A compost fermentation device using duck blood proteinase

Abstract

The present application relates to compost fermentation technical field, especially to a kind of compost fermentation device using duck blood protein enzyme.The technical scheme includes: support, jar body and top end top cover rotationally installed on support;Worm, worm wheel are arranged between jar body and support, worm engages worm wheel and one end is provided with hand wheel, can drive jar body rotation angle adjustment.The inner container of jar body is divided into two parts by drain plate;Top cover is provided with motor-driven stirring blade, air inlet pipe and air outlet pipe.The drain valve with elastic plugging element is arranged in the drain outlet of jar body bottom;It is also provided with air pressure control mechanism, including pressure valve on top cover and adjusting valve on air outlet pipe, can be raised by switching adjusting valve state The air pressure in jar, realize air pressure auxiliary drainage.The present application is through angle-adjustable jar body, stirring mixing, air pressure auxiliary drainage and ventilation heat preservation and other structures synergies, make duck blood protein enzyme and material fully contact, maintain stable fermentation environment, realize efficient enzymatic fermentation and percolate convenient discharge, improve compost efficiency and quality, reduce operating intensity.

Description

Technical Field

[0001] This invention relates to the field of composting fermentation technology, and specifically to a composting fermentation device utilizing duck blood protease. Background Technology

[0002] With the rapid development of livestock and poultry farming, the amount of by-products such as duck blood generated during slaughter is increasing year by year. How to achieve the harmless and resource-based utilization of such waste has become an important problem that the industry urgently needs to solve. Duck blood is rich in protein, and by extracting proteases from it and applying them to organic material composting fermentation, the degradation of materials can be significantly accelerated, composting efficiency and product quality can be improved, which is one of the effective ways to realize the resource utilization of duck blood. However, most existing composting fermentation devices are general-purpose designs and have not been specifically adapted to the characteristics of duck blood proteases. In practical applications, there are many technical pain points, which seriously restrict the large-scale promotion and application of duck blood protease composting technology.

[0003] Currently, existing composting fermentation equipment generally suffers from uneven material mixing. The enzymatic hydrolysis efficiency of duck blood protease is highly dependent on the adequacy of its contact with organic materials. However, existing equipment cannot turn the materials, which easily leads to material caking and clumping. This prevents the duck blood protease from making full contact with the materials, resulting in insufficient enzymatic hydrolysis. This not only prolongs the fermentation cycle but also causes uneven composting and affects the quality of the compost product.

[0004] Regarding fermentation environment control, existing devices suffer from low temperature control precision and poor heat preservation. Duck blood protease is extremely sensitive to temperature, requiring a stable temperature environment for its activity. However, existing composting fermentation devices often lack efficient heat preservation structures, resulting in intense heat exchange between the inside and outside of the tank and large temperature fluctuations. This easily leads to a decrease in duck blood protease activity or even inactivation. Furthermore, although some devices are equipped with heat exchange structures, they lack precise temperature monitoring and coordinated control mechanisms, making it impossible to adjust the tank temperature in real time according to the fermentation process. This further affects enzymatic hydrolysis and fermentation efficiency, making it difficult to ensure the stability of the composting process.

[0005] Furthermore, a large amount of leachate is generated during the composting fermentation process. Existing devices mostly use manual valves for drainage, which is cumbersome to operate and has poor sealing performance, making it prone to leakage and material spillage. Some automatic drainage devices have complex structures, rely on additional power for driving, have high failure rates and high maintenance costs, and are difficult to achieve efficient and leak-free automatic discharge of leachate. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a composting fermentation device utilizing duck blood protease, which solves the problems mentioned in the background art.

