A device for removing oil and slag from chemical polishing waste phosphoric acid stock solution

Abstract

This invention relates to the field of waste phosphoric acid stock solution treatment technology, specifically disclosing an oil and slag removal device for waste phosphoric acid stock solution from chemical polishing. The device includes a main body with a partitioning component inside. The main body is connected to a dilution chamber, a mixing chamber, a flotation chamber, and a separation chamber via the partitioning component. An flotation component is located on the outside of the main body, including a dissolved air tank fixedly mounted on the top of the main body via a bracket. The waste phosphoric acid stock solution flows sequentially through the dilution chamber, mixing chamber, and flotation chamber, forming flocs that adsorb oil and impurities. After filtration through a filter screen, the filtrate enters the separation chamber and flows into the dissolved air tank through a connecting pipe. Simultaneously, a pressurizing mechanism pressurizes the stock solution in the dissolved air tank. When the pressure reaches the target level, an opening and closing mechanism drives a movable seat via a pressurizing seat to switch between the two dissolved air spaces in the dissolved air tank. This solves the problem of reduced oil and slag removal efficiency and quality caused by the start and stop of the air compressor in traditional single dissolved air spaces.

Description

Technical Field

[0001] This invention relates to the field of waste phosphoric acid stock solution treatment technology, and in particular to an oil and slag removal device for waste phosphoric acid stock solution used in chemical polishing. Background Technology

[0002] Chemical polishing phosphoric acid stock solution is mainly composed of phosphoric acid and often contains sulfuric acid and nitric acid. It is low in cost, makes metals bright, is applicable to a wide range of materials and has a wide range of process operations. However, it produces harmful gases, has a short solution life and is difficult to adjust the concentration. After disposal, in order to avoid polluting the subsequent treatment system, affecting the recycling effect and reducing environmental hazards, as well as to prevent clogging of pipes and equipment and avoid affecting water quality and treatment effect, it is necessary to remove oil and slag from the chemical polishing waste phosphoric acid stock solution.

[0003] In the oil and slag removal process, the original solution is first diluted to a concentration range of 20%-30%, and the pH value of the system is adjusted by adding lime milk to create a suitable chemical environment for the subsequent action of the agents. Then, coagulants and flocculants are added in sequence, and their hydrolysis characteristics are used to promote the formation and coagulation of colloids, so that the flocs gradually grow. Finally, the flocs and liquid phase are efficiently separated by air flotation equipment.

[0004] Traditional dissolved air flotation (DAF) equipment typically consists of only a single dissolved air tank. During operation, the air compressor automatically starts and stops based on signals from the pressure sensor inside the dissolved air tank. When the pressure inside the dissolved air tank drops to a preset lower limit, the air compressor starts to replenish air. However, during the pressure drop phase, the dissolved air efficiency decreases, resulting in a reduction in the amount of bubbles generated. This not only negatively impacts the oil and slag removal effect, making it difficult for the treated water quality to meet the expected standards, but also significantly reduces the efficiency of oil and slag removal, prolongs the entire process cycle, and increases production costs.

[0005] Therefore, there is a need to provide an oil and slag removal device for waste phosphate stock solution from chemical polishing, which aims to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide an oil and slag removal device for waste phosphoric acid stock solution in chemical polishing, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An oil and slag removal device for waste phosphoric acid stock solution from chemical polishing includes a main body. A partition assembly is provided within the main body, and the main body is configured with a dilution chamber, a mixing chamber, an air flotation chamber, and a separation chamber via the partition assembly. An air flotation assembly is provided on the outside of the main body. The air flotation assembly includes a dissolved air tank fixedly mounted on the top of the main body via a bracket. The dissolved air tank is connected to the separation chamber via a communication mechanism. The communication mechanism is symmetrically connected to the air flotation chamber via two air flotation tubes. An opening and closing mechanism is provided at the top of the two air flotation tubes. A pressurizing mechanism is provided at the top of the dissolved air tank. An air flotation base is fixedly connected between the two air flotation tubes.

