CN113813649A

CN113813649A - Draw oil-water separator for eucalyptus oil

Info

Publication number: CN113813649A
Application number: CN202011134721.3A
Authority: CN
Inventors: 郑钦方
Original assignee: Huaihua Wulingsan Dong Pharmaceutical Technology Development Co ltd
Current assignee: Hunan University of Medicine
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-12-21
Anticipated expiration: 2040-10-21
Also published as: CN113813649B

Abstract

The invention discloses an oil-water separation device for extracting eucalyptus oil, which comprises a box shell, a first separation tank, a second separation pipe, an oil collecting tank, a transfer component and a lifting component, wherein the first separation tank is arranged on the box shell; the box housing comprises a first side plate and a second side plate which are oppositely arranged, and a top plate and a bottom plate which are oppositely arranged; the first and second separation tanks are both disposed inside the tank housing, the first separation tank being proximate the first side plate; the second separation tank is adjacent to the second side plate; the transfer assembly comprises a feeding pipe, a feeding pump, a discharging pipe and a discharging pipe; the feeding pipe is fixedly arranged on the first side plate in a penetrating manner; the first separation tank comprises a first top wall, a first side wall and a first bottom wall; the oil-water separation device for extracting the eucalyptus oil can greatly improve the oil-water separation efficiency of the crude eucalyptus oil.

Description

Draw oil-water separator for eucalyptus oil

Technical Field

The invention relates to the technical field of eucalyptus oil production equipment, in particular to an oil-water separation device for extracting eucalyptus oil.

Background

The eucalyptus oil is volatile oil obtained by steam distillation of Eucalyptus globulus Labill of Myrtaceae, Cinnamomum camphora of Lauraceae, or other plants of the same genus of the two families, and is colorless or yellowish, and has special fragrance and is slightly similar to Camphora. Has effects of dispelling pathogenic wind and relieving pain, and can also be used for treating skin pruritus, neuralgia, etc.

Distilling the above raw materials to obtain crude eucalyptus oil, and purifying the crude eucalyptus oil with an oil-water separation device. The oil-water separation device realizes the separation of oil droplets and water in the crude eucalyptus oil under a static or flowing state by utilizing the difference of the densities of oil and water and the incompatibility of the oil and the water, thereby realizing the purification of the eucalyptus oil.

However, most of the existing oil-water separation devices are passive, and the oil and the water in the crude eucalyptus oil are slowly separated in a static state, and then the water is accumulated more and more until the oil overflows from an oil overflow port. The oil-water separation efficiency of the oil-water separation device is low.

Disclosure of Invention

The invention mainly aims to provide an oil-water separation device for extracting eucalyptus oil, and aims to solve the problem that the existing oil-water separation device is low in oil-water separation efficiency.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

an oil-water separation device for extracting eucalyptus oil comprises a box shell, a first separation tank, a second separation pipe, an oil collecting tank, a transfer component and a lifting component;

the box housing comprises a first side plate and a second side plate which are oppositely arranged, and a top plate and a bottom plate which are oppositely arranged; the first and second separation tanks are both disposed inside the tank housing, the first separation tank being proximate the first side plate; the second separation tank is adjacent to the second side plate;

the transfer assembly comprises a feeding pipe, a feeding pump, a discharging pipe and a discharging pipe; the feeding pipe is fixedly arranged on the first side plate in a penetrating manner; the first separation tank comprises a first top wall, a first side wall and a first bottom wall; the first top wall is provided with a first feed inlet and a first through hole; the outlet end of the feeding pipe extends into the first feeding hole; the inlet end of the feeding pipe is communicated with the outlet end of the feeding pump; the inlet end of the feeding pipe is communicated with a raw material source;

the first side wall is provided with a first overflow port; the second separation tank comprises a second top wall and a second side wall; the second top wall is provided with a second feeding hole; one end of the discharge pipe is communicated with the first overflow port; the other end of the discharge pipe extends into the second feed port;

the second side wall is provided with a second overflow port; the discharge pipe is fixedly arranged on the second side plate in a penetrating manner; one end of the discharge pipe is communicated with the second overflow port; the other end of the discharge pipe is communicated with the oil collecting tank; the oil collecting tank is arranged outside the box shell;

