Wastewater treatment device for pigment production

Abstract

The invention relates to the technical field of sewage treatment equipment, and particularly discloses a wastewater treatment device for pigment production, the wastewater treatment device comprises a sedimentation mechanism for sewage treatment and an outer filter vat mechanism, a driving motor is mounted above the outer filter vat mechanism, a pump body is arranged on the periphery of the outer filter vat mechanism, and the outer filter vat mechanism is connected with the sedimentation mechanism. A back-flushing mechanism is arranged in the outer filter barrel mechanism; the outer filtering barrel mechanism comprises an outer sealing barrel and an inner filtering barrel. Linkage rotation of the inner filter barrel and the backflushing mechanism is driven by the driving motor, continuous backflushing cleaning of the inner filter barrel in the wastewater filtering process is achieved, the problem that a traditional filter device cannot be cleaned in the filtering process is avoided, the cleanliness of a filter cartridge piece is ensured, and the service life of the filter cartridge piece is prolonged. The filtering efficiency and the continuous operation capability of the equipment are effectively improved. Meanwhile, due to the design of the backflushing mechanism, the cleaning process is more comprehensive, and the reduction of the filtering efficiency caused by incomplete cleaning is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment equipment, and particularly relates to a wastewater treatment device for pigment production. Background Art

[0002] A pigment is a substance used for coloring, and there are many types, such as cinnabar, zinc white (zinc oxide), etc. In the production process of pigments, due to various chemical reactions and raw material treatments, a large amount of wastewater is often generated. These wastewaters usually have the characteristics of high concentration, high chromaticity, and large variations in water quality and quantity. If directly discharged into the environment, they will cause serious pollution to water bodies, thus requiring the use of sewage treatment devices.

[0003] In a Chinese patent with the publication number CN113582386B, a wastewater treatment device for pigment production is mentioned, which includes: an external machine base; a filtration and cleaning component vertically and fixedly embedded on one side of the upper end surface of the external machine base. A delivery pipe is vertically connected to the upper end surface of the filtration and cleaning component, and a drainage pipe is horizontally connected to the lower side of one side of the filtration and cleaning component; a flocculation and sedimentation component horizontally fixed on the side of the external machine base far from the filtration and cleaning component, and the flocculation and sedimentation component is connected to the drainage pipe; and an external discharge pipe horizontally penetrating through the side of the external machine base far from the filtration and cleaning component. One end of the external discharge pipe is connected to the flocculation and sedimentation component, and the other end of the external discharge pipe is connected to an external neutralization tank. Although the above equipment can inject liquid into the external cleaning device and regularly clean the filter cylinder parts after filtration during use, this results in the inability to clean the filter cylinder parts during the filtration process. In addition, during the cleaning process, the cleaning range is limited because the filter cylinder parts cannot rotate. Summary of the Invention

[0004] The purpose of the present invention is to provide a wastewater treatment device for pigment production to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A wastewater treatment device for pigment production includes a sedimentation mechanism for sewage treatment and an external filter barrel mechanism. A driving motor is installed above the external filter barrel mechanism, a pump body is arranged around the external filter barrel mechanism, and a backwashing mechanism is arranged inside the external filter barrel mechanism; the external filter barrel mechanism includes an external sealing barrel and an internal filter barrel, and the internal filter barrel is used for filtering sewage; the backwashing mechanism includes a support ring, a linkage ring, and a semi-spiral plate. The backwashing mechanism is used for backwashing and cleaning the internal filter barrel, and the backwashing mechanism is also used for transporting the filtered liquid for secondary filtration; the pump body is used for transporting the liquid filtered by the internal filter barrel.

[0006] Preferably, a linkage gear ring is fixedly connected to the periphery of the upper port of the inner filter barrel. The output end of the drive motor is connected to a drive gear inside the outer seal barrel. The drive gear is meshed and connected to the periphery of the linkage gear ring. An internal gear ring is fixedly connected above the linkage ring, and the inner side wall of the internal gear ring is meshed and connected to the drive gear.

[0007] Preferably, the support ring is located outside the linkage gear ring. The support ring is fixedly connected to the inner wall of the outer seal barrel. Connecting pipes are communicated on both sides of the support ring. The output end of the pump body is connected to the connecting pipes. An engagement chamber is provided inside the linkage ring. The bottom port of the support ring is communicated with the engagement chamber. The linkage ring is movably connected below the support ring.

