Dryer for meat processing
The meat processing dryer, with its multi-space design and dynamic wind speed control, solves the problem of uneven drying caused by a single temperature field, achieving uniformity in the meat drying process and preservation of nutrients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing meat processing dryers have a single temperature field in the drying chamber, which cannot adapt to the temperature and humidity requirements of meat at different drying stages. This results in large differences in the degree of drying and easily leads to problems such as surface crusting and hardening or uneven drying.
The storage cylinder, with its multi-space design, uses a servo motor and hydraulic cylinder to drive the rotation and oscillation of the baffles and air outlet grilles. Combined with an air circulator, it achieves temperature control and wind speed management at different stages, ensuring uniform distribution of hot air and eliminating dead zones in the airflow.
It achieves precise control of temperature and humidity during the meat drying process, ensuring consistent drying levels, preserving nutrients and flavor to the greatest extent, and avoiding the uneven drying problem found in traditional dryers.
Smart Images

Figure CN121795484A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drying technology, specifically to a drying machine for meat processing. Background Technology
[0002] In the processing of meat products, drying is a key step in creating the product's unique flavor and extending its shelf life. For example, patent application number CN202221813353.X describes a drying machine for processing meat products, including a drying box. A radiator is fixedly connected to one side of the drying box, and a heat equalization device is fixedly connected to the other side of the drying box. Four baking racks are movably connected to the inner cavity of the drying box. A door is movably connected to one side of the baking rack, and a handle is fixedly connected to one side of the door. Four baking devices are fixedly connected to the bottom of the inner cavity of the drying box. The heat equalization device includes: a stepper motor, a drive shaft, a drive gear, a gear ring, a driven gear, and a connecting shaft. The drive shaft is movably connected to one side of the stepper motor, and a drive gear is fixedly connected to one end of the drive shaft. A gear ring is movably connected to the outer edge of the drive gear, and a driven gear is movably connected to one side of the inner wall of the gear ring. This design helps to ensure that the meat is heated evenly, avoiding the situation where the top of the meat is not dried or the bottom of the meat is burnt, thereby ensuring the meat quality and taste. In the above technical solutions, the temperature field in the drying room is singular, which cannot adapt to the different optimal requirements of temperature and humidity for meat in the early, middle and late stages of drying. The air circulation mode is fixed, and there are dead air zones, which leads to large differences in the degree of drying of the same batch of materials, and easily causes surface crusting and hardening or uneven drying. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a dryer for meat processing, which solves the problems of a single temperature field in the drying chamber, which cannot adapt to the different optimal temperature and humidity requirements of meat in the early, middle and late stages of drying, a fixed air circulation mode, dead air zones, and large differences in the degree of drying of the same batch of materials, which can easily lead to surface crusting and hardening or uneven drying.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a drying machine for meat processing, comprising a storage cylinder with an opening on its surface, a fan mounted on the upper surface of the storage cylinder, a ventilation duct mounted at the output end of the fan, four baffles rotatably mounted at equal intervals on the circumference of the ventilation duct, the four baffles forming four spaces in the storage cylinder, a plurality of limiting grooves rotatably opened on the inner wall of the storage cylinder according to the positions of the spaces formed by the baffles, a heating component mounted on the inner wall surface of the limiting grooves, a plurality of ventilation openings rotatably opened in each of the four spaces formed by the ventilation duct and each baffle, an installation ring rotatably mounted on the inner wall of each ventilation opening, a plurality of air outlet grilles rotatably arranged between the inner walls of the installation rings, a driving component connected to the baffles on the inner surface of the storage cylinder, a driving component connected to the air outlet grilles on the inner surface of the ventilation duct, and a screen installed between every two baffles.
[0005] Preferably, several air circulators are installed at equal intervals around the circumference of the storage cylinder.
[0006] Preferably, a base is mounted on the lower surface of the storage cylinder.
[0007] Preferably, the ventilation duct is rotatably mounted with several rotating rings on its circumference, and all four baffles are connected to the rotating rings.
