JPH11227682A - Bulk carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform loading and unloading of bulk cargo at a wharf equipped with poor loading/unloading facilities. SOLUTION: A storage chamber 3 is made in a hopper shape, and thereover a belt conveyor 8 is installed which moves in reciprocations, receives bulk cargo from a receiving hopper 10, and drops into the storage chamber 3. Thus a loading facility L is formed. A discharge machine 17 running in reciprocations and a belt conveyor 18 to carry the exhausted bulk cargo are installed on the bottom of the storage chamber 3, and a cargo lifting facility U is formed from a vertical belt conveyor 19 to send the cargo therefrom to over an upper deck 4 and a belt conveyor 21 to carry it out onto a wharf.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulk carrier having a loading facility and a discharging facility.

[0002]

2. Description of the Related Art Amorphous solid cargoes composed of ores, coals, limestones, wood chips, grains, cement, and other small lumps, granules, and powders, ie, bulk carriers for transporting bulk materials by sea, are mainly used in bulk carriers. Those navigating along coastal areas often have to carry out cargo handling work at piers with incomplete harbor handling equipment.

[0003] For this purpose, for unloading bulk materials in a storage tank formed in a hold, it is considered to provide an unloading facility for unmanned and unloading to a predetermined location on the wharf. 2-33196.

[0004] The unloading equipment of the bulk carrier described in the above-mentioned publication has a storage tank provided in the hold formed in a hopper shape long in the longitudinal direction of the hull, and a dispensing machine reciprocating in the longitudinal direction of the hull along the bottom thereof. The bulk material is discharged little by little from the bottom of the storage tank, and the discharged bulk material is sent to the bow or stern side of the hold end by the first conveyor means extending in the longitudinal direction of the hull, and then the second material extending in the vertical direction. And is carried out from the upper deck by the above-mentioned conveyor means, and further carried out by the third conveyor means to be sent to a predetermined place on the wharf.

[0005] According to this unloading equipment, the bulk material can be unmannedly discharged from the storage tank by the hopper-like storage tank and the dispenser, and the bulk material can be automatically discharged to the quay by three conveyor means. Can be carried out to a predetermined place, and the unloading operation can be performed on a pier having no unloading facility.

[0006]

On the other hand, for loading bulk materials into a storage tank of a bulk carrier described in the above-mentioned publication, for example, a conveyor is mounted on a cantilever boom that can be turned or translated on a wharf. It is necessary to use a loading facility equipped with a chute, open the hatch of the storage tank, and throw loose materials from the chute.

[0007] In other words, large-scale loading equipment as described above is required in order to load bulk materials so as not to significantly disturb the balance of the hull, and loading work on a pier without such equipment is required. It is practically impossible or extremely difficult.

Further, since the hatch is opened during the loading operation, not only can the operation during rainfall be impossible,
It is difficult to respond to sudden changes in weather.

The present invention did not provide adequate cargo handling equipment for conventional bulk carriers, especially bulk carriers navigating coastal areas where loading and unloading are often performed at imperfect wharves in port cargo handling facilities. SUMMARY OF THE INVENTION It is an object of the present invention to provide a bulk carrier with a function capable of smoothly performing cargo handling work at an incomplete wharf of a harbor cargo handling facility.

[0010]

SUMMARY OF THE INVENTION The present invention comprises a hopper-shaped storage tank that is long in the longitudinal direction of a hull, a loading facility for putting loose materials into the storage tank, and a discharge facility for unloading loose materials from the storage tank to the pier. It was a bulk carrier. A loading hopper is installed on the upper deck to receive bulk materials, and a loading hopper is installed above the storage tank so as to be able to reciprocate in the longitudinal direction of the hull and receives bulk materials from the receiving hopper to the storage tank from the sending end. And a conveyor means for dropping in. Also, a dispensing machine that reciprocates the unloading equipment in the longitudinal direction of the hull along the bottom of the storage tank and discharges the bulk material little by little from the storage tank, and a first machine that sends the bulk material discharged to the front or rear of the storage tank along the bottom of the storage tank. Conveyor means, second conveyor means for sending bulk material from above or behind the storage tank to above the upper deck, and third conveyor means for sending bulk material from above the upper deck to a predetermined location on the quay. And

[0011] With the bulk carrier having the above-described structure, the bulk can be supplied to the receiving hopper by using a belt conveyor, a grab bucket, or the like from the wharf. Can be loaded into the port, and bulk can be unloaded to specified locations even on piers without harbor handling equipment.

Further, according to the present invention, in the bulk carrier described above, the conveyor means of the loading facility is surrounded by a cover body which is openly connected to the storage tank, the receiving hopper is connected to the cover body, and the second means of the unloading facility is provided. The portion extending above the upper deck of the conveyor means and the third conveyor means are each surrounded by a cover body.

