JP2023072988A - Conveyor device - Google Patents

Abstract

To make it possible to install a mechanism for recovering a transported object such as bulk fallen from a belt even in a space with limited installation height.SOLUTION: A conveyor device 3 hands over bulk 200 from a second transporting conveyor 12 to a third transporting conveyor 13 in a handing-over range 80. A third recovery conveyor 53, which is a flight conveyor, includes a low floor range 53a arranged below the handing-over range 80 and extending in parallel with a bottom floor surface 8 and a rising range 53b installed in a position separated from the handing-over range 80 and rising from the bottom floor surface 8.SELECTED DRAWING: Figure 9

Description

The present invention relates to conveyor devices.

2. Description of the Related Art A ship carrying bulk materials such as coal or limestone may use a belt conveyor when unloading bulk materials loaded in a hold. This belt conveyor is installed below the hold, and lifts the bulk material discharged from the hold from a position below the hold to a position above the hold. Bulk items on a belt conveyor can fall to the floor, for example, as they pass from one conveyor belt to another. Here, there is known a configuration in which a scraper is provided to collect bulk items that have fallen from a conveyor belt (see, for example, Patent Document 1).

JP-A-61-273411

In a ship, the hold is preferably as large as possible in order to increase the bulk loading capacity of the hold. For this reason, the installation height of the belt conveyor below the hold is limited. On the other hand, it is necessary to provide a recovery device for recovering loose materials (ore fallout) that have fallen from the belt below the belt conveyor. As described above, Patent Literature 1 does not disclose any problems and means for solving the problem of installing a recovery device in a place with a limited height in a cargo hold or the like.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to enable installation of a mechanism for recovering conveyed objects such as loose objects that have fallen from a belt even in a space where the installation height is limited.

The gist of the present invention is the following conveyor device.

(1) a conveyer that includes a plurality of belts and is configured to transfer objects to be conveyed between the plurality of belts in a predetermined order;
a collection conveyor for collecting the conveyed objects that have fallen from the at least one belt,
The collecting conveyor is a low-floor area arranged below a transfer area in which the objects are transferred between the plurality of belts and extends parallel to the floor on which the conveying conveyor is installed. and a rising area that is set apart from the delivery area and rises from the floor surface.

(2) the conveyor device is installed inside a ship that transports the object to be conveyed;
The conveyor device according to (1), wherein the floor includes a ship bottom floor installed below a hold of the ship.

(3) one of the belts includes a parallel region parallel to the floor;
one of the belts advances in a predetermined traveling direction in the parallel region;
The low floor area of the recovery conveyor is arranged below the one belt and extends in the traveling direction,
The conveyor device according to (1) or (2), wherein the recovery conveyor includes a flight that directly faces the floor surface in the low floor area.

(4) further comprising an inclined plate installed at a lower portion of the rising region and receiving from the floor plate the transported object transported by the flight;
The conveyer device according to (3) above, wherein a discharge portion of the conveyed object collected by the collection conveyor is formed at an upper end of the inclined plate.

(5) the conveyer includes a double belt that sandwiches and lifts the conveyed object;
A lifting region in which the double belt lifts the conveyed object is formed in a curved shape when the double belt is viewed from the side,
The conveyor device according to any one of (1) to (4), wherein the rising region is arranged below the curved outer side of the lifting region.

According to the present invention, it is possible to install a mechanism for collecting conveyed objects such as loose objects that have fallen from the belt even in a space where the installation height is limited.

FIG. 1 is a schematic plan view of a ship provided with a conveyor device according to one embodiment of the present invention. FIG. 2 is a schematic partial cross-sectional side view of the main part of the ship. FIG. 3 is a schematic plan view showing the configuration of a transfer conveyor and a recovery conveyor of the conveyor device. FIGS. 4A to 4D are schematic diagrams showing the basic configuration of the transfer conveyor and the basic configuration of the collection conveyor. FIG. 5(A) is a schematic partial cross-sectional side view of the main part showing the first and second transfer conveyors of the transfer conveyor and the first and second recovery conveyors of the recovery conveyor. , as seen from the starboard side. FIG. 5(B) is an enlarged view of a part of FIG. 5(A). FIG. 6(A) is a schematic partial cross-sectional side view of the main part showing the first to third transfer conveyors of the transfer conveyor and the first to third recovery conveyors of the recovery conveyor, viewed from the bow side. It shows what you see. FIG. 6B is an enlarged view of a part of FIG. 6A. FIG. 7 is a partial cross-sectional side view of the main part showing the first to third transfer conveyors and the third and fourth recovery conveyors of the recovery conveyor, viewed from the starboard side. showing. 8 is an enlarged view of the stern portion of FIG. 7. FIG. 9 is an enlarged view of the bow side portion of FIG. 8. FIG. FIG. 10 is a schematic partial cross-sectional side view of main parts showing the first and third transport conveyors, and the third and fourth recovery conveyors, as seen from the bow side. ing. 11 is an enlarged view of a part of FIG. 10. FIG.

EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates, referring drawings for the form for implementing this invention.

FIG. 1 is a schematic plan view of a ship 1 equipped with a conveyor device 3 according to one embodiment of the present invention. FIG. 2 is a schematic partial cross-sectional side view of the main part of the ship 1. As shown in FIG. FIG. 3 is a schematic plan view showing the configuration of the transport conveyor 10 and the recovery conveyor 50 of the conveyor device 3. As shown in FIG. 4A and 4B are schematic diagrams showing the basic configuration of the transport conveyor 10 and the basic configuration of the collection conveyor 50. FIG. 4A is a side view of the basic configuration of the transport conveyor 10, and FIG. ) is a side view of the basic configuration of the conveyor 10, and is a cross-sectional view viewed from the side shown in FIG. FIG. 4D is a side view of the basic configuration, and FIG. 4D is a side view of the basic configuration of the conveyor 10, and is a cross-sectional view viewed from the side shown in FIG. .

FIG. 5(A) is a schematic illustration of the main parts showing the first transport conveyor 11 and the second transport conveyor 12 of the transport conveyor 10, and the first recovery conveyor 51 and the second recovery conveyor 52 of the recovery conveyor 50. FIG. It is a partial cross-sectional side view, showing a state seen from the starboard side. FIG. 5(B) is an enlarged view of a part of FIG. 5(A). FIG. 6A is a schematic partial cross-sectional side view of the main part showing the first to third transfer conveyors 11 to 13 of the transfer conveyor 10 and the first to third recovery conveyor 53 of the recovery conveyor 50. , which shows the state seen from the bow side. FIG. 6B is an enlarged view of a part of FIG. 6A.

FIG. 7 is a partial cross-sectional side view of the main part showing the first to third conveyors 11 to 13 of the conveyor 10 and the third collection conveyor 53 and the fourth collection conveyor 54 of the collection conveyor 50. The view from the starboard side is shown. 8 is an enlarged view of the stern portion of FIG. 7. FIG. 9 is an enlarged view of the bow side portion of FIG. 8. FIG. FIG. 10 is a schematic partial cross-sectional side view of main parts showing the first transport conveyor 11 and the third transport conveyor 13, and the third recovery conveyor 53 and the fourth recovery conveyor 54, viewed from the bow side. state. 11 is an enlarged view of a part of FIG. 10. FIG.

In this embodiment, the ship 1 is in a stationary state on water without waves, and the ship bottom floor 8 described later is in a horizontal posture.

1 to 3, a ship 1 transports bulk materials 200 such as limestone, iron ore, and coal (a large number of massive pieces as objects to be transported) by sea.

A ship 1 has a hull 2 and a conveyor device 3 installed in the hull 2 .

The hull 2 has a deck 4 , a peripheral wall 5 supporting the deck 4 , a ship bottom 6 connected to a lower portion of the peripheral wall 5 , and a hold 7 arranged above the ship bottom 6 .

The peripheral wall 5 is formed in an elongated shape from the bow to the stern in plan view. The ship bottom 6 constitutes the bottom of the hull 2 . A ship bottom floor 8, which is the floor of the ship bottom 6, is an inner bottom plate of the hull 2 and is supported by the keel. The ship bottom floor 8 is, for example, the lowest floor within the hull 2 that a sailor can reach. In this embodiment, the ship bottom floor 8 is a horizontal surface in the stationary hull 2 . The bottom floor 8 of the ship is arranged below the hold 7 and is also the floor on which the conveyor device 3 in the ship is installed. A hold 7 is installed above the bottom floor 8 of the ship.

