JPH04130347U - Stirring mixer - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a stirring and mixing device that can efficiently perform solidification treatment with uniform strength without requiring a large space, and can reduce equipment costs and the number of workers. [Configuration] A housing 9 having a predetermined length, an inlet 15 provided at one longitudinal end of the housing 9 and connected to the pressure feed pipe 3, and an outlet provided at the other longitudinal end of the housing 9. 17, a solidification material injection part 33 that jets solidification material into the housing 9 near the inlet 15, and a solidification material injection part 33 that is installed horizontally in the housing 9 in the longitudinal direction of the housing 9 and solidifies the raw mud that is press-fitted from the inflow port 15. A stirring blade 11 that stirs and mixes the materials, and a drive unit 31 that rotationally drives the stirring blade 11.
It is characterized by comprising:

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention mixes a solidifying agent in the process of pumping soft mud soil such as excavated soil or dredged soil with high water content. The present invention relates to a stirring and mixing device that performs solidification treatment.

0002

[Conventional technology]

At construction sites, civil engineering sites, etc., soft mud soil such as excavated soil or dredged soil with high water content is generally used. The raw mud is then pumped through a pressure pipe to a location far away from the site. At this point, the material is stirred and mixed with the solidifying material using a stirring and mixing device to perform the solidifying process.

0003

[Problem that the idea aims to solve]

However, in such conventional processing methods, the pressure feeding process and the solidification process are Each is done independently and requires separate installation of separate equipment. Therefore, equipment costs are high and a large space must be secured. In addition, it requires a worker to manage the pumping process and a worker to manage the solidification process. Therefore, the number of workers increases, and there is a cycle gap between the pumping process and the solidification process. There was a problem that caused a drop to occur. This invention was devised in view of the above circumstances, and the purpose of this invention is to Efficient solidification process with consistent strength without having to maintain pace Our goal is to provide a stirring and mixing device that can reduce equipment costs and reduce the number of workers. .

0004

[Means to solve the problem]

In order to achieve the above object, the present invention includes a housing having a predetermined length and a housing having a predetermined length; an inlet provided at one end of the housing in the longitudinal direction and connected to the pressure feed pipe; an outflow port provided at the other longitudinal end of the ring, and the housing near the inflow port. a solidifying material injection part that spouts a solidifying material into the housing; Stirring blades installed horizontally in the direction and stir and mix the raw mud and the solidification material that are forced in from the inlet. The stirring blade is characterized by comprising: a base; and a drive unit that rotationally drives the stirring blade. Further, in the present invention, the stirring blade has a rotating shaft and a narrow width on the radially outer side of the rotating shaft. It is characterized by consisting of a blade body in which a plate material is spirally wound. Furthermore, in the present invention, two stirring blades are provided, and the stirring blades rotate in opposite directions at the same speed. It is characterized by being configured to rotate.

[0005]

【Example】

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 is an overall side view including the pressure feed pipe and stirring and mixing device, and Figure 2 is a plan view of the stirring and mixing device. Figures 3 and 3 show the same perspective view, and the raw mud from the work site is pumped into the mud pump 1 and 3 to the landfill site 5. The stirring/mixing device 7 according to the present invention is arranged at the end of the pressure feeding pipe 3, as shown by the shaded area in FIG. It also serves as part of the raw mud pumping route. As shown in FIGS. 2 and 3, the stirring and mixing device 7 includes a housing 9 and a housing. Two stirring blades 11 are provided inside the stirring blade 9.

[0006] Two cylindrical parts 901 are arranged in parallel in the housing 9, and the tip of each cylindrical part 901 is It is connected to the inflow pipe 15 via the inner wall 9A, and the rear end of each cylindrical portion 901 is connected to the inner wall 9A. It is connected to the outflow pipe 17 via B, and the tip of the inflow pipe 15 is connected to the rear end of the pressure feed pipe 3 with a flange They are removably connected via a cable. Each stirring blade 11 has a rotating shaft 21 rotatably supported by a bearing 19, and a rotary shaft 21 rotatably supported by a bearing 19. It is composed of two blade bodies 23 arranged around a rotating shaft 21. As shown in FIGS. 3 and 4, each blade body 23 has a plate material of a predetermined width screwed with a large inner diameter. Both blade bodies 23 are bent into a spiral shape, and both blade bodies 23 are connected to the rotating shaft 21 via a plurality of support rods 25, respectively. The slurry is retained, allowing for effective stirring and resistance to movement of raw mud in the direction of pumping. is formed to be as small as possible.

