JPS6341323A - Unloading method and unloading device - Google Patents

Abstract

PURPOSE:To highly efficiently unload cargoes, by a method wherein a bulky cargo is unloaded from a ship bottom by means of an unloader on the quay side and is charged in a hopper installed on the deck of a bulky cargo ship, and the hopper is connected to the quay side through a belt conveyor. CONSTITUTION:A trolley 12 is moved over a boom 11 of an unloader 2, erected to a quay 1, to a position right above the hatch of a cargo ship 4. A grab bucket 3 is lowered from the trolley 12 to scrape up a bulky cargo 6 in a hatch, and the cargo is charged down in a hopper 18 of an unloading device 16. A belt conveyor 19 is installed between the unloading device 16 and a belt conveyor 13 on the quay 1 for unloading. This constitution efficiently and rapidly unloads cargo, and prevents a bulky cargo from being dropped between the quay and the cargo ship.

Description

[Detailed Description of the Invention] "Field for FL use in m-rakudo" The present invention relates to a newly developed cargo unloading method for unloading bulk materials loaded on a cargo ship, and a method for carrying out this method. The invention relates to a device.

``Prior Art'' Until now, the method shown in FIG. 2 has been known as a method for unloading bulk materials loaded on a cargo ship.

This uses the graph bucket 3 of the unloader 2 installed on the quay 1 side, so the reference numeral 4 in the figure is a cargo ship for bulk materials, 5 is the hold of the cargo ship 4, and 6 is a hold for ore or other cargo. It is loose material such as powder.

The unloader 2 has a main body frame 8 that can run on rails 7 laid on the quay 1, a hopper 9 attached to the middle height of the main body frame 8, and a hopper 9 that extends from the main body frame 8 toward the sea 10. It is equipped with a boom 11, a trolley 12 that runs on the boom 11, and the graph bucket 3 held on the trolley 12 so that it can be raised and lowered. The graph bucket 3 is moved onto the loose material 6 to grab the loose material 6, and then the graph bucket 3 is moved onto the hopper 9, and the loose material 6 is dropped into the hopper 9.

A belt conveyor 13 is provided below the hopper 9 as a device for conveying bulk materials 6 to a warehouse or the like.
3, they are sequentially transported to a warehouse etc.

"Problems to be Solved by the Invention" By the way, as mentioned above, the method for unloading bulk goods 6 in which the graph bucket 3 of the unloader 2 is run from the top of the cargo ship 4 to the top of the hopper 9 on the ground side is as follows. There are some problems.

One is that a part of the loose item 6 caught in the graph bucket 3 is
While the graph bucket 3 was being moved toward the hopper 9, it fell and landed on the deck of the cargo ship 4 and around the transport route.
and the quays should be contaminated.

Another problem is that most of the time for one load handling using the graph bucket 3 is spent on reciprocating the graph bucket 3, and in order to reduce the work time, it is necessary to This means that it is necessary to make extensive modifications to the existing unloader 2, such as by significantly increasing the movement speed of the unloader 12.

This invention was made in view of the above-mentioned circumstances, and provides a cargo unloading method that can solve the problems of the existing unloader by using it in combination with the existing unloader installed on the quay side. To provide a device for carrying out unloading operations, that is, to prevent the surrounding area from being contaminated by falling bulk materials during cargo unloading operations, and to enable one-time cargo handling by unloaders without modification of existing unloaders. It is an object of the present invention to provide a cargo unloading method and its device which can significantly shorten the reciprocating time required for cargo handling operations.

"Means for Solving the Problems" The unloading method according to the present invention utilizes an unloader installed on the quay side to transfer bulk goods loaded on a cargo ship to a conveyor such as a conveyor on the quay side. In this method, bulk materials loaded on a cargo ship are grabbed by the graph bucket of the unloader and thrown into a hopper installed on the cargo ship. to the transport device.

The apparatus for carrying out this method includes a main body frame installed on a cargo ship, a hopper supported by the main body frame for receiving bulk materials grabbed by the graph bucket of the unloader, and a hopper with one end located below the hopper. and a belt conveyor disposed such that the other end thereof is located above the belt conveyor on the quay side, and conveys the loose material thrown into the hopper to the belt conveyor on the quay side.

"Operation" The cargo unloading method according to the present invention is such that bulk materials loaded on a cargo ship are grabbed by a graph bucket of an unloader installed on the quay side and thrown into a hopper installed on the cargo ship. Bulk materials are sent to the quayside transport device using a belt conveyor, and cargo handling using the unloader's graph bucket only takes the distance from the hold of the cargo ship to the hopper, compared to the conventional case where cargo handling was performed using the unloader alone. As a result, the travel distance of the graph bucket on the unloader is significantly shortened, and as a result, the time required for the reciprocating movement of the unloader for one cargo handling operation is significantly shortened, without making any modifications to the existing unloader. Time is significantly reduced.

In addition, with this method, the transportation of bulk materials from the hopper to the conveyance device on the ground is carried out using a belt conveyor, which prevents as much as possible the inconvenience of loose materials falling between the cargo ship and the quay, and This will prevent pollution of the environment such as the sea and quays.

The apparatus shown in the present invention includes a main body frame installed on a cargo ship, a hopper supported by the main body frame for receiving bulk materials caught by the graph bucket of the above-mentioned Anlog, and a hopper located at one end below the hopper. The belt conveyor is equipped with a belt conveyor whose curved ends are disposed on the belt conveyor on the quay side in a staggered manner and sends the loose materials thrown into the hopper to the belt conveyor on the quay side. If the unloader is installed on the deck of a berthed cargo ship, it is possible to provide a transport path from the deck of the cargo ship to the transport device on the quayside. , the above-mentioned cargo unloading method can be carried out successfully.

