Process for recycling waste cowhide to prepare animal feed

Abstract

The present application relates to the field of animal feed processing, more particularly to a process for preparing animal feed from discarded cowhide. The process comprises the following steps: step one: cleaning, crushing and drying the discarded cowhide; step two: adding the crushed cowhide, main materials and auxiliary materials into a container structure for heating and mixing to prepare the animal feed; step three: extruding the mixed materials through an extrusion structure to form the animal feed; step four: cutting the extruded animal feed into granules through the rotation of a cutting frame; and step five: collecting the cut animal feed by a collection plate and two vortex plates, and dispersing and cooling the collected animal feed under rotation for sufficient collection. The sufficient collection of the animal feed processed from discarded cowhide prevents the adhesion between the granules.

Description

A process for recycling waste cowhides to prepare animal feed Technical Field

[0001] This invention relates to the field of animal feed processing, and more specifically to a process for recycling waste cowhides to prepare animal feed. Background Technology

[0002] During leather processing, a large amount of raw hides are transformed into finished leather, but some scraps and scraps that cannot be processed into leather become waste. For example, a fresh cowhide weighs about 20 kilograms, and the total amount of solid waste remaining after tanning, such as scraps, meat scraps, and hair, is about 7.75 kilograms. Waste cowhide decomposes naturally, producing a strong odor and causing environmental pollution, while also being a waste of the hide. Furthermore, with more and more people keeping pets, and most pets being fed commercial pet food, waste cowhide mainly consists of protein, collagen, fat, water, and minerals. Therefore, waste cowhide can be processed into animal feed for pets, effectively utilizing the waste. However, due to the collagen and fat in the hide, the prepared animal feed is prone to sticking together. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a process for recycling waste cowhide to prepare animal feed, which effectively collects and separates the processed animal feed from waste cowhide to prevent pellet adhesion.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A process for recycling waste cowhide to prepare animal feed includes a container structure for loading and mixing materials and a heating structure located in the middle of the container structure. The heating structure is equipped with a mixing structure for mixing the materials. The middle of the container structure is equipped with an extrusion structure for pushing the materials out for feeding. The lower part of the container structure is equipped with a cutting structure for cutting the extruded materials. The lower part of the cutting structure is equipped with a collection structure for collecting materials. The container structure includes a forming plate located at the lower part, and the forming plate is equipped with multiple extrusion holes. The cutting structure includes a cutting frame located below the forming plate, and the cutting frame is rotatable around its own axis. The collection structure includes a collection plate located below the cutting frame, and two vortex plates are fixedly connected to the collection plate. A collection pipe is fixedly connected to the middle of the collection plate.

[0006] Furthermore, the upper surface of the edge of the collecting plate is higher than the upper surface of the middle part, and the collecting pipe is located on the lower side of the middle part of the collecting plate.

[0007] Furthermore, the container structure also includes an upper plate, a central tube fixedly connected to the middle of the upper plate, an open tube provided at the upper part of the central tube, an outer frame connected to the lower part of the upper plate by threads, a forming plate fixedly connected to the outer frame, an inner convex plate fixedly connected to the inner edge of the forming plate, and a heating structure including two semi-arc frames fixedly connected to the inner convex plate, a semi-circular tube fixedly connected to each semi-arc frame, a heating cover threadedly connected to the two semi-circular tubes, two exchange tubes fixedly connected to the heating cover, and a through hole provided on the connecting surface of the two semi-arc frames.

[0008] Furthermore, the mixing structure includes a mixing frame rotatably connected to the outer walls of two semi-circular tubes, and multiple spiral blades are fixed to the outer walls of the mixing frame.

[0009] Furthermore, the extrusion structure includes a plurality of first cylinders fixedly connected to the upper plate, an extrusion frame fixedly connected to the cylinder rod of the plurality of first cylinders, a moving ring plate fixedly connected to the side of the extrusion frame near the axis, and a fixed ring plate slidably connected to the moving ring plate fixedly connected to the lower part of the upper plate.

[0010] Furthermore, the lower part of the extrusion frame is provided with protrusions that correspond one-to-one with the multiple extrusion holes.

[0011] Furthermore, the lower end face of the extrusion frame coincides with the upper end face of the forming plate.

[0012] Furthermore, the outer wall of the upper part of the plurality of helical blades is attached to the inner wall of the central tube, and the inner wall of the plurality of helical blades is attached to the outer wall of the two semi-arc frames and the two semi-circular tubes.

[0013] Furthermore, the collecting plate is capable of rotating around its own axis, and the diameter of the collecting plate is larger than the diameter of the cutting frame, which in turn is larger than the diameter of the forming plate.

