Coal tar processing wastewater recovery treatment device

Abstract

The invention belongs to the technical field of wastewater treatment equipment, and particularly relates to a coal tar processing wastewater recovery treatment device which comprises an oil separation tank, and a water inlet pipe and a water outlet pipe are arranged on the oil separation tank; a first partition plate and a second partition plate which are sequentially arranged from the water inlet pipe to the water outlet pipe are further arranged in the oil separation tank, a lower communication port is formed between the lower part of the first partition plate and the oil separation tank, and an upper communication port is formed in the upper part of the second partition plate; the upper end of the second partition plate is fixedly connected with an oil-water separation net which is obliquely arranged; one end, far away from the first partition plate, of the oil-water separation net is fixedly connected with the inner wall of the oil separation tank; an oil discharge mechanism capable of horizontally moving is arranged in the oil separation tank and is arranged above the first partition plate and the oil-water separation net; the problem that light oil in the oil separator is not easy to clean in the existing coal tar processing wastewater recovery treatment process is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a coal tar processing wastewater recovery and treatment device. Background Art

[0002] Coal tar is an organic mixture mainly composed of aromatic hydrocarbons, containing more than 10,000 compounds, of which about 500 can be extracted. Currently, about 50 are valuable and can be extracted. Further deep processing of coal tar can produce a series of products such as light oil, phenol, naphthalene, washing oil, anthracene, carbazole, indole, asphalt, etc.

[0003] During the coal tar processing and production process, the light oil and gas produced from the top of the dehydration tower and the top of the primary distillation tower pass through the condenser and enter the middle part of the oil-water separator for oil-water separation; in the oil-water separator, the upper light oil is collected, stored and sold, and the bottom wastewater is treated and discharged; because the wastewater contains some light oil that cannot be completely separated, oil deposits accumulate at the bottom of the grease trap, making wastewater treatment more difficult, which not only increases the treatment cost and energy consumption cost, but also causes great waste of products. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a coal tar processing wastewater recovery and treatment device, which effectively solves the problem that the light oil in the oil separator is difficult to clean during the existing coal tar processing wastewater recovery and treatment process.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a coal tar processing wastewater recovery and treatment device, including an oil separator, on which an inlet pipe and an outlet pipe are provided; the oil separator is also provided with a first partition plate and a second partition plate which are arranged in sequence from the inlet pipe to the outlet pipe, a lower connecting port is formed between the lower part of the first partition plate and the oil separator, and an upper connecting port is provided at the upper part of the second partition plate; an oil-water separation net which is inclined is fixedly connected to the upper end of the second partition plate, and an end of the oil-water separation net which is away from the first partition plate is fixedly connected to the inner wall of the oil separator; a horizontally movable oil discharge mechanism is provided in the oil separator, and the oil discharge mechanism is arranged above the first partition plate and the oil-water separation net.

[0006] Furthermore, the oil discharge mechanism includes a frame that can move horizontally along the oil separator, and a plurality of oil pumping devices are evenly distributed on the frame; the plurality of oil pumping devices each include a supporting cylinder fixedly connected to the frame, and an oil pumping pipe is passed through the supporting cylinder; a turntable is rotatably connected to the supporting cylinder, and the turntable is rotatably connected to an oil pushing plate corresponding to the oil pumping pipe; a horizontal plate that is rotatably connected to the oil pushing plate and remains horizontal as the oil pushing plate rotates along the turntable is rotatably connected to the oil pushing plate, and a plurality of vertically arranged spoiler plates are connected to the horizontal plate so as to swing back and forth, and the spoiler plates swing back and forth along the horizontal plate as the oil pushing plate rotates along the turntable.

[0007] Furthermore, a movable motor is fixedly connected to the oil separator, a lead screw is fixedly connected to the output end of the movable motor, and the frame is threadedly connected to the lead screw; a guide shaft is fixedly connected in the oil separator, and the frame is slidably connected to the guide shaft.

[0008] Furthermore, multiple support cylinders are rotatably connected with synchronous bevel gears, and multiple synchronous bevel gears are coaxially fixed; multiple synchronous bevel gears are meshed with switching bevel gears, and multiple switching bevel gears are coaxially fixed with driving wheels; multiple driving wheels are meshed with driven wheels, and multiple driven wheels are coaxially fixed with multiple turntables respectively.

