Closed intelligent aerobic fermentation reactor

Abstract

The utility model belongs to fermentation reactor field relates to a kind of closed type intelligent aerobic fermentation reactor, including reaction tank, stirring lifting cylinder is installed in reaction tank, and stirring lifting cylinder is fixed between reaction tank by support, and the top surface middle part of reaction tank is rotatably installed with stirring lifting shaft, the outside of stirring lifting shaft is installed with stirring lifting auger, and the inner wall of stirring lifting auger is attached with stirring lifting cylinder, heating pipe is installed between the inner wall of the top end outside of stirring lifting cylinder and reaction tank, and aeration pipe assembly is installed on the inner wall of reaction tank and located above heating pipe.The utility model can be located in the upward transport of manure from stirring lifting cylinder inside at the bottom of reaction tank, and from the top opening of stirring lifting cylinder, so that the manure located at the bottom of reaction tank can continuously reach the uppermost of manure in reaction tank interior, so as to realize the stirring of manure, so that manure can be fully contacted with oxygen, avoid the uneven mixing of manure accumulated at the bottom and air.

Description

Technical Field

[0001] This utility model relates to the field of fermentation reactor technology, specifically to a closed intelligent aerobic fermentation reactor. Background Technology

[0002] With the rapid development of my country's livestock and poultry farming industry, the scale of farming has expanded dramatically. While large-scale livestock and poultry farms ensure the supply of animal-derived food such as meat and poultry eggs to residents, they have also caused prominent environmental pollution problems. The livestock and poultry manure produced by these farms has the characteristics of high concentration of organic load, high ammonia nitrogen content, and high concentration of suspended solids. Moreover, it has complex biodegradability and is difficult to treat, and has become an important point source of pollution for surface water and groundwater.

[0003] Aerobic fermentation degrades organic matter through microorganisms, enabling the reduction, harmlessness, and resource utilization of organic waste. Currently widely used composting technology has the main drawbacks of large land area requirements, long fermentation time, and reduced fermentation speed in low-temperature weather. Although the efficiency or effect of aerobic composting can be improved by means of forced oxygen supply through ventilation, turning or stirring during composting, the heat and odor generated during fermentation are emitted into the atmosphere, causing environmental pollution.

[0004] The success of aerobic fermentation depends on the ability to oxygenate the fermentation broth. If the oxygen supply is insufficient, the fermentation process is prone to turning into anaerobic fermentation, leading to changes in the metabolic pathways and rates of microorganisms, or even the death of microorganisms. However, in most existing fermentation reactors, the aeration pipes are located in the manure. During the stirring process, the aeration pipe holes are easily blocked by the manure. Furthermore, manure fermentation requires a certain temperature, and heating pipes are often installed inside the reactor to heat the manure. However, the manure tends to adhere to the outside of the heating pipes and solidify, which can affect the normal use of the heating pipes.

[0005] Therefore, this invention provides a closed-loop intelligent aerobic fermentation reactor to solve the above problems. Utility Model Content

[0006] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a closed-loop intelligent aerobic fermentation reactor. To achieve the above objectives, the technical solution adopted by this utility model is as follows: A closed-loop intelligent aerobic fermentation reactor includes a reaction tank. Inside the reaction tank, a material-turning lifting cylinder with open top and bottom is coaxially fixedly installed. The bottom of the outer side of the material-turning lifting cylinder is fixedly connected to the inner wall of the reaction tank by a bracket. A material-turning lifting shaft located inside the material-turning lifting cylinder is installed through and rotatably in the middle of the top surface of the reaction tank. A material-turning lifting auger is installed on the outer side of the material-turning lifting shaft and fits against the inner wall of the material-turning lifting cylinder. A heating pipe is installed between the outer top of the material-turning lifting cylinder and the inner wall of the reaction tank. An aeration pipe assembly located above the heating pipe is installed on the inner wall of the reaction tank.

