Bio-fertilizer fermentation tank

Abstract

The utility model relates to a kind of biofertilizer fermentation tanks. Including installation rack, fermentation tank inner shell is movably connected on it, temperature control structure is sleeved on the outer wall of fermentation tank inner shell;Several air vents and pressure gauge are provided at the top of fermentation tank inner shell;Discharge valve is provided at the bottom of fermentation tank inner shell;It further includes transverse stirring subassembly;Transverse stirring subassembly includes transverse stirring mechanism and stirring driving part;It further includes tank body driving device;Multiple groups of down turnover material assembly are provided at the bottom of fermentation tank inner shell;Down turnover material assembly includes sealing sleeve structure, stirring blade shaft is rotatably connected in sealing sleeve structure, several stirring blades are installed on stirring blade shaft, and it further includes rotating electrical machine.The utility model uses bidirectional drive, so that fermentation tank body swings, cooperate stirring piece to stir the material inside tank body, improve the mixing efficiency of material, make biofertilizer mix more uniform, to help improve fermentation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of fermentation equipment technology, and in particular relates to a bio-fertilizer fermentation tank. Background Technology

[0002] Bio-organic fertilizer is an organic fertilizer made from organic solid waste (including organic garbage, straw, human, animal and poultry manure, oilseed cake, agricultural by-products and solid waste generated from food processing) through microbial fermentation, deodorization and complete decomposition.

[0003] The fermentation process described above refers to the process of using microorganisms to ferment carbohydrates in order to produce various industrial solvents and chemical raw materials. It is an important part of bioengineering. Fermentation is usually carried out in a fermentation device. Traditional fermentation devices have a relatively simple structure, mainly including a fermentation tank, a stirring element inside the fermentation tank, and a drive unit for rotating the stirring element.

[0004] In traditional fermentation equipment, the fertilizer is stirred inside the fermentation tank by a stirring element. However, due to the low fluidity of organic fertilizer, the stirring element makes it difficult to stir the organic fertilizer evenly, resulting in incomplete mixing and reduced fermentation quality. Therefore, there is an urgent need to design a bio-fertilizer fermentation tank to solve the above problems. Summary of the Invention

[0005] This invention provides a bio-fertilizer fermentation tank with a reasonable structural design to solve the technical problems existing in the prior art. This invention employs a bidirectional drive, causing the fermentation tank to oscillate, thereby driving the flow of organic fertilizer inside. Combined with a stirring component, this stirs the materials inside the tank, improving the mixing efficiency and making the bio-fertilizer more uniformly mixed, thus contributing to improved fermentation efficiency.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A bio-fertilizer fermenter includes a mounting frame, on which a fermenter inner shell is movably connected; a temperature control structure is sleeved on the outer wall of the fermenter inner shell; a feed inlet, several vents, and a pressure gauge are provided at the top of the fermenter inner shell; a discharge outlet is provided at the bottom of the fermenter inner shell, and a discharge valve is provided at the discharge outlet; two coaxially arranged tank rotating sleeves are fixedly connected to the outer wall of the fermenter inner shell; and a transverse stirring assembly is also included, which is transversely inserted and rotatably connected to the fermenter inner shell; the transverse stirring assembly includes components connected to the two tanks. The system includes a rotatable transverse stirring mechanism, the end of which is rotatably connected to a mounting frame; a stirring drive unit mounted on the mounting frame for driving the transverse stirring mechanism to rotate; a tank drive device mounted on the mounting frame for driving the inner shell of the fermenter to rotate relative to the transverse stirring assembly; multiple sets of material-discharging assemblies are provided at the bottom of the inner shell of the fermenter; each material-discharging assembly includes a sealing sleeve structure mounted on the inner shell of the fermenter, a stirring blade shaft rotatably connected to the sealing sleeve structure passing through it, and several stirring blades mounted on the stirring blade shaft; and a rotary motor for driving the stirring blade shaft to rotate.

