Microbial fermentation equipment for sewage treatment

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to microbial fermentation equipment for sewage treatment, the microbial fermentation equipment for sewage treatment comprises a tank body, the tank body is internally provided with an aeration assembly and a plurality of combined filler assemblies, the combined packing assembly is formed by sequentially connecting a plurality of packing units from the upper end to the lower end, the upper end of the combined packing assembly is in threaded connection with a gathering bottle, each packing unit comprises an outer ring, an inner ring, a plurality of bundle-shaped packing and a plurality of hollow balls, and the outer ring is arranged in the tank body. The hollow balls are assembled on the outer side of the bunchy filler, a worker can quickly judge the loss state of the filler unit according to the number of the hollow balls gathered in the gathering bottle, and meanwhile, the driving unit is operated to drive the combined filler assembly with loss to move towards the edge of the pool body, so that the loss state of the filler unit is judged. A worker can replace the filler unit at the edge of the tank body, so that the replacement process of the filler unit is simplified.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a microbial fermentation device for sewage treatment. Background Art

[0002] With the acceleration of industrialization and the continuous growth of urban population, the problem of sewage treatment has become more and more prominent. In the current technology, the cultivation of microorganisms in biological fillers in biological pools is an indispensable part of sewage treatment. By placing fillers in the biochemical pool, the microorganisms attached to it can convert organic matter, nitrogen, phosphorus and other pollutants in the sewage into inorganic substances during the fermentation metabolism process. In recent years, due to its high efficiency and low cost, biological filler technology has been widely used in the field of sewage treatment. Biological fillers mainly include soft fillers, semi-soft fillers and combined fillers. However, in practical applications, existing biological fillers still face some problems:

[0003] 1. Semi-soft fillers, also known as "snowflake" fillers, are mainly made of PP and PE and are molded in one step by an injection molding machine. They decompose pollutants by surging with the sewage in the biochemical pool. However, semi-soft fillers are prone to collision, which will not only cause the aging microorganisms to fall off, but also cause the non-aging microorganisms to fall off, thus affecting the efficiency of sewage treatment. Therefore, although the annular filler has improved the sewage treatment efficiency to a certain extent, its efficiency still needs to be further improved.

[0004] 2. Soft fillers (composed of multiple filamentary fillers) and semi-soft fillers (composed of a combination of soft fillers and semi-soft fillers) usually need to be pulled and fixed by a central rope. Once the central rope breaks, the sewage in the biochemical pool must be emptied before it can be replaced, which makes the maintenance process cumbersome and time-consuming. In addition, during the installation and use of soft or semi-soft fillers, the filamentary fillers are prone to breakage. After the existing soft and semi-soft fillers are broken, the broken filamentary fillers will enter the subsequent sewage treatment links with the sewage, making it difficult for staff to judge the loss status of the fillers. At the same time, the area for microbial attachment is reduced, resulting in a decrease in the sewage treatment efficiency of the biochemical pool.

[0005] Based on the above problems, this application document proposes a microbial fermentation device for sewage treatment to improve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a microbial fermentation equipment for sewage treatment. By assembling hollow balls on the outside of the bundled filler, the staff can quickly determine the wear state of the filler unit by counting the number of hollow balls gathered inside the collection bottle. At the same time, by operating the driving unit, the worn combined filler assembly can be driven to move to the edge of the pool body. The staff can replace the filler unit at the edge of the pool body, thereby simplifying the replacement process of the filler unit.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A microbial fermentation device for sewage treatment, comprising a tank body, wherein the interior of the tank body is also equipped with an aeration assembly and a plurality of combined filler assemblies, wherein the combined filler assembly is composed of a plurality of filler units connected in sequence from the upper end to the lower end, wherein the upper end of the combined filler assembly is threadedly connected to a gathering bottle, wherein the filler unit comprises an outer ring, an inner ring, a plurality of bundle fillers and a plurality of hollow balls, wherein the outer ring is arranged inside the tank body, a plurality of avoidance grooves are provided on the side wall of the outer ring, and the outer rings inside two adjacent filler units are threadedly connected, wherein the inner ring is slidably connected to the interior of the outer ring, wherein the plurality of bundle fillers are uniformly fixed on the outer side of the inner ring, wherein the bundle fillers are composed of a plurality of filamentary fillers connected to each other, wherein the plurality of bundle fillers and the plurality of avoidance grooves correspond one to one, and wherein one end of the bundle filler away from the inner ring passes through the avoidance groove and extends to the outer side of the outer ring, wherein the plurality of hollow balls are assembled on the outer side of the bundle filler and are located between the outer ring and the inner ring, and further comprising:

