Biofilm reactor filler
By designing an enlarged inner ring shape and a cross-shaped pipe connection hole structure for the biofilm reactor packing, combined with fiber bouquets, the problems of microorganisms being easily washed away and limited contact surface were solved, enabling rapid microbial reproduction and efficient wastewater treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG BINUO ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cylindrical biofilm reactor packing materials are prone to washing away microorganisms in wastewater treatment, resulting in slow cultivation rates and limited contact area with wastewater, leading to poor treatment effects.
A biofilm reactor packing material was designed, comprising an outer ring cylinder, an inner ring cylinder, a cross-shaped pipe, and a fiber bouquet. The enlarged shape of the inner ring cylinder and the connecting hole structure of the cross-shaped pipe enhance the cultivation speed and diffusion of microorganisms, while the fiber bouquet increases the contact area with wastewater.
It improves the cultivation speed of microorganisms and the efficiency of wastewater treatment, increases the contact area between microorganisms and wastewater, and enhances the wastewater treatment effect.
Smart Images

Figure CN224242855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packing technology, and in particular to a packing material for a biofilm reactor. Background Technology
[0002] A biofilm reactor is a reactor in which various packing materials are added to allow microorganisms to attach and grow, forming a biological membrane-like structure on the packing materials. Packing materials generally refer to materials that are filled into other objects. In the field of wastewater treatment, they are mainly used in contact oxidation processes. Microorganisms accumulate on the surface of the packing materials to increase the surface contact with wastewater and degrade the wastewater.
[0003] Most existing packing materials are cylindrical structures, and microorganisms are usually cultured on a fixed culture plate inside the cavity. Under the continuous flushing of sewage, microorganisms are easily washed away from the culture plate, which will cause the microorganisms to grow slowly. In addition, the contact area between the culture plate and the sewage is limited, resulting in poor sewage treatment effect. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a biofilm reactor packing material.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A biofilm reactor packing includes an outer ring cylinder and a connecting rod on the outer side of the outer ring cylinder. An inner ring cylinder is disposed in the middle of the outer ring cylinder. Cross-shaped pipes are installed at equal intervals in the middle of the inner ring cylinder. The interior of the cross-shaped pipes is hollow. A culture tube is fixedly installed between the outer side of the inner ring cylinder and the inner side of the outer ring cylinder. The culture tube is disposed at the four top ends of the cross-shaped pipes. The top of the cross-shaped pipes penetrates the inner ring cylinder and extends into the culture tube. The tail end of the inner ring cylinder is enlarged and a fiber bouquet is disposed at the tail end. A connecting structure is fixedly installed on the connecting rod of the outer ring cylinder at the top end. The connecting structure includes a fixing frame, a fixing block, and a threaded rod.
[0007] As a further embodiment of this utility model, a culture plate is fixedly installed between the cross-shaped pipes. The culture plate is cross-shaped like the cross-shaped pipes. Connection holes are equidistantly opened on the side wall of the cross-shaped pipes, and holes are also opened on the outer side of the culture tube.
[0008] As a further embodiment of this utility model, the fixing frame is fixedly installed on the top of the connecting rod, the threaded rod is threadedly installed on the right end of the fixing frame, a fixing block is provided on the fixing frame, and the left end of the threaded rod is movably connected to the back of the fixing block.
[0009] As a further embodiment of this utility model, threaded joints are fixedly installed on both the upper and lower sides of the outer ring cylinder, and the connecting rods provided between the outer ring cylinders can be threadedly connected to the threaded joints.
[0010] As a further embodiment of this utility model, an mounting ring is fixedly installed at the tail end of the inner ring cylinder, and the fiber bouquet can be movably fitted onto the mounting ring.
[0011] As a further embodiment of this invention, the fiber bouquet is made of aldehyde-modified vinylon filament.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the inner ring slows down the water flow around the culture tube, which increases the microbial culture speed inside the culture tube. At the same time, the cross-shaped pipe is connected to the inside of the culture tube, and the connecting holes on the cross-shaped pipe allow the microorganisms inside the culture tube to spread quickly to the culture plate, accelerating the microbial reproduction on the culture plate. In addition, a certain number of fiber bouquets can be hung on the mounting ring at the tail of the inner ring. The fiber bouquets are easy to attach to the microbial film, which increases the contact between the biofilm and the wastewater, further improving the wastewater treatment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a biofilm reactor packing material proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the main structure of a biofilm reactor packing material proposed in this utility model;
[0016] Figure 3 This is a schematic diagram of the inner ring structure of a biofilm reactor packing material proposed in this utility model;
[0017] Figure 4 This is a schematic cross-sectional view of a biofilm reactor packing material proposed in this utility model.