[0007] The advantages and positive effects of this invention are as follows: This invention provides a bio-fertilizer fermentation tank. The strong shearing effect is generated by the counter-rotation of the tank body and the transverse stirring assembly. Multiple independent bottom-feeding components specifically address the material sedimentation problem, and the temperature control structure achieves precise thermal management. Compared to conventional equipment, this composite motion mode subjectes the material to multi-directional forces, significantly improving mixing uniformity and shortening the fermentation cycle. This invention effectively overcomes the problem of dead zones in mixing caused by the poor flowability of organic fertilizers. The relative motion between the tank body and the transverse stirring assembly forms a three-dimensional mixing flow field, the bottom-feeding components continuously disrupt the material sediment layer, and the temperature control structure maintains optimal reaction conditions. This synergistic effect ensures sufficient contact between microorganisms and materials, improves fermentation efficiency, and ultimately yields stable-quality bio-organic fertilizer.

[0008] Preferably, an upper stirring component is provided at the top of the inner shell of the fermenter, which is in close fit with the horizontal stirring component, and the structure of the upper stirring component is the same as that of the lower material turning component.

[0009] Preferably, the sealing sleeve structure includes a flange-connected support sleeve and an outer sealing sleeve, the outer sealing sleeve being fixedly connected to the inner shell of the fermenter, and a rotary motor mounted on the support sleeve; an inner rotating support sleeve is fixedly connected to the support sleeve and the outer sealing sleeve at the joint, and is sealed to both; the lower part of the stirring blade shaft passes through the inner rotating support sleeve and is rotatably connected to it through a rolling bearing; a sealing cover plate and a sealing end cover connected to the inner rotating support sleeve are provided at the port of the outer sealing sleeve, the stirring blade shaft passes through the sealing end cover and is clearance-fitted with it, and a sealing ring is provided between the two; it also includes an end cover cover fixedly connected to the stirring blade shaft and fitted over the sealing end cover, the end cover cover being clearance-fitted with the sealing end cover.

[0010] Preferably, a plurality of stirring blades are arranged in pairs, with the two stirring blades in each pair arranged in a cross shape; a spacer sleeve fixedly connected to the stirring blade shaft is provided between two adjacent pairs of stirring blades; a washer is provided on the top of the stirring blade shaft and a cap-type nut is screwed on.

[0011] Preferably, the transverse stirring mechanism includes a stirring horizontal shaft that passes through the inner shell of the fermenter and is rotatably connected to two tank rotating sleeves via rolling bearings. The stirring horizontal shaft is rotatably connected to the mounting frame via a pedestal bearing. A sealing ring, an inner pressure cap, and a locking nut are provided between the stirring horizontal shaft and each tank rotating sleeve. The mechanism also includes a number of blade mounting rods that are fixed to the stirring horizontal shaft and are evenly distributed along its axial direction. The number of blade mounting rods are evenly distributed in the circumferential direction of the stirring horizontal shaft. An inclined stirring blade is fixed to the outer end of each blade mounting rod.

[0012] Preferably, the tank drive device includes a tilting motor mounted on a mounting frame, a tilting drive sprocket keyed to the output end of the tilting motor, and a tilting driven sprocket keyed to the corresponding tank rotating sleeve. A chain is driven between the tilting drive sprocket and the tilting driven sprocket.

[0013] Preferably, the temperature control structure includes a fermenter outer shell fixed to the outer wall of the fermenter inner shell, an annular cavity between the fermenter inner shell and the fermenter outer shell, a medium spiral tube coiled around the outer wall of the fermenter inner shell within the annular cavity, a medium inlet at the upper part and a medium outlet at the lower part of the medium spiral tube, and control valves at both the medium inlet and the medium outlet; a liquid inlet pipe connected to the upper part of the annular cavity and a liquid outlet pipe connected to the lower part, and control valves on both the liquid inlet and the liquid outlet pipe; it also includes an insulation outer shell fixed to the fermenter inner shell and covering the outside of the fermenter outer shell, an insulation cavity between the fermenter outer shell and the insulation outer shell, and insulation material filled in the insulation cavity; and a temperature measuring element installed on the fermenter inner shell for monitoring the temperature of the inner cavity of the fermenter inner shell. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the front sectional view of the present invention; Figure 2 This is a partial cross-sectional view of the material-turning component in this utility model; Figure 3 This is a three-dimensional structural diagram of the transverse stirring component in this utility model.

