An in-situ static non-powered aeration fermentation device
By designing an in-situ static non-powered ventilated fermentation device, which utilizes natural wind speed for ventilation and odor control, the problem of high power consumption in existing aerobic composting devices is solved, achieving a low-cost and environmentally friendly composting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing aerobic composting equipment requires power for mixing and ventilation, resulting in high production and operating costs.
Design an in-situ static non-powered ventilated fermentation device, including a composting bin, an air inlet pipe, an air outlet pipe, a non-powered ventilator, and an odor treatment component. It utilizes natural wind speed for ventilation and treats odors through the odor treatment component to avoid environmental pollution.
It achieves natural ventilation without consuming energy, reducing operating costs, and ensures environmental friendliness through odor control components, while improving composting efficiency.
Smart Images

Figure CN224337482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerobic composting technology, and in particular to an in-situ static non-powered ventilated fermentation device. Background Technology
[0002] Agricultural waste mainly refers to organically biodegradable solid waste generated during agricultural production and rural life, specifically including livestock and poultry manure, crop straw, vegetable scraps, and kitchen waste, which can be converted into organic fertilizer after harmless treatment. Aerobic composting is a relatively good method for utilizing agricultural waste both domestically and internationally.
[0003] Currently, most aerobic composting equipment uses large-scale reactor-type fermentation devices, which require power consumption for stirring and ventilation during the composting process, resulting in high production and operating costs. Utility Model Content
[0004] This invention provides an in-situ static non-powered ventilated fermentation device to solve the problem that existing fermentation devices require power for stirring and ventilation, resulting in high production and operating costs.
[0005] This utility model provides an in-situ static non-powered ventilation fermentation device, including: a composting box, an air inlet pipe, an air outlet pipe, a ventilation pipe, a non-powered ventilator, and an odor treatment component;
[0006] The compost bin includes a base plate, a body, and a lid; the body surrounds the base plate, and the lid covers the body.
[0007] The air inlet pipe is located on the lower side of the box body, the air outlet pipe is located on the box cover, the non-powered ventilator is installed at the top of the air outlet pipe, the ventilation pipe is located inside the box body, and the ventilation pipe and the air outlet pipe are connected.
[0008] The odor treatment component is connected to the air outlet pipe and is used for the collection and treatment of odor.
[0009] According to the present invention, an in-situ static non-powered ventilation fermentation device is provided, wherein multiple air inlet pipes, air outlet pipes, ventilation pipes and non-powered ventilators are provided;
[0010] Multiple air inlet pipes are spaced apart along the length of the housing, and multiple non-powered ventilators are provided one-to-one with multiple air outlet pipes;
[0011] Each of the ventilation ducts is connected to the corresponding air outlet duct.
[0012] According to the present invention, an in-situ static non-powered ventilated fermentation device is provided, wherein the odor treatment component includes an air inlet pipe, a collection tower and an exhaust pipe;
[0013] The air inlet pipe and the air outlet pipe are respectively connected to the air outlet pipe and the collection tower, and the collection tower is filled with packing material.
[0014] According to the present invention, an in-situ static non-powered ventilated fermentation device is provided, wherein the box cover includes a first cover body and a second cover body;
[0015] The first cover and the second cover are arranged side by side, and both the first cover and the second cover can be flipped onto the top of the box to close or open the top of the box;
[0016] And / or, the side of the housing has an opening, and a side door is installed at the opening.
[0017] According to the present invention, an in-situ static non-powered ventilated fermentation device further includes: a liquid storage tank, a spray pipe, and a spray head;
[0018] The liquid storage tank is located on the outside of the composting bin, the nozzle is located on the top of the composting bin, and the spray pipe is connected to the liquid storage tank and the nozzle respectively.
[0019] According to the present invention, an in-situ static non-powered ventilated fermentation device is provided, wherein the compost bin further includes a mesh plate;
[0020] The mesh plate is disposed at the bottom of the box and spaced apart from the bottom plate, and the bottom plate is inclined relative to the horizontal plane;
[0021] The in-situ static non-powered ventilated fermentation device also includes a collection pipe and a collection box;
[0022] The collection pipe is located at the lowest point of the base plate and is connected to the collection box.
[0023] The in-situ static non-powered ventilated fermentation device provided by this utility model further includes: a liquid pump and a delivery pipe;
[0024] The delivery pipe is connected to the collection tank and the storage tank respectively, and the liquid pump is installed on the delivery pipe.
