JPWO2016143630A1 - Storage and discharge device - Google Patents

Abstract

A rotating drum 3 that has a feed blade 7 inside and conveys the workpiece in the axial direction by rotation, and at least a part of the outer peripheral surface is formed in a cylindrical shape, from the end wall on the upstream side in the conveying direction of the rotating drum 3 A pipe 4 that is coaxially inserted and introduces a solid together with the air flow into the rotary drum 3, a seal mechanism 29 that seals between the pipe 4 and the rotary drum 3, and a separation device 5 that separates the solid from the air flow; The separation device 5 is provided in the pipe 4 to introduce an air flow and a solid into the rotary drum 3, and the separation device 5 is provided in the pipe 4 to the introduction passage 20 via the separation plate 20. Provided is a storage / discharge device 1 having an exhaust passage 21 connected to connect the inside of a rotary drum 3 to a negative pressure source 2.

Description

The present invention relates to a storage and discharge device that transports and discharges objects to be transported such as garbage and dust using a rotating drum.
This application claims priority about Japanese Patent Application No. 2015-044891 for which it applied on March 6, 2015, and uses the content here.

For example, in apartment buildings with multiple floors such as condominiums, a waste pneumatic transportation system that enables waste disposal through the waste input provided on each floor is adopted to measure the waste disposal of residents. Has been.
Garbage (garbage) thrown into the garbage inlet is dropped in a charging chute penetrating up and down the apartment house, and then stored in a rotary drum type storage / discharge device provided for each charging chute. Garbage is temporarily stored in a storage and discharge device and collected by a garbage truck as appropriate.

  An apparatus as described in Patent Document 1 is known as a storage / discharge apparatus (dust disposal apparatus) provided in a waste air transportation system. This storage and discharge device sucks air inside the rotating drum using a blower (blower) to generate an air flow in the transport pipe, and introduces dust and air into the rotating drum. Garbage falls into the rotating drum, and air is sucked into the blower through the intake pipe.

Japanese Examined Patent Publication No. 61-27284

  By the way, the storage / discharge device described in the above-mentioned Patent Document 1 has a large diameter of a fixed portion composed of a transport pipe which is a dust and air receiving part, an intake pipe for sucking air, and a filter. As a result, a sealing mechanism is required between the fixed part and the rotating drum to ensure the airtightness of the rotating drum while allowing the rotating drum to rotate. There was a problem that it was difficult to secure. Specifically, it is necessary to use a large-diameter, vacuum-compatible bearing or the like as the sealing mechanism, and there is a problem that the manufacturing cost increases.

  An object of the present invention is to provide a storage and discharge device that can further simplify a sealing mechanism between a fixed portion such as a transport pipe or an intake pipe and a rotary drum.

  According to the first aspect of the present invention, the storage / discharge device has a feed blade inside, a rotary drum that conveys the workpiece to the downstream side in the axial direction by rotation, and at least a part of the outer peripheral surface is cylindrical. A pipe that is coaxially inserted from an end wall on the upstream side in the axial direction of the rotary drum and that introduces solids into the rotary drum together with an air flow, and a seal that seals between the pipe and the rotary drum A mechanism and a separation device that separates the solid from the air flow, the separation device being provided in the pipe and introducing the air flow and the solid into the rotating drum; And an exhaust passage connected to the introduction passage through a separation plate and connecting the inside of the rotary drum to a negative pressure source.

  According to such a configuration, the introduction passage for introducing the airflow and the solid and the exhaust passage for connecting the inside of the rotary drum to the negative pressure source are provided in a pipe formed in a part of a cylindrical shape. The diameter of the pipe can be reduced, and the sealing mechanism between the pipe and the rotating drum can be further simplified.

  In the storage and discharge device, the pipe includes an inner pipe and an outer pipe provided on an outer peripheral side of the inner pipe and having a hole formed on an outer peripheral surface thereof, and the introduction passage includes an inner circumference of the inner pipe. The exhaust passage may be a space between the inner tube and the outer tube and the hole.