Bulk articles 200 are stored in the hold 7 . A plurality of hoppers 9 are arranged at the lower end of the hold 7 . In this embodiment, the hoppers 9 are arranged on the starboard side and the port side of the hull 2, and are arranged along the longitudinal direction Y of the hull 2 (the direction connecting the bow and the stern). Each hopper 9 is provided with an opening/closing door (not shown), which is opened when the bulk material 200 is discharged from the hopper 9 .

Bulk materials 200 discharged from the hopper 9 are carried out of the ship by the conveyor device 3 . The conveyor device 3 is installed inside the ship 1 .

The conveyor device 3 has a transport conveyor 10 for carrying the bulk items 200 out of the ship, and a recovery conveyor 50 for recovering the bulk items 200 dropped from the transport conveyor 10 and returning them to the transport conveyor 10. there is

[Configuration of Conveyor 10]
In this embodiment, the transport conveyor 10 is a belt conveyor installed in a ship, and transports bulk materials 200 on which bulk materials 200 are placed. The transport conveyor 10 includes a plurality of belts 21 and is configured to transfer bulk items 200 between the plurality of belts 21 in a predetermined order.

The transport conveyor 10 includes a first transport conveyor 11 for transporting the bulk objects 200 from the hopper 9 toward the center of the hull in the longitudinal direction Y of the hull 2 , A second conveyer 12 for conveying toward the center of the hull 2 in the horizontal direction X, a third conveyer 13 for conveying the bulk items 200 from the second conveyer 12 to above the deck 4, and a fourth transport conveyor 14 for carrying bulk objects 200 from the third transport conveyor 13 to outboard land facilities.

[Basic Configuration of Conveyor 10]
4A and 4B, each of the transport conveyors 11-14 has a transport unit 20. As shown in FIG. The conveying unit 20 has a belt 21 on which bulk items 200 are placed, a plurality of support rollers 22 that support the belt 21 , and a conveyer motor 23 for driving the belt 21 .

The belt 21 is an endless flexible belt. The support rollers 22 are provided so as to stretch the belt 21 in an elongated shape. In addition, the belt 21 is supported by three support rollers 22 so as to bend in a U-shape to hold the loose objects 200 in the upper region 24 where the outer peripheral surface of the belt 21 faces upward. A plurality of sets of three support rollers 22 are arranged in the circumferential direction of the belt 21 , with the rollers 22 forming a set. In addition, the belt 21 is supported by the support rollers 22 so as to assume a flat posture in a lower region 25 where the outer peripheral surface of the belt 21 faces downward. The conveyer motor 23 is, for example, an electric motor, and the output rotation of the conveyer motor 23 drives the belt 21 to rotate. The support rollers 22 and the transport conveyor motor 23 are supported by a frame 26 on the ship bottom floor 8 or a boom 28 which will be described later.

Among the conveyors 11 to 14, the third conveyor 13 has a double belt structure in which a pressing belt 31, which will be described later, is provided in addition to the belt 21, and the bulk material 200 is sandwiched between the double belts. It is configured such that it is conveyed upward by

[Overall Configuration of Conveyor 10]
Referring to FIGS. 1 to 5, four first transport conveyors 11 are provided in this embodiment, one on the starboard side and the port side on the front side of the hull 2 and one on the starboard side and the port side on the rear side of the hull 2. Located on each port side. Each first transport conveyor 11 extends in the front-rear direction Y as its longitudinal direction. Each first transport conveyor 11 is arranged below the hopper 9 in the hold 7 . Each first transport conveyor 11 includes a transport unit 20 . In the front two first transport conveyors 11, the transport direction D11 of the bulk object 200 is the direction from the bow to the stern, and the rear end portion of the first transport conveyor 11 is the downstream end portion 11a in the transport direction D11. ing. In the two first transport conveyors 11 on the rear side, the transport direction D11 of the bulk object 200 is the direction from the stern to the bow, and the front end portion of the first transport conveyor 11 is the downstream end portion 11a in the transport direction D11. ing.

The downstream end portion 11a of each first transport conveyor 11 rises upward as it progresses toward the center in the front-rear direction Y. Below these downstream end portions 11a, the second transport conveyor 12, the first collection conveyor 51, And a second recovery conveyor 52 is arranged. In this way, in each first transport conveyor 11, by arranging portions other than the downstream end portion 11a closer to the ship bottom floor surface 8, the height of the hopper 9 at the corresponding portion is lowered to lower the height of the hold 7. Bulk storage capacity can be increased. Furthermore, it is possible to secure a space for arranging the second transport conveyor 12, the first collection conveyor 51, the second collection conveyor 52, and the like.