[0008] Preferably, two docking ports are provided on the inner side wall of the linkage ring. The upper end of the semi-helical plate is communicated with a docking block. The inside of the docking block is communicated with the docking port. A one-way pipe is connected to the lower port of the semi-helical plate. The side of the one-way pipe away from the semi-helical plate is communicated with a liquid inlet end pipe.

[0009] Preferably, uniformly distributed linkage fan blades are fixedly connected to the periphery of the bottom end of the inner filter barrel. The linkage fan blades are coplanar with the liquid inlet end pipe. A plurality of spray nozzles are provided at equal intervals on the side of the semi-helical plate close to the inner filter barrel.

[0010] Preferably, uniformly distributed connection plates are fixedly connected to the bottom of the linkage ring. The bottom ends of the connection plates are fixedly connected to a bottom support ring. The liquid inlet end pipe is fixedly connected to the inside of the bottom support ring.

[0011] Preferably, a support disc is fixedly connected inside the outer seal barrel. The support disc is located below the inner filter barrel and is used to support the inner filter barrel. Guide columns are fixedly connected to the inner wall of the outer seal barrel, and a sensor is sleeved outside the guide columns.

[0012] Preferably, an input pipe is provided at the input end of the pump body. The input pipe is communicated with the inside of the outer seal barrel, and the connection part of the input pipe is located below the support disc. The output end of the pump body is connected to an output pipe. One end of the output pipe is connected to an engagement ring pipe, and the engagement ring pipe is connected to the connecting pipe.

[0013] Preferably, a liquid inlet is provided at the top end of the outer seal barrel. The bottom of the outer seal barrel is connected to a lower connection end. A discharge pipe is communicated below the inner filter barrel. The discharge pipe penetrates through the outer seal barrel and the lower connection end.

[0014] Preferably, an engagement pipe is provided on one side of the outer seal barrel. The end of the engagement pipe away from the outer seal barrel is connected to a sedimentation mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By driving the linkage rotation of the inner filter barrel and the backwashing mechanism with a driving motor, the present invention realizes continuous backwashing and cleaning of the inner filter barrel during the wastewater filtration process. This not only avoids the problem that traditional filtering devices cannot be cleaned during the filtration process, but also ensures the cleanliness of the filter barrel parts, effectively improving the filtration efficiency and the continuous operation ability of the equipment. At the same time, the design of the backwashing mechanism makes the cleaning process more comprehensive, reducing the decrease in filtration efficiency caused by incomplete cleaning.

[0016] Through the cooperation of the semi-spiral plate and the linkage fan blades, the invention realizes secondary filtration of the liquid to be filtered and effective disturbance of the sediment. This not only improves the filtration accuracy, but also avoids the accumulation of sediment inside the equipment, reduces the risk of blockage, and ensures the continuity and stability of wastewater treatment.

[0017] Through the setting of sensors, the present invention can monitor the change of the liquid level inside the outer sealing barrel in real time and automatically adjust the operating state of the pump body according to the liquid level height. This intelligent liquid management mechanism not only improves the automation degree of the equipment, but also effectively avoids waste of resources and excessive wear of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the whole of the present invention; Figure 2 is a schematic structural diagram of the interior of the whole of the present invention; Figure 3 is a schematic structural diagram of the outer filter barrel mechanism of the present invention; Figure 4 is a schematic structural diagram of the separated backwashing mechanism of the present invention; Figure 5 is a schematic structural diagram of the inner filter barrel of the present invention; Figure 6 is a schematic structural diagram of the backwashing mechanism of the present invention; Figure 7 is a schematic structural diagram of the support ring and the linkage ring of the present invention; Figure 8 is a schematic structural diagram of the semi-spiral plate of the present invention.

[0019] In the figure: 1. Sedimentation mechanism; 2. Outer filter barrel mechanism; 21. Outer sealing barrel; 22. Liquid inlet; 23. Connecting pipe; 24. Lower connection end; 25. Inner filter barrel; 251. Discharge pipe; 252. Linkage gear ring; 253. Linkage fan blades; 26. Support disc; 27. Guide post; 28. Sensor; 3. Driving motor; 31. Driving gear; 4. Recoil mechanism; 41. Support ring; 411. Connecting pipe; 42. Inner gear ring; 421. Linkage ring; 422. Connecting chamber; 423. Docking port; 43. Semi-helical plate; 431. Nozzle; 432. Docking block; 433. Liquid inlet end pipe; 434. Check valve; 44. Connecting plate; 45. Bottom support ring; 5. Pump body; 51. Input pipe; 52. Output pipe; 53. Connecting ring pipe. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Refer to Figures 1-8 As shown, the present invention provides a wastewater treatment device for pigment production, including a sedimentation mechanism 1 for sewage treatment and an outer filter barrel mechanism 2. A drive motor 3 is installed above the outer filter barrel mechanism 2, a pump body 5 is arranged around the outer filter barrel mechanism 2, and a recoil mechanism 4 is arranged inside the outer filter barrel mechanism 2; The outer filter barrel mechanism 2 includes an outer sealing barrel 21 and an inner filter barrel 25, and the inner filter barrel 25 is used for filtering sewage; The recoil mechanism 4 includes a support ring 41, a linkage ring 421 and a semi-helical plate 43. The recoil mechanism 4 is used for backwashing and cleaning the inner filter barrel 25, and the recoil mechanism 4 is also used for transporting the filtered liquid for secondary filtration; The pump body 5 is used for transporting the liquid filtered by the inner filter barrel 25.

