Agricultural waste fermentation device with mixing structure and use method thereof

Abstract

The invention discloses an agricultural waste fermentation device with a mixing structure and a use method thereof.The agricultural waste fermentation device with the mixing structure comprises a fermentation cylinder, a stirring structure, a disinfection structure, a material stirring structure and a smashing structure, and the stirring structure is arranged on one side of the fermentation cylinder; a disinfection structure is arranged above the fermentation cylinder, a material shifting structure is arranged on one side of the disinfection structure, a feeding port is formed in the side, away from the fermentation cylinder, of the disinfection structure, a smashing structure is arranged on one side of the feeding port, and a material scraping structure is arranged on the side, close to the fermentation cylinder, of the disinfection structure. According to the agricultural waste fermentation device with the mixing structure provided by the invention, comprehensive disinfection of agricultural wastes is realized through the combined action of the fermentation cylinder, the stirring structure, the disinfection structure, the material shifting structure and the crushing structure, the fermentation efficiency is improved, meanwhile, the material conveying belt is cleaned, and the conveying efficiency and the cleanliness of the material conveying belt are improved.

Description

Technical Field

[0001] This invention relates to the field of fermentation equipment technology, and in particular to an agricultural waste fermentation device with a mixed structure and its method of use. Background Technology

[0002] Agricultural waste refers to all kinds of materials generated in the entire process of agricultural production, agricultural product processing, and rural life. It includes crop straw, stalks, fallen leaves, and weeds generated in the planting industry, as well as dead branches and fallen leaves and pruned branches from forestry production; livestock and poultry manure, animal carcasses, and bedding materials generated in the animal husbandry industry; waste residue, wastewater, and waste materials generated in the agricultural product processing process, such as rice bran and wheat bran after grain processing, and residues after fruit and vegetable processing; and organic waste generated in rural life, such as kitchen waste.

[0003] If agricultural waste is not properly disposed of, it will not only cause serious pollution to the rural environment, such as producing foul odors, breeding mosquitoes and flies, and spreading germs, but also result in a huge waste of resources. However, during the fermentation of agricultural waste, the large number of pathogens, bacteria, and insect eggs carried by the waste can easily compete with the microorganisms produced during fermentation for nutrients, leading to reduced fermentation efficiency and the generation of irritating odors and harmful substances, thus polluting the environment and soil. Therefore, there is an urgent need for equipment to solve these problems. Summary of the Invention

[0004] In view of the above-mentioned shortcomings in the current field of fermentation equipment technology, the present invention provides an agricultural waste fermentation device with a mixed structure, which can achieve comprehensive disinfection of agricultural waste and improve fermentation efficiency.

[0005] An agricultural waste fermentation device with a mixed structure includes a fermentation cylinder 1, with a first fixed frame 11 connected to both ends of the fermentation cylinder 1. A stirring structure is provided on one side of the fermentation cylinder 1, and the stirring structure includes a first motor 121 connected to a support plate at one end of the first fixed frame 11. A rotating rod 122 is connected to the first motor 121 on the side near the fermentation cylinder 1, and the rotating rod 122 is rotatably connected to the fermentation cylinder 1. A sterilization structure is fixedly provided above the fermentation cylinder 1, and a material feeding structure is provided on one side of the sterilization structure. A feed inlet 13 is provided on the side of the sterilization structure away from the fermentation cylinder 1, and a crushing structure is provided on the side of the feed inlet 13. A scraping structure is provided on the side of the sterilization structure near the fermentation cylinder 1.

[0006] According to one aspect of the present invention, the rotating rod 122 is annularly connected to the stirring blade 123, and the outer end of the stirring blade 123 is fixed with a scraper 124, which is slidably connected to the inner wall of the fermentation cylinder (1).

[0007] According to one aspect of the present invention, the rotating rod 122 is driven by a first motor 121, the stirring blade 123 rotates inside the fermentation tank 1 to stir as the rotating rod 122 rotates, and the scraper 124 slides up and down on the inner wall of the fermentation tank 1 as the stirring blade 123 rotates.

