JP4083083B2 - Foaming mortar or air milk foaming equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foaming apparatus for making foamed mortar or air milk .
[0002]
[Prior art]
For example, foam mortar or air milk is used as a material for filling a space or embankment in various civil engineering works, building works, piping works, and the like.
[0003]
The foamed mortar or air milk (foamed mixed lightweight soil) is based on mortar or lightweight soil , mixed with foaming agent liquid, stirred and foamed, and pumped with a pump and piping. It is to be placed at the target site.
[0004]
Conventionally, such a foaming mortar or foaming apparatus for producing air milk is provided with a foaming agent liquid supply unit and a compressed air supply unit in the middle of a screw conveyor for transferring mortar or lightweight soil, and is transferred by a screw conveyor. A foaming mortar or air milk is produced by mixing a foaming agent liquid and compressed air with mortar or lightweight soil and stirring them to form foamed mortar or air milk (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP 2000-327444 A (FIG. 1, page 1)
[0006]
[Problems to be solved by the invention]
By the way, the above-described screw conveyor type foaming apparatus has a problem that the structure of the entire apparatus is complicated and large in size, and the manufacturing cost is high, and it takes time to carry in and remove from the installation site.
[0007]
Moreover, since the mortar or lightweight soil transported by the screw conveyor is in a compressed state, even if the foaming agent liquid and compressed air are supplied thereto, the mixing efficiency is very poor. Or there is a problem that it is difficult to obtain air milk.
[0008]
Therefore, the problem of the present invention is that the structure is simple, small and light, so that the production cost is low, and it is advantageous for carrying in and removing from the placement site, and the mortar or lightweight soil and the foaming agent liquid are mixed efficiently. it can, be to provide a can be Ru foamed apparatus for creating a foam mortar or Eamiruku high foaming efficiency.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention includes a mixer for mixing a foaming agent and air, and a mixing mechanism for mixing foaming agent-mixed air and mortar or lightweight soil into foamed mortar or air milk. This mixing mechanism has a two-stage structure of an upper forced mixing portion and a flow-down mixing portion provided at the lower end thereof, and the forced mixing portion is provided with a foaming agent mixed air supply portion at the upper portion of the chamber. And a mortar or lightweight soil supply unit, and a fixed wing attached to the inner periphery of the chamber and a rotary wing rotating inside the chamber are formed inside the chamber. inside place the baffle plate vertically multistage, also employs a configuration which is formed by providing a take-out portion of the foam mortar or Eamiruku the bottom of the chamber It is.
[0010]
The rotor blade of the upper forced mixing section described above has a plurality of blade plates attached to a portion positioned in a vertical axis chamber that rotatably penetrates the upper end portion of the chamber, and a portion protruding from the vertical axis chamber is a chamber. It has a structure that is linked to a motor arranged outside the motor, and rotates with the motor as a drive source.
[0011]
In addition, the upper forced mixing part and the lower flow mixing part are each formed in an arc-shaped container, and the upper and lower chambers are detachably connected to each other in a connecting tube portion having a small diameter. It is possible to easily clean the inside of the lower flow mixing unit.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0013]
As shown in the figure, the foaming mortar or air milk foaming device mixes the foaming agent liquid and air, and mixes the foaming agent liquid-mixed air and mortar or lightweight soil into foaming mortar or air milk. The mixing mechanism 2 has a two-stage structure of an upper forced mixing portion 3 and a flow-down mixing portion 4 provided continuously to the lower end thereof.
[0014]
The mixer 1 is formed in a vertically elongated container, has a structure for mixing the foaming agent liquid and air therein, and is fixed so as to be perpendicular to the vertical plate of the support frame. A foaming agent liquid supply pipe 5 and an air supply pipe 6 are connected to the lower end of the foaming apparatus, and an extraction pipe 7 for foaming agent mixed air mixed in the mixer 1 is connected to the upper end. .