[0009] Furthermore, multiple connecting bevel gears are rotatably connected in the support cylinders, and multiple connecting bevel gears are coaxially fixed; multiple connecting bevel gears are meshed with output bevel gears, and multiple output bevel gears are coaxially fixed with driving wheels, and a gear ring meshing with the driving wheel is rotatably connected in the support cylinder.

[0010] Furthermore, the turntable is rotatably connected to an output wheel meshing with a gear ring, the output wheel is coaxially fixed with a worm, the worm is connected to a spoiler structure that drives the spoiler to swing back and forth along the horizontal plate; the worm is meshed with a worm wheel, and the worm wheel is connected to a crank-connecting rod structure that drives the oil push plate to rotate back and forth along the turntable.

[0011] Furthermore, the crank-connecting rod structure includes a first crank coaxially fixed to the worm gear, a first connecting rod rotatably connected to the first crank, and the first connecting rod is rotatably connected to the middle part of the oil pushing plate.

[0012] Furthermore, a parallel rod arranged parallel to the oil pushing plate is rotatably connected to the turntable, and the other end of the parallel rod is rotatably connected to the middle part of the horizontal plate.

[0013] Furthermore, the spoiler structure includes a universal coupling connected to the worm gear, the output end of the universal coupling is connected to a second crank rotatably connected to the horizontal plate, and the second crank is rotatably connected to a second connecting rod; multiple spoiler plates are coaxially fixed with a rotating rod, and the connecting rod is rotatably connected to one of the rotating rods; a synchronous rod is rotatably connected to the rotating rod, and multiple rotating rods are rotatably connected to the synchronous rod.

[0014] Furthermore, a driving motor is fixedly connected to the oil separator, and a driving spline shaft is fixedly connected to the output end of the driving motor; a driving spline cylinder is slidably connected to the driving spline shaft, the driving spline cylinder is rotatably connected to one of the supporting cylinders, and a driving bevel gear meshing with one of the output bevel gears is fixedly connected to the driving spline cylinder.

[0015] Furthermore, a switching motor is fixedly connected to the oil trap, and a switching spline shaft is fixedly connected to the output end of the switching motor; a switching spline cylinder is slidably connected to the switching spline shaft, and the switching spline cylinder is rotatably connected to one of the supporting cylinders. A driving bevel gear meshing with one of the switching bevel gears is fixedly connected to the switching spline cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, the oil layer is discharged, collected, stored and sold through the oil discharge mechanism to reduce the content of light oil in the grease trap, which can effectively alleviate the accumulation of deposited oil at the bottom of the grease trap and reduce the difficulty of subsequent equipment in treating wastewater.

[0017] 2. When the present invention is in use, the oil pushing plate swings back and forth, thereby driving the oil layer to move in the direction of the movement of the random frame, so as to prevent the oil layer from flowing in the opposite direction to the frame under the action of gravity and affecting the oil pumping of the oil pumping pipe; that is, the oil pushing plate makes the oil layer move in the direction of the movement of the random frame and the oil pumping pipe, so as to improve the oil pumping efficiency of the oil pumping pipe; in addition, the spoiler plate swings back and forth along the horizontal plate, which can effectively eliminate the foam at the oil-water boundary, promote oil-water stratification, and improve the efficiency of oil-water separation of wastewater in the oil separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the oil discharge mechanism in the present invention; Figure 4 It is a first axonometric view of the internal structure of the oil discharge device in the present invention; Figure 5 A second isometric view of the internal structure of the oil discharge device of the present invention; Figure 6 It is a schematic diagram of the matching state of the synchronous bevel gear, the switching bevel gear, the driving wheel, the driven wheel, the rotating disk and other structures in the present invention; Figure 7 It is a schematic diagram of the matching state of the output bevel gear, the driving wheel, the gear ring, the worm, the worm wheel and other structures in the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the middle A area; Fig. 9 It is a structural schematic diagram of the spoiler structure in the present invention; Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the middle B area; In the figure: 1, grease trap, 2, water inlet pipe, 3, drive motor, 4, mobile motor, 5, switching motor, 6, switching spline shaft, 7, lead screw, 8, oil-water separation net, 9, guide shaft, 10, driving spline shaft, 11, first partition plate, 12, second partition plate, 13, upper connecting port, 14, water outlet pipe, 15, oil discharge mechanism, 16, oil pumping main pipe, 17, oil pumping connecting pipe, 18, oil pumping pipe, 19, support cylinder, 20, oil push plate, 21, horizontal plate, 22, frame, 23 , driving bevel gear, 24, output bevel gear, 25, connecting bevel gear, 26, synchronous bevel gear, 27, switching bevel gear, 28, driving wheel, 29, ring gear, 30, spoiler, 31, output wheel, 32, turntable, 33, parallel rod, 34, synchronous rod, 35, rotating rod, 36, universal coupling, 37, first connecting rod, 38, first crank, 39, driving wheel, 40, driven wheel, 41, worm, 42, worm wheel, 43, second crank, 44, second connecting rod. DETAILED DESCRIPTION

