JP2000160982A - Slurry pressure pipe jacking slurry treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slurry pressure pipe jacking slurry treating device capable of attaining low vibration, low noise, low cost and miniaturization. SOLUTION: This slurry pressure pipe jacking slurry treating device is provided with a slurry treating tank 5 for supplying slurry to a slurry pressurizing small bore pipe jacking device from a mud feed port; a mesh drum 9 having a ribbon screw 7 fixed inside, and disposed at the upper part of the slurry treating tank 5, inclining upward toward an outlet; a rotating device 11 for rotating the mesh drum 9; a slurry supply swivel pipe 13 connected to the mesh drum 9 and discharging return muddy water from the slurry pressurizing small bore pipe jacking device, to the mesh drum 9. Slurry 12 from a slurry pump is supplied to the slurry supply swivel pipe 13 and supplied to the mesh drum 9 therefrom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mud pressurizing propulsion applied to an excavator for press-propelling a buried pipe such as an embi pipe or a fume pipe from the starting shaft to a reaching shaft while recirculating mud water. The present invention relates to a muddy water treatment device.

[0002]

2. Description of the Related Art Conventionally, in a small-diameter pipe muddy water pressurized propulsion method, low-load-bearing pipes, for example, PVC pipes, which are indispensable for surface maintenance work, have been propelled. Indispensable.

[0003]

However, in the case of sewage treatment using small-diameter pipes, construction is often carried out in residential areas, and considerable vibration and noise are generated, adversely affecting the surrounding environment. ing. Further, even when the amount of discharged sludge is considerably small, a large and complicated muddy water treatment device must be used, which results in high costs. Therefore, an object of the present invention is to provide a muddy water treatment apparatus for muddy pressurized propulsion that can realize low vibration, low noise, low cost, and downsizing.

[0004]

SUMMARY OF THE INVENTION Therefore, the invention of claim 1 has been made, and a muddy water treatment tank for supplying muddy water from a mud hole to a muddy water pressurizing type small-diameter pipe propulsion device, and a screw are provided inside. It is fixed, is disposed at the upper part of the muddy water treatment tank, is inclined upward toward the outlet, is provided with an opening at an end, and has a mesh-shaped cylindrical portion, and a rotation for rotating the cylindrical portion. Muddy water treatment for muddy pressurization propulsion, comprising: an apparatus; and a supply pipe connected to the cylindrical part and for flowing reflux mud from the small-diameter pipe propulsion device with muddy water pressurization into the cylindrical part. Device.

The muddy water treatment apparatus for pressurizing muddy water of the present invention is preferably applied to the construction of gas pipes, underground electric wire pipes, and other propulsion pipes (buried pipes) having a relatively small diameter, in addition to sewers. However, it can also be used for construction of underground pipes having any purpose and diameter. The propulsion pipe includes a vinyl chloride pipe, a steel pipe, a fume pipe, a resin-con pipe, and the like.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a muddy water treatment system 1 for muddy pressurization and propulsion supplies muddy water from a mud feed port 3 to a muddy pressurized small-diameter pipe propulsion device 501 (see FIG. 7). Muddy water treatment tank 5, a mesh drum 9 (cylindrical portion) in which a ribbon screw 7 is fixed inside, and which is arranged at the upper part of the muddy water treatment tank 5 so as to be inclined upward toward the outlet, and rotate the mesh drum 9. It comprises a rotating device 11 and a wastewater supply swivel pipe 13 connected to the mesh drum 9 and configured to allow the reflux mud from the small-diameter pressurized-type small-diameter pipe propulsion device 501 to flow through the mesh drum 9. Sludge pump 518
The muddy water 12 (see FIG. 5) is supplied to the muddy water supply swivel pipe 13 and from there is supplied to the mesh drum 9.

