A wastewater treatment device for needle coke production

Abstract

The present invention provides a wastewater treatment device for needle coke production, which relates to the technical field of wastewater treatment, and includes a treatment tank, a driving mechanism and a stirring assembly. The top of the treatment tank is provided with an annular opening, and a water injection pipe is inserted in the surface area of ​​the treatment tank outside the annular opening. A drainage pipe and a slag discharge pipe are welded to the side of the treatment tank, and valves are installed on the surfaces of the drainage pipe and the slag discharge pipe. The driving mechanism is fixed in the middle of the treatment tank, and a transmission plate is welded on the top of the driving mechanism. The treatment device can switch different purification treatment modes according to the content of suspended impurities in the sewage, and can flexibly select flow treatment or quantitative treatment process, and improve the injection efficiency and diffusion efficiency of the coagulant by means of the stirring assembly, and also avoid the large interference with the sedimentation part that has been generated at the bottom during the early stirring process, taking into account the efficiency of the coagulant diffusion process and the sedimentation process, and the discharge of the sediment is more thorough and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device for needle coke production. Background Art

[0002] Needle coke is a high-quality carbonaceous material made by calcining petroleum tar or coal tar under certain conditions. Its particles are in the shape of elongated needles or cylinders. A large amount of sewage will be generated during the production process of needle coke. Direct discharge of this sewage will cause great pollution to the surrounding environment. Therefore, it is necessary to use corresponding sewage treatment equipment to purify this sewage before discharge.

[0003] The treatment scheme for wastewater used in the needle coke production process in the prior art includes a flocculation and sedimentation process, in which the solid particles or colloidal particles suspended in the water can be quickly precipitated to the bottom of the water by adsorption, condensation and precipitation through a coagulant, thereby achieving the purpose of purifying the water quality. However, in the conventional scheme, only a certain amount of wastewater can be injected into the sedimentation tank, and then the coagulant is sprayed, stirred, and then left to settle for a long time. The injection and discharge process cannot be carried out continuously, resulting in cumbersome operation steps, and the stirring process will cause the bottom sediment to float again, further prolonging the time required for the entire sedimentation process. Without stirring, it is difficult to ensure the rapid and uniform diffusion of the coagulant, and it is easy to have the problem that some areas cannot fully produce flocculation reaction. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a wastewater treatment device for needle coke production to solve the problems raised in the above-mentioned background technology. The present invention can switch different purification treatment modes according to the content of suspended impurities in the wastewater, and can flexibly select flow treatment or quantitative static treatment process, thereby improving the efficiency of wastewater treatment, and with the help of a stirring component, the injection efficiency and diffusion efficiency of the coagulant are improved, while also avoiding a large interference with the sedimentation part that has already occurred at the bottom during the initial stirring process, taking into account the efficiency of the coagulant diffusion process and the sedimentation process, and the discharge of the sediment is more thorough and efficient.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a sewage treatment device for needle coke production, comprising a sewage treatment device body, the sewage treatment device body comprising a treatment tank, a driving mechanism and a stirring assembly, the top of the treatment tank is provided with an annular opening, and a water injection pipe is inserted into the surface area of ​​the treatment tank outside the annular opening, a drainage pipe and a slag discharge pipe are welded to the side of the treatment tank, and valves are installed on the surfaces of the drainage pipe and the slag discharge pipe, the driving mechanism is fixed in the middle position of the treatment tank, a transmission plate is welded to the top of the driving mechanism, and the end of the transmission plate is welded to the top of the stirring assembly as a whole, the stirring assembly comprises a spraying mechanism, a blocking mechanism and a scraping assembly, a frame is built on the outside of the spraying mechanism, the two ends of the blocking mechanism are inserted into the inner bottom position of the frame, and the scraping assembly is sleeved at the rear end edge of the blocking mechanism.

[0006] Furthermore, the driving mechanism includes a motor and a driving shaft. A central column is welded in the middle of the treatment pool, and the interior of the central column is a hollow structure. A motor is embedded in the interior of the central column, and the output end of the motor is connected to the driving shaft.

[0007] Furthermore, one end of the bottom of the transmission plate is welded to the end of the driving shaft as a whole, one end of the top of the transmission plate is provided with a coagulant injection hole, and the interior of the transmission plate is a hollow structure, a partition is welded to the side of the center column, and the other end and the bottom of the partition are welded to the inner wall of the treatment tank as a whole.