  In the storage and discharge device, the pipe is provided on the outer side of the inner tube and the inner tube, the outer diameter is changed to an uneven shape, and a plurality of holes are formed on the surface facing the axial direction. The introduction passage may be a space on the inner peripheral side of the inner tube, and the exhaust passage may be a space between the inner tube and the outer tube and the plurality of holes.

  According to such a configuration, more holes can be formed in the outer tube. Thereby, since the flow velocity of the air which passes a hole can be made slow, it can suppress that dust flows into an exhaust passage with air.

  In the storage and discharge device, the outer pipe has an outer pipe main body and an internal space communicating with a space between the outer pipe main body and the inner pipe, and the entire outer circumferential direction extends radially outward from the outer pipe main body. A plurality of enlarged diameter portions protruding around the circumference, and the plurality of holes may be formed on a surface of the enlarged diameter portion facing the axial direction.

  In the storage / discharge device, the surface facing the downstream side in the axial direction of the enlarged diameter portion arranged on the most downstream side in the axial direction among the plurality of enlarged diameter portions is not formed with the hole, and the processed object It may be a support part for supporting an object.

  According to such a structure, the deposit of garbage can be suppressed by the support part. Thereby, it can suppress that dust collapses and flows into a hole.

In the storage and discharge device, a filter that covers the hole may be provided on a surface of the outer tube on which the hole is formed.
According to such a configuration, it is possible to prevent a solid smaller than the diameter of the hole from being sucked into the negative pressure source.

  In the storage and discharge device, the pipe is provided with a partition plate that divides the interior vertically, and the introduction passage is a space on the inner peripheral side of the pipe and below the partition plate, The exhaust passage may be a space on the inner peripheral side of the pipe and above the partition plate.

  In the storage / discharge device, a plurality of holes may be formed on an outer peripheral surface of the pipe above the partition plate.

  According to the present invention, the introduction passage for introducing the airflow and the solid and the exhaust passage for connecting the inside of the rotary drum to the negative pressure source are provided in the pipe formed in a part of the cylindrical shape, thereby providing the pipe. The diameter can be reduced, and the sealing mechanism between the pipe and the rotating drum can be further simplified.

It is sectional drawing of the storage-and-discharge apparatus of 1st embodiment of this invention. It is a detailed sectional view of piping of a storage discharge device of a first embodiment of the present invention. It is an AA arrow line view of FIG. 1, and is sectional drawing of piping. It is sectional drawing of the storage-and-discharge apparatus of 2nd embodiment of this invention. It is a BB arrow line view of Drawing 4, and is a sectional view of piping. It is sectional drawing of the storage carrying out apparatus of 3rd embodiment of this invention. It is detail sectional drawing of piping of the storage-and-discharge apparatus of 3rd embodiment of this invention. It is CC arrow line view of FIG. 7, and is a front view of the diameter expansion part of the storage and carrying-out apparatus of 3rd embodiment of this invention. It is a front view of the enlarged diameter part of the storage and carrying-out apparatus of the modification of 3rd embodiment of this invention.

(First embodiment)
Hereinafter, a storage and discharge device according to a first embodiment of the present invention will be described in detail with reference to the drawings.
The storage / discharge device of the present embodiment is a device that stores waste / dust that is an object conveyed by air in a waste air transport system using a pneumatic transport method.
Garbage is stored in the waste air transport system through waste input provided in buildings such as condominiums with multiple floors, multiple input chutes (dust chutes) that penetrate the building in the vertical direction, and transport pipes. And an air blower (blower, negative pressure source) that generates an air flow for transporting garbage. Garbage thrown into the inlet is introduced into the storage / discharge device together with the air flow.

