Biofuel processing equipment

Abstract

The present invention relates to the technical field of biofuel processing, and discloses a biofuel processing device, including a processing box, and also including: an oil separation tank, fixedly connected to one side of the processing box, for receiving the oil phase and water phase diverted from the processing box; a colander, arranged inside the processing box, for separating the oil phase, water phase and residue; a telescopic mechanism, arranged inside the colander, for moving up and down to promote the discharge of residue; a movable mechanism, arranged below the colander, for deflecting the colander left and right; a crushing mechanism, arranged inside the colander. The present invention uses a telescopic mechanism to rotate the continuously rotating spiral blades in the feed cone barrel, so that the residue entering the feed cone barrel can be rotated and compressed, so that the oil phase and water phase in the residue can be squeezed out, so as to achieve better separation, avoid the difficulty of separating the oil phase in the residue from the residue, so as to improve the separation efficiency and the oil phase acquisition rate.

Description

Technical Field

[0001] The invention relates to the technical field of biofuel processing, in particular to a biofuel processing device. Background Art

[0002] Biofuel, also known as biomass fuel, refers to liquid or gaseous fuels produced from biomass (including organic matter such as plants and animals), such as bioethanol, biodiesel, sustainable aviation fuel (SAF) and biomethane. It is renewable and is therefore a good substitute for fossil fuels such as oil. The carbon dioxide emitted when biofuel is burned is considered to be carbon neutral, that is, the amount of carbon it emits is equal to the amount of carbon absorbed during plant growth.

[0003] For example, publication number CN214936223U discloses a heating tank for primary processing of waste cooking oil and water separation, which includes a heating tank body, a sealing plate fixedly connected to the heating tank body and used to separate the heating tank body into a separation tank and an oil storage tank, the side wall of the separation tank is connected to a feed pipe for waste oil to enter, a sliding groove is provided on the lower surface of the sealing plate, a connecting groove connected to the sliding groove is provided on the lower surface of the heating tank body, and a plurality of connecting holes are provided in the sealing plate in the horizontal direction for the oil phase in the separation tank to flow to the oil storage tank, the connecting holes are connected to the sliding groove, a sliding rod is slidably provided in the connecting groove, the sliding rod extends into the connecting groove and slides in the sliding groove and is used to open or close the connecting hole. The present application has the effect of fully separating the oil phase and the water phase;

[0004] However, when separating waste oil, the above device does not take into account the residue in the waste oil, and only separates the water phase from the oil phase. A large amount of oil phase will be attached to the residue, and the separation efficiency is poor and the oil phase acquisition rate is low. Therefore, a biofuel processing equipment is proposed to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a biofuel processing device in view of the above-mentioned deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a biofuel processing device, including a processing box, and also including:

[0007] An oil separation tank, fixedly connected to one side of the processing tank, for receiving the oil phase and water phase separated from the processing tank;

[0008] A filter, arranged inside the processing box, for separating the oil phase, the water phase and the residue;

[0009] A telescopic mechanism is arranged inside the sieve and is used for moving up and down to facilitate the discharge of residues;

[0010] A movable mechanism is arranged below the leakage net and is used for deflecting the leakage net to the left and right;

[0011] A crushing mechanism, arranged inside the sieve, for pushing and crushing the residue;

[0012] Wherein, the telescopic mechanism comprises:

[0013] A movable plate, arranged above the processing box;

[0014] A feeding cone barrel is movably connected in the movable plate to move up and down;

[0015] A mounting ring, fixedly connected to the top of the movable plate;

[0016] A plurality of telescopic cylinders are respectively fixedly connected to the bottom of the mounting ring, and the telescopic ends of the telescopic cylinders are connected to the top of the movable plate, so as to pull the mounting ring and the feed cone barrel downward.

[0017] Preferably, the telescopic mechanism further comprises:

[0018] A mounting plate, fixedly connected to the inner wall of the feed cone barrel;

[0019] A rotating rod, rotatably connected to the bottom of the mounting plate through a bearing;

[0020] A motor is fixedly mounted on the top of the mounting plate, and an output end of the motor is connected to the top of the rotating rod to drive the rotating rod to rotate;

[0021] A plurality of spiral blades are respectively spirally mounted on the outer wall of the rotating rod and are used for spirally conveying the residue downward;

[0022] The bottom of the feeding cone barrel is conical, and when the spiral rotates downward, the residue space is compressed to squeeze the oil phase and the water phase in the residue.