Further, a ribbon screw 7 having no shaft center is fixed inside the mesh drum 9 by tight fitting, for example,
Although the ribbon screw 7 is formed as a frame and the mesh drum 9 is fastened with a torsion bar (not shown), the mesh drum 9 can be fixed in various modes such as bolt fixing and screw fixing. Therefore, when the mesh drum 9 is rotated, the ribbon screw 7 and the mesh drum 9 can be integrally rotated. Further, the residual mud 17 is urged to blow out from the opening 90 of the mesh drum 9.
Therefore, it is considered that the ribbon screw 7 preferably does not have a shaft core, the residual sludge 17 is unlikely to fall down, and the dewatering is performed smoothly. In addition, what has a shaft center may be sufficient. In order to reliably prevent the above-described squirt of the residual mud 17, a patch plate 20 is provided near the opening 90 of the mesh drum 9.

[0008] This mesh drum 9 is shown in FIG.
As shown in (b), an endless guide rail 92 having an opening 90 at the left end and a cylindrical shape serving as a roller bearing at the front end (left end) of the mesh drum 9 and having an annular groove 91 on the outer surface. 9 has endless guide rails 94 each having a disk-shaped annular groove 93 serving as a roller bearing at the rear end (right end). The material of the mesh drum 9 can be exemplified by the same material as the mesh of the vibrating sieve (sieve), and the size includes a normal drum size, but is not limited thereto. The angle of inclination of the mesh drum 9 can be appropriately set within a range that does not hinder the muddy water treatment.

The rotating device 11 is shown in FIGS.
As shown in (b), the drive motor 110 and the drive motor 1
10, a belt 113 having one end wrapped around the pulley 111 and the other end wrapped around a lower pulley 112, a one end wrapped around the pulley 112, and a driving roller 114 connected at the other end. And a belt 116 wound around the pulley portion 115. The above-described belt conduction portions are provided in a pair on the left and right. Drive roller 114
Is fitted in the annular groove 93, whereby the mesh drum 9 is rotated. However, although the number of the drive motors 110 is two, the design can be changed to one. further,
The rotating device 11 includes a pair of left and right driven rollers 117 rotatably fixed to the upper part of the muddy water treatment tank 5 at the lower front part of the mesh drum 9.
7 is fitted in the annular groove 91. The drive motor 1
It is preferable that the mesh drum 9 is provided with a speed reduction mechanism (not shown) such as a gear, and the rotation speed is reduced in advance to slowly rotate the mesh drum 9. That is, the ribbon screw 7 and the mesh drum 9 are preferably rotated by the rotating device 11 at low speed, for example, at approximately 10 rotations per minute. Although the rotating device 11 has shown an example in which a belt transmission mechanism using a belt and a pulley is employed, it is easy to use another driving force transmission structure such as a gear drive.

[0010] The muddy water treatment apparatus 1 for muddy pressurization and propulsion is designed according to various conditions such as construction site conditions, transportability, and road traffic law. In addition, in the event of clogging, if the end of the mesh drum 9 is left open,
If clogged with mud, it can be removed manually.

(Operation of Mud Water Treatment Apparatus 1 for Pressurizing Mud Water)
As shown in FIG. 1 and FIG. 2, the muddy water 12 from the muddy water pressurizing small-diameter pipe propulsion device 501 flows into the mesh drum 9 from the muddy water supply swivel pipe 13. The drive roller 114 is driven by the drive motor 110 and the driven roller 117 is driven to rotate the mesh drum 9. In the mesh drum 9, the filtered muddy water 15 flows down to the muddy water treatment tank 5 through the lower surface of the mesh drum 9,
On the other hand, while the residual sludge 17 is rotating on the mesh drum 9, it is crawled up on the lower surface of the mesh drum 9 by the ribbon screw 7 and discharged from the upper opening 90. The muddy water 15 remaining in the muddy water treatment tank 5 flowing down from the mesh drum 9 may be mixed with sand or the like. Therefore, if necessary, remove the sand or the like and perform the propulsion again. It is a circulation plant that produces muddy water.

(Operation of the muddy water pressurizing type small diameter pipe propulsion device 501 to which the muddy water pressurizing and propulsion muddy water treatment device 1 of the embodiment is applied) An example in which the caliber pipe propulsion device 501 is used as a primary treatment device for returning muddy water will be described. The primary treatment is essential for muddy water treatment, and a secondary treatment is added as necessary. For example, in the case of silt clay or the like, in the case of silt clay or the like, a secondary step of dehydration and separation into a cake or a dehydration treatment may be required, but the secondary treatment may not be performed. That is, the secondary processing is optional.