[0009] The communication mechanism includes fixed plates symmetrically fixedly connected inside the dissolved gas tank, a three-way pipe fixedly connected between the two fixed plates, the three-way pipe being connected to the partition chamber through a connecting pipe, a movable seat being rotatably connected inside the three-way pipe, an L-shaped hole being opened inside the movable seat, a connecting rod being fixedly connected to the top of the movable seat, and a gear being fixedly connected to the top of the connecting rod.

[0010] The opening and closing mechanism includes a mounting base fixedly connected to the top of two air flotation tubes. A sealing plate is symmetrically slidably connected inside the mounting base, and a connecting frame is symmetrically fixedly connected to the outside of the sealing plate.

[0011] The pressurizing mechanism includes a pressurizing seat slidably connected to the top of the dissolved gas tank, and a rack is fixedly connected to the bottom of the pressurizing seat, with the gear meshing with the rack.

[0012] As a further improvement to the above solution, the separating assembly includes partition 1, partition 2, partition 3, partition 4, and partition 5. The dilution chamber is composed of partition 2 and the main body of the equipment. The mixing chamber is composed of partition 2, the main body of the equipment, and partition 4. The flotation chamber is composed of partition 4, the main body of the equipment, and partition 5. The separating chamber is composed of partition 5 and the main body of the equipment. Partition 1 is fixedly connected to the dilution chamber. Partition 3 is fixedly connected to the mixing chamber. A filter screen is fixedly connected between partition 5 and the main body of the equipment.

[0013] As a further improvement to the above solution, a slag scraping assembly is provided on the top of the main body of the equipment. The slag scraping assembly includes a scraper and a motor. Two transmission rollers are rotatably connected to the top of the main body of the equipment. The two transmission rollers and the scraper form a transmission. A transmission belt is uniformly fixedly connected to the outer side of the scraper. One of the transmission rollers passes through the main body of the equipment and is fixedly connected to the output shaft of the motor.

[0014] As a further improvement to the above solution, the communication mechanism also includes a piston that is symmetrically slidably connected inside the dissolved gas tank, and an inert gas is stored between the piston and the dissolved gas tank.

[0015] As a further improvement to the above solution, the inside of the three-way pipe is symmetrically and fixedly connected with sealing rings, the movable seat is rotatably connected between the two sealing rings, and a water pump is fixedly installed on the outside of the connecting pipe.

[0016] As a further improvement to the above solution, a sealing seat is fixedly connected to the top of the dissolved gas tank, and the connecting rod is rotatably connected to the sealing seat.

[0017] As a further improvement to the above solution, the pressure seat has a pressure port inside, and a three-way groove is fixedly connected to the top of the pressure seat.

[0018] As a further improvement to the above solution, a slider is fixedly connected to the bottom of the sealing plate, a slide block is slidably connected inside the mounting base, a locking block is slidably connected to the inner side of the slide block, a spring is symmetrically fixedly connected between the slide block and the locking block, a spring is symmetrically fixedly connected between the slide block and the inner wall of the mounting base, and a guide rod is symmetrically fixedly connected inside the mounting base, the guide rod passing through the locking block and the slide block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Waste phosphoric acid stock solution flows sequentially into the dilution chamber, mixing chamber, and flotation chamber to facilitate the adsorption of oil and impurities by the flocs. After passing through a filter screen to filter the flocs, the filtrate enters the separation chamber and then flows into the dissolved air tank through a connecting pipe. At the same time, the pressurizing mechanism pressurizes the phosphoric acid stock solution in the dissolved air tank. When the pressure reaches the predetermined value, the opening and closing mechanism is activated, driving the movable seat to reverse its installation via the pressurizing seat. This achieves the switching between the two dissolved air spaces in the dissolved air tank, effectively solving the problem of reduced oil and slag removal efficiency and decreased treatment quality caused by the start and stop of the air compressor in the traditional single dissolved air space mode.