[0008] Furthermore, the spraying mechanism includes a frame and a nozzle, a diversion pipe is connected in the middle of the nozzle, side plates are welded at both ends of the frame, strip holes are opened at the bottom of the side plates, and a first extension plate and a second extension plate are integrally formed on one side of the top of the frame.

[0009] Furthermore, a guide column is welded to the bottom of the first extension plate, a movable sleeve is provided in the middle of the second extension plate, the number of the first extension plate and the guide column are both two, and the first extension plate is symmetrically arranged on both sides of the second extension plate.

[0010] Furthermore, the top of the diversion pipe is welded to one end of the bottom of the transmission plate as a whole, and the interior of the transmission plate is connected to the interior of each nozzle through the diversion pipe. The two ends of the nozzle are welded to the inner side of the side plate, and a spray hole is opened on the surface of each nozzle.

[0011] Furthermore, the enclosure mechanism includes a pressing roller and a baffle, a central axis is inserted into the interior of the pressing roller, lifting columns are integrally formed at both ends of the central axis, and a first guide hole is opened on the surface of the baffle.

[0012] Furthermore, columns are welded on the tops of both ends of the central axis, the tops of the columns are welded to the bottoms of the baffles as a whole, the guide columns pass through the inside of the first guide hole, the two ends of the baffles are respectively fitted with the side faces of the central column and the inner walls of the treatment pool, and the lifting columns are integrally embedded in the interior of the strip holes.

[0013] Furthermore, the scraping assembly includes a collecting trough and a screw rod, the bottom of the collecting trough is integrally formed with a shovel plate, the top of the collecting trough is provided with a threaded hole and a second guide hole, and the screw rod passes through the inside of the threaded hole.

[0014] Furthermore, a handwheel is connected to the top of the screw rod, the guide column passes through the inside of the second guide hole, the two ends of the collecting tank are respectively against the side of the central column and the inner wall of the treatment tank, and one side of the collecting tank is in an open state.

[0015] Beneficial effects of the present invention:

[0016] 1. The wastewater treatment device for needle coke production can switch different purification treatment modes according to the content of suspended impurities in the wastewater, and can flexibly choose flow treatment or quantitative static treatment process. Therefore, it can select a more effective treatment mode according to different water quality, which is more targeted and improves the efficiency of wastewater treatment.

[0017] 2. The wastewater treatment device for needle coke production improves the injection efficiency and diffusion efficiency of the coagulant with the help of the stirring component. At the same time, through the enclosure mechanism at the bottom, it can avoid the entire stirring component from causing significant interference to the sedimentation part that has already occurred at the bottom during the injection of the coagulant and the early stirring process, thereby taking into account the high efficiency of the coagulant diffusion process and the stability of the sedimentation process.

[0018] 3. The wastewater treatment device for needle coke production can control whether the collection tank at the bottom is pressed to the bottom of the treatment tank through the lifting and lowering movement of the scraping component, and then can move downward regularly with the help of this structure, so that the sediment settled at the bottom can be discharged quickly and efficiently, and the switching process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the appearance of a wastewater treatment device for needle coke production according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the inner part of the treatment pool of the present invention;

[0021] Figure 3 A schematic diagram of a stirring component portion of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the spraying mechanism part of the present invention;

[0023] Figure 5 It is a schematic diagram of the enclosure mechanism part of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the scraping component part of the present invention;

