Composite oxidation reactor based on hydrochloric acid arsenic and bromine removal integrated system and method of use

Abstract

The application relates to the technical field of oxidation reactors, in particular to a composite oxidation reactor based on an integrated system for removing arsenic and bromine by hydrochloric acid and a use method, which comprises a reactor and a sealing cover, the top end of the reactor is fixedly installed with the sealing cover, the two sides of the reactor are fixedly installed with air disc adjusting members, one same flow guide mechanism is installed between the two air disc adjusting members, and the flow guide mechanism is located at the top of the inner side of the reactor; the air disc adjusting member comprises two fixed feet, the fixed feet are fixedly connected with the reactor through bolts, a bidirectional screw rod is rotationally connected between the two fixed feet, a pushing mechanism is threadedly connected with the top and the bottom of the bidirectional screw rod, and a connecting piece is installed on the outer side of the pushing mechanism; in the application, the bubbles output by the aeration disc can sweep the inner wall area of the reactor in a directional manner, the oxidation dead angle caused by the traditional fixed aeration disc is completely eliminated, the contact between the hydrochloric acid and oxygen is more uniform, and the oxidation conversion rate and the treatment completeness of arsenic and bromine impurities are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of oxidation reactor technology, specifically to a composite oxidation reactor based on an integrated hydrochloric acid system for arsenic and bromine removal, and its usage method. Background Technology

[0002] Hydrochloric acid, a widely used basic chemical raw material in industrial production, directly affects the stability of subsequent production processes and product quality. The presence of arsenic and bromine impurities poses numerous hazards. Arsenic, a highly toxic substance, not only pollutes the environment and harms human health but also poisons catalysts in subsequent chemical reactions, reducing catalytic efficiency and shortening catalyst lifespan. Bromine impurities may generate highly corrosive and harmful byproducts in subsequent reactions, corroding production equipment and affecting product purity and performance. Therefore, efficient removal of arsenic and bromine impurities from hydrochloric acid is a crucial step in ensuring industrial production safety and improving product quality.

[0003] In the integrated hydrochloric acid arsenic and bromine removal system, the composite oxidation reactor is the core key equipment. Its main function is to oxidize low-valent arsenic (such as trivalent arsenic) in hydrochloric acid to high-valent arsenic through oxidation reaction, so that it can be separated and removed by subsequent precipitation, adsorption and other methods. At the same time, it oxidizes bromide ions to elemental bromine, and then realizes the recovery or removal of bromine through corresponding processes. Thus, the purification treatment of arsenic and bromine impurities in hydrochloric acid is completed simultaneously, improving the purification efficiency and treatment effect of hydrochloric acid.

[0004] Currently, most existing hydrochloric acid oxidation reactors for arsenic and bromine removal employ bottom microporous aeration discs for deep oxidation. The core principle is to introduce oxygen into the reactor through the microporous aeration discs, utilizing the oxidizing effect of oxygen to achieve the oxidative conversion of arsenic and bromine. However, this structure has significant drawbacks. Because the microporous aeration discs are set parallel to the bottom of the reactor, the oxygen bubbles dispersed through the micropores have a relatively unidirectional transport direction, mostly moving vertically upwards. This fails to create a uniform airflow distribution within the reactor, resulting in oxidation dead zones around the reactor walls. Hydrochloric acid in these areas cannot fully contact oxygen, leading to incomplete oxidation and a significant reduction in overall oxidation efficiency. Therefore, to address these issues, a composite oxidation reactor and its application method based on an integrated hydrochloric acid arsenic and bromine removal system are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a composite oxidation reactor and its usage method based on an integrated hydrochloric acid system for arsenic and bromine removal, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A composite oxidation reactor based on an integrated hydrochloric acid system for arsenic and bromine removal includes a reactor and a sealing cover. The sealing cover is fixedly installed at the top of the reactor, and gas disc adjustment components are fixedly installed on both sides of the reactor. A common flow guiding mechanism is installed between the two gas disc adjustment components, and the flow guiding mechanism is located at the top of the inner side of the reactor. Each gas disc adjustment component includes two fixed feet, which are fixedly connected to the reactor by bolts. A bidirectional screw is rotatably connected between the two fixed feet. The top and bottom of the bidirectional screw are threaded with a pushing mechanism. A connecting piece is installed on the outside of the pushing mechanism. The back of the connecting piece is magnetically engaged with the flow guiding mechanism. A common connecting plate is hinged between the two connecting pieces. The connecting plate is located at the bottom of the inner side of the reactor, and the axis of the connecting plate is collinear with the axis of the gas disc mechanism.

