KR101278244B1 - Apparatus for purifying polluted soil - Google Patents

Abstract

PURPOSE: A purifier of polluted soil is provided to flexibly and effectively treat polluted soil depending on the types and concentration of contaminant and to easily control the response factor. CONSTITUTION: A purifier of polluted soil comprises: device body (100); several crushing blades (200) extended to the lower part of the device body; and a vibrating motor (300) which vibrates crushing blades; and a superheated steam spraying device installed in the crush blades. The lower-side of the device body is formed in an opened bucket to collect the toxic gas generated from the ground at the field during the process of polluted soil purification. The toxic gas generated from contaminant is collected inside the device body through the opened lower-side of the device body by combining the purifier to the equipment with travelling device, and soil is cut and crushed with crushing blades while the equipment travels on the polluted soil. The toxic gas generated from contaminant is collected inside the device body through the open lower side of the device body.

Description

Apparatus for purifying polluted soil

The present invention relates to an apparatus for purifying contaminated soil, and more specifically, by vibrating and crushing contaminated soil contaminated with oil and injecting superheated steam into the soil pores, the contaminant type and concentration can be flexibly treated. The present invention relates to a contaminated soil purification device that can be effectively treated according to oil type and concentration, easy to control reaction factors, enables rapid treatment and high efficiency treatment, and guarantees purification quality.

As a method of purifying contaminated soil by removing contaminants from contaminated soil contaminated with contaminants such as oil, conventionally inoculate microorganisms into contaminated soil while crushing contaminated soil and bringing it into a purification process and crushing contaminated soil. Polluted soil cultivation methods have been used which repeatedly perform the flipping and drug spraying processes.

Conventional soil soil cultivation method can reduce the low concentration of oil pollutants in an environmentally friendly way, it is relatively inexpensive to clean up compared to other processes, easy to control biological control factors, environmental factors, types and concentrations of pollutants Although there are many characteristics that are affected, there is a problem that the decomposition rate of pollutants is slow, the processing efficiency of high viscosity soil or heavy metal is low, and the purification treatment for low volatility hydrocarbons is impossible.

The average purification period of the conventional soil purification method is that if the pollutant is diesel (TPH) and the contaminated soil with a pollution concentration of 5,000 mg / kg is purified to a pollutant concentration of 500 mg / kg after purification, the average purification period is 50 days or more. do. The purification period is a period excluding civil works such as a purification plant.

The prior art of the conventional contaminated soil purification device is a contaminated soil cultivation device equipped with crushing addition of Republic of Korea Patent No. 0928085 by the present applicant, and a contaminated soil cultivation device equipped with a crushing blade and mixed blade of Republic of Korea Patent No. 0928086 and registered in Korea There is a contaminated soil tillage device having a transfer blade of Patent No. 0940214.

Contaminated soil cultivation apparatus according to the prior art is a device for performing the conventional contaminated soil cultivation method as described above to remove contaminants from the contaminated soil by bioreaction through the crushing operation repeatedly after the inoculation of microorganisms, low concentration While environmentally friendly treatment of oil pollutants is possible, the cost of purification is relatively low, and biological control factors are easily controlled.However, it is influenced by environmental factors, pollutant types and concentrations, and the rate of decomposition of pollutants is increased. Slow, highly viscous soils, low processing efficiency for heavy metals, the average purification period is more than 50 days / batch has a problem that takes a long time to clean the contaminated soil.

Therefore, an object of the present invention can be flexibly treated for the type and concentration of contaminants by vibrating the soil contaminated with oil and injecting superheated steam in the soil void, and can be effectively treated according to the type and concentration of contaminants. It is intended to provide a contaminated soil purification apparatus that can easily adjust the reaction factors, enable rapid treatment and high efficiency treatment, and ensure the purification quality.

