A multi-stage processing device for marigold processing waste liquid

Abstract

The application is suitable for sewage treatment technology, and provides a marigold processing waste liquid multistage treatment device.The device comprises a box body, a precipitation bin for providing a waste liquid flocculation and precipitation processing space is arranged in the box body, and a fermentation bin for providing a fermentation space of the precipitate is arranged in the box body.The marigold processing waste liquid multistage treatment device provided by the scheme can adjust the pH value of the waste liquid through the setting of the adjusting box, the feeding hopper and the pH value detector, so that good conditions are created for flocculation and precipitation, the precipitation effect is improved, the setting of the adjusting mechanism can assist in discharging the waste liquid and the precipitate, the labor intensity is reduced, the safety hidden danger is eliminated, the equipment treatment capacity is maintained, the environmental pollution is reduced, the waste liquid can be fully mixed with the adjusting liquid through the setting of the first stirring rod, the metal pipe is set to stir and promote uniform fermentation, and the demand for fermentation substances and oxygen can be met.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to a multi-stage treatment device for marigold processing waste liquid. Background Technology

[0002] Marigold processing involves using fresh marigold flowers as raw material to extract lutein and produce related products through processes such as fermentation, pressing, drying, crushing, and granulation. The main wastewater generated during processing comes from the fermentation and pressing stages. After microbial fermentation, the fresh flowers produce acidic wastewater (pH 4-6) containing organic matter such as lactic acid, amino acids, and humic acid. Pressing and dehydration further separates the liquid containing high concentrations of pollutants, and the two are mixed to form processing wastewater. The treatment process for this wastewater typically employs a combination of physical separation and biological fermentation. The specific steps are: pH adjustment - flocculation and sedimentation - decolorization treatment - deep solid-liquid separation - microbial degradation - membrane separation - terminal water purification.

[0003] Under current technological conditions, for the treatment of high concentrations of suspended solids, colloids and organic impurities in marigold processing wastewater, the flocculation and sedimentation process can, by adding flocculants such as polyaluminum chloride (PAC) and polyacrylamide (PAM), cause the tiny particles, proteins, polysaccharides and other substances in the wastewater to aggregate into larger flocs and settle.

[0004] This phenomenon directly leads to multiple operational challenges: on the one hand, manual cleaning requires frequent machine shutdowns, and operators need to wear protective gear to enter the equipment and manually clean the sediment using tools such as shovels and high-pressure water guns. This is not only labor-intensive but also poses safety hazards such as slipping and falling. On the other hand, long-term accumulation of mud will occupy the effective volume of the sedimentation tank, significantly reducing the equipment's processing capacity. At the same time, the prolonged residence time of flocs in the equipment can easily cause anaerobic fermentation, producing malodorous gases such as hydrogen sulfide, which exacerbates equipment corrosion and pollutes the workshop environment. Summary of the Invention

[0005] This invention provides a multi-stage treatment device for marigold processing waste liquid, which aims to solve the problem mentioned in the background art that when the existing technology is used to treat marigold processing waste liquid by flocculation and sedimentation, the sediment accumulates at the bottom of the equipment, and manual retrieval is time-consuming and labor-intensive, increasing the downtime of the equipment.

[0006] To solve the above problems, the present invention is implemented as follows: a multi-stage treatment device for marigold processing wastewater, comprising: a box body, wherein the box body is provided with a sedimentation chamber for providing space for wastewater flocculation and sedimentation processing, and a fermentation chamber for providing space for sediment fermentation; an adjustment box fixed to the top of the box body for providing space for adjusting the pH value of the wastewater, the top of the adjustment box is provided with a feeding hopper for providing a channel for adding pH adjustment liquid, and the adjustment box is provided with a pH detector for detecting the pH value of the wastewater; a wastewater pipe installed on the adjustment box for providing a wastewater addition channel; a connecting pipe disposed between the adjustment box and the box body, the connecting pipe extending into the sedimentation chamber; an electric telescopic rod hinged to the inner wall of the top of the box body, the electric telescopic rod being covered with a retractable rubber protective sleeve for isolating the wastewater, a blocking plate for sealing the connecting pipe being hinged to the output rod of the electric telescopic rod, the blocking plate being hinged to the inner wall of the top of the box body; and an adjustment mechanism disposed on the box body for assisting in the discharge of wastewater and sediment after flocculation treatment.

[0007] Preferably, the adjustment mechanism includes an adjustment frame slidably installed inside the sedimentation chamber for supporting sediment, a rack fixed to the adjustment frame and extending out of the chamber body, a first main shaft and a second main shaft rotatably installed on the top of the chamber body, a motor fixed to the top of the chamber body, the output shaft of the motor being connected to the flange of the first main shaft, a first gear respectively installed on the first main shaft and the second main shaft, movable frames slidably installed on the top of the chamber body and arranged in groups, multiple hydraulic rods fixed to the top of the chamber body for adjusting the positions of the two movable frames, a second gear rotatably installed on the movable frames and meshing with the rack and the first gear for transmission, a support shaft rotatably installed on the top of the chamber body, a first chain drive assembly for hydraulic transmission between the support shaft and the first main shaft, and transmission gears installed on both the support shaft and the second main shaft, with the two transmission gears meshing for transmission.

[0008] Preferably, a first stirring rod extending outside the regulating box is rotatably installed inside the regulating box. A metal pipe is rotatably installed inside the fermentation chamber. An external connecting pipe is installed on the metal pipe via a rotary connector. The metal pipe, in conjunction with the external connecting pipe, provides a channel for adding fermentation liquid and also provides an aeration channel. A first bevel gear is fixed on both the first stirring rod and the metal pipe. Two first bevel gears mesh for transmission. The metal pipe is provided with stirring blades and branch pipes. The branch pipes are arranged in groups and are located above and below the stirring blades, respectively. A regulating valve is provided on the metal pipe for adjusting the fermentation liquid discharge channel. A second chain drive group for transmission is provided between the first stirring rod and the first main shaft.

