KR20090091630A - Apparatus for washing polluted material by oil - Google Patents

Abstract

An apparatus for washing an object polluted by oil is provided to separate oil from sand and gravel and wash the oil massively within a short time. An apparatus for washing an object polluted by oil comprises a micro bubble generator and a cleaning device(100). The micro bubble generator generates micro bubble. The cleaning device accepts an object(A) polluted by oil, micro bubble and fluid. The cleaning device washes the polluted object through the fluid in which micro bubble is contained. The cleaning device separates oil from the polluted object through micro bubble. The cleaning device is a cleaning bath equipped with a housing space. The housing space accepts the polluted object and cleans the object. The cleaning bath has an outlet port(102).

Description

Apparatus for washing polluted material by oil}

The present invention relates to an apparatus for cleaning an object contaminated with oil, and more particularly, the state of an object before being contaminated without using an ultra-miniature canister to alter or damage an object such as sand and gravel contaminated with oil. The present invention relates to an apparatus for cleaning the furnace so that it can be restored to its original state.

In general, when a ship sinks in the sea or a river, oil is leaked from the fuel tank of the ship to contaminate the sea or the river, and the fish farm is also contaminated with oil even in nearby farms and nearby beaches.

In particular, when the sunken vessel is an oil tanker, the damage caused by oil leakage is enormous, and the contaminated sea or river and nearby shores are only reduced to the extent that the workers prevent the oil from spreading through direct control.

In recent years, 1,810 tons of crude oil have been spilled into the sea as the Hebei Split, a 146,000-t oil tanker shipped from Hong Kong, is transported to the sea five miles northwest of Manlipo, Taean-gun, Chungnam, South Korea. there was.

Due to such an accident, the sea, as well as the nearby farms and beaches were contaminated with oil, causing enormous damage to property of neighboring residents, and it took several decades for the environmental ecosystem to be restored to its original state. It is a national effort to restore the original beaches and nearby beaches.

In the case of the above-mentioned accident, not only the amount of oil leaked is enormous but also the contaminated area is so large that it is not enough for the worker to reduce the damage through the control operation. It is only about wiping crude oil with non-woven fabrics by hand, and it is in a serious condition that it is impossible to determine how long it will take to recover the polluted coast.

To solve these problems, governments and academia are seeking technologies that can effectively remove crude oil, but have not yet found the best alternative.

The present invention has been made to solve the above problems, it is possible to separate and clean a large amount of oil from the object such as sand or gravel contaminated with oil in a short period of time as a micro-bubble, and generated after separation and cleaning from the object It is an object of the present invention to provide an apparatus for cleaning an oil-contaminated object, by which oil containing oil is separated into oil and water by microbubbles again, so that the separated fluid and oil can be recycled again.

According to an aspect of the present invention for achieving the above object, an apparatus for cleaning an object contaminated with oil, comprising: fine bubble generating means for generating fine bubbles; And contaminated the oil through a fluid containing an object contaminated with the oil, the microbubbles generated by the microbubble generating means, and a fluid therein, and the microbubbles in which the fluid and the microbubbles are mixed with each other. An apparatus for cleaning an object contaminated with oil is provided, including cleaning means for cleaning the object and separating the oil from the object contaminated with the oil by the microbubble.

The cleaning means is characterized in that the cleaning tank having a receiving space for receiving, cleaning and separating the object contaminated with the oil.

The washing tank has an open inlet for introducing an object contaminated with oil, and has an outlet for outflowing an object from which the fluid is separated after cleaning including the oil, and the receiving space has the oil from the inlet to the outlet. The apparatus further includes a conveying / stirring means for conveying and stirring the contaminated object.

The conveying / stirring means rotates in one direction through a motor and a reducer, and spirals on an outer circumferential surface to convey, stir and extrude an object contaminated with the oil introduced into the receiving space of the cleaning tank through the inlet to the outlet. Characterized in that it has a screw portion of the form.

The cleaning tank further includes a plurality of micro bubble inlet holes connected to the micro bubble generating means and pipes, a fluid inlet hole through which fluid is introduced, and a contaminated fluid outlet hole for outflowing a fluid including oil generated after cleaning and separation operations. do.

In another embodiment, the cleaning means has a receiving space for receiving and cleaning and separating the object contaminated with the oil, the receiving space is a cylindrical separator having a predetermined length to communicate with the inlet and the outlet It is characterized by.

The cylindrical separator is preferably inclined at an angle from the inlet side to the outlet side.

The cylindrical separator rotates in one direction through a motor and a reducer, and transfers and stirs the transfer spiral to the whole or part along the inner longitudinal direction so as to transfer and stir the object contaminated with oil introduced into the interior through the inlet to the outlet. Characterized in that the plate is formed.

The cylindrical separator further includes a ring gear receiving power from the motor and the reducer on an outer circumferential surface, wherein the cylindrical separator receives power from the motor and the reducer, wherein the ring gear is connected to a shaft of the reducer and the chain. It is characterized in that connected to.

The cylindrical separator is configured to heat a mixture of an oil contaminated object and a fluid containing micro bubbles at an inlet and a mixture of the object contaminated with oil and a fluid containing the micro bubbles on an inner circumferential surface or an outer circumferential surface thereof. It further includes a heater.

The cylindrical separator is supported by the support frame, the lower portion is characterized in that it is seated on a plurality of rollers provided in the support frame to enable self-rotation.

And a skimmer receiving both the object cleaned and separated from the outlet of the cylindrical separator and the oil-containing fluid at the same time, wherein the skimmer includes the skimmer, wherein the skimmer includes the cleaned and separated object and the oil. A skimmer tank for accommodating the fluid after cleaning and receiving the microbubbles from the microbubble generating means to float the fluid after cleaning containing the oil, and from the inner lower part of the skimmer tank to the outer upper part of the skimmer tank and having specific gravity. And a first conveyor system for transferring the cleaned and separated object having a relatively heavy weight to an outer side of the skimmer tank, and a post-cleaning fluid including the oil having a relatively high specific gravity and floating on the skimmer tank. Consisting of a second conveyor system for conveying to the other side of the skimmer It is characterized by.

The first and second conveyor systems include a plurality of rollers that are rotated by a drive motor and a conveying belt formed to surround the outside of the rollers, and the second conveyor system includes a predetermined angle from the conveying belt. It further comprises a plurality of plate members which are formed to protrude to draw or push the fluid after the cleaning containing the oil in the discharge direction.