The two second conveyors 12 are arranged side by side, and are arranged below the space between the downstream ends 11a, 11a of the two first conveyors 11 arranged in the front-rear direction. Each second transport conveyor 12 includes a transport unit 20 . The second transport conveyor 12 on the starboard side extends from below the two front and rear first transport conveyors 11 on the starboard side to the center side of the hull 2 in the horizontal direction X. As shown in FIG. The second transport conveyor 12 on the port side extends from below the two front and rear first transport conveyors 11 on the port side to the center side of the hull 2 in the horizontal direction X. As shown in FIG. As shown in FIG. 6, each of the second conveyors 12 is inclined upward toward the center of the hull 2 in the left-right direction X. As shown in FIG. In each of the second conveyors 12, the conveying direction D12 of the bulk items 200 is the direction from the left-right direction end of the hull 2 toward the center, and the left-right center side end of the second conveyor 12 is in the conveying direction. It is the downstream end 12a of D12. Bulk items 200 drop onto the third conveyor 13 from between the downstream ends 12 a of the second conveyors 12 .

As shown in FIGS. 2, 3, 6 and 7, in this embodiment, the third conveyor 13 is installed at the center of the hull 2 in the left-right direction X and at the center of the hull 2 in the front-rear direction Y. It is The third transport conveyor 13 includes a transport unit 20, an endless flexible pressing belt 31 arranged to face the transport unit 20, and a plurality of support rollers 32 supporting the pressing belt 31. have. That is, the third transport conveyor 13 includes double belts (the belt 21 and the pressing belt 31) that pinch and lift the bulk object 200. As shown in FIG. The third transport conveyor 13 transports bulk items 200 along the transport direction D13.

The belt 21 of the third conveyor 13 extends horizontally along the longitudinal direction Y below the downstream ends 12a, 12a of the second conveyor 12. is a parallel region 13a parallel to . The parallel region 13a extends forward from the rear end portion 13d of the third conveyor 13. As shown in FIG. The front end of the parallel region 13a is located at a position on the stern side of the second conveyer 12, and is continuous with the rising region 13b that rises upward. A pressing belt 31 is arranged in a rising region 13b of the belt 21 of the third conveyer 13, which rises upward along the conveying direction D13. A region of the pressing belt 31 , which is arranged in an arc shape when viewed from the side, is pushed by the support roller 32 toward the rising region 13 b of the belt 21 of the third conveyer 13 . As a result, the rising region 13b and the pressing belt 31 are brought into close contact with each other at both ends in the width direction, forming a space for accommodating the bulk article 200 therebetween.

With such a configuration, in the third conveyer 13 , a lifting region 33 for lifting the bulk objects 200 is formed by the rising region 13 b as a double belt and the pressing belt 31 . The lifting area 33 is formed in a curved shape (an arc shape) when the third transport conveyor 13 is viewed from the side (starboard side or port side). As a result, the belt 21 of the third conveyer 13 conveys the bulk items 200 received from the second conveyer 12 forward and then conveys them upward in cooperation with the pressing belt 31 . At the upper portion of the third conveyer 13 , the clamping of the bulk objects 200 by the rising region 13 b and the pressing belt 31 is released, and the bulk objects 200 fall onto the fourth conveyer 14 .

The fourth transport conveyor 14 has a transport unit 20 and is supported by a boom 28 installed on the deck 4 of the hull 2 . The boom 28 is rotatable, and can move the tip of the fourth conveyor 14 onto a hopper or the like (not shown) of the landing facility. Bulk items 200 are delivered from the fourth transport conveyor 14 to the hopper or the like of the landing facility.

[Configuration of Collection Conveyor 50]

With reference to FIGS. 3 and 4, in this embodiment, the collection conveyor 50 is installed inside the ship. The collection conveyor 50 is a flight conveyor having flights (flat plates, scrapers) for scraping the bulk materials 200, and conveys the bulk materials 200 in such a manner that the flights push the bulk materials 200 out. The collection conveyor 50 is supported on the ship bottom floor 8 by a frame or the like. It should be noted that the collection conveyor 50 is not limited to a flight conveyor as long as it has a configuration capable of transporting the bulk items 200 . The collection conveyor 50 collects the loose objects 200 that have fallen from the belts 21 of the respective transport conveyors 11-14. In the present invention, it is sufficient that the collecting conveyor 50 can collect at least the bulk items 200 dropped from the third conveyer 13 .

