Sub-hypothermia stable type cow dung fermentation cow mattress material device

Abstract

The present application relates to the technical field of cow bedding material prepared by fermentation of cow dung, and discloses a sublow-temperature stable cow bedding material fermentation device, a drying assembly, a fermentation assembly and a deodorization assembly are sequentially arranged in the support from top to bottom; the anti-accumulation stirring assembly arranged in the deodorization assembly stirs the raw material after fermentation, and the heat supply assembly introduces hot air into the deodorization assembly through the anti-accumulation stirring assembly, so that the hot air and the raw material are fully contacted. The present application adds the drying assembly between the separation and fermentation links to solve the problem of high water content of the cow dung after solid-liquid separation, and the hot air uniformly penetrates the cow dung raw material to realize rapid dehydration. The multi-component cooperative movement of the anti-accumulation stirring assembly keeps the raw material in a dynamic loose state, and the dynamic jetting of the sliding connecting rod forms a closed loop process of “hot air penetration-raw material stirring-odor release”, the raw material is in a loose state and fully contacts with the hot air, and the odor can be quickly taken out by the hot air.

Description

Technical Field

[0001] This invention relates to the field of cow manure fermentation for preparing cow bedding material, specifically a sub-low temperature stable cow manure fermentation cow bedding material device. Background Technology

[0002] With the rapid development of intensive farming, the concentrated discharge of cow manure is affecting the sustainable development of the dairy farming industry. However, preparing cow manure bedding is a feasible way to achieve the reduction, harmlessness, and resource utilization of cow manure. It can effectively reduce manure discharge, turn waste into treasure, and provide farms with economical and environmentally friendly bedding.

[0003] Through on-site investigation, it was found that the technology for recycling cow dung bedding in Inner Mongolia mainly adopts natural fermentation and constant-temperature heating fermentation methods. After the composted raw materials are piled inside the tank, most of the odor will be eliminated under continuous composting. Before discharge, the remaining odor needs to be carried out by hot air. However, the piled-up composted raw materials inside the tank can easily prevent the hot air from entering the tank smoothly, thus failing to remove the remaining odor. The dense pile of composted raw materials also prevents the hot air from making sufficient contact with them, reducing the efficiency of the hot air in removing odor. Furthermore, the efficiency of stirring the composted raw materials with a simple stirring rod is low, and the stirring effect is poor, failing to make the composted raw materials loose and in sufficient contact with the hot air. To address this, we have developed a sub-low temperature stable cow dung fermentation cow bedding device. Summary of the Invention

[0004] The purpose of this invention is to provide a sub-low temperature stable cow manure fermentation cow bedding material device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sub-low temperature stable cow manure fermentation cow bedding material device includes a support frame, a heating component and a feeding component. The support frame is provided with a drying component, a fermentation component and a deodorization component from top to bottom. The drying component and the fermentation component are connected by a first connecting pipe, and the fermentation component and the deodorization component are connected by a second connecting pipe.

[0007] The feeding assembly is used to transport the raw materials after solid-liquid separation to the drying assembly, and the heating assembly is used to provide hot air to the drying assembly and the fermentation assembly to achieve the drying and fermentation of the raw materials.

[0008] The deodorization component has an anti-accumulation stirring component built in it. Driven by the first servo motor, the component stirs the fermented raw materials. At the same time, the heating component introduces hot air into the deodorization component through the anti-accumulation stirring component to achieve full contact between the hot air and the raw materials until the hot air carries away the odor from the raw materials, thus achieving deodorization.

[0009] The lower part of the deodorizing tank is formed by a partition to create a cavity.

[0010] The rotating drum of the anti-accumulation stirring assembly is located inside the cavity. A corrugated groove is provided around the middle side of the rotating drum. The bottom of the lifting vertical rod of the anti-accumulation stirring assembly extends through the partition into the cavity and is fixed with a sliding rod. The sliding rod extends through the corrugated groove into the rotating drum and is fixed with a limiting ball head. Preferably, the drying assembly includes a drying drum fixed inside the support, a drying shaft disposed inside the drying drum, and a first spiral blade disposed on the drying shaft.

[0011] The drying cylinder is fixed with a second servo motor and a first air collecting cylinder at both ends. One end of the drying shaft is fixed to the output end of the second servo motor, and the other end of the drying shaft extends into the first air collecting cylinder, so that the spray holes on the surface of the drying shaft are connected to the first air collecting cylinder through the channel inside the drying shaft.

