KR101370159B1 - Device and method manufacturing autoclaved lightweight concrete for work site-pour - Google Patents

Abstract

Disclosed is a device for manufacturing an autoclaved lightweight concrete for cast-in-place. The disclosed device for manufacturing the autoclaved lightweight concrete for cast-in-place comprises: a movable mixer that stores a mixed cement slurry; a bubble generating unit that includes a foaming device which generates bubbles by blowing compressed air into a foaming agent dilution solution; and a mixer that is provided with the slurry from the movable mixer and the bubbles from the foaming device, after which the autoclaved lightweight concrete is generated by mixing the slurry and the bubbles. [Reference numerals] (15) Foaming agent dilution solution; (17) Supply pump; (19) Compressor; (21) Foaming device; (25) Pressure feed pump; (31) Mixer; (AA) Cast-in-place; (BB) Slurry; (CC) Bubbles

Description

Lightweight foam concrete manufacturing device and construction method for construction site casting {DEVICE AND METHOD MANUFACTURING AUTOCLAVED LIGHTWEIGHT CONCRETE FOR WORK SITE-POUR}

The present invention relates to a lightweight foamed concrete manufacturing apparatus and manufacturing method for small-scale construction site pouring.

In general, autoclaved lightweight concrete (ALC) is a cement secondary product used for floor insulation layers of multi-unit houses, and as a result, the interest in insulation and sound insulation of buildings has been recently increased, and most of the lightweight foam concrete is used.

In order to manufacture and pour such lightweight foamed concrete at a small construction site, a lightweight foamed concrete manufacturing device for construction site casting is used.

1 is a configuration diagram of a conventional lightweight foamed concrete manufacturing apparatus for construction site, Figure 1 to 11 is a raw material feeder, 13 is a water reservoir, 15 is a foam diluent reservoir, 17 is a supply pump, 19 is a compressor, 21 is a foot Aeration 23 represents a mixer and 25 represents a pressure pump.

This lightweight foam concrete production apparatus is largely composed of a raw material input machine 11, a mixer 23, and a bubble generator (A).

The raw material feeder 11 is a device for injecting cement and sand (light aggregate) and the like, and a belt conveyor of a caterpillar system in which a motor is driven at a constant speed is mainly used. A hopper (raw material inlet) is installed at the front end of the belt conveyor to fill raw material in the hopper, and the conveyor belt is rotated by the driving of the motor, so that the raw material filled in the hopper is transferred on the conveyor belt.

The mixer 23 is a functional part in which powder raw material (cement), light weight aggregate (sand), light weight additives, mixed water (water), and bubble groups are added and mixed at the same time. In general, an impeller (screw, propeller type, Turbine type).

Bubble generator (A) is a function of making the foaming agent into a bubble group, a foaming agent diluent storage tank (15) for storing the diluted solution mixed with the foaming agent and water, a supply pump (17) for the nebulizer for pumping the foaming agent diluent, and compression It consists of the compressor 19 which generate | occur | produces air, and the foaming machine 21 which blows compressed air into the foaming agent dilution liquid conveyed by the supply pump 17, and produces | generates a bubble group.

In the conventional lightweight construction site construction apparatus for pouring construction having the above-described configuration, raw materials such as powder cement and sand are introduced into the mixer 23 from the raw material feeder 11, and water is mixed from the water storage tank 13. ), And bubbles generated in the foaming machine 21 are introduced into the mixer 23 at the same time, and mixed (mixed) in the mixer 23 to form lightweight foam concrete, and the pump is pumped to the pouring point through the pump pump 25. do.

However, in the conventional lightweight foamed concrete manufacturing apparatus for the construction site and the manufacturing method using the same, there is a lot of dust in the process of opening the cement bag directly by the operator, moving through the raw material input machine 11, the health of workers and the people around There was a problem, which caused frequent complaints.

In addition, since a large amount of water was required to make the cement into a slurry, it was difficult to supply water, and when the belt conveyor 11 was burned up, the cement was not quantitatively put into the hanger and the worker's hard process. Due to low injection, the surface strength was not constant after the lightweight foamed concrete was placed, which caused problems in the secondary construction.

In addition, conventionally, since the powder cement, water, and bubble groups are simultaneously mixed into the mixer 23 and mixed, the prepared lightweight foam concrete does not contain a fixed amount of bubble groups, and thus, a problem of not being able to obtain high-quality lightweight foam concrete there was.