[0015] In the diagram: 1. Discharge valve; 2. Lower tilting assembly; 2-1. Rotary motor; 2-2. Support sleeve; 2-3. Inner rotating support sleeve; 2-4. Outer sealing sleeve; 2-5. Sealing end cover; 2-6. Stirring blade shaft; 2-7. Stirring blade; 2-8. Spacer sleeve; 2-9. End cover cover; 2-10. Sealing cover plate; 3. Mounting frame; 4. Tilting motor; 5. Tilting drive sprocket; 6. Tilting driven sprocket; 7. Horizontal stirring assembly; 7-1. Stirring horizontal shaft; 7-2. Blade mounting rod; 7-3. Stirring blade; 7-4. Stirring drive component; 8. Feed inlet; 9. Upper stirring assembly; 10. Vent; 11. Tank rotating sleeve; 12. Fermentation tank inner shell; 13. Fermentation tank outer shell; 14. Medium spiral pipe; 15. Insulation shell. Detailed Implementation

[0016] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail: Please see Figure 1 The bio-fertilizer fermenter of this utility model includes a mounting frame 3, on which an inner shell 12 of the fermenter is movably connected. A temperature control structure is fitted on the outer wall of the inner shell 12. An inlet 8, several vents 10, and a pressure gauge are provided at the top of the inner shell 12. An outlet is provided at the bottom of the inner shell 12, and a discharge valve 1 is provided at the outlet. Two coaxially arranged tank rotating sleeves 11 are fixed to the outer wall of the inner shell 12. The fermenter also includes a transversely inserted structure within the inner shell 12. A transverse stirring assembly 7 is rotatably connected to it; the transverse stirring assembly 7 includes a transverse stirring mechanism rotatably connected to two tank rotating sleeves 11, the ends of which are rotatably connected to the mounting frame 3; it also includes a stirring drive 7-4 mounted on the mounting frame 3 for driving the transverse stirring mechanism to rotate; it also includes a tank driving device mounted on the mounting frame 3 for driving the fermenter inner shell 12 to rotate relative to the transverse stirring assembly 7; multiple sets of bottom-turning material assemblies 2 are provided at the bottom of the fermenter inner shell 12; see further details. Figure 2 The material-turning assembly 2 includes a sealing sleeve structure installed on the inner shell 12 of the fermenter, a stirring blade shaft 2-6 rotatably connected to the sealing sleeve structure, and a plurality of stirring blades 2-7 installed on the stirring blade shaft 2-6; it also includes a rotary motor 2-1 for driving the stirring blade shaft 2-6 to rotate.

[0017] In the above scheme, the mounting frame 3 provides overall support, and the movably connected fermenter inner shell 12 and transverse stirring assembly 7 form a bidirectional stirring structure that can rotate relative to each other. A temperature control structure, through an outer wall sleeve, enables precise control of the fermentation temperature. The feed inlet 8, vent 10, and pressure gauge meet the requirements for material input, gas exchange, and pressure monitoring. The bottom discharge valve 1 controls the discharge efficiency. The rotating connection design between the tank body rotating sleeve 11 and the transverse stirring mechanism allows the stirring drive 7-4 to drive the transverse stirring mechanism to rotate, while the tank body drive device drives the fermenter inner shell 12 to rotate in the opposite direction, forming bidirectional dynamic stirring and enhancing the material shear force. Multiple sets of bottom-turning material assemblies 2 drive the stirring blade shaft 2-6 to rotate the stirring blade 2-7 via a rotary motor 2-1, forcibly turning over the deposited material. A sealing sleeve structure prevents material leakage. This scheme solves the problem of uneven mixing of high-viscosity materials through the reverse rotation of the tank body and stirring assembly, and the synergistic effect of transverse stirring and bottom-turning material assemblies, thereby improving fermentation efficiency and quality.

[0018] See further Figure 1 An upper stirring component 9 is provided at the top of the inner shell 12 of the fermenter, which is in close fit with the horizontal stirring component 7. The structure of the upper stirring component 9 is the same as that of the lower material turning component 2.

