A multi-stage processing device for chemical aid preparation wastewater and a method thereof

Abstract

The application belongs to the technical field of chemical additive wastewater treatment, and is especially a multi-stage treatment device and method for chemical additive preparation wastewater, which comprises a treatment box main body, the inner wall of which is provided with a partition plate one, a partition plate two and a partition plate three from top to bottom, respectively, a water inlet cavity is formed between the partition plate one and the inner top wall of the treatment box main body, an oil scraping cavity is formed between the partition plate one and the partition plate two, a sedimentation cavity is formed between the partition plate two and the partition plate three, an oil storage cavity is formed between the partition plate three and the inner bottom wall of the treatment box main body, and a water guide pipe one is installed at the partition plate one; by arranging the partition plate one, the partition plate two and the partition plate three from top to bottom in the treatment box main body, the water inlet cavity, the oil scraping cavity, the sedimentation cavity and the oil storage cavity are formed, the chambers are clearly divided, and the water inlet, oil scraping, sedimentation and residue discharge steps are completed in turn, so that the oil stains and impurities in the wastewater are effectively separated, and the wastewater treatment effect is improved.

Description

Technical Field

[0001] This invention relates to the field of chemical auxiliary wastewater treatment technology, and in particular to a multi-stage treatment device and method for chemical auxiliary preparation wastewater. Background Technology

[0002] Chemical auxiliaries, as indispensable key materials in modern industrial production, are widely used in rubber, plastics, coatings, oil extraction, and many other fields. With the rapid development of global industry, the production scale of chemical auxiliaries is constantly expanding, and the wastewater problems generated during their preparation are becoming increasingly prominent. Wastewater from chemical auxiliary production is complex in composition, typically containing high concentrations of organic matter, ammonia nitrogen, heavy metal ions, and surfactants, exhibiting significant characteristics such as high pollution, high concentration, recalcitrant degradation, high biotoxicity, and large fluctuations in water quality. For example, the chemical oxygen demand (COD) in rubber auxiliary production wastewater often exceeds 8000 mg / L, and the ammonia nitrogen content often exceeds 1000 mg / L; wastewater discharged from oilfield chemical auxiliary research laboratories contains petroleum derivatives, alkylbenzene sulfonates, polymer monomers, and other recalcitrant organic matter, as well as heavy metal catalysts such as nickel, cobalt, and copper, and even mercury-containing reagents. If this wastewater is discharged directly without effective treatment, it will pose a serious threat to the ecological environment, disrupt the ecological balance of aquatic bodies, affect soil quality, and pose potential hazards to human health through bioaccumulation in the food chain.

[0003] Limitations of physical treatment technologies: Physical treatment technologies such as bar screens, oil separators, sedimentation tanks, and flotation mainly remove suspended solids, grease, and other pollutants from wastewater through physical separation. However, these methods can only achieve preliminary separation of pollutants and cannot effectively remove dissolved organic matter and heavy metal ions from wastewater. For high-concentration, recalcitrant wastewater from the preparation of chemical additives, physical treatment is unlikely to achieve ideal results.

[0004] Costs and secondary pollution issues of chemical treatment technologies: Although chemical treatment technologies such as Fenton oxidation, iron-carbon micro-electrolysis, and ozone oxidation can effectively degrade recalcitrant organic matter by reacting strong oxidizing substances with pollutants in wastewater, these methods usually require a large amount of chemical reagents, resulting in high treatment costs.

[0005] The applicability of biological treatment technology is limited: Biological treatment technology has the advantages of stable treatment effect and low cost, and is widely used in the field of wastewater treatment. However, for wastewater such as wastewater from the preparation of chemical additives, which is high in concentration, difficult to degrade, and highly biotoxic, it is difficult to achieve effective degradation by relying solely on biological treatment technology.

[0006] Currently, many chemical auxiliary agent manufacturers often use generic treatment processes and equipment when treating wastewater, lacking in-depth analysis of the wastewater's characteristics and targeted treatment methods. Different types of chemical auxiliary agent preparation wastewater, produced through different processes, exhibit significant differences in pollutant composition and concentration. Generic treatment solutions are insufficient to meet actual treatment needs, resulting in poor treatment outcomes. Furthermore, most existing wastewater treatment systems lack systematic and holistic considerations; there is a lack of effective coordination and connection between treatment units, failing to fully leverage the advantages of each treatment technology and hindering the achievement of efficient and stable wastewater treatment. Summary of the Invention

[0007] To address the aforementioned problems, this invention proposes a multi-stage treatment device and method for wastewater from the preparation of chemical auxiliaries, thereby more accurately solving the problems mentioned in the background art.

