Air guide mechanism for fluidized quick-freezing device

Abstract

The utility model discloses an air guide mechanism for a fluidization quick-freezing device, which comprises the fluidization quick-freezing device, a fluidization bed is arranged in the fluidization quick-freezing device, an air guide mechanism is arranged below the fluidization bed, and a refrigeration box and an air guide fan are arranged on the outer side of the fluidization quick-freezing device. The air guide mechanism comprises a lifting plate arranged at the bottom of the fluidized quick-freezing device through a first lifting electric cylinder, a plurality of groups of air guide pipes are arranged on the lifting plate, and air blowing nozzles are arranged on the air guide pipes side by side; the air guide pipe is rotationally arranged on the lifting plate through a swinging mechanism; and a PLC (Programmable Logic Controller) is arranged on the outer side of the fluidized quick-freezing device. The distance between the air blowing nozzle and the fluidization bed is adjusted by arranging the telescopic electric cylinder, the adjustable guide plate is arranged above the fluidization bed, blown air blows downwards in reverse, quick-frozen food makes more comprehensive contact with cold air, and the food freezing efficiency and the freezing quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and more specifically to an air guide mechanism for a fluidized bed quick-freezing device. Background Technology

[0002] In the food processing industry, traditional freezing methods for quick-freezing food mainly involve freezing in cold storage or contact plate freezing. However, these traditional freezing methods require a long time for the core temperature of the material to drop below the freezing point, resulting in excessively large ice crystals that damage cell structure, causing juice loss, softening, and loss of nutrients. Furthermore, during static freezing, the material is prone to sticking together, affecting subsequent packaging and the eating experience.

[0003] To address the aforementioned issues, fluidized bed freezing technology is introduced. By using high-speed cold air to create a dynamic suspension in a fluidized bed, the material to be frozen is evenly dispersed in the low-temperature airflow and undergoes rapid heat exchange, thereby achieving a highly efficient and uniform freezing effect.

[0004] However, existing fluidized bed freezing devices use ducts at the bottom of the fluidized bed to blow air onto the food. The distance between the nozzles and the fluidized bed is fixed. When the food is light, the nozzles can blow it directly up or even to the top of the device. When it falls back onto the bed after the blowing stops, it is likely to break. When the food is heavy, the distance between the nozzles is insufficient to provide enough force to lift it, preventing the food from being properly desulfurized and ensuring proper freezing. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an air guide mechanism for a fluidized bed quick-freezing device, which can adjust the distance between the air nozzle and the fluidized bed according to the frozen food, thereby improving the freezing effect and freezing efficiency of the food.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0007] A fluidized bed quick-freezing device includes a fluidized bed quick-freezing device for quick-freezing food. The device contains a fluidized bed, and below the fluidized bed is a guide air mechanism for blowing air onto the food on the fluidized bed. Outside the fluidized bed quick-freezing device are a refrigeration chamber for providing cold air to the guide air mechanism and a blower for blowing cold air from the refrigeration chamber into the guide air mechanism. The guide air mechanism includes a lifting plate mounted at the bottom of the fluidized bed quick-freezing device via a first lifting electric cylinder. The lifting plate has several sets of air guide pipes, and several sets of air nozzles for blowing air onto the food on the fluidized bed are arranged side-by-side on the air guide pipes. The air guide pipes are rotatably mounted on the lifting plate via a swing mechanism. Outside the fluidized bed quick-freezing device is a PLC controller for controlling the operation of the guide air mechanism. The output of the PLC controller is connected to the input of the first lifting electric cylinder and the swing mechanism.

[0008] To further optimize the technical solution, the swing mechanism includes a rotating rod mounted on a lifting plate below the air guide pipe via bearing seats on both sides. The air guide pipe is positioned above the rotating rod. A swing motor for driving the rotating rod to rotate is mounted on the side end of the bearing seat. The input end of the swing motor is connected to the output end of the PLC controller.

[0009] To further optimize the technical solution, the air duct is mounted on the rotating rod via a clamp.