The present invention is composed of a drive motor, a plurality of rollers rotated by the drive motor, and a conveyance belt formed to surround the outside of the rollers so as to transport and introduce the object contaminated with the oil to the cleaning means. Transfer / inflow conveyor systems; An oil and water separation tank configured to receive a fluid after washing including oil from the washing means, and to receive the microbubbles from the microbubble generating means to separate the fluid and the oil from the fluid containing the oil; An object storage tank configured to receive and store an object that separates and cleans the fluid containing oil from the oil / water separation tank; A fluid reservoir configured to receive and store the separated fluid from the oil / water separator; And an oil storage tank receiving and storing the separated oil from the oil / water separation tank and supplying the separated fluid to the cleaning means.

The oil and water separation tank has a space for accommodating the fluid containing the oil therein, and has a contaminated fluid inlet hole connected to the contaminated fluid outlet hole of the cleaning means so as to allow the inflow of the fluid containing the oil on one side thereof. And a separate fluid outlet hole through which a fluid separated from the fluid containing the oil flows out, and a separate oil outlet hole through which the oil separated from the fluid containing oil flows out, and the microbubble generating means. It further comprises a plurality of micro-bubble inlet holes connected through the pipe.

The oil-water separation tank further includes a third conveyor system at an upper portion, wherein the third conveyor system includes a plurality of rollers rotated by a driving motor, a transfer belt formed to surround the outside of the rollers, and the transfer belt. And a plurality of plate members protruding from the fluid at a predetermined angle to draw or push the oil, which has a relatively specific gravity relative to the fluid, to the oil reservoir.

The fluid reservoir has a re-fluid outlet, the re-fluid outlet is connected to the re-fluid inlet of the cleaning means and the pipe, and the fluid contained therein through the pressurizing means formed on the pipe is fixed to the cleaning means. It is characterized in that the supply amount.

The fluid reservoir is preferably further provided with a heater for heating the fluid therein.

It further comprises a gold dust collector for receiving an object from the object reservoir to separate and collect the dust from the object.

Preferably, the fluid is water, and the object is sand or gravel.

The present invention provides an apparatus for cleaning an object contaminated with oil, comprising: microbubble generating means for generating microbubbles; And the object contaminated with the oil, the microbubbles generated by the microbubble generating means, and the fluid together therein, and the microbubbles in which the fluid and the microbubbles are mixed with each other are contaminated with the oil. It includes washing means for cleaning the object and at the same time separates the fluid after cleaning containing the oil from the object contaminated with the oil by the microbubble, so that the oil as a microbubble from the object such as sand or gravel contaminated with the oil There is an excellent effect that can be separated and washed in large quantities in a short period of time.

The present invention further includes an oil and water separation tank for accommodating a fluid after washing including oil from the washing means, and receiving microbubbles from the microbubble generating means to separate the fluid and the oil from the fluid containing the oil. In addition, by separating the oil, including the oil generated after separation and cleaning from the object again by micro-bubbles, there is an excellent effect that the separated fluid and oil can be recycled again.

In addition, since the present invention has a gold dust collector which can separate and collect the gold dust from the cleaned and separated objects, it is possible to realize the high added value of one stone two trillion to obtain gold dust while cleaning and separating the objects contaminated with oil. It has an excellent effect.

Hereinafter, a preferred embodiment of an apparatus for cleaning an oil contaminated object according to the present invention will be described with reference to the accompanying drawings.

(First embodiment)

1 is a configuration diagram schematically showing a first embodiment of an apparatus for cleaning an object contaminated with oil according to the present invention.

As shown in FIG. 1, the apparatus for cleaning an object contaminated with oil according to the present invention corresponds to microbubble generating means (microbubble generating device 1 'of FIG. 2 and microbubble generating device of FIG. 3). And a cleaning means (100).

First, the microbubble generating means generates microbubbles, and a concept and a detailed description thereof will be described in detail in the following embodiments of the microbubble generating means.

On the other hand, the cleaning means 100 accommodates the object (A) contaminated with oil, the micro-bubbles generated by the micro-bubble generating means, and the fluid together therein, the micro-bubbles mixed with the fluid and the micro-bubbles It is to clean the object (A) contaminated with the oil through the fluid containing it and to separate the oil from the object (A) contaminated with the oil by the microbubble.

As shown in FIG. 1, the cleaning means 100 is a cleaning tank 100 having an accommodation space for receiving, cleaning and separating the object A contaminated with the oil.

The cleaning tank 100 accommodates the object A contaminated with the oil together with the fluid, receives the micro bubbles from the micro bubble generating means, and then cleans the oil A from the contaminated object A. Clean and separate fluid (C).

In an embodiment, the washing tank 100 has an open inlet 101 for introducing an object A contaminated with oil on one side and an object B for separating the fluid C after washing containing oil on the other side. It has an outlet 102 for flowing out.

The accommodation space of the cleaning tank 100 further includes a transfer / stirring means for transferring and stirring the object A contaminated with the oil from the inlet 101 to the outlet 102.

The transfer / stirring means 160 is provided inside the cleaning tank 100 to be rotated in one direction by the motor 161 and the reduction gear 164, but the receiving space of the cleaning tank 100 through the inlet 101 It is preferable to have a spiral screw portion 162 on the outer circumferential surface of the object (A) contaminated with the oil introduced into the transfer to the outlet (102).

In an embodiment, the conveying / stirring means 160 is provided inside the cleaning tank 100 and is supported by the bearings 163 at both ends to smoothly rotate.

The transfer / stirring means 160 receives the power of the motor 161 through the speed reducer 164 provided at one side of the cleaning tank 100.

Although not separately shown in the drawing, the power of the motor 161 is transmitted to the reducer 164 through the pulley and the belt, and the gear group (not shown) in the reducer 164 moves the transfer / stirring means 160. It rotates at a constant speed.

In this conveying / stirring means 160, the screw portion 162 transfers and consolidates the object A contaminated with the oil administered at the inlet 101 to the outlet 102, and the object A contaminated with the oil. It serves to stir smoothly the cleaning and separation of the fluid, including the oil from.

The screw portion 162 may be continuously provided in the longitudinal direction of the outer circumferential surface of the transfer / stirring means 160, or may be provided in plural in the longitudinal direction of the outer circumferential surface of the transfer / stirring means 160.

Most preferably, the width of the screw portion 162 along the longitudinal direction of the outer circumferential surface of the conveying / stirring means 160 has a relatively narrow width at one side and the other side and a relatively wide width at the center portion, so that the conveying / stirring / consolidation action may be performed. It is configured to proceed more smoothly.

Then, the cleaning tank 100 is generated after the cleaning and separation operations, the plurality of micro-bubble inlet 103 and the fluid inlet 104, the fluid flows through the micro-bubble generating means and the pipe 200 It further includes a contaminated fluid outlet hole 105 for outflowing the fluid (C) containing the oil to be.

The micro-bubble inlet 103 is arranged on the lower surface and the side of the cleaning tank 100 and the amount of contaminated object (A) flowing into the cleaning tank 100, the driving speed of the transfer / stirring means 160 and In order to keep the flow rate of the fluid, it is formed in the cleaning tank 100 in the most optimal width and arrangement.