[0012] The fermentation assembly includes a fermentation cylinder fixed inside a support, a fermentation shaft inside the fermentation cylinder, and a second spiral blade on the fermentation shaft.

[0013] The fermentation cylinder is fixed with a third servo motor and a second gas collecting cylinder at both ends. One end of the fermentation shaft is fixed to the output end of the third servo motor, and the other end of the fermentation shaft extends into the second gas collecting cylinder, so that the ejection holes on the surface of the fermentation shaft are connected to the second gas collecting cylinder through the internal channel of the fermentation shaft.

[0014] Preferably, the feeding assembly includes a feeding hopper, a feeding pipe communicating with the bottom side of the feeding hopper, a feeding auger built into the feeding pipe, and a fourth servo motor fixed at the top of the feeding pipe for driving the feeding auger to rotate.

[0015] The upper part of the feeding pipe is provided with a discharge pipe, which is located above the receiving funnel at the top of the drying cylinder.

[0016] Preferably, the heating component includes an air heater and a photovoltaic power generation panel that provides power to the air heater. The air outlet of the air heater is connected to a first heating pipe and a second heating pipe. The first heating pipe is connected to the bottom of the deodorization component, and the second heating pipe is connected to a first air collecting cylinder and a second air collecting cylinder, respectively.

[0017] Preferably, the deodorization component includes a deodorization tank fixed inside the bracket, an anti-accumulation stirring component disposed inside the deodorization tank, and a first servo motor centrally fixed at the bottom of the deodorization tank.

[0018] Preferably, the anti-accumulation mixing assembly includes a central vertical shaft, a material distribution component, a mixing plate and a rotating drum arranged sequentially from top to bottom on the central vertical shaft, a cross-shaped reinforcement component sleeved on the central vertical shaft, a lifting vertical rod fixed at the end of the cross-shaped reinforcement component, a material-pushing piece fixed on the outer side between the lifting vertical rods, a material-pushing component movably arranged on the cross-shaped reinforcement component, and a spiral pushing assembly driven by the material-pushing component.

[0019] The bottom outer wall of the sliding rod is provided with an air inlet groove, and the surface of the sliding rod is also provided with a jet hole that communicates with the air inlet groove.

[0020] Preferably, the material distribution component includes a material distribution disc fixed on the upper part of the middle vertical shaft, triangular plates evenly distributed at the upper end of the material distribution disc, and a third spiral blade that extends into the second connecting pipe and is fixed at the top of the middle vertical shaft.

[0021] Preferably, the cross-shaped reinforcement includes a sleeve that is sleeved on the middle vertical shaft, a connecting plate fixed between the sleeve and the corresponding lifting vertical rod, and protrusions symmetrically fixed on both sides of the outer end of the connecting plate.

[0022] An installation groove is provided on the outer wall of the protrusion;

[0023] The material feeding component includes a turntable movably connected to the mounting groove by a short shaft and a material feeding plate fixed to the side of the turntable by a convex plate;

[0024] The spiral feeding assembly includes a gear movably connected to the mounting groove by a long shaft, and a spiral feeding blade fixed after the long shaft extends out of the mounting groove.

[0025] The gear meshes with the teeth on the side of the turntable.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] Hot air is introduced through the sliding rod of the anti-accumulation stirring component: the hot air from the heating component is sent into the cavity at the bottom of the deodorizing tank through the first heating pipe, and enters the jet hole through the air inlet groove of the sliding rod, and is sprayed directly out from inside the raw material, avoiding the problem of hot air being blocked by the accumulated raw material when it enters from the bottom of the tank in traditional devices.

[0028] Multi-dimensional jet design: The sliding rod moves up and down with the lifting vertical rod, and the jet holes form a dynamic jet path in the raw material layer, ensuring that hot air penetrates the entire raw material pile evenly and significantly improving the efficiency of odor removal.