[0009] Preferably, a support frame is fixed to the top of the box, and a sliding plate connected to the rack is slidably mounted on the support frame to limit the movement path of the rack. A cylinder is fixed on the support frame, and a first spring is installed inside the cylinder. A pin that can extend into the sliding plate to lock the height of the rack for later discharge of sediment is installed on the first spring. A guide is provided inside the first spring to limit the extension path of the first spring.

[0010] Preferably, the cylinder, the first spring, the pin, and the guide are all arranged in groups, with iron blocks fixed on both guides, and a first electromagnet for attracting the iron blocks fixed in both cylinders to assist in locking the rack.

[0011] Preferably, a separation plate is provided between the sedimentation chamber and the fermentation chamber for isolation. The separation plate has an opening for providing a sediment transfer channel. A soft silicone sheet for sealing the opening is installed inside the sedimentation chamber. An elastic skeleton is provided inside the soft silicone sheet. A group of threaded rods are rotatably installed inside the chamber. The same scraper is threaded onto the outside of two of the threaded rods. The bottom of the scraper can contact the bottom inner wall of the adjusting frame to assist in scraping off the sediment.

[0012] Preferably, two mounting brackets are fixed on the outer wall of the housing, and a connecting shaft is rotatably mounted on each of the two mounting brackets. A connection structure for transmission is provided between the two connecting shafts and the two threaded rods. A third chain drive group is provided on both the first main shaft and the second main shaft. The two third chain drive groups are respectively connected to the two connecting shafts for transmission.

[0013] Preferably, the connecting structure includes a limiting block fixed on the connecting shaft, a connecting plate mounted on the threaded rod, a second spring fixed on the connecting plate, a movable plate mounted on the second spring, and a limiting cylinder fixed on the movable plate and capable of being sleeved outside the limiting block. The limiting block is a polygonal prism, and the limiting block slides in contact with the inner wall of the limiting cylinder.

[0014] Preferably, the second spring has a guide rod inside for limiting the extension and retraction path of the second spring, the connecting plate is equipped with a second electromagnet, the movable plate and the limiting cylinder are both made of iron, and the movable plate can be attracted to the second electromagnet to adjust the connection state of the limiting block and the limiting cylinder.

[0015] Preferably, a U-shaped plate is installed at the bottom of the box body, and an outer cylinder rotatably mounted on the U-shaped plate and rotatably connected to the box body and extending into the box body is mounted on the U-shaped plate. A spline rod is slidably mounted inside the outer cylinder, and a second stirring rod for mixing flocculant and waste liquid is fixed on the spline rod and rotatably connected to the adjusting frame. A drive shaft is rotatably mounted on the U-shaped plate, and a second bevel gear is mounted on both the drive shaft and the outer cylinder. The two second bevel gears mesh with each other, and a fourth chain drive assembly for transmission is provided between the drive shaft and any one of the connecting shafts.

[0016] Compared with related technologies, the multi-stage treatment device for marigold processing waste liquid provided by the present invention has the following beneficial effects: Compared with existing technologies, the multi-stage treatment device for marigold processing waste liquid provided in this solution adjusts the pH value of the waste liquid by setting up a regulating tank, a feeding hopper and a pH detector, creating favorable conditions for flocculation and sedimentation and improving the sedimentation effect. The regulating mechanism assists in the discharge of waste liquid and sediment, reducing labor intensity, eliminating safety hazards, maintaining equipment processing capacity and reducing environmental pollution. The first stirring rod can fully mix the waste liquid and the regulating liquid, and the metal pipe stirring promotes uniform fermentation while meeting the fermentation material and oxygen requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of a multi-stage treatment device for marigold processing waste liquid provided by the present invention; Figure 2 This is a top view schematic diagram of a multi-stage treatment device for marigold processing waste liquid provided by the present invention; Figure 3 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 1 An enlarged structural diagram of part B shown in the figure; Figure 5 for Figure 1 An enlarged structural diagram of section C shown in the figure; Figure 6 This is a top view of the support frame in this invention. Figure 7 This is a top sectional view of the support frame in this invention. Figure 8 This is a schematic diagram of the main structure of the connection structure in this invention; Figure 9 This is a three-dimensional structural diagram of the protective cover in this invention; Figure 10 This is a schematic diagram of the assembly structure of the elastic telescopic tube and guide wheel in this invention.

[0018] Reference numerals: 1. Box body; 2. Regulating box; 3. Waste liquid pipe; 4. Feed hopper; 5. Connecting pipe; 6. Electric telescopic rod; 7. Blocking plate; 8. Adjusting frame; 9. Rack; 10. First main shaft; 11. Motor; 12. First gear; 13. Movable frame; 14. Hydraulic rod; 15. Second gear; 16. Second main shaft; 17. First chain drive assembly; 18. Transmission gear; 19. First stirring rod; 20. Metal pipe; 21. External pipe; 22. First bevel gear; 23. Stirring blade; 24. Branch pipe; 25. Regulating valve; 26. Second chain drive assembly; 27. Support frame; 28. Slide plate; 29. ​​Cylinder; 30. First spring; 31. Pin; 32. Guide frame; 33. Iron block; 34. First electromagnetic... 35. Iron; 36. Threaded rod; 37. Scraper; 38. Mounting bracket; 39. Connecting shaft; 40. Third chain drive assembly; 41. Limiting block; 42. Connecting plate; 43. Second spring; 44. Movable plate; 45. Limiting cylinder; 46. Guide rod; 47. Second electromagnet; 48. U-shaped plate; 49. Outer cylinder; 50. Splined rod; 51. Second stirring rod; 52. Drive shaft; 53. Second bevel gear; 54. Fourth chain drive assembly; 55. Drain pipe; 56. Baffle; 57. Filter screen cylinder; 58. Outer shell; 59. Conduit; 60. Clear liquid pipe; 61. Nozzle; 62. Mounting plate; 63. Guide wheel; 64. Coil spring; 65. Filter screen plate; 66. T-connector; 67. Inclined bucket; 68. Protective cover; 69. Block. Detailed Implementation