[0018] In the diagram: 1. Outer ring cylinder; 2. Inner ring cylinder; 3. Culture cylinder; 4. Cross-shaped tube; 5. Fiber bouquet; 6. Connecting rod; 7. Fixing frame; 8. Fixing block; 9. Threaded rod; 10. Threaded joint; 11. Culture plate; 12. Connecting hole; 13. Mounting ring. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Reference Figure 1 - Figure 4 A biofilm reactor packing includes an outer ring cylinder 1 and connecting rods 6 on the outer side of the outer ring cylinder 1. An inner ring cylinder 2 is disposed in the middle of the outer ring cylinder 1. Cross-shaped pipes 4 are installed at equal intervals in the middle of the inner ring cylinder 2. The interior of the cross-shaped pipes 4 is hollow. A culture tube 3 is fixedly installed between the outer side of the inner ring cylinder 2 and the inner side of the outer ring cylinder 1. The culture tube 3 is disposed at the four top ends of the cross-shaped pipes 4. The top of the cross-shaped pipes 4 penetrates the inner ring cylinder 2 and extends into the culture tube 3. The tail of the inner ring cylinder 2 is enlarged and a fiber bouquet 5 is disposed at the tail of the inner ring cylinder 2. A connecting structure is fixedly installed on the connecting rod 6 of the top outer ring cylinder 1. The connecting structure includes a fixing frame 7, a fixing block 8, and a threaded rod 9. When sewage flows through the outer ring cylinder 1, it will flow quickly through the cross pipe 4 and the culture plate 11 in the inner ring cylinder 2, which facilitates the rapid reproduction of microorganisms. Since the tail of the inner ring cylinder 2 is enlarged, the distance that sewage flows through the inside of the inner ring cylinder 2 is shorter than the distance that it flows through the outside of the inner ring cylinder 2. Therefore, the sewage flow rate on the outside of the inner ring cylinder 2 will be slower, which facilitates the cultivation of microorganisms in the culture cylinder 3.
[0023] In this embodiment, a culture plate 11 is fixedly installed between the cross-shaped pipes 4. The culture plate 11 is cross-shaped like the cross-shaped pipes 4. Connection holes 12 are equidistantly opened on the side wall of the cross-shaped pipes 4. Holes are also opened on the outer side of the culture tube 3. The cross-shaped pipes 4 are hollow and connected to the culture tube 3. Microorganisms growing in the culture tube 3 can enter the cross-shaped pipes 4 and spread quickly to the culture plate 11 through the connection holes 12 on the cross-shaped pipes 4, thus accelerating the reproduction of microorganisms on the culture plate 11.
[0024] In this embodiment, the fixing frame 7 is fixedly installed on the top of the connecting rod 6, the threaded rod 9 is threadedly installed on the right end of the fixing frame 7, the fixing frame 7 is provided with a fixing block 8, and the left end of the threaded rod 9 is movably connected to the back of the fixing block 8. By clamping the fixing frame 7 on the frame at the top of the reactor, and then rotating the threaded rod 9 to drive the fixing block 8 to move, the fixing block 8 can be fixed on the frame at the top of the reactor through the cooperation of the fixing block 8 and the fixing frame 7.
[0025] In this embodiment, threaded joints 10 are fixedly installed on both the upper and lower sides of the outer ring cylinder 1. The connecting rod 6 between the outer ring cylinders 1 can be threadedly connected to the threaded joint 10. Since both ends of the connecting rod 6 can be threadedly connected to the threaded joint 10, multiple outer ring cylinders 1 can be connected together for use according to the depth of the reactor.
