Mixed hydrocarbon rectification separation sewage treatment equipment

Abstract

The invention relates to the technical field of sewage treatment equipment, and discloses mixed hydrocarbon rectification separation sewage treatment equipment which comprises a shell, a separation tank and a collection tank, a plurality of chain wheels are rotationally arranged on one side of the top of the separation tank, and a chain is in transmission connection between every two corresponding chain wheels; and a transmission shaft is fixedly connected between the two corresponding chain wheels in a sleeving mode, a mounting plate is arranged at the top of the separation tank, and a scraping plate is arranged at the bottom of the mounting plate. The scraping plate rotates to be matched with the movable weir plate, so that the scraping plate is attached to the movable weir plate in the rotating process, the movable roller is in contact with the first cam, the scraping plate drives the movable weir plate to vibrate while keeping the attaching scraping action, pollutants are rapidly pushed out under the condition that the follow-up scraping plate is prevented from entering water at the too high speed, and the pollution to the environment is avoided. The reflux quantity of pollutants along the movable weir plate under the action of gravity is reduced, and the sewage treatment efficiency and effect of the sewage treatment equipment are improved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment equipment technology, and in particular to a mixed hydrocarbon distillation and separation wastewater treatment equipment. Background Technology

[0002] In petrochemical production, processes such as mixed-hydrocarbon distillation generate wastewater rich in hydrocarbons and their derivatives. Characteristic pollutants include free oil, emulsified oil, and suspended grease, which typically require efficient removal using dissolved air flotation (DAF) wastewater treatment equipment. Existing DAF wastewater treatment equipment consists of a mixing tank, a DAF tank, a separation tank, a collection tank, and a clear water tank arranged sequentially. During operation, the wastewater first undergoes reagent addition and mixing in the mixing tank, then enters the DAF tank. In the DAF tank, a large number of microbubbles released by the dissolved air mechanism adhere to the pollutants, causing them to float to the surface and accumulate to form a scum layer. A drive mechanism moves scrapers slowly from the separation tank to the collection tank, where the scrapers, in conjunction with weir plates, scrape the scum into the collection tank. The separated wastewater then flows through pipes into the clear water tank.

[0003] During operation, the scraper of the air flotation wastewater treatment equipment makes a circular motion at the inclined flat weir plate to ensure that the contact position between the scraper end and the scum has a greater linear velocity than the horizontal movement. Therefore, after the scraper contacts the bottom of the weir plate during rotation, it quickly detaches from the weir plate surface. The scum moves along the weir plate surface and enters the collection tank by the remaining kinetic energy. However, some scum remains on the weir plate surface and slides back into the separation tank under the action of gravity, affecting the overall wastewater treatment efficiency and increasing the possibility of scum flowing into the clear water tank.

[0004] Existing weir plates are usually fixed to the wall of the collection tank in a detachable manner with bolts. If an arc-shaped weir plate that matches the rotation radius of the scraper is used to ensure that the scraper and the weir plate surface are in contact during the rotation of the scraper, then a weir plate with the corresponding curvature needs to be replaced when adjusting the height of the weir plate. Moreover, it is not convenient to determine the distance between the weir plate and the rotation center of the scraper, which reduces the adaptability of the sewage treatment equipment.

[0005] If a telescopic scraper is used, for example, if a spring telescopic component is added to the inner side of the scraper that tends to extend away from the center of rotation, the outer rotation radius of the scraper component composed of the scraper and the telescopic plate will be relatively increased. This will ensure the relative speed between the scraper and the weir plate when the telescopic component retracts, resulting in a larger linear velocity when the scraper re-enters the water. This will cause the telescopic component to hit the water body, which will easily cause the scum in the area to re-sediment.

