Swinging Sorter

Abstract

To provide a shaking separator capable of suppressing incursion of a waste in a gap between screen members.SOLUTION: A shaking separator 1 comprises a plurality of strip-like screen members 30. The screen members 30 are arranged in a width direction, and the front ends of the screen members 30 are arranged above the rear ends 30b. The screen members 30 are shaken horizontally and vertically, and the screen members 30 adjacent to each other are shaken with phases shifted from each other. Each of the screen members 30 has a wall part 35 erected at both ends in a width direction and extending in the horizontal direction. A slope 36 is formed at the upper end of the outer surface 35a of the wall part 35 so as to be closer to the inner surface 35b of the wall part 35 toward the upper side.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a shaking separator for separating waste materials. [Background technology]

[0002] In recent years, from the viewpoint of effective resource utilization, there is a demand for reuse of waste as recyclable resources. For example, mixed waste discharged from a demolition site of a house or the like contains concrete, wood, etc. An example of a conventional vibration separator for separating such mixed waste is disclosed in Patent Document 1.

[0003] The oscillating sorter of Patent Document 1 has a plurality of rectangular screens. The screens are sieve members with a large number of holes. The screens are arranged in the width direction, and the front end of each screen is disposed above the rear end. The screens are oscillated in the front-rear and up-down directions. Adjacent screens are oscillated with different timing (phase) from each other. As a result, when mixed waste is dropped onto the screens, small waste passes through the many holes in the screens and falls downward, light waste moves forward, and heavy waste moves backward, thereby sorting the mixed waste. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-88114 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned sorting machine, sawtooth members are attached to each screen. The sawtooth members are erected at both ends of the screen in the width direction and extend in the longitudinal direction of the screen. In order to prevent waste from falling through gaps between adjacent screens, each screen is arranged close to each other in the width direction. However, waste may enter these gaps and be crushed and pressed against each screen. This may hinder the rocking of the screens.

[0006] Therefore, an object of the present invention is to provide a vibration sorting machine that can prevent waste from entering the gaps between sieve members. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, one embodiment of the present invention is an oscillating sorting machine having a plurality of rectangular sieve members extending in the front-to-rear direction and arranged in the width direction, the front ends of the plurality of sieve members are positioned higher than the rear ends, the plurality of sieve members are oscillated in the front-to-rear and up-down directions, and adjacent sieve members are oscillated out of phase with each other, each of the plurality of sieve members has a wall portion extending in the front-to-rear direction and erected at both ends in the width direction, and an inclined surface is formed at the upper end of the outer surface of the wall portion that approaches the inner surface of the wall portion as it moves upward.

[0008] According to the present invention, each of the plurality of sieve members has a wall portion extending in the front-rear direction and erected at both ends in the width direction. An inclined surface is formed at the upper end of the outer surface of the wall portion, which approaches the inner surface of the wall portion as it goes upward. As a result, a concave space (waste retention space) is formed at the end of the width direction of the sieve member by the inclined surface, and when waste enters the space and is about to become stuck in the gap between the adjacent sieve members, the inclined surface receives the waste. Me This can prevent waste from entering the gaps.

[0009] In the present invention, the angle of the inclined surface with respect to the vertical direction is preferably 21 degrees or more and 47.5 degrees or less. The angle is more preferably 38 degrees or more and 47.5 degrees or less. In this way, waste can be more effectively prevented from entering the gaps between adjacent sieve members.

[0010] In the present invention, it is preferable that the oscillating separator has a first air jet nozzle disposed above the sieve members and directed downward, and the first air jet nozzle is oscillated in the width direction. In this way, entanglement of the mixed waste on the sieve members can be untangled, and the mixed waste can be more effectively separated.

[0011] In the present invention, it is preferable that the oscillating separator has a housing that houses the plurality of sieve members and a second air ejection nozzle, the housing is disposed above the plurality of sieve members and has an inlet facing laterally, the downstream end of the conveyor is disposed at or near the inlet, and the second air ejection nozzle is disposed so that the air ejected by the second air ejection nozzle passes through a location below the downstream end of the conveyor and the inlet and hits the inner surface of the housing. In this way, the air ejected from the second air ejection nozzle toward the inside of the housing can be applied to the mixed waste falling from the downstream end of the conveyor. Therefore, by adjusting the volume of air ejected from the second air ejection nozzle, only the super-heavy materials in the mixed waste can be dropped outside the housing, and the materials other than the super-heavy materials can be blown into the housing. This prevents the super-heavy materials from falling into the sieve member when the mixed waste contains super-heavy materials that are heavier than the heavy materials, and suppresses damage to the sieve member.

[0012] In the present invention, it is preferable that the oscillating separator has an inclined plate arranged to receive waste falling from the downstream end of the conveyor, one end of the inclined plate is arranged inside the inlet and the other end is arranged outside the inlet, the one end is arranged higher than the other end, and the second air jet nozzle is arranged so that the air jetted by the second air jet nozzle moves on the inclined plate. In this way, the mixed waste received by the inclined plate has a slower speed in the falling direction, and the air jetted by the second air jet nozzle hits the mixed waste on the inclined plate, so that only the super-heavy waste among the mixed waste can be more efficiently dropped outside the housing, and the waste other than the super-heavy waste can be blown into the housing. In this way, when the mixed waste contains super-heavy waste, the super-heavy waste can be prevented from falling onto the sieve member, and damage to the sieve member can be more effectively suppressed.

[0013] In the present invention, it is preferable that the oscillating separator is disposed below the plurality of sieve members, has a cleaning water jet pipe extending in the width direction, has a jet outlet for jetting cleaning water on the outer circumferential surface of the cleaning water jet pipe, and is rotatable around an axis. In this way, it is possible to efficiently wash the plurality of sieve members while preventing relatively large waste from colliding with the cleaning water jet pipe.

[0014] In the present invention, it is preferable that the oscillating sorter has a housing that houses the plurality of sieve members and a cleaning water jet nozzle, the housing has an inlet that is arranged above the plurality of sieve members and faces upward, and an upper wall portion that is arranged rearward of the inlet, the cleaning water jet nozzle is arranged above the plurality of sieve members in the housing and faces downward, and the cleaning water jet nozzle is movable between a position below the upper wall portion and a position below the inlet. In this way, the cleaning water jet nozzle can move in the front-rear direction between a position below the upper wall portion and a position below the inlet, thereby efficiently cleaning the plurality of sieve members. In addition, by moving the cleaning water jet nozzle to a position below the upper wall portion, it is possible to prevent waste input into the inlet from colliding with the cleaning water jet nozzle.

[0015] In the present invention, it is preferable that the oscillating separator has a oscillating mechanism for oscillating the plurality of sieve members, the oscillating mechanism has a plurality of oscillating units, each of the plurality of oscillating units has a rotating shaft, a circular eccentric plate fixed to the rotating shaft, and a rotating member rotatably supported by the eccentric plate and to which the sieve member is fixed, the rotating shafts of each of the plurality of oscillating units are arranged in a straight line, and adjacent rotating shafts are connected to each other by a connecting member. In this way, it is possible to replace each oscillating unit. Therefore, it is possible to shorten the downtime due to maintenance of the oscillating mechanism and reduce the maintenance cost.

