Carbon-based charcoal straw feed capsule granules and a method for making the same

Abstract

The application relates to the technical field of feed, in particular to a carbon-based carbon-straw feed capsule particle and a manufacturing method thereof. The carbon-based carbon-straw feed capsule particle comprises a capsule inner container, the outer side of the capsule inner container is wrapped with a capsule shell, the capsule inner container comprises an expanded-straw layer and a carbonized layer, the expanded-straw layer comprises expanded and crushed straw particles, the carbonized layer comprises carbonized straw, and the carbonized layer is wrapped on the outer side of the expanded-straw layer, so that the straw feed is easier to be absorbed, stored and transported.

Description

Technical Field

[0001] This application relates to the field of feed technology, specifically to a carbon-based charcoal straw feed capsule pellet and its manufacturing method. Background Technology

[0002] Straw, a major byproduct of agricultural production, is produced in huge quantities. However, its effective utilization rate is currently low, with most straw being directly burned or carelessly discarded. Direct burning of straw not only results in a huge waste of resources but also produces large amounts of smoke and harmful gases such as carbon dioxide, sulfur dioxide, and nitrogen oxides, severely polluting the atmosphere and affecting air quality and human health. Therefore, people are recycling straw by processing it into animal feed.

[0003] However, traditional straw feed processing technologies include physical treatments such as crushing and kneading, chemical treatments, and biological treatments such as fermentation. However, existing straw processing methods suffer from drawbacks such as low nutritional levels, poor palatability, high processing costs, limited storage and transportation, and susceptibility to spoilage, and are only suitable for ruminants.

[0004] Therefore, developing a type of straw feed pellet that is highly nutritious, palatable, has low processing costs, and is easy to store and transport is of great practical significance and application value. Summary of the Invention

[0005] To make straw feed easier to absorb, store, and transport, a carbon-based charcoal straw feed capsule pellet is provided, including a capsule inner liner, with a capsule shell wrapped around the outer side of the capsule inner liner. The capsule inner liner includes an expanded straw layer and a carbonized layer. The expanded straw layer includes expanded and crushed straw pellets, and the carbonized layer includes carbonized straw. The carbonized layer is wrapped around the outer side of the expanded straw layer.

[0006] The above technical solution involves puffing and crushing straw, making it easier for animals to absorb. Simultaneously, carbonizing the straw surface improves the palatability of the straw pellets, and the carbonized straw aids digestion, enhancing nutrient absorption. Encapsulating the straw pellets with a capsule effectively isolates them from oxygen, moisture, and acid / alkaline environments, allowing for controlled release of nutrients within the animal's digestive tract, improving utilization efficiency, and extending the shelf life of the straw pellets. The capsule also helps shape the straw pellets, facilitating transportation. Furthermore, the straw capsules can be used as fish feed; the capsule shell prevents the straw pellets from scattering and polluting the water, and the pellets float on the surface, making them easy for fish to eat.

[0007] Optionally, the capsule inner liner contains a nutritional additive.

[0008] By adding nutritional additives to straw pellets using the above technical solutions, different nutritional additives can be added according to the different nutritional needs of different animals, so as to make the animals' nutrition balanced. Fish meal, soybean meal, peanut meal and other protein additives can be used to provide animals with essential amino acids. Vitamin additives can be added to enhance the growth and development, immune function and reproductive system function of animals. Mineral additives such as calcium, phosphorus, iron, zinc and selenium can also be added, which are necessary to maintain the normal physiological functions of animals. In addition, some probiotics, enzyme preparations and other bioactive substances can be added to improve the intestinal health and digestive function of animals.

[0009] Optionally, a fermentation additive is provided in the puffed straw layer.

[0010] The above technical solution enables the puffed straw to ferment inside the capsule, enhancing the absorption of nutrients from the straw by animals.

[0011] Optionally, the capsule shell may be made of gelatin.

[0012] Through the above technical solutions, gelatin has good biocompatibility and no toxic side effects in animal husbandry. It is dense, water- and oxygen-proof in a dry environment at room temperature, effectively extending the shelf life of feed. After entering the animal's stomach and intestines, it can quickly dissolve and release the internal straw carbon-based nutrient core without forming an indigestible outer shell residue. It is suitable for the digestive tract physiological environment of various farmed animals such as livestock, poultry, and fish, and has a low production cost.