[0008] According to one aspect of the present invention, the disinfection structure includes a storage tank 2, an installation box 21, a water pump 23, an infusion pipe 24, a distribution pipe 25, and a drain pipe 26. The storage tank 2 is disposed above the fermentation cylinder 1. The installation box 21 is connected to one end of the storage tank 2 near the fermentation cylinder 1. The installation box 21 is located in the fermentation cylinder 1 and the feed inlet 13 and connects the fermentation cylinder 1 and the feed inlet 13. A conveyor belt 22 is rotatably connected to the inner wall of the installation box 21. The water pump 23 is connected to one end of the storage tank 2. The infusion pipe 24 is threadedly connected to the side of the water pump 23 away from the storage tank 2. The distribution pipe 25 is connected to one end of the infusion pipe 24 away from the water pump 23. The drain pipe 26 is equidistantly connected to one end of the distribution pipe 25.

[0009] According to one aspect of the present invention, a feeding structure is provided on one side of the disinfection structure. The feeding structure includes a third motor 271, a worm gear 272, a third gear 273, and a rotating roller 274. The third motor 271 is connected to the outer wall support plate of the mounting box 21 near the feed inlet 13. The third motor 271 is connected to the worm gear 272 on the side away from the feed inlet 13. The outer wall of the worm gear 272 is equidistantly meshed with the third gear 273. The third gear 273 is connected to the rotating roller 274 at the end away from the worm gear 272. The outer wall of the rotating roller 274 is connected to a first spring 275 in an annular shape. The first spring 275 is connected to a shift block 276 at the end away from the rotating roller 274. The shift block 276 is slidably connected to the conveyor belt 22. The third motor 271 is provided with a reciprocating wire groove 277 in the middle of the worm gear 272.

[0010] According to one aspect of the invention, the outer wall of the reciprocating groove 277 is threadedly connected to a mounting base 28, the mounting base 28 being rotatably connected to a telescopic tube 29 at one end near the dispensing tube 25, the telescopic tube 29 being connected to a drain tube 26.

[0011] According to one aspect of the present invention, a crushing structure is provided on one side of the feed inlet 13. The crushing structure includes: a second motor 141, a transmission rod 142, a first gear 143, a second gear 144, and a crushing roller 145. The second motor 141 is connected to a support plate on the side of the feed inlet 13 away from the sterilization structure. The second motor 141 is connected to the transmission rod 142 on the side near the feed inlet 13. The transmission rod 142 is rotatably connected to the feed inlet 13. The outer wall of the transmission rod 142 is connected to the first gear 143. A plurality of meshing second gears 144 are arranged parallel to each other on one side of the first gear 143.

[0012] According to one aspect of the invention, the outer wall of the transmission rod 142 is connected to a crushing roller 145, and the two crushing rollers 145 rotate in opposite directions through the rotation of a second gear 144 that meshes with each other.

[0013] According to one aspect of the present invention, the disinfection structure is provided with a scraping structure on the side near the fermentation tank 1. The scraping structure includes: a second fixing frame 3, a second spring 31 and a scraper 32. The second fixing frame 3 is connected to the inner wall of the mounting box 21 near the discharge port at the top of the fermentation tank 1. The second spring 31 is linearly connected inside the second fixing frame 3. The scraper 32 is connected to one end of the second spring 31 near the conveyor belt 22. The scraper 32 and the conveyor belt 22 are slidably connected.

[0014] According to one aspect of the invention, the scraper 32 is disposed above the side of the conveyor belt 22 and is in contact with the surface of the conveyor belt 22.