[0014] Furthermore, the process for preparing animal feed using the aforementioned waste cowhide recycling and animal feed preparation device includes the following steps:

[0015] Step 1: Clean, shred, and dry the waste cowhide;

[0016] Step 2: Add the crushed cowhide, main ingredients, and auxiliary ingredients into the container structure, heat and mix them to prepare animal feed;

[0017] Step 3: The mixed materials are extruded through an extrusion structure to form animal feed;

[0018] Step 4: The extruded animal feed is cut into pellets by rotating the cutting frame;

[0019] Step 5: The collection plate and two vortex plates collect the cut animal feed, which is then dispersed and cooled under rotation for thorough collection.

[0020] The beneficial effects of the process for recycling waste cowhide to prepare animal feed according to the present invention are as follows: the animal feed processed from waste cowhide is fully collected, separated, and fully cooled to prevent sticking; the collected animal feed can also be separated and dispersed by a vortex plate to prevent the prepared animal feed from sticking; the animal feed can also be shaped by extruding it on a plate with through holes, and then cut to complete the preparation of columnar granular animal feed. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 is a schematic diagram of a device for recycling waste cowhides to prepare animal feed.

[0023] Figure 2 is a schematic diagram of the structure for loading materials;

[0024] Figure 3 is a schematic diagram of the molded plate;

[0025] Figure 4 is a schematic diagram of the structure of the heated material;

[0026] Figure 5 is a schematic diagram of the material cutting structure;

[0027] Figure 6 is a schematic diagram of the structure for pushing materials to feed.

[0028] Figure 7 is a schematic diagram of the bottom structure of the structure shown in Figure 6;

[0029] Figure 8 is a schematic diagram of the structure of the mixture;

[0030] Figure 9 is a schematic diagram of the structure for collecting animal feed;

[0031] Figure 10 is a schematic diagram of the vortex plate structure;

[0032] Figure 11 is a half-sectional view of the structure shown in Figure 10.

[0033] In the diagram: Upper plate 11; Middle tube 12; Open tube 13; Outer frame 14; Forming plate 15; Inner convex plate 16; Extrusion hole 17; First frame 18; Second frame 19; Semi-arc frame 21; Semi-circular tube 22; Heating cover 23; Exchange tube 24; Cutting frame 31; Second gear ring 32; Cutting frame 33; Second gear 34; First cylinder 41; Extrusion frame 42; Moving ring plate 43; Fixed ring plate 44; Protrusion 45; Mixing frame 51; Spiral blade 52; Third gear ring 53; Third gear 54; Horizontal frame 55; Collecting plate 61; Rotating frame 62; Vortex plate 63; First gear ring 64; First gear 65; Collecting tube 66. Detailed Implementation

[0034] Referring to Figures 1 to 11, a detailed example of recycling waste cowhides to prepare animal feed is provided:

[0035] A device for recycling waste cowhide to prepare animal feed includes a container structure for loading and mixing materials and a heating structure located in the middle of the container structure. The heating structure is equipped with a mixing structure for mixing the materials. The middle of the container structure is equipped with an extrusion structure for pushing the materials out for feeding. The lower part of the container structure is equipped with a cutting structure for cutting the extruded materials. The lower part of the cutting structure is equipped with a collection structure for collecting materials. The container structure includes a forming plate 15 located at the bottom, and the forming plate 15 is equipped with a plurality of extrusion holes 17. The cutting structure includes a cutting frame 33 located at the bottom of the forming plate 15, and the cutting frame 33 can rotate around its own axis. The collection structure includes a collection plate 61 located at the bottom of the cutting frame 33, and two vortex plates 63 are fixedly connected to the collection plate 61. A collection pipe 66 is fixedly connected to the middle of the collection plate 61.

[0036] The container structure includes a first frame 18, a second frame 19 fixedly connected to the first frame 18, a rotating frame 62 rotatably connected to the second frame 19, a collecting plate 61 fixedly connected to the rotating frame 62, a first gear ring 64 fixedly connected to the collecting plate 61, and multiple first gears 65 rotatably connected to the second frame 19 to drive the first gear ring 64 to rotate. The multiple first gears 65 are respectively fixedly connected to the output shafts of multiple first motors, and the multiple first motors are fixedly connected to the second frame 19. The collecting plate 61 can rotate around its own axis, and the diameter of the collecting plate 61 is larger than the diameter of the cutting frame 33, which is larger than the diameter of the forming plate 15. This ensures that the collecting plate 61 can completely collect the animal feed cut by the cutting frame 33, and that the cutting frame 33 can fully cut the animal feed extruded from the multiple extrusion holes 17.

