JPH11115882A - Concrete plant ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably supply concrete with even quality even under bad weather, and moor a concrete plant ship on an optional spot with certainty. SOLUTION: A lower end of each spud 10 of this concrete plant ship is seated on a sea bottom in the vicinity of a quay 8. A barge 2 is thus fixed at a position higher than a water level. Concrete material in silos 12 to 14 of a material supplying ship 5 is supplied to a receiving hopper of the barge 2 by a belt conveyor 15. The material is then transferred to a measuring hopper 4 by a belt conveyor 7. Concrete mixing is thus performed in a concrete plant 3. The prepared concrete is stored in an agitator car 17 which is moved from the barge 2 to a ground through a ramp way 9. The concrete is thus transferred to an application spot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete plant ship, and more particularly to a self-elevating concrete plant ship capable of fixing a barge on which a concrete plant is mounted above a water surface using a spat.

[0002]

2. Description of the Related Art When constructing a concrete manufacturing plant in the case of placing concrete on an island or landfill away from land, a large construction site and enormous cost are required, and it is necessary to construct a new plant. After the installation is completed, the plant must be removed. Therefore, a concrete mixer ship having a concrete plant mounted on a barge has been conventionally used. Move the concrete mixer ship to a sea location close to the target location for placing concrete on land.Concrete produced at the plant is poured into the target location by belt conveyor, pumping, etc., or cast using an agitator truck. Convey concrete to destination.

[0003] By using such a concrete mixer ship, it becomes possible to cast concrete at a target location on land without constructing a new concrete manufacturing plant. Also, after concrete placement is complete,
All you have to do is move the concrete mixer ship and there is no need to remove the plant once it was built.

[0004]

However, since the conventional concrete mixer ship manufactures concrete at a plant on a barge floating on the sea, the plant shakes together with the barge during swelling and high stormy weather, and concrete material There is a problem that it is difficult to stably supply concrete of uniform quality due to the measurement error of the above. In a conventional concrete mixer ship, a winch is mounted on the barge, and the mooring of the barge is performed by using the mooring equipment on the quay and anchoring the anchor behind the barge. For this reason, when there is no mooring equipment on the quay, or when it is not possible to secure a large construction area where anchors can be anchored behind the barge, there is a problem that mooring of the barge becomes difficult. The present invention has been made to solve such a problem, and a concrete plant capable of stably supplying concrete of uniform quality even in stormy weather and capable of securely mooring anywhere. The purpose is to provide a ship.

[0005]

SUMMARY OF THE INVENTION A concrete plant ship according to the present invention includes a barge, a concrete plant mounted on the barge, and a plurality of spats provided on the barge so as to be able to move up and down. The concrete plant is operated with the barge fixed above the water surface by lowering the spat to land on the sea floor. In addition,
The concrete material may be supplied via a receiving hopper from a material supply boat moored near the barge, or may be supplied via a material transport means from a material yard located on land. Further, the produced concrete can be transported by an agitator vehicle by connecting the barge and the quay by a ramp way, or can be directly supplied to a casting site by a distributor. further,
A cooling plant for pre-cooling, a desalination device for producing fresh water from seawater, and a material stocker for containing concrete material can also be provided.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Embodiment 1 FIG. 1 to 3 show a concrete plant ship 1 according to Embodiment 1 of the present invention. Two series of concrete plants 3 are mounted in the center of the barge 2.
Each concrete plant 3 has a weighing hopper 4 and a mixer and a concrete supply unit (not shown). In addition, two receiving hoppers 6 for receiving concrete material from the material supply ship 5 are provided at the rear part of the barge 2 corresponding to each concrete plant 3 and the concrete material received by each receiving hopper 6 is provided. A belt conveyor 7 is provided for transporting to a corresponding weighing hopper 4 of the concrete plant 3. On the other hand, the quay 8 and the barge 2
A lampway 9 for communicating with the vehicle is provided rotatably.