[0009] A plurality of drive units, wherein the plurality of drive units are respectively assembled inside the tank body, and the drive units are connected to the combined filler assembly;

[0010] A plurality of limiting components, wherein the plurality of limiting components are respectively assembled between the combined filler component and the driving unit;

[0011] A guide cavity is formed between the outer ring and the inner ring, and after the filamentous filler inside the bundled filler is broken, the hollow ball floats upward along the guide cavity.

[0012] In a preferred embodiment, the radius of the outer ring is denoted as R1, the radius of the inner ring is denoted as R2, the diameter of the hollow sphere is denoted as D, and D<R1-R2.

[0013] In a preferred embodiment, the end of the bundled filler connected to the inner ring is cylindrical, and the end of the bundled filler away from the inner ring is loose.

[0014] In a preferred embodiment, a plurality of T-shaped limit rods are fixed inside the outer ring, a plurality of guide grooves are provided on the side wall of the inner ring, the plurality of T-shaped limit rods and the plurality of guide grooves correspond one to one, and the corresponding T-shaped limit rods and guide grooves are slidably connected by clearance fit.

[0015] In a preferred embodiment, the upper end of the outer side of the outer ring is provided with an external thread, and the lower end of the inner side of the outer ring is provided with an internal thread. In the same combined packing assembly, the outer rings of two adjacent packing units are connected by matching threads of the external thread and the internal thread.

[0016] In a preferred embodiment, in the combined filler assembly, the outer ring at the uppermost end is threadedly connected to the gathering bottle, and a plurality of air holes are evenly arranged at the upper end of the outer side of the gathering bottle.

[0017] In a preferred embodiment, the material of the aggregation bottle is a transparent material.

[0018] In a preferred embodiment, the driving unit includes four flange seats, two shafts, two first pulleys, two second pulleys, a first transmission belt, a second transmission belt and a handwheel, the four flange seats are symmetrically fixed on both sides of the inside of the pool body, the two shafts are rotatably connected between the two flange seats on the same side, the two first pulleys are respectively fixed to the lower ends of the outer sides of the two shafts, the two second pulleys are respectively fixed to the upper ends of the outer sides of the two shafts, the first transmission belt is assembled on the outer sides of the two first pulleys, the second transmission belt is assembled on the outer sides of the two second pulleys, the handwheel is fixed to the upper end of the outer side of a shaft and is located at the upper end of the pool body, and the first transmission belt and the limit assembly as well as the second transmission belt and the limit assembly are interconnected.

[0019] In a preferred embodiment, the limiting assembly includes a first flange block, a first arc-shaped snap ring, a second arc-shaped snap ring, a second flange block and a base, the first flange block is fixed to the outer side of the second transmission belt, the first arc-shaped snap ring is fixed to the side of the first flange block away from the second transmission belt, the second arc-shaped snap ring is rotatably connected to the side of the first flange block away from the second transmission belt, and the first arc-shaped snap ring and the second arc-shaped snap ring are adapted to each other, the second flange block is fixed to the outer side of the first transmission belt, the base is fixed to the side of the second flange block away from the second transmission belt, a positioning hole is opened at the lower end of the base, and the inner diameter of the positioning hole is the same as the outer diameter of the lower end of the outer side of the outer ring.

[0020] In a preferred embodiment, a frustum surface is provided at the upper end of the interior of the base.

[0021] The technical effects achieved by the present invention are:

[0022] The present invention arranges bundled fillers on the outside of the outer ring to facilitate microorganisms to attach to the bundled fillers for fermentation and growth. By assembling hollow balls on the outside of the bundled fillers, the hollow balls can float along the inside of the guide cavity and gather inside the gathering bottle after the bundled fillers are broken. The staff can quickly determine the loss state of the filler unit by the number of hollow balls gathered inside the gathering bottle, which is convenient for the staff to quickly and conveniently determine the loss state of the filler unit.