[0013] Optionally, this application also discloses a method for producing carbon-based charcoal straw feed capsule pellets, characterized by comprising the following steps:

[0014] S1. Pre-treat the straw to remove impurities from the straw surface, divide the straw into straws with a length of 2-5cm, and pre-treat the capsule shell material.

[0015] S2. The pretreated straw is puffed, and then cooled after puffing.

[0016] S3. The puffed straw is crushed to achieve a particle size of 0.5-2mm.

[0017] S4. Extrude and granulate the crushed particles to form straw pellets with a diameter of 2-5mm;

[0018] S5. Carbonize the surface of straw pellets and cool them to form a capsule liner;

[0019] S6. Spray capsule shell material evenly onto the outside of the capsule inner liner, and form the capsule shell after drying.

[0020] Through the above technical solution, the integrated process of segmented crushing of straw, temperature-controlled puffing, low-temperature carbonization of the surface layer, and coating with gelatin capsules breaks down the dense structure of straw fibers during puffing, forms an adsorption carrier through surface carbonization, and locks in nutrients through the outer coating. The low-temperature processing throughout the process does not damage probiotics, heat-sensitive active substances such as vitamins, and the finished product has uniform particle size and moderate hardness. It is not easy to pulverize during storage and transportation, does not cloud water when used for aquatic feeding, and fully utilizes straw raw materials, reducing pollution from burning.

[0021] Optionally, in step S1, after pretreating the straw, nutritional additives are formulated.

[0022] Through the above technical solutions, different additives are formulated according to different animals, making the additives more suitable for animals and enhancing their physical condition.

[0023] Optionally, the method for straw puffing treatment in step S2 is as follows:

[0024] The pretreated straw is placed into an extruder, and the extrusion temperature is controlled at 120-180℃, the pressure at 2-5MPa, and the screw speed at 100-300r / min. Then, the extruded straw is cooled by air cooling or water cooling.

[0025] Through the above technical solution, under high temperature, high pressure and the shearing action of the screw, the cell wall structure of the straw is destroyed, the starch gelatinizes, the protein denatures, and the water evaporates rapidly, causing the straw to expand in volume and form a porous structure.

[0026] Optionally, the carbonization method in S5 is as follows:

[0027] The prepared straw pellets are fed into the carbonization device, and the flame jetting system is activated at the same time to spray the flame evenly onto the surface of the straw pellets. The flame temperature is controlled at 400-600℃ and maintained for 1-5 minutes. Then, the carbonized straw pellets are cooled by spiral separation air cooling to solidify the carbonized layer.

[0028] Through the above technical solution, high temperature will rapidly carbonize the surface of straw pellets, forming a dense carbonized layer, which improves the palatability of straw pellets. After heating for 1-5 minutes, rapid cooling is performed to prevent carbonization inside the straw pellets. Carbonized straw is easier for animals to digest and improves the absorption of nutrients in the straw.

[0029] Optionally, after the straw pellets are carbonized, a twin-screw mixer is used to mix the carbonized straw pellets with nutrient additives. The amount of nutrient additives added is 10%-30% of the mass of the straw pellets, and the mixing time is 30-60 minutes. During the mixing process, water is added to improve the fluidity and uniformity of the mixture.

[0030] Through the above technical solution, 10%-30% of the nutrient additive is mixed with an appropriate amount of water to improve the uniformity of the bonding between the carbonized straw and the additive. The water provides a basic water environment for the fermentation of probiotics. After 30-60 minutes of low-speed stirring, there is no particle breakage. The pores of the carbon layer fully adsorb various nutrients, ensuring that the nutrient composition of each grain of feed is uniformly distributed.

[0031] Optionally, the method for spraying the capsule shell is as follows:

[0032] The capsule shell material is atomized into droplets by an atomizing device, while the capsule inner liner is continuously moved by a conveyor belt or rotating device, so that the capsule shell evenly covers the surface of the capsule inner liner, and hot air is introduced to dry the capsule shell.