Further, at the four corners of the barge 2, spats 10 are provided upright. Each spat 10 is a barge 2
Are vertically penetrated, and each is provided so as to be able to move up and down by a lifting mechanism 11. When each spat 10 is raised, the barge 2 floats on the sea surface and can be towed on the sea freely by a towing ship or the like. Meanwhile, each spat 1
0, the lower end of the boat 10 is settled on the seabed, and the spat 10 is further lowered with respect to the barge 2. When the barge 2 relatively rises with respect to the spat 10, the barge 2 rises relative to the spat 10, as shown in FIGS. The barge 2 can be fixed above the water surface as shown.

The operation of the concrete plant ship 1 according to the first embodiment will be described. First, each spat 10 is raised, the barge 2 is floated on the sea surface, towed on the sea by a towing ship or the like, and moved to the vicinity of the quay 8 close to the target location for placing concrete on land. Here, each spat 10 is lowered by the elevating mechanism 11 provided at the four corners of the barge 2, and the lower end of each spat 10 is landed on the seabed. Further, by lowering each spat 10 by the elevating mechanism 11, the barge 2 is relatively raised with respect to the spat 10, and the barge 2 is fixed above the water surface as shown in FIGS. . Thereby, even if there are swells and high waves on the sea, the barge 2 is securely fixed without shaking. Further, as shown in FIGS. 1 and 2, a rampway 9 provided at the front part of the barge 2 is rotated to
And the barge 2 are communicated.

Next, a material supply ship 5 is placed on the sea behind the barge 2.
And anchor the anchor to moor it. The material supply ship 5 has a coarse aggregate silo 12, a fine aggregate silo 13, and a cement silo 14, and has a material supply belt conveyor 15 that conveys the concrete material stored in these silos. After the material supply ship 5 is moored,
One end of the material supply belt conveyor 15 of the material supply ship 5 is connected to the receiving hopper 6 of the barge 2. In addition, the material is supplied to each silo of the material supply ship 5 via the material carrier 16.

At the time of concrete production, the material supply ship 5
The concrete material stored in each of the silos 12 to 14 is supplied to the receiving hopper 6 of the barge 2 by the material supply belt conveyor 15, and furthermore, the weighing hopper 4 of the concrete plant 3 is supplied by the belt conveyor 7 of the barge 2.
Transported to At this time, since the barge 2 is fixed above the water surface by the spat 10, it is hardly affected by swells and waves on the sea, and it is possible to perform measurement with the same accuracy as a plant on land even in stormy weather. it can. Therefore, it is possible to stably produce concrete of uniform quality.

The produced concrete is loaded on an agitator car 17 from a concrete supply unit (not shown) of the concrete plant 3, and the agitator car 17 crosses the rampway 9 from the barge 2 to the land, and moves to a place to be poured. .

Since the height position of the barge 2 on the water surface can be adjusted by the elevating mechanism 11, the angle of the ramp way 9 can be made constant regardless of the height of the quay 8. Further, if the barge 2 is floating on the sea surface as in the prior art, the angle of the rampway 9 changes according to the draft difference due to the change in the total weight on the barge 2. Is fixed above the sea surface,
The angle of the lampway 9 does not change even if the total weight above changes. Therefore, the agitator wheel 17 can run on the rampway 9 smoothly.

Since the barge 2 is fixed above the sea surface by four spats 10 which move in the vertical direction, it is necessary to use the mooring equipment of the quay 8 or anchor the anchor by anchoring the anchor. Absent. For this reason, there is little fear of contact with other ships and the like, and work can be performed even in a narrow construction area. Further, it is not necessary to mount a mooring winch on the barge 2.

Embodiment 2 FIG. 4 and 5 show a second embodiment.
1 shows a concrete plant ship 21 according to the first embodiment. The concrete plant ship 21 has a material supply belt conveyor 22 in the concrete plant ship 1 of the first embodiment shown in FIGS. The material supply belt conveyor 22 serves as a material conveying means for conveying the concrete material from the material yard 23 installed on the quay 8 to the weighing hopper 4 of the concrete plant 3.
In the second embodiment, the material supply ship 5 is not used,
The supply of the concrete material to the concrete plant 3 is performed from the land material yard 23.