The present invention, in order to achieve the above object, the apparatus main body; A plurality of shredding blades extending below the apparatus body; A vibration motor mounted inside the apparatus body to vibrate the crushing blade; Superheated steam injection means is installed on the crushing blade to spray superheated steam in the contaminated soil; And it is installed inside the apparatus main body provides a pollution soil purification apparatus comprising a harmful gas recovery means for sucking the harmful gas collected in the interior of the apparatus body in the process of purifying contaminated soil and sends it to the outside.

The apparatus main body is preferably formed in an open bucket shape so that the harmful gas generated during the contaminated soil purification process can be collected.

One side of the upper surface of the apparatus body is provided with a coupler for mounting on equipment such as backhoe.

The front end of the apparatus main body is provided with a flattening plate for flattening the surface of the contaminated soil.

The flattening plate is installed elastically by a spring as well as the angle adjustable by the bolt and nut.

The shredding blade is configured to include a shredding blade body having a serrated blade portion at the rear side, and an ear insertion portion coupled to the front side of the shredding blade body.

The vibration motor is mounted to a motor mount fixed inside the apparatus body through a motor base, and a vibration pad or a high strength spring is installed between the motor base and the motor mount.

The superheated steam injection means includes a superheated steam supply pipe penetrating the upper surface of the apparatus main body, a superheated steam distribution pipe connected to the superheated steam supply pipe, a superheated steam spraying pipe provided at the tip of the crushing blade, and the superheated steam portion It comprises a connection pipe connecting the pipe and the superheated steam injection pipe, and a superheated steam supply source for generating the superheated steam and supplying the superheated steam supply pipe.

The harmful gas recovery means includes a suction pipe penetrating the upper surface of the apparatus body, a suction nozzle having a suction port open horizontally extending from the lower end of the suction pipe and open on the lower surface, and a harmful gas recovery device connected to the suction pipe. do.

The present invention can expand the air contact by crushing the contaminated soil by the crushing blade vibrated by the vibration motor and at the same time to expand the air gap in the contaminated soil, the superheated steam injected into the contaminated soil by the superheated steam supply means It is sprayed into the pores and comes into contact with the contaminated soil so that it can be flexibly treated for the type and concentration of contaminants, can be effectively treated according to the type and concentration of contaminants, easy to control reaction factors, rapid treatment and high efficiency. It is possible to process and ensure the purification quality. First of all, contaminants can be collected through an open bucket-type device body to increase treatment efficiency.

1 is a side view of the contaminated soil purification apparatus according to the present invention,
2 is a front view of the contaminated soil purification apparatus according to the present invention,
Figure 3 is a side view showing the mounting structure of the vibration motor,
4 is a side view and a front view of the crushing blade,
5 is a cross-sectional view taken along the line AA of FIG.
6 is a front view, a side view and a cross-sectional view taken along line BB of the superheated steam distribution pipe,
7 is a front view of the connector,
8 is a front view and a side view of the superheated steam injection pipe,
9 is a front view, a side view, and a cross-sectional view taken along line CC of the intake pipe;
Figure 10 is a side view showing a state attached to the backwash rain contaminated soil purification apparatus according to the present invention,
11 is a diagram representing an example of a soil treatment method to which the present invention is applied.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the contaminated soil purification apparatus according to the present invention will be described in detail.

1 to 8 show a preferred embodiment of the contaminated soil purification apparatus according to the present invention.

Polluted soil purifying apparatus according to the present embodiment device apparatus 100; A plurality of crushing blades 200 (four in the drawing) installed to extend below the apparatus main body 100; A vibration motor 300 mounted inside the apparatus body 100 to vibrate the crushing blade 200; Superheated steam injection means (400) installed on the crushing blade (200) to inject superheated steam in contaminated soil; And harmful gas recovery means 500 installed in the apparatus main body 100 to suck the harmful gas collected in the apparatus main body 100 in the process of purifying the contaminated soil and send it to the outside.

The apparatus body 100 is preferably formed in an open bucket shape to the bottom to collect harmful gases generated during the contaminated soil purification process.

