JPH0338491A - Carrying vessel for industrial waste - Google Patents

Abstract

PURPOSE:To improve the navigation efficiency of a carrying vessel and improve its righting stability by providing a cargo hold for holding cargoes of industrial waste or the like as they are, a hold material transfer means, and a means to mix and discharge material taken by it with brine. CONSTITUTION:Cargoes of industrial waste are mounted in a cargo hold as they are, and they are carried to the sea where they are to be disposed. In disposing them, a drain pipe 24 is fixed vertically, a water pump of a brine supplying means 7 is started to supply brine to a mixing tank 6, and a transfer means 3 is started to charge the industrial waste or the like in the cargo hold, while a feed pump is started to actuate a feed means 8. Brine is filled to a constant level in the mixing tank 6 generating turning circuits, and it is jetted from an upper part like shower, so the industrical waste or the like is mixed with brine effectively, and obtained fluid is discharged from the drain pipe 24 through the feed means 8 to a predetermined depth in the sea continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transport ship for industrial waste, etc., which is used for transporting and dumping industrial waste into the ocean.

(Conventional technology) A large amount of industrial waste is generated in secondary industries, etc.
Measures to dispose of industrial waste include loading it onto a ship, transporting it to a designated sea area, and dumping it into the sea.

However, the ships used for this purpose were designed to carry industrial waste liquefied with seawater or the like.

(Problem to be solved by the invention) In conventional ships, seawater mixed with industrial waste forms part of the cargo, so the ability to transport industrial waste is reduced by the amount of seawater mixed. However, there were problems with operational efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ship for transporting industrial waste, etc., which can solve the above-mentioned problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention forms a cargo hold for unloading industrial waste etc. in the hull of a ship, and also provides a cargo hold for carrying out the cargo in the hold to the outside. The present invention is characterized in that a transport means is provided, and a mixing and discharging device is provided which mixes the cargo continuously sent out by the transport means with seawater at a dumping site and continuously discharges the cargo to a predetermined depth in the sea.

The mixing and discharging device is composed of a mixing tank into which cargo is input, a seawater supply device for supplying seawater into the tank, and a delivery device for discharging the cargo mixed with seawater in the tank into the sea. You can force it.

(Function) The carrier ship of the present invention carries cargo such as industrial waste into the cargo hold.
#! iThe cargo hold is used to transport loaded cargo to a dumping site, where it is mixed with seawater and discharged into the sea. This will completely eliminate the waste of the previous method where seawater was part of the cargo.

(Example) Hereinafter, specific examples of the present invention will be described in detail based on the drawings.

FIG. 1 is a side view of the carrier ship according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view explanatory view showing the main parts of the mixing and discharging device.
FIG. 4 is a sectional plan view showing the mixing tank of the discharge device.

In the figure, 1 is a cargo hold designed to unload cargo such as industrial waste, the bottom of which is shaped like a hopper, and the cargo is discharged from multiple locations at the bottom via air slides 1a. Openings 2 are provided, and each of the openings 2 is provided with a closing device (not shown).

Reference numeral 3 denotes a transport means for transporting the cargo in the cargo hold to a certain location outside the building. Specifically, it consists of a transport device 4.5 installed directly below the opening 2, and is discharged from the opening 2. The loaded cargo is transported to a mixing tank, which will be described later.

E is a mixing/discharging device that mixes the cargo continuously sent out by the transfer means 3 with seawater and continuously discharges the mixture to a predetermined depth in the sea from a mixing tank 6, a seawater supply device 7, and a delivery device 8. Become.

As shown in FIGS. 3 and 4, the mixing tank 6 has a cylindrical volume 'j'i9 with a conical upper and lower part as its main body,
An opening 9a is formed at the top of the container 9 through which the cargo is introduced by the transfer means 3, and an outlet 9b is formed at the bottom of the container 9 for discharging the cargo mixed with seawater in the container 9.
A mixed flow plate 10 made of a plate member is provided protrudingly at an appropriate location on the inner circumferential surface, and the mixed flow plate 10 promotes mixing of the cargo and the seawater supplied from the seawater supply device 7. In addition, an appropriate air bleed/overflow pipe device 11 is provided. The air bleed and overflow pipe device If here communicates the standpipe 13 with an opening 12 penetrated from the bottom B to the outside of the ship, and releases the tip of the pipe 13 to the atmosphere at an appropriate height position, and The tip of another tube 14 branched from the middle of the cylindrical container 9 is communicated with the internal space of the cylindrical container 9 at a relatively upper position.