The collecting conveyor 50 includes a plurality of flight conveyors and is configured to transfer the bulk items 200 between the plurality of flight conveyors in a predetermined order.

The recovery conveyor 50 includes a first recovery conveyor 51 installed below the first transfer conveyor 11 and a second recovery conveyor arranged below the second transfer conveyor 12 for receiving bulk items 200 from the first recovery conveyor 51. 52, a third collecting conveyor 53 arranged below the third conveying conveyor 13 for receiving the bulk items 200 from the second collecting conveyor 52, and a downstream end of the third collecting conveyor 53 in the conveying direction D13 of the bulk items 200. 53 d and, for example, a fourth collection conveyor 54 that is arranged from 53 d to the first transportation conveyor 11 on the port bow side and carries out bulk items 200 from the third collection conveyor 53 to the first transportation conveyor 11 .

[Basic Configuration of Collection Conveyor 50]
4(C) and 4(D), each recovery conveyor 50 has a recovery unit 60. As shown in FIG. The collection unit 60 includes a plurality of flights 61 for pushing the bulk objects 200, a pair of endless chains 62, 62 supporting each flight 61, a chain guide 63 supporting the chains 62, 62, and the flights 61. and a collection conveyor motor 64 for driving.

The chain guides 63 are arranged at both ends in the width direction of the flights 61 , and one or a plurality of chain guides 63 are arranged along the conveying direction of the bulk objects 200 on the collection conveyor 50 . A collection conveyor motor 64 is installed at, for example, one end of the collection conveyor 50 in the transport direction of the bulk items 200 . The recovery conveyor motor 64 is, for example, an electric motor having a sprocket attached to its output shaft, and the output rotation of the recovery conveyor motor 64 drives the chains 62, 62 connected to the recovery conveyor motor 64 to rotate. The flight 61 is a plate-like member extending between the pair of chains 62, 62 and is also called a scraper. A plurality of flights 61 are arranged at equal pitches in the circumferential direction of the chain 62 . The flight 61 pushes and moves the bulk object 200 placed under the flight 61 . The flights 61 extend downward from the pair of chains 62 , 62 in a lower region 66 located below the collecting conveyor 50 and carry the bulk items 200 .

[Overall Configuration of Collection Conveyor 50]
3, 5A, and 5B, a total of four first collection conveyors 51 are provided and extend in the front-rear direction Y in the present embodiment. Bulk items 200 are conveyed along the conveying direction D51 along the front-rear direction Y on each of the first collection conveyors 51 . In this embodiment, the first collection conveyors 51 are arranged below the two first transport conveyors 11 on the starboard side near the downstream ends 11a, 11a of the two first transport conveyors 11 on the port side. are arranged below near the downstream ends 11a, 11a of the . This is because the bulk items 200 fall from the first conveyor 11 mainly near the downstream end 11 a of each first conveyor 11 . Each first collection conveyor 51 includes a collection unit 60 . It is preferable that the width of the collection unit 60 on each first collection conveyor 51 is set to be equal to or greater than the width of the first transport conveyor 11 . In the front-rear direction Y, the length of each first collection conveyor 51 is shorter than the length of the first transport conveyor 11 .

The lower, right and left sides of each first recovery conveyor 51 are surrounded by first baskets 71 . The first basket 71 is a member for receiving the dropped loose objects 200 and extends along the longitudinal direction of the corresponding first recovery conveyor 51 . The upper and lower gaps between the first basket 71 and the flights 61 are several millimeters to ten and several millimeters, and the loose objects 200 on the first basket 71 can contact the flights 61 .

The bulk items on the first basket 71 are conveyed to the second collection conveyor 52 side by the operation of the flights 61 of the first collection conveyor 51 . At the downstream ends 51 a , 51 a of each first collection conveyor 51 , bulk items 200 drop onto the second collection conveyor 52 .

3, 5(A), 6(A) and 6(B), the second recovery conveyor 52 is arranged below the first recovery conveyor 51 on the starboard side and the port side respectively. ing. That is, two second collection conveyors 52 are provided. Bulk items 200 are conveyed along the conveying direction D52 along the left-right direction X on each of the second collection conveyors 52 . Each second collection conveyor 52 is arranged in a horizontal posture in this embodiment. The second recovery conveyor 52 on the starboard side extends from below the downstream ends 51a, 51a of the two first recovery conveyors 51, 51 on the starboard side toward the center of the hull 2 in the left-right direction. The port-side second recovery conveyor 52 extends from below the downstream ends 51a, 51a of the two port-side first recovery conveyors 51, 51 toward the center of the hull 2 in the left-right direction.