As shown in FIG. 1, the storage / discharge device 1 of the present embodiment includes a rotating drum 3, a pipe 4 inserted from an end of the rotating drum 3 on the upstream side in the conveyance direction T of dust (solid), and an air current. And a separation device 5 for separating garbage.
In the following description, the direction in which the axis O of the rotary drum 3 extends is defined as the axial direction Da. A direction perpendicular to the axis O is a radial direction, a side away from the axis O in the radial direction is referred to as a radially outer side, and a side closer to the axis O in the radial direction is referred to as a radially inner side. Further, in the axial direction Da, the upstream side in the transport direction T is referred to as the axial upstream side Da1, and the downstream side in the transport direction T is referred to as the axial downstream side Da2.

  The rotating drum 3 has a cylindrical shape. The rotating drum has a space for storing garbage. The rotating drum 3 conveys dust to the axially downstream side Da2 by rotation. The rotating drum 3 does not need to be installed horizontally, and may be arranged so as to descend toward the axially downstream side Da2. The diameter of the rotating drum 3 is, for example, 2,000 mm.

  Inside the rotating drum 3, a feed blade 7 (blade portion, screw blade) formed in a spiral shape is provided. The feed blade 7 functions as a pushing mechanism. When the rotating drum 3 rotates in a predetermined direction, the dust thrown into the rotating drum 3 is pushed into the axial downstream side Da2 and compressed. In other words, the rotating drum 3 has a function of storing waste, and is capable of pressure-feeding the dust by applying a rotational force.

On the downstream side Da2 in the axial direction of the rotary drum 3, a discharge opening 8 for discharging dust is provided.
The storage / discharge device 1 has a drive unit 9 that rotates the rotary drum 3. The drive unit 9 includes an electric motor 10, a drive gear 11 provided on the output shaft of the electric motor 10, and a driven gear 12 provided on the outer peripheral surface of the rotary drum 3.

  The rotating drum 3 is rotatably supported by four receiving rollers 14 (only two are shown in FIG. 1). The rotating drum 3 is supported by two receiving rollers 14 in the vicinity of one end of the rotating drum 3 in the axial direction Da, and in the vicinity of the end opposite to the one end of the rotating drum 3 in the axial direction Da. Are supported by two receiving rollers 14.

  The receiving roller 14 includes a tire-shaped roller body 15 and a roller support 16 that rotatably supports the roller body 15. The receiving roller 14 is disposed so as to support the rotating drum 3 on the outer peripheral surfaces of the pair of roller bodies 15. A cylindrical rail ring 17 is attached to a contact portion of the roller body 15 on the outer peripheral surface of the rotating drum 3.

  The feed blade 7 is formed in a spiral shape, and its outer peripheral end is joined to the inner wall of the rotary drum 3 by welding. As the rotating drum 3 rotates, the feed blade 7 also rotates.

As shown in FIGS. 2 and 3, the pipe 4 is a cylindrical pipe inserted coaxially with the rotary drum 3 from the end wall 19 on the upstream side Da <b> 1 in the axial direction of the rotary drum 3. That is, the axis O (center axis) of the rotating drum 3 and the center axis of the pipe 4 coincide with each other. The diameter of the pipe 4 is 1,000 mm, for example.
The pipe 4 includes an inner pipe 20 connected to the transport pipe 13 that is a dust and air receiving part, and an outer pipe 21 provided on the outer peripheral side of the inner pipe 20. A portion of the pipe 4 that is inserted into the internal space 6 of the rotary drum 3 is a double pipe composed of an inner pipe 20 and an outer pipe 21. The outer peripheral surface of the outer pipe 21 is the outer peripheral surface of the pipe 4.

