JP2606716Y2 - Mixing equipment for mud 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 a mixing apparatus for mixing a mud and a solidifying material, which is used for continuously solidifying mud such as a soft soil having a high water content or a gill.

[0002]

2. Description of the Related Art Mud with a high moisture content discharged by soft ground construction or the like tends to flow as it is, and cannot be dumped at a disposal site or used for landfill.
For this reason, conventionally, a solidifying material has been added to and mixed with mud to discard or reuse after reducing fluidity. Conventionally, as a treatment facility for the mixing, a mechanical method using a stirring blade has been adopted.
The following processing plant is employed.

The processing plant shown in FIG. 1 comprises a mixer 1 having a stirring blade 1a, a solidifying material supply device 2 arranged on the mixer 1, one end facing the mixer 1 and the other end being muddy. And a predetermined amount of mud supplied into the hopper 3a is fed into the mixer 1 through the feeder 3, and at the same time, solidification is performed from the supply device 2 in an amount corresponding thereto. Materials are charged and mixed while being stirred by the stirring blades 1a. After mixing, the mixed soil is taken out from the lower part of the mixer 1 and transferred to a transfer means such as a dump.

[0004]

[Problems to be Solved by the Invention] However, in this type of processing plant, since the mixer is a batch type, a plurality of mixers are required to solidify a large amount of mud, and the plant itself is There was a drawback of increasing the size. On the other hand, in some cases, continuous treatment may be performed using a screw-type mixer.However, in order to increase mixing efficiency, it is necessary to set the length of the screw considerably longer. There is a drawback that a supply device is required and the plant equipment itself becomes large.

The present invention solves the above problems, and an object of the present invention is to provide a mixing apparatus of a mud and a solidified material which is small and lightweight and which can continuously treat a large amount of mud. is there.

[0006]

In order to achieve the above-mentioned object, the present invention provides a high-pressure fluid ejection nozzle disposed in a suction chamber, and extending coaxially with the nozzle and facing the nozzle. One end is connected to the suction chamber, and
A mixing pipe having the other end open to the outside, a mud suction pipe disposed in the suction chamber, a solidification material supply pipe for supplying a solidification material to the suction chamber, and a pump for supplying a high-pressure fluid to the nozzle. It is a thing. In the present invention, a supply pipe of the solidifying material can be arranged in the suction chamber. Further, a slurry of the solidified material mixed with the high-pressure fluid can be supplied through the nozzle.

[0007]

According to the above construction, the muddy soil is sucked into the suction chamber via the suction pipe by the fluid ejected into the suction chamber, moves together with the fluid into the mixing pipe, and is mixed with the solidified material by the turbulent flow inside the mixing pipe. While being discharged to the outside. The processing capacity of this mixing device can be adjusted according to the ejection pressure of the fluid.
The solidified material mixed with the mud may be supplied from a supply pipe arranged in the suction chamber, or may be mixed in a high-pressure fluid.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. In addition, the size of each part in the figure is a model size, and in order to make the description easy to understand, the main part is enlarged, and the peripheral devices are drawn down. In the drawing, a mixing device includes a suction chamber 10, a nozzle 12 protruding from one side of the suction chamber 10 such that the front end faces the inside of the suction chamber 10, and coaxially with the nozzle 12 facing the front end of the nozzle 12. A mixing pipe 14 having one end connected to the suction chamber 10 and one end open to the outside, a mud suction pipe 16 orthogonal to the nozzle 12 and connected to a lower part of the suction chamber 10 and a suction chamber. There is provided a solidified material supply pipe 18 connected to the upper part of the nozzle 10 and a high-pressure pump 20 connected to the other end of the nozzle 12.

The high-pressure pump 20 supplies a fluid composed of high-pressure air, water or a mixture of air and water to the nozzle 12 side. The driving pressure is set at 100 to 200 Kg / cm ^{2 so} that the pressure of the nozzle 12 is 100 m / cm ^2. A jet jet speed of about one minute can be obtained, and this value can be appropriately set according to the state of the mud and the amount of the caking material added.

The other end of the mud suction pipe 16 is connected to a mud storage tank 22.
Through a pipe 24. The mud discharged by construction or the like is sequentially stored in the storage tank 22 through a conveyor or the like, and is continuously sent to the mixing device side by operation of the device.