[0008] This invention is achieved through the following technical solution:

[0009] This invention proposes a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, comprising a treatment tank body. From top to bottom, the inner wall of the treatment tank body is provided with three dividing plates: a first dividing plate, a second dividing plate, and a third dividing plate. A water inlet cavity is formed between the first dividing plate and the inner top wall of the treatment tank body; an oil skimming cavity is formed between the first and second dividing plates; a sedimentation cavity is formed between the second and third dividing plates; and an oil storage cavity is formed between the third dividing plate and the inner bottom wall of the treatment tank body. A first water guide pipe is installed at the first dividing plate, a second water guide pipe is installed at the second dividing plate, and a third water guide pipe is installed at the third dividing plate. The first and second water guide pipes are used to transport the treated water to the next step, and the third water guide pipe is used to discharge the sediment outside the treatment tank body. Inside the treatment tank body, from top to bottom, are treatment components coaxial with the treatment tank body. The processing assembly includes a drive rod extending from the top of the processing tank body into it. A hollow cylinder is located at the bottom of the drive rod, and a hollow cylinder is slidably connected to the surface of the hollow cylinder. The drive rod is rotatably connected to the first dividing plate and the hollow cylinder is rotatably connected to the third dividing plate via bearings. The first hollow cylinder and the second dividing plate are connected through each other. A strip rod is installed at the top of the first hollow cylinder, and a strip groove is formed at the bottom of the drive rod, into which the strip rod is inserted. An impeller is installed on the outer peripheral wall of the drive rod to drive its rotation. An oil scraper is installed on the outer wall of the first hollow cylinder to scrape away oil stains between the first and second dividing plates. A slag removal section is installed on the outer peripheral wall of the second hollow cylinder to push away the sludge deposited on the third dividing plate.

[0010] Preferably, a liquid inlet hopper is installed on the top of the main body of the treatment tank, and a filter plate is installed on the top of the liquid inlet hopper for water injection and filtration. A drain pipe and an oil drain pipe are installed on the outer wall of the main body of the treatment tank. The drain pipe is located between the second and third dividing plates for discharging the settled water, and the oil drain pipe is located above the inner bottom wall of the main body of the treatment tank for discharging oil.

[0011] Preferably, a sealing part one is provided above the second dividing plate, the sealing part one is used to block the second water guide pipe, the sealing part one is provided at the bottom of the oil scraper and is used to support the oil scraper, and a sealing part two is provided at one part of the dividing plate, the sealing part two is used to block one part of the water guide pipe.

[0012] Preferably, the sealing part one includes a floating block one disposed at the dividing plate two and floating on the water surface. An installation rod is installed between the floating blocks one. The installation rod is rotatably connected to the hollow cylinder two via a bearing. A floating ring is installed on the surface of the floating block one. The floating ring is used to support the hollow cylinder two. A sealing head one is provided at the bottom of the floating block one. The sealing head one is inserted into the water guide pipe two. A connecting rope one is connected between the floating block one and the sealing head one. The connecting rope one is used to pull the sealing head one out of the water guide pipe two after the floating block one moves to a suitable height.

[0013] Preferably, the second sealing part includes a second floating block disposed above the first dividing plate. The bottom of the second floating block is provided with a second connecting rope, which is inserted into the first water guide pipe. A second sealing head is connected between the second floating block and the second connecting rope. The second sealing head is used to pull the second connecting rope out of the first water guide pipe after the second floating block moves to a suitable height. A sliding rod is installed on the inner bottom wall of the main body of the treatment tank. The sliding rod passes through the second floating block and is used to limit the movement of the second floating block.

[0014] Preferably, a temporary storage tank is installed at the top of the outer peripheral wall of the main body of the treatment tank. The temporary storage tank is used to temporarily store the wastewater after it has been filtered at the liquid inlet. The main body of the treatment tank has multiple water filter holes at the temporary storage tank. The water filter holes are used for secondary filtration of wastewater and impurities. A pusher part that can rotate with the drive rod is provided at the temporary storage tank. The pusher part is used to push out the dirt that exists in the temporary storage tank after filtration.

[0015] Preferably, the pushing part includes a baffle plate that slides in a temporary storage tank, an arc-shaped guide plate is installed on the inner wall of the baffle plate, the arc-shaped guide plate is used to scrape up the stains, and a connecting rod is installed on the outer wall of the baffle plate, the connecting rod being connected to the drive rod.

[0016] Preferably, a block is installed on the surface of the hollow cylinder 2, the slag removal part includes a drive seat fitted on the surface of the hollow cylinder 2, a slot is opened at the drive seat, the block is inserted into the slot, and a slag pusher is installed on the outer wall of the drive seat.

[0017] Preferably, a sealing part three is provided at the end of the water guide pipe three. The sealing part three is used to seal the water guide pipe three. The sealing part three includes a sealing disc provided at the end face of the water guide pipe three. A rubber head is installed on one side of the sealing disc. The rubber head is inserted into the water guide pipe three. An installation ring is installed on the outer wall of the water guide pipe three. A damper is installed between the installation ring and the sealing disc.

[0018] A method of using a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries includes the following steps:

[0019] Wastewater from the preparation of chemical additives is injected into the main body of the treatment tank through the inlet hopper. The filter plate at the top of the inlet hopper performs preliminary filtration of the wastewater, intercepting larger particulate impurities. The wastewater after preliminary filtration flows into the temporary storage tank for temporary storage. Multiple water filter holes in the main body of the treatment tank, located in the temporary storage tank, perform secondary filtration of the wastewater and impurities, further separating fine impurities from the wastewater, allowing the wastewater to enter the water inlet chamber inside the main body of the treatment tank (between the first partition plate and the inner top wall of the main body of the treatment tank).

[0020] Wastewater flow impacts the impeller, causing the drive rod to rotate around the bearing. When the drive rod rotates, because the strip rod is inserted into the strip groove, hollow cylinder one rotates synchronously with the drive rod. Hollow cylinder two is slidably connected to the surface of hollow cylinder one, and hollow cylinder two is rotatably connected to the mounting rod through the bearing, so that hollow cylinder two can rotate relative to hollow cylinder one and can move up and down with hollow cylinder one.