[0015]
The foaming agent liquid supply pipe 5 is connected to a liquid feed pump via a flow meter 8, and the air supply pipe 6 is connected to a compressor via a flow meter 9. The amount of air can be adjusted individually.
[0016]
As shown in FIG. 2, the upper compulsory mixing unit 3 in the mixing mechanism 2 includes a foaming agent mixed air supply unit 11 and a mortar or lightweight soil at positions on both sides of the upper part of the chamber 10 serving as an arcuate container. The supply section 12 is provided, and a plurality of upper and lower fixed blades 13 attached to the inner periphery of the chamber 10 and a rotary blade 14 rotating inside the chamber 10 are formed inside the chamber 10.
[0017]
A tip of a take-out pipe 7 provided at the upper end of the mixer 1 is connected to the foaming agent liquid-mixed air supply unit 11, and the tip of the take-out pipe 7 enters the chamber 10 to mix the foaming agent liquid. next nozzle 15 for ejecting air, also, the supply portion 12 of the mortar or lightweight soil, feed pipe mortar or lightweight soil discharging a mortar or lightweight soil that has been pumped by pressure pump 16 toward the interior of the chamber 10 17 is connected.
[0018]
The rotary blade 14 has a plurality of blade plates 19 attached to a portion of the vertical shaft 18 positioned in the chamber 10 rotatably passing through the upper end of the chamber 10, and a portion protruding from the chamber 10 of the vertical shaft 18 is a chamber. The rotating blade 14 rotates with the motor 20 as a drive source.
[0019]
The flow mixing unit 4 includes a central baffle plate 22 and a peripheral baffle plate 23 arranged in upper and lower stages inside a chamber 21 serving as an arc-shaped container, and a bubble mortar and air milk takeout unit 24 is provided below the chamber 21. This is formed by connecting a take-out pipe 25 to this.
[0020]
The forced mixing unit 3 and the downstream mixing unit 4 are fixed to the vertical plate of the support frame in the middle of the chambers 10 and 21 detachably using a mounting bracket 26 or the like. The chambers in the upper forced mixing unit 3 10 and the upper part of the chamber 21 in the flow-down mixing unit 4 are detachably connected to a connecting tube 27 having a small fitting diameter, and the forced mixing unit 3 and the flow-down mixing unit 4 in the lower part are removed. The inside can be easily cleaned.
[0021]
The foaming apparatus of the present invention is configured as described above. In the case of foaming mortar or air milk , in the case of foaming mortar, a necessary amount of mortar is prepared in advance by kneading with a mixer, and this is supplied by a pressure pump 16. It is discharged from the upper part into the chamber 10 of the forced mixing unit 3 through the pipe 17. Moreover, when producing air milk, a lightweight soil is similarly discharged from the supply pipe | tube 17 in the chamber 10 from the upper part.
[0022]
Simultaneously with the above discharge, the liquid feed pump and the compressor are activated to supply a predetermined amount of foaming agent liquid and air into the mixer 1, and the foaming agent liquid and air are mixed in the mixer 1 to generate foam. The agent-mixed air is produced, and the foaming agent-mixed air is discharged from the upper part into the chamber 10 of the forced mixing unit 3 by the nozzle 15.
[0023]
In the forced mixing unit 3, the rotating blades 14 are rotated by the activation of the motor 20, and the mortar or lightweight soil and the foaming agent mixed air discharged from the upper part into the chamber 10 of the forced mixing unit 3 rotate at the upper level. The mortar or lightweight soil and foam that collided with the wing plate 19 and sputtered while being subdivided, collided with the inner peripheral fixed wing 13 while being mixed with each other, and flowed down from the fixed wing 13 toward the center side. The mixture of the chemical liquid-mixed air collides with the blade 19 at the next position, is subdivided, and is rebounded and collides with the fixed blade 13. By repeating such an operation for the number of blades 19, the mortar Or lightweight soil and foaming agent liquid mixing air are mixed efficiently.