[0016] In the present invention, it is preferable that the connecting member has a cylindrical shape with the rotating shaft disposed inside, and the rocking mechanism has a bearing that rotatably supports the connecting member. For example, in a configuration in which the rotating shaft of the rocking unit is supported by a bearing, it is necessary to remove the rotating shaft from the bearing and the connecting member when replacing the rocking unit. On the other hand, in a configuration in which the connecting member is supported by a bearing, it is only necessary to remove the rotating shaft of the rocking unit from the connecting member. Therefore, the rocking unit can be replaced more easily.

[0017] In order to achieve the above-mentioned object, another embodiment of the present invention provides an oscillating sorting machine having a plurality of rectangular sieve members extending in the front-to-rear direction and arranged in the width direction, the front ends of the plurality of sieve members are positioned higher than the rear ends, the plurality of sieve members are oscillated in the front-to-rear and up-down directions, and adjacent sieve members are oscillated out of phase with each other, each of the plurality of sieve members has two wall portions extending in the front-to-rear direction and a plurality of dorsal fin portions arranged in the front-to-rear direction, the two wall portions are erected at both ends of the width direction of the sieve member, an inclined surface is formed at the upper end of the outer surface of the wall portions that approaches the inner surface of the wall portions as it extends upward, the plurality of dorsal fin portions are erected between the two wall portions, and each of the plurality of dorsal fin portions has an inclined portion arranged on the front side and an arc portion arranged on the rear side.

[0018] In the present invention, it is preferable that a flat portion is disposed between the two dorsal fin portions aligned in the front-rear direction, and the length of the flat portion in the front-rear direction is 0.5 to 1 times the length of the dorsal fin portions in the front-rear direction.

[0019] In order to achieve the above object, a rocking sorter according to another aspect of the present invention is a rocking sorter having a plurality of rectangular sieve members, the plurality of sieve members extending in a front-to-rear direction and arranged in a width direction, the front ends of the plurality of sieve members are disposed higher than the rear ends, the plurality of sieve members are rocked in the front-to-rear direction and in the up-down direction, and adjacent sieve members are rocked out of phase with each other, each of the plurality of sieve members has a wall portion extending in the front-to-rear direction and erected at both ends in the width direction, and an inclined surface is formed at the upper end of the outer surface of the wall portion, the inclined surface approaching the inner surface of the wall portion as it extends upward, the rocking sorter has a rocking mechanism for rocking the plurality of sieve members, the rocking mechanism has a plurality of rocking units, and each of the plurality of rocking units has a rotating shaft and a rotating shaft fixed to the rotating shaft. The sieve member is fixed to the sieve member by connecting members that connect the rotating shafts of the oscillating units to each other. The oscillating unit further comprises a swivel bearing disposed between the eccentric plate and the swivel member, a disk member fixed to the eccentric plate, and an annular plate member fixed to the swivel member. The oscillating unit further comprises a swivel bearing disposed between the eccentric plate and the swivel member, a disk member fixed to the eccentric plate, and an annular plate member fixed to the swivel member. The oscillating unit further comprises a first convex portion and a first concave portion on an outer peripheral surface of the disk member, a second convex portion and a second concave portion on an inner peripheral surface of the annular plate member, the first convex portion being arranged at a distance inside the second concave portion and the second convex portion being arranged at a distance inside the first concave portion, and a gap is formed around the entire circumference between the disk member and the annular plate member.

[0020] In the present invention, it is preferable that the oscillating unit has a disk-shaped or annular plate-shaped cover member fixed to the eccentric plate, or a circular plate-shaped cover member fixed to the rotating member, and that the cover member is arranged to cover the gap. Effect of the Invention

[0021] According to the present invention, it is possible to prevent waste from entering the gaps between the sieve members. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a diagram showing the configuration of a shaking separator according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 2 is an enlarged view of an inlet of a housing of a vibration sorting machine and its vicinity. [Diagram 5] FIG. 4 is a plan view showing a plurality of sieve members. [Figure 6] FIG. 4 is a side view of a portion of the sieve member and the rocking unit. [Figure 7] FIG. 4 is a cross-sectional view of a sieve member and a swinging unit. [Figure 8] FIG. 11 is another cross-sectional view of the sieve member and the rocking unit. [Figure 9] FIG. 4 is a perspective view of a portion of a sieve member. [Figure 10] FIG. 4 is an enlarged cross-sectional view of a portion of the sieve member. [Figure 11] 11 is a diagram showing the angle of the inclined surface of the wall portion of the sieve member and the evaluation results thereof. FIG. [Figure 12] FIG. 4 is a rear view of the sieve member and the swinging unit. [Figure 13] 4A to 4C are diagrams illustrating the configuration of a first air ejection section. [Figure 14] FIG. 11 is a diagram showing an example of the relationship between the ratio of heavy and light materials contained in mixed waste and the swing speed and air volume of a first air ejection nozzle. [Figure 15] FIG. 11 is a diagram showing an example of the relationship between the ratio of heavy and light materials contained in mixed waste and the angle of a sieve member and the swing angle of a first air ejection nozzle. [Figure 16] 11 is a diagram showing an example of the relationship between the width of the belt conveyor and the air volume of a second air ejection nozzle. FIG. [Figure 17] FIG. 2 is a diagram showing a configuration of a modified example of the vibration separator of FIG. [Figure 18] FIG. 18 is a plan view of the shaking separator of FIG. [Figure 19] 18 is a diagram for explaining the configuration of a wash water jetting section of the oscillating separator of FIG. 17. [Figure 20] 13A and 13B are diagrams illustrating a hook portion of the sieve member. [Figure 21] FIG. 11 is another enlarged cross-sectional view of a portion of the sieve member. [Figure 22] FIG. 11 is a cross-sectional view showing a modified example of the swing unit. [Figure 23] 23 is an enlarged cross-sectional view of a part of the rocking unit of FIG. 22. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an oscillation sorter according to one embodiment of the present invention will be described with reference to Figs.

[0024] FIG. 1 is a diagram showing the configuration of a rocking separator according to an embodiment of the present invention. FIG. 2 is a plan view of the rocking separator. FIG. 3 is a rear view of the rocking separator. FIG. 4 is an enlarged view of an inlet of a housing of the rocking separator and its vicinity. FIG. 1 and FIG. 4 show a state seen from the side through the housing of the rocking separator. FIG. 5 is a plan view showing a plurality of sieve members of the rocking separator. FIG. 6 is a side view of a portion of the sieve member and the rocking unit. FIG. 7 and FIG. 8 are cross-sectional views of the sieve member and the rocking unit. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. FIG. 8 shows a state in which the rotation axis of the rocking unit is rotated 180 degrees from the state shown in FIG. 7. FIG. 9 is a perspective view of a portion of the sieve member. FIG. 10 is a cross-sectional view showing an enlarged portion of an adjacent sieve member. FIG. 11 is a diagram showing the angle of the inclined surface of the wall portion of the sieve member and the judgment result. FIG. 12 is a rear view of the sieve member and the swinging unit. FIG. 13 is a diagram for explaining the configuration of the first air ejection section. FIG. 13 shows a state seen from the rear direction through the housing of the swinging sorter. In FIG. 3 and FIG. 13, only the part of the sieve member facing the rear side is shown. FIG. 14 is a diagram showing an example of the relationship between the ratio of heavy and light materials contained in the mixed waste, and the swing speed and air volume of the first air ejection nozzle. FIG. 15 is a diagram showing an example of the relationship between the ratio of heavy and light materials contained in the mixed waste, the angle of the sieve member and the swing angle of the first air ejection nozzle. FIG. 16 is a diagram showing an example of the relationship between the width of the belt conveyor and the air volume of the second air ejection nozzle. In each figure, the X direction indicated by the arrow X is the left-right direction (width direction), the Y direction indicated by the arrow Y is the front-back direction, and the Z direction indicated by the arrow Z is the up-down direction. In the arrow X, the letter "X" is the right side, in the arrow Y the letter "Y" is the rear, and in the arrow Z the letter "Z" is the top. The left-right and front-back directions are also called lateral directions.

