JPS6215685B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for creating a stable ground by a continuous hardened layer in a specific part of a sludge pool.

The present applicant hardens the sludge by injecting a sludge hardening agent such as Beton cement into the sludge stirred by the stirring blade while intermittently or continuously moving a conveying means to which a stirring blade is attached. The present invention has been proposed as an efficient agitation treatment device for obtaining stable continuous ground that can be used for structures, etc., during such work.

That is, in order to obtain stable ground with a continuous hardening layer, a transportation means, a frame provided on the transportation means, a base plate that moves up and down guided by the frame, and an agitation hardening treatment attached to the base plate are used. In this case, in particular, the stirring hardening treatment means is provided with a plurality of stages of stirring blades, and a part of the necessary stirring area of each stirring blade of adjacent rotating shafts overlaps with each other. The apparatus is configured to include a curing agent supplying means that is formed on a plurality of rotating shafts arranged in parallel and that simultaneously and uniformly supplies the curing agent to the entire stirring area of the stirring blade.

FIG. 1 shows a specific embodiment of the apparatus of the present invention which is preferably used, in which A is a front view and B is a front view.
is a side view, C is an enlarged detailed view of the dashed-dotted line in B, Fig. 2 is an explanatory diagram showing the state in which continuous stable ground is obtained by using the device of the present invention, and Fig. 3 is an illustration of other stirring blades. It is a perspective view showing an example.

The figure shows a catamaran, and 1 is a float, an agitator 2 for receiving a hardening agent such as Beton cement sent from land onto the float, and stirring and mixing it again;
3b, 3c, . . . A slurry pump 4 is installed. In addition, 5 is these power generation devices.

The stirring hardening means 3a, 3b, 3c, . . . are attached to a base plate 6 which is movable up and down between the frames S and S' provided on the rear side in the following manner. That is, 7a,
7b, 7c, . . . are rotating shafts of each stirring hardening processing means constructed in the hollow, and a plurality of stirring blades 8a ₁ , 8a ₂ .
..., _{8b 1 , 8b 2} . A large number of holes or slits 9 are bored as supply holes. (See Figure C) On the other hand, the stirring blades of adjacent rotating shafts are located in correspondence with each other between the stirring blades, and are installed so that the tip portions of the stirring blades overlap each other by a certain width W in a vertical relationship. ing.

9a ₁ , 9a ₂ , 9a ₃ ... are the respective rotating shafts 7a ₁ , 7a ₂ ,
A motor for rotating 7a ₃ . Used to forcefully guide up and down. Although not shown, the sludge hardening agent from the slurry pump is sent into the hollow shafts of each stirring shaft projected above the base plate by a hose or the like.

In the stirring blade structure of the stirring hardening processing means as described above, when the curing agent is jetted out at a certain pressure from the hole or slit 9 of the stirring blade attached to each rotating shaft, the vertical position of each stirring blade is The relationship is the interval at which the curing agent penetrates into the sludge layer between the upper and lower layers and the curing process is sufficiently performed, and the number of the sludge layers is set to an appropriate value depending on the thickness of the sludge layer to be treated.

Next, an example of work using the apparatus of the present invention will be explained.

When the conveyance means arrives at the desired work place, the base plate 6, which is to lower each stirring blade that was initially pulled up into the sludge layer to be hardened, is moved to the frame S,
Lower it while forcibly guiding it to S′. When it reaches the sludge layer to be treated, it stops descending, maintains the same state, and slowly advances the conveying means while rotating the stirring blades along with the drive of the rotating shaft, and spouts out the sludge hardening agent to remove the sludge layer. Carry out curing treatment.

An example of such work is a case where the agitation hardening processing means is configured as follows. That is, a large number of stirring blades provided in the length direction of the rotating shaft are arranged in a number of stages exactly matching the thickness of the sludge layer to be treated, and a large number of stirring blades are arranged vertically in the width direction perpendicular to the direction of movement of the conveying means. The number of stirring blades to be used is exactly the same as the processing width of the sludge layer to be treated, and the sludge between the top and bottom of each stirring blade and the sludge between adjacent stirring blades on adjacent rotating shafts is In order to perform a sufficient hardening process, the stirring hardening means is formed such that the upper and lower parts are spaced so that the hardening agent can penetrate well, and the adjacent parts are spaced so that the tips of the stirring blades overlap.