[0025] In the figure: 1. treatment tank; 2. annular opening; 3. water injection pipe; 4. drainage pipe; 5. slag discharge pipe; 6. driving mechanism; 7. coagulant injection hole; 8. transmission plate; 9. stirring assembly; 10. partition; 11. center column; 12. motor; 13. driving shaft; 14. spraying mechanism; 15. enclosure mechanism; 16. scraping assembly; 17. side plate; 18. strip hole; 19. nozzle; 20. frame; 21. diversion pipe; 22. first extension plate; 23. second extension plate; 24. movable sleeve; 25. guide column; 26. lifting column; 27. center axis; 28. pressing roller; 29. ​​column; 30. baffle; 31. first guide hole; 32. collecting trough; 33. shovel plate; 34. second guide hole; 35. screw rod; 36. hand wheel; 37. threaded hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] See also Figures 1 to 6The present invention provides the following technical solutions: a wastewater treatment device for needle coke production, comprising a wastewater treatment device body, the wastewater treatment device body comprising a treatment tank 1, a driving mechanism 6 and a stirring assembly 9, an annular opening 2 is provided at the top of the treatment tank 1, a water injection pipe 3 is plugged into the surface area of ​​the treatment tank 1 outside the annular opening 2, a drainage pipe 4 and a slag discharge pipe 5 are welded to the side of the treatment tank 1, and valves are installed on the surfaces of the drainage pipe 4 and the slag discharge pipe 5, the driving mechanism 6 is fixed at the middle position of the treatment tank 1, a transmission plate 8 is welded to the top of the driving mechanism 6, and the end of the transmission plate 8 is welded to the top of the stirring assembly 9 as a whole, the stirring assembly 9 comprises a spraying mechanism 14, a blocking mechanism 15 and a scraping assembly 16, a frame 20 is built on the outside of the spraying mechanism 14, two ends of the blocking mechanism 15 are inserted into the inner bottom position of the frame 20, and the scraping assembly 16 is sleeved at the rear end edge of the blocking mechanism 15. The wastewater treatment device for needle coke production injects wastewater into the treatment tank 1, and then injects the external coagulant solution into the wastewater with the help of the stirring component 9, and flocculates and settles the suspended particles in the wastewater through the flocculation reaction, so as to achieve the purpose of purification. The treatment tank 1 can choose to continuously inject purification by fluidity or inject quantitatively in batches and then stand for purification according to the content of suspended particle impurities in the wastewater and the purification target of the wastewater. When the fluidity continuous purification treatment is performed, the driving mechanism 6 is directly controlled to drive the stirring component 9 to move to the side of the partition 10, which is also the injection side of the water injection pipe 3. At this time, the sewage is directly injected, and the coagulant solution is injected into the coagulant injection hole 7. In this state, the injected sewage can be directly mixed with the coagulant solution through the multi-layer spraying mechanism 14 after entering the interior of the treatment tank 1, and flow unidirectionally in the interior of the treatment tank 1, and finally discharged from the drainage pipe 4 on the other side of the partition 10. This process can continuously inject sewage and open the drainage pipe 4.

[0028] When the demand for sedimentation and purification is high, a certain amount of sewage is injected into the treatment tank 1, and the drainage pipe 4 is closed. At this time, the coagulant solution is injected into the stirring component 9, and the driving mechanism 6 is turned on to drive the stirring component 9 to reciprocate inside the treatment tank 1, and move from both sides of the partition 10 to the other side in turn. In the process, the coagulant solution is evenly diffused and injected, and the stirring and mixing process is achieved. After static sedimentation, the sediment at the bottom is discharged with the help of the driving mechanism 6 and the scraping component 16.

[0029] In this embodiment, the driving mechanism 6 includes a motor 12 and a driving shaft 13, a central column 11 is welded in the middle of the treatment tank 1, and the interior of the central column 11 is a hollow structure, a motor 12 is embedded in the interior of the central column 11, and the output end of the motor 12 is connected to the driving shaft 13, the bottom end of the transmission plate 8 is welded to the end of the driving shaft 13 as a whole, a coagulant injection hole 7 is provided at the top end of the transmission plate 8, and the interior of the transmission plate 8 is a hollow structure, a partition 10 is welded to the side of the central column 11, and the other end and the bottom of the partition 10 are welded to the inner wall of the treatment tank 1 as a whole. Different purification treatment modes can be switched according to the content of suspended impurities in sewage, and flow treatment or quantitative static treatment process can be flexibly selected, so a more effective treatment mode can be selected according to different water qualities, which is more targeted and improves the efficiency of sewage treatment.

[0030] Specifically, after starting the motor 12, the transmission plate 8 will be driven to rotate through the driving shaft 13 at the top. The end of the transmission plate 8 is directly connected to the entire stirring assembly 9 through the diversion pipe 21. Therefore, through this structure, the entire stirring assembly 9 can be directly controlled to rotate inside the treatment tank 1. In this process, the coagulant solution is input along the coagulant injection hole 7 at the top, and can enter the diversion pipe 21 along the transmission plate 8, and finally diffuse into the sewage inside the treatment tank 1 under the guidance of the spraying mechanism 14.