The fluid flowing into the fluid inlet hole 104 may be raw water introduced from the water supply through the pipe 201 or seawater supplied from the sea, and the amount of the fluid introduced into the washing tank 100 may be a microbubble inlet hole. It is preferable to introduce the optimum amount by letting the amount of the microbubbles flowed into the (103).

Although not separately illustrated in the drawings, a flow rate sensor may be further provided on the pipe 200 connecting the micro bubble inlet hole 103 or the micro bubble generating means and the micro bubble inlet hole 103, and the fluid inlet hole ( 104 or on the pipe 201 connected to the fluid inlet 104 may be further provided with a flow rate sensor. This allows the amount of fluid supplied into the cleaning tank 100 and the amount of microbubbles to be mixed at an optimum ratio to separate and clean the fluid including the oil from the object A contaminated with the oil due to the mixed fluid and the microbubbles at this optimum ratio. This is to maximize the effect on the process.

In addition, although not separately shown in the figure, a water level sensor may be further provided in the cleaning tank 100 for the optimum ratio of the amount of fluid and the amount of microbubbles together with the flow rate sensor.

The contaminated fluid outlet hole 105 is preferably located on the lower surface of the cleaning tank 100 for smooth drainage, the contaminated fluid outlet hole 105 is the oil and water separation tank 130 and the pipe 202 described below. It is preferable to connect with).

In addition, the cleaning tank 100 may further include a re-fluid inlet hole 106, the operation and effects thereof will be described in detail in the description of the fluid reservoir 140 described below.

In this embodiment, the object contaminated with oil (for example, sand and gravel: A) is preferably accommodated in the receiving space of the cleaning tank 100 by the transfer / inflow conveyor system 110. The conveying / inflow conveyor system 110 may continuously convey a certain amount of contaminated object A to flow into the receiving space of the cleaning tank 100.

The conveying / inflow conveyor system 110 is composed of a driving motor, a plurality of rollers rotated by the driving motor, and a conveying belt formed to surround the outside of the rollers. Since the configuration of the transfer / inlet conveyor system 110 is a well-known technique, detailed description of the configuration and operation will be omitted here.

However, the transfer / inflow conveyor system 110 may be removed as necessary, and when the transfer / inflow conveyor system 110 is removed, heavy equipment such as a fork lane may be used.

In addition, the present invention further includes an oil and water separation tank 130, an object reservoir 120, a fluid reservoir 140, and an oil reservoir 150.

First, the oil-water separation tank 130 receives the post-cleaning fluid C containing the oil from the washing tank 100 and receives the microbubbles from the microbubble generating means from the fluid C containing the oil. It is to separate fluid and oil separately.

In an embodiment, the oil-water separation tank 130 has a space for accommodating the fluid (C) after cleaning containing the oil therein, the cleaning tank to allow the inflow of the fluid (C) after cleaning containing the oil on one side Separating fluid outlet hole having a contaminated fluid inlet hole 105 of the 100 and the contaminated fluid inlet hole 131 connected to the pipe 202, the fluid separated from the fluid (C) containing the oil on the other side flows out 132, and a separated oil outlet hole 134 through which oil separated from the fluid C containing the oil flows out.

In addition, the oil-water separation tank 130 further includes a plurality of micro-bubble inlet holes 133 connected through the micro-bubble generating means and the pipe 203.

The amount of the fine bubbles flowing into the oil and water separation tank 130 through the micro-bubble inlet hole 133 is preferably to introduce an optimum amount by letting the amount of the fluid (C) containing the oil.

Although not separately illustrated in the drawings, a flow rate sensor may be further provided on the pipe 203 connecting the micro bubble inlet hole 133 or the micro bubble generating means and the micro bubble inlet hole 133, and the contaminated fluid inlet hole may be provided. The flow rate sensor may be further provided on the pipe 202 connecting the 131 or the contaminated fluid inlet hole 131 and the contaminated fluid outlet hole 105. This is to mix the amount of the fluid (C) containing the oil supplied in the oil and water separation tank 130 and the amount of the micro bubbles at an optimum ratio to separate the oil and the fluid due to the fluid and the micro-bubbles containing the oil mixed at the optimum ratio This is to increase the effect as much as possible.

In addition, although not separately shown in the drawings, the water level sensor in the oil-water separation tank 130 for the optimum ratio of the amount of the fluid (C) containing the oil and the amount of the micro-bubbles in addition to the flow rate sensor is further It may be provided.

The object storage tank 120 receives and stores the object B, which has separated and cleaned the fluid C containing oil from the cleaning tank 100, through the object outlet hole 102 to the object inlet hole 121. It is.

The fluid reservoir 140 receives and stores the separated fluid D from the oil / water separation tank 130 through the pipe 204 to the separation fluid inlet hole 141.

In addition, the oil storage tank 150 receives and stores the separated oil E from the oil water separation tank 130 through the pipe 205 to the separated oil inflow hole 151.

Preferably, the object reservoir 120, the fluid reservoir 140, and the oil reservoir 150 have an accommodation space for storing the object B, the fluid D, and the oil E therein, respectively. The fluid reservoir 140 has a re-fluid outlet 142, the re-fluid outlet 142 is connected to the re-fluid inlet 106 and the pipe 206 of the cleaning tank 100, the pipe It is possible to further configure a system capable of resupplying the fluid D in the fluid reservoir 140 to the cleaning tank 100 in a predetermined amount through a pressurizing means 170 such as a pump formed on the 206.

The additional circulation system as described above has an excellent effect of remarkably reducing the amount of fluid initially introduced into the cleaning tank 100 by recycling the fluid D stored in the fluid storage tank 140.

In the above additional circulation system, the fine fluid from the fluid (D) flowing out to the re-fluid outlet 106 is filtered in the pipe 206 connecting the re-fluid outlet 142 and the re-fluid inlet 106 to each other. Filter No. 10-2007-0052287 (name: valve for microbubble generating device) which the applicant has filed and determined by the applicant on May 29, 2007 may be applied. The installation position of the filter or the valve for the micro bubble generator is shown by reference numeral '180' in the drawing.

In the apparatus for cleaning an object contaminated with oil in accordance with the present invention, the pipe connected to the microbubble generating means, that is, the pipe connecting the microbubble generating means and the cleaning tank, and the pipe connecting the microbubble generating means and the oil / water separation tank are as follows. It is preferable to be connected to the "outlet side pipe 5 of the mixing chamber 3 '" in FIG. 2, and the end or nozzle 13a of the "drain pipe 13" in FIGS. 3, 5, and 6 described below. It is preferable to connect directly with ")".