[0007] Preferably, a feed pipe is installed through the top of the reaction vessel, a discharge pipe is installed through the middle of the bottom surface of the reaction vessel, the bottom of the tilting and lifting shaft is located above the discharge pipe, and flanges are installed on the outer sides of the ends of both the feed pipe and the discharge pipe.

[0008] Preferably, an exhaust pipe is installed through the top of the reaction vessel, and a flange is installed on the outer side of the end of the exhaust pipe.

[0009] Preferably, a reducer connected to a material-turning lifting shaft is installed on the top of the reaction vessel, and a material-turning motor is installed on the top of the reducer.

[0010] Preferably, the heating tubes are annular, and there are multiple heating tubes located on the same horizontal plane, with their diameters decreasing sequentially from the outside to the inside.

[0011] Preferably, a fixed plate located above the top of the material turning and lifting cylinder is coaxially fixedly installed on the outer side of the material turning and lifting shaft. Multiple "L"-shaped scraper connecting rods are fixedly installed on the outer surface of the fixed plate. The end of each scraper connecting rod away from the fixed plate is bent downward and fixedly installed with a heating tube scraper. Multiple heating tube grooves are opened at the bottom of the heating tube scraper, and the multiple heating tube grooves are respectively fitted with multiple heating tubes.

[0012] Preferably, the aeration pipe assembly includes an annular air pipe fixedly installed on the inner wall of the reaction tank. Multiple aeration pipes communicating with the interior of the annular air pipe are fixedly installed on the inner side of the annular air pipe. Multiple aeration holes are penetrating the bottom of each aeration pipe. An air supply pipe communicating with the interior of the annular air pipe is fixedly installed on the outer side of the annular air pipe. The other end of the air supply pipe extends to the outside of the reaction tank and is fitted with a flange.

[0013] Preferably, the inner wall of the reaction vessel is equipped with a plurality of circumferentially staggered crushing plates, the cross-section of which is a triangle with the tip pointing upwards.

[0014] Preferably, a steel structure support is installed on the outside of the reaction vessel.

[0015] The beneficial effects of this utility model are as follows: 1. When the manure to be fermented is placed inside the reaction tank, the turning and lifting shaft can be rotated to drive the turning and lifting auger to rotate, thereby conveying the manure at the bottom of the reaction tank upward from inside the turning and lifting cylinder and flowing out from the top opening of the turning and lifting cylinder. This allows the manure at the bottom of the reaction tank to continuously reach the top of the manure inside the reaction tank, thereby turning the manure and ensuring that the manure can fully contact oxygen, avoiding uneven mixing of the manure accumulated at the bottom with the air.

[0016] 2. When the manure flows out from the top opening of the turning and lifting cylinder and falls downwards, it comes into contact with the heating pipe, thereby raising the temperature of the manure and allowing it to maintain a constant temperature for fermentation in the reaction tank. The aeration pipe assembly sprays air downwards, ensuring that the microorganisms in the manure receive sufficient oxygen for aerobic fermentation.

[0017] 3. When the manure falls downward from the top opening of the tipping and lifting cylinder, manure will remain on the surface of the heating tube. To prevent the manure from drying on the surface of the heating tube, the rotating tipping and lifting shaft can drive the fixed plate and multiple scraper connecting rods to move circumferentially, thereby driving multiple heating tube scrapers to move circumferentially. The groove of the heating tube fits into the surface of the heating tube, and the circumferential movement of the heating tube scrapers can scrape off the manure on the surface of the heating tube, preventing the manure from drying on the surface of the heating tube and affecting its use.

[0018] 4. Air is supplied to the annular air pipe and multiple aeration pipes through the air supply pipe. Then, the air is sprayed out from the aeration holes below the multiple aeration pipes, so that the sewage flowing out from the top opening of the turning and lifting cylinder can fully contact the air. Since the aeration pipe is above the sewage, it will not come into contact with the sewage, so there is no situation where the aeration holes are blocked by sewage. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0020] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0021] Figure 3 This is a front sectional view of the present invention.