[0021] 2. The spring uses a locking block inside the slide to allow one sealing plate to seal the air float tube, while the other is inside the mounting base, causing the corresponding air float tube to open. When the pressure of the sealed air float tube is too high, it pushes the sealing plate down to squeeze the locking block. The locking block slides down along the guide rod, and the slider drives the sealing plate to be stored in the mounting base. At the same time, this sealing plate, through the connecting frame and the pressure seat, drives another sealing plate to seal the other mounting base, realizing the alternating opening and closing of the two air float tubes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall bottom structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the main body of the device of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the air flotation component of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the antiscalant assembly of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the dissolved gas tank of the present invention;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A;

[0030] Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point B;

[0031] Figure 9 This is a schematic diagram of the connecting mechanism of the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the movable seat of the present invention;

[0033] Figure 11 This is a cross-sectional structural diagram of the mounting base of the present invention.

[0034] In the diagram: 1. Main body of the equipment; 2. Separation assembly; 21. Separator 1; 22. Separator 2; 23. Separator 3; 24. Separator 4; 25. Separator 5; 26. Filter screen; 3. Air flotation assembly; 31. Dissolved air tank; 32. Support frame; 33. Connecting mechanism; 331. Connecting pipe; 332. Piston; 333. Fixing plate; 334. T-pipe; 3351. Gear; 3352. Rack; 336. Connecting rod; 337. Movable seat; 338. Sealing ring; 339. Sealing seat 34. Water pump; 35. Opening and closing mechanism; 351. Mounting base; 352. Sealing plate; 353. Slider; 354. Slide seat; 355. Spring 1; 356. Locking block; 357. Guide rod; 358. Connecting frame; 359. Spring 2; 36. Air flotation tube; 37. Pressurization mechanism; 371. Pressurization seat; 372. T-slot; 373. Pressurization port; 38. Air flotation base; 4. Foam scraper assembly; 41. Scraper; 42. Drive belt; 43. Drive roller; 44. Motor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0036] Please see Figures 1 to 11 As shown, the present invention provides an embodiment:

[0037] An oil and slag removal device for waste phosphoric acid stock solution from chemical polishing includes a main body 1. A partition component 2 is provided inside the main body 1. The main body 1 is provided with a dilution chamber, a mixing chamber, an air flotation chamber and a separation chamber through the partition component 2. An air flotation component 3 is provided on the outside of the main body 1. The air flotation component 3 includes a dissolved air tank 31 fixedly installed on the top of the main body 1 by a bracket 32. The dissolved air tank 31 is connected to the separation chamber through a connecting mechanism 33. The connecting mechanism 33 is symmetrically connected to the air flotation chamber through two air flotation tubes 36. An opening and closing mechanism 35 is provided at the top of the two air flotation tubes 36. A pressurizing mechanism 37 is provided at the top of the dissolved air tank 31. An air flotation base 38 is fixedly connected between the two air flotation tubes 36.

[0038] The connecting mechanism 33 includes fixed plates 333 symmetrically fixedly connected to the dissolved gas tank 31. A three-way pipe 334 is fixedly connected between the two fixed plates 333. The three-way pipe 334 is connected to the partition chamber through a connecting pipe 331. A movable seat 337 is rotatably connected inside the three-way pipe 334. An L-shaped hole is opened inside the movable seat 337. A connecting rod 336 is fixedly connected to the top of the movable seat 337. A gear 3351 is fixedly connected to the top of the connecting rod 336.

[0039] The opening and closing mechanism 35 includes a mounting base 351 fixedly connected to the top of two air flotation tubes 36. A sealing plate 352 is symmetrically slidably connected inside the mounting base 351, and a connecting frame 358 is symmetrically fixedly connected to the outside of the sealing plate 352.

[0040] The pressurizing mechanism 37 includes a pressurizing seat 371 that is slidably connected to the top of the dissolved gas tank 31. A rack 3352 is fixedly connected to the bottom of the pressurizing seat 371, and the rack 3352 meshes with each other.

