KR20190123845A - Dredged soil processing device - Google Patents

Abstract

The present invention relates to a dredged soil processing apparatus to effectively remove an organic material of polluted dredged soil for each particle size of the dredged soil. According to one embodiment of the present invention, the dredged soil processing apparatus comprises: an input hopper transferring inputted dredged soil to a rear side while screening the same; a wet drum crusher connected to the rear side of the input hopper, washing the dredged soil by processing water and removing foreign matters to separate first dredged soil; a washing apparatus stirring and washing the first dredged soil; a cyclone unit connected to the washing apparatus through a sand tank and separating the washed first dredged soil in accordance with particle sizes to discharge third and fourth dredged soil; a dehydrating screen spraying processing water to wash and dehydrate the third and fourth dredged soil when receiving the third and fourth dredged soil; and a first conveyor disposed on the rear side of the dehydrating screen to discharge the third and fourth dredged soil to the outside through a belt.

Description

Dredged Soil Processing Unit {DREDGED SOIL PROCESSING DEVICE}

The disclosure disclosed herein relates to a dredged soil treating apparatus and to a dredged soil treating apparatus having improved washing efficiency.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application and the description in this identification is not admitted to be prior art.

Soil is contaminated through harmful substances such as oil and heavy metals by various industrial developments, and compositions or devices for restoring and reusing contaminated soil have been developed and used.

The contaminated soil can be classified into coarse earth, neutral earth and fine earth according to the size of the particle size, and the existing purification device has a low cleaning efficiency for removing organic matter and odor of contaminated dredged soil.

In this regard, Korean Utility Model Publication No. 20-0422043 discloses a sludge removal and wastewater treatment device, and Korean Patent Publication No. 10-1094321 discloses a method for improving the soil of dredged soil using a continuous filtration method. .

However, existing inventions do not disclose a technique for effectively removing the organic matter and odor of the dredged soil.

An object of the present invention is to provide a dredged soil treating apparatus which effectively removes contaminated dredged soil organic matter by the size of dredged soil.

In addition, the present invention is not limited to the above-described technical problems, and it is apparent that other technical problems may be derived from the following description.

According to an embodiment of the present disclosure, a dredged soil treating apparatus is connected to a doping hopper for screening and transporting dredged soil into the rear, connected to the rear of the doping hopper, and washing the dredged soil through process water and removing impurities. A wet drum crusher for separating dredged soil, a washing apparatus formed to stir and wash the first dredged soil, the first dredged soil connected and washed through the washing apparatus and the sand tank and separated according to the size of the third and third 4 a cyclone unit for discharging the dredged soil, the dehydration screen is formed to wash and dewater the third and fourth dredged soil by spraying the process water when the third and fourth dredged soil flows in the rear of the dewatering screen And a first conveyor configured to discharge the third and fourth dredged soil to the outside through the belt.

In addition, the wet drum crusher is discharged to the washing device through the hole of the first dredged soil having a relatively small particle diameter of the dredged soil through the rotation of the perforated network, the remaining impurities are discharged to the outside through the second conveyor in the rear lower portion can do.

In addition, the washing apparatus may be connected to the lower rear side of the wet drum crusher, and the air and the process water may be added to the first dredged soil and stirred to wash the first dredged soil.

The cyclone unit may further include a first cyclone disposed at a lower portion thereof, and a second cyclone connected at one side thereof through a passage connected to an upper portion of the first cyclone, and the first dredged soil may include the first and second cyclones. Through the second dredged soil having a relatively small particle diameter and the third and fourth dredged soil having a relatively high particle diameter can be separated.

In addition, by collecting the second dredged soil discharged to the upper portion of the second cyclone, the contaminants of the second dredged soil is sewage treatment through an external buffer tank and sedimentation tank, the remaining second dredged soil may be moved to the cyclone portion.

In addition, the dewatering screen is disposed below the cyclone portion in the form of a conveyor belt, and the third and fourth dredged soil is moved toward the rear after spraying the process water on the third and fourth dredged soil falling to the upper front. Can be vibrated.

The hopper may transfer the dredged soil to the rear, spray the process water on the dredged soil, wash the dredged soil, and discharge the dredged soil through a rotary valve.

According to one embodiment disclosed in the present specification, the dredged soil treating apparatus is classified and washed by the particle size of the dredged soil to effectively remove organic matter from the dredged soil, there is an advantage that the odor is removed.