the lifting assembly comprises a screw rod, a nut, a lifting plate and a first driving part; the screw rod is vertically and rotatably connected to the inner surfaces of the top plate and the first bottom wall; the screw rod is movably arranged in the first through hole in a penetrating way; the top end of the screw rod extends out of the top plate;

the nut is matched and sleeved on the screw rod; the lifting plate is fixedly sleeved on the outer side wall of the nut; the lifting plate is provided with a plurality of vertically arranged flow holes; the first driving component is used for driving the screw rod to rotate.

Preferably, the device further comprises a first electromagnetic valve and a second electromagnetic valve; the first electromagnetic valve is arranged on the discharge pipe and used for controlling the connection and the disconnection of the discharge pipe; the second electromagnetic valve is arranged on the discharge pipe and used for controlling the connection and the closing of the discharge pipe.

Preferably, the screw rod is connected to the inner surface of the first bottom wall through a bearing; the upper part of the screw rod is rotatably connected to the top plate through a bearing.

Preferably, the first driving part comprises a first motor, a first gear and a second gear; the first driving part is used for driving the screw rod to rotate, and the structure is as follows: the first gear is coaxially and fixedly sleeved at the top end of the screw rod; the second gear is coaxially and fixedly sleeved on the output shaft of the first motor; the first motor is fixed on the upper surface of the top plate; the first gear is engaged with the second gear.

Preferably, the stirring device further comprises a stirring component; the stirring assembly comprises a stirring shaft, a stirring blade and a second driving part; the second separation tank comprises a second bottom wall; a second through hole is formed in the center of the second top wall; the stirring shaft is vertically and rotatably connected to the second bottom wall and the top plate; the stirring blade is connected with the stirring shaft; the stirring blade is positioned in the second separation tank; the stirring shaft movably penetrates through the second through hole; the second driving part is used for driving the stirring blade to rotate.

Preferably, the second drive component comprises a coupling and a second motor; the second motor is fixedly connected right above the stirring shaft; an output shaft of the second motor is vertically arranged; the stirring shaft is coaxially connected to the output shaft of the second motor through the coupler.

Preferably, the case housing further comprises a third side panel connected to both the first side panel and the second side panel; the third side plate is provided with an observation window; a vertical first long groove is formed in the position, close to the third side plate, of the first side wall; and a transparent first partition plate is embedded in the first long groove in a sealing manner.

Preferably, the second separation tank further comprises a second side wall; a vertical second long groove is formed in the position, close to the third side plate, of the second side wall; a transparent second partition plate is embedded in the second long groove in a sealing manner; the observation window is used for observing the first partition plate and the second partition plate.

Preferably, the dust cover is further included; the dust cover is arranged on the upper surface of the top plate; the dust cover is used for covering the first driving part and the second driving part.

Preferably, an opening of the discharge pipe, which is communicated with one end of the oil collecting tank, faces downwards vertically; the oil collecting tank is lower than the second overflow port; the oil collecting tank is also provided with air holes; the second separation tank is lower than the first overflow port.

Compared with the prior art, the invention at least has the following beneficial effects:

the oil-water separation device for extracting the eucalyptus oil can greatly improve the oil-water separation efficiency of the crude eucalyptus oil.

The specific working principle is as follows: when the oil-water separation device is used, crude eucalyptus oil is conveyed to the feeding pipe through the feeding pump firstly, and then enters the first separation tank, after the crude eucalyptus oil in the first separation tank is filled to a certain height (higher than the first overflow port), the first driving part is started, so that the screw rod is driven to rotate, under the action of the guide rod, the nut and the lifting plate are synchronously lifted, so that the crude eucalyptus oil in the first separation tank is disturbed, the separation and layering of the eucalyptus oil and the water of the crude eucalyptus oil in the first separation tank are accelerated (the specific gravity of the water is greater than that of the eucalyptus oil, so that the eucalyptus oil floats on the upper layer of the water), after the eucalyptus oil and the water layers are stabilized, the eucalyptus oil flows out from the first overflow port through the discharging pipe and is discharged to the second separation tank, after the next oil-water separation in the second separation tank is carried out, the purified eucalyptus oil passes through the discharging pipe and flows out from the second overflow port, and finally enters the oil collection tank, compared with the traditional standing separation oil-water separation device, the oil-water separation device provided by the invention has a better oil-water separation effect by arranging the lifting assembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an internal structure of an embodiment of an oil-water separator for extracting eucalyptus oil according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is a schematic view of an appearance structure of an embodiment of the oil-water separation device for extracting eucalyptus oil according to the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an oil-water separation device for extracting eucalyptus oil.