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This invention provides a multi-stage treatment device for marigold processing wastewater, such as... Figure 1-10As shown, the multi-stage treatment device for marigold processing waste liquid includes: a housing 1, wherein the housing 1 is provided with a sedimentation chamber for providing space for waste liquid flocculation and sedimentation, and a fermentation chamber for providing space for sediment fermentation; an adjustment tank 2 fixed on the top of the housing 1 for providing space for adjusting the pH value of the waste liquid, wherein the top of the adjustment tank 2 is provided with a feeding hopper 4 for providing a channel for adding pH adjustment liquid, and the adjustment tank 2 is provided with a pH detector for detecting the pH value of the waste liquid; a waste liquid pipe 3 installed on the adjustment tank 2 for providing a waste liquid addition channel; a connecting pipe 5 disposed between the adjustment tank 2 and the housing 1, the connecting pipe 5 extending into the sedimentation chamber; an electric telescopic rod 6 hinged to the inner wall of the top of the housing 1, the electric telescopic rod 6 being covered with a retractable rubber protective sleeve for isolating the waste liquid, and a blocking plate 7 for sealing the connecting pipe 5 hinged to the output rod of the electric telescopic rod 6, the blocking plate 7 being hinged to the inner wall of the top of the housing 1; and an adjustment mechanism disposed on the housing 1 for assisting in the discharge of waste liquid and sediment after flocculation treatment.

[0021] In this embodiment, firstly, the marigold processing waste liquid is added to the regulating tank 2 through the waste liquid pipe 3. The pH value of the waste liquid is detected by the pH value detector in the regulating tank 2. Then, according to the detection result, pH value adjusting liquid is added to the regulating tank 2 through the feeding hopper 4 to adjust the pH value of the waste liquid to a suitable range. After that, the electric telescopic rod 6 extends, pushing the blocking plate 7 to no longer block the connecting pipe 5. The waste liquid with the adjusted pH value flows into the sedimentation chamber in the tank 1 through the connecting pipe 5 for flocculation and sedimentation treatment. During the sedimentation process, flocculant is added to make the small particles in the waste liquid aggregate into larger flocs and settle. After the sedimentation is completed, the waste liquid and sediment after flocculation treatment are discharged with the assistance of the regulating mechanism. Some of the sediment enters the fermentation chamber for fermentation treatment. When the sediment has a high aluminum content, it is directly fermented. The fermentation chamber serves as a space for temporarily storing impurities. By setting up the regulating tank 2, the feeding hopper 4, and the pH detector, the pH value of the waste liquid can be adjusted, creating favorable conditions for subsequent flocculation and sedimentation, and improving the sedimentation effect. Through the cooperation of the electric telescopic rod 6, the blocking plate 7, and the connecting pipe 5, the timing of the waste liquid flowing into the sedimentation tank can be flexibly controlled. The retractable rubber protective sleeve can isolate the waste liquid and protect the electric telescopic rod 6. The regulating mechanism assists in the discharge of waste liquid and sediment, avoiding frequent machine shutdowns required for manual sediment cleaning, reducing the labor intensity of operators, eliminating safety hazards such as slipping and falling, and preventing the long-term accumulation of mud that occupies the effective volume of the sedimentation tank, maintaining the equipment's processing capacity, reducing the residence time of flocs, avoiding the generation of malodorous gases from anaerobic fermentation, and reducing environmental pollution in the workshop.

[0022] In a further preferred embodiment of the present invention, the adjusting mechanism includes an adjusting frame 8 slidably installed inside the sedimentation chamber for supporting sediment, a rack 9 fixed on the adjusting frame 8 and extending to the outside of the housing 1, a first main shaft 10 and a second main shaft 16 rotatably installed on the top of the housing 1, a motor 11 fixed on the top of the housing 1, the output shaft of the motor 11 being flange-connected to the first main shaft 10, a first gear 12 respectively installed on the first main shaft 10 and the second main shaft 16, movable frames 13 slidably installed on the top of the housing 1 and arranged in groups, a plurality of hydraulic rods 14 fixed on the top of the housing 1 for adjusting the positions of the two movable frames 13, a second gear 15 rotatably installed on the movable frames 13 and meshing with the rack 9 and the first gear 12 for transmission, a support shaft rotatably installed on the top of the housing 1, a first chain drive group 17 for hydraulic transmission between the support shaft and the first main shaft 10, and transmission gears 18 installed on both the support shaft and the second main shaft 16, with the two transmission gears 18 meshing for transmission.