The seawater supply device 7 is for supplying seawater into the mixing tank 6. Specifically, a seawater inlet 15 is provided on the bottom B of the ship, and the internal space of the mixing tank 6 is connected to a water pipe 16 and a water pump 17. The seawater discharge side of the water supply pipe 16 is connected to the water pipe 16 through other appropriate stop valves 18 and 19, and the seawater discharge side of the water pipe 16 is connected to the
As shown in the figure, it is branched into two parts 16a and 16b so that each seawater discharge direction fl is along the inner peripheral surface of the cylindrical container 9. Preferably, a branch pipe 16c is branched from the middle of the water pipe 16, and the seawater discharge side of the pipe 16c is opened at a plurality of locations relatively above the mixing tank 6, and seawater is spouted out in a shower form from the openings. Do it like this.

The delivery device 8 is for discharging the cargo mixed with seawater in the mixing tank 6 into the sea, and is specifically configured as follows.

A delivery pipe 20 is extended from the discharge port 9b of the cylindrical container 9 to, for example, near the center of the hull, and a delivery pump 21 and necessary stop valves 22 and check valves 23 are provided in the middle of the pipe 20, and For example, as shown in FIGS. 1 and 2, a discharge pipe 24 of approximately 20 m to 30 m is connected to the tip of the pipe 20 via a rubber joint 25, and can be freely swung around the rubber joint 25. On the other hand, two davits 26 and 26 are set up at appropriate positions on the deck U, and the discharge pipe 24 is connected to a horizontal storage position and a vertical discharge position via a rope 28 extending from these davits 26 and 26 so as to be able to be wound freely. You can freely switch between the two.

Next, an example of the use of the carrier according to the present invention will be described. At a loading port, cargo such as industrial waste is loaded into a cargo hold, and then transported directly to the ocean where it will be dumped. conduct.

The fact that the cargo at this time is unloaded industrial waste, etc. is because the conventional cargo, which was a mixture of industrial waste and seawater, has a fluidity similar to that of a liquid, and the appearance of the ship's hull is good. This eliminates the problem of raising the center of gravity, which impairs its stability.

Therefore, when discarding the cargo, the discharge pipe 24 is first fixed vertically via the rope 28, and then the water pump 17 of the seawater supply device 7 is started to supply seawater into the mixing tank 6 and the transfer means. 3 is also started to charge industrial waste and the like in the cargo hold 1 into the same tank 9, and at the same time, the delivery pump 21 is started to put the delivery device 8 into operation.

As a result, the mixing tank 6 is filled with seawater up to a certain water level, creating a swirling flow state and being sprayed from above in the form of a shower, allowing industrial waste to be effectively mixed with the seawater, while also creating a phase flow. The mixing is promoted by the plate IO, and the fluid such as industrial waste thus generated is sent to a certain depth in the sea via the delivery device 8.
For example, the water is continuously discharged to a depth of 20 m.

After discarding the cargo, it is cleaned by supplying clean seawater into the mixing and discharging device E to prepare for the next use.

(Effects of the Invention) According to the present invention, when transporting cargo such as industrial waste, it is loaded in a cargo hold in an enemy state.
This dramatically improves operational efficiency by avoiding excess seawater from forming part of the cargo, as was the case in the past. This improves the stability of the ship's righting by eliminating the free liquid surface caused by

[Brief explanation of drawings]

FIG. 1 is a side view of the carrier ship according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view explanatory view showing the main parts of the mixing and discharging device.
FIG. 4 is a cross-sectional plan view taken along line X-X showing the mixing tank of the discharge device. DESCRIPTION OF SYMBOLS 1... Cargo hold, 3... Transfer means, E... Mixing discharge device, 6... Mixing tank, 7... Seawater supply device, 8
...Sending device.

Claims (1)

[Claims] (1) A cargo hold for unloading industrial waste, etc. as is, a transfer means for quantitatively extracting the materials in the cargo hold, and a mixed discharge for disposing of the materials extracted by the transfer means into the sea while mixing them with seawater. A ship for transporting industrial waste, etc., characterized by a configuration equipped with means.