[0006] If a guide sprocket is added to make the scraper move parallel to the weir plate in the weir plate area, the scraper's moving speed will decrease relative to the circular motion, and the time the scraper spends passing through the weir plate area will increase. This will easily cause some of the scraped sludge to fall back along the gaps in the inner wall of the scraper separation tank under the action of gravity, resulting in relatively low sewage treatment efficiency. Summary of the Invention

[0007] This application proposes a mixed hydrocarbon distillation separation wastewater treatment device, which has the advantages of adaptively adjusting the posture of the weir plate according to the rotation state of the scraper and ensuring the contact speed between the scraper and the weir plate. This solves the problem that when the scum is carried by the scraper through the weir plate, some of the scum remains on the weir plate and falls back, resulting in a decrease in wastewater treatment efficiency.

[0008] To achieve the above objectives, this application adopts the following technical solution: a mixed hydrocarbon distillation separation wastewater treatment device, comprising a shell, a separation tank and a collection tank, wherein a plurality of sprockets are rotatably arranged on the top of the separation tank, a chain is driven between two sprockets located on the same plane in the radial direction, a drive shaft is fixedly sleeved between two sprockets with collinear axes, an installation plate is provided on the top of the separation tank, a scraper is provided on the bottom of the installation plate, a weir plate mechanism is provided on the side of the top of the separation tank near the collection tank, and an adjustment mechanism is also included;

[0009] The adjustment mechanism is used to adjust the posture of the weir plate mechanism according to the position of the scraper relative to the weir plate mechanism during the circular motion of the scraper.

[0010] The weir plate mechanism includes a fixed weir plate and a movable weir plate. A fixed plate is fixedly connected to one side of the top of the separation tank by bolts. A connecting seat is fixedly connected to one side of the bottom of the fixed plate. The connecting seat is fixedly connected to the fixed weir plate. The adjustment mechanism includes a connecting plate. The movable weir plate is hinged to the connecting plate.

[0011] Furthermore, it also includes a mixing tank, an air flotation tank, and a clear water tank. A dissolved air mechanism is provided on the side of the shell away from the collection tank, and the mounting plate is fixedly connected to the chain link of the corresponding chain.

[0012] Furthermore, the mounting plate is slidably sleeved with two top rods, the bottom of the mounting plate is provided with an adjustment seat, the adjustment seat is fixedly connected to the scraper, a protrusion is fixedly sleeved at the bottom position of the top rod, a movable plate is provided at the top of the mounting plate, the movable plate is fixedly connected to the top rod, a second spring is movably sleeved on the outer side of the top of the top rod, a moving roller is rotatably provided at the top of the movable plate near the midpoint, and a fixed seat is fixedly provided at the top of the housing.

[0013] Furthermore, the movable weir plate is hinged to the fixed weir plate, and the adjustment mechanism also includes a lifting plate. The lifting plate is slidably disposed on the side of the fixed plate near the collection pool. A support base is fixedly connected to one side of the bottom of the fixed plate. A No. 1 spring is fixedly connected to the top of the support base. One end of the No. 1 spring is fixedly connected to the lifting plate. The lifting plate is hinged to the connecting plate.

[0014] Furthermore, the adjusting seat is fixedly connected to the top rod, and a cam is fixedly connected at the midpoint of the fixed seat. One side of the outer wall of the cam is wavy, and the cam is movably sleeved on the outside of the transmission shaft, so that the distance from one side of the outer wall of the cam to the axis of the transmission shaft changes back and forth.

[0015] Furthermore, the connecting plate is fixedly connected to the fixed plate, and the adjustment mechanism also includes an adjustment rod, which is fixedly connected to the movable weir plate. A limit block is fixedly connected to one side of the top of the connecting seat, and a tension spring is fixedly connected to the side of the top of the connecting seat away from the fixed plate. One end of the tension spring is fixedly connected to the movable weir plate. The adjustment seat is fixedly connected to the mounting plate, and the top rod is movably sleeved with the adjustment seat. A second cam is fixedly connected to one side of the fixed seat.