In addition, the dredged soil treatment device is used to transfer the dredged soil using a belt conveyor in place of the conventional screw or lynch conveyor has the advantage that the phenomenon of clogging is blocked during the transfer.

In addition, the dredged soil treatment apparatus has a merit that the efficiency of dredged soil transfer is increased because the amount of dredged soil moving from the input hopper to the wet drum crusher is uniformly maintained using a rotary valve.

In addition, since the dredged soil treatment apparatus is washed and dehydrated to be suitable for each of the dredged soil discharged by the size of the different particle size in the cyclone portion, there is an advantage that the treatment of dredged soil can be recycled in a uniform state.

In addition, since the effects of the present invention described above are naturally manifested by the configuration of the described contents irrespective of whether or not the inventor recognizes them, the above-described effects are only some effects according to the described contents, and all effects that the inventors grasp or actually exist. It should not be accepted that it is listed.

In addition, the effects of the present invention should be further grasped by the entire description of the specification, even if not described in explicit sentences even those having ordinary skill in the art to which the description belongs belong Any effect that can be recognized as should be seen as an effect described herein.

1 is a perspective view of a dredged soil treating apparatus according to one embodiment of the contents disclosed herein.
2 is a plan view of the dredged soil processing apparatus of FIG.
3 is a side view of the dredged soil treating apparatus of FIG.
4 and 5 are schematic views of the dredged soil treating apparatus of FIG.
Figure 6 is a side view and a rear view showing an input hopper of the dredged soil processing apparatus of FIG.
7 is a side view showing a separate washing device of the dredged soil treating apparatus of FIG.
8 is a side view and a rear view showing a cyclone portion of the dredged soil treating apparatus of FIG.
9 is a cross-sectional view showing a state of use of the cyclone portion of FIG. 8;

Hereinafter, with reference to the accompanying drawings looks at the configuration, operation and effect of the dredged soil treatment apparatus according to a preferred embodiment. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, the size of each component does not reflect the actual size, and the same reference numerals throughout the specification refer to the same component. Reference numerals for the same components will be omitted in the individual drawings.

1 illustrates a perspective view of a dredged soil treating apparatus according to an embodiment of the presently disclosed subject matter. FIG. 2 shows a plan view of the dredged soil treating apparatus of FIG. 1. 3 shows a side view of the dredged soil treating apparatus of FIG.

As shown in Figures 1 to 3, the dredged soil processing apparatus 100, the input hopper 200, the wet drum crusher 300, the cleaning device 400, sand tank 450, cyclone 500, balance The tank 550, the buffer tank 560, the dewatering screen 600, the first conveyor 700, the second conveyor 720, the process water tank 800, and the deodorizer 920 are included.

The dredged soil treatment apparatus 100 effectively separates organic matter by spraying process water in the process of separating and transporting dredged soil, classifies the dredged soil by the size of the particle through the cyclone unit 500 and effectively removes the organic substance.

The input hopper 200 is installed in front of the dredged soil processing apparatus 100 is supplied dredged soil supplied from the outside, the injected dredged soil is discharged onto the screen of the perforated plate form through a rotary valve.

The screen moves a portion having a particle size of less than a predetermined drop of dredged soil toward the bottom, and a portion of the dredged soil having a particle size of a predetermined size or more is disposed on the upper portion of the screen, the dredged soil filtered to the bottom of the screen is a rotary It is transferred to the wet drum crusher 300 through the valve.

Nozzles are formed in the upper portion of the input hopper 200 so that the process water is sprayed toward the lower portion, and the process water is sprayed on the upper portion of the screen at high pressure to disperse the dredged soil to prevent the state of being accumulated on the screen.

The wet drum crusher 300 is connected to the hopper 200 at the rear of the hopper 200, the dredged soil introduced into the wet drum crusher 300 is dispersed in the wet drum crusher 300 and rear Go to.

The wet drum crusher 300 is formed in the form of a drum washer, and the dredged soil is transported from the inner side through rotation to remove the fine powder generated by dispersion and collision with each other through the process water.

The rear part of the wet drum crusher 300 is formed in a cylindrical shape in which holes having a diameter of 8 mm are disposed, and the dredged soil is separated into a first dredged soil having a diameter of 8 mm or more and a first dredged soil of 8 mm or less through the holes.

