JP3231456B2 - Mixing and casting equipment for soil and solidified material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mixing and pouring earth and sand with a solidified material, which is used when a solidifying agent is added to earth and sand, kneaded, and poured into the sea floor.

[0002]

2. Description of the Related Art Conventionally, when a solidifying material is added to earth and sand, and both are kneaded and cast on the seabed, the earth and sand and the solidifying material are put into a mixing plant, stirred, mixed, and then pumped. In general, it was sent to the Ptolemy pipe under pressure and then sent to the sea floor by the Ptolemy pipe for casting. However, in the above-mentioned conventional method, when a solidifying material is added to a large amount of earth and sand and mixed and poured, it is necessary to increase the size of the mixing plant and to increase the capacity of the pumping pump. Because of the limitations, a large number of pumps are required, the equipment becomes complicated, and even if one of these pumps and the mixing plant breaks down, the work stops, resulting in poor work efficiency and economical efficiency. Even had a big problem.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has a simple facility, economically adding and mixing a solidified material to a large amount of earth and sand, and pouring. It is an object of the present invention to provide an apparatus for mixing and driving a mixture of earth and sand and a solidified material.

[0004]

Means for Solving the Problems The present invention, in oar of solidifying material plant and soil storage tank and disposed was barge, tips can be opened and closed, and only set the vertical mixer inside, water top
A mixing and casting device for mixing the earth and sand with the solidified material, which is provided with means for suspending the mixer casing opened to the atmosphere above and below so as to be able to ascend and descend, and having means for quantitatively supplying the earth and sand and the solidified material into the mixer casing.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In this embodiment, a mixing and casting apparatus of earth and sand and a solidified material is dredged by a glove 11 provided on a high-concentration pressure vessel 10. The sediment dredged from the ground 12 is sent to the barge 14 by the marine transport pipe 13 by the mixed-pressure feeder 1 by the marine transport pipe 13, and the degassed sediment is stored in the sediment storage tank 6 by the deaerator / concentrator 3. A fixed amount supply device 4 such as a screw feeder supplies a fixed amount to the mixer casing 7.

A solidified material plant 2 is disposed on the barge 14 together with a sediment storage tank 6, and a vertical type which can be opened and closed by a hydraulic cylinder 16 at the tip of a tower 15 of the barge 14. The mixer casing 7 is hung up and down. Further, inside the mixer casing 7, a vertical mixer 5 composed of a biaxial stirrer having stirring blades is provided.

Further, from the above-mentioned solidified material plant 2,
The solidified material can be supplied quantitatively into the mixer casing 7 by a quantitative supply device (not shown). Next, a description will be given of the operation of the mixing / casting apparatus of the earth and sand and the solidified material having the above configuration. First, the earth and sand pumped by the marine transportation pipe 13 is supplied from the earth and sand storage tank 6. At this time, the fixed-quantity supply device 4 and the solidified material plant 2
And the solidified material are supplied quantitatively into the mixer casing 7 by the quantitative supply device from the vertical mixer 5.
While mixing the soil and the solidified material in the mixer casing 7, the tip of the mixer casing 7 is opened and the solidified soil P is poured on the seabed B.

Therefore, as in this embodiment, if the mixer casing 7 is provided with a measuring device 8 such as an ultrasonic type or a weight type, the thickness of the casting on the seabed B can be controlled. In this embodiment, since the dredged soil is made viscous soil and the supply of the earth and sand is performed by the mixed pressure feed, the deaeration and concentration device 3 as shown is required. Is supplied, this degassing and concentrating device 3 is unnecessary.

[0009]

(1) Since a means is provided for quantitatively supplying the earth and sand and the solidified material into the mixer casing, it is possible to obtain the earth and sand having a desired mixing ratio, and to reduce the mixing ratio during the casting of the earth and sand. There is no need to worry about fluctuations, and a certain amount of earth and sand can be cast. (2) Since the solidified material plant and the earth and sand storage tank are arranged on the barge and the solidified material and the earth and sand are respectively supplied to the mixer casing, the earth and sand can always be continuously supplied. Good casting efficiency. (3) Since the mixer casing is opened to the atmosphere using a vertical mixer and opened to the atmosphere, solidified materials and earth and sand can be supplied using atmospheric pressure and gravity, so no pump is necessary, and as a result, the mixer casing is not required. The capacity can be easily increased, and the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is an overall side view showing the periphery of an apparatus for mixing and setting earth and sand and a solidified material according to an embodiment of the present invention.

[Explanation of symbols]

2 Solidified material plant 5 Vertical mixer 6 Sediment storage hopper 7 Mixer casing 14 Barge 15 Turret

Continuing on the front page (72) Inventor Tetsuzo Iwatsuki 1-3 Azen-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Within Toa Construction Industry Co., Ltd. (72) Inventor Isao Iida 18 Nippon Odori, Naka-ku, Yokohama-shi, Kanagawa Prefecture Toa Construction Industry (72) Inventor Kazunori Imamura 1-3 Azen-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Toa Construction Industry Co., Ltd. (56) References JP-A-3-63315 (JP, A) JP-A-2-58630 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) E02D 15/10 E02B 3/18

Claims (1)

(57) [Claims] To 1. A solidifying material plant and soil storage tank and disposed was barge tower, tips can be opened and closed, and only set the vertical mixer inside, mixer open to the atmosphere the upper on the water surface < a mixing and casting apparatus for mixing earth and sand and a solidified material, wherein the casing is suspended so as to be able to move up and down, and a means for respectively supplying the soil and the solidified material into the mixer casing is provided.