JPH0537400U - Mud treatment equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to obtain good quality improved soil by enabling cutting and breaking of mud and mixing of solidifying agents. [Structure] A rotating body 6 which is driven to rotate is disposed in a treatment tank 1 into which mud 15 is charged, and a solidifying agent is slurried from the rotating body 6 so as to be injected at high pressure. It is characterized in that an outflow passage 8 is formed through a flow passage 7 through which the agent is pressure-fed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a mud treatment device, more specifically, mud that is difficult to dispose of, such as mud for reuse, dredged sludge, excavated mud, etc., is made into high-quality improved soil by using a cement-based solidifying agent. Processing device for

[0002]

[Prior Art]

 Conventionally, as a treatment means for this kind of mud, for example, a mud is mixed with a solidifying agent in a bucket or the like and treated by a backhoe, or a mud in a pipeline is mixed with the solidifying agent during the distribution thereof. There is a processing device.

Further, there is a device for adding a powdery solidifying agent to mud in a storage tank and mechanically mixing and stirring the two by rotating a stirring blade.

[0004]

[Problems to be solved by the device]

 However, in the mixing process using the backhoe or the like, the solidifying agent cannot be uniformly mixed because the solidifying agent is previously sprayed on the mud and mixed with the bucket or the like.

In addition, it is extremely difficult for the processing device that mixes in the pipeline during distribution to mix and stir the soil mass in the mud, and the treatment device in the storage tank does not respond to the temporal change of the water content of the mud. Since the solidifying agent cannot be mixed on average as in the case of mixing, there is a big problem that good quality improved soil cannot be obtained.

Further, in the mechanical stirring method using the stirring blade in the storage tank, when the water content of the mud is high, the clod in the mud easily escapes, so that the cutting work by the stirring blade is very difficult. In addition, there is a fatal problem that the soil mass does not pass through between the stirring blades and sufficient mixing and stirring cannot be performed.

That is, the above-mentioned conventional means are not necessarily the most suitable means for treating mud.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to obtain good quality improved soil by enabling cutting and breaking of mud and mixing of a solidifying agent. Is an issue.

[0009]

[Means for Solving the Problems]

 That is, in order to solve the above-mentioned problems, the present invention is arranged such that a rotating body 6 that is driven to rotate is disposed in a treatment tank 1 into which mud 15 is charged, and a solidifying agent is made into a slurry form from the rotating body 6 and is injected at high pressure. In order to do so, the rotary body 6 is a mud treatment device in which an outlet 8 is formed through a flow passage 7 through which the solidifying agent is pressure-fed.

[0010]

[Action]

 Therefore, in the mud treatment apparatus characterized by the above configuration, when the rotating body 6 is rotationally driven and the solidifying agent is pressure-fed to the flow passage 7 of the rotating body 6, the slurry-like solidifying agent is generated from the outlet 8. High-pressure injection will be performed in the processing tank 1.

As a result, the mud 15 in the treatment tank 1 and the clod in the mud 15 are satisfactorily cut and broken by the rotary injection of the solidifying agent, and the solidifying agent and the mud 15 are uniformly mixed. Therefore, good quality improved soil can be obtained.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a processing tank fixed to a frame 2, and a chute 3 for throwing mud is provided at one end of a canopy 1a formed at the upper end of the processing tank. A screw feeder 5 driven by an electric motor 4 is attached to the lower opening 1b formed at the lower end as shown in FIGS.

Reference numeral 6 denotes a rod-shaped rotating body disposed substantially in the center of the processing tank 1, and a flow passage 7 communicating with an inlet 10 formed at the upper end of the rotating body is formed along the axial direction of the rotating body 6. At the same time, a nozzle 9 is attached to an outflow port 8 which is open to the side surface of the rotating body 6 and communicates with the flow passage 7. Reference numeral 12 denotes a swivel connected to the flow passage 7, through which the slurry-like cement-based solidifying agent is pressure-fed. Reference numeral 11 denotes an electric motor arranged above the canopy 1a of the processing tank 1, and drives the rotating body 6 to rotate via a speed reducer 16.

Reference numeral 13 denotes a stirring blade main body externally fitted to the tip of the rotating body 6, and a pair of tilted stirring blades 13 a is projectingly provided on a side surface of the stirring blade main body 13. Reference numeral 14 denotes a fixed blade that is fixed to the inner wall of the lower tubular portion 1c of the processing tank 1 in an inclined position above the stirring blade main body 13 and is loosely fitted to the rotating body 6.