[0016] Furthermore, the second cam is movably sleeved on the outside of the drive shaft. The distance from the arc-shaped outer wall of one side of the second cam to the axis of the drive shaft is greater than the distance from the horizontal plane of the moving roller to the axis of the drive shaft. The second cam can drive the moving roller to move, and the distance of movement is large enough to cause the adjusting rod to drive the movable weir plate to flip and tilt towards the collection pool.

[0017] Furthermore, the bottom surface of the top rod is at a higher height than the bottom surface of the scraper, and the outer wall surface of one side of the second cam is wavy.

[0018] The beneficial effects of this invention are as follows:

[0019] This application provides a mixed hydrocarbon distillation separation wastewater treatment device. During the rotation of the scraper, it presses against and pushes the movable weir plate, keeping it in contact with the weir plate while rotating around one end. This ensures that the linear velocity of the scraper at its bottom remains constant while pushing the scum from the top surface of the movable weir plate into the collection tank. This guarantees that the speed of the scraper entering the water is within the rated range, and quickly pushes out pollutants, improving wastewater treatment efficiency and reducing the backflow of pollutants along the movable weir plate under gravity.

[0020] This application provides a mixed hydrocarbon distillation separation wastewater treatment device. By contacting a moving roller with a first cam and adjusting the distance between the moving roller and the drive shaft axis, the scraper is driven to move radially. This causes the scraper to drive the movable weir plate to vibrate while maintaining a close scraping action, thereby making it easier to scrape off scum and reducing the amount of scum adhering to the scraper, improving the scum removal effect and wastewater treatment efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic cross-sectional view of the overall structure of this application;

[0024] Figure 3 This is a schematic cross-sectional view of the structure at the lifting plate of this application;

[0025] Figure 4 This is a schematic diagram of the weir plate mechanism in Embodiment 1 of this application;

[0026] Figure 5 This is a schematic diagram of the top rod structure in Embodiment 2 of this application;

[0027] Figure 6 This is a schematic diagram of the weir plate mechanism in Embodiment 2 of this application.

[0028] In the diagram: 1. Shell; 2. Mixing tank; 3. Flotation tank; 4. Separation tank; 5. Collection tank; 6. Clear water tank; 7. Sprocket; 8. Drive shaft; 9. Weir plate mechanism; 901. Fixed weir plate; 902. Movable weir plate; 10. Dissolving air mechanism; 11. Connecting plate; 12. Lifting plate; 13. Fixed plate; 14. Support seat; 15. Spring No. 1; 16. Connecting seat; 17. Mounting plate; 18. Top rod; 19. Spring No. 2; 20. Adjusting seat; 21. Scraper; 22. Fixed seat; 23. Cam No. 1; 24. Moving roller; 25. Limiting block; 26. Tension spring; 27. Movable plate; 28. Cam No. 2; 29. ​​Adjusting rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1, as Figures 1-4A mixed hydrocarbon distillation separation wastewater treatment device includes a shell 1, a mixing tank 2, an air flotation tank 3, a separation tank 4, a collection tank 5, and a clear water tank 6. The mixing tank 2, air flotation tank 3, separation tank 4, collection tank 5, and clear water tank 6 are arranged sequentially inside the shell 1. A dissolved air mechanism 10 is provided on one side of the shell 1. Several sprockets 7 are rotatably arranged on one side of the top of the separation tank 4. The sprockets 7 are paired with each other. A drive shaft 8 is fixedly sleeved between two sprockets 7 located on the front and back of the separation tank 4. A chain is driven between two sprockets 7 located on both sides of the top of the separation tank 4. When a single sprocket 7 rotates, it drives several sprockets 7 to rotate synchronously in conjunction with the drive shaft 8 and the chain. The sprockets 7 are driven to rotate by a drive mechanism.