[0008] As a further optimization of this utility model, the pushing mechanism includes a push plate, and a nut is embedded and fixed in the middle of the inner side of the push plate. The push plate is threadedly connected to a bidirectional screw through the nut. A positioning sleeve is fixedly fixed through both sides of the push plate. A grooved positioning rod is fixedly connected to the inner side of one of the positioning sleeves. The grooved positioning rod extends into the positioning sleeve of the corresponding push plate. Positioning grooves are opened on both sides of the grooved positioning rod.

[0009] As a further optimization of this utility model, the connector includes a connecting seat, a strong magnetic block is embedded and fixed on the back of the connecting seat, a connecting base is fixedly connected to the outer wall of the connecting seat, an upper base is hinged to the front end of the connecting base, an arm is fixedly connected to the bottom end of the upper base, a lower base is fixedly connected to the bottom end of the arm, and the two lower bases are respectively hinged to the two sides of the connecting plate.

[0010] As a further optimization of this utility model, the connecting seat is slidably disposed on the outside of the grooved positioning rod, and the rear end face of the connecting seat is in contact with the outside of the reactor.

[0011] As a further optimization of this utility model, the flow guiding mechanism includes a support plate, with mating rods fixedly connected to both sides of the support plate, and two sets of flow guide shields fixedly attached to the upper surface of the mating rods.

[0012] As a further optimization of this utility model, the two mating rods are parallel to each other, the outer side of the mating rods is in contact with the inner side of the reactor, and the mating rods are magnetically attracted to the strong magnetic block.

[0013] As a further optimization of this utility model, each group of the flow guides is configured with multiple flow guides, and the multiple flow guides are arranged sequentially along a linear direction. The top and bottom of the flow guides are both funnel-shaped, and multiple spikes arranged in a circular array are fixed in the middle of the inner side of the flow guide.

[0014] As a further optimization of this utility model, a synchronous motor is fixedly mounted on the top of the fixed foot above via a motor mount. The drive shaft of the synchronous motor is fixedly connected to a bidirectional screw, and the synchronous motor is a right-angle motor.

[0015] As a further optimization of this utility model, the air disc mechanism includes a connecting shaft, which is fixedly connected between two connecting discs. The connecting shaft is rotatably connected to the reactor. Fastening sleeves are fixedly connected to both sides of the connecting shaft. An aeration disc is fixedly connected to the top of the fastening sleeve. The two aeration discs are symmetrically distributed from left to right, and there is a gap between the aeration discs and the reactor.

[0016] How to use the composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system:

[0017] Step 1: Turn on the feed pump and continuously feed the hydrochloric acid to be purified into the reactor at a constant flow rate. The liquid level in the reactor is kept stable by the liquid level control system in the area below the flow guide mechanism and where the aeration disc is completely submerged.

[0018] Step 2: Turn on the external oxygen source and supply oxygen continuously and stably to the aeration disc of the air disc mechanism through the pipeline. The oxygen forms uniform and fine bubbles through the micropores. In the initial state, adjust the aeration disc to be parallel to the bottom of the reactor so that the hydrochloric acid will immediately undergo an oxidation reaction after entering the reactor, oxidizing trivalent arsenic to pentavalent arsenic and bromide ions to elemental bromine.

[0019] Step 3: Start the synchronous motors on both sides, and drive the bidirectional screw to run continuously through the synchronous controller. This drives the push mechanism and connecting parts to rise and fall periodically, so that the left and right connecting seats form an alternating height difference. This drives the connecting plate and connecting shaft to rotate continuously back and forth, so that the aeration plate can tilt continuously left and right within the range of 0°-30°, and the bubbles sweep across the inner wall area of ​​the reactor in a directional manner.