[0021] The rotation of the hollow cylinder drives the oil scraper on its outer wall to rotate, scraping away the oil on the surface of the wastewater entering the oil scraping chamber. In the initial state, the floating block 2 of the sealing part 2 is above the dividing plate 1, and the sealing head 2 keeps the connecting rope 2 inside the water guide pipe 1, sealing the water guide pipe 1. The floating block 1 of the sealing part 1 floats on the water surface above the dividing plate 2, and the sealing head 1 is inserted into the water guide pipe 2, sealing the water guide pipe 2. As the oil scraper continues to rotate and scrape the oil, the oil on the water surface in the oil scraping chamber decreases, and the water level drops. The floating block 1 drops with the water level. When it drops to a suitable height, the connecting rope 1 is tightened, pulling the sealing head 1 out of the water guide pipe 2, releasing the seal on the water guide pipe 2. The water treated in the oil scraping chamber enters the sedimentation chamber through the water guide pipe 2.

[0022] After water enters the sedimentation chamber, impurities in the water settle onto the third dividing plate under the action of gravity. When the second hollow cylinder rotates, the slotted block on its surface gets stuck in the slotted groove of the drive seat, which drives the drive seat of the slag removal unit to rotate, and then drives the slag pusher plate to rotate. This pushes the sludge settled on the third dividing plate, preventing the sludge from accumulating and clogging the pores on the third dividing plate or affecting the sedimentation effect. After the water in the sedimentation chamber has settled for a period of time, the water quality becomes relatively clear. The oil collected in the oil storage chamber of the main body of the treatment tank is discharged through the drain pipe set between the second and third dividing plates, and then discharged through the oil drain pipe set above the bottom wall of the main body of the treatment tank.

[0023] Temporary storage tank impurity cleaning: When the drive rod rotates, it drives the baffle plate to slide in the temporary storage tank through the connecting rod. The arc-shaped guide plate on the inner wall of the baffle plate scrapes up the dirt left by the filter in the temporary storage tank and pushes the dirt out of the temporary storage tank as the baffle plate moves. Sediment discharge: When it is necessary to discharge the sediment on the dividing plate three, the resistance of the damper is overcome to pull the sealing plate, so that the rubber head moves out of the water guide pipe three, releasing the blockage of the water guide pipe three. The sediment is discharged to the outside of the treatment tank body through the water guide pipe three.

[0024] Compared with the prior art, the present invention provides a multi-stage treatment device and method for wastewater from the preparation of chemical auxiliaries, which has the following beneficial effects:

[0025] This multi-stage treatment device for wastewater from the preparation of chemical auxiliaries uses three partition plates arranged from top to bottom within the main body of the treatment tank to form an inlet chamber, an oil skimming chamber, a sedimentation chamber, and an oil storage chamber. Each chamber has a clear function and sequentially completes the steps of water intake, oil skimming, sedimentation, and sludge discharge, effectively separating oil and impurities from the wastewater and improving the wastewater treatment effect.

[0026] This multi-stage treatment device for wastewater from the preparation of chemical auxiliaries uses two separate sealing sections: a first sealing section and a second sealing section, each equipped with a floating block. The floating blocks move with the water surface, causing the sealing head to automatically insert into or pull out of the water pipe. This achieves intelligent sealing and opening of the first and second water pipes, ensuring that each treatment stage proceeds in an orderly manner and improving the quality of wastewater treatment.

[0027] This multi-stage treatment device for wastewater from the preparation of chemical auxiliaries uses a sliding baffle plate installed in a temporary storage tank. The baffle plate is connected to a drive rod via a connecting rod. When the drive rod rotates, it causes the baffle plate to slide, pushing out the dirt in the temporary storage tank. This prevents dirt from accumulating and clogging the filter holes, ensuring the continuity and stability of secondary filtration.

[0028] This multi-stage treatment device for wastewater from the preparation of chemical auxiliaries uses a slag removal section with a drive seat that engages with a block on the surface of the second hollow cylinder. When the second hollow cylinder rotates, it drives the drive seat to rotate synchronously, which in turn pushes the sediment at the third dividing plate through the slag pusher plate and discharges it through the third water guide pipe. This simplifies the sediment cleaning process and improves wastewater treatment efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0030] Figure 2 This is a cross-sectional view of the structure of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0031] Figure 3 This is a schematic diagram of the feeding section of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0032] Figure 4 This is a schematic diagram of the sealing section of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0033] Figure 5 This is a bottom view of the structure of a sealing section of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0034] Figure 6 This is a schematic diagram of the slag removal section of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0035] Figure 7 This invention proposes a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries. Figure 2 Enlarged view of region A in the middle;

[0036] Figure 8 This is a schematic diagram of the sealing section three of a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, as proposed in this invention.