One side of the upper surface of the apparatus main body 100 is provided with a coupler 110 for mounting on the equipment (1), such as backhoe.

The equipment 1 may use a conventional backhoe having a crawler 2, but it is preferable to use dedicated equipment specialized in the present invention.

The coupler 110 is connected to the hitch (H) connected to the tip of the arm (A) and the link (L) of the equipment (1) by a pin (P). In addition, when the quick coupler (not shown) is provided in the equipment 1, the coupler 110 may be connected to the quick coupler.

The front end of the device body 100 is provided with a flattening plate 120 for flattening the surface of the contaminated soil. The flattening plate 120 may be installed elastically by the spring 123 while being installed to be angle-adjustable by the bolt 121 and the nut 122.

1, 2, 4 and 5, the shredding blade 200 has a shredded blade main body 210 having a serrated blade portion 211 on the rear side, and the shredded blade main body 210 It includes an ear insertion unit 220 is coupled to the front side of the.

The upper end of the crushing blade 200 is provided with a coupling portion 212 for coupling to the device body 100.

The vibration motor 300 is mounted to the motor mount 320 fixed inside the device body 100 through the motor base 310. The motor base 310 and the motor mount 320 may be directly coupled, but the vibration generated from the vibration motor 300 is not directly transmitted to the apparatus main body 100, and the equipment from the apparatus main body 100 In order to prevent the arm A and the link L of (1) from being transmitted, it is preferable to install a dustproof pad 330 or a high-strength spring between the motor base 310 and the motor mount 320.

The motor base 310 is provided with a crushing blade mounting portion 311 to which the coupling portion 212 of the crushing blade 200 is coupled.

The superheated steam injection means 400 is a superheated steam supply pipe 410 penetrating the upper surface of the apparatus body 100, the superheated steam distribution pipe 420 connected to the superheated steam supply pipe 410, and the shredding blade It includes a superheated steam injection pipe 430 provided at the front end of the 200, and a connecting pipe 440 connecting the superheated steam distribution pipe 420 and the superheated steam injection pipe 430 (Figs. 1 and 5). To FIG. 8).

The superheated steam distribution pipe 420 is provided with a plurality of distribution ports 421 (four in the drawing), and the connection pipe 440 is connected to the distribution holes 421.

The front end of the connecting pipe 440 is provided with a pipe fitting 444, such as elbows, tees for connecting the superheated steam injection pipe 430.

The superheated steam supply pipe 410 is insulated to maintain a high temperature after connecting to the superheated steam supply source 450 mounted on the equipment (1) by a hose or pipe. The superheated steam source 450 includes a boiler for generating steam and a superheated steam generator for heating the steam generated by the boiler to generate superheated steam (see FIG. 10).

The noxious gas recovery means 500 has a suction nozzle 510 penetrating the upper surface of the apparatus main body 100 and a suction nozzle 521 extending horizontally from the lower end of the suction tube 510 to be opened on the lower surface. 520 (see FIGS. 1 and 9).

The suction pipe 510 is connected to the harmful gas recovery device 530 mounted in the equipment (1) by a hose or a pipe.

The equipment 1 may be further equipped with a superheated steam source 450 and the noxious gas recovery device 530 using a conventional backhoe or may be configured as a dedicated equipment. In addition, the equipment 1 may be configured to be operated and operated by remote control since the driver may be damaged by harmful vapor or gas generated in the process of purifying the contaminated soil when the driver drives.

Hereinafter, the contaminated soil purification process by the contaminated soil purification apparatus according to the present invention will be described.

Attached to the equipment (1) is a soil contaminant purifying apparatus according to the present invention. In attaching the polluted soil purifying apparatus according to the present invention to the equipment (1), the hitch connected to the tip of the arm (A) and the link (L) of the equipment body (100) Connect to H) with pin (P). At this time, if a quick coupler (not shown) is provided in the equipment (1) can be attached using this.