[0010] To further optimize the technical solution, an air guide plate is provided above the fluidized bed to guide the airflow.

[0011] To further optimize the technical solution, the air guide plate is installed inside the fluidized quick-freezing device via a second lifting electric cylinder, and the input end of the second lifting electric cylinder is connected to the output end of the PLC controller.

[0012] To further optimize the technical solution, a filter cover is provided on the blower nozzle to prevent food residue from falling into the blower nozzle.

[0013] To further optimize the technical solution, a corrugated pipe is installed between the air duct and the air guide fan.

[0014] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0015] This utility model provides an air guide mechanism for a fluidized bed quick-freezing device. By setting a telescopic electric cylinder to adjust the distance between the air nozzle and the fluidized bed, and setting an adjustable guide plate above the fluidized bed, the blown air is reversed and blown downwards, so that the quick-frozen food has more comprehensive contact with the cold air, thereby improving the efficiency and quality of food freezing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the rotating rod and the air duct of this utility model.

[0018] The components are: 1. fluidized bed quick-freezing device, 2. fluidized bed, 3. first lifting cylinder, 4. lifting plate, 5. bearing seat, 6. rotating rod, 7. swing motor, 8. air duct, 9. clamp, 10. air nozzle, 11. refrigeration box, 12. air guide fan, 13. corrugated pipe, 14. second lifting cylinder, 15. air guide plate, 16. groove, 17. filter cover. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] A fluidized bed quick-freezing device with an air guide mechanism, combined with Figures 1 to 2 As shown, the device includes a fluidized bed freezing apparatus 1, which contains a fluidized bed 2. An air guide mechanism is located below the fluidized bed 2 to quickly freeze the food on it. A refrigeration chamber 11 and a blower 12 are located outside the fluidized bed freezing apparatus 1. The refrigeration chamber 11 provides cold air to the air guide mechanism, and the blower 12 blows the cold air from the refrigeration chamber into the air guide mechanism. A PLC controller is located outside the fluidized bed freezing apparatus 1 to control the operation of the air guide mechanism. The output of the PLC controller is connected to the input of the blower.

[0021] The air guiding mechanism includes a lifting plate 4 mounted at the bottom of the fluidized bed quick-freezing device 1 via a first lifting electric cylinder 3. Several sets of air guiding pipes 8 are mounted on the lifting plate 4, and several sets of air nozzles 10 are arranged side-by-side on the air guiding pipes 8 to blow air onto the food on the fluidized bed 2. Each set of air nozzles 10 consists of two symmetrically arranged nozzles, both located above the air guiding pipes 8, which increases the blowing surface area of ​​the nozzles and ensures uniform airflow. The input end of the first lifting electric cylinder 3 is connected to the output end of the PLC controller. The first lifting electric cylinder drives the lifting plate to move up and down to adjust the height of the air nozzles. This allows the height of the air nozzles to be adjusted according to the size of different quick-frozen foods, ensuring the efficiency and quality of food quick-freezing.

[0022] A corrugated pipe 13 is provided between the air duct 8 and the air guide fan 12. During the lifting process of the lifting plate, the air duct and the air guide fan are connected by the corrugated pipe. The corrugated pipe can move with the position of the air duct to avoid damage to the air duct during long-term pulling.

[0023] A filter cover 17 is provided on the blower nozzle 10 to prevent food residue from falling into the blower nozzle.

[0024] The air duct 8 is rotatably mounted on the lifting plate 4 via a swing mechanism. The swing mechanism includes a rotating rod 6 mounted on the lifting plate 4 below the air duct 8 via bearing seats 5 on both sides. The air duct 8 is positioned above the rotating rod 6. A swing motor 7 is mounted on the side end of the bearing seats 5 to drive the rotating rod to rotate. The input end of the swing motor is connected to the output end of the PLC controller. The PLC controller controls the swing motor to drive the rotating rod to swing, thereby causing the air nozzle to swing, improving the uniformity of airflow.

