A high-efficiency rotating drying device for chicken gizzard lining

Abstract

This utility model relates to the technical field of processing equipment for traditional Chinese medicine, specifically, to a high-efficiency rotary drying device for chicken gizzard lining. It includes a wire mesh cage and a frame. The wire mesh cage consists of an upper cage body and a lower cage body that are rotatably connected and locked. A wire mesh is provided on the circumferential side walls, and side plates are located at both ends. The wire mesh is a diamond-shaped woven mesh, with axially extending semi-cylindrical protrusions fixed to its inner surface, forming parallel grooves. The protrusions and the inner surface of the wire mesh are coated with a food-grade anti-stick coating. The side plates have annularly arranged ventilation holes and are covered with a protective net. The frame supports the wire mesh cage through bearing seats, and a motor drives the wire mesh cage to rotate via a synchronous belt drive. This utility model separates the material and helps to flatten it through the protrusions, the anti-stick coating reduces adhesion, and the rotation creates a negative pressure convection airflow, enhancing air circulation, accelerating moisture evaporation, preventing mold growth, and improving drying efficiency and the integrity of the medicinal materials.

Description

Technical Field

[0001] This utility model relates to the technical field of Chinese medicinal material processing equipment, specifically to a high-efficiency rotating drying device for chicken gizzard lining. Background Technology

[0002] Chicken gizzard lining is an important digestive herb in traditional Chinese medicine. Derived from the inner wall of the gizzard of domestic chickens, it has the effects of strengthening the spleen and promoting digestion, astringing essence and stopping seminal emission, and clearing urinary tract stones. Its initial processing involves manual peeling, rinsing with clean water, and spreading for sun drying. Traditional drying methods mostly rely on natural sun drying or simple heat treatment to remove the high moisture content on the surface of fresh chicken gizzard lining and stabilize its active ingredients. However, fresh chicken gizzard lining is rich in mucilage and collagen, and its physical properties make it susceptible to the effects of environmental temperature and humidity, as well as the way the material is stacked, during the drying process.

[0003] Fresh chicken gizzard lining is rich in mucus, making it highly susceptible to layering and sticking during the drying process. The surface mucus forms a sticky interface during spreading, causing the material to adhere to each other and clump together, hindering internal moisture evaporation and increasing the risk of mold growth. Furthermore, the chicken gizzard lining adhering to the drying rack requires manual removal, further increasing the risk of breakage, reducing the yield, and compromising its appearance. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency rotating drying device for chicken gizzard lining, in order to solve the problems that fresh chicken gizzard lining is prone to layering and sticking together during the drying process, making it difficult for internal moisture to evaporate, and that manual removal can easily increase the risk of breakage.

[0005] To achieve the above objectives, a high-efficiency rotary drying device for chicken gizzard lining is provided, comprising a wire mesh cage and a frame. The wire mesh cage includes an upper cage body and a lower cage body, which are rotatably connected and locked when closed. Both the upper and lower cage bodies have wire mesh on their circumferential side walls, and side plates are fixedly connected to both ends of the wire mesh. The cage mesh has a diamond-shaped woven mesh structure, and multiple axially extending convex strips are fixed to the inner surface of the cage mesh. Parallel grooves are formed between adjacent convex strips. The convex strips are used to separate and help to flatten the chicken gizzard material inside.

[0006] The raised strip (16) together with the rhomboid mesh form a barrier structure to prevent material from falling out of the pores.

[0007] In the above technical solution, the wire mesh cage consists of an upper cage body and a lower cage body that are rotatably connected and locked. The circumferential sidewalls of the upper and lower cage bodies are provided with a diamond-shaped woven mesh cage with uniform pores and intersecting ridges (referring to the raised edge lines formed by the metal wires constituting the diamond-shaped woven mesh structure at the intersection nodes), ensuring airflow while preventing materials from getting stuck. Multiple axially extending convex strips are fixed to the inner surface of the cage mesh, forming parallel grooves between adjacent convex strips. When the wire mesh cage rotates, the convex strips can use centrifugal force and gravity to generate a mechanical spreading force on the material, forcing the adhering material to disperse along the grooves. At the same time, the grooves can guide the material to slide and be combed and flattened by the ridges, thereby increasing the contact area between the material and the air.