In addition, the present invention may be automatically controlled by the control unit, the opening and closing valve which is opened and closed by the signal of the control unit may be further provided on each pipe. In addition, the control unit may be electrically connected to the flow rate sensor and the water level sensor mentioned above to receive a signal.

Although not shown separately in the drawings in this embodiment, it is possible to include a heater separately in the cleaning tank 100 and the fluid storage tank 140, the heater is contaminated with the oil in the oil in the cleaning tank ( A), and the fluid (D) in the fluid reservoir 140 by heating to a constant temperature to the heating of the object (A) contaminated with the oil contained in the cleaning tank 100 and the fluid reservoir 140 and the fluid ( Eventually, the heating of D) may serve to more effectively separate the oil from the object A contaminated with the oil.

(2nd Example)

7 is a schematic view showing a second embodiment of an apparatus for cleaning an oil contaminated object according to the present invention, and FIG. 8 is a schematic diagram of an apparatus for cleaning an oil contaminated object according to the present invention. 2 is a front view illustrating a cylindrical separator, FIG. 9 is a cross-sectional view taken along line AA in FIG. 8, FIG. 10 is a cross-sectional view taken along line BB in FIG. 8, and FIG. 11 is contaminated with oil according to the present invention. FIG. 12 is a simplified diagram showing a skimmer in a second embodiment of an apparatus for cleaning a given object, and FIG. 12 shows an oil / water separation tank in a second embodiment of an apparatus for cleaning an oil contaminated object according to the present invention. It is a simplified diagram.

As shown in FIG. 7, the apparatus for cleaning an object contaminated with oil according to the present invention corresponds to microbubble generating means (microbubble generating device 1 ′ of FIG. 2 and microbubble generating device of FIG. 3). Configuration) and a cleaning means (300).

First, the microbubble generating means generates microbubbles, and a concept and a detailed description thereof will be described in detail in the following embodiments of the microbubble generating means as mentioned above.

On the other hand, the cleaning means 300 accommodates the object contaminated with oil (A: FIG. 8), the object contaminated with oil, the microbubbles generated by the microbubble generating means, and the fluid together therein, The oil containing the micro-bubbles mixed with the fluid and the micro-bubbles to clean the object (A) contaminated with the oil and at the same time separates the oil from the object (A) contaminated with the oil by the micro-bubbles. will be.

As shown in FIG. 7, the cleaning means 300 is a cylindrical separator 300 unlike the first embodiment.

As illustrated in FIGS. 8 to 10, the cylindrical separator 300 has an accommodation space for receiving, cleaning and separating the object A contaminated with oil.

And the receiving space of the cylindrical separator 300 is preferably formed to communicate with the inlet 301 and the outlet 302 having a predetermined length, the cylindrical separator 300 is the outlet 302 at the inlet 301 side. It is inclined at an angle to the side.

At this time, the inclination of the cylindrical separator 300 is preferably in the range of an acute angle from the ground, and most preferably in the range of approximately 10 ° ~ 45 °.

And the cylindrical separator 300 rotates in one direction through the motor 303 and the reducer 304, the object contaminated by the oil introduced into the interior through the inlet 301 in the inner receiving space of the cylindrical separator 300 ( Forming a spiral for feeding the spiral (305) for performing the function of transferring the A) to the outlet 302, and a plurality of stirring plates (306) for stirring the object (A) contaminated with the oil is formed desirable.

The conveying spiral 305 is preferably formed in the inlet 301 portion and the outlet 302 portion along the inner longitudinal direction of the receiving space in the cylindrical separator 300, the conveying spiral 305 is It may be formed in the entire receiving space of the cylindrical separator 300 as necessary.

In addition, when the plurality of stirring plates 306 are cut in the cross-section of the cylindrical separator 300, a plurality of stirring plates 306 may be formed at regular intervals, and the stirring plates 306 may be formed along the inner longitudinal direction of the receiving space. Or preferably formed in part.

Rotation principle of the cylindrical separator 300 is possible by the following configuration.

The outer circumferential surface of the cylindrical separator 300 further includes a ring gear 307 that receives power from the motor 303 and the reducer 304.

And the ring gear 307 of the cylindrical separator 300 is a gear 309 and a chain 310 coupled to the shaft 308 of the reducer 304 to receive power from the motor 303 and the reducer 304. Connected. However, the ring gear 307 of the cylindrical separator 300 may receive power directly from the gear 309 coupled to the shaft 308 of the reducer 304 as needed.

At the inlet 301 of the cylindrical separator 300, a hopper 311 is formed to simultaneously introduce a fluid contaminated with oil and a fluid containing fine bubbles.

The hopper 311 prevents the oil-contaminated object A from the conveying / inflow conveyor system 320 described below from flowing down to the outside of the cylindrical separator 300, and at the same time, the fluid containing the microbubble is also cylindrical. The cleanliness of the separator 300 may be kept clean, and the oil-contaminated object A and the fluid containing the micro bubbles are not lost, thereby maximizing the cleaning efficiency of the oil-contaminated object A. You can.

This hopper 311 is connected with a transfer / inlet conveyor system 320, a pipe 206 through which fluid flows out, and a pipe 200 through which microbubbles flow out, in an embodiment.

The heater 312 is further provided on the inner circumferential surface or the outer circumferential surface of the cylindrical separator 300 to heat the mixture of the object A contaminated with the oil and the fluid containing the microbubbles.

The heat generated by the heater 312 has the effect of making it easier to separate the oil from the object A contaminated with the oil.

Cylindrical separator 300 is supported by a lower support frame 313, the cylindrical separator 300 is preferably mounted on a plurality of rollers 314 provided in the support frame 313 to enable self-rotation. .

In the present embodiment, the cleaning means 300 further includes a skimmer 330 in addition to the cylindrical separator 300.

As shown in FIG. 11, the skimmer 330 is simultaneously provided with the object B cleaned and separated from the outlet 302 of the cylindrical separator 300 and the post-cleaning fluid C containing the oil.

Here, the skimmer 330 is provided with the object B cleaned and separated from the outlet 302 of the cylindrical separator 300 and the post-cleaning fluid C including the oil in the cylindrical separator 300. The skimmer 330 is positioned below the outlet 302 to directly receive the cleaned and separated object B and the post-cleaning fluid C including the oil, or the outlet 302 and the skimmer 330. Through the connecting pipe (not shown), the cleaned and separated object B and the post-cleaning fluid C containing the oil may be provided.

This skimmer 330 includes a skimmer 331, a first conveyor system 332, and a second conveyor system 333.

The skimmer tank 331 accommodates the object B cleaned and separated by the cylindrical separator 300 and the post-cleaning fluid C including the oil, and receives the microbubbles from the microbubble generating means to include the oil. After the washing, the fluid C is suspended.

Although the skimmer tank 331 is not separately shown in the drawing, it is preferable that the microbubbles are continuously supplied through a pipe connected to the microbubble generating means.

