A kind of special filler structure for biological trickling filter tower for waste gas treatment
By designing the packing structure of the bio-trickling filter tower with a packing frame and an outer frame, the problem of insufficient gas-liquid flow guidance was solved, the gas-liquid contact area was increased, and the long-term stable operation of the device was achieved, preventing clogging and improving mass transfer efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-31
AI Technical Summary
The existing packing structure of bio-trickling filters has insufficient gas-liquid flow guidance, which easily leads to channeling and dead zones, resulting in reduced mass transfer efficiency and increased bed pressure drop. This may cause blockage and affect the long-term stable operation of the device.
Design a packing structure including a packing frame and an outer frame. The packing frame has multiple interconnected packing cavities. The outer frame is reinforced with reinforcing grooves and supports to enhance structural strength. The connecting grooves ensure gas-liquid flow and prevent blockage. The supports form a mesh structure to prevent the microbial film from detaching.
It improves the guidance of gas-liquid flow, prevents blockage, ensures the long-term stable operation and user experience of the device, and enhances the gas-liquid contact area and mass transfer efficiency of the packing structure.
Smart Images

Figure CN224573762U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packing structure technology, and in particular to a packing structure for a biological trickling filter tower used for waste gas treatment. Background Technology
[0002] Biotrickling filters are one of the mainstream technologies for treating volatile organic compounds and odorous gases. Their core principle is to utilize a microbial film attached to the surface of the packing material to adsorb, absorb, and biodegrade pollutants in the exhaust gas. In this process, the packing material acts as a carrier and mass transfer medium for the microorganisms, and its structural performance directly determines the system's treatment efficiency, operational stability, and energy consumption.
[0003] Currently, commonly used packing materials in this field include inorganic packing materials such as Pall rings, Raschig rings, and multifaceted hollow spheres, as well as some organic polymer packing materials. The structural design of these traditional packing materials often lacks sufficient guidance for gas-liquid flow, easily forming channeling and dead zones, leading to reduced mass transfer efficiency, increased bed pressure drop, and potential blockage due to excessive biomass growth, seriously affecting the long-term stable operation of the equipment. Utility Model Content
[0004] The main purpose of this invention is to provide a special packing structure for a bio-trickling filter tower for waste gas treatment, which aims to improve the gas-liquid flow guidance of the packing structure, increase the contact area between the gas and liquid and the packing, and thus improve the waste gas treatment efficiency.
[0005] To achieve the above objectives, this utility model proposes a special packing structure for a biological trickling filter tower for waste gas treatment, including a packing frame, an outer frame surrounding the outer periphery of the packing frame, and multiple packing cavities arranged in a vertical array along the packing frame. The multiple packing cavities have the same diameter and are arranged sequentially along the central axis of the packing frame and connected to each other. The outer periphery of the packing frame is provided with reinforcing grooves relative to the multiple packing cavities.
[0006] The outer frame is symmetrically provided with an upper frame and a lower frame along the horizontal axis of the packing frame. The upper frame and the lower frame are detachably connected to each other. The upper frame includes multiple warp supports connected to the top of the packing frame and multiple weft supports arranged along the weft direction of the packing frame. Each weft support is connected to multiple warp supports. Each opening of the packing cavity is connected to a warp support and / or a weft support.
[0007] In one embodiment of this application, the packing frame has a connecting groove between the openings of two adjacent packing cavities, and the two adjacent packing cavities are connected to each other by the connecting groove.
[0008] In one embodiment of this application, the outer frame is connected to the opening of the connecting slot.
[0009] In one embodiment of this application, the reinforcing groove is connected to at least two latitudinal supports.
[0010] In one embodiment of this application, the packing frame is a sphere; the packing cavity is triangular, quadrilateral, or regular hexagonal.
[0011] In one embodiment of this application, the inner wall of the packing cavity is provided with a plurality of fixing protrusions, and the plurality of fixing protrusions form an anti-slip structure.
[0012] By adopting the above technical solution, this utility model has the following advantages:
[0013] The packing structure of this application consists of a packing frame and an outer frame surrounding the packing frame. From a top-down perspective, multiple packing cavities of the same area are arrayed on the packing frame. The multiple packing cavities are connected to each other in pairs. The packing cavities are used to fill microbial membranes, and the packing cavities themselves are connected through the packing frame. The packing cavities themselves have a flow guiding effect, and the multiple packing cavities have the same pore size, which can guide the flow of gas and liquid, effectively prevent blockage in the packing structure, and can help the device to operate stably for a long time.
