JPH0327435B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an earth-unloading ship for discharging earth and sand carried by earth-carrying ships.

Conventional technology Conventional soil transport vessels are of the bottom-opening type, and the bottom door opens downward during soil removal.In shallow water, the bottom door does not open sufficiently, which hinders soil removal. Since it is not possible to remove and spread the earth and sand to an even thickness on the seabed surface, in order to eliminate these drawbacks, a deck earth transport vessel B with earth side removal type as shown in Fig. 4 is used.
has come to be used.

The deck earth transport vessel B (hereinafter simply referred to as the deck earth transport vessel) has a scraper S in the center that moves in the shipboard direction using a hydraulic system, and a dump plate D that is tiltably attached to the shipside end. By lowering the dump plate D and pushing out the scraper S, the earth and sand M on the deck is released from the side.

However, if the earth and sand on the deck cargo transport vessel B is to be transported to another ship or land without being discharged, it is necessary to use a grab bucket, bucket wheel, or gantry crane installed on the ship or land. Unloading equipment must be used, and these unloading equipment are large and heavy;
Not only are the installation conditions severely restricted, but the unloading work is intermittent and lacks continuity, and furthermore, when an earth-lifting vessel equipped with these unloading equipment is carried alongside a deck-loading vessel for unloading, the earth and sand cannot be removed. As the removal of soil progresses, it is necessary to move the soil transport vessel, which has the disadvantage of complicating the mooring operation and making the removal work in stormy weather extremely difficult.

Problems to be Solved by the Invention Therefore, the present invention aims to continuously perform the work of lifting and carrying out soil from a deck cargo transport vessel using simple equipment, and also eliminates the need for mooring operations.

Means for Solving the Problems The present invention provides a notch in the center of the stern of an earth-lifting ship for pulling in and mooring a deck-loaded earth transporter, and has earth and earth discharged from the side of the deck-loading ship on both sides. A relay conveyor is installed to convey the sediment flowing down from the hopper to a merging hopper on the ship, and a merging conveyor is installed to convey the earth and sand flowing down from the merging hopper to a discharge conveyor for carrying it out of the ship. be.

Function: Therefore, the earth and sand pushed out from both sides of a deck cargo transport vessel passes through each hopper, collects in the merging hopper, and is then continuously carried out overboard by a delivery conveyor. .

Embodiment An embodiment of the present invention will be explained with reference to FIGS. 1 to 3. FIG. 1 is a side view of the earth-lifting vessel of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 2 is a schematic front cross-sectional view illustrating a state in which earth and sand pushed out from both sides of the ship are released onto the conveyor of the earth-lifting ship. As shown in FIG. 2, the earth-lifting ship 1 of the present invention A notch 2 is formed in the center for pulling in and mooring the deck cargo transport vessel B, and hoppers 3 and 3' are provided on both sides to guide and flow down the earth and sand M released from the deck cargo transport vessel B. , 3' are provided with a first conveyor 4 having an upward slope along the notch 2, respectively.
4' is provided, making it possible to extrude and release earth and sand from both sides over the entire length of the earth carrier B.

The earth and sand conveyed by the first conveyors 4, 4' pass through the relay conveyors 5, 5' and 6, 6', and then pass through the confluence hopper 7.
and flows down from the hopper 7 to the merging conveyor 8
It is delivered out of the ship via a delivery conveyor 9.

Effects of the Invention Since the present invention has the above-described configuration, the deck cargo transport ship enters the notch of the earth lifting ship and is moored, thereby eliminating the need for ship maneuvering even in stormy weather.
By increasing the stability of soil lifting work and pushing and releasing soil from the earth transport vessel to the earth lifting vessel, large equipment such as bucket wheels and grab buckets, which were required for conventional earth lifting vessels, are no longer required. Since the earth and sand are carried out by a conveyor, the removal work is carried out continuously, which significantly improves work efficiency, and the earth and sand from each hopper is removed and transported to the converging hopper before being carried out overboard by the conveyor. Therefore, compared to the case where the conveyor is directly discharged from the hopper and carried overboard, the uphill slope of the conveyor is reduced, there is no backflow of earth and sand on the conveyor, and a large amount of earth and sand can be carried out efficiently. By once consolidating the earth and sand carried in from each hopper, the conveyance path can be made into one, so it is possible to easily increase or decrease the amount of earth and sand carried out from the discharge conveyor, The earth-lifting ship of the present invention has the above-mentioned excellent effects when combined with a deck-loading ship.

[Brief explanation of the drawing]

Figures 1 to 3 show embodiments of the present invention; Figure 1 is a side view, Figure 2 is a plan view, Figure 3 is a schematic front cross-sectional view, and Figure 4 is a side-discharge type deck cargo transport ship. FIG. 1...Earth lifting ship, 2...Notch, 3...Hopper, 4, 4', 5, 5', 6, 6', 8, 9...Export conveyor, B...Earth side discharge type deck loading Earth carrier.

Claims (1)

[Claims] 1. Hoppers are provided on both sides of the hull with a notch formed in the center of the stern for pulling in and mooring a deck earth transport vessel with side-discharge type, and the earth and sand flowing down from each hopper are
An earth lifting ship equipped with a relay conveyor that transports earth and sand to a merging hopper on a ship, and a merging conveyor that transports earth and sand flowing down from the merging hopper to a discharge conveyor that carries it out of the ship.