JPH0960038A - Sediment and gravel contained slurry separating method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slurry separating device, which is simple in structure, can be miniaturized, lighten, and conveyed with ease, saves floor space and scarcely broken, and a slurry separating method using the device and standing to the natural law. SOLUTION: Mud water 2 containing sediment and gravel is sent to the lower chamber A of the container 1 in which a filter 3 capable of separating water 2a and sediment/gravel 2b provided at the intermediate section, settling the sediment and gravel 2b in the lower chamber A. Then, the water 2a passing through the filter 3 is collected in an upper chamber B.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As a conventional method and apparatus for separating gravel and the like from water from muddy water containing the gravel and the like, a natural precipitation method utilizing the fact that suspended matter in water settles by its own weight, and a flocculant There is a coagulation-sedimentation method that promotes precipitation by injecting and stirring water into sewage, and to dehydrate from sludge, a pressure dehydrator that pressurizes the stock solution side with a slurry pump and a vacuum side with a vacuum pump is used. Vacuum dehydrator,
There are granulating dehydrators, centrifugal separators, etc. that dehydrate and solidify with chemicals.

[0003]

The above-mentioned conventional precipitation method has a problem that it requires a long time and requires a large space, and the various dehydrators described above are
There is a problem that not only the equipment cost increases but also the operating cost increases.

[0004]

In order to solve the above problems, a method for separating muddy water containing gravel and the like according to the present invention is as follows:
The muddy water containing gravel and gravel is sent to the lower chamber of the container that has a filter that can separate water and gravel and gravel in the middle part, and the gravel and gravel etc. is allowed to settle in the lower chamber, and the water that has passed through the filter is filtered in the upper chamber. Try to collect in.

Further, in the present invention, a filter capable of separating water and gravel and the like is provided in the middle part of the container, and a muddy water feed pipe containing the gravel and the like is connected to the lower chamber of the container to connect the gravel and the like. A muddy water separation device including is constructed.

Further, the filter of the above-mentioned separating device may be formed by a laminated body of a wire mesh and a filtering cloth.

A perforated plate may be used in place of the wire mesh of the filter of the above-mentioned separation device.

A drawer-type earth discharging vessel may be provided in the lower chamber of the container of the above-mentioned separating apparatus.

Further, a part of the side plate of the container of the above-mentioned separating device may be opened and closed so that the soil can be discharged from this part.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, 1 is a box-shaped container with an open top. In this embodiment, muddy water 2 containing gravel and the like
Filter 3 that can separate water 2a from gravel and gravel 2b
Is horizontally stretched in the middle part of the container 1, and a feed pipe 4 for the muddy water 2 containing gravel and the like is connected to the lower chamber A of the container 1 to form a device for separating muddy water containing gravel and gravel. .

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

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

The metal mesh 3a is preferably made of stainless steel or copper because it does not rust, and the strainer cloth is made of cotton, hemp, or other synthetic fibers and has suitable roughness and durability. Good. Further, instead of the metal net 3a, a perforated plate (punching metal) in which a large number of holes are distributed may be used.

FIG. 4 shows an example of use of the separating apparatus according to the present invention. In the figure, the same reference numerals as those used in the drawings denote the same elements. In the figure, 7 is the ground, 8 is a hole excavated from the ground 7, 2 is muddy water containing gravel and the like accumulated at the bottom of the hole 8, and 9 is its suction pump.

The method for separating muddy water containing gravel and the like according to the present invention is, as shown in FIGS. 2 and 4, a lower chamber A of a container 1 in which a filter 3 capable of separating water and gravel and the like is provided in an intermediate portion.
The muddy water 2 containing gravel and the like is fed to the lower chamber A to deposit the gravel and gravel 2b in the lower chamber A and collect the water 2a passing through the filter 3 in the upper chamber B.

The capacity of the container 1 may be determined according to the corresponding construction. That is, a large container is sufficient for construction with a large amount of excavation, and a small container is sufficient for construction with a small amount of excavation, but once it is full, the water 2a in the upper chamber B is
It is also possible to reuse the container 1 after removing the water and discharging the gravel and the like 2b accumulated in the lower chamber A to the outside.

Any method may be used for discharging the gravel and the like 2b in the container 1, and FIG. 5 shows an example thereof. That is, 10 is a drawer-type earth removal vessel provided in the lower chamber A of the container 1.
By pulling out, the gravel and the like 2b accumulated inside can be easily discharged. It should be noted that when the earth-discharging vessel 10 is stored, packing (not shown) for maintaining watertightness between the vessel 10 and the container 1 is required, and the vessel 10 can be easily pulled out and stored as indicated by an arrow C. For this purpose, guide rails and rollers (not shown) may be provided.

Further, in FIG. 6, a part 1a of the side plate of the container 1 is made openable and closable as shown by an arrow D, and from this part the container 1 is opened.
You may make it discharge gravel etc. inside. 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]

INDUSTRIAL APPLICABILITY As described above, the method and apparatus for separating muddy water containing gravel and debris according to the present invention includes the muddy water containing gravel and debris 2
Is poured into the lower chamber A of the container 1 to settle heavy debris 2b and the like, and light water 2a is floated through the filter 3 into the upper chamber B, which is a natural principle. Muddy water can be separated reasonably without using force.

The filter 3 used in the present invention includes
Since water passes from the bottom to the top, there is no risk of clogging as in conventional filters. Therefore, according to the present invention, efficient filtration is always performed, and the upper chamber B is
The quality of the water accumulated in the water is good and it is suitable for reuse.

As described above, the device of the present invention complies with the natural law of sinking heavy gravel or the like 2b and causing light water 2a to float through the filter 3, so that the structure is simple, and the size and weight are reduced. In addition to being easy to carry, it does not require much space for installation and requires no installation space, and there is no fear of failure.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view showing a usage 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 work site using the device of the present invention.

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

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

[Explanation of symbols]

 1 container 1a part of side plate 2 muddy water 2a water 2b gravel and gravel 3 filter 3a wire netting 3b filtering cloth A lower chamber B upper chamber 4 feed pipe 5 pump 5a discharge pipe 6 angle material 7 ground 8 drilled hole 9 suction pump 10 Earth removal vessel

Claims (6)

[Claims] 1. A muddy water containing gravel and gravel is sent to a lower chamber of a container provided with a filter capable of separating water and gravel and gravel in the middle part to precipitate the gravel and gravel into the lower chamber and pass through the filter. The method for separating muddy water containing gravel and gravel is characterized in that the collected water is collected in the upper chamber. 2. A gravel gravel, etc., characterized in that a filter capable of separating water and gravel gravel etc. is provided in the middle part of the container, and a muddy water supply pipe containing the gravel gravel etc. is connected to the lower chamber of this container. Separation device including muddy water. 3. A device for separating muddy water containing gravel, etc., characterized in that the filter of the device according to claim 2 is formed by a laminate of a wire mesh and a filtering cloth. 4. A device for separating muddy water containing gravel, etc., characterized in that a perforated plate is used instead of the wire mesh of the filter of the device according to claim 3. 5. A device for separating muddy water containing gravel and debris, characterized in that a drawer-type vessel for discharging soil is provided in the lower chamber of the container of the apparatus according to claim 2. 6. A device for separating muddy water containing gravel, etc., characterized in that a part of a side plate of a container of the device according to claim 2 can be opened and closed so that soil can be discharged from this part.