On the other hand, if each stirring blade of the stirring hardening treatment means has a number of steps shorter than the thickness of the sludge layer to be treated, as in the conventional work, the stirring area of the stirring blade should be adjusted according to the thickness of the sludge layer. For hardening treatment that involves moving the base plate 6 to expand the vertical range, and when each stirring blade of the same means is provided in a quantity that is shorter than the processing width of the sludge layer to be treated, the stirring blade The curing process is carried out by repeatedly moving the conveying means laterally in order to expand the stirring area to a width range corresponding to the processing width. In either case, the fact that the means of transport moves intermittently or continuously is the same as before, and there is no change.
As shown in Figures 2A and B, the ground treated by the device of the present invention is completely hardened (indicated by diagonal lines) so that there is no untreated part in the vertical, horizontal, or height of the sludge layer. ) is carried out and a continuous hardened layer is obtained very efficiently. Here, A shows a plan view, B shows a cross-sectional view, and the arrow shows the direction of travel of the conveyance means.

Therefore, the treated layer performed by the apparatus of the present invention is a stable hardened ground, which can be made into a ground particularly suitable for building structures.

The float in this example is mainly formed in the shape of a boat with buoyancy, but it may also be moved by rotation of wheels, and may also function as a means of transportation that can perform various operations for this purpose. It is preferable to use a winch means to move the transport means, but other means can also be used.

FIG. 3 shows another example of a suitably implemented stirring blade. In this example, the stirring blade has auxiliary blades F of a constant length in the vertical direction at both ends, and similarly the hardening agent is ejected. In each stage, a plurality of stirring blades 8'a ₁ , 8'a ₂ .
They are installed so as to have a phase difference of 180°, and the adjacent rotating shafts 7'b and each stirring blade 8'b ₁ ,
8'b ₂ ... are located in the middle facing each other and are installed so as to have a certain overlap d ₁ and d ₂ in the vertical and horizontal directions.

In each of the above embodiments, the tips of the stirring blades of adjacent rotating shafts are overlapped in the vertical position, but the curing agent discharged from the tips of the stirring blades is mixed with each other. It is not necessarily necessary to overlap if the jets are ejected at compatible pressures.

As is clear from the embodiments described above, the device of the present invention is effective in creating stable ground with a continuous hardened layer of uniform strength in a specific part of a sludge pool, and is particularly effective for creating a stable foundation that can be used for superstructures, etc. It is extremely effective in gaining ground. The relevant effect is
As detailed above, this is because the positional relationship of the stirring blades is in a unique and unique relationship, and the curing agent supply means has a unique structure that is unprecedented. This is because the structure of the frame body and base plate provided on the conveyance means has an unprecedented structure that allows special movement.

[Brief explanation of the drawing]

FIG. 1 is a diagram preferably used in implementing the device of the present invention, in which A is a front view, B is a side view,
C is an enlarged detailed view of the dashed-dotted line in B, 2nd
The figures are explanatory diagrams showing a state in which continuous stable ground is obtained by implementing the apparatus of the present invention, in which A is a plan view, B is a sectional view, and FIG. 3 is a perspective view showing another example of the stirring blade. 1... Float, 2... Agitator, 4... Slurry pump, 5... Power generator, 6... Base plate, 7... Rotating shaft, 8... Stirring blade, 9... Hole or slit.

Claims (1)

[Claims] 1. Consisting of a conveying means, a frame provided on the conveying means, a base plate that moves up and down guided by the frame, and an agitation hardening treatment means attached to the base plate, and the agitation hardening treatment means: Stirring blades are formed in multiple stages at intervals in the length direction of the rotating shaft, and the stirring blades on adjacent rotating shafts are arranged at intervals such that a portion of the required stirring area of each stirring blade on the adjacent rotating shaft overlaps with each other. The rotating shaft and the stirring blade are both hollow, allowing the hollow parts to communicate with each other, and the stirring blade has a large number of supply holes. A sludge stirring treatment apparatus characterized in that the curing agent fed through the hollow part of the rotating shaft is simultaneously and uniformly supplied throughout the stirring area.