[0007] The solution of the present invention to the above-mentioned technical problems is as follows: This invention provides a composting fermentation device utilizing duck blood protease, comprising: support; The tank body is rotatably mounted on the bracket, and an angle adjustment mechanism is provided between the tank body and the bracket to adjust the tilt angle of the tank body; The top cover is installed on the top of the tank. The tank includes an inner liner, and the inner liner is provided with a drain plate that divides the inner liner into upper and lower parts. The top cover is equipped with a stirring device, which includes a motor and stirring blades that are connected to the motor drive. The stirring blades extend into the inner liner. The top cover is also provided with an air inlet pipe and an air outlet pipe, with the end of the air inlet pipe located below the drain plate; The bottom of the tank is provided with a drain port, and a drain valve is provided at the drain port. The drain valve includes an elastic sealing element for sealing the drain port under normal circumstances. It also includes a pneumatic control mechanism, which includes a pressure valve on the top cover and an adjustment valve on the vent pipe. The adjustment valve has a first state and a second state. In the first state, gas is allowed to be discharged. In the second state, the vent pipe is closed, which increases the air pressure inside the inner liner, thereby pushing the elastic sealing element of the drain valve to open the drain port and realize pneumatic-assisted drainage.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the angle adjustment mechanism includes a worm gear mounted on the support and a worm wheel mounted on the tank's rotating shaft. The worm gear meshes with the worm wheel, and a handwheel is provided at one end of the worm gear. The handwheel drives the worm gear to rotate, thereby causing the tank to rotate around the rotating shaft.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: The transmission structure employs a worm gear and worm wheel meshing mechanism, ensuring smooth transmission and featuring a self-locking function. It can precisely control the tilt angle of the tank, and after adjustment, the tank can stably maintain the target angle, preventing the tank from rotating on its own during fermentation. The handwheel design makes angle adjustment simple and labor-saving, requiring no additional power equipment. The tank posture can be flexibly adjusted according to the needs of different processes such as feeding, fermentation, and discharging. During feeding, it facilitates even distribution of materials; during fermentation, it promotes full contact between materials and duck blood protease and air; and during discharging, it can quickly and thoroughly discharge the fermented materials, effectively improving the operational flexibility and practicality of the device and reducing the intensity of manual operation.

[0011] Furthermore, the tank also includes an insulation sleeve covering the outer side of the inner liner, and the outer side of the insulation sleeve is provided with a first vacuum chamber; the top cover is provided with a second vacuum chamber; the first vacuum chamber and the second vacuum chamber constitute a vacuum insulation layer.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: The vacuum insulation layer can minimize heat conduction and convection between the inside and outside of the tank, effectively isolating the fermentation environment inside the tank from the impact of external temperature changes and maintaining a stable temperature inside the tank. Given the temperature-sensitive nature of duck blood protease, a stable temperature environment can ensure that duck blood protease is always in its optimal enzyme activity state, while providing suitable temperature conditions for microbial fermentation. This avoids problems such as decreased enzyme activity, reduced fermentation efficiency, and uneven material maturation caused by temperature fluctuations, thereby shortening the fermentation cycle, improving the quality of compost products, and reducing insulation energy consumption, achieving energy-saving effects.

[0013] Furthermore, the inner wall of the inner liner is provided with baffles, and the stirring blades cooperate with the baffles to turn the material.

[0014] The beneficial effects of adopting the above-mentioned further solutions are: When the stirring blades rotate, they interact with the baffles, creating a shearing, turning, and dispersing effect on the materials inside the tank. This effectively prevents the materials from clumping together during fermentation, ensuring thorough mixing of the fermentation system containing duck blood protease with the organic materials. This increases the contact area between the duck blood protease and the materials, significantly improving the efficiency of the enzymatic hydrolysis reaction and accelerating the degradation rate of the materials. At the same time, the combined turning action ensures that the materials come into uniform contact with the introduced air, guaranteeing the oxygen supply required for aerobic fermentation, promoting efficient microbial reproduction, and preventing anaerobic fermentation caused by oxygen deficiency in some areas, which can produce off-odors. This further improves the uniformity and effectiveness of fermentation.

[0015] Furthermore, the drain valve includes a drain pipe located at the bottom of the tank body, a first support frame is provided inside the drain pipe, a first sealing ball is installed on the first support frame by a spring, a through hole is provided at the bottom of the inner liner, and the first sealing ball blocks the through hole under the action of the spring; the drain port is the through hole.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: The elastic sealing structure formed by the spring and the first sealing ball is simple in structure and has high sealing reliability. Under normal fermentation conditions, the pre-tightening force of the spring can make the first sealing ball tightly seal the through hole, effectively preventing gas leakage and material leakage from the tank, ensuring the stability of the closed fermentation environment, and preventing miscellaneous bacteria from entering the tank and affecting the enzymatic hydrolysis reaction of duck blood protease and microbial fermentation. At the same time, this structure can work in conjunction with the gas pressure control mechanism to realize the automatic opening and closing of the drain port by relying on the gas pressure change in the tank, eliminating the need for manual operation, simplifying the operation process, avoiding the spread of fermentation odors during manual operation, and improving the environmental friendliness and ease of operation of the device.