[0023] Preferably, the bottom of the rotating rod is fixedly connected with two symmetrically connected angle push rods;

[0024] The bottom of the inner wall of the leakage net is fixedly connected with a quadrangular pyramid block and is provided with the same through holes as the leakage net;

[0025] The top of the quadrangular pyramid block is fixedly connected with a cylindrical rod, and the outer wall of the cylindrical rod is fixedly connected with a wavy ring. The bottom of the angled push rod is spherically arranged and abuts against the top of the wavy ring.

[0026] Preferably, the crushing mechanism comprises:

[0027] A push plate, fixedly connected to the outer wall of the feed cone barrel, used for pushing the residue downward;

[0028] A plurality of push rods are fixedly connected to the bottom of the push plate, and the bottom of the push rods movably penetrates the tetrahedral pyramid block and the leakage net and extends downward;

[0029] Two connecting plates are fixedly connected to the inner sides of the front and rear push rods;

[0030] A plurality of rotating shafts are rotatably connected to the connecting plate and the push rods at the front and rear sides, and are consistent with the inclination angle of the quadrangular pyramid block, and the two ends of the rotating shafts respectively penetrate the connecting plate and the push rod and extend to the front and rear sides;

[0031] A plurality of gears are respectively fixedly connected to the outer wall of the extended end of the rotating shaft;

[0032] A plurality of racks are respectively fixedly connected to the inner wall of the leakage screen and meshed with the gears;

[0033] A plurality of crushing blades are respectively fixedly connected to the outer wall of the rotating shaft.

[0034] Preferably, the activity mechanism comprises:

[0035] Two fixing plates fixedly connected to the inner wall of the processing box;

[0036] Two movable grooves are respectively arranged on the top of the processing box;

[0037] A plurality of fixed blocks are respectively fixedly connected to the bottom of the movable plate in groups of two and move on the inner wall of the movable groove.

[0038] Preferably, the top of the fixed plate is arranged in an arc shape, the bottom of the push rod is arranged in an arc shape, and the arc of the push rod fits with the arc of the fixed plate, and when the push rod moves downward, the push rod is pushed to move to the right;

[0039] A plurality of elastic telescopic rods are respectively fixedly connected to the inner wall of the processing box, and the output end is fixedly connected to the outer wall of the leakage net, so as to reset the leakage net to the left side.

[0040] Preferably, a plurality of corrugated plates are fixedly connected to the inner wall of the processing box and are located below the two fixed plates to guide the separation of the water phase and the oil phase.

[0041] Preferably, a partition is fixedly connected to the inner wall of the oil separation tank to separate the oil phase and the water phase;

[0042] An oil outlet hole and a water outlet hole are provided on the right side of the processing box, and the oil outlet hole and the water outlet hole are respectively located above and below the corrugated plate;

[0043] Two conduits are respectively installed on the outer wall of the oil separation tank and are respectively located above and below the partition plate, and are used for leading out the oil phase and the water phase.

[0044] The present invention adopts the above technical solution to bring the following beneficial effects:

[0045] 1. The biofuel processing equipment, through the telescopic mechanism, uses the continuously rotating spiral blades to rotate in the feed cone barrel, so that the residue entering the feed cone barrel can be rotated and compressed, so that the oil phase and the water phase in the residue can be squeezed out, and better separation is achieved, avoiding the difficulty of separating the oil phase from the residue, so as to improve the separation efficiency and the oil phase acquisition rate.

[0046] 2. The biofuel processing equipment, through the telescopic mechanism, utilizes the feeding cone barrel that is continuously moved up and down to shake the residue, so as to promote the residue to move downward in the feeding cone barrel, so as to promote the feeding and avoid the residue from clogging the feeding cone barrel.

