KR101006374B1 - Enhanced bucket for excavator and Method for clean up contaminated soil using the same - Google Patents

Abstract

An improved excavator bucket according to the present invention is a bucket having a mixing chamber inside and having an inlet and an outlet at the top and bottom, respectively, and discharged by mixing a material installed inside the bucket at the outlet side. And a driving unit provided at a side of the bucket to drive the mixer, wherein the mixer is provided with a plurality of driving shafts having a plurality of mixing blades, and the mixing blades of each of the driving shafts have a toothed blade. It is designed and manufactured to adjust the play and to sort the soil of the desired size, and is arranged so as to be staggered with the mixing blades of other adjacent drive shafts to form a zigzag gap between the drive shafts so that the material can be pulverized and mixed and discharged. Mixing of contaminated soil and decomposition / stabilizer is quick and easy Has the effect of losing.

Excavator, Bucket, Polluted Soil, Purification, Microorganism, Hydrogen Peroxide, Mixed Wings, Drive Shaft

Description

Improved bucket for excavator and method for clean up contaminated soil using the same}

The present invention relates to an improved excavator bucket, and in particular, it is designed and manufactured to select a material of a certain size or more in the bucket and adjust the clearance of the toothed wing to select the soil of the desired size (size) to contaminate soil and decomposition. The present invention relates to an improved excavator bucket capable of mixing / purifying a stabilizer and a method for purifying contaminated soil using the same.

In general, excavator stubilizers are installed at the boom tip of an excavator to excavate, crush, and replenish the deficiencies of conventional soils in order to bring sufficient properties as roadbeds and roadbeds when making roadbeds and roadbeds. Gravel, crushed stone, etc.) or reinforcing additives (cement, asphalt, etc.) are mixed and improved.

Referring to Figure 1, looks at a conventional excavator strubilizer.

The conventional excavator strubilizer 1 is configured such that a bucket 3 having a plurality of holes 5 formed at the bottom thereof can be mounted and used at the tip of the boom 2.

A mixer 7 is installed inside the bucket 3, and the mixer 7 has a configuration in which a plurality of mixing wings 10 are coupled to the drive shaft 8, and is provided at the side of the bucket 3. It is configured to be driven by a motor (not shown).

The excavator strubilizer 1 is installed inside the bucket 3 when the motor provided on the side of the bucket 3 is operated after the soil and the reinforcing member are put into the bucket 3. The drive shaft 8 is rotated, and the mixing blades 10 respectively coupled to the drive shaft 8 are guided downward while mixing the soil and reinforcing additives, etc., which are introduced into the bucket 3, and then the soil and reinforcing additives. The mixture of the back is discharged to the outside through the hole 5 formed in the lower side of the bucket (3).

However, as described above, the conventional excavator stribilizer 1 is configured to mix soil and reinforcing additives while rotating in the state where only one mixer 7 is located at the center of the bucket 3. When an excessive amount of soil or additives are added to (3), an excessive load is applied to each of the mixing blades 10, which makes it difficult to rotate the drive shaft 8, thereby deteriorating work efficiency. 8) the mixing blades 10 are installed and the holes 5 formed under the bucket 3 are large so that the soil is discharged before the mixing is performed. There is also a problem in that the mixing performance is significantly lower.

The present invention has been made in order to solve the above problems, by having a mixed blade intersecting a plurality of drive shafts by adjusting the clearance of the toothed wing to be designed and manufactured to enable the soil selection of the desired size gravel, soil mass Another object is to provide an improved excavator bucket for easily crushing and sorting winter frozen soil, landfill waste, and the like to a specific particle size.

In particular, the present invention is designed and manufactured so as to select the soil of the desired size by adjusting the play of the saw blade while forming a zigzag gap in the state that the adjacent mixing blades are cross-arranged and install the drop control device at the bottom to mix and contact It can be controlled easily so that it can be crushed into homogeneous fine particle soil such as contaminated soil lumps, winter frozen soil crushing, etc. according to the characteristics of soil contaminated with heavy metals and organic compounds. It is designed to sort, grind and mix irrespective of freezing soil, so it is expected to improve the mixing performance and to improve the workability by eliminating the need for remixing. The purpose is to provide.