[0007] In the vicinity of the inflow pipe 15, a drive device 31 that rotationally drives the stirring blade 11 and a solidification device 31 are provided. A material injection device 33 is attached. The drive device 31 includes a motor 311 and a gear box 312. Power is taken out from the output shaft 313 of the gear box 312, and this power is passed through a pair of gears. to one stirring blade 11 via the chain 314, and to the other stirring blade 11 via the chain 315. The information is transmitted to each stirring blade 11, and both stirring blades 11 are transmitted to each other as shown by arrows in FIG. They are configured to rotate in opposite directions and at the same rotational speed. In addition, 317 in the figure shows a bracket that supports the motor 311.

[0008] The solidifying material injection device 33 is installed in a solidifying material plan installed at an appropriate location as shown in FIG. 35, a pressure feed hose 37 connected to the solidification material plant 35 side, and a pressure feed hose 37 as shown in FIG. A solidification material injection part 39 connected to the end of this pressure feeding hose 37 and a solidification material injection part It is equipped with a nozzle 41 and the like. As shown in the enlarged sectional view in FIG. 5, the solidifying material injection part 39 is attached to the inflow pipe 15 and It includes a housing 43 into which the rotating shaft 21 is inserted, and both ends of the housing 43 and the rotating shaft 2 An O-ring 45 is interposed between each housing 9 and a closed space 47 is formed in the housing 9. The solidifying material is supplied to this closed space 47 from the pressure feeding hose 37. and A horizontal hole 49A is opened in a portion of the rotating shaft 21 located in this closed space 47. A vertical hole 49B is formed in communication with the horizontal hole 49A, and a vertical hole 49B is formed near the inflow pipe 15 of the cylindrical portion 901. A horizontal hole 49C communicating with this vertical hole 49B is opened in the part, and an injection nozzle is installed in this opening. 41 is attached.

[0009] Since this example is configured as described above, excavated soil with high water content, dredged soil, etc. The soft mud is pumped to the landfill site 5 side by the pumping pipe 3, and the final step of this pumping process is At this point, the mixture reaches the stirring and mixing device 7. Then, in the stirring and mixing device 7, the raw mud from the pressure feed pipe 3 flows from the inlet pipe 15 into the housing. The solidifying material is fed under pressure into the housing 9 and is injected from the injection nozzle 41 onto the raw mud in the housing 9. It will be done. Then, the raw mud is stirred and mixed with the solidification material by stirring blades 11 in the housing 9. The two are pumped to the outflow pipe 17 side, thoroughly stirred and mixed, and then discharged from the outflow pipe 17 to the landfill site 5. Served.

0010 Therefore, according to this embodiment, since the solidification process is performed in the pumping process, the cycle time is There is no gap between the two, and the mixing is forcibly stirred by the stirring blade 11. , the solidification process can be performed efficiently, and high-quality improved soil with consistent strength can be obtained. In addition, since the pressure feeding process and the solidification process are performed in the same process, they are Eliminates the need to install individual devices or secure large spaces, reducing equipment cost. In addition, it is possible to reduce the number of workers by allowing them to serve as both solidification processing personnel and pumping personnel. It is possible to reduce this amount.

[0011]

[Effect of the idea]

As is clear from the above explanation, according to the present invention, the solidification process is performed in the pumping process of raw mud. This allows for uniformity in strength without requiring a large amount of space. Efficiently perform solidification treatment without waste, reducing equipment costs and the number of workers. becomes possible.

[Brief explanation of drawings]

FIG. 1 is an overall side view including a pressure feed pipe and a stirring and mixing device.

FIG. 2 is a plan view of the stirring and mixing device.

FIG. 3 is a perspective view of the stirring and mixing device.

FIG. 4 is a front view of main parts of the stirring and mixing device.

FIG. 5 is a sectional view of a main part of the solidifying material injection device.

[Explanation of symbols]

1 Pressure pump 3 Pressure feed pipe 7 Stirring mixer 9 Housing 11 Stirring blade 15 Inflow pipe 17 Outflow pipe 21 Rotation axis 23 Blade body 31 Drive device 33 Solidifying material injection device

Claims (3)

[Scope of utility model registration request] 1. A housing having a predetermined length, an inlet provided at one longitudinal end of the housing and connected to a pressure feed pipe, and an outlet provided at the other longitudinal end of the housing. A solidification material injection part that sprays a solidification material into the housing near the inflow port, and a solidification material injection unit that agitates and mixes the solidification material with the raw mud that is placed horizontally in the longitudinal direction of the housing and is press-fitted from the inflow port. A stirring and mixing device comprising: a stirring blade; and a drive unit that rotationally drives the stirring blade. 2. The stirring and mixing according to claim 1, wherein the stirring blade comprises a rotating shaft and a blade body in which a narrow plate material is spirally wound on the outside in the radial direction of the rotating shaft. Device. 3. The stirring and mixing device according to claim 2, wherein two stirring blades are provided and are configured to rotate at the same speed and in opposite directions.