[0041] In practical applications, this embodiment, such as Figures 1 to 3 As shown, the waste phosphoric acid stock solution first enters the dilution chamber inside the main body 1 of the equipment, where it is diluted to a suitable concentration. Then, the stock solution flows into the mixing chamber, where lime milk is added to adjust the pH value, creating suitable conditions for the subsequent agents to take effect. Next, coagulants and flocculants are added to promote the formation of flocs from impurities and oil in the stock solution.

[0042] like Figures 1 to 4 As shown, the raw solution after floc formation enters the flotation chamber, while the phosphate raw solution in the separation chamber enters the dissolved air tank 31 through the connecting mechanism 33. The pressurizing mechanism 37 starts working, sending high-pressure gas into the dissolved air tank 31 to pressurize the phosphate raw solution in the dissolved air tank 31.

[0043] like Figure 4 , Figure 6 , Figure 8 , Figure 9 and Figure 11 As shown, when the pressure inside the dissolved gas tank 31 reaches the specified value, the opening and closing mechanism 35 takes effect. The pressure inside the dissolved gas tank 31 is transmitted to the flotation tube 36 through the connecting mechanism 33. When the pressure inside one of the flotation tubes 36 is too high, it is pushed towards the inside of the mounting base 351 by the inclined surface of the sealing plate 352, so that the sealing plate 352 is stored in the mounting base 351. At this time, the flotation tube 36 is opened. At the same time, the sealing plate 352 is linked with the pressure seat 371 through the connecting frame 358, which drives the sealing plate 352 in the mounting base 351 at the top of the other flotation tube 36 to seal the flotation tube 36. In this way, the two flotation tubes 36 are opened and closed alternately. The dissolved phosphate stock solution enters the flotation chamber through the opened flotation tube 36. In the flotation chamber, the bubbles generated by dissolved gas combine with the flocs, causing the flocs to adsorb oil and impurities and float to the liquid surface. The flocs are separated from the liquid by the flotation base 38 and other devices, thereby completing the oil and slag removal process of the chemical polishing waste phosphate stock solution.

[0044] like Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, when the connecting frame 358 drives the pressure seat 371 to slide on the top of the dissolved gas tank 31, the rack 3352 fixedly connected to its bottom drives the gear 3351 that meshes with it to rotate, thereby causing the connecting rod 336 and the movable seat 337 connected below the gear 3351 to rotate in the three-way pipe 334, adjusting the communication state between the dissolved gas tank 31 and the partition chamber, so as to cooperate with the two air flotation pipes 36 to complete the alternation of the two dissolved gas spaces and ensure the efficiency of oil and slag removal.

[0045] like Figures 1 to 3 As shown, the separation assembly 2 includes partition 1 21, partition 22, partition 3 23, partition 4 24 and partition 5 25. The dilution chamber is composed of partition 2 22 and the main body 1. The mixing chamber is composed of partition 2 22, the main body 1 and partition 4 24. The flotation chamber is composed of partition 4 24, the main body 1 and partition 5 25. The separation chamber is composed of partition 5 25 and the main body 1. Partition 1 21 is fixedly connected to the dilution chamber. Partition 3 23 is fixedly connected to the mixing chamber. A filter screen 26 is fixedly connected between partition 5 25 and the main body 1.

[0046] In practical application, the waste phosphoric acid stock solution first flows into the dilution chamber formed by partition 22 and the main body of the equipment 1. Inside the dilution chamber, partition 1 21 guides and assists in mixing, ensuring the stock solution contacts the diluent more evenly, completing the dilution operation and achieving the target concentration range of 20%-30%. The diluted stock solution then enters the mixing chamber formed by partition 22, the main body of the equipment 1, and partition 4 24. Inside the mixing chamber, partition 3 23 further guides and assists in mixing, ensuring the stock solution is fully mixed with the added lime slurry, precisely adjusting the pH value to prepare for the subsequent addition of coagulants and flocculants. The coagulant creates a suitable chemical environment, causing impurities and oil in the raw solution to form flocs. The raw solution with flocs then flows into the flotation chamber composed of partition 4 24, the main body of the equipment 1, and partition 5 25. At the same time, the raw solution in the flotation chamber is filtered by the filter screen 26, which is fixedly connected between partition 5 25 and the main body of the equipment 1. The filtered raw solution enters the partition chamber formed by partition 5 25 and the main body of the equipment 1. The filter screen 26 can intercept larger floc particles to prevent them from entering the partition chamber and affecting the subsequent dissolved air and flotation process. The raw solution in the partition chamber then enters the dissolved air tank 31 through the connecting mechanism 33 for pressurized dissolved air treatment.