A downstream end 52a of each second recovery conveyor 52 in the transport direction D52 is positioned on the center side of the hull 2 in the left-right direction. Each second collection conveyor 52 includes a collection unit 60 . At the center of the hull 2 in the left-right direction, the third conveyor 13 are arranged parallel regions 13a. A downstream end 52 a of each second collection conveyor 52 is arranged below the parallel region 13 a of the third transport conveyor 13 . It is preferable that the width of the collection unit 60 on each second collection conveyor 52 is set to be equal to or greater than the width of the second transport conveyor 12 .

Each second collection conveyor 52 is surrounded by second baskets 72 below and on both bow and stern sides. The second basket 72 is a member that receives the dropped bulk items 200 and extends along the conveying direction D52 of the second recovery conveyor 52 . The upper and lower gaps between the second basket 72 and the flights 61 are several millimeters to ten-odd millimeters, so that the loose objects 200 on the second basket 72 can come into contact with the flights 61 . Bulk items on the second basket 72 are conveyed to the third collection conveyor 53 side (center side in the left-right direction) by the operation of the flights 61 of the second collection conveyor 52 . At the downstream end 52 a of each second collection conveyor 52 , bulk items 200 drop onto the third collection conveyor 53 .

3, 6A and 7, the third recovery conveyor 53 is arranged below the second recovery conveyor 52 and in the center of the hull 2 in the horizontal direction X. is located directly below. The third collection conveyor 53 includes a collection unit 60 . The third collection conveyor 53 extends in the front-rear direction Y. As shown in FIG. It is preferable that the width of the collection unit 60 on the third collection conveyor 53 is set to be equal to or greater than the width of the third transport conveyor 13 .

The third collection conveyor 53 has a low floor area 53a and a rising area 53b.

The low-floor area 53a is arranged below the transfer area 80 where the bulk items 200 are transferred from the second conveyor 12 to the third conveyor 13, and is the ship bottom floor 8 where the third collection conveyor 53 is installed. extending parallel.

7 to 9, the low-floor area 53a is arranged in a horizontal posture and extends in the front-rear direction Y, and extends parallel to the parallel area 13b below the parallel area 13b of the third conveyer 13 (horizontally). to) is extended. That is, the low-floor area 53a extends in the traveling direction (front-rear direction Y) of the parallel area 13b. In this embodiment, the low floor area 53a extends forward from near the lower portion of the rear end portion 13d of the third conveyer 13, and is located between the lower area 25 of the belt 21 and the bottom floor 8 of the third conveyer 13. It is located in an extremely narrow area between

A boundary 53 c between the low floor area 53 a and the rising area 53 b is located below the raised area 33 . In the low-floor area 53a, the flights 61 of the third collection conveyor 53 are vertically close to the bottom floor 8 and directly face each other. That is, the third collection conveyor 53 includes a flight 61 that directly faces the ship bottom floor 8 in the low floor area 53a. The flight 61 of the third collection conveyor 53 moves along the conveying direction D13 from the stern to the bow, thereby picking up bulk items 200 dropped from the second collection conveyors 52 and the third conveyer 13 onto the bottom floor 8 of the ship. to convey.

A third basket 73 for receiving bulk items 200 is provided in the lower floor area 53a. The third basket 73 is not arranged below the low floor area 53b. The third basket 73 has side plates arranged on both left and right sides of the low floor area 53a.

The rising area 53b is installed at a location separated from the delivery area 80 (see FIG. 6A) and rises from the bottom floor 8 of the ship. The rising region 53b is continuous with the low-floor region 53a at the boundary 53c, and extends obliquely upward so that the height from the bottom floor 8 increases with distance from the low-floor region 53a (as it advances forward). there is The rising region 53 b is arranged below the curved outer side of the rising region 33 . In the rising region 53b, the height position of the flight 61 from the ship bottom floor 8 increases forward. The rising region 53b is disposed below the curved outer portion 13e of the belt 21 of the third conveyor 13, where the vertical space between the belt 21 and the ship bottom floor 8 widens toward the bow. A fourth basket 74 surrounds the lower and front and rear sides of the rising region 53b.