[0047] 3. The biofuel processing equipment can push the residue downward by means of a crushing mechanism and a push plate that moves up and down with the feed cone, thereby preventing the residue from accumulating on the top of the tetrahedral pyramid block 31 and affecting separation. At the same time, the residue can be rotated and crushed by the rotation of multiple crushing blades to promote the separation of the oil phase and the residue.

[0048] 4. The biofuel processing equipment can promote the downward discharge of the residue in the feeding cone barrel by swinging the screen and the entire feeding cone barrel left and right through the movable mechanism, and at the same time, the oil phase and the water phase contained in the residue in the screen are continuously swung left and right to swing the oil phase and the water phase out of the screen and drop them into the processing box for oil phase and water phase separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the structure of the present invention;

[0050] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0051] Figure 3 It is a schematic diagram of the explosion structure of the movable mechanism of the present invention;

[0052] Figure 4 This is a schematic diagram of the exploded structure of the telescopic mechanism of the present invention;

[0053] Figure 5 This is a schematic diagram of the crushing mechanism structure of the present invention;

[0054] Figure 6 It is a schematic diagram of the telescopic mechanism structure of the present invention;

[0055] Figure 7 For the present invention Figure 6 Enlarged structural diagram at A in the middle.

[0056] In the figure: 1. processing box; 2. oil distribution box; 21. oil outlet; 22. water outlet; 23. partition; 3. filter; 31. four-sided pyramid block; 4. telescopic mechanism; 41. feed cone barrel; 42. mounting ring; 43. telescopic cylinder; 44. mounting plate; 45. rotating rod; 46. motor; 47. spiral blade; 48. angle push rod; 49. cylindrical rod; 491. wavy ring; 492. movable plate; 5. movable mechanism; 51. corrugated plate; 52. fixed plate; 53. movable groove; 54. fixed block; 55. elastic telescopic rod; 6. crushing mechanism; 61. push plate; 62. push rod; 63. connecting plate; 64. rotating shaft; 65. gear; 66. rack; 67. crushing blade. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] See also Figure 1-7 One embodiment of the present invention is: a biofuel processing device, including a processing box 1, and also including:

[0059] The oil separation tank 2 is fixedly connected to one side of the processing tank 1 and is used to receive the oil phase and water phase separated from the processing tank 1;

[0060] The filter 3 is arranged inside the processing box 1 and is used to separate the oil phase, the water phase and the residue;

[0061] The telescopic mechanism 4 is arranged inside the leakage screen 3 and is used for moving up and down to facilitate the discharge of residues;

[0062] The movable mechanism 5 is arranged below the leakage net 3 and is used for deflecting the leakage net 3 to the left and right;

[0063] A crushing mechanism 6 is arranged inside the sieve 3 and is used to push and crush the residue;

[0064] Wherein, the telescopic mechanism 4 comprises:

[0065] A movable plate 492 is arranged above the processing box 1;

[0066] The feed cone barrel 41 is movably connected in the movable plate 492 to move up and down;

[0067] A mounting ring 42, fixedly connected to the top of the movable plate 492;

[0068] A plurality of telescopic cylinders 43 are respectively fixedly connected to the bottom of the mounting ring 42, and the telescopic ends of the telescopic cylinders 43 are connected to the top of the movable plate 492 for pulling the mounting ring 42 and the feed cone barrel 41 downward.

[0069] The telescopic mechanism 4 also includes:

[0070] A mounting plate 44 is fixedly connected to the inner wall of the feed cone barrel 41;

[0071] The rotating rod 45 is rotatably connected to the bottom of the mounting plate 44 through a bearing;

[0072] The motor 46 is fixedly mounted on the top of the mounting plate 44, and the output end of the motor 46 is connected to the top of the rotating rod 45 to drive the rotating rod 45 to rotate;

[0073] A plurality of spiral blades 47 are respectively spirally mounted on the outer wall of the rotating rod 45 for spirally conveying the residue downward;

[0074] The bottom of the feed cone barrel 41 is conical, and when it rotates downward in a spiral, it compresses the residue space and squeezes out the oil phase and water phase in the residue.