In addition, the first conveyor system 332 is provided from the inner lower portion of the skimmer 331 to the outer upper portion of the skimmer 331 to clean and separate a relatively heavy object B of the skimmer 331 of the skimmer 331. Transfer to the outside one side.

The first conveyor system 332 includes a plurality of rollers rotated by the drive motor, and a conveyance belt formed to surround the outside of the rollers. Since the configuration of the first conveyor system 332 is already well known technology, further description thereof will be omitted.

The second conveyor system 333 is provided at the upper portion of the skimmer tank 331 and transfers the cleaning fluid C containing the oil having a relatively light specific gravity to the outside of the skimmer tank 331.

The second conveyor system 333 includes a plurality of rollers that are rotated by the drive motor in the same way as the first conveyor system 332, and a conveying belt formed to surround the outside of the rollers, and is fixed from the conveying belt. It further comprises a plurality of plate members 334 formed to protrude at an angle to draw or push the cleaning fluid (C) containing the oil in the discharge direction.

In the figure, the plate members 334 are formed to maintain an angle of 90 ° from the conveying belt, but maintaining an acute angle in the direction of discharge of the fluid can more effectively attract or push out the fluid C containing the oil after cleaning. will be.

On the other hand, the present embodiment is similar to the first embodiment described above, the oil contaminated object (A) is a cylindrical separator which is a cleaning means by the transfer / inlet conveyor system 320 (corresponding to '110' in Fig. 1) It is preferable to be accommodated in the accommodation space of (300). The configuration of the transfer / inlet conveyor system 320 is the same as that of the first embodiment, and detailed descriptions of the configuration and operation are omitted here.

In addition, the present invention further includes an oil and water separation tank 340, an object storage tank 350, a fluid storage tank 360, and an oil storage tank 370 as in the first embodiment.

First, the oil / water separation tank 340 receives the post-cleaning fluid C containing the oil from the skimmer 330 forming the cleaning means together with the cylindrical separator 300, and receives the microbubbles from the microbubble generating means. It is to separate the fluid and the oil from the fluid (C) containing the oil, respectively.

In FIG. 12, the oil and water separation tank 340 further includes a third conveyor system 341 at the top.

The third conveyor system 341 includes a plurality of rollers rotated by a driving motor, a conveying belt formed to surround the outside of the rollers, and protruded at a predetermined angle from the conveying belt so that specific gravity is relatively higher than that of the fluid. And a plurality of plate members 342 for pulling or pushing the light oil E into the oil reservoir 370.

In addition, although not separately shown in the drawing, the oil and water separation tank 340 is a plurality of micro-bubble inlet hole (reference numeral '133 in Figure 1) connected through the micro-bubble generating means and the pipe (see reference numeral' 203 'of Figure 1). More).

The amount of micro bubbles flowing into the oil / water separation tank 340 through the micro bubble inlet hole 133 is preferably introduced in an optimal amount by allowing the oil C to contain an amount of the fluid C included therein.

Since the object reservoir 350 and the oil reservoir 370 have the same pipe shape and function as the first embodiment, detailed description thereof will be omitted here (see FIG. 1).

The fluid reservoir 360 preferably has a receiving space for storing the fluid (D: see FIG. 1) therein, and the fluid reservoir 360 is a re-fluid outlet (refer to '142' in FIG. 1). The re-fluid outflow hole 142 is connected to the hopper 311 of the cylindrical separator 300 by a pipe (see reference numeral 206 in FIG. 1), and a pump formed on the pipe 206. Through the pressurizing means (see reference numeral '170' of FIG. 1), it is possible to further configure a system capable of supplying the fluid (D) in the fluid reservoir 360 to the cylindrical separator 300 in a predetermined amount.

In addition, it is preferable that a heater 312 'is further provided inside the fluid reservoir 360, and the heater 312' heats the fluid D in the fluid reservoir 360 to a constant temperature to form a cylindrical separator 300. In the case of supplying), it serves to more effectively separate the oil from the object (A) contaminated with the oil contained in the cylindrical separator 300.

The additional circulation system as described above has an excellent effect of remarkably reducing the amount of fluid initially introduced into the cylindrical separator 300 by recycling the fluid D stored in the fluid reservoir 360.

In addition, the present embodiment is a re-fluid outflow hole 106 in the pipe 206 connecting the re-fluid outflow hole (142 (see Fig. 1)) and the re-fluid inlet hole (106 (see Fig. 1)) in the additional circulation system described above. Filter for filtering out fine impurities from the outflowing fluid (D) or No. 10-2007-0052287 (name: valve for microbubble generating device) ) May be applied (see reference numeral '180' in FIG. 1).

Piping and microbubble generating means for connecting the microbubble generating means and the microbubble generating means and the cylindrical separator 300 and the skimmer tank 331 in the apparatus for cleaning an object contaminated with oil in accordance with the present invention; The pipe connecting the oil and water separation tank 340 is preferably connected to the "outlet pipe 5 of the mixing chamber (3 ') in Figure 2 described below, and in Figures 3, 5, and 6 described below It is preferable to directly connect with the "end of the water pipe 13 or the nozzle 13a".

In addition, the present invention may be automatically controlled by the control unit, the opening and closing valve may be further provided on each pipe by the signal of the control unit. In addition, the control unit may be electrically connected to a flow rate sensor and a water level detection sensor that may be installed in the skimmer tank 331, the oil / water separator tank 340 of the skimmer 330, and may receive a signal.

On the other hand, the present invention further includes a gold dust collector 380 for receiving the object (B) from the object storage tank 350 to separate and collect the dust from the object (B).

The movement of the object B from the object reservoir 350 to the gold duster 380 is possible via heavy equipment such as a conveyor belt system or a fork lane.

The gold dust collector 380 in the present invention is, for example, domestic utility model publication No. 20-0228958, domestic utility model publication No. 20-0228758, domestic patent publication No. 10-0508301, domestic utility Apparatuses described in Shinan Publication No. 20-0175678 and Domestic Utility Model Publication No. 1981-0001771 can be applied.

However, in addition to the above-mentioned types of gold dust collector 380, it is possible to apply generally known gold dust collectors to the present invention, and it is also possible to collect the gold dust in the object B by hand even if it is not necessarily a gold dust collector. .

Hereinafter, with reference to the accompanying drawings will be described the basic principle and configuration of the above-described micro-bubble generating means in the apparatus for cleaning the object contaminated with oil according to the present invention.

FIG. 2 is a conceptual view of ultra-miniature bubble generating means in the apparatus for cleaning an object contaminated with oil according to the present invention, and microbubble generating means (hereinafter referred to as microbubble generating device 1 ') is a gas and a liquid. And a pump 2 'for sucking and mixing the mixture, and a mixing chamber 3' for sucking the mixture of the gas and the liquid mixed in the pump 2 'and remixing the gas and the liquid.

