CN212051026U - Decontamination system for oily solid waste - Google Patents

Abstract

The utility model provides a scrubbing system for oiliness solid waste. The decontamination system includes: the decontamination device comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a first inlet and a second inlet, and the decontamination device is used for carrying out primary oil-sludge separation on the oily solid waste; the ultrasonic treatment device is arranged independently from the decontamination device; the first circulation branch is arranged between the first inlet and the first outlet and the ultrasonic treatment device; and the second circulating branch is arranged between the second inlet and the second outlet and the ultrasonic treatment device, wherein the first shell of the decontamination device is communicated with the ultrasonic treatment device through the first circulating branch and the second circulating branch. The technical scheme of the utility model the ultrasonic treatment device among the prior art has been solved effectively and has been difficult to the problem of full play scrubbing function.

Description

Decontamination system for oily solid waste

Technical Field

The utility model relates to a scrubbing system field particularly, relates to a scrubbing system for oiliness solid waste.

Background

Petroleum and petroleum products produce a large amount of oil-bearing solid waste during their exploration, exploitation, refining, storage and transportation to their final consumption. Because the components are complex, the oily solid waste is often a pollution source of soil and water sources under natural conditions. Therefore, the harmless treatment and resource utilization of the oily solid waste, and the restoration and the secondary tillage of the oil-contaminated soil are the important work of the current environmental protection treatment.

At present, the treatment technology of the oily solid waste includes a microbial treatment technology, a chemical remediation technology and an incineration method. These techniques have some effect, but all have some drawbacks. Although the chemical remediation method can achieve a good oil removal effect, the problems of large consumption of chemical reagents and secondary pollution exist, and the microbial remediation technology is limited to the influence of various environmental factors and has long remediation time. The incineration method has large energy consumption and high cost, and can only be used for treating the polluted soil with small area. The ultrasonic decontamination technology is an advanced repair technology, and compared with other treatment technologies, the ultrasonic decontamination technology has the advantages of high speed, high efficiency, no secondary pollution, easiness in implementation and the like.

Ultrasonic decontamination is a physical process, and is mainly based on cavitation of ultrasonic decontamination, so that pressure of liquid is changed to rapidly form countless tiny vacuum bubbles and rapidly implode, and strong impact energy is generated instantly, so that the combination of petroleum hydrocarbon substances and soil is damaged, and the petroleum hydrocarbon substances and the soil are easy to desorb. A few foreign researchers have introduced the ultrasonic technology into the decontamination of oil-containing solid waste, but there are few domestic literature reports, so that applying the ultrasonic technology to the oil-containing solid waste requires more research to provide theoretical basis and technical support. According to investigation, Wuhai lock and the like disclose an ultrasonic auxiliary leaching device for repairing heavy metal contaminated soil, and the device has good stability and low cost; however, the oily solid waste in the ultrasonic auxiliary leaching device flows under the action of the dead weight, so that the flow rate of the oily solid waste in the ultrasonic auxiliary leaching device cannot be accurately controlled, the acting time of an ultrasonic transducer on the oily solid waste is difficult to control, and the effect of the ultrasonic transducer is easy to cause insufficient; panbin et al disclose a movable ultrasonic stirring decontamination tank for repairing heavy metal contaminated soil, the device has compact structure, convenient transfer and high efficiency, but the ultrasonic irradiation oscillation effect of the device and the mechanical stirring effect of a stirring paddle can affect each other, thereby causing partial energy loss; chencaixia et al disclose an ultrasonic decontamination system for oil-containing silt in oil field, which has a good treatment effect, but the decontamination system has an ultrasonic vibration plate mounted on the side wall inside the treatment tank, which can form a dead angle during decontamination, resulting in difficulty in decontaminating partial materials.

That is, it is difficult for the ultrasonic treatment device in the above-described decontamination system to sufficiently exhibit the decontamination function.

Disclosure of Invention

A primary object of the present invention is to provide a decontamination system for oily solid waste to the problem that the ultrasonic treatment device of the decontamination system in the prior art is difficult to the full play decontamination function.

In order to achieve the above object, the present invention provides a decontamination system for oily solid waste, the decontamination system comprising: the decontamination device comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a first inlet and a second inlet, and the decontamination device is used for carrying out primary oil-sludge separation on the oily solid waste; the ultrasonic treatment device is arranged independently from the decontamination device; the first circulation branch is arranged between the first inlet and the first outlet and the ultrasonic treatment device; and the second circulating branch is arranged between the second inlet and the second outlet and the ultrasonic treatment device, wherein the first shell of the decontamination device is communicated with the ultrasonic treatment device through the first circulating branch and the second circulating branch.