[0023] The present invention uses a threaded connection between multiple outer rings to enable multiple packing units to be connected to each other and form a combined packing assembly, which is convenient for workers to easily replace the worn packing units. Compared with the method of fixing the biological packing by a central rope in the prior art, the maintenance efficiency is improved;

[0024] The present invention rotates the hand wheel to make the first transmission belt and the second transmission belt rotate synchronously, and drive the combined filler assembly to move, so that the combined filler assembly with greater loss can be moved in the direction close to the side wall of the pool body, until the combined filler assembly with greater loss moves to the side wall of the pool body, and the restriction of the clamp on the aggregation bottle is released, the combined filler assembly with greater loss can be removed, and the staff can replace the filler unit at the edge of the pool body. During the replacement process, there is no need to empty the sewage inside the pool body, which simplifies the replacement process and replacement efficiency of the filler unit. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 It is a top view of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the combined packing assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the packing unit of the present invention;

[0029] Figure 5 is a top view of the structure of the packing unit of the present invention;

[0030] Figure 6 is a structural cross-sectional view of a packing unit of the present invention;

[0031] Figure 7 It is a structural exploded diagram of the packing unit of the present invention;

[0032] Figure 8 It is a structural cross-sectional view of the hollow ball of the present invention;

[0033] Fig. 9 is a structural cross-sectional view of the aggregation bottle of the present invention;

[0034] Fig.10 It is a schematic diagram of the assembly of the drive unit and the limit assembly of the present invention;

[0035] Fig.11 is a schematic structural diagram of a drive unit of the present invention;

[0036] Fig.12 It is a structural schematic diagram of the limiting component of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 10. Tank body; 11. Aeration assembly; 12. Combined filler assembly; 13. Aggregation bottle; 14. Air vent;

[0039] 20. Packing unit;

[0040] 21. Outer ring; 22. Inner ring; 23. Bundle filler; 24. Hollow ball; 25. Avoidance groove; 26. Guide cavity; 27. T-shaped limit rod; 28. Guide groove;

[0041] 30. Drive unit;

[0042] 31. flange seat; 32. shaft; 33. first pulley; 34. second pulley; 35. first transmission belt; 36. second transmission belt; 37. hand wheel;

[0043] 40. Limiting assembly;

[0044] 41. First flange block; 42. First arc-shaped snap ring; 43. Second arc-shaped snap ring; 44. Second flange block; 45. Base; 46. Positioning hole; 47. Cone surface. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0049] Please see attached Figures 1 to 8As shown in the figure, it is the first embodiment of the present invention, which provides a microbial fermentation device for sewage treatment, including a tank body 10, wherein both ends of the tank body 10 are respectively provided with an inlet pipe and an outlet pipe (not shown in the figure), sewage can be input into the tank body 10 through the inlet pipe, and the sewage treated by microorganisms can flow out through the outlet pipe to enter the subsequent treatment link, and the interior of the tank body 10 is also equipped with an aeration component 11 and a plurality of combined filler components 12, the combined filler component 12 is composed of a plurality of filler units 20 connected in sequence from the upper end to the lower end, the upper end of the combined filler component 12 is threadedly connected with a gathering bottle 13, and the filler unit 20 includes an outer ring 21, an inner ring 22, a plurality of bundle fillers 23 and a plurality of air The core ball 24 and the outer ring 21 are arranged inside the pool body 10, and the side wall of the outer ring 21 is annularly provided with a plurality of avoidance grooves 25, and the outer rings 21 inside two adjacent packing units 20 are threadedly connected, and the inner ring 22 is slidably connected to the inside of the outer ring 21, and a plurality of bundled packings 23 are evenly fixed on the outside of the inner ring 22, and the bundled packings 23 are composed of a plurality of filamentary packings connected to each other, and the plurality of bundled packings 23 and the plurality of avoidance grooves 25 correspond one to one, and one end of the bundled packing 23 away from the inner ring 22 passes through the avoidance groove 25 and extends to the outside of the outer ring 21, and a plurality of hollow balls 24 are assembled on the outside of the bundled packing 23 and are located between the outer ring 21 and the inner ring 22, and the bundled packing 23 can limit the hollow balls 24, and also includes:

[0050] A plurality of driving units 30, wherein the plurality of driving units 30 are respectively assembled inside the tank body 10, and the driving units 30 are connected to the combined filler assembly 12, and the driving units 30 can drive the combined filler assembly 12 to move;

[0051] A plurality of limiting components 40, wherein the plurality of limiting components 40 are respectively assembled between the combined filling component 12 and the driving unit 30, and the plurality of limiting components 40 and the plurality of combined filling components 12 correspond one to one, and the limiting components 40 can fix the combined filling component 12;

[0052] A guide cavity 26 is formed between the outer ring 21 and the inner ring 22 , and after the filamentous filler inside the bundle-shaped filler 23 is broken, the hollow ball 24 floats upward along the guide cavity 26 .