(Overall Structure of Mud Pressurizing Small Diameter Pipe Propulsion Device 501) First connection body 530, excavator body 503, and second connection body 503
The muddy water pressurized small-diameter pipe propulsion device 501 to which the connecting body 531 is applied will be described with reference to FIGS. this is,
A small pilot pipe 502 made of metal (L = 600 mm, Φ60 mm as an example of the size: also referred to as a leading pipe), an excavator body 503, a first connection body 530, a second connection body 531, and a large-diameter propulsion pipe 505 (generally, L = 800mm
(About 1,000 mm, approximately 150 mm to 500 mm), a gantry 507 installed on the bottom surface 506 a of the starting shaft 506, a hydraulic main pushing device 508 fixed on the gantry 507, and a pilot pipe 502. Detector 50 including a transit for measuring the propulsion status of
9, a hydraulic unit 510 installed on the ground to drive the main pushing device 508, and a mud pressurized propulsion that is installed on the ground and adopts mud as a working fluid, pressurizes the mud, and refluxes the mud. The system includes a muddy water treatment apparatus 1 and a central operation panel 512 including a logical operation circuit for controlling the state of pressurized muddy water, operation buttons, a display unit, and the like. Further, a mud pump 513 is provided at the outlet of the mud treatment apparatus 1 for mud pressurization and propulsion, and a rigid mud pipe 514 (for example, a steel pipe can be used, but a hard polyvinyl chloride pipe or the like may be used). The muddy water can be supplied to the mud feed pump 513 with the intermediary of 515. When the muddy water treatment device 1 for muddy water pressurization is once stopped at the time of additional connection of the propulsion pipe 505, the shaft shaft bypass device 515 takes time until the formed muddy water is settled and the muddy water is stabilized again. This is for always maintaining the flow rate even when the pipe 505 is additionally connected. On the other hand, the earth and sand excavated by the excavator body 503 are combined with the first connector 530, a rigid mud pipe 517 (for example, a steel pipe can be used, but a hard polyvinyl chloride pipe may be used), a shaft bypass device 515, The muddy water can be discharged to the muddy water treatment device 1 for muddy water pressurization and propulsion via the muddy water discharge pump 518 and returned.

The shaft bypass device 515 is a device for changing the flow of the muddy water sent from the muddy water treatment device 1 for pressurizing and driving muddy water on the ground. The flow of the mud can be reversed or the mud can be immediately returned (returned) from the shaft bypass device 515 without returning the mud to the machine body 503. The shaft shaft bypass device 515, the mud pump 513, and the mud pump 518 are usually provided with the starting shaft 506
It is more efficient to install it inside, but if it does not fit, it can be installed on the ground. Mud water treatment device 1 for mud pressurization
Mainly supplies muddy water to the machine body 503, receives the muddy water and the earth and sand excavated by the machine body 503 from the machine body 503, separates the muddy water and earth and sand, and excavates the separated muddy water. It is supplied to the machine main body 503 by being refluxed (recycled), and has a specific configuration as described above. The muddy water treatment device 1 for pressurizing muddy water is constantly operated during operation, but when a slurry pump (not shown) works to pump muddy water, the muddy water can enter the mesh drum 9 and be processed.

A mud flow meter 519 is installed in a mud pipe 517 close to the mud treatment apparatus 1 for mud pressurization and propulsion, and a signal measured therefrom or a main pushing device 508, a pressure transmitter (not shown), etc. Signals of the central control panel 51
2, and various signals such as drive signals to the muddy water treatment device 1 for muddy water pressurization and propulsion, the main pushing device 508, a hydraulic cylinder (not shown), a hydraulic unit 510, and the like are output from the central operation panel 512. Configuration. In addition, the propulsion pipe 505
Examples of the type include various kinds of pipes such as a vinyl chloride pipe, a steel pipe, a fume pipe, and a resin pipe. FIG. 5 shows an example of the initial stage of the propulsion process of the pilot pipe 502. The pilot pipe 502 and the propulsion pipe 505
Each has a structure (in some cases, a thread is cut on a peripheral surface of an end portion) that can be connected in a detachable manner in the axial direction.