[0014] Meanwhile, reinforcing grooves are provided between the packing cavities on the outer periphery of the packing structure. Each reinforcing groove is connected to at least two packing cavities. When the outer frame is wrapped around the packing frame, it will be connected to the reinforcing grooves to improve the structural strength of the entire packing structure and effectively ensure the user's experience.
[0015] The outer frame consists of an upper frame and a lower frame with identical structures. The two frames can be disassembled and combined. When filling is required, the two frames can be opened. The upper frame itself includes a warp support and a weft support. The warp and weft supports form a mesh structure that wraps around the filling structure and passes through the open positions of each filling cavity. This effectively prevents the microbial film from detaching from the filling cavity. The entire structure is relatively simple and has high structural strength, which can ensure the gas-liquid flow guidance of the filling structure and avoid blockage. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the special packing material for the biological trickling filter tower for waste gas treatment according to this utility model;
[0018] Figure 2 This is a schematic diagram of the packing frame of the bio-trickling filter tower special packing structure for waste gas treatment according to this utility model;
[0019] Figure 3 This is a schematic diagram of the outer frame of the special packing structure for the biological trickling filter tower for waste gas treatment according to this utility model;
[0020] Figure 4 This is a schematic diagram of the inner wall of the packing cavity of the bio-trickling filter tower special packing structure for waste gas treatment according to this utility model.
[0021] Explanation of icon numbers:
[0022] 1. Packing frame; 11. Packing cavity; 12. Connecting groove; 13. Reinforcing groove; 2. Fixing protrusion; 3. Outer frame; 4. Upper frame; 41. Warp support; 42. Weft support; 5. Lower frame.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0025] The following is in conjunction with the appendix Figures 1 to 4 The present invention will be further described below.
[0026] To achieve the above objectives, this utility model proposes a special packing structure for a biological trickling filter tower for waste gas treatment, including a packing frame 1, an outer frame 3 surrounding the outer periphery of the packing frame 1, and multiple packing cavities 11 arranged in a vertical array along the packing frame 1. The multiple packing cavities 11 have the same diameter and are arranged sequentially along the central axis of the packing frame 1 and connected to each other. The outer periphery of the packing frame 1 is provided with reinforcing grooves 13 relative to the multiple packing cavities 11.
[0027] The outer frame 3 is symmetrically provided with an upper frame 4 and a lower frame 5 along the horizontal axis of the packing frame 1. The upper frame 4 and the lower frame 5 are detachably connected to each other. The upper frame 4 includes a plurality of warp supports 41 connected to the top of the packing frame 1 and a plurality of weft supports 42 arranged along the weft direction of the packing frame 1. Each weft support 42 is connected to a plurality of warp supports 41. Each opening of the packing cavity 11 is connected to a warp support 41 and / or a weft support 42.
[0028] The packing structure of this application consists of a packing frame 1 and an outer frame 3 surrounding the packing frame 1. From a top-down view, the packing frame 1 has multiple packing cavities 11 of the same area arranged in an array. The multiple packing cavities 11 are connected to each other in pairs. The packing cavities 11 are used to fill microbial films, and the packing cavities 11 themselves are arranged through the packing frame 1. The packing cavities 11 themselves have a flow guiding effect, and the multiple packing cavities 11 have the same pore size, which can guide the flow of gas and liquid, effectively prevent blockage in the packing structure, and can help the device to operate stably for a long time.
[0029] Meanwhile, reinforcing grooves 13 are provided between the packing cavities 11 on the outer periphery of the packing structure. Each reinforcing groove 13 is connected to at least two packing cavities 11. When the outer frame 3 is wrapped around the packing frame 1, it will be connected to the reinforcing grooves 13 to improve the structural strength of the entire packing structure and effectively ensure the user's experience.
[0030] The outer frame 3 includes an upper frame 4 and a lower frame 5 with identical structures. The two frames can be disassembled / combined. When filling is required, the two frames can be opened. The upper frame 4 itself includes a warp support 41 and a weft support 42. The warp support 41 and the weft support 42 form a mesh structure that wraps around the filling structure and passes through the open position of each filling cavity 11. This effectively prevents the microbial film from coming out of the filling cavity 11. The whole structure is relatively simple and has high structural strength, which can ensure the gas-liquid flow guidance of the filling structure and avoid blockage.