[0019] By adding an upper stirring component 9 at the top of the fermenter, which is fitted with the horizontal stirring component 7 with a gap, a dual stirring structure at the top and bottom is formed. The upper stirring component 9 and the lower turning component 2 adopt the same structure, which not only ensures the active turning of materials in the top area and avoids uneven fermentation caused by material accumulation, but also ensures that the horizontal stirring component 7 and the upper stirring component 9 do not interfere with each other during operation through the gap fit design, achieving synergistic stirring. This design simplifies the manufacturing and maintenance process through structural consistency, and at the same time, it uses the top stirring to supplement the coverage blind spots of the horizontal stirring, enhancing the overall mixing effect of materials in the tank. Especially for organic fertilizers with poor flowability, it can significantly improve the stirring coverage and mixing uniformity.

[0020] The above settings solve the problem of uneven mixing caused by insufficient stirring of materials in the top area of ​​traditional fermenters, thereby improving the overall fermentation quality.

[0021] See further Figure 2The aforementioned sealing sleeve structure includes a flange-connected support sleeve 2-2 and an outer sealing sleeve 2-4. The outer sealing sleeve 2-4 is fixedly connected to the inner shell 12 of the fermenter. A rotary motor 2-1 is mounted on the support sleeve 2-2. An inner rotating support sleeve 2-3 is fixedly connected to the support sleeve 2-2 and the outer sealing sleeve 2-4 and is sealed to both. The lower part of the stirring blade shaft 2-6 passes through the inner rotating support sleeve 2-3 and is rotatably connected to it via a rolling bearing. A sealing cover plate 2-10 and a sealing end cover 2-5 connected to the inner rotating support sleeve 2-3 are provided at the port of the outer sealing sleeve 2-4. The stirring blade shaft 2-6 passes through the sealing end cover 2-5 and is clearance-fitted with it. A sealing ring is provided between the two. The structure also includes an end cover cover 2-9 fixedly connected to the stirring blade shaft 2-6 and fitted over the sealing end cover 2-5. The end cover cover 2-9 is clearance-fitted with the sealing end cover 2-5. In addition, a sealing ring and a stop ring are provided between the inner rotating support sleeve 2-3 and the stirring blade shaft 2-6.

[0022] Compared with existing technologies, traditional fermenter agitator shaft seals typically employ single packing seals or mechanical seals, which suffer from easy wear and require frequent maintenance. This invention achieves reliable sealing of dynamically rotating components through a multi-layer sealing structure. The flange-connected support sleeve 2-2 and outer sealing sleeve 2-4 form a rigid mounting base, ensuring a stable connection between the rotary motor 2-1 and the fermenter. The inner rotating support sleeve 2-3 serves as a transition seal, eliminating assembly gaps between the support sleeve 2-2 and outer sealing sleeve 2-4 through a double-seal connection. The cooperation between the rolling bearing and the inner rotating support sleeve 2-3 ensures the rotational freedom of the agitator shaft 2-6 and forms the first mechanical seal barrier. The sealing end cap 2-5, with a clearance fit to the agitator shaft 2-6 and supplemented by a sealing ring, constitutes the second flexible sealing defense. The clearance fit between the end cap outer cover 2-9 and the sealing end cap 2-5 forms a labyrinth seal structure, preventing external contaminants from intruding through airflow barrier effects. The axially stacked arrangement of each sealing component forms a progressive sealing system, maintaining the internal airtightness of the fermenter under dynamic rotation conditions.

[0023] The above settings solve the problem of material leakage and external contamination caused by insufficient sealing at the connection between the stirring blade shaft 2-6 and the inner shell 12 of the fermenter.

[0024] See further Figure 2 The aforementioned stirring blades 2-7 are arranged in pairs, with the two blades in each pair arranged in a cross shape. This cross shape means that the two blades of each pair are arranged perpendicularly to each other on the stirring shaft 2-6, which can be achieved by welding or bolting to form a cross-cutting trajectory. A spacer sleeve 2-8, fixed to the stirring shaft 2-6, is provided between adjacent pairs of stirring blades 2-7. A washer is provided on the top of the stirring shaft 2-6 and a cap nut is screwed onto it.