[0033] Through the above technical solution, the atomized droplets evenly cover the surface of the capsule inner liner, and then the dissolved capsule shell is heated to become solid and wraps around the surface of the capsule inner liner.

[0034] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0035] 1. By puffing and crushing straw, the straw becomes easier for animals to absorb. At the same time, carbonizing the surface of the straw improves the palatability of the straw pellets. The carbonized straw also aids in animal digestion and enhances the absorption of nutrients in the straw. The straw pellets are encapsulated, which effectively isolates oxygen, moisture, and acidic or alkaline environments, allowing for the controlled release of nutrients in the animal's digestive tract, improving utilization efficiency, increasing the shelf life of the straw pellets, and the capsule shell helps to shape the straw pellets for easy transportation.

[0036] 2. By adding nutritional additives to straw pellets, different nutritional additives can be added according to the different nutritional needs of different animals to make their nutrition balanced. Fish meal, soybean meal, peanut meal and other protein additives can be used to provide animals with essential amino acids. Vitamin additives can be added to enhance the growth and development, immune function and reproductive system function of animals. In addition, some probiotics, enzyme preparations and other bioactive substances can be added to improve the intestinal health and digestive function of animals.

[0037] 3. By adding fermentation additives, the puffed straw ferments inside the capsule, enhancing the absorption of nutrients from the straw by animals. Attached Figure Description

[0038] The accompanying drawings, which are provided to further illustrate embodiments of the invention and constitute a part of this invention, are not intended to limit the scope of the invention.

[0039] Figure 1 This is a schematic diagram of the straw feed capsule structure of this application;

[0040] Figure 2 This is a schematic diagram of the overall structure of this application;

[0041] Figure 3 This is a cross-sectional view of the internal structure of the carbonized shell of this application;

[0042] Figure 4 This application is intended to emphasize the structural diagram of the metal cage section;

[0043] Figure 5 This is a partial sectional view of the sprayed structure in this application;

[0044] Figure 6 This application is intended to emphasize a partial structural cross-section of the spraying conveyor belt;

[0045] Figure 7 This application is intended to emphasize another perspective of the sprayed structure.

[0046] The components are as follows: 1. Extrusion structure; 2. Granulation structure; 3. Carbonization structure; 31. Outer shell; 32. Metal cage; 321. Guide plate; 33. Flame-spraying structure; 4. Spraying structure; 41. Spraying area; 411. Atomizing nozzle; 42. Drying area; 5. Spiral feeding device; 6. Drying structure; 61. Drying pipe; 62. Drying fan; 7. Mixing and stirring structure; 8. Spraying conveyor belt; 81. Support net; 82. Guide channel; 83. Recycling pool; 84. Cleaning scraper; 9. Capsule inner liner; 91. Extruded straw layer; 92. Carbonization layer; 10. Capsule shell. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0049] Example 1

[0050] Reference Figure 1A carbon-based charcoal straw feed capsule pellet includes a capsule inner liner 9, and a capsule shell 10 wrapped around the outer side of the capsule inner liner 9. The capsule inner liner 9 includes an expanded straw layer 91 and a carbonized layer 92. The expanded straw layer 91 includes expanded and crushed straw pellets, and the carbonized layer 92 includes carbonized straw. The carbonized layer 92 is wrapped around the outer side of the expanded straw layer 91. The straw is puffed and crushed to make it easier for animals to absorb. Simultaneously, the surface of the straw is carbonized, improving the palatability of the straw pellets. The carbonized straw also aids digestion and enhances the absorption of nutrients. A capsule shell 10 is then wrapped around the straw pellets, effectively isolating them from oxygen, moisture, and acidic / alkaline environments. This allows for controlled release of nutrients within the animal's digestive tract, improving utilization efficiency and extending the shelf life of the straw pellets. The capsule shell 10 also helps shape the straw pellets, facilitating transportation. Furthermore, the straw capsules can be used as fish feed. The capsule shell 10 prevents the straw pellets from scattering and polluting the water, and the pellets float on the surface, making them easy for fish to eat.