[0037] In the diagram: 1. Processing tank body; 11. Liquid inlet hopper; 12. Liquid drain pipe; 13. Oil drain pipe; 14. Slide rod; 15. Temporary storage tank; 16. Filter hole; 2. Processing components; 21. Drive rod; 211. Strip groove; 22. Hollow cylinder one; 23. Hollow cylinder two; 231. I-shaped block; 24. Strip rod; 25. Impeller; 26. Oil scraper; 27. Slag removal section; 271. Drive seat; 272. I-shaped groove; 273. Slag pusher plate; 3. Dividing plate one; 31. Water guide pipe one; 4. 41. Dividing plate 2; 5. Water guide pipe 2; 6. Dividing plate 3; 7. Water guide pipe 3; 8. Sealing part 1; 9. Floating block 1; 10. Mounting rod; 11. Floating ring; 12. Sealing head 1; 13. Connecting rope 1; 14. Sealing part 2; 15. Floating block 2; 16. Connecting rope 2; 17. Sealing head 2; 18. Pushing part; 19. Baffle plate; 10. Arc-shaped guide plate; 11. Connecting rod; 12. Sealing part 3; 13. Sealing disc; 14. Rubber head; 15. Mounting ring; 16. Damper. Detailed Implementation

[0038] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0039] Example

[0040] like Figures 1-8As shown in the figure, an embodiment of the present invention provides a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, comprising a treatment tank body 1 made of stainless steel to ensure its corrosion resistance and structural strength. From top to bottom, three dividing plates 3, 4, and 5 are fixedly installed on the inner wall of the treatment tank body 1. These dividing plates are horizontally arranged and tightly fitted to the inner wall of the treatment tank body 1. A water inlet chamber is formed between the dividing plate 3 and the inner top wall of the treatment tank body 1 to receive the wastewater to be treated; an oil scraping chamber is formed between the dividing plate 3 and the dividing plate 4 to perform oil scraping operations; a sedimentation chamber is formed between the dividing plate 4 and the dividing plate 5 to settle impurities in the wastewater; and an oil storage chamber is formed between the dividing plate 5 and the inner bottom wall of the treatment tank body 1 to store the separated oil. A water guide pipe 31 is installed at the dividing plate 3, a water guide pipe 41 is installed at the dividing plate 4, and a water guide pipe 51 is installed at the dividing plate 5. Water guide pipe 31 and water guide pipe 41 are used to transport the treated water to the next step, while water guide pipe 51 is used to discharge the sediment to the outside of the treatment tank body 1. Inside the treatment tank body 1, from top to bottom, is a treatment assembly 2 coaxial with the treatment tank body 1. The treatment assembly 2 includes a drive rod 21 that passes through the top of the treatment tank body 1 and is rotatably connected to the top of the treatment tank body 1 via bearings. A hollow cylinder 22 is located at the bottom of the drive rod 21, and a hollow cylinder 23 is slidably connected to the surface of the hollow cylinder 22. The drive rod 21 is rotatably connected to the dividing plate 3 via bearings, and the hollow cylinder 23 is rotatably connected to the dividing plate 3 via bearings. The hollow cylinder 22 and the dividing plate 24 are connected through each other, with an appropriate gap between them to ensure smooth rotation of the hollow cylinder 22. A strip rod 24 is installed on the top of the hollow cylinder 22, and a strip groove 211 is opened at the bottom of the drive rod 21. The strip rod 24 is inserted into the strip groove 211, so that the drive rod 21 can drive the hollow cylinder 22 to rotate when it rotates. An impeller 25 is installed on the outer peripheral wall of the drive rod 21. When wastewater flows into the treatment tank body 1, the water flow impacts the impeller 25, driving the drive rod 21 to rotate. An oil scraper 26 is installed on the outer wall of the hollow cylinder 22. The oil scraper 26 is made of rubber and has a certain degree of flexibility. It is used to scrape off the oil between the dividing plate 3 and the dividing plate 4, so that the oil enters the oil storage chamber. A slag removal section 27 is installed on the outer peripheral wall of the hollow cylinder 23. The slag removal section 27 is used to push the sludge settled at the dividing plate 3 5, so that the sludge can be discharged through the water guide pipe 3 51. Through this multi-stage treatment device, multi-stage treatment of wastewater from the preparation of chemical additives can be realized, including water inlet, oil skimming, sedimentation and slag discharge, effectively separating oil and impurities in the wastewater and improving the wastewater treatment effect.

[0041] In this invention, a liquid inlet hopper 11 is installed on the top of the treatment tank body 1. The liquid inlet hopper 11 is made of plastic and has a certain strength and corrosion resistance. A filter plate is installed on the top of the liquid inlet hopper 11. The filter plate has a metal mesh structure and is used for water injection and filtration to prevent larger particles of impurities from entering the treatment tank body 1. A drain pipe 12 and an oil drain pipe 13 are installed on the outer wall of the treatment tank body 1. The drain pipe 12 is located between the second dividing plate 4 and the third dividing plate 5. A valve is installed on the drain pipe 12 to control the discharge of water after sedimentation. The oil drain pipe 13 is located above the inner bottom wall of the treatment tank body 1. A valve is also installed on the oil drain pipe 13 to control the discharge of oil. The wastewater entering the treatment tank body 1 can be initially filtered through the liquid inlet hopper 11 and the filter plate. The arrangement of the drain pipe 12 and the oil drain pipe 13 facilitates the separate discharge of treated water and oil, which is convenient for subsequent treatment and utilization.