[0025] The oscillating sorter of this embodiment separates mixed waste into small waste, light waste, heavy waste, and very heavy waste.

[0026] As shown in FIG. 1, the oscillating sorting machine 1 has a housing 10, an inclined plate 20, a plurality of sieve members 30, a oscillating mechanism 50, a first air jet section 60, a second air jet section 70, a third air jet section 80, and a plurality of cleaning water jet pipes 90.

[0027] The housing 10 has a box shape overall. As shown in Figs. 1 to 4, the housing 10 is provided with an inlet 11 and a terrace section 12. The inlet 11 opens toward the rear. The downstream end 5a of the belt conveyor 5 that transports the mixed waste is disposed at or near the inlet 11. The mixed waste may be transported by a transport device of a type other than the belt conveyor 5. The terrace section 12 is disposed on the rear side of the inlet 11. The front end of the upper surface 12a of the terrace section 12 is disposed higher than the rear end, and the upper surface 12a is inclined downward from the front to the rear. A sorting space 13 for sorting the mixed waste is formed inside the housing 10. The housing 10 is provided with an exhaust port 14 that faces forward.

[0028] The inclined plate 20 is disposed at the insertion port 11. As shown in FIG. 4, the inclined plate 20 has a fixed portion 21, a movable portion 22, and an actuator 25. The fixed portion 21 has a flat plate shape and is fixed to the housing 10. The front end of the fixed portion 21 is disposed above the rear end, and the fixed portion 21 is inclined downward from the front to the rear. The movable portion 22 has a base portion 23 and a receiving portion 24. The base portion 23 has a flat plate shape and is slidably stacked on the upper surface of the fixed portion 21. In this embodiment, the sliding distance H of the base portion 23 is 180 mm. The receiving portion 24 has a flat plate shape and is connected to the front end of the base portion 23. The front end of the receiving portion 24 is disposed above the rear end, and the receiving portion 24 is inclined downward from the front to the rear. The inclination angle of the base portion 23 (the angle of the base portion 23 with respect to the front-rear direction) is the same as the inclination angle of the fixed portion 21. The inclination angle of the receiving portion 24 is smaller than the inclination angle of the base portion 23. The actuator 25 slides the movable portion 22 relative to the fixed portion 21.

[0029] The inclined plate 20 is disposed below the downstream end 5a of the belt conveyor 5. The front end of the inclined plate 20 (the front end of the receiving portion 24 of the movable portion 22) is disposed inside the inlet 11. The rear end of the inclined plate 20 (the rear end of the fixed portion 21) is disposed outside the inlet 11 and is connected to the upper surface 12a of the terrace portion 12. The inclined plate 20 is disposed so as to receive the mixed waste that falls from the downstream end 5a of the belt conveyor 5. In this embodiment, the position of the movable portion 22 of the inclined plate 20 is adjusted so that the mixed waste falls from the downstream end 5a of the belt conveyor 5 onto the receiving portion 24 of the movable portion 22 (or a portion of the base portion 23 near the receiving portion 24).

[0030] As shown in FIG. 5, the sieve members 30 have a rectangular shape. The sieve members 30 extend in the front-rear direction (including roughly the front-rear direction, the same applies below to the sieve members 30 and their constituent members) below the inlet 11 in the sorting space 13 and are arranged in parallel with each other in the width direction. The front end 30a of the sieve member 30 is disposed above the rear end 30b, and the sieve member 30 is inclined downward from the front end 30a to the rear end 30b. The inclination angle θ of the sieve member 30 with respect to the front-rear direction can be adjusted, for example, within a range of 5 to 30 degrees. As shown in FIGS. 6 to 9, the sieve member 30 has two frames 31, a main body 32, a screen 37, and multiple anti-slip members 40. The two frames 31, the main body 32, and the screen 37 extend in the front-rear direction. The sieve member 30 is fixed to a rotating member 54 of the swinging mechanism 50.

[0031] The two frames 31 have a rectangular prism shape and are arranged parallel to each other with a gap in the width direction.

[0032] The main body 32 has a central portion 33, two flange portions 34, and two wall portions 35. The central portion 33 has a square gutter shape. The central portion 33 is disposed between the two frames 31. The two flange portions 34 are connected to the two upper ends of the central portion 33. The flange portions 34 are disposed on the upper surface of the frame 31. The two wall portions 35 are connected to the outer ends of the two flange portions 34 in the width direction. The two wall portions 35 extend in the front-rear direction. The two wall portions 35 stand upright at both ends of the sieve member 30 in the width direction. The outer surface 35a of the wall portion 35 is flush with the outer surface 31a of the frame 31. That is, the outer surface 35a of the wall portion 35 and the outer surface 31a of the frame 31 are disposed on the same plane. The main body 32 is formed by pressing a rectangular metal plate. Outer surfaces 35a of the two wall portions 35 face outward in the width direction, and inner surfaces 35b of the two wall portions 35 face each other in the width direction.

[0033] An inclined surface 36 is formed at the upper end of the outer surface 35a of the wall portion 35. The inclined surface 36 is inclined so as to approach the inner surface 35b of the wall portion 35 as it goes upward. Note that the inclined surface 36 of the wall portion 35 may be omitted.

[0034] The screen 37 has a screen body 38 and two comb-tooth portions 39. The screen body 38 has a plate shape. The screen body 38 has a number of holes 38a. The number of holes 38a are formed to a size that allows waste to be sorted as small diameter objects to pass through and prevents waste to be sorted as light objects and heavy objects from passing through. The screen body 38 may have a mesh shape. The screen body 38 is bridged between the two flange portions 34 of the main body 32. An opening (not shown) is formed in the center portion 33 of the main body 32 so that small diameter objects that pass through the number of holes 38a fall downward. The two comb-tooth portions 39 have a plate shape and are connected to both ends of the screen body 38 in the width direction. The two comb-tooth portions 39 extend in the front-rear direction. The two comb-tooth portions 39 have rectangular convex portions 39a and rectangular concave portions 39b arranged alternately. The two comb-tooth portions 39 are disposed on the inner side in the width direction of the two wall portions 35 of the main body 32. The screen 37 may have a saw-tooth portion having triangular sawtooth instead of the comb-tooth portion 39. The wall portions 35 may be omitted, in which case the comb-tooth portions 39 may stand upright at both ends in the width direction of the sieve member 30. The screen 37 is formed by pressing a rectangular metal plate.