[0051] The inner liner of the capsule contains nutritional additives. These additives, placed within the straw pellets, can be tailored to the specific nutritional needs of different animals, ensuring a balanced diet. Fish meal, soybean meal, and peanut meal can be used as protein additives to provide essential amino acids. Vitamin additives enhance growth, development, immune function, and reproductive system function. Mineral additives such as calcium, phosphorus, iron, zinc, and selenium are also necessary for maintaining normal physiological functions. Furthermore, probiotics and enzyme preparations can be added to improve gut health and digestive function.

[0052] Fermentation additives are placed inside the puffed straw layer 91 to ferment the puffed straw inside the capsule, thereby enhancing the absorption of nutrients from the straw by animals.

[0053] The capsule shell 10 is made of gelatin, which has good biocompatibility and no toxic side effects in animal husbandry. It is dense and waterproof under normal temperature and dry conditions, effectively extending the shelf life of the feed. After entering the animal's stomach and intestines, it can quickly dissolve and release the internal straw carbon-based nutrient core without forming indigestible shell residue 31. It is suitable for the digestive tract physiological environment of various farmed animals such as livestock, poultry, and fish, and has a low production cost.

[0054] Example 2

[0055] Reference Figure 2This embodiment discloses a production system for straw feed capsule pellets, including an extrusion structure 1, a granulation structure 2, a carbonization structure 3, and a spraying structure 4. These structures are connected sequentially. The extrusion structure 1 includes a gas explosion breaking device, and the granulation structure 2 includes a screw extrusion granulation device. A screw feeding device 5 is provided between the gas explosion breaking device and the screw extrusion granulation device. The outlet of the gas explosion breaking device is connected to the inlet of the screw feeding device 5, and the screw extrusion granulation device is connected to the outlet of the screw feeding device 5. Cut straw enters the extrusion structure 1, where it is extruded. The extruded straw then enters the granulation structure 2 through the screw feeding device 5 to form straw pellets. The surface of the straw pellets is then carbonized by the carbonization structure 3. After cooling, a capsule shell 10 is sprayed onto the surface of the straw pellets to form straw feed capsule pellets. The entire process is automated and continuous, eliminating the need for manual handling of semi-finished products and enabling the smooth production of straw feed capsule pellets.

[0056] The spraying structure 4 is connected to the drying structure 6. The drying structure 6 allows the water in the capsule shell 10 solution to evaporate rapidly, thereby causing the remaining gelatin to solidify quickly and coat the surface of the straw pellets to form the capsule shell 10, which greatly improves the pellet forming rate and storage stability of the finished product.

[0057] Reference Figure 3 The carbonized structure 3 includes an outer shell 31, inside which is a metal cage 32. A flame-spraying structure 33 is located below the metal cage 32. The metal cage 32 is rotatably connected to the inside of the outer shell 31 and is connected to a drive structure that rotates the metal cage 32. The flame-spraying structure 33 heats the straw particles inside the metal cage 32, while the drive structure simultaneously rotates the metal cage 32, causing the straw particles inside to tumble, resulting in more uniform heating of the straw particles and a more uniform thickness of the carbonized layer 92 on the surface.

[0058] Reference Figure 4 The metal cage 32 is cylindrical, and a guide plate 321 is provided on the inner surface of the metal cage 32. The guide plate 321 is spiral-shaped. The guide plate 321 allows the straw particles to move along the guide plate 321 during the turning process. That is, the straw particles move from the inlet to the outlet of the metal cage 32 during the turning process, eliminating the need for additional transportation structures. At the same time, the guide plate 321 can stir the straw particles, making the straw particles heat more evenly.

[0059] A mixing and stirring structure 7 is provided on the side of the carbonization structure 3 facing away from the granulation structure 2. The mixing and stirring structure 7 is equipped with an additive inlet. After carbonization, the carbonized straw particles enter the mixing structure, where nutrient additives are added to mix with the mixing structure.

[0060] Reference Figure 5The spraying structure 4 includes a spraying area 41 and a drying area 42. An atomizing nozzle 411 is installed in the spraying area 41, and the atomizing nozzle 411 is connected to a solution supply structure. A spraying conveyor belt 8 is installed below the atomizing nozzle 411. The drying structure 6 connects to the interior of the drying area 42. The atomizing nozzle 411 evenly sprays the capsule shell 10 solution onto the surface of the straw pellets. Atomization makes the solution more evenly dispersed. The spraying conveyor belt 8 transports the sprayed straw pellets to the drying area 42. The drying structure 6 evaporates the moisture in the capsule shell 10 solution, causing the capsule shell 10 to solidify on the surface of the straw pellets.

