KR101976676B1 - Equipment for manufacturing light weight mixed soil - Google Patents

Abstract

The present invention relates to a lightweight mixed soil manufacturing device which manufactures lightweight mixed soil with uniform quality by primarily stirring raw material soil such as construction site soil generated from a construction site in a raw material soil pretreatment hopper to pretreat the same, secondarily stirring the primarily stirred raw material soil to dismantle the same in a dismantling part, and adding a solidification agent and water in a main stirring part. Thus, the lightweight mixed soil manufacturing device can be effective in ground improvement and reinforcement, save construction costs and shorten construction periods. The lightweight mixed soil manufacturing device of the present invention comprises: a raw material soil pretreatment hopper pulverizing clods of supplied raw material soil, mixing the same with water, and stirring the mixture to manufacture pretreated soil; a dismantling part dismantling the pretreated soil transferred from the raw material soil pretreatment hopper to manufacture dismantled soil; a supplying part comprising a soil supplying hopper provided with a discharge hole on a lower part thereof for supplying the dismantled soil transferred from the dismantling part a solidification agent supplying hopper provided with a discharge hole on a lower part thereof for supplying a solidification agent, and a water supplying part for supplying water; a main stirring part stirring the supplied dismantled soil, solidification agent and water supplied from the soil supplying hopper, the solidification agent supplying hopper and the water supplying part, respectively, to manufacture lightweight mixed soil in a slurry state; and a storage tank storing the lightweight mixed soil transferred from the main stirring part.

Description

Equipment for manufacturing light mixed soil {Equipment for manufacturing light weight mixed soil}

The present invention pretreatment by first stirring the raw material soil in the raw material soil pretreatment hopper using the raw material soil, such as on-site generated soil generated in the construction site, and dismantled by the second stirring in the dismantling section and the solidifying agent and water in the main stirring section By adding a light weight mixed soil of homogeneous quality by addition, it is effective for the improvement and reinforcement of the ground, and a light weight mixed soil manufacturing equipment that can reduce the construction cost and shorten the air.

In general, it involves the import and placement of high quality external soil for the filling or replacement of soft ground, the widening of roads, the back filling of structures such as alternating backs, and the filling of working areas. However, if the load on the ground is excessively increased during the ground filling process, it is necessary to separately treat the soft ground under the fill layer.

Accordingly, a technology for reinforcing soil structure of super soft ground using EPS blocks using EPS blocks has been developed (Patent No. 10-0690049).

However, the EPS block has a disadvantage in that strength is low, there is a possibility of long-term settlement, and difficulty in filling by pressure feeding and pipe laying is difficult.

In addition, Patent No. 10-1042281 has been developed a technology for the on-site fluidized soil manufacturing feeder that is used as a backfill material by mixing the solidified material and water in the on-site soil generated during the construction site instead of the EPS block.

However, in the case of the registration technology, there is a problem that it is difficult to produce a backfill material of homogeneous quality due to irregular particle size and water content.

In particular, when the soil is a viscous soil with a large adhesive force is difficult to use geotechnical engineering, it is difficult to utilize most of the soil in the civil engineering site, even if it is used, there is a problem that it is difficult to use on a large scale.

In order to solve the problems described above, the present invention is to produce a light-weight mixed soil by adding a hardening agent and water to the various field-generating soils generated during field construction, raw soil which is a field-producing soil containing waste soil such as viscous soils with high adhesion Efficient processing of the present invention is to provide a lightweight mixed soil manufacturing equipment capable of manufacturing a large-scale lightweight mixed soil of uniform quality, such as unit weight, strength, fluidity.

The present invention according to a preferred embodiment is to prepare a pre-treated soil by pulverizing the soil of the raw material soil supplied and mixed with water, the hopper body and the hopper body provided with an outlet opening is open at the top, selectively opened and lowered A raw material pretreatment hopper consisting of a grinder having a plurality of disks coupled to an outer circumferential surface of the rotating shaft and rotatably coupled with a plurality of grinding blades bent at the sides of each disk to be rotatably provided therein; Dismantling unit for dismantling the pretreatment soil transferred from the raw material soil pretreatment hopper; A supply part for supplying the dismantled soil transported from the dismantling part, the soil supply hopper having a discharge port formed at the lower part, the solidification supply hopper having a discharge port formed at the lower part, and a water supply part for supplying water. ; A main stirring unit for preparing a light-weight mixed soil in a slurry state by stirring the dismantled soil, the solidifying agent and the water supplied from the earth and sand supply hopper, the hardening agent supply hopper and the water supply unit, respectively; And a storage tank in which the light mixed soil transported from the main stirrer is stored. It provides a light mixed soil manufacturing equipment, characterized in that consisting of.