[0015] Advantages of this invention: (1) By setting a disinfection structure and a feeding structure, agricultural waste falls into the conveyor belt in the installation box through the feed inlet. The water pump starts and delivers the disinfectant in the storage tank to the delivery pipe. The delivery pipe then delivers the disinfectant to the drain pipe at one end of the distribution pipe. The drain pipe sprays the disinfectant out to disinfect the crushed agricultural waste. The third motor runs and drives the worm to rotate. The reciprocating groove on the worm rotates with the worm and drives the installation seat to move back and forth. The telescopic rod rotates and extends with the movement of the installation seat, causing the angle of the drain pipe to deflect, thereby spraying the agricultural waste comprehensively. At the same time, the worm rotates with the third motor. The machine operation drives the third gear to rotate. Under the drive of the third gear, the roller makes the paddle on the first spring turn over the agricultural waste, and disinfects the agricultural waste in a comprehensive manner, thus improving the fermentation efficiency; (2) By setting up a scraping structure, the scraper attached to the conveyor belt will scrape off the agricultural waste attached to the conveyor belt as the conveyor belt rotates. Since the thickness of the agricultural waste attached to the conveyor belt is different, the second spring fixed in the second fixed frame will be compressed or rebounded as the thickness of the adhesion changes, so that the scraper can fully fit with the conveyor belt, which is convenient for cleaning the conveyor belt, thereby improving the conveying efficiency and cleanliness of the conveyor belt. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an agricultural waste fermentation device with a hybrid structure according to the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of an agricultural waste fermentation device with a hybrid structure according to the present invention; Figure 3 This is a schematic diagram of the crushing structure of an agricultural waste fermentation device with a mixed structure according to the present invention; Figure 4 This is a schematic diagram of the disinfection structure and material feeding structure of an agricultural waste fermentation device with a mixed structure according to the present invention; Figure 5 This is a partially enlarged view of the feeding structure of an agricultural waste fermentation device with a mixed structure according to the present invention; Figure 6 This is a schematic diagram of the material hanging structure of an agricultural waste fermentation device with a mixed structure according to the present invention; The components include: 1. Fermentation cylinder; 11. First fixed frame; 121. First motor; 122. Rotating rod; 123. Stirring blade; 124. Scraper; 13. Feed inlet; 141. Second motor; 142. Transmission rod; 143. First gear; 144. Second gear; 145. Crushing roller; 2. Storage tank; 21. Mounting box; 22. Conveyor belt; 23. Water pump; 24. Infusion pipe; 25. Separating pipe; 26. Drain pipe; 271. Third motor; 272. Worm gear; 273. Third gear; 274. Rotating roller; 275. First spring; 276. Pulley; 277. Reciprocating screw groove; 28. Mounting base; 29. ​​Telescopic rod; 3. Second fixed frame; 31. Second spring; 32. Scraper. Detailed Implementation

[0018] 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.

[0019] Example 1 An agricultural waste fermentation device with a mixed structure includes a fermentation cylinder 1, with a first fixed frame 11 connected to both ends of the fermentation cylinder 1. A stirring structure is provided on one side of the fermentation cylinder 1, and the stirring structure includes a first motor 121 connected to a support plate at one end of the first fixed frame 11. A rotating rod 122 is connected to the first motor 121 on the side near the fermentation cylinder 1, and the rotating rod 122 is rotatably connected to the fermentation cylinder 1. A sterilization structure is fixedly provided above the fermentation cylinder 1, and a material feeding structure is provided on one side of the sterilization structure. A feed inlet 13 is provided on the side of the sterilization structure away from the fermentation cylinder 1, and a crushing structure is provided on the side of the feed inlet 13. A scraping structure is provided on the side of the sterilization structure near the fermentation cylinder 1.

[0020] The rotating rod 122 is annularly connected to the stirring blade 123. A scraper 124 is fixed to the outer end of the stirring blade 123. The scraper 124 is slidably connected to the inner wall of the fermentation cylinder 1. The rotating rod 122 is driven by the first motor 121. The stirring blade 123 rotates and stirs inside the fermentation cylinder 1 as the rotating rod 122 rotates. The scraper 124 slides up and down on the inner wall of the fermentation cylinder 1 as the stirring blade 123 rotates. The stirring blade 123 stirs the agricultural waste in the fermentation cylinder 1 as the rotating rod 122 rotates, so that the agricultural waste is fully fermented. The scraper 124 scrapes off the agricultural waste adhering to the fermentation cylinder 1 as the stirring blade 123 rotates.

[0021] The disinfection structure includes a storage tank 2, an installation box 21, a water pump 23, an infusion pipe 24, a distribution pipe 25, and a drain pipe 26. The storage tank 2 is positioned above the fermentation cylinder 1. The installation box 21 is connected to one end of the storage tank 2 near the fermentation cylinder 1. The installation box 21 is located in the fermentation cylinder 1 and the feed inlet 13, connecting the fermentation cylinder 1 and the feed inlet 13. A conveyor belt 22 is rotatably connected to the inner wall of the installation box 21. The water pump 23 is connected to one end of the storage tank 2. The infusion pipe 24 is threadedly connected to the side of the water pump 23 away from the storage tank 2. The distribution pipe 25 is connected to the end of the infusion pipe 24 away from the water pump 23. The drain pipe 26 is equidistantly connected to one end of the distribution pipe 25.

