Separation device

Abstract

The objective is to provide a separation device that separates a liquid substance, which contains more liquid than solid, from a fluid substance, which is a mixture of solid and liquid components, while improving separation efficiency by adjusting the transport load of the substance, and suppressing increases in manufacturing costs. [Solution] The transport unit comprises a plurality of rotating plates having thickness in the left-right direction, arranged planarly in the left-right and front-back directions in a plan view; a frame in which the transport unit is positioned and whose entire length is aligned in the front-back direction; and a drive unit that rotates the plurality of rotating plates to transport an object introduced to the upper side of the transport unit forward. A gap is formed between the front-back rotating plates or between the left-right rotating plates, allowing the object to be separated to leak out. The transport unit can be supported in an inclined state relative to the frame such that the plurality of rotating plates are aligned in an inclined direction in a side view.

Description

Technical Field

[0001] The present invention relates to a separation device that separates a separated substance, which is a liquid substance containing more liquid, from an object in which a solid and a liquid are mixed and have fluidity.

Background Art

[0002] There is conventionally known a separation device including: a conveyance unit in which a plurality of rotating plates having a thickness in the left - right direction are arranged side by side in a planar manner in the left - right and front - rear directions in a plan view; a frame body in which the conveyance unit is arranged inside and whose entire length is directed in the front - rear direction or a direction along it; and a drive unit that rotationally drives the plurality of rotating plates so as to convey forward an object introduced to the upper surface side of the conveyance unit.

[0003] According to such a separation device, an object introduced to the upper surface side of a plurality of rotating plates arranged side by side in a planar manner in the left - right and front - rear directions is conveyed forward by the rotation of the rotating plates. In this conveyance process, the separated substance in the object leaks from a gap formed between the front - rear rotating plates or a gap formed between the left - right rotating plates, so that the separated substance can be efficiently separated from the object.

[0004] By the way, there is known a separation device in which the conveyance load of an object is adjusted by inclining the entire frame body on which the conveyance unit is supported, thereby further improving the separation efficiency (see, for example, Patent Document 1).

[0005] While the separation device of the above - mentioned document has the above - described merits, the manufacturing cost becomes high due to the structure for inclining the entire frame body.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

[0007] The present invention aims to provide a separation device that separates a liquid object, which is a mixture of solids and liquids and has fluidity, from an object, which is a liquid containing more liquid than solids, by adjusting the transport load of the object, thereby improving separation efficiency and suppressing an increase in manufacturing costs. [Means for solving the problem]

[0008] To solve the above problems, a separation device is provided for separating a liquid object, which is a mixture of solid and liquid and has fluidity, from an object, which is a liquid containing more liquid, comprising: a transport unit in which a plurality of rotating plates having thickness in the left-right direction are arranged planarly in the left-right and front-back directions in a plan view; a frame body in which the transport unit is arranged inside and whose entire length is oriented in the front-back direction or a direction along that direction; and a drive unit that rotates the plurality of rotating plates to transport the object introduced on the upper side of the transport unit forward, wherein a gap is formed between the front-back rotating plates or between the left-right rotating plates, allowing the object to be separated to leak out, and the transport unit is supported by the frame body in an adjustable tilted state, or fixedly supported in an tilted state, such that the plurality of rotating plates are arranged in an inclined direction in a side view.

[0009] The transport unit may have multiple rotating shafts that are rotatably supported and arranged in a front-to-back configuration in a plan view, with multiple rotating plates attached and fixed to each rotating shaft in a left-to-right arrangement.

[0010] The transport unit may have a unit frame, the rotating plate may be rotatably supported on the unit frame side, and the unit frame may be supported on the frame side so as to be able to adjust its tilt angle.

[0011] The rotating plate may be rotatably mounted and supported between a pair of left and right side walls that constitute the frame.

[0012] The drive unit comprises an actuator and a transmission mechanism that transmits the power of the actuator to the rotating plate, and the transmission mechanism may be configured to transmit the power of the actuator from both ends of the rotating shaft.