[0017] Furthermore, the regulating valve includes a valve body, a second support frame is provided inside the valve body, a guide rod is connected to the second support frame, and a second sealing ball is sleeved on the guide rod; during normal ventilation, when gas flows through the regulating valve, the second sealing ball is located at the lower part of the guide rod, allowing gas to be discharged; when liquid drainage is required, pressure is applied to the inner liner through the air inlet pipe, and when the gas flows through the regulating valve, it blows the second sealing ball upward to block the top of the regulating valve, thereby closing the air outlet pipe, and the pressure inside the inner liner increases, pushing the first sealing ball to open the through hole.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: The regulating valve adopts a purely mechanical structure design, requiring no additional power drive. It can automatically switch its working state according to the gas pressure inside the tank, making it reliable, easy to maintain, and reducing the failure rate and operating costs of the device. During normal fermentation, the regulating valve is in the open position, ensuring the smooth discharge of excess gas and fermentation waste gas inside the tank, maintaining the gas pressure balance inside the tank, and providing a stable environment for fermentation. During liquid drainage, the regulating valve can automatically close the gas outlet pipe, causing the gas pressure inside the tank to rise rapidly, thereby pushing the liquid drainage valve to open and achieve automatic liquid drainage. This realizes the automatic switching between aeration and liquid drainage functions, which is simple and efficient to operate, and there is no leakage during the switching process, avoiding the spread of odors and the invasion of miscellaneous bacteria, thus ensuring the fermentation effect.

[0019] Furthermore, an air distribution pipe is connected to the end of the air intake pipe, and the air distribution pipe is located below the drain plate.

[0020] The beneficial effects of adopting the above-mentioned further solutions are: The air distribution pipe can evenly disperse the air introduced by the air inlet pipe into fine bubbles, so that the air is evenly distributed in the lower liquid collection area of ​​the tank. Then the bubbles rise and pass through the drain plate, making full contact with the material in the upper fermentation zone, which greatly increases the contact area and uniformity between oxygen and material. The sufficient and uniform oxygen supply can meet the needs of microbial fermentation and duck blood protease enzymatic reaction, avoid anaerobic fermentation due to lack of oxygen in some materials, reduce the generation of odor, and promote the efficient reproduction of microorganisms and the smooth progress of enzymatic reaction, further improving fermentation efficiency and composting quality.

[0021] Furthermore, the top cover and the tank body are connected and fixed by a connecting flange, and a sealing ring is installed between the top cover and the tank body. The sealing ring is T-shaped and is limited by a baffle and fits against the inner wall of the inner liner.

[0022] The beneficial effects of adopting the above-mentioned further solutions are: The flange connection ensures a secure and reliable connection between the top cover and the tank body, while also facilitating disassembly for easy cleaning, maintenance, material feeding, and discharging. The T-shaped sealing ring design, combined with the limiting effect of the baffle strip, ensures a tight fit between the sealing ring and the inner wall of the tank, significantly improving sealing performance and effectively preventing the leakage of fermentation gases and the entry of external bacteria and dust. This provides a clean, sealed, and stable environment for the enzymatic hydrolysis reaction of duck blood protease and microbial fermentation. Furthermore, the T-shaped sealing ring is accurately positioned and not easily displaced, maintaining a good sealing effect for a long time and extending the service life of the equipment.

[0023] Furthermore, the tank body is also provided with a first connecting pipe and a second connecting pipe, both of which are connected to the insulation sleeve for introducing heat exchange medium.

[0024] The beneficial effects of adopting the above-mentioned further solutions are: The first and second connecting pipes serve as inlet and outlet channels for the heat exchange medium, allowing for the flexible introduction of heating or cooling media according to the fermentation process. Combined with the vacuum insulation layer, this enables precise temperature control within the tank. When the tank temperature is below the optimal enzyme activity temperature of duck blood protease, a heating medium is introduced to raise the tank temperature. When a large amount of heat is generated during fermentation, causing the tank temperature to become too high, a cooling medium is introduced to lower the temperature, ensuring that the tank temperature is always maintained within a suitable range. This safeguards the activity of duck blood protease and the efficiency of microbial fermentation, prevents abnormal temperatures from affecting the fermentation effect and compost quality, expands the applicability of the device, and adapts to different environmental temperatures and fermentation process requirements.

[0025] Furthermore, a temperature gauge is provided on the tank body, and the temperature gauge is inserted into the inner liner.

[0026] The beneficial effects of adopting the above-mentioned further solutions are: The thermometer can be directly inserted into the inner tank to monitor the actual temperature of the fermentation material in real time and accurately, providing precise data support for temperature control. Operators can intuitively understand the temperature changes inside the tank through the thermometer and adjust the temperature in a timely manner through the heat exchange structure to avoid problems such as decreased duck blood protease activity and reduced fermentation efficiency due to excessively high or low temperatures. At the same time, real-time temperature monitoring allows operators to keep track of the fermentation process, adjust fermentation parameters in a timely manner, ensure a stable and controllable fermentation process, and improve the consistency of compost product quality.

