JPWO2017187714A1 - Mobile mud dewatering device and mud dewatering method - Google Patents

Abstract

Mud water suction pump 11, which is connected to the backhoe 2, the muddy water suction pipe 3 attached to the bucket 2a, and the muddy water suction pipe 3, and sucks muddy water from the muddy water suction pipe 3 inserted in the mud A moving mud dewatering device comprising a vacuum pump 12. The muddy water suction pipe 3 has a water permeation hole 3a at a portion inserted into the mud, and a separate screen 3b covering the periphery thereof is provided, and a press-in cone 3c to be pressed into the mud is provided at the tip. While the muddy water is sucked by the muddy water suction pump 11 from the muddy water suction pipe 3 pressed into the mud by the bucket 2a and pressed in by the pressing cone 3d, the process of vacuum sucking the air by the vacuum pump 12 is repeated every time the backhoe 2 is moved. .

Description

  The present invention relates to a mobile mud dewatering device and a method for dewatering mud using the mobile mud dewatering device.

In Patent Document 1, a method for improving the ground is proposed.
In this method, saturated groundwater is pumped by negative pressure propagation using SWP (super well point), so that the target area is mainly concentrated and the water level drops can be expected to create an unsaturated zone. After that, using SWP's vacuum pump or vortex pump, vacuum evaporation is promoted in the range of the unsaturated zone to remove water and remove volatile substances such as VOCs (volatile organic compounds) and oil from the ground Promote ground improvement and soil remediation.
The basics of this ground improvement method are methods of forced drainage of ground water by vacuum suction to form an unsaturated zone to promote vacuum vaporization and promote dehydration and drying.

Patent No. 4114944 (Unexamined-Japanese-Patent No. 2007-303095)

By the way, when the muddy water and mud were sucked by the small SWP, the sludge stuck in a compact form in the form of dumpling around the screen, and it was not possible to suck the gravity water etc. on the back surface.
In natural ground, even if negative pressure suction after cleaning does not clog, colloidal particles will not be clogged by vacuum suction of artificially artificial mud such as high water ratio (e 100 100 to 1000%). It moved around and stuck around the screen, causing clogging.

  An object of the present invention is to provide a movable mud dewatering device which copes with clogging.

In order to solve the above problems, the invention according to claim 1 is:
A moveable mover comprising a moveable member;
A muddy water suction pipe attached to the movable member;
A muddy water suction pump connected to the muddy water suction pipe, for sucking muddy water from the muddy water suction pipe inserted into the mud, and a vacuum pump for vacuum suctioning air;
Mobile mud dewatering device.

The invention according to claim 2 is
A mobile mud dewatering device according to claim 1, wherein
The muddy water suction pipe is characterized in that a portion to be inserted into the mud has a water permeable hole, a separate screen covering the periphery is provided, and a press-in cone pressed into the mud at the tip is provided.

The invention according to claim 3 is
A mobile mud dewatering device according to claim 1, wherein
The mud water suction pipe may be connected to a compressor for supplying air.

The invention according to claim 4 is
A mobile mud dewatering device according to claim 1, wherein
The mobile machine is a backhoe including a bucket as the movable member, and the muddy water suction pipe is fixed to the bucket.

The invention according to claim 5 is
A mobile mud dewatering device according to claim 1, wherein
A high frequency vibro is attached to the muddy water suction pipe.

The invention according to claim 6 is
Using the movable mud dewatering apparatus according to claim 1, the muddy water suction pump sucks muddy water from the muddy water suction pipe inserted in the mud by the movable member, and the vacuum pump suctions air in a vacuum A mud dewatering method is repeatedly carried out each time the process is moved the mobile unit.

The invention according to claim 7 is
A method of dewatering mud, wherein the mud is compacted by pressing the muddy water suction pipe into the mud with the press-in cone at the end using the movable mud dewatering device according to claim 2.

The invention according to claim 8 is
The movable mud dewatering apparatus according to claim 3, wherein the movable member pulls up the muddy water suction pipe from the muddy soil and supplies the compressed air to the muddy water suction pipe by the compressor, thereby adhering to the separate screen It features a mud dewatering method that blows away the mud.