With the bulk carrier having the above-mentioned structure, each conveyor means is protected from rainwater, seawater, etc., so that it is possible to work during rainfall, and it is easy to respond to sudden changes in weather. This has enabled the maintenance of conveyor means during navigation, the prevention of dust scattering during work, and the reduction of noise leakage.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2. A storage tank 3 is provided inside a hold 2 formed from near the bow to near the stern of a hull 1. FIG. ing. The storage tank 3 has a bottom portion formed by an inclined wall 3a and a flat bottom wall 3b at a lower portion thereof, and has a hopper shape that is long in the longitudinal direction of the hull as a whole.

The upper deck 4 which is the ceiling of the storage tank 3 has a storage tank 3
And a slit-shaped input port 5 having a length extending over the entire length thereof is provided on the center line of the input port 5.
And a cover body 6 is constructed on the upper deck 4 so as to cover the upper deck.

A bogie 9 equipped with a belt conveyor 8 is built in the cover body 6.
Reciprocate on the rails laid inside. The belt conveyor 8 is capable of reversing the conveying direction, receives the bulk material supplied to the receiving hopper 10, drops from the sending end positioned at one end of the storage tank 3 through the input port 5, and drops into the storage tank 3. When a pile having a predetermined height is formed, the operation of slightly moving the cart 9 to form a pile having a predetermined height adjacent to the preceding pile is repeated. Then, when piles are formed in about half the space of the storage tank 3, the operation of reversing the conveying direction of the belt conveyor 8 and successively forming piles of a predetermined height from the opposite end is repeated.

The receiving hopper 10 is electrically connected directly to the cover body 6 without any gap, and has an opening / closing lid 10a at the top opening. This allows the opening / closing lid 10a to be closed other than when the bulk material is supplied, thereby preventing entry of rainwater or the like. In addition, the cover body 6 protects the stacking machine 7 composed of the belt conveyor 8 and the cart 9 from rainwater, seawater, and the like, and can prevent scattering of dust during the loading operation.

The receiving hopper 10 and the loading machine 7 constitute a loading facility L, and the belt conveyor 8 is a preferred embodiment of the conveyor means for receiving bulk materials from the receiving hopper 10 and dropping them into the storage tank 3. It is a form.

The bottom wall 3b is provided with a slit-shaped payout port 15 having a length extending over the entire length of the bottom wall 3b. Is installed, and supports the dispensing machine 17 so as to be able to reciprocate in the longitudinal direction of the hull.

The dispensing machine 17 has a widely known structure described in Japanese Utility Model Application Laid-Open No. 2-33196, etc., and has a large number of blades 17 curving in a spiral shape and projecting radially.
a reciprocates between both ends of the storage tank 3 while rotating along the upper surface of the bottom wall 3b, thereby scraping the bulk of the storage tank 3 sequentially from the lowest layer and dropping and discharging the same from the payout port 15. is there. The rotation locus of the tip of the blade 17a is the bottom wall 3
The width is slightly smaller than the width of b, and this and the hopper shape allow the bulk material to be discharged from the storage tank 3 without leaving any excess.

A first conveyor means comprising a belt conveyor 18 is provided below the payout port 15 along the longitudinal direction thereof. The first conveyor means receives the bulk material falling from the payout port 15 and forwardly or in front of the storage tank 3. Hold 2 formed at the rear
Send in the space. A second conveyor means consisting of a vertical belt conveyor 19 is provided from this space to above the upper deck 4, and is transferred by dropping from a delivery end of the belt conveyor 18 to a delivery end of the vertical belt conveyor 19. The loose objects are sent above the upper deck 4.

A boom 20 is supported on the upper deck 4 in a cantilever manner so as to be capable of turning and raising and lowering, and a third conveyor means including a belt conveyor 21 is installed on the boom 20. The bulk transferred by dropping from the delivery end of the vertical belt conveyor 19 to the delivery end of the belt conveyor 21 falls from the delivery end and is carried out to a predetermined location on the pier.

The vertical belt conveyor 19 is a widely known conveyor means for transporting bulk materials from a low place to a high place in a sealed state with two endless belts facing each other.

The portion extending above the upper deck 4 of the vertical belt conveyor 19 is wrapped in a cover 22 having a chute 22a located below the sending end. Further, the belt conveyor 21 is wrapped in a cover body 23 provided on the boom 20 except for the feeding end and the feeding end.

The cover members 22 and 23 prevent rainwater, seawater, and the like from adhering to the vertical belt conveyor 19 and the belt conveyor 21 or entering the hold 2 and minimize scattering of dust during unloading work. Can be limited.

The dispenser 17, the belt conveyor 18,
The vertical belt conveyor 19 and the belt conveyor 21 constitute an unloading facility U, and these conveyors are a preferred embodiment of the conveyor means for carrying the bulk of the storage tank 3 to the pier.