According to another preferred embodiment of the present invention, a screen net is provided at a lower portion of the raw material soil pretreatment hopper, and a first service hopper is provided at a lower portion of the screen net to transfer the filtered mud to the dismantling unit by a transfer conveyor. It provides a lightweight mixed soil manufacturing equipment.

According to another exemplary embodiment of the present invention, the earth and sand supply hopper is provided at a higher position than the dismantled portion, so that the dismantled soil manufactured in the dismantled portion is transported to the soil feed hopper by the bucket elevator. to provide.

In accordance with another aspect of the present invention, there is provided a light-mixed soil production equipment, characterized in that the lower portion of the main stirring portion is provided with a second service hopper for temporarily storing the light-mixed soil in the slurry state of the mixing is completed and transported to the storage tank. to provide.

The present invention according to another preferred embodiment provides a light mixed soil manufacturing apparatus, characterized in that the storage tank is supplied with bubbles generated in the bubble generator is mixed with the light mixed soil.

delete

The present invention according to another preferred embodiment of the present invention provides a light mixed soil manufacturing equipment, characterized in that any one of the plurality of grinding blades is formed bent in the opposite direction to the other grinding blades.

According to another preferred embodiment of the present invention, the grinder rotates in opposite directions and provides a light mixed soil manufacturing equipment, characterized in that it is provided in pairs so that the grinding blades are bent in opposite directions.

The present invention according to another preferred embodiment provides a light mixed soil manufacturing equipment, characterized in that the auxiliary blade is coupled between the grinding blade of the disk.

According to the present invention it is possible to produce a homogeneous lightweight mixed soil in a slurry state through a predetermined treatment process on the site-generated soil generated at the construction site. The lightweight mixed soil manufactured in this way can be used in various ways for filling or replacement of soft ground, widening of roads, backfilling of structures such as alternating backs, and filling of active sites, thus reducing construction costs generated at various construction sites and shortening air. This is possible and economical.

According to the present invention, pre-treatment of raw soil, such as on-site soil, including viscous soil, is pretreated by primary stirring in the raw material soil pretreatment hopper, and disassembled by secondary stirring in the dismantling portion, and the unit weight is added by adding a hardening agent and water in the main stirring portion. Lightweight mixed soil with homogeneous strength, flowability and the like can be produced, which is effective for soil improvement and reinforcement.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the whole structure of this invention light weight mixed soil manufacturing equipment.
2 is a diagram showing a main stirring part.
3 shows a storage tank.
4 is a view showing a dismantling portion and a bucket elevator.
5 is a cross-sectional view showing a raw material soil pretreatment hopper.
6 is a perspective view showing a detailed configuration of a grinder;
7 is a plan view showing an embodiment of a grinder provided in pairs;
8 is a perspective view showing an embodiment of a grinder provided in pairs;
9 is a perspective view showing a grinder coupled to the auxiliary blade.
10 is a perspective view showing an embodiment provided with a pair of grinder coupled to the auxiliary blade.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

1 is a view showing the overall configuration of the light-mixed soil production equipment of the present invention, Figure 2 is a view showing the main stirring portion, Figure 3 is a view showing a storage tank.

As shown in Figure 1, the present invention is a lightweight mixed soil production equipment is a raw soil pre-treatment hopper (1) for preparing a pre-treated soil by crushing the soil mass of the supplied raw soil and mixing and stirring water; Dismantling unit (3) for dismantling the pretreatment soil transferred from the raw material soil pretreatment hopper (1); Soil supply hopper 51 for supplying the dismantled soil transported from the dismantling part (3), and the solidification supply hopper (52) with the discharge port formed in the lower part to supply the solidifying agent Supply unit 5 consisting of a water supply unit 53 for supplying; A main stirring part 6 for preparing lightweight mixed soil in a slurry state by stirring the dismantled soil, the solidifying agent, and the water supplied from the earth and sand supply hopper 51, the hardening agent supply hopper 52, and the water supply unit 53; And a storage tank in which the light mixed soil transferred from the main stirring part 6 is stored. Characterized in that consists of.