Referring to fig. 1 to 4, in an embodiment of an oil-water separation device (hereinafter, referred to as an oil-water separation device) for extracting eucalyptus oil according to the present invention, the oil-water separation device includes a tank housing 100, a first separation tank 210, a second separation tank 310, an oil collection tank 170, a transfer assembly, and a lifting assembly.

The case housing 100 includes first and second oppositely disposed

side panels

130, 140, and oppositely disposed top and

bottom panels

110, 120; the first and

second separation tanks

210 and 310 are both disposed inside the tank case 100, the first separation tank 210 being adjacent to the first side plate 130; the second separation tank 310 is adjacent to the second side plate 140.

The transfer assembly includes a feed pipe 190, a feed pump 180, a discharge pipe 290, and a discharge pipe 380; the feeding pipe 190 is fixedly arranged through the first side plate 130; the first separation tank 210 includes a first top wall 211, a first side wall 212, and a first bottom wall 213; the first top wall 211 is provided with a first feeding hole 220 and a first through hole 230; the outlet end of the feed pipe 190 extends into the first feed port 220; the inlet end of the feed pipe 190 is communicated with the outlet end of the feed pump 180; the inlet end of feed tube 190 is connected to a source of raw material (i.e., crude eucalyptus oil obtained after distillation).

A first overflow port 214 is formed near the upper part of the first side wall 212; the second separation tank 310 includes a second top wall 311 and a second side wall 313; the second top wall 311 is provided with a second feeding hole 320; one end of the discharge pipe 290 is communicated with the first overflow port 214; the other end of the discharge pipe 290 extends into the second feed opening 320.

A second overflow port 314 is formed on the upper part of the second side wall 313; the discharge pipe 380 is fixedly arranged on the second side plate 140 in a penetrating way; one end of the discharge pipe 380 is communicated with the second overflow port 314; the other end of the discharge pipe 380 is communicated with the oil collecting tank 170; the oil sump 170 is provided outside the tank case 100.

The lifting assembly includes a lead screw 240, a nut 430, a lifting plate 250, a guide bar (not shown), and a first driving part; the screw 240 is vertically and rotatably connected to the inner surfaces of the top plate 110 and the first bottom wall 213 through a bearing; the screw rod 240 is movably arranged through the first through hole 230; the top end of the screw 240 protrudes out of the top plate 110.

The nut 430 is sleeved on the screw rod 240 in a matching manner; the lifting plate 250 is fixedly sleeved on the outer side wall of the nut 430; the lifting plate 250 is horizontally arranged; the lifting plate 250 is provided with a plurality of vertically arranged flow holes 260; the first driving part is used for driving the screw 240 to rotate. The lifting plate 250 is further opened with a vertical guide hole (not shown); the guide rod is vertically and fixedly arranged in the first separation tank 210, and the guide rod movably penetrates through the guide hole.