[0022] A feeding structure is provided on one side of the disinfection structure. The feeding structure includes a third motor 271, a worm gear 272, a third gear 273, and a rotating roller 274. The third motor 271 is connected to the outer wall support plate of the mounting box 21 near the feed inlet 13. The third motor 271 is connected to the worm gear 272 on the side away from the feed inlet 13. The outer wall of the worm gear 272 is equidistantly meshed with the third gear 273. The third gear 273 is connected to the rotating roller 274 at the end away from the worm gear 272. The outer wall of the rotating roller 274 is connected to a first spring 275 in a ring. The first spring 275 is connected to a shift block 276 at the end away from the rotating roller 274. The shift block 276 is slidably connected to the conveyor belt 22. The third motor 271 is provided with a reciprocating wire groove 277 in the middle of the worm gear 272.

[0023] A crushing structure is provided on one side of the feed inlet 13. The crushing structure includes a second motor 141, a transmission rod 142, a first gear 143, a second gear 144, and a crushing roller 145. The second motor 141 is connected to a support plate on the side of the feed inlet 13 away from the sterilization structure. The second motor 141 is connected to the transmission rod 142 on the side close to the feed inlet 13. The transmission rod 142 is rotatably connected to the feed inlet 13. The outer wall of the transmission rod 142 is connected to the first gear 143. A plurality of meshing second gears 144 are arranged parallel to each other on one side of the first gear 143.

[0024] The disinfection structure has a scraping structure on the side near the fermentation tank 1. The scraping structure includes a second fixing frame 3, a second spring 31, and a scraper 32. The second fixing frame 3 is connected to the inner wall of the mounting box 21 near the discharge port at the top of the fermentation tank 1. The second spring 31 is linearly connected inside the second fixing frame 3. The scraper 32 is connected to the end of the second spring 31 near the conveyor belt 22. The scraper 32 and the conveyor belt 22 are slidably connected.

[0025] Example 2 In a specific embodiment, the fermentation tank is equipped with a stirring assembly for turning and cleaning the materials during fermentation. This assembly mainly includes a rotating rod vertically positioned at the central axis of the fermentation tank. The rotating rod is directly driven by a first motor located on the outer side of the top or bottom of the fermentation tank via a coupling or reduction mechanism. Several sets of stirring blades are connected in a ring along the axial and / or circumferential direction of the rotating rod. Each set of stirring blades typically extends radially outwards, forming a stirring frame. A scraper is further fixedly installed at the outer end of each stirring blade away from the rotating rod. The profile of the scraper is adapted to the curvature of the inner wall of the fermentation tank and maintains sliding contact with the inner wall of the fermentation tank with a certain preload or through an elastic element. During operation, the first motor drives the rotating rod to rotate, and all the stirring blades fixed to it rotate around the axis inside the fermentation tank. During rotation, the stirring blades continuously cut, lift, and scatter the agricultural waste inside the tank, thereby achieving uniform mixing and oxygenation of the materials and promoting the aerobic fermentation process of microorganisms. Meanwhile, the scraper plate fixed to the end of the stirring blade rotates with the blade and maintains sliding contact with the inner wall of the fermentation tank. During rotation, the scraper plate effectively scrapes off any material adhering to or clumping on the tank wall during fermentation, allowing it to return to the main material for mixing and fermentation. This design avoids material accumulation and waste on the wall surface, and also helps maintain the cleanliness of the inner wall, ensuring uniform heat transfer and long-term operational stability. This integrated stirring and scraping structure achieves a balance between efficient stirring and self-cleaning functions, significantly improving fermentation efficiency and ease of equipment maintenance.

