Livestock and poultry manure ex-situ fermentation bed ventilation device
By designing a ventilation device for off-site fermentation beds of livestock and poultry manure, the problem of oxygen deficiency inside the fermentation material was solved, achieving uniform ventilation and efficient fermentation of the fermentation material, and simplifying the cleaning process.
Patent Information
- Application Number
- CN202521948640.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-10
AI Technical Summary
Existing ventilation equipment is unable to effectively supply oxygen in high-density fermentation materials, leading to oxygen deficiency inside the fermentation materials, producing odors and affecting the fermentation effect.
A ventilation device for off-site fermentation bed of livestock and poultry manure was designed, including a support frame, a mesh plate, an air supply pipe, an air distribution pipe, and a fan. Air is delivered to the air distribution pipe through the air supply pipe and sprayed out from the air outlet to achieve uniform distribution of air inside the fermentation material. Combined with the rotatable mesh plate and the motor-driven rotating shaft system, it is easy to clean and stabilize the support frame.
It achieves uniform ventilation inside the fermentation material, promotes aerobic fermentation, improves fermentation effect, and facilitates cleaning and maintenance of the device.
Smart Images

Figure CN224677954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manure fermentation, specifically a ventilation device for off-site fermentation beds of livestock and poultry manure. Background Technology
[0002] In-situ fermentation beds are an environmentally friendly technology used to treat farm waste (such as livestock and poultry manure). They fall under the category of ecological circular agriculture. The core of this technology is to decompose organic matter through microbial fermentation, thereby achieving the harmless treatment and resource utilization of waste while reducing environmental pollution.
[0003] Currently, in existing technologies, aerobic bacteria are generally used for aerobic fermentation of manure. The fermented product becomes organic fertilizer that can be used in farmland. During fermentation, it is necessary to ensure ventilation and oxygen supply to prevent anaerobic fermentation from producing odors.
[0004] However, when the fermentation pile is too thick, the existing ventilation equipment is unable to introduce air into the fermentation pile, which makes it easy for oxygen deficiency to occur inside the fermentation pile. Therefore, a ventilation device for off-site fermentation bed of livestock and poultry manure is proposed to address the above problem. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background technology, this utility model proposes a ventilation device for off-site fermentation bed of livestock and poultry manure.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The ventilation device for off-site fermentation bed of livestock and poultry manure of this utility model includes a support and a fan; multiple mesh plates are installed on the top of the support, an air supply pipe is fixedly connected to the support, multiple air distribution pipes are fixedly connected to the side of the air supply pipe, multiple air outlets are opened on the top of the air distribution pipe, the air outlets are located below the mesh plates, the air distribution pipes are located inside the support, and the air outlet end of the fan is fixedly connected to the end of the air supply pipe.
[0007] Preferably, multiple pairs of supports are fixedly connected to the inner sidewall of the bracket, and multiple rotating shafts are provided inside the bracket. The rotating shafts are rotatably connected to the supports, and a connecting plate is fixedly connected to the surface of the rotating shaft. The top of the connecting plate is fixedly connected to the mesh plate.
[0008] Preferably, a motor is fixedly connected to the bracket, the output end of the motor is fixedly connected to the rotating shaft, a sprocket is fixedly connected to each of the multiple rotating shafts, and a chain drive is installed between the multiple sprockets.
[0009] Preferably, a crossbeam is fixedly connected to the bottom of the bracket, and a support arm is provided on the side of the mesh plate away from the pivot. The support arm is fixedly connected to the crossbeam and is located below the mesh plate.
[0010] Preferably, the support arm has a groove inside, a top rod is slidably connected inside the groove, and a spring is provided inside the groove, with the top end of the spring and the bottom end of the top rod fixedly connected.
[0011] Preferably, the plurality of air distribution pipes are arranged in a linear array, and the plurality of air outlets are evenly distributed on the top of the air distribution ports.
[0012] The advantages of this utility model are: 1. This utility model, by setting up a support frame, a mesh plate, an air supply pipe, an air distribution pipe, and a fan, allows the support frame to be installed inside the fermentation bed during use. The fermentation material is spread on top of the mesh plate, and then the fan is turned on. The fan draws in external air and sends it into the air supply pipe, which then delivers it to multiple different air distribution pipes. Air is also sprayed out from multiple air outlets. During large-scale fermentation, the air distribution pipe and the air supply pipe can distribute the air more evenly inside the support frame. The air flows upward from the mesh of the mesh plate, thereby ventilating the fermentation material, facilitating aerobic fermentation, and improving the fermentation effect. 2. This utility model, by setting up a rotating shaft, a support, and a connecting plate, allows multiple rotating shafts to be rotatably connected inside the bracket during use. The rotating shafts are connected to a mesh plate via the connecting plate, thereby enabling the mesh plate to rotate. This facilitates cleaning of the inside of the bracket by the staff and makes it convenient to use. Attached Figure Description
[0013] 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 these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the mesh structure of this utility model; Figure 3 This is a schematic diagram of the air distribution pipe structure of this utility model; Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model; Figure 5 This is a schematic diagram of the support arm of this utility model.