In the present invention, in the manufacture of lightweight mixed soil by adding a hardener and water to various on-site soils generated during field construction, the lightweight mixed soil manufacturing equipment capable of producing a lightweight mixed soil with uniform quality such as unit weight, strength, fluidity, etc. It is to provide.

The raw soil pretreatment hopper (1) to crush the soil of the supplied raw soil, and mixed with water to prepare a pre-treated soil.

The raw soil, which is generated on-site at the construction site by a backhoe or the like, is supplied to the raw material soil pretreatment hopper 1.

Water is supplied into the raw material soil pretreatment hopper 1 by a pump (not shown) from a water tank (not shown). Accordingly, in the raw material soil pretreatment hopper 1, the raw material soil is pulverized to a particle size that does not interfere with the feeding, and mixed with the introduced water and stirred until the soil mass of the raw soil is released.

At this time, the water supplied to the raw material soil pretreatment hopper (1) is added only to the minimum amount so that the aggregated lump is released.

When the raw soil supplied to the raw soil pretreatment hopper 1 is stirred for a predetermined time to produce a pretreated soil in a state where the soil mass is crushed and released, the discharge port provided in the raw soil pretreatment hopper 1 after checking the density and flow of the pretreated soil Open and transfer the pretreatment soil to the dismantling section (3).

The dismantling part 3 dismantles the pretreated soil transferred from the raw material soil pretreatment hopper 1 to produce dismantled soil.

As shown in Figure 4, the dismantling portion 3 may be provided with a stirrer 31 therein.

Inside the dismantling unit 3, the pretreatment soil may be dismantled secondly by rotating the stirrer 31, and water may be introduced from the water tank to prevent sedimentation of the granules and to adjust the water content.

The supply part 5 is composed of a soil supply hopper 51, a hardener supply hopper 52 and a water supply unit 53.

The earth and sand supply hopper 51, the solidifying agent supply hopper 52 and the water supply unit 53 is for supplying the dismantled soil, solidifying agent, and water transferred from the dismantling section 3 to the main stirring section 6, respectively. , The earth and sand supply hopper 51, the solidification supply hopper 52 has a discharge port formed in the lower portion, respectively. A discharge port may also be formed in the water supply part 53.

The hardener may be an equivalent hardener capable of exhibiting the design strength of Portland cement (KS L 5201), blast furnace slag cement (KS L 5210) or lightweight mixed soil.

Water may be supplied to the water supply unit 53 by a pump in a water tank.

A load cell (not shown) may be provided in the earth and sand supply hopper 51, the solidification supply hopper 52, and the water supply unit 53, and the contents are determined by controlling the opening and closing of the corresponding discharge port according to the measured value of each load cell. The control unit 9 to be supplied may be provided.

The control unit 9 is also adjustable drive of the stirrer 61 provided in the main stirring section 6 to be described later.

The main stirrer 6 prepares a light-weight mixed soil in a slurry state by stirring the dismantled soil, the solidifying agent and the water supplied from the earth and sand supply hopper 51, the hardening agent supply hopper 52, and the water supply unit 53, respectively. .

As shown in FIG. 2, the stirrer 61 is provided inside the main stirrer 6 to mix disintegrated soil, a hardener and water supplied into the main stirrer 6.

In the main stirring part 6, the dismantled soil, the solidifying agent and the water should be uniformly stirred, so that the rotating shaft of the stirrer 61 is disposed in the transverse direction so that the light mixed soil of the upper, lower, left and right in the main stirring part 6 is evenly mixed. It is desirable to.

When the disintegrated soil, the solidifying agent and the water are stirred for a predetermined time or more, and a slurry mixture is formed in a slurry state, the mixed lightweight soil is discharged through the discharge port 62 and transferred to the storage tank 8.

The storage tank (8) stores the light mixed soil of the slurry state transferred from the main stirrer (6).

As shown in Figure 3, the storage tank (8) is provided with a stirrer (81), it can be configured to maintain a homogeneous state of the light mixed soil supplied by the rotation of the stirrer (81).