The specific working principle is as follows: when the oil-water separation device is used, crude eucalyptus oil is conveyed to the feeding pipe 190 through the feeding pump 180 firstly, and then enters the first separation tank 210, after the crude eucalyptus oil in the first separation tank 210 is filled to a certain height (higher than the first overflow port 214), the first driving part is started, so that the screw rod 240 is driven to rotate, under the action of the guide rod, the nut 430 and the lifting plate 250 are synchronously lifted, the crude eucalyptus oil in the first separation tank 210 is disturbed, the separation and stratification of the crude eucalyptus oil and water in the first separation tank 210 are accelerated (the specific gravity of the water is greater than that of the eucalyptus oil, so that the eucalyptus oil floats on the upper layer of the water), after the eucalyptus oil and the water stratification are stable, the eucalyptus oil flows out from the first overflow port 214 through the discharging pipe 290 and is discharged to the second separation tank 310 side by side, after the next oil-water separation of the eucalyptus oil in the second separation tank 310, the purified eucalyptus oil passes through the discharging pipe 380 and flows out from the second overflow port 314, and finally enters the oil collecting tank 170, and compared with the traditional standing separation oil-water separation device, the oil-water separation device provided by the invention has a better oil-water separation effect by arranging the lifting component.

In addition, a first solenoid valve 280 and a second solenoid valve 370 are included; the first electromagnetic valve 280 is disposed on the discharge pipe 290 for controlling the connection and closing of the discharge pipe 290; the second solenoid valve 370 is provided to the discharge pipe 380 to control communication and closing of the discharge pipe 380. By providing the first solenoid valve 280 and the second solenoid valve 370, it is more convenient to control the connection and the closing of the discharge pipe 290 and the discharge pipe 380, thereby controlling the transfer of the material.

Meanwhile, the screw 240 is turned to be coupled to the inner surface of the first bottom wall 213 through a bearing; the upper portion of the screw 240 is rotatably coupled to the top plate 110 through a bearing.

Further, the first driving part includes a first motor 440, a first gear 460, and a second gear 450; the first driving part is used for driving the screw 240 to rotate: the first gear 460 is coaxially and fixedly sleeved at the top end of the screw rod 240; the second gear 450 is coaxially fixed on the output shaft of the first motor 440; the first motor 440 is fixed to the upper surface of the top plate 110; the first gear 460 is engaged with the second gear 450.

Through above-mentioned technical scheme, perfect lifting unit's structure and first drive unit's structure.

Meanwhile, the oil-water separation device also comprises a stirring component; the stirring assembly comprises a stirring shaft 340, stirring blades 350 and a second driving part; the second separation tank 310 includes a second bottom wall 312; a second through hole 330 is formed in the center of the second top wall 311; the stirring shaft 340 is vertically and rotatably connected to the second bottom wall 312 and the top plate 110; the stirring blade 350 is connected to the stirring shaft 340; the stirring blade 350 is positioned in the second separation tank 310; the stirring shaft 340 movably penetrates through the second through hole 330; the second driving part is used for driving the stirring blade 350 to rotate.

Further, the stirring shaft 340 is turned to the inner surface connected to the second bottom wall 312 by a bearing; the upper portion of the stirring shaft 340 is rotatably connected to the top plate 110 through a bearing.

Meanwhile, the second driving part includes a coupling 480 and a second motor 470; the second motor 470 is fixedly connected right above the stirring shaft 340; the output shaft of the second motor 470 is vertically disposed; the stirring shaft 340 is coaxially connected to an output shaft of the second motor 470 through a shaft coupling 480.

Through above-mentioned technical scheme, stirring leaf 350 can stir the eucalyptus oil in the second knockout drum 310 to carry out oil-water separation with higher speed the eucalyptus oil in the second knockout drum 310, accelerate the process of whole eucalyptus oil purification.

In addition, the case housing 100 further includes a third side panel 150 connected to both the first side panel 130 and the second side panel 140; the third side plate 150 is provided with an observation window 490; a vertical first long groove 510 is formed in the first side wall 212 near the third side plate 150; the first long groove 510 is hermetically embedded with a transparent first partition 520.

The second separation tank 310 further comprises a second sidewall 313; a vertical second long groove 530 is formed in the second side wall 313 close to the third side plate 150; a transparent second partition 540 is embedded in the second long groove 530 in a sealing manner; the observation window 490 is used to observe the first and

second separators

520 and 540. The first partition plate 520 and the second partition plate 540 are observed through the observation window 490, so that the layering situation of the liquid in the first separation tank 210 and the second separation tank 310 is observed, whether the first electromagnetic valve 280 and the second electromagnetic valve 370 are opened or not is judged, the communication situation of the discharge pipe and the discharge pipe is controlled, and the structure of the oil-water separation device is perfected. The inner surfaces of the first and second top walls 211 and 311 are each provided with a lighting lamp (not shown) to facilitate observation of the liquid stratification inside the first and

second separation tanks

210 and 310.