[0075] The bottom of the rotating rod 45 is fixedly connected with two symmetrically connected angle push rods 48;

[0076] A quadrangular pyramid block 31 is fixedly connected to the bottom of the inner wall of the leakage net 3, and is provided with the same through hole as the leakage net 3;

[0077] A cylindrical rod 49 is fixedly connected to the top of the quadrangular pyramid block 31 , and a wavy ring 491 is fixedly connected to the outer wall of the cylindrical rod 49 . The bottom of the angle push rod 48 is spherically arranged and abuts against the top of the wavy ring 491 .

[0078] Working principle: In order to better obtain the oil phase in the residue, first put the residue containing the oil phase directly into the feed cone barrel 41, then start the motor 46, and then drive the rotating rod 45 to rotate by the motor 46, and then drive the spiral blade 47 to rotate. At this time, when the rotating spiral blade 47 rotates, the residue entering the feed cone barrel 41 will be rotated and compressed, and the residue will be transported to the filter 3 at the same time. At this time, through rotation and compression, the oil phase and water phase in the residue can be squeezed out to achieve better separation and improve separation efficiency;

[0079] At the same time, when the rotating rod 45 rotates, it will drive the two angle push rods 48 to rotate, and through the circular rotation of the angle push rods 48, it will contact the wavy ring 491. By constantly contacting the wavy ring 491 and cooperating with the telescopic cylinder 43, when the angle push rod 48 contacts the wavy ring 491 and moves toward the crest, it will push the feed cone barrel 41 to move upward. When the angle push rod 48 contacts the wavy ring 491 and moves to the trough, the water will push the feed cone barrel 41 to move downward. At this time, the feed cone barrel 41 is constantly moved up and down to shake the residue, so as to promote the residue to move downward in the feed cone barrel 41 to promote material discharge.

[0080] See also Figure 1-7 Based on the above embodiment, in another embodiment of the present invention, the crushing mechanism 6 includes:

[0081] A push plate 61 is fixedly connected to the outer wall of the feed cone barrel 41 and is used to push the residue downward;

[0082] A plurality of push rods 62 are fixedly connected to the bottom of the push plate 61, and the bottom of the push rods 62 movably penetrates the quadrangular pyramid block 31 and the leakage net 3 and extends downward;

[0083] Two connecting plates 63 are fixedly connected to the inner sides of the front and rear push rods 62;

[0084] A plurality of rotating shafts 64 are rotatably connected to the connecting plate 63 and the push rods 62 at the front and rear sides, and are consistent with the inclination angle of the quadrangular pyramid block 31, and the two ends of the rotating shaft 64 respectively penetrate the connecting plate 63 and the push rod 62 and extend to the front and rear sides;

[0085] A plurality of gears 65 are respectively fixedly connected to the outer wall of the extended end of the rotating shaft 64;

[0086] A plurality of racks 66 are respectively fixedly connected to the inner wall of the drain screen 3 and meshed with the gear 65;

[0087] A plurality of crushing blades 67 are respectively fixedly connected to the outer wall of the rotating shaft 64 .

[0088] Working principle: When the residue discharged from the feed cone barrel 41 is separated from the feed cone barrel 41, it falls above the crushing mechanism 6. At this time, when the feed cone barrel 41 moves downward, it will push the residue downward to prevent the residue from accumulating above the four-sided pyramid block 31 and affecting separation;

[0089] At the same time, when the push plate 61 moves downward, it will synchronously push the push rod 62 to move, which will drive the connecting plate 63 and the rotating shaft 64 to move downward. At the same time, when moving, the gear 65 will contact the rack 66 to generate kinetic energy to drive the gear 65 to rotate, thereby driving the rotating shaft 64 to rotate, thereby driving the multiple crushing blades 67 to rotate, thereby realizing rotational crushing of the residue to promote the separation of the oil phase and the residue.

[0090] See also Figure 1-7 Based on the above embodiment, in another embodiment of the present invention, the movable mechanism 5 includes:

[0091] Two fixing plates 52 are fixedly connected to the inner wall of the processing box 1;

[0092] Two movable grooves 53 are respectively provided on the top of the processing box 1;

[0093] A plurality of fixed blocks 54 are fixedly connected to the bottom of the movable plate 492 in groups of two, and move on the inner wall of the movable groove 53 .

