JP2856668B2 - High concentration dredging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, harbors, rivers,
The present invention relates to a high-concentration dredging device used to excavate and discharge sludge, sediment, and sludge deposited on the bottom of a lake such as a lake, an artificial waterway (intake channel, discharge channel, sewage system, etc.).

[0002]

2. Description of the Related Art Conventionally, as a device for excavating sludge, earth and sand deposited under the water bottom and sucking and discharging the same with a pump, an excavating blade interlocking with a rotary drive device is provided, and a suction port is located outside the excavating blade. There is provided a configuration in which a suction pipe is provided. According to this conventional configuration, the excavating blade is rotated to excavate, and the excavated underwater sediment is sucked and discharged by the pump via the suction pipe.

[0003]

However, according to the above-mentioned conventional structure, the relationship between the excavation position by the excavation blade and the position of the suction port of the pump is important. As sediment and sediment mix with water while moving to the suction port, it will be diluted, so that high-concentration dredging cannot be discharged and inefficient dredging must be performed over a long period of time. There's a problem. In addition, the excavated sediment will make the water and the water surface turbid, thereby deteriorating the environment.
Moreover, large solids and contaminants mixed in the sediment cannot be discharged smoothly.

An object of the present invention is to provide a high-concentration dredging apparatus capable of discharging excavated sediment at a high concentration without deteriorating the environment and smoothly discharging large solids and foreign substances. The point is to provide.

[0005]

Means for Solving the Problems In order to achieve the above object,
In the high-concentration dredging device of the first invention, a coil-shaped ribbon screw is rotatably provided on a main body via a rotation drive device, and a suction pipe is provided with a suction hole facing a central hole of the coil-shaped ribbon screw. And the suction port is a coiled ribbon screw
Attachment between the coiled ribbon screw and the main body than the tip of
And rotate the coiled ribbon screw
The coiled ribbon screw blades
To move excavated earth and sand toward the suction port.
You. In addition, the high-concentration dredging device according to the second invention has a dredging movement method.
On the opposite side, a front cover is provided
After the dredging movement, the body
A rear cover is provided below the lower cover. Ma
The high-concentration dredging device according to the third aspect of the present invention has
Two ribbon screws are installed side by side in a pair on the left and right, and both coiled
The Bon Screws are rotated inward from each other.
You. Further, the high-concentration dredging device according to the fourth invention has a coiled
A large number of excavated teeth attached to the outer periphery of the bon screw blade
It is. Further, the high-concentration dredging device of the fifth invention has a coil
A brush is attached to the lower end of a ribbon screw.
You. Further, the high-concentration dredging device of the sixth invention absorbs floating mud.
Floating mud suction pipe is provided, and the suction port of this floating mud suction pipe is sucked.
It is higher than the suction port of the pipe.

[0006]

According to the structure of the first aspect of the present invention, by operating the rotary driving device to rotate the coiled ribbon screw and applying a suction force to the suction port of the suction pipe,
First, sediment can be excavated by rotation of the coiled ribbon screw, and the excavated earth and sand can be moved to the suction port side by the blade inclination of the coiled ribbon screw.

Since the suction force acts on the suction port facing the upper part in the center hole of the coiled ribbon screw, the excavated and moved sediment is immediately sucked into the suction port without rising. Can be discharged. At that time, the coil-shaped ribbon screw has a coil shape, so that no fibrous or string-like impurities are wound around the coil-shaped ribbon screw.
In addition, contaminants and large solids taken in from the inlet can be smoothly discharged without clogging. Further, the configuration of the third invention
According to the report, excavated earth and sand are moved inward and
The digging effect is obtained, preventing the excavated soil from rising.
Can stop and does not pollute the water surface. Further, according to the configuration of the fourth invention,
Then, reliable excavation can be performed by the excavated teeth. Also, this book
According to the configuration of the fifth invention, the wall of the waterway or the like is brushed.
Can be cleaned at the same time. In addition, the structure of the sixth invention.
According to the results, during excavation and discharge, floating mud is collected by the floating mud suction pipe.
Can be aspirated and drained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 3, the barge 1 is equipped with various dredging equipment 2, and a high-concentration dredging device 10 that excavates and sucks sediment 4 on the water bottom at the tip of a pipe 3 from the dredging equipment 2. Is provided.

As shown in FIGS. 1 and 2, the high-concentration dredging apparatus 10 has a coil-shaped ribbon screw 16 rotatably provided on a main body 11 via a rotary drive unit 12. The rotation drive device 12 includes a geared bearing 13 provided on the lower surface side of the main body 11.
And a pinion 14 that meshes with the outer peripheral gear portion 13a of the bearing 13 with gears, and a drive source (such as a motor) 15 that is attached to the output shaft and provided on the upper surface side of the main body 11 and the like. The coiled ribbon screw 16 has a central hole 17 formed therein, and is fixed to the lower surface side of the geared bearing 13 via an upper horizontal plate portion 16a.