As shown in FIG. 6, an automobile 520 on the ground
Are loaded with a first connection body 530, a second connection body 531, a pilot pipe 502, a propulsion pipe 505, an excavator body 503, a generator 521, a crane 522, a tool 523, and the like. ing. The crane 522 includes a pilot pipe 502, a propulsion pipe 505, a first connector 530,
The excavator body 503, the second connecting body 531 and the like
6 and propelled by the main pushing device 508 while connecting the pilot pipe 502 in the first stage, and propelling by connecting the excavator body 503 to the pilot pipe 502 in the second stage,
Next, the propulsion pipe 505 and the first connecting body 5
30 and the second connector 531 can be propelled while being added.

(Operation of Small-Diameter Pipe Propulsion Apparatus 501 for Pressurized Water) The operation of the small-diameter pipe propulsion apparatus 501 for pressurized water will be mainly described. The pilot pipe 502 is attached to the main pushing device 508, and a hydraulic pressure is supplied from the hydraulic unit 510 to the main pushing device 508 based on a command of the central operation panel 512 shown in FIGS. (Not shown), the main pushing device 508 is driven, and the pilot tube 502 is propelled while rotating. After the pilot pipe 502 is pushed in, the pilot pipe 502 is detached from the original pushing device 508, and the original pushing device 508 is retracted. Pilot tube 502
And connected to the original pressing device 508. Thus, the propulsion of the pilot pipe 502 is repeated, and the arrival shaft 585 is reached.
(See FIG. 13). At this stage, the muddy water is not pressurized by the muddy water treatment device 1 for muddy pressurization promotion.

After completing the first step, the connection between the pilot tube 502 and the main pushing device 508 is released, and
The original pushing device 508 is retracted. A pilot pipe fitting (not shown) is connected to the rear part of the pilot pipe 502, and the excavator body 503 in FIG.

As described above, when the connection of the excavator body 503 is completed, the command from the central operation panel 512 in FIG.
The muddy water treatment apparatus 1 for muddy water pressurization, the mud pump 513 and the mud pump 518 are driven, and the mud is sent to the excavator body 503 via a mud pipe 514, a mud pipe 517 and a swivel fitting (not shown). The mud is sent and discharged, and is returned to the muddy water treatment device 1 for pressurizing and driving muddy water. The muddy water treatment device 1 for pressurizing muddy water performs processing such as separation of muddy water and earth and sand, and circulates the muddy water in a front chamber (not shown) of the excavator body 503. At this time, in order to smooth and stabilize the propulsion, the central operation panel 512 controls the power of the mud pump 513 and the mud pump 518 on the basis of the output of the mud flow meter 519 and the like, so that the muddy water is controlled. Optimized flow rate.

When the start of the excavator body 503 is completed, the shaft bypass device 515 is switched according to a command from the central operation panel 512, and the muddy water is sent to a mud feeding system and a mud discharging system (not shown). The reflux is stopped, and the insides of the mud feeding system and the mud discharging system are cleaned appropriately. If the specific gravity of the mud becomes higher, a negative pressure is applied to the mud pump 518 rather than the sedimentation speed in the pipe, and the mud in the pipe is pulled, or an air inlet is provided on the mud feeding side of the shaft bypass device 515 to discharge the mud. If air is injected from the mud feeding system while operating the pump 518, the inside of the pipe is cleaned. Generally, even when muddy water remains in the pipe, when the connection between the excavator main body 503 and the main pushing device 508 is cut, the muddy water flows out into the starting shaft 506. After that, the excavator body 503 and the main pushing device 508 are dissociated, and the main pushing device 508 is moved backward. The first connector 530 and the front end of the propulsion pipe 505 are connected to the rear end of the excavator body 503, and the first connector 530 and the propulsion pipe 505 are further connected.
Is connected to the original pushing device 508 via an attachment (not shown).

The muddy water pressurizing propulsion step is performed by a propulsion pipe 50
5 and the first connecting body 530, while subsequently adding the second connecting body 531 and the propulsion pipe 505 one after another,
Repeat until reaching shaft 585. In the present embodiment, each of the 50 propulsion pipes 505 and the first connector 53 is used.
The 0 and the second connector 531 are connected, but the number of connections can be appropriately selected according to the scale of the construction. In addition, a screw portion is provided around both ends of the propulsion pipe 505 so that connection is possible. In the case of blockage or the like, the muddy water may flow backward.