[0023] In this embodiment, when it is necessary to adjust the position of the sediment in the sedimentation tank to assist in discharge, the motor 11 is started. The output shaft of the motor 11 drives the first main shaft 10 to rotate, and the first gear 12 on the first main shaft 10 rotates accordingly. At the same time, through the transmission of the first chain drive group 17, the first main shaft 10 drives the support shaft to rotate. The transmission gear 18 on the support shaft meshes with the transmission gear 18 on the second main shaft 16, thereby driving the second main shaft 16 to rotate. The first gear 12 on the second main shaft 16 also rotates. Then, the hydraulic rod 14 adjusts the position of the movable frame 13, so that the second gear 15 on the movable frame 13 meshes with the rack 9 and the corresponding first gear 12. Driven by the first gear 12, the second gear 15 rotates and drives the rack 9 to move. The rack 9 drives the adjustment frame 8 to slide in the sedimentation tank, thereby supporting and moving the sediment, and assisting in the discharge of waste liquid and sediment. The adjustable frame 8 can effectively support the sediment by sliding within the sedimentation chamber, preventing sediment accumulation from affecting the discharge effect. Through the cooperation of the motor 11, the first main shaft 10, the second main shaft 16, the first gear 12, the second gear 15, and the rack 9, the adjustable frame 8 can be moved stably to ensure the sediment position adjustment. By setting the hydraulic rod 14 to adjust the position of the movable frame 13, the meshing of the second gear 15 with the rack 9 and the first gear 12 can be flexibly controlled to adapt to different working conditions.

[0024] In a further preferred embodiment of the present invention, a first stirring rod 19 extending outside the regulating box 2 is rotatably installed inside the regulating box 2. A metal pipe 20 is rotatably installed inside the fermentation chamber. An external pipe 21 is installed on the metal pipe 20 through a rotary connector. The metal pipe 20 and the external pipe 21 are used to provide a fermentation liquid addition channel and an aeration channel. A first bevel gear 22 is fixed on both the first stirring rod 19 and the metal pipe 20. The two first bevel gears 22 mesh for transmission. The metal pipe 20 is provided with stirring blades 23 and branch pipes 24. The branch pipes 24 are arranged in groups and are located above and below the stirring blades 23 respectively. A regulating valve 25 is provided on the metal pipe 20 for adjusting the fermentation liquid discharge channel. A second chain drive group 26 for transmission is provided between the first stirring rod 19 and the first main shaft 10.

[0025] In this embodiment, during the treatment of marigold processing waste liquid, the motor 11 drives the first main shaft 10 to rotate, and through the transmission of the second chain drive group 26, drives the first stirring rod 19 to rotate in the regulating tank 2, stirring the waste liquid undergoing pH adjustment in the regulating tank 2, so that the regulating liquid and the waste liquid are fully mixed. At the same time, since the first stirring rod 19 and the metal tube 20 are both fixed with the first bevel gear 22 and the two mesh with each other, the rotation of the first stirring rod 19 will drive the metal tube 20 to rotate in the fermentation chamber. When the metal tube 20 rotates, the stirring blades 23 on it stir the sediment in the fermentation chamber, making the fermentation process more uniform. Fermentation liquid is added into the metal tube 20 through the external pipe 21, and the fermentation liquid is discharged through the branch pipe 24 and evenly distributed in different positions in the fermentation chamber. In addition, when aeration is required, the external pipe 21 can also be used as an aeration channel to introduce air into the fermentation chamber. By setting the first stirring rod 19 to stir in the regulating tank 2, the waste liquid and the regulating liquid can be quickly and fully mixed, improving the pH adjustment efficiency and ensuring that the waste liquid is in a suitable acid-base environment for subsequent treatment. The metal pipe 20 rotates in the fermentation chamber, and the stirring blade 23 on it can evenly stir the precipitate, promote the uniform fermentation reaction, and improve the fermentation effect. The external pipe 21 works in conjunction with the metal pipe 20 to add fermentation liquid and achieve aeration, meeting the needs of the fermentation process for substances and oxygen.

[0026] In a further preferred embodiment of the present invention, a support frame 27 is fixed to the top of the box 1, and a sliding plate 28 connected to the rack 9 is slidably mounted on the support frame 27 to limit the movement path of the rack 9. A cylinder 29 is fixed on the support frame 27, and a first spring 30 is installed inside the cylinder 29. A pin 31 that can extend into the sliding plate 28 to lock the height of the rack 9 for later discharge of sediment is installed on the first spring 30. A guide 32 is provided inside the first spring 30 to limit the extension path of the first spring 30.

[0027] In this embodiment, when the marigold processing waste liquid treatment device is operating normally, the pin 31 extends into the slide plate 28 under the action of the first spring 30, locking the relative position of the slide plate 28 and the rack 9, thereby fixing the height of the rack 9. At this time, the adjusting frame 8 is in a stable state, supporting the sediment in the sedimentation chamber. By setting the support frame 27 and the slide plate 28 together, a stable sliding path is provided for the rack 9, ensuring that the rack 9 will not deviate during movement, thereby improving the efficiency and quality of sediment discharge. By setting the cylinder 29, the first spring 30 and the pin 31, the height of the rack 9 can be easily and quickly locked and unlocked. It is locked during normal material discharge to prevent the adjustment frame 8 from moving accidentally.

[0028] In a further preferred embodiment of the present invention, the cylinder 29, the first spring 30, the pin 31 and the guide frame 32 are all arranged in groups, and iron blocks 33 are fixed on both guide frames 32. A first electromagnet 34 for attracting the iron blocks 33 is fixed inside both cylinders 29 to assist in locking the rack 9.

[0029] In this embodiment, when the marigold processing waste liquid treatment device is operating normally and the rack 9 needs to be kept locked, the first electromagnet 34 is de-energized. At this time, the first spring 30 inside the cylinder 29 is in a stable extended state, and the pin 31 extends steadily into the slide plate 28 under the action of the first spring 30, thereby locking the height of the rack 9 and making the adjusting frame 8 stably support the sediment in the sedimentation chamber. When it is necessary to release the lock on the rack 9, the first electromagnet 34 is energized to attract the iron block 33, and the pin 31 is pulled out from the slide plate 28, releasing the lock on the slide plate 28 and the rack 9. The combination of the cylinder 29, the first spring 30, the pin 31, and the guide frame 32 allows for locking of the slide plate 28 and the rack 9 from multiple points, enhancing the stability and reliability of the locking and preventing the adjustment frame 8 from moving unexpectedly during device operation. The cooperation between the iron block 33 and the first electromagnet 34 provides a convenient auxiliary means for the locking and unlocking process. The magnetism of the first electromagnet 34 can be controlled by energizing and de-energizing, thereby achieving rapid adsorption or release of the iron block 33 and making the insertion and removal of the pin 31 easier.