[0042] In this invention, a sealing part 6 is provided above the second dividing plate 4. The sealing part 6 is used to block the second water guide pipe 41 to prevent untreated water from flowing out through the second water guide pipe 41 during the oil scraping process. The sealing part 6 is located at the bottom of the oil scraper 26 to support the oil scraper 26 and ensure that the oil scraper 26 can work normally. A sealing part 7 is provided at the second dividing plate 3 to block the first water guide pipe 31 to prevent water from flowing out directly through the first water guide pipe 31 during the water intake stage, which would affect the subsequent treatment effect. The setting of the sealing part 6 and the sealing part 7 can effectively control the water flow direction, ensure the orderly progress of each treatment stage, and improve the wastewater treatment quality.

[0043] In this invention, the sealing part 6 includes a floating block 61 disposed at the dividing plate 4 and floating on the water surface. The floating block 61 is made of lightweight plastic and can float on the water surface. An installation rod 62 is installed between the floating blocks 61. The installation rod 62 is rotatably connected to the hollow cylinder 23 through a bearing, so that the floating blocks 61 can move up and down with the fluctuation of the water surface.

[0044] A floating ring 63 is installed on the surface of the floating block 61. The floating ring 63 is used to support the hollow cylinder 23 and ensure the stability of the hollow cylinder 23. A sealing head 64 is provided at the bottom of the floating block 61. The sealing head 64 is made of rubber and can be tightly inserted into the water guide pipe 41 to seal the water guide pipe 41.

[0045] A connecting rope 65, made of nylon, connects the floating block 61 and the sealing head 64. The rope possesses both strength and flexibility. When the floating block 61 moves to a suitable height, the sealing head 64 is pulled out of the water guide pipe 41 via the connecting rope 65, allowing treated water to flow out through the pipe. The sealing part 6 automatically controls the opening and closing of the sealing head 64 based on the movement of the floating block 61 with the water surface, achieving intelligent sealing and opening of the water guide pipe 41, ensuring the continuity and stability of wastewater treatment.

[0046] In this invention, the sealing part 2 7 includes a floating block 2 71 disposed above the dividing plate 1 3. The floating block 2 71 is also made of lightweight plastic and can float on the water surface. A connecting rope 2 72 is provided at the bottom of the floating block 2 71, and the connecting rope 2 72 is inserted into the water guide pipe 1 31.

[0047] A sealing head 2 73 is connected between the float block 2 71 and the connecting rope 2 72. The sealing head 2 73 is made of rubber and is used to pull the connecting rope 2 72 out of the water guide pipe 1 31 through the sealing head 2 73 after the float block 2 71 moves to a suitable height, so that the water in the water inlet chamber can flow into the oil scraping chamber through the water guide pipe 1 31.

[0048] A sliding rod 14 is installed on the inner bottom wall of the treatment tank body 1. The sliding rod 14 passes through the floating block 71 and is used to limit the floating block 71 to prevent it from shifting when the water surface fluctuates, thus affecting the sealing effect. The sealing part 7 automatically opens the water guide pipe 31 as the floating block 71 rises with the water surface, so that the wastewater can smoothly enter the next treatment stage and ensure the normal operation of wastewater treatment.

[0049] In this invention, a temporary storage tank 15 is installed on the top of the outer peripheral wall of the treatment tank body 1. The temporary storage tank 15 is made of stainless steel and is used to temporarily store the wastewater filtered by the inlet hopper 11. The treatment tank body 1 has multiple filter holes 16 at the temporary storage tank 15. The filter holes 16 are circular and are used for secondary filtration of wastewater and impurities to further remove fine impurities from the wastewater.

[0050] A pusher 8 is provided at the temporary storage tank 15, which can rotate with the drive rod 21. The pusher 8 is used to push out the dirt in the temporary storage tank 15 after filtration, so as to prevent the dirt from accumulating and affecting the filtration effect. The temporary storage tank 15 and the filter hole 16 can perform secondary filtration of wastewater to improve the filtration quality. The pusher 8 can clean the dirt in the temporary storage tank 15 in time to ensure the continuity of filtration.

[0051] In this invention, the pushing part 8 includes a baffle plate 81 that slides within the temporary storage tank 15. The baffle plate 81 is rectangular, made of plastic, and can slide smoothly within the temporary storage tank 15. An arc-shaped guide plate 82 is installed on the inner wall of the baffle plate 81. The arc-shaped guide plate 82 is used to scoop up the stains, making it easier to push the stains out of the temporary storage tank 15.

[0052] A connecting rod 83 is installed on the outer wall of the baffle plate 81. The connecting rod 83 is connected to the drive rod 21. When the drive rod 21 rotates, it drives the connecting rod 83 to rotate, thereby causing the baffle plate 81 to slide in the temporary storage tank 15 to realize the pushing function. The pushing part 8 drives the baffle plate 81 to slide through the rotation of the drive rod 21, pushing out the dirt in the temporary storage tank 15, ensuring the cleanliness of the temporary storage tank 15 and improving the secondary filtration effect.