[0013] At least one of the rotating shaft or the unit frame may be made of a duplex stainless steel material.

[0014] The aforementioned frame may be made of a two-phase stainless steel material.

[0015] The transport unit has guide members that are formed in the shape of a rod in the front-to-back direction in a plan view and are supported at an angle to the frame so as to be aligned with the direction in which the rotating plates are arranged in a side view. Multiple guide members may be arranged in parallel on the left and right sides, with slit-shaped spaces formed between adjacent guide members on the left and right sides, and the rotating plates may be arranged in each space in a straight line from front to back in a plan view. [Effects of the Invention]

[0016] According to the present invention, the transport load of the object is adjusted by tilting the transport unit, thereby improving separation efficiency. Furthermore, the structure in which the transport unit, rather than the entire frame, is tilted relative to the frame minimizes the increase in manufacturing costs. [Brief explanation of the drawing]

[0017] [Figure 1] This is a plan view of the separation apparatus of the present invention. [Figure 2] Figure 1 is a side view showing the main components of the separation device. [Figure 3] This is a side view showing the main components of the transport unit. [Figure 4] This is a front view showing the main components of the transport unit. [Figure 5] This is a rear view showing the main components of the drive unit. [Figure 6]It is a front view showing the arrangement of the guide bar, the rotating shaft, and the rotating plate. [Figure 7] It is a plan view showing the arrangement of the guide bar, the rotating shaft, and the rotating plate. [Figure 8] It is a side view showing the main part configuration of the separation device according to another embodiment of the present invention. [Figure 9] It is a front view showing the main part configuration of the conveying unit and the driving unit in FIG. 8.

Mode for Carrying Out the Invention

[0018] FIG. 1 is a plan view of the separation device of the present invention, FIG. 2 is a side view showing the main part configuration of the separation device of FIG. 1, FIGS. 3 and 4 are side views and front views showing the main part configuration of the conveying unit, FIG. 5 is a rear view showing the main part configuration of the driving unit, and FIGS. 6 and 7 are front views and plan views showing the arrangement of the guide bar, the rotating shaft, and the rotating plate.

[0019] The illustrated separation device performs a process of separating a separated substance, which is a liquid containing more liquid (mainly water) from an object in which a solid and a liquid (mainly water) are mixed and the object has fluidity, while conveying the object in one direction. Incidentally, the feeding direction of the object in a plan view is defined as the front, and the front-back and left-right directions are defined based on this, and the following description is made on this premise.

[0020] This separation device feeds an object in which a solid and a liquid (mainly water) are mixed forward while performing de-liquefaction (mainly dehydration) of the processed object, and includes an upper device main body 1 and a lower frame (not shown) on the lower side that supports the device main body 1.

[0021] The lower frame has a drainage tank (not shown) formed in a box shape with an open upper part. This drainage tank receives the separated substance that is separated from the object on the device main body 1 side and falls, and temporarily stores it inside.

[0022] The device body 1 comprises a cylindrical (box-shaped) frame 2 that forms the outer shape of the device body 1 and is long in the front-to-back horizontal direction or in a direction along thereto (in this example, the front-to-back horizontal direction) and open on both the top and bottom sides; a conveying unit 3 arranged inside the frame 2; a drive unit 4 that drives the conveying unit 3; and a compression unit 5 arranged directly above the conveying unit 3 and that compresses the object.

[0023] First, let's explain the structure of frame 2.

[0024] The frame 2 has side wall portions 6, 6 that rise vertically or substantially vertically and are long in the front-rear direction, a front wall portion 7 formed between the front ends of the left and right side wall portions 6, 6, and a rear wall portion 8 formed between the rear ends of the left and right side wall portions 6, 6.