[0008] Based on this, the convex strip is semi-cylindrical, and the bottom surface of the convex strip is fixedly connected to the node of the diamond woven mesh. The convex strip extends continuously in the axial direction and is equal to the length of the cage mesh. The inner surfaces of the cage mesh and the raised bars are coated with a food-grade non-stick coating.

[0009] In this technical solution, the raised strip is designed as a semi-cylindrical shape with its bottom surface fixed to the diamond-shaped grid nodes. The semi-cylindrical profile provides uniform mechanical spreading force when the material rotates. The fixed nodes ensure the structural stability of the raised strip under centrifugal force, preventing it from falling off. The raised strip extends continuously along the axial direction and is the same length as the cage mesh, allowing the material to be dispersed by the raised strip throughout the entire drying area. The inner surfaces of the cage mesh and the raised strip are coated with a food-grade non-stick coating. Its smooth surface reduces the adhesion between the mucus and the cage body, preventing layering and adhesion caused by sticking, and also preventing damage to the medicinal materials caused by manual removal.

[0010] In another technical solution, multiple sets of ventilation holes are provided on the side plates at both ends. The ventilation holes are arranged in a ring array, and a protective net is fixedly connected to the outer surface of the ventilation holes.

[0011] In this technical solution, multiple sets of annularly arranged ventilation holes are opened on the side plate. Together with the rotation of the mesh cage, they form a convective airflow field. When the mesh cage rotates, the internal air is thrown towards the circumferential mesh by centrifugal force, and a negative pressure is formed in the center. External air flows in from the annular ventilation holes on the side plate and is discharged through the mesh openings, forming an airflow circulation path. The annular arrangement can ensure uniform airflow and enhance the airflow's penetration ability into the material layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this high-efficiency rotary drying device for chicken gizzard, when the cage rotates, the chicken gizzard collides and rubs against the raised strips. Under the mechanical spreading force of the raised strips' contours, it disperses along the groove direction, avoiding layering and adhesion caused by mucus. The grooves guide the material to slide under the action of centrifugal force and gravity, and the surface is continuously smoothed by the ridges to achieve flattening. Simultaneously, the food-grade anti-stick coating on the raised strips and the inner surface of the cage reduces material adhesion, minimizes wrinkles or adhesion caused by mucus, and prevents material from sticking to the cage, ensuring that the chicken gizzard maintains a smooth surface during rotation.

[0013] 2. In this high-efficiency rotary drying device for chicken gizzards, the ventilation holes on the side plates are arranged in a ring array. Combined with the rotation of the mesh cage, this creates a multi-directional convective airflow field, improving air circulation efficiency. When the mesh cage rotates, the internal air is thrown towards the circumferential mesh by centrifugal force, creating a negative pressure at the center. External air flows in through the ring ventilation holes on the side plates, diffuses outwards from the center, and then exits through the mesh openings. The higher the rotation speed, the greater the centrifugal force, the more pronounced the negative pressure, and the faster the airflow velocity. This accelerates air renewal, promotes airflow penetration through the material layer, ensures uniform drying, and removes humid and hot gases, reducing the risk of mold growth. The device enhances drying efficiency through the application of mechanical rotation and fluid dynamics principles. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the wire mesh cage of this utility model.