The fourth basket 74 is a member for lifting bulk objects 200 sent on the ship bottom floor 8 in the low floor area 53a, and extends along the conveying direction D53. A lower portion of the fourth basket 74 includes an inclined plate 74a. The inclined plate 74a is installed in the lower part of the rising area 53b and receives bulk objects 200 conveyed by the flight 61 from the bottom floor 8 of the ship. The lower end of the inclined plate 74a is continuous with the bottom floor surface 8 of the ship. The upper and lower gaps between the inclined plate 74a and the flights 61 are several millimeters to ten and several millimeters so that the loose objects 200 on the fourth basket 74 can come into contact with the flights 61. As shown in FIG. The fourth basket 74 is arranged over substantially the entire area in the conveying direction D53 in the rising region 53b, and the loose objects on the fourth basket 74 are moved to the fourth collection conveyor 54 side ( forward).

In the third collection conveyor 53, the bulk items 200 drop to the fourth collection conveyor 54 at the downstream end 53d in the conveying direction D53. That is, a discharge portion 53e for the bulk items 200 collected by the third collection conveyor 53 is formed at the upper end of the inclined plate 74a.

10 and 11, a funnel-shaped ore-falling chute 81 is arranged above the rising region 53b of the third recovery conveyor 53. As shown in FIG. The falling ore chute 81 is arranged below the curved outer side portion 13 e of the third conveyer 13 , and moves the bulk materials 200 dropped from the belt 21 of the third conveyer 13 to the rising area 53 b of the third collection conveyor 53 . invite.

The fourth recovery conveyor 54 extends from the center of the hull 2 in the left-right direction X toward the port side, for example, below the downstream end 53d of the third recovery conveyor 53 . The fourth collection conveyor 54 extends horizontally along the left-right direction X below the downstream end 53d, and rises from the ship bottom floor 8 at a port side position from the downstream end 53d. The raised portions are arranged in an S shape, for example, when viewed from the front-rear direction Y. As shown in FIG. The fourth collection conveyor 54 includes a collection unit 60 . A fifth basket 75 surrounds the lower part of the fourth collection conveyor 54 and both bow and stern sides. The fifth basket 75 is a member for receiving the bulk items 200 and extends along the conveying direction D54 of the bulk items 200 on the fourth collection conveyor 54 . The upper and lower gaps between the fifth basket 75 and the flights 61 are several millimeters to ten and several millimeters so that the loose objects 200 on the fifth basket 75 can come into contact with the flights 61 .

A fifth basket 75 is arranged over substantially the entire area of the fourth recovery conveyor 54 in the transport direction D54. Bulk items on the fifth basket 75 are conveyed to the first conveyer 11 (111) on the port bow side by the operation of the flight 61 of the fourth collection conveyor 54, for example. In the fourth collection conveyor 54, the downstream end 54a in the conveying direction D54 is located on the belt 21 of the first conveyer 11 (111) on the port bow side. falls onto the belt 21 of the first conveyor 11 . As a result, the bulk items 200 collected by the collection conveyor 50 are returned to the first transport conveyor 11 .

The fourth collection conveyor 54 may carry out the bulk items 200 to other first conveyors 11 such as the first conveyor 11 (112) in front of the port side.

As described above, according to the present embodiment, the low-floor area 53a of the third collection conveyor 53 is arranged below the transfer area 80 where the bulk items 200 are transferred from the second conveyor 12 to the third conveyor 13. , and extends parallel to the ship bottom floor 8 on which the third recovery conveyor 53 is installed. Furthermore, the rising area 53 b of the third collection conveyor 53 rises from the ship bottom floor 8 at a location separated from the delivery area 80 . According to this configuration, the height of the conveyor device 3 is bulky in the delivery area 80 of the bulk items 200 . Specifically, as shown in FIG. 6A, in the delivery area 80, the downstream end 12a of the second conveyor 12, the parallel area 13a of the third conveyor 13, and the second collection The downstream end portion 52a of the conveyor 52 and the third recovery conveyor 53 are arranged vertically. In this way, the low floor area 53a of the third collection conveyor 53 is arranged at the place where the height is bulky, and the rising area 53b is arranged at the place separated from the transfer area 80 and having a sufficient height. As a result, the bulk items 200 can be carried out to the fourth collecting conveyor 54 in the rising area 53b. Therefore, the third recovery conveyor for recovering fallen ore can be installed below the delivery area 80, which is narrow and has a large height restriction.