[0022] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0024] In the diagram: 1. Reaction tank; 2. Tilting and lifting cylinder; 3. Tilting and lifting shaft; 4. Tilting and lifting auger; 5. Heating pipe; 6. Aeration pipe assembly; 7. Feed pipe; 8. Discharge pipe; 9. Exhaust pipe; 10. Reducer; 11. Tilting motor; 12. Fixed plate; 13. Scraper connecting rod; 14. Heating pipe scraper; 15. Heating pipe groove; 16. Annular air pipe; 17. Aeration pipe; 18. Aeration hole; 19. Air supply pipe; 20. Crushing plate; 21. Steel structure support. Detailed Implementation

[0025] The following will refer to Figures 1 to 5 The description provides a detailed description of each embodiment of the present invention.

[0026] As attached Figures 1-5 As shown, a closed-loop intelligent aerobic fermentation reactor includes a reaction tank 1. A material-turning and lifting cylinder 2, with open top and bottom ends, is coaxially fixedly installed inside the reaction tank 1. The top and bottom ends of the material-turning and lifting cylinder 2 are at a certain distance from the top and bottom ends of the reaction tank 1. The bottom of the outer side of the material-turning and lifting cylinder 2 is fixedly connected to the inner wall of the reaction tank 1 by a bracket. A material-turning and lifting shaft 3, located inside the material-turning and lifting cylinder 2, is rotatably installed through the center of the top surface of the reaction tank 1. A material-turning and lifting auger 4 is installed on the outer side of the material-turning and lifting shaft 3. The material-turning and lifting auger 4 is in contact with the inner wall of the material-turning and lifting cylinder 2. When manure to be fermented is placed inside the reaction tank 1, the material-turning and lifting shaft 3 can be rotated to drive the material-turning and lifting auger 4 to rotate, thereby conveying the manure at the bottom of the reaction tank 1 upwards from inside the material-turning and lifting cylinder 2 and flowing out from the top opening of the material-turning and lifting cylinder 2, allowing the manure at the bottom of the reaction tank 1 to be... The manure continuously reaches the top of the manure inside the reaction tank 1, thus turning the manure and ensuring it comes into full contact with oxygen. This prevents uneven mixing of the manure accumulated at the bottom with the air. A heating pipe 5 is installed between the outer top of the turning and lifting cylinder 2 and the inner wall of the reaction tank 1. The heating pipe 5 is connected to a power source. When the manure flows out from the top opening of the turning and lifting cylinder 2 and falls downward, it comes into contact with the heating pipe 5, thereby raising the temperature of the manure and maintaining a constant temperature for fermentation inside the reaction tank 1. An aeration pipe assembly 6 is installed on the inner wall of the reaction tank 1, located above the heating pipe 5. The aeration pipe assembly 6 can spray air downward. When the manure flows out from the top opening of the turning and lifting cylinder 2 and falls downward, it comes into contact with the air sprayed downward by the aeration pipe assembly 6, thus providing sufficient oxygen for the microorganisms in the manure to carry out an aerobic fermentation reaction.

[0027] As attached Figures 1-3As shown, a feed pipe 7 is installed through the top of the reaction tank 1, and a discharge pipe 8 is installed through the middle of the bottom surface of the reaction tank 1. The bottom of the turning and lifting shaft 3 is above the discharge pipe 8. Flanges are installed on the outer sides of the ends of both the feed pipe 7 and the discharge pipe 8. The manure to be fermented can be added into the reaction tank 1 through the feed pipe 7, and can be sealed by bolting a sealing plate on the flange, or the manure can be transported through the flange. The fermented manure can be discharged from the discharge pipe 8. During the fermentation process, the discharge pipe 8 can be sealed by bolting a sealing plate on the flange, or the fermented manure can be directly transported to a designated location by connecting to the discharge conveying pipe. The turning and lifting shaft 3 drives the turning and lifting auger 4 to rotate and lift the manure from inside the turning and lifting cylinder 2 upward, thereby turning the manure. When the turning and lifting shaft 3 rotates in the opposite direction, the turning and lifting auger 4 rotates in the opposite direction, which can transport the manure inside the reaction tank 1 downward, causing the manure to be discharged from the discharge pipe 8.