The equipment 1 attached to the contaminated soil purifying apparatus according to the present invention is moved to a soil purification treatment plant, and the soil is cut and crushed by the crushing blade 200 while traveling on the contaminated soil.

At this time, the vibration motor 300 is operated to crush the soil while cutting the soil while the crushing blade 200 vibrates.

When the vibration motor 300 operates, vibration is generated, and the vibration is transmitted to the crushing blade 200 through the motor base 310 so that the crushing blade 200 vibrates to cut and crush the contaminated soil. It is in a state.

As such, when the crushing blade 200 vibrates to cut and crush the contaminated soil, it is advantageous to secure voids in the contaminated soil, and the superheated steam injected thereafter sufficiently penetrates into the contaminated soil, thereby treating contaminants by the superheated steam. To increase.

At this time, the vibration motor 300 is mounted on the motor base 310 coupled to the motor mount 320 through the anti-vibration pad 330, so that the vibration generated from the vibration motor 300 is the device body 100 or the equipment (1). Will not be delivered directly to).

In addition, since the crushing blade 200 includes a crushing blade main body 210 having a serrated blade portion 211 and an ear insertion portion 220 coupled to the front side of the crushing blade main body 210, cutting of contaminated soil And crushing operations can be performed more efficiently.

When the superheated steam supply source 450 provided in the equipment 1, that is, the superheated steam generator is operated to generate superheated steam, the superheated steam is supplied to the superheated steam supply pipe 410 and supplied to the superheated steam supply pipe 410. The superheated steam is distributed by the superheated steam distribution pipe 420 and transferred to the superheated steam injection pipe 430 through the connection pipe 440 and sprayed in the contaminated soil.

The superheated steam injected in the contaminated soil is superheated above the saturation temperature of the dry saturated vapor, and maintains the superheated state even when the temperature is lowered by contacting the outside air, minimizing the generation of condensed water and easily controlling the moisture content. It also has a high effect of desorption and separation of pollutants, making it possible to treat pollutants in contaminated soil more effectively.

In addition, as described above, since the crushing blade 200 vibrates and inverts the contaminated soil while vibrating by the vibration motor 300, the voids of the contaminated soil become large, and the superheated steam injected in the contaminated soil effectively penetrates into the contaminated soil. In addition, the contact with the contaminated soil becomes effective, the treatment effect of the contaminants is further increased.

In particular, low-boiling low-volatile hydrocarbons can be converted to gaseous substances through vapor pressure increase or light hydrocarbons having low molecular weight, which can be removed and removed. It is possible to effectively deal with contaminants, including streams.

According to the test results, the contaminated soil purifying apparatus according to the present invention was able to effectively purify oil contaminants such as VOC, diesel, bunker C oil, lubricating oil, dioxin, PCB contaminated soil, and especially non-volatile oil contaminants and partial heavy metals. It is effective for quality removal, biological pretreatment application, and it can guarantee the quality of clean up, and the cleanup of contaminated soil can be performed in a short time with average cleanup period of 15 ~ 20 days / batch.

In addition, in the process of performing the above-described contaminated soil purification operation, a large amount of harmful gases such as oil vapor or water vapor generated from contaminants are generated, and the apparatus main body 100 is formed in a bucket type with an open lower portion. The gas is first collected in the apparatus body 100.

When the noxious gas recovery device 530 constituting the noxious gas recovery means 500 is operated, the noxious gas collected in the apparatus main body 100 is sucked into the suction port 521 of the suction nozzle 520 and the suction pipe 510 is operated. It can be recovered to the harmful gas recovery device 530 through to minimize the harmful gas in the soil purification treatment plant, it is possible to prevent the air pollution by minimizing the harmful gas emitted to the atmosphere from the soil purification treatment plant.

On the other hand, since the flattening plate 120 is provided at the front end of the apparatus main body 100, it is possible to simultaneously perform the planarization of the surface of the contaminated soil while performing the above-described purification. In addition, the flat plate 120 is installed so as to adjust the angle by the bolt 121 and the nut 122, and is elastically supported by the spring 123 so that the flattening operation of the contaminated soil surface can be more effectively performed do.

