JPS629197Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a slurry transport ship, and more specifically, to a transport ship that transports powdered cargo such as slurryized coal.

In recent years, coal mines have been gradually moving to inland areas, and as a result, it has become extremely disadvantageous in terms of transportation costs to transport coal in its original form overland from coal producing areas to shipping ports. Therefore, in order to reduce transportation costs, water is added to slurry of coal that has been pulverized to a particle size below a certain level in coal producing areas, and this coal slurry is transported by land via pipeline to a shipping port, and then loaded directly onto a transport ship. It is possible to transport the slurry by sea to the unloading port while dewatering the slurry during the voyage. When transporting coal slurry by pipeline, it is necessary to mix small-sized pulverized coal into the slurry in order to reduce the transport power and reduce transport costs, but such slurry cannot be loaded directly onto a transport ship. It is difficult to dewater the coal if it is mixed in with the coal, and a large amount of water must be loaded onto the transport ship, reducing the transport efficiency of the coal. Similar problems also occur when transporting powdered cargo other than coal by ship.

This idea was made in view of the above-mentioned circumstances, and the purpose is to provide a slurry transport ship that can efficiently dewater slurry while loading it onto a ship, thereby increasing the efficiency of transporting cargo by ship. do.

This invention will be explained below with reference to drawings showing embodiments.

FIG. 1 shows a coal slurry transport ship 1, and the ship 1 is equipped with a number of holds.

The ship 1 is provided with trays 4 on both left and right sides below the upper deck 3 of the bow section and extending forward and backward. As shown in FIGS. 2 and 3, each tray 4 includes an outer plate 6 attached to the hull via a number of vibration springs 5, and a bottom plate 7 integrally formed at the lower end of the outer plate 6. and an inner plate 8 rotatably attached to the inner end of the bottom plate 7 in a watertight manner. A guide plate 10 having an arc-shaped guide hole 9 is fixed to the upper part of the tray outer plate 6, and a rotating rod 12 fixed to the rotating end of the inner plate 8 via a number of connecting rods 11 is connected to the guide hole. 9 is movably fitted. This rotating rod 12
is connected to the rod end of a hydraulic cylinder (not shown) for opening and closing the tray inner plate provided at an appropriate location on the hull. Further, the starting end and the ending end of the tray 4 are closed. Below the trays 4 on both sides of the ship 1,
In order to receive slurry water, inclined plates 13 extending diagonally downward from the outside of the tray 4 toward the center of the hull are provided, and horizontally between slurry water drain grooves 14 provided at the lower end of each inclined plate 13. Board 15
is provided. Further, below the trays 4 on both sides, dewatering screens 16 are provided along the inclined plates 13, respectively. Each dewatering screen 16
As shown in FIGS. 2 and 4, the inclined plate 13
A wire mesh 20 is stretched over a holding frame 19 that is made up of a large number of vertical members 17 extending vertically in parallel with the horizontal members 18 connecting these vertical members 17, and in order to increase the surface area, The horizontal cross section forms a triangular wave shape. The holding frame 19 of the dewatering screen 16 is attached to the inclined plate 13 via a large number of vibration springs 21, and vibrators (not shown) are provided at appropriate locations on the dewatering screen 16 and the tray 4. Further, below the inclined plate 13 and the upper deck 3, a slurry water tank 22 is provided to store the slurry water that has passed through the dewatering screen 16.

The ship 1 is provided with a wire mesh belt conveyor 23 on the horizontal plate 15 below the dewatering screens 16 on both sides, which receives dehydrated granular coal (granular solids) falling from the dewatering screens 16 and conveys it rearward. There is. As shown in FIG. 5, a hopper 24 for separating slurry water is provided at the end of the conveyor 23, and a drain pipe 26 is connected to the lower inclined wall of the hopper 24 via a drain filter 25. . The granulated coal discharge chute 27 at the bottom of the hopper 24 is connected to the lower loading section 29 of the bucket conveyor 28.
The upper discharge section 30 of the bucket conveyor 28 is located above the upper deck 3 on one side of the ship.

On the upper deck 3 of one side of the ship 1, a belt conveyor 31 extending back and forth is provided behind the bucket conveyor 28.
A mobile loader 32 is provided that can freely move back and forth. As shown in FIG. 6, each belt conveyor 31 is provided with an upper branch part 33 in the middle thereof, and a loader 32 is disposed below the tip of this branch part 33. As the loader 32 moves back and forth, the branch portion 33 of the belt conveyor 31 also moves back and forth.

In the above, loading of coal slurry onto the transport ship 1 is carried out as follows.