[0061] Reference Figure 6 The surface of the spraying conveyor belt 8 has multiple guide grooves 82 to guide the liquid to the edge of the conveyor belt. A support net 81 is provided on the surface of the conveyor belt, and the aperture of the support net 81 is smaller than the diameter of the straw particles. The support net 81 intercepts the straw particles above, and excess capsule shell 10 solution passes through the support net 81 and enters the guide grooves 82. Subsequently, the capsule shell 10 solution falls along the guide grooves 82 on one side of the conveyor belt, preventing the capsule shell 10 solution from accumulating above the conveyor belt and affecting the spraying of capsule shell 10 on the surface of the straw particles.

[0062] Reference Figure 7 A recycling tank 83 is provided below the spraying area 41 and the drying area 42. The recycling tank 83 is connected to the solution supply structure through a pipe. Excess capsule shell 10 solution falls into the recycling tank 83 on the conveyor belt and is stored in the recycling tank 83. Then, the capsule shell 10 solution in the recycling tank 83 is re-sprayed through the solution supply structure to realize the recycling of capsule shell 10 solution.

[0063] A cleaning scraper 84 is provided on the lower surface of the spraying conveyor belt 8 for cleaning the surface of the conveyor belt. Some of the capsule shell 10 solution may stick to the surface of the conveyor belt after it has solidified. If it is not cleaned, the conveyor belt may not work properly. The cleaning scraper 84 is located below the conveyor belt so that the cleaning scraper 84 can clean the surface of the conveyor belt, avoid the accumulation of capsule shell 10 solution on the surface of the conveyor belt, and ensure the continuous permeability of the conveyor belt.

[0064] The drying structure 6 includes a drying pipe 61 and a drying fan 62. One end of the drying pipe 61 connects to the inside of the outer shell 31, and the other end connects to the top of the drying zone 42. The drying fan 62 is located at the connection between the drying zone 42 and the drying pipe 61. Hot air from the carbonized structure 3 enters the drying zone 42 along the drying pipe 61 and is blown onto the surface of the straw particles by the drying fan 62, accelerating the evaporation of the solution in the capsule shell 10, thus accelerating the formation of the capsule shell 10. No additional heat source is required, enabling the reuse of heat from the carbonized structure 3 and reducing energy consumption.

[0065] The specific implementation method of this embodiment is as follows: The cut straw enters the puffing structure 1, which puffs the straw. The puffed straw enters the granulation structure 2 through the screw feeding device 5 to form straw pellets. The flame structure 33 heats the straw pellets in the metal cage 32, and at the same time, the drive structure drives the metal cage 32 to rotate, causing the straw pellets in the metal cage 32 to tumble, so that the straw pellets are heated evenly and the thickness of the carbonized layer 92 on the surface is more uniform. At the same time, the guide plate 321 moves the straw pellets along the guide plate 321 during the tumbling process, that is, the straw pellets move from the inlet to the outlet of the metal cage 32 during the tumbling process, without the need for an additional transport structure. At the same time, the guide plate 321 can stir the straw pellets, so that the straw pellets are heated more evenly. After carbonization, the carbonized straw pellets enter the stirring structure, and nutrient additives are added to the stirring structure to mix the nutrient additives with the stirring structure. The straw pellets then enter the spraying structure 4, where the atomizing nozzle 411 evenly sprays the capsule shell 10 solution onto the surface of the straw pellets. Atomization ensures more uniform solution dispersion. The spraying conveyor belt 8 transports the sprayed straw pellets to the drying zone 42, where the drying structure 6 evaporates the moisture from the capsule shell 10 solution, solidifying the capsule shell 10 onto the surface of the straw pellets. Excess capsule shell 10 solution falls into the recycling tank 83 along the conveyor belt guide trough 82 and is stored there. The solution is then re-sprayed from the recycling tank 83 via the solution supply structure, achieving recycling of the capsule shell 10 solution. Subsequently, hot air from the carbonization structure 3 enters the drying zone 42 along the drying pipe 61 and is blown onto the surface of the straw pellets by the drying fan 62, accelerating the evaporation of the capsule shell 10 solution and thus accelerating the formation of the capsule shell 10. This eliminates the need for an additional heat source, allowing for the reuse of heat from the carbonization structure 3 and reducing energy consumption. This facilitates the smooth production of straw feed capsules.