[0015] In the diagram: 11. Support; 12. Fan; 13. Air supply pipe; 14. Mesh plate; 15. Air distribution pipe; 16. Air outlet; 21. Support; 22. Shaft; 23. Connecting plate; 31. Motor; 32. Sprocket; 41. Top rod; 42. Spring; 51. Support arm; 52. Crossbeam; 7. Rubber pad. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0017] Specific implementation examples are given below.
[0018] Please see Figure 1-5 As shown, a ventilation device for an off-site fermentation bed of livestock and poultry manure includes a support frame 11 and a fan 12. Multiple mesh plates 14 are installed on the top of the support frame 11. An air supply pipe 13 is fixedly connected to the support frame 11. Multiple air distribution pipes 15 are fixedly connected to the side of the air supply pipe 13. Multiple air outlets 16 are opened on the top of the air distribution pipes 15. The air outlets 16 are located below the mesh plates 14. The air distribution pipes 15 are located inside the support frame 11. The air outlet end of the fan 12 is fixedly connected to the end of the air supply pipe 13. In use, the support frame 11 is installed inside the fermentation bed, the fermentation material is spread on top of the mesh plate 14, and then the blower 12 is turned on. The blower 12 draws in the outside air and sends it into the air supply pipe 13. Then, the air supply pipe 13 delivers the air to multiple different air distribution pipes 15, and the air is sprayed out from multiple air outlets 16. During large-scale fermentation, the air distribution pipes 15 and the air supply pipes 13 can distribute the air more evenly inside the support frame 11. The air flows upward from the mesh on the mesh plate 14, thereby ventilating the inside of the fermentation material, facilitating aerobic fermentation and improving the fermentation effect.
[0019] Furthermore, such as Figure 1-5 As shown, multiple pairs of supports 21 are fixedly connected to the inner sidewall of the bracket 11. Multiple rotating shafts 22 are provided inside the bracket 11. The rotating shafts 22 are rotatably connected to the supports 21. A connecting plate 23 is fixedly connected to the surface of the rotating shaft 22. The top of the connecting plate 23 is fixedly connected to the mesh plate 14. A motor 31 is fixedly connected to the bracket 11. The output end of the motor 31 is fixedly connected to the rotating shaft 22. A sprocket 32 is fixedly connected to each of the multiple rotating shafts 22. A chain drive is installed between the multiple sprockets 32. In use, the inside of the bracket 11 is rotatably connected to multiple rotating shafts 22 via a support 21. A mesh plate 14 is connected to the rotating shaft 22 via a connecting plate 23, so that the mesh plate 14 can rotate. This allows the staff to easily clean the inside of the bracket 11 and makes it convenient to use. A motor 31 is provided to drive the rotating shafts 22 to rotate. The rotating shafts 22 are transmitted through a chain and sprocket 32, so that the mesh plate 14 can be easily opened and rotated.
[0020] Furthermore, such as Figure 1-5 As shown, a crossbeam 52 is fixedly connected to the bottom of the bracket 11, and a support arm 51 is provided on the side of the mesh plate 14 away from the rotating shaft 22. The support arm 51 and the crossbeam 52 are fixedly connected, and the support arm 51 is located below the mesh plate 14. A sliding groove is provided inside the support arm 51, and a top rod 41 is slidably connected inside the sliding groove. A spring 42 is provided inside the sliding groove, and the top end of the spring 42 is fixedly connected to the bottom end of the top rod 41. In use, a crossbeam 52 is fixed to the bottom of the bracket 11, and a support arm 51 is fixed to the top of the crossbeam 52. The top of the support arm 51 is used to support and lift the side of the mesh plate 14 away from the rotating shaft 22, thereby improving its stability and reducing its shaking. The support arm 51 can also impact the mesh plate 14, thereby facilitating the clearing of the holes inside the mesh plate 14. A sliding groove is provided inside the support arm 51, and a spring 42 slides in the groove. The top of the spring 42 is connected to the top rod 41, thereby providing a contact buffer.