The length of the inner tube 20 from the end wall 19 of the rotating drum 3 is longer than the length of the outer tube 21 from the end wall 19. The end of the outer pipe 21 on the downstream side Da2 in the axial direction is disposed between the end wall 19 of the rotating drum 3 and the end of the inner pipe 20 on the downstream side Da2 in the axial direction.
A sealing plate 22 is provided between the end of the outer pipe 21 on the downstream side Da2 in the axial direction and the outer peripheral surface of the inner pipe 20. The sealing plate 22 is a circular plate-like member in which a through hole 22a through which the inner tube 20 is inserted is formed at the center. The end of the outer pipe 21 on the downstream side Da2 in the axial direction is sealed by the sealing plate 22 and the inner pipe 20.

  In the outer tube 21, a plurality of holes 23 are formed in a portion inserted into the internal space 6 of the rotary drum 3. The portion where the plurality of holes 23 are formed in the outer tube 21 can be formed by punching metal.

  A filter 24 is wound around the outer peripheral surface of the outer tube 21 where a plurality of holes 23 are formed. As the filter 24, for example, a nonwoven fabric, a mesh, a sponge, or the like can be employed. The filter 24 is covered with a guard member 25 formed by a cylindrical net. The guard member 25 is a member that fixes the filter 24 to the outer tube 21 and is fixed to the rotating drum 3 using a predetermined bracket.

The inner tube 20 is provided in the pipe 4 and functions as an introduction passage for introducing air and dust into the rotary drum 3. The introduction passage is a space on the inner peripheral side of the inner tube 20.
The outer pipe 21 is provided in the pipe 4 and connected via the inner pipe 20, and functions as an exhaust passage that connects the inside of the rotary drum 3 to the blower 2. The exhaust passage is a space between the inner tube 20 and the outer tube 21 and a plurality of holes 23.
The inner pipe 20 functions as a separation plate that separates the pipe 4 into an introduction passage and an exhaust passage.

A pipe insertion hole 27 through which the pipe 4 is inserted is formed in the end wall 19 of the rotary drum 3. A cylindrical flange 28 is formed in the pipe insertion hole 27 so as to protrude outward from the rotary drum 3. The flange 28 is formed so that the center axis of the flange 28 and the axis O of the rotary drum 3 coincide.
A seal mechanism 29 is provided between the flange 28 (the rotating drum 3) and the pipe 4. As the seal mechanism 29, for example, a gland packing or an oil seal packing can be employed. The sealing mechanism 29 only needs to be able to seal between the rotating drum 3 (flange 28) that rotates and the pipe 4 that is fixed, and a simple sealing mechanism can be used.

The blower 2 is connected to the outer tube 21 and sucks air in the internal space 6 of the rotary drum 3. When the blower 2 sucks air in the internal space 6 of the rotary drum 3, an air flow for transporting garbage is generated in the transport pipe 13 and the inner pipe 20.
The transport pipe 13 is connected to a garbage inlet not shown. That is, the waste introduced from the waste introduction port is introduced into the rotary drum 3 together with the airflow through the transport pipe 13 and the inner pipe 20.

Next, the operation of the garbage collection system of this embodiment will be described.
First, garbage thrown in from the loading port is transported via the transport pipe 13 on the airflow generated by the blower 2. That is, when the blower 2 is operated, the air in the inner space 6 of the rotary drum 3 is sucked through the outer pipe 21 of the pipe 4, and thereby provided on the upstream side of the inner pipe 20 and the inner pipe 20. An air flow is generated in the transport pipe 13 and dust (dust) and air are introduced into the rotating drum 3 through the inner pipe 20 of the pipe 4 (indicated as In in FIGS. 1 to 3).

The dust introduced into the rotating drum 3 from the inner tube 20 falls into the rotating drum 3. Air introduced into the rotary drum 3 from the inner tube 20 flows into the outer tube 21 through the filter 24 and the plurality of holes 23, and is sucked into the blower 2 (denoted as Out in FIGS. 1 to 3). .
Garbage is transferred to the discharge opening 8 side by the feed blade 7. The garbage is discharged from the discharge opening 8 and sent to a garbage truck (not shown).