Pipes 4 and 5 are respectively extended to the inlet and the outlet of the mixing chamber 3 ', and the pump 2' is connected to the inlet pipe 4 of the mixing chamber 3 '. In addition, at the inlet side of the pump 2 ', two pipes 6 and 7 are branched. When the pump 2' is operated, liquid flows in through one of the pipes 6, and another pipe is connected. Gas is introduced through (7). On the pipe 7 into which the gas is introduced, an intake valve 7a is installed to adjust the amount of gas to be supplied to the pump 2 '. At the outlet side of the mixing chamber 3 ', a nozzle 8 for discharging the mixture of the remixed gas and liquid is provided.

From this configuration, in the mixing chamber 3 ', the pressure inside the chamber is controlled by the pressing force by the pump 2', the adjustment of the nozzle 8, and optionally the deformation of the internal structure of the mixing chamber 3 '. With this, a large amount of fine bubbles are generated in the mixing chamber 3 'and discharged through the outlet pipe 5 of the mixing chamber 3'. Reference numeral 3'a in FIG. 2 is a pressure gauge, and 3'b is an outlet.

In the present invention, the gas is preferably air, oxygen or ozone in the atmosphere, and the liquid is preferably water.

Hereinafter, an embodiment of the aforementioned micro bubble generating means will be described.

In the following embodiments, the above-described gas may be selected from general air, oxygen or ozone. In the case of the liquid described above, water may be used.

[Example 1 of Micron Cannon Generating Means]

3 is a view showing a schematic configuration of the ultra-miniature bubble generator according to FIG. 2, as shown in the drawing, the microbubble generator of the present invention includes a pump 10 and the mixing of FIG. The pressurized tank 20 corresponding to the chamber 3 'is made into a basic structure.

The outlet side of the pump 10 is connected to the inlet side of the pressurized tank 20 by a pipe (water pipe 11), and the inlet side of the pump 10 and the outlet side of the pressurized tank 20 are pipes (water pipe; 12). And 13 are drawn out to extend into the reservoir 15.

A flow control valve 14 and a check valve 16 may be provided between the inlet portion 12a of the water pipe 12 and the pump 10 to regulate the supply of water introduced from the reservoir 15. In addition, an intake pipe 17 for introducing air in the atmosphere is connected between the water inlet 12a of the water pipe 12 and the pump 10. In the present invention, the connection point of the intake pipe 17 may be preferably between the flow control valve 14 and the check valve 16 shown in FIG.

The intake pipe 17 is provided with a flow meter 18 and a three-way valve 19 on the intake pipe 17 in an extended state outside the reservoir 15. The first branch pipe 17a extends to one side of the three-way valve 19 so that air in the air is introduced, and the second branch pipe 17b extends to the other side of the three-way valve 19. It is connected to an oxygen generator (or ozone generator; 30, hereinafter referred to as an 'oxygen / ozone generator'). The first branch pipe 17a and the second branch pipe 17b may communicate with the intake pipe 17 according to the opening and closing direction of the three-way valve 19, and thus, air and oxygen / ozone generator 30 in the atmosphere Supply of oxygen or ozone by) is selectively made according to the opening and closing direction of the three-way valve (19).

As shown in FIG. 3, an intake valve 19a is installed on the second branch pipe 17b. This intake valve (19a) is to adjust the amount of oxygen or ozone supplied to the pump 16, but not shown separately to be able to adjust the amount of air supplied through the first branch pipe (17a) in the atmosphere Of course, it may be installed on the intake pipe (17). In addition, a nozzle 13a for discharging and controlling the mixture of the gas and the liquid including the micro bubbles is installed at an end of the water pipe 13 extending from the pressure tank 20, that is, the water outlet. To this end, the nozzle (13a) is preferably made of a porous form and a structure that can be opened and closed.

In FIG. 3, reference numeral '20a' is a static pressure gauge, '20b' is a negative pressure gauge, and '20c' represents a safety valve.

Figure 4 shows an embodiment of the pressure tank according to Figure 3, showing a schematic form of the internal structure of the pressure tank.

As shown, the pressurized tank 20 has an inlet 21 for introducing a mixture of water and air or oxygen (or ozone) that is pumped from the pump 10, and generated inside the pressurized tank 20. It has an outlet 22 for discharging bubbles.

The pressurizing tank 20 has an inner space of a predetermined size, and has one or more plate layers 23, 24, 25, and 26 connecting the inner wall across the inner space from the inlet side to the outlet side. It is preferable that a plurality of plate layers 23, 24, 25, and 26 are provided at regular intervals as shown in the drawings. Each of the plate layers 23, 24, 25, and 26 has water, air or Holes 23a, 23b, 24a, 25a, 25b, 26a, such as orifices, may be formed to allow a mixture of oxygen (or ozone) to pass through. In addition, the diameter and the number of the holes 23a, 23b, 24a, 25a, 25b, and 26a formed in each of the plate layers 23, 24, 25 and 26 may be optional depending on the required pressure of the mixture passing therethrough. .

On the other hand, reference numeral '13a' which is not described in FIG. 4 represents a nozzle (see FIG. 3).

From the above configuration, the pressurized mixture of water and air or oxygen (or ozone) flows into the pressure tank 20 and exits the pressure tank 20 until each plate layer 23, 24, 25, 26 Passes quickly through the holes 23a, 23b, 24a, 25a, 25b, and 26a formed in FIG.

In particular, the pressurized mixture has a faster through flow rate as it approaches the outlet 22 side. Further, the closer to the outlet port 22 side, the faster the pressure of the fluid in each plate layer is reduced, as opposed to the faster through-flow velocity of the fluid. This very rapid decrease in pressure in such a short time results in the generation of smaller bubbles than the limit rpm size bubbles generated in the DAF, resulting in a greater number of fine bubbles.

From the configuration of the microbubble generating device described above, the process of changing the mixture of gas and liquid pumped through the pump while passing through the pressure tank is described as follows:

The supply of water and air (oxygen or ozone) to the pressure tank 20 is made by the operation of the pump 10. With the operation of the pump 10, water is transported into the pump along the second water pipe 12, and at the same time, the air is generated in the air or oxygen / ozone generator 30 through the intake pipe 17. Oxygen (or ozone) is conveyed and mixed in the pump (10). That is, the supply of air and oxygen (or ozone) is selectively performed in accordance with the opening and closing direction of the three-way valve 19. When the second branch pipe 17b is closed by the three-way valve 19, Air is supplied, and oxygen (or ozone) generated in the oxygen / ozone generator 30 is supplied when the first branch pipe 17a is closed by the three-way valve 19.

