の実施の形態から第５の実施の形態では、図１および図６に示すように、スクリュー４の回転軸心３６の方向を上下方向３２にした竪型の圧縮成形装置１を挙げた。しかしながら、スクリュー４の回転軸心３６の方向は上下方向３２のみに限定されるものではない。例えば、第６の実施の形態として、図１１に示すように、スクリュー４の回転軸心３６の方向が水平方向である横型の圧縮成形装置１であってもよい。 Sixth embodiment
In the first to fifth embodiments described above, as shown in Fig. 1 and Fig. 6, a vertical compression molding apparatus 1 in which the rotation axis 36 of the screw 4 is oriented in the vertical direction 32 is given. However, the direction of the rotation axis 36 of the screw 4 is not limited to the vertical direction 32. For example, as a sixth embodiment, as shown in Fig. 11, a horizontal compression molding apparatus 1 in which the rotation axis 36 of the screw 4 is oriented in the horizontal direction may be used.
　この横型の圧縮成形装置１は、ケーシング２と、プラスチック廃棄物３をケーシング２内に投入する投入部７と、圧縮されたプラスチック廃棄物３をケーシング２内から排出する排出部８と、投入部７からケーシング２内に投入されたプラスチック廃棄物３を排出部８の方へ送りながら圧縮する回転自在なスクリュー４とを有している。 This horizontal compression molding device 1 has a casing 2, an input section 7 for inputting plastic waste 3 into the casing 2, a discharge section 8 for discharging the compressed plastic waste 3 from inside the casing 2, and a rotatable screw 4 that compresses the plastic waste 3 input into the casing 2 from the input section 7 while sending it toward the discharge section 8.
　投入部７は投入口１０を有している。また、ケーシング２は、円筒状の胴体１４と、胴体１４の前端部を閉鎖する前壁部７０と、胴体１４の後端部を閉鎖する後蓋部７１とを有している。 The input section 7 has an input port 10. The casing 2 also has a cylindrical body 14, a front wall portion 70 that closes the front end of the body 14, and a rear lid portion 71 that closes the rear end of the body 14.
　排出部８は、後蓋部７１に形成された排出口１９と、後蓋部７１に水平方向に取り付けられた排出ノズル２０とを有している。胴体１４の内周面には複数の突起部３１が設けられている。 The discharge section 8 has a discharge port 19 formed in the rear lid section 71 and a discharge nozzle 20 attached horizontally to the rear lid section 71. A number of protrusions 31 are provided on the inner peripheral surface of the body 14.
　スクリュー４は胴体１４内の前端部（投入部７に近い方の端部）から後端部（排出部８に近い方の端部）に至る全長に亘って前後方向３５に設けられている。これに対応して、複数の突起部３１は、前後方向３５においてスクリュー４が設けられている範囲に亘って、配列されている。
　突起部３１の形状および突起部３１同士の配置関係等は、図４で示した第１の実施の形態のものと同様である。
　これによると、第１の実施の形態と同様の作用および効果が得られる。 The screw 4 is provided in the body 14 in the front-rear direction 35 over its entire length from the front end (the end closer to the input portion 7) to the rear end (the end closer to the discharge portion 8). Correspondingly, the multiple protrusions 31 are arranged in the front-rear direction 35 over the range in which the screw 4 is provided.
The shape of the protrusions 31 and the relative positions of the protrusions 31 are similar to those of the first embodiment shown in FIG.
This provides the same effects and advantages as the first embodiment.
　上記第６の実施の形態では、突起部３１の形状および突起部３１同士の配置関係等は、図４で示した第１の実施の形態のものに限定されず、図９で示した第４の実施の形態又は図１０で示した第５の実施の形態のものと同様であってもよい。 In the sixth embodiment, the shape of the protrusions 31 and the relative positions of the protrusions 31 are not limited to those of the first embodiment shown in FIG. 4, but may be the same as those of the fourth embodiment shown in FIG. 9 or the fifth embodiment shown in FIG. 10.
