Mbbm buoyancy balance filler

Abstract

The application discloses MBBR buoyancy balance filler, solves the technical problem of narrow raw material selection and high production cost in the production of existing suspended filler. It comprises a spherical structure, a buoyancy ball installed at the center of the spherical structure, and a buoyancy balance mechanism arranged on the outer wall of the spherical structure. The buoyancy balance mechanism has two, one of which is distributed on the outer wall of the top of the spherical structure, and the other is distributed on the outer wall of the bottom of the spherical structure. Unlike the existing filler which relies on density close to water to suspend in water, the structure of the application relies on the balance between the buoyancy of the filler and the gravity of the filler to suspend in water. The structure of the application makes the production of the filler no longer limited by the density of the raw material, and the selection of the raw material is wide. During production, low-cost raw materials can be selected, which can reduce the production cost of the filler.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically relating to an MBBR buoyancy balancing packing. Background Technology

[0002] MBBR is a moving bed bioreactor. When using MBBR for wastewater treatment, several suspended media with a density close to that of water are added to the water body to serve as carriers for microbial attachment and growth. Under aeration or stirring, the suspended media move with the water flow and are in a fluidized state. The position of the suspended media changes continuously and is distributed throughout the entire water body. The microorganisms attached to the suspended media are distributed throughout the entire water body as the suspended media moves. During the process of microorganisms attaching to the carrier and growing and reproducing, they consume toxic and harmful substances in the wastewater, thereby purifying the wastewater.

[0003] Most existing suspended packing materials are solid structures. In order to ensure that the suspended packing material can move with the water flow and remain in a fluidized state, that is, to ensure that the density of the suspended packing material is close to that of water, the density of the suspended packing material must be strictly controlled during the production process. This results in a greater emphasis on the density of raw materials during the production of suspended packing materials, a narrower range of raw material selection, and higher production costs. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide an MBBR buoyancy balance packing material, which solves the technical problems of narrow raw material selection and high production cost in the production of existing suspension packing materials.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An MBBR buoyancy balancing filler includes a spherical structure, a buoyancy ball installed at the center of the spherical structure, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure, and the other of which is distributed on the outer wall of the bottom end of the spherical structure.

[0007] Furthermore, the buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure; the buoyancy adjustment mechanism includes a support plate on the outer wall of the spherical structure, a protective plate on the support plate, and several buoyancy bubbles installed between the support plate and the protective plate.

[0008] Furthermore, the buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns respectively disposed on both sides of the buoyancy bubble, and two fixed columns respectively disposed on the outer wall of the support plate and the inner wall of the protective plate and respectively corresponding to the two connecting columns; the support plate and the protective plate are respectively fixed in the corresponding fixed columns through the corresponding connecting columns and connected to the buoyancy bubble.

[0009] Furthermore, the fixed column has a guide hole adapted to the connecting column, the fixed column has a limiting cavity communicating with the guide hole, and the connecting column has two limiting mechanisms corresponding to the limiting cavity; the connecting column is limited in the limiting cavity by the limiting mechanism and locked in the fixed column.

[0010] Furthermore, the limiting mechanism includes a mounting groove formed on the bottom end of the connecting column, and a spring with one end fixed inside the mounting groove and the other end extending outside the mounting groove.

[0011] Furthermore, a screw is provided on the inner wall of the mounting groove, and the spring is provided with an assembly through hole that matches the screw. The screw passes through the assembly through hole, and a fixing nut is threaded onto the screw. The spring is fixed to the screw by the fixing nut.

[0012] Furthermore, a buffer block is provided on one end of the connecting column located inside the limiting cavity.

[0013] Furthermore, a mounting cavity is provided at the center of the spherical structure, and the buoyancy ball is placed inside the mounting cavity. A first connecting plate and a second connecting plate are connected between the outer wall of the buoyancy ball and the inner wall of the mounting cavity. The first connecting plate and the second connecting plate are an integral structure.

[0014] Furthermore, the spherical structure has several through holes that connect the outer wall of the spherical structure and the inner wall of the mounting cavity.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention features a simple structure, a scientifically sound design, and ease of use. It imparts buoyancy to the packing material through a buoyancy ball, and the buoyancy adjustment mechanism fine-tunes this buoyancy to balance the packing material's buoyancy with its weight. Unlike existing packing materials that rely on a density close to water to suspend themselves in water, this invention's structure suspends itself in water by balancing the packing material's buoyancy with its weight. This structure frees packing material production from the limitations of raw material density, allowing for a wider range of raw material choices. This invention can be manufactured using various types of raw materials; the balance between buoyancy and weight is achieved by selecting different materials. Furthermore, lower-priced raw materials can be chosen during production, thus reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the vertical cross-section of the structure of the present invention.