[0031] The drive mechanism can be configured as a motor and a reduction gear assembly. The reduction gear assembly includes two drive wheels connected by a transmission belt. The two drive wheels are coaxially connected to the corresponding sprocket 7 and the motor output shaft. The rotation of the motor drives the corresponding drive wheel to rotate, which in turn drives the sprocket 7 to rotate in conjunction with the transmission belt and the drive wheel. A mounting plate 17 is provided on the top of the separation tank 4. The mounting plate 17 is driven by a chain. Specifically, the front and back of the mounting plate 17 are fixedly connected to the chain links of the corresponding chains. The chain rotates cyclically, driving the mounting plate 17 to rotate cyclically. (See reference...) Figure 3 A scraper 21 is provided at the bottom of the mounting plate 17. The mounting plate 17 drives the scraper 21 to move. A weir plate mechanism 9 is provided on one side of the top of the separation tank 4.

[0032] During operation, the wastewater first undergoes the addition and mixing reaction of reagents in the mixing tank 2, and then enters the flotation tank 3. In the flotation tank 3, a large number of microbubbles released by the dissolved air mechanism 10 attach to the pollutants, causing them to float to the water surface and accumulate to form a scum layer. The drive mechanism drives the sprocket 7 to rotate, and the sprocket 7 drives the chain to rotate in a cycle, thereby driving the scraper 21 to move slowly from the separation tank 4 to the collection tank 5. The scraper 21, together with the weir plate mechanism 9, scrapes the scum into the collection tank, and the separated wastewater enters the clear water tank through the corresponding pipe.

[0033] Specifically, the weir plate mechanism 9 includes a fixed weir plate 901 and a movable weir plate 902. A fixed plate 13 is fixedly connected to one side of the top of the separation tank 4 by bolts. The fixed plate 13 can be removed from the separation tank 4 and installed at different heights through the reserved bolt holes. A connecting seat 16 is fixedly connected to one side of the bottom of the fixed plate 13. The connecting seat 16 is fixedly connected to the fixed weir plate 901. The movable weir plate 902 is hinged to the fixed weir plate 901. A lifting plate 12 is slidably connected to one side of the top of the fixed plate 13. The lifting plate 12 can slide vertically relative to the fixed plate 13 without detaching from the fixed plate 13. A support seat 14 is fixedly connected to one side of the bottom of the fixed plate 13. A first spring 15 is fixedly connected to the top of the support seat 14. One end of the first spring 15 is fixedly connected to the lifting plate 12. The first spring 15 is used to push the lifting plate 12 to rise. A connecting plate 11 is provided on one side of the top of the fixed plate 13. The movable weir plate 902 and the lifting plate 12 are both hinged to the connecting plate 11.

[0034] During operation, the chain drives the mounting plate 17 to move, and the mounting plate 17 drives the transmission to move the scraper 21. The bottom of the scraper 21 extends into the sewage surface to a rated depth. When the scraper 21 moves to the area corresponding to the sprocket 7, the chain drive drives the scraper 21 to make a circular motion around the axis of the transmission shaft 8. During this process, the bottom end of the scraper 21 abuts against and drives the movable weir plate 902 to rotate around the hinge point with the fixed weir plate 901. The top of the movable weir plate 902 moves down, thereby driving the connecting plate 11 to move. The transmission drives the lifting plate 12 to descend. At this time, the first spring 15 is in a compressed state and provides a clamping force between the movable weir plate 902 and the scraper 21. During the rotation, the scraper 21 always maintains contact with the surface of the movable weir plate 902, which can push the scum on the movable weir plate 902 into the collection tank 5, reduce the amount of scum remaining on the movable weir plate 902, thereby improving the overall sewage treatment efficiency and reducing the possibility of scum backflow causing some pollutants to settle again.

