JPS629196Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is used to load slurry cargo handling barges, more specifically, to load cargo such as coal sent in the form of slurry from land onto a transport ship, and to transport cargo transported by ship. This invention relates to a slurry loading barge used for slurrying and unloading.

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. Also,
A similar problem exists when transporting particulate cargo other than coal by ship.

This invention was made in view of the above-mentioned circumstances, and aims to provide a slurry loading barge that can efficiently dewater slurry while loading it onto a ship and increase the efficiency of transporting cargo by ship. purpose.

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

FIG. 1 shows a coal slurry transport ship 1 and a slurry cargo handling barge 2, and the transport ship 1 is equipped with a large number of holds.

On the front upper deck 3 of the barge 2, trays 4 extending back and forth are provided on both left and right sides. Each tray 4
As shown in FIGS. 2 and 3, an outer plate 6 is attached to the hull via a large 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 provided on the upper part of the tray outer plate 6.
is fixed, and a large number of connecting rods 1 are attached to the rotating end of the inner plate 8.
A rotary rod 12 fixed through the guide hole 9 is movably fitted into the guide hole 9. The rotary 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 barge 2,
In order to receive slurry water, inclined plates 13 extending obliquely downward toward the center of the ship are provided from the upper deck 3 on both sides, and between slurry water drain grooves 14 provided at the lower ends of each inclined plate 13. Horizontal board 1
5 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 which is made up of a large number of vertical members 17 extending vertically in parallel with the horizontal members 17 and horizontal members 18 connecting these vertical members 17. 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 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, there is a slurry water tank 22 for storing slurry water after deashing.
is provided.

On the barge 2, on the horizontal plate 15 below the dewatering screens 16 on both sides, there is a wire mesh belt conveyor 23 that receives dehydrated granular coal (granular solids) falling from the dewatering screens 16 and conveys it to the center of the hull. It is provided. At the end of this conveyor 23, as shown in FIG. 5, there is a hopper 2 for separating slurry water.
4 is provided, and a drain pipe 26 is connected to the lower inclined wall of the hopper 24 via a drain filter 25. Granulated coal discharge chute 27 at the bottom of the hopper 24
is the bucket conveyor 2 installed in the center of the ship.
The upper unloading 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 barge 2, a belt conveyor 31 extending back and forth is connected to a bucket conveyor 28.
A mobile loader 3 is provided at the front and rear of each belt conveyor 31 and is movable back and forth with respect to each belt conveyor 31.
2 is provided. As shown in FIG. 6, each belt conveyor 31 has an upper branch 33 in the middle.
is provided, and a loader 32 is disposed below the tip of this branch portion 33. Then, as the loader 32 moves back and forth, the branch portion 3 of the belt conveyor 31
3 also moves back and forth.

A granulation pipe 34 is provided on the rear upper deck 3 of the barge 2, and a granulation material dewatering device 3 is provided at the end of this granulation pipe 34.
5 is provided. As shown in FIG. 7, the starting end of the granulation pipe 34 is connected to a water supply pipe 38 of a water supply device 37 equipped with a pump 36 and the like for supplying slurry water that has passed through the dewatering screen 16. Further, an oil addition nozzle 39 is provided near the starting end of the granulation tube 34, and a stirring blade 40 is provided inside the granulation tube 34 (see FIG. 8). Granule dehydration device 3
5 includes a box-shaped slurry water storage tank 41, a granulated material storage tank 42 disposed at one end thereof, and a granulated material container 43 that is floated on slurry water in the storage tank 41 and moves in a circulating manner. , on the side wall of each container 43,
A wire mesh (not shown) for dewatering is provided above the water surface. Although not shown, in the center of the hull of the barge 2, there is a container for transporting the dehydrated granulated coal discharged from the granule storage tank 42 of the dehydrator 35 to the belt conveyor 31 on the upper deck 3. A similar bucket conveyor is provided.