The bulk carrier in the embodiment described so far has one storage tank 3 provided in the hold 2, but the present invention is not limited to this, and a plurality of storage tanks are provided. 3 also applies.

That is, the bulk carrier shown in FIG. 3 has two storage tanks 3 arranged side by side.
Belt conveyor 8 for loading bulk materials, dispensing machine 17 for unloading equipment U, belt conveyor 1 for transporting discharged bulk materials
8 are installed in each storage tank 3.

A single receiving hopper 10 is provided, and a belt conveyor 25 for sending the bulk material received from the central portion of the storage tank 3 upward and a distribution chute 26 for separating the bulk material falling from the delivery end thereof into two parts, and There are provided two belt conveyors 27 and 28 for distributing the bulk materials to the belt conveyor 8 for receiving the bulk materials and putting them into the two storage tanks 3 separately. These belt conveyors 25, 2
It is preferable that the cover 7 and 28 are also surrounded by a cover (not shown) to protect them from rainwater, seawater, and the like.

Further, two belt conveyors 29 and 30 for relay are installed in order to transfer bulk materials from the sending ends of the two belt conveyors 18 of the unloading equipment to the sending ends of one vertical belt conveyor 19. Have been.

Further, the bulk carrier shown in FIG.
Except for the central part, two storage tanks 3 each on the bow and stern sides
The receiving hopper 10 of the loading facility L, the belt conveyor 8, the belt conveyor 18 of the unloading facility U, the vertical belt conveyor 19, and the unillustrated dispensing machine are installed in the respective storage tanks 3. Have been.

The belt conveyor 18 also serves as one of the belts of the vertical belt conveyor 19, so that they have a continuous integral structure. Furthermore, the bulk material delivered from the delivery ends of the two vertical belt conveyors 19 belonging to the two storage tanks 3 on the bow side and the delivery ends of the two vertical belt conveyors 19 belonging to the two storage tanks 3 on the stern side. Are conveyed to the feed ends of the two belt conveyors 21 by belt conveyors 31 and 32 for collection, respectively. In addition, the belt conveyors 31 and 32 for collection are also rainwater,
It is preferable to surround with a cover (not shown) to protect from seawater.

According to this embodiment, two storage tanks 3 on the bow side are provided.
And the two storage tanks 3 on the stern side can be loaded with different types of bulk materials, and can be individually loaded and unloaded without fear of mixing them.

[0034]

According to the present invention represented by the above-described embodiments, bulk materials are supplied to the receiving hopper not only at a wharf having incomplete port cargo handling equipment but also at a wharf without such equipment. If such means are obtained, it can be automatically loaded and loaded into the storage tank without greatly disturbing the balance of the hull, and can be automatically carried out to a predetermined place on the wharf.

Further, by wrapping the conveyor means disposed above the upper deck with a cover body, it becomes possible not only to work during rainfall, but also to cope with sudden changes in the weather, and also to make it easy to handle sudden changes in the weather. It can measure security and prevent dust scattering during work.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is an explanatory plan view showing another embodiment of the present invention.

FIG. 4 is an explanatory plan view showing still another embodiment of the present invention.

[Explanation of symbols]

1 hull, 2 hold, 3 storage tank, 4 upper deck,
6, 22, 23 cover body, 8, 18, 21 belt conveyor, 19 vertical belt conveyor, 10 receiving hopper, 17 payout machine, L loading equipment, U unloading equipment,

Claims (2)

[Claims] A hopper-like storage tank which is long in the longitudinal direction of the hull is provided in a hold, and comprises a loading facility for putting loose materials into the storage tank and a discharge facility for discharging bulk materials from the storage tank to a wharf. A bulk carrier, wherein the loading facility is installed on an upper deck and receives a bulk material, and a bulk material from the receiving hopper is installed above the storage tank so as to be able to reciprocate in a hull longitudinal direction. Conveyor means for receiving and receiving the water from the delivery end and dropping into the storage tank, wherein the unloading equipment reciprocates in a hull longitudinal direction along the bottom of the storage tank and discharges the bulk little by little from the storage tank. First conveyor means for feeding the discharged bulk material to the front or rear of the storage tank along the bottom of the storage tank, and second conveyor means for feeding bulk material from the front or rear of the storage tank to the upper deck. And comprising a third conveyor means for feeding the loose material from above of the upper deck to the predetermined position of the wharf, it rose product carriers, characterized in that. 2. The bulk carrier according to claim 1, wherein the conveyor means of the loading facility is surrounded by a cover body which is in open communication with the storage tank, and the receiving hopper is electrically connected to the cover body. A bulk carrier, wherein a portion of the unloading facility extending above the upper deck of the second conveyor means and a third conveyor means are each surrounded by a cover body.