According to the embodiment, the inner pipe 20 (introduction passage) that is a pipe for sucking dust and air into the rotary drum 3 and the outer pipe 21 (exhaust passage) that discharges air are provided in the cylindrical pipe 4. As a result, the diameter of the pipe 4 can be reduced, and the sealing mechanism 29 between the pipe 4 and the rotary drum 3 can be further simplified.
The seal mechanism 29 only needs to be able to seal between the cylindrical pipe and the flange 28 that is sufficiently smaller than the diameter of the rotating drum, and a general gland packing or oil seal packing can be employed.

  In addition, since the hole 23 formed in the outer tube 21 is covered with the filter 24, dust smaller than the diameter of the hole 23 can be prevented from being sucked into the blower 2.

  When exchanging the filter 24, only the filter 24 can be dropped into the rotary drum 3 by removing the pipe 4 from the rotary drum 3. Thereby, the filter 24 can be easily discarded. When attaching the filter 24, the filter 24 may be inserted into the rotating drum 3 after the filter 24 is wound around the pipe 4.

  In the above embodiment, the pipe 4 has a cylindrical shape. However, the pipe 4 only needs to have a cylindrical outer peripheral surface that overlaps the flange 28 in the axial direction Da. For example, the cross-sectional shape of the inner pipe 20 is elliptical. The inner tube 20 can be bent upward or downward.

(Second embodiment)
Hereinafter, the storage / discharge device 1B of the second embodiment of the present invention will be described with reference to the drawings. In the present embodiment, differences from the first embodiment described above will be mainly described, and description of similar parts will be omitted.
As shown in FIG.4 and FIG.5, the piping 4B of this embodiment has the partition plate 31 which divides the inside of the piping 4B up and down. The end of the pipe 4 </ b> B above the partition plate 31 is sealed with a sealing plate 22.
A plurality of holes 23 are formed on the outer peripheral surface of the pipe 4 </ b> B above the partition plate 31. Similar to the first embodiment, the plurality of holes 23 are covered with a filter 24.

A space on the inner peripheral side of the pipe 4 </ b> B and below the partition plate 31 functions as an introduction passage for introducing air and dust into the rotary drum 3.
A space on the inner peripheral side of the pipe 4 </ b> B and above the partition plate 31 functions as an exhaust passage that connects the inside of the rotary drum 3 to the blower 2. The exhaust passage is a space and a plurality of holes 23 on the inner peripheral side of the pipe 4 </ b> B and above the partition plate 31.
The partition plate 31 functions as a separation plate that separates the pipe 4B into an introduction passage and an exhaust passage.

(Third embodiment)
Hereinafter, a storage / discharge device 1C according to a third embodiment of the present invention will be described with reference to the drawings. In the present embodiment, differences from the first embodiment described above will be mainly described, and description of similar parts will be omitted.
As shown in FIG. 6, the pipe 4 </ b> C of the present embodiment is provided on the outer side of the inner tube 20 and the inner tube 20, and has a plurality of holes 23 </ b> C on the surface facing the axial direction Da with an outer diameter changing to an uneven shape. The outer tube 21C is formed.

  The outer tube 21 </ b> C includes an outer tube body 33 formed coaxially with the inner tube 20, and a plurality of enlarged diameter portions 34 arranged at intervals in the axial direction Da. The enlarged diameter portion 34 protrudes from the outer tube body 33 to the radially outer side over the entire circumference in the circumferential direction. It has the 1st enlarged diameter part 34a arrange | positioned at the axial direction downstream side Da2, and the 2nd enlarged diameter part 34b arrange | positioned at the axial direction upstream side Da1.

  As shown in FIG. 7, the second enlarged diameter portion 34 b includes a cylindrical outer peripheral portion 35 and disc portions 36 provided at both ends of the outer peripheral portion 35 in the axial direction Da. The outer diameter of the outer peripheral portion 35 is sufficiently larger than the outer diameter of the outer tube main body 33. The outer diameter of the outer peripheral portion 35 can be, for example, three times the outer diameter of the outer tube body 33.