[0026] In a specific embodiment, the storage tank is installed above the fermentation tank to store the disinfectant. A mounting box is connected to the side of the storage tank near the fermentation tank. This mounting box is connected to both the feed inlet and the fermentation tank body, forming a stable support and transition structure. Inside the mounting box is a rotatable conveyor belt, which is rotatably connected to the inner wall of the mounting box via bearings or a shaft, used to smoothly transport materials from the feed inlet into the fermentation tank. A water pump is installed at one end of the storage tank, with its inlet connected to the inside of the storage tank via a pipe. The outlet of the water pump is fitted with a delivery pipe via a threaded connection, extending above the feed area of ​​the fermentation tank. A horizontally arranged distribution pipe is connected to the end of the delivery pipe, with multiple drainage pipes arranged in a straight array along its length. Each drainage pipe outlet corresponds to the conveyor belt or the feed channel, thereby achieving uniform spraying or dripping of the disinfectant onto the material surface. This structure achieves continuous and uniform disinfection before the material enters the fermentation tank, balancing structural compactness and operational reliability.

[0027] In a specific embodiment, the material-pushing structure is located inside the mounting box near the feed inlet, primarily used to agitate and flatten the material on the conveyor belt, and coordinate with the disinfectant spraying action. The material-pushing structure also includes a third motor, which is fixedly mounted on a support plate on the outer wall of the mounting box, located on the feed inlet side. The output shaft of the third motor is driven by a worm gear, which is arranged laterally and extends into the mounting box. Multiple third gears are arranged at equal intervals and meshed on the outer wall along the length of the worm gear, each forming a gear transmission engagement with the worm gear. A rotating roller is connected to the side of each third gear away from the worm gear, and the axis of the rotating roller is coaxial with the third gear. Multiple first springs are connected in a circular array on the outer circumference of the rotating roller, and the other end of each first spring is connected to a prying block. When the prying block rotates with the rotating roller, its bottom forms a sliding contact with the surface of the conveyor belt, thereby achieving continuous agitation of the material. Furthermore, a reciprocating groove is formed in the middle section of the worm gear. The reciprocating screw groove has a threaded mounting base on its outer wall, which can reciprocate along the worm gear axis. A telescopic rod is rotatably connected to the mounting base near the dispensing pipe, and the end of the telescopic rod connects to the dispensing pipe, allowing the dispensing pipe to move with the mounting base, achieving uniform lateral spraying of disinfectant on the material surface. This material-dispensing structure not only promotes uniform material distribution but also drives the disinfectant spraying assembly to reciprocate along the width of the conveyor belt, improving the uniformity of disinfection coverage and the overall efficiency of material handling.

[0028] In a specific embodiment, the pre-treated agricultural waste is conveyed to the crushing station through the feed inlet and falls into the gap between two parallel crushing rollers. The drive system is powered by a second motor. After the second motor starts, it drives a transmission rod connected to its output shaft to rotate. At least one first gear is fixedly mounted on this transmission rod. This first gear meshes with a first-stage second gear mounted on the shaft end of one of the crushing rollers, thereby transmitting power to the first crushing roller, causing it to rotate. To achieve relative counter-rotation of the two crushing rollers to generate shearing and crushing effects, this embodiment employs a linkage gear set. On the same plane as the first second gear, one or more driven second gears are coaxially or parallelly arranged and meshing with it. Through this transmission chain formed by the meshing second gears, power is transmitted to the final-stage second gear connected to the shaft end of the other crushing roller. The gear set acts as an intermediary. The rotation direction of the second crushing roller is opposite to that of the first crushing roller. As the two crushing rollers move in opposite directions, the toothed or grooved structure on their surfaces can effectively bite, tear, and crush the agricultural waste that falls between them, thereby achieving the crushing function. The transmission structure is compact in design and can ensure that the two rollers operate synchronously and in reverse in a stable manner, with high crushing efficiency. It is a key part of the pretreatment process.