In addition, the present invention is provided with an injector capable of controlling the injection amount on the upper and lower left and right sides of the bucket so that the oxidizing agent such as liquid microorganism and hydrogen peroxide solution can be easily added to facilitate mixing and crushing of contaminated soil and oxidizing agent. It is an object of the present invention to provide an improved excavator bucket and an organic and heavy metal contaminated soil purification method using the same that can be contaminated decomposition by increasing the contact area of contaminated soil, oxygen, and oxidizing agent through.

An improved excavator bucket according to the present invention for realizing the above object is a bucket having a mixing chamber therein and an inlet and an outlet respectively at the top and the bottom thereof, and a material installed inside the bucket at the outlet side to mix the substances introduced therein. And a mixer configured to be discharged to each other, and a driving part provided at a side of the bucket to drive the mixer, wherein the mixer includes a plurality of driving shafts having a plurality of mixing vanes, and mixing blades of each driving shaft are adjacent to each other. It is arranged to be mixed with the mixing blade of the drive shaft and designed and manufactured to adjust the clearance of the toothed wing to select the soil of the desired size, so as to form a zigzag gap between each drive shaft and to pulverize and discharge the material. , So that the decomposing agent or stabilizer can be put into the bucket The nozzle and the hose connected to the nozzle, the injection device consisting of a support structure for supporting them is integrally installed, the discharge port is characterized in that the drop control device is installed to prevent the mixture from being discharged or to adjust the drop dwell time.

Here, the outlet of the bucket preferably has a sawtooth protrusion to intersect with the mixing blades of the drive shaft disposed at the outermost of the plurality of drive shaft to form a zigzag clearance.

In addition, the drive unit is provided with a drive sprocket provided on the shaft of the hydraulic motor, a driven sprocket provided on one side of the drive shaft chained to the drive sprocket, and the power transmission gears that are engaged with each other in the state provided on each drive shaft to transfer power It is preferable to comprise.

In order to realize the above-mentioned problems, a method for purifying soil with organic matter and heavy metal using the improved excavator bucket according to the present invention is a method for purifying soil using the improved bucket for excavator, including landfill waste accumulated in a floor or a specific space or A first step of placing contaminated soil in a bucket; After the first step, a second step of injecting the disintegrating agent or stabilizer into the contaminated soil contained in the bucket by operating the spraying device integrally provided in the bucket; After the second step, by rotating the plurality of drive shafts provided in the bucket to adjust the play of the toothed mixing blades installed on each drive shaft to enable the soil selection of the desired size and contaminated soil inside the bucket while rotating the mixing blades And the disintegrator or stabilizer is mixed and discharged to the outside through the outlet of the lower part of the bucket. And a third step of discharging the contaminated soil while adjusting the contact time.

An improved excavator bucket and a contaminated soil purification method using the same according to the present invention have the following effects.

First, since the present invention is configured to mix, pulverize, and discharge the materials introduced into the bucket by using mixing blades intersecting with a plurality of drive shafts, mixing of contaminated soil and decomposition / stabilizing agent is quick and easy. Has the effect.

In addition, the present invention is designed and manufactured to adjust the clearance of the saw blades in the state that the adjacent mixed wings are cross-arranged to enable the selection of the soil of the desired size, forming a zigzag gap, while forming a zigzag gap, fine soil such as contaminated soil lumps, winter frozen soil crushing It can be crushed into granular soil and can be sorted and mixed regardless of dry and wet soils such as gravel and concrete, and regardless of freezing soil. It becomes unnecessary and has an effect which can improve workability.