[0019] A coal tar processing wastewater recovery and treatment device, such as Figure 1-10 As shown, it includes a grease trap 1, on which is provided an inlet pipe 2 and an outlet pipe 14; the grease trap 1 is also provided with a first partition plate 11 and a second partition plate 12 which are arranged in sequence from the inlet pipe 2 to the outlet pipe 14, a lower connecting port is formed between the lower part of the first partition plate 11 and the grease trap 1, and an upper connecting port 13 is provided on the upper part of the second partition plate 12; an oil-water separation net 8 which is arranged obliquely is fixedly connected to the upper end of the second partition plate 12, and an end of the oil-water separation net 8 which is away from the first partition plate 11 is fixedly connected to the inner wall of the grease trap 1; a horizontally movable oil discharge mechanism 15 is provided in the grease trap 1, and the oil discharge mechanism 15 is arranged above the first partition plate 11 and the oil-water separation net 8.

[0020] When the grease trap 1 is in use, the waste water separated by the oil-water separator enters the grease trap 1 through the water inlet pipe 2; Figure 2 As shown, by setting the first partition plate 11, the second partition plate 12, the upper connecting port 13, the lower connecting port, the oil-water separation net 8, etc., the wastewater, under the action of the first partition plate 11, flows through the lower connecting port between the first partition plate 11 and the second partition plate 12, and flows through the upper connecting port 13 into the area composed of the second partition plate 12, the oil separator 1, and the oil-water separation net 8; during the flow of the wastewater, the light oil is separated from the water and flows upward to form a layer, and the light oil in the area composed of the second partition plate 12, the oil separator 1, and the oil-water separation net 8 flows upward through the oil-water separation net 8, and the oil layer is discharged, collected, stored, and sold through the oil discharge mechanism 15, so as to reduce the content of light oil in the oil separator 1, which can effectively alleviate the accumulation of deposited oil at the bottom of the oil separator 1 and reduce the difficulty of subsequent equipment in treating wastewater.

[0021] Furthermore, if Figure 3-7As shown, the oil discharge mechanism 15 includes a frame 22 that can move horizontally along the oil separator 1, and a plurality of oil pumping devices are evenly distributed on the frame 22; the plurality of oil pumping devices each include a support tube 19 fixedly connected to the frame 22, and an oil pumping pipe 18 is passed through the support tube 19; an oil pump is provided on the oil separator 1, and one end of the oil pump is connected to an empty oil tank; the other end of the oil pump is connected to an oil pumping main pipe 16, and the oil pumping main pipe 16 is connected to an oil pumping connecting pipe 17, and the plurality of oil pumping pipes 18 are connected to the oil pumping main pipe 16. 8 are connected to the oil pumping connecting pipe 17; the support cylinder 19 is rotatably connected to a turntable 32, and the turntable 32 is rotatably connected to an oil pushing plate 20 corresponding to the oil pumping pipe 18; the oil pushing plate 20 is rotatably connected to a horizontal plate 21 that continuously remains horizontal as the oil pushing plate 20 rotates along the turntable 32, and the horizontal plate 21 is reciprocatingly connected to a plurality of vertically arranged spoiler plates 30, which reciprocate along the horizontal plate 21 as the oil pushing plate 20 rotates along the turntable 32.