[0029] In a specific embodiment, an adaptive cleaning scraper assembly is provided below or to the rear side of the conveyor belt. This assembly mainly includes a scraper body and an elastic adjustment mechanism. The scraper body is mounted via a second fixing frame, and its effective scraping edge is always in contact with the bearing surface (or return surface) of the conveyor belt under the action of the elastic mechanism. When the conveyor belt rotates cyclically under the drive of the driving device, the scraper in contact with its surface continuously scrapes away the agricultural waste residue adhering to the belt surface, thereby completing the cleaning of the conveyor belt and preventing cross-contamination or slippage of materials. To achieve adaptive cleaning for different adhesion thicknesses, this embodiment provides at least one second spring in the second fixing frame. One end of the second spring is connected to the fixing frame, and the other end is connected to the scraper or its mounting arm, providing the scraper with an elastic preload pointing towards the surface of the conveyor belt. During operation, when the thickness of the material layer adhering to the surface of the conveyor belt is uneven, the resistance experienced by the scraper also changes accordingly. When encountering a thick adhesive layer, the scraper compresses the second spring under resistance, causing it to move backward to buffer the pressure. When the adhesive layer is thin or nonexistent, the second spring rebounds, pushing the scraper forward to maintain a tight fit. Through this dynamic adjustment mechanism, the scraper can adapt to real-time changes in the surface condition of the conveyor belt, always maintaining optimal and comprehensive adhesion, thus ensuring the continuity and thoroughness of the cleaning operation. This adaptive cleaning structure effectively solves the problem of cleaning dead zones or excessive wear caused by changes in material adhesion thickness, significantly improving the stability and service life of the conveying system.

[0030] Example 3 In a specific embodiment, the workflow of this agricultural waste fermentation device with a hybrid structure is divided into three parts: pretreatment and disinfection, fermentation treatment, and conveyor belt cleaning.

[0031] Pretreatment and disinfection: The agricultural waste to be treated is fed into the equipment through the inlet. Under gravity and guidance, the material is conveyed to the meshing area between two parallel crushing rollers. At this time, the second motor is started, and its output shaft drives the transmission rod connected to it to rotate. The first gear fixed on the transmission rod rotates accordingly, driving the first second gear directly meshing with it to rotate. Through a transmission chain formed by multiple second gears meshing in sequence, power is transmitted to the second gear at the end of the shaft of another crushing roller. The design of this gear set ensures that the two crushing rollers rotate synchronously in opposite directions. The agricultural waste falling between the rollers is effectively crushed under the shearing and squeezing action of the double rollers. The crushed material falls into the conveyor belt inside the mounting box through the channel below the inlet. Driven by the drive device, the conveyor belt smoothly transports the material towards the fermentation tank. At the same time, the disinfection process is started: the water pump draws disinfectant from the storage tank, pumps it through the delivery pipe to the distribution pipe, and finally sprays it out from multiple drain pipes arranged in a straight array on the distribution pipe, forming a mist or curtain of disinfectant liquid. To achieve uniform coverage of the disinfectant on the material surface, a third motor starts synchronously. This third motor drives a worm gear to rotate, causing the reciprocating screw groove in the middle section of the worm to rotate as well, resulting in the threaded mounting seat reciprocating linearly along the worm's axis. A telescopic rod, rotatably connected to the mounting seat and the drain pipe, extends and deflects axially under the influence of the mounting seat, causing the entire dispensing pipe and its drain pipe to oscillate within a certain angle range, achieving a transverse scanning spray. As the worm gear rotates, multiple third gears evenly spaced on its outer wall rotate accordingly. Each third gear drives a fixed roller to rotate, causing the first spring in a ring array on the outer wall of the roller and its end-mounted lever to move. The bottom of the lever slides against the surface of the conveyor belt, continuously turning and flattening the material during transport, loosening it and fully exposing it to the falling disinfectant. The synergistic effect of crushing, conveying, levering, and oscillating spraying ensures comprehensive and efficient disinfection of the material. The disinfected material finally falls into the fermentation tank through the feed inlet at the top.

[0032] Fermentation Process: After the material enters the fermentation tank, the core fermentation and mixing process begins. The first motor is started, driving a vertically positioned rotating rod in the center of the fermentation tank via a coupling or reduction gear. Multiple layers of stirring blades fixed to the rotating rod rotate accordingly, cutting, lifting, and scattering the material inside the tank. This mechanical agitation provides the necessary oxygen and ensures uniform mixing, creating and maintaining ideal conditions for aerobic microbial activity, promoting rapid and thorough fermentation of agricultural waste. During the mixing process, scrapers fixed to the outer end of each stirring blade revolve with the blades. The scrapers, with their contours matching the curvature of the fermentation tank's inner wall and under the influence of any elastic pre-tension, maintain sliding contact with the tank wall. Their movement effectively scrapes off material adhering to or caked on the inner wall during fermentation, allowing it to re-participate in the mixing and fermentation process of the main material, preventing material accumulation and waste on the wall surface, while maintaining the cleanliness and heat transfer efficiency of the inner wall.