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

First, as shown in FIG. 1, the transport ship 1 is placed next to the belt conveyor 31 side of the barge 2, and the floating hose 44 for slurry feeding is connected to each tray 4.
At the same time, a floating hose 45 for returning slurry water is connected to the slurry water tank 22 of the barge 2. Note that these floating hoses 44 and 45 are connected to land facilities via, for example, a single point mooring buoy. The coal slurry sent from the land facility through the hose 44 is flowed along the entire length of the tray 4 with the tray inner plate 8 closed, as shown by 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 that has been separated from the pulverized coal and dehydrated in this way is
Due to the vibration of the dewatering screen 16, it falls along the wire mesh 20 onto the wire mesh belt conveyor 23, is further dehydrated by the wire mesh of the conveyor 23, is transported to the center of the ship, is thrown into the hopper 24, and is further dehydrated by the filter 25. is loaded into the loading section 29 of the bucket conveyor 28, conveyed to the upper deck 3 by the bucket conveyor 28, discharged onto the belt conveyor 31, and further transferred to the conveyor 3.
The transport ship 1 passes through the loader 32 from the branch part 33 of 1.
It is thrown into the hold from the hatch 46. and,
By appropriately moving the loader 32 back and forth, granular coal is loaded into each hold of the transport 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 It is temporarily stored together with water at an appropriate location within the hull, and is sent to the starting end of the granulation pipe 34 by a water supply device 37. A binder made of oil such as heavy oil is added to the slurry water sent to the granulation pipe 34 from a nozzle 39, and while the slurry water is sent to the end of the granulation pipe 34, they are mixed by a stirring blade 40. Pulverized coal in the slurry water is granulated by stirring.
Generally, coal and oil have an affinity for each other, so a binder made of oil adheres to the surface of pulverized coal, and further, pulverized coal adheres to this binder and is gradually granulated.
Coal granules with large particle sizes are obtained. The granules thus obtained are put into a slurry water tank from the end of the granulation tube 34 into the container 43 of the dehydrator 35, and are dehydrated to some extent while the container 43 moves to the granules storage tank 42. The granulated material storage tank 42 is removed by an appropriate means such as turning the container 43 upside down.
It is put inside. The granulated material placed in the storage tank 42 is further dehydrated, and as described above, is conveyed by a bucket conveyor to the belt conveyor 31 on the upper deck 3, and is placed into the hold of the transport ship 1 together with the granulated coal. The slurry water accumulated in the slurry water storage tank 41 of the dewatering device 35 contains ash, but the ash settles to the bottom of the storage tank 41, and only the slurry water from which the ash has been separated can be purified by appropriate means. The water is guided to the tank 22 and then returned to the land facility via the hose 45. The ash precipitated in the slurry water storage tank 41 is separated from the slurry water by appropriate means, loaded onto a barge, etc., and returned to land.

In addition, contrary to the above, the belt conveyor 31 side of the barge 2 is moored to the quay, and the powdered coal that has been dehydrated to some extent and sent by the transport ship is re-slurried and the tray 4 of the barge 2 is berthed. It is also possible to send the water to a container and unload it from the loader 32 while dewatering it.

The structure and arrangement of the tray 4, dewatering screen 16, belt conveyor 23, bucket conveyor 28, belt conveyor 31, loader 32, granulated material dewatering device 35, etc. are not limited to those of the above embodiment, and can be modified as appropriate. For example, bucket conveyor 28
may be placed at the front or rear of the barge 2.
In this way, only one belt conveyor 31 and one loader 32 on the upper deck 3 are required. In addition, a granulated material dewatering device equipped with a tray 4, a dewatering screen 16, etc. is separately provided at the rear of the barge 2, and the terminal end of the granulating pipe 34 is connected to the starting end of this tray 4,
Thereby, the slurry-like granules may be dehydrated, and the slurry water separated from the granules by the dewatering screen 16 or the like may be led to the slurry water tank 22. Furthermore, this invention can be applied to slurry of powder cargo other than coal.