[0022] When the oil pumping mechanism is in use, the frame 22 drives the oil pumping device to move horizontally along the oil separator 1, so that the oil pump can fully extract the oil layer in the oil separator 1 through the oil pumping main pipe 16, the oil pumping connecting pipe 17 and the oil pumping pipe 18, and the extracted light oil flows into the empty oil tank for storage; at the same time, in the process of pumping oil with the movement of the random frame 22, the oil pumping pipe 18 makes the oil push plate 20 swing back and forth along the turntable 32, so as to drive the oil layer to move in the direction of the movement of the random frame 22, so as to avoid the oil layer flowing in the opposite direction to the frame 22 under the action of gravity, which affects the oil pumping of the oil pumping pipe 18; the oil layer is moved in the direction of the movement of the random frame 22 and the oil pumping pipe 18 by the oil push plate 20, so as to improve the oil pumping efficiency of the oil pumping pipe 18; In addition, during the reciprocating swinging process of the oil pushing plate 20, the horizontal plate 21 is driven to move horizontally, and the horizontal plate 21 drives the spoiler plate 30 to move synchronously. The spoiler plate 30 moves back and forth along the horizontal plate 21 as the oil pushing plate 20 moves. The spoiler plate 30 can effectively eliminate the foam at the oil-water boundary, promote oil-water stratification, and improve the efficiency of oil-water separation in the oil separator 1; in addition, when the frame 22 moves to one end of the oil separator 1, the turntable 32 is rotated 180 degrees, and the turntable 32 can drive the oil pushing plate 20, the horizontal plate 21, the spoiler plate 30 and other structures to rotate to the other side of the oil extraction pipe 18, so that during the reciprocating motion of the frame 22, the oil pushing plate 20 can continuously push the oil layer to improve the oil extraction efficiency of this application.

[0023] Furthermore, if Figure 1 As shown, a movable motor 4 is fixedly connected to the oil-water separator 1, a lead screw 7 is fixedly connected to the output end of the movable motor 4, and a frame 22 is screwed to the lead screw 7; a guide shaft 9 is fixedly connected to the oil-water separator 1, and the frame 22 is slidably connected to the guide shaft 9; the movable motor 4 cooperates with the lead screw 7 to drive the frame 22 to slide along the guide shaft 9, thereby realizing the reciprocating motion of the frame 22, so that the oil extraction pipe 18 can extract oil layers at various locations of the oil-water separator 1.

[0024] Furthermore, if Figure 1 and Figure 6 As shown, multiple support cylinders 19 are rotatably connected with synchronous bevel gears 26, and multiple synchronous bevel gears 26 are coaxially fixed; multiple synchronous bevel gears 26 are meshed with switching bevel gears 27, and multiple switching bevel gears 27 are coaxially fixed with driving wheels 39; multiple driving wheels 39 are meshed with driven wheels 40, and multiple driven wheels 40 are coaxially fixed with multiple turntables 32 respectively.

[0025] The oil trap 1 is fixedly connected with a switching motor 5, and the output end of the switching motor 5 is fixedly connected with a switching spline shaft 6; the switching spline shaft 6 is slidably connected with a switching spline cylinder, and the switching spline cylinder is rotatably connected with one of the supporting cylinders 19. The switching spline cylinder is fixedly connected with a driving bevel gear meshing with one of the switching bevel gears 27.

[0026] When the turntable 32 needs to rotate, the switching motor 5 is started, the switching motor 5 drives the switching spline shaft 6 to rotate, and the switching spline shaft 6 drives the active bevel gear to rotate through the switching spline cylinder; the active bevel gear drives one of the switching bevel gears 27 to rotate; since multiple switching bevel gears 27 are coaxially connected through the synchronous bevel gear 26, multiple switching bevel gears 27 rotate synchronously; the synchronous bevel gear 26 drives the driving wheel 39 to rotate, and the driving wheel 39 drives the turntable 32 to rotate 180 degrees through the driven wheel 40, thereby realizing the switching rotation of the turntable 32, and rotating the oil push plate 20 to the other side of the oil extraction pipe 18.