The air (oxygen or ozone) carried to the pump 10 together with the water is primarily broken down by the rotation of the impeller (not shown) inside the pump 10 to generate bubbles in the dissolved state in the water. It is pumped into the inside of the pressure tank 20 through the pipe (11). The mixture of water and air (oxygen or ozone) introduced into the pressure tank 20 through the inlet 21 is formed in the holes 23a, 23b, 24a, which are formed in the plate layers 23, 24, 25, and 26, respectively. Passing through 25a, 25b, 26a, a high turbulent mixing region is generated behind each of the holes 23a, 23b, 24a, 25a, 25b, 26a.

Turbulent flow in this region causes severe pressure fluctuations and negative pressure regions are created because of low jet stream pressure. Under these conditions, bubbles are generated every time a sudden pressure drop occurs, and as shown in FIG. 4, more and smaller bubbles are generated as they pass through the plurality of plate layers.

[Example 2 of Micron Cannon Generating Means]

5 is a perspective view illustrating a modification of the pressure tank according to FIG. 3, and FIG. 6 is a cross-sectional view illustrating an internal structure of the pressure tank according to FIG. 5.

As shown, the pressure tank 20 'is composed of a double chamber structure of the inner chamber 27 and the outer chamber 28. The outer chamber 28 is provided in a sealed upper portion, and the inner chamber 27 has a form in which the upper portion is opened while being spaced apart from an inner wall of the outer chamber 28. The surface of the outer chamber 28 is provided with an inlet 21 'and an outlet 22' which are connected to the respective water pipes 11 and 13 (see FIG. 3), and these inlets 21 'and the outlet 22'. ), Pipes 20'a and 20'b extend inwardly of the pressure tank 20 ', respectively.

Preferably, the inlet pipe 20'a extending from the inlet 21 'extends into the inner chamber 27 to the bottom and the outlet pipe 20'b extending from the outlet 22' is the inner chamber. It extends through the spaced space between the 27 and the outer chamber 28 to the bottom of the outer chamber 28.

From the above-described modification of the pressurized tank, the process of changing the mixture of gas and liquid conveyed by the pump through the pressurized tank is described as follows:

The air (oxygen or ozone) carried to the pump 10 together with the water from the configuration of FIG. 3 is primarily broken by the rotation of an impeller (not shown) inside the pump 10 to generate bubbles in a dissolved state in water. And, it is conveyed to the inside of the pressure tank 20 'through the first water pipe (11).

A mixture of water and air (oxygen or ozone) introduced through the inlet 21 'of the pressurized tank 20' is supplied into the inner chamber 27 through the inlet pipe 20'a and from the inner chamber 27. The overflowing mixture W fills the interior of the outer chamber 28, ie the space between the outer chamber 28 and the inner chamber 27.

At this time, the air (A) which is not completely dissolved is separated out of the water and filled in the space of the inner upper portion of the pressure tank 20 ', and the mixture continues through the inlet pipe 20'a to the outer chamber 28. Is filled in. In this process, a large pressure is applied to the mixture in the pressure tank 20 ', and the dissolved air in the water is maintained at a high pressure.

On the other hand, the pressurized mixture rises at a higher speed along the outlet pipe 20'b, and is discharged along the third water pipe 13 extending to the outside of the pressure tank 20 ', and the third water pipe The closer to the nozzle 13a (refer to FIG. 3) located at the distal end of 13, the faster the flow rate is to have the maximum through flow rate at the moment passing through the nozzle 13a.

In addition, as the closer to the nozzle 13a, the faster the penetration flow rate of the pressurized mixture is, the pressure of the mixture is rapidly decreased to have the lowest pressure at the moment passing through the nozzle 13a. Microbubbles are generated from the dissolved air in the mixture.

Due to this rapid decrease in pressure generated in such a short time, the mixture of water and air (or oxygen or ozone) generates smaller bubbles than the limit rpm size bubbles generated in the DAF, while also producing more fines. Bubbles are generated.

Since the technical proof for generating the microbubble from the above-described embodiments is fully described in the experimental content and experimental results in the detailed description of the application No. 10-2007-0052288 filed on May 29, 2007 , A detailed description thereof will be omitted here.

1 is a configuration diagram schematically showing a first embodiment of an apparatus for cleaning an oil contaminated object according to the present invention;

Figure 2 is a conceptual diagram of the ultra-mini-foam generating means in the apparatus for cleaning the object contaminated with oil according to the present invention,

3 is a view showing a schematic configuration of the ultra-miniature gun generator according to FIG.

Figure 4 is a simplified view showing a preferred embodiment of the pressurized tank according to Figure 3,

5 is a perspective view showing a modification of the pressure tank according to FIG.

6 is a cross-sectional view showing the internal structure of the pressure tank according to FIG.

7 is a configuration diagram schematically showing a second embodiment of an apparatus for cleaning an oil contaminated object according to the present invention;

8 is a front view showing a cylindrical separator in a second embodiment of an apparatus for cleaning an oil contaminated object according to the present invention;

9 is a cross-sectional view taken along the line A-A in FIG. 8,

FIG. 10 is a cross-sectional view taken along line B-B in FIG. 8;

11 is a simplified diagram showing a skimmer in a second embodiment of the apparatus for cleaning an oil contaminated object according to the present invention,

12 is a simplified diagram showing an oil / water separation tank in a second embodiment of the apparatus for cleaning an oil contaminated object according to the present invention.

Explanation of symbols on the main parts of the drawing

10: pump 11, 12, 13: water pipe

12a: inlet section 14: flow control valve

15: reservoir 16: check valve

17: intake pipe 17a, 7b: branch pipe

18: flow meter 19: three-way valve

20,20 ': Pressurized tank 30: Oxygen / ozone generator

20'a: Inflow piping 20'b: Outflow piping

21,21 ': Inlet 22,22': Outlet

27: inner chamber 28: outer chamber

23, 24, 25, 26: plate layer 23a, 23b, 24a, 25a, 25b, 26a: hole

100: cleaning tank 101: inlet

102: outlet 103: fine bubble inlet hole

104: fluid inlet hole 105: contaminated fluid outlet hole

106: re-fluid inlet 110: transfer / separation conveyor system

120: object reservoir 121: object inlet

130: oil and water separation tank 131: contaminated fluid inlet hole

132: separation fluid outlet hole 133: micro-bubble inlet hole

134: separation oil outlet 140: fluid reservoir

141: separation fluid inlet hole 142: re-fluid outlet hole

150: oil reservoir 151: separated oil inlet hole

160: transfer / stirring means 161: motor

162: threaded portion 163: bearing

164: reducer 170: pressurizing means

180: Filter or valve installation position 200, 201, 202, 203, 204, 205, 206: Piping