Further, the decontamination device also includes an agitator disposed within the first housing.

Further, the agitator includes one or more agitating blades and a drive shaft connected to the agitating blades.

Further, when stirring vane is a plurality of, a plurality of stirring vane set up along the axial interval of transmission shaft, in the direction of the central axis of perpendicular to transmission shaft, two adjacent stirring vane dislocation set.

Further, the decontamination device also comprises a driving piece connected with the transmission shaft.

Further, the ultrasonic treatment device includes a second housing and a plurality of ultrasonic transducers provided on an outer wall surface of the second housing.

Further, a plurality of ultrasonic transducers are arranged along the outer wall surface of the second shell in a spiral mode, or the plurality of ultrasonic transducers are arranged along the circumferential direction and the axial direction of the second shell at intervals.

Further, the sewage disposal system further includes a hydraulic pump and a regulating valve provided on the first circulation branch.

Furthermore, the decontamination system also comprises a first control valve arranged on the second circulation branch, and the first control valve is used for controlling the on-off of the second circulation branch.

Furthermore, the decontamination system also comprises a liquid inlet pipeline communicated with the first shell and a second control valve arranged on the liquid inlet pipeline; the decontamination system also includes a drain line in communication with the first housing and a third control valve disposed on the drain line.

Use the technical scheme of the utility model, ultrasonic treatment device and scrubbing device independent setting, the mechanical stirring with scrubbing device is separately with ultrasonic treatment device's ultrasonic oscillation intensive action, accomplishes in two systems respectively, has reduced mutual interference to make ultrasonic treatment device can the full play breakdown of emulsion deoiling effect, and then improved scrubbing system to the scrubbing efficiency of oily solid waste.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of the abatement system according to the present invention; and

fig. 2 shows a view of the stirring vane of the desmear system of fig. 1 in the direction of P.

Wherein the figures include the following reference numerals:

10. a decontamination device; 11. a first housing; 111. a first inlet/outlet; 112. a second inlet/outlet; 12. a stirrer; 121. a stirring blade; 122. a drive shaft; 13. a drive member; 20. an ultrasonic treatment device; 21. a second housing; 22. an ultrasonic transducer; 30. a first circulation branch; 40. a second circulation branch; 41. a first control valve; 50. a hydraulic pump; 60. adjusting a valve; 70. A liquid inlet pipeline; 71. a second control valve; 80. a drainage line; 81. and a third control valve.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The utility model discloses a provided a scrubbing system in the embodiment of the utility model, the ingenious problem of having solved because the ultrasonic treatment device that the stirring function of scrubbing system and ultrasonic irradiation vibrate the function and influence each other and lead to among the prior art is difficult to the full play scrubbing function (the problem of failing full play breakdown of emulsion deoiling effect promptly), furthest has played the effect of ultrasonic treatment device to be applicable to and carry out the scrubbing to the oily solid waste of different properties.

Additionally, because the utility model discloses a scrubbing system size in the embodiment is not big, and compact structure can integrate on the large-scale cleaning device that has built, therefore this scrubbing system has better compatibility, and the large-scale cleaning device's of being convenient for transformation upgrading has further expanded the range of application of ultrasonic enhanced wave scrubbing technique. Moreover, the decontamination system is a green and efficient decontamination system, chemical cleaning agents are not required to be added, and waste liquid containing a large amount of surfactants can be avoided, so that secondary pollution to the environment is reduced.

It should be noted that before the oily solid waste enters the decontamination system, the oily solid waste and water are prepared into an oily solid waste slurry according to a certain proportion.

As shown in fig. 1, in an embodiment of the present invention, the decontamination system includes a decontamination apparatus 10, an ultrasonic treatment apparatus 20, a first circulation branch 30, and a second circulation branch 40. The decontamination device 10 comprises a first shell 11, wherein the first shell 11 is provided with a first inlet and outlet 111 and a second inlet and outlet 112, and the decontamination device 10 is used for performing primary oil-sludge separation on the oily solid waste; the ultrasonic treatment device 20 is arranged independently from the decontamination device 10; the first circulation branch 30 is disposed between the first port 111 and the ultrasonic treatment device 20; the second circulation branch 40 is disposed between the second port 112 and the ultrasonic treatment device 20, wherein the first housing 11 of the decontamination device 10 communicates with the ultrasonic treatment device 20 via the first circulation branch 30 and the second circulation branch 40.