Meanwhile, a dust cover 160 is also included; the dust cover 160 is disposed on the upper surface of the top plate 110; the dust cover 160 is used to cover the first and second drive components. The second motor 470 is fixedly coupled to the inner top of the dust cover 160.

In addition, the opening of the discharge pipe 380 communicated with one end of the oil collecting tank 170 faces vertically downwards; the oil collecting tank 170 is lower than the second overflow outlet 314; the oil collecting tank 170 is further provided with an air vent (not shown); the second separation tank 310 is below the first overflow outlet 214. The bottom of the first separation tank 210 is also communicated with a first water drainage pipe 270, the first water drainage pipe 270 penetrates through the first side plate 130, and the first water drainage pipe 270 is used for draining water at the bottom in the first separation tank 210; the bottom of the second separation tank 310 is also communicated with a second water drainage pipe 360, the second water drainage pipe 360 is arranged through the bottom plate 120, and the second water drainage pipe 360 is used for draining water at the bottom in the second separation tank 310; main support legs 420 are also attached to the lower surface of the base plate 120 for supporting the tank housing 100; the first support leg 410 is further connected to the bottom of the first separation tank 210, and the second support leg 390 is further connected to the bottom of the second separation tank 310.

Through above-mentioned technical scheme, further perfect this oil-water separator's structure.

Meanwhile, the oil-water separation device also comprises a control component; the control assembly includes a first moving rod 550, a first spring 560, a first blocking ring 570, a first link 580, a first button switch 590, a second moving rod 630, a second spring 650, a second blocking ring 640, a second link 610, a second button switch 620, and a bellows 660.

The first top wall 211 is provided with an upward moving hole 215; the first moving rod 550 is vertically movably inserted into the upper moving hole 215; the first baffle ring 570 is vertically fixedly sleeved on the first moving rod 550; the first baffle ring 570 is positioned above the first top wall 211; the first spring 560 is sleeved on the first moving rod 550; the first spring 560 is connected between the first stopper ring 570 and the first top wall 211; in a normal state, the first spring 560 is in a compressed state to balance the self weight of the first moving bar 550.

The first link frame 580 is connected to an upper surface of the first top wall 211; the first button switch 590 is disposed right above the first moving bar 550 through the first connection frame 580; the first moving bar 550 can be vertically moved to be in contact with the first button switch 590. In a normal state, a gap is maintained between the first moving lever 550 and the first push switch 590.

The first bottom wall 213 is provided with a downward moving hole 216; the second moving rod 630 is vertically and movably arranged through the downward moving hole 216; the second stop ring 640 is vertically fixed on the second moving bar 630; the second baffle ring 640 is located in the first separation tank 210; the first spring 560 is sleeved on the second moving rod 630; the first spring 560 is connected between the second retainer 640 and the first bottom wall 213; the top end of the bellows 660 is hermetically connected to the lower surface of the first bottom wall 213 and covers the downward moving hole 216; the bottom end of the bellows 660 is hermetically connected to the end of the second moving rod 630 protruding from the first bottom wall 213.

The second connecting frame 610 is connected to the lower surface of the first bottom wall 213; the second button switch 620 is disposed right below the second moving bar 630 through the second connection frame 610; the elastic force of the second spring 650 makes the second moving bar 630 higher than the second push switch 620 in the normal state; the second moving bar 630 can be moved into contact with the second button switch 620.

The first button switch 590 and the second button switch 620 are electrically connected to the first motor 440, so as to control the rotation direction of the first motor 440, that is, each time the first button switch 590 and the second button switch 620 are pressed, the rotation direction of the first motor 440 is controlled to change once.