That is, the lower end of the spat 10 is settled on the seabed near the quay 8, the barge 2 is fixed above the water surface, the rampway 9 connects the quay 8 and the barge 2, and The leading end of the supply belt conveyor 22 is connected to a material yard 23 on the quay 8. The concrete material stored in the material yard 23 is transferred to the weighing hopper 4 of the concrete plant 3 of the barge 2 by the material supply belt conveyor 22.
The concrete is transported to the sea and is not affected by swells and waves on the sea, and concrete of uniform quality is produced stably.
The produced concrete is loaded on the agitator wheel 17, and the agitator wheel 17 crosses the rampway 9 from the barge 2 to the land and moves to the destination for casting.

As described above, if the material yard 23 can be installed on the quay 8, or on the quay 8 where the material yard 23 is previously installed, the material supply ship 5 and the material transport ship 1
The material can be supplied to the concrete plant 3 of the barge 2 without using the barge 6, and work can be performed even in a narrow construction area.

Embodiment 3 6 to 8 show a concrete plant ship 31 according to the third embodiment. This concrete plant ship 31 has a structure similar to that of the first embodiment shown in FIGS.
In the concrete plant ship 1, a distributor 32 for placing concrete is provided in front of the barge 2. For example, if the target location 33 is located in a place with a large depth of water, such as offshore, concrete cannot be transported by the agitator truck 17, and the concrete 32 can be transported to the target location 33 using the distributor 32 provided on the barge 2. It is desirable to cast directly.

That is, the lower end of the spat 10 is settled on the seabed near the casting point 33, the barge 2 is fixed above the water surface, and the tip of the distributor 32 is directed to the casting point 33. Further, the material supply ship 5 is moored on the sea behind the barge 2, and the tip of the material supply belt conveyor 15 of the material supply ship 5 is connected to the receiving hopper 6 of the barge 2. The concrete material stored in each of the silos 12 to 14 of the material supply ship 5 is supplied to the receiving hopper 6 of the barge 2 by the material supply belt conveyor 15, and further, the concrete plant 3 is conveyed by the belt conveyor 7 of the barge 2.
Is transported to the weighing hopper 4 and concrete of uniform quality is stably manufactured without being affected by undulations and waves on the sea. The produced concrete is poured into the destination 33 via the distributor 32.

As described above, the provision of the distributor 32 on the barge 2 allows the concrete produced in the concrete plant 3 to be directly poured into the target location 33.

Embodiment 4 FIG. 9 shows a concrete plant ship 41 according to the fourth embodiment. This concrete plant ship 41 has a cooling plant 42 for pre-cooling provided adjacent to the concrete plant 3 in the concrete plant ship 1 of the first embodiment shown in FIGS. As the cooling plant 42, a device for cooling materials such as coarse aggregate, fine aggregate and cement, a device for cooling mixing water, a device for producing ice used in place of mixing water, and concrete during mixing are used. Cooling equipment,
Any device such as a device for cooling manufactured concrete can be used. In addition, as a cooling method, cold water,
Various methods using cold air, a refrigerator, an ice machine, liquid nitrogen, dry ice, and the like can be used.

By providing such a cooling plant 42, it becomes possible to stably produce and supply high-quality concrete corresponding to mass concrete and hot concrete.

Embodiment 5 FIG. 10 shows a concrete plant ship 51 according to the fifth embodiment. This concrete plant ship 51 has a desalination device 52 provided on the barge 2 in the concrete plant ship 1 of the first embodiment shown in FIGS. The desalination device 52 is a device that takes in seawater and generates freshwater (mixed water) used for concrete production from the seawater.

By providing such a desalination apparatus 52, fresh water can be generated using seawater abundantly present around the barge 2, and fresh water can be supplied to the concrete plant 3 from the material supply ship 5 or from land. No need to supply.

Embodiment 6 FIG. FIG. 11 shows a concrete plant ship 61 according to the sixth embodiment. The concrete plant ship 61 is different from the concrete plant ship 1 according to the first embodiment shown in FIGS. 1 to 3 in that a material stocker 62 for containing a concrete material is provided on a barge 2 and the concrete material in the material stocker 62 is removed. This is provided with a material supply belt conveyor 63 that conveys the material to the weighing hopper 4 of the concrete plant 3.