On the other hand, although not shown in the drawing, the storage tank 8 may be provided with a pressure pump for pumping the light mixed soil stored in the storage tank 8 to the injection pipe.

The pressure pump pumps the light mixed soil in the storage tank 8 to an injection pipe (not shown) and injects it into the construction site.

According to the present invention as described above it is possible to produce a homogeneous lightweight mixed soil in the form of slurry through a constant treatment using the on-site soil generated at the construction site as raw soil. The lightweight mixed soil manufactured in this way can be used in various ways for filling or replacement of soft ground, widening of roads, backfilling of structures such as alternating backs, and filling of active sites, thus reducing construction costs generated at various construction sites and shortening air. This is possible and economical.

In particular, raw soil, such as field-produced soil, is pretreated by primary stirring in the raw material soil pretreatment hopper (1) and secondaryly stirred and dismantled in the dismantling unit (3), so that light mixed soil of homogeneous quality can be produced. And effective for reinforcement.

1 and 4, the screen net 21 is provided at the lower part of the raw material soil pretreatment hopper 1, and the filtered mud is dismantled at the lower part of the screen net 21 by the transfer conveyor 22. A first service hopper 2 for transferring to the unit 3 may be provided.

That is, the first service hopper 2 including the screen net 21 and the conveying conveyor 22 may be provided under the raw material soil pretreatment hopper 1.

The screen net 21 filters out raw soil, tree roots, and gravel having a particle diameter (for example, 5 mm or 10 mm or more) that is difficult to control, knead and inject mud in a later process.

The miscellaneous goods removed by the screen net 21 are collected and discarded separately.

One end of the first service hopper (2) is provided with a conveying conveyor 22 can transfer the mud passing through the screen net 21 to the dismantling unit (3) at a constant speed.

In other words, in the raw soil pretreatment hopper 1, after the crushing of the soil mass and mixing and stirring with water are completed, the discharge hole provided in the raw soil pretreatment hopper 1 is opened to mud inside the raw soil pretreatment hopper 1. The discharged mud is transported into the first service hopper 2 through the screen net 21 of the first service hopper 2 and then transferred to the dismantling unit 3 through the transfer conveyor 22. .

As shown in Figure 1, 2, the second service hopper 7 for temporarily storing the light-mixed soil in the slurry state of the mixture is completed and transported to the storage tank (8) in the lower part of the main stirring part (6) It may be provided.

The second service hopper 7 may be disposed below the main stirrer 6 to collect lightweight mixed soil in a slurry state discharged from the main stirrer 6 and transfer it to the storage tank 8.

To this end, the light-mixed soil in the slurry state in which the stirring is completed in the main stirring part 6 is discharged through the discharge port 62 positioned below the main stirring part 6. The lightweight mixed soil is transferred to the storage tank 8 via the second service hopper 7 positioned below the main stirring part 6, specifically, below the discharge port 62.

In consideration of the transfer efficiency of the light mixed soil, the second service hopper 7 is preferably formed to a size corresponding to the stirring capacity of the main stirring part 6.

The storage tank 8 may be configured to be supplied with bubbles generated by the bubble generator (not shown) to be mixed with the light mixed soil.

The light mixed soil supplied to the storage tank 8 may be configured to be mixed with the hard mixed soil by supplying bubbles to the storage tank 8 so as to exhibit a load reducing effect equivalent to that of the EPS block.

Accordingly, the bubbles supplied into the storage tank 8 are mixed with the light mixed soil by the agitator 81 inside the storage tank 8 to reduce the light mixed soil.

The bubble generating device may be prepared by mixing a foaming agent and water to produce a foaming agent, and may generate bubbles by using air pressure.

4 is a view showing a dismantling portion and a bucket elevator.

As shown in Figure 1, Figure 4, the soil supply hopper 51 is provided at a position higher than the dismantling section 3, the dismantled soil produced in the dismantling section 3 is the earth and sand by the bucket elevator (4) It can be configured to be transferred to the feed hopper (51).

The earth and sand supply hopper 51, the solidification supply hopper 52, and the water supply unit 53 constituting the supply unit 5 are the main stirring unit 6 or the dismantling unit for discharging the contents to the main stirring unit 6. It may be provided at a position higher than (3).