[0025] The side wall section 6 has an inner wall panel 9 that is U-shaped with the outer side open in a cross-sectional view, and an outer wall panel 11 that has thickness on both sides and closes the aforementioned open portion of the inner wall panel 9. The upper and lower left and right outer ends of the inner wall panel 9 are bent toward each other to form flanges 9a, 9a. The outer wall panel 11 is attached and fixed to the inner wall panel 9, with the flanges 9a, 9a spanning from one to the other. Inside the side wall section 6, which is configured in this way, an installation space 6a is formed for installing various components.

[0026] The front wall section 7 and the rear wall section 8 are wall panels that have thickness in the front-to-back direction.

[0027] Next, the configuration of the transport unit 3 will be explained.

[0028] The transport unit 3 has a plurality of left-right rotating shafts 13 that are rotatably mounted and supported between the left and right side walls 6, 6 and are arranged in parallel in the front-to-back direction in a plan view, a plurality of guide bars (guide members) 14 that are formed in the front-to-back direction in a plan view and are arranged in parallel on the left and right, and a plurality of rotating plates 16 that have thickness in the left-to-right direction.

[0029] Multiple rotating shafts 13 are arranged in parallel at predetermined intervals in the front-to-back direction, with adjacent shafts parallel to each other in a plan view. Each rotating shaft 13 is rotatably mounted and supported between opposing portions of the left and right inner wall panels 9, 9 via bearings (in this example, bearings) 17, 17. Each bearing 17 is fitted and fixed into support holes (not shown) drilled in the inner wall panel 9.

[0030] The rotating shaft 13 is rotatably supported by being inserted through a pair of bearings 17, 17. A pair of transport-side sprockets 18, 18 are integrally mounted on each of the two ends of the rotating shaft 13 that protrude outwards from the left and right inner wall panels 9, 9 (towards the installation space 6a) via the bearings 17, 17. Each transport-side sprocket 18 constitutes a part of the drive unit 4 described above. Further details will be described later.

[0031] Multiple rotating plates 16 are arranged planarly between the left and right side walls 6, 6, in a front-to-back and left-to-right orientation in a plan view. Specifically, each rotating plate 16 is mounted and fixed to a rotating shaft 13 that is inserted perpendicularly or approximately perpendicularly through its center, so as to be able to rotate integrally. Multiple rotating plates 16 are mounted and fixed to each rotating shaft 13, arranged at predetermined intervals in the left-to-right direction, which is the axial direction of the shaft. The distance between adjacent rotating plates 16, 16 on the left and right is maintained by a circular ring-shaped spacer 19 that is mounted on the rotating shaft 13.

[0032] Since there are multiple rotating shafts 13, each equipped with multiple rotating plates 16, arranged in parallel in a front-to-back direction in a plan view, the rotating plates 16 are arranged planarly in the left-to-right and front-to-back directions in a plan view. Furthermore, in a plan view, the positions of the multiple rotating plates 16 on one of the front-to-back adjacent rotating shafts 13, 13 coincide with those on the other rotating shaft, with the positions in the left-to-right direction being their axial direction. As a result, the rotating plates 16 are arranged in a matrix in the space between the side walls 6, 6.

[0033] In other words, multiple rotating plates 16 are arranged in a straight line from front to back in a plan view, forming a transport column L. Multiple such transport columns L are arranged in parallel at predetermined intervals in the left-right direction, so that the upper surface of the transport unit 3 has a width from left to right and extends in the front-to-back direction in a plan view, forming a transport surface.

[0034] This transport surface (transport unit 3) is attached and supported on the side of the frame 2 (device body 1), which is supported from below by the lower frame in a horizontal position, in an inclined position (specifically, inclined diagonally upward toward the front) when viewed from the side (specifically, the left and right inner wall panels 9, 9).

[0035] In other words, the multiple left-right rotation axes 13 are rotatably supported on the frame 2 side, arranged in a direction (front-to-back inclination direction) that is inclined upward or downward (upward in this example) toward the front, which is the direction in which the object is transported, when viewed from the side. Incidentally, in this example, the inclination angle of the transport surface relative to the frame 2 is fixed.