[0018] Figure 2 This is a magnified view of area A.

[0019] Figure 3 This is a cross-sectional view of the connecting column.

[0020] Figure 4This is a magnified view of area B.

[0021] Figure 5 This is a cross-sectional view of a fixed column.

[0022] Figure 6 This is a schematic diagram of the connecting column sliding within the guide hole.

[0023] Figure 7 This is a schematic diagram showing the connecting column being secured inside the fixed column.

[0024] Figure 8 This is a top view of the buoyancy adjustment mechanism's distribution on the spherical structure.

[0025] Figure 9 This is a bottom-view diagram showing the distribution of the buoyancy adjustment mechanism on the spherical structure.

[0026] Figure 10 This is a rear view showing the first and second connecting plates connected to the buoyancy ball, respectively.

[0027] Figure 11 This is a schematic diagram of the through hole on the spring.

[0028] The names corresponding to the reference numerals in the attached figures are as follows:

[0029] 1-Spherical structure, 2-Buoyancy ball, 3-Support plate, 4-Protective plate, 5-Buoyancy bubble, 6-Connecting column, 7-Fixing column, 8-Guide through hole, 9-Limiting cavity, 10-Mounting groove, 11-Spring, 12-Fixing nut, 13-Buffer block, 14-Mounting cavity, 15-First connecting plate, 16-Second connecting plate, 17-Screw, 18-Assembly through hole, 19-Through hole, 20-Step. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example 1

[0033] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0034] This invention features a simple structure, a scientifically sound design, and ease of use. It imparts buoyancy to the packing material via a buoyancy ball 2, and fine-tunes this buoyancy through a buoyancy adjustment mechanism, balancing the packing's buoyancy with its weight. Unlike existing packing materials that rely on a density close to water to suspend themselves in water, this invention's structure suspends itself in water by balancing the packing's buoyancy with its weight. This structure frees packing production from the limitations of raw material density, allowing for a wider range of raw material choices. The structure can be manufactured using various types of raw materials; simply balancing the packing's buoyancy with its weight is sufficient. Furthermore, lower-priced raw materials can be selected during production, thus reducing production costs. Example 2

[0035] like Figure 1-11As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0036] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0037] In this embodiment 2, the number of buoyancy bubbles 5 on the packing is adjusted based on the difference between the buoyancy of the buoyancy ball 2 and the overall weight of the packing. This adjustment of the number of buoyancy bubbles 5 fine-tunes the overall buoyancy of the packing, balancing the packing buoyancy with its weight. The protective plate 4 protects the buoyancy bubbles 5, preventing them from being collided with by other packing materials when the packing is in a fluidized state, thus improving the service life of the buoyancy bubbles 5.

[0038] In this embodiment 2, when the buoyancy of the packing is finely adjusted by the buoyancy adjustment mechanism to balance the buoyancy of the packing with the weight of the packing, the weight of the buoyancy adjustment mechanism itself needs to be considered.

[0039] Buoyancy bubble 5 is made of polycarbonate, which has high toughness and strength, and is highly impact-resistant. Buoyancy bubble 5 has a hollow interior forming a cavity. Example 3

[0040] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0041] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0042] The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns 6 located on both sides of the buoyancy bubble 5, and two fixing columns 7 located on the outer wall of the support plate 3 and the inner wall of the protective plate 4, respectively, and corresponding one-to-one with the two connecting columns 6; the support plate 3 and the protective plate 4 are respectively fixed in the corresponding fixing columns 7 through the corresponding connecting columns 6 and connected to the buoyancy bubble 5. Example 4

[0043] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0044] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0045] The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns 6 located on both sides of the buoyancy bubble 5, and two fixing columns 7 located on the outer wall of the support plate 3 and the inner wall of the protective plate 4, respectively, and corresponding one-to-one with the two connecting columns 6; the support plate 3 and the protective plate 4 are respectively fixed in the corresponding fixing columns 7 through the corresponding connecting columns 6 and connected to the buoyancy bubble 5.

[0046] The fixed column 7 has a guide hole 8 that is adapted to the connecting column 6. The fixed column 7 has a limiting cavity 9 that communicates with the guide hole 8. The connecting column 6 has two limiting mechanisms that correspond to the limiting cavity 9. The connecting column 6 is limited in the limiting cavity 9 by the limiting mechanism and is locked in the fixed column 7. Example 5

[0047] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0048] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0049] The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns 6 located on both sides of the buoyancy bubble 5, and two fixing columns 7 located on the outer wall of the support plate 3 and the inner wall of the protective plate 4, respectively, and corresponding one-to-one with the two connecting columns 6; the support plate 3 and the protective plate 4 are respectively fixed in the corresponding fixing columns 7 through the corresponding connecting columns 6 and connected to the buoyancy bubble 5.

