JPH09209395A - Sedimentary mud disposal system for lake, marsh, and river - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent various devices from injuring and effectively utilize muddy water and fresh water by leaving pebbles in lakes, marshes, and rivers, sucking only muddy water containing mud, and separating the muddy water into mud and fresh water. SOLUTION: After setting a mud collecting part A on mud 23, the muddy water passing body 3 of the mud collecting part A is rotated and a pump 4 is operated. As a result of this, muddy water 21 or disposal soil containing water content under fixed grain size is sucked from the through holes of the muddy water passing body 3, and it reaches a muddy water disposal device 5 on the ground 22 through a hose 6 for dredging. Namely, the muddy water passing body 3 makes a rigid distinction between disposal soil containing water content and pebbles, and collects treated soil. Next muddy water 21 and disposal soil containing water content are made sharp distinction between fresh water and muddy water containing organic substance by the muddy disposal device 5. The mud containing organic substance is utilized as fertile soil, after being accumulated. Meanwhile the fresh water is led to the mud collecting part A through a hose 7 for disposal fluid, peels off refuse stuck to the through holes of the muddy water passing body 3 so as to prevent the through holes from clogging.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a mud treatment system for removing mud deposited and settled on the bottom of lakes and rivers.

[0002]

2. Description of the Related Art The current dredging is carried out by a dredging method in which a suction pump installed in water or a dredger is used to suck up a large amount of mud deposited on the bottom of lakes and rivers, and to make a distinction between fresh water and sediment. ing. However, in this method, a large amount of gravel and muddy water (generally referred to as mud) are sucked up by a powerful suction pump, so sand and mud become individual block fields at the above-ground discharge site (mud storage site). , Has caused immobility subsidence. Further, even when it is landfilled in a field or the like, there is a problem that it is not uniform and sand is mixed.

[0003] And as technical literatures related to this,
The following inventions may be mentioned.

(2) There is a dredging device for water-bed mud disclosed in JP-A-64-48937. The present invention relates to a submersible pump arranged in the vicinity of a screw and a submersible suction port provided in a submarine traveling vehicle, and a tank which is connected to the submersible pump at least partially by a flexible transport pipe and arranged onboard or on land. And a pump or an exhaust blower connected to the tank, and an underwater pump and an exhaust blower at both ends of the transport pipe, so that the synergistic effect of them makes it possible to very efficiently remove the water bottom mud. Characterized by being able to dredge. (1) There is a drag suction dredger disclosed in JP-A-62-164922. This invention is a dredger configured to store mud water in a mud barge of a dredger by the operation of a dredging pump and discharge the water overflowing from the mud bar (overflow water) to the outside of the ship. It is configured to return to the drag head, and the turbid water separated from the mud can be circulated to increase the concentration of the mud in the mud barge, and it is necessary to interrupt the dredging before the turbid water overflows. It is characterized in that the dredging efficiency can be improved without the need.

[0005]

DISCLOSURE OF THE INVENTION According to the above-mentioned invention, mud (sand gravel and muddy water) is mixed and sucked, stored in a dredger or a mudyard, settled and separated by the dredger or the like, and gravel is separated from fresh water. This is the configuration. That is, when sucking the accumulated mud, the gravel and the mud are sucked in at the same time. Therefore, there are problems such as damage to various devices, inability to effectively use mud and fresh water, and increase in size of the device. In addition, the dredging device is configured to run along the bottom (hereinafter referred to as the bottom) of the lake bottom, swamp bottom, river bottom, etc., and since it is a simple movement, it is necessary to distinguish the bottom gravel and muddy water reliably. It is difficult to efficiently suck in only the treated soil containing water.

[0006]

In view of the above, according to the present invention, the gravel is left in lakes and rivers, the mud containing only mud is sucked up, and the organic matter is separated by a treatment device for separating mud and fresh water on the ground. The following structure will be adopted for the purpose of effectively using the mud containing water and returning clean water to lakes and rivers.