[0036] The rotating plate 16 is formed in a circular shape with the rotation axis 13 inserted vertically or approximately vertically through its center, or in an elliptical shape with the rotation axis 13 inserted vertically or approximately vertically through the intersection of the major axis and the minor axis (center). In this example, all the rotating plates 16 are formed in the same elliptical shape.

[0037] Incidentally, while it is essential that rotating plates 16 mounted on the same rotating shaft 13 be molded to the same shape as each other, it is not essential that multiple rotating plates 16 constituting the same transport train L be molded to the same shape as each other.

[0038] For example, in the same transport train L, for each pair of adjacent rotating plates 16, 16 at the front and rear, the diameter of the rotation trajectory of the front rotating plate 16 may be set to be smaller than or the same as the diameter of the rotation trajectory of the rear rotating plate 16. In this case, the rotating plate 16 positioned at the very front of each transport train L may be formed into a circular shape that minimizes the diameter of its rotation trajectory.

[0039] Furthermore, in the same transport train L, the rotational trajectories of adjacent pairs of rotating plates 16, 16 in the front and rear are overlapping in a side view, and their phases are shifted by 1 / 4 of a period. As a result, a constant gap S1 is always formed between adjacent pairs of rotating plates 16, 16 in the same transport train L during their rotational operation. Objects to be separated from the transport surface side of the transport unit 3 pass through this gap S1 and fall into the exhaust tank directly below.

[0040] The guide bar 14 described above has a rectangular cross-section and is attached and fixed to the frame 2 in a position where it faces the front-to-back direction in a plan view and the front-to-back inclination direction in a side view. In other words, in a side view, it is formed in the shape of a rod extending in the direction in which the rotating plates 16 are arranged or in a direction along that direction.

[0041] These guide bars 14 are arranged side by side at predetermined intervals. A slit-shaped space S2 is formed between adjacent guide bars 14, 14 on the left and right. Multiple rotating plates 16, which constitute a corresponding transport column L in a plan view, are arranged in each of these slit-shaped spaces S2. Incidentally, a gap S2a, which is part of the space S2, is formed between the rotating plates 16 arranged in the slit-shaped space S2 between adjacent guide bars 14, 14 and the guide bars 14, 14. The material to be separated leaks out from this gap S2a located between the left and right rotating plates 16, 16 and falls downward.

[0042] Furthermore, in a side view, each guide bar 14 is positioned in close proximity directly above the multiple rotation axes 13 that are arranged in the front-to-back inclination direction. In addition, in the space between the left and right side walls 6, 6, the multiple guide bars 14 arranged on the left and right sides have their respective upper surfaces formed flat so that they are flush with each other.

[0043] When an object is introduced from the rear end of the conveying surface and each rotating plate 16 is driven to rotate in the forward direction (counterclockwise direction in Figures 2 and 3), the conveying surface takes on a wave shape, and as the rotating plate 16 protrudes upward from the flat upper surface of the guide bar 14, the outer edge portion of the rotating plate 16 is displaced forward, and the object is conveyed sequentially forward.

[0044] During this transport process, the liquid material to be separated from the object leaks out through the two types of gaps S1 and S2a in the space between the left and right side walls 6, 6 and falls (leaks down), and is stored in the drainage tank. Due to this leakage action, the object is propelled forward while the proportion of solid material gradually increases.

[0045] The object, having been sent to the front end, is sufficiently dehydrated and in a near-solid state, then discharged from the rear end of the frame 2 to the outside of the frame 2. It then slides down along the discharge guide member 21, which is integrally provided there, and is guided diagonally downward and forward. In this way, the separation of the material to be separated from the object is performed.

[0046] In this way, the frame 2 also serves as the frame (unit frame) of the transport unit 3. The transport unit 3 is also attached and supported to the front wall 7 and rear wall 8 of the frame 2, respectively, via the front and rear support frames 22 and 23.

[0047] Next, the configuration of the drive unit 4 will be explained.