[0031] In this embodiment, the spraying mechanism 14 includes a frame 20 and a nozzle 19, a bypass pipe 21 is connected in the middle of the nozzle 19, side plates 17 are welded at both ends of the frame 20, a strip hole 18 is provided at the bottom of the side plate 17, a first extension plate 22 and a second extension plate 23 are integrally formed on one side of the top of the frame 20, a guide column 25 is welded at the bottom of the first extension plate 22, a movable sleeve 24 is provided in the middle of the second extension plate 23, the number of the first extension plate 22 and the guide column 25 are both two, and the first extension plate 22 is symmetrically arranged on both sides of the second extension plate 23, the top of the bypass pipe 21 is welded to the bottom end of the transmission plate 8 as a whole, and the interior of the transmission plate 8 is connected to the interior of each nozzle 19 through the bypass pipe 21, the two ends of the nozzle 19 are welded to the inner side of the side plate 17, and a spray hole is provided on the surface of each nozzle 19.

[0032] Specifically, the coagulant solution enters each nozzle 19 from the diversion pipe 21, and is finally discharged into the sewage from the multiple nozzle holes on the surface of the nozzle 19. According to the above two purification processes, whether the stirring component 9 is in a stationary state at one end of the partition 10 or in a rotating state in conjunction with the driving mechanism 6, it can ensure that the coagulant solution can diffuse into the sewage.

[0033] In this embodiment, the enclosure mechanism 15 includes a pressing roller 28 and a baffle 30. The inside of the pressing roller 28 is interspersed with a central shaft 27. The two ends of the central shaft 27 are integrally formed with lifting columns 26. The surface of the baffle 30 is provided with a first guide hole 31. The tops of the two ends of the central shaft 27 are welded with columns 29. The top of the column 29 is welded to the bottom of the baffle 30 as a whole. The guide column 25 passes through the inside of the first guide hole 31. The two ends of the baffle 30 are respectively fitted with the side of the central column 11 and the inner wall of the treatment tank 1. The lifting column 26 is integrally embedded in the inside of the strip hole 18. With the aid of the stirring assembly 9, the injection efficiency and diffusion efficiency of the coagulant are improved. At the same time, through the enclosure mechanism 15 at the bottom, during the injection of the coagulant and the early stirring process, the entire stirring assembly 9 can be prevented from causing a large interference to the sedimentation part that has already occurred at the bottom, taking into account the high efficiency of the coagulant diffusion process and the stability of the sedimentation process.

[0034] Specifically, when the sewage is purified in batches and quantitatively, the driving shaft 13 drives the stirring assembly 9 to rotate along the inside of the treatment tank 1, and the enclosure mechanism 15 at the bottom of the stirring assembly 9 is pressed on the surface of the sediment through the pressing roller 28 at the bottom, and rolls in the process, while the baffle 30 at the top moves synchronously with the movement of the pressing roller 28. The top nozzle 19 sprays the coagulant solution while stirring the sewage through the nozzle 19 itself, thereby accelerating the diffusion rate of the coagulant solution, and the stirring range is blocked by the baffle 30, reducing the impact on the sediment that has already been produced at the bottom, thereby reducing the stirring interference with the sediment and improving the efficiency of the early sedimentation. After the injection of the coagulant solution is completed, the rotation process of the stirring assembly 9 can be stopped, and the later static sedimentation treatment can be carried out.

[0035] In this embodiment, the scraper assembly 16 includes a collection trough 32 and a screw rod 35. The bottom of the collection trough 32 is integrally formed with a shovel plate 33. The top of the collection trough 32 is provided with a threaded hole 37 and a second guide hole 34, and the screw rod 35 passes through the inside of the threaded hole 37. The top of the screw rod 35 is connected to a hand wheel 36, and the guide column 25 passes through the inside of the second guide hole 34. The two ends of the collection trough 32 are respectively against the side of the center column 11 and the inner wall of the treatment tank 1, and one side of the collection trough 32 is in an open state. Through the lifting and lowering movement of the scraper assembly 16, it is possible to control whether the collection trough 32 at the bottom is pressed to the bottom of the treatment tank 1, and then the structure can be used to move downward regularly, so that the sediment settled at the bottom can be discharged quickly and efficiently, and the switching process is simple and convenient.

[0036] Specifically, after the flocculation and sedimentation treatment is completed, the hand wheel 36 is rotated from the top, and the entire collecting tank 32 is driven downward by the rotation of the screw rod 35 and the threaded hole 37 until the bottom shovel plate 33 is pressed to the bottom position of the treatment tank 1, and the driving mechanism 6 is started again in this state. After driving the collecting tank 32 to rotate, the generated sediment can be scraped and collected until the collecting tank 32 is rotated to be aligned with the slag discharge pipe 5. The slag discharge pipe 5 is opened, and the sediment collected in the collecting tank 32 can be discharged in a targeted manner.