Republic of Korea Patent Registration 10-0317818 Republic of Korea Patent Registration 10-0336526 Republic of Korea Patent No. 10-0272994

The present invention was devised to solve the conventional problems as described above, and can reduce the occurrence of dust to improve the working environment, while manufacturing a lightweight foam concrete for construction site construction that can produce high-quality lightweight foam concrete and manufacturing method The purpose is to provide.

In addition, the present invention provides an apparatus and method for manufacturing lightweight foam concrete for construction site casting of the improved structure so that the bubble group in the cement slurry can be more easily mixed to include a large amount of bubble group in the cement slurry. The purpose is to provide.

In order to achieve the above object, the lightweight foam concrete manufacturing apparatus for construction site casting of the present invention is a mixed cement slurry is stored, the movable mixer consisting of a truck mixer; Bubble generation means having a foaming machine for blowing the compressed air into the foaming agent diluent to create a bubble group; And a mixer configured to receive the slurry from the movable mixer, and to receive the bubble group from the foaming machine, to mix the slurry and the bubble group to produce a lightweight foam concrete.

A slurry feed hopper installed on the top of the mixer and flowing the slurry supplied from the movable mixer into the mixer, and rubbing the slurry again to form a plurality of air layers in the slurry; Can be.

The slurry supply hopper, the cylindrical body of the upper and lower open; And a plurality of wings installed inside the body, wherein the slurry introduced into the body is rubbed again by the plurality of wings, and an air layer is formed in the slurry and then discharged into the mixer.

The body is formed in a solid shape with both sides open, each of the plurality of wings may be configured to be spaced apart from each other along a spiral shape from the top to the bottom of the body.

Each of the plurality of wings may protrude from the inner surface of the body toward the central portion of the body, and may be configured to have a fan shape that gradually decreases from the top to the bottom of the body.

Incisions are formed at each of the plurality of wing ends, and may be configured to open through the center of the body in the vertical direction.

On the other hand, the construction method of lightweight foamed concrete for construction site pouring is a lightweight foamed concrete using a movable mixer consisting of a truck mixer, a bubble generating means having a foaming machine, and a lightweight foamed concrete manufacturing apparatus for a construction site equipped with a mixer A manufacturing method comprising: a) introducing a cement slurry from the movable mixer into the mixer; b) introducing a bubble group from the foamer into the mixer; And c) mixing the cement slurry and the bubble group in the mixer to produce lightweight foamed concrete.

In addition, the construction method of lightweight foamed concrete for the construction site pouring the construction site lightweight construction site comprising a movable mixer consisting of a truck mixer, a bubble generating means having a foamer, a mixer and a slurry supply hopper installed in the mixer A method for producing lightweight foamed concrete using foamed concrete manufacturing apparatus, comprising the steps of: a) introducing cement slurry from the movable mixer into the mixer through the slurry feed hopper; b) introducing a bubble group from the foamer into the mixer; And c) mixing the cement slurry and the bubble group in the mixer to produce lightweight foamed concrete. In the step a), the slurry passes through the slurry feed hopper and the slurry is again. After mixing, a plurality of air layers are formed in the slurry, and may be configured to be introduced into the mixer.

According to the above, the present invention puts the cement slurry after the pre-mixing process using a movable mixer in the mixer and mixed with the bubble group, there is an effect that can be made of high-quality lightweight foam concrete.

In addition, the present invention is a method of calling a movable mixer, such as a truck mixer to the construction site, and put the slurry of the movable mixer into a mixer and mixed with the bubble group, so that no dust is generated compared to the conventional, belt conveyor (raw material feeder) Since the configuration of the water supply (water reservoir) is not necessary, the configuration is simplified.

In addition, in the present invention, since the slurry of the movable mixer is introduced into the mixer through the slurry supply hopper, the slurry is rubbed again in the course of passing through the slurry supply hopper to form a myriad of air layers in the slurry, and then the mixture is added to the mixer. Since the mixing of the slurry and the bubble group in the mixer is easy to make a high quality lightweight foam concrete, there is an effect of blocking the secondary hole at the source.