The invention according to claim 9 is
The separation screen is clogged in a state in which the muddy water suction pipe is pulled up from the mud by the movable member using the movable mud dewatering device according to claim 5, and the muddy water suction pipe is vibrated at high frequency by the high frequency vibro. The present invention is characterized by a mud dewatering method in which the soil particles are vacuum suctioned by the vacuum pump.

  According to the present invention, clogging can be easily dealt with by moving the apparatus and dewatering it.

It is a side view of the principal part fracture which showed the structure of one Embodiment of the movable mud dewatering apparatus to which this invention is applied, and showed the outline | summary of mud dewatering operation | work. It is an enlarged view of the muddy water suction pipe part of FIG. It is a top view which shows the dewatering earth pit of another installation. It is a longitudinal cross-sectional view of the dewatering earth pit of FIG. It is a schematic plan view which shows the case of the mud carrier of Embodiment 2. FIG. It is a principal part longitudinal cross-sectional view of a modification. It is a schematic side view which shows the case of the soil disposal equipment of Embodiment 3. FIG. It is a schematic plan view which shows the case of the clay treatment system of Embodiment 4. FIG. It is a side view of the principal part fracture of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 shows the configuration of an embodiment of a mobile mud dewatering apparatus to which the present invention is applied, 1 is a mud pit, 2 is a backhoe (mobile unit), 3 is a mud suction pipe, 4 is a suction hose, 5 is a suction hose A switching valve, 6 is a suction hose, 7 is a pressure supply hose, 11 is a mud water suction pump, 12 is a vacuum pump, 13 is a suction hose, 14 is a compressor, and 15 is a generator.

  As shown in the figure, mud is stored in the mud pit 1 and the mud water suction pipe 3 attached to the bucket 2 a which is a movable member of the backhoe 2 which is one of the mobile units moving on the ground is the mud pit 1. It is inserted by pressing into mud.

  The muddy water suction pipe 3 has a diameter of about 100 mm, and as shown enlarged in FIG. 2, the muddy water suction pipe 3 has a large number of water permeable holes 3a formed on the tip side, and the periphery thereof is a separation screen 3b by a filter. It is covered, and the periphery is covered with a punching metal pipe 3c having a diameter of about 110 mm as a protective pipe.

Further, the tip of the muddy water suction pipe 3 is obliquely cut, and a press-in cone 3d for closing the open end and guiding the press-in is attached.
The mud water suction pipe 3 described above is fixed to the tip of the bucket 2 a of the backhoe 2 by a fixing band 3 e.

A switching valve 5 is connected to the suction hose 4 connected to the muddy water suction pipe 3 on the ground side. A mud water suction pump 11 on the ground is connected to a suction hose 6 connected to the switching valve 5. A suction hose 13 connected to the vacuum pump 12 on the ground is connected to the mud water suction pump 11.
Thus, the muddy water suction pipe 3 has the same configuration as the small SWP.

Further, a compressor 14 mounted on a vehicle on the ground is connected to the pressure supply hose 7 connected to the switching valve 5.
The mud water suction pump 11 and the vacuum pump 12 are electrically connected to a generator 15 installed on the ground.

As shown in FIG. 1, the movable mud dewatering device having such a configuration causes the bucket 2 a to press the muddy water suction pipe 3 into the mud of the mud pit 1 with the press-in cone 3 d. Thereby, the mud under the press-in cone 3d is consolidated by pressure.
Then, as shown in FIG. 2, the water in the mud is squeezed out and separated into the consolidated soil and the floating water by the compacting pressure of the mud by the press-in cone 3d.

  Subsequently, while the muddy water is sucked by the muddy water suction pump 11 from the muddy water suction pipe 3 pressed into the mud, the process of vacuum suction of air by the vacuum pump 12 is repeated every time the backhoe 2 is moved.