[0027] Therefore, the composting fermentation device utilizing duck blood protease provided by this invention has the following beneficial effects: The motor-driven stirring blades of the stirring device rotate continuously inside the tank. Combined with the baffles on the inner wall of the tank, this ensures thorough agitation, dispersal, and mixing of the added organic materials and duck blood protease. This completely prevents material caking, allowing the duck blood protease to fully contact the fermenting materials, maximizing the enzymatic reaction and accelerating the degradation rate. Simultaneously, the stirring process ensures sufficient contact between the materials and the introduced air, guaranteeing the oxygen supply needed for aerobic fermentation, promoting efficient microbial reproduction, further improving composting efficiency, and shortening the fermentation cycle. This solves the problems of uneven material mixing and insufficient enzymatic hydrolysis in existing devices, which lead to long fermentation cycles and poor composting effects.

[0028] Under normal fermentation conditions, the elastic sealing element of the drain valve can reliably seal the drain port, preventing gas leakage and material leakage from the tank and ensuring the stability of the closed fermentation environment. When it is necessary to drain the leachate, there is no need to manually operate the valve. Simply pressurize the inner tank through the air inlet pipe to automatically switch the regulating valve to the closed state. After the air pressure inside the tank increases, it pushes the elastic sealing element to open the drain port, realizing the pressure-assisted discharge of the leachate. The operation is simple and efficient, and at the same time, it avoids the problems of fermentation odor diffusion and the entry of miscellaneous bacteria into the tank during manual valve opening. It takes into account both the convenience of operation and the cleanliness of the fermentation environment, and solves the technical defects of existing devices that are cumbersome to drain and prone to odor pollution.

[0029] The outer insulation sleeve of the tank and the vacuum cavity on the top cover together form an all-round vacuum insulation layer, which can effectively reduce heat exchange between the inside and outside of the tank and avoid excessive temperature fluctuations during fermentation. At the same time, the heat exchange interface on the tank can flexibly introduce heat exchange medium according to the fermentation process. With the thermometer inserted into the inner liner to monitor the temperature in real time, the fermentation temperature inside the tank can be precisely controlled to maintain the temperature within the suitable range for duck blood protease to exert its optimal enzyme activity and for efficient microbial reproduction. This effectively avoids problems such as decreased enzyme activity and reduced fermentation efficiency caused by excessively high or low temperatures, ensuring the stability and consistency of the composting fermentation process and improving the quality of the fermentation products.

[0030] The top cover is fixed to the tank body via a connecting flange and sealed with a T-shaped sealing ring. The sealing ring is limited by a baffle and fits tightly against the inner wall of the inner liner, providing excellent sealing performance. This effectively prevents gas leakage and the entry of external bacteria, providing a clean, sealed, and stable environment for the enzymatic hydrolysis reaction and microbial fermentation of duck blood protease. The air distribution pipe connected to the end of the air inlet pipe is located below the drain plate, allowing the incoming air to be evenly dispersed and pass upward through the drain plate, making full contact with the fermentation material. This ensures uniform oxygen supply and prevents anaerobic fermentation caused by localized lack of oxygen, which can produce odors. At the same time, excess gas and fermentation waste gas can be smoothly discharged through the air outlet pipe, maintaining the gas pressure balance inside the tank and further improving the stability of the fermentation process and the quality of the fermentation products. Attached Figure Description

[0031] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0032] In the attached diagram: Figure 1 This is a schematic diagram of the right-side appearance of the present invention; Figure 2 This is a schematic diagram of the left-side appearance of the present invention; Figure 3 This is a rear view diagram of the present invention; Figure 4 This is a schematic diagram of the left sectional view of the present invention; Figure 5 This is a schematic diagram of the bottom cross-sectional structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional view of the drain pipe of the present invention.

[0033] The attached diagram lists the components represented by each number as follows: 1. Bracket; 101. Handwheel; 102. Worm gear; 2. Top cover; 201. Pressure valve; 202. Air outlet pipe; 203. Motor; 204. Air inlet pipe; 205. Connecting flange; 206. Air distribution pipe; 207. Stirring blade; 208. Second vacuum chamber; 209. Guide rod; 210. Second sealing ball; 211. Adjusting valve; 212. Second support frame; 3. Tank body; 301. Rotating shaft; 302. First connecting pipe; 303. Thermometer; 304. Worm gear; 305. Second connecting pipe; 306. Insulation sleeve; 307. First vacuum chamber; 308. Drain plate; 309. Inner liner; 310. Baffle strip; 311. Sealing ring; 312. Drain pipe; 313. Spring; 314. First sealing ball; 315. First support frame; 316. Through hole. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 7 As shown, the embodiments provided by the present invention are as follows: Example 1 A composting fermentation device utilizing duck blood protease, comprising: Bracket 1; The tank body 3 is rotatably mounted on the bracket 1, and an angle adjustment mechanism is provided between the tank body 3 and the bracket 1 to adjust the tilt angle of the tank body 3; Top cover 2 is installed on top of tank body 3; The tank body 3 includes an inner liner 309, and the inner liner 309 is provided with a drain plate 308, which divides the inner liner 309 into upper and lower parts. The top cover 2 is equipped with a stirring device, which includes a motor 203 and a stirring blade 207 that is connected to the motor 203 for transmission. The stirring blade 207 extends into the inner liner 309. The top cover 2 is also provided with an air inlet pipe 204 and an air outlet pipe 202, with the end of the air inlet pipe 204 located below the drain plate 308; The bottom of the tank body 3 is provided with a drain port, and a drain valve is provided at the drain port. The drain valve includes an elastic sealing element, which is used to seal the drain port under normal circumstances. It also includes a pneumatic control mechanism, which includes a pressure valve 201 installed on the top cover 2 and an adjustment valve 211 installed on the vent pipe 202. The adjustment valve 211 has a first state and a second state. In the first state, gas is allowed to be discharged. In the second state, the vent pipe 202 is closed, which increases the air pressure inside the inner liner 309, thereby pushing the elastic sealing element of the drain valve to open the drain port and realize pneumatic-assisted draining.