[0025] The in-situ static non-powered ventilated fermentation device provided by this utility model further includes: a temperature sensor and a display;
[0026] The temperature sensor is located inside the enclosure, and the temperature sensor is electrically connected to the display.
[0027] The in-situ static non-powered ventilated fermentation device provided by this utility model also includes a fixed frame;
[0028] The fixed frame is installed around the outside of the compost bin.
[0029] The in-situ static non-powered ventilated fermentation device provided by this utility model further includes: a heat insulation film;
[0030] The insulation film is rolled around the bottom of one side of the fixed frame. When the insulation film is stretched, it covers the outside of the fixed frame and encloses the compost bin.
[0031] When the insulation film is in a rolled-up state, it is stored at the bottom of the fixed frame.
[0032] The in-situ static non-powered ventilation fermentation device provided by this utility model, by setting up a modular composting box, requires no civil engineering and can be flexibly deployed according to site conditions. Furthermore, the composting box is equipped with an air inlet pipe and an air outlet pipe, and the non-powered ventilator is installed on the air outlet pipe. Natural ventilation can be achieved without setting up stirring and ventilation power equipment, which consumes no energy and has low operating costs. Moreover, the gas discharged from the composting box can be treated in a timely manner through an odor treatment component, ensuring environmental friendliness. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 This is one of the three-dimensional structural schematic diagrams of the in-situ static non-powered ventilated fermentation device provided by this utility model.
[0035] Figure 2 This is the second three-dimensional structural schematic diagram of the in-situ static non-powered ventilated fermentation device provided by this utility model.
[0036] Figure 3 This is a rear view structural schematic diagram of the in-situ static non-powered ventilated fermentation device provided by this utility model.
[0037] Figure label:
[0038] 1. Compost bin; 11. Base plate; 12. Bin body; 13. Lid; 14. Side door; 131. First lid; 132. Second lid;
[0039] 2. Air inlet duct; 3. Air outlet duct; 4. Non-powered ventilator; 5. Odor treatment components. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0041] The following is combined with Figures 1-3 The in-situ static non-powered ventilated fermentation device provided by the present invention will be described in detail through specific embodiments and application scenarios.
[0042] like Figure 1 and Figure 3 As shown, this embodiment provides an in-situ static non-powered ventilated fermentation device, including: a composting box 1, an air inlet pipe 2, an air outlet pipe 3, a ventilation pipe, a non-powered ventilator 4, and an odor treatment component 5.
[0043] The compost bin 1 includes a base plate 11, a bin body 12, and a bin cover 13; the bin body 12 surrounds the base plate 11, and the bin cover 13 covers the bin body 12.
[0044] The air inlet pipe 2 is located on the lower side of the housing 12, the air outlet pipe 3 is located on the housing cover 13, the non-powered ventilator 4 is installed at the top of the air outlet pipe 3, the ventilation pipe is located inside the housing 12, and the ventilation pipe and the air outlet pipe 3 are connected.
[0045] The odor treatment component 5 is connected to the air outlet duct 3, and the odor treatment component 5 is used for the collection and treatment of odor.
[0046] Understandably, the in-situ static non-powered ventilated fermentation device provided by this utility model is used to treat agricultural waste, which can be biodegradable organic waste rich in microorganisms, such as livestock and poultry manure, crop straw, vegetable waste, and kitchen waste. In the fermentation device, the agricultural waste will be decomposed by beneficial microorganisms, transforming it into useful biogas and fertilizer. During fermentation, a certain temperature and humidity supply is required, and the agricultural waste to be fermented needs to be kept warm to ensure effective fermentation.
[0047] In this embodiment, the compost bin 1 has a base plate 11, a body 12, and a lid 13 forming a sealed space that allows biological waste to ferment naturally within it. The base plate 11, body 12, and lid 13 are assembled together, and the side walls of the lid 13 and body 12 can be opened to facilitate the loading of agricultural waste and the unloading of organic fertilizer.
[0048] Specifically, the bottom plate 11, the box body 12, and the box cover 13 are all made of insulation board, which enhances the insulation performance of the composting box 1, increases the internal temperature of the composting box 1, accelerates the rate at which microorganisms decompose organic matter, and thus speeds up the composting maturation process.
[0049] Air entering the composting bin 1 from the air inlet duct 2 is discharged into the interior of the composting bin 1 through the ventilation duct. The heat generated during fermentation enters the air outlet duct 3 through the ventilation duct and is discharged to the outside under the suction of the non-powered ventilator 4.