Here, in the muddy water suction pipe 3, the muddy water in the muddy soil is sucked through the small holes of the punching metal pipe 3c, the separate screen 3b, and the water permeable holes 3a by the suction of the muddy water suction pump 11. Through the switching valve 5 and the suction hose 6, the mud water suction pump 11 sucks and drains.
Further, water in the mud water flows into the mud water suction pipe 3 by vacuum suctioning and evacuating the air in the mud water suction pipe 3 by the vacuum pump 12.

In the above, when the separate screen 3b is clogged, the muddy water suction pipe 3 is pulled up, the sticking scale is removed in the mud pit (see FIG. 3 and FIG. 4), and the switching valve 5 is switched as shown in FIG. The compressed air of the compressor 14 reversely sprays the separate screen 3b to recover the clogging.
In addition, the mesh eyes are changed in soil conditions.

As described above, by attaching the muddy water suction pipe 3 to the bucket 2a of the backhoe 2, the muddy water suction pipe 3 can be pressed into the muddy soil, and the muddy soil is partially pressurized to reduce the movement of colloids as much as possible. It is possible to increase the suction efficiency by suctioning the water / drops in a spot.
Moreover, since the muddy water suction pipe 3 with the separate screen 3b can be easily moved, it sucks only the broom water first, then sucks the loose place, and removes the glue attached to the separate screen 3b each time it moves. The entire water content can be removed and dehydrated.
Then, by pressing in the muddy water suction pipe 3 with the press-in cone 3d, it is possible to aim for, for example, a cone index of about 200, leaving only the core of the viscous soil.

  As described above, according to the movable mud dewatering apparatus of the embodiment, since the muddy water suction pipe 3 connected to the muddy water suction pump 11 and the vacuum pump 12 is attached to the bucket 2 a of the backhoe 2, the backhoe 2 is moved to move the mud pit 1 Clogging can be easily dealt with by dewatering the mud inside.

  3 and 4 show a dewatering soil pit 21 of a separate facility, and as shown in the figure, scale peeling plates 22 are provided on opposite sides in the dewatering soil pit 21 so that the scale peeling plates 22 can be obtained. A semicircular cutout 23 is formed in the center.

First, the muddy water suction pipe 3 attached to the bucket 2 a of the backhoe 2 is put into the dehydrated soil pit 21 and moved horizontally to remove the semicircular peeling off of the punching metal pipe 3 c on the outside of the muddy water suction pipe 3 Apply to part 23.
Then, the muddy water suction pipe 3 is moved up and down, and while sucking with the muddy water suction pump 11, the glue stuck to the outside of the punching metal pipe 3c is peeled off by the semicircular peeling portion 23, and the dewatered soil pit 21 is It can be scraped off.

Second Embodiment
FIG. 5 shows the case of the mud carrier according to the second embodiment. As in the first embodiment, 3 is a muddy water suction pipe, 4 is a suction hose, 11 is a muddy water suction pump, 12 is a vacuum pump, and 13 is a suction hose. 14 is a compressor, 15 is a generator, 21 is a dewatered soil pitch, 22 is a scale stripping board, 23 is a stripping section, 31 is a towing vessel, 32 is a towline, 33 is a barge, 34 is a mud The reference numeral 35 is a mud water tank, 36 is a cooling water tank, 41 is a rail, 42 is a dewatering robot (mobile unit), 43 is an arm, 44 is a hydraulic unit, and 45 is a control panel.

As shown in the drawing, the dredger 33 which is towed to the towing ship 31 by the towline 32 is provided with a dewatered soil pitch 21, a mud tank 34, a muddy water tank 35, and a cooling water tank 36. A pair of rails 41 are laid along. A dewatering robot 42, which is a moving machine that moves horizontally along the rails 41, is mounted, and a mud water suction pipe 3 is attached to an arm 43 of the dewatering robot 42.
In addition, the muddy water suction pump 11, the vacuum pump 12, the compressor 14, the generator 15, the hydraulic unit 44, and the control panel 45 are installed on the boat 33.