[0066] Example 3

[0067] This application also discloses a method for manufacturing carbon-based charcoal straw feed capsule pellets, characterized by comprising the following steps:

[0068] S1. Pre-treat the straw to remove impurities from the straw surface, divide the straw into straws with a length of 2-5cm, and pre-treat the capsule shell 10 material.

[0069] S2. The pretreated straw is puffed, and then cooled after puffing.

[0070] S3. The puffed straw is crushed to achieve a particle size of 0.5-2mm.

[0071] S4. Extrude and granulate the crushed particles to form straw pellets with a diameter of 2-5mm;

[0072] S5. Carbonize the surface of the straw pellets and cool them to form the capsule inner liner 9;

[0073] S6. Spray the capsule shell 10 material evenly on the outside of the capsule inner liner 9, and after drying, the capsule shell 10 is formed.

[0074] The process integrates 10 steps: straw segmentation and crushing, temperature-controlled puffing, low-temperature surface carbonization, and gelatin capsule coating. Puffing breaks down the dense structure of straw fibers, surface carbonization forms an adsorption carrier, and the outer coating locks in nutrients. The low-temperature processing throughout the process does not damage probiotics, heat-sensitive active substances such as vitamins, and the finished product has uniform particle size and moderate hardness. It is not easy to pulverize during storage and transportation, and it does not cloud the water when used for aquatic feeding. The straw raw material is fully utilized as a resource, reducing pollution from burning.

[0075] Optionally, in step S1, after pretreating the straw, nutritional additives are formulated.

[0076] Different additives are formulated for different animals to make them more suitable for them and enhance their physical condition.

[0077] Optionally, the method for straw puffing treatment in step S2 is as follows:

[0078] The pretreated straw is placed into an extruder, and the extrusion temperature is controlled at 120-180℃, the pressure at 2-5MPa, and the screw speed at 100-300r / min. Then, the extruded straw is cooled by air cooling or water cooling.

[0079] Under high temperature, high pressure and the shearing action of the screw, the cell wall structure of the straw is destroyed, the starch gelatinizes, the protein denatures, and the water evaporates rapidly, causing the straw to expand in volume and form a porous structure.

[0080] Optionally, the carbonization method in S5 is as follows:

[0081] The prepared straw pellets are fed into the carbonization device, and the flame jetting system is activated at the same time to spray the flame evenly onto the surface of the straw pellets. The flame temperature is controlled at 400-600℃ and maintained for 1-5 minutes. Then, the carbonized straw pellets are cooled by spiral separation air cooling to solidify the carbonized layer.

[0082] High temperatures rapidly carbonize the surface of straw pellets, forming a dense carbonized layer that improves palatability. Rapid cooling after heating for 1-5 minutes prevents internal carbonization of the straw pellets. Carbonized straw aids in animal digestion and enhances the absorption of nutrients.

[0083] Optionally, carbonization in S5 can be performed using carbonization structure 3 from Example 2 to carbonize the straw pellets.

[0084] Optionally, after the straw pellets are carbonized, a twin-screw mixer is used to mix the carbonized straw pellets with nutrient additives. The amount of nutrient additives added is 10%-30% of the mass of the straw pellets, and the mixing time is 30-60 minutes. During the mixing process, water is added to improve the fluidity and uniformity of the mixture.

[0085] Mix 10%-30% of the nutrient additives with an appropriate amount of water to improve the uniformity of the adhesion between the carbonized straw and the additives. The water provides a basic water environment for the fermentation of probiotics. Stir at low speed for 30-60 minutes to prevent particle breakage. The pores of the carbon layer fully absorb various nutrients, ensuring that the nutrient composition of each feed grain is uniformly distributed.