[0025] The air duct 8 is fixed to the rotating rod by a clamp 9, thus securing the air duct to the clamp. A groove 16 is provided on the rotating rod 6, and the bottom end of the air duct 8 is placed in the groove to prevent the air duct from shifting during the oscillation process.

[0026] A guide plate 15 is installed above the fluidized bed 2 to guide the incoming air. The guide plate 15 is installed inside the fluidized quick-freezing device 1 via a second lifting electric cylinder 14. The input end of the second lifting electric cylinder is connected to the output end of the PLC controller. The height of the guide plate is adjusted according to the size and type of quick-frozen food to guide the air blown from the nozzle, so that the air acts on the surface of the food and improves the quick-freezing efficiency.

[0027] In operation, this invention adjusts the height of the blower nozzle using a first lifting electric cylinder and the height of the air guide plate using a second lifting electric cylinder, according to the specifications of the frozen food. After the air guide fan is started, the cold air in the refrigeration chamber is blown onto the food on the fluidized bed through the blower nozzle, causing the food on the fluidized bed to be suspended. The blown air is guided by the air guide plate, causing the air to blow downwards from the top of the food, making the frozen food come into more comprehensive contact with the cold air, thus improving the efficiency and quality of food freezing.

Claims

1. A guide air mechanism for a fluidized bed quick-freezing device, comprising a fluidized bed quick-freezing device (1) for quick-freezing food, wherein a fluidized bed (2) is disposed inside the fluidized bed (2), and a guide air mechanism for blowing air onto the food on the fluidized bed (2) is disposed below the fluidized bed (2), and a refrigeration chamber (11) for providing cold air to the guide air mechanism and a blower (12) for blowing cold air from the refrigeration chamber into the guide air mechanism are disposed outside the fluidized bed quick-freezing device (1); characterized in that: The air guiding mechanism includes a lifting plate (4) installed at the bottom of the fluidized bed quick-freezing device (1) via a first lifting electric cylinder (3). Several sets of air guiding pipes (8) are installed on the lifting plate (4). Several sets of air blowing nozzles (10) for blowing air onto the food on the fluidized bed (2) are installed side by side on the air guiding pipes (8). The air guiding pipes (8) are rotatably installed on the lifting plate (4) via a swing mechanism. A PLC controller for controlling the operation of the air guiding mechanism is installed on the outside of the fluidized bed quick-freezing device (1). The output end of the PLC controller is connected to the input end of the first lifting electric cylinder and the swing mechanism.

2. The air guide mechanism for a fluidized bed quick-freezing device according to claim 1, characterized in that: The swing mechanism includes a rotating rod (6) mounted on a lifting plate (4) below the air duct (8) via bearing seats (5) on both sides. The air duct (8) is mounted above the rotating rod (6). A swing motor (7) for driving the rotating rod to rotate is mounted on the side end of the bearing seat (5). The input end of the swing motor is connected to the output end of the PLC controller.

3. The air guide mechanism for a fluidized bed quick-freezing device according to claim 2, characterized in that: The air duct (8) is mounted on the rotating rod (6) by a clamp (9).

4. The air guide mechanism for a fluidized bed quick-freezing device according to claim 1, characterized in that: A guide vane (15) for guiding the airflow is provided above the fluidized bed (2).

5. The air guide mechanism for a fluidized bed quick-freezing device according to claim 4, characterized in that: The air guide plate (15) is set inside the fluidized quick-freezing device (1) by the second lifting electric cylinder (14), and the input end of the second lifting electric cylinder is connected to the output end of the PLC controller.

6. The air guide mechanism for a fluidized bed quick-freezing device according to claim 1, characterized in that: The blower nozzle (10) is provided with a filter cover (17) to prevent food residue from falling into the blower nozzle.

7. The air guide mechanism for a fluidized bed quick-freezing device according to claim 1, characterized in that: A corrugated pipe (13) is provided between the air duct (8) and the air blower (12).

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