  In such a mud carrier, a mud suction pipe 3 is attached to the arm 43 of the dewatering robot 42, which moves horizontally along the rail 41 on a base ship 33 provided with a dewatered soil pitch 21, a mud tank 34, a muddy water tank 35, and a cooling water tank 36. And dewater the mud as described above with the control board 45.

  As described above, according to the mud carrier equipped with the movable mud dewatering device of the second embodiment, the arm 43 of the dewatering robot 42 moving horizontally along the rail 41 on the barge 33 is connected to the muddy water suction pump 11 and the vacuum pump 12 Since the muddy water suction pipe 3 is attached, it is possible to easily cope with clogging by dewatering the mud in the mud tank 34 by horizontally moving the dehydrating robot 42 along the rail 41 on the mounting vessel 33. .

(Modification)
FIG. 6 shows a modification, and as in the first embodiment, 3 is a muddy water suction pipe, 3a is a water transmission hole, 3b is a separate screen, 51 is a high frequency vibro, and 52 is a band.

As illustrated, the high frequency vibro 51 is attached to the muddy water suction pipe 3 by a band 52.
Here, in order to prevent clogging of the separate screen 3b, the mesh eyes are suctioned with a large size (roughly) of about 1 mm → 3 mm.

First, the muddy water suction pipe 3 is inserted into the mud, and the muddy water suction pipe 3 is suctioned by the muddy water suction pump 11 and vacuum suctioned by the vacuum pump 12 to suction the top water as illustrated. It can be removed, and the next loose sticky soil can also be removed by suction.
Subsequently, since the insertion of the tip of the muddy water suction pipe 3 is stopped by the hard viscous soil and air can not be drawn into the water permeable holes 3a, the hard viscous soil as the core remains as a core. be able to.

  Then, the muddy water suction pipe 3 is vibrated at high frequency by driving the high frequency vibro 51, and the muddy water suction pipe 3 is suctioned by the muddy water suction pump 11 and vacuum suctioned by the vacuum pump 12 to adhere to the separate screen 3b in a sludge form. The particles can be aspirated to prevent clogging.

(Embodiment 3)
FIG. 7 shows the case of the soil disposal equipment according to the third embodiment. As in the first embodiment, 2 is a backhoe, 3 is a muddy water suction pipe, 3b is a separate screen, 4 is a suction hose, 11 is a muddy water suction pump. Reference numeral 61 is a soil pit, 62 is a sand master (vibrating sieve), 63 is a mud tank, and 64 is a dump truck.

As shown, the tip of the muddy water suction pipe 3 attached to the arm 2 b of the backhoe 2 by the attachment 2 c is inserted into the soil in the soil pit 61.
Further, a sand master 62 which is a vibrating screen is provided below the muddy water suction pipe 11. The sand master 62 is disposed on a mud tank 63 installed on the ground.

As described above, according to the soil disposal facility provided with the movable mud dewatering device of the third embodiment, the muddy water suction pipe 3 having the tip inserted into the soil in the soil pit 61 is sucked by the muddy water suction pump 11 and the sand is sucked. The sludge grains screened by the master 62 are recovered.
Then, the collected sludge particles are stacked on a dump truck 64 and carried to a water treatment plant of another facility.

(Embodiment 4)
8 and 9 show the case of the clay treatment system according to the fourth embodiment. As in the first embodiment, 2 is a backhoe, 2a is a bucket, 3 is a mud water suction pipe, 4 is a suction hose, and 11 is a suction hose. Muddy water suction pump, 12 is a vacuum pump, 13 is a suction hose, 14 is a compressor, 15 is a generator, 71 is a grab ship, 72 is a weir crane, 73 is a soil carrier, 74 is a clay tank, 75 is a dewatering A working ship 76 is a cooling water tank, and 77 is a turbid water protection sheet.

  As illustrated, the backhoe 2 equipped with the muddy water suction pipe 3 on the bucket 2a is loaded on the dewatering work vessel 75, and the muddy water suction pump 11, the vacuum pump 12, the compressor 14, the generator 15, and the cooling water tank 76 are installed. ing.