[0047] like Figure 3 and Figure 5 As shown, the skimming assembly 4 includes a scraper 41 and a motor 44. Two transmission rollers 43 are rotatably connected to the top of the main body 1. The two transmission rollers 43 and the scraper 41 form a transmission. A transmission belt 42 is uniformly fixedly connected to the outer side of the scraper 41. One of the transmission rollers 43 passes through the main body 1 and is fixedly connected to the output shaft of the motor 44.

[0048] In practical application, the motor 44 starts running, and its output shaft drives a transmission roller 43 fixedly connected to it to rotate synchronously. Since the two transmission rollers 43 and the scraper 41 are connected by a transmission belt 42, when one transmission roller 43 rotates, the transmission belt 42 moves accordingly, thereby driving the other transmission roller 43 and the scraper 41 to move on the top of the main body 1 of the equipment. After the flotation process is completed in the flotation chamber, a large amount of flocs adsorbing oil and impurities float to the liquid surface to form a foam layer. As the scraper 41 moves, it can scrape off the foam on the liquid surface in the flotation chamber. The scraped foam slides down the scraper 41 to the designated position for easy centralized cleaning, ensuring the cleanliness of the liquid surface in the flotation chamber, maintaining the high efficiency of the flotation process, ensuring that the oil and slag removal equipment can stably and continuously treat the chemical polishing waste phosphoric acid stock solution, improving the overall treatment effect and work efficiency. In addition, the scraper 41 can also clean the flocs on the top of the filter screen 26.

[0049] like Figure 6 As shown, the connecting mechanism 33 also includes a piston 332 that is symmetrically slidably connected inside the dissolved gas tank 31, and an inert gas is stored between the piston 332 and the dissolved gas tank 31.

[0050] In practical application, as the phosphate stock solution enters, the pressure inside the dissolved gas tank 31 gradually increases. At this time, the piston 332, which is symmetrically slidably connected inside the dissolved gas tank 31, begins to play its role. Since there is inert gas stored between the piston 332 and the dissolved gas tank 31, when the pressure inside the dissolved gas tank 31 increases, the piston 332 is subjected to the pressure of the stock solution and will slide in the direction of compressing the inert gas. The inert gas is compressed, which plays a role in buffering and stabilizing the pressure change inside the dissolved gas tank 31, and avoids the pressure from rising sharply in an instant.

[0051] When the pressure inside the dissolved air tank 31 reaches the specified value, the opening and closing mechanism 35 is activated. The dissolved phosphate stock solution in the dissolved air tank 31 enters the flotation chamber through the flotation pipe 36. As the stock solution flows out, the pressure inside the dissolved air tank 31 decreases. At this time, the compressed inert gas begins to expand, pushing the piston 332 to slide in the opposite direction, replenishing the pressure reduced due to the outflow of the stock solution, maintaining the relative stability of the pressure inside the dissolved air tank 31, ensuring the stability and continuity of the dissolved air effect, so that uniform and stable bubbles can be continuously generated during the flotation process, effectively combining with the flocs, and improving the efficiency and quality of oil and slag removal.

[0052] like Figure 5 As shown, the inside of the three-way pipe 334 is symmetrically and fixedly connected with sealing rings 338, the movable seat 337 is rotatably connected between the two sealing rings 338, and the outside of the connecting pipe 331 is fixedly installed with a water pump 34.

