JP5005104B1 - Storage equipment - Google Patents

Abstract

Even when a large amount of particulate matter such as coal is stored in a storage such as a transport ship, the particulate matter can be discharged smoothly.
A storage facility for storing granular materials is formed in an elongated shape in a plan view, and at least a lower portion has a width that decreases downward, extends in a longitudinal direction at a lower end portion, and extends toward a side. The storage part 10 includes a receiving part 16 which is provided below the opening 18 and on which the particulate matter flowing out from the opening 18 is deposited. The particulate matter deposited on the opening 16 prevents the particulate matter from flowing out from the opening 16, and the storage facility further drops the particulate matter deposited on the receiving portion 16 from the receiving portion 16 and the dropping means 16. And a conveyor 6 provided at a position where the granular material falls to the top.
[Selection] Figure 4

Description

  The present invention relates to a storage facility, and more particularly to a storage facility for storing an aggregate of granular materials such as iron ore and coal.

  The unloading work for unloading granular materials such as coal and iron ore from a cargo ship or barge ship onto a quay is performed using, for example, a bucket crane installed on the quay. However, the unloading operation using the bucket crane as described above moves the bucket onto the barge ship, accommodates the particulate matter in the bucket, rotates the crane to move the bucket to the quay and removes the particulate matter in the bucket. The discharge operation must be repeated, which is very laborious and time consuming.

  On the other hand, in order to smoothly carry out the operation of unloading the granular material, for example, Patent Document 1 discloses a dispenser including a hopper-like storage and a rotary blade that reciprocates in the longitudinal direction of the hull along the bottom of the storage. In addition, a transport ship is disclosed that includes a conveyor for sending the granular material taken out from the bottom of the cargo hold by the dispenser to the quay.

JP 2000-43784 A

  However, if a large amount of particulate matter such as coal is stored in the storage of the transport ship as described above, the weight of the particulate matter acts on the dispenser. For this reason, there is a problem that a large resistance acts on the rotor blades of the dispenser, and the dispenser cannot move smoothly and the dispensing operation cannot be performed smoothly.

  The present invention has been made in view of the above problems, and its purpose is to enable smooth discharge of particulate matter even when a large amount of particulate matter such as coal is stored in a storage such as a transport ship. It is to be.

  The storage device of the present invention is a storage facility for storing particulate matter, and is formed in an elongated shape in a plan view, with at least a lower portion decreasing in width downward and extending in a longitudinal direction at a lower end portion. A storage part for storing the granular material in which an opening part opened to the side is formed, the storage part being provided below the opening part, and a receiving part on which the granular material flowing out from the opening part is deposited The particulate matter accumulated in the receiving part is prevented from flowing out of the particulate matter from the opening, and the storage facility further includes scraping means for dropping the particulate matter deposited on the receiving part from the receiving part, and And a conveyor provided at a position where the granular material falls from the receiving portion.

  According to the present invention having such a configuration, since the receiving portion is provided below or on the side of the opening of the storage portion main body, particulate matter such as coal accumulates in a mountain shape on the receiving portion and becomes self-supporting, Stable with the opening closed. In the present invention, since the particulate matter deposited on the receiving portion does not have a large pressure acting on the inside thereof, even when the amount of particulate matter stored in the storage portion main body is large, the particulate matter is large in the scraping means. The load is not applied and the coal can be discharged smoothly.

Further, in the present invention, the storage unit includes a pair of side walls that are inclined so that at least the lower part is close to each other, a space for storing granular materials is formed between the pair of side walls, and the opening is formed at the lower end of the side wall. The receiving portion may be formed between the pair of side walls and continuously extend from the lower end of one of the pair of side walls to the position on the side of the other side wall from the opening.
According to the present invention having such a configuration, the receiving portion extending from one side wall is located directly below the opening, and the particulate matter is deposited on the receiving portion.

In the present invention, the receiving portion includes a vertical portion extending substantially vertically downward from the lower end of one side wall, and a horizontal portion extending substantially horizontally from the lower end of the vertical portion toward the other side of the side of the opening.
According to the present invention having such a configuration, the particulate matter is deposited on the horizontal portion.

In the present invention, the storage unit body may include a closing plate that adjusts the width of the opening.
According to the present invention having such a configuration, by adjusting the width of the opening portion by the closing plate, even a granular material having a different size and weight is accumulated in a mountain shape on the receiving portion and opened by this mountain. Can be closed. Furthermore, by adjusting the width of the opening according to the storage amount of the granular material, a substantially constant amount of the granular material can always be deposited on the receiving portion.