[0015] The meanings of the labels in the diagram are as follows: 1. Wire mesh cage; 11. Upper cage body; 12. Lower cage body; 13. Cage mesh; 14. Side plate; 15. Ventilation hole; 16. Raised bar; 2. Frame; 21. Motor; 22. Drive wheel; 23. Synchronous belt; 24. Driven wheel; 25. Bearing seat. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Here are some explanations of technical terms: Chicken gizzard lining: a traditional Chinese medicine, specifically referring to the keratinized mucous membrane tissue peeled from the inner wall of the gizzard of the domestic chicken (Gallus gallus domesticus). Anatomically, it is located at the junction of the gizzard and the digestive muscle layer, and its physiological function is to assist in the grinding of food. Fresh chicken gizzard lining is a translucent gel-like sheet structure, initially about 1.5 to 2.5 mm thick, covered with a highly viscous mucus layer, with a water content as high as 60% to 70%. After proper drying, it forms a brittle, amber-colored sheet 30-80 mm long and 20-50 mm wide, with the thickness reduced to 0.2-0.5 mm, and the volume shrinks significantly.

[0018] Please see Figures 1-2 As shown, the purpose of this embodiment is to provide a high-efficiency rotating drying device for chicken gizzard lining, including a mesh cage 1 and a frame 2. As... Figure 2 As shown, the net cage 1 is divided into an upper cage body 11 and a lower cage body 12. The two are connected by a hinge structure and can be locked by a locking mechanism after being closed, forming a closed drying space. This makes it easy for operators to open the upper cage body 11 and evenly spread the fresh chicken gizzard inside the net cage 1, while also facilitating subsequent cleaning and maintenance.

[0019] The circumferential sidewalls of the cage 1 utilize a rhomboid woven mesh structure 13. The geometric characteristics of the rhomboid openings optimize the airflow path. The included angle of the rhomboid diagonals reduces air resistance as air flows through, and the evenly distributed openings ensure a stable penetration path for the airflow in the circumferential direction. When the cage 1 rotates, the internal air moves circumferentially due to centrifugal force. According to fluid dynamics principles, a negative pressure is created in the central area, allowing external air to flow in through the annularly arranged ventilation holes 15 on the side plate 14 and exit through the openings of the mesh 13, forming a radial convective airflow field with the center of the cage 1 as its axis. The protective mesh covering the ventilation holes 15 on the side plate 14, while ensuring efficient airflow, also uses the principle of inertial impaction to block debris, preventing contamination or falling of medicinal materials.

[0020] The inner surface of the cage mesh 13 is provided with semi-cylindrical protrusions 16. The bottom surface of the protrusions 16 is welded to the nodes of the diamond-shaped woven mesh. At this time, the protrusions 16 will cover part of the diamond-shaped pores. Through the coordinated design of the diamond mesh pore diameter and the cross-sectional dimensions of the protrusions 16, it is ensured that the material does not leak. The design is based on the minimum geometric dimensions of the dried chicken gizzard lining (such as the minimum side length of the sheet material after shrinkage), so that the equivalent diameter of the pores remaining after the protrusions 16 cover the nodes is smaller than this size. For example, the original pore diameter of the diamond mesh is designed to be 8-10mm, and the bottom diameter of the semi-cylindrical protrusions 16 is 4-5mm. After welding, the pores at the nodes are divided into multiple small areas, with the maximum gap being less than 5mm. After drying, the chicken gizzard lining shrinks to a thickness ≤2mm and a minimum side length ≥6mm, thus preventing it from falling through the pores. By utilizing the ridge 16 to cover the grid nodes, the large aperture is transformed into multiple smaller apertures. This ensures airflow penetration efficiency by leveraging the original ventilation area of ​​the diamond-shaped grid, while the physical shielding of the ridge 16 forms a leak-proof barrier. Simultaneously, the curved surface structure of the semi-cylindrical ridge 16, when shielding the gaps, guides airflow around the ridge 16 through the flow channel formed by its curved surface and the grid edges, reducing ventilation resistance and ensuring that the uniformity of the airflow field remains unaffected.