[0053] It should be noted that a through hole is formed inside the hollow ball 24 , and the bundled filler 23 passes through the inside of the through hole.

[0054] In this embodiment, oxygen is input into the biochemical pool through the aeration component 11, and the microorganisms in the biochemical pool are fermented and grown according to the existing microbial fermentation method. After the microorganisms form a film on the surface of the combined filler component 12, sewage is input into the pool body 10 through the water inlet pipe, and the organic matter, nitrogen, phosphorus and other pollutants in the sewage are converted into inorganic substances by the microorganisms. During the installation or sewage treatment process, if the filamentary filler in the bundle filler 23 is broken, the broken filamentary filler will follow the sewage into the subsequent process. At the same time, the bundle filler 23 after the filamentary filler is broken can no longer limit the hollow ball 24. The hollow ball 24 floats upward along the guide cavity 26 and gathers inside the gathering bottle 13. The staff can quickly determine the loss state of the filler unit 20 inside the combined filler component 12 by the number of hollow balls 24 gathered inside the gathering bottle 13.

[0055] Next, in a preferred embodiment, the radius of the outer ring 21 is denoted as R1, the radius of the inner ring 22 is denoted as R2, and the diameter of the hollow ball 24 is denoted as D, where D<R1-R2.

[0056] In this embodiment, through the above-mentioned arrangement, after the filamentary filler inside the bundle filler 23 breaks, the hollow ball 24 can smoothly float upward along the inside of the guide cavity 26 and gather inside the gathering bottle 13, thereby preventing the hollow ball 24 from being stuck by the outer ring 21 and the inner ring 22.

[0057] Secondly, please also refer to Figure 4 , the end of the bundled filler 23 connected to the inner ring 22 is cylindrical, and the end of the bundled filler 23 away from the inner ring 22 is in a loose state;

[0058] Here, in order to make the drawings concise and clear, the bundled fillers 23 in the drawings are block-shaped structures. In actual applications, the bundled fillers 23 are loose filaments.

[0059] In this embodiment, the loose end of the bundle filler 23 passes through the avoidance groove 25 and extends to the outside of the outer ring 21, which can simulate the shape of natural aquatic plants and has the advantages of large specific surface area, high utilization rate, variable gaps without blockage, etc.

[0060] Secondly, please refer again to Figures 5 to 7 As shown, a plurality of T-shaped limit rods 27 are fixed inside the outer ring 21, and a plurality of guide grooves 28 are opened on the side wall of the inner ring 22. The plurality of T-shaped limit rods 27 and the plurality of guide grooves 28 correspond one to one, and the corresponding T-shaped limit rods 27 and guide grooves 28 are slidably connected by means of clearance fit.

[0061] In this embodiment, through the above-mentioned arrangement, during the tumbling of sewage, the clearance between the T-shaped limit rod 27 and the guide groove 28 allows the inner ring 22 to sway slightly inside the outer ring 21. Through the swaying of the inner ring 22, the aged microorganisms attached to the surface of the inner ring 22 can fall off quickly, making it easier for new microorganisms to attach to the surface of the inner ring 22, thereby ensuring the sewage treatment efficiency of the microorganisms on the surface of the inner ring 22.

[0062] Please refer again Figure 6 and Figure 7 As shown, the upper end of the outer side of the outer ring 21 is provided with an external thread, and the lower end of the inner side of the outer ring 21 is provided with an internal thread. In the same combined packing assembly 12, the outer rings 21 inside two adjacent packing units 20 are connected by the matching threads of the external thread and the internal thread.

