KR20170132524A - Drum type apparatus for crushing and sorting of contamination soil - Google Patents

Abstract

The present invention relates to a wet-type drum crushing apparatus for selecting and crushing contaminated soil, intended to sort and separate contaminated soil by predetermined particle diameter and then release the same. More specifically, the wet-type drum crushing apparatus comprises: a transfer drum having an inlet at one side to introduce soil to be selected to the inside and an outlet on the other side, while the inside is divided into a first space and a second space by a virtual division region; a selection drum integrally driven by being coupled on the other side of the transfer drum, having aperture parts on each side to introduce soil released from the outlet on the transfer drum, and including an outer side having a mesh with a specific pores to separate and release soil with smaller diameter than the pores while soil with larger diameter than the pores is released through the aperture part on the other side; and a driving unit applying rotatory force to the transfer drum.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wet type drum crushing apparatus for crushing and sorting contaminated soil,

The present invention relates to a wet type drum crushing apparatus for crushing and sorting contaminated soil for sorting and discharging contaminated soil by a set particle diameter.

Since the Industrial Revolution, today's industries have been developed almost entirely based on petroleum energy, and today's standard of living has improved to a level not comparable to that before the Industrial Revolution, but the environmental pollution accompanying the development of the industry It is becoming a serious problem that threatens life.

Environmental pollution can be classified into air pollution, water pollution and soil pollution. Among them, soil pollution poses a serious threat to food production. In addition to causing serious pollution, it also causes pollution of groundwater So contaminated soils must be cleared quickly.

However, today's industry is based on the mechanical industry. Almost all machines require direct oil, such as lubricating oil and fuel. Especially oil which is consumed by various vehicles, which is one of the most essential in modern life Is consumed in such a large amount that it can not be quantified, and a considerable amount of oil is leaked to the outside due to carelessness and inevitable reasons in the transportation, storage and use of the oil, and the soil is polluted.

Also, in addition to the above-mentioned oil, various organic or inorganic compounds and heavy metals contained in the tailings discharged from the mine pollute the soil, and various methods for restoring the contaminated soil have been researched and developed.

Methods for recovering contaminated soil include physical and chemical methods such as soil washing, incineration, solidification, stabilization and solvent extraction, and biological methods such as soil cultivation, composting, bioventing, It is relatively easy to sort out the above methods and the soil is washed to recover the contaminated soil quickly because of the short treatment time.

Soil washing is a technique that uses a proper detergent to weaken the surface tension of harmful organic contaminants attached to soil particles or to separate them from soil particles by changing heavy metals into liquid phase, There is an advantage to be applied irrespective of the type of bar and pollutant.

Soil cleansing technology was first developed in the United States in the late 1970s, but is now being developed and used more in Europe than in the United States. Today, it is one of the most widely used methods for the recovery of contaminated soils, It is recognized that it is suitable for the current situation where various organic and inorganic pollutants are discharged in a large amount, and is one of economical and relatively efficient purification methods.

The soil washing method can be divided into an in-situ method and an off-site treatment method (Ex-situ method). On-site treatment method does not exclude contaminated soil, This is a method to directly wash polluted soil by circulating washing water in polluted soil to install polluted soil, effluent treatment facility, pump and instrumentation facility, volatile matter treatment facility, etc. on polluted site. It has a disadvantage that treatment time is long and recovery of washing liquid is difficult , The above-mentioned on-the-spot treatment is mainly applied to soil washing.

The out-of-site treatment method is to determine the distribution of the pollutants in the soil and the physical / chemical characteristics of the soil, excavate the contaminated soil to the extent to be treated, and then remove the contaminated soil excavated with a suitable washing liquid As a method for washing, generally referred to as soil washing.

As a device for soil washing as the above-mentioned off-site treatment method, Korean Registered Utility Model No. 20-0317747 discloses a large-scale soil washing system in which soil washing is performed in multiple stages, A system for sorting soil discharged with wash water from washers in a screen and screw classifier. The washing and sorting efficiency is reduced because the soil is only cleaned by a log washer and the soil is sorted only by screws.

Korean Registered Utility Model No. 20-0317747

Accordingly, the object of the present invention is to provide a method of separating contaminated soil, which is capable of separating soil adhered to each other and separating solidified soil, To provide a wet drum crusher.