[0053] In this invention, a rectangular block 231 is installed on the surface of the hollow cylinder 23. The block 231 is fixedly connected to the surface of the hollow cylinder 23. The slag removal unit 27 includes a drive seat 271 fitted onto the surface of the hollow cylinder 23. The drive seat 271 is annular and can slide on the surface of the hollow cylinder 23. A groove 272 is formed in the drive seat 271, and the block 231 is inserted into the groove 272, so that the drive seat 271 can rotate when the hollow cylinder 23 rotates. A slag pusher plate 273 is installed on the outer wall of the drive seat 271. The slag pusher plate 273 is rectangular and is used to push the sediment deposited at the dividing plate 5, allowing it to be discharged through the water pipe 51. The slag removal unit 27, through the cooperation of the block 231 and the groove 272, achieves synchronous rotation of the hollow cylinder 23 and the drive seat 271, thereby driving the slag pusher plate 273 to push the sediment, facilitating the discharge of the sediment.

[0054] In this invention, a sealing part 9 is provided at the end of the water guide pipe 3 51. The sealing part 9 is used to seal the water guide pipe 3 51 to prevent sediment from flowing out of the water guide pipe 3 51 prematurely during the sedimentation stage. The sealing part 3 9 includes a sealing disc 91 disposed at the end face of the water guide pipe 3 51. The sealing disc 91 is circular and made of plastic. A rubber head 92 is installed on one side of the sealing disc 91. The rubber head 92 is inserted into the water guide pipe 3 51 to tightly seal the water guide pipe 3 51. An installation ring 93 is installed on the outer wall of the water guide pipe 3 51. The installation ring 93 is annular and is fixedly connected to the water guide pipe 3 51. A damper 94 is installed between the mounting ring 93 and the sealing disc 91. The damper 94 is a spring damper, which is used to provide a certain resistance to prevent the sealing disc 91 from moving at will and to ensure the sealing effect. The sealing part 9, through the cooperation of the rubber head 92 and the damper 94, can effectively seal the water guide pipe 51. When it is necessary to discharge the sediment, the sealing disc 91 can be opened manually, which is convenient to operate and ensures the normal operation of wastewater treatment.

[0055] A method of using a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries includes the following steps:

[0056] Wastewater from the preparation of chemical additives is injected into the main body of the treatment tank 1 through the inlet hopper 11. The filter plate at the top of the inlet hopper 11 performs preliminary filtration of the wastewater, intercepting larger particulate impurities. The wastewater after preliminary filtration flows into the temporary storage tank 15 for temporary storage. Multiple water filter holes 16 opened at the temporary storage tank 15 in the main body of the treatment tank perform secondary filtration of the wastewater and impurities, further separating fine impurities from the wastewater, so that the wastewater enters between the water inlet chamber partition plate 3 and the inner top wall of the main body of the treatment tank 1.

[0057] Wastewater flow impacts the impeller 25, causing the drive rod 21 to rotate around the bearing. When the drive rod 21 rotates, because the strip rod 24 is inserted into the strip groove 211, the hollow cylinder 1 22 rotates synchronously with the drive rod 21. The hollow cylinder 23 is slidably connected to the surface of the hollow cylinder 1 22, and the hollow cylinder 23 is rotatably connected to the mounting rod 62 through the bearing, so that the hollow cylinder 23 can rotate relative to the hollow cylinder 1 22 and can move up and down with the hollow cylinder 1 22.

[0058] The rotation of the hollow cylinder 22 drives the oil scraper 26 on its outer wall to rotate, scraping off the oil on the surface of the wastewater entering the oil scraping chamber. In the initial state, the floating block 71 of the sealing part 7 is above the dividing plate 3, and the sealing head 73 keeps the connecting rope 72 inside the water pipe 31, sealing the water pipe 31. The floating block 61 of the sealing part 6 floats on the water surface above the dividing plate 4, and the sealing head 64 is inserted into the water pipe 41, sealing the water pipe 41. As the oil scraper 26 continues to rotate and scrape the oil, the oil on the water surface in the oil scraping chamber decreases and the water level drops. The floating block 61 drops with the water level. When it drops to a suitable height, the connecting rope 65 is tightened, pulling the sealing head 64 out of the water pipe 41, releasing the seal on the water pipe 41. The water treated in the oil scraping chamber enters the sedimentation chamber through the water pipe 41.

[0059] After water enters the sedimentation chamber, impurities in the water settle onto the dividing plate 3 5 under the action of gravity. When the hollow cylinder 23 rotates, the slot 231 on its surface gets into the slot 272 of the drive seat 271, which drives the drive seat 271 of the slag removal part 27 to rotate, and then drives the slag pusher plate 273 to rotate, pushing the dirt settled on the dividing plate 3 5 to prevent the dirt from accumulating and clogging the pores on the dividing plate 3 5 or affecting the sedimentation effect. After the water in the sedimentation chamber has settled for a period of time, the water quality is relatively clear. The oil collected in the oil storage chamber of the treatment tank body 1 is discharged through the drain pipe 12 set between the dividing plate 2 4 and the dividing plate 3 5, and discharged through the oil drain pipe 13 set above the bottom wall of the treatment tank body 1.

[0060] Temporary storage tank impurity cleaning: When the drive rod 21 rotates, it drives the baffle plate 81 to slide in the temporary storage tank 15 through the connecting rod 83. The arc-shaped guide plate 82 on the inner wall of the baffle plate 81 scrapes up the dirt left by filtration in the temporary storage tank 15 and pushes the dirt out of the temporary storage tank 15 as the baffle plate 81 moves. Sediment discharge: When it is necessary to discharge the sediment on the dividing plate 3 5, the resistance of the damper 94 is overcome to pull the sealing plate 91, so that the rubber head 92 is moved out of the water guide pipe 3 51, releasing the blockage of the water guide pipe 3 51. The sediment is discharged to the outside of the treatment box body 1 through the water guide pipe 3 51.