In addition, the soil purification treatment plant is equipped with a secondary air pollution prevention facility to prevent air pollution due to the release of harmful gases generated during the contaminated soil purification process into the atmosphere. In parallel with the steam treatment operation by the steam treatment apparatus in the treatment plant, the contaminated soil can be more efficiently performed.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

100: device body 120: flattening plate
200: shredding blade 210: shredding blade body
220: ear insertion unit 300: vibration motor
310: motor base 320: motor mount
330: dustproof pad 400: superheated steam injection means
410: superheated steam supply pipe 420: superheated steam distribution pipe
430: superheated steam injection pipe 440: connector
530: superheated steam source 500: harmful gas recovery means
510: suction pipe 520: suction nozzle
530: hazardous gas recovery device

Claims (9)

Coupled to equipment with a traveling device 2,
As a device having the traveling device (2) to clean the contaminated soil while running on the contaminated soil,
Device main body 100; A plurality of shredding blades 200 extending downwardly from the apparatus main body 100; A vibration motor 300 for vibrating the crushing blade 200; It is installed on the crushing blade 200 and includes a superheated steam injection means 400 for injecting superheated steam in the contaminated soil,
The apparatus main body 100 is formed in a bucket type with an open bottom surface to collect harmful gases generated from the ground in the process of purifying the contaminated soil,
Installed in the apparatus body 100 further includes a harmful gas recovery means 500 for sucking the harmful gas collected in the interior of the apparatus body 100 in the process of purifying contaminated soil and sends it to the outside,
While the equipment having the traveling device 2 runs on the contaminated soil, the superheated steam penetrates into the contaminated soil while cutting and crushing the soil by the crushing blade 200.
While the equipment having the traveling device 2 travels on contaminated soil,
Pollutant soil purifying apparatus, characterized in that to collect the harmful gas generated from the pollutant in the device body (100) through the open lower surface of the device body (100).
delete The method of claim 1,
One side of the upper surface of the apparatus main body 100, a coupler 110 for mounting on the equipment (1), such as backhoe, characterized in that the soil cleaning device characterized in that it is provided. The method of claim 1,
Soil cleaning device, characterized in that the front end portion of the device body 100 is provided with a flattening plate 120 for flattening the surface of the soil. 5. The method of claim 4,
The flattening plate 120 is installed so that the angle adjustable by the bolt 121 and the nut 122, as well as elastically installed by the spring (123). The method of claim 1,
The shredding blade 200 is characterized in that it comprises a shredding blade main body 210 having a serrated blade portion 211 on the rear side, and the ear insertion portion 220 coupled to the front side of the shredding blade body 210. Soil contaminants The method of claim 1,
The vibration motor 300 is mounted to a motor mount 320 fixed inside the apparatus body 100 through a motor base 310, and a vibration pad between the motor base 310 and the motor mount 320. 330 or contaminated soil purification apparatus characterized in that the high-strength spring is installed. The method of claim 1,
The superheated steam injection means 400 is a superheated steam supply pipe 410 penetrating the upper surface of the apparatus body 100, the superheated steam distribution pipe 420 connected to the superheated steam supply pipe 410, and the shredding blade Superheated steam injection pipe 430 provided at the front end of the 200, the connection pipe 440 connecting the superheated steam distribution pipe 420 and the superheated steam injection pipe 430, and generates a superheated steam to overheat Polluted soil purification apparatus comprising a superheated steam supply source 450 for supplying a steam supply pipe (410). The method of claim 1,
The noxious gas recovery means 500 has a suction nozzle 510 penetrating the upper surface of the apparatus main body 100 and a suction nozzle 521 extending horizontally from the lower end of the suction tube 510 to be opened on the lower surface. 520, and the polluted soil purification apparatus comprising a harmful gas recovery device 530 connected to the suction pipe (510).

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