[0063] In this embodiment, in order to better describe the working state of the device, the packing unit 20 with greater loss is recorded as A, the packing unit 20 located at the upper end of A is recorded as B, and the packing unit 20 located at the lower end of A is recorded as C. When A needs to be replaced, the threaded connection between the outer ring 21 in A and the outer ring 21 in B is released, and then the threaded connection between the outer ring 21 in A and the outer ring 21 in C is released. A can be removed from the combined packing assembly 12, and then the outer ring 21 in the new packing unit 20 is threadedly connected with the outer ring 21 in B and the outer ring 21 in C in turn to complete the replacement of the packing unit 20.

[0064] Please refer again Figure 3 and Fig. 9 As shown, in the combined filler assembly 12, the outer ring 21 at the uppermost end is threadedly connected to the gathering bottle 13, and a plurality of air holes 14 are evenly opened at the upper end of the outer side of the gathering bottle 13.

[0065] It should be noted that, in the present embodiment, the lower end of the air hole 14 is cylindrical, the upper end of the air hole 14 is spherical, and during the sewage treatment process, the air hole 14 is located at the upper end of the sewage liquid surface.

[0066] Furthermore, in this embodiment, the color of the surface of the hollow ball 24 is preferably a color that can be easily identified in sewage, such as yellow, red or other easily identified colors, so that the staff can easily identify it.

[0067] In this embodiment, during the sewage treatment process, the provision of the air holes 14 can ensure that the water level inside the collection bottle 13 is consistent with the water level inside the pool body 10, making it easy for staff to observe the hollow balls 24 inside the collection bottle 13.

[0068] In a preferred embodiment, the material of the collecting bottle 13 is a transparent material.

[0069] In this embodiment, the transparent collecting bottle 13 allows the staff to observe the inside of the collecting bottle 13 and further determine the degree of loss of the filling unit 20 according to the number of the hollow balls 24 .

[0070] Please refer again Fig.10 and Fig.11 As shown, the driving unit 30 includes four flange seats 31, two shafts 32, two first pulleys 33, two second pulleys 34, a first transmission belt 35, a second transmission belt 36 and a handwheel 37. The four flange seats 31 are symmetrically fixed on both sides of the inside of the pool body 10, and the two shafts 32 are respectively rotatably connected between the two flange seats 31 on the same side. The two first pulleys 33 are respectively fixed to the lower ends of the outer sides of the two shafts 32, and the two second pulleys 34 are respectively fixed to the upper ends of the outer sides of the two shafts 32. The first transmission belt 35 is assembled on the outer sides of the two first pulleys 33, and the second transmission belt 36 is assembled on the outer sides of the two second pulleys 34. The handwheel 37 is fixed to the upper end of the outer side of a shaft 32 and is located at the upper end of the pool body 10, and the first transmission belt 35 and the limiting assembly 40 as well as the second transmission belt 36 and the limiting assembly 40 are interconnected.

[0071] In this embodiment, when there are many hollow balls 24 gathered inside any gathering bottle 13, it means that the packing unit 20 in the combined packing assembly 12 corresponding to the gathering bottle 13 is worn out to a large extent, and the packing unit 20 needs to be replaced. The hand wheel 37 is turned to drive the shaft 32 to rotate. Since the shaft 32 and the first pulley 33 and the shaft 32 and the second pulley 34 are fixedly connected, the shaft 32 drives the first pulley 33 and the second pulley 34 to rotate, and then drives the first transmission belt 35 through the first pulley 33 and the second pulley 34. The first transmission belt 35 and the second transmission belt 36 rotate, and the limit assembly 40 and the combined filler assembly 12 are driven to move synchronously through the first transmission belt 35 and the second transmission belt 36, so that the combined filler assembly 12 with greater wear moves toward the edge of the pool body 10 until the staff can replace the combined filler assembly 12 at the edge of the pool body 10. The setting of the drive unit 30 allows the staff to easily replace the filler unit 20 with greater wear without emptying the sewage inside the pool body 10, which greatly simplifies the steps of replacing the filler unit 20 and improves the maintenance efficiency.

[0072] Please refer again Fig.10 and Fig.12As shown, the limiting assembly 40 includes a first flange block 41, a first arc-shaped snap ring 42, a second arc-shaped snap ring 43, a second flange block 44 and a base 45. The first flange block 41 is fixed to the outer side of the second transmission belt 36, the first arc-shaped snap ring 42 is fixed to the side of the first flange block 41 away from the second transmission belt 36, the second arc-shaped snap ring 43 is rotatably connected to the side of the first flange block 41 away from the second transmission belt 36, and the first arc-shaped snap ring 42 and the second arc-shaped snap ring 43 are adapted to each other, the second flange block 44 is fixed to the outer side of the first transmission belt 35, the base 45 is fixed to the side of the second flange block 44 away from the second transmission belt 36, and a positioning hole 46 is opened at the lower end of the base 45, and the inner diameter of the positioning hole 46 is the same as the outer diameter of the lower end of the outer side of the outer ring 21.