Among the above-mentioned setting, ultrasonic treatment device 20 and scrubbing device 10 independent setting, reinforce the effect separately with mechanical stirring and ultrasonic oscillation, accomplish in two systems respectively, reduce mutual interference, avoided like this among the prior art because ultrasonic treatment device 20 is located scrubbing device 10's inside, and the ultrasonic treatment device 20 and the scrubbing device 10 mutual interference that lead to, thereby make ultrasonic treatment device 20 difficult problem with the full play scrubbing function, and then improved the scrubbing system to the scrubbing efficiency of oily solid waste. In addition, by utilizing the first and second circulating branches 30 and 40, the oily solid waste can circularly flow between the decontamination device 10 and the ultrasonic treatment device 20, and the oily solid waste can be subjected to a plurality of times of decontamination treatment through the decontamination device 10 and the ultrasonic treatment device 20, so that the decontamination efficiency of the decontamination system is further improved.

As shown in fig. 1, in the embodiment of the present invention, the dirt removing device 10 further includes an agitator 12 disposed in the first housing 11. In the above arrangement, the stirrer 12 rotates at a certain speed under the action of external force to stir the oily solid waste in the first housing 11 and separate the mineral oil from the oily solid waste, thereby implementing the decontamination treatment of the oily solid waste by the decontamination device 10.

The embodiment of the utility model provides an in, because the mechanical stirring effect and the ultrasonic oscillation that utilize agitator 12 reinforce the effect and accomplish respectively in two independent casings, avoided the influence in ultrasonic wave mechanical stirring flow field to first casing 11 in, be convenient for set up optimal agitator form and stirring strength according to different material properties, reinforcing shearing action strengthens peeling off of solid phase surface mineral oil.

As shown in fig. 1 and 2, in the embodiment of the present invention, the stirrer 12 includes a plurality of stirring blades 121 and a transmission shaft 122 connected to all of the plurality of stirring blades 121. In the above arrangement, under the action of external force, the transmission shaft 122 rotates to drive the stirring vane 121 to rotate, so that the shearing friction force is generated on the contact surface of the stirring vane 121 and the oily solid waste, and the mineral oil and the like in the oily solid waste can be separated, thereby realizing the preliminary decontamination treatment of the oily solid waste by the decontamination device 10. The plurality of stirring blades 121 make the contact surface area of the stirring blades 121 with the oily solid waste larger, so that the mineral oil in the oily solid waste can be better separated, thereby improving the decontamination capability of the decontamination device 10.

Specifically, as shown in fig. 1 and 2, the stirrer 12 includes two stirring blades 121, the two stirring blades 121 are respectively sleeved on the outer periphery of the transmission shaft 122, and the two stirring blades 121 are respectively fixed on the outer wall of the transmission shaft 122 by fasteners. Two stirring vane 121 set up along the axial interval of transmission shaft 122, and in the direction of the central axis of perpendicular to transmission shaft 122, two adjacent stirring vane 121 dislocation set, transmission shaft 122 can drive above-mentioned two stirring vane 121 and rotate simultaneously.

In the above-mentioned setting, the dislocation set of two adjacent stirring vane 121 makes two adjacent stirring vane 121 and the contact surface dislocation arrangement of oily solid waste, when transmission shaft 122 rotated under the exogenic action, two above-mentioned stirring vane 121 can be in the orientation of difference shear oily solid waste simultaneously to the shearing capacity of stirring vane 121 to oily solid waste has been strengthened, and then the scrubbing ability of scrubbing device 10 has been improved.

Of course, in alternative embodiments of the invention, which are not shown in the figures, one or three or more stirring blades 121 can be provided in the stirrer 12, depending on the actual situation.

It should be noted that, the staggered arrangement of two adjacent stirring blades 121 means that two adjacent stirring blades 121 are arranged at an included angle in a direction perpendicular to the central axis of the transmission shaft 122.

Preferably, as shown in fig. 2, the included angle between adjacent two of the agitating blades 121 in the direction perpendicular to the central axis of the drive shaft 122 is 90 °. This enables a better separation of the mineral oil from the oily solid waste, and thus a better decontamination of the decontamination apparatus 10.

As shown in fig. 1, in the embodiment of the present invention, the pollutant removing device 10 further comprises a driving member 13 connected with the transmission shaft.