[0050] The fixed column 7 has a guide hole 8 that is adapted to the connecting column 6. The fixed column 7 has a limiting cavity 9 that communicates with the guide hole 8. The connecting column 6 has two limiting mechanisms that correspond to the limiting cavity 9. The connecting column 6 is limited in the limiting cavity 9 by the limiting mechanism and is locked in the fixed column 7.

[0051] The limiting mechanism includes a mounting groove 10 opened on the bottom end of the connecting column 6, and a spring 11 with one end fixed inside the mounting groove 10 and the other end extending outside the mounting groove 10.

[0052] In this embodiment 5, a step 20 adapted to the spring 11 is formed at the position where the limiting cavity 9 connects with the guide through hole 8. When the connecting post 6 is locked in the fixing post 7, the connecting post 6 passes through the guide through hole 8 and the spring 11 is limited to the step 20.

[0053] When securing the connecting post 6 into the fixing post 7, first insert the bottom end of the connecting post 6 into the guide through hole 8 along the top end of the guide through hole 8. During the process of the connecting post 6 extending into the guide through hole 8, the inner wall of the guide through hole 8 applies pressure to the spring plate 11 on the connecting post 6. The spring plate 11 is squeezed into the mounting groove 10 by the inner wall of the guide through hole 8. Then, the connecting post 6 slides smoothly in the guide through hole 8 until the bottom end of the connecting post 6 extends into the limiting cavity 9 and the inner wall of the guide through hole 8 releases the pressure on the spring plate 11. At this time, the spring plate 11 pops out from the mounting groove 10 and is limited to the step 20. In this way, the connecting post 6 is secured into the fixing post 7.

[0054] During installation, first connect the buoyancy bubble to the support plate 3, and then connect the protective plate 4 to the buoyancy bubble. Example 6

[0055] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0056] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0057] The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns 6 located on both sides of the buoyancy bubble 5, and two fixing columns 7 located on the outer wall of the support plate 3 and the inner wall of the protective plate 4, respectively, and corresponding one-to-one with the two connecting columns 6; the support plate 3 and the protective plate 4 are respectively fixed in the corresponding fixing columns 7 through the corresponding connecting columns 6 and connected to the buoyancy bubble 5.

[0058] The fixed column 7 has a guide hole 8 that is adapted to the connecting column 6. The fixed column 7 has a limiting cavity 9 that communicates with the guide hole 8. The connecting column 6 has two limiting mechanisms that correspond to the limiting cavity 9. The connecting column 6 is limited in the limiting cavity 9 by the limiting mechanism and is locked in the fixed column 7.

[0059] The limiting mechanism includes a mounting groove 10 opened on the bottom end of the connecting column 6, and a spring 11 with one end fixed inside the mounting groove 10 and the other end extending outside the mounting groove 10.

[0060] A screw 17 is provided on the inner wall of the mounting groove 10. The spring 11 is provided with a mounting through hole 18 that is adapted to the screw 17. The screw 17 passes through the mounting through hole 18. A fixing nut 12 is threaded onto the screw 17. The spring 11 is fixed to the screw 17 by the fixing nut 12. Example 7

[0061] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0062] The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed circumferentially on the outer wall of the spherical structure 1; the buoyancy adjustment mechanism includes a support plate 3 on the outer wall of the spherical structure 1, a protective plate 4 on the support plate 3, and several buoyancy bubbles 5 installed between the support plate 3 and the protective plate 4.

[0063] The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns 6 located on both sides of the buoyancy bubble 5, and two fixing columns 7 located on the outer wall of the support plate 3 and the inner wall of the protective plate 4, respectively, and corresponding one-to-one with the two connecting columns 6; the support plate 3 and the protective plate 4 are respectively fixed in the corresponding fixing columns 7 through the corresponding connecting columns 6 and connected to the buoyancy bubble 5.

[0064] The fixed column 7 has a guide hole 8 that is adapted to the connecting column 6. The fixed column 7 has a limiting cavity 9 that communicates with the guide hole 8. The connecting column 6 has two limiting mechanisms that correspond to the limiting cavity 9. The connecting column 6 is limited in the limiting cavity 9 by the limiting mechanism and is locked in the fixed column 7.

[0065] A buffer block 13 is provided on one end of the connecting column 6 located inside the limiting cavity 9.