[0073] Here, in this embodiment, a fastening bolt is arranged between the first arc-shaped clamping ring 42 and the second arc-shaped clamping ring 43, and a clamp is formed by the cooperation of the first arc-shaped clamping ring 42, the second arc-shaped clamping ring 43 and the fastening bolt. The clamp is adapted to the aggregation bottle 13, and the clamp can limit the combined filler assembly 12 through the aggregation bottle 13.

[0074] In this embodiment, when replacing the filling unit 20, the fastening bolts between the first arc-shaped clamping ring 42 and the second arc-shaped clamping ring 43 are rotated to release the limiting position of the clamp on the aggregation bottle 13, and the combined filling assembly 12 to be replaced is taken out, and the fracture condition of the bundled filling 23 inside the filling unit 20 is checked one by one, and the filling unit 20 with greater loss is replaced. After the replacement is completed, the lower end of the combined filling assembly 12 is inserted into the positioning hole 46, and the clamp is used to limit the aggregation bottle 13 again to complete the replacement of the filling unit 20.

[0075] Please refer again Fig.12 A frustum surface 47 is formed at the upper end of the base 45 .

[0076] In this embodiment, after the packing unit 20 is replaced, the lower end of the combined packing assembly 12 is inserted into the positioning hole 46. The setting of the conical surface 47 can guide the lower end of the combined packing assembly 12 so that the lower end of the combined packing assembly 12 can easily enter the positioning hole 46, thereby preventing sewage from affecting the staff's line of sight.

[0077] The working principle of the present invention is:

[0078] Oxygen is input into the biochemical pool through the aeration component 11, so that the microorganisms in the biochemical pool ferment and grow. After the microorganisms form a film on the surface of the combined filler component 12, sewage is input into the pool body 10 through the water inlet pipe. The organic matter, nitrogen, phosphorus and other pollutants in the sewage are converted into inorganic substances by the microorganisms. During the installation or sewage treatment process, if the filamentary filler in the bundle filler 23 is broken, the broken filamentary filler will follow the sewage into the subsequent process. At the same time, the bundle filler 23 after the filamentary filler is broken can no longer limit the hollow ball 24, and the hollow ball 24 moves along the guide cavity 26. The hollow balls 24 float upward and gather inside the gathering bottle 13. The staff can quickly determine the wear state of the filling unit 20 inside the combined filling assembly 12 by the number of hollow balls 24 gathered inside the gathering bottle 13. The staff can operate the driving unit 30 corresponding to the combined filling assembly 12 to drive the combined filling assembly 12 toward the pool body 10 through the driving unit 30 until the combined filling assembly 12 moves to the edge of the pool body 10. The clamp limiting the gathering bottle 13 can be released, and the combined filling assembly 12 can be removed and the filling unit 20 can be replaced.

[0079] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. A microbial fermentation device for sewage treatment, characterized in that: The invention comprises a tank body (10), wherein the interior of the tank body (10) is also equipped with an aeration assembly (11) and a plurality of combined filler assemblies (12), wherein the combined filler assembly (12) is composed of a plurality of filler units (20) connected in sequence from the upper end to the lower end, wherein the upper end of the combined filler assembly (12) is threadedly connected to a gathering bottle (13), wherein the filler unit (20) comprises an outer ring (21), an inner ring (22), a plurality of bundled fillers (23) and a plurality of hollow balls (24), wherein the outer ring (21) is arranged inside the tank body (10), and a plurality of avoidance grooves (25) are provided on the side wall of the outer ring (21), and two adjacent filler units (20) are connected to each other. The outer ring (21) inside the material unit (20) is threadedly connected, the inner ring (22) is slidably connected to the inside of the outer ring (21), a plurality of the bundled fillers (23) are evenly fixed on the outside of the inner ring (22), the bundled fillers (23) are composed of a plurality of filamentary fillers connected to each other, the plurality of the bundled fillers (23) and the plurality of avoidance grooves (25) correspond one to one, and one end of the bundled fillers (23) away from the inner ring (22) passes through the avoidance groove (25) and extends to the outside of the outer ring (21), a plurality of the hollow balls (24) are assembled on the outside of the bundled fillers (23) and are located between the outer ring (21) and the inner ring (22), and further comprises: A plurality of drive units (30), wherein the plurality of drive units (30) are respectively assembled inside the pool body (10), and the drive units (30) are connected to the combined filler assembly (12); A plurality of limiting assemblies (40), wherein the plurality of limiting assemblies (40) are respectively assembled between the combined filler assembly (12) and the driving unit (30); A guide cavity (26) is formed between the outer ring (21) and the inner ring (22), and after the filamentous filler inside the bundled filler (23) breaks, the hollow ball (24) floats upward along the guide cavity (26).

2. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: The radius of the outer ring (21) is denoted as R1, the radius of the inner ring (22) is denoted as R2, and the diameter of the hollow ball (24) is denoted as D, where D<R1-R2.

3. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: The end of the bundled filler (23) connected to the inner ring (22) is cylindrical, and the end of the bundled filler (23) away from the inner ring (22) is in a loose state.

4. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: A plurality of T-shaped limit rods (27) are fixed inside the outer ring (21), and a plurality of guide grooves (28) are provided on the side wall of the inner ring (22). The plurality of T-shaped limit rods (27) and the plurality of guide grooves (28) correspond one to one, and the corresponding T-shaped limit rods (27) and the guide grooves (28) are slidably connected by means of clearance fit.

5. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: The upper end of the outer side of the outer ring (21) is provided with an external thread, and the lower end of the inner side of the outer ring (21) is provided with an internal thread. In the same combined packing assembly (12), the outer rings (21) inside two adjacent packing units (20) are connected by matching threads of the external thread and the internal thread.

6. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: In the combined filler assembly (12), the outer ring (21) at the uppermost end is threadedly connected to the gathering bottle (13), and a plurality of air holes (14) are evenly arranged at the upper end of the outer side of the gathering bottle (13).

7. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: The material of the gathering bottle (13) is a transparent material.

8. The microbial fermentation equipment for sewage treatment according to claim 1, characterized in that: The driving unit (30) comprises four flange seats (31), two shafts (32), two first pulleys (33), two second pulleys (34), a first transmission belt (35), a second transmission belt (36) and a hand wheel (37). The four flange seats (31) are symmetrically fixed on both sides of the interior of the pool body (10). The two shafts (32) are rotatably connected between the two flange seats (31) on the same side. The two first pulleys (33) are respectively fixed to the lower ends of the outer sides of the two shafts (32). The second pulleys (34) are respectively fixed to the upper ends of the outer sides of the two shafts (32); the first transmission belt (35) is mounted on the outer sides of the two first pulleys (33); the second transmission belt (36) is mounted on the outer sides of the two second pulleys (34); the handwheel (37) is fixed to the upper end of the outer side of a shaft (32) and is located at the upper end of the pool body (10); and the first transmission belt (35) and the limiting assembly (40) as well as the second transmission belt (36) and the limiting assembly (40) are interconnected.

9. The microbial fermentation equipment for sewage treatment according to claim 8, characterized in that: The limiting assembly (40) comprises a first flange block (41), a first arc-shaped snap ring (42), a second arc-shaped snap ring (43), a second flange block (44) and a base (45), wherein the first flange block (41) is fixed to the outer side of the second transmission belt (36), the first arc-shaped snap ring (42) is fixed to the side of the first flange block (41) away from the second transmission belt (36), the second arc-shaped snap ring (43) is rotatably connected to the side of the first flange block (41) away from the second transmission belt (36), and the first arc-shaped snap ring (42) and the second arc-shaped snap ring (43) are adapted to each other, the second flange block (44) is fixed to the outer side of the first transmission belt (35), the base (45) is fixed to the side of the second flange block (44) away from the second transmission belt (36), and a positioning hole (46) is provided at the lower end of the base (45), and the inner diameter of the positioning hole (46) is the same as the outer diameter of the lower end of the outer side of the outer ring (21).

10. The microbial fermentation equipment for sewage treatment according to claim 9, characterized in that: The upper end of the base (45) is provided with a frustum surface (47).

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