  In the second enlarged diameter portion 34 b, the distance in the axial direction Da between the pair of disk portions 36 can be, for example, twice the radial distance between the inner tube 20 and the outer tube main body 33.

The disc portion 36 is a plate-like member whose main surface is a surface orthogonal to the axis O. A space surrounded by the outer peripheral portion 35 and the pair of disk portions 36 communicates with a space between the inner tube 20 and the outer tube main body 33.
As shown in FIG. 8, the disc portion 36 has a plurality of holes 23 </ b> C. The disc part 36 in which the plurality of holes 23C are formed can be formed by punching metal, for example.

As shown in FIG. 7, the first diameter-expanded portion 34 a includes a cylindrical outer peripheral portion 35, a support portion 37 provided at an end of the outer peripheral portion 35 on the axial downstream side Da 2, and an axial direction of the outer peripheral portion 35. And a disc portion 36 provided at the end of the upstream side Da1. No holes are formed in the support portion 37.
The support portion 37 is a plate-like member that takes into account the contact of the dust M stored in the rotary drum 3 with the deposit M (see FIG. 6). The support portion 37 is formed on a surface of the plurality of enlarged diameter portions 34 facing the axial downstream side Da2 of the first enlarged diameter portion 34a arranged on the most downstream side Da2.

  In the first enlarged diameter portion 34a, the interval between the support portion 37 and the disc portion 36 in the axial direction Da can be, for example, twice the interval between the inner tube 20 and the outer tube body 33 in the radial direction.

  A space surrounded by the outer peripheral portion 35, the support portion 37, and the disc portion 36 communicates with a space between the inner tube 20 and the outer tube main body 33. A plurality of holes 23C are formed in the disc portion 36.

The support portion 37 includes a main body portion 39 positioned on the inner peripheral side, and an inclined portion 40 that is positioned on the outer peripheral side of the main body portion 39 and inclines toward the upstream side in the transport direction T toward the radially outer side. .
The main body 39 is a circular plate-like member in which a through hole 39a through which the inner tube 20 is inserted is formed at the center. The main surface of the main body 39 is a surface orthogonal to the axis O.
The inclined portion 40 is an annular member that connects an end portion on the radially outer side of the main body portion 39 and an end portion of the outer peripheral portion 35 on the downstream side Da2 in the axial direction. The inclination angle of the inclined portion 40 with respect to the main body portion 39 can be appropriately set according to the angle of repose of the dust deposit M stored in the rotary drum 3. The inclined portion 40 does not need to have a straight cross-sectional shape as viewed from the circumferential direction, and may have an arc shape.

The outer tube 21 </ b> C of the present embodiment has three disk portions 36. Each disk part 36 has a plurality of holes 23C.
The number of the holes 23C is determined based on the flow velocity of the air passing through the holes 23C during the operation of the storage / discharge device 1C.
The flow rate of air passing through the holes 23C decreases as the number of holes 23C increases. The number of holes 23C is set such that the flow velocity of air passing through the holes 23C is 2 m / s-5 m / s, for example. The number of holes 23C in the present embodiment is set so that the flow velocity of the air passing through the holes 23C becomes slow.

A guide plate 41 is provided at the distal end of the outer tube body 33. The guide plate 41 is an annular member that protrudes from the connecting portion 42 between the radially inner end portion of the disc portion 36 of the first enlarged diameter portion 34a and the distal end portion of the outer tube body 33 to the axial downstream side Da2. .
The guide plate 41 is formed so as to gradually increase in diameter from the connection portion 42 toward the downstream side Da2 in the axial direction.