[0035] The movable weir plate 902 adjusts its posture according to the rotation of the scraper 21 to maintain a close fit, ensuring that the rotation radius and the depth of the scraper 21 into the liquid surface remain unchanged. The scraper 21 makes a circular motion with the radius unchanged, ensuring the contact rate between the bottom position of the scraper 21 and the movable weir plate 902, so that the scum is pushed into the collection tank 5 more quickly, reducing the residence time of the scum on the movable weir plate 902, thereby reducing the backflow of scum under the action of gravity, improving the overall sewage treatment efficiency, and ensuring the reliability of the sewage treatment equipment.

[0036] Mounting plate 17 is slidably sleeved with top rod 18, see reference. Figure 4The number of push rods 18 is set to two, and the two push rods 18 are respectively located on both sides of the mounting plate 17. The bottom of the mounting plate 17 is provided with an adjusting seat 20, which is fixedly connected to the push rod 18 and the scraper 21. A protrusion is fixedly sleeved on the bottom of the push rod 18. The protrusion is located at the bottom of the mounting plate 17. The top of the mounting plate 17 is provided with a movable plate 27, which is fixedly connected to the push rod 18. A second spring 19 is movably sleeved on the outer side of the top of the push rod 18. Spring 19 is located between movable plate 27 and mounting plate 17. Movable roller 24 is rotatably installed at the top of movable plate 27 near the midpoint. Fixed seat 22 is fixedly installed on the top of housing 1. A first cam 23 is fixedly connected at the midpoint of fixed seat 22. The first cam 23 is movably sleeved on the outside of drive shaft 8. Drive shaft 8 can rotate relative to the first cam 23. One side of the outer wall of the first cam 23 is wavy, that is, the distance from one side of the outer wall of the first cam 23 to the axis of drive shaft 8 changes back and forth.

[0037] During operation, the chain drives the mounting plate 17 to move, which in turn drives the top rod 18 to move. The second spring 19 pushes the movable plate 27, causing it to move away from the mounting plate 17. The mounting plate 17 then drives the top rod 18 closer to the horizontal level of the drive shaft 8. The top rod 18 drives the adjusting seat 20 to move, thereby moving the scraper 21. While scraping the scum layer, the scraper 21 remains in a contracted state and extends to the rated depth into the sewage surface to prevent excessive speed when it rotates to the side near the flotation tank 3 and enters the sewage. When the scraper 21 moves to the side near the collection tank 5 and corresponds to the position of the sprocket 7, it moves... The roller surface of the moving roller 24 abuts against the arc surface of the first cam 23. The wavy arc surface of the first cam 23 pushes the moving roller 24 to move away from the transmission shaft 8. The moving roller 24 drives the movable plate 27 to approach the mounting plate 17. Thus, during the rotation of the scraper 21, the scraper 21 is driven to move back and forth in the radial direction relative to the movable weir plate 902. This maintains the fit while driving the scraper 21 and the movable weir plate 902 to move back and forth simultaneously to form vibration. It also increases the average rotation radius of the scraper 21, which is beneficial for the scum to detach from the surface of the scraper 21 and the movable weir plate 902 and to adhere to the plate surface, thereby improving the cleaning effect of the scum.

[0038] Example 2, as Figure 1 , Figure 2 , Figure 5 and Figure 6Unlike the lifting plate 12, spring 15, support seat 14, cam 23, weir plate mechanism 9, connecting plate 11, adjusting seat 20, and top rod 18 in Embodiment 1, the number of top rods 18 is still set to two and located on both sides of the mounting plate 17. The connecting plate 11 is fixedly connected to the fixed plate 13. A limit block 25 is fixedly connected to one side of the top of the connecting seat 16. A tension spring 26 is fixedly connected to one side of the top of the connecting seat 16. One end of the tension spring 26 is fixedly connected to the movable weir plate 902. The movable weir plate 902 can rotate around the hinge point with the connecting plate 11. The fixed weir plate 901 and the movable weir plate 902 can be in an open state. The tension spring 26 drives one end of the movable weir plate 902 to abut against the top surface of the limit block 25. At this time, the top surfaces of the movable weir plate 902 and the fixed weir plate 901 form an inclined plane.