In order to achieve the above object, according to the present invention, there is provided a wet type drum crushing apparatus for crushing and sorting contaminated soil, wherein an inlet is formed at one side of the soil to be grounded and an outlet is formed at the other side, A transfer drum separated into a first space and a second space; And a plurality of openings formed at one side and the other side of the conveying drum to receive the soil discharged from the discharge port of the conveyance drum and having an outer surface formed of a mesh net having a predetermined gap, A selection drum for separating and discharging a small soil and discharging a soil having a particle diameter larger than that of the air through an opening of the other side; And driving means for applying a rotational force to the conveyance drum.

As one example, the apparatus may further include a plurality of guide rollers contacting the outer peripheral surface of the conveyance drum to guide the rotation of the conveyance drum while supporting the conveyance drum.

As one example, the conveying drum may include a spiral-shaped shattering blade formed along the longitudinal direction on the inner circumferential surface of the first space.

As one example, the transfer drum may further include a static plate disposed at a boundary between the discharge port and the sorting drum and having a communicating hole formed at a central portion thereof.

As one example, there is further provided water spraying means disposed on the inner side of the conveyance drum and the inner side and the outer side of the selection drum, wherein the spraying means is disposed inside the conveyance drum in the longitudinal direction thereof; A second spray nozzle disposed inside the selection drum; And a third sprinkling nozzle disposed outside the selection drum toward the mesh network.

As described above, the wet type drum crushing apparatus for crushing and sorting the contaminated soil according to the present invention is characterized in that prior to performing the particle size sorting process on the contaminated soil, It is possible to perform an accurate and efficient sorting process in the discriminating drum and to separate and discharge the soil by adhering soil or solidified soil or soil easily adhered to stone or the like.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side cross-sectional view showing a wet drum crusher for crushing and screening contaminated soil of the present invention.
2 is a front view of a wet drum crusher for crushing and screening contaminated soil of the present invention.
3 is a side sectional view showing a stagnation plate according to an embodiment of the present invention.
FIGS. 4A to 4D are diagrams for explaining an operating state of a wet type drum shredding apparatus for crushing and sorting contaminated soil according to the present invention. FIG.
Fig. 5 is a view showing an example in which water spraying means is further constituted in a wet drum crushing apparatus for crushing and sorting contaminated soil according to the present invention; Fig.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a wet type drum crushing apparatus for crushing and sorting contaminated soil according to the present invention, and FIG. 2 is a front view showing a wet type drum crushing apparatus for crushing and sorting contaminated soil according to the present invention.

As shown in FIGS. 1 and 2, the wet type drum shredding apparatus 200 for crushing and sorting polluted soil according to the present invention comprises a cylindrical conveyance drum 210 through which soil to be sorted flows, A sorting drum 240 connected to the other side of the feed drum 210 to selectively discharge the contaminated soil transported and conveyed from the feed drum 210 by particle diameters, And driving means 250 for driving the motor.

The conveying drum 210 is not shown in detail in the drawing, but may be installed to be rotatable on an upright stationary frame 270.

The transfer drum 210 has an inlet 211 formed at one side of the transfer drum 210 so that soil to be sorted can be introduced into the interior of the transfer drum 210 while an outlet 212 is formed at the other side to transfer the introduced soil toward the discharge port 212 And then discharged.

At this time, the inside of the transfer drum 210 can be divided into the first space 220 and the second space 230 by the virtual partition area A, The soil is transported and the crushing process is performed. In the second space 230, the soil transferred from the first space 220 is refined.

1, the conveying drum 210 includes a spiral crush blade 221 formed along the longitudinal direction on the inner circumferential surface of the first space 220, so that the solidified It is possible to transfer the soil toward the discharge port 212 by the spiral structure while crushing the soil adhering to the soil or the stone having a large particle diameter.

The sorting drum 240 is coupled to the other side of the conveying drum 210 and rotates together with the conveying drum 210 when the conveying drum 210 rotates. The selection drum 240 has openings 241 and 242 formed at one side and the other side thereof to allow the soil discharged from the discharge port 212 of the delivery drum 210 to flow through the one opening 241, And a mesh net 243 having a predetermined gap. The soil having a particle diameter smaller than that of the air is separated and discharged, and the soil having a particle diameter larger than that of the air can be discharged through the other opening 242.

Here, the particle size of the pores can be selectively determined according to the purification condition of the contaminated soil, and preferably 10 to 50 mm so that the soil passing through the pores can be separated and discharged.