[0061] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0062] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries, comprising a treatment tank body (1), characterized in that, The inner wall of the treatment tank body (1) is provided with a first partition plate (3), a second partition plate (4), and a third partition plate (5) from top to bottom. A water inlet cavity is formed between the first partition plate (3) and the inner top wall of the treatment tank body (1), an oil skimming cavity is formed between the first partition plate (3) and the second partition plate (4), a sedimentation cavity is formed between the second partition plate (4) and the third partition plate (5), and an oil storage cavity is formed between the third partition plate (5) and the inner bottom wall of the treatment tank body (1). A water guide pipe (31) is installed at the first partition plate (3). A water guide pipe 2 (41) is installed at the second dividing plate (4), and a water guide pipe 3 (51) is installed at the third dividing plate (5). The first water guide pipe (31) and the second water guide pipe (41) are used to transport the treated water to the next step. The third water guide pipe (51) is used to discharge the sediment to the outside of the treatment tank body (1). The treatment tank body (1) is equipped with a treatment component (2) coaxial with the treatment tank body (1) from top to bottom. The treatment component (2) includes a drive rod (21) that passes through the top of the treatment tank body (1). A hollow cylinder (22) is provided at the bottom of the drive rod (21). A hollow cylinder (23) is slidably connected to the surface of the hollow cylinder (22). The drive rod (21) is rotatably connected to the dividing plate (3) and the hollow cylinder (23) is rotatably connected to the dividing plate (5) through bearings. The hollow cylinder (22) and the dividing plate (24) are connected through each other. A strip rod (24) is installed at the top of the hollow cylinder (22). A strip groove (211) is opened at the bottom of the drive rod (21). The strip rod (24) is inserted into the groove. Inside the strip groove (211), an impeller (25) is installed on the outer peripheral wall of the drive rod (21). The impeller (25) is used to drive the rotation of the drive rod (21). An oil scraper (26) is installed on the outer wall of the hollow cylinder (22). The oil scraper (26) is used to scrape off the oil stains between the dividing plate (3) and the dividing plate (4). A slag removal part (27) is installed on the outer peripheral wall of the hollow cylinder (23). The slag removal part (27) is used to push the stains deposited at the dividing plate (5).

2. The multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 1, characterized in that, The top of the treatment tank body (1) is equipped with a liquid inlet hopper (11), and the top of the liquid inlet hopper (11) is equipped with a filter plate for water injection and filtration. The outer wall of the treatment tank body (1) is equipped with a drain pipe (12) and an oil drain pipe (13). The drain pipe (12) is located between the second dividing plate (4) and the third dividing plate (5) for draining the water after sedimentation. The oil drain pipe (13) is located above the inner bottom wall of the treatment tank body (1) for draining oil.

3. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 1, characterized in that, A sealing part 1 (6) is provided above the second dividing plate (4). The sealing part 1 (6) is used to seal the second water pipe (41). The sealing part 1 (6) is located at the bottom of the oil scraper (26) and is used to support the oil scraper (26). A sealing part 2 (7) is provided at the first dividing plate (3). The sealing part 2 (7) is used to seal the first water pipe (31).

4. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 3, characterized in that, The sealing part 1 (6) includes a floating block 1 (61) set at the dividing plate 2 (4) and floating on the water surface. An installation rod (62) is installed between the floating blocks 1 (61). The installation rod (62) is rotatably connected to the hollow cylinder 2 (23) by a bearing. A floating ring (63) is installed on the surface of the floating block 1 (61). The floating ring (63) is used to support the hollow cylinder 2 (23). A sealing head 1 (64) is set at the bottom of the floating block 1 (61). The sealing head 1 (64) is inserted into the water guide pipe 2 (41). A connecting rope 1 (65) is connected between the floating block 1 (61) and the sealing head 1 (64). The connecting rope 1 (65) is used to pull the sealing head 1 (64) out of the water guide pipe 2 (41) after the floating block 1 (61) moves to a suitable height.

5. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 3, characterized in that, The second sealing part (7) includes a second floating block (71) located above the first dividing plate (3). The bottom of the second floating block (71) is provided with a second connecting rope (72). The second connecting rope (72) is inserted into the first water pipe (31). A second sealing head (73) is connected between the second floating block (71) and the second connecting rope (72). The second sealing head (73) is used to pull the second connecting rope (72) out of the first water pipe (31) through the second sealing head (73) after the second floating block (71) moves to a suitable height. A sliding rod (14) is installed on the inner bottom wall of the main body of the treatment box (1). The sliding rod (14) passes through the second floating block (71) and is used to limit the movement of the second floating block (71).

6. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 1, characterized in that, A temporary storage tank (15) is installed on the top of the outer peripheral wall of the main body (1) of the treatment tank. The temporary storage tank (15) is used to temporarily store the wastewater after it is filtered by the liquid inlet (11). The main body (1) of the treatment tank is provided with a plurality of filter holes (16) at the temporary storage tank (15). The filter holes (16) are used for secondary filtration of wastewater and impurities. A pusher (8) that can rotate with the drive rod (21) is provided at the temporary storage tank (15). The pusher (8) is used to push out the dirt in the temporary storage tank (15) after filtration.

7. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 6, characterized in that, The pushing part (8) includes a baffle plate (81) that slides in a temporary storage tank (15). An arc-shaped guide plate (82) is installed on the inner wall of the baffle plate (81). The arc-shaped guide plate (82) is used to scrape up the stains. A connecting rod (83) is installed on the outer wall of the baffle plate (81). The connecting rod (83) is connected to the drive rod (21).

8. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 1, characterized in that, The surface of the hollow cylinder 2 (23) is fitted with a block (231). The slag removal part (27) includes a drive seat (271) fitted onto the surface of the hollow cylinder 2 (23). A slot (272) is provided at the drive seat (271). The block (231) is inserted into the slot (272). A slag pusher plate (273) is installed on the outer wall of the drive seat (271).

9. A multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claim 1, characterized in that, A sealing part three (9) is provided at the end of the water guide pipe three (51). The sealing part three (9) is used to seal the water guide pipe three (51). The sealing part three (9) includes a sealing disc (91) provided at the end face of the water guide pipe three (51). A rubber head (92) is installed on one side of the sealing disc (91). The rubber head (92) is inserted into the water guide pipe three (51). An installation ring (93) is installed on the outer wall of the water guide pipe three (51). A damper (94) is installed between the installation ring (93) and the sealing disc (91).

10. The method of using a multi-stage treatment device for wastewater from the preparation of chemical auxiliaries according to claims 1-9, characterized in that, Includes the following steps: Wastewater from the preparation of chemical additives is injected into the main body of the treatment tank (1) through the inlet hopper (11). The filter plate at the top of the inlet hopper (11) performs preliminary filtration of the wastewater, intercepting larger particulate impurities. The wastewater after preliminary filtration flows into the temporary storage tank (15) for temporary storage. Multiple water filter holes (16) in the main body of the treatment tank (1) located in the temporary storage tank (15) perform secondary filtration of the wastewater and impurities, further separating fine impurities from the wastewater, so that the wastewater enters the water inlet chamber inside the main body of the treatment tank (1) (between the dividing plate (3) and the inner top wall of the main body of the treatment tank (1)). Wastewater flow impacts the impeller (25), causing the drive rod (21) to rotate around the bearing. When the drive rod (21) rotates, because the strip rod (24) is inserted into the strip groove (211), the hollow cylinder one (22) rotates synchronously with the drive rod (21). The hollow cylinder two (23) is slidably connected to the surface of the hollow cylinder one (22), and the hollow cylinder two (23) is rotatably connected to the mounting rod (62) through the bearing, so that the hollow cylinder two (23) can rotate relative to the hollow cylinder one (22) and can move up and down with the hollow cylinder one (22). The rotation of the hollow cylinder (22) drives the oil scraper (26) on its outer wall to rotate, scraping off the oil stains on the surface of the wastewater entering the oil scraping chamber. In the initial state, the floating block (71) of the sealing part (7) is above the dividing plate (3), and the sealing head (73) keeps the connecting rope (72) inside the water pipe (31), sealing the water pipe (31); the floating block (61) of the sealing part (6) floats on the water surface above the dividing plate (4), and the sealing head (73) keeps the connecting rope (72) inside the water pipe (31). (64) Insert into the second water pipe (41) and seal the second water pipe (41). As the oil scraper (26) continues to rotate and scrape the oil, the oil on the water surface in the oil scraping chamber is reduced and the water level drops. The first floating block (61) drops with the water level. When it drops to a suitable height, the first connecting rope (65) is tightened and the first sealing head (64) is pulled out from the second water pipe (41) to release the seal on the second water pipe (41). The water treated in the oil scraping chamber enters the sedimentation chamber through the second water pipe (41). After water enters the sedimentation chamber, impurities in the water settle onto the third dividing plate (5) under the action of gravity. When the second hollow cylinder (23) rotates, the one-piece block (231) on its surface is stuck into the one-piece groove (272) of the drive seat (271), which drives the drive seat (271) of the slag removal part (27) to rotate, and then drives the slag pusher plate (273) to rotate, pushing the stains settled on the third dividing plate (5) to prevent the stains from accumulating and clogging the pores on the third dividing plate (5) or affecting the sedimentation effect. After the water in the sedimentation chamber settles for a period of time, the water quality is relatively clear. The oil collected in the oil storage chamber of the main body of the treatment tank (1) is discharged through the drain pipe (12) set between the second dividing plate (4) and the third dividing plate (5), and discharged through the oil drain pipe (13) set above the bottom wall of the main body of the treatment tank (1). Cleaning impurities in the temporary storage tank: When the drive rod (21) rotates, the baffle plate (81) is driven to slide in the temporary storage tank (15) through the connecting rod (83). The arc-shaped guide plate (82) on the inner wall of the baffle plate (81) scrapes up the dirt left by the filter in the temporary storage tank (15) and pushes the dirt out of the temporary storage tank (15) as the baffle plate (81) moves. Sediment discharge: When it is necessary to discharge the sediment on the dividing plate three (5), the resistance of the damper (94) is overcome to pull the sealing plate (91), so that the rubber head (92) is moved out of the water pipe three (51), and the sealing of the water pipe three (51) is released. The sediment is discharged to the outside of the treatment box body (1) through the water pipe three (51).

Images