[0035] The screen 37 may have, for example, two hooking portions 139 shown in Figs. 20A and 20B instead of the two comb-tooth portions 39. Fig. 20A is a view of the hooking portion 139 viewed from the width direction. Fig. 20B is an enlarged view of one dorsal fin portion 139a of the hooking portion 139. The left side of Figs. 20A and 20B is the front, and the right side is the rear. The two hooking portions 139 have a plate shape and are connected to both ends of the screen main body 38 in the width direction. The two hooking portions 139 extend in the front-rear direction. The two hooking portions 139 have dorsal fin portions 139a and flat portions 139b arranged alternately. The two hooking portions 139 are arranged on the inner side in the width direction of the two wall portions 35 of the main body 32. The dorsal fin 139a has an inclined portion 139a1 arranged on the front side, an arc portion 139a2 arranged on the rear side, and a linear connecting portion 139a3 connecting the inclined portion 139a1 and the arc portion 139a2. The dorsal fin 139a may omit the connecting portion 139a3 and directly connect the inclined portion 139a1 and the arc portion 139a2. A flat portion 139b is arranged between the dorsal fins 139a arranged in the front-rear direction. The flat portion 139b connects the arc portion 139a2 of the dorsal fin 139a on the front side to the inclined portion 139a1 of the dorsal fin 139a on the rear side. The length of the flat portion 139b in the front-rear direction is preferably 0.5 to 1 times the length of the dorsal fin 139a in the front-rear direction. This makes it easier for small, lightweight objects to be caught by the dorsal fin 139a. The length of the flat portion 139b in the front-to-rear direction may be less than 0.5 of the length of the dorsal fin portion 139a in the front-to-rear direction, and the flat portion 139b may be omitted.

[0036] The multiple dorsal fin portions 139a protrude upward from both widthwise ends of the screen main body 38 and are arranged in two rows in the front-to-rear direction. The multiple dorsal fin portions 139a are erected between the two wall portions 35. Each of the multiple dorsal fin portions 139a has an inclined portion 139a1 arranged on the front side and an arc portion 139a2 arranged on the rear side.

[0037] In the hook portion 139 shown in FIGS. 20A and 20B, the angle formed between the flat portion 139b and the inclined portion 139a1 of the dorsal fin portion 139a is 110 degrees.

[0038] In the multiple dorsal fins 139a, light objects are likely to get caught on the front inclined portion 139a1 of the dorsal fins 139a, but are unlikely to get caught on the rear arc portion 139a2. In addition, the arc portion 139a2 bounces up the waste, while small diameter objects efficiently fall downward through the numerous holes 38a of the screen 37. This allows the mixed waste to be separated more effectively.

[0039] The multiple anti-slip members 40 are arranged at intervals in the front-rear direction on the upper surface of the screen main body 38. Each anti-slip member 40 is formed with an L-shaped cross section. Each anti-slip member 40 extends in the width direction between two comb-tooth portions 39.

[0040] As shown in Fig. 10, in this embodiment, the size A of the gap between the outer surfaces 35a of the respective wall portions 35 of adjacent sieve members 30 is 4 mm. The height B of the inclined surface 36 is 5 mm. The size C of the gap between the inner surfaces 35b of the respective wall portions 35 of adjacent sieve members 30 is a maximum of 15 mm. The angle α of the inclined surface 36 with respect to the vertical direction is 45 degrees.

[0041] 21, the height from the frame 31 of the wall portion 35 may be lower than that of the comb-tooth portion 39. The size of the gap E between the outer surfaces of the comb-tooth portions 39 of adjacent sieve members 30 is preferably 15 mm or more. The outer surface of the comb-tooth portion 39 may be spaced from the inner surface 35b of the wall portion 35, or may be in contact with the inner surface 35b of the wall portion 35. The same applies to a configuration in which a hook portion 139 is used instead of the comb-tooth portion 39.

[0042] The inclined surfaces 36 of the adjacent sieve members 30 form a space into which waste enters (waste retention space S1). The waste retention space S1 is a space that narrows from top to bottom. The waste retention space S1 is connected to the gaps S2 between the adjacent sieve members 30. The size of the gap between the upper ends of the inclined surfaces 36 of the adjacent sieve members 30 (the size D of the opening of the waste retention space S1) is a value that depends on the angle α of the inclined surfaces 36.

[0043] GapThe difficulty F of waste entering the space S2 is simply assumed to be proportional to the size D of the opening, which is a value according to the angle α. and, Difficulty of waste entering gap S2 F show.

[0047] The rocking mechanism 50 rocks the sieve members 30 in the front-rear and up-down directions. The rocking mechanism 50 has a driving unit 50A and a driven unit 50B. The driving unit 50A is disposed near the rear ends 30b of the sieve members 30. The driven unit 50B is disposed near the front ends 30a of the sieve members 30.

[0048] The driving portion 50A has a plurality of oscillating units 51, a plurality of bearings 58, and a motor 59. The driven portion 50B has a plurality of oscillating units 51, and a plurality of bearings 58.

[0049] As shown in FIG. 12, the swing unit 51 has a rotating shaft 52, two eccentric plates 53, and two swivel members 54. Two eccentric plates 53 are fixed to the rotating shaft 52. The eccentric plates 53 have a disk shape. The rotating shaft 52 penetrates the two eccentric plates 53 at positions offset from the center. The eccentric plates 53 are arranged so that one eccentric plate 53 rotates out of phase with respect to the other eccentric plate 53 when the rotating shaft 52 is rotated around its axis. In this embodiment, the phase difference between one eccentric plate 53 and the other eccentric plate 53 is 60 degrees or 90 degrees. The swivel member 54 is rotatably supported by the eccentric plate 53. Specifically, the swivel member 54 has two swivel bearings 55, and the eccentric plate 53 is fitted inside the two swivel bearings 55. Two frames 31 of the sieve member 30 are fixed to the swivel member 54. The swivel bearing 55 is, for example, a radial ball bearing.

[0050] The rotating shafts 52 of the multiple oscillating units 51 are arranged in a straight line, and adjacent rotating shafts 52 are connected to each other by a connecting member 56. In this embodiment, the connecting member 56 has a cylindrical shape, and the rotating shafts 52 are disposed inside the connecting member 56. A key groove (not shown) extending in the axial direction is formed on one of the rotating shafts 52 and the connecting member 56, and a key protrusion (not shown) that fits into the key groove is formed on the other. The connecting member 56 transmits rotation between two adjacent rotating shafts 52. Inside the connecting member 56, the two rotating shafts 52 may be in contact with each other or may be separated from each other.

[0051] The multiple bearings 58 are fixed to a beam 15 provided in the housing 10. The beam 15 extends in the width direction, and the multiple bearings 58 are arranged on the beam 15 at intervals in the width direction. Of the multiple bearings 58, two bearings 58 arranged at both ends rotatably support the rotating shaft 52, and the remaining bearings 58 rotatably support the connecting member 56.

[0052] In the multiple swing units 51 of the driving part 50A, when the rotating shaft 52 is rotated by the motor 59, the eccentric plate 53 is eccentrically rotated, and the swivel member 54 rotatably supported by the eccentric plate 53 is swung in the front-rear direction and the up-down direction. The swing of the swivel member 54 is transmitted to the multiple swing units 51 of the driven part 50B via the sieve member 30. The eccentric plates 53 corresponding to the front-rear direction in the driving part 50A and the driven part 50B (i.e., two eccentric plates 53 supporting two swivel members 54 fixed to the front and rear parts of one sieve member 30) are rotated in phase with each other. Therefore, the multiple sieve members 30 are swung in the front-rear direction and the up-down direction while maintaining a parallel state with each other.