In the above arrangement, the driving member 13 is used to drive the transmission shaft 122 to rotate, so that the stirrer 12 can work normally, and the efficiency can be improved.

In particular, as shown in fig. 1, the driving member 13 is a motor.

Of course, in an alternative embodiment of the invention, which is not shown in the drawings, the drive element 13 can be provided as a hydraulic motor, depending on the actual situation.

As shown in fig. 1, in an embodiment of the present invention, the ultrasonic processing apparatus 20 includes a second housing 21 and a plurality of ultrasonic transducers 22 disposed on an outer wall surface of the second housing 21.

In the above arrangement, the second housing 21 provides a separate flowing space for the oily solid waste, so that the ultrasonic transducer 22 sends ultrasonic waves to the oily solid waste in the second housing 21, and the mineral oil in the oily solid waste is separated by using the vibration principle of the ultrasonic waves, thereby realizing the decontamination treatment of the oily solid waste by the ultrasonic treatment device 20.

It is to be noted that ultrasonic decontamination is a physical process, and the principle thereof is mainly based on cavitation of ultrasonic decontamination, so that pressure in liquid is changed to rapidly form numerous tiny vacuum bubbles and rapidly implode, strong impact energy is generated instantaneously, and combination of petroleum hydrocarbon substances (such as mineral oil) and solid waste is destroyed, so that the petroleum hydrocarbon substances and the solid waste are easily desorbed.

Specifically, as shown in fig. 1, the second housing 21 is a circular tube with a diameter within 100mm-300mm, wherein the ratio of the length to the diameter of the circular tube is relatively large, so that the circular tube provides a narrow flow channel for the oily solid waste, so that the ultrasonic transducer 22 can be intensively arranged, and the sound intensity density requirement of the ultrasonic transducer 22 can be met. In addition, because the diameter of the circular tube is limited in the above range, the problem of serious ultrasonic attenuation caused by large ultrasonic propagation distance is effectively avoided, so that the ultrasonic oscillation intensity of the ultrasonic transducer 22 on the oil-containing solid waste is ensured, and the dirt removing capability of the ultrasonic treatment device 20 on the oil-containing solid waste is further ensured.

Preferably, the round pipe is made of stainless steel, so that the round pipe has good corrosion resistance, the corrosion effect of the oily solid waste on the round pipe is greatly reduced, the round pipe is not easily corroded and damaged by the oily solid waste, and the long service life of the ultrasonic treatment device 20 is ensured.

Of course, in an alternative embodiment not shown in the drawings of the present invention, the second housing 21 may be configured as a tubular structure with other shapes such as a rectangle, a cone, or an ellipse, according to the actual situation. Of course, in alternative embodiments not shown in the drawings of the present invention, other materials with corrosion resistance, such as nickel alloy, can be used for the second housing 21, depending on the actual situation.

As shown in fig. 1, in the embodiment of the present invention, the plurality of ultrasonic transducers 22 are disposed along the outer wall surface of the second housing 21 in a spiral manner.

The arrangement mode enables the ultrasonic transducer 22 to be more intensively arranged on the outer wall of the second shell 21, so that the requirement of the ultrasonic transducer 22 on the sound intensity density is met, and the dirt removing capability of the ultrasonic treatment device 20 on the oil-containing solid waste is further ensured.

Like this, concentrated the ultrasonic transducer 22 of having arranged a greater amount in relative "narrow and small" space for ultrasonic energy concentrates more, has reduced the ultrasonic attenuation because of propagation distance produces by a wide margin, and sound intensity density is bigger, and is also stronger to material ultrasonic oscillation effect, thereby can the full play demulsification deoiling effect.

Of course, in an alternative embodiment not shown in the drawings of the present invention, the plurality of ultrasonic transducers 22 may be disposed at intervals along both the circumferential direction and the axial direction of the second housing 21 according to actual conditions.

As shown in fig. 1, in the embodiment of the present invention, the sewage disposal system further includes a hydraulic pump 50 and a regulating valve 60 provided on the first circulation branch 30. In the above arrangement, the oily solid waste in the decontamination device 10 can be pumped into the ultrasonic treatment device 20 by the pumping energy of the hydraulic pump 50, so as to facilitate the subsequent treatment of the oily solid waste by the ultrasonic treatment device 20. The setting of the regulating valve 60 enables the rate at which the oily solid waste in the abatement device 10 flows into the ultrasonic treatment apparatus 20 to be controlled, thereby controlling the flow rate of the oily solid waste into the ultrasonic treatment apparatus 20.