The specific working principle is as follows: when the lifting plate 250 moves to be close to the first bottom wall 213, the lower surface of the lifting plate 250 contacts the second moving rod 630, so as to drive the second moving rod 630 to move downwards, so that the second moving rod 630 presses the second button switch 620, thereby controlling the rotation direction change of the first motor 440, thereby causing the rotation direction change of the screw rod 240, thereby causing the lifting plate 250 to ascend, so as to control the lowest position of the movement of the lifting plate 250, and preventing the lifting plate 250 from colliding with the first bottom wall 213.

When the lifting plate 250 moves to be close to the first top wall 211, the upper surface of the lifting plate 250 contacts the first moving rod 550, so as to drive the first moving rod 550 to move upwards, so that the first moving rod 550 presses the first button switch 590, thereby controlling the rotation direction of the first motor 440 to change again, thereby changing the rotation direction of the screw rod 240 again, so as to lower the lifting plate 250, so as to control the highest position of the movement of the lifting plate 250, and preventing the lifting plate 250 from colliding with the first top wall 211.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An oil-water separation device for extracting eucalyptus oil is characterized by comprising a box shell, a first separation tank, a second separation pipe, an oil collecting tank, a transfer component and a lifting component;

2. The oil-water separator for extracting eucalyptus oil as claimed in claim 1, further comprising a first solenoid valve and a second solenoid valve; the first electromagnetic valve is arranged on the discharge pipe and used for controlling the connection and the disconnection of the discharge pipe; the second electromagnetic valve is arranged on the discharge pipe and used for controlling the connection and the closing of the discharge pipe.

3. The oil-water separator for extracting eucalyptus oil as claimed in claim 1, wherein said screw is turned to the inner surface of the first bottom wall by a bearing; the upper part of the screw rod is rotatably connected to the top plate through a bearing.

4. The oil-water separator for extracting eucalyptus oil as claimed in claim 1, wherein said first driving means comprises a first motor, a first gear and a second gear; the first driving part is used for driving the screw rod to rotate, and the structure is as follows: the first gear is coaxially and fixedly sleeved at the top end of the screw rod; the second gear is coaxially and fixedly sleeved on the output shaft of the first motor; the first motor is fixed on the upper surface of the top plate; the first gear is engaged with the second gear.

5. The oil-water separator for extracting eucalyptus oil as claimed in claim 1, further comprising a stirring component; the stirring assembly comprises a stirring shaft, a stirring blade and a second driving part; the second separation tank comprises a second bottom wall; a second through hole is formed in the center of the second top wall; the stirring shaft is vertically and rotatably connected to the second bottom wall and the top plate; the stirring blade is connected with the stirring shaft; the stirring blade is positioned in the second separation tank; the stirring shaft movably penetrates through the second through hole; the second driving part is used for driving the stirring blade to rotate.

6. The oil-water separator for extracting eucalyptus oil as claimed in claim 5, wherein said second driving means comprises a coupling and a second motor; the second motor is fixedly connected right above the stirring shaft; an output shaft of the second motor is vertically arranged; the stirring shaft is coaxially connected to the output shaft of the second motor through the coupler.

7. The oil-water separator for extracting eucalyptus oil as claimed in claim 1, wherein said tank case further comprises a third side plate connected to said first side plate and said second side plate at the same time; the third side plate is provided with an observation window; a vertical first long groove is formed in the position, close to the third side plate, of the first side wall; and a transparent first partition plate is embedded in the first long groove in a sealing manner.

8. The oil-water separator for extracting eucalyptus oil as claimed in claim 7, wherein said second separating tank further comprises a second sidewall; a vertical second long groove is formed in the position, close to the third side plate, of the second side wall; a transparent second partition plate is embedded in the second long groove in a sealing manner; the observation window is used for observing the first partition plate and the second partition plate.

9. The oil-water separator for extracting eucalyptus oil as claimed in claim 5, further comprising a dust cover; the dust cover is arranged on the upper surface of the top plate; the dust cover is used for covering the first driving part and the second driving part.

10. The oil-water separation device for extracting eucalyptus oil as claimed in any one of claims 1 to 9, wherein an opening of the discharge pipe, which communicates with one end of the oil collecting tank, faces vertically downward; the oil collecting tank is lower than the second overflow port; the oil collecting tank is also provided with air holes; the second separation tank is lower than the first overflow port.