JP2862816B2 - Method and apparatus for separating muddy water containing sediment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for separating muddy water containing soil and gravel generated during excavation of ground in civil engineering construction work into water and sediment.

[0002]

2. Description of the Related Art As a conventional method and apparatus for separating sediment, gravel, etc. and water from muddy water containing sediment, etc., there are a natural sedimentation method utilizing a suspended substance in water settling by its own weight, and a flocculant. There is a coagulation sedimentation method that forms flocs by injecting and stirring into wastewater to promote sedimentation. To dewater sludge, pressurized dehydrator pressurizes the stock solution with a slurry pump and depressurizes the filtration side with a vacuum pump. Vacuum dehydrator,
There are a granulating dehydrator and a centrifugal separator that dehydrate and solidify with a chemical.

[0003]

The above-mentioned conventional precipitation method has problems that it requires a long operation time and a large space, and the above-mentioned various dehydrators increase equipment costs and operating costs. There is a problem that it also takes. Therefore, the problem to be solved by the present invention is to provide a muddy water separation device that has a simple structure, is easy to reduce in size and weight, is easy to transport, requires less installation space, and is less likely to break down. It is an object of the present invention to provide a method for separating muddy water in accordance with the law of nature used.

[0004]

In order to solve the above-mentioned problems, a method for separating muddy water containing sediment, sand and the like according to the present invention is directed to a lower chamber of a container provided with a filter at an intermediate portion capable of separating water and sediment. To send muddy water containing sediment and the like to sediment the sediment and the like in the lower chamber, and to collect water that has passed through the filter by natural ascent in the upper chamber,
Further, the invention is characterized in that sediment, sand and the like accumulated in the lower chamber are discharged to the outside as needed.

Further, in the apparatus for separating muddy water containing sediment, etc. according to the present invention, a filter capable of separating water and sediment, etc. is provided in an intermediate portion of a container, and the lower chamber of the container is supplied with muddy water containing sediment, sand, etc. A supply pipe is connected, muddy water is sent to the lower chamber, sediment and the like are settled in the lower chamber, and water that has passed through the filter by natural ascent is collected in the upper chamber,
Further, the present invention is characterized in that an earth discharging means for discharging earth and sand and gravel accumulated in the lower chamber to the outside as necessary is provided.

[0006] The filter in the separation device according to the present invention is preferably formed by a laminate of a wire net and a filter cloth.

[0007] The filter may use a perforated plate instead of a wire mesh.

[0008] As a discharging means in the separation device according to the present invention, a drawer-type discharging vessel may be provided in a lower chamber of the container.

Further, as the earth discharging means, a part of the side plate of the container in the separation device may be made openable and closable from this part.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a box-shaped container having an open upper surface. In the present embodiment, the muddy water 2
3 that can separate water 2a from soil and gravel 2b
Is stretched horizontally in the middle of the container 1 and a feed pipe 4 for muddy water 2 containing sediment is connected to the lower chamber A of the container 1 to constitute a separation device for muddy water containing sediment. .

Reference numeral 5 in FIGS. 1 and 2 denotes a pump for sucking water installed in the upper chamber B of the container 1, and reference numeral 5a denotes a discharge pipe thereof. Reference numeral 6 in FIG. 2 denotes an angle member fixed to a wall surface in the container 1, and supports the filter 3.

FIG. 3 shows an example of the structure of the filter 3, wherein 3a is a wire mesh and 3b is a filter cloth. That is, in this case, the filter 3 is formed by sandwiching the filter cloth 3b in a sandwich shape between two metal meshes 3a. If necessary, the filter 3 may be used by laminating several layers.

The wire netting 3a is preferably made of stainless steel or copper because it does not rust. The filtering cloth may be cotton, hemp, other synthetic fibers, or the like, provided that it has an appropriate mesh and durability. Good. Instead of the wire mesh 3a, a perforated plate (punched metal) having a large number of holes may be used.

FIG. 4 shows an example of use of the separation apparatus of the present invention. In the figure, the same reference numerals as those described above denote the same components. In the figure, 7 is a ground, 8 is a hole in which the ground 7 is excavated, 2 is muddy water containing sediment and the like accumulated at the bottom of the hole 8, and 9 is a suction pump thereof.

As shown in FIGS. 2 and 4, the method for separating muddy water containing sediment, sand and the like according to the present invention comprises a lower chamber A of a container 1 provided with a filter 3 at an intermediate portion for separating water and sediment.
Muddy water 2 containing sediment and gravel is sent to the lower chamber A to sediment the sediment 2b and the like, and the water 2a that has passed through the filter 3 is collected in the upper chamber B.