In addition, a plurality of horizontal bars 244 are formed on the inner circumferential surface of the sorting drum 240 at predetermined intervals, so that the soil accommodated in the rotation driving of the selection drum 240 is seated on the horizontal bar 244, So that the separation process of the soil can be performed more efficiently.

The driving unit 250 may apply a rotational force to the conveying drum 210.

For example, the driving unit 250 may include a driving rail 251 mounted along the outer circumferential surface of the conveying drum 210 as shown in FIG. 2, A drive motor 252 installed in the frame 270 and a belt 253 connected between the rotation shaft of the drive motor 252 and the drive rail 251. The rotation of the drive motor 252, And is transmitted to the drum 210 so that the transfer drum 210 can rotate.

The wet type drum shredding apparatus 200 for crushing and sorting the contaminated soil according to the present invention includes a plurality of conveying drums 210 contacting the outer circumferential surface of the conveying drum 210 to guide the rotation of the conveying drum 210 while supporting the conveying drum 210, And further includes a guide roller 260 so as to stably support the conveyance drum 210 that is rotationally driven. The guide roller 260 may also be mounted on the fixed frame 270.

Although not shown in the drawing, a driving force may be applied to the guide roller 260 so that the conveying drum 210 is rotated by the guide roller 260.

FIG. 3 is a side cross-sectional view showing a stagnation plate according to an embodiment of the present invention, and FIGS. 4a to 4d are views for explaining an operation state of a wet type drum shredding apparatus for crushing and sorting contaminated soil according to the present invention.

Meanwhile, the wet type drum shredding apparatus 200 for crushing and sorting the contaminated soil according to an embodiment of the present invention can perform the soil refining process in the second space 230 of the conveyance drum 210 as described above have.

3, the transfer drum 210 further includes a stagnation plate 231 disposed at a boundary between the discharge port 212 and the sorting drum 240 and having a communication hole 232 formed at a central portion thereof can do.

The stagnant plate 231 forms a step between the second space 230 and the sorting drum 240. Therefore, during the transportation of the soil until the stones flow into the second space 230 are accumulated, So that it is prevented from being introduced into the discriminating drum 240 at a time and is stagnated for a predetermined period of time.

This is because the stone or the like having a large particle size in the second space 230 is stagnated in the space of the second space 230 due to the rotational driving of the conveying drum 210. Therefore, It is transmitted to the discriminating drum 240 through the communication hole 232 beyond the stagnation plate 231. [

As a result, the stagnant stone or the like stuck in the second space 230 strikes the soil introduced into the second space 230 when the conveying drum 210 is driven to rotate. In the first space 220, The soil that has not been separated can be hit to crush the aggregated soil and to separate the soil adhering to the stone (gravel).

Hereinafter, the operation of the wet type drum shredding apparatus 200 for crushing and sorting contaminated soil according to an embodiment of the present invention will be described with reference to FIGS. 4A to 4D.

First, as shown in FIG. 4A, the soil to be sorted flows into the feed drum 210 through the inlet 211.

At this time, the soil to be selected may be a soil having a relatively large particle size in the collected soil, which has been previously sorted through a screen (not shown) such as a primary grizzly feeder.

The sorting target soil introduced through the inlet 211 of the conveying drum 210 may include a stone having a large particle size or a solidified soil and the spiral shaped crushing blade 221 formed on the inner peripheral surface of the first space 220 And then transferred to the second space 230.

4B, the soil transferred from the first space 220 flows into the second space 230 by the action of the shattering blade 221. At this time, The stagnant plate 231 may be moved into the second space 230 so that the stagnant plate 231 can not be moved to the discriminating drum 240 at one time. 230).

4C, the stagnant stone strikes the soil contained in the second space 230 when the conveying drum 210 is driven to rotate. By this action, So that it is possible to easily perform the discharge of the soil by the particle size through the mesh net 243 in the subsequent process, i.e., the sorting process, through the subdivision process.

4D, the soil having been subjected to the subdivision process by the second space 230 may be introduced into the selection drum 240 through the second communication hole 232 of the stagnation plate 231.

Since the outer surface of the sorting drum 240 is composed of the mesh net 243, the soil introduced into the sorting drum 240 can be separated and discharged according to particle diameters during the rotation driving process of the sorting drum 240, The soil having a smaller particle diameter than the pores of the mesh net 243 having the relatively large diameter can be discharged to the lower portion through the pores of the mesh net 243 and the relatively large- And is gradually discharged to the other side of the drum 240 through the opening 242 formed at the other side.