[0048] The drive unit 4 includes a drive motor (actuator) 24 installed on the rear end of the outer side surface of one of the left (right) side walls 6, and a transmission mechanism 26 that transmits the power of the drive motor 24 to the transport unit 3 (specifically, the rotating plate 16).

[0049] The drive motor 24 is mounted and supported on the outer wall panel 11 of the side wall 6, located on the outer side of the side wall 6. The power of this drive motor 24 is configured to output power to the installation space 6a within the side wall 6 where it is supported.

[0050] The transmission mechanism 26 includes the aforementioned rotating shaft 13 and conveying sprocket 18, a left-right drive shaft 27 rotatably mounted and supported between the left and right side walls 6, 6, a main drive sprocket 28 integrally rotatably mounted on the drive shaft 27, a driven sprocket 29 supported in a free-rotating state on the side wall 6, and a transmission chain 31 wrapped around the three types of sprockets 18, 28, and 29.

[0051] The drive shaft 27 is rotatably supported by the left and right inner wall panels 9, 9, with each end portion being inserted into a pair of bearings 32, 32 which are fitted and fixed into support holes (not shown) drilled in the opposing portions of the left and right inner wall panels 9, 9.

[0052] Each end portion of the drive shaft 27 faces the installation spaces 6a, 6a within the left and right side walls 6, 6 via bearings 32, 32. One end of the drive shaft 27 is directly connected to the drive motor 24, and a drive sprocket 28 is mounted and fixed to the outer circumference of the end portion of the drive shaft 27, as well as to the outer circumference of the other end portion.

[0053] With the configuration described above, multiple rotating shafts 13 and the same number of transport-side sprockets 18 are provided in each of the left and right installation spaces 6a, 6a.

[0054] The driven sprockets 29 are distributed and arranged in the left and right installation spaces 6a, 6a. One or more driven sprockets 29 are provided below the conveying sprocket 18, as well as on the opposite side of the multiple conveying sprockets 29 that are arranged front to back with respect to the driving sprocket 28.

[0055] The transmission chains 31 are provided separately in the left and right installation spaces 6a, 6a. Each transmission chain 31 forms an annular structure wrapped around a main sprocket 28, a plurality of transport-side sprockets 18, and a driven sprocket 29, all located in the installation space 6a where it is situated. The transmission chains 31 in this configuration transmit power from the drive motor 24 to the transport-side sprockets 18, and rotate each rotating plate 16 via a rotating shaft 13 that rotates integrally with the transport-side sprockets 18.

[0056] Incidentally, each installation space 6a is provided with a support member 33 positioned directly below the multiple transport-side sprockets 18 arranged in a front-to-back inclined direction. This support member 33 has a frame portion 34 that is formed in a front-to-back inclined direction and has an inverted L-shape in cross-sectional view, protruding downward along the bearing 17 side surface of the inner wall panel 9 and protruding both to the left and right outwards from that surface, and a support portion 36 that is installed on the flat upper surface of the frame portion 34 and is also formed in a front-to-back inclined direction.

[0057] The support portion 36 is positioned near the direct underside of the multiple transport-side sprockets 18, which are arranged in a front-to-back inclined direction. Lubricating oil may be supplied to the transport-side sprockets 18 and the transmission chain 31 from the support portion 36. It is also possible to omit the support portion 36 from the support member 33.

[0058] With the transmission mechanism 26 configured in this way, when the drive motor 24 rotates the drive shaft 27 in the forward direction, the power is branched to the installation spaces 6a, 6a on the left and right side walls 6, 6, respectively, and this power is transmitted from the left and right transmission chains 31, 31 to the left and right ends of each rotating shaft 13, thereby rotating the multiple rotating plates 16 attached to and fixed on each rotating shaft 13 in the forward direction.

[0059] Next, we will explain the configuration of the compression unit 5.

[0060] The compression unit 5 includes a compression plate (compression member) 37 located near the top of the conveying surface and supported to swing up and down with the upper end of the main body of the device 1 as the pivot point, and an air cylinder 38 that elastically presses the compression plate 37 downward.