[0027] Furthermore, if Figure 1 and Figure 4 As shown, a driving motor 3 is fixedly connected to the oil separator 1, and a driving spline shaft 10 is fixedly connected to the output end of the driving motor 3; a driving spline cylinder is slidably connected to the driving spline shaft 10, and the driving spline cylinder is rotationally connected to one of the supporting cylinders 19, and a driving bevel gear 23 meshing with one of the output bevel gears 24 is fixedly connected to the driving spline cylinder.

[0028] Furthermore, if Figure 7 and Figure 8 As shown, a plurality of the support cylinders 19 are rotatably connected with connecting bevel gears 25, and the plurality of connecting bevel gears 25 are coaxially fixed; a plurality of the connecting bevel gears 25 are meshed with output bevel gears 24, and a plurality of the output bevel gears 24 are coaxially fixed with a driving wheel 28, and a gear ring 29 meshing with the driving wheel 28 is rotatably connected in the support cylinder 19; The driving motor 3 drives the driving bevel gear 23 to rotate through the driving spline shaft 10 and the driving spline cylinder, and the driving bevel gear 23 drives the output bevel gear 24 to rotate; through the setting of the connecting bevel gear 25, multiple output bevel gears 24 rotate synchronously; the output bevel gear 24 drives the ring gear 29 to rotate through the driving wheel 28.

[0029] Furthermore, the turntable 32 is rotatably connected to an output wheel 31 meshing with the ring gear 29, the output wheel 31 is coaxially fixed with a worm 41, and the worm 41 is connected to a spoiler structure that drives the spoiler 30 to swing back and forth along the horizontal plate 21; the worm 41 is meshed with a worm wheel 42, and the worm wheel 42 is connected to a crank-connecting rod structure that drives the oil push plate 20 to rotate back and forth along the turntable 32; when the ring gear 29 rotates, it can drive the output wheel 31 to rotate, and the output wheel 31 drives the spoiler structure to move through the worm 41; at the same time, the worm 41 drives the worm wheel 42 to rotate, and the worm wheel 42 drives the oil push plate 20 to rotate back and forth along the turntable 32 through the crank-connecting rod structure.

[0030] Furthermore, the crank-connecting rod structure includes a first crank 38 coaxially fixed to the worm gear 42, and a first connecting rod 37 is rotatably connected to the first crank 38, and the first connecting rod 37 is rotatably connected to the middle part of the oil push plate 20; when the worm gear 42 rotates, it can drive the first crank 38 to rotate, and the first crank 38 drives the oil push plate 20 to swing back and forth along the turntable 32 through the first connecting rod 37.

[0031] Furthermore, a parallel rod 33 arranged parallel to the oil pushing plate 20 is rotatably connected to the turntable 32, and the other end of the parallel rod 33 is rotatably connected to the middle of the horizontal plate 21; the parallel rod 33, the horizontal plate 21, and the oil pushing plate 20 form a parallelogram structure, so that the horizontal plate 21 is always in a horizontal state to maintain the stability of the spoiler 30.

[0032] Furthermore, if Fig. 9 and Fig.10 As shown, the spoiler structure includes a universal coupling 36 connected to the worm 41, the output end of the universal coupling 36 is connected to a second crank 43 rotatably connected to the horizontal plate 21, and the second crank 43 is rotatably connected to a second connecting rod 44; the plurality of spoilers 30 are coaxially fixed with a rotating rod 35, and the connecting rod is rotatably connected to one of the rotating rods 35; the rotating rod 35 is rotatably connected to a synchronization rod 34, and the plurality of rotating rods 35 are rotatably connected to the synchronization rod 34.

[0033] When the spoiler structure is in use, the worm 41 drives the second crank 43 to rotate through the universal coupling 36, the second crank 43 drives the rotating rod 35 to swing back and forth through the second connecting rod 44, the rotating rod 35 drives the other multiple rotating rods 35 to swing back and forth synchronously through the synchronization rod 34, and then drives the multiple spoilers 30 to swing synchronously.

