JP2001137897A - Simple mud separating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve work efficiency by making a mud separating device compact and extremely simplifying the setting at a job site, and to quicken transport of the mud through a vacuum pump and the discharge of the mud to the outside as a flock in which the water content is small. SOLUTION: A soil stabilization waste mud is transported through a vacuum pump to a flocculation reaction tank so as to form a flock, and moisture is removed while the flock is moved by utilizing drum rotation between a mesh or slit type waste mud separating drum rotated by a motor and the vacuum pump mounted on the outer peripheral part of the drum, and the flock whose moisture is removed is discharged through the vacuum pump.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of a simple type muddy water separating apparatus.

[0002]

2. Description of the Related Art As a conventional muddy water separating apparatus, there is one disclosed in Japanese Patent No. 2724442 owned by the present applicant.

[0003] In the above invention, the solid-liquid separator for flock having a built-in screw portion is large and takes up space. Therefore, when the ground improvement site was narrow, it was extremely difficult to install it. Further, when the site was narrow, workability was poor.

[0004]

SUMMARY OF THE INVENTION According to the present invention, the muddy water separation apparatus is made compact, installation on site is extremely easy, and workability is remarkably improved.

Further, the present invention speeds up the transportation of muddy water via a vacuum pump and the discharge of the mud to the outside as a floc having a small water content.

[0006]

According to the first aspect of the present invention,
The ground improvement waste mud is fed into the flocculation reaction tank via a vacuum pump to form flocs, and the floc is moved between a mesh or slit type waste mud separation drum rotated by a motor and a vacuum pump mounted on the outer peripheral portion of the drum. Is a simple type of muddy water separating apparatus characterized in that water is removed while moving using the rotation of the drum, and the floc from which the water has been removed is discharged via a vacuum pump.

According to a second aspect of the present invention, the ground improvement waste mud is fed into a flocculation reaction tank via a vacuum pump to form flocs, and the floc is fed to a mud separation apparatus which is set at a higher position than the reaction tank, and the mud separation is performed. Separated into mud and water through a storage unit in the apparatus, the water is stored in the water storage unit, and the water is discharged by a vacuum pump mounted on the outside of the separation apparatus. This is a simplified type of muddy water separation device characterized by being discharged to an external container car or mud storage tank.

According to a third aspect of the present invention, there is provided a simplified muddy water separating apparatus according to the second aspect, wherein two water storage sections for storing only water contained in flocs are provided inside the waste muddy water separating apparatus. It is.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the first aspect of the present invention will be described.

[0010] a is a simple type of muddy water separating apparatus, which has the following configuration. Reference numeral 1 denotes a vacuum pump which sends ground improvement waste mud to the coagulation reaction tank 2 via the pump 1. Reference numeral 3 denotes a pipe connecting the reaction tank 2 and the pump 1, and a flocculant is fed into the pipe 3 from a flocculant tank 4 storing a flocculant.

The muddy water in the reaction tank 2 flocks.
Reference numeral 5 denotes a mesh or slit type waste mud separation drum which is rotated by a motor 6. Reference numeral 7 denotes a vacuum pump which presses a conveyed floc mounted on the outer peripheral portion of the drum 5 to remove moisture.

While transporting the flocs conveyed as described above using the rotation of the drum 5, water is removed as much as possible, and the removed flocs are accumulated in the lower part of the drum 5. Further, the separated water removed by pressing is stored in the pit 8. The accumulated flocks are discharged through the vacuum pump 9.

Reference numeral 10 denotes a pit containing high-concentration muddy water;
1 is a hose.

The vacuum pumps 1 and 9 for sucking mud are commercially available.

The structure of the drum 6 has a compact shape, unlike the screw shape.

Further, the drum 6 of the present invention has a structure in which the moisture contained in the flocks is extruded as easily as possible when pressurized. Therefore, a slit-shaped member or a mesh-shaped member is used.

According to the present invention, if the length of the drum 6 is made extremely short, it can be set sufficiently when the site is narrow.

An embodiment according to the second aspect of the present invention will be described. The present invention is slightly different from the first embodiment.