1 is a block diagram of a conventional apparatus for manufacturing lightweight foam concrete for construction site pouring,
2 is a block diagram of a lightweight foamed concrete manufacturing apparatus for construction site pouring according to an embodiment of the present invention,
3 is a block diagram of a lightweight foamed concrete manufacturing apparatus for construction site pouring according to another embodiment of the present invention,
Figure 4 is an enlarged perspective view of the slurry feed hopper of Figure 3,
5 is a cross-sectional view taken along the line VV of FIG.
6 is a cross-sectional view taken along line VI-VI of FIG. 4,
7 is a cross-sectional view taken along the line VII-VII of FIG. 4,
FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 4.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, with reference to Figure 2, description will be given of a lightweight foamed concrete manufacturing apparatus for construction site pouring of the present invention. Light-weight foamed concrete manufacturing apparatus for construction site pouring of the present invention is used in small construction sites.

Lightweight foam concrete manufacturing apparatus for construction site casting of the present invention includes a mixer 31, bubble generating means (P), the movable mixer (35).

At this time, the mixer 31 and the bubble generating means (P) is the same as the conventional configuration shown in Fig. 1, the same reference numerals are omitted and description thereof.

The present invention does not mix the powder cement, water and bubble group at the construction site, and moves the movable mixer 35, which stores the cement slurry premixed at another place, to the site, and cement from the movable mixer 35. The slurry is introduced into the mixer 31, the bubble group is introduced into the mixer 31 from the foaming machine 21 of the bubble generating means P, and the cement slurry and the bubble group are mixed in the mixer 31 so as to mix lightweight foam concrete. After is made, it is transferred to the pouring point by the pressure feed pump (25).

Here, the movable mixer 35 may be configured as a truck mixer (remixture) as shown in FIG. 2, but is not limited thereto, and a mixer storing a slurry, such as a large cart for transporting wheels, may be provided in the transport apparatus. If it can be carried on the move can be implemented in a variety of different forms, of course.

As described above, the present invention, by using a movable mixer 35 that is movable (transporting) like a truck mixer, directly put the cement slurry mixed with cement from the movable mixer 35 into the mixer 31, As a method of mixing with the bubble group, as in the prior art, since there is no process of opening the cement bag at the construction site and moving to the belt conveyor, no dust is generated at the construction site.

In addition, the present invention does not put cement, water, and bubble groups separately in the mixer 31 as in the prior art, and mixes the cement slurry of the movable mixer 35, which has undergone a constant mixing process, with the bubble groups, thereby being of high quality and light weight. Foamed concrete can be produced, which has the effect of significantly lowering the defect occurrence rate.

In addition, since the present invention uses the cement slurry of the movable mixer 35, it is not necessary to have difficulty in water supply in the field.

On the other hand, as shown in Figure 3, the slurry supply hopper 40 may be provided on the top of the mixer 31 of the lightweight foamed concrete manufacturing apparatus of the present invention. Hereinafter, the slurry supply hopper 40 will be described with reference to FIGS. 3 to 8.

The slurry feed hopper 40 serves as an inlet port for introducing the cement slurry discharged from the movable mixer 35 into the mixer 31.

Slurry feed hopper 40 includes a body 41 and a plurality of wings (44a ~ i).

The body 41 has an open top and bottom, and is a solid shape of the upper and lower straits. The upper end of the body 41 is provided with a slurry inlet 42, the lower end of the body 41 is provided with a slurry outlet 43, the slurry outlet 43 is formed to communicate with the interior of the mixer 31. .

The wings 44a to i are intended to form a myriad of air layers in the slurry by mixing and remixing the slurry introduced into the body 41. Wings 44a to i are composed of a plurality of are coupled to the inner surface of the body (41).

The wings include first to ninth wings 44a, 44b, 44c, 44d, 44e, 44f, 44g, 44h, 44i. Each wing is formed to be inclined downward by 15 degrees θ with respect to the horizontal line, and are spaced apart from each other along an imaginary spiral S facing from the top to the bottom of the body 41 (see FIG. 5). Each wing has a fan shape protruding from the inner surface of the body 41 toward the center of the body 41. Since the body 41 has a solid shape, the plurality of wings gradually become smaller in the fan shape from the top to the bottom of the body 41. Incisions 45 are formed at the ends of the plurality of wings 44a to i, respectively, so as to penetrate through the center of the body 41 in the vertical length direction.