In particular, according to this embodiment, the installation height of the conveyor device 3 below the hold 7 is restricted in order to increase the capacity of the hold 7 . Under such restrictions, the ship's bottom floor 8 on which the conveyor device 3 is installed is used as a bottom plate casing of the third collection conveyor 53, which is a flight conveyor. Thereby, the height of the third recovery conveyor 53 can be kept low.

More specifically, the flight 61 of the third collection conveyor 53 directly faces the ship bottom floor 8 in the low floor area 53a. With this configuration, the ship bottom floor 8 can be effectively used as a bottom plate casing of the third recovery conveyor. Therefore, the height of the third recovery conveyor 53 can be reduced.

Further, according to the present embodiment, regarding the third collection conveyor 53 , the inclined plate 74 a is installed under the rising area 53 b and receives the bulk items 200 conveyed by the flights 61 from the ship bottom floor 8 . A discharge portion 53e for bulk objects 200 is formed at the upper end of the inclined plate 74a. According to this configuration, the bulk items 200 collected by the third collection conveyor 53 can be transferred to the fourth collection conveyor 54 in the rising region 53b having a sufficient height.

Further, according to this embodiment, the lifting region 33 where the double belts 21 and 31 of the third conveyer 13 lift the bulk object 200 is formed in a curved shape when the double belts 21 and 31 are viewed from the side. , and the rising area 53 b of the third collection conveyor 53 is arranged below the curved outer side of the lifting area 33 . According to this configuration, the third collection conveyor 53 can be raised below the double belts 21 and 31 where there is a margin in height, and the space near the bottom floor 8 of the ship can be effectively utilized.

The embodiments of the present invention have been described above. However, the invention is not limited to the embodiments described above. The present invention can be modified in various ways within the scope of the claims.

In the above-described embodiment, an example in which the first to fourth conveyors 11 to 14 are used has been described. However, this need not be the case. At least one of the first conveyor 11 and the second conveyor 12 may be omitted. The bulk objects 200 from the hopper 9 may be transferred from the third conveyor 13 to the fourth conveyor 14 .

Further, in the above-described embodiment, the example in which the conveyor device 3 is installed on the ship bottom floor 8 has been described. However, this need not be the case. The conveyor device 3 may be installed on a structure other than a ship.

INDUSTRIAL APPLICABILITY The present invention can be widely applied as a conveyor device.

1 Vessel 3 Conveyor Device 7 Hull 8 Bottom Floor 11-14 Transfer Conveyor 13a Parallel Area 21 Belt 33 Lifting Areas 51-54 Recovery Conveyor 53a Low Floor Area 53b Rising Area 53e Discharge Part 61 Flight 74a Inclined Plate 80 Delivery Area 200 Bulk items (transported items)

Claims (5)

a conveyer that includes a plurality of belts and is configured to transfer objects to be conveyed between the plurality of belts in a predetermined order;
a collection conveyor for collecting the conveyed objects that have fallen from the at least one belt,
The collecting conveyor is a low-floor area arranged below a transfer area in which the objects are transferred between the plurality of belts and extends parallel to the floor on which the conveying conveyor is installed. and a rising area that is set apart from the delivery area and rises from the floor surface. The conveyor device is installed in a ship that transports the object to be conveyed,
2. The conveyor system of claim 1, wherein the floor includes a bottom floor located below the hold of the vessel. One said belt includes a parallel region parallel to said floor surface,
one of the belts advances in a predetermined traveling direction in the parallel region;
The low floor area of the recovery conveyor is arranged below the one belt and extends in the traveling direction,
3. Conveyor apparatus according to claim 1 or claim 2, wherein the collection conveyor includes flights directly facing the floor surface in the low floor area. further comprising an inclined plate installed at a lower portion of the rising region for receiving the transported object transported by the flight from the floor plate;
4. The conveyor device according to claim 3, wherein a discharge portion of said conveyed object collected by said collection conveyor is formed at the upper end of said inclined plate. The conveyer includes a double belt that sandwiches and lifts the object to be conveyed,
A lifting region in which the double belt lifts the conveyed object is formed in a curved shape when the double belt is viewed from the side,
The conveyor device according to any one of claims 1 to 4, wherein the rising area is arranged below the curved outer side of the lifting area.

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