Accordingly, it is possible to transfer the dismantled soil to the upper soil supply hopper 51 by the bucket elevator 4 which transfers the contents by the bucket 41 so that the water content adjusted by the dismantling portion 3 can be maintained.

A plurality of buckets 41 may be provided.

The bucket elevator 4 is disposed in the vertical direction to transfer the bucket 41, it is possible to minimize the space occupied by the equipment is efficient in terms of space utilization.

In addition to the bucket elevator 4, a slurry pump (not shown) may be used in consideration of site conditions.

5 is a cross-sectional view showing a raw material soil pretreatment hopper.

As shown in Figure 5, 6, etc., the raw material soil pretreatment hopper (1) is the hopper body 11 and the hopper body 11 is provided with a discharge port 111 is opened at the top, and selectively opened and closed at the bottom A plurality of disks 122 are coupled to the outer circumferential surface of the rotation shaft 121 to be rotatably provided in the interior thereof, and a pulverizer in which a plurality of grinding blades 123 bent to the side of each disk 122 are coupled to each other. 12) can be configured.

The raw material soil pretreatment hopper 1 may be composed of a hopper body 11 and a crusher 12.

Since the hopper body 11 is open at the top, raw soil may be introduced into the hopper body 11 through the open top.

The lower portion of the hopper body 11 is provided with a discharge port 111 that is selectively opened and closed.

Accordingly, when the raw soil introduced into the hopper body 11 is pulverized by the grinder 12 and the pretreated soil is generated, the discharge port 111 is opened to disassemble the pretreated soil 3 in the lower dismantled portion 3 or the first. It can be discharged to the service hopper (2).

The pulverizer 12 is for pulverizing the raw soil introduced into the hopper body 11, and combines the plurality of disks 122 to the outer circumferential surface of the rotation shaft 121 rotatably provided in the hopper body 11. Then, the plurality of grinding blades 123 are coupled to each disk 122 side.

At this time, the grinding blade 123 is the end is bent in a direction perpendicular to the front or rear of the rotary shaft 121 is configured to be bent in a L-shape as a whole.

When the grinding blade 123 is formed bent by the letter "A", the grinding blade 123 may grind the raw soil in two directions, thereby increasing the grinding efficiency.

The bent portion of the grinding blade 123 in the L-shape protrudes out of the disk 122.

As the rotary shaft 121 of the grinder 12 rotates, soil soil mass is crushed by the side blades of the grinding blade 123.

6 is a perspective view illustrating a detailed configuration of a grinder.

As illustrated in FIG. 6, one of the plurality of grinding blades 123 may be configured to be bent in a letter at opposite directions to the other grinding blades 123b.

Referring to the case where the four grinding blades 123 are coupled to one disk 122 as shown in FIG. That is, three grinding blades 123b of the four grinding blades 123 may be formed to be bent toward the letter A, and one of the grinding blades 123a may be configured to be bent toward the letter A.

Accordingly, the grinding blade 123a that is bent backward is maintained so that the raw soil crushed by the grinding blade 123 coupled to the disk 122 located at the rear is not separated to the outside and is maintained inside the grinding blade 123 again. Therefore, as a result, there is an effect of increasing the grinding efficiency.

7 is a plan view showing an embodiment of a pair of mills, Figure 8 is a perspective view showing an embodiment of a pair of mills.

As illustrated in FIGS. 7 and 8, the grinder 12 may be provided in a pair so that the grinders 12 rotate in opposite directions and the grinding blades 123 are bent in opposite directions.

The grinder 12 may be provided side by side so as to be spaced apart from each other so that the raw material soil introduced into the hopper body 11 of the raw material soil pretreatment hopper 1 may be quickly and homogeneously crushed.

At this time, the grinding blades 123 of each of the grinders 12 are opposite to each other so that the raw material soil separated from the grinder 12 on one side may flow into the grinding blade 123 of the other grinder 12 and be ground again. Direction can be formed. And each grinder 12 can be rotated in mutually opposite directions.

9 is a perspective view showing a grinder combined with an auxiliary blade, Figure 10 is a perspective view showing an embodiment provided with a pair of grinder combined with an auxiliary blade.

As illustrated in FIGS. 9 and 10, the auxiliary blade 124 may be coupled between the grinding blades 123 of the disk 122.