[0024]
When the mortar or lightweight soil mixed with the forced mixing unit 3 and the foaming agent mixed air enter the lower flow mixing unit 4 through the connection cylinder 27 and fall into the chamber 21 from above, It collides with the upper central baffle plate 22 and disperses to the surroundings, and further collides with the peripheral baffle plate 23 and slides down so as to gather inside, and falls to the central baffle plate 22 at the next position and collides. Thus, by repeating the fall between the central baffle plate 22 and the peripheral baffle plate 23, the mortar or lightweight soil and the foaming agent liquid mixed air are further mixed.
[0025]
As described above, the upper forced mixing unit 3 forcibly stirs and mixes the mortar or lightweight soil and the foaming agent mixed air, and the lower flowing mixing unit 4 mixes the mortar or lightweight soil and the foaming agent. Since the liquid-mixed air is further kneaded, the mortar or lightweight soil and the foaming agent liquid-mixed air are mixed evenly while passing through the mixing mechanism 2, and the mortar or lightweight soil is reliably increased by the foaming agent liquid. The foaming mortar or air milk that can be foamed to the foaming efficiency and reaches the lower end of the flow-down mixing unit 4 is pumped by the flow of air from the take-out pipe 25 to the placement position through the hose connected thereto. .
[0026]
The foamed mortar or air milk formed in this way is used as a material for filling or filling a space in various civil engineering works, building works, piping works, and the like.
[0027]
【The invention's effect】
As described above, according to the present invention, the mixing mechanism for mixing the foaming agent liquid-mixed air and the mortar or lightweight soil has a two-stage structure of the upper forced mixing portion and the flow-down mixing portion provided continuously to the lower end thereof. Since the foaming agent mixed air and the mortar or lightweight soil are forcibly stirred and kneaded by the fixed blade and the rotary blade of the forced mixing part and mixed with the baffle plates arranged in the upper and lower stages of the flow mixing part, the mortar Alternatively, the light soil and the foaming agent liquid-mixed air are mixed evenly, and the mortar or the lightweight soil can be surely foamed by the foaming agent solution, and a foam mortar or air milk with high foaming efficiency can be made.
[0028]
In addition, the mixing mechanism has a two-stage structure consisting of an upper forced mixing section and a flow-down mixing section provided at the lower end of the mixing mechanism, so that the structure is simple and compact. It is advantageous for carrying in and removing from the construction site.
[Brief description of the drawings]
FIG. 1 is a front view showing an entire structure of a foaming apparatus according to the present invention. FIG. 2 is a longitudinal front view showing an enlarged structure of a mixing mechanism of the foaming apparatus according to the present invention.
DESCRIPTION OF SYMBOLS 1 Mixer 2 Mixing mechanism 3 Forced mixing part 4 Downflow mixing part 5 Foaming agent liquid supply pipe 6 Air supply pipe 7 Extraction pipe 8 Flowmeter 9 Flowmeter 10 Chamber 11 Foaming agent mixed air supply part 12 Mortar Or, a lightweight soil supply unit 13, a fixed blade 14, a rotary blade 15, a nozzle 16, a pump 17, a mortar or light soil supply tube 18, a vertical shaft 19, a blade plate 20, a motor 21, a chamber 22, a central baffle plate 23, a surrounding baffle plate 24, a takeout portion 25 Mounting bracket 27 Connection tube

Claims (1)

A mixing device for mixing the foaming agent and air, and a mixing mechanism for mixing the foaming agent-mixed air and mortar or lightweight soil to form foamed mortar or air milk. And a flow mixing unit provided at the lower end thereof, and the forced mixing unit is provided with a foaming agent mixed air supply unit and a mortar or lightweight soil supply unit at the top of the chamber. Is formed with a fixed wing attached to the inner periphery of the chamber and a rotating wing that rotates inside the chamber.The flow mixing unit has baffle plates arranged in multiple stages in the upper and lower sides inside the chamber. A foaming mortar or air milk foaming device formed by providing a foaming mortar or air milk take-out portion at the bottom.

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