[0020] Step 4: The strong magnetic block of the connector magnetically engages with the flow guiding mechanism, causing the mating rod and the flow guiding hood to swing continuously and synchronously with the aeration disc; the rising bubbles gather through the flow guiding hood and are continuously punctured by the piercing cone, breaking into microbubbles.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this invention, by setting air disc adjustment components on both sides of the reactor, and using the linkage transmission of the bidirectional screw, the pushing mechanism and the connecting parts, the angle of the connecting disc and the air disc mechanism can be continuously adjusted, so that the bubbles output by the aeration disc can sweep across the inner wall area of ​​the reactor in a directional manner, completely eliminating the oxidation dead zone caused by the traditional fixed aeration disc, making the contact between hydrochloric acid and oxygen more uniform, and significantly improving the oxidation conversion rate and treatment thoroughness of arsenic and bromine impurities.

[0023] 2. In this invention, a strong magnetic block on the connector is magnetically attracted to the flow guiding mechanism, so that the flow guiding hood and the aeration disc can tilt and swing synchronously. Combined with the trumpet-shaped flow guiding hood and the spiked cone structure, it can efficiently gather rising bubbles and puncture large bubbles into micro bubbles, greatly increasing the gas-liquid contact area and reaction residence time. Without increasing energy consumption and equipment volume, it further enhances oxidation efficiency and improves the hydrochloric acid purification effect.

[0024] 3. In this invention, the synchronous motor and bidirectional screw drive are stable, the slotted positioning rod and the connecting seat cooperate to ensure the motion accuracy, the aeration disc and the reactor are reserved with a gap to avoid collision, and the sealing cover can realize the closed collection of tail gas. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the reactor of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the air disc adjustment component of the present invention;

[0028] Figure 4 This is an enlarged structural schematic diagram of the air disc mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the actuating mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram of the connector of the present invention;

[0031] Figure 7 This is a schematic diagram of the back structure of the connector of the present invention;

[0032] Figure 8 This is a schematic diagram of the flow guiding mechanism of the present invention;

[0033] Figure 9 This is a cross-sectional structural diagram of the air deflector of the present invention.

[0034] In the diagram: 1. Reactor; 2. Sealing cap; 3. Gas regulating component;

[0035] 31. Fixed foot; 32. Double-acting screw; 33. Pushing mechanism; 34. Connecting part; 35. Connecting plate; 36. Air-circuit mechanism; 37. Synchronous motor;

[0036] 331. Push plate; 332. Positioning sleeve; 333. Grooved positioning rod; 334. Positioning groove;

[0037] 340. Connecting seat; 341. Strong magnet; 342. Connecting seat; 343. Upper seat; 344. Arm; 345. Lower seat;

[0038] 361. Connecting shaft; 362. Fastening sleeve; 363. Aeration disc;

[0039] 4. Flow guiding mechanism; 41. Support plate; 42. Matching rod; 43. Flow guide cover; 44. Spike. Detailed Implementation

[0040] Please see Figures 1-9 A composite oxidation reactor based on an integrated hydrochloric acid system for arsenic and bromine removal and its usage method includes a reactor 1 and a sealing cover 2. The sealing cover 2 is fixedly installed on the top of the reactor 1. Gas plate adjustment components 3 are fixedly installed on both sides of the reactor 1. A common flow guiding mechanism 4 is installed between the two gas plate adjustment components 3. The flow guiding mechanism 4 is located at the top inside the reactor 1.

[0041] The gas disc adjustment component 3 includes two fixed feet 31, which are fixedly connected to the reactor 1 by bolts. A bidirectional screw 32 is rotatably connected between the two fixed feet 31. A pushing mechanism 33 is threadedly connected to the top and bottom of the bidirectional screw 32. A connecting piece 34 is installed on the outside of the pushing mechanism 33. The back of the connecting piece 34 is magnetically engaged with the flow guiding mechanism 4. The same connecting plate 35 is hinged between the two connecting pieces 34. The connecting plate 35 is located at the bottom inside the reactor 1. The axis of the connecting plate 35 is collinear with the axis of the gas disc mechanism 36.