According to the present invention, ground improvement waste mud is fed into a coagulation reaction tank 2 via a vacuum pump 1 to form flocs. At this time, a predetermined amount of coagulant is injected into the reaction tank 2 from a coagulant tank 4 connected thereto. Then, the flocked muddy water is sent to a muddy water separating device 12 which is set at a higher position than the reaction tank 2. Then, the flocs stored in the storage unit 15 in the muddy water separation device 12 are separated into mud and water, and the water is stored in the water storage units 14 and 18. A vacuum pump 18 mounted on the outside of the separation device 12 and the water storage portions 14
Are connected via a pipe 17.

The pumps 18 cause the water storage sections 14, 16
Absorbs water inside and releases it to the outside.

On the other hand, the floc having a small water content is discharged from the separating device 12 to an external container car or a storage tank.

Inside the waste mud separator 12, an outer separating portion 12a for separating the floc into mud and water is stored in the water storage portion 14 of the outer separating portion 12a. To do so, a mesh or slit type is adopted.

Further, the inner separating portion 13 also employs a mesh or slit type as described above. Then, the water is stored in the water storage unit 16.

In the separator 12 of the present invention, since the set position is higher than the reaction tank 2, the sedimentation speed of the mud is high during the flocks pushed up by the vacuum pump 1, so that the separation of the mud and the water is proportional. It will be faster, so the water storage 12
a, The water storage in 16 is also accelerated.

[0025]

According to the first aspect of the present invention, the ground-improved waste mud is fed into a coagulation reaction tank via a vacuum pump to be floc, and the floc is rotated by a motor. It is a simple muddy water separator that removes moisture while moving it by using the rotation of the drum between a vacuum pump attached to the outer peripheral part of the outer peripheral part and removes the moisture-removed floc through the vacuum pump. It can be manufactured in a compact form and can therefore be installed in very narrow spaces.

Further, in the present invention, the probability of removing the moisture of the transported floc is almost the same as that of the conventional separation device.

According to a second aspect of the present invention, the ground improvement waste mud is fed into a coagulation reaction tank via a vacuum pump to form flocs, and the floc is sent to a mud separation apparatus which is set at a higher position than the reaction tank. Separated into mud and water through a storage unit inside, the water is stored in the water storage unit, and the water is discharged by a vacuum pump mounted on the outside of the separation device. Since it is a simple muddy water separation device that can be discharged to an external container car or mud storage tank, the speed of separating mud and water is significantly faster than in the past and the work efficiency is improved.

The third aspect of the present invention is a simplified muddy water separating apparatus in which two wastewater storage sections for storing only water contained in flocs are provided inside the wastewater separating apparatus, so that the speed of removing water is remarkably increased. Workability was improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of a simplified muddy water separation device of the present invention.

FIG. 2 is a system diagram of a device related to the device of FIG. 1;

[Explanation of symbols]

 a Wastewater separation device 1, 7 Vacuum pump 2 Reaction tank 3, 17 Pipe 4 Coagulant tank 5 Drum 6 Motor 8, 10 Pit 9 Vacuum pump 11 Hose 12 Separation tank 12a, 13 Separation unit 14, 16 Water storage unit 15 Storage unit 18 pump

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) B01D 33/58 B01D 33/36 C02F 1/00 1/52 F term (reference) 4D015 BA19 BA22 BA29 BB05 CA10 EA35 4D026 BA03 BB03 BB05 BC21 BC26 BC29 BD05 BE07 BF20 BF21 4D059 AA09 BE04 BE11 BE14 BE15 BE54 CB01 4D062 BA19 BA22 BA29 BB05 CA10 EA35

Claims (3)

[Claims] 1. A ground improvement waste muddy water is fed into a flocculation reaction tank via a vacuum pump to form flocs, and the flocs are mounted on a mesh or slit type waste muddy separation drum rotated by a motor and an outer peripheral portion of the drum. A simple type of muddy water separation apparatus, wherein water is removed while moving between the vacuum pump and the vacuum pump by utilizing the rotation of the drum, and the floc from which the water has been removed is discharged via a vacuum pump. 2. The ground improvement waste muddy water is fed into a flocculation reaction tank via a vacuum pump to form flocs, and the floc is sent to a muddy water separation device set at a higher position than the reaction tank.
The muddy water is separated into mud and water through a reservoir in the mud separator, the water is stored in the reservoir, and the water is discharged by a vacuum pump mounted on the outside of the separator. A simplified type muddy water separator, wherein the liquid is discharged from the separator to an external container car or a mud storage tank. 3. The simplified muddy water separation apparatus according to claim 2, wherein two water storage sections for storing only water contained in flocs are provided inside the waste muddy water separation apparatus.