[0037] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wastewater treatment device for needle coke production, comprising a wastewater treatment device body, characterized in that: The sewage treatment device body comprises a treatment tank (1), a driving mechanism (6) and a stirring assembly (9); the top of the treatment tank (1) is provided with an annular opening (2); a water injection pipe (3) is inserted into the surface area of ​​the treatment tank (1) outside the annular opening (2); a drainage pipe (4) and a slag discharge pipe (5) are welded to the side of the treatment tank (1); and valves are installed on the surfaces of the drainage pipe (4) and the slag discharge pipe (5); the driving mechanism (6) is fixed at the middle position of the treatment tank (1); a transmission plate (8) is welded to the top of the driving mechanism (6); the end of the transmission plate (8) is welded to the top of the stirring assembly (9) as a whole; the stirring assembly (9) comprises a spraying mechanism (14), a blocking mechanism ( The spray mechanism (14) comprises a frame (20) on the outside of the spray mechanism (14), two ends of the enclosure mechanism (15) are inserted into the inner bottom position of the frame (20), the scraper component (16) is sleeved at the rear end edge of the enclosure mechanism (15), the drive mechanism (6) comprises a motor (12) and a drive shaft (13), a center column (11) is welded in the middle of the treatment pool (1), and the interior of the center column (11) is a hollow structure, the motor (12) is embedded in the center of the center column (11), and the output end of the motor (12) is connected to the drive shaft (13), the spray mechanism (14) comprises a frame (20) and a nozzle (19), and the nozzle (19) is connected in the middle with a diverter The frame (20) comprises a pipe (21), side plates (17) are welded at both ends of the frame (20), a strip hole (18) is provided at the bottom of the side plates (17), a first extension plate (22) and a second extension plate (23) are integrally formed on one side of the top of the frame (20), a guide column (25) is welded at the bottom of the first extension plate (22), a movable sleeve (24) is provided in the middle of the second extension plate (23), the first extension plate (22) and the guide column (25) are both two in number, and the first extension plate (22) is symmetrically arranged on both sides of the second extension plate (23), the enclosure mechanism (15) comprises a pressing roller (28) and a baffle (30), the interior of the pressing roller (28) is interspersed with a center The central shaft (27) has lifting columns (26) formed integrally at both ends of the central shaft (27), a first guide hole (31) is formed on the surface of the baffle (30), columns (29) are welded at the tops of both ends of the central shaft (27), the tops of the columns (29) and the bottoms of the baffle (30) are welded as a whole, the guide columns (25) pass through the inside of the first guide hole (31), the two ends of the baffle (30) are respectively in contact with the side of the central column (11) and the inner wall of the treatment pool (1), the lifting columns (26) are integrally embedded in the inside of the strip hole (18), the scraping assembly (16) includes a collecting trough (32) and a screw rod (35), and a shovel plate (33) is formed integrally at the bottom of the collecting trough (32).The top of the collecting trough (32) is provided with a threaded hole (37) and a second guide hole (34), and the screw rod (35) passes through the inside of the threaded hole (37), the top of the screw rod (35) is connected to a hand wheel (36), and the guide column (25) passes through the inside of the second guide hole (34), and the two ends of the collecting trough (32) are respectively pressed against the side of the center column (11) and the inner wall of the treatment pool (1), and one side of the collecting trough (32) is in an open state.

2. A wastewater treatment device for needle coke production according to claim 1, characterized in that: The bottom end of the transmission plate (8) is welded to the end of the driving shaft (13) as a whole, the top end of the transmission plate (8) is provided with a coagulant injection hole (7), and the interior of the transmission plate (8) is a hollow structure, the side of the central column (11) is welded with a partition (10), and the other end and the bottom of the partition (10) are welded to the inner wall of the treatment tank (1) as a whole.

3. The wastewater treatment device for needle coke production according to claim 1, characterized in that: The top of the flow-dividing pipe (21) is welded to one end of the bottom of the transmission plate (8) as a whole, and the interior of the transmission plate (8) is connected to the interior of each nozzle (19) through the flow-dividing pipe (21). Both ends of the nozzle (19) are welded to the inner side of the side plate (17), and a spray hole is provided on the surface of each nozzle (19).

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