JPS5928948Y2 - coal ship - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coal ship that makes effective use of void space.

In recent years, with the rise in oil prices, there has been an opportunity to reconsider coal as a fuel, and coal-fired ships are once again being considered for ships.

By the way, one of the problems with coal-fired ships is how to secure a bunker.

When using heavy oil as fuel, since it is a liquid, it was possible to use a double bottom on the bottom of a ship that is not used as a cargo hold, but since coal is solid, a double bottom, etc. could be used as a coal storage. It is difficult.

Therefore, in the past, the cargo hold in the center of the ship was used as a coal storage, taking into consideration the trim balance of the ship.

Therefore, the volume of the cargo hold decreased accordingly, and in order to secure the same cargo hold capacity, the ship had to be increased in size accordingly.

This invention was developed to solve these problems, and uses the wing space located above the side of the ship as a coal storage, which is necessary for bulk carriers but is only a void space when loading cargo. The purpose of this project was to provide a coal ship with a similar design.

In this invention, the wing space located above the side of the ship is used as a coal storage, and a coal supply tank that communicates with the coal storage through an upper coal supply port is provided in the front part of the engine room, and the coal supply port is positioned at the front of the engine room. The above object has been achieved by providing a coal transport device within the coal storage for moving the coal.

An embodiment of the present invention will be described below based on the drawings.

In the figure, 1 is a ship, and a plurality (6 in the embodiment) of ships 2A, 2B, 2C, 2D, and 2E are arranged in the bow and stern direction.

It has 2F and has a central conveyor section 3 in the middle.

The vessels 2A to 2F have a center hopper wall 4 and a side hopper wall 5A in cross section.

5B form left and right ship bottoms 6A, 6B, and further form a ship bottom hopper 7 which is wavy in longitudinal section.

Screw conveyors 8A, 8B extending toward the inside of the ship are disposed at each wave bottom of the ship bottoms 6A, 6B, and the outer ends of these screw conveyors 8A, 8B are connected to the side hopper walls 5A,
5B, and its inner end is supported by cases 10A and 10B provided in a space 9 within the center hopper wall 4.

In addition, each screw conveyor 8A, 8B has a case 10A.
, 10B are separately driven by drive devices 11A and 11B attached to the respective parts.

Said case 10A. Inside 10B is a Cheno conveyor 12A in the bow and stern direction.

12B are arranged, and these conveyors 12A.

12B ends in central conveyor section 3.

The above 8A, 8B to 12A, and 12B constitute the unloading device 13.

A packet conveyor 14 is provided within the central conveyor section 3, to which the Cheno conveyors 12A, 12B are connected at its reception opening.

A pair of packet conveyors 14 are provided on the bow side and the stern side, and penetrate through the upper deck 15, respectively, and have their discharge ports 16 located above the upper deck 15.

The upper part of each of the ships 2A to 2F is openable and closable.
7A, 17B, 17C, 17D, 17F, and 17F are provided.

Reference numeral 18 denotes a hopper-shaped supply tank formed in the front part of the engine room 19. The upper part of the tank 18 is a coal storage tank 20 formed by a wing space located above the side of the ship.
It communicates via 4.

One or more coal drop ports 21 are formed at the lower end of the supply tank 18, and a belt conveyor 22 is provided to receive the coal from the coal drop ports 21.

In addition, the upper deck 1 corresponding to the coal storage 20 and the supply tank 18
5 is provided with coal input ports 23A and 23B that can be opened and closed.

In the embodiment, only the wing space located above the side of the two ships adjacent to the engine room 19 is shown as the coal storage 20, but when this space is small, the wing space located above the side of the adjacent ship 2B is shown. It is also possible to expand the coal storage space by using the wing space 24 located above the intermediate portion between the vessels 2A and 2B.

A coal conveying device 25 is provided in the coal storage 20 to move the coal in the coal storage 20 to the position of the group of coal supply ports 34 above the supply tank 18.

In other words, the coal conveying device 25 has a four-sided steel frame structure 27 with one side on the hull centerline side hinged 26, and a chain member stretched between wheels 28 attached to a plurality of locations on the frame structure 27. 29, a large number of protrusions 30 attached to this chino 29, and a driving monitor linked to one wheel shaft. It is installed so that one side of the opposing hull side plate is placed on the top surface of the coal stored at the bottom of the coal storage 20, which has a roughly V-shaped cross section, and the rotation direction of the cheno 29 is set on the top surface of the stored coal. It is installed in such a direction that the coal scraped by the projections 30 is transferred to the position of the coal supply port 34 above the supply tank 18.