[0029] The anti-accumulation mixing assembly integrates a material distribution unit, a mixing plate, a material feeding plate, and a spiral pusher assembly to achieve a synergistic effect of "dispersion-turning-pushing-loosening": the material distribution plate and triangular plate initially disperse the falling raw materials to avoid initial accumulation; the mixing plate radially turns the raw materials to break up surface clumps; the lifting vertical rod drives the material feeding plate to move up and down, loosening the raw materials axially and reducing the material's bulk density; the spiral pusher, through gear meshing with the turntable, pushes the raw materials in both directions as the lifting vertical rod moves up and down, ensuring that the raw materials are in a loose state; the coordinated movement of the multiple components of the anti-accumulation mixing assembly keeps the raw materials in a dynamically loose state, and with the dynamic air jet of the sliding rod, a closed-loop process of "hot air penetration-raw material turning-odor release" is formed, where the raw materials are in a loose state and fully contact the hot air, and the odor can be quickly carried away by the hot air. Attached Figure Description

[0030] Figure 1 This is a first three-dimensional structural diagram of the entire invention;

[0031] Figure 2 This is a second three-dimensional structural diagram of the entire invention;

[0032] Figure 3 This is a cross-sectional structural diagram of the drying component, fermentation component, and deodorization component of the present invention;

[0033] Figure 4 This is a cross-sectional view of the deodorization component of the present invention;

[0034] Figure 5 This is a three-dimensional structural diagram of the connection between the central vertical shaft, the material distribution component, the stirring plate, and the rotating drum of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of the cross-shaped reinforcement and the lifting vertical rod fixing of the present invention;

[0036] Figure 7 A three-dimensional structural diagram of the cross-shaped reinforcement, lifting vertical rod, material feeding component, and spiral pushing assembly of the present invention;

[0037] Figure 8 This is a schematic diagram of the connection between the feeding component and the spiral feeding assembly of the present invention;

[0038] Figure 9 This is a cross-sectional structural diagram showing the connection between the feeding component, the spiral feeding assembly, and the protrusion seat of the present invention.

[0039] Figure 10 This is a three-dimensional structural diagram of the anti-accumulation stirring component after the lifting vertical rod of the present invention moves downward;

[0040] Figure 11 This is a three-dimensional structural diagram of the anti-accumulation stirring component after the lifting vertical rod of the present invention moves upward.

[0041] In the diagram: 1. Photovoltaic panel; 2. Air heater; 3. First heating pipe; 4. Second heating pipe; 5. Feeding hopper; 6. Feeding pipe; 61. Discharge pipe; 7. Fourth servo motor; 8. Receiving funnel; 9. Drying cylinder; 10. Fermentation cylinder; 11. Deodorizing tank; 111. Discharge gate; 112. Cavity; 113. Partition; 12. Support; 13. First gas collecting cylinder; 14. Second gas collecting cylinder; 15. First connecting pipe; 16. Second connecting pipe; 17. Second servo motor; 18. Third servo motor; 19. Drying shaft; 20. First spiral blade; 21. Fermentation shaft; 22. Spray hole; 23. Second spiral blade; 24. First servo motor; 25. Anti-accumulation stirring assembly. ; 2501, Third spiral blade; 2502, Distributor plate; 2503, Triangular plate; 2504, Mixing plate; 2505, Middle vertical shaft; 2506, Rotary drum; 2507, Corrugated slot; 2508, Lifting vertical rod; 2509, Material pusher; 2510, Sleeve; 2511, Connecting plate; 2512, Protrusion seat; 2513, Mounting groove; 2514, Air jet hole; 2515, Air inlet groove; 2516, Sliding rod; 2517, Limiting ball head; 2518, End cap; 2519, Spiral pusher; 2520, Material pusher plate; 2521, Long shaft; 2522, Gear; 2523, Turntable; 2524, Convex plate; 2525, Short shaft; 2526, Tooth. Detailed Implementation

[0042] 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.

[0043] Example:

[0044] Please see Figure 1-11 The present invention provides a technical solution:

[0045] A sub-low temperature stable cow manure fermentation cow bedding material device includes a support frame 12, a heating component and a feeding component. The support frame 12 is provided with a drying component, a fermentation component and a deodorization component from top to bottom. The drying component and the fermentation component are connected by a first connecting pipe 15, and the fermentation component and the deodorization component are connected by a second connecting pipe 16.

[0046] The drying assembly includes a drying cylinder 9 fixed inside the support 12, a drying shaft 19 disposed inside the drying cylinder 9, and a first spiral blade 20 fixedly disposed on the drying shaft 19;

[0047] The drying cylinder 9 is fixed with a second servo motor 17 and a first air collecting cylinder 13 at both ends. One end of the drying shaft 19 is fixed to the output end of the second servo motor 17, and the other end of the drying shaft 19 extends into the first air collecting cylinder 13, so that the spray hole 22 on the surface of the drying shaft 19 is connected to the first air collecting cylinder 13 through the channel inside the drying shaft 19.