[0042] As a further implementation of this solution, the pushing mechanism 33 includes a push plate 331. A nut is embedded and fixed in the middle of the inner side of the push plate 331. The push plate 331 is threadedly connected to the bidirectional screw 32 through the nut. A positioning sleeve 332 is fixedly fixed through both sides of the push plate 331. A grooved positioning rod 333 is fixedly connected to the inner side of one of the positioning sleeves 332. The grooved positioning rod 333 extends into the positioning sleeve 332 of the corresponding push plate 331. A positioning groove 334 is opened on both sides of the grooved positioning rod 333.

[0043] Specifically, the slotted positioning rod 333 cooperates with the positioning sleeve 332 to ensure that the push plate 331 moves smoothly and linearly along the bidirectional screw 32 without shaking or deflection;

[0044] As a further implementation of this solution, the connector 34 includes a connector 340, a strong magnet 341 is embedded and fixed on the back of the connector 340, a connecting seat 342 is fixedly connected to the outer wall of the connector 340, an upper seat 343 is hinged to the front end of the connecting seat 342, an arm 344 is fixedly connected to the bottom end of the upper seat 343, a lower seat 345 is fixedly connected to the bottom end of the arm 344, and the two lower seats 345 are respectively hinged to the two sides of the connecting plate 35.

[0045] Specifically, through the hinged connection of the connecting seat 340, the arm 344 and the connecting plate 35, the left and right height difference is stably converted into the tilt angle of the air disc mechanism 36, and the transmission is smooth and without jamming.

[0046] As a further implementation of this scheme, the connecting seat 340 is slidably disposed on the outside of the grooved positioning rod 333, and the rear end face of the connecting seat 340 is in contact with the outside of the reactor 1.

[0047] Specifically, the connecting seat 340 is limited to linear lifting and lowering along the grooved positioning rod 333 to avoid radial offset and ensure stable contact with the outer wall of the reactor 1;

[0048] As a further implementation of this solution, the flow guiding mechanism 4 includes a support plate 41, with a mating rod 42 fixedly connected to both sides of the support plate 41, and two sets of flow guiding shrouds 43 fixedly connected to the upper surface of the mating rod 42.

[0049] Specifically, the rising bubbles are guided by the flow guide 43, which prolongs the residence path of the bubbles in the reactor 1 and enhances the contact time and contact probability between hydrochloric acid and oxygen.

[0050] As a further implementation of this scheme, the two mating rods 42 are parallel to each other, the outer side of the mating rods 42 is attached to the inner side of the reactor 1, and the mating rods 42 are magnetically attracted to the strong magnetic block 341.

[0051] Specifically, the connecting rod 42 and the strong magnetic block 341 magnetically engage to achieve synchronous tilting of the flow guiding mechanism 4 and the aeration disc 363 without the need for additional drive.

[0052] As a further implementation of this solution, each group of the flow guide 43 is provided with multiple flow guides 43, and the multiple flow guides 43 are arranged sequentially along a linear direction. The top and bottom of the flow guide 43 are both horn-shaped, and multiple spikes 44 arranged in a circular array are fixed in the middle of the inner side of the flow guide 43.

[0053] Specifically, the horn-shaped guide shroud 43 facilitates the entry and exit of air bubbles, while the spike 44 can quickly puncture rising large air bubbles, breaking them into microbubbles and significantly increasing the gas-liquid contact area.

[0054] As a further implementation of this solution, a synchronous motor 37 is fixedly installed on the top of the upper fixed foot 31 via a motor mount. The drive shaft of the synchronous motor 37 is fixedly connected to the bidirectional screw 32. The synchronous motor 37 is a right-angle motor.