By providing such a material stocker 62 on the barge 2, concrete can be manufactured without supplying concrete material to the concrete plant 3 from the material supply ship 5 or from land. Therefore,
Even if it is not possible to secure a construction area large enough to moor the material supply ship 5 or if there is no facility such as a material yard on the quay 8, concrete is produced in an amount corresponding to the material capacity of the material stocker 62. It becomes possible.

In the concrete plant ship according to each of the above-described embodiments, since two lines of concrete plants 3 are mounted on the barge 2, any one of the concrete plants 3 is installed in accordance with the required concrete supply amount. Concrete plant 3 or both concrete plants 3
Can be operated. The number of concrete plants 3 is not limited to two, and one or three or more concrete plants may be mounted.

In the embodiments 4 to 6 shown in FIGS. 9 to 11, the barge 2 and the quay 8 are connected by a ramp way 9, and the concrete is transported to the casting site by an agitator car. Although illustrated, a distributor may be provided as in the third embodiment, and concrete may be directly poured into a placement target location. Further, in the fourth to sixth embodiments, the cooling plant 42, the desalination device 52, and the material stocker 62 are provided on the barge 2, respectively, but the equipment of the cooling plant 42, the desalination device 52, and the material stocker 62 is provided. All or any two facilities may be provided on one barge 2.

[0028]

As described above, according to the present invention, by operating the concrete plant with the barge fixed above the water surface by the spat, the quality can be improved even in stormy weather with high swells and wave heights. It is possible to stably produce uniform concrete. In addition, since the barge is fixed by the spat without using mooring equipment and anchors on the quay, work can be performed even in a small construction area.

[Brief description of the drawings]

FIG. 1 is a side view showing a concrete plant ship according to Embodiment 1 of the present invention.

FIG. 2 is a plan view showing the concrete plant ship according to the first embodiment.

FIG. 3 is a front view showing the concrete plant ship according to the first embodiment.

FIG. 4 is a side view showing a concrete plant ship according to a second embodiment.

FIG. 5 is a plan view showing a concrete plant ship according to a second embodiment.

FIG. 6 is a side view showing a concrete plant ship according to a third embodiment.

FIG. 7 is a plan view showing a concrete plant ship according to a third embodiment.

FIG. 8 is a front view showing a concrete plant ship according to a third embodiment.

FIG. 9 is a plan view showing a concrete plant ship according to a fourth embodiment.

FIG. 10 is a plan view showing a concrete plant ship according to a fifth embodiment.

FIG. 11 is a plan view showing a concrete plant ship according to a sixth embodiment.

[Explanation of symbols]

1, 21, 31, 41, 51, 61 Concrete plant ship 2 barge 3 Concrete plant 4 Weighing hopper 5 Material supply ship 6 Receiving hopper 7 Belt conveyor 8 Wharf 9 Rampway 10 Spat 11 Elevating mechanism 17 Agitator car 22, 63 Material Supply belt conveyor 23 Material yard 32 Distributor 42 Cooling plant 52 Desalination equipment 62 Material stocker

Claims (8)

[Claims] 1. A barge, a concrete plant mounted on the barge, and a plurality of spats provided on the barge so as to be able to move up and down, wherein the plurality of spats descend to land on the sea floor. A concrete plant ship, wherein the concrete plant is operated with the barge fixed above the water surface. 2. The concrete plant ship according to claim 1, further comprising a receiving hopper for receiving concrete material from a material supply ship moored near the barge. 3. The concrete plant ship according to claim 1, further comprising material transport means for transporting the concrete material from a material yard installed on land to the concrete plant. 4. A ramp way for communicating the barge with a quay and passing an agitator vehicle therethrough.
4. The concrete plant ship according to any one of items 3 to 5. 5. The concrete plant ship according to claim 1, further comprising a distributor for directly supplying the concrete produced by the concrete plant to a casting site. 6. The concrete plant ship according to claim 1, further comprising a cooling plant for pre-cooling. 7. The concrete plant ship according to any one of claims 1 to 6, further comprising a desalination apparatus for producing fresh water used for concrete production from seawater. 8. The concrete plant ship according to claim 1, further comprising a material stocker for storing a concrete material.