300: cylindrical separator 301: inlet

302: outlet 303: motor

304: reducer 305: feed spiral

306: stirring plate 307: ring gear

308: reducer shaft 309: gear

310: chain 311: hopper

312,312 ': Heater 313: Support frame

314: roller 320: transfer / inlet conveyor system

330: skimmer 331: skimmer

332: first conveyor system 333: second conveyor system

334: plate member 340: oil / water separator

341: third conveyor system 342: plate member

350: object reservoir 360: fluid reservoir

370: oil reservoir 380: gold duster

Claims (20)

An apparatus for cleaning an oil contaminated object, Microbubble generating means for generating microbubbles; And The object contaminated with the oil, the microbubble generated by the microbubble generating means, and the fluid are accommodated therein, and are contaminated with the oil through a fluid containing the microbubble mixed with the fluid and the microbubble. And cleaning means for cleaning an object and simultaneously separating the oil from the object contaminated with the oil by the microbubble. The method of claim 1, wherein the cleaning means, And a cleaning tank having an accommodation space for accommodating, cleaning and separating the object contaminated with the oil. The washing tank of claim 2, wherein Has an open inlet for introducing an object contaminated with oil, and an outlet for outflowing an object from which the fluid is separated after cleaning containing oil, And the receiving space further comprises a conveying / stirring means for conveying and stirring the object contaminated with the oil from the inlet to the outlet. The method of claim 3, wherein the transfer / stirring means, It rotates in one direction through a motor and a reducer, and has a spiral screw portion on the outer circumferential surface to transfer, stir, and extrude the contaminated object with the oil introduced into the receiving space of the cleaning tank through the inlet to the outlet. For cleaning objects contaminated with oil. The washing tank of claim 4, Contaminated with oil further comprising a plurality of micro-bubble inlet hole connected through the micro-bubble generating means and the pipe, the fluid inlet hole through which the fluid flows, and the contaminated fluid outlet hole for outflowing the fluid containing the oil generated after the cleaning and separation operation Apparatus for cleaning injured objects. The method of claim 1, wherein the cleaning means, It has an accommodating space for accommodating the object contaminated with the oil to clean and separate, the accommodating space is a cylindrical separator formed to communicate the inlet and outlet with a certain length to the object contaminated with oil Device for cleaning. The method of claim 6, wherein the cylindrical separator, And an inclination at an angle from the inlet side to the outlet side. The method of claim 7, wherein the cylindrical separator, Rotating in one direction through the motor and the reducer, the conveying spiral and the stirring plate is formed in whole or in part along the inner longitudinal direction to transport and stir the contaminated object with the oil introduced into the interior through the inlet to the outlet Apparatus for cleaning objects contaminated with oil, characterized in that. The method of claim 8, wherein the cylindrical separator, The outer peripheral surface further comprises a ring gear for receiving power from the motor and the reducer, And the cylindrical separator receives power from the motor and the reducer, wherein the ring gear is connected in chain with a gear coupled to the shaft of the reducer. The method of claim 9, wherein the cylindrical separator, A hopper for simultaneously introducing an oil contaminated object and a fluid containing microbubbles to an inlet, and a heater for heating a mixture of the oil-contaminated object and the fluid containing the microbubbles on an inner circumferential surface or an outer circumferential surface thereof; Apparatus for cleaning objects contaminated with oil, characterized in that. The method of claim 10, wherein the cylindrical separator, The lower part is supported by the support frame, the device for cleaning oil-contaminated objects, characterized in that seated on a plurality of rollers provided in the support frame to enable self-rotation. The method of claim 11, It further comprises a skimmer receiving an object cleaned and separated from the outlet of the cylindrical separator and the post-cleaning fluid containing the oil at the same time, The skimmer may include a skimmer tank configured to receive the cleaned fluid including the cleaned and separated object and the oil, and to receive the microbubbles from the microbubble generating means to float the washed fluid including the oil; A first conveyor system provided from an inner lower portion of the skimmer to an outer upper portion of the skimmer to transfer the cleaned and separated objects having a relatively high specific gravity to an outer side of the skimmer; And a second conveyor system provided at the top of the skimmer tank and configured to transfer the fluid after cleaning including the oil having a relatively low specific gravity and floating to the other side of the skimmer tank to the outside of the skimmer tank. Device. The method of claim 12, The first and second conveyor systems include a plurality of rollers that are rotated by a drive motor, and a conveyance belt formed to surround the outside of the rollers, wherein the second conveyor system has a predetermined angle from the conveyance belt. And a plurality of plate members protrudingly formed to draw or push the fluid after cleaning including the oil in a discharge direction. The method according to any one of claims 1 to 13, A conveying / inflow conveyor composed of a driving motor for transporting and introducing an object contaminated with the oil to the cleaning means, a plurality of rollers rotated by the driving motor, and a conveying belt formed to surround the outside of the rollers system; An oil and water separation tank configured to receive a fluid after washing including oil from the washing means, and to receive the microbubbles from the microbubble generating means to separate the fluid and the oil from the fluid containing the oil; An object storage tank configured to receive and store an object that separates and cleans the fluid containing oil from the oil / water separation tank; A fluid reservoir configured to receive and store the separated fluid from the oil / water separator; And And an oil storage tank receiving and storing the separated oil from the oil-water separation tank and supplying the separated fluid to the cleaning means. The oil and water separation tank of claim 14, It has a space for accommodating the fluid containing the oil therein, has a contaminated fluid inlet hole connected to the contaminated fluid outlet hole of the cleaning means and the pipe to enable the inflow of the fluid containing the oil on one side, the oil on the other side A plurality of fluid having a separation fluid outflow hole through which the fluid separated from the fluid containing the fluid flows out; and a separation oil outflow hole through which the oil separated from the fluid including the oil flows out, and connected through the pipe with the microbubble generating means. Apparatus for cleaning the contaminated objects in the oil further comprising a micro-bubble inlet of the. The oil and water separation tank of claim 14, Further comprising a third conveyor system at the top, The third conveyor system includes a plurality of rollers rotated by a driving motor, a transfer belt formed to surround the outside of the rollers, and a protrusion formed at a predetermined angle from the transfer belt so that specific gravity is relatively lighter than the fluid. And a plurality of plate members for drawing or pushing said oil into said oil reservoir. The method of claim 14, wherein the fluid reservoir, It has a re-fluid outflow hole, the re-fluid outflow hole is connected to the re-fluid inlet hole of the cleaning means and the pipe, it is to supply a predetermined amount of fluid contained therein through the pressurizing means formed on the pipe A device for cleaning an object contaminated with oil. The method of claim 14, wherein the fluid reservoir, The apparatus for cleaning the oil-contaminated object further comprises a heater for heating the fluid therein. The method of claim 14, And a dust collector for receiving an object from the object reservoir and separating and collecting the dust from the object. The method of claim 14, Wherein the fluid is water, and the object is sand or gravel.

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