First, as shown in FIG. 1, a floating hose 44 for feeding slurry is connected to the starting end of each tray 4, and a floating hose 45 for returning slurry water is connected to the slurry water tank 22 of the ship 1. In addition, these floating hoses 4
4 and 45 are connected to land facilities via, for example, a single point mooring buoy. Hose 44 from land facility
The coal slurry sent through the tray is flowed along the entire length of the tray 4 with the tray inner plate 8 closed as shown in solid lines in FIGS. 2 and 3. Once the tray 4 is filled with slurry in this way, the tray inner plate 8 is opened as shown by the chain lines in FIGS. 2 and 3, and the slurry is uniformly discharged onto the dewatering screen 16. The tray inner plate 8 is closed again, and the slurry is collected in the tray 4.
The slurry discharged onto the dehydration screen 16 contains granular coal with a relatively large particle size and pulverized coal with a relatively small particle size, and the slurry water containing the pulverized coal passes through the wire mesh 20 of the dehydration screen 16. The granulated charcoal remains on the wire gauze 20. The granular coal, which has been separated from the pulverized coal and dehydrated in this way, falls along the wire mesh 20 onto the wire mesh belt conveyor 23 due to the vibration of the dehydration screen 16, and is further dehydrated by the wire mesh of the conveyor 23 and conveyed backward. The water is put into the hopper 24, further dehydrated by the filter 25, and transferred to the loading section 2 of the bucket conveyor 28.
9, is conveyed above the upper deck 3 by the bucket conveyor 28 and discharged onto the belt conveyor 31, and then is fed from the branch 33 of the conveyor 31 through the loader 32 and into the hold from the hatch 46. Then, by appropriately moving the loader 32 back and forth, granular coal is loaded into each hold of the ship 1 one after another. On the other hand, the slurry water that has passed through the dewatering screen 16 flows down into the drain groove 14 along the inclined plate 13, and the slurry water flowing down from the wire mesh belt conveyor 23 into the drain groove 14 and the slurry separated into the drain pipe 26 of the hopper 24 The slurry water is led together with water to a slurry water tank 22 by an appropriate means, and is further led to a hose 4.
5 and returned to the shore facility.

The configuration and arrangement of the tray 4, dewatering screen 16, belt conveyor 23, bucket conveyor 28, belt conveyor 31, loader 32, etc. are not limited to those in the above embodiment, but can be modified as appropriate.
Furthermore, this invention can be applied to slurry of powder cargo other than coal.

As described above, the slurry transport ship according to this invention has a tray 4 arranged near the upper deck 3 at the end of the hull to transport and discharge the sent slurry, and a tray 4 for discharging the slurry from the tray 4. An inclined dewatering screen 16 is disposed below the tray 4 to dehydrate the slurry and separate granular solids having a relatively large particle size. A belt conveyor 23 provided, a bucket conveyor 28 for conveying the granular solids from the end of the conveyor 23 onto the upper deck 3, and a bucket conveyor 28 for conveying the granular solids discharged from the bucket conveyor 28 onto the upper deck 3. Since it is equipped with a belt conveyor 31 provided in the front-back direction and a mobile loader 32 provided on the upper deck 3 so as to be movable back and forth in order to receive granular solids from the conveyor 31 and introduce them into the hold, By simply putting slurry into a tray at the end of the ship, it can be dehydrated and loaded into the hold, increasing the efficiency of cargo transportation by ship. The side plate 8 of the tray 4 can be opened and closed freely, and the dehydration screen 16
Since the horizontal cross section of the slurry has a wave shape, it has the following effect of efficiently dewatering a large amount of slurry. In other words, since the side plate of the tray can be opened and closed, a large amount of slurry can flow into the tray with the side plate closed, and then it can be discharged evenly onto the inclined screen by opening the side plate. . Further, since the horizontal cross section of the inclined dewatering screen has a wave shape, the strength is increased and the dewatering area becomes large. Furthermore, by making the screen wave-shaped, a large number of grooves are formed on the top surface of the screen, which facilitates movement of the slurry due to gravity. Therefore, a large amount of slurry can be discharged from the tray onto the screen at one time for efficient dewatering.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and Fig. 1 is a perspective view of the whole, Fig. 2 is a cross-sectional view of the ship, Fig. 3 is an enlarged perspective view of the tray, Fig. 4 is an enlarged cross-sectional view of the line in Fig. 2, Fig. 5 is an enlarged perspective view of the belt conveyor and bucket conveyor, and Fig. 6 is an enlarged side view of the belt conveyor on the upper deck. 1... slurry transport ship, 3... upper deck, 4...
Tray, 8...side plate, 16...dewatering screen,
23...belt conveyor, 28...bucket conveyor, 31...belt conveyor, 32...loader.

Claims (1)

[Scope of utility model registration request] A tray 4 is placed near the upper deck 3 at the end of the hull to transport and discharge the slurry that has been sent, and the slurry discharged from the tray 4 is dehydrated to form granular solids with a relatively large particle size. a belt conveyor 23 provided below the dewatering screen 16 to convey the granular solids after dewatering, and a terminal end of the conveyor 23. A bucket conveyor 2 conveys granular solids from the top deck 3 to the upper deck 3.
8, a belt conveyor 31 provided in the front-rear direction on the upper deck 3 to convey the granular solids discharged from the bucket conveyor 28, and this conveyor 3.
A mobile loader 32 is provided on the upper deck 3 so as to be able to move back and forth in order to receive granular solids from the tray 1 and load them into the hold.The side plate 8 of the tray 4 can be opened and closed, A slurry transport ship with a wave-shaped horizontal cross section.