In addition, the present invention, the injection device is integrally provided in the bucket so that the decomposition / stabilizer, such as liquid microorganisms or hydrogen peroxide solution can be easily added, the operation to mix and discharge the decomposition / stabilizer after the contaminated soil in the bucket Only by promoting the decomposition of hydrocarbons in contaminated soil can increase the removal rate of TPH (Total Petroleum Hydrocarbon), and to increase the efficiency of stabilization of heavy metals have the effect of improving the purification efficiency of contaminated soil. In addition, the present invention, it is possible to treat a large amount of contaminated soil in a short time according to the improvement of the work efficiency has the effect of reducing the cost of contaminated soil treatment.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a side configuration diagram showing an improved excavator bucket according to the present invention, Figure 3 is a plan configuration diagram of an improved excavator bucket according to the invention, Figure 4 is an exemplary view showing the internal structure of the drive unit.

As shown in the drawing, the improved excavator bucket 30 according to the present invention includes a bucket 31 having a mixing chamber M therein and an inlet 32 and an outlet 33 formed at the top and the bottom thereof, respectively. A mixer 40 provided inside the bucket 31 and configured to mix and discharge a plurality of substances (polluted soil + decomposition / stabilizers, etc.) introduced into the bucket 31; It comprises a drive unit 50 for driving the mixer 40.

Each configuration of the improved excavator bucket 30 according to the present invention will be described in detail as follows.

First, the bucket 31 is configured to hold the soil by digging or scraping, and the upper portion is relatively wide, preferably formed in a shape that gradually narrows toward the lower, but is not necessarily limited to this, depending on the implementation conditions The shape and structure can of course be variously modified.

The bucket 31 is formed with an inlet 32 through which the upper surface is completely opened and the inflow of soil, etc., and an outlet 33 having a structure in which all or part of the bottom surface is opened. The outlet 33 may be provided with a structural table (for example, 35 in FIG. 3) for dividing the outlet 33. In addition, a drop control device may be installed to prevent the mixture from being discharged to the discharge port 33 or to adjust the drop dwell time. Although not shown in the drawings, such a drop control device is designed to vary depending on the implementation conditions if the structure that can adjust the opening and closing amount of the outlet 33 while moving to the slide structure in the state supported by the body of the bucket 31 Can be installed.

The bucket 31 is provided with a boom connecting pin 34 so that the boom 20 of the excavator can be coupled to the rear surface. One or two or more boom connecting pins 34 may be installed.

In addition, a hydraulic motor 51 constituting the driving unit 50 may be installed at one side of the rear surface of the bucket 31, and the hydraulic motor 51 may be provided at a side of the bucket 31. The gear box 52 is installed to drive the mixer 40 with the power generated by the same.

The front surface of the bucket 31 is generally formed to scrape the soil or sand, including contaminated soil to be contained in the bucket 31.

Next, the mixer 40 is provided with a plurality of drive shafts 41 having a plurality of mixing vanes 43.

4 shows the configuration in which four driving shafts 41 are installed, four driving shafts 41 are arranged side by side on the lower side of the bucket 31, that is, the outlet 33.

Each of the four drive shafts 41 is provided with mixing blades 43 having a serrated structure by welding or the like at regular intervals. Each of the mixing blades 43 is a mixing blade 43 of another adjacent drive shaft 41. ) Are staggered with each other.

That is, as shown in FIG. 3, the mixing blade 43 of one drive shaft 41 is disposed to be sandwiched between the mixing blades 43 of the other driving shaft 41 adjacent thereto, and the play of the toothed blade is adjusted to adjust the clearance of the desired size. Designed and manufactured to enable soil selection, it is configured to form a zigzag gap (C) between each drive shaft 41 to mix and discharge the material contained in the bucket 31.

Such a mixer 40 is not necessarily limited to four drive shafts 41, but may be constituted of two or three or five or more drive shafts and mixing blades provided on the drive shafts as necessary.