When the cheno 29 moves along one side of the frame structure 27 on the hull centerline side, the protrusion 30 of the cheno 29 is spaced apart from the upper surface of the stored coal, and is in a position not to scrape the coal.

Further, as the amount of coal decreases, the frame structure 27 moves down around the hinge stop 26, and one side of the frame structure 27 on the hull side plate follows the upper surface of the stored coal, thereby transferring the coal.

32 has its starting end connected to the discharge port 1 of the packet conveyor 14.
6, and a revolving type cenoconveyor 33 that can be swung out of the vessel is disposed at its terminal end.

Powdered materials such as grain and pulverized coal are loaded onto ships 2A to 2F using conveyors on the loading port side.
It will be held on the 7th floor.

Then, coal is loaded into the supply tank 18 and coal storage 20 through the opened coal input ports 23A and 23B.

After this loading is completed, the vessel 1 is transported by navigation, but during this transportation, the engine room 1
At 9, the coal taken out from the supply tank 18 is used.

That is, the coal in the supply tank 18 falls from the coal drop port 21 onto the belt conveyor 22 and is conveyed.

When the coal in the supply tank 18 decreases, it is replenished with coal falling from the coal storage 20 side through the coal supply port 34.

When the coal at the coal supply port 34 group runs out, the wing space located above the ship's side of the coal storage 20 is replenished with coal.

This drives the coal conveying device 25, and as described above, scrapes the upper surface of the stored coal with the protrusion 30 of the chino 29, which moves one side of the frame structure 27 on the side of the hull in the direction toward the coal supply port 34, and scrapes the top surface of the stored coal. This is done by transferring the coal to the position of the group of coal supply ports 34 above the supply tank 18.

Unloading of powder and granules is carried out as follows.

That is, the screw conveyor 8 of any ship 2A to 2F
A, 8B and Cheno conveyor 12A, 12B.

Packet conveyor 14 and both Cheshi conveyors 32
, 33 are driven.

Then, the powder and granular material in any of the vessels 2A to 2F is transferred to the screw conveyor 8A.

8B into the case 10A and IOB, and conveyed to the central conveyor section 3 side by chain conveyors 12A and 12B.

The granular material is then lifted onto the upper deck 15 by the packet conveyor 14, passed through the discharge port 16 to the chain conveyor 32, and then conveyed by the revolving conveyor 33.

As described above, according to the present invention, since the coal storage for securing fuel coal is formed in the wing space located above the side of the ship, void space can be used effectively, and the engine room can be supplied with This prevents the tank from becoming wider.

Furthermore, compared to the case where the cargo hold is used as a coal storage, the volume of the cargo hold is not reduced.

In addition, a coal supply tank communicating with the coal storage via an upper coal supply port was installed in the front part of the engine room, and a coal transport device for moving the coal to the position of the coal supply port was installed in the coal storage. Coal can be easily and reliably supplied from the coal storage to the coal supply tank by driving the coal transport device to move the coal in the coal storage to the coal supply port above the coal supply tank.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical side view of a ship, FIG. 2 is a vertical side view of the main part (cross-sectional view taken along line ■-■ in FIGS. 3 and 4), and FIG. is if in Figure 2
[-m sectional view, FIG. 4 is a sectional view taken along IV--■, FIG. 5 is a partially cutaway plan view of the main part, and FIG. 6 is a schematic perspective view of the main part. 1...Ship, 2A-2F...Ship, 3.
...Central conveyor section i 8A, 8B...
...Screw conveyor, 12A, 12B...
Chain conveyor, 13... Unloading device, 14...
... Packet conveyor, 15 ... Upper deck,
16...Discharge port, 17A-17F...
- Tsuchi, 18... Supply tank, 19... Engine room, 20... Coal storage, 23A, 23B...
... Coal input port, 25 ... Coal conveyance device, 3
4...Coal supply port.

Claims (1)

[Scope of utility model registration request] A wing space located above the side of the ship is used as a coal storage, and a coal supply tank communicating with the coal storage via an upper coal supply port is provided in the front part of the engine room, and coal is placed at the position of the coal supply port. A coal ship, characterized in that a coal transport device for moving the coal is provided in the coal storage.