[0053] Fig. 22 is a cross-sectional view showing a modified example of the oscillating unit. Fig. 23 is an enlarged cross-sectional view of a portion (a portion indicated by a dashed line) of the oscillating unit of Fig. 22. As shown in Figs. 22 and 23, the oscillating unit 51 may have a foreign matter suppression mechanism 150. The foreign matter suppression mechanism 150 suppresses the intrusion of foreign matter into the orbiting bearing 55. The foreign matter suppression mechanism 150 has a disk member 151, an annular plate member 152, and a cover member 153.

[0054] The disk member 151 is fixed to the eccentric plate 53 by a bolt (not shown). The disk member 151 and the eccentric plate 53 are arranged coaxially. The rotating shaft 52 passes through the disk member 151. The annular plate member 152 is fixed to the rotating member 54 by a bolt (not shown). The disk member 151 is arranged coaxially inside the annular plate member 152. When the rotating member 54 rotates relative to the eccentric plate 53, the annular plate member 152 rotates relative to the disk member 151.

[0055] A first convex portion 151a and a first concave portion 151b are provided on the outer peripheral surface of the circular plate member 151. A second convex portion 152a and a second concave portion 152b are provided on the inner peripheral surface of the circular plate member 152. The first convex portion 151a of the circular plate member 151 is disposed inside the second concave portion 152b of the circular plate member 152. The second convex portion 152a of the circular plate member 152 is disposed inside the first concave portion 151b of the circular plate member 151. A gap 155 is provided around the entire circumference between the outer peripheral surface of the circular plate member 151 and the inner peripheral surface of the circular plate member 152 (between the convex portion and the concave portion), and the circular plate member 151 and the circular plate member 152 are not in contact with each other.

[0056] The outer diameter of the disc member 151 and the inner diameter of the annular plate member 152 are smaller than the outer diameter and larger than the inner diameter of the orbit bearing 55. Therefore, a gap 155 between the disc member 151 and the annular plate member 152 is aligned with the orbit bearing 55 in the axial direction (X direction).

[0057] The lid member 153 has an annular plate shape. The lid member 153 is fixed coaxially to the annular plate member 152. The inner diameter of the lid member 153 is smaller than the outer diameter of the disc member 151. The lid member 153 is disposed so as to cover the gap 155 between the disc member 151 and the annular plate member 152. There is a small gap between the lid member 153 and the disc member 151, and the lid member 153 and the disc member 151 are not in contact with each other. The lid member 153 may have a disc or annular plate shape and be fixed to the eccentric plate 53.

[0058] The gap 155 between the disk member 151 and the annular plate member 152 has a complex shape (labyrinth shape) in which a convex portion and a concave portion mesh with each other with a gap therebetween. In addition, the gap 155 is covered by the cover member 153. Therefore, the foreign matter suppression mechanism 150 can suppress the intrusion of foreign matter into the orbiting bearing 55.

[0059] As shown in FIG. 13, the first air ejection unit 60 has a plurality of first air ejection nozzles 61, a link 62, and an actuator 63. The plurality of first air ejection nozzles 61 are arranged inside the housing 10. The plurality of first air ejection nozzles 61 are arranged at intervals in the width direction above the sieve member 30, and each tip is directed downward. In this embodiment, the tip of the first air ejection nozzle 61 is directed to a location slightly rearward from the center in the front-rear direction on the upper surface of the sieve member 30. The tip of the first air ejection nozzle 61 is supported by the housing 10 so that it can swing in the width direction. Each of the first air ejection nozzles 61 is connected to the actuator 63 via a link 62, and swings in the width direction in synchronization with each other. The first air ejection unit 60 disentangles the mixed waste on the plurality of sieve members 30 by air ejected by the plurality of first air ejection nozzles 61, and promotes sorting of the mixed waste.

[0060] In this embodiment, the oscillation speed of the first air ejection nozzle 61 is 10 to 60 times per minute, the oscillation angle β is 20 to 65 degrees, and the air volume is a maximum of 1.2 m 3 / min, and the injection pressure is 0.3 to 0.9 MPa. For example, as shown in Figs. 14 and 15, the oscillation speed and air volume of the first air injection nozzle 61 are changed, and the angle θ of the sieve member 30 and the oscillation angle β of the first air injection nozzle 61 are changed according to the ratio of heavy and light materials contained in the mixed waste. The time for which air is ejected from the first air injection nozzle 61 may also be changed. In this way, the sorting of the mixed waste can be promoted more effectively and with less energy. In Fig. 14, the oscillation angle β is fixed at 65 degrees. In Fig. 15, the oscillation speed is fixed at 60 times / min.

[0061] The second air ejection section 70 has a second air ejection nozzle 71. The second air ejection nozzle 71 is disposed above the terrace section 12 of the housing 10. As shown in FIG. 4, the tip of the second air ejection nozzle 71 is disposed at or near the input port 11 and is directed obliquely upward and forward. The second air ejection nozzle 71 is movable in the direction in which the opening 71a faces (ejection direction). In this embodiment, the movable distance L of the second air ejection nozzle 71 is 140 mm. The second air ejection nozzle 71 is disposed so that the air ejected by the second air ejection nozzle 71 passes through the lower part of the downstream end 5a of the belt conveyor 5 and the input port 11 and hits the inner surface of the housing 10.

[0062] The second air ejection nozzle 71 is disposed so that the air ejected by the second air ejection nozzle 71 travels on the inclined plate 20. In this embodiment, the position of the receiving portion 24 is adjusted by the actuator 25 so that the receiving portion 24 of the movable portion 22 of the inclined plate 20 is close to (or disposed within) an area K obtained by extending the opening 71a of the second air ejection nozzle 71 to the inner surface of the housing 10 in the ejection direction. It is preferable that the receiving portion 24 is parallel to the ejection direction. The second air ejection nozzle 71 may be disposed so that the air ejected by the second air ejection nozzle 71 hits the base portion 23 of the movable portion 22 of the inclined plate 20, travels on the inclined plate 20, and hits the inner surface of the housing 10.

[0063] The second air ejection section 70 uses air ejected from the second air ejection nozzle 71 to blow away all items (small diameter items, light items and heavy items) other than the ultra-heavy items contained in the mixed waste that has fallen onto the inclined plate 20, toward the inside of the housing 10, so that the ultra-heavy items contained in the mixed waste roll down the inclined plate 20 and the upper surface 12a of the terrace section 12.

[0064] In this embodiment, the air volume of the second air ejection nozzle 71 is a maximum of 140 m 3 For example, by changing the air volume of the second air ejection nozzle 71 in accordance with the width of the belt conveyor 5 as shown in FIG.

[0065] The third air ejection section 80 has a third air ejection nozzle 81. Most of the third air ejection nozzle 81 is disposed outside the housing 10, and the tip of the third air ejection nozzle 81 is disposed inside the housing 10 and faces forward. The third air ejection nozzle 81 is disposed so that the air ejected by the third air ejection nozzle 81 passes above the multiple sieve members 30 and hits the inner surface of the housing 10. The third air ejection section 80 uses the air ejected by the third air ejection nozzle 81 to untangle the mixed waste on the upper surfaces of the multiple sieve members 30, facilitating the sorting of the mixed waste. In this embodiment, the air volume of the third air ejection nozzle 81 is a maximum of 200 m 3 The third air ejection nozzle 81 and the first air ejection nozzle 61 may eject air simultaneously, or one of them may stop ejecting air while the other one is ejecting air.

[0066] An air compressor (not shown) that supplies air is connected to the first air ejection nozzle 61. A blower (not shown) that supplies air is connected to the second air ejection nozzle 71 and the third air ejection nozzle 81.