As described above, the slurry cargo handling barge according to this invention has a tray 4 disposed near the upper deck 3 in order to flow and discharge the sent slurry.
and an inclined dewatering screen 16 disposed below the tray 4 to dehydrate the slurry discharged from the tray 4 and separate granular solids having a relatively large particle size, and a slanted dehydration screen 16 that transports the granular solids after dewatering. A belt conveyor 23 is provided below the dewatering screen 16 for this purpose, and a bucket conveyor 28 conveys the granular solids from the end of this conveyor 23 onto the upper deck 3.
, 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 31.
A mobile loader 32 is installed on the upper deck 3 so as to be movable back and forth in order to receive granular solids from the ship and carry them out of the ship, and a structure having an oil addition nozzle 39 near the starting end and a stirring blade 40 inside. grain tube 34
, a water supply device 37 that sends the slurry water that has passed through the dewatering screen 16 to the starting end of the granulating pipe 34 , a granulated material dehydrating device 35 that dehydrates the granulated material discharged from the terminal end of the granulating pipe 34 , and Since it is equipped with a bucket conveyor that conveys the granulated material discharged from the device 35 to the belt conveyor 31 on the upper deck 3,
The slurry can be moved to the required port and loaded onto a transport ship while being dehydrated, increasing the efficiency of transporting cargo by ship. Furthermore, since the fine powder solids in the slurry are granulated and then separated from water, dewatering is easy, and the granulation is efficient because the slurry is granulated while being loaded onto a ship. And tray 4
The side plate 8 of the dehydration screen 1 can be opened and closed freely.
Since the horizontal cross section of 6 has a wave shape, as follows,
This has the 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 and efficiently dehydrated.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is an overall perspective view, Fig. 2 is a cross-sectional view of the barge, Fig. 3 is an enlarged perspective view of the tray, and Fig. 4 is a cross-sectional view of the line shown in Fig. 2. An enlarged sectional view, Fig. 5 is an enlarged perspective view of the belt conveyor and bucket conveyor, Fig. 6 is an enlarged side view of the belt conveyor on the upper deck, and Fig. 7 is an enlarged perspective view of the granulation pipe and granulate dewatering device. 8 are partially enlarged sectional views of the granulation tube. 2... Slurry cargo handling barge, 3... Upper deck, 4
... Tray, 8 ... Side plate, 16 ... Dewatering screen, 23 ... Belt conveyor, 28 ... Bucket conveyor, 31 ... Belt conveyor, 32 ... Loader, 34 ... Granulation tube, 35 ... Granular material dewatering device, 37... Water supply device, 39... Oil addition nozzle, 40... Stirring blade.

Claims (1)

[Scope of utility model registration request] A tray 4 is placed near the upper deck 3 to transport and discharge the slurry that has been sent, and a tray 4 is placed to dehydrate the slurry discharged from the tray 4 to separate granular solids having a relatively large particle size. An inclined dewatering screen 16 arranged below the tray 4
and a belt conveyor 2 provided below the dewatering screen 16 to convey the granular solids after dewatering.
3, a bucket conveyor 28 for conveying granular solids from the terminal end of this conveyor 23 onto the upper deck 3, and a bucket conveyor 28 provided in the front-rear direction on the upper deck 3 for conveying the granular solids discharged from the bucket conveyor 28. a belt conveyor 31, and an upper deck 3 for receiving granular solids from the conveyor 31 and transporting them overboard.
A mobile loader 32 is provided above so as to be movable back and forth.
, a granulation pipe 34 having an oil addition nozzle 39 near the starting end and a stirring blade 40 inside, a water supply device 37 that sends slurry water that has passed through the dehydration screen 16 to the starting end of the granulation pipe 34 , and a granulating pipe 34 . A granule dewatering device 35 dehydrates the granules discharged from the starting end of the pipe 34, and a bucket conveyor conveys the granules discharged from the dewatering device 35 to the belt conveyor 31 on the upper deck 3. The side plate 8 of the tray 4 can be opened and closed, and a dehydration screen 16 is provided.
A slurry cargo handling barge with a wave-shaped horizontal cross section.