Highly adaptive composite filler for high-efficiency composite biofilter

By designing a multi-layer biological packing layer and a spray vibration system, the problem of clogging in the biological filter bed packing layer was solved, achieving a highly efficient waste gas treatment effect and enhancing the purification capacity and adaptability of the biological filter bed.

CN224411531UActive Publication Date: 2026-06-26GUANGDONG KANGYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG KANGYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing biofilters are prone to accumulation and clogging of the biofilter media layer, which affects the efficiency of waste gas treatment. Furthermore, the spray pump can only cover the surface layer and cannot effectively prevent clogging of the media layer.

Method used

A highly adaptable composite packing material for a high-efficiency composite biological filter bed is designed. It adopts a multi-layered biological packing layer (including a ceramic particle layer, a volcanic rock layer, and a bamboo charcoal layer), combined with spray pipes, nozzles, spray layers, and a vibration motor. The packing material is kept loose through spraying and vibration measures, providing nutrients and increasing oxygen. The multi-layered structure and spray system optimize waste gas treatment.

Benefits of technology

It effectively prevents the packing layer from caking, increases the spray coverage area, provides continuous nutrition, improves the efficiency of microbial waste gas treatment, ensures the packing layer is loose, and enhances purification capacity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224411531U_ABST
Patent Text Reader

Abstract

The utility model relates to biological filter bed filler technology field especially a kind of high adaptability composite filler of high-efficiency composite biological filter bed, including strain box, filler layer bracket is set in the inner chamber middle part of strain box, bottom support frame is set in the bottom of strain box, filler slot is set in the side of filler layer bracket, biological filler layer is filled in filler slot, air inlet pipe is set in the other side of filler layer bracket, spray pipe is set in the top of filler layer bracket, the outer wall of spray pipe is connected with multiple spray heads, spray head is located above biological filler layer, the top of filler slot is connected with waste gas pipe, the high adaptability composite filler of this high-efficiency composite biological filter bed can provide enough survival nutrient substance for microorganism, while cooperating spray pipe, spray head and timely adding nutrient substance, ensure that microorganism can continuously carry out waste gas treatment, can also carry out vibration treatment, so that filler can keep loose, provide better living space for microorganism, reach the function of improving microorganism waste gas treatment efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of biological filter bed packing technology, and in particular to a highly adaptable composite packing for a high-efficiency composite biological filter bed. Background Technology

[0002] Biofilters primarily utilize microorganisms to purify and filter pollutants, thereby purifying the gas before it is released into the atmosphere. Biofilters are characterized by strong recyclability, low maintenance costs, and high purification capacity. However, existing biofilters, such as the patented integrated biological VOCs treatment device (CN207430009U), which combines a pretreatment section, a pretreatment spray section, and a biological filtration section into a single unit, enhance treatment efficiency, reduce equipment corrosion, and improve the biodegradability of waste gas. However, its spray pumps only cover the surface of the biological filter media layer, leading to accumulation and blockage of the media, thus affecting the waste gas treatment efficiency of the biological filter media layer. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly adaptable composite packing material for a high-efficiency composite biofilter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A highly adaptable composite packing material for a high-efficiency composite biological filter bed is designed, comprising a microbial incubator box, a packing layer bracket in the middle of the inner cavity of the incubator box, a bottom support frame at the bottom of the incubator box, a filling groove on one side of the packing layer bracket, the filling groove being filled with a biological packing layer, an air inlet pipe on the other side of the packing layer bracket, a spray pipe on the top of the packing layer bracket, multiple nozzles connected to the outer wall of the spray pipe, the nozzles being located above the biological packing layer, an exhaust gas pipe connected to the top of the filling groove, and an air pump installed at the end of the exhaust gas pipe.

[0006] Preferably, a spray layer is provided in the inner cavity of the air inlet pipe, and the spray layer includes an upper spray layer and a reverse spray layer arranged opposite each other.

[0007] Preferably, an insulated box is provided at the bottom of the bottom support frame, and a first water pump, a heat exchange pipe and a second water pump are provided in the inner cavity of the insulated box. An oxygenation blower is provided on the side wall of the insulated box. The first water pump is connected to the spray layer through a pipe, and the second water pump is connected to the spray pipe.

[0008] Preferably, the exhaust pipe is connected to multiple branch pipes, all of which are connected to the filling tank, and a demisting layer for absorbing water mist is provided in the inner cavity of the exhaust pipe.

[0009] Preferably, a dosing tank is provided at the bottom of the bottom support frame, a dosing pump is installed at the top of the dosing tank, and the dosing pump is connected to the insulation box through a pipeline.