　上記第６の実施の形態では、図５に示した第２の実施の形態と同様に、前後方向３５（スクリュー４の回転軸心３６の方向の一例）から見て、排出口１９がスクリュー４の回転軸心３６と突起部３１とを通る径方向の仮想の直線３９上に存在するように構成されていてもよい。或いは、排出口１９が上記仮想の直線３９上から外れた位置に存在するように構成されていてもよい。 In the sixth embodiment, as in the second embodiment shown in FIG. 5, the discharge port 19 may be configured to be located on a virtual radial line 39 that passes through the rotation axis 36 of the screw 4 and the protrusion 31 when viewed from the front-rear direction 35 (one example of the direction of the rotation axis 36 of the screw 4). Alternatively, the discharge port 19 may be configured to be located at a position that is off the virtual line 39.
　上記第６の実施の形態では、図１１に示すように、１組の排出口１９と排出ノズル２０とをケーシング２の後蓋部７１に設けているが、複数組の排出口１９と排出ノズル２０とを後蓋部７１に設けてもよい。 In the sixth embodiment, as shown in FIG. 11, one set of exhaust port 19 and exhaust nozzle 20 is provided on the rear cover portion 71 of the casing 2, but multiple sets of exhaust port 19 and exhaust nozzle 20 may be provided on the rear cover portion 71.
　上記第６の実施の形態では、図１１に示すように、スクリュー羽根２４は胴体１４内の前端部（投入部７に近い方の端部）から後端部（排出部８に近い方の端部）に至る全長に亘って前後方向３５に設けられている。これに対応して、複数の突起部３１は、前後方向３５においてスクリュー羽根２４が設けられている範囲に亘って、配列されている。しかしながら、このような形態に限定されるものではなく、例えば、スクリュー羽根２４が胴体１４内の後部にのみ部分的に設けられていてもよい。この場合も、複数の突起部３１は、前後方向３５においてスクリュー羽根２４が設けられている範囲（すなわち胴体１４内の後部）のみに、配列される。 In the sixth embodiment, as shown in FIG. 11, the screw blades 24 are provided in the front-rear direction 35 over the entire length from the front end (the end closer to the input section 7) to the rear end (the end closer to the discharge section 8) in the body 14. Correspondingly, the multiple protrusions 31 are arranged over the range in which the screw blades 24 are provided in the front-rear direction 35. However, this is not limited to this form, and for example, the screw blades 24 may be provided partially only at the rear part of the body 14. In this case as well, the multiple protrusions 31 are arranged only in the range in which the screw blades 24 are provided in the front-rear direction 35 (i.e., the rear part of the body 14).
　上記第６の実施の形態では、プラスチック廃棄物３をスクリュー４で圧縮することにより、プラスチック廃棄物３を昇温させ軟化させているが、プラスチック廃棄物３の温度が十分に上昇しない場合は、ケーシング２の後蓋部７１に加熱装置を設け、加熱装置によってプラスチック廃棄物３を十分に昇温させて軟化させてもよい。 In the sixth embodiment, the plastic waste 3 is compressed by the screw 4 to raise the temperature and soften the plastic waste 3. However, if the temperature of the plastic waste 3 does not rise sufficiently, a heating device may be provided on the rear cover 71 of the casing 2, and the plastic waste 3 may be sufficiently heated and softened by the heating device.
　（第７の実施の形態）
　第７の実施の形態では、図１２に示すように、ケーシング２は、円筒状の胴体１４と、胴体１４の前端部を閉鎖する前壁部７０と、胴体１４の後端部に設けられた後胴部７４とを有している。後胴部７４は後部ほど縮径する円錐台状の筒である。
　胴体１４内の後部と後胴部７４内の前部とは連通している。排出部８は後胴部７４の後端に形成された排出口１９を有している。 Seventh embodiment
12, in the seventh embodiment, the casing 2 has a cylindrical body 14, a front wall portion 70 that closes the front end of the body 14, and a rear body portion 74 that is provided at the rear end of the body 14. The rear body portion 74 is a truncated cone-shaped cylinder whose diameter decreases toward the rear.
The rear portion of the fuselage 14 communicates with the front portion of the rear portion 74. The discharge section 8 has a discharge port 19 formed at the rear end of the rear portion 74.