[0030] In a further preferred embodiment of the present invention, an isolation plate is provided between the sedimentation chamber and the fermentation chamber for isolation. The isolation plate has an opening for providing a sediment transfer channel. A soft silicone sheet for sealing the opening is installed inside the sedimentation chamber. An elastic skeleton is provided inside the soft silicone sheet. A group of threaded rods 35 are rotatably installed inside the box body 1. The same scraper 36 is threadedly fitted on the outside of two threaded rods 35. The bottom of the scraper 36 can contact the bottom inner wall of the adjusting frame 8 to assist in scraping off the sediment.

[0031] In this embodiment, during the treatment of marigold processing waste liquid, after the waste liquid in the sedimentation chamber settles, the sediment accumulates on the regulating frame 8. When the sediment is pushed towards the opening on the isolation plate by the component (rotating the threaded rods 35 arranged in groups inside the box 1, the rotation of the threaded rods 35 will drive the scraper 36 to move along the length direction of the threaded rods 35, and the bottom of the scraper 36 will contact the bottom inner wall of the regulating frame 8, and the regulating frame 8 can be pushed away during the movement), the sediment squeezes the soft silicone sheet, and the elastic skeleton inside the soft silicone sheet deforms, causing the soft silicone sheet to open the opening, and the sediment can enter the fermentation chamber through the opening; By setting up an isolation plate, the sedimentation chamber and the fermentation chamber can be effectively separated, avoiding mutual interference between the substances in the two chambers and ensuring that the sedimentation and fermentation processes proceed independently and stably. The soft silicone sheet can ensure that the opening can be opened smoothly when the sediment passes through normally, and can also automatically close the opening when there is no external force, which can reduce gas exchange between the sedimentation chamber and the fermentation chamber and maintain the environmental stability in their respective chambers. The set of threaded rods 35 and scrapers 36 can efficiently scrape off the sediment on the bottom inner wall of the adjusting frame 8, avoiding sediment residue from affecting the subsequent sedimentation effect.

[0032] In a further preferred embodiment of the present invention, two mounting brackets 37 are fixed on the outer wall of the housing 1, and a connecting shaft 38 is rotatably mounted on each of the two mounting brackets 37. A connection structure for transmission is provided between the two connecting shafts 38 and the two threaded rods 35. A third chain drive group 39 is provided on the first main shaft 10 and the second main shaft 16. The two third chain drive groups 39 are respectively connected to the two connecting shafts 38 for transmission.

[0033] In this embodiment, when the device is running, the first main shaft 10 and the second main shaft 16 start to rotate under their respective power drives. Since the first main shaft 10 and the second main shaft 16 are each provided with a third chain drive group 39, and the two third chain drive groups 39 are respectively connected to the two connecting shafts 38, the rotation of the first main shaft 10 and the second main shaft 16 will transmit power to the connecting shafts 38 through the third chain drive group 39, so that the connecting shafts 38 rotate on the mounting frame 37. Since there is a connection structure for transmission between the two connecting shafts 38 and the two threaded rods 35, the rotation of the connecting shafts 38 will further drive the threaded rods 35 to rotate through the connection structure. When the threaded rods 35 rotate, the scraper 36 that is threaded with the threaded rods 35 will move along the length direction of the threaded rods 35, thereby realizing the scraping operation of the sediment at the bottom of the adjusting frame 8. By setting up the mounting bracket 37, connecting shaft 38, and third chain drive group 39, a high-efficiency transmission system is constructed, which can reasonably distribute and transmit the power of the first main shaft 10 and the second main shaft 16 to the threaded rod 35, so that the scraper 36 can work normally without the need for an additional power source to drive the threaded rod 35, simplifying the structure of the device and reducing energy consumption and cost.

[0034] In a further preferred embodiment of the present invention, the connecting structure includes a limiting block 40 fixed on the connecting shaft 38, a connecting plate 41 mounted on the threaded rod 35, a second spring 42 fixed on the connecting plate 41, a movable plate 43 mounted on the second spring 42, and a limiting cylinder 44 fixed on the movable plate 43 and capable of being sleeved outside the limiting block 40. The limiting block 40 is a polygonal prism, and the limiting block 40 slides in contact with the inner wall of the limiting cylinder 44.

[0035] In this embodiment, during the operation of the marigold processing waste liquid treatment device, when the connecting shaft 38 rotates on the mounting frame 37, the limiting block 40 will rotate synchronously with the connecting shaft 38 because the limiting block 40 is fixed on the connecting shaft 38. In the initial state, the second spring 42 is in the natural state, and the limiting cylinder 44 on the movable plate 43 is in a dockable state with the limiting block 40. As the connecting shaft 38 rotates, the corners of the polygonal prism of the limiting block 40 will gradually approach and enter the limiting cylinder 44. Since the limiting block 40 slides in contact with the inner wall of the limiting cylinder 44, the rotation of the limiting block 40 will drive the limiting cylinder 44 to rotate. The sliding contact between the limiting block 40 and the limiting cylinder 44 enables stable transmission between the connecting shaft 38 and the threaded rod 35. The use of the multi-faceted prism limiting block 40 ensures stable torque transmission during transmission, guaranteeing that the threaded rod 35 rotates in the predetermined direction and speed, thereby driving the scraper 36 to work normally and effectively scraping away the sediment at the bottom of the adjusting frame 8.