According to the above configuration, the slurry discharged from the movable mixer 35 is introduced into the body 41 through the inlet port 42, and the slurry is rubbed by the plurality of wings 44a to i, and there are a lot of slurry in the slurry. After the air layer is formed, it is introduced into the mixer 31 through the outlet 43. That is, the slurry comes into contact with the first to third vanes 44a, 44b and 44c inside the body 41, and then slides due to its own weight and falls between the first to third vanes 44a, 44b and 44c. As the slurries are mixed and mixed, an air layer is formed in the slurry. Next, the slurry contacts the fourth to sixth blades 44d, 44e and 44f, and then slides by its own weight to fall between the fourth to sixth blades 44d, 44e and 44f, and the slurry is rubbed. After the seventh to ninth blades 44g, 44h and 44i are contacted, they are dropped between the seventh and ninth blades 44g, 44h and 44i and introduced into the mixer 31 through the discharge port 43.

Meanwhile, the slurry falling through the hollow part 46 is mixed while contacting the cutout parts 45 formed on the plurality of wings, and then exits the body 41. In the present embodiment, the hollow portion 46 is formed by the incision 45 formed at the end of each wing, which is to increase the passage rate of the slurry passing through the body 41. That is, since the incision 45 is not formed at the end of each wing, the rate of passage of the slurry through the body 41 is lowered.

As such, the slurry supply hopper 40 of the present invention forms the slurry supplied from the movable mixer 35 by the plurality of wings 44a to 44i installed in the body 41 in the air layer in the slurry, and then the mixer. Since the air layer is formed, the slurry having the air layer formed therein may be more easily mixed with the bubble group in the mixer 41, thereby allowing the slurry to contain more and more bubble groups. Thus, high quality lightweight foam concrete can be made.

Hereinafter, with reference to FIGS. 3 to 8, a method for manufacturing lightweight foamed concrete using a lightweight foamed concrete manufacturing apparatus for in situ placing according to another embodiment of the present invention will be described.

The cement slurry discharged from the movable mixer 35 is introduced into the mixer 31 through the slurry supply hopper 40, and the bubble group from the foamer 21 of the bubble generating means P is mixed with the mixer 31. Injected into the cement slurry and the bubble group in the mixer 31, the lightweight foamed concrete is made, and then transferred to the pouring point through the pressure pump (25).

At this time, in the present invention, since the slurry discharged from the movable mixer 35 passes through the slurry feed hopper 40, the slurry is rubbed again and thus numerous water layers are formed in the slurry and then introduced into the mixer 31. In the mixer 31, the cement slurry is easily mixed with the bubble group so that a large amount of bubble group is included in the cement slurry, thereby making it possible to produce high-quality lightweight foam concrete.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that many changes and modifications of the present invention can be made without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

15 ... bubble diluent
17.Supply pump
19 ... Compressor
21 ...... foam
25 ... pump pump
31.Mixer
35.Movable Mixer
40 ... Slurry Feed Hopper
41.Body
44a ~ 44i ... wings

Claims (9)

Movable cement slurry is stored, the movable mixer consisting of a truck mixer;
Bubble generation means having a foaming machine for blowing the compressed air into the foaming agent diluent to create a bubble group; And
A mixer configured to receive the slurry from the movable mixer and to receive the bubble group from the foamer, to mix the slurry and the bubble group to produce a light foam concrete;
A slurry feed hopper installed at the top of the mixer and introducing the slurry supplied from the movable mixer into the mixer, and rubbing the slurry again to form a plurality of air layers in the slurry;
The slurry feed hopper,
A tubular body with upper and lower openings; And
It includes; a plurality of wings installed inside the body,
The slurry introduced into the body is rubbed again by the plurality of wings, and after forming an air layer in the slurry, is discharged into the mixer,
The body is formed in the shape of an open collar on both sides,
Each of the plurality of wings is installed at intervals from each other along a spiral shape from the top to the bottom of the body,
Each of the plurality of wings protrudes from the inner surface of the body toward the center portion of the body, the lightweight foamed concrete manufacturing apparatus for a construction site, characterized in that the fan-shaped shape gradually decreases from the top to the bottom of the body.
delete delete delete delete delete The method of claim 1,
Each of the plurality of wing ends are formed with incisions, the construction of lightweight foam concrete for construction site casting, characterized in that to open through the center of the body in the vertical longitudinal direction.










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