[0048] The second servo motor 17 is controlled by the PLC. The second servo motor 17 drives the drying shaft 19 and the first spiral blade 20 to rotate, thereby stirring the raw materials in the drying cylinder 9 so that the raw materials can be dried evenly after the hot air is sprayed into the drying cylinder 9 through the spray holes 22 on the surface of the drying shaft 19.

[0049] The fermentation assembly includes a fermentation cylinder 10 fixed inside the support 12, a fermentation shaft 21 disposed inside the fermentation cylinder 10, and a second spiral blade 23 disposed on the fermentation shaft 21.

[0050] The fermentation cylinder 10 is fixed with a third servo motor 18 and a second gas collecting cylinder 14 at both ends. One end of the fermentation shaft 21 is fixed to the output end of the third servo motor 18, and the other end of the fermentation shaft 21 extends into the second gas collecting cylinder 14, so that the ejection hole 22 on the surface of the fermentation shaft 21 is connected to the second gas collecting cylinder 14 through the channel inside the fermentation shaft 21.

[0051] The third servo motor 18 is controlled by a PLC. The third servo motor 18 drives the fermentation shaft 21 and the second spiral blade 23 to rotate, thereby stirring the raw materials in the fermentation cylinder 10. This allows the raw materials to be heated evenly after hot air is ejected into the fermentation cylinder 10 through the nozzles 22 on the surface of the fermentation shaft 21. The temperature is then rapidly increased to the appropriate temperature for the fermentation bacteria, and the dried cow manure is efficiently transformed into high-quality cow bedding material through bacterial fermentation.

[0052] The drying cylinder 9 and the fermentation cylinder 10 are connected by a first connecting pipe 15. The first connecting pipe 15 is equipped with a first electric valve controlled by a PLC. When the first electric valve is opened, the raw material in the drying cylinder 9 enters the fermentation cylinder 10.

[0053] The feeding assembly is used to transport the raw materials after solid-liquid separation into the drying assembly;

[0054] The feeding assembly includes a feeding hopper 5, a feeding pipe 6 connected to the bottom side of the feeding hopper 5, a feeding auger built into the feeding pipe 6, and a fourth servo motor 7 fixed at the top of the feeding pipe 6 for driving the feeding auger to rotate.

[0055] The upper part of the feeding pipe 6 is provided with a discharge pipe 61, which is located above the receiving funnel 8 at the top of the drying cylinder 9.

[0056] The fourth servo motor 7 is controlled by a PLC. The fourth servo motor 7 drives the feeding auger to rotate, which transmits the cow manure raw material in the feeding hopper 5 to the discharge pipe 61 through the feeding pipe 6, and then falls into the receiving funnel 8 through the discharge pipe 61, and finally enters the receiving funnel 8.

[0057] The heating unit is used to supply hot air to the drying and fermentation units to achieve the drying and fermentation of raw materials;

[0058] The heating component includes an air heater 2 and a photovoltaic power generation panel 1 that provides power to the air heater 2. The air outlet of the air heater 2 is connected to a first heating pipe 3 and a second heating pipe 4. The first heating pipe 3 is connected to the bottom of the deodorization component, and the second heating pipe 4 is connected to the first air collecting cylinder 13 and the second air collecting cylinder 14 respectively.

[0059] The air heater 2 is equipped with an electric heating wire and a temperature detector. The temperature detector is used to detect the temperature of the air heated by the electric heating wire so that hot air at a suitable temperature can be introduced into the drying cylinder 9, the fermentation cylinder 10 and the deodorizing tank 11 respectively.

[0060] The anti-accumulation stirring component 25 built into the deodorization component stirs the fermented raw materials under the drive of the first servo motor 24. At the same time, the heating component introduces hot air into the deodorization component through the anti-accumulation stirring component 25 to achieve full contact between the hot air and the raw materials until the hot air carries away the odor in the raw materials and achieves deodorization.

[0061] The deodorization assembly includes a deodorization tank 11 fixed inside the bracket 12. The lower side of the deodorization tank 11 is provided with a discharge door 111. An anti-accumulation stirring assembly 25 is disposed inside the deodorization tank 11. The first servo motor 24 is fixed in the center at the bottom of the deodorization tank 11.