In the present invention, the scraping means may include a scraping member that can move on the receiving portion at a substantially constant speed.
According to the present invention having such a configuration, since a substantially constant amount of granular material per hour always falls on the conveyor from the receiving portion, a stable amount of granular material can be unloaded at all times.

  According to the present invention, even when particulate matter such as coal is stored in a large amount in the storage, the particulate matter can be discharged smoothly.

It is a horizontal sectional view showing composition of a barge ship provided with storage equipment by one embodiment of the present invention. It is BB sectional drawing in FIG. It is CC sectional drawing in FIG. It is a width direction sectional view which shows the structure of the storage part and scraping means of the barge ship shown in FIG. It is a perspective view which shows the structure of the storage part and scraping means of the barge ship shown in FIG. It is an elevation view which shows the structure of the scraping means of the barge ship shown in FIG.

Hereinafter, an embodiment of a storage facility of the present invention will be described in detail with reference to the drawings. In the following description, a storage facility is provided in a barge ship, and a case where coal is transferred from this barge ship to another barge ship or a quay will be described as an example.
FIG. 1 is a horizontal sectional view showing a configuration of a barge 1 equipped with a storage facility according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line BB in FIG. 1, and FIG. 3 is a sectional view taken along line CC in FIG. It is sectional drawing.

  As shown in FIGS. 1 to 3, the barge 1 includes an elongated storage facility body 2 extending in the longitudinal direction of the barge that can be charged with coal from above, and scraping means provided at the bottom of the storage facility body 2. 4, a ship bottom conveyor 6 provided below the hopper-shaped storage facility, and a carry-out conveyor group 8 extending from the end of the ship bottom conveyor 6 to the quay.

  The storage facility body 2 has an inverted triangular cross-sectional shape in the width direction (that is, the width direction of the barge 1), and is substantially rectangular in plan view extending in the longitudinal direction (that is, the direction from the bow of the barge 1 to the stern). A pair of storage portions 10 are provided side by side in the width direction.

  4 and 5 show the configurations of the storage unit 10 and the scraping means 4, and are a cross-sectional view and a perspective view, respectively, in the width direction. As shown in FIGS. 4 and 5, the storage unit 10 is provided along a pair of side wall portions 12A and 12B that are inclined in the width direction and extend in the longitudinal direction, and a lower portion of the one side wall portion 12B. The closing plate 14 is movable up and down along the side wall portion 12B, and the receiving portion 16 is provided continuously below the side wall portion 12A.

  The pair of side wall portions 12A and 12B are inclined so as to be close to each other downward, whereby a triangular prism storage space 13 having an inverted triangular cross section between the pair of side wall portions 12A and 12B. Is formed. The lower edge of one side wall part 12A extends below the lower end of the other side wall part 12B, and is positioned substantially directly below the lower edge of the other side wall part 12B. Between the lower edge of the other side wall portion 12B, an opening 18 is formed that opens toward the side extending in the longitudinal direction. In addition, what is necessary is just to determine the inclination-angle of these side wall parts 12A and 12B according to the characteristic of the granular material stored in the storage part 10, for example, when storing coal like this embodiment, about 50 degrees. It is good to do.

  The closing plate 14 is made of a plate material extending in the longitudinal direction along the lower end portion of the side wall portion 12B. A plurality of chains 24 are connected to the upper portion of the closing plate 14, and the closing plate 14 is moved up and down along the side wall portion 12B by feeding and winding the chain 24 with a winch (not shown). Can be made. By moving the closing plate 14 up and down, the vertical width of the opening 18 formed between the pair of side wall portions 12A and 12B can be adjusted.

The receiving portion 16 includes a vertical portion 20 that extends vertically downward from the lower end edge of one side wall portion 12A, and a horizontal portion 22 that extends from the lower end of the vertical portion 20 toward the other side wall portion 12B. The height H of the vertical portion 20 and the width W of the horizontal portion 22 flow out through the opening 18 and the coal does not fall from the edge of the horizontal portion 22 until the coal deposited on the receiving portion 16 closes the opening 18. It may be determined as follows.
That is, as will be described later, the outflow of coal from the storage unit 10 to the receiving unit 16 stops in a state where the accumulated coal blocks the opening 18. At this time, the mountain of coal on the receiving portion 16 has an inclination angle of approximately the repose angle. Therefore, by determining the width W of the horizontal portion 22 of the receiving portion 16 based on the height of the opening 18 with respect to the horizontal portion 22 and the angle of repose of the coal, the coal is reduced to a height at which the opening 18 is closed by the deposited coal. It becomes possible to deposit on the receiving part 16. In addition, when storing coal like this embodiment, it is good to set the width | variety of the opening 18 to about 100 mm or less, the height H of the vertical part 20 to about 500 mm, and the width W of the horizontal part 22 to about 1000 mm.