[0026] In this embodiment, an installation ring 13 is fixedly installed at the tail of the inner ring cylinder 2. The fiber bouquet 5 can be movably sleeved on the installation ring 13. The fiber bouquet 5 is made of aldehyde-modified vinylon filament. A certain number of fiber bouquets 5 are hung on the installation ring 13 at the tail of the inner ring cylinder 2. The fiber bouquet 5 is made of aldehyde-modified vinylon filament, and its surface is easy to coat with microbial film. At the same time, it can also increase the contact with sewage and further improve the treatment of sewage.
[0027] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When in use, since the two ends of the connecting rod 6 can be threadedly connected to the threaded joint 10, multiple outer ring cylinders 1 can be connected together for use according to the depth of the reactor. By clamping the fixing frame 7 on the frame at the top of the reactor, and then rotating the threaded rod 9 to drive the fixing block 8 to move, the fixing block 8 can be fixed on the frame at the top of the reactor through the cooperation of the fixing frame 7.
[0028] When wastewater flows through the outer ring cylinder 1, it flows rapidly through the cross pipe 4 and the culture plate 11 in the inner ring cylinder 2, facilitating the rapid reproduction of microorganisms. Because the tail of the inner ring cylinder 2 is enlarged, the distance the wastewater flows through from the inside of the inner ring cylinder 2 is shorter than the distance it flows from the outside. Therefore, the wastewater flow rate on the outside of the inner ring cylinder 2 is slower, which facilitates the cultivation of microorganisms in the culture cylinder 3 and prevents excessive water flow from scouring the culture cylinder 3 and slowing down the microbial reproduction process. Simultaneously, the cross pipe 4 is hollow and connected to the inside of the culture cylinder 3, allowing microorganisms growing in the culture cylinder 3 to enter the cross pipe 4 and quickly spread to the culture plate 11 through the connecting holes 12, accelerating the reproduction of microorganisms on the culture plate 11. Furthermore, a certain number of fiber bouquets 5 can be hung on the mounting ring 13 at the tail of the inner ring cylinder 2. These fiber bouquets 5 easily harbor microbial films and also increase contact with wastewater, further improving wastewater treatment.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A biofilm reactor packing material, comprising an outer ring cylinder (1) and a connecting rod (6) on the outer side of the outer ring cylinder (1), characterized in that, An inner ring cylinder (2) is provided in the middle of the outer ring cylinder (1). Cross pipes (4) are installed at equal intervals in the middle of the inner ring cylinder (2). The interior of the cross pipes (4) is hollow. A culture tube (3) is fixedly installed between the outer side of the inner ring cylinder (2) and the inner side of the outer ring cylinder (1). The culture tube (3) is set at the four top ends of the cross pipes (4). The top of the cross pipes (4) penetrates the inner ring cylinder (2) and extends into the culture tube (3). The tail of the inner ring cylinder (2) is enlarged. A fiber bouquet (5) is provided at the tail of the inner ring cylinder (2). A connecting structure is fixedly installed on the connecting rod (6) of the outer ring cylinder (1) at the top. The connecting structure includes a fixing frame (7), a fixing block (8), and a threaded rod (9).
2. The biofilm reactor packing material according to claim 1, characterized in that, A culture plate (11) is fixedly installed between the cross-shaped pipes (4). The culture plate (11) is cross-shaped like the cross-shaped pipes (4). Connection holes (12) are equidistantly opened on the side wall of the cross-shaped pipes (4). Holes are also opened on the outer side of the culture tube (3).
3. The biofilm reactor packing material according to claim 1, characterized in that, The fixing frame (7) is fixedly installed on the top of the connecting rod (6), the threaded rod (9) is threadedly installed on the right end of the fixing frame (7), the fixing frame (7) is provided with a fixing block (8), and the left end of the threaded rod (9) is movably connected to the back of the fixing block (8).
4. The biofilm reactor packing material according to claim 1, characterized in that, Threaded joints (10) are fixedly installed on both the upper and lower sides of the outer ring cylinder (1), and the connecting rod (6) between the outer ring cylinders (1) can be threadedly connected to the threaded joints (10).
5. The biofilm reactor packing material according to claim 1, characterized in that, An installation ring (13) is fixedly installed at the tail of the inner ring cylinder (2), and the fiber bouquet (5) can be movably fitted onto the installation ring (13).
6. The biofilm reactor packing material according to claim 1, characterized in that, The fiber bouquet (5) is made of aldehyde-modified vinylon filament.