The radial position of the outer peripheral end 41 a of the guide plate 41 is intermediate between the connecting portion 42 (end on the inner side in the radial direction of the disc portion 36) and the end portion 36 a (outer peripheral portion 35) on the inner side in the radial direction of the disc portion 36. It is set in the vicinity.
That is, in the guide plate 41, the distance from the connecting portion 42 to the outer peripheral end 41a of the guide plate 41 and the distance from the radially outer end 36a of the disc portion 36 to the outer peripheral end 41a of the guide plate 41 are approximately It is formed to be equal.
A predetermined gap G is formed between the outer peripheral end 41 a of the guide plate 41 and the support portion 37 in the circumferential direction.

  A filter (not shown) similar to the filter 24 of the first embodiment is attached to the outer surface of the disc portion 36 and the surface where the plurality of holes 23C are formed.

According to the above embodiment, the air introduced into the rotary drum 3 from the inner tube 20 flows into the outer tube 21 </ b> C through the plurality of holes 23 </ b> C formed in the disk portion 36 and is sucked into the blower 2. The
Here, the number of the plurality of holes 23C is set so that the flow velocity of the air passing through the holes 23C is, for example, 2 m / s-5 m / s. Thereby, since the flow velocity of the air passing through the hole 23C becomes slow, it is possible to suppress the dust from flowing into the inner space (exhaust passage) of the outer pipe 21C together with the air.

  In addition, since the guide plate 41 is provided in the inner space of the outer tube 21 </ b> C, the suction force acting in the vicinity of the radially outer end of the disc portion 36 via the gap G and the disc via the gap G The suction force acting near the radially inner end of the portion 36 is made uniform. Thereby, the flow velocity of the air passing through the plurality of 23C can be made uniform.

Further, the dust transferred to the discharge opening 8 side by the feed blade 7 becomes a deposit M having a predetermined gradient as shown in FIG. The outer tube 21C of the present embodiment is provided with a support portion 37 that holds the dust deposit M, so that it is possible to prevent the dust from collapsing into the axial upstream side Da1 and flowing into the hole 23C. it can.
Further, by making the inclined portion 40 into a shape (angle) in consideration of the angle of repose of the dust deposit M, it is possible to prevent the dust deposit M from collapsing.

  In the above embodiment, holes are not formed in the outer peripheral portion 35, but holes may be formed in the outer peripheral portion 35 if it is necessary to increase the number of holes.

  Next, a modification of this embodiment will be described. As shown in FIG. 9, the disk portion 36 of this modification has holes 43A, holes 43B, holes 43C, and holes 43D having different inner diameters.

The hole 43 </ b> A is a hole formed at the innermost radial direction of the disc part 36.
The hole 43 </ b> D is a hole formed at the outermost radial direction of the disc part 36. The inner diameter of the hole 43D is larger than the inner diameter of the hole 43A.
The hole 43B is a hole formed on the radially outer side of the hole 43A and on the radially inner side of the hole 43D. The inner diameter of the hole 43B is larger than the inner diameter of the hole 43A and smaller than the inner diameter of the hole 43D.
The hole 43C is a hole formed on the radially outer side of the hole 43B and on the radially inner side of the hole 43D. The inner diameter of the hole 43C is larger than the inner diameter of the hole 43B and smaller than the inner diameter of the hole 43D.

That is, the diameters of the plurality of holes do not have to be the same, and the diameters may be reduced toward the inside in the radial direction.
A large amount of air flowing in through the hole 43 of the disk part 36 tends to flow in the radially outer side of the disk part 36. However, the smaller the diameter of the hole 43 (the smaller the area of the hole 43), the more the air pressure loss. Therefore, much is led to the radially outer hole 43 as well. Thereby, the flow velocity of the air passing through the plurality of 43 can be made uniform.

The embodiment of the present invention has been described in detail above, but various modifications can be made without departing from the technical idea of the present invention.
For example, in each of the above embodiments, the filter 24 is provided in the pipe 4 inside the rotary drum 3, but the present invention is not limited to this, and the filter 24 may be provided outside the rotary drum 3. In other words, the filter 24 only needs to be provided in any of the pipes that suck in the internal air of the rotary drum 3.
Moreover, in each said embodiment, although the outer peripheral surface of the rotating drum 3 was instruct | indicated using the receiving roller 14, it does not restrict to this. For example, the receiving roller 14 may be used to support the flange 28 and the protruding tube of the discharge opening 8.