[0036] In a further preferred embodiment of the present invention, the second spring 42 is provided with a guide rod 45 for limiting the extension and retraction path of the second spring 42, the connecting plate 41 is equipped with a second electromagnet 46, the movable plate 43 and the limiting cylinder 44 are both made of iron, and the movable plate 43 can be attracted to the second electromagnet 46 to adjust the connection state of the limiting block 40 and the limiting cylinder 44.

[0037] In this embodiment, when the device is operating normally, the second electromagnet 46 is de-energized, and the movable plate 43 and the limiting cylinder 44 are not affected by its adsorption force. At this time, the connecting shaft 38 rotates, driving the limiting block 40 to rotate. The limiting block 40 transmits power to the limiting cylinder 44 by sliding contact with the inner wall of the limiting cylinder 44, thereby causing the threaded rod 35 to rotate and driving the scraper 36 to scrape off the sediment. When it is necessary to disconnect the connection between the limiting block 40 and the limiting cylinder 44, the second electromagnet 46 is energized. The second electromagnet 46 generates magnetism and attracts the iron movable plate 43 and the limiting cylinder 44, causing the limiting cylinder 44 to separate from the limiting block 40. At this time, the rotation of the connecting shaft 38 no longer drives the threaded rod 35 to rotate. By setting the guide rod 45, the extension and retraction path of the second spring 42 is effectively limited, preventing the second spring 42 from bending or shifting during the extension and retraction process, ensuring that the movable plate 43 can move smoothly, thereby ensuring stable and reliable transmission between the limit block 40 and the limit cylinder 44. The second electromagnet 46 cooperates with the iron movable plate 43 and the limit cylinder 44, providing a convenient way to adjust the connection state of the limit block 40 and the limit cylinder 44. The connection and separation can be quickly realized through simple power-on and power-off operations, which facilitates the switching of the equipment between normal operation and special working conditions, and improves the operational flexibility and maintainability of the equipment.

[0038] In a further preferred embodiment of the present invention, a U-shaped plate 47 is installed at the bottom of the housing 1, and an outer cylinder 48 rotatably connected to the housing 1 and extending into the housing 1 is rotatably mounted on the U-shaped plate 47. A spline rod 49 is slidably mounted inside the outer cylinder 48, and a second stirring rod 50 for mixing flocculant and waste liquid is fixed on the spline rod 49 and rotatably connected to the adjusting frame 8. A drive shaft 51 is rotatably mounted on the U-shaped plate 47, and a second bevel gear 52 is installed on both the drive shaft 51 and the outer cylinder 48. The two second bevel gears 52 mesh with each other, and a fourth chain drive group 53 for transmission is provided between the drive shaft 51 and any one of the connecting shafts 38.

[0039] In this embodiment, the connecting shaft 38 rotates under power drive. Since a fourth chain drive group 53 is provided between the transmission shaft 51 and any one of the connecting shafts 38, the rotation of the connecting shaft 38 will drive the transmission shaft 51 to rotate through the fourth chain drive group 53. The rotation of the transmission shaft 51 will drive the outer cylinder 48 to rotate on the U-shaped plate 47 and the box 1 through the meshing transmission of the second bevel gear 52. When the outer cylinder 48 rotates, it will drive the spline rod 49 and the second stirring rod 50 to rotate. The rotation of the second stirring rod 50 can mix and stir the flocculant and waste liquid in the box 1 to promote the flocculation reaction. By setting up a fourth chain drive group 53, a drive shaft 51, and two meshing second bevel gears 52, a high-efficiency transmission system is constructed, which transmits the power of the connecting shaft 38 to the outer cylinder 48, thereby driving the second stirring rod 50 to rotate, realizing the mixing and stirring function of flocculant and waste liquid. The sliding fit between the spline rod 49 and the outer cylinder 48 allows the second stirring rod 50 to not only rotate with the outer cylinder 48 for stirring, but also to adapt to the movement of the adjusting frame 8, ensuring the stability and continuity of the stirring process.

[0040] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, a drain pipe 54 for discharging waste liquid after flocculation and sedimentation is provided on the side of the sedimentation tank away from the fermentation tank. A baffle 55 is fixed on the drain pipe 54, and a filter screen cylinder 56 is detachably installed on the drain pipe 54. A shell 57 is threaded on the drain pipe 54 and sleeved on the filter screen cylinder 56. The shell 57 can contact the baffle 55, and a conduit 58 is provided on the shell 57 for providing a waste liquid output channel.

[0041] In this embodiment, after the waste liquid completes the flocculation and sedimentation process, a relatively clear upper layer of waste liquid and a lower layer of sediment are formed in the sedimentation tank. When it is necessary to discharge the upper layer of waste liquid, since the drain pipe 54 is located on the side of the sedimentation tank away from the fermentation tank, the waste liquid will naturally flow to the drain pipe 54. At this time, the waste liquid is filtered twice by the filter screen 56 to prevent the sediment from being discharged together. The filter cartridge 56 can be removed by rotating the outer casing 57, which exposes it and facilitates cleaning and maintenance. This prevents the filter cartridge 56 from becoming clogged or damaged due to long-term use, thus ensuring smooth drainage.

[0042] In another embodiment of the present invention, a clear liquid pipe 59 extending to the outside of the housing 1 is installed on the top of the scraper 36. The clear liquid pipe 59 is provided with a plurality of nozzles 60. The clear liquid pipe 59, in conjunction with the nozzles 60, is used to introduce clear water to rinse the adjusting frame 8. Two mounting plates 61 are installed on the outer wall of the housing 1. Guide wheels 62 are rotatably mounted on both mounting plates 61 via a rotating shaft. The two guide wheels 62 cooperate to clamp the clear liquid pipe 59. The clear liquid pipe 59 is provided with an elastic tube section. Both mounting plates 61 are provided with coil springs 63 connected to the rotating shaft to assist the clear liquid pipe 59 in discharging from the housing 1.