[0036] Example 2 To improve the operational flexibility and practicality of the equipment, reduce the intensity of manual operation, and achieve precise and stable adjustment of the tank tilt angle to adapt to different process requirements, for example, such as Figures 1 to 7 As shown, the present invention also includes: The angle adjustment mechanism includes a worm gear 102 mounted on the support 1 and a worm wheel 304 mounted on the rotating shaft 301 of the tank 3. The worm gear 102 meshes with the worm wheel 304. A handwheel 101 is provided at one end of the worm gear 102. The worm gear 102 is driven to rotate by the handwheel 101, which in turn drives the tank 3 to rotate around the rotating shaft 301. The transmission structure of the worm gear 102 meshing with the worm wheel 304 provides smooth transmission and has a self-locking function. It can accurately control the tilt angle of the tank 3, and after adjustment, the tank 3 can be stably maintained at the target angle, preventing the tank 3 from rotating on its own during fermentation. The handwheel 101 makes the angle adjustment operation simple and labor-saving, without the need for additional power equipment. The posture of the tank 3 can be flexibly adjusted according to the needs of different processes such as feeding, fermentation, and discharging. It facilitates the even distribution of materials during feeding, promotes full contact between materials and duck blood protease and air during fermentation, and allows for the rapid and thorough discharge of fermented materials during discharging. This effectively improves the operational flexibility and practicality of the device and reduces the intensity of manual operation.

[0037] Example 3 To maintain a stable fermentation temperature within the tank, ensure optimal duck blood protease activity, improve fermentation efficiency and compost quality, and simultaneously prevent material caking and promote uniform fermentation, for example, such as Figures 1 to 7 As shown, the present invention also includes: The tank body 3 also includes an insulation sleeve 306 covering the outside of the inner liner 309, with a first vacuum chamber 307 on the outside of the insulation sleeve 306; a second vacuum chamber 208 is provided on the top cover 2; the first vacuum chamber 307 and the second vacuum chamber 208 constitute a vacuum insulation layer, which can minimize heat conduction and heat convection between the inside and outside of the tank body 3, effectively isolate the influence of external temperature changes on the fermentation environment inside the tank, and maintain a stable temperature inside the tank; considering the temperature-sensitive characteristics of duck blood protease, a stable temperature environment can ensure that duck blood protease is always in the optimal enzyme activity state, while providing suitable temperature conditions for microbial fermentation, avoiding problems such as decreased enzyme activity, reduced fermentation efficiency, and uneven material maturation caused by temperature fluctuations, thereby shortening the fermentation cycle, improving the quality of compost products, and reducing insulation energy consumption to achieve energy saving effect.

[0038] The inner wall of the inner liner 309 is equipped with baffles 310. The stirring blades 207 cooperate with the baffles 310 to turn the material. When the stirring blades 207 rotate, they interact with the baffles 310, which can create a shearing, turning and dispersing effect on the material in the tank. This effectively prevents the material from caking and clumping during fermentation, and allows the fermentation system containing duck blood protease to be fully mixed with the organic material. This increases the contact area between the duck blood protease and the material, significantly improves the efficiency of the enzymatic reaction, and accelerates the degradation rate of the material. At the same time, the combined turning action of the two can make the material come into uniform contact with the introduced air, ensuring the oxygen supply required for aerobic fermentation, promoting the efficient reproduction of microorganisms, and preventing anaerobic fermentation caused by local lack of oxygen, which produces off-odors. This further improves the uniformity and effect of fermentation.