On the other hand, the discharge port 33 of the bucket 31 also intersects with the rotary vanes 43 of the drive shaft 41 disposed at the outermost of the plurality of drive shafts 41 to form a jagged jagged gap 36 Is preferably configured to have

Therefore, the mixture discharged through the outlet 33 of the bucket 31 is designed and manufactured to adjust the clearance of the toothed mixing blades provided on the four drive shaft 41 to enable the soil selection of the desired size mixed wings ( It is possible to be discharged after passing through the zigzag clearance C between 43) and between the toothed projection 36 of the bucket 31, so that it can be discharged in a mixture of uniform size and also mixed Efficiency will also increase.

Next, referring to FIG. 4, the drive unit 50 is configured to rotate the drive shaft 41 by receiving power from the shaft of the hydraulic motor 51, and the power transmission structure is known according to the implementation conditions. Various configurations can be made using the power transmission structure.

In the drawing of this embodiment, the drive sprocket 53 is provided in the shaft of the hydraulic motor 51, and the driven sprocket 54 is provided in the one drive shaft 41, and the two sprockets 53 and 54 are connected to the chain 55. As shown in FIG. The following shows an example of connecting power. And, each drive shaft 41 shows an example configured to receive power by engaging the power transmission gears 57 provided on each axis.

And the drive unit 50 having the power transmission structure as described above is preferably configured to protect the inside by installing the gear box 52 on the side of the bucket (31).

On the other hand, the inlet port 32 side of the bucket 31 may be configured injecting device 60 that can add a supplement or reinforcing additive in the bucket 31.

The injection device 60 is provided with a nozzle 61 at an end thereof, and a hose 62 and a supporting structure connected to the nozzle 61 are supported to support the bucket 31. Of course, the means for supplying the spray material to the injection device 60 is preferably configured to be connected to the hose 62 in a state where it is not configured in the bucket 31 and installed in another structure.

In the drawings of the embodiment according to the present invention shows a configuration in which the injection device 60 is installed on the inlet side of the bucket 31, according to the embodiment conditions, the lower side of the outlet 33 of the bucket 31, that is, the outside of the bucket It is also possible to configure so that it can be installed to spray the material discharged through the outlet.

The material to be sprayed into the bucket 31 by using the injector 60 as described above injects the liquid microorganism, hydrogen peroxide, stabilizer into the soil contained in the bucket.

When the hydraulic motor 51 of the drive unit 50 is operated in such a state, a plurality of drive shafts 41 (four in this embodiment) are rotated, and the toothed mixing blades provided on the respective drive shafts 41 ( As the 43 rotates, the contaminated soil and the hydrogen peroxide solution contained in the bucket 31 are mixed and discharged to the outside through the outlet 33 under the bucket 31.

At this time, the mixture of the soil discharged through the outlet 33 of the bucket 31 and the hydrogen peroxide solution is designed, manufactured and mixed to adjust the clearance of the sawtooth mixing blades of each drive shaft 41 to enable the soil selection of the desired size While passing through the zigzag gap (C) between the wings 43, the properties are discharged to the lower while finely pulverized and mixed to a predetermined size or less.

In addition, since the four drive shafts 41 rotate simultaneously, the mixture is discharged uniformly in the space C of five lines between the drive shaft 41 and the drive shaft 41, including the outermost part of the discharge port 33, In time, the homogeneous mixture can be quickly processed and discharged.

With regard to the mixed discharge treatment performance of the present invention, it can be confirmed through the following test results, it looks at.

 Hydrocarbon-contaminated soil and soil contaminated with heavy metals (lead, Pb) are the results of the improved test using the improved excavator bucket 30 according to the present invention.

Table 1 Table of TPH Concentration Changes in Soil Contaminated with Hydrocarbons

Measurement date and time Sample 1
(TPHppm) Sample 2
(TPHppm) Sample 3
(TPHppm) 2007.12.05 1553 1200 1000 2007.12.07 1553 1000 700 2007.12.09 1553 700 450 2007.12.13 1553 651.56 420.22

[Table 2] Changes in Pb Concentrations of Soil Contaminated with Heavy Metals

Measurement date and time Sample 1
(TPHppm) Sample 2
(TPHppm) Sample 3
(TPHppm) 2007.12.05 1230 1230 1230 2007.12.07 1280 630 430 2007.12.09 1240 580 270 2007.12.13 1230 530 180

In Table 1, sample 1 is a contaminated soil TPH (total petroleum hydrocarbon) concentration, sample 2 is a TPH concentration measured after mixing with a hydrogen peroxide solution, etc. in an excavator bucket 31 by a conventional method, sample 3 is the present invention TPH concentration measured after mixing with hydrogen peroxide solution and the like using the improved bucket bucket 30 according to.