[0025] In the above scheme, by arranging the mixing blades 2-7 in pairs in a cross shape to form alternating cutting trajectories, the bidirectional mixing effect of materials in both vertical and horizontal directions is enhanced, overcoming the vortex dead angle generated by traditional single-layer mixing blades 2-7. The rigid connection design of the spacer sleeve 2-8 effectively controls the axial spacing of adjacent mixing blade groups 2-7, preventing local overheating caused by material accumulation. At the same time, the supporting effect of the spacer sleeve 2-8 improves the overall torsional strength of the cutter shaft. A composite locking structure of washer and cap nut is adopted at the top of the cutter shaft. The elastic deformation of the washer compensates for the thread clearance, and the closed end face of the cap nut forms a double anti-loosening mechanism, ensuring that the end of the cutter shaft will not move axially under high-speed rotation conditions, significantly improving transmission stability.

[0026] The above settings solve the problem of incomplete material mixing caused by the unreasonable layout of the mixing blades 2-7, as well as the equipment reliability problem caused by the unstable top structure of the mixing blades 2-6.

[0027] like Figure 3 As shown, the transverse stirring mechanism includes a stirring shaft 7-1 that passes through the inner shell 12 of the fermenter and is rotatably connected to two tank rotating sleeves 11 via rolling bearings. The stirring shaft 7-1 is rotatably connected to the mounting frame 3 via a seat bearing. A sealing ring, an inner pressure cover, and a locking nut are provided between the stirring shaft 7-1 and each tank rotating sleeve 11. The mechanism also includes a number of blade mounting rods 7-2 that are fixed to the stirring shaft 7-1 and are evenly distributed along its axial direction. The blade mounting rods 7-2 are evenly distributed in the circumferential direction of the stirring shaft 7-1. An inclined stirring blade 7-3 is fixed to the outer end of each blade mounting rod 7-2.

[0028] The stirring shaft 7-1, which runs through the tank, is connected to the double-tank rotating sleeve 11 by rolling bearings. Combined with the stable support of the pedestal bearings and frame, a multi-point rigid support structure is formed, ensuring the stability of the stirring mechanism during high-speed rotation. A triple-sealing protection system, consisting of a sealing ring, inner pressure cap, and locking nut, is installed between the stirring shaft 7-1 and the tank rotating sleeve 11, preventing both leakage of fermentation materials and intrusion of external impurities. The axially evenly distributed blade mounting rods 7-2 are arranged at equal angles in the circumferential direction. Combined with the inclined stirring blades 7-3, this generates a complex flow field of alternating upward and downward pressure during rotation, creating a dual effect of stratified shearing and axial convection on high-viscosity organic fertilizer. The angled design of the inclined stirring blades 7-3 allows for radial diffusion and axial displacement of the material, effectively eliminating sedimentation at the bottom of the tank. The evenly distributed mounting rods ensure comprehensive stirring coverage. These features solve the problem of traditional fermentation tank stirring components failing to achieve uniform mixing of organic fertilizer, leading to a decline in fermentation quality.

[0029] Furthermore, the blade mounting rod 7-2 includes an integrally formed mounting section and a stirring section. The mounting section has a square cross-section and several square holes are provided on the stirring horizontal shaft 7-1. The mounting section passes through the corresponding square holes and is connected to the stirring horizontal shaft 7-1 by nuts.

[0030] By designing the blade mounting rod 7-2 as an integral part of the mounting section and the mixing section, the overall structure is strengthened. The mounting section adopts a square cross-section that mates with the square hole on the mixing horizontal shaft 7-1. Utilizing the torsional resistance of the square structure, the blade mounting rod 7-2 can be effectively prevented from circumferentially rotating or axially sliding during mixing. The mechanical connection method using a nut lock ensures reliable fixation between the blade mounting rod 7-2 and the mixing horizontal shaft 7-1, while also facilitating disassembly and maintenance. This structural design fundamentally solves the defects of traditional welding or keyed connections, which are prone to stress concentration and loosening of connecting parts. It ensures that the mixing blade 7-3 maintains a stable spatial posture during high-speed rotation, thereby improving the stability and reliability of the mixing mechanism. It also solves the problem of unstable connection between the blade mounting rod 7-2 and the mixing horizontal shaft 7-1, which could lead to the mixing blade 7-3 shifting or falling off, thus affecting the mixing effect.