　スクリュー４は、ケーシング２内に設けられた水平方向の回転軸２３と、回転軸２３の後部外周に設けられた螺旋状のスクリュー羽根５３とを有している。スクリュー羽根５３は後胴部７４内に収容されている。 The screw 4 has a horizontal rotating shaft 23 provided inside the casing 2 and a spiral screw blade 53 provided on the outer periphery of the rear part of the rotating shaft 23. The screw blade 53 is housed inside the rear body part 74.
　ケーシング２の後方には、排出口１９から排出されるプラスチック廃棄物３を所定の長さに切断する切断装置５６が設けられている。切断装置５６は、回転軸５７と、回転軸５７に設けられた切断棒２８とを有している。 A cutting device 56 is provided at the rear of the casing 2 to cut the plastic waste 3 discharged from the discharge port 19 to a predetermined length. The cutting device 56 has a rotating shaft 57 and a cutting rod 28 attached to the rotating shaft 57.
　後胴部７４の内周面には複数の突起部３１が取り付けられている。これら突起部３１は、前後方向３５において間隔をあけて断続的に配置されているとともに、スクリュー４の回転方向３３において、例えば９０°おきに４箇所に配設されている。 A number of protrusions 31 are attached to the inner peripheral surface of the rear body 74. These protrusions 31 are arranged at intervals in the front-to-rear direction 35, and are arranged at four locations, for example, at 90° intervals in the rotation direction 33 of the screw 4.
　突起部３１の形状および突起部３１同士の配置関係等は、図４で示した第１の実施の形態のものと同様であるが、図９で示した第４の実施の形態又は図１０で示した第５の実施の形態のものと同様であってもよい。 The shape of the protrusions 31 and the relative positions of the protrusions 31 are the same as those in the first embodiment shown in FIG. 4, but may also be the same as those in the fourth embodiment shown in FIG. 9 or the fifth embodiment shown in FIG. 10.
　上記第１の実施の形態から第７の実施の形態では、廃棄物の一例としてプラスチック廃棄物３を圧縮成形装置１に投入しているが、プラスチック廃棄物３に限定されるものではなく、圧縮することによって成形される廃棄物であれば、どのようなものであってもよい。例えば、木屑や食品系廃棄物等、さらにはプラスチックを含むこれら木屑や食品系廃棄物の混合物であってもよい。 In the first to seventh embodiments described above, plastic waste 3 is fed into the compression molding device 1 as an example of waste, but this is not limited to plastic waste 3, and any waste that can be molded by compression may be used. For example, wood chips, food waste, and even a mixture of wood chips and food waste that contains plastic may be used.
　以上の実施の形態により、下記の技術（１）～（１１）が開示される。 The above embodiments disclose the following techniques (1) to (11).
（１）ケーシング内に投入された廃棄物をスクリューで圧縮して成形し排出する廃棄物の圧縮成形装置であって、ケーシングと、廃棄物をケーシング内に投入する投入部と、圧縮された廃棄物をケーシング内から排出する排出部と、投入部からケーシング内に投入された廃棄物を排出部の方へ送りながら圧縮する回転自在なスクリューとを有し、ケーシングの内周面に、廃棄物がスクリューと供回りするのを防止する複数の突起部が設けられ、前記複数の突起部はスクリューの回転軸心方向において間隔をあけて断続的に配置され、スクリューの回転軸心方向において隣り合う突起部間に、廃棄物が通過可能な通路が形成されている廃棄物の圧縮成形装置。 (1) A waste compression molding device that compresses waste fed into a casing with a screw, molds the waste, and discharges it, the device having a casing, an input section for feeding the waste into the casing, a discharge section for discharging the compressed waste from within the casing, and a rotatable screw that compresses the waste fed into the casing from the input section while sending it towards the discharge section, the device having a plurality of protrusions on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw, the plurality of protrusions being intermittently arranged at intervals in the direction of the rotation axis of the screw, and a passageway through which the waste can pass is formed between adjacent protrusions in the direction of the rotation axis of the screw.