[0007] That is, the present invention comprises a step of separating the particle size of the gravel and the water-containing treated soil from the sedimentary mud by a mud sampling unit installed in the sedimentary mud of lakes and rivers. A transport step of sending the treated soil containing water sampled in this distinction treatment step to a muddy water treatment device for final distinction using a dredging hose, and the treated soil containing water sent in in this conveyance step is the muddy water treatment device In the final sharpening step of sharply distinguishing between fresh water and clay, the particle size of silt, etc., and the fresh water generated in this final sharpening step is returned to the lake / river via the treatment fluid hose, and It is a system for processing sedimentary mud in lakes and rivers, which consists of a fresh water utilization process used to prevent clogging.

Further, the present invention efficiently sucks the treated soil containing water through the vertical movement of the sludge collecting section or surely distinguishes the gravel and the treated soil containing water from the sludge collecting section. Intended to avoid clogging, etc.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION After the mud collecting portion is set on mud as shown in the figure, the mud passing body of the mud collecting portion is rotated and the pump is operated. Through this operation, the through holes of the muddy water passing body (including meshes, pores, slits, holes, cuts, etc.)
More muddy water or treated soil containing less than 74 μm of water is sucked in and reaches the muddy water treatment device via the dredging hose. In principle, the particle size that can be distinguished by the muddy water passing body is approximately 74
With μ as a reference, a particle size or a fluid having a particle size smaller than this (hereinafter, treated soil containing water) is sucked. That is, the treated soil containing water and the gravel are separated and collected by the muddy water passing body. The mud passing body can be efficiently moved up and down by the vertical movement of the operating rod to efficiently separate mud or gravel and treated soil containing water. Including the topography) is a configuration that can be accommodated.

The muddy water and the treated soil containing water that have been sucked in as described above are guided to the muddy water treatment device and separated and treated by the muddy water treatment device. That is, the muddy water treatment device makes a distinction between fresh water and mud containing organic matter, and the mud containing organic matter is deposited and then used as a rich soil.
On the other hand, Shimizu uses the treated fluid hose to guide it to the mud collection section,
The dust adhering to the through holes of the muddy water passage body that constitutes the mud collecting part is peeled off to help prevent clogging of the through holes, and the fresh water is returned to lakes, rivers and the like. In addition, FIG. 1 shows a state before the mud collecting portion is placed on the mud and is operated. Further, FIG. 2 shows a state in which mud is sucked up by the above-mentioned operation and sequentially processed.

When the fresh water is introduced into the mud collecting section through the treatment fluid hose, air (outside air) may be introduced into the treatment fluid hose for the purpose of improving efficiency or avoiding clogging. .

[0012]

EXAMPLES In explaining one example of the present invention,
An example of a suitable dredging device will be described. Reference numeral 1 is an operating rod, and a supporting frame 2 is provided below the operating rod 1. The supporting frame 2 is provided with a rotatable or fixed mud passage body 3. It is provided. The muddy water passage body 3 has a large number of through holes (preferably about 74 μm) and is configured to be able to suck in treated soil containing water. A preferred example of the muddy water passage body 3 will be described. A metal net 31 is provided on the support frame 2, a passage pipe 32 having a through hole 33 is provided in a space defined by the support frame 2 and the metal net 31, and the metal net 31 The treated soil containing water is sucked into the passage tube 32 through the through hole 33 while making a distinction. A pump 4 is provided in the muddy water passage body 3. The pump 4 is not limited to submersible water, and can be used when the same effect is exerted on the ground, on the ground, or on the ship. The operation rod 1, the support frame 2, the muddy water passage body 3 or the pump 4 constitutes a mud collecting section A. The muddy water passage body 3 may be rotated for the purpose of preventing clogging or efficient suction. Similarly, the muddy water passing body 3 may move up and down by utilizing the up and down movement of the operating rod 1. Of course, various combinations are used depending on the situation or ability to use the above-mentioned rotation and vertical movement together, the mechanism, and the like.