[0031] like Figure 1 As shown, the aforementioned tank drive device includes a tilting motor 4 mounted on the mounting frame 3, a tilting drive sprocket 5 keyed to the output end of the tilting motor 4, and a tilting driven sprocket 6 keyed to the corresponding tank rotating sleeve 11. A chain drives between the tilting drive sprocket 5 and the tilting driven sprocket 6. A protective cover is mounted on the mounting frame 3, covering the tilting drive sprocket 5 and the tilting driven sprocket 6. By setting the protective cover on the mounting frame 3, the tilting drive sprocket 5 and the tilting driven sprocket 6 are completely covered, effectively isolating the external environment from interference with the sprocket drive device. The installation position of the protective cover is directly related to the mounting frame 3, ensuring both spatial matching between the protective cover and the sprocket assembly and ensuring the stability of the protective structure through a rigid connection. This design avoids the risk of jamming or wear caused by the sprocket contacting external foreign objects during operation, while reducing the safety hazard of operators accidentally touching high-speed moving parts, thereby improving the reliability and safety of equipment operation.

[0032] As can be seen, the sprocket and chain drive system achieves reverse rotation control between the tank and the stirring assembly. The reversing motor 4 serves as the power source, transmitting power to the driving sprocket via a keyed connection, avoiding the slippage issues common in traditional belt drives. The driving and driven sprockets form a rigid transmission via a chain, accurately transmitting speed and torque to ensure stable relative motion between the tank rotating sleeve 11 and the transverse stirring mechanism. The keyed connection structure not only enhances the assembly reliability of the sprocket, motor shaft, and tank rotating sleeve 11 but also effectively prevents loosening of transmission components that may occur during long-term operation. This transmission system replaces the high-precision machining requirements of traditional gear drives with mechanical meshing, reducing manufacturing costs while ensuring transmission efficiency.

[0033] like Figure 1 As shown, the fermenter inner shell 12 includes a cylindrical part, and a flow guide with a frustum-shaped structure is welded and fixed to both ends of the cylindrical part. The discharge port of the fermenter inner shell 12 is opened at the center of the flow guide located below, and multiple sets of bottom-turning material components 2 are installed on the outer wall of the flow guide located below.

[0034] By designing the inner shell 12 of the fermenter as a combination of a cylindrical section and two truncated conical guide sections, the inclined surface characteristics of the truncated conical guide sections guide the material to flow naturally towards the center of the discharge port, preventing material accumulation at the bottom edge of the tank. Specifically, the discharge port is located at the center of the lower guide section, forming a forced flow path for material convergence. Combined with multiple sets of downward-turning material components 2 installed on the outer wall of this guide section, the stirring blades 2-6 can directly act on the material convergence area, performing secondary crushing and stirring of high-concentration materials during the unloading process. This structure, through the coordinated operation of its spatial form and stirring components, enhances the dynamic mixing effect of the bottom material while ensuring the structural strength of the tank, effectively solving the problem of material residue during unloading inherent in traditional flat-bottomed tanks.

[0035] like Figure 1 As shown, the temperature control structure includes a fermentation tank outer shell 13 fixed to the outer wall of the fermentation tank inner shell 12. An annular cavity is left between the fermentation tank inner shell 12 and the fermentation tank outer shell 13. A medium spiral tube 14 is arranged in the annular cavity and wound around the outer wall of the fermentation tank inner shell 12. A medium inlet is arranged at the upper part of the medium spiral tube 14 and a medium outlet is arranged at the lower part. Control valves are arranged at both the medium inlet and the medium outlet. An inlet pipe is connected to the upper part of the annular cavity and an outlet pipe is connected to the lower part. Control valves are arranged on both the inlet pipe and the outlet pipe. It also includes a heat-insulating outer shell 15 fixed to the fermentation tank inner shell 12 and covered outside the fermentation tank outer shell 13. A heat-insulating cavity is arranged between the fermentation tank outer shell 13 and the heat-insulating outer shell 15 and filled with heat-insulating material. It also includes a temperature measuring element installed on the fermentation tank inner shell 12 for monitoring the temperature of the inner cavity of the fermentation tank inner shell 12.