  FIG. 6 is an elevational view showing the configuration of the scraping means 4. As shown in FIG. 6, the scraping means 4 includes a scraping member 26 that can slide in the longitudinal direction on the horizontal portion 22 of the receiving portion 16, and a wire that is connected to the scraping member 26 and forms a loop. 28 and a delivery device 30 capable of delivering the wire 28.

The scraping member 26 is made of a steel material having a bottom surface formed in a triangular prism shape having an isosceles triangle. One side surface extending from the bottom surface is formed substantially perpendicular to the bottom surface. The scraping member 26 can move along the receiving portion 16 with the bottom surface in contact with the horizontal portion 22 of the receiving portion 16 and the side surface in contact with the vertical portion 20 of the receiving portion 16.
The scraping member 26 moves back and forth along the receiving portion 16 by alternately sending the wires 28 back and forth by the sending device 30.

  As shown in FIGS. 1 to 3, the carry-out conveyor group 8 includes first to third carry-out conveyors 32, 34, and 36. The first carry-out conveyor 32 is provided below the downstream end of each ship bottom conveyor 6 so as to extend in the width direction. The second unloading conveyor 34 has an upstream end located below the downstream end of the first unloading conveyor 32 and extends obliquely upward in the longitudinal direction of the barge 1. The third carry-out conveyor 36 has an upstream end located below the second carry-out conveyor 34, and is rotatably provided around this position.

Hereinafter, the operation | work which stores coal in the barge ship 1 provided with the storage apparatus of this embodiment, and unloads the stored coal to the adjacent barge ship 1 is demonstrated.
First, when storing coal in the barge 1 provided with the storage device of the present embodiment, the closing plate 14 is lowered to close the opening 18 formed below the side wall. Thus, coal can be stored in the storage space 13 by throwing coal into the storage space 13 from above with the opening 18 closed by the closing plate 14.

  In addition, when unloading stored coal to adjacent barges, first, the barges 1 are juxtaposed, the third carry-out conveyor 36 is rotated, and the tip of the barge 1 is unloaded. Position it above.

  Then, the closing plate 14 is raised to open the opening 18. When the opening 18 is opened, the coal flows out from the storage equipment body 2 through the opening 18 to the receiving portion 16. The coal that has flowed out to the receiving portion 16 in this way is deposited on the receiving portion 16 in a mountain shape with the vertical portion 20 as a vertex. Then, the coal accumulated in the mountain shape reaches a height at which the opening 18 is blocked, and the coal is stabilized in a state where the opening 18 is blocked and does not collapse and is independent. Thereby, the outflow of coal from the storage facility main body 2 through the opening 18 is blocked.

  At this time, the width for opening the opening 18 may be adjusted to be small when the coal stored in the storage unit 10 is large, and to be large when the coal is small. As a result, a certain amount of coal is discharged to the receiving portion 16 regardless of the amount of stored coal.

  In this state, the scraping member 26 of the scraping means 4 is reciprocated over the entire length of the receiving portion 16. When the scraping member 26 moves the receiving portion 16, coal deposited on the receiving portion 16 of the moved portion falls on the ship bottom conveyor 6. Therefore, by moving the scraping member 26 at a constant speed, a substantially constant amount of coal per hour can be dropped onto the ship bottom conveyor 6.

  And in the part where the coal on the receiving part 16 falls, the coal flows out from the opening 18 again, and the coal accumulates in a mountain shape. Then, when the coal accumulated in a mountain shape reaches a height at which the opening 18 is blocked, the opening 18 is again blocked by the coal. Thus, by reciprocating the scraping member 26 of the scraping means 4, a substantially constant amount of coal per hour can be continuously scraped onto the ship bottom conveyor 6.

  The coal that has fallen on the ship bottom conveyor 6 as described above falls onto the first carry-out conveyor 32 when it is sent to the downstream end by the ship bottom conveyor 6. Then, the coal that has dropped onto the first carry-out conveyor 32 is carried to the downstream end, and falls onto the second carry-out conveyor 34. Further, the coal that has dropped onto the second carry-out conveyor 34 is carried to the downstream end, and falls onto the third carry-out conveyor 36. Then, the coal that has fallen on the third carry-out conveyor 36 is carried to a position where the coal of the barge 1 is to be deposited, and is deposited at this position.