[0043] In this embodiment, when the scraper 36 moves under the drive of the threaded rod 35 to scrape off the sediment, clean water is introduced into the clean liquid pipe 59. The clean water is sprayed out through multiple nozzles 60 on the clean liquid pipe 59 to thoroughly rinse the adjusting frame 8. During the rinsing process, the elastic pipe section can deform to adapt to the movement of the scraper 36. At the same time, when the clean liquid pipe 59 is subjected to external force and moves out of the box 1, the coil spring 63 is stretched to generate elastic force. When the rinsing is completed or the external force disappears (the scraper 36 returns to its original position), the elastic force of the coil spring 63 will assist the clean liquid pipe 59 to return to its original position and discharge the excess part outside the box 1. By setting up a clear liquid pipe 59 in conjunction with a spray nozzle 60, clear water can be sprayed onto the regulating frame 8 to effectively rinse the regulating frame 8, remove residual sediment and impurities, ensure the cleanliness of the regulating frame 8, and avoid affecting the subsequent waste liquid treatment effect. The guide wheel 62 clamps and guides the clear liquid pipe 59, keeping it stable during movement without shaking or deviation. The coil spring 63 enables the clear liquid pipe 59 to automatically reset, reducing the trouble of manual operation.

[0044] In another embodiment of the present invention, the fermentation chamber is provided with a filter plate 64 for secondary filtration of precipitates, and a three-way pipe 65 for outputting waste liquid is provided between the sedimentation chamber and the fermentation chamber, and a three-way valve for adjusting the opening and closing of the pipe is provided on the three-way pipe 65.

[0045] In this embodiment, when there is waste liquid at the bottom of the regulating rack 8 that is inconvenient to discharge, the waste liquid can be discharged by operating the three-way valve. At the same time, solid impurities containing waste liquid entering the fermentation chamber will be filtered by the filter screen 64 and then discharged through the three-way pipe 65. By setting up a three-way pipe 65 and a three-way valve, when there is waste liquid at the bottom of the regulating frame 8 that is inconvenient to discharge, the waste liquid can be discharged by operating the three-way valve. By setting up a filter screen plate 64, solid impurities containing waste liquid entering the fermentation chamber can be filtered before being discharged through the three-way pipe 65, which facilitates waste liquid discharge and impurity filtration.

[0046] In another embodiment of the present invention, the fermentation chamber is provided with an inclined hopper 66 on the side away from the sedimentation chamber for providing a discharge channel. A protective cover 67 for sealing the inclined hopper 66 is detachably installed on the inclined hopper 66 by fixing bolts. A blocking block 68 extending into the inclined hopper 66 is installed on the protective cover 67. A level gauge for monitoring the liquid level is provided in the sedimentation chamber to prevent waste liquid from entering the fermentation chamber when the liquid level is higher than the opening.

[0047] In this embodiment, during the operation of the device, the inclined hopper 66 serves as a feeding channel, through which personnel can remove the fermented material. When feeding is not required, the protective cover 67 is installed on the inclined hopper 66 by fixing bolts. At this time, the block 68 installed on the protective cover 67 and extending into the inclined hopper 66 will seal the inclined hopper 66 to prevent material leakage and the entry of external impurities. At the same time, the level gauge installed in the sedimentation chamber monitors the liquid level of the waste liquid in the sedimentation chamber in real time. When the waste liquid level approaches the opening at the connection between the sedimentation chamber and the fermentation chamber, the level gauge sends a signal to open the drainage channel. The inclined bucket 66 facilitates the discharge of processed materials, and the liquid level gauge can monitor the waste liquid level in the sedimentation tank in real time, issuing timely instructions to prevent abnormal waste liquid from entering the fermentation tank, thus ensuring that the sedimentation tank and fermentation tank operate independently and stably.

[0048] In summary, compared with related technologies, this device adjusts the pH value of the waste liquid by setting up a regulating tank 2, a feeding hopper 4, and a pH detector, creating favorable conditions for flocculation and sedimentation and improving the sedimentation effect. By setting up a regulating mechanism to assist in the discharge of waste liquid and sediment, it reduces labor intensity, eliminates safety hazards, maintains equipment processing capacity, and reduces environmental pollution. The first stirring rod 19 can fully mix the waste liquid and the regulating liquid, and the metal pipe 20 can promote uniform fermentation while meeting the fermentation material and oxygen requirements.

[0049] It is worth noting that all circuits, electronic components, and modules involved in this invention are existing technologies (the electric telescopic rod 6 can be a DT2000-500 electric push rod, the motor 11 can be a Lenze MCS synchronous servo motor, the hydraulic rod 14 can be an EMG electric hydraulic actuator, and the level gauge can be a Hongrun NHR-LC series; all of the above electronic components can be replaced by electronic components with the same function but different models). Those skilled in the art can fully implement these technologies, so there is no need to elaborate further. The content protected by this invention does not involve improvements to software and methods. This solution also includes an electrical control cabinet, which is installed on the equipment. During use, each electrical device can be started and operated separately through the electrical control cabinet. The power connection method of each electrical device is an existing mature technology, which is well known to those skilled in the art, and will not be elaborated further here.