[0062] The first servo motor 24 is controlled by a PLC, and the first servo motor 24 drives the anti-accumulation stirring component 25 to rotate.

[0063] The lower part of the deodorizing canister 11 is formed by a partition 113 to create a cavity 112;

[0064] The anti-accumulation mixing assembly 25 includes a central vertical shaft 2505, a material distribution component, a mixing plate 2504 and a rotating drum 2506 arranged sequentially from top to bottom on the central vertical shaft 2505, a cross-shaped reinforcement component sleeved on the central vertical shaft 2505, a lifting vertical rod 2508 fixed at the end of the cross-shaped reinforcement component, a material-pushing piece 2509 fixed on the outer side between the lifting vertical rods 2508, and a material-pushing component movably arranged on the cross-shaped reinforcement component and a spiral pushing assembly driven by the material-pushing component.

[0065] The rotating drum 2506 of the anti-accumulation stirring assembly 25 is located inside the cavity 112. The rotating drum 2506 has a corrugated groove 2507 around the middle side. The bottom of the lifting vertical rod 2508 of the anti-accumulation stirring assembly 25 passes through the partition 113 and extends into the cavity 112, and is fixed with a sliding rod 2516. The sliding rod 2516 extends into the rotating drum 2506 through the corrugated groove 2507 and is fixed with a limiting ball head 2517.

[0066] The sliding rod 2516 has an air inlet groove 2515 on its bottom outer side wall, and an air jet hole 2514 communicating with the air inlet groove 2515 on its surface. The diameter of the air jet hole 2514 can be set according to the actual situation to avoid blockage caused by raw materials entering the air jet hole 2514.

[0067] The hot air from the heating component is sent into the cavity 112 at the bottom of the deodorizing tank 11 through the first heating pipe 3, and enters the jet hole 2514 through the air inlet groove 2515 of the sliding rod 2516. It is evenly sprayed into the raw material, and the hot air comes into uniform contact with the raw material, which fully removes the odor from the raw material.

[0068] Normally, the first heating pipe 3 is directly connected to the material storage chamber inside the deodorizing tank 11. The material will accumulate at the bottom of the storage chamber, blocking the connection between the first heating pipe 3 and the storage chamber, causing hot air to be unable to enter the storage chamber smoothly.

[0069] The method of filling the deodorizing tank 11 with hot air according to the present invention can prevent the hot air from being difficult to fill into the material storage chamber inside the deodorizing tank 11 due to the accumulation of raw materials.

[0070] The material distribution components include a material distribution plate 2502 fixed on the upper part of the middle vertical shaft 2505, triangular plates 2503 evenly distributed on the upper end of the material distribution plate 2502, and a third spiral blade 2501 that is fixed after the top of the middle vertical shaft 2505 extends into the interior of the second connecting pipe 16.

[0071] The cross-shaped reinforcement includes a sleeve 2510 that is sleeved on the middle vertical shaft 2505, a connecting plate 2511 fixed between the sleeve 2510 and the corresponding lifting vertical rod 2508, and protrusions 2512 symmetrically fixed on both sides of the outer end of the connecting plate 2511.

[0072] A mounting groove 2513 is provided on the outer wall of the protrusion 2512; the outer side of the mounting groove 2513 is protected and sealed by an end cap 2518.

[0073] The material feeding component includes a turntable 2523 movably connected to the mounting groove 2513 by a short shaft 2525, and a material feeding plate 2520 fixed to the side of the turntable 2523 by a protrusion plate 2524.

[0074] The spiral pusher assembly includes a gear 2522 movably connected to the mounting groove 2513 via a long shaft 2521, and a spiral pusher blade 2519 fixed after the long shaft 2521 extends out of the mounting groove 2513; the long shaft 2521 and the gear 2522 are fixedly connected, and the two ends of the long shaft 2521 respectively pass through the end cover 2518 and the protrusion seat 2512.

[0075] Gear 2522 meshes with the teeth 2526 on the side of turntable 2523.

[0076] Specifically, when using it:

[0077] 1. Raw material feeding: Automated conveying to the drying unit.

[0078] After solid-liquid separation, the cow dung raw material is conveyed to the drying drum 9 by the feeding assembly.