Further, after the adjusting valve 60 is arranged, according to different material properties, the opening degree and the circulation frequency of the adjusting valve 60 can be used for flexibly controlling the ultrasonic oscillation time, and the adaptability is high.

According to the decontamination system, a chemical cleaning agent is not required to be added, the generation of cleaning waste liquid containing a large amount of surfactant is avoided, the secondary pollution is reduced, and the decontamination system is green and efficient.

As shown in fig. 1, the first circulation branch 30 is provided with a hydraulic pump 50 and a regulating valve 60, and the hydraulic pump 50 is connected in series with the regulating valve 60. The hydraulic pump 50 is closer to the ultrasonic treatment apparatus 10 than the regulating valve 60, and the oily solid waste is pumped into the regulating valve 60 by the hydraulic pump 50 and then enters the ultrasonic treatment apparatus 20. In the above arrangement, the hydraulic pumps 50 and the regulating valves 60 are small in number and simple in connection, and materials are saved under the condition that the pumping requirements and the flow control requirements of the oily solid waste are met, so that the production cost of the whole decontamination system is reduced.

Of course, in alternative embodiments of the present invention, not shown in the drawings, a plurality of hydraulic pumps 50 and a plurality of regulating valves 60 may be provided according to actual design requirements.

As shown in fig. 1, in the embodiment of the present invention, the decontamination system further includes a first control valve 41 disposed on the second circulation branch 40, and the first control valve 41 is used for controlling the on/off of the second circulation branch 40. In the above arrangement, the second circulation branch 40 can be cut off or opened by controlling the first control valve 41, so that the on/off requirement of the second circulation branch 40 is satisfied.

As shown in fig. 1, in the embodiment of the present invention, the decontamination system further includes a liquid inlet pipe 70 communicated with the first housing 11 and a second control valve 71 disposed on the liquid inlet pipe; the abatement system further comprises a drain line 80 communicating with the first housing 11 and a third control valve 81 disposed on the drain line.

In the above arrangement, the second control valve 71 can control the opening and closing of the liquid inlet line 70, and the third control valve 81 can control the opening and closing of the liquid outlet line 80. When the oily solid waste needs to be discharged into the sewage disposal device 10, the second control valve 71 is opened; when it is necessary to discharge the liquid or sludge in the first housing 11 of the sewage treatment apparatus 10, the third control valve 81 may be opened so that the drain line 80 is opened. Specifically, as shown in fig. 1, the first control valve 41 and the second control valve 71 are disposed at an upper portion of the first housing 11, and the third control valve 81 is disposed at a lower portion of the first housing 11. In the above arrangement, the oily solid waste flowing in from the second control valve 71 can flow into the third control valve 81 under the self-weight, which facilitates the subsequent discharge of the oily solid waste.

Specifically, the first control valve 41, the second control valve 71, and the third control valve 81 may be provided as flat gate valves. Because the flat gate valve has simple structure and is convenient to manufacture, the manufacturing cost of the decontamination system is greatly reduced.

Of course, in alternative embodiments not shown in the drawings of the present invention, the control valve may be a ball valve or other valve with a cut-off function, such as a butterfly valve.

The following describes a decontamination method for decontaminating oil-containing solid waste by using the decontamination system of the present application, with reference to fig. 1:

first, the third control valve 81 is closed, and the oil-containing solid waste is prepared with water in a certain ratio into an oil-containing solid waste slurry. Then, the second control valve 71 is opened, and the oily solid waste is introduced into the first housing 11 of the sewage disposal device 10 through the second control valve 71. At the same time, the motor is turned on, so that the stirrer 12 rotates at a certain speed to stir the oily solid waste to peel off the mineral oil adhered to the solid surface, thereby enhancing the decontamination effect.

And then the hydraulic pump 50, the regulating valve 60 and the first control valve 41 are sequentially opened, the oily solid waste is pumped into the regulating valve 60 through the hydraulic pump 50, and the oily solid waste entering the second housing 21 is controlled to be 5% -20% of the oily solid waste entering the decontamination device 10 through regulating the regulating valve 60.

When the oily solid waste flows into the second shell 21, the ultrasonic transducers 22 are started, and in the process of rising of the oily solid waste, the ultrasonic transducers 22 irradiate and vibrate the oily solid waste, and the action time is controlled to be 2-30 min. The oily solid waste after the ultrasonic irradiation is returned to the first casing 11 through the first control valve 41. As the oily solid waste is stirred and separated in the first housing 11, all the oily solid waste entering the decontamination device 10 gradually flows through the second housing 21 to be decontaminated by ultrasonic vibration.