[0094] The top of the fixed plate 52 is set in an arc shape, and the bottom of the push rod 62 is set in an arc shape, and the arc of the push rod 62 is in contact with the arc of the fixed plate 52. When the push rod 62 moves downward, it pushes the push rod 62 to move to the right;

[0095] A plurality of elastic telescopic rods 55 are respectively fixedly connected to the inner wall of the processing box 1, and the output end is fixedly connected to the outer wall of the leakage net 3, so as to reset the leakage net 3 to the left side.

[0096] A plurality of corrugated plates 51 are fixedly connected to the inner wall of the processing box 1 and are located below the two fixed plates 52 for guiding the separation of the water phase and the oil phase.

[0097] A partition plate 23 is fixedly connected to the inner wall of the oil separation tank 2 to separate the oil phase and the water phase;

[0098] An oil outlet hole 21 and a water outlet hole 22 are provided on the right side of the processing box 1, and the oil outlet hole 21 and the water outlet hole 22 are respectively located above and below the corrugated plate 51;

[0099] Two conduits are respectively installed on the outer wall of the oil separation tank 2 and are respectively located above and below the partition 23 for conducting the oil phase and the water phase.

[0100] Working principle: when the push rod 62 moves up and down, the push rod 62 moves downward, and at this time, the push rod 62 arranged in an interlaced manner squeezes the fixed plate 52, generating a resistance, thereby pushing the push rod 62 to move to the right, thereby synchronously driving the entire sieve 3 and the movable plate 192 to move left and right, and move in the movable groove 53 through the fixed block 54, and when the push rod 62 moves upward, the push rod 62 is no longer subjected to force, and at this time, under the action of the elastic telescopic rod 55, the sieve 3 is pushed to the left, so that the sieve 3 and the entire feed cone barrel 41 can be continuously swung left and right to promote the residue in the feed cone barrel 41 to be discharged downward, and at the same time, the oil phase and the water phase contained in the residue in the sieve 3 are continuously swung left and right to swing the oil phase and the water phase out of the sieve 3, so that they fall into the processing box 1 for oil-water phase separation;

[0101] At the same time, when the oil phase and water fall into the processing box 1 at the same time, the density of oil and water is different, and oil is usually lighter than water. Therefore, in a static state, the oil will naturally float up. The design of the corrugated plate can take advantage of this characteristic, and achieve effective separation of oil and water by guiding the water flow and oil flow. The corrugated plate can increase the contact area between oil and water, promote the coalescence and floating of oil droplets, and thus improve the separation efficiency;

[0102] The oil phase will then float to the top of the corrugated plate and be discharged from the oil outlet 21 into the oil separator 23 through overflow, and be located above the partition 23. At the same time, the water phase will sink to the bottom and be discharged into the oil separator 23 through the water outlet 22, and be located below the partition 23 for discharge.

[0103] The present invention provides a biofuel processing device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A biofuel processing device, comprising a processing box (1), characterized in that: Also includes: An oil separation tank (2) is fixedly connected to one side of the processing tank (1) and is used to receive the oil phase and water phase separated from the processing tank (1); A filter (3) is arranged inside the processing box (1) and is used to separate the oil phase, the water phase and the residue; A telescopic mechanism (4) is arranged inside the sieve (3) and is used for moving up and down to facilitate the discharge of residues; A movable mechanism (5) is arranged below the leakage net (3) and is used to deflect the leakage net (3) to the left and right; A crushing mechanism (6) is arranged inside the sieve (3) and is used to push and crush the residue; Wherein, the telescopic mechanism (4) comprises: A movable plate (492) is arranged above the processing box (1); A feeding cone barrel (41) is movably connected in the movable plate (492) to move up and down; A mounting ring (42) fixedly connected to the top of the movable plate (492); A plurality of telescopic cylinders (43) are respectively fixedly connected to the bottom of the mounting ring (42), and the telescopic ends of the telescopic cylinders (43) are connected to the top of the movable plate (492) for pulling the mounting ring (42) and the feed cone barrel (41) downward.