[0028] As attached Figures 1-3 As shown, an exhaust pipe 9 is installed through the top of the reaction vessel 1. A flange is installed on the outer side of the end of the exhaust pipe 9. The exhaust pipe 9 is connected to the gas treatment unit through the flange, thereby treating the gas generated during the fermentation process.

[0029] As attached Figures 1-3 As shown, a reducer 10 connected to the turning and lifting shaft 3 is installed on the top of the reaction tank 1. A turning motor 11 is installed on the top of the reducer 10. The turning motor 11 is connected to a power supply and a controller. When started, it can drive the turning and lifting shaft 3 and the turning and lifting auger 4 to rotate and lift and turn the manure.

[0030] As attached Figures 2-5 As shown, the heating tube 5 is annular and there are multiple heating tubes 5. The multiple heating tubes 5 are on the same horizontal plane and their diameters decrease from the outside to the inside. The multiple heating tubes 5 are supported by a base plate installed between the inner wall of the reaction tank 1 and the outer side of the material tilting and lifting cylinder 2. When the sewage flowing out from the top opening of the material tilting and lifting cylinder 2 falls downward, it can come into contact with the multiple heating tubes 5, thereby heating and maintaining a certain temperature of the sewage.

[0031] As attached Figures 2-5 As shown, a fixed plate 12 located above the top of the material turning and lifting cylinder 2 is coaxially fixedly installed on the outer side of the material turning and lifting shaft 3. Multiple "L"-shaped scraper connecting rods 13 are fixedly installed on the outer side of the fixed plate 12. Each scraper connecting rod 13 is bent downward at the end away from the fixed plate 12 and a heating tube scraper 14 is fixedly installed thereon. Multiple heating tube grooves 15 are opened at the bottom of the heating tube scraper 14, and the multiple heating tube grooves 15 are respectively fitted into multiple heating tubes 5. When the manure falls downward from the top opening of the tipping and lifting cylinder 2, manure will remain on the surface of the heating tube 5. In order to prevent the manure from drying on the surface of the heating tube 5, the tipping and lifting shaft 3 can drive the fixed plate 12 and multiple scraper connecting rods 13 to move circumferentially when it rotates, thereby driving multiple heating tube scrapers 14 to move circumferentially. The heating tube groove 15 is in contact with the surface of the heating tube 5. When the heating tube scrapers 14 move circumferentially, the manure on the surface of the heating tube 5 can be scraped off, preventing the manure from drying on the surface of the heating tube 5 and affecting its use.

[0032] As attached Figures 2-5 As shown, the aeration pipe assembly 6 includes an annular air pipe 16 fixedly installed on the inner wall of the reaction tank 1. Multiple aeration pipes 17 communicating with the interior of the annular air pipe 16 are fixedly installed on the inner side of the annular air pipe 16. The multiple aeration pipes 17 are evenly distributed circumferentially above the top opening of the turning and lifting cylinder 2. Multiple aeration holes 18 penetrate through the bottom of each aeration pipe 17. An air supply pipe 19 communicating with the interior of the annular air pipe 16 is fixedly installed on the outer side of the annular air pipe 16. The other end of the air supply pipe 19 penetrates to the outside of the reaction tank 1 and is fitted with a flange. The air supply pipe 19 is connected to the pipe of the air supply device through the flange. Air can be supplied to the annular air pipe 16 and the interior of the multiple aeration pipes 17 through the air supply pipe 19. Then, the air is sprayed out from the aeration holes 18 below the multiple aeration pipes 17, so that the sewage flowing out from the top opening of the turning and lifting cylinder 2 can fully contact the air. Since the aeration pipes 17 are above the sewage, they will not contact the sewage, so there is no situation where the aeration holes 18 are blocked by sewage.