[0021] The raised strip 16 also achieves material dispersion through mechanical design. The normal force generated on the material by the semi-circular arc surface during rotation can be decomposed into axial and tangential components. When the material is thrown against the cage wall, the arc surface of the raised strip 16 gradually expands the sticky material clumps, while the tangential component drives the material to slide along the grooves. The raised strip 16 is fixed to the diamond-shaped grid nodes, using the mechanical support of the nodes to withstand centrifugal force and prevent detachment. The axially continuous extension structure ensures that the material is subjected to mechanical action throughout the drying path. The parallel grooves formed by adjacent raised strips 16 guide the material to make a spiral motion under the action of centrifugal force and gravity. The ridge lines (referring to the raised edge lines formed by the metal wires constituting the diamond woven grid structure at the intersection nodes) continuously cut the viscous adhesion interface, dispersing the clumps of material into thin layers.

[0022] The inner surfaces of the cage mesh 13 and the raised strips 16 are coated with a food-grade anti-stick coating made of polytetrafluoroethylene (PTFE). The coating's molecular structure has low surface energy, preventing viscous substances from adhering stably to its surface. Centrifugal force during rotation allows the material to easily detach. This coating is chemically inert, resistant to high and low temperatures, and does not react with the medicinal ingredients. It has passed food contact material safety certification, ensuring no harmful substances migrate during the drying process. Furthermore, the PTFE coating undergoes processing to control its micro-roughness within a suitable range, balancing the anti-stick properties with material friction. This ensures that the material neither adheres to the cage body during rotation nor loses its dynamic dispersion due to moderate friction. In the entire device, the centrifugal force generated by rotation serves as both the driving force for material dispersion and the driving force for airflow circulation. The raised strips 16 and the coating solve the adhesion problem, while the ventilation holes 15 and the cage mesh 13 optimize the airflow. Through the synergy of mechanical force fields, flow fields, and material properties, static drying is transformed into an active drying process.

[0023] like Figure 1 As shown, the upper sides of the frame 2 are supported by bearing seats 25, which support the rotating shaft of the mesh cage 1. The motor 21 is fixedly installed at the bottom. The drive wheel 22 on the output shaft of the motor 21 is connected to the driven wheel 24 on one side of the rotating shaft of the mesh cage 1 via a synchronous belt 23, forming a stable rotation drive system. The operator can control the rotation speed of the mesh cage 1 by adjusting the speed of the motor 21, thereby adjusting the magnitude of the centrifugal force and the airflow velocity. The higher the speed, the greater the centrifugal force, the more obvious the central negative pressure, the higher the efficiency of the airflow penetrating the material layer, and the faster the drying speed, thus achieving precise drying control of chicken gizzard lining with different moisture contents.

[0024] Working principle: The operator first releases the locking mechanism between the upper cage 11 and the lower cage 12, rotates to open the upper cage 11, and then evenly spreads the pre-treated fresh chicken gizzard material on the inner surface of the cage mesh 13 of the lower cage 12. After spreading, the upper cage 11 is closed and locked, forming a closed drying space. The motor 21, fixed to the bottom of the frame 2, is started. The motor 21 drives the drive wheel 22 on its output shaft to rotate. The drive wheel 22 transmits power to the driven wheel 24, which is fixed to the rotating shaft on one side of the cage 1, through the synchronous belt 23, thereby driving the entire cage 1 to rotate around its axis under the support of the bearing seat 25.

[0025] During the rotation of the cage 1, the chicken gizzard material inside is thrown towards the inner wall of the circumferential cage 13 under the action of centrifugal force. The semi-cylindrical protrusions 16, which are fixed to the inner surface of the cage 13 and extend axially continuously, collide and rub against the material. Their protruding contours generate a mechanical spreading force on the material clumps, forcing the adhered material to disperse along the parallel grooves formed between adjacent protrusions 16. At the same time, under the combined action of centrifugal force, gravity, and the tangential component force generated by the arc surface of the protrusions 16, the material slides along the groove direction and the rhomboid ridges of the cage 13, and the rhomboid ridges continuously comb the surface of the material.