[0033] Conveyor Belt Cleaning: The self-cleaning function of the conveyor belt is activated after the material conveying process ends or during intervals. The scraper assembly installed below the conveyor belt (or on the non-working side) begins operation. Under the elastic preload provided by a second spring within its second mounting bracket, the scraper's blade remains in constant contact with the conveyor belt surface. As the conveyor belt continues to operate, the scraper removes residual waste adhering to the belt surface. This cleaning assembly is adaptive. When the thickness of the material layer adhering to the conveyor belt surface is uneven, the resistance experienced by the scraper changes in real time. When encountering a thicker layer, the resistance pushes the scraper to compress the second spring, causing it to elastically retract; when passing through a thinner layer or a clean area, the second spring rebounds, pushing the scraper to re-adhere tightly to the belt surface. This dynamic adjustment mechanism ensures that the scraper can fully adapt to changes in the belt surface condition, achieving stable and thorough cleaning, thereby maintaining the cleanliness of the conveyor belt and preparing it for the next round of material conveying operations.

[0034] The equipment completes a full work cycle of agricultural waste from pretreatment, disinfection, fermentation to equipment self-cleaning.

[0035] Advantages of this invention: (1) By setting a disinfection structure and a feeding structure, agricultural waste falls into the conveyor belt in the installation box through the feed inlet. The water pump starts and delivers the disinfectant in the storage tank to the delivery pipe. The delivery pipe then delivers the disinfectant to the drain pipe at one end of the distribution pipe. The drain pipe sprays the disinfectant out to disinfect the crushed agricultural waste. The third motor runs and drives the worm to rotate. The reciprocating groove on the worm rotates with the worm and drives the installation seat to move back and forth. The telescopic rod rotates and extends with the movement of the installation seat, causing the angle of the drain pipe to deflect, thereby spraying the agricultural waste comprehensively. At the same time, the worm rotates with the third motor. The machine operation drives the third gear to rotate. Under the drive of the third gear, the roller makes the paddle on the first spring turn over the agricultural waste, and disinfects the agricultural waste in a comprehensive manner, thus improving the fermentation efficiency; (2) By setting up a scraping structure, the scraper attached to the conveyor belt will scrape off the agricultural waste attached to the conveyor belt as the conveyor belt rotates. Since the thickness of the agricultural waste attached to the conveyor belt is different, the second spring fixed in the second fixed frame will be compressed or rebounded as the thickness of the adhesion changes, so that the scraper can fully fit with the conveyor belt, which is convenient for cleaning the conveyor belt, thereby improving the conveying efficiency and cleanliness of the conveyor belt.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A mixed structure agricultural waste fermentation device comprising a fermentation cylinder (1), characterized in that, The fermentation cylinder (1) is connected to a first fixed frame (11) at both ends. A stirring structure is provided on one side of the fermentation cylinder (1). The stirring structure includes a first motor (121). The first motor (121) is connected to a support plate at one end of the first fixed frame (11). The first motor (121) is connected to a rotating rod (122) on the side close to the fermentation cylinder (1). The rotating rod (122) is rotatably connected to the fermentation cylinder (1). A sterilization structure is fixedly provided above the fermentation cylinder (1). A feeding structure is provided on one side of the sterilization structure. A feed inlet (13) is provided on the side of the sterilization structure away from the fermentation cylinder (1). A crushing structure is provided on the side of the feed inlet (13). A scraping structure is provided on the side of the sterilization structure close to the fermentation cylinder (1).

2. The agricultural waste fermentation device with a hybrid structure according to claim 1, characterized in that, The rotating rod (122) is connected to the stirring blade (123) in a ring. The outer end of the stirring blade (123) is fixed with a scraper (124). The scraper (124) is slidably connected to the inner wall of the fermentation cylinder (1).