The mud treating apparatus according to the present invention has the above-mentioned configuration. Next, a case of treating mud using the mud treating apparatus will be described.

First, while continuously charging mud 15 from the chute 3 into the processing tank 1 and driving the electric motor 11 to rotate the rotating body 6, a high pressure pump or the like is used to swivel 12 and the inlet 10. When the slurry-like cement-based solidifying agent is pressure-fed to the flow passage 7 of the rotating body 6, the solidifying agent is injected from the nozzle 9 through the outlet 8 of the rotating body 6 into the mud 15 at a high pressure. . The solidifying agent is injected under pressure at a pressure of about 200 to 600 kg / cm ² .

By the solidifying agent thus jetted at high pressure while rotating, the mud 15 descending in the treatment tank 1 and the clod in the mud are extremely easily and averagely cut and broken, and the solidifying agent is It is mixed with mud 15.

Moreover, since the treatment tank 1 is provided with the fixed blades 14 and the rotating body 6 is provided with the stirring blades 13a, the mud soil 15 is well stirred by the both blades 14 and 13a. The soil 15 and the solidifying agent are evenly mixed to obtain good quality improved soil.

Then, the treated soil is discharged to the outside by the screw feeder 5 driven by the electric motor 4 through the discharge port 5a. In this case, if the discharge amount of the treated soil by the screw feeder 5 or the pump rotation speed is changed by the electric motor 4, the outflow amount of the solidifying agent can be adjusted appropriately, and thereby the desired quality can be obtained. The improved soil that they have can be obtained.

In the above-mentioned embodiment, the rotor 6 is provided with the stirring blade 13a and the treatment tank 1 is provided with the fixing blade 14, so that the mud soil 15 and the solidifying agent can be easily mixed. However, the stirring blades 13a and the fixed blades 14 do not necessarily have to be provided.

Further, in the embodiment, the screw feeder 5 is provided in the processing tank 1 to discharge the improved soil from the processing tank 1, but such discharging means may be provided as necessary.

Further, the position of the nozzle 9 attached to the rotating body 6 is not limited to the above embodiment, and may be provided at the position shown by the chain double-dashed line in FIG. 1 or a plurality of positions may be provided. Instead, it can be appropriately changed according to the shape and size of the processing tank 1.

Further, although the cement-based solidifying agent is used in the embodiment, the present invention is not limited to this, and the solidifying agent may be changed according to the kind of the mud to be treated.

In addition, the specific configurations such as the shapes of the processing tank 1 and the rotary shaft 6 can be arbitrarily changed within the scope intended by the present invention.

[0026]

[Effect of the device]

 As described above, according to the present invention, the solidifying agent is pressure-fed to the flow passage of the rotating body that is rotationally driven, and the solidifying agent is sprayed from the outlet to the mud in the treatment tank in a slurry form at a high pressure. Therefore, the high-pressure injection of the solidifying agent enables better cutting and destruction of the mud and the clod in the mud than before, and the uniform mixing of the mud and the solidifying agent can be achieved. It has a special effect that improved soil can be obtained.

Moreover, the mud treatment apparatus according to the present invention has a practical effect that it can be manufactured inexpensively and easily because the apparatus itself has a very simple structure.

[Brief description of drawings]

FIG. 1 is a partial sectional front view of a mud treatment device showing an embodiment according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged side view of the relevant part.

[Explanation of symbols]

 1 ... Treatment tank 5 ... Screw feeder 6 ... Rotating body 7 ... Flow passage 8 ... Outflow port 13a ... Stirring blade 15 ... Mud

Claims (4)

[Scope of utility model registration request] 1. A rotating body 6 which is rotatably driven is disposed in a treatment tank 1 into which mud 15 is charged, and the rotating body 6 is provided with a solidifying agent in the form of a slurry for high pressure injection. A mud treatment device, characterized in that an outflow port (8) is formed through a flow passage (7) through which the solidifying agent is pressure-fed. 2. The mud treatment device according to claim 1, wherein a stirring blade 13a for stirring mud is provided on the tip side of the rotating body 6. 3. The mud treatment device according to claim 1, wherein the treatment tank 1 is provided with a discharging means for discharging the treated mud 15. 4. The mud treatment device according to claim 3, wherein the discharging means is a screw feeder 5.