[0050] The non-powered ventilator 4 utilizes natural wind speed to drive the turbine rotation and facilitate air convection inside and outside the compost bin 1. It accelerates and transforms any parallel airflow into a vertical upward airflow, thereby improving ventilation within the compost bin 1. In other words, the non-powered ventilator 4 creates suction, accelerating the entry of external air into the compost bin 1, enhancing gas exchange between the inside and outside of the compost bin 1. External air can promptly replenish oxygen, preventing oxygen deficiency inside the compost bin 1 and accelerating the degradation and maturation of organic matter.
[0051] Specifically, the non-powered ventilator 4 can be a wind cap.
[0052] Because the gas inside compost bin 1 exchanges frequently with the outside gas, the organic matter degradation and maturation process will produce odors, and direct emission will pollute the environment.
[0053] Furthermore, this embodiment also includes an odor treatment component 5, which is located in the air outlet duct 3. The odor treatment component 5 eliminates the odor generated in the compost bin 1 before it is discharged, thereby achieving the deodorization effect and preventing the gas discharged from the compost bin 1 from polluting the environment.
[0054] In practical applications, the agricultural waste in this embodiment is first processed by crushing one or more raw materials to below 5cm, adjusting the moisture content to 60%, and mixing them evenly. The side wall of the box cover 13 or the box body 12 is opened, and the mixed agricultural waste is placed in the composting box 1 using a loader or grab bucket, ensuring that the distance between the agricultural waste and the box cover 13 is 10cm. The box cover 13 is then closed. The agricultural waste is allowed to ferment naturally in the composting box 1. Once the organic matter has degraded and matured, the side wall of the box cover 13 or the box body 12 is opened, and the organic fertilizer is discharged using a loader.
[0055] The in-situ static non-powered ventilation fermentation device provided by this utility model, by setting up a modular composting box 1, requires no civil engineering and can be flexibly arranged according to the site conditions. Furthermore, the composting box 1 is equipped with an air inlet pipe 2 and an air outlet pipe 3, and the non-powered ventilator 4 is installed in the air outlet pipe 3. Natural ventilation can be achieved without setting up stirring and ventilation power equipment, which consumes no energy and has low operating costs. Moreover, the gas discharged from the composting box 1 can be treated in a timely manner through the odor treatment component 5, ensuring environmental friendliness.
[0056] like Figure 1 and Figure 3 As shown, in this embodiment, there are multiple air inlet pipes 2, air outlet pipes 3, ventilation pipes and non-powered ventilators 4.
[0057] Multiple air inlet pipes 2 are spaced apart along the length of the housing 12, and multiple non-powered ventilators 4 are correspondingly arranged with multiple air outlet pipes 3.
[0058] Each ventilation duct is connected to its corresponding air outlet duct 3.
[0059] Understandably, multiple air inlet pipes 2 can be arranged in an array along the length of the container 12. Multiple air inlet pipes 2 can simultaneously draw in more external air, which helps to enhance the disturbance of internal and external air, increase the oxygen inside the composting container 1, and help to accelerate the degradation and maturation of organic matter.
[0060] At the same time, multiple ventilation pipes, multiple air outlet pipes 3 and multiple non-powered ventilators 4 can also accelerate the disturbance of internal and external air, making the aerodynamic field inside the composting bin 1 more active, strengthening the exchange of internal and external air, and promoting the rapid degradation and fermentation of organic matter.
[0061] like Figure 3 As shown, the odor treatment component 5 in this embodiment includes an air inlet pipe, a collection tower, and an exhaust pipe.
[0062] The air inlet pipe and the exhaust pipe are connected to the air outlet pipe 3 and the collection tower, respectively. The collection tower is filled with packing material.
[0063] Understandably, the collection tower collects the odors produced during fermentation to purify the air discharged into the surrounding environment through the exhaust duct 3. The collection tower is equipped with packing material that can adsorb the odors. Specifically, the adsorption tower can be equipped with multi-stage biochar filter media, ensuring complete adsorption of the odors through multi-stage adsorption.
[0064] like Figure 1 and Figure 2 As shown, the box cover 13 in this embodiment includes a first cover body 131 and a second cover body 132.
[0065] The first cover 131 and the second cover 132 are arranged side by side. Both the first cover 131 and the second cover 132 can be flipped and placed on the top of the box 12 to close or open the top of the box 12.
[0066] Understandably, when using a forklift to load agricultural waste into the compost bin 1, it can be loaded from the top cover 13. The first cover 131 and the second cover 132 can be rotated around the bin body 12 to open or close the top of the bin body 12, facilitating easy switching between the states of agricultural waste loading into the compost bin 1.