The dredged soil is separated into the contaminant and the first dredged soil while being washed by the process water flowing through the holes, and the first dredged soil is discharged downward through the holes and moved to the washing apparatus 400, and the contaminated material When all of the first dredged soil is discharged, the rear discharge port is opened and moved to the second conveyor 720 disposed at the rear to be discharged to the outside.

The washing apparatus 400 is disposed at one side of the second conveyor 720 at the rear of the wet drum crusher 300, and when the first dredged soil is input, the first dredged soil is stirred and washed through process water and air.

The cyclone unit 500 includes a first cyclone 520 and a second cyclone 540.

The cyclone unit 500 is connected to the washing apparatus 400 through the sand tank 450 in which the first dredged soil is stored, and receives the first dredged soil to separate the first dredged soil by the size of the particle size.

Specifically, the first cyclone 520 is connected to the sand tank 450 through a first inlet which penetrates one side of the upper end and is connected to an internal space, and the first dredged soil is first cyclone 520 through the first inlet. Flows into).

A second dredged soil having a relatively small particle size among the first dredged soils in the first cyclone 520 is formed on the first cyclone 520 and connects a first passage connected to one side of the second cyclone 540. Moving through the second cyclone 540, the third dredged soil having a relatively large particle size is moved to the lower portion is transferred to the dewatering screen (600).

Some of the second dredged soil transported to the second cyclone 540 having a relatively large particle size moves downward as the fourth dredged soil and is transferred to the dewatering screen 600, and the remaining second dredged soil having a relatively small particle diameter is moved upward. Move toward the balance tank 550.

Balance tank 550 is formed on the upper portion of the cyclone portion 500, the particles having a relatively large particle size of the second dredged soil flows into the washing apparatus 400, the second dredged soil is buffer tank 560 Is discharged to outside.

The second dredged soil discharged to the buffer tank 560 is made of particles having a relatively small particle diameter of less than 0.020 mm in particle size, and is discharged from the treatment plant 10 after moving to a sedimentation tank through a turbid water pump 570 to be described later.

The dewatering screen 600 is formed under the cyclone part 500, and sprays process water onto the third and fourth dredged soil discharged downward from the cyclone part 500 to wash the third and fourth dredged soil. , While dehydrating the third and fourth dredged soil to the rear.

The dewatering screen 600 is made to extend toward the rear to improve the dewatering effect of the third and fourth dredged soil transported on the dewatering screen 600, by spraying the process water directly below the cyclone portion 500 The dehydration effect is maximized in the process of transferring the third and fourth dredged soil.

One end of the first conveyor 700 is connected to the rear of the dewatering screen 600, the other end is formed to be inclined toward the rear upper portion, and the dewatered from the dewatering screen 600 through the conveyer in the form of a belt Discharge the third and fourth dredged soil to the outside.

The first conveyor 700 is formed in the form of a belt, and compared to the conventional Lynch conveyor, it is possible to stably prevent the jamming of contaminants and to be driven stably, and to extend rearward in parallel with the second conveyor 720. Easy to install

Process water tank 800 is formed in the lower portion of the input hopper 200, the process water to the input hopper 200, the wet drum crusher 300, the cleaning device 400 and the dehydration screen 600 through the pump Supplied.

4 and 5 show schematic diagrams of the dredged soil treating apparatus of FIG. 1.

As shown in Figures 4 and 5, the dredged soil is transported in the input hopper 200 and washed through the process water, moved to the wet drum crusher 300, the dredged soil having a particle diameter of more than 8mm is organic And discharged to the waste treatment plant 30 through the second conveyor 720 together with the process water.

The first dredged soil having a particle diameter of 8 mm or less among the dredged soil moves to the washing apparatus 400, is stirred and washed with air and process water introduced through the ring blower 900, and organic matter is desorbed in this process.

The washed first dredged soil moves to the sand tank 450 and then flows into the first cyclone 520, and the second dredged soil moves to the second cyclone 540. Is discharged to go to the dehydration screen (600).

A portion of the second dredged soil transported to the second cyclone 540 having a relatively large particle size is discharged downward as a fourth dredged soil to move to the dewatering screen 600, and the second dredged soil is a balance as a part of the dredged soil. After moving to the buffer tank 560 through the 550 is discharged to the treatment plant 10 with the water by the turbid water pump 570.