The center hole of the coiled ribbon screw 16
A suction pipe 19 of a pump 20 is provided with the suction port 18 facing the 17. That is, the pump 20 is connected to the main body 11
The suction pipe 19, which is disposed on the upper side and projects downward, protrudes into the central hole 17. The tip of the pipe 3 is connected to the upper side of the pump 20.

A front cover 22 is provided below the main body 11 on the dredging moving direction side of the high-concentration dredging device 10, and the front cover 22 is swingable up and down (back and forth). A cylinder device 23 for swinging is provided between the gantry 21. In addition, on the rear side and both sides after the dredging movement, a rear cover 24 is provided downward from the main body 11,
A skirt 25 is provided downward from the lower end of the rear cover 24.

The coiled ribbon screw 16 and the suction pipe 19
Although the double type in which the right and left are arranged side by side in a pair is shown, this may be a single type. Also high concentration dredging equipment 10
Are configured to receive power from the barge 1 via wiring or the like. 5 shows floating mud.

Hereinafter, the dredging operation in the first embodiment will be described. By operating the rotary drive device 12 to rotate the coiled ribbon screw 16 and operating the pump 20 to apply a suction force to the suction port 18, the excavated sediment 4 is first excavated by the rotation of the coiled ribbon screw 16. Then, the excavated earth and sand 4 can be moved up inside the area surrounded by the covers 22 and 24 and the skirt 25 by the blade inclination of the coiled ribbon screw 16.

Since the suction force is acting on the suction port 18 facing the upper part in the center hole 17 of the coil ribbon screw 16, the sediment 4 that is excavated and moved upwards immediately enters the suction port 18. Suctioned, transported by piping 3 and barge 1
Discharged to the side.

At this time, since the coil-shaped ribbon screw 16 is a coil-shaped blade, fibrous or string-shaped impurities do not wrap around the coil-shaped ribbon screw 16, and the impurities taken in from the suction port 18 Large solids can be smoothly discharged without clogging by using a pump without a rotating body such as an ejector or an air-mixing jet pump.

Further, the coiled ribbon screw 16 has a combination of rotating directions in the case of a double (multiple) series, for example, as shown in FIG. The excavated earth 4 acts so as not to be lifted up while being moved into the suction port 3 while being moved, so that the water surface is not polluted. Further, the swing of the cover 22 and the size of the cover 22 can be changed in accordance with the depth of the sediment 4, the length of the coil ribbon screw 16 can be changed, and the position of the suction port 18 can also be changed. obtain.

FIG. 4 shows a second embodiment of the present invention, in which the coil ribbon screw 16, that is, the entire high-concentration dredging device 10 is arranged at an angle of Θ. According to the second embodiment, the excavated sediment 4 can be moved upward and backward and guided to the suction port 18.

FIG. 5 shows a third embodiment of the present invention, in which a number of excavating teeth 30 are attached to the outer periphery of the blade of the coiled ribbon screw 16. According to the third embodiment, the sediment 4 can be excavated more reliably by the excavation teeth 30.

FIG. 6 shows a fourth embodiment of the present invention, in which a lower end horizontal plate portion 16b integrated with the lower end of the coiled ribbon screw 16 is provided.
, A brush 31 is attached downward. According to the fourth embodiment, it is possible to simultaneously clean the wall surface of the water channel and the like.

FIG. 7 shows a fifth embodiment of the present invention.
It is configured to be detachable via 32 and bolt nuts 33. According to the fifth embodiment, the coil-shaped ribbon screw 16 can easily adjust the length and replace the tip portion 16c with respect to wear by operating the bolt and nut 33.

FIG. 8 shows a sixth embodiment of the present invention, in which a suction port 18 of a suction pipe 19 is provided outside the outer periphery of a coiled ribbon screw 16.
For this purpose, a floating mud suction pipe 34 having its suction port at the top is provided. According to the sixth embodiment, when the sediment 4 is excavated and discharged, the floating mud 5 can be sucked and discharged by the floating mud suction pipe 34.

FIG. 9 shows a seventh embodiment of the present invention in which a floating mud suction pipe 34 is provided above the coiled ribbon screw 16 and a separate suction pipe 35 is provided at the rear cover 24. According to the seventh embodiment, when excavating and discharging the sediment 4, the floating mud 5 can be sucked and discharged by the floating mud suction pipe 34, and the sediment 4
Can be separately suctioned and discharged by the suction pipe 35.

FIGS. 10 and 11 show an eighth embodiment of the present invention, in which a pair of coiled ribbon screws 16 are arranged in a horizontal direction. According to the eighth embodiment, a wide excavation discharge operation can be performed.