[0067] like Figure 1 As shown, the side of the box 12 in this embodiment has an opening, and a side door 14 is installed at the opening.
[0068] Understandably, after the agricultural waste in compost bin 1 has finished fermenting, the organic fertilizer can be removed from the side of bin 12. The loading and unloading of the organic fertilizer is accomplished by opening and closing the side door 14.
[0069] Optionally, only one side door 14 may be provided, with one side door 14 located on one side of the housing 12; or two side doors 14 may be provided, with two side doors 14 located on opposite sides of the housing 12.
[0070] The in-situ static non-powered ventilated fermentation device of this embodiment also includes: a storage tank, a spray pipe, and a nozzle. The storage tank is located outside the composting tank 1, the nozzle is located on the top of the composting tank 1, and the spray pipe is connected to the storage tank and the nozzle respectively.
[0071] Understandably, during the fermentation of agricultural waste, a suitable moisture content is more conducive to the growth, reproduction, and metabolism of microorganisms, thereby accelerating the decomposition of organic matter and improving the composting maturity.
[0072] The storage tank is used to store the spray solution injected into agricultural waste. The spray solution is sprayed into the agricultural waste through the spray pipe from the nozzle.
[0073] Optionally, multiple nozzles can be set, with the nozzles spaced apart along the length of the container 12, to ensure uniform spraying within the composting container 1 during spraying and to ensure consistent moisture content within the composting container 1.
[0074] The compost bin 1 in this embodiment also includes a mesh plate. The mesh plate is disposed at the bottom of the bin body 12 and spaced apart from the bottom plate 11, which is inclined relative to the horizontal plane. The in-situ static non-powered ventilated fermentation device also includes a collection pipe and a collection box.
[0075] The collection pipe is located at the lowest point of the base plate 11 and is connected to the collection box.
[0076] Understandably, leachate is produced during composting. Leachate contains high concentrations of organic matter, ammonia nitrogen, and heavy metals. If it is not collected and seeps directly into the soil, it will cause soil pollution and also pollute groundwater.
[0077] In this embodiment, the mesh plate has mesh openings. Agricultural waste is placed on the mesh plate, and the leachate produced during fermentation can fall through the mesh openings onto the base plate 11. Because the base plate 11 is inclined with a certain slope, the leachate on the base plate 11 can flow down the slope towards the collection pipe at a lower position and collect. Finally, the leachate flows into the collection box through the collection pipe, completing the collection of leachate.
[0078] The in-situ static non-powered aerated fermentation device of this embodiment also includes a liquid pump and a delivery pipe. The delivery pipe is connected to the collection tank and the storage tank respectively, and the liquid pump is installed on the delivery pipe.
[0079] Understandably, since the leachate in the collection tank can be transported to the storage tank through a delivery pipe, and then sprayed again onto the agricultural waste during the fermentation process via nozzles, the leachate is reused. Re-spraying the leachate into the compost material increases its moisture content, providing a suitable environment for microbial growth and reproduction, thereby accelerating the decomposition of organic matter and promoting compost maturation. Furthermore, the nitrogen, phosphorus, and potassium nutrients contained in the leachate can be returned to the compost material through re-spraying, preventing nutrient loss and improving the compost's fertilizer efficiency.
[0080] The in-situ static non-powered ventilated fermentation device of this embodiment also includes a temperature sensor and a display. The temperature sensor is located inside the housing 12, and the temperature sensor and the display are electrically connected.
[0081] Understandably, the optimal temperature during composting is 55℃~60℃. Within this temperature range, there is a rich variety, large quantity, and high activity of microorganisms, which can ensure a high rate of organic matter degradation. At the same time, it can also kill parasites, pathogens, and harmful bacteria in agricultural waste, thus achieving harmless composting.
[0082] A temperature sensor is used to monitor the temperature changes of the compost material in compost bin 1 in real time and display the data on a monitor. Users can intuitively read the temperature of the compost material in compost bin 1 from the monitor and take appropriate measures to bring the temperature back to the suitable range when the temperature is too low or too high, so as to achieve reasonable temperature control of the compost material.
[0083] The in-situ static non-powered ventilated fermentation device of this embodiment also includes a fixed frame. The fixed frame is installed around the outside of the compost bin 1.
[0084] Understandably, the fixed frame is used to fix the base plate 11, the box body 12 and the box cover 13, making the connection between the base plate 11, the box body 12 and the box cover 13 more stable and reliable.