[0039] Example 4 To achieve automated, leak-free discharge of fermentation leachate, simplify operating procedures, improve the environmental friendliness and reliability of the equipment, and ensure a stable closed fermentation environment, for example, such as Figures 1 to 7 As shown, the present invention also includes: The drain valve includes a drain pipe 312 located at the bottom of the tank body 3. A first support frame 315 is installed inside the drain pipe 312. A first sealing ball 314 is mounted on the first support frame 315 via a spring 313. A through hole 316 is located at the bottom of the inner liner 309. The first sealing ball 314 seals the through hole 316 under the action of the spring 313. The drain outlet is the through hole 316. The elastic sealing structure formed by the spring 313 and the first sealing ball 314 is simple in structure and has high sealing reliability. Under normal fermentation conditions, the spring 313... The pre-tightening force ensures that the first sealing ball 314 tightly seals the through hole 316, effectively preventing gas leakage and material leakage from the tank, ensuring the stability of the closed fermentation environment, and preventing miscellaneous bacteria from entering the tank and affecting the enzymatic hydrolysis reaction of duck blood protease and microbial fermentation. At the same time, this structure can work in conjunction with the gas pressure control mechanism, and the drain port can be automatically opened and closed by relying on the change of gas pressure inside the tank, eliminating the need for manual operation, simplifying the operation process, avoiding the spread of fermentation odors during manual operation, and improving the environmental friendliness and ease of operation of the device.

[0040] Adjusting valve 211 includes a valve body, within which a second support frame 212 is provided. A guide rod 209 is connected to the second support frame 212, and a second sealing ball 210 is sleeved on the guide rod 209. During normal ventilation, when gas flows through adjusting valve 211, the second sealing ball 210 is located below the guide rod 209, allowing gas to escape. When drainage is required, pressure is applied to the inner liner 309 through the air inlet pipe 204. When gas flows through adjusting valve 211, it blows the second sealing ball 210 upwards, sealing the top of adjusting valve 211, thus closing the air outlet pipe 202. The increased pressure inside the inner liner 309 pushes the first sealing ball 314 to open the through hole 316. Adjusting valve 211 uses pure... The mechanical structure design requires no additional power and can automatically switch working states according to the gas pressure inside the tank. The structure is reliable and easy to maintain, reducing the failure rate and operating costs of the device. During normal fermentation, the regulating valve 211 is in the open state, which can ensure the smooth discharge of excess gas and fermentation waste gas inside the tank, maintain the gas pressure balance inside the tank, and provide a stable environment for fermentation. During drainage, the regulating valve 211 can automatically close the gas outlet pipe 202, causing the gas pressure inside the tank to rise rapidly, thereby pushing the drainage valve to open and realize automatic drainage. This achieves automatic switching between aeration and drainage functions, which is simple and efficient to operate, and there is no leakage during the switching process, avoiding the spread of odors and the invasion of miscellaneous bacteria, thus ensuring the fermentation effect.

[0041] Example 5 To ensure uniform distribution of the introduced air, increase the contact area and uniformity between oxygen and the fermentation material, and meet the oxygen requirements of enzymatic reactions and microbial fermentation, for example, such as... Figures 1 to 7 As shown, the present invention also includes: The end of the air inlet pipe 204 is connected to an air distribution pipe 206, which is located below the drain plate 308. The air distribution pipe 206 can evenly disperse the air introduced by the air inlet pipe 204 into fine bubbles, so that the air is evenly distributed in the lower liquid collection area of ​​the tank. Then the bubbles rise and pass through the drain plate 308, making full contact with the material in the upper fermentation zone, which greatly increases the contact area and uniformity between oxygen and material. The sufficient and uniform oxygen supply can meet the needs of microbial fermentation and duck blood protease enzymatic reaction, avoid anaerobic fermentation of local materials due to lack of oxygen, reduce the generation of odor, and promote the efficient reproduction of microorganisms and the smooth progress of enzymatic reaction, further improving fermentation efficiency and composting quality.

[0042] Example 6 To improve the sealing performance, convenience, and temperature control accuracy of the device, extend its service life, ensure a clean and stable fermentation environment, and expand its applicability, for example, such as Figures 1 to 7 As shown, the present invention also includes: The top cover 2 and the tank body 3 are connected and fixed by a connecting flange 205. A sealing ring 311 is installed between the top cover 2 and the tank body 3. The sealing ring 311 is T-shaped and is limited by a baffle 310 and fits against the inner wall of the inner liner 309. The flange connection makes the connection between the top cover 2 and the tank body 3 firm and reliable, and also facilitates disassembly, making it convenient for cleaning and maintenance of the device, as well as feeding and discharging materials. The design of the T-shaped sealing ring 311, together with the limiting effect of the baffle 310, allows the sealing ring 311 to fit tightly against the inner wall of the inner liner 309, greatly improving the sealing performance and effectively preventing the leakage of fermentation gas and the entry of external bacteria and dust into the tank. This provides a clean, sealed, and stable environment for the enzymatic hydrolysis reaction of duck blood protease and microbial fermentation. At the same time, the T-shaped sealing ring 311 is accurately positioned and not easily displaced, maintaining a good sealing effect for a long time and extending the service life of the device.