[0053] In practical application, the phosphate stock solution in the partition chamber flows through the connecting pipe 331 to the three-way pipe 334 under the suction force generated by the water pump 34. The sealing rings 338 symmetrically fixed inside the three-way pipe 334 tightly fit the movable seat 337, providing a stable and sealed environment for its rotation and preventing the stock solution from leaking.

[0054] like Figure 9 As shown, a sealing seat 339 is fixedly connected to the top of the dissolved gas tank 31, and the connecting rod 336 is rotatably connected to the sealing seat 339.

[0055] In practical application, the rotatable connection between the connecting rod 336 and the sealing seat 339 provides a stable and sealed rotatable support point for the connecting rod 336. This ensures that the connecting rod 336 can smoothly drive the movable seat 337 to rotate within the three-way pipe 334. This allows the L-shaped hole inside the movable seat 337 to accurately adjust the communication state between the dissolved gas tank 31 and the partition chamber, allowing the phosphate stock solution to smoothly enter the dissolved gas tank 31. At the same time, the sealing seat 339 also provides a good sealing effect, preventing high-pressure gas and liquid in the dissolved gas tank 31 from leaking from the connection between the connecting rod 336 and the top of the dissolved gas tank 31.

[0056] like Figure 6 and Figure 7As shown, the pressure seat 371 has a pressure port 373 inside, and a three-way groove 372 is fixedly connected to the top of the pressure seat 371.

[0057] In practical application, the three-way groove 372 fixedly connected to the top of the pressure seat 371 serves as a gas input channel. An external gas source can deliver gas into the pressure seat 371 through the three-way groove 372. Furthermore, through the connection between the connecting frame 358 and the sealing plate 352, it can be synchronized with the dissolved gas space conversion, ensuring that the pressure can still be stably applied after the dissolved gas space conversion.

[0058] like Figure 8 As shown, a slider 353 is fixedly connected to the bottom of the sealing plate 352. A slide block 354 is slidably connected inside the mounting base 351. A locking block 356 is slidably connected to the inner side of the slide block 354. A spring 355 is symmetrically fixedly connected between the slide block 354 and the locking block 356. A spring 359 is symmetrically fixedly connected between the slide block 354 and the inner wall of the mounting base 351. A guide rod 357 is symmetrically fixedly connected inside the mounting base 351, and the guide rod 357 passes through the locking block 356 and the slide block 354.