[0085] Specifically, the fixed frame includes connecting pipes, elbows, and fasteners. The connecting pipes form a three-dimensional frame structure, the elbows are used to connect the bent parts, and the fasteners are used to connect and fix the connecting pipes and elbows.
[0086] The in-situ static non-powered ventilated fermentation device of this embodiment also includes: a heat-insulating film. The heat-insulating film is rolled around the bottom of one side of the fixed frame. When the heat-insulating film is stretched, it covers the outside of the fixed frame, enclosing the compost bin 1 inside.
[0087] When the insulation film is rolled up, it is stored at the bottom of the fixed frame.
[0088] Understandably, in order to ensure that the temperature inside compost bin 1 is maintained at 55℃~60℃ during winter or periods of low temperature, this embodiment is equipped with an insulation film for heat preservation during the fermentation process.
[0089] When the temperature is high, the insulation film is rolled up and stored at the bottom of the fixed frame. When the temperature is low, the insulation film is stretched and covers the entire compost bin 1. With the support of the fixed frame, the insulation film insulates the compost bin 1.
[0090] Specifically, the insulation film can be a polyethylene insulation film.
[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An in-situ static non-powered ventilated fermentation device, characterized in that, include: Compost bins, air inlet ducts, air outlet ducts, ventilation ducts, non-powered ventilators, and odor control components; The compost bin includes a base plate, a body, and a lid; the body surrounds the base plate, and the lid covers the body. The air inlet pipe is located on the lower side of the box body, the air outlet pipe is located on the box cover, the non-powered ventilator is installed at the top of the air outlet pipe, the ventilation pipe is located inside the box body, and the ventilation pipe and the air outlet pipe are connected. The odor treatment component is connected to the air outlet pipe and is used for the collection and treatment of odor.
2. The in-situ static non-powered ventilated fermentation device according to claim 1, characterized in that, The air inlet pipe, the air outlet pipe, the ventilation pipe, and the non-powered ventilator are all provided in multiple units; Multiple air inlet pipes are spaced apart along the length of the housing, and multiple non-powered ventilators are correspondingly arranged with multiple air outlet pipes; Each of the ventilation ducts is connected to the corresponding air outlet duct.
3. The in-situ static non-powered ventilated fermentation device according to claim 1, characterized in that, The odor treatment assembly includes an inlet pipe, a collection tower, and an exhaust pipe; The air inlet pipe and the air outlet pipe are respectively connected to the air outlet pipe and the collection tower, and the collection tower is filled with packing material.
4. The in-situ static non-powered ventilated fermentation device according to claim 1, characterized in that, The box lid includes a first lid body and a second lid body; The first cover and the second cover are arranged side by side, and both the first cover and the second cover can be flipped onto the top of the box to close or open the top of the box; And / or, the side of the housing has an opening, and a side door is installed at the opening.
5. The in-situ static non-powered ventilated fermentation device according to claim 1, characterized in that, Also includes: Storage tank, spray pipes, and nozzles; The liquid storage tank is located on the outside of the composting bin, the nozzle is located on the top of the composting bin, and the spray pipe is connected to the liquid storage tank and the nozzle respectively.
6. The in-situ static non-powered ventilated fermentation device according to claim 5, characterized in that, The compost bin also includes a mesh panel; The mesh plate is disposed at the bottom of the box and spaced apart from the bottom plate, and the bottom plate is inclined relative to the horizontal plane; The in-situ static non-powered ventilated fermentation device also includes a collection pipe and a collection box; The collection pipe is located at the lowest point of the base plate and is connected to the collection box.
7. The in-situ static non-powered ventilated fermentation device according to claim 6, characterized in that, Also includes: Liquid pumps and delivery pipes; The delivery pipe is connected to the collection tank and the storage tank respectively, and the liquid pump is installed on the delivery pipe.
8. The in-situ static non-powered ventilated fermentation device according to any one of claims 1 to 7, characterized in that, Also includes: Temperature sensor and display; The temperature sensor is located inside the enclosure, and the temperature sensor is electrically connected to the display.
9. The in-situ static non-powered ventilated fermentation device according to claim 1, characterized in that, It also includes a fixed frame; The fixed frame is installed around the outside of the compost bin.
10. The in-situ static non-powered ventilated fermentation device according to claim 9, characterized in that, Also includes: Thermal insulation film; The insulation film is rolled around the bottom of one side of the fixed frame. When the insulation film is stretched, it covers the outside of the fixed frame and encloses the compost bin. When the insulation film is in a rolled-up state, it is stored at the bottom of the fixed frame.