  As described above, according to the clay processing system provided with the mobile mud dewatering device of the fourth embodiment, the dewatering work vessel 75 is used as the clay loaded into the clay tank 74 of the earth transportation vessel 73 by the crane crane 72 of the grab vessel 71. By inserting the tip of the muddy water suction pipe 3 provided in the bucket 2a of the loaded backhoe 2 and suctioning the muddy water suction pipe 3 with the muddy water suction pump 11 and vacuum suction with the vacuum pump 12, the clay tank of the earth transportation ship 73 Clogging can be easily addressed by dewatering the mud in 74.

(Other modifications)
In the above embodiments, the mobile machine is a backhoe or a robot, but the present invention is not limited to this, and other vehicles or heavy machines may be used.
In addition, it is needless to say that other detailed structure, method, and the like can be appropriately changed.

  The present invention can be used to cope with clogging due to mud suction, and can be used as a device for moving and dewatering mud.

1 Mud pit 2 backhoe (mobile)
2a Bucket (movable member)
3 Mud water suction pipe 3a Permeable hole 3b Separate screen 3c Punching metal pipe (protection pipe)
3d Press-in cone 3e Fixing band 4 Suction hose 5 Switching valve 6 Suction hose 7 Pressure supply hose 11 Mud water suction pump 12 Vacuum pump 13 Suction hose 14 Compressor 15 Generator 21 Dewatered soil pit 22 Scale stripping plate 23 Stripping part 31 Towing vessel 32 Towline 33 Barge 34 Mud tank 35 Mud tank 36 Cooling water tank 41 Rail 42 Dehydration robot (mobile machine)
43 arm 44 hydraulic unit 45 control panel 51 high frequency vibro 52 band 61 residual soil pit 62 sand master (vibrating sieve)
63 muddy water tank 64 dump truck 71 grab ship 72 dredger crane 73 soil carrier ship 74 dredger tank 75 dewatering work ship 76 cooling water tank 77 turbid water protection sheet

Claims (9)

A moveable mover comprising a moveable member;
A muddy water suction pipe attached to the movable member;
A muddy water suction pump connected to the muddy water suction pipe, for sucking muddy water from the muddy water suction pipe inserted into the mud, and a vacuum pump for vacuum suctioning air;
Mobile mud dewatering device characterized in that it comprises.   The muddy water suction pipe is characterized in that the part inserted into the mud has a water-permeable hole, a separate screen is provided to cover the periphery, and a press-in cone pressed into the mud at the tip is provided. The movable mud dewatering device according to Item 1.   The mobile mud dewatering apparatus according to claim 1, wherein a compressor for supplying air is connected to the mud suction pipe.   The mobile mud dewatering apparatus according to claim 1, wherein the mobile machine is a backhoe including a bucket as the movable member, and the muddy water suction pipe is fixed to the bucket.   The mobile mud dewatering apparatus according to claim 1, wherein a high frequency vibro is attached to the muddy water suction pipe.   Using the movable mud dewatering apparatus according to claim 1, the muddy water suction pump sucks muddy water from the muddy water suction pipe inserted in the mud by the movable member, and the vacuum pump suctions air in a vacuum A mud dewatering method characterized in that the process is repeated every time the moving machine is moved.   A method for dewatering mud, comprising consolidating the mud by pressing the muddy water suction pipe into the mud with the press-in cone at the tip using the movable mud dewatering device according to claim 2.   The movable mud dewatering apparatus according to claim 3, wherein the movable member pulls up the muddy water suction pipe from the muddy soil and supplies the compressed air to the muddy water suction pipe by the compressor, thereby adhering to the separate screen A method of dewatering mud characterized by blowing off the mud.   The separation screen is clogged in a state in which the muddy water suction pipe is pulled up from the mud by the movable member using the movable mud dewatering device according to claim 5, and the muddy water suction pipe is vibrated at high frequency by the high frequency vibro. A method of dewatering mud, comprising vacuum suctioning the ground particles with the vacuum pump.

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