[0034] The working process of the present invention is: When the present invention is in use, the moving motor 4 and the driving motor 3 are started, and the moving motor 4 cooperates with the lead screw 7 to drive the frame 22 to slide along the guide shaft 9; the frame 22 drives the support tube 19 to move horizontally along the oil separator 1, and then the oil pump is used to fully extract the oil layer in the oil separator 1 through the oil extraction main pipe 16, the oil extraction connecting pipe 17, and the oil extraction pipe 18, and the extracted light oil flows into the empty oil tank for storage.

[0035] At the same time, when the pumping pipe 18 is pumping oil with the movement of the random frame 22, the driving motor 3 drives the driving bevel gear 23 to rotate by driving the spline shaft 10 and the driving spline cylinder, and the driving bevel gear 23 drives the output bevel gear 24 to rotate; through the setting of the connecting bevel gear 25, multiple output bevel gears 24 rotate synchronously; the output bevel gear 24 drives the ring gear 29 to rotate through the driving wheel 28, the ring gear 29 drives the output wheel 31 to rotate, the output wheel 31 drives the worm 41 to rotate, and the worm 41 drives the worm wheel 42 to rotate.

[0036] The worm gear 42 drives the first crank 38 to rotate, and the first crank 38 drives the oil push plate 20 to swing back and forth along the turntable 32 through the first connecting rod 37, thereby driving the oil layer to move in the direction of the movement of the random frame 22 to prevent the oil layer from flowing in the opposite direction to the frame 22 under the action of gravity, thereby affecting the oil extraction of the pumping pipe 18; that is, the oil push plate 20 makes the oil layer move in the direction of the movement of the random frame 22 and the pumping pipe 18 to improve the oil extraction efficiency of the pumping pipe 18.

[0037] In addition, during the reciprocating swing of the oil push plate 20, the worm 41 drives the second crank 43 to rotate through the universal coupling 36, and the second crank 43 drives the rotating rod 35 to swing back and forth through the second connecting rod 44. The rotating rod 35 drives the remaining multiple rotating rods 35 to swing back and forth synchronously through the synchronization rod 34, thereby driving the multiple spoilers 30 to swing synchronously, which can effectively eliminate the foam at the oil-water boundary, promote oil-water stratification, and improve the efficiency of wastewater oil-water separation in the oil separator 1.

Claims

1. A coal tar processing wastewater recovery and treatment device, characterized in that: The invention comprises a grease trap (1), wherein the grease trap (1) is provided with a water inlet pipe (2) and a water outlet pipe (14); the grease trap (1) is further provided with a first partition plate (11) and a second partition plate (12) which are arranged in sequence from the water inlet pipe (2) to the water outlet pipe (14); a lower connecting opening is formed between the lower part of the first partition plate (11) and the grease trap (1), and an upper connecting opening (13) is arranged at the upper part of the second partition plate (12); an oil-water separation net (8) which is arranged obliquely is fixedly connected to the upper end of the second partition plate (12), and an end of the oil-water separation net (8) which is away from the first partition plate (11) is fixedly connected to the inner wall of the grease trap (1); a horizontally movable oil discharge mechanism (15) is provided in the grease trap (1), and the oil discharge mechanism (15) is arranged above the first partition plate (11) and the oil-water separation net (8); The oil discharge mechanism (15) comprises a frame (22) which can move horizontally along the oil separator (1), and a plurality of oil pumping devices are evenly distributed on the frame (22); the plurality of oil pumping devices each comprises a support cylinder (19) fixedly connected to the frame (22), and an oil pumping pipe (18) is passed through the support cylinder (19); a turntable (32) is rotatably connected to the support cylinder (19), and the turntable (32) is rotatably connected to an oil push plate (20) corresponding to the oil pumping pipe (18); a horizontal plate (21) which is rotatably connected to the oil push plate (20) and which is kept horizontal as the oil push plate (20) rotates along the turntable (32) is rotatably connected to the oil push plate (20), and a plurality of vertically arranged spoilers (30) are reciprocatingly connected to the horizontal plate (21), and the spoilers (30) reciprocate along the horizontal plate (21) as the oil push plate (20) rotates along the turntable (32).