(Construction procedure of muddy pressurized small-diameter pipe propulsion method) Next, the construction procedure of the muddy pressurized small-diameter pipe propulsion method of the embodiment will be described with reference to FIGS. here,
Muddy water pressurized small diameter pipe propulsion device 50 shown in FIGS.
Although an example in which 1 is applied is shown, various modifications are also possible.

Construction of the starting shaft 506 and the reaching shaft 585 (step S100: see FIG. 8) In order to build the starting shaft 506 shown in FIG. 9, first, FIG.
As shown in FIG. 0, the lower manhole frame 571 having the water stop 572 is swirled and pressed into the excavator 57 by the swirling press machine 570.
Excavate earth and sand in 3. The intermediate manhole frame 574 is connected to the lower manhole frame 571 by welding. The intermediate manhole frame 574 is press-fitted by the press-fitting machine 570, and the excavator 573 excavates earth and sand. A steel cylindrical connecting casing 575 is detachably connected to the intermediate manhole frame 574. The underwater concrete 576 is cast so that the bottom surface 506a is formed at the bottom of the lower manhole frame 571.

As shown in FIG. 9, the starting shaft 506 thus constructed has a lower manhole frame 571 in which a steel blade member 579 is attached to the lower end of a cylindrical reinforced concrete 578.
Are fitted and fixed, and a steel cylindrical member 580 is fitted and fixed to the upper end edge. At the lower end of the blade-like member 579, a plurality of saw teeth are arranged circumferentially. The lower end of the reinforced concrete 578 has a tapered inner peripheral surface in order to reduce the resistance at the time of press-fitting. The respective elements are integrally manufactured in a manhole manufacturing process to form a lower manhole body 571. Since the water stop 572 to which the filter and the rubber are attached is attached to the lower manhole frame 571 in advance, when starting the small diameter pipe propulsion method,
Water and earth and sand do not penetrate into the manhole, and chemical liquid injection work is not required, and smooth small-diameter pipe propulsion work can be performed. The intermediate manhole frame 574 is formed by fitting steel cylindrical members 582 and 583 to upper and lower ends of a cylindrical reinforced concrete 581, respectively. Each of the above elements is integrally manufactured in a manhole manufacturing process to form an intermediate manhole body 574. It should be noted that these are disclosed in detail in Japanese Patent Application Laid-Open No. 9-6020, and reference is made thereto. The inner diameter of the starting shaft 506 is φ1,500 mm (in the first embodiment, a range of approximately φ1,500 to 2,010 mm is preferable). The construction of the reaching shaft 585 is performed in the same manner, but a conventional liner plate method may be used.
The inner diameter can also be set arbitrarily.

Surveying (S 101: see FIG. 8) The pipeline center is marked near the starting shaft 506.
Also, the propulsion plan height and the machine installation height position are marked by level survey.

Installation of the main pushing device 508 and the muddy water treatment device 1 for muddy water pressurization and propulsion (S102: see FIG. 8) The gantry 507 and the main pushing device 508 are installed in the starting shaft 506 at the planned gradient and in the planned direction. That is, the main pushing device 508 is provided in the starting shaft 506 in the direction of the planned propulsion pipe center.
And hang it down. Fine adjustment is made to the marked position on the inner wall surface of the manhole with a spacer (not shown) or the like, and the original pressing device 508 is temporarily installed. The pipe gradient is measured by a level (not shown) or the like, and the main pressing device 50 is used.
Align the pipe core of No. 8 with the plan promotion pipe center. After the installation of the main pushing device 508 is completed, the gantry 507 and the main pushing device 5
08 is sufficiently fixed, and the gantry 507 and the manhole wall are fixed by welding or jacking. In addition, the original pushing device 508
The reaction force is taken from the manhole wall. Here, the steps of mirror cutting and chemical liquid injection are unnecessary. As described above, the water stop 5
This is because 72 is directly attached to the manhole frame.