[0008] Preferably, the drive assembly includes a chassis and a servo motor, with the chassis fixedly installed at the lower end of the ventilation duct and the servo motor fixedly installed on the inner surface of the storage cylinder.
[0009] Preferably, the chassis forms a guide groove with the inner wall of the storage cylinder.
[0010] Preferably, a turntable is installed at the output end of the servo motor, and a plurality of guide blocks are equidistantly installed on the upper surface of the turntable. The plurality of guide blocks slide through the guide groove and are connected to a plurality of baffles.
[0011] Preferably, the swing assembly includes a hydraulic cylinder and a mounting plate, with the hydraulic cylinder fixedly mounted on the inner surface of the storage cylinder and the mounting plate fixedly mounted on the rear surface of the air outlet grille.
[0012] Preferably, the hydraulic cylinder output end is equipped with an installation rod, and a plurality of installation discs are equidistantly installed on the circumference of the installation rod. A plurality of grooves are equidistantly opened on the circumference of the installation discs, and a first rotating shaft is rotatably installed on the inner walls of both sides of the grooves.
[0013] Preferably, a second rotating shaft is rotatably mounted on the inner walls of both sides of the mounting plate, and a connecting rod is fixedly mounted on the circumference of the first rotating shaft, with one end of the connecting rod disposed on the circumference of the second rotating shaft.
[0014] This invention provides a drying machine for meat processing. It has the following beneficial effects: 1. Starting the servo motor drives all baffles to rotate synchronously, thereby changing the position of the first space for baking. During baking, the fan sends air into the ventilation duct, ensuring hot air is evenly distributed to the material. An air circulator assists in agitating the air, making the temperature field more uniform, and multiple mounting plates are fixed on the mounting rod at the output end. The grooves on the edge of the mounting plates are connected to a connecting rod via a first rotating shaft, and the other end of the connecting rod is connected to a mounting clamp fixed to the back of the air outlet grille via a second rotating shaft. When the hydraulic cylinder extends or retracts, the linkage mechanism drives all air outlet grilles to swing synchronously, controlling the direction of airflow. After the meat in the first space is baked, the material enters the second space with a preset temperature to begin the second stage of drying. This stage is set at a higher temperature to accelerate dehydration. After completion, the servo motor is restarted to rotate the material to the third space for the final stage of low-temperature and gentle drying. The drying area is divided into multiple independent temperature zones by baffles, and the space carrying the material can pass through these temperature zones in sequence. The three spaces are set with different temperatures. During the drying process, the meat goes through preheating, rapid dehydration, and gentle drying in sequence. The process matching is extremely high, which can preserve nutrients and flavor to the greatest extent. The swing component periodically drives all the air outlet grilles to swing synchronously, which changes the drawback of the traditional fixed air direction. It allows hot air to sweep the material at different angles. Combined with the auxiliary agitation of the air circulator, dead air zones are completely eliminated, ensuring a high degree of consistency in the drying degree of the same batch of material. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall side view structure of the present invention; Figure 3 This is a schematic cross-sectional view of the ventilation duct structure in this invention; Figure 4 This is an enlarged structural diagram of point A in this invention; Figure 5 This is a schematic diagram of the rotating ring structure in this invention; Figure 6 This is a schematic diagram of the internal structure of the storage cylinder in this invention.
[0016] The components include: 1. Storage cylinder; 2. Base; 3. Cylinder opening; 4. Fan; 5. Ventilation duct; 6. Rotary ring; 7. Screen; 8. Ventilation opening; 9. Mounting ring; 10. Baffle; 11. Heating component; 12. Air circulator; 13. Drive component; 1301. Chassis; 1302. Guide groove; 1303. Servo motor; 1304. Turntable; 1305. Guide block; 14. Swing component; 1401. Hydraulic cylinder; 1402. Mounting rod; 1403. Mounting plate; 1404. Groove; 1405. First rotating shaft; 1406. Connecting rod; 1407. Mounting clamp; 1408. Second rotating shaft; 15. Air outlet grille; 16. Limiting groove. Detailed Implementation
[0017] 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.