[0067] The multiple cleaning water ejection pipes 90 are arranged at intervals in the front-rear direction below the multiple sieve members 30 and extend in the width direction. The cleaning water ejection pipes 90 are circular pipes. The multiple cleaning water ejection pipes 90 are supported by the housing 10 so as to be rotatable about an axis. The multiple cleaning water ejection pipes 90 are rotated about an axis by a rotation mechanism (not shown). The cleaning water ejection pipes 90 have multiple ejection ports (not shown) on their outer circumferential surfaces. The multiple ejection ports are arranged in one row or multiple rows spaced apart in the width direction. The cleaning water ejection pipe 90 is rotated about its axis while ejecting cleaning water from the multiple ejection ports, thereby washing away waste adhering to the multiple sieve members 30, the driving unit 50A, and the driven unit 50B.

[0068] In this embodiment, the cleaning water ejection pipe 90 ejects cleaning water at a pressure of 3 MPa or more from a plurality of ejection ports. The cleaning water may be hot water at a pressure of less than 3 MPa and a temperature of 40°C or more, or a gas-liquid two-phase flow containing microbubbles (microbubbles with a diameter of 1 to 100 μm or micro-nano bubbles with a diameter of several tens to several hundreds of nm).

[0069] The cleaning water jet pipe 90 may rotate at a low speed when the multiple jets are directed toward the center in the front-rear direction of the sieve member 30 (particularly the part where the mixed waste falls), and at a high speed otherwise. Alternatively, the cleaning water jet pipe 90 may jet a larger amount of cleaning water from the jets located at the center in the width direction and in its vicinity than from the jets located at both ends in the width direction. In this way, the parts of the sieve member 30 where dirt easily adheres (the part where the mixed waste falls and the center in the width direction and its vicinity) can be efficiently washed, and cleaning water can be saved.

[0070] Next, an example of the sorting operation in the shaking sorter 1 will be described.

[0071] The mixed waste transported to the inlet 11 by the belt conveyor 5 falls from the downstream end 5a of the belt conveyor 5 onto the inclined plate 20. Ultra-heavy materials contained in the mixed waste that falls onto the inclined plate 20 roll down the inclined plate 20 and the terrace section 12, and are accumulated behind the oscillating sorter 1. Materials other than the ultra-heavy materials contained in the mixed waste that falls onto the inclined plate 20 (small diameter materials, light materials, and heavy materials) are blown away by air ejected from the second air ejection nozzle 71, pass through the inlet 11, and fall onto the multiple sieve members 30.

[0072] The mixed waste on the multiple sieve members 30 is untangled by air ejected from the first air ejection nozzle 61 and the third air ejection nozzle 81, and each sieve member 30 is swung back and forth and up and down to separate the mixed waste into small diameter, light weight, and heavy weight items. Small diameter items pass through the numerous holes 38a in the screen 37 of the sieve member 30 and are accumulated below the sieve member 30. Light weight items move forward and drop from the front end 30a of the sieve member 30 to be accumulated. Heavy items move backward and drop from the rear end 30b of the sieve member 30 to be accumulated.

[0073] During intervals between sorting operations or after the end of the sorting operation, the cleaning water ejection pipe 90 is rotated about its axis while ejecting cleaning water from the multiple ejection ports to clean the multiple sieve members 30, the drive unit 50A and the driven unit 50B.

[0074] As described above, the oscillating separator 1 has a plurality of rectangular sieve members 30. The plurality of sieve members 30 extend in the front-rear direction and are arranged in the width direction. The front ends 30a of the plurality of sieve members 30 are disposed above the rear ends 30b. The plurality of sieve members 30 are oscillated in the front-rear direction and the up-down direction, and adjacent sieve members 30 are oscillated out of phase with each other. Each of the plurality of sieve members 30 has a wall portion 35 extending in the front-rear direction and erected at both ends in the width direction. An inclined surface 36 is formed at the upper end of the outer surface 35a of the wall portion 35, which approaches the inner surface 35b of the wall portion 35 as it moves upward. As a result, a concave waste retention space S1 is formed at the end of the width direction of the sieve member 30 by the inclined surface 36, and when waste enters the waste retention space S1 and is about to be caught in the gap between the adjacent sieve members 30, the inclined surface 36 receives the waste. Me This can prevent waste from entering the gaps.

[0075] In addition, the angle α of the inclined surface 36 with respect to the vertical direction is preferably 21 degrees or more and 47.5 degrees or less. It is more preferable that the angle α is 38 degrees or more and 47.5 degrees or less. In this way, waste can be more effectively prevented from entering the gaps between adjacent sieve members 30.

[0076] The oscillating sorter 1 is disposed above the sieve members 30 and has a first air ejection nozzle 61 facing downward. The first air ejection nozzle 61 is oscillated in the width direction. In this manner, tangles in the mixed waste on the sieve members 30 can be undone, and the mixed waste can be more effectively sorted.

[0077] The oscillating sorter 1 also has a housing 10 that houses a plurality of sieve members 30 and a second air ejection nozzle 71. The housing 10 is disposed above the plurality of sieve members 30 and has an inlet 11 facing backward. The downstream end 5a of the belt conveyor 5 is disposed at the inlet 11. The second air ejection nozzle 71 is disposed so that the air ejected by the second air ejection nozzle 71 passes through a portion below the downstream end 5a of the belt conveyor 5 and the inlet 11 and hits the inner surface of the housing 10. In this way, the air ejected from the second air ejection nozzle 71 toward the inside of the housing 10 can be applied to the mixed waste falling from the downstream end 5a of the belt conveyor 5. Therefore, by adjusting the volume of air ejected from the second air ejection nozzle 71, only the super-heavy materials in the mixed waste can be dropped outside the housing 10, and materials other than the super-heavy materials can be blown into the housing 10. As a result, if the mixed waste contains very heavy objects, the very heavy objects can be prevented from falling onto the sieve member 30, and damage to the sieve member 30 can be suppressed.

[0078] The oscillating sorter 1 also has an inclined plate 20 arranged to receive waste falling from the downstream end 5a of the belt conveyor 5. The front end (one end) of the inclined plate 20 is arranged inside the inlet 11, and the rear end (the other end) is arranged outside the inlet 11. The front end of the inclined plate 20 is arranged higher than the rear end. The second air ejection nozzle 71 is arranged so that the air ejected by the second air ejection nozzle 71 moves on the inclined plate 20. By doing so, the mixed waste received by the inclined plate 20 has a slower speed in the falling direction, and the air ejected by the second air ejection nozzle 71 hits the mixed waste on the inclined plate 20, so that only the super-heavy waste among the mixed waste can be more efficiently dropped outside the housing, and the waste other than the super-heavy waste can be blown into the housing 10. This prevents the super-heavy waste from falling onto the sieve member 30 when the mixed waste contains super-heavy waste, and more effectively suppresses damage to the sieve member 30.

[0079] The oscillating sorter 1 is disposed below the plurality of sieve members 30 and has a cleaning water ejection pipe 90 extending in the width direction. A plurality of ejection ports for ejecting cleaning water are provided on the outer peripheral surface of the cleaning water ejection pipe 90, and the cleaning water ejection pipe 90 is rotatable about its axis. In this manner, the plurality of sieve members 30 can be efficiently washed while preventing collision of relatively large waste with the cleaning water ejection pipe 90.