[0031] In one embodiment of this application, the packing frame 1 has a connecting groove 12 between the openings of two adjacent packing cavities 11, and the two adjacent packing cavities 11 are connected to each other under the action of the connecting groove 12.
[0032] The packing cavity 11 has an opening at both the upper and lower ends of the packing frame 1, and the openings of two adjacent packing cavities 11 are arranged close to each other. The two packing cavities 11 share a common side, and a connecting groove 12 is provided on this common side along the axis perpendicular to the two packing cavities 11. This allows multiple packing cavities 11 to be interconnected, ensuring the gas-liquid flow in the packing cavity 11 and effectively improving the service life of the structure.
[0033] In one embodiment of this application, the outer frame 3 is connected to the opening of the connecting groove 12.
[0034] Since the connecting groove 12 is generally located at the center of the common edge of two adjacent packing cavities 11, the outer frame 3 is connected to the connecting groove 12, which enables the outer frame 3 to more comprehensively block the packing cavity 11, while not obstructing the flow of gas and liquid. Furthermore, the connecting groove 12 can assist in the positioning and fixation of the outer frame 3, prevent the outer frame 3 from loosening, and effectively improve the user experience.
[0035] In one embodiment of this application, the reinforcing groove 13 is connected to at least two latitudinal supports 42.
[0036] The outer frame 3 is provided with at least two weft supports 42 at the reinforcing groove 13 on the side of the packing frame 1, so that both the upper frame 4 and the lower frame 5 have multiple weft supports 42 connected to the reinforcing groove 13, which can effectively improve the structural strength of the packing structure and increase the service life of the structure.
[0037] In one embodiment of this application, the packing frame 1 is a sphere; the packing cavity 11 is a triangle, a quadrilateral, or a regular hexagon.
[0038] The packing cavity 11 can be any triangle, any quadrilateral (including square, rectangle, rhombus, etc.), or a regular hexagon. With these structures, the packing cavity 11 can be evenly distributed on the packing frame 1, which can ensure the permeability of the packing structure.
[0039] In one embodiment of this application, the inner wall of the filling cavity 11 is provided with a plurality of fixing protrusions 2, and the plurality of fixing protrusions 2 form an anti-slip structure.
[0040] The inner wall of the packing cavity 11 is provided with fixing protrusions 2. When the user opens the outer frame 3 and fills the microbial biofilm, the inner wall of the packing cavity 11 can hold the biofilm structure with the help of the fixing protrusions 2, which can prevent the biofilm from falling off. At the same time, with the assistance of the outer frame 3, the stability of the biofilm installation can be ensured, so that the packing structure can work stably.
[0041] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A special packing structure for a bio-trickling filter tower for waste gas treatment, comprising a packing frame, characterized in that, The outer periphery of the packing frame is surrounded by an outer frame. The packing frame is arranged in a vertical array with multiple packing cavities of the same diameter. The multiple packing cavities are arranged sequentially along the central axis of the packing frame and connected to each other. The outer periphery of the packing frame is provided with reinforcing grooves relative to the multiple packing cavities. The outer frame is symmetrically provided with an upper frame and a lower frame along the horizontal axis of the packing frame. The upper frame and the lower frame are detachably connected to each other. The upper frame includes multiple warp supports connected to the top of the packing frame and multiple weft supports arranged along the weft direction of the packing frame. Each weft support is connected to multiple warp supports. Each opening of the packing cavity is connected to a warp support and / or a weft support.
2. The packing structure for a bio-trickling filter tower for waste gas treatment according to claim 1, characterized in that, The packing frame has a connecting groove between the openings of two adjacent packing cavities, and the two adjacent packing cavities are connected to each other by the connecting groove.
3. The packing structure for a bio-trickling filter tower for waste gas treatment according to claim 2, characterized in that, The outer frame is connected to the opening of the connecting slot.
4. The packing structure for a bio-trickling filter tower for waste gas treatment according to claim 1, characterized in that, The reinforcing groove is connected to at least two latitudinal supports.
5. The packing structure for a bio-trickling filter tower for waste gas treatment according to claim 1, characterized in that, The packing frame is a sphere; the packing cavity is triangular, quadrilateral, or regular hexagonal.
6. The packing structure for a bio-trickling filter tower for waste gas treatment according to claim 1, characterized in that, The inner wall of the filling cavity is provided with a plurality of fixed protrusions, and the plurality of fixed protrusions form an anti-slip structure.