[0018] like Figure 1 , 2 As shown in Figure 6, a dryer for meat processing includes a storage cylinder 1 with an opening 3 on its surface. A fan 4 is mounted on the upper surface of the storage cylinder 1, and a ventilation duct 5 is installed at the output end of the fan 4. Four baffles 10 are rotatably mounted at equal intervals on the circumference of the ventilation duct 5, forming four spaces in the storage cylinder 1. Several limiting grooves 16 are rotatably opened on the inner wall of the storage cylinder 1 according to the positions of the spaces formed by the baffles 10. A heating component 11 is installed on the inner wall surface of the limiting grooves 16. Several ventilation openings 8 are rotatably opened in each of the four spaces formed by the ventilation duct 5 and each baffle 10. An installation ring 9 is rotatably mounted on the inner wall of each ventilation opening 8. Several air outlet grilles 15 are rotatably arranged between the inner walls of the installation rings 9. A drive component 13 is provided on the inner surface of the storage cylinder 1 and connected to the baffles 10. A screen 7 is installed between every two baffles 10.
[0019] like Figure 1 As shown, several air circulators 12 are equidistantly installed on the circumference of the storage cylinder 1 to circulate the air inside the storage cylinder 1.
[0020] As shown in the figure, a base 2 is installed on the lower surface of the storage cylinder 1, which can increase the stability of the device.
[0021] like Figure 1As shown, several rotating rings 6 are rotatably installed around the circumference of the ventilation duct 5. All four baffles 10 are connected to the rotating rings 6. The four baffles 10 are installed on the ventilation duct 5 via the rotating rings 6, dividing the internal space into four equal parts. After the meat in the first space is baked, the material enters the second space, where the temperature is preset, to begin the second stage of drying. This stage is usually set at a higher temperature to accelerate dehydration. After completion, the servo motor 1303 is restarted to rotate the material to the third space for the final stage of low-temperature, gentle drying.
[0022] like Figure 2 , 3 As shown in Figures 4 and 5, the drive assembly 13 includes a chassis 1301 and a servo motor 1303. The chassis 1301 is fixedly installed at the lower end of the ventilation duct 5, and the servo motor 1303 is fixedly installed on the inner surface of the storage cylinder 1. The chassis 1301 and the inner wall of the storage cylinder 1 form a guide groove 1302. A turntable 1304 is installed at the output end of the servo motor 1303. Several guide blocks 1305 are equidistantly installed on the upper surface of the turntable 1304. Several guide blocks 1305 slide through the guide groove 1302 and are connected to several baffles 10. Because the servo motor 1303 is fixed inside the cylinder, the turntable 1304 on its output shaft is equipped with guide blocks 1305. The guide blocks 1305 pass through the guide groove 1302 and are hinged to the lower part of each baffle 10. The servo motor 1303, when activated, drives all baffles 10 to rotate synchronously, thereby changing the position of the first space for baking. During baking, the fan 4 sends air into the ventilation duct 5, ensuring hot air is evenly distributed to the material. An air circulator 12 assists in agitating the air, making the temperature field more uniform, and multiple mounting plates 1403 are fixed to the mounting rod 1402 at the output end. The grooves 1404 on the edge of the mounting plate 1403 are connected to a connecting rod 1406 via a first rotating shaft 1405. The other end of the connecting rod 1406 is connected to a mounting clamp 1407 fixed to the back of the exhaust grille 15 via a second rotating shaft 1408. When the hydraulic cylinder 1401 extends or retracts, it drives all exhaust grilles 15 to swing synchronously through this linkage mechanism, controlling the direction of airflow. After the meat in the first space is baked, the material enters the second space with a pre-set temperature to begin the second stage of drying. This stage is typically set at a higher temperature to accelerate dehydration. Once completed, the servo motor 1303 is restarted to rotate the material to the third space for the final stage of low-temperature and gentle drying.
