A circulating drying device for processing fish chunks

Abstract

This invention provides a circulating drying device for processing fish chunks, relating to the field of fish chunk drying technology. It includes a frame assembly, an air-cooling assembly, a filtering assembly, a lower conveying assembly, an upper infrared assembly, a lower infrared assembly, a buffer assembly, a receiving assembly, side baffles, and a cleaning assembly. The upper part of the frame assembly is equipped with an upper conveying assembly for conveying fish chunks. The air-cooling assembly is located on top of the upper conveying assembly to provide the cold airflow required for drying. The frame assembly includes a fixed support frame and side plates, with mounting cavities on the side plates. The filtering assembly is located at the air inlet of the air-cooling assembly to filter the incoming air. Through the upper and lower infrared assemblies, the fish chunks can be dried using infrared light combined with air cooling. The drying process takes place in a relatively low-temperature environment, maximizing the preservation of the original white or golden color of the fish meat.

Description

Technical Field

[0001] This invention relates to the field of fish block drying technology, specifically a circulating drying device for processing fish blocks. Background Technology

[0002] In the production of ready-to-eat large yellow croaker, the drying process plays a crucial role in product quality. The drying effect directly affects the taste, shelf life, and nutritional value of the ready-to-eat large yellow croaker. If the drying is insufficient, the moisture content in the fish meat will be too high, which can easily lead to bacterial growth, shorten the product's shelf life, and make the fish meat soft and lose its proper chewiness; while over-drying will make the fish meat dry and hard, resulting in the loss of nutrients and a significant reduction in taste.

[0003] In related technologies, such as the circulating drying method for processing spicy fish chunks disclosed in CN113847794B, a method for drying spicy fish chunks using hot air is provided.

[0004] However, the above methods are not suitable for drying large yellow croaker chunks. Due to excessively high temperatures or excessively long drying times, the color of the fish chunks often changes. The originally white or golden fish meat may become dull and burnt, affecting the appearance and appetite of the product. High temperatures will also greatly reduce the flavor of the fish chunks, destroying the fresh and fragrant taste of the fish meat itself, and even producing some burnt taste. Moreover, high temperatures will accelerate the decomposition and loss of nutrients. Nutrients such as proteins and vitamins will have their structures destroyed at high temperatures, resulting in a significant reduction in nutritional value. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a circulating drying device for processing fish chunks, which solves the problem that traditional high-temperature hot air drying is unsuitable for drying and processing large yellow croaker chunks.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a circulating drying device for processing fish chunks, comprising a frame assembly, wherein the upper part of the frame assembly is provided with an upper conveying assembly for conveying fish chunks, and further comprising:

[0007] An air-cooled assembly, located on top of the upper conveying assembly, is used to provide the cold airflow required for drying;

[0008] The frame assembly includes a support frame and a side plate fixed together, and the side plate is provided with a mounting cavity;

[0009] A filter assembly is located at the air inlet of the air-cooling assembly and is used to filter the incoming air.

[0010] A lower conveying assembly, located below the upper conveying assembly, is used to convey fish pieces in the opposite direction;

[0011] An upper infrared component is located directly above the upper conveying component and is used to provide an infrared radiation source and a cold air vent.

[0012] The lower infrared component is located directly above the lower conveying component and is used to provide an infrared radiation source and a cold air vent.

[0013] A buffer assembly, located inside the frame assembly, is used to buffer fish pieces falling from the upper conveyor assembly and to flip the fish pieces.

[0014] A receiving component, which is disposed inside the mounting cavity, is used to receive the fallen fish pieces, sewage, and impurities.

[0015] Side baffle, which is detachably installed inside the side plate, is used to block the fish block conveying position;

[0016] A cleaning component, located on the frame assembly, is used to passively clean the conveying parts of the upper conveying assembly. Through the upper and lower infrared components, infrared light combined with air cooling is used to dry the fish pieces. The drying process takes place in a relatively low-temperature environment, maximizing the preservation of the original white or golden color of the fish meat.

[0017] Preferably, the air-cooled assembly includes a fan mounted on the top of the side plate via a base, and the air outlet of the fan is fixedly connected to a ventilation duct.

[0018] Preferably, the filter assembly includes a filter housing fixedly installed at the air inlet of the fan, a filter element is provided inside the filter housing, a maintenance plate is detachably connected to the side of the filter housing away from the fan, an air inlet is provided on the side wall of the filter housing, and mounting seats are fixedly connected to the filter housing on both sides of the air inlet, and filter plates are detachably installed on the mounting seats.

[0019] Preferably, the upper conveying assembly includes a conveying