[0055] Specifically, the right-angle motor saves installation space at the top of the reactor 1, and uses an external PLC controller to control the synchronous motors 37 on both sides. The synchronous motors 37 drive the bidirectional screw 32 to rotate, ensuring that the gas plate adjustment components 3 on both sides move in unison.

[0056] As a further implementation of this scheme, the air disc mechanism 36 includes a connecting shaft 361, which is fixedly connected between two connecting discs 35. The connecting shaft 361 is rotatably connected to the reactor 1. Fastening sleeves 362 are fixedly connected to both sides of the connecting shaft 361. An aeration disc 363 is fixedly connected to the top of the fastening sleeve 362. The two aeration discs 363 are symmetrically distributed from left to right. There is a gap between the aeration disc 363 and the reactor 1. The gap between the aeration disc 363 and the reactor 1 provides sufficient swing space, avoids collision and wear, and expands the bubble coverage area.

[0057] Working process: The oxygen connecting pipe connects to the aeration disc 363, providing oxygen to the aeration disc 363. After the synchronous motor 37 starts, it causes the bidirectional screw 32 to rotate, which can convert the movement of the two push plates 331. Since the connecting seat 340 is connected to the grooved positioning rod 333, the pushing mechanism 33 can drive the connecting piece 34 to move. When the two connecting pieces 34 on one side are at the same horizontal height, the two arms 344 are symmetrically distributed from left to right. At this time, the connecting disc 35 connects to the aeration disc 363 of the air disc mechanism 36, and the aeration disc 363 remains parallel to the bottom of the reactor 1. When the synchronous motor 37 rotates forward or reverse, the two pushing mechanisms 33 move, causing one of the connecting seats 340 to move. 40 is higher than another connecting seat 340. The arm 344 can rotate the connecting plate 35 through the lower seat 345, so that the aeration plate 363 changes angle, thereby changing the direction of oxygen delivery. At the same time, the connecting seat 340 can change the tilt angle of the magnetic attraction and flow guiding mechanism 4 through the strong magnetic block 341. The tilt of the flow guiding mechanism 4 is the same as the tilt direction of the aeration plate 363. Bubbles gather through the flow guiding cover 43. The spike 44 can puncture the large bubbles formed by the rising bubbles. The swinging process of the spike 44 also facilitates the contact between the spike 44 and the bubbles. The flow guiding mechanism 4 is located at the horizontal plane of the liquid inside the reactor 1. After the bubbles burst, the toxic gas is collected at the gas outlet of the sealing cover 2 for recycling.

[0058] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A composite oxidation reactor based on an integrated hydrochloric acid system for arsenic and bromine removal, comprising a reactor (1) and a sealing cap (2), characterized in that: A sealing cover (2) is fixedly installed at the top of the reactor (1), and air plate adjustment components (3) are fixedly installed on both sides of the reactor (1). A flow guiding mechanism (4) is installed between the two air plate adjustment components (3), and the flow guiding mechanism (4) is located at the top inside the reactor (1). The gas disc adjustment component (3) includes two fixed feet (31), which are fixedly connected to the reactor (1) by bolts. A bidirectional screw (32) is rotatably connected between the two fixed feet (31). A pushing mechanism (33) is threadedly connected to the top and bottom of the bidirectional screw (32). A connector (34) is installed on the outside of the pushing mechanism (33). The back of the connector (34) is magnetically attracted to the flow guiding mechanism (4). The same connecting plate (35) is hinged between the two connectors (34). The connecting plate (35) is located at the bottom inside the reactor (1). The axis of the connecting plate (35) is collinear with the axis of the gas disc mechanism (36).

2. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 1, characterized in that: The pushing mechanism (33) includes a push plate (331), and a nut is embedded and fixed in the middle of the inner side of the push plate (331). The push plate (331) is threadedly connected to the bidirectional screw (32) through the nut. A positioning sleeve (332) is fixedly fixed through both sides of the push plate (331). A slotted positioning rod (333) is fixedly connected to the inner side of one of the positioning sleeves (332). The slotted positioning rod (333) extends into the positioning sleeve (332) of the corresponding push plate (331). A positioning groove (334) is opened on both sides of the slotted positioning rod (333).

3. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 2, characterized in that: The connector (34) includes a connector (340), a strong magnet (341) is embedded and fixed on the back of the connector (340), a connecting seat (342) is fixedly connected to the outer wall of the connector (340), an upper seat (343) is hinged to the front end of the connecting seat (342), an arm (344) is fixedly connected to the bottom end of the upper seat (343), a lower seat (345) is fixedly connected to the bottom end of the arm (344), and the two lower seats (345) are respectively hinged to the two sides of the connecting plate (35).

4. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 3, characterized in that: The connecting seat (340) is slidably disposed on the outside of the grooved positioning rod (333), and the rear end face of the connecting seat (340) is in contact with the outside of the reactor (1).

5. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 1, characterized in that: The flow guiding mechanism (4) includes a support plate (41), and two mating rods (42) are fixedly connected to both sides of the support plate (41). Two sets of flow guide shields (43) are fixedly connected to the upper surface of the mating rods (42).

6. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 5, characterized in that: The two mating rods (42) are parallel to each other, the outer side of the mating rods (42) is in contact with the inner side of the reactor (1), and the mating rods (42) are magnetically attracted to the strong magnetic block (341).

7. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 5, characterized in that: Each group of the flow guides (43) is configured as multiple, and the multiple flow guides (43) are arranged sequentially along a linear direction. The top and bottom of the flow guides (43) are both horn-shaped, and multiple spikes (44) arranged in a circular array are fixed in the middle of the inner side of the flow guides (43).

8. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 1, characterized in that: A synchronous motor (37) is fixedly installed on the top of the fixed foot (31) above by a motor mount. The drive shaft of the synchronous motor (37) is fixedly connected to the bidirectional screw (32). The synchronous motor (37) is a right-angle motor.

9. The composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to claim 1, characterized in that: The air disc mechanism (36) includes a connecting shaft (361), which is fixed between two connecting discs (35). The connecting shaft (361) is rotatably connected to the reactor (1). Fastening sleeves (362) are fixedly connected to both sides of the connecting shaft (361). An aeration disc (363) is fixedly connected to the top of the fastening sleeve (362). The two aeration discs (363) are symmetrically distributed from left to right. There is a gap between the aeration discs (363) and the reactor (1).

10. A method of using the composite oxidation reactor based on the integrated hydrochloric acid arsenic and bromine removal system according to any one of claims 1-9, characterized in that: Step 1: Turn on the feed pump and continuously feed the hydrochloric acid to be purified into the reactor (1) at a constant flow rate. The liquid level in the reactor (1) is kept stable below the flow guide mechanism (4) and completely submerged in the aeration disc (363) by the liquid level self-control system. Step 2: Turn on the external oxygen source and supply oxygen continuously and stably to the aeration plate (363) of the air plate mechanism (36) through the pipeline. The oxygen forms uniform and fine bubbles through the micropores. In the initial state, the aeration plate (363) is adjusted to be parallel to the bottom of the reactor (1) so that the hydrochloric acid will undergo an oxidation reaction immediately after entering the reactor (1), oxidizing trivalent arsenic to pentavalent arsenic and bromide ions to elemental bromine. Step 3: Start the synchronous motors (37) on both sides, drive the bidirectional screw (32) to run continuously through the synchronous controller, drive the push mechanism (33) and the connecting piece (34) to rise and fall periodically, so that the left and right connecting seats (340) form an alternating height difference, drive the connecting plate (35) and the connecting shaft (361) to rotate continuously back and forth, so that the aeration plate (363) can tilt continuously left and right within the range of 0°-30°, and the bubbles sweep across the inner wall area of ​​the reactor (1) in a directional manner; Step 4: The strong magnetic block (341) of the connector (34) magnetically engages with the flow guiding mechanism (4), driving the connecting rod (42) and the flow guiding hood (43) to swing synchronously and continuously with the aeration disc (363); the rising bubbles gather through the flow guiding hood (43) and are continuously punctured and split into microbubbles by the piercing cone (44).

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