[0086] Optionally, the method for spraying the capsule shell 10 is as follows:

[0087] The capsule shell 10 material is atomized into droplets by an atomizing device, while the capsule inner liner 9 is continuously moved by a conveyor belt or rotating device, so that the capsule shell 10 evenly covers the surface of the capsule inner liner 9, and hot air is introduced to dry the capsule shell 10.

[0088] The atomized droplets evenly cover the surface of the capsule inner liner 9, and then the dissolved capsule shell 10 is heated and becomes solid, wrapping around the surface of the capsule inner liner 9.

[0089] Optionally, in S6, the material of capsule shell 10 can be sprayed onto capsule shell 31 using the spraying structure 4 in Example 2.

[0090] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0091] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A carbon-based charcoal straw feed capsule pellet, characterized in that, It includes a capsule inner liner (9), and the capsule inner liner (9) is wrapped with a capsule shell (10). The capsule inner liner (9) includes an expanded straw layer (91) and a carbonized layer (92). The expanded straw layer (91) includes expanded and crushed straw particles, and the carbonized layer (92) includes carbonized straw. The carbonized layer (92) is wrapped around the outside of the expanded straw layer (91).

2. The carbon-based charcoal straw feed capsule pellets according to claim 1, characterized in that, The capsule inner liner (9) contains a nutritional additive.

3. The carbon-based charcoal straw feed capsule pellet according to claim 1, characterized in that, Fermentation additives are provided in the puffed straw layer (91).

4. The carbon-based charcoal straw feed capsule pellets according to claim 1, characterized in that, The capsule shell (10) is made of gelatin.

5. A method for producing carbon-based charcoal straw feed capsule pellets according to any one of claims 1-4, characterized in that, Includes the following steps: S1. Pre-treat the straw to remove impurities from the surface of the straw, divide the straw into straws with a length of 2-5cm, and pre-treat the capsule shell (10) material. S2. The pretreated straw is puffed, and then cooled after puffing. S3. The puffed straw is crushed to achieve a particle size of 0.5-2mm. S4. Extrude and granulate the crushed particles to form straw pellets with a diameter of 2-5mm; S5. Carbonize the surface of the straw pellets and cool them to form the capsule inner liner (9); S6. Spray the capsule shell (10) material evenly on the outside of the capsule inner liner (9) and dry it to form the capsule shell (10).

6. The method for producing carbon-based charcoal straw feed capsule pellets according to claim 5, characterized in that, In step S1, after the straw is pretreated, nutritional additives are formulated.

7. The method for producing carbon-based charcoal straw feed capsule pellets according to claim 5, characterized in that, The method for straw puffing treatment described in S2 is as follows: The pretreated straw is placed into an extruder, and the extrusion temperature is controlled at 120-180℃, the pressure at 2-5MPa, and the screw speed at 100-300r / min. Then, the extruded straw is cooled by air cooling or water cooling.

8. The method for producing carbon-based charcoal straw feed capsule pellets according to claim 5, characterized in that, The carbonization method in S5 is as follows: The prepared straw pellets are fed into the carbonization device, and the flame jet system is started at the same time. The flame temperature is controlled at 400-600℃ and maintained for 1-5 minutes. Then, the carbonized straw pellets are cooled by spiral separation air cooling to solidify the carbonization layer.

9. A method for producing carbon-based charcoal straw feed capsule pellets according to claim 5, characterized in that, After the straw pellets are carbonized, a twin-screw mixer is used to mix the carbonized straw pellets with nutrient additives. The amount of nutrient additives added is 10%-30% of the mass of the straw pellets. The mixing time is 30-60 minutes. During the mixing process, water is added to improve the fluidity and uniformity of the mixture.

10. A method for producing carbon-based charcoal straw feed capsule pellets according to claim 9, characterized in that, The method for spraying the capsule shell (10) is as follows: The capsule shell (10) material is atomized into droplets by an atomizing device, while the capsule inner liner (9) is continuously moved by a conveyor belt or rotating device, so that the capsule shell (10) evenly covers the surface of the capsule inner liner (9), and hot air is introduced to dry the capsule shell (10).

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