[0036] As can be seen, precise temperature control is achieved through a multi-layered structural design. The annular cavity formed by the outer shell 13 and the inner shell of the fermenter provides space for media circulation. The media spiral tube 14 is coiled around the outer wall of the inner shell, achieving uniform heat conduction by introducing a heat exchange medium (such as hot water or refrigerant). The control valves at the media inlet and outlet can adjust the flow rate to match the needs of different fermentation stages. The inlet and outlet pipes of the annular cavity allow direct injection of liquid media into the cavity, further expanding the heat exchange area and enhancing the flexibility of temperature regulation. The insulation shell 15 and the filled insulation material form a heat insulation layer, reducing heat loss and ensuring stable internal cavity temperature. Temperature sensors monitor the internal cavity temperature in real time, providing data support for dynamic adjustment of media flow rate or temperature. The synergistic effect of each layer of the structure solves the problems of uneven temperature distribution, large heat loss, and lag in regulation in traditional fermenters, thereby improving fermentation efficiency. Through the above settings, the internal temperature of the fermenter is effectively controlled and its stability is maintained, thereby improving the fermentation efficiency and quality of organic fertilizer.

[0037] Working principle: Specifically, the mounting frame 3 supports the stirring horizontal shaft 7-1 via bearing seats, while also bearing the rotation of the tank. When the stirring drive component 7-4 drives the stirring horizontal shaft 7-1 to rotate clockwise, the tank drive device synchronously drives the fermentation tank to rotate counterclockwise, forming a bidirectional shearing action. The blade mounting rod 7-2 and the stirring blades 7-3 on the stirring horizontal shaft 7-1 are arranged at a specific angle, pushing the material towards the tank wall during rotation, while the counter-rotating tank wall brings the material back to the central area, forming forced convection. Multiple sets of bottom-feeding components 2 operate independently, with rotating blades cutting into the sediment layer and lifting the bottom material to the main stirring area. The temperature control structure precisely regulates the tank wall temperature through the circulating medium, the pressure gauge monitors the changes in air pressure inside the tank in real time, and the vent 10 maintains the activity of aerobic bacteria. The discharge valve 1 adopts a quick-opening structure, quickly discharging the material after fermentation is completed.

Claims

1. A bio-fertilizer fermenter characterized in that: The system includes a mounting frame (3), on which a fermenter inner shell (12) is movably connected. A temperature control structure is fitted on the outer wall of the fermenter inner shell (12). An inlet (8), several vents (10), and a pressure gauge are provided at the top of the fermenter inner shell (12). An outlet is provided at the bottom of the fermenter inner shell (12), and a discharge valve (1) is provided at the outlet. Two coaxial tank rotating sleeves (11) are fixedly connected to the outer wall of the fermenter inner shell (12). The system also includes a transverse stirring assembly (7) that is transversely inserted into and rotatably connected to the fermenter inner shell (12). The transverse stirring assembly (7) includes a transverse stirring mechanism that is rotatably connected to the two tank rotating sleeves (11). The end of the transverse stirring mechanism is... The part is rotatably connected to the mounting frame (3); it also includes a stirring drive (7-4) mounted on the mounting frame (3) for driving the transverse stirring mechanism to rotate; it also includes a tank driving device mounted on the mounting frame (3) for driving the fermentation tank inner shell (12) to rotate relative to the transverse stirring assembly (7); multiple sets of bottom turning assembly (2) are provided at the bottom of the fermentation tank inner shell (12); the bottom turning assembly (2) includes a sealing sleeve structure mounted on the fermentation tank inner shell (12), a stirring blade shaft (2-6) rotatably connected to it is inserted in the sealing sleeve structure, and several stirring blades (2-7) are mounted on the stirring blade shaft (2-6); it also includes a rotary motor (2-1) for driving the stirring blade shaft (2-6) to rotate.