[0079] The operator puts the raw material into the feeding hopper 5, and the fourth servo motor 7 (controlled by PLC) drives the feeding auger to rotate. The raw material is conveyed upward along the feeding pipe 6, and falls into the receiving funnel 8 at the top of the drying cylinder 9 through the discharge pipe 61, and finally enters the drying cylinder 9.

[0080] The continuous feeding auger ensures that the raw materials are evenly fed into the drying components, avoiding the problems of material accumulation or interruption caused by manual feeding.

[0081] 2. Drying process: Hot air and stirring work together to achieve uniform dehydration.

[0082] The heating components provide hot air for the drying process:

[0083] Photovoltaic panel 1 supplies power to air heater 2. The electric heating wire of air heater 2 heats the air, and a temperature detector monitors the hot air temperature in real time (to meet drying requirements). The hot air is then sent to the first air collecting cylinder 13 via the second heating pipe 4. Figure 3 As shown, hot air enters through the channel at the left end of the drying shaft 19, and is then sprayed out through the spray holes 22 on the surface of the drying shaft 19 into the drying cylinder 9, thereby achieving uniform drying of the raw materials.

[0084] Raw material processing inside drying drum 9:

[0085] The second servo motor 17 (controlled by PLC) drives the drying shaft 19 and the first spiral blade 20 to rotate, stirring the raw materials; at the same time, the hot air in the first gas collecting cylinder 13 is evenly sprayed into the drying cylinder 9 through the internal channel of the drying shaft 19 and the spray hole 22 on its surface, making full contact with the raw materials being stirred, achieving rapid dehydration (the moisture content is reduced to 40-50%, meeting the requirements of subsequent fermentation).

[0086] 3. The dried raw materials enter the fermentation unit:

[0087] The PLC controls the opening of the first electric valve on the first connecting pipe 15, and the dried raw material falls into the fermentation tank 10 through the first connecting pipe 15.

[0088] In sub-low temperature environments, photovoltaic panel 1 supplies power to air heater 2, the electric heating wire of air heater 2 heats the air, and temperature detector monitors the hot air temperature in real time (to meet fermentation requirements).

[0089] The hot air from the heating component is sent into the second gas collection cylinder 14 through the second heating pipe 4, and then sprayed into the fermentation cylinder 10 through the spray hole 22 of the fermentation shaft 21, so that the temperature inside the cylinder is stable and adapted to the activity of the fermentation bacteria.

[0090] The third servo motor 18 (controlled by PLC) drives the fermentation shaft 21 and the second spiral blade 23 to rotate, continuously stirring the raw materials, realizing the homogeneous mixing of cow manure and inoculant, continuous oxygen supply and efficient heat and mass transfer, effectively preventing raw material clumping while completing the directional conveying of raw materials, thereby ensuring the stable and efficient operation of the aerobic fermentation process.

[0091] Ensure that hot air comes into uniform contact with the raw materials, and that the microbial community (such as actinomycetes and yeasts) efficiently decomposes the organic matter in the cow manure at a suitable temperature, transforming it into a loose and stable bedding substrate (shortening the fermentation cycle to 24-48 hours).

[0092] At the same time, a small amount of heat-resistant bacterial agent is added into the fermentation tank 10 to quickly establish and maintain a high-temperature environment of >55°C, so as to accelerate the decomposition of organic matter and achieve complete inactivation of pathogens.

[0093] 4. Deodorization treatment:

[0094] After fermentation, the raw materials enter the deodorization component:

[0095] After fermentation, the raw materials fall into the deodorizing tank 11 through the second connecting pipe 16. The third spiral blade 2501 rotates with the middle vertical shaft 2505, evenly distributing the raw materials into the deodorizing tank 11.

[0096] The raw materials continue to decompose in the deodorization tank 11. The rich humus in the raw materials efficiently captures ammonia through a combination of physical adsorption and chemical complexation. At the same time, the mesophilic nitrifying bacteria (such as Nitrosomonas and Nitrobacterium) enriched inside the raw materials gradually oxidize the adsorbed ammonia nitrogen into nitrite and nitrate, thus completing the biotransformation of ammonia.

[0097] By using the fermentation end product (composted bedding material) as the deodorization medium, no external packing material is needed, completely eliminating the packing material replacement cost of traditional biological filter towers.

[0098] Subsequently, the hot air from the heating component is sent through the first heating pipe 3 into the cavity 112 at the bottom of the deodorizing tank 11, and enters the jet hole 2514 through the air inlet groove 2515 of the sliding rod 2516, and is evenly sprayed into the raw material.