1,1B Storage and discharge device 2 Blower (negative pressure source)
3 Rotating drum 4, 4B Piping (separator)
DESCRIPTION OF SYMBOLS 5 Separator 6 Internal space 7 Feeding blade 8 Discharge opening 9 Drive part 10 Electric motor 11 Drive gear 12 Driven gear 13 Transport pipe 14 Receiving roller 15 Roller main body 16 Roller support stand 17 Rail ring 19 End wall 20 Inner pipe (introduction passage) , Separation plate)
21, 21C Outer pipe (exhaust passage)
22 Sealing plate 23, 23C hole 24 Filter 25 Guard member 27 Pipe insertion hole 28 Flange 29 Seal mechanism 31 Partition plate (separation plate)
33 outer pipe main body 34 expanded diameter portion 34a first expanded diameter portion 34b second expanded diameter portion 35 outer peripheral portion 36 disc portion 37 support portion 39 main body portion 40 inclined portion 41 guide plate 43 hole Da axial direction Da1 axial upstream side Da2 Downstream side in the axial direction G Gap O Center axis T Transport direction

Claims (8)

A rotating drum that has a feed blade inside and conveys the workpiece to the downstream side in the axial direction by rotation;
At least a part of the outer peripheral surface is formed in a cylindrical shape, is inserted coaxially from the end wall on the upstream side in the axial direction of the rotating drum, and a pipe for introducing a solid with the airflow into the rotating drum;
A sealing mechanism for sealing between the pipe and the rotating drum;
A separation device for separating the solid from the air stream,
The separation device includes:
An introduction passage provided in the pipe for introducing the airflow and the solid into the rotating drum;
A storage / discharge device comprising: an exhaust passage provided in the pipe and connected to the introduction passage through a separation plate, and connecting the inside of the rotary drum to a negative pressure source. The piping is
An inner tube, and an outer tube provided on the outer peripheral side of the inner tube and having a hole formed on the outer peripheral surface thereof,
The introduction passage is a space on the inner peripheral side of the inner pipe,
The storage / exhaust device according to claim 1, wherein the exhaust passage is a space between the inner tube and the outer tube and the hole. The piping is
An inner tube,
An outer tube provided on the outer peripheral side of the inner tube, the outer diameter of which changes to an uneven shape, and a plurality of holes are formed on the surface facing the axial direction,
The introduction passage is a space on the inner peripheral side of the inner pipe,
The storage / discharge device according to claim 1, wherein the exhaust passage is a space between the inner tube and the outer tube and the plurality of holes. The outer tube is
An outer tube body;
Having an internal space communicating with the space between the outer tube main body and the inner tube, and having a plurality of enlarged diameter portions projecting from the outer tube main body radially outward to the entire circumference. ,
The storage and discharge device according to claim 3, wherein the plurality of holes are formed on a surface of the enlarged diameter portion facing the axial direction.   Of the plurality of enlarged diameter portions, the surface facing the downstream side in the axial direction of the enlarged diameter portion arranged on the most downstream side in the axial direction is not formed with the hole, and supports the workpiece. The storage / discharge device according to claim 4.   The storage / discharge device according to claim 2, wherein a filter that covers the hole is provided on a surface of the outer tube on which the hole is formed. The piping is provided with a partition plate that divides the interior vertically.
The introduction passage is a space on the inner peripheral side of the pipe and below the partition plate,
The storage / exhaust device according to claim 1, wherein the exhaust passage is a space on an inner peripheral side of the pipe and above the partition plate.   The storage / discharge device according to claim 7, wherein a plurality of holes are formed in an outer peripheral surface of the pipe above the partition plate.

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