[0022] In a further embodiment, a linkage gear ring 252 is fixedly connected to the periphery of the upper port of the inner filter barrel 25. The output end of the drive motor 3 is located inside the outer sealing barrel 21 and connected with a drive gear 31. The drive gear 31 is meshed and connected to the periphery of the linkage gear ring 252. An inner gear ring 42 is fixedly connected above the linkage ring 421, and the inner side wall of the inner gear ring 42 is meshed and connected to the drive gear 31.

[0023] In this embodiment, the drive motor 3 and the drive gear 31 are devices for rotating the inner filter barrel 25 in the prior art, so as to accelerate the filtration of the sewage entering the inner filter barrel 25.

[0024] In a further embodiment, the support ring 41 is located on the periphery of the linkage gear ring 252. The support ring 41 is fixedly connected to the inner wall of the outer sealing barrel 21. Connecting pipes 411 communicate with both sides of the support ring 41. The connecting pipes 411 are connected to the output end of the pump body 5. An engagement chamber 422 is formed inside the linkage ring 421. The bottom port of the support ring 41 communicates with the engagement chamber 422. The linkage ring 421 is movably connected below the support ring 41.

[0025] In this embodiment, the cross-section of the linkage ring 421 is an inverted T shape. An annular notch is formed in the outer peripheral part, and the annular notch communicates with the engagement chamber 422. The annular notch is the socket of the support ring 41, so that liquid can still be conveyed into the engagement chamber 422 when the inner gear ring 42 and the linkage ring 421 rotate.

[0026] In a further embodiment, two docking ports 423 are formed in the inner side wall of the linkage ring 421. The upper end of the semi-helical plate 43 communicates with a docking block 432. The inside of the docking block 432 communicates with the docking ports 423. A one-way pipe 434 is connected to the lower port of the semi-helical plate 43. One side of the one-way pipe 434 away from the semi-helical plate 43 communicates with a liquid inlet end pipe 433.

[0027] In this embodiment, the inner filter barrel 25 rotates counterclockwise, while the semi-helical plate 43 rotates clockwise. Thus, part of the liquid can be conveyed into the liquid inlet end pipe 433 through the linkage fan blades 253. Due to the one-way property of the one-way pipe 434, part of the liquid can be introduced into the semi-helical plate 43. After cooperating with the operation of the pump body 5, the liquid can be ejected from the spray ports 431.

[0028] In a further embodiment, evenly distributed linkage fan blades 253 are fixedly connected to the outer periphery of the bottom end of the inner filter barrel 25. The linkage fan blades 253 and the liquid inlet end pipe 433 are coplanar. A plurality of equally spaced spray ports 431 are formed on the side of the semi-helical plate 43 close to the inner filter barrel 25.

[0029] In this embodiment, the inner filter barrel 25, the discharge pipe 251, the linkage gear ring 252 and the linkage fan blades 253 all rotate counterclockwise synchronously, so that the linkage fan blades 253 can disturb the filtered liquid.

[0030] In a further embodiment, evenly distributed connection plates 44 are fixedly connected to the bottom of the linkage ring 421. The bottom ends of the connection plates 44 are fixedly connected to a bottom support ring 45. The liquid inlet end pipe 433 is fixedly connected to the inner side of the bottom support ring 45.

[0031] In this embodiment, the semi-helical plate 43 is semi-helical and fits the outer surface of the inner filter barrel 25. The upper port of the inner filter barrel 25 is larger than the bottom port, similar to a frustum of a cone.

[0032] In a further embodiment, a support disk 26 is fixedly connected inside the outer sealing barrel 21. The support disk 26 is located below the inner filter barrel 25 and is used to support the inner filter barrel 25. A guide post 27 is fixedly connected to the inner wall of the outer sealing barrel 21, and a sensor 28 is sleeved outside the guide post 27.