[0033] As attached Figures 2-5 As shown, the inner wall of the reaction tank 1 is equipped with several circumferentially staggered crushing plates 20. The cross-section of the crushing plate 20 is a triangle with the tip pointing upwards. When the sewage flows out from the top opening of the turning and lifting cylinder 2 and falls downwards, the sewage will continuously fall onto the crushing plates 20, thereby crushing the sewage.

[0034] As attached Figure 1 As shown, a steel structure support 21 is installed on the outside of the reaction vessel 1. It can be made by welding square steel, triangular iron, etc., and is used to support the reaction vessel 1.

[0035] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A closed-loop intelligent aerobic fermentation reactor, characterized in that, The reaction vessel includes a reaction vessel (1), and a material-turning lifting cylinder (2) with open top and bottom is coaxially fixedly installed inside the reaction vessel (1). The bottom of the outer side of the material-turning lifting cylinder (2) is fixedly connected to the inner wall of the reaction vessel (1) by a bracket. A material-turning lifting shaft (3) located inside the material-turning lifting cylinder (2) is installed through and rotatably in the middle of the top surface of the reaction vessel (1). A material-turning lifting auger (4) is installed on the outer side of the material-turning lifting shaft (3). The material-turning lifting auger (4) is in contact with the inner wall of the material-turning lifting cylinder (2). A heating pipe (5) is installed between the outer top of the material-turning lifting cylinder (2) and the inner wall of the reaction vessel (1). An aeration pipe assembly (6) located above the heating pipe (5) is installed on the inner wall of the reaction vessel (1).

2. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, The top of the reaction vessel (1) is connected to a feed pipe (7), and the bottom of the reaction vessel (1) is connected to a discharge pipe (8). The bottom of the material lifting shaft (3) is located above the discharge pipe (8). Flanges are installed on the outer sides of the ends of both the feed pipe (7) and the discharge pipe (8).

3. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, An exhaust pipe (9) is installed through the top of the reaction vessel (1), and a flange is installed on the outer side of the end of the exhaust pipe (9).

4. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, The top of the reaction vessel (1) is equipped with a reducer (10) connected to the material turning and lifting shaft (3), and the top of the reducer (10) is equipped with a material turning motor (11).

5. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, The heating tube (5) is ring-shaped and there are multiple heating tubes (5) on the same horizontal plane, and the diameter decreases from the outside to the inside.

6. The closed-loop intelligent aerobic fermentation reactor according to claim 5, characterized in that, The outer side of the material turning and lifting shaft (3) is coaxially fixedly installed with a fixed plate (12) located above the top of the material turning and lifting cylinder (2). Multiple "L"-shaped scraper connecting rods (13) are fixedly installed on the outer side of the fixed plate (12). Each scraper connecting rod (13) is bent downward at the end away from the fixed plate (12) and fixedly installed with a heating tube scraper (14). Multiple heating tube grooves (15) are opened at the bottom of the heating tube scraper (14). The multiple heating tube grooves (15) are respectively fitted with multiple heating tubes (5).

7. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, The aeration pipe assembly (6) includes an annular air pipe (16) fixedly installed on the inner wall of the reaction tank (1). Multiple aeration pipes (17) communicating with the interior of the annular air pipe (16) are fixedly installed on the inner side of the annular air pipe (16). Multiple aeration holes (18) are passed through the bottom of each aeration pipe (17). An air supply pipe (19) communicating with the interior of the annular air pipe (16) is fixedly installed on the outer side of the annular air pipe (16). The other end of the air supply pipe (19) passes through the outer side of the reaction tank (1) and is fitted with a flange.

8. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, The inner wall of the reaction vessel (1) is equipped with several circumferentially staggered crushing plates (20), and the cross-section of the crushing plates (20) is a triangle with the tip pointing upwards.

9. The closed-loop intelligent aerobic fermentation reactor according to claim 1, characterized in that, A steel structure support (21) is installed on the outside of the reaction vessel (1).

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