[0037] A cutting frame 31 is rotatably connected to the first frame 18. A second gear ring 32 and a cutting frame 33 are fixedly connected to the cutting frame 31. Multiple second gears 34 that mesh with and drive the second gear ring 32 to rotate are rotatably connected to the first frame 18. The multiple second gears 34 are fixedly connected to the output shafts of multiple second motors, and the multiple second motors are fixedly connected to the first frame 18.

[0038] The container structure is used to load cleaned, crushed, and dried cowhides, along with other main and auxiliary materials, for animal feed processing. The heating structure is connected to an externally located furnace, through which high-temperature steam circulates within the heating structure, exchanging heat with the materials in contact with it. This heating process thoroughly heats the raw materials for animal feed preparation, allowing the cowhides to be fully refined and mixed with the main and auxiliary materials. The refined cowhides act as a binder, ensuring thorough mixing of the various materials and enhancing the adhesion between the main and auxiliary materials. The mixing structure ensures thorough mixing of the materials within the container structure, allowing for sufficient movement and dispersion of the materials, ensuring uniform dispersion and thorough mixing. During mixing, the cutting frame 33 is tightly fitted onto the forming plate 15. Multiple extrusion holes 17 are blocked to prevent material leakage. The extrusion structure can extrude the mixed material in the container structure through multiple extrusion holes 17 to extrude and shape the material. The animal feed extruded from the multiple extrusion holes 17 is cut by the rotation of the cutting frame 33 in the cutting structure to prepare cylindrical animal feed pellets. The cut animal feed falls onto the collection plate 61 and two vortex plates 63 at the bottom for collection. The two vortex plates 63 can separate the collected animal feed to prevent it from sticking together. The collection plate 61 drives the two vortex plates 63 to rotate, which can push the animal feed to the center, so that it can be collected and bagged from the collection pipe 66. It can also be further cooled before bagging.

[0039] When the extrusion structure pushes the material out, multiple second motors are activated. The output shafts of the multiple second motors drive multiple second gears 34 to rotate. The multiple second gears 34 mesh to drive the second gear ring 32 to rotate. The rotation of the second gear ring 32 drives the cutting frame 31 to rotate. The cutting frame 31 drives the cutting frame 33 to rotate, thereby cutting the extruded animal feed and completing the processing of the animal feed. After collecting the cut animal feed, multiple first motors are activated. The output shafts of the multiple first motors drive multiple first gears 65 to rotate. The multiple first gears 65 mesh to drive the first gear ring 64 to rotate. The rotation of the first gear ring 64 drives the collecting plate 61 to rotate. The collecting plate 61 drives the two vortex plates 63 to rotate, thereby pushing the collected animal feed to move and transport the animal feed to the collecting pipe 66 for collection, bagging, or unloading for further cooling.

[0040] Referring to Figure 11, a detailed embodiment of ensuring that collected animal feed moves towards the center is described:

[0041] The upper surface of the edge of the collecting plate 61 is higher than the upper surface of the middle part, and the collecting pipe 66 is located on the lower side of the middle part of the collecting plate 61. When the collecting plate 61 rotates, it drives the animal feed to move. The slope on the collecting plate 61 can increase the stability of the animal feed moving from the edge to the middle of the collecting plate 61 when rotating, ensuring that the cut animal feed falls on the collecting plate 61, is separated, and is gradually collected from the edge to the middle.

[0042] Referring to Figures 1, 2, 3, and 4, a detailed embodiment of the loading material heating and mixing is described below:

[0043] The container structure also includes an upper plate 11, a central tube 12 fixedly connected to the middle of the upper plate 11, an open tube 13 provided at the upper part of the central tube 12, an outer frame 14 connected to the lower part of the upper plate 11 by threads, a forming plate 15 fixedly connected to the outer frame 14, an inner convex plate 16 fixedly connected to the inner edge of the forming plate 15, and a heating structure including two semi-arc frames 21 fixedly connected to the inner convex plate 16, a semi-circular tube 22 fixedly connected to each semi-arc frame 21, a heating cover 23 threadedly connected to the two semi-circular tubes 22, two exchange tubes 24 fixedly connected to the heating cover 23, and a through hole provided on the connecting surface of the two semi-arc frames 21.