[0050] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A multi-stage treatment device for marigold processing wastewater, characterized in that, include: The box body contains a sedimentation chamber for providing space for waste liquid flocculation and sedimentation processing, and a fermentation chamber for providing space for sediment fermentation. A regulating box is fixed on the top of the box to provide space for adjusting the pH value of the waste liquid. The top of the regulating box is provided with a feeding hopper for providing a channel for adding pH value adjusting liquid. A pH detector for detecting the pH value of the waste liquid is provided inside the regulating box. A waste liquid pipe installed on the regulating box to provide a waste liquid addition channel; A connecting pipe is installed between the regulating tank and the tank body, the connecting pipe extends into the sedimentation chamber, an electric telescopic rod is hinged to the top inner wall of the tank body, the electric telescopic rod is covered with a retractable rubber protective sleeve for isolating waste liquid, a plug plate for sealing the connecting pipe is hinged to the output rod of the electric telescopic rod, and the plug plate is hinged to the top inner wall of the tank body; An adjustment mechanism is provided on the box body to assist in the discharge of waste liquid and precipitates after flocculation treatment.

2. The multi-stage treatment device for marigold processing waste liquid as described in claim 1, characterized in that, The adjustment mechanism includes an adjustment frame slidably installed inside the sedimentation chamber to support the sediment, a rack fixed to the adjustment frame and extending out of the chamber body, a first main shaft and a second main shaft rotatably installed on the top of the chamber body, a motor fixed to the top of the chamber body, the output shaft of the motor being connected to the flange of the first main shaft, a first gear respectively installed on the first main shaft and the second main shaft, a movable frame slidably installed on the top of the chamber body and arranged in a group, multiple hydraulic rods fixed to the top of the chamber body for adjusting the positions of the two movable frames, a second gear rotatably installed on the movable frame and meshing with the rack and the first gear for transmission, a support shaft rotatably installed on the top of the chamber body, a first chain drive assembly for hydraulic transmission between the support shaft and the first main shaft, and transmission gears installed on both the support shaft and the second main shaft, with the two transmission gears meshing for transmission.

3. The multi-stage treatment device for marigold processing waste liquid as described in claim 2, characterized in that, A first stirring rod extending outside the regulating box is rotatably installed inside the regulating box. A metal pipe is rotatably installed inside the fermentation chamber. An external connecting pipe is installed on the metal pipe via a rotary connector. The metal pipe and the external connecting pipe are used to provide a fermentation broth addition channel and an aeration channel. A first bevel gear is fixed on both the first stirring rod and the metal pipe. Two first bevel gears mesh for transmission. The metal pipe is provided with stirring blades and branch pipes. The branch pipes are arranged in groups and are located above and below the stirring blades respectively. A regulating valve is provided on the metal pipe for adjusting the fermentation broth discharge channel. A second chain drive group is provided between the first stirring rod and the first main shaft for transmission.

4. The multi-stage treatment device for marigold processing waste liquid as described in claim 2, characterized in that, A support frame is fixed to the top of the box, and a sliding plate connected to the rack is slidably installed on the support frame to limit the movement path of the rack. A cylinder is fixed on the support frame, and a first spring is installed inside the cylinder. A pin that can extend into the sliding plate to lock the height of the rack so as to discharge sediment later is installed on the first spring. A guide is provided inside the first spring to limit the extension path of the first spring.

5. The multi-stage treatment device for marigold processing waste liquid as described in claim 4, characterized in that, The cylinder, the first spring, the pin, and the guide are all arranged in groups. Iron blocks are fixed on both guides, and first electromagnets for attracting the iron blocks are fixed in both cylinders to assist in locking the rack.

6. The multi-stage treatment device for marigold processing waste liquid as described in claim 2, characterized in that, An isolation plate is provided between the sedimentation chamber and the fermentation chamber for isolation. The isolation plate has an opening for providing a sediment transfer channel. A soft silicone sheet for sealing the opening is installed inside the sedimentation chamber. An elastic skeleton is provided inside the soft silicone sheet. A group of threaded rods are rotatably installed inside the chamber. The same scraper is threaded onto the outside of two of the threaded rods. The bottom of the scraper can contact the bottom inner wall of the adjusting frame to assist in scraping off the sediment.

7. The multi-stage treatment device for marigold processing waste liquid as described in claim 6, characterized in that, Two mounting brackets are fixed on the outer wall of the housing. A connecting shaft is rotatably mounted on each of the two mounting brackets. A transmission connection structure is provided between the two connecting shafts and the two threaded rods. A third chain drive group is provided on both the first main shaft and the second main shaft. The two third chain drive groups are respectively connected to the two connecting shafts for transmission.

8. The multi-stage treatment device for marigold processing waste liquid as described in claim 7, characterized in that, The connecting structure includes a limiting block fixed on the connecting shaft, a connecting plate mounted on the threaded rod, a second spring fixed on the connecting plate, a movable plate mounted on the second spring, and a limiting cylinder fixed on the movable plate and capable of being sleeved outside the limiting block. The limiting block is a polygonal prism, and the limiting block slides in contact with the inner wall of the limiting cylinder.

9. The multi-stage treatment device for marigold processing waste liquid as described in claim 8, characterized in that, The second spring has a guide rod inside for limiting the extension and retraction path of the second spring. The connecting plate is equipped with a second electromagnet. The movable plate and the limiting cylinder are both made of iron. The movable plate can be attracted to the second electromagnet to adjust the connection state of the limiting block and the limiting cylinder.

10. The multi-stage treatment device for marigold processing waste liquid as described in claim 7, characterized in that, A U-shaped plate is installed at the bottom of the box. An outer cylinder, which is rotatably connected to the box and extends into the box, is rotatably installed on the U-shaped plate. A spline rod is slidably installed inside the outer cylinder. A second stirring rod, which is rotatably connected to the adjusting frame for mixing flocculant and waste liquid, is fixed on the spline rod. A drive shaft is rotatably installed on the U-shaped plate. A second bevel gear is installed on both the drive shaft and the outer cylinder. The two second bevel gears mesh with each other. A fourth chain drive assembly for transmission is provided between the drive shaft and any one of the connecting shafts.

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