[0061] The compression plate 37 has its rear end bent upward relative to its middle and front ends, and its rear end is pivotally supported on the frame 2 side of the device body 1 via a left-right axis 39. The left-right width of the compression plate 37 is set to be approximately the same as or slightly narrower than the distance between the left and right side walls 6, 6, and the front-to-back length of the compression plate 37 is set to be approximately the same as or slightly shorter than the total length of the conveying surface.

[0062] The air cylinder 38 is mounted and supported at the front end of the main body 1 of the apparatus between the central part of a support frame 41 that is installed between the left and right side walls 6, 6 and runs in the left-right direction in a plan view, and the left-right central part of the front end portion of the compression plate 37. The air cylinder 38, through its extension operation, swings the compression plate 37 downward, performing elastic pressing on an object located in the front portion of the conveying surface and promoting liquid removal from the object. Conversely, through its contraction operation, it swings the compression plate 37 upward, releasing the downward pressing on the object.

[0063] Alternatively, instead of the air cylinder 38, a biasing member such as a gas spring or compression spring that elastically presses the compression plate 37 downward may be used, or a weight may be attached to the upper surface of the compression plate 37, and this weight may bias the compression plate 37 downward.

[0064] With the separation device configured as described above, the transport unit 3, which is fixedly supported in a forward-backward inclined state relative to the device body 1 (frame 2) which is supported from below by the lower frame in a forward-backward horizontal position, can appropriately set the transport resistance of the object depending on its inclination state. Therefore, compared to a device that sets the transport resistance of the object by swinging the device body 1 up and down relative to the lower frame, the structure can be simplified.

[0065] Each part is made of a material such as metal having a certain level of strength or higher, but in particular, one or both of the frame 2 and the rotating shaft 13 may be made of a duplex stainless steel material to improve the strength of the dehydration system.

[0066] Next, with reference to Figures 7 and 8, we will describe another embodiment of the present invention, specifically the parts that differ from the embodiments described above.

[0067] Figure 8 is a side view showing the main components of a separation device according to another embodiment of the present invention, and Figure 9 is a front view showing the main components of the transport unit and drive unit in Figure 8. In the above-described embodiment, the transport unit 3 was fixedly attached and supported to the frame 2, but in this embodiment, the transport unit 3 is attached and supported so as to be able to adjust its vertical swinging position.

[0068] First, the unit frame of the transport unit 3 is provided separately from the side wall sections 6, 6 (frame body 2). In the illustrated example, this unit frame consists of a pair of left and right side frames 42, 42 that are plate-shaped with thickness on both sides and are parallel to each other, and a left-right connecting frame 43 that connects and fixes the left and right side frames 42, 42.

[0069] The left and right side frames 42, 42 are positioned between the left and right side wall sections 6, 6 and are used as substitutes for the aforementioned inner wall panels 9, 9.

[0070] More specifically, the drive shaft 27 is rotatably supported by bearings 32, 32 between the left and right side walls 6, 6, similar to the embodiment described above. Each side frame 42 is provided with a through hole (not shown) through which the drive shaft 27 is inserted.

[0071] Meanwhile, each rotating shaft 13 is supported by bearings 17, 17, mounted between the left and right side frames 42, 42 in a rotatable state. Three types of sprockets 18, 28, 29 and a transmission chain 31 are separately provided in the space between one side frame 42 and the side wall 6, and in the space between the other side frame 42 and the side wall 6.

[0072] On the side of the side frame 42 facing the side wall 6, the driven sprocket 29 is supported in a free-rotating state, and a support portion 36 is also attached and fixed thereto. A rotating plate 16 is attached and fixed to the portion of each rotating shaft 13 located between the left and right side frames 42, 42. In other words, a conveying surface is formed between the left and right side frames 42, 42. The guide bar 14 is attached and fixed to the unit frame 42, 43.