（２）前記複数の突起部のうち少なくとも１つの突起部は、スクリューの回転軸心に対して、スクリューの回転方向に向いた第１端部がスクリューの回転方向とは反対方向に向いた第２端部よりも排出部の方向へ位置するように、傾斜している（１）記載の廃棄物の圧縮成形装置。 (2) A waste compression molding device as described in (1), in which at least one of the multiple protrusions is inclined with respect to the rotation axis of the screw so that a first end facing the rotation direction of the screw is positioned closer to the discharge section than a second end facing in the opposite direction to the rotation direction of the screw.
（３）スクリューの回転軸心方向において互いに隣り合う一方の突起部の第１端部と他方の突起部の第２端部とが、スクリューの回転方向から見て、重なる（２）記載の廃棄物の圧縮成形装置。 (3) A waste compression molding device as described in (2) in which a first end of one protrusion and a second end of the other protrusion that are adjacent to each other in the direction of the rotation axis of the screw overlap when viewed from the direction of rotation of the screw.
（４）排出部は、スクリューの回転軸心方向から見て、スクリューの回転軸心と前記複数の突起部のうち少なくとも１つの突起部とを通る直線上に存在する（１）から（３）のいずれかに記載の廃棄物の圧縮成形装置。 (4) A waste compression molding device according to any one of (1) to (3), in which the discharge section is located on a straight line passing through the rotation axis of the screw and at least one of the multiple protrusions when viewed from the direction of the rotation axis of the screw.
（５）前記複数の突起部はスクリューの回転方向におけるケーシング内の複数箇所に配設されている（１）から（４）のいずれかに記載の廃棄物の圧縮成形装置。 (5) A waste compression molding device as described in any one of (1) to (4), in which the multiple protrusions are arranged at multiple locations within the casing in the direction of rotation of the screw.
（６）突起部は、長手方向がスクリューの回転軸心と同方向になるように配置されている（１）と（４）と（５）のいずれかに記載の廃棄物の圧縮成形装置。 (6) A waste compression molding device as described in any one of (1), (4), and (5), in which the protrusions are arranged so that their longitudinal direction is the same as the rotation axis of the screw.
（７）突起部は千鳥状に配置されている（６）に記載の廃棄物の圧縮成形装置。 (7) A waste compression molding device as described in (6) in which the protrusions are arranged in a staggered pattern.
（８）スクリューの回転軸心の方向が上下方向である（１）から（７）のいずれかに記載の廃棄物の圧縮成形装置。 (8) A waste compression molding device according to any one of (1) to (7), in which the rotation axis of the screw is oriented in the vertical direction.
（９）ケーシングは、上下方向に配置された円筒状の胴体と、胴体の下部に設けられた底胴部とを有し、底胴部は下部ほど縮径する円錐台状の筒であり、排出部が底胴部の下部に設けられ、スクリューの羽根が底胴部内に収容され、突起部が底胴部の内周面に設けられている（８）に記載の廃棄物の圧縮成形装置。 (9) The waste compression molding device described in (8) in which the casing has a cylindrical body arranged in the vertical direction and a bottom body provided at the lower part of the body, the bottom body being a truncated cone-shaped tube whose diameter decreases toward the bottom, the discharge part being provided at the lower part of the bottom body, the screw blades being housed within the bottom body, and the protrusions being provided on the inner peripheral surface of the bottom body.
（１０）スクリューの回転軸心の方向が水平方向である（１）から（７）のいずれかに記載の廃棄物の圧縮成形装置。 (10) A waste compression molding device according to any one of (1) to (7), in which the rotation axis of the screw is horizontal.
（１１）ケーシングは、前後方向に配置された円筒状の胴体と、胴体の後部に設けられた後胴部とを有し、後胴部は後部ほど縮径する円錐台状の筒であり、排出部が後胴部の後部に設けられ、スクリューの羽根が後胴部内に収容され、突起部が後胴部の内周面に設けられている（１０）に記載の廃棄物の圧縮成形装置。 (11) The waste compression molding device described in (10) in which the casing has a cylindrical body arranged in the front-to-rear direction and a rear body section provided at the rear of the body, the rear body section being a truncated cone-shaped tube whose diameter decreases toward the rear, the discharge section being provided at the rear of the rear body section, the screw blades being housed within the rear body section, and the protrusions being provided on the inner peripheral surface of the rear body section.