In Table 2, sample 1 is a contaminated soil lead (Pb) concentration, sample 2 is a bucket for excavators according to a conventional traditional method is a lead (pb) concentration measured after mixing with stabilizers, etc., sample 3 is the present invention Lead (Pb) concentration measured after mixing with a stabilizer and the like using the improved bucket bucket 30 according to.

Comparing these test results, Sample 3 according to the present invention had a TPH removal rate of 73% on the last day (Dec. 13, 2007), and lead (Pb) showed a removal rate of 85.4%, while Sample 2 according to the prior art. Is 53% for TPH and 58% for lead (Pb).

As such, when using the improved excavator bucket 30 according to the present invention, it can be confirmed that the purification efficiency of the contaminated soil can be greatly improved.

Figure 1 is a side cross-sectional view showing a strubilizer for a conventional excavator,

2 is a side configuration view showing an improved excavator bucket according to the present invention;

3 is a plan configuration diagram of an improved excavator bucket according to the present invention;

Figure 4 is a schematic illustration showing the internal structure of the drive unit of the improved excavator bucket according to the present invention.

Claims (4)

A bucket having a mixing chamber therein, each having an inlet and an outlet at the top and the bottom thereof, a mixer installed at the outlet side inside the bucket to mix and discharge the substances introduced therein; Including a drive for driving the mixer, The mixer is provided with a plurality of drive shafts having a plurality of mixing blades, the mixing blades of each drive shaft is designed and manufactured to adjust the play of the toothed blades and to select the soil of the desired size, as well as the mixing blades of other adjacent drive shafts Arranged alternately with each other to form a zigzag gap between each drive shaft is configured to discharge the material by pulverizing, mixing, The bucket is integrally provided with an injection device comprising a nozzle, a hose connected to the nozzle, a support structure for supporting them, so as to inject a disintegrator or stabilizer into the bucket, The outlet is an improved excavator bucket, characterized in that the drop adjustment device is installed to prevent the mixture is discharged or to adjust the dwell time. The method according to claim 1, An outlet of the bucket is an improved excavator bucket, characterized in that it has a sawtooth protrusion to intersect with the mixing blades of the drive shaft disposed on the outermost of the plurality of drive shaft to form a zigzag clearance. The method according to claim 1 or 2, The drive unit includes a drive sprocket provided on the shaft of the hydraulic motor, a driven sprocket provided on one side of the drive shaft and chained to the drive sprocket, and power transmission gears that are engaged with each other in the state provided on the respective drive shafts to transfer power. Improved excavator buckets, characterized in that configured to. A method for purifying contaminated soil using an improved excavator bucket according to claim 1 or 2, A first step of containing the landfill waste or contaminated soil accumulated in the floor or a specific space in the bucket; After the first step, a second step of injecting the disintegrating agent or stabilizer into the contaminated soil contained in the bucket by operating the spraying device integrally provided in the bucket; After the second step, by rotating the plurality of drive shafts provided in the bucket to adjust the play of the toothed mixing blades installed on each drive shaft to enable the soil selection of the desired size and contaminated soil inside the bucket while rotating the mixing blades And the disintegrator or stabilizer is mixed and discharged to the outside through the outlet of the lower part of the bucket, and the drop dwell time is adjusted using the drop control device provided at the outlet, so as to mix the contaminated soil with the disintegrant and stabilizer, Polluted soil purification method using an improved excavator bucket characterized in that it comprises a third step of discharging contaminated soil while adjusting the contact time.

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