[0033] In this embodiment, mounting plates are provided at the upper and lower ends of the guide post 27 and are fixedly connected to the inner wall of the outer sealing barrel 21. The sensor 28 is an existing buoyancy sensor, so when it is not subjected to buoyancy, it will feedback to the external controller to stop the pump body 5 from operating.

[0034] In a further embodiment, an input pipe 51 is provided at the input end of the pump body 5. The input pipe 51 communicates with the inside of the outer sealing barrel 21, and the connection part of the input pipe 51 is located below the support disk 26. The output end of the pump body 5 is connected with an output pipe 52. One end of the output pipe 52 is connected with an adapter ring pipe 53, and the adapter ring pipe 53 is connected with the connecting pipe 411.

[0035] In this embodiment, the pump body 5 is a high-pressure pump in the prior art, so that the filtered liquid metal inside the outer sealing barrel 21 can be transported.

[0036] In a further embodiment, an adapter pipe 23 is provided on one side of the outer sealing barrel 21. The end of the adapter pipe 23 away from the outer sealing barrel 21 is connected to the sedimentation mechanism 1.

[0037] In this embodiment, a sedimentation tank is provided inside the sedimentation mechanism 1, which is mainly used to treat the flocs in the liquid of the sewage filtered by the inner filter barrel 25.

[0038] In a further embodiment, a liquid inlet 22 is provided at the top of the outer sealing barrel 21. The bottom of the outer sealing barrel 21 is connected with a lower connection end 24. A discharge pipe 251 communicates below the inner filter barrel 25, and the discharge pipe 251 penetrates through the outer sealing barrel 21 and the lower connection end 24.

[0039] In this embodiment, the discharge pipe 251 is used to discharge the particles filtered by the inner filter barrel 25.

[0040] The working principle of the present invention is as follows: When the driving motor 3 operates, the driving gear 31 rotates clockwise inside the outer sealing barrel 21, thereby causing the linkage gear ring 252 to drive the inner filter barrel 25 to rotate counterclockwise, and at the same time causing the inner gear ring 42 and the linkage ring 421 to rotate clockwise. At this time, wastewater is injected into the inner filter barrel 25 from the liquid inlet 22. The wastewater will be filtered by the inner filter barrel 25, and the flocs in the wastewater will remain in the inner filter barrel 25, while the liquid part will pass through the inner filter barrel 25 and reach the space between the outer sealing barrel 21 and the inner filter barrel 25. This part of the liquid will be pumped by the pump body 5 to transport part of the liquid to the inside of the support ring 41, thereby transporting the liquid to the inside of the connection chamber 422 and through the connection port 423 to the inside of the semi-spiral plate 43 and spraying out from the spray port 431. Since the rotation of the inner gear ring 42 and the linkage ring 421 at this time will drive the docking block 432 and the semi-spiral plate 43 to rotate, when the liquid is sprayed out from the spray port 431, the inner filter barrel 25 can be backflushed, thereby enabling backflushing during the process of the inner filter barrel 25 filtering wastewater, so as to discharge the particulate matter or flocs adhering to the inner wall of the inner filter barrel 25 from the discharge pipe 251. This can not only improve the cleaning efficiency but also clean more comprehensively; Due to the counterclockwise rotation of the inner filter barrel 25, the linkage fan blade 253 at the bottom of the inner filter barrel 25 will be driven to rotate together. Since there will be precipitation before the liquid between the inner filter barrel 25 and the outer sealing barrel 21 is transported to the sedimentation mechanism 1 through the connecting pipe 23, it can disturb the liquid in this part and cooperate with the clockwise rotating semi-spiral plate 43, so that part of the liquid with precipitation can enter the inside of the semi-spiral plate 43 through the liquid inlet end pipe 433 and be sprayed back onto the inner filter barrel 25 from the spray port 431, thereby enabling secondary filtration, improving the filtration efficiency, and at the same time avoiding the blockage of the connecting pipe 23 by precipitation; As the filtration approaches the end, the liquid between the inner filter barrel 25 and the outer sealing barrel 21 will gradually decrease, causing the sensor 28 to move down with the liquid level, thereby causing the pump body 5 to stop operating. Thus, no more liquid will be taken from the inside of the outer sealing barrel 21 and sprayed out from the spray port 431, and the inner filter barrel 25 will no longer be backflushed or undergo secondary filtration.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for pigment production, comprising a sedimentation mechanism (1) and an external filter barrel mechanism (2) for wastewater treatment, characterized in that: A driving motor (3) is installed above the outer filter barrel mechanism (2), a pump body (5) is arranged on the periphery of the outer filter barrel mechanism (2), and a recoil mechanism (4) is arranged inside the outer filter barrel mechanism (2); The outer filter barrel mechanism (2) comprises an outer sealing barrel (21) and an inner filter barrel (25), wherein the inner filter barrel (25) is used for filtering sewage; The backflushing mechanism (4) comprises a support ring (41), a linkage ring (421) and a semi-spiral plate (43); the backflushing mechanism (4) is used to backflush and clean the inner filter barrel (25); the backflushing mechanism (4) is also used to transport filtered liquid for secondary filtration; The pump body (5) is used to transport liquid filtered by the inner filter barrel (25).