[0099] The sliding rod 2516 moves up and down with the lifting vertical rod 2508, and the jet hole 2514 forms a dynamic jet path in the raw material layer, ensuring that hot air penetrates the entire raw material pile evenly (the contact area is increased by more than 60% compared with the traditional method), which significantly improves the efficiency of odor removal.

[0100] The first servo motor 24 drives the anti-accumulation stirring component 25 to work:

[0101] The material distribution plate 2502 and the triangular plate 2503 initially disperse the raw materials, while the stirring plate 2504 turns the raw materials over.

[0102] When the drum 2506 rotates, the corrugated slot 2507 drives the sliding rod 2516 and the lifting vertical rod 2508 to move up and down, and the material-pushing plate 2509 pushes the raw material up and down to avoid accumulation.

[0103] When the lifting vertical rod 2508 moves the cross-shaped reinforcement member downwards, the material-pushing plate 2520 on the cross-shaped reinforcement member rotates upwards under the resistance of the raw material. Figure 10 In the state shown, the teeth 2526 mesh with the drive gear 2522, which drives the spiral pusher 2519 to rotate, pushing the raw material at the edge towards the center, ensuring that the hot air is in full contact with the raw material and removing the remaining odor (deodorization rate ≥90%).

[0104] When the lifting vertical rod 2508 moves the cross-shaped reinforcement member upward, the material-pushing plate 2520 on the cross-shaped reinforcement member pushes the raw material upward. At the same time, the material-pushing plate 2520 rotates downward to... Figure 11 In the state shown, the teeth 2526 mesh with the drive gear 2522, which drives the spiral pusher 2519 to rotate, pushing the central raw material to the edge, ensuring that the hot air is in full contact with the raw material, and removing odors such as ammonia (deodorization rate ≥90%).

[0105] The top of the deodorizing tank 11 is connected to the odor adsorption tank through a gas guide pipe, so that the gas flowing to the top of the deodorizing tank 11 enters the odor adsorption tank through the gas guide pipe for deodorization again.

[0106] Final product: The processed raw material is discharged through discharge gate 111, which is high-quality cow mattress material.

[0107] In Inner Mongolia, the main technologies for recycled cow dung bedding materials employ natural fermentation and constant-temperature heating fermentation. Natural fermentation, which involves solid-liquid separation followed by stacking fermentation, is simple and low-cost, but suffers from challenges such as difficulty in temperature control and low efficiency. While some progress has been made through improvements such as adding high-temperature microbial agents and biological drying, challenges remain, including the inability to continuously feed and discharge materials and long production cycles. Particularly in the Northwest during autumn and winter (≤10℃), under sub-low temperature conditions, field measurements show that low temperatures significantly reduce microbial activity, decreasing fermentation efficiency by more than 40%, severely impacting production stability.

[0108] This invention addresses the issue of high moisture content in cow manure after solid-liquid separation by adding a drying component between the separation and fermentation stages. Hot air penetrates the cow manure raw material evenly, achieving rapid dehydration to a moisture content of 50-60% (the optimal range for fermentation). This eliminates the inhibition of subsequent fermentation caused by high moisture content (such as hindered oxygen diffusion and slow temperature rise), effectively solving the problem of prolonged fermentation cycles caused by high moisture content materials. Especially in winter, it can effectively handle residual ice crystals after squeezing and dehydration, preventing abnormal increases in the moisture content of the feed material, thereby significantly alleviating the challenge of prolonged fermentation cycles caused by this.