[0044] Material is added into the container structure through the open pipe 13. The open pipe 13 guides the added material, facilitating its addition. The material passes through the middle pipe 12 and falls into the container composed of the upper plate 11, outer frame 14, forming plate 15, inner convex plate 16, and two semi-circular pipes 22, facilitating thorough mixing. The inner convex plate 16 has a shape where the middle is higher than the sides, allowing the material falling on it to be guided onto the forming plate 15. This facilitates subsequent extrusion through multiple extrusion holes 17 on the forming plate 15, forming animal feed pellets. Two exchange pipes 24 are connected to an externally installed heating furnace, which supplies feed to one of the exchange pipes 24. High-temperature steam is supplied and flows through the corresponding semicircular pipe 22 and semi-arc frame 21. Then, it flows through the corresponding through holes on the two semi-arc frames 21 into another semi-arc frame 21, and from the other semicircular pipe 22 into the corresponding exchange pipe 24 back to the externally installed heating furnace, realizing the circulation supply of high-temperature steam. This ensures that the high-temperature steam flows through the heating structure and exchanges heat with the materials being processed as animal feed, thereby heating the animal feed materials and ensuring that the materials are fully mixed and combined, making it easier to process animal feed. The semi-arc frame 21 is a fan-shaped arc frame with a hollow interior to ensure the flow of high-temperature steam. The two semi-arc frames 21 can be tightly attached to the lower part of the inner convex plate 16, thereby ensuring the heating of the materials on the inner convex plate 16.

[0045] Referring to Figures 1 and 8, a detailed embodiment of a method for rapidly mixing materials by driving their movement is described below:

[0046] The mixing structure includes a mixing frame 51 rotatably connected to the outer walls of two semi-circular tubes 22, and a plurality of spiral blades 52 are fixedly connected to the outer wall of the mixing frame 51. The upper outer wall of the plurality of spiral blades 52 is in contact with the inner wall of the central tube 12, and the inner wall of the plurality of spiral blades 52 is in contact with the outer walls of the two semi-circular frames 21 and the two semi-circular tubes 22. A third gear ring 53 is fixedly connected to the upper part of the mixing frame 51, and a crossbeam 55 is fixedly connected to the upper part of the two semi-circular tubes 22. A third gear 54, which drives the third gear ring 53 to rotate, is rotatably connected to the crossbeam 55. The third gear 54 is fixedly connected to the output shaft of the third motor, and the third motor is fixedly connected to the crossbeam 55. When it is necessary to mix the materials, the third motor is started, and the output shaft of the third motor drives the third gear 54 to rotate. The third gear 54 meshes and drives the third gear ring 53 to rotate, which drives the mixing frame 51 to rotate. The mixing frame 51 drives multiple spiral blades 52 to rotate, thereby driving the materials to move synchronously in the vertical and horizontal directions, so as to achieve full mixing of the materials and complete the preparation of animal feed.

[0047] Referring to Figures 6 and 7, a detailed example of material feeding for extrusion preparation of animal feed is provided:

[0048] The extrusion structure includes multiple first cylinders 41 fixedly connected to the upper plate 11. An extrusion frame 42 is fixedly connected to the cylinder rods of the multiple first cylinders 41. A moving ring plate 43 is fixedly connected to one side of the extrusion frame 42 near its axis. A fixed ring plate 44, slidably connected to the moving ring plate 43, is fixedly connected to the lower part of the upper plate 11. The lower end face of the extrusion frame 42 coincides with the upper end face of the forming plate 15. The outer wall of the extrusion frame 42 is fitted against the inner wall of the outer frame 14.

[0049] After the materials for preparing animal feed are mixed, multiple first cylinders 41 are activated. The cylinder rods of the multiple first cylinders 41 drive the extrusion frame 42 to rise and fall, thereby extruding the animal feed from the lower part through multiple extrusion holes 17 for animal feed forming. Combined with the rotation of the cutting frame 33, the animal feed is cut after forming. When the extrusion frame 42 rises and falls, it causes the moving ring plate 43 to slide. The moving ring plate 43 slides relative to the fixed ring plate 44 without any gaps, ensuring that no material falls into the upper part of the extrusion frame 42 during mixing, preventing material from being unable to be discharged for animal feed forming.

[0050] Referring to Figure 7, a detailed example of ensuring animal feed is extruded from multiple extrusion orifices 17 for feed pellet preparation is described:

[0051] The lower part of the extrusion frame 42 is provided with protrusions 45 corresponding to the multiple extrusion holes 17. This ensures that when the extrusion frame 42 descends, it drives the multiple protrusions 45 to insert into the extrusion holes 17, ensuring that while animal feed is extruded from the multiple extrusion holes 17, the multiple extrusion holes 17 are also cleaned. This prevents solidification during long-term extrusion of animal feed, which would prevent the extruded animal feed from forming properly in the extrusion holes 17, resulting in unqualified animal feed. The insertion of the multiple protrusions 45 into the extrusion holes 17 ensures the long-term and stable preparation of animal feed of the same specifications.