"Embodiment" Hereinafter, an embodiment of a cargo lifting device and its device according to the present invention will be described based on the drawings.

FIG. 1 shows a cargo lifting device 16 and an existing unloader 2 according to the present invention. The configurations of the unloader 2 and the cargo ship 4 in FIG. 1 are the same as those of the conventional product shown in FIG. 2, and the same numbers as in FIG. 2 are used to omit the explanation.

The cargo unloading device 16 of this embodiment includes a main body frame 17 installed on a cargo ship 4, a hopper 18 supported by the main body frame 17, and receiving bulk materials 6 grabbed by the graph bucket 3 of the unloader 2. One end is located below this hopper 18, and the other end is placed on the belt conveyor 13 on the quay wall 1 side.
The bulk goods 6 thrown into the
A belt conveyor 19 is provided.

The body frame 17 described in the nf construction may be fixed at an appropriate position facing the deck of the cargo ship 4 or inside the hold 5, or rails or the like may be laid, or wheels for running may be provided on the cargo lifting device 16 itself. It may also be made movable.

A cargo lifting method using the cargo lifting device 16 as described above will be explained.

First, the unloading device 16 is installed on the deck of the cargo ship 4 which has been berthed by the unloader 2 provided on the quay 1 side.

Then, the bulk goods 6 loaded on the cargo ship 4 are transferred to the quay 1.
It is grabbed by the graph bucket 3 of the unloader 2 installed on the side and thrown into the hopper 18 installed on the cargo ship 4, and then
The graph bucket 3 starts the next cargo handling operation, and thereafter repeats the same operation. On the other hand, the bulk material 6 put into the hopper 18 is sent by a belt conveyor 19 to the conveying device 13 on the quay l side.

If the work is carried out in this way, cargo handling by the graph bucket 3 of the unloader 2 will only be carried out from the cargo hold 5 of the cargo ship 4 to the hopper 18, compared to the conventional case in which cargo handling is carried out only by the unloader 2. , the traveling distance of the graph bucket 3 on the unloader 2 is significantly shortened, and as a result, the reciprocating time required for one load handling of the unloader 2 can be significantly shortened without modifying the existing unloader 2. , cargo handling time is significantly reduced.

In addition, in this method, the transportation of bulk materials 6 from the hopper 18 to the conveyance device 13 on the ground is carried out by the belt conveyor 19, so that inconveniences such as bulk materials falling between the cargo ship 4 and the quay l are minimized. This also prevents pollution of the environment such as the sea and quays along the transport route.

"Effects of the Invention" As is clear from the above explanation, the cargo unloading method according to the present invention is such that bulk goods loaded on a cargo ship are grabbed by a graph bucket of an unloader installed on the quayside and installed on the cargo ship. The bulk materials placed in the hopper are sent to the quay-side transport device using a belt conveyor, so cargo handling using the unloader's graph bucket can be carried out from the cargo ship's hold to the hopper, and the unloader alone can handle the cargo. Compared to the conventional method, the traveling distance of the graph bucket on the unloader has been significantly shortened. This results in a significant reduction in cargo handling time.

In addition, with this method, the transportation of bulk materials from the hopper to the conveyance device on the ground is carried out by a belt conveyor, so inconveniences such as loose materials falling between the cargo ship and the quay are prevented as much as possible, and This will prevent pollution of the environment such as the sea and quays.

Furthermore, the apparatus shown in the present invention includes a main body frame installed on a cargo ship, a hopper supported by the main body frame for receiving bulk materials grabbed by the graph bucket of the unloader, and one end of the hopper under the ten brim. A belt conveyor is arranged such that the other end thereof is located on the belt conveyor on the quay side, and the belt conveyor is arranged such that the other end is located on the belt conveyor on the quay side and sends the loose materials thrown into the hopper to the belt conveyor on the quay side. If it is installed on the deck of a berthed cargo ship using an unloader provided on the side, it is possible to provide a transport path from the deck of the cargo ship to the transport device on the quay side, and the above-mentioned unloader and By working together, the above-mentioned cargo unloading method can be successfully carried out.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of a cargo lifting device according to the present invention, and FIG. 2 is an explanatory diagram of a cargo handling method using a conventional unloader. 1... quay, 2... unloader, 3...
...Graph bucket, 4...Cargo ship, 5...
... Ship hold, 6 ... Bulk goods, 13 ... Belt conveyor, 16 ... Cargo lifting device, 17 ...
...Body frame, 18...Hopper, 19...
...belt conveyor. Applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 1

Claims (2)

[Claims] (1) A method of unloading bulk goods loaded on a cargo ship onto a conveyor or other conveyance device on the quay side by using an unloader installed on the quay side. This cargo unloading method is characterized in that the objects are grabbed by the graph bucket of the unloader and thrown into a hopper installed on the cargo ship, and the loose objects thrown into the hopper are sent to a conveyance device on the quay side by a belt conveyor. (2) A cargo unloading device that is used in combination with an unloader installed on the quay side when unloading bulk goods loaded on a cargo ship to a conveyor or other transport device on the quay side, A main body frame to be installed, a hopper supported by the main body frame to receive bulk materials grabbed by the graph bucket of the unloader, one end of which is located below the hopper, and the other end of which is located on the belt conveyor on the quay side. and a belt conveyor which is arranged in a manner similar to the above and conveys the bulk materials thrown into the hopper to a belt conveyor on the quay side.