Pilot pipe propulsion work (S103: FIG. 8)
As a first step of the propulsion, the pilot pipe 502 is propelled on the planned propulsion line by a consolidation method using a direction correcting device (not shown) (see FIGS. 11 and 12). Promotion is the starting shaft 5
From 06, the pilot head 502a is connected to the read head 502a and the pilot tube 502 is connected to the propulsion while rotating. The direction is confirmed by visually checking the lead lamp in the read head 502a with the level or the detector 509 from behind the original pressing device 508. If the pilot tube 502 is shifted from the planned promotion and the direction needs to be corrected, the rotation of the pilot tube 502 is stopped and the read head 5 is moved in the correction direction.
If the tip of 02a is aligned and the propulsion is performed to restore the planned propulsion, the propulsion is performed while rotating the pilot tube 502.

[0028] Propulsion pipe propulsion work and muddy water pressurization work (S10
4: See FIG. 8) As the second step of the propulsion, the pilot pipe 50 of the first step is used.
After completion of the arrival at the reaching shaft 585, a pilot tube fitting (not shown) is connected to the rear end of the last pilot tube 502 in the starting shaft 506 among the pilot tubes 502 penetrated in the previous process. Then, the excavator main body 503 is connected to the rear end of the pilot pipe 502, the rear end of the excavator main body 503 is connected to the main pushing device 508, and the muddy water is discharged and discharged by the muddy water treatment device 1 for muddy water pressurization promotion. Mud is performed, and the excavator main body 503, the first connection body 530, and the second connection body 531 are propelled while returning muddy water (see FIGS. 13 to 15).
On the other hand, on the reaching shaft 585 side, the pilot pipe 502 and the like are collected. Thus, the propulsion pipe 505 and the first connector 53
0, propulsion is performed while adding the second connector 531. Then, about 50 propulsion pipes 505 and the first connection body 530
And the second connector 531 is propelled. Excavator body 503
Is collected on the arrival shaft 585 side.

The first connector 530 and the second connector 53
Removal work such as 1 and cleaning inside the pipe etc. (S105: see FIG. 8) The first connecting body 530 and the second connecting body 531 are moved to the starting shaft 50.
6 and disassembled (see FIG. 16). Main pushing device 50
8 is removed, a mortar for height adjustment is cast, and an invert 577 is installed (see FIG. 17).

Upper Manhole Structure (S106: See FIG. 8) Upper manhole structure 5 on intermediate manhole structure 574
Attach 87. That is, the adjusting unit 588 and the side lump 58
9. A receiving frame 590, a lid 591 and a step 592 are attached. FIG. 17 shows the construction thus constructed. After the connection between the connecting casing 575 (see FIG. 9) and the intermediate manhole skeleton 574 is released and backfilling of earth and sand is performed, the connecting casing 575 is separated and removed from the intermediate manhole skeleton 574. Manhole 595
Complete construction work.

(Effects of the Embodiment) According to the above-described muddy water treatment apparatus 1 for pressurizing and driving muddy water, the following effects are obtained. In the case of sewer surface maintenance using a small-diameter propulsion pipe 505,
It is often installed in residential areas, but can significantly reduce vibration and noise, and does not adversely affect the surrounding environment. Further, it is suitable when the amount of sludge is considerably small, and low cost can be realized. Further, the work space can be reduced by downsizing.

In this embodiment, the applicable pipe type is a PVC pipe, a steel pipe, a ceramic pipe, a fume pipe, a plastic pipe, or the like. Applicable pipe diameter is approximately φ150 ~ φ300mm, effective length 800 ~ 1,000mm, soil is a stagnant sand layer, gravel layer,
Clay layer, silt layer, etc. N value is N5 to N20, water pressure is P = 0.6 to 0.7 kg / cm ² , and water permeability K = 1.
0 ^-2 / sec, maximum gravel diameter less than 20% at 30mm, gravel ratio 2
Less than 0%, maximum propulsion distance 60m-100m, thrust 30
ton, rotational force 300Kg ・ m, Hori Susumu machine body (lead conductor)
The weight is 200 kg (φ200 mm). As an example of the construction, the diameter of the reaching shaft 585 (see FIG. 11) is φ900 m.
m, the diameter of the starting shaft 506 (see FIG. 11) is φ1500
mm and the like. Further, as an example of the size, the length of the propulsion pipe 505 is 1,000 mm, the diameter is 216 mm,
The length of the first connector 530 and the second connector 531 is 1,0.
50 mm and a diameter of 193 mm.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and may be implemented in various technical forms without departing from the technical spirit of the present invention. Of course, changes can be made.
For example, the muddy water treatment device 1 for muddy pressurized propulsion of the present embodiment
Was applied to the mud pressurized small-diameter pipe propulsion device 501,
A muddy water pressurized small-diameter pipe propulsion device having an appropriate structure can be adopted instead of or in addition to the muddy water pressurized small-diameter pipe propulsion device 501 without departing from the gist of the invention.