  As described above, according to the present embodiment, since the receiving portion 16 is provided at the lower side of the opening 18 of the storage facility body 2, coal accumulates in a mountain shape on the receiving portion 16 and becomes self-supporting. In this state, the opening 18 is stabilized. And since the pile of coal deposited on the receiving part 16 in this way is low in height and no large pressure is acting on the inside, a large load does not act on the scraping member 26 of the scraping means 4 and it is smooth. Coal discharge work can be performed.

  In addition, since the closing plate 14 for adjusting the width of the opening 18 is provided, even a granular material having a different size or weight other than coal is accumulated in a mountain shape on the receiving portion 16 and is opened by this mountain. 18 can be closed. Further, by adjusting the width of the opening 18 in accordance with the amount of stored coal, a substantially constant amount of coal can always be deposited on the receiving portion 16.

  Further, since the scraping member 26 of the scraping means 4 moves the receiving portion 16 at a substantially constant speed, a substantially constant amount of coal per hour always falls from the receiving portion 16 onto the ship's bottom conveyor 6, so that a stable amount is always obtained. Coal can be unloaded.

  In addition, although this embodiment demonstrated as an example the case where the stored coal is unloaded, this invention is applicable not only to this but granular solids, such as coal and grain, for example. In this case, the closing width of the opening 18 may be adjusted by adjusting the closing plate 14 so that the particulate matter is deposited on the receiving portion 16.

  In the present embodiment, the sidewall portions 12A and 12B are inclined as a whole. However, the present invention is not limited to this, and the lower portion may be inclined and the upper portion may extend in the vertical direction. . Further, the storage space 13 may be divided into a plurality of partitions by providing a plurality of partition walls on the inside in the longitudinal direction. Moreover, in this embodiment, although the opening 18 is also provided continuously in the longitudinal direction, the some opening 18 may be provided along with the longitudinal direction at intervals.

In the present embodiment, the horizontal portion 22 of the receiving portion 16 is provided at a position lower than the lower end of the opening 18, but this is not limiting, and the horizontal portion 22 may be provided at the same height as the lower end of the opening 18.
Furthermore, in the present embodiment, the opening 18 is opened substantially toward the side. However, the present invention is not limited to this, and a configuration may be adopted in which the opening 18 opens downward. In such a case, for example, a horizontal plate-like receiving part is provided below the opening, and on both sides of the receiving part, the particulate matter can be scraped from between the pair of side wall parts and the receiving part. May be.

  In the present embodiment, the case of unloading from a barge ship to another barge ship or a cargo ship has been described. However, the present invention is not limited to this, and the present invention can also be applied to unloading from a barge ship to a quay or the like. Furthermore, although this embodiment demonstrated the case where a storage facility was provided on the barge ship, it is not restricted to this, It can also install on land, such as a quay, and can also install in a cargo ship. By installing on the quay in this way, it can also be used when loading particulate matter on a barge or cargo ship.

DESCRIPTION OF SYMBOLS 1 Barge ship 2 Storage equipment main body 4 Scraping means 6 Ship bottom conveyor 10 Storage part 12A, 12B Side wall part 14 Closing plate 16 Receiving part 18 Opening 26 Scraping member

Claims (1)

A storage facility for storing particulate matter,
Stores the granular material formed in an elongated rectangular shape in a plan view, with at least a lower portion decreasing in width downward, extending in a longitudinal direction at a lower end portion, and having an opening portion opening in a lateral direction. Including a reservoir to
The storage unit is provided below the opening so as to extend along the opening, and has a receiving part on which the granular material flowing out from the opening is deposited on the upper part, and the granular material deposited on the receiving part The object prevents the outflow of the particulate matter from the opening,
Furthermore, the storage facility comprises:
Scraping means for dropping the particulate matter deposited on the receiving part from the receiving part;
A conveyor provided at a position where the granular material falls from the receiving part at the top;
A closing plate for adjusting the width of the opening,
The storage unit includes a pair of side walls that are inclined so that at least the lower part is close to each other, a space for storing the granular material is formed between the pair of side walls, and the opening is between the lower ends of the side walls. Formed,
The receiving portion extends continuously from the lower end of one of the pair of side walls, and extends to the position on the other side of the sidewall from the opening,
The receiving part includes a vertical part extending substantially vertically downward from a lower end of the one side wall, and a horizontal part extending substantially horizontally from the lower end of the vertical part to the other side wall side than the opening part,
The scraping means includes a scraping member that is made of a triangular prism-shaped member and is movable at a substantially constant speed on the receiving portion in a state where a bottom surface is in contact with the horizontal portion and one side surface is in contact with the vertical portion. A storage facility characterized by that.

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