[0023] like Figure 2 , 3As shown in Figures 4 and 5, the swing assembly 14 includes a hydraulic cylinder 1401 and a mounting clamp 1407. The hydraulic cylinder 1401 is fixedly installed on the inner surface of the storage cylinder 1, and the mounting clamp 1407 is fixedly installed on the rear surface of the air outlet grille 15. A mounting rod 1402 is installed at the output end of the hydraulic cylinder 1401. A plurality of mounting discs 1403 are equidistantly installed on the circumference of the mounting rod 1402. A plurality of grooves 1404 are equidistantly formed on the circumference of the mounting discs 1403. 4. A first rotating shaft 1405 is rotatably mounted on the inner walls of both sides of the mounting clamp 1407, and a second rotating shaft 1408 is rotatably mounted on the inner walls of both sides of the mounting clamp 1407. A connecting rod 1406 is fixedly mounted on the circumference of the first rotating shaft 1405, and one end of the connecting rod 1406 is located on the circumference of the second rotating shaft 1408. Because the servo motor 1303 is fixed inside the cylinder, a guide block 1305 is mounted on the turntable 1304 on its output shaft. The guide block 1305 passes through the guide groove 1302 and is hinged to the lower part of each baffle 10. Starting the servo motor 1303 can drive all the baffles 10 to rotate synchronously, thereby changing the position of the first space for baking. During the baking process, the fan 4 sends air into the ventilation duct 5 to make the hot air blow evenly onto the material. The air circulator 12 assists in agitating the air to make the temperature field more uniform, and a multi-layer mounting plate 1403 is fixed on the mounting rod 1402 at the output end. The groove 1404 on the edge of the mounting plate 1403 is connected to the connecting rod 1406 via the first rotating shaft 1405. The other end of the connecting rod 1406 is connected to the mounting clamp 1407 fixed to the back of the air vent grille 15 via the second rotating shaft 1408. When the hydraulic cylinder 1401 extends or retracts, it drives all the air vent grilles 15 to swing synchronously at the same angle through this linkage mechanism, controlling the direction of airflow. After the meat is baked in the first space, the material enters the second space with a preset temperature to begin the second stage of drying. This stage is usually set at a higher temperature to accelerate dehydration. After completion, the servo motor 1303 is restarted to rotate the material to the third space for the final stage of low-temperature and gentle drying.
[0024] Working principle: The pre-treated meat is evenly spread on the layers of screens 7 in the first space. At this time, the control system sets the target temperature for the three main drying stages corresponding to the three spaces. The heating components 11 in each area start working, preheating to their respective set temperatures, and then drying. Since the servo motor 1303 is fixed inside the drum, the turntable 1304 on its output shaft is equipped with guide blocks 1305. The guide blocks 1305 pass through the guide grooves 1302 and are hinged to the lower part of each baffle 10. Starting the servo motor 1303 can drive all the baffles 10 to rotate synchronously, thereby changing the position of the first space for baking. During the baking process, the fan 4 sends air into the ventilation duct 5, so that the hot air is evenly blown onto the material. The air circulator 12 assists in agitating the air, making the temperature field more uniform, and a multi-layer mounting plate 1403 is fixed on the mounting rod 1402 at the output end. The groove 1404 on the edge of the mounting plate 1403 is connected to the connecting rod 1406 via the first rotating shaft 1405. The other end of the connecting rod 1406 is connected to the mounting clamp 1407 fixed to the back of the air vent grille 15 via the second rotating shaft 1408. When the hydraulic cylinder 1401 extends and retracts, it drives all the air vent grilles 15 to swing synchronously at the same angle through the linkage mechanism, controlling the direction of airflow. After the meat is baked in the first space, the material enters the second space with a preset temperature to begin the second stage of drying. This stage is set at a higher temperature to accelerate dehydration. After completion, the servo motor 1303 is started again to rotate the material to the third space for the final stage of low-temperature and gentle drying. The heating component 11 is composed of a stainless steel or alloy tube shell, a high-resistance electric heating alloy wire, a high-purity crystalline magnesium oxide powder insulating filler, and sealed terminals. The current passes through the electric heating alloy wire in the tube to generate Joule heat. The heat is quickly and evenly transferred to the metal tube shell through the highly thermally conductive magnesium oxide powder, making the entire surface of the tube shell a heating surface.