[0034]

According to the first aspect of the present invention, it is possible to provide a muddy water treatment device for muddy pressurized propulsion which can realize low vibration, low noise, low cost and downsizing, and its industrial utility value is great. .

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing an internal structure of a muddy water treatment device 1 for muddy pressure propulsion of the present embodiment.

FIG. 2 is a front view showing an appearance of a muddy water treatment apparatus 1 for muddy water pressure promotion according to the present embodiment.

FIG. 3A is a front view of a mesh drum 9 of the muddy water treatment device 1 for pressurizing and driving muddy water, and FIG.

4A is a right side view of the mesh drum 9 and the rotation device 11 as viewed from the arrow X in FIG. 2, and FIG. 4B is a view of the mesh drum 9 and the rotation device 11 as viewed from the arrow Y in FIG. It is a left side view.

FIG. 5 is a diagram illustrating a small-diameter pipe propulsion device 501 according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional front view of the entire configuration including the above.

FIG. 6 is a plan view of the same.

FIG. 7 is an enlarged view of a small-diameter pipe propulsion device 501 of a muddy water pressurization structure near a starting shaft 506.

FIG. 8 is a process chart in the muddy water pressurization type small diameter pipe propulsion method.

FIG. 9 is a partial cross-sectional front view of a manhole frame with a connection casing 575 attached.

FIG. 10 is a front view of a construction state in which a swivel press-fitting machine 570 is performing swivel press-fit of a manhole frame.

FIG. 11 is a partial cross-sectional front view showing an installation process of a main pushing device 508.

FIG. 12 is a partial sectional front view showing an initial stage of a pilot pipe propulsion process.

FIG. 13 is a partial cross-sectional front view showing the final stage of the pilot pipe propulsion step.

FIG. 14 is a partial cross-sectional front view showing a propulsion pipe propulsion process.

FIG. 15 is a partial cross-sectional front view showing the end of the propulsion pipe propulsion process.

FIG. 16 is a partial cross-sectional front view showing a recovery step of the connector 530 and the like.

FIG. 17 is a partial cross-sectional perspective view of the manhole 595 in a state after the connection casing 575 has been removed.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 muddy water treatment device for pressurized muddy water 3 muddy water outlet 5 muddy water treatment tank 7 ribbon screw 9 mesh drum 11 rotating device 12 wastewater 13 wastewater supply swivel pipe 15 muddy water 17 residual mud 20 backing plate 90 opening 91 annular groove 92 endless guide rail 93 annular groove 94 endless guide rail 110 drive motor 111 pulley 112 pulley 113 belt 114 drive roller 115 pulley section 116 belt 117 driven roller

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tomoyuki Arakawa 1-8-16 Matsusakae-cho, Kariya-shi, Aichi FJ-term within Jikken Kogyo Co., Ltd. 2D054 AC05 AC18 BA15 DA12

Claims (1)

[Claims] 1. A muddy water treatment tank for supplying muddy water from a mud hole to a muddy water pressurizing small-diameter pipe propulsion device, and a screw is fixed inside the muddy water treatment tank. A tubular portion provided with an opening at an end thereof and provided with a mesh, and a rotating device for rotating the tubular portion; and a muddy pressurized small-diameter pipe propulsion connected to the tubular portion. A muddy water treatment device for muddy pressurization and propulsion, comprising: a supply pipe for flowing muddy water returned from the device into the cylindrical portion.