[0021] Furthermore, such as Figure 1-5 As shown, the plurality of air distribution pipes 15 are arranged in a linear array, and the plurality of air outlets 16 are evenly distributed on the top of the air distribution ports.
[0022] Furthermore, such as Figure 1-5 As shown, a rubber pad 7 is fixed to the top of the top rod 41. During use, the rubber pad 7 serves as a buffer against impact between the mesh plate 14 and the top rod 41.
[0023] Working principle: During use, the support frame 11 is installed inside the fermentation bed, and the fermentation material is spread on top of the mesh plate 14. Then, the blower 12 is turned on, drawing in external air and sending it into the air supply pipe 13. The air is then delivered to multiple different air distribution pipes 15 via the air supply pipe 13, and air is sprayed out from multiple air outlets 16. During large-scale fermentation, the air distribution pipes 15 and the air supply pipes 13 can distribute the air more evenly inside the support frame 11. The air flows upward from the mesh on the mesh plate 14, thus achieving ventilation inside the fermentation material and facilitating... Aerobic fermentation is carried out to improve the fermentation effect. During use, multiple rotating shafts 22 are rotatably connected inside the support 11 through the support 21. The rotating shafts 22 are connected to the mesh plate 14 through the connecting plate 23, so that the mesh plate 14 can rotate. This allows the mesh plate 14 to be rotated, which facilitates the cleaning of the inside of the support 11 by the staff. It is easy to use. The motor 31 drives the rotating shafts 22 to rotate. The rotating shafts 22 are transmitted through the chain and sprocket 32, which makes it easy to open and rotate the mesh plate 14. In use, a crossbeam 52 is fixed to the bottom of the bracket 11, and a support arm 51 is fixed to the top of the crossbeam 52. The top of the support arm 51 is used to support and lift the side of the mesh plate 14 away from the rotating shaft 22, thereby improving its stability and reducing its shaking. The support arm 51 can also impact the mesh plate 14, thereby facilitating the clearing of the holes inside the mesh plate 14. A sliding groove is provided inside the support arm 51, and a spring 42 slides in the groove. The top of the spring 42 is connected to the top rod 41, thereby providing a contact buffer.
[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0025] 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 merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A ventilation device for an off-site fermentation bed of livestock and poultry manure, comprising a support frame (11) and a fan (12); characterized in that: The top of the support (11) is equipped with multiple mesh plates (14), and an air supply pipe (13) is fixedly connected to the support (11). Multiple air distribution pipes (15) are fixedly connected to the side of the air supply pipe (13). Multiple air outlets (16) are opened at the top of the air distribution pipe (15). The air outlets (16) are located below the mesh plates (14). The air distribution pipes (15) are located inside the support (11). The air outlet of the fan (12) is fixedly connected to the end of the air supply pipe (13).
2. The ventilation device for off-site fermentation bed of livestock and poultry manure according to claim 1, characterized in that: Multiple pairs of supports (21) are fixedly connected to the inner side wall of the bracket (11). Multiple rotating shafts (22) are provided inside the bracket (11). The rotating shafts (22) are rotatably connected to the supports (21). A connecting plate (23) is fixedly connected to the surface of the rotating shaft (22). The top of the connecting plate (23) is fixedly connected to the mesh plate (14).
3. The ventilation device for off-site fermentation bed of livestock and poultry manure according to claim 2, characterized in that: A motor (31) is fixedly connected to the bracket (11). The output end of the motor (31) is fixedly connected to the rotating shaft (22). A sprocket (32) is fixedly connected to each of the rotating shafts (22). A chain drive is installed between the sprockets (32).
4. The ventilation device for off-site fermentation bed of livestock and poultry manure according to claim 3, characterized in that: A crossbeam (52) is fixedly connected to the bottom of the bracket (11), and a support arm (51) is provided on the side of the mesh plate (14) away from the rotating shaft (22). The support arm (51) is fixedly connected to the crossbeam (52), and the support arm (51) is located below the mesh plate (14).
5. The ventilation device for off-site fermentation bed of livestock and poultry manure according to claim 4, characterized in that: The support arm (51) has a sliding groove inside, and a top rod (41) is slidably connected inside the sliding groove. A spring (42) is provided inside the sliding groove, and the top end of the spring (42) is fixedly connected to the bottom end of the top rod (41).
6. The ventilation device for off-site fermentation bed of livestock and poultry manure according to claim 5, characterized in that: The multiple air distribution pipes (15) are arranged in a linear array, and the multiple air outlets (16) are evenly distributed on the top of the air distribution ports.