[0039] An adjusting rod 29 is fixedly connected to one side of the movable weir plate 902. (See reference) Figure 6 The number of adjusting rods 29 is set to two, and the positions of the two adjusting rods 29 correspond to the positions of the two push rods 18, respectively. See reference. Figure 5 The adjusting seat 20 is fixedly connected to the mounting plate 17. The push rod 18 is movably sleeved with the adjusting seat 20, and the bottom surface of the push rod 18 is at a higher height than the bottom surface of the scraper 21. This prevents the push rod 18 from extending into the sewage during the scraping process of the scraper 21, which could cause scum to adhere to the push rod 18. A second cam 28 is fixedly connected to one side of the fixed seat 22. The second cam 28 is movably sleeved on the outside of the drive shaft 8, allowing the drive shaft 8 to rotate relative to the second cam 28. The distance from the arc-shaped outer wall of one side of the second cam 28 to the axis of the drive shaft 8 is greater than the height of the moving roller 24. The distance from the horizontal plane to the axis of the drive shaft 8 is such that during the rotation of the scraper 21, the second cam 28 can drive the moving roller 24 to move away from the axis of the drive shaft 8, and the distance of movement is such that the adjusting rod 29 can drive the movable weir plate 902 to flip and tilt towards the collection tank 5. The outer wall of one side of the second cam 28 is wavy. The adjusting rod 29 can also be set as an arc rod. The adjusting rod 29 is set to be inclined relative to the movable weir plate 902 to reduce the distance between the adjusting rod 29 and the axis of the drive shaft 8 and improve the sensitivity of adjustment.

[0040] As scraper 21 moves to the side near collection tank 5 and rotates around the corresponding drive shaft 8 axis, the bottom rotation radius of scraper 21 remains unchanged. Scraper 21 scrapes the scum to the top surface of movable weir plate 902 and quickly detaches it, causing most of the scum to enter the collection tank from the top surface of movable weir plate 902 under the push. After scraper 21 detaches from contact with movable weir plate 902, moving roller 24 rotates to the arc-shaped outer wall of second cam 28. Second cam 28 abuts against moving roller 24 and pushes moving roller 24 away from the axis of drive shaft 8. Moving roller 24 drives top rod 18 to move closer to adjusting rod 29.

[0041] When the push rod 18 rotates to the radial position corresponding to the position of the adjusting rod 29, the second cam 28 drives the push rod 18 to extend from the bottom of the scraper 21 and abut against the adjusting rod 29. The scraper 21 continues to rotate, and the second cam 28 drives the push rod 18 to extend further, causing the push rod 18 to push the adjusting rod 29 to rotate around the hinge point between the movable weir plate 902 and the connecting plate 11. The adjusting rod 29 drives the movable weir plate 902 to rotate to the side of the collection tank 5. At this time, the moving roller 24 drives the movable weir plate 902 to vibrate through the wavy outer wall surface of the second cam 28. When the movable weir plate 902 is tilted to the side of the collection tank 5, the scum is vibrated away, avoiding the backflow of residual scum, improving the overall sewage treatment efficiency, and reducing the wear of the scraper 21, thus extending the service life of the equipment.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mixed hydrocarbon distillation separation wastewater treatment device, comprising a shell (1), a separation tank (4), and a collection tank (5), wherein a plurality of sprockets (7) are rotatably arranged on the top of the separation tank (4), and a chain is driven between two sprockets (7) located on the same plane in the radial direction, and a drive shaft (8) is fixedly sleeved between two sprockets (7) with collinear axes, characterized in that, The top of the separation tank (4) is provided with an installation plate (17), the bottom of the installation plate (17) is provided with a scraper (21), the top of the separation tank (4) is provided with a weir plate mechanism (9) on the side near the collection tank (5), and also includes an adjustment mechanism. The adjustment mechanism is used to adjust the posture of the weir plate mechanism (9) according to the position of the scraper (21) relative to the weir plate mechanism (9) during the circular motion of the scraper (21); The weir plate mechanism (9) includes a fixed weir plate (901) and a movable weir plate (902). A fixed plate (13) is fixedly connected to one side of the top of the separation tank (4) by bolts. A connecting seat (16) is fixedly connected to one side of the bottom of the fixed plate (13). The connecting seat (16) is fixedly connected to the fixed weir plate (901). The adjustment mechanism includes a connecting plate (11). The movable weir plate (902) is hinged to the connecting plate (11).

2. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 1, characterized in that, It also includes a mixing tank (2), an air flotation tank (3), and a clear water tank (6). The side of the shell (1) away from the collection tank (5) is provided with a dissolved air mechanism (10), and the mounting plate (17) is fixedly connected to the chain link of the corresponding chain.

3. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 1, characterized in that, The mounting plate (17) is slidably sleeved with two top rods (18). An adjustment seat (20) is provided at the bottom of the mounting plate (17). The adjustment seat (20) is fixedly connected to the scraper (21). A protrusion is fixedly sleeved at the bottom position of the top rod (18). A movable plate (27) is provided at the top of the mounting plate (17). The movable plate (27) is fixedly connected to the top rod (18). A second spring (19) is movably sleeved on the outer side of the top of the top rod (18). A moving roller (24) is rotatably provided at the midpoint position of the top of the movable plate (27). A fixed seat (22) is fixedly provided at the top of the housing (1).

4. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 3, characterized in that, The movable weir plate (902) is hinged to the fixed weir plate (901). The adjustment mechanism also includes a lifting plate (12). The lifting plate (12) is slidably disposed on the side of the fixed plate (13) near the collection pool (5). A support seat (14) is fixedly connected to one side of the bottom of the fixed plate (13). A first spring (15) is fixedly connected to the top of the support seat (14). One end of the first spring (15) is fixedly connected to the lifting plate (12). The lifting plate (12) is hinged to the connecting plate (11).

5. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 4, characterized in that, The adjusting seat (20) is fixedly connected to the top rod (18). A cam (23) is fixedly connected at the midpoint of the fixed seat (22). One side of the outer wall of the cam (23) is wavy. The cam (23) is movably sleeved on the outside of the transmission shaft (8), so that the distance from one side of the outer wall of the cam (23) to the axis of the transmission shaft (8) changes back and forth.

6. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 3, characterized in that, The connecting plate (11) is fixedly connected to the fixed plate (13). The adjustment mechanism also includes an adjustment rod (29), which is fixedly connected to the movable weir plate (902). A limit block (25) is fixedly connected to one side of the top of the connecting seat (16). A tension spring (26) is fixedly connected to the side of the top of the connecting seat (16) away from the fixed plate (13). One end of the tension spring (26) is fixedly connected to the movable weir plate (902). The adjustment seat (20) is fixedly connected to the mounting plate (17). The top rod (18) is movably sleeved with the adjustment seat (20). A second cam (28) is fixedly connected to one side of the fixed seat (22).

7. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 6, characterized in that, The second cam (28) is movably sleeved on the outside of the transmission shaft (8). The distance from the arc-shaped outer wall of one side of the second cam (28) to the axis of the transmission shaft (8) is greater than the distance from the horizontal plane of the moving roller (24) to the axis of the transmission shaft (8). The second cam (28) can drive the moving roller (24) to move, and the size of the moving distance is such that the adjusting rod (29) drives the movable weir plate (902) to flip to tilt towards the collection pool (5).

8. The mixed hydrocarbon distillation and separation wastewater treatment equipment according to claim 6, characterized in that, The bottom surface of the top rod (18) is at a higher height than the bottom surface of the scraper (21), and the outer wall surface of the second cam (28) is wavy.

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