2. The coal tar processing wastewater recovery and treatment device according to claim 1, characterized in that: A movable motor (4) is fixedly connected to the oil trap (1), a lead screw (7) is fixedly connected to the output end of the movable motor (4), and the frame (22) is screwed to the lead screw (7); a guide shaft (9) is fixedly connected to the inside of the oil trap (1), and the frame (22) is slidably connected to the guide shaft (9).

3. The coal tar processing wastewater recovery and treatment device according to claim 1, characterized in that: A plurality of the support cylinders (19) are rotatably connected with synchronous bevel gears (26), and the plurality of the synchronous bevel gears (26) are coaxially fixedly connected; a plurality of the synchronous bevel gears (26) are meshed with switching bevel gears (27), and the plurality of the switching bevel gears (27) are coaxially fixedly connected with driving wheels (39); a plurality of the driving wheels (39) are meshed with driven wheels (40), and the plurality of the driven wheels (40) are coaxially fixedly connected to the plurality of the rotating disks (32), respectively.

4. The coal tar processing wastewater recovery and treatment device according to claim 1, characterized in that: A plurality of the support tubes (19) are rotatably connected to connecting bevel gears (25), and the plurality of the connecting bevel gears (25) are coaxially fixedly connected; an output bevel gear (24) is meshed with the plurality of the connecting bevel gears (25), and the plurality of the output bevel gears (24) are coaxially fixedly connected to a driving wheel (28), and a gear ring (29) meshing with the driving wheel (28) is rotatably connected to the support tube (19).

5. The coal tar processing wastewater recovery and treatment device according to claim 4, characterized in that: The rotating disk (32) is rotatably connected to an output wheel (31) meshing with a gear ring (29); the output wheel (31) is coaxially fixedly connected to a worm (41); the worm (41) is connected to a spoiler structure that drives a spoiler plate (30) to swing back and forth along a horizontal plate (21); the worm (41) is meshed with a worm wheel (42); the worm wheel (42) is connected to a crank connecting rod structure that drives an oil push plate (20) to rotate back and forth along the rotating disk (32).

6. The coal tar processing wastewater recovery and treatment device according to claim 5, characterized in that: The crank-connecting rod structure comprises a first crank (38) coaxially fixed to the worm gear (42), a first connecting rod (37) rotatably connected to the first crank (38), and the first connecting rod (37) is rotatably connected to the middle part of the oil pushing plate (20).

7. The coal tar processing wastewater recovery and treatment device according to claim 6, characterized in that: A parallel rod (33) arranged parallel to the oil pushing plate (20) is rotatably connected to the rotating disk (32), and the other end of the parallel rod (33) is rotatably connected to the middle of the horizontal plate (21).

8. The coal tar processing wastewater recovery and treatment device according to any one of claims 5 or 7, characterized in that: The spoiler structure comprises a universal coupling (36) connected to the worm (41); the output end of the universal coupling (36) is connected to a second crank (43) rotatably connected to the horizontal plate (21); the second crank (43) is rotatably connected to a second connecting rod (44); the plurality of spoiler plates (30) are coaxially fixedly connected to a rotating rod (35); the connecting rod is rotatably connected to one of the rotating rods (35); the rotating rod (35) is rotatably connected to a synchronous rod (34); the plurality of rotating rods (35) are rotatably connected to the synchronous rod (34).

9. The coal tar processing wastewater recovery and treatment device according to claim 4, characterized in that: A drive motor (3) is fixedly connected to the oil separator (1), and a drive spline shaft (10) is fixedly connected to the output end of the drive motor (3); a drive spline cylinder is slidably connected to the drive spline shaft (10), the drive spline cylinder is rotationally connected to one of the support cylinders (19), and a drive bevel gear (23) meshing with one of the output bevel gears (24) is fixedly connected to the drive spline cylinder.

10. The coal tar processing wastewater recovery and treatment device according to claim 3, characterized in that: A switching motor (5) is fixedly connected to the oil separator (1), and a switching spline shaft (6) is fixedly connected to the output end of the switching motor (5); a switching spline cylinder is slidably connected to the switching spline shaft (6), the switching spline cylinder is rotationally connected to one of the support cylinders (19), and a driving bevel gear meshing with one of the switching bevel gears (27) is fixedly connected to the switching spline cylinder.

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