The capacity of the container 1 may be determined according to the corresponding work. That is, in the case of construction with a large amount of excavation, a large container is used, and in the case of construction with a small amount of excavation, a small container is sufficient. However, once it is full, the water 2a in the upper chamber B is used.
, And after the sediment 2b or the like 2b accumulated in the lower chamber A is discharged to the outside, the container 1 can be reused.

Although any method may be used for discharging the sediment 2b or the like 2b in the container 1, FIG. 5 shows an example. That is, reference numeral 10 denotes a draw-out type discharging vessel provided in the lower chamber A of the container 1, and this vessel 10
Can easily discharge the sediment 2b or the like accumulated inside. When the vessel 10 for discharging the earth is stored, a packing (not shown) for maintaining the watertightness between the vessel 10 and the container 1 is required, and the drawer 10 can be easily pulled out and stored by the arrow C of the vessel 10. For this purpose, guide rails and rollers (not shown) may be provided.

FIG. 6 shows that the side plate 1a of the container 1 can be opened and closed as shown by the arrow D, and the container 1
Sediment and gravel may be discharged to the outside. Also in this case, when the side plate 1a is closed, a seal (rubber packing) at the joint with the container 1 is required.

[0019]

As described above, the method and apparatus for separating muddy water containing sediment and gravel, etc.
Is poured into the lower chamber A of the container 1 to precipitate heavy earth and sand 2b and the like, and light water 2a is floated in the upper chamber B via the filter 3, which is a natural principle. Muddy water can be easily separated without using force or the like.

The filter 3 used in the present invention includes:
Since water passes from below to above, there is no danger of clogging unlike a conventional filter. Therefore, according to the present invention, efficient filtration is always performed, and the upper chamber B
The water that has accumulated in the water has good water quality and is suitable for reuse.

As described above, the apparatus of the present invention satisfies the natural law of sinking heavy sediment 2b and the like, and floating light water 2a through the filter 3, so that the structure is simple and the size and weight are reduced. In addition to this, an excellent effect that not only is easy to carry, but also does not require much installation space, and there is no fear of failure.

[Brief description of the drawings]

FIG. 1 is a perspective view of the device of the present invention.

FIG. 2 is a longitudinal sectional view showing a use state of the device of the present invention.

FIG. 3 is a partial perspective view showing an example of a filter.

FIG. 4 is a vertical sectional view showing an example of an excavation site using the apparatus of the present invention.

FIG. 5 is a perspective view of a container having an earth discharging vessel.

FIG. 6 is a perspective view of a container in which a part of a side plate is freely opened and closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 1a Part of side plate 2 Muddy water 2a Water 2b Sand and gravel 3 Filter 3a Wire mesh 3b Filter cloth A Lower chamber B Upper chamber 4 Feeding pipe 5 Pump 5a Discharge pipe 6 Angle material 7 Ground 8 Drilled hole 9 Suction pump 10 Discharge vessel

Claims (6)

(57) [Claims] Claims 1. A muddy water containing sediment and the like is fed into a lower chamber of a container provided with a filter capable of separating water, sediment and the like in an intermediate part, and sediment and the like are precipitated in the lower chamber.
A method for separating muddy water containing sediment and gravel, wherein the water that has passed through the filter by natural ascent is collected in the upper chamber, and the sediment and the like accumulated in the lower chamber are discharged to the outside as needed. . 2. A filter capable of separating water and sediment is provided at an intermediate portion of the container, and a muddy water supply pipe containing sediment is connected to a lower chamber of the container. The sediment and the like are settled in the chamber and the water that has passed through the filter by natural ascent is collected in the upper chamber, and further, a soil discharging means for discharging the sediment and the like accumulated in the lower chamber to the outside as necessary is provided. An apparatus for separating muddy water containing sediment, sand and gravel. 3. An apparatus according to claim 2, wherein said filter is formed by a laminate of a wire mesh and a filter cloth. 4. The apparatus according to claim 2, wherein the filter is formed by a perforated plate. 5. An apparatus according to claim 2, wherein a draw-out type discharging vessel is provided in a lower chamber of said container as said discharging means. 6. The apparatus according to claim 2, wherein a part of a side plate of the container is openable and closable as the discharging means.
An apparatus for separating muddy water containing sediment, sand, etc., characterized in that soil can be removed from this part.