The third and fourth dredged soils discharged from the first and second cyclones 520 and 540, respectively, are screened by being washed and dewatered in the dewatering screen 600, and the first conveyor 700 connected to the rear is disposed. It is discharged to the recycling treatment plant 20 through.

Therefore, the dredged soil treating apparatus 100 discharges dredged soil having a particle size of 8 mm or more and is not recycled through the treatment plant 10 and the waste treatment plant 30 through the washing, separating, and dehydrating process to the outside, and is recyclable. The third and fourth dredged soil is transferred to a recycling treatment plant 20.

Deodorizer 920 is formed in the outside adjacent to the input hopper 200, the odor generated in the indoor odor and cleaning device 400 is disposed in the dredged soil processing apparatus 100 except the deodorizer 920 Clean up and discharge to the outside.

6 is a side view and a rear view showing an input hopper of the dredged soil processing apparatus of FIG. FIG. 7 is a side view illustrating a separate washing apparatus of the dredged soil treating apparatus of FIG. 1. 8 is a side view and a rear view showing a cyclone portion of the dredged soil treating apparatus of FIG. 9 is a sectional view showing a state of use of the cyclone portion of FIG.

As shown in FIGS. 6 to 9, the input hopper 200 includes a water spray nozzle 220 and a rotary valve 240.

The dredged soil introduced into the top of the input hopper 200 is washed by the process water sprayed through the spraying nozzle 220 and moved to the rear, the rotary valve 240 formed on the inner rear lower end of the input hopper 200 Go through the wet drum crusher (300).

The rotary valve 240 is discharged to the wet drum crusher 300 while periodically separating a large amount of dredged soil injected into the input hopper 200 by a predetermined amount to prevent the malfunction and performance degradation of the wet drum crusher 300.

As shown in FIG. 7, the washing apparatus 400 includes an agitator 420 and is connected to the process water pump 820 and the ring blower 900.

The washing apparatus 400 is formed in the shape of a washing tank in which a space for washing is formed therein, and removes organic substances formed in the first dredged soil by stirring and washing the first dredged soil introduced into the inside.

Specifically, the stirrer 420 is formed in the center of the washing apparatus 400 to rotate the propellers in the inner space and to agitate the first dredged soil, at the same time through the ring blower 900 air and process water pump 820 Injecting the process water injected into the interior space to effectively remove the organic material of the first dredged soil.

Compressed air produced in the ring blower 900 is injected into the high pressure air in the washing apparatus 400 to evaporate the odor-causing organic matter of the first dredged soil in the washing apparatus 400, Sedimentation is evenly distributed, which is an advantage in transport.

In addition, the process water through the process water pump 820 is sprayed toward the first dredged soil at a strong pressure inside the washing apparatus 400 to effectively remove the organic impurities remaining in the first dredged soil and prevent the corruption of the first dredged soil It has the advantage of being.

As shown in FIGS. 8 and 9, the cyclone unit 500 further includes a cradle 510.

The cradle 510 is formed in a frame structure so as to mount the upper end of each of the first cyclone 520 and the second cyclone 540, the position where the upper end of the first cyclone 520 is mounted is the second cyclone 540 It is formed to be relatively lower than the mounting position.

The first cyclone 520 is mounted on the cradle 510 at a relatively low position, and the first cyclone 520 is transferred from the washing apparatus 400 through the ring blower 900 through the first inlet 522 formed at one side of the upper side. 1 Dredged soil is introduced inside.

Among the first dredged soils introduced into the first cyclone 520, the second dredged soil having a relatively small particle diameter of less than 0.075 mm is moved upwards through an inlet formed on one side of the second cyclone 540. It is introduced into the interior of two cyclones (540).

Among the first dredged soils introduced into the first cyclone 520, third dredged soils having a relatively larger particle diameter of 0.075 mm or more are moved to the lower portion of the first cyclone 520 and discharged to the dehydration screen 600.

A portion of the second dredged soil having a particle diameter of less than 0.075 mm that flows into the second cyclone 520 having a relatively low particle size of less than 0.040 mm is moved upward and moved to the balance tank 550, and has a relatively particle diameter of 0.040 mm or more. The high fourth dredged soil moves to the lower portion of the second cyclone 520 and is discharged to the dewatering screen 600.