2. The bio-fertilizer fermentation tank as described in claim 1, characterized in that: in The top of the inner shell (12) of the fermenter is provided with an upper stirring component (9) that is in close fit with the horizontal stirring component (7). The structure of the upper stirring component (9) is the same as that of the lower material turning component (2).

3. The bio-fertilizer fermenter according to claim 1, wherein: the fermenter is a cylindrical shape. The sealing sleeve structure includes a flange-connected support sleeve (2-2) and an outer sealing sleeve (2-4). The outer sealing sleeve (2-4) is fixedly connected to the inner shell (12) of the fermenter. A rotary motor (2-1) is mounted on the support sleeve (2-2). An inner rotating support sleeve (2-3) is fixedly connected to the support sleeve (2-2) and the outer sealing sleeve (2-4) and is sealed to both. The lower part of the stirring blade shaft (2-6) passes through the inner rotating support sleeve (2-3) and rotates with it through a rolling bearing. Dynamic connection; a sealing cover plate (2-10) and a sealing end cover (2-5) connected to the inner rotating support sleeve (2-3) are provided at the port of the outer sealing sleeve (2-4), the stirring blade shaft (2-6) passes through the sealing end cover (2-5) and is clearance-fitted with it, and a sealing ring is provided between the two; it also includes an end cover cover (2-9) fixedly connected to the stirring blade shaft (2-6) and covered outside the sealing end cover (2-5), and the end cover cover (2-9) is clearance-fitted with the sealing end cover (2-5).

4. The bio-fertilizer fermentation tank as described in claim 1, characterized in that: Several stirring blades (2-7) are arranged in pairs, with two stirring blades (2-7) in each pair arranged in a cross shape; a spacer sleeve (2-8) is provided between two adjacent pairs of stirring blades (2-7) and fixed to the stirring blade shaft (2-6); a washer is provided on the top of the stirring blade shaft (2-6) and a cap-type nut is screwed on.

5. The bio-fertilizer fermentation tank as described in claim 1, characterized in that: The transverse stirring mechanism includes a stirring shaft (7-1) that passes through the inner shell (12) of the fermenter and is rotatably connected to two tank rotating sleeves (11) via rolling bearings. The stirring shaft (7-1) is rotatably connected to the mounting frame (3) via a seat bearing. A sealing ring, an inner pressure cover, and a locking nut are provided between the stirring shaft (7-1) and each tank rotating sleeve (11). The mechanism also includes a number of blade mounting rods (7-2) that are fixed on the stirring shaft (7-1) and are evenly distributed along its axial direction. The number of blade mounting rods (7-2) are evenly distributed in the circumferential direction of the stirring shaft (7-1). An inclined stirring blade (7-3) is fixed to the outer end of each blade mounting rod (7-2).

6. The bio-fertilizer fermentation tank as described in claim 1, characterized in that: The tank drive device includes a tilting motor (4) mounted on a mounting frame (3), a tilting drive sprocket (5) keyed to the output end of the tilting motor (4), and a tilting driven sprocket (6) keyed to the corresponding tank rotating sleeve (11). A chain is driven between the tilting drive sprocket (5) and the tilting driven sprocket (6).

7. The bio-fertilizer fermentation tank as described in claim 1, characterized in that: The temperature control structure includes a fermenter shell (13) fixed to the outer wall of the fermenter inner shell (12). An annular cavity is left between the fermenter inner shell (12) and the fermenter shell (13). A media spiral tube (14) is coiled around the outer wall of the fermenter inner shell (12) within the annular cavity. A media inlet is located at the upper part of the media spiral tube (14), and a media outlet is located at the lower part. Control valves are installed at both the media inlet and outlet. The upper part of the annular cavity... The fermenter is connected to an inlet pipe at the top and an outlet pipe at the bottom, and control valves are installed on both the inlet and outlet pipes. It also includes an insulation shell (15) that is fixed to the inner shell (12) of the fermenter and covers the outer shell (13) of the fermenter. An insulation cavity is provided between the outer shell (13) of the fermenter and the insulation shell (15) and the insulation cavity is filled with insulation material. It also includes a temperature measuring device installed on the inner shell (12) of the fermenter for monitoring the temperature of the inner cavity of the inner shell (12) of the fermenter.

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