2. A biofuel processing equipment according to claim 1, characterized in that: The telescopic mechanism (4) further comprises: A mounting plate (44) fixedly connected to the inner wall of the feed cone barrel (41); A rotating rod (45) is rotatably connected to the bottom of the mounting plate (44) via a bearing; A motor (46) is fixedly mounted on the top of the mounting plate (44), and an output end of the motor (46) is connected to the top of the rotating rod (45) to drive the rotating rod (45) to rotate; A plurality of spiral blades (47) are respectively spirally mounted on the outer wall of the rotating rod (45) and are used for spirally conveying the residue downward; The bottom of the feed cone barrel (41) is arranged in a cone shape, and when the cone rotates downward, the residue space is compressed to squeeze the oil phase and the water phase in the residue.

3. A biofuel processing equipment according to claim 2, characterized in that: The bottom of the rotating rod (45) is fixedly connected to two symmetrically connected angle push rods (48); A quadrangular pyramid block (31) is fixedly connected to the bottom of the inner wall of the leakage net (3) and is provided with the same through holes as the leakage net (3); The top of the quadrangular pyramid block (31) is fixedly connected to a cylindrical rod (49), and the outer wall of the cylindrical rod (49) is fixedly connected to a wavy ring (491), and the bottom of the angled push rod (48) is spherically arranged and abuts against the top of the wavy ring (491).

4. A biofuel processing equipment according to claim 3, characterized in that: The crushing mechanism (6) comprises: A push plate (61) is fixedly connected to the outer wall of the feed cone barrel (41) and is used to push the residue downward; A plurality of push rods (62) are fixedly connected to the bottom of the push plate (61), and the bottoms of the push rods (62) movably penetrate the quadrangular pyramid block (31) and the leakage net (3) and extend downward; Two connecting plates (63) are fixedly connected to the inner sides of the front and rear push rods (62); A plurality of rotating shafts (64) are rotatably connected to the connecting plate (63) and the push rods (62) at the front and rear sides, and are consistent with the inclination angle of the quadrangular pyramid block (31). The two ends of the rotating shafts (64) respectively penetrate the connecting plate (63) and the push rods (62) and extend to the front and rear sides. A plurality of gears (65) are respectively fixedly connected to the outer wall of the extended end of the rotating shaft (64); A plurality of racks (66) are respectively fixedly connected to the inner wall of the leakage screen (3) and meshed with the gear (65); A plurality of crushing blades (67) are respectively fixedly connected to the outer wall of the rotating shaft (64).

5. The biofuel processing equipment according to claim 4, characterized in that: The activity mechanism (5) comprises: Two fixing plates (52) fixedly connected to the inner wall of the processing box (1); Two movable grooves (53) are respectively provided on the top of the processing box (1); A plurality of fixed blocks (54) are fixedly connected to the bottom of the movable plate (492) in groups of two and are movable on the inner wall of the movable groove (53).

6. A biofuel processing equipment according to claim 5, characterized in that: The top of the fixed plate (52) is arranged in an arc shape, the bottom of the push rod (62) is arranged in an arc shape, and the arc of the push rod (62) is in contact with the arc of the fixed plate (52), so that when the push rod (62) moves downward, it pushes the push rod (62) to move to the right side; A plurality of elastic telescopic rods (55) are respectively fixedly connected to the inner wall of the processing box (1), and the output ends are fixedly connected to the outer wall of the leakage net (3), so as to reset the leakage net (3) to the left side.

7. The biofuel processing equipment according to claim 6, characterized in that: A plurality of corrugated plates (51) are fixedly connected to the inner wall of the processing box (1) and are located below the two fixed plates (52) for guiding the separation of the water phase and the oil phase.

8. The biofuel processing equipment according to claim 7, characterized in that: The inner wall of the oil separation tank (2) is fixedly connected with a partition plate (23) for separating the oil phase and the water phase; An oil outlet hole (21) and a water outlet hole (22) are provided on the right side of the processing box (1), and the oil outlet hole (21) and the water outlet hole (22) are respectively located above and below the corrugated plate (51); Two conduits are respectively installed on the outer wall of the oil separation tank (2) and are respectively located above and below the partition (23) for conducting the oil phase and the water phase.

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