[0010] Preferably, the biological filler layer has a multi-layer structure, including a ceramic particle layer, a volcanic rock layer, and a bamboo charcoal layer.

[0011] Preferably, a control cabinet is provided at the bottom of the bottom support frame, and the control cabinet is equipped with a power supply and control switches for starting and stopping the spray layer, the first water pump, the second water pump, the oxygenation blower and the dosing pump.

[0012] Preferably, the spray pipe is connected to the second water pump through a delivery pipe. The delivery pipe has a three-section structure, including connecting hoses at both ends and a rigid pipe in the middle. Multiple vibration motors are installed on the outer wall of the rigid pipe through mounting rings.

[0013] Preferably, multiple fixed cylinders are vertically arranged in the filling groove, and the conveying pipe passes through the fixed cylinders.

[0014] This invention proposes a highly adaptable composite filler for a high-efficiency composite biological filter bed. Its advantages include: providing sufficient nutrients for microorganisms to survive; timely addition of nutrients via spray pipes and nozzles to ensure continuous waste gas treatment; and a vibrating motor that vibrates the conveying pipe, transmitting kinetic energy to the nozzles, which then shake during spraying, increasing the spray coverage area. Simultaneously, the vibration of the conveying pipe also vibrates the composite filler inside the filling tank, keeping it loose and providing better living space for microorganisms, thus improving the efficiency of microbial waste gas treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a highly adaptable composite packing material for a high-efficiency composite biofilter proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a highly adaptable composite packing material for a high-efficiency composite biofilter proposed in this utility model.

[0017] In the diagram: 1. Air inlet pipe, 2. Spray layer, 3. Inoculum box, 4. Biological packing layer, 5. Demisting layer, 6. Exhaust gas pipe, 7. Insulation box, 8. First water pump, 9. Heat exchange pipe, 10. Second water pump, 11. Aeration blower, 12. Packing layer bracket, 13. Dosing tank, 14. Dosing pump, 15. Bottom support frame, 16. Control cabinet, 17. Spray pipe, 18. Delivery pipe, 19. Fixed cylinder, 20. Nozzle, 21. Filling trough, 22. Connecting hose, 23. Mounting ring, 24. Vibration motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-2 A highly adaptable composite filler for a high-efficiency composite biological filter bed includes a microbial incubator 3. A filler layer bracket 12 is provided in the middle of the inner cavity of the microbial incubator 3. A bottom support frame 15 is provided at the bottom of the microbial incubator 3. A filling groove 21 is provided on one side of the filler layer bracket 12. The filling groove 21 is filled with a biological filler layer 4. An air inlet pipe 1 is provided on the other side of the filler layer bracket 12. A spray pipe 17 is provided on the top of the filler layer bracket 12. Multiple nozzles 20 are connected to the outer wall of the spray pipe 17. The nozzles 20 are located above the biological filler layer 4. An exhaust pipe 6 is connected to the top of the filling groove 21. An air pump is installed at the end of the exhaust pipe 6.

[0020] Reference Figure 1 A spray layer 2 is installed in the inner cavity of the air inlet pipe 1. The spray layer 2 includes an upper spray layer and a reverse spray layer arranged opposite each other. The upper spray layer and the reverse spray layer include multiple spray heads to spray the exhaust gas that initially enters the air inlet pipe 1, thereby achieving the function of preliminary treatment of the exhaust gas. An insulated box 7 is installed at the bottom of the bottom support frame 15. A first water pump 8, a heat exchange pipe 9, and a second water pump 10 are installed in the inner cavity of the insulated box 7. An oxygenating blower 11 is installed on the side wall of the insulated box 7. The first water pump 8 is connected to the spray layer 2 through a pipe, and the second water pump 10 is connected to the spray pipe 17. The insulated box 7 is used to store nutrients for the survival of microorganisms. The oxygenating blower 11 delivers more oxygen to the insulated box 7. The heat exchange pipe 9 can be heated by electricity or by using an external heat source to heat the nutrients stored in the insulated box 7.

[0021] Reference Figure 1 Multiple branch pipes are connected to the exhaust pipe 6, and all branch pipes are connected to the filling tank 21. A demisting layer 5 for absorbing water mist is set in the inner cavity of the exhaust pipe 6. The demisting layer 5 contains quicklime or gaseous substances for absorbing water mist, and plays the role of absorbing residual water mist in the exhaust gas.