[0073] With this configuration, as shown in Figure 8 with dashed and solid lines, the transport unit 3 can be mounted and supported on the frame 2 so that it can swing up and down using the left-right drive shaft 27 as a pivot point. The up and down swinging of the transport unit 3 may be performed manually or using an actuator such as a hydraulic cylinder. Furthermore, the separation device needs to be provided with a configuration that allows the transport unit 3 to be locked at multiple positions or any arbitrary position within its up and down swinging range, and as mentioned above, one hydraulic cylinder is used for this purpose.

[0074] This vertical oscillation causes the conveying surface to also oscillate up and down around the drive shaft 27 as a pivot point, and its inclination angle is adjusted. In other words, relative to the frame 2, the conveying unit 3 is supported so that its inclination angle in the front-to-back inclination direction can be adjusted as described above.

[0075] Furthermore, in order to ensure the strength of the dehydration (deliquidation) system described above, the unit frame, consisting of the side frame 42 and the connecting frame 43, may be constructed from a two-phase stainless steel material.

[0076] Thus, in supporting the transport unit 3 in an inclined state relative to the frame 2 such that the multiple rotating plates 16 are aligned in a sloping direction when viewed from the side, there are two means: one for fixedly supporting the transport unit 3 in an inclined state relative to the frame 2, as in the above-described embodiment, and another for supporting the transport unit 3 on the frame 2 so that it can swing up and down, as in this embodiment. [Explanation of Symbols]

[0077] 2 frame 3. Conveyor Unit 4 Drive Unit 6. Side wall section 13 Rotation axis 14 Guide bar (guide member) 16 Rotating Plates 24. Drive motor (actuator) 26 Transmission mechanism 42 Side frame (unit frame) 43. Connecting frame (unit frame) S1 Gap S2 space S2a Gap

Claims

1. A separation device for separating a liquid object, which contains more liquid than solid, from an object that is a mixture of solid and liquid and is fluid, A transport unit comprising multiple rotating plates having thickness in the left-right direction, arranged planarly in the left-right and front-back directions in a plan view, Inside it is the frame in which the transport unit is arranged and whose entire length is oriented in the front-to-back direction or in a direction along that direction, The transport unit comprises a drive unit that rotates multiple rotating plates to transport an object introduced on the upper side of the transport unit forward, A gap is formed between the front and rear rotating plates or between the left and right rotating plates, allowing the separated material to leak out. The transport unit is supported by the frame in an adjustable inclined state, or fixedly supported in an inclined state, such that the multiple rotating plates are arranged in an inclined direction when viewed from the side. A separation device characterized by the following features.

2. The transport unit has a plurality of rotating shafts that are rotatably supported and arranged in a front-to-back configuration in a plan view. Multiple rotating plates, arranged side by side, are attached and fixed to each rotating axis. The separation apparatus according to claim 1.

3. The transport unit has a unit frame, The rotating plate is rotatably supported on the unit frame side, The unit frame is supported on the frame side so as to be able to adjust its inclination angle. The separation apparatus according to claim 2.

4. The rotating plate is rotatably mounted and supported between a pair of left and right side walls that constitute the frame. The separation apparatus according to claim 2.

5. The drive unit comprises an actuator and a transmission mechanism that transmits the power of the actuator to the rotating plate. The transmission mechanism is configured to transmit the power of the actuator from both ends of the rotating shaft. The separation apparatus according to any one of claims 2 to 4.

6. At least one of the rotating shaft or the unit frame is made of a duplex stainless steel material. The separation apparatus according to claim 2.

7. The aforementioned frame is made of a duplex stainless steel material. The separation apparatus according to claim 1.

8. The transport unit has a guide member that is formed in the shape of a rod in the front-to-back direction in a plan view and is supported in an inclined state relative to the frame so as to be aligned with the direction in which the rotating plates are arranged in a side view. Multiple guide members are arranged in parallel on the left and right sides. A slit-shaped space is formed between the left and right adjacent guide members. In each space, the aforementioned rotating plates are arranged in a straight line from front to back in a plan view. The separation apparatus according to claim 1.

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