[0026] The food-grade non-stick coating applied to the inner surfaces of the cage mesh 13 and the raised strips 16 utilizes its low surface energy characteristics to reduce the adhesion force between the mucus on the surface of the chicken gizzard material and the surface of the metal cage, making it easier for the material to detach from or slide off the cage surface under the action of centrifugal force and gravity.

[0027] The rotation of the wire mesh cage 1 simultaneously drives the internal airflow. Air, subjected to centrifugal force, is thrown towards the circumferential mesh 13, causing a pressure drop in the central area of ​​the cage 1, creating a negative pressure. Driven by this pressure difference, external air flows evenly into the cage 1 through the annular array of ventilation holes 15 on the side plates 14 at both ends, covered by a protective mesh. The incoming air diffuses outwards from the central area of ​​the cage 1, penetrating the material layer and exiting through the gaps in the diamond-woven mesh 13, forming a continuous airflow circulation path. The operator can control the rotation speed of the cage 1 by adjusting the speed of the motor 21 according to the initial state of the material.

[0028] After the drying process is completed, turn off the motor 21. After the mesh cage 1 stops rotating, release the locking mechanism, open the upper cage 11, and you can take out the dried chicken gizzard material and clean the device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency rotary drying device for chicken gizzard lining, comprising a wire mesh cage (1) and a frame (2), characterized in that: The wire mesh cage (1) includes an upper cage body (11) and a lower cage body (12). The upper cage body (11) and the lower cage body (12) are rotatably connected and locked after being closed. The circumferential sidewalls of the upper cage body (11) and the lower cage body (12) are provided with wire mesh (13). The two ends of the wire mesh (13) are fixedly connected with side plates (14), wherein: The cage net (13) has a diamond-shaped woven mesh structure. Multiple axially extending convex strips (16) are fixed to the inner surface of the cage net (13), and parallel grooves are formed between adjacent convex strips (16). The convex strips (16) are used to separate and help flatten the chicken gizzard material inside.

2. The high-efficiency rotary drying device for chicken gizzard lining according to claim 1, characterized in that: The protruding strip (16) is semi-cylindrical, and the bottom surface of the protruding strip (16) is fixedly connected to the node of the diamond woven mesh. The protruding strip (16) extends continuously in the axial direction and is equal in length to the cage mesh (13).

3. The high-efficiency rotary drying device for chicken gizzard lining according to claim 2, characterized in that: The raised strip (16) together with the rhomboid mesh form a barrier structure to prevent material from falling out of the pores.

4. The high-efficiency rotary drying device for chicken gizzard lining according to claim 3, characterized in that: The inner surfaces of the cage mesh (13) and the ribs (16) are coated with a food-grade non-stick coating.

5. The high-efficiency rotary drying device for chicken gizzard lining according to claim 1, characterized in that: Multiple sets of ventilation holes (15) are provided on the side plates (14) at both ends, and the ventilation holes (15) are arranged in a ring array.

6. The high-efficiency rotary drying device for chicken gizzard lining according to claim 5, characterized in that: A protective net is fixedly connected to the outer surface of the ventilation hole (15).

7. The high-efficiency rotary drying device for chicken gizzard lining according to claim 1, characterized in that: Bearing seats (25) are fixedly connected to both sides of the upper part of the frame (2), and the wire mesh cage (1) is rotatably connected to the frame (2) through the bearing seats (25).

8. The high-efficiency rotary drying device for chicken gizzard lining according to claim 7, characterized in that: A motor (21) is fixedly connected to the bottom of the frame of the frame (2). A drive wheel (22) is fixedly connected to the output shaft of the motor (21). A driven wheel (24) is fixedly connected to the rotating shaft on one side of the wire mesh cage (1). The drive wheel (22) is connected to the driven wheel (24) through a synchronous belt (23).

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