[0022] Reference Figure 1A dosing tank 13 is installed at the bottom of the bottom support frame 15, and a dosing pump 14 is installed at the top of the dosing tank 13. The dosing pump 14 is connected to the insulated box 7 through a pipe. The biological filling layer 4 has a multi-layer structure, including a ceramic granule layer, a volcanic rock layer, and a bamboo charcoal layer. The multi-layer structure of the biological filling layer 4 can alleviate the problem of compaction that occurs after long-term use, and at the same time, it can provide nutrients for different types of microorganisms, improving their adaptability. In addition, a control cabinet 16 is installed at the bottom of the bottom support frame 15. The control cabinet 16 contains power supply and controls for starting and stopping the spray layer 2, the first water pump 8, the second water pump 10, the oxygenation blower 11, and the dosing system. The control switch for pump 14 is provided. Spray pipe 17 is connected to the second water pump 10 via delivery pipe 18. Delivery pipe 18 has a three-section structure, including connecting hoses 22 at both ends and a rigid pipe in the middle. Multiple vibration motors 24 are installed on the outer wall of the rigid pipe via mounting rings. Multiple fixed cylinders 19 are vertically arranged in the filling tank 21. Delivery pipe 18 passes through the fixed cylinders 19. The vibration motors 24 can vibrate the multi-layer biological filling layer 4, further reducing the compaction of the biological filling layer 4, making the filling more loose, providing a better living space for microorganisms, and achieving the function of improving the efficiency of microbial waste gas treatment.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly adaptable composite packing material for a high-efficiency composite biological filter bed, comprising a microbial incubator (3), characterized in that, A packing layer bracket (12) is provided in the middle of the inner cavity of the inoculum box (3). A bottom support frame (15) is provided at the bottom of the inoculum box (3). A filling groove (21) is provided on one side of the packing layer bracket (12). The filling groove (21) is filled with biological packing layer (4). An air inlet pipe (1) is provided on the other side of the packing layer bracket (12). A spray pipe (17) is provided at the top of the packing layer bracket (12). Multiple nozzles (20) are connected to the outer wall of the spray pipe (17). The nozzles (20) are located above the biological packing layer (4). An exhaust pipe (6) is connected to the top of the filling groove (21). An air pump is installed at the end of the exhaust pipe (6).

2. The highly adaptable composite packing material for a high-efficiency composite biological filter bed according to claim 1, characterized in that, A spray layer (2) is provided in the inner cavity of the air inlet pipe (1). The spray layer (2) includes an upper spray layer and a reverse spray layer arranged opposite each other.

3. The highly adaptable composite packing material for a high-efficiency composite biofilter according to claim 1, characterized in that, The bottom support frame (15) is provided with an insulated box (7) at the bottom. The inner cavity of the insulated box (7) is provided with a first water pump (8), a heat exchange pipe (9), and a second water pump (10). The side wall of the insulated box (7) is provided with an oxygenation blower (11). The first water pump (8) is connected to the spray layer (2) through a pipe, and the second water pump (10) is connected to the spray pipe (17).

4. The highly adaptable composite packing material for a high-efficiency composite biological filter bed according to claim 1, characterized in that, Multiple branch pipes are connected to the exhaust pipe (6), and all branch pipes are connected to the filling tank (21). A demisting layer (5) for absorbing water mist is provided in the inner cavity of the exhaust pipe (6).

5. The highly adaptable composite packing material for a high-efficiency composite biofilter according to claim 1, characterized in that, The bottom support frame (15) is provided with a dosing tank (13) at the bottom, and a dosing pump (14) is installed on the top of the dosing tank (13). The dosing pump (14) is connected to the insulation box (7) through a pipe.

6. The highly adaptable composite packing material for a high-efficiency composite biofilter according to claim 1, characterized in that, The biological filler layer (4) has a multi-layer structure, including a ceramic particle layer, a volcanic rock layer and a bamboo charcoal layer.

7. The highly adaptable composite packing material for a high-efficiency composite biofilter according to claim 1, characterized in that, The bottom of the bottom support frame (15) is provided with a control cabinet (16), which is equipped with a power supply and control switches for opening and closing the spray layer (2), the first water pump (8), the second water pump (10), the oxygenation blower (11) and the dosing pump (14).

8. The highly adaptable composite packing material for a high-efficiency composite biological filter bed according to claim 1, characterized in that, The spray pipe (17) is connected to the second water pump (10) through the delivery pipe (18). The delivery pipe (18) has a three-section structure, including connecting hoses (22) at both ends and a rigid pipe in the middle. Multiple vibration motors (24) are installed on the outer wall of the rigid pipe through the mounting ring.

9. The highly adaptable composite packing material for a high-efficiency composite biological filter bed according to claim 1, characterized in that, Multiple fixed cylinders (19) are vertically arranged in the filling groove (21), and the conveying pipe (18) passes through the fixed cylinders (19).