FIG. 12 shows a ninth embodiment of the present invention, in which a pair of coiled ribbon screws 16 are arranged in an inverted C shape. According to the ninth embodiment, excavation and discharge work of the round water channel 36 and the like can be suitably performed.

In each of the above embodiments, the position of the suction port 18 of the suction pipe 19 with respect to the center hole 17 of the coiled ribbon screw 16 depends on the depth of the sediment 4 and the excavation depth. It can be displaced by adjusting the length of 16 or by adjusting the height of the suction pipe 19. Further, the coiled ribbon screws 16 can be arranged singly or in multiples according to the excavation width.

In each of the above embodiments, the position and type of the suction pump 20 are not limited. Also pump 20
Alternatively, an ejector may be used. An embodiment in which the horizontal screw type shown in the eighth embodiment (FIGS. 10 and 11) is combined with the vertical screw type shown in other embodiments is also possible.

[0027]

According to the present invention having the above structure, the suction port faces the central hole of the coiled ribbon screw.
The coiled ribbon screw excavates and immediately sucks the excavated earth and sand that is moving, allowing dredging at a high concentration. This allows efficient and efficient dredging work to be performed quickly and economically. It can be discharged without deteriorating the environment without turbidity of the water or the water surface, and large solids and impurities mixed in the sediment can be discharged smoothly.

The coiled ribbon screw can be of a single type or a multiple type according to the working conditions, and can be used for small to large-scale dredging, and can be arranged vertically or horizontally according to the working conditions. . In the case of the multiple type, it is possible to change the rotational speed of the screw and the direction (left-right direction) of the suction force. For example, in the case of excavation splicing, water is easily sucked into the excavated side, so that the rotation speed and suction force of the screw can be reduced.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a high-concentration dredging device according to a first embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG.

FIG. 3 is an explanatory diagram related to the high concentration dredging apparatus and the barge.

FIG. 4 shows a second embodiment of the present invention and is a partially cutaway side view of a high-concentration dredging device.

FIG. 5 shows a third embodiment of the present invention and is a side view of a main part of a coiled ribbon screw.

FIG. 6 shows the fourth embodiment of the present invention and is a side view of a main part of a coil ribbon screw.

FIG. 7 is a side view of a main part of a coil ribbon screw according to a fifth embodiment of the present invention.

FIG. 8 shows a sixth embodiment of the present invention and is a partially cutaway side view of a high concentration dredging device.

FIG. 9 shows a seventh embodiment of the present invention and is a partially cutaway side view of a high-concentration dredging device.

FIG. 10 is a schematic plan view of a high-concentration dredging device according to an eighth embodiment of the present invention.

FIG. 11 is a schematic side view of the high concentration dredging device.

FIG. 12 is a schematic front view of a high-concentration dredging device according to a ninth embodiment of the present invention.

[Explanation of symbols]

 1 Barge 3 Piping 4 Sediment 5 Sediment 5 Floating mud 10 High concentration dredging device 11 Main body 12 Rotary drive device 15 Drive source 16 Coiled ribbon screw 16a Upper horizontal plate 16b Lower horizontal plate 16c Tip 17 Central hole 18 Suction port 19 Suction pipe 20 Pump 22 Front cover 24 Rear cover 25 Skirt

Claims (6)

(57) [Claims] To 1. A body, via the rotary drive provided rotatably coiled ribbon screw, disposed the suction pipe so as to face the inlet in the center hole portion of the coiled ribbon screw, the suction port Is more than the tip of the coiled ribbon screw
Position it close to the part where the coil ribbon screw and the main unit are attached.
When the coiled ribbon screw is rotated,
Excavated earth and sand is excavated by the inclination of the blades of the ribbon ribbon screw.
A high-concentration dredging device, which is moved toward the suction port . 2. On the dredging moving direction side, a lower
Front cover is provided on the side, and both sides from the direction after the dredging movement
A rear cover is provided downward from the main body.
2. The high-concentration dredging device according to claim 1, wherein
Place. 3. A coiled ribbon screw is provided on the main body.
Two coil-shaped ribbon screws are arranged side by side in a pair.
2. The method according to claim 1, wherein the rotation is performed in an inward direction.
The high concentration dredging device according to claim 2. 4. A multi-layer structure around the outer periphery of the coil ribbon screw blade.
2. The contract according to claim 1, wherein a number of cutting teeth are mounted.
The high-concentration dredging device according to claim 3. 5. A braid at the lower end of the coil ribbon screw.
4. The method according to claim 1, further comprising:
The high-concentration dredging device according to any one of the above. 6. A floating mud suction pipe for sucking floating mud is provided.
The suction port of the floating mud suction pipe is higher than the suction port of the suction pipe
The method according to any one of claims 1 to 5, wherein
High concentration dredging equipment.