[0025] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A dryer for meat processing, comprising a storage cylinder (1), characterized in that, The storage cylinder (1) has an opening (3) on its surface. A fan (4) is installed on the upper surface of the storage cylinder (1). A ventilation duct (5) is installed at the output end of the fan (4). Four baffles (10) are equidistantly mounted on the circumference of the ventilation duct (5). The four baffles (10) form four spaces in the storage cylinder (1). Several limiting grooves (16) are equidistantly provided on the inner wall of the storage cylinder (1) according to the positions of the spaces formed by the baffles (10). A heating component (11) is installed on the inner wall surface of the limiting grooves (16). The pipe (5) and each baffle (10) form four spaces, each with a number of ventilation openings (8) at equal intervals. Each ventilation opening (8) has an installation ring (9) rotatably installed on its inner wall. The installation rings (9) have a number of air outlet grilles (15) at equal intervals between their inner walls. The storage cylinder (1) has a drive assembly (13) on its inner surface that is connected to the baffles (10). The ventilation pipe (5) has a drive assembly (13) on its inner surface that is connected to the air outlet grilles (15). A screen (7) is installed between every two baffles (10).
2. A drying machine for meat processing according to claim 1, characterized in that, Several air circulators (12) are installed at equal intervals around the storage cylinder (1).
3. A drying machine for meat processing according to claim 1, characterized in that, A base (2) is installed on the lower surface of the storage cylinder (1).
4. A drying machine for meat processing according to claim 1, characterized in that, The ventilation duct (5) is rotatably mounted with several rotating rings (6), and the four baffles (10) are all connected to the rotating rings (6).
5. A drying machine for meat processing according to claim 1, characterized in that, The drive assembly (13) includes a chassis (1301) and a servo motor (1303). The chassis (1301) is fixedly installed at the lower end of the ventilation duct (5), and the servo motor (1303) is fixedly installed on the inner surface of the storage cylinder (1).
6. A drying machine for meat processing according to claim 5, characterized in that, The chassis (1301) and the inner wall of the storage cylinder (1) form a guide groove (1302).
7. A drying machine for meat processing according to claim 6, characterized in that, The output end of the servo motor (1303) is equipped with a turntable (1304). Several guide blocks (1305) are equidistantly installed on the upper surface of the turntable (1304). Several guide blocks (1305) slide through the guide groove (1302) and are connected to several baffles (10).
8. A drying machine for meat processing according to claim 1, characterized in that, The swing assembly (14) includes a hydraulic cylinder (1401) and a mounting plate (1407). The hydraulic cylinder (1401) is fixedly installed on the inner surface of the storage cylinder (1), and the mounting plate (1407) is fixedly installed on the rear surface of the air outlet grille (15).
9. A drying machine for meat processing according to claim 8, characterized in that, The hydraulic cylinder (1401) has an installation rod (1402) installed at its output end. Several installation discs (1403) are installed at equal intervals on the circumference of the installation rod (1402). Several grooves (1404) are opened at equal intervals on the circumference of the installation discs (1403). A first rotating shaft (1405) is rotatably installed on the inner walls on both sides of the grooves (1404).
10. A drying machine for meat processing according to claim 9, characterized in that, The mounting clamp (1407) has a second rotating shaft (1408) rotatably mounted on the inner walls of both sides. A connecting rod (1406) is fixedly mounted on the circumference of the first rotating shaft (1405), and one end of the connecting rod (1406) is located on the circumference of the second rotating shaft (1408).
Citation Information
Patent Citations
Dryer for meat food processing
CN217523804U