Claims (5)

  1. ケーシング内に投入された廃棄物をスクリューで圧縮して成形し排出する廃棄物の圧縮成形装置であって、
    ケーシングと、廃棄物をケーシング内に投入する投入部と、圧縮された廃棄物をケーシング内から排出する排出部と、投入部からケーシング内に投入された廃棄物を排出部の方へ送りながら圧縮する回転自在なスクリューとを有し、
    ケーシングの内周面に、廃棄物がスクリューと供回りするのを防止する複数の突起部が設けられ、
    前記複数の突起部はスクリューの回転軸心方向において間隔をあけて断続的に配置され、
    スクリューの回転軸心方向において隣り合う突起部間に、廃棄物が通過可能な通路が形成されていることを特徴とする廃棄物の圧縮成形装置。     A waste compression molding device that compresses waste introduced into a casing with a screw, molds the waste, and discharges the molded waste,
    The waste treatment device has a casing, an input section for inputting waste into the casing, a discharge section for discharging the compressed waste from inside the casing, and a rotatable screw for compressing the waste input into the casing from the input section while sending it toward the discharge section,
    A plurality of protrusions are provided on the inner circumferential surface of the casing to prevent the waste from rotating together with the screw;
    The plurality of protrusions are arranged intermittently at intervals in the rotation axial direction of the screw,
    1. A waste compression molding device, comprising: a passageway through which waste can pass formed between adjacent protrusions in the direction of the rotation axis of the screw.
  2. 前記複数の突起部のうち少なくとも１つの突起部は、スクリューの回転軸心に対して、スクリューの回転方向に向いた第１端部がスクリューの回転方向とは反対方向に向いた第２端部よりも排出部の方向へ位置するように、傾斜していることを特徴とする請求項１記載の廃棄物の圧縮成形装置。 The waste compression molding device according to claim 1, characterized in that at least one of the multiple protrusions is inclined with respect to the rotation axis of the screw so that a first end facing the rotation direction of the screw is located closer to the discharge section than a second end facing in the opposite direction to the rotation direction of the screw.
  3. スクリューの回転軸心方向において互いに隣り合う一方の突起部の第１端部と他方の突起部の第２端部とが、スクリューの回転方向から見て、重なることを特徴とする請求項２記載の廃棄物の圧縮成形装置。 The waste compression molding device according to claim 2, characterized in that the first end of one protrusion and the second end of the other protrusion that are adjacent to each other in the direction of the screw's rotation axis overlap when viewed from the direction of the screw's rotation.
  4. 排出部は、スクリューの回転軸心方向から見て、スクリューの回転軸心と前記複数の突起部のうち少なくとも１つの突起部とを通る直線上に存在することを特徴とする請求項１記載の廃棄物の圧縮成形装置。 The waste compression molding device according to claim 1, characterized in that the discharge portion is located on a straight line passing through the screw's rotation axis and at least one of the multiple protrusions when viewed from the direction of the screw's rotation axis.
  5. 前記複数の突起部はスクリューの回転方向におけるケーシング内の複数箇所に配設されていることを特徴とする請求項１記載の廃棄物の圧縮成形装置。 The waste compression molding device according to claim 1, characterized in that the multiple protrusions are arranged at multiple locations inside the casing in the rotational direction of the screw.
PCT/JP2023/043662 2022-12-14 2023-12-06 Compression molding device for waste WO2024128096A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243710U (en) * 1985-09-02 1987-03-16
JPH0691727A (en) * 1992-09-14 1994-04-05 Sekisui Plastics Co Ltd Extruder for recovering plastic
JP2018008444A (en) * 2016-07-14 2018-01-18 株式会社御池鐵工所 Extruder
CN110919909A (en) * 2019-10-25 2020-03-27 青岛科技大学 Efficient continuous waste rubber regeneration equipment and preparation method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243710U (en) * 1985-09-02 1987-03-16
JPH0691727A (en) * 1992-09-14 1994-04-05 Sekisui Plastics Co Ltd Extruder for recovering plastic
JP2018008444A (en) * 2016-07-14 2018-01-18 株式会社御池鐵工所 Extruder
CN110919909A (en) * 2019-10-25 2020-03-27 青岛科技大学 Efficient continuous waste rubber regeneration equipment and preparation method

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