[0109] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sub-low temperature stable cow manure fermentation cow bedding material device, comprising a support frame, a heating component, and a feeding component, characterized in that: The support frame is provided with a drying component, a fermentation component and a deodorization component from top to bottom. The drying component and the fermentation component are connected by a first connecting pipe, and the fermentation component and the deodorization component are connected by a second connecting pipe. The feeding assembly is used to transport the raw materials after solid-liquid separation to the drying assembly, and the heating assembly is used to provide hot air to the drying assembly and the fermentation assembly to achieve the drying and fermentation of the raw materials. The deodorization component has an anti-accumulation stirring component built in it. Driven by the first servo motor, the component stirs the fermented raw materials. At the same time, the heating component introduces hot air into the deodorization component through the anti-accumulation stirring component to achieve full contact between the hot air and the raw materials until the hot air carries away the odor from the raw materials, thus achieving deodorization. The lower part of the deodorizing tank is formed by a partition to create a cavity. The rotating drum of the anti-accumulation stirring assembly is located inside the cavity. A corrugated groove is provided around the middle side of the rotating drum. The bottom of the lifting vertical rod of the anti-accumulation stirring assembly extends through the partition into the cavity and is fixed with a sliding rod. The sliding rod extends into the rotating drum through the corrugated groove and is fixed with a limiting ball head. The deodorization assembly includes a deodorization tank fixed inside the bracket, an anti-accumulation stirring assembly disposed inside the deodorization tank, and a first servo motor fixed in the center at the bottom of the deodorization tank; The anti-accumulation mixing assembly includes a central vertical shaft, a material distribution component, a mixing plate and a rotating drum arranged sequentially from top to bottom on the central vertical shaft, a cross-shaped reinforcement component sleeved on the central vertical shaft, a lifting vertical rod fixed at the end of the cross-shaped reinforcement component, a material-pushing piece fixed on the outer side between the lifting vertical rods, a material-pushing component movably arranged on the cross-shaped reinforcement component, and a spiral pushing assembly driven by the material-pushing component. The bottom outer wall of the sliding rod is provided with an air inlet groove, and the surface of the sliding rod is also provided with a jet hole that communicates with the air inlet groove. The cross-shaped reinforcement includes a sleeve that is fitted onto the middle vertical shaft from top to bottom, a connecting plate that is fixed between the sleeve and the corresponding lifting vertical rod, and protrusions that are symmetrically fixed on both sides of the outer end of the connecting plate. The outer wall of the protrusion is provided with a mounting groove; The material feeding component includes a turntable movably connected to the mounting groove by a short shaft and a material feeding plate fixed to the side of the turntable by a convex plate; The spiral pusher assembly includes a gear movably connected to the mounting groove by a long shaft, and a spiral pusher blade fixed after the long shaft extends out of the mounting groove. The gear meshes with the teeth on the side of the turntable.

2. The sub-low temperature stable cow manure fermentation cow bedding material device according to claim 1, characterized in that: The drying assembly includes a drying cylinder fixed inside the support, a drying shaft disposed inside the drying cylinder, and a first spiral blade disposed on the drying shaft. The drying cylinder is fixed with a second servo motor and a first air collecting cylinder at both ends. One end of the drying shaft is fixed to the output end of the second servo motor, and the other end of the drying shaft extends into the first air collecting cylinder, so that the spray holes on the surface of the drying shaft are connected to the first air collecting cylinder through the channel inside the drying shaft. The fermentation assembly includes a fermentation cylinder fixed inside a support, a fermentation shaft inside the fermentation cylinder, and a second spiral blade on the fermentation shaft. The fermentation cylinder is fixed with a third servo motor and a second gas collecting cylinder at both ends. One end of the fermentation shaft is fixed to the output end of the third servo motor, and the other end of the fermentation shaft extends into the second gas collecting cylinder, so that the ejection holes on the surface of the fermentation shaft are connected to the second gas collecting cylinder through the internal channel of the fermentation shaft.

3. The sub-low temperature stable cow manure fermentation cow bedding material device according to claim 2, characterized in that: The feeding assembly includes a feeding hopper, a feeding pipe connected to the bottom side of the feeding hopper, a feeding auger built into the feeding pipe, and a fourth servo motor fixed at the top of the feeding pipe for driving the feeding auger to rotate. The upper part of the feeding pipe is provided with a discharge pipe, which is located above the receiving funnel at the top of the drying cylinder.

4. The sub-low temperature stable cow manure fermentation cow bedding material device according to claim 2, characterized in that: The heating component includes an air heater and a photovoltaic power generation panel that provides power to the air heater. The air outlet of the air heater is connected to a first heating pipe and a second heating pipe. The first heating pipe is connected to the bottom of the deodorization component, and the second heating pipe is connected to a first air collecting cylinder and a second air collecting cylinder, respectively.

5. The sub-low temperature stable cow manure fermentation cow bedding material device according to claim 1, characterized in that: The material distribution component includes a material distribution plate fixed on the upper part of the middle vertical shaft, triangular plates evenly distributed at the upper end of the material distribution plate, and a third spiral blade that extends into the second connecting pipe and is fixed at the top of the middle vertical shaft.

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