[0066] In this embodiment 7, when the protective plate 4 on the packing is hit by other packing, the buffer block 13 can buffer the impact force on the protective plate 4, preventing the impact force transmitted from the protective plate 4 from having a significant impact on the structure of the buoyancy bubble 5 or the packing as a whole. Example 8

[0067] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0068] The spherical structure 1 has an installation cavity 14 at its center, and the buoyancy ball 2 is located inside the installation cavity 14. The outer wall of the buoyancy ball 2 is connected to the inner wall of the installation cavity 14 by a first connecting plate 15 and a second connecting plate 16, which are integral structures.

[0069] In this embodiment 8, the buoyancy ball 2 is connected to the spherical structure 1 through the first connecting plate 15 and the second connecting plate 16, and the first connecting plate 15 and the second connecting plate 16 stabilize the buoyancy ball 2 at the center of the spherical structure 1. Example 9

[0070] like Figure 1-11 As shown, the present invention provides an MBBR buoyancy balancing filler, including a spherical structure 1, a buoyancy ball 2 installed at the center of the spherical structure 1, and a buoyancy balancing mechanism disposed on the outer wall of the spherical structure 1; there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top end of the spherical structure 1, and the other of which is distributed on the outer wall of the bottom end of the spherical structure 1.

[0071] The spherical structure 1 has an installation cavity 14 at its center, and the buoyancy ball 2 is located inside the installation cavity 14. The outer wall of the buoyancy ball 2 is connected to the inner wall of the installation cavity 14 by a first connecting plate 15 and a second connecting plate 16, which are integral structures.

[0072] The spherical structure 1 has several through holes 19 that connect the outer wall of the spherical structure 1 and the inner wall of the mounting cavity 14.

[0073] In this embodiment 9, a number of through holes 19 are radially distributed on the spherical structure 1 along the direction from the center of the spherical structure 1 to the outer wall of the spherical structure 1. The through holes 19 are used to increase the specific surface area of ​​the spherical structure 1, so as to improve the attachment rate of microorganisms on the spherical structure 1.

[0074] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. An MBBR buoyancy balancing packing, characterized in that, It includes a spherical structure (1), a buoyancy ball (2) installed at the center of the spherical structure (1), and a buoyancy balancing mechanism provided on the outer wall of the spherical structure (1); there are two buoyancy balancing mechanisms, one of which is distributed on the outer wall of the top of the spherical structure (1), and the other is distributed on the outer wall of the bottom of the spherical structure (1); The buoyancy balancing mechanism includes several buoyancy adjustment mechanisms evenly distributed around the outer wall of the spherical structure (1); the buoyancy adjustment mechanism includes a support plate (3) on the outer wall of the spherical structure (1), a protective plate (4) on the support plate (3), and several buoyancy bubbles (5) installed between the support plate (3) and the protective plate (4); The buoyancy adjustment mechanism also includes a connecting mechanism; the connecting mechanism includes two connecting columns (6) respectively located on both sides of the buoyancy bubble (5), and two fixing columns (7) respectively located on the outer wall of the support plate (3) and the inner wall of the protective plate (4) and respectively corresponding to the two connecting columns (6); the support plate (3) and the protective plate (4) are respectively fixed in the corresponding fixing columns (7) through the corresponding connecting columns (6) and connected to the buoyancy bubble (5); The fixed column (7) is provided with a guide through hole (8) that is compatible with the connecting column (6). The fixed column (7) is provided with a limiting cavity (9) that communicates with the guide through hole (8). The connecting column (6) is provided with two limiting mechanisms that correspond to the limiting cavity (9). The connecting column (6) is limited in the limiting cavity (9) by the limiting mechanism and is locked in the fixed column (7). The limiting mechanism includes a mounting groove (10) opened on the bottom end of the connecting column (6), and a spring (11) with one end fixed in the mounting groove (10) and the other end extending out of the mounting groove (10). A screw (17) is provided on the inner wall of the mounting groove (10). A mounting through hole (18) adapted to the screw (17) is provided on the spring (11). The screw (17) passes through the mounting through hole (18). A fixing nut (12) is threaded on the screw (17). The spring (11) is fixed to the screw (17) by the fixing nut (12). The spherical structure (1) has an installation cavity (14) at its center. The buoyancy ball (2) is located inside the installation cavity (14). The outer wall of the buoyancy ball (2) is connected to the inner wall of the installation cavity (14) by a first connecting plate (15) and a second connecting plate (16). The first connecting plate (15) and the second connecting plate (16) are an integral structure.

2. The MBBR buoyancy balancing packing according to claim 1, characterized in that, A buffer block (13) is provided on one end of the connecting column (6) located in the limiting cavity (9).

3. The MBBR buoyancy balancing packing according to claim 1, characterized in that, The spherical structure (1) has several through holes (19) that connect the outer wall of the spherical structure (1) and the inner wall of the mounting cavity (14).

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