A portion of the second dredged soil having a particle size of less than 0.040 mm to 0.020 mm or more of the second dredged soil having a particle size of less than 0.040 mm introduced into the balance tank 550 is again transferred through the sand tank 450 to the first cyclone 520. To be separated.

The second dredged soil, organic matter or contaminant having a particle diameter of less than 0.020 mm remaining in the balance tank 550 is transferred to the buffer tank 560 and then moved to the settling tank through the turbid water pump 570.

Since the fourth dredged soil is discharged from the second cyclone 540 toward the dewatering screen 600 relatively slower than the third dredged soil, a separate controllable valve is installed below the second cyclone 540 to provide a relatively particle size. After the washing, dehydration and screening processes of the third dredged soil having a small size are completed, the fourth dredged soil may be discharged to the dewatering screen 600.

When the discharge time of each of the third and fourth dredged soil is different from each other and transferred to the dewatering screen 600, the third dredged soil having a relatively large particle size has a relatively high vibration and a long transfer time. By controlling the dewatering screen 600, it is possible to effectively wash, dewater and screen the third dredged soil.

In addition, when the fourth dredged soil having a relatively small particle size is discharged to the dewatered screen 600, the dewatered screen 600 has a relatively low vibration and a short time transfer time than the setting applied to the third dredged soil. By controlling the effective washing, dehydration and screening of the fourth dredged soil is possible.

Meanwhile, the particle sizes of the third and fourth dredged soils discharged downwardly from the first and second cyclones 520 and 540 and the second dredged soil discharged upwardly may be a ring blower 900 or The lower portion formed under each of the first and second cyclones 520 and 540 may be changed by changing the inflow rate of the first dredged soil through a separate blower connected to the first cyclone 520. It can be changed by changing the particle diameter of the discharge portion.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical idea of the present invention. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

100: drying apparatus 200: input hopper
300: wet drum crusher 400: cleaning device
500: cyclone part 600: dewatering screen
700: first conveyor 720: second conveyor
800: process water tank 820: process water pump

Claims (7)

An input hopper for screening the dredged soil to be fed and transported backward;
A wet drum crusher connected to the rear side of the hopper and separating the first dredged soil by washing the dredged soil through process water and removing impurities;
A washing apparatus formed to wash the first dredged soil;
A cyclone unit connected to the washing apparatus and the sand tank and separating the first dredged soil according to the size of the particle to discharge the third and fourth dredged soil;
A dewatering screen formed to wash and dehydrate the third and fourth dredged soils by spraying process water when the third and fourth dredged soils are introduced; And
And a first conveyor disposed behind the dewatering screen and configured to discharge the third and fourth dredged soil to the outside through a belt.
The method of claim 1, wherein the wet drum crusher,
The first dredged soil having a relatively low particle diameter among the dredged soil is discharged to the washing apparatus through a hole through the rotation of the perforated network, and the remaining dredged soil is discharged to the outside through the second conveyor at the rear lower portion. Device.
According to claim 1, The washing device,
A dredged soil treating apparatus is connected to a lower rear side of the wet drum crusher and washes the first dredged soil by adding and stirring air and process water to the first dredged soil.
The method of claim 1, wherein the cyclone portion,
A first cyclone disposed relatively lower; And
And a second cyclone connected at one side thereof through a passage connected to an upper portion of the first cyclone.
The first dredged soil is separated into second dredged soil having a relatively small particle diameter and the third and fourth dredged soil having a relatively high particle diameter through the first and second cyclones.
The method of claim 4, wherein
Collecting the second dredged soil discharged to the upper portion of the second cyclone, the contaminants of the second dredged soil is sewage treatment through an external buffer tank and sedimentation tank, and the remaining second dredged soil is moved to the cyclone portion. Dredge soil treatment device.
According to claim 1, The dewatering screen,
It is disposed below the cyclone portion in the form of a conveyor belt, spraying the process water on the third and fourth dredged soil falling to the front upper portion and moving the third and fourth dredged soil toward the rear and applying vibration. Dredged soil treating apparatus.
The method of claim 1, wherein the input hopper,
Dredged soil transport apparatus, characterized in that for transporting the dredged soil to the rear, and spraying the process water on the dredged soil to wash the dredged soil and discharge the dredged soil through a rotary valve.

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