After the solid waste slurry entering the decontamination device 10 flows through the second housing 21 and is ultrasonically vibrated to remove oil (so that the decontamination system completes a decontamination cycle), the third control valve 81 is opened to discharge the cleaned oily solid waste to the subsequent oil-water separation unit.

It should be noted that the oily solid waste can be circularly decontaminated for many times according to the actual pollution degree of the oily solid waste, and the third control valve 81 is opened after the oily solid waste is circularly treated, so that the decontaminated oily solid waste is discharged to the subsequent oil-water separation unit.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: ultrasonic treatment device and scrubbing device independent setting, reinforce the effect with mechanical stirring and ultrasonic oscillation separately, accomplish in two systems respectively, reduce mutual interference, avoided like this among the prior art because ultrasonic treatment device is located scrubbing device's inside, and the ultrasonic treatment device and the scrubbing device mutual interference that lead to make ultrasonic treatment device be difficult to the problem of full play scrubbing function, and then improved the scrubbing system to the scrubbing efficiency of oiliness solid waste. In addition, utilize first circulation branch road and second circulation branch road, can make the oily solid waste material circulation flow between scrubbing device and ultrasonic treatment device, can carry out scrubbing to the oily solid waste material through scrubbing device and ultrasonic treatment device and handle many times, further improved scrubbing system's scrubbing efficiency.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A desmutting system for oily solid waste, comprising:

a de-fouling device (10) comprising a first housing (11), the first housing (11) having a first inlet/outlet (111) and a second inlet/outlet (112), the de-fouling device (10) being for performing a preliminary sludge separation on the oily solid waste;

an ultrasonic treatment device (20) provided independently of the decontamination device (10);

a first circulation branch (30) disposed between the first inlet/outlet (111) and the ultrasonic treatment device (20);

a second circulation branch (40) disposed between the second inlet/outlet (112) and the ultrasonic treatment device (20), wherein the first housing (11) of the decontamination device (10) communicates with the ultrasonic treatment device (20) via the first circulation branch (30) and the second circulation branch (40).

2. The desmutting system for oily solid waste according to claim 1, characterized in that the desmutting device (10) further comprises an agitator (12) provided inside the first housing (11).

3. The desmutting system for oily solid waste as claimed in claim 2, wherein said agitator (12) comprises one or more agitating blades (121) and a driving shaft (122) connected to said agitating blade (121).

4. The desmutting system for oily solid waste according to claim 3, wherein when said stirring vanes (121) are plural, plural stirring vanes (121) are provided at intervals along the axial direction of said drive shaft (122), and adjacent two of said stirring vanes (121) are disposed at a position shifted in the direction perpendicular to the central axis of said drive shaft (122).

5. The desmutting system for oily solid waste as claimed in claim 3, wherein said desmutting device (10) further comprises a drive member (13) connected to said drive shaft (122).

6. The desmutting system for oily solid waste according to any one of claims 1 to 5, wherein the ultrasonic treatment device (20) comprises a second casing (21) and a plurality of ultrasonic transducers (22) provided on an outer wall surface of the second casing (21).

7. The decontamination system for oily solid waste according to claim 6, wherein a plurality of said ultrasonic transducers (22) are arranged in a spiral shape along the outer wall surface of said second housing (21), or wherein a plurality of said ultrasonic transducers (22) are arranged at intervals along both the circumferential direction and the axial direction of said second housing (21).

8. The desmutting system for oily solid waste according to any one of claims 1 to 5, characterized in that it further comprises a hydraulic pump (50) and a regulating valve (60) provided on said first circulation branch (30).

9. The de-fouling system for oily solid waste, according to any one of claims 1 to 5, characterized in that it further comprises a first control valve (41) arranged on the second circulation branch (40), said first control valve (41) being used to control the make-and-break of said second circulation branch (40).

10. The decontamination system for oil-containing solid waste according to any one of claims 1 to 5,

the decontamination system further comprises a liquid inlet pipeline (70) communicated with the first shell (11) and a second control valve (71) arranged on the liquid inlet pipeline (70);

the decontamination system further comprises a drainage pipeline (80) communicated with the first shell (11) and a third control valve (81) arranged on the drainage pipeline (80).

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