[0080] The oscillating sorter 1 also has a rocking mechanism 50 that rocks the sieve members 30. The rocking mechanism 50 has a plurality of rocking units 51. Each of the rocking units 51 has a rotating shaft 52, a circular eccentric plate 53 fixed to the rotating shaft 52, and a swivel member 54 rotatably supported by the eccentric plate 53 and to which the sieve members 30 are fixed. The rotating shafts 52 of each of the rocking units 51 are aligned in a straight line, and adjacent rotating shafts 52 are connected to each other by a connecting member 56. In this way, each rocking unit 51 can be replaced. Therefore, downtime due to maintenance of the rocking mechanism 50 can be shortened, and maintenance costs can be reduced.

[0081] Furthermore, the connecting member 56 has a cylindrical shape with the rotating shaft 52 disposed inside. The swing mechanism 50 has a bearing 58 that rotatably supports the connecting member 56. For example, in a configuration in which the rotating shaft 52 of the swing unit 51 is supported by the bearing 58, it is necessary to remove the rotating shaft 52 from the bearing 58 and the connecting member 56 when replacing the swing unit 51. On the other hand, in a configuration in which the connecting member 56 is supported by the bearing 58, it is only necessary to remove the rotating shaft 52 of the swing unit 51 from the connecting member 56. Therefore, the swing unit 51 can be replaced more easily.

[0082] A shaking sorter 1A according to a modified example of the above-mentioned shaking sorter 1 will be described with reference to Fig. 17 to Fig. 19. In the description of the shaking sorter 1A, components that are the same as (including substantially the same as) the components of the shaking sorter 1 are given the same reference numerals as the components of the shaking sorter 1, and detailed description thereof will be omitted.

[0083] Fig. 17 is a diagram showing the configuration of a modified example of the oscillating sorter of Fig. 1. Fig. 17 shows the state seen from the side through the housing of the oscillating sorter. Fig. 18 is a plan view of the oscillating sorter of Fig. 17. Fig. 19 is a diagram explaining the configuration of the cleaning water ejection section. Fig. 19 shows the state seen from the rear direction through the housing of the oscillating sorter of Fig. 17. In Fig. 19, only the part of the sieve member facing the rear side is shown.

[0084] As shown in FIGS. 17 to 19, the shaking separator 1A has a housing 10A, an inclined plate 20A, a plurality of sieve members 30, a shaking mechanism 50, and a wash water ejection unit 90A.

[0085] The housing 10A has an overall box shape. The housing 10A is provided with an inlet 11A, a hopper 16, and an upper wall portion 17. The inlet 11A is disposed above the plurality of sieve members 30 and opens upward. The hopper 16 is disposed so as to surround the inlet 11A. The upper wall portion 17 is disposed on the rear side of the inlet 11A. The downstream end 5a of the belt conveyor 5 that transports the mixed waste is disposed above the inlet 11A. A sorting space 13 for sorting the mixed waste is formed inside the housing 10A.

[0086] The inclined plate 20A is disposed so as to block the front of the input port 11A when viewed from above. The inclined plate 20A has a flat plate shape and is fixed to the housing 10A. The front end of the inclined plate 20A is disposed higher than the rear end, and the inclined plate 20A is inclined downward from the front to the rear. The inclined plate 20A is disposed below the downstream end 5a of the belt conveyor 5. The inclined plate 20A is disposed so as to receive the mixed waste that falls from the downstream end 5a of the belt conveyor 5.

[0087] The cleaning water jetting section 90A has two rails 91, a hanger 92, a plurality of cleaning water jetting nozzles 93, and an actuator (not shown).

[0088] The two rails 91 are attached to the inner surfaces of both side walls facing each other in the width direction of the housing 10A. The two rails 91 are arranged to extend in the front-rear direction above the multiple sieve members 30. The two rails 91 are parallel to each other. The front ends of the two rails 91 are arranged higher than the rear ends, and the two rails 91 are inclined downward from the front to the rear.

[0089] The hanger 92 has a columnar shape and extends in the width direction. Both ends of the hanger 92 are movably supported by two rails 91. The hanger 92 moves in the extension direction of the two rails 91 by an actuator. In this embodiment, the hanger 92 is movable between a position P1 below the upper wall portion 17 and a position P2 below the insertion port 11A (specifically, a position below the rear end of the inclined plate 20A).

[0090] The multiple cleaning water jetting nozzles 93 are attached to the hanger 92 at intervals in the width direction. The multiple cleaning water jetting nozzles 93 each have a tip facing downward. A hose 94 for supplying cleaning water is connected to the multiple cleaning water jetting nozzles 93. The multiple cleaning water jetting nozzles 93 jet cleaning water at a pressure of 3 MPa or more. The cleaning water may be hot water at a pressure of less than 3 MPa and a temperature of 40 degrees or more, or a gas-liquid two-phase flow containing microbubbles.

[0091] When the mixed waste is put into the inlet 11A, the actuator moves the hanger 92 and the multiple cleaning water jet nozzles 93 to position P1. This prevents the mixed waste put into the inlet 11A from colliding with the hanger 92 and the multiple cleaning water jet nozzles 93. Then, when the mixed waste is finished being put into the inlet 11A, the actuator moves the multiple cleaning water jet nozzles 93 together with the hanger 92 between position P1 and position P2 to wash away waste adhering to the multiple sieve members 30. When the mixed waste is put into the inlet 11A, the hanger 92 and the multiple cleaning water jet nozzles 93 may be moved to position P2. At position P2, the inclined plate 20A can prevent the mixed waste put into the inlet 11A from colliding with the hanger 92 and the multiple cleaning water jet nozzles 93.

[0092] The oscillating separator 1A has a housing 10A that houses a plurality of sieve members 30 and a cleaning water ejection nozzle 93. The housing 10A has an inlet 11A that is disposed above the plurality of sieve members 30 and faces upward, and an upper wall portion 17 that is disposed rearward of the inlet 11A. The cleaning water ejection nozzle 93 is disposed above the plurality of sieve members 30 in the housing 10A and faces downward. The cleaning water ejection nozzle 93 moves between a position P1 below the upper wall portion 17 and a position P2 below the inlet 11A. In this manner, the cleaning water ejection nozzle 93 moves in the front-rear direction between a position P1 below the upper wall portion 17 and a position P2 below the inlet 11A, and the plurality of sieve members 30 can be efficiently washed. Furthermore, by moving the cleaning water ejection nozzle 93 to the position P1 below the upper wall portion 17, it is possible to prevent the waste inserted into the insertion port 11A from colliding with the cleaning water ejection nozzle 93.