[0043] The tank body 3 is also equipped with a first connecting pipe 302 and a second connecting pipe 305. Both the first connecting pipe 302 and the second connecting pipe 305 are connected to the insulation jacket 306 for introducing heat exchange medium. The first connecting pipe 302 and the second connecting pipe 305 serve as the inlet and outlet channels for the heat exchange medium, and heating or cooling media can be flexibly introduced according to the fermentation process. In conjunction with the vacuum insulation layer, the temperature inside the tank can be precisely controlled. When the temperature inside the tank is lower than the optimal enzyme activity temperature of duck blood protease, heating media are introduced to raise the temperature inside the tank. When a large amount of heat is generated during fermentation, causing the temperature inside the tank to be too high, cooling media are introduced to lower the temperature, ensuring that the temperature inside the tank is always maintained within a suitable range, protecting the activity of duck blood protease and the efficiency of microbial fermentation, avoiding abnormal temperature from affecting the fermentation effect and compost quality, expanding the applicability of the device, and adapting to different ambient temperatures and fermentation process requirements.

[0044] The tank body 3 is equipped with a thermometer 303, which is inserted into the inner liner 309. The thermometer 303 can be directly inserted into the inner liner 309 to monitor the actual temperature of the fermentation material inside the tank in real time and accurately, providing precise data support for temperature control. Operators can intuitively understand the temperature changes inside the tank through the thermometer 303 and adjust the temperature in a timely manner through the heat exchange structure to avoid problems such as decreased duck blood protease activity and reduced fermentation efficiency due to excessively high or low temperatures. At the same time, real-time temperature monitoring allows operators to keep track of the fermentation process, adjust fermentation parameters in a timely manner, ensure a stable and controllable fermentation process, and improve the consistency of compost product quality.

[0045] Working principle: During operation, the fermentation inoculum containing duck blood protease is mixed with organic materials and then added to the inner cavity of tank 3. The materials fall above the drain plate 308, which divides the inner cavity into an upper fermentation zone and a lower collection zone. The leachate produced during fermentation can fall through the drain plate 308 into the lower collection zone. The top cover 2 and tank 3 are connected by a flange seal, and the inner cavity is sealed with a sealing ring 311 to ensure that gas does not leak out and external bacteria cannot easily enter during fermentation, providing a closed and stable environment for the enzymatic hydrolysis reaction of duck blood protease and microbial fermentation.

[0046] During fermentation, the stirring device operates continuously. The motor 203 drives the stirring blades 207 to rotate inside the tank 3. This, combined with the baffles 310 on the inner wall of the inner liner 309, agitates, disperses, and mixes the material. This prevents material caking and ensures sufficient contact between the duck blood protease and the material, improving enzymatic hydrolysis efficiency. Simultaneously, it ensures uniform contact between the fermentation material and the introduced air, guaranteeing continuous aerobic fermentation. The air inlet pipe 204 continuously introduces air below the drain plate 308. After being evenly dispersed by the air distribution pipe 206, the air rises through the drain plate 308 and enters the fermentation material layer, providing sufficient oxygen for microbial metabolism and enzymatic reactions. Excess gas and waste gas generated during fermentation are discharged through the air outlet pipe 202, maintaining normal ventilation and pressure balance within the tank 3.

[0047] The outer side of the tank body 3 is equipped with an insulation sleeve 306 and a vacuum chamber, and the top cover 2 is also equipped with a vacuum chamber, which together form an all-round vacuum insulation layer to reduce heat exchange between the inside and outside of the tank body 3 and maintain the stable temperature required for fermentation. The tank body 3 is equipped with a heat exchange interface, which can introduce heat exchange medium according to the fermentation process to heat or cool the material inside the tank. With the help of the temperature gauge 303 to monitor the temperature of the inner liner 309 in real time, the fermentation temperature can be precisely controlled, providing suitable temperature conditions for duck blood protease to exert its best enzyme activity and for the efficient reproduction of microorganisms, ensuring stable and efficient fermentation.