2. A wastewater treatment device for pigment production according to claim 1, characterized in that: A linkage gear ring (252) is fixedly connected to the periphery of the upper port of the inner filter barrel (25); an output end of the drive motor (3) is located inside the outer sealing barrel (21) and is connected to a drive gear (31); the drive gear (31) is meshingly connected to the periphery of the linkage gear ring (252); an inner gear ring (42) is fixedly connected above the linkage ring (421); and an inner side wall of the inner gear ring (42) is meshingly connected to the drive gear (31).

3. A wastewater treatment device for pigment production according to claim 1, characterized in that: The support ring (41) is located at the periphery of the linkage gear ring (252), the support ring (41) is fixedly connected to the inner wall of the outer sealing barrel (21), both sides of the support ring (41) are connected to connecting pipes (411), the connecting pipes (411) are connected to the output end of the pump body (5), a connecting chamber (422) is provided inside the linkage ring (421), a bottom port of the support ring (41) is connected to the connecting chamber (422), and the linkage ring (421) is movably connected below the support ring (41).

4. A wastewater treatment device for pigment production according to claim 1, characterized in that: The inner side wall of the linkage ring (421) is provided with two docking ports (423); the upper end of the semi-spiral plate (43) is connected to a docking block (432); the interior of the docking block (432) is connected to the docking port (423); the lower end of the semi-spiral plate (43) is connected to a one-way tube (434); and the side of the one-way tube (434) away from the semi-spiral plate (43) is connected to a liquid inlet end tube (433).

5. A wastewater treatment device for pigment production according to claim 1, characterized in that: The outer periphery of the bottom end of the inner filter barrel (25) is fixedly connected to evenly distributed linked fan blades (253), the linked fan blades (253) are coplanar with the liquid inlet end pipe (433), and the side of the semi-spiral plate (43) close to the inner filter barrel (25) is provided with equidistantly distributed nozzles (431).

6. A wastewater treatment device for pigment production according to claim 1, characterized in that: The bottom of the linkage ring (421) is fixedly connected to a connection plate (44) that is evenly distributed around it, the bottom end of the connection plate (44) is fixedly connected to a bottom support ring (45), and the inner side of the bottom support ring (45) is fixedly connected to a liquid inlet end pipe (433).

7. A wastewater treatment device for pigment production according to claim 1, characterized in that: A support plate (26) is fixedly connected to the interior of the outer sealed barrel (21), the support plate (26) is located below the inner filter barrel (25), and the support plate (26) is used to support the inner filter barrel (25). A guide column (27) is fixedly connected to the inner wall of the outer sealed barrel (21), and a sensor (28) is sleeved on the exterior of the guide column (27).

8. A wastewater treatment device for pigment production according to claim 1, characterized in that: An input pipe (51) is provided at the input end of the pump body (5), the input pipe (51) being in communication with the interior of the outer sealing barrel (21), and a connection point of the input pipe (51) being located below the support plate (26); an output pipe (52) is connected to the output end of the pump body (5), one end of the output pipe (52) being connected to a connecting ring pipe (53), and the connecting ring pipe (53) being connected to the connecting pipe (411).

9. A wastewater treatment device for pigment production according to claim 1, characterized in that: The top of the outer sealed barrel (21) is provided with a liquid inlet (22), the bottom of the outer sealed barrel (21) is connected to a lower connecting end (24), and the bottom of the inner filter barrel (25) is connected to a discharge pipe (251), the discharge pipe (251) passes through the outer sealed barrel (21) and the lower connecting end (24).

10. A wastewater treatment device for pigment production according to claim 1, characterized in that: A connecting pipe (23) is provided on one side of the outer sealed barrel (21), and one end of the connecting pipe (23) away from the outer sealed barrel (21) is connected to the sedimentation mechanism (1).

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