3. The agricultural waste fermentation device with a hybrid structure according to claim 2, characterized in that, The rotating rod (122) is driven by the first motor (121). The stirring blade (123) rotates in the fermentation tank (1) to stir as the rotating rod (122) rotates. The scraper (124) slides up and down on the inner wall of the fermentation tank (1) as the stirring blade (123) rotates.

4. The agricultural waste fermentation device with a hybrid structure according to claim 1, characterized in that, The disinfection structure includes a storage tank (2), an installation box (21), a water pump (23), an infusion pipe (24), a distribution pipe (25), and a drain pipe (26). The storage tank (2) is located above the fermentation cylinder (1). The installation box (21) is connected to one end of the storage tank (2) near the fermentation cylinder (1). The installation box (21) is located in the fermentation cylinder (1) and the feed inlet (13) and connects the fermentation cylinder (1) and the feed inlet (13). The inner wall of the installation box (21) is rotatably connected to a conveyor belt (22). One end of the storage tank (2) is connected to the water pump (23). The water pump (23) is threadedly connected to the infusion pipe (24) on the side away from the storage tank (2). The infusion pipe (24) is connected to the distribution pipe (25) at the end away from the water pump (23). One end of the distribution pipe (25) is equidistantly connected to the drain pipe (26).

5. The agricultural waste fermentation device with a hybrid structure according to claim 1, characterized in that, A feeding structure is provided on one side of the disinfection structure. The feeding structure includes a third motor (271), a worm (272), a third gear (273), and a rotating roller (274). The third motor (271) is connected to the outer wall support plate of the mounting box (21) near the feed inlet (13). The third motor (271) is connected to the worm (272) on the side away from the feed inlet (13). The outer wall of the worm (272) is equidistantly meshed with the third gear (273). The third gear (273) is connected to the rotating roller (274) at the end away from the worm (272). The outer wall of the rotating roller (274) is connected to the first spring (275) in a ring. The first spring (275) is connected to the shift block (276) at the end away from the rotating roller (274). The shift block (276) is slidably connected to the conveyor belt (22). The third motor (271) is provided with a reciprocating wire groove (277) in the middle of the worm (272).

6. The agricultural waste fermentation device with a hybrid structure according to claim 5, characterized in that, The reciprocating threaded groove (277) is connected to the mounting base (28) on the outer wall. The mounting base (28) is rotatably connected to the telescopic tube (29) at one end near the liquid distribution tube (25). The telescopic tube (29) is connected to the drain tube (26).

7. The agricultural waste fermentation device with a hybrid structure according to claim 1, characterized in that, A crushing structure is provided on one side of the feed inlet (13). The crushing structure includes: a second motor (141), a transmission rod (142), a first gear (143), a second gear (144), and a crushing roller (145). The second motor (141) is connected to a support plate on the side of the feed inlet (13) away from the sterilization structure. The second motor (141) is connected to the transmission rod (142) on the side close to the feed inlet (13). The transmission rod (142) is rotatably connected to the feed inlet (13). The outer wall of the transmission rod (142) is connected to the first gear (143). A plurality of meshing second gears (144) are arranged parallel to each other on one side of the first gear (143).

8. The agricultural waste fermentation device with a hybrid structure according to claim 7, characterized in that, The outer wall of the transmission rod (142) is connected to the crushing roller (145), and the two crushing rollers (145) rotate in opposite directions through the rotation of the meshing second gear (144).

9. The agricultural waste fermentation device with a hybrid structure according to claim 1, characterized in that, The disinfection structure has a scraping structure on the side near the fermentation cylinder (1). The scraping structure includes a second fixing frame (3), a second spring (31), and a scraper (32). The second fixing frame (3) is connected to the inner wall of the installation box (21) near the discharge port at the top of the fermentation cylinder (1). The second fixing frame (3) is linearly connected to the second spring (31) inside. The scraper (32) is connected to one end of the second spring (31) near the conveyor belt (22). The scraper (32) and the conveyor belt (22) are slidably connected.

10. The agricultural waste fermentation device with a hybrid structure according to claim 9, characterized in that, The scraper (32) is disposed on the side above the conveyor belt (22) and is in contact with the surface of the conveyor belt (22).

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