The auxiliary blade 124 may be formed to be narrower than the width of the grinding blade 123 to couple the end portion to the side of the disk 122 to be located between the adjacent grinding blade 123.

The auxiliary blade 124 provided between the neighboring grinding blades 123 finely grinds the finely ground raw soil between the grinding blades 123.

That is, the auxiliary blade 124 pulverizes the pulverized raw soil of the front or rear of the grinding blade 123.

The auxiliary blade 124 may be twisted in a screw form unlike the grinding blade 123 so as to grind the raw soil which is not ground by the grinding blade 123.

The auxiliary blades 124 may be provided not only when only one grinder 12 is disposed but also provided in each of the grinders 12 provided as a pair as shown in FIG. 10.

The auxiliary blade 124 may also be formed to be bent A-shape, the plurality of auxiliary blades 124 may be formed to be bent in the opposite direction to each other.

1: raw material pretreatment hopper 11: hopper body
111: discharge port 12: grinder
121: axis of rotation 122: disk
123: grinding blade 124: auxiliary blade
2: 1st service hopper 21: screen network
22: transfer conveyor 3: dismantling
31: stirrer 4: bucket elevator
41: bucket 5: supply unit
51: earth and sand supply hopper 52: solidified material supply hopper
53: water supply unit 6: main stirring unit
61: stirrer 62: discharge port
7: 2nd Service Hopper 8: Storage Tank
81: stirrer 9: control unit

Claims (9)

The hopper body 11 and the hopper body 11 are provided with a discharge hole 111 that is open at the upper part and selectively opens and closes at the lower part, by crushing the soil of the supplied raw soil and mixing and stirring water. A plurality of disks 122 are coupled to the outer circumferential surface of the rotating shaft 121 to be rotatably provided in the inside thereof, and a plurality of grinding blades 123 bent to a side of each disk 122 are coupled to the grinder. Raw material soil pretreatment hopper (1) consisting of (12);
Dismantling unit (3) for dismantling the pretreatment soil transferred from the raw material soil pretreatment hopper (1);
Soil supply hopper 51 for supplying the dismantled soil transported from the dismantling part (3), and the solidification supply hopper (52) with the discharge port formed in the lower part to supply the solidifying agent Supply unit 5 consisting of a water supply unit 53 for supplying;
A main stirring part 6 for preparing lightweight mixed soil in a slurry state by stirring the dismantled soil, the solidifying agent, and the water supplied from the earth and sand supply hopper 51, the hardening agent supply hopper 52, and the water supply unit 53; And
A storage tank 8 in which the light mixed soil transported from the main stirring part 6 is stored; Lightweight mixed soil manufacturing equipment, characterized in that consisting of.
In claim 1,
A screen net 21 is provided below the raw material pretreatment hopper 1, and a first service for transferring the filtered mud to the dismantling unit 3 by the transfer conveyor 22 is provided below the screen net 21. Lightweight mixed soil manufacturing equipment, characterized in that the hopper (2) is provided.
In claim 1,
The earth and sand supply hopper 51 is provided at a position higher than the dismantling portion 3, characterized in that the dismantled soil produced in the dismantling portion 3 is transferred to the soil feed hopper 51 by the bucket elevator (4). Lightweight mixed soil manufacturing equipment.
In claim 1,
Lightweight mixed soil manufacturing equipment, characterized in that the lower portion of the main stirring part 6 is provided with a second service hopper (7) for temporarily storing the light mixed soil in the slurry state is completed mixing and transported to the storage tank (8) .
In claim 1,
The storage tank (8) is a light mixed soil manufacturing equipment, characterized in that the bubble generated in the bubble generator (not shown) is supplied and mixed with the light mixed soil.
delete In claim 1,
One of the plurality of grinding blades (123) of the grinding blade (123a) is a light mixed soil manufacturing equipment, characterized in that formed in the opposite direction bent in the letter "A" to the other grinding blade (123b).
In claim 7,
The grinder 12 is rotated in the opposite direction to each other, the light mixed soil manufacturing equipment, characterized in that provided in a pair so that the grinding blades 123 are bent in the opposite direction.
In claim 1,
Light-weight mixed soil manufacturing equipment, characterized in that the auxiliary blade 124 is coupled between the grinding blade 123 of the disk 122.

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