5 is a view showing an example in which a spraying means 280 is further provided in a wet type drum crushing apparatus for crushing and sorting contaminated soil according to the present invention. The spraying means 280 comprises a conveying drum 210, Water is continuously sprayed on the drum 240, so that the soil to be sorted can be transported and the crushing and sorting operations on the contaminated soil can be performed smoothly.

The water spraying means 280 includes a first spray nozzle 281, a second spray nozzle 282 and a third spray nozzle 283.

As shown in the drawing, the first spray nozzle 281 is arranged in the shape of a pipe along the longitudinal direction from the inside of the conveyance drum 210 and is configured to spray high pressure water through a plurality of nozzles formed at regular intervals, It is possible to crush the aggregated soil among the stone and soil conveyed along the soil 210 and to separate the soil adhering to the stone or the like.

The second sprinkling nozzle 282 is disposed inside the selection drum 240 so that the soil having a smaller particle diameter than the pores of the soil and the stone mesh 243 introduced into the selection drum 240 is discharged to the mesh network 243) to pass smoothly.

The third spray nozzle 283 is a means for washing the mesh net 243 and is arranged to spray water toward the mesh net 243 from the outside of the sorting drum 243.

The mesh net 243 is configured to allow soil having a smaller size than the gap to pass therethrough. However, in the case of soil and gravel having a particle size corresponding to the void of the mesh net 243, the mesh net 243 may be trapped in the mesh net 243, The mesh network 243 is blocked and can not perform its function properly.

Accordingly, the third water spray nozzle 283 is constructed such that the high pressure water is sprayed from the outside of the mesh mesh 243, thereby restoring the mesh mesh 243 that has clogged off the gravel and soil sandwiched by the mesh mesh 243 It will be possible to do.

At this time, the third spray nozzle 283 may be configured to operate continuously or intermittently.

It is preferable that the water spraying means 280 is arranged on the upper side of the center of the conveyance drum 210 and the sorting drum 240. This is because it is preferable that the water spraying means 280 is disposed above the conveyance drum 210 and the sorting drum 240, Gravel (stone) and the like are passed between the center of each of the drums 210 and 240 by the gravity due to gravity, so that interference between the drums 210 and 240 can be prevented.

The wet drum shredding apparatus 200 for crushing and sorting the contaminated soil according to the present invention may be constructed such that before the particle diameter sorting process is performed on the contaminated soil, It is possible to perform an accurate and efficient sorting process in the sorting drum 240 by subdividing the soil or easily separating soil adhering to the stone or the like.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

200: wet drum crusher 210: conveying drum
220: first space 230: second space
221: crushing blade 222: partition plate
231: stagnation plate 240: selection drum
243: mesh network 250: driving means
260: guide roller 280: injection nozzle

Claims (5)

A transfer drum in which an inlet is formed at one side and a target soil is introduced into the inside and an outlet is formed at the other side, the inside being separated into a first space and a second space;
And a plurality of openings formed at one side and the other side of the conveying drum to receive the soil discharged from the discharge port of the conveyance drum and having an outer surface formed of a mesh net having a predetermined gap, A selection drum for separating and discharging a small soil and discharging a soil having a particle diameter larger than that of the air through an opening of the other side; And
And a driving means for applying a rotational force to the conveying drum. The apparatus for crushing and sorting contaminated soil according to claim 1,
The method according to claim 1,
Further comprising a plurality of guide rollers contacting the outer circumferential surface of the conveyance drum to guide the rotation of the conveyance drum while supporting the conveyance drum, and crushing and sorting the contaminated soil.
The method according to claim 1,
The conveying drum includes:
And a spiral crushing blade formed along the longitudinal direction on the inner circumferential surface of the first space. The apparatus for crushing and sorting contaminated soil according to claim 1,
The method according to claim 1,
The conveying drum includes:
Further comprising a stagnant plate disposed at a boundary between the discharge port and the discriminating drum and having a communicating hole formed at a central portion thereof, for crushing and sorting the contaminated soil.
The method according to claim 1,
Water spraying means disposed inside the transfer drum and inside and outside the discriminating drum,
The spraying means
A first spray nozzle disposed inside the conveyance drum along the longitudinal direction thereof;
A second spray nozzle disposed inside the selection drum; And
A third spray nozzle disposed outside the selection drum toward the mesh net;
And a crusher for crushing and sorting the contaminated soil.

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