The solidified material supply pipe 18 communicates with the solidified material stirring tank 24 through a pipe 26. A hopper 28 for supplying a powdered solidifying material such as lime or cement and a pipe 30 for supplying tap water are arranged in the stirring tank 24.
The solidified material and the water are sequentially mixed by a stirring blade 24a provided in 4 to form a slurry.

The suction chamber 10 has a negative pressure inside when the fluid is jetted from the nozzle 12,
Through the suction pipe 16 and the supply pipe 18, the mud and the slurry-like solidified material are drawn into the inside as a mist.

The interior of the suction chamber 10 is sequentially narrowed in cross section to the connection with the mixing pipe 14, and this portion is used as a jet ejection portion 10a, and the fluid ejected from the nozzle 12 flows toward this portion. The mist of the mud and the solidified material is mixed and jetted into the mixing pipe 14 at high pressure through the jetting portion 10a while being drawn into the fluid.

The mixing tube 14 has a horn shape whose diameter gradually increases from the jetting portion 10a, and this portion is used as a stirring portion 14a. When a mixture of the jetting fluid, mud and solidified material passes through the stirring portion 14a, an arrow is formed. As shown by, turbulence occurs, and due to the stirring effect of this turbulence, it is mixed uniformly,
The speed is rapidly reduced at the widened outlet end, and is received by a receiving hopper 32 provided below the outlet. This hopper 3
The mixture stored in 2 is sequentially transferred to a dump 34 or the like.

It is necessary to prevent the mixture from scattering by providing a baffle plate or the like at the place where the hopper 32 is disposed. When the fluid to be jet-sprayed is water or a gas-water mixture, it is better to deliver the excess water to the hopper 32 in a state where the excess water is separated by a separation tank or the like, instead of directly passing the water to the hopper 32. .

FIG. 2 shows a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and only different portions will be described. In the figure, instead of providing a solidified material supply pipe in the suction chamber 10, the solidified material stirring tank 24 is provided on the supply side of the high-pressure pump 20 by a pipe 4.
0. Accordingly, the slurry of the solidified material is jet-jetted from the nozzle 12 and the suction pipe 16
The mud supplied into the suction chamber 10 through the through-hole continuously passes through the mixing pipe 14 together with the solidified material slurry jetted out, and is jetted to the outside while being uniformly mixed therein. In this embodiment, the structure of the device is further simplified.

FIG. 3 shows a third embodiment of the present invention. In the drawing, a screw-type powder supply device 50 is connected in the suction chamber 10 instead of the solidification material supply pipe, and the powdered solidification material is supplied through the powder supply device 50 to the suction chamber 10.
It is configured to be supplied inside. In this embodiment, the strength of the mixture can be increased even with a small amount of solidified material.

[0018]

As described in detail in the above embodiments, in the mixing apparatus for mud and solidified material according to the present invention, the mud is ejected into the suction chamber through the suction pipe by the fluid ejected into the suction chamber. It is sucked and moves with the fluid into the mixing pipe, and it is discharged to the outside while being mixed with the solidified material by the turbulent flow inside the mixing pipe, so the mixture of mud and solidified material can be efficiently produced with a relatively small and simple device Can be obtained continuously.

Further, since the processing capacity of the mixing device can be adjusted according to the ejection pressure of the fluid, it is possible to perform the processing in accordance with the amount of mud supplied and to simplify or omit peripheral equipment.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of a mixing device according to the present invention.

FIG. 2 is a schematic diagram according to the second embodiment.

FIG. 3 is a schematic diagram according to the third embodiment.

FIG. 4 is a schematic view of a conventional mixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Suction chamber 12 Nozzle 14 Mixing pipe 16 Mud suction pipe 18 Solidification material supply pipe 20 High pressure pump

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-132000 (JP, A) JP-B-50-34267 (JP, B1)

Claims (3)

(57) [Scope of request for utility model registration] 1. A high pressure fluid ejection nozzle disposed in a suction chamber, coaxially extending with the nozzle facing the nozzle, one end connected to the suction chamber, and the other end connected to the outside. An open mixing pipe, a mud suction pipe arranged in the suction chamber, a solidification material supply pipe for supplying a solidification material to the suction chamber, and a pump for supplying high-pressure fluid to the nozzle, Mixing equipment for mud and solidified material. 2. A mixing device for mixing mud and solidified material according to claim 1, wherein a supply pipe for solidified material is arranged in said suction chamber. 3. A slurry of the solidified material mixed with the high-pressure fluid is supplied through the nozzle.
A mixing device for the described mud and solidifying material.