[0048] During fermentation, the leachate collected at the bottom of tank 3. Under normal fermentation conditions, the drain valve remains closed due to the elastic sealing element, preventing gas and material leakage. When it is necessary to drain the leachate, pressure is applied to the inner cavity through the air inlet pipe 204. The airflow causes the adjusting valve 211 on the air outlet pipe 202 to automatically switch to the closed state. The air pressure inside tank 3 gradually increases, and the internal pressure overcomes the force of the elastic sealing element of the drain valve, opening the drain port. The collected leachate is then discharged quickly and smoothly with the assistance of air pressure, completing the automatic draining without the need for manual valve opening. This simple operation also prevents the spread of odors.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composting fermentation device utilizing duck blood protease, characterized in that, include: Support (1); The tank (3) is rotatably mounted on the bracket (1), and an angle adjustment mechanism is provided between the tank (3) and the bracket (1) to adjust the tilt angle of the tank (3); The top cover (2) is installed on the top of the tank body (3); The tank (3) includes an inner liner (309), and the inner liner (309) is provided with a drain plate (308) inside, which divides the inner liner (309) into upper and lower parts; The top cover (2) is provided with a stirring device, which includes a motor (203) and a stirring blade (207) that is connected to the motor (203) for transmission. The stirring blade (207) extends into the inner liner (309). The top cover (2) is also provided with an air inlet pipe (204) and an air outlet pipe (202), the end of which is located below the drain plate (308); The bottom of the tank (3) is provided with a drain port, and a drain valve is provided at the drain port. The drain valve includes an elastic sealing element for sealing the drain port under normal circumstances. It also includes a pneumatic control mechanism, which includes a pressure valve (201) on the top cover (2) and an adjustment valve (211) on the air outlet pipe (202). The adjustment valve (211) has a first state and a second state. In the first state, gas is allowed to be discharged, and in the second state, the air outlet pipe (202) is closed, so that the air pressure in the inner liner (309) increases, thereby pushing the elastic sealing element of the drain valve to open the drain port and realize pneumatic-assisted draining.

2. The composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The angle adjustment mechanism includes a worm (102) mounted on the bracket (1) and a worm wheel (304) mounted on the rotating shaft (301) of the tank (3). The worm (102) meshes with the worm wheel (304). One end of the worm (102) is provided with a handwheel (101). The worm (102) is driven to rotate by the handwheel (101), which in turn drives the tank (3) to rotate around the rotating shaft (301).

3. The composting fermentation device utilizing duck blood protease according to claim 2, characterized in that: The tank (3) also includes an insulation sleeve (306) covering the outside of the inner liner (309), and the outside of the insulation sleeve (306) is provided with a first vacuum chamber (307); the top cover (2) is provided with a second vacuum chamber (208); the first vacuum chamber (307) and the second vacuum chamber (208) constitute a vacuum insulation layer.

4. The composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The inner wall of the inner liner (309) is provided with a baffle (310), and the stirring blade (207) cooperates with the baffle (310) to turn the material.

5. The composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The drain valve includes a drain pipe (312) located at the bottom of the tank (3). A first support frame (315) is provided inside the drain pipe (312). A first sealing ball (314) is installed on the first support frame (315) by means of a spring (313). A through hole (316) is provided at the bottom of the inner liner (309). The first sealing ball (314) blocks the through hole (316) under the action of the spring (313). The drain port is the through hole (316).

6. The composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The regulating valve (211) includes a valve body, a second support frame (212) is provided inside the valve body, a guide rod (209) is connected to the second support frame (212), and a second sealing ball (210) is sleeved on the guide rod (209). When the gas is normally ventilated, the second sealing ball (210) is located at the lower part of the guide rod (209) when the gas flows through the regulating valve (211), allowing the gas to be discharged. When liquid needs to be drained, the gas is pressurized into the inner liner (309) through the air inlet pipe (204). When the gas flows through the regulating valve (211), it blows the second sealing ball (210) upward to block the top of the regulating valve (211), so that the air outlet pipe (202) is closed, and the pressure in the inner liner (309) increases, pushing the first sealing ball (314) to open the through hole (316).

7. The composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The air intake pipe (204) is connected to an air distribution pipe (206) at its end, and the air distribution pipe (206) is located below the drain plate (308).

8. The composting fermentation device using duck blood protease according to claim 1, characterized in that: The top cover (2) and the tank body (3) are connected and fixed by a connecting flange (205), and a sealing ring (311) is installed between the top cover (2) and the tank body (3). The sealing ring (311) is T-shaped and is limited by a baffle (310) and fits against the inner wall of the inner liner (309).

9. A composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The tank (3) is also provided with a first connecting pipe (302) and a second connecting pipe (305), both of which are connected to the insulation sleeve (306) for introducing heat exchange medium.

10. A composting fermentation device utilizing duck blood protease according to claim 1, characterized in that: The tank (3) is equipped with a thermometer (303), which is inserted into the inner liner (309).

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