Reference numeral 5 in the figure is a muddy water treatment device for distinguishing fresh water from treated soil containing water (see FIG. 4), which is provided on the ground or on a ship. The muddy water treatment device 5 is provided with a dredging hose 6 Is connected to the pump 4, and the treated soil containing water sucked by the pump 4 (the treated soil containing water having a diameter smaller than about 74 μ by the muddy water passage body 3 and muddy water as described above) is treated with muddy water. It is configured to be sent to the device 5. Further, the fresh water separated by the muddy water treatment device 5 is returned to the pump 4 or the muddy water passage body 3 by using a method of returning it to a lake, a river or the like, or using the treatment fluid hose 7, and the muddy water passage body 3 is clogged. There are methods used for resolution, etc.
Air may be introduced into the processing fluid hose 7.
In addition, the treated soil is used as a rich soil in the field.

In the figure, 20 is a dredging object such as a lake or a river, 2
1 is muddy water, 22 is ground, 23 is mud, and 24 is gravel.

FIG. 4 shows the classification of soil according to the grain size.

[0016]

Industrial Applicability According to the present invention, gravel and water-containing treated soil are collected and collected in a mud collecting section, and then, fresh water and treated soil are separated by a muddy water treatment device. The water or treated soil is a method to be reused as soil in fields. Therefore, effective and efficient dredging can be achieved,
And the effective utilization of the separated products is achieved,
And so on. Moreover, the simple structure and small number of parts make it ideal for the treatment of sediments in small lakes and rivers. Further, by utilizing the rotation and vertical movement of the muddy water passing body, there is an effect that the treated soil containing water can be efficiently and reliably sharply separated and sucked.

[Brief description of drawings]

FIG. 1 is a schematic view showing a situation before processing of the present invention.

FIG. 2 is a schematic view showing a situation after the processing of the present invention.

FIG. 3 is an enlarged schematic sectional view of a muddy water passage body.

FIG. 4 is a diagram showing classification of soil by particle size.

[Explanation of symbols]

 1 Operation Rod 2 Support Frame 3 Muddy Water Passage 31 Wire Mesh 32 Passage Pipe 33 Through Hole 4 Pump 5 Muddy Water Treatment Device 6 Dredging Hose 7 Treated Fluid Hose 20 Dredging Target 21 Mud 22 Ground 23 Mud 24 Gravel A

Claims (4)

[Claims] 1. A distinction treatment step for distinctly collecting the particle size of the gravel and the water-containing treated soil from the sedimentary mud by means of a mud collection unit installed in the sedimentary mud of lakes and rivers, and this distinction treatment step. The process of transporting the treated soil containing water sampled in step 1 to a muddy water treatment device for final separation using a dredging hose, and the treated soil containing water sent in this transport process is treated with fresh water and clay in the muddy water treatment device. , Final separation step to separate the particle size of silt, etc., and to return the fresh water generated in this final separation step to the lakes and rivers through the treatment fluid hose, and to prevent clogging of the mud collection section. A freshwater utilization process to be used, and a sediment / mud treatment system for lakes / rivers. 2. A sharp separation treatment step of finely separating the particle size of the gravel and the water-containing treated soil from the sedimentary mud by means of a mud collection unit installed in the sedimentary mud of lakes and rivers, and this sharp separation treatment step. The process of transporting the treated soil containing water sampled in step 1 to a muddy water treatment device for final separation using a dredging hose, and the treated soil containing water sent in this transport process is treated with fresh water and clay in the muddy water treatment device. , Final separation step to separate the particle size of silt, etc., and to return the fresh water generated in this final separation step to the lakes and rivers through the treatment fluid hose, and to prevent clogging of the mud collection section. The fresh water utilization process to be used and air is introduced into the treatment fluid hose used in combination with the fresh water utilization process, and the air is returned to the lake / river via the treatment fluid hose to activate the lake / river. In addition to the above, And Shimizu utilizing step utilizes the clogging prevention mud part, in the deposition of lakes and rivers of claim 1, which consists mud treatment system. 3. The lake / river sediment mud treatment system according to claim 1 or 2, wherein the mud collecting section moves up and down during mud sampling. 4. The mud collecting section comprises a cylindrical mud collecting section main body having a through hole on an outer surface thereof, and a main body frame pivotally supporting the mud collecting section main body. Item 2. A lake / river sedimentary mud treatment system according to item 2.