[0052] Referring to Figures 1 to 11, detailed examples of the process for recycling waste cowhides to prepare animal feed are provided:

[0053] The process for preparing animal feed according to the above-mentioned waste cowhide recycling and animal feed preparation device includes the following steps:

[0054] Step 1: Clean, shred, and dry the waste cowhides for recycling;

[0055] Step Two: The shredded cowhide, main ingredients, and auxiliary ingredients are added to the container structure for heating and mixing to prepare animal feed. Waste cowhide is recycled and used in the preparation of animal feed. The recycled cowhide is heated and refined to tightly combine the main ingredients and auxiliary ingredients of the animal feed. This results in a dense animal feed that contains protein, collagen, fat, and minerals, producing high-end animal feed suitable for modern pets.

[0056] Step 3: The mixed materials are extruded through an extrusion structure to form animal feed, producing columnar or strip-shaped feed.

[0057] Step 4: The extruded animal feed is cut into cylindrical pellets by the rotation of the cutting frame 33;

[0058] Step 5: The collecting plate 61 and the two vortex plates 63 collect the cut animal feed, disperse and cool it under rotation, and collect it thoroughly.

Claims

1. A device for recycling waste cowhide to prepare animal feed, comprising a container structure for loading and mixing materials and a heating structure disposed in the middle of the container structure, a mixing structure for mixing the materials disposed on the heating structure, an extrusion structure for pushing the materials out of the container structure for feeding out disposed in the middle of the container structure, a cutting structure for cutting the extruded materials disposed at the lower part of the container structure, and a collection structure for collecting materials disposed at the lower part of the cutting structure, characterized in that: The container structure includes a forming plate at the bottom with multiple extrusion holes. The cutting structure includes a cutting frame at the bottom of the forming plate, which can rotate around its own axis. The collecting structure includes a collecting plate at the bottom of the cutting frame, with two vortex plates fixedly attached to the collecting plate and a collecting pipe fixedly attached to the middle of the collecting plate. The two vortex plates can separate the collected animal feed, and the collecting plate can push the animal feed towards the middle as it rotates the two vortex plates. The upper end surface of the edge of the collecting plate is higher than the upper end surface of the middle. The extrusion structure includes multiple first cylinders fixed to the upper plate, with an extrusion frame fixedly attached to the cylinder rod of each first cylinder. A moving ring plate is fixedly attached to the side of the extrusion frame near the axis, and a fixed ring plate slidably connected to the moving ring plate is fixedly attached to the lower part of the upper plate. The lower part of the extrusion frame has protrusions corresponding to the multiple extrusion holes.

2. The device for recycling waste cowhide to prepare animal feed according to claim 1, characterized in that: The collection tube is located on the lower side of the middle part of the collection plate.

3. The device for recycling waste cowhide to prepare animal feed according to claim 1, characterized in that: The container structure also includes an upper plate, a central tube fixed to the middle of the upper plate, an open tube at the upper part of the central tube, an outer frame connected to the lower part of the upper plate by threads, a forming plate fixed to the outer frame, an inner convex plate fixed to the inner edge of the forming plate, and a heating structure including two semi-circular frames fixed to the inner convex plate, a semi-circular tube fixed to each semi-circular frame, a heating cover threaded to the two semi-circular tubes, two exchange tubes fixed to the heating cover, and a through hole connected to the connecting surface of the two semi-circular frames.

4. The device for recycling waste cowhide to prepare animal feed according to claim 3, characterized in that: The mixing structure includes a mixing frame rotatably connected to the outer walls of two semi-circular tubes, and multiple spiral blades are fixed to the outer walls of the mixing frame.

5. The device for recycling waste cowhide to prepare animal feed according to claim 1, characterized in that: The lower end face of the extrusion frame coincides with the upper end face of the forming plate.

6. The apparatus for recycling waste cowhide to prepare animal feed according to claim 4, characterized in that: The outer wall of the upper part of the plurality of helical blades is in contact with the inner wall of the central tube, and the inner wall of the plurality of helical blades is in contact with the outer walls of the two semi-arc frames and the two semi-circular tubes.

7. The device for recycling waste cowhide to prepare animal feed according to claim 1, characterized in that: The collecting plate is rotatable around its own axis, and the diameter of the collecting plate is larger than the diameter of the cutting frame, which in turn is larger than the diameter of the forming plate.

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