[0059] In practical application, the pressure inside the dissolved air tank 31 is transmitted to the air flotation tube 36 through the connecting mechanism 33. When the pressure inside one of the air flotation tubes 36 is too high, the sealing plate 352 is pushed down. The sealing plate 352 squeezes the locking block 356 inside the slide block 354. The locking block 356 slides down under the guidance of the guide rod 357, driving the slider 353 to move, so that the sealing plate 352 is stored in the mounting base 351, and the air flotation tube 36 is opened. At the same time, the sealing plate 352 is linked with the pressure seat 371 through the connecting frame 358, which drives the sealing plate 352 in the top mounting base 351 of the other air flotation tube 36 to seal the air flotation tube 36, thereby realizing the alternating opening and closing of the two air flotation tubes 36.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil and slag removal device for waste phosphoric acid stock solution used in chemical polishing, comprising a main body (1), characterized in that: The main body (1) of the equipment is provided with a partition component (2). The main body (1) of the equipment is provided with a dilution chamber, a mixing chamber, an air flotation chamber and a partition chamber through the partition component (2). An air flotation component (3) is provided on the outside of the main body (1). The air flotation component (3) includes a dissolved gas tank (31) fixedly installed on the top of the main body (1) through a bracket (32). The dissolved gas tank (31) is connected to the partition chamber through a connecting mechanism (33). The connecting mechanism (33) is symmetrically connected to the air flotation chamber through two air flotation tubes (36). An opening and closing mechanism (35) is provided on the top of the two air flotation tubes (36). A pressurizing mechanism (37) is provided on the top of the dissolved gas tank (31). An air flotation base (38) is fixedly connected between the two air flotation tubes (36). The communication mechanism (33) includes fixed plates (333) symmetrically fixedly connected to the dissolved gas tank (31), a three-way pipe (334) fixedly connected between the two fixed plates (333), the three-way pipe (334) and the partition chamber are connected through a connecting pipe (331), a movable seat (337) is rotatably connected inside the three-way pipe (334), an L-shaped hole is opened inside the movable seat (337), a connecting rod (336) is fixedly connected to the top of the movable seat (337), and a gear (3351) is fixedly connected to the top of the connecting rod (336). The opening and closing mechanism (35) includes a mounting base (351) fixedly connected to the top of two air float tubes (36). A sealing plate (352) is symmetrically slidably connected inside the mounting base (351), and a connecting frame (358) is symmetrically fixedly connected to the outside of the sealing plate (352). When the pressure inside one of the air float tubes (36) is too high, it is pushed towards the inside of the mounting base (351) by the inclined surface of the sealing plate (352), so that the sealing plate (352) is stored in the mounting base (351). The pressurizing mechanism (37) includes a pressurizing seat (371) slidably connected to the top of the dissolved gas tank (31), and a rack (3352) is fixedly connected to the bottom of the pressurizing seat (371), and the gear (3351) and the rack (3352) mesh with each other; The three-way pipe (334) is symmetrically fixedly connected with sealing rings (338), the movable seat (337) is rotatably connected between the two sealing rings (338), and a water pump (34) is fixedly installed on the outside of the connecting pipe (331); the top of the dissolved gas tank (31) is fixedly connected with a sealing seat (339), and the connecting rod (336) is rotatably connected to the sealing seat (339); the pressure seat (371) has a pressure port (373) inside, and the top of the pressure seat (371) is fixedly connected with a three-way groove (372); the sealing plate (352) A slider (353) is fixedly connected to the bottom of the mounting base (351). A slide block (354) is slidably connected inside the mounting base (351). A locking block (356) is slidably connected to the inner side of the slide block (354). A spring (355) is symmetrically fixedly connected between the slide block (354) and the locking block (356). A spring (359) is symmetrically fixedly connected between the slide block (354) and the inner wall of the mounting base (351). A guide rod (357) is symmetrically fixedly connected inside the mounting base (351). The guide rod (357) passes through the locking block (356) and the slide block (354).

2. The oil and slag removal equipment for waste phosphoric acid solution from chemical polishing according to claim 1, characterized in that: The separation component (2) includes partition 1 (21), partition 2 (22), partition 3 (23), partition 4 (24) and partition 5 (25). The dilution chamber is composed of partition 2 (22) and the main body of the equipment (1). The mixing chamber is composed of partition 2 (22), the main body of the equipment (1) and partition 4 (24). The flotation chamber is composed of partition 4 (24), the main body of the equipment (1) and partition 5 (25). The separation chamber is composed of partition 5 (25) and the main body of the equipment (1). Partition 1 (21) is fixedly connected to the dilution chamber. Partition 3 (23) is fixedly connected to the mixing chamber. A filter screen (26) is fixedly connected between partition 5 (25) and the main body of the equipment (1).

3. The oil and slag removal equipment for waste phosphoric acid solution from chemical polishing according to claim 2, characterized in that: The top of the main body (1) of the equipment is provided with a skimmer assembly (4), which includes a scraper (41) and a motor (44). Two transmission rollers (43) are rotatably connected to the top of the main body (1). The two transmission rollers (43) and the scraper (41) form a transmission. A transmission belt (42) is uniformly fixedly connected to the outer side of the scraper (41). One of the transmission rollers (43) passes through the main body (1) and is fixedly connected to the output shaft of the motor (44).

4. The oil and slag removal equipment for waste phosphoric acid solution from chemical polishing according to claim 2, characterized in that: The communication mechanism (33) also includes a piston (332) symmetrically slidably connected inside the dissolved gas tank (31), and an inert gas is stored between the piston (332) and the dissolved gas tank (31).

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