[0093] Although the embodiments of the present invention have been described above, the present invention is not limited to the configurations of the embodiments. Any addition, deletion, or design change of components by a person skilled in the art to the above-mentioned embodiments, or any combination of features of the embodiments as appropriate, is also included in the scope of the present invention as long as it does not go against the spirit of the present invention. [Explanation of symbols]

[0094] 1, 1A... Vibrating sorter, 5... Belt conveyor, 5a... Downstream end, 10, 10A... Housing, 11, 11A... Inlet, 12... Terrace portion, 12a... Upper surface, 13... Sorting space, 14... Exhaust port, 15... Beam, 16... Hopper, 17... Upper wall portion, 20, 20A... Inclined plate, 21... Fixed portion, 22... Movable portion, 23... Base portion, 24... Receiving portion, 25... Actuator, 30... Sieve member, 30a... Front end, 30b ...rear end, 31...frame, 31a...outer surface, 32...main body, 33...central portion, 34...flange portion, 35...wall portion, 35a...outer surface, 35b...inner surface, 36...inclined surface, 37...screen, 38...screen main body, 38a...hole, 39...comb tooth portion, 39a...projection portion, 39b...recess, 40...anti-slip member, 50...oscillating mechanism, 50A...driving portion, 50B...follower portion, 51...oscillating unit, 52...rotating shaft , 53...eccentric plate, 54...rotating member, 55...rotating bearing, 56...connecting member, 58...bearing, 59...motor, 60...first air ejection portion, 61...first air ejection nozzle, 62...link, 63...actuator, 70...second air ejection portion, 71...second air ejection nozzle, 71a...opening, 80...third air ejection portion, 81...third air ejection nozzle, 90...cleaning water ejection pipe, 90A...cleaning water ejection portion, 91 ...rail, 92...hanger, 93...cleaning water ejection nozzle, 94...hose, 139...hook portion, 139a...dorsal fin portion, 139a1...inclined portion, 139a2...arc portion, 139a3...connecting portion, 139b...flat portion, 150...foreign object suppression mechanism, 151...disk member, 151a...first convex portion, 151b...first concave portion, 152...annular plate member, 152a...second convex portion, 152b...second concave portion, 153...lid member

Claims

1. A shaking separator having a plurality of rectangular sieve members, The plurality of sieve members extend in the front-rear direction and are arranged in the width direction, The front ends of the plurality of sieve members are disposed above the rear ends thereof, The plurality of sieve members are swung in the front-back direction and the up-down direction, and adjacent sieve members are swung out of phase with each other, Each of the plurality of sieve members has a wall portion extending in the front-rear direction and erected at both ends in the width direction, A pulsating separator, characterized in that an inclined surface is formed at the upper end of the outer surface of the wall portion, the inclined surface approaching the inner surface of the wall portion as it extends upward.

2. 2. The vibration sorter according to claim 1, wherein an angle of the inclined surface with respect to the vertical direction is equal to or greater than 21 degrees and equal to or less than 47.5 degrees.

3. The shaking separator is disposed above the plurality of sieve members and has a first air jet nozzle directed downward; The shaking separator according to claim 1 , wherein the first air ejection nozzle is oscillated in the width direction.

4. The shaking separator has a housing that houses the plurality of sieve members and a second air ejection nozzle, the housing is disposed above the plurality of sieve members and has a laterally oriented inlet; A downstream end of a conveyor is disposed at or near the inlet, The oscillating sorter according to claim 1, wherein the second air ejection nozzle is positioned so that the air ejected from the second air ejection nozzle passes through a location below the downstream end of the conveyor and the inlet and hits the inner surface of the housing.

5. the oscillating separator having an inclined plate arranged to receive waste dropping from the downstream end of the conveyor; One end of the inclined plate is disposed inside the input port and the other end is disposed outside the input port, and the one end is disposed above the other end, 5. The shaking separator according to claim 4, wherein the second air jet nozzle is disposed so that the air jetted from the second air jet nozzle travels on the inclined plate.

6. The shaking separator is disposed below the plurality of sieve members and has a cleaning water ejection pipe extending in a width direction, A jet port for jetting the cleaning water is provided on the outer circumferential surface of the cleaning water jet pipe, 2. The shaking separator according to claim 1, wherein the washing water jet pipe is rotatable about an axis.

7. The shaking separator has a housing that houses the plurality of sieve members and a cleaning water ejection nozzle, The housing is disposed above the plurality of sieve members and has an upwardly directed input port and an upper wall portion disposed rearward of the input port, The cleaning water ejection nozzle is disposed above the plurality of sieve members in the housing and faces downward, 2. The shaking separator according to claim 1, wherein the cleaning water ejection nozzle is movable between a position below the upper wall portion and a position below the inlet.

8. The shaking sorter has a shaking mechanism that shakes the plurality of sieve members, The rocking mechanism has a plurality of rocking units, Each of the plurality of swinging units has a rotating shaft, a circular eccentric plate fixed to the rotating shaft, and a rotating member rotatably supported by the eccentric plate and to which the sieve member is fixed, The oscillating sorter according to any one of claims 1 to 7, wherein the rotating shafts of each of the plurality of oscillating units are arranged in a straight line, and adjacent rotating shafts are connected to each other by a connecting member.

9. the connecting member has a cylindrical shape with the rotation shaft disposed inside, The shaking separator according to claim 8 , wherein the shaking mechanism has a bearing that rotatably supports the connecting member.

10. A shaking separator having a plurality of rectangular sieve members, The plurality of sieve members extend in the front-rear direction and are arranged in the width direction, The front ends of the plurality of sieve members are disposed above the rear ends thereof, The plurality of sieve members are swung in the front-back direction and the up-down direction, and adjacent sieve members are swung out of phase with each other, Each of the plurality of sieve members has two wall portions extending in the front-rear direction and a plurality of dorsal fin portions arranged in the front-rear direction, The two wall portions are erected at both ends in the width direction of the sieve member, An inclined surface is formed at an upper end of an outer surface of the wall portion, the inclined surface approaching an inner surface of the wall portion as it goes upward, The plurality of dorsal fin portions are erected between the two wall portions, A shaking sorting machine, characterized in that each of the plurality of dorsal fin portions has an inclined portion located on a front side and an arc portion located on a rear side.

11. A flat portion is disposed between the two dorsal fin portions arranged in the front-rear direction, The shaking sorter according to claim 10, wherein the length of the flat portion in the front-rear direction is 0.5 to 1 times the length of the dorsal fin portion in the front-rear direction.

12. A shaking separator having a plurality of rectangular sieve members, The plurality of sieve members extend in the front-rear direction and are arranged in the width direction, The front ends of the plurality of sieve members are disposed above the rear ends thereof, The plurality of sieve members are swung in the front-back direction and the up-down direction, and adjacent sieve members are swung out of phase with each other, Each of the plurality of sieve members has a wall portion extending in the front-rear direction and erected at both ends in the width direction, An inclined surface is formed at an upper end of an outer surface of the wall portion, the inclined surface approaching an inner surface of the wall portion as it goes upward, The shaking sorter has a shaking mechanism that shakes the plurality of sieve members, The rocking mechanism has a plurality of rocking units, Each of the plurality of swinging units has a rotating shaft, a circular eccentric plate fixed to the rotating shaft, and a rotating member rotatably supported by the eccentric plate and to which the sieve member is fixed, The rotation shafts of the plurality of oscillating units are aligned in a straight line, and adjacent rotation shafts are connected to each other by a connecting member; the rocking unit further includes a swing bearing disposed between the eccentric plate and the swing member, a disk member fixed to the eccentric plate, and an annular plate member fixed to the swing member, A first protrusion and a first recess are provided on an outer circumferential surface of the disk member, a second protrusion and a second recess are provided on an inner circumferential surface of the annular plate member, The first protrusion is disposed inside the second recess with a gap therebetween, The second protrusion is disposed inside the first recess with a gap therebetween, A swaying separator, characterized in that a gap is formed around the entire circumference between the disk member and the annular plate member.

13. The rocking unit is A disk-shaped or annular-shaped cover member fixed to the eccentric plate, or a cover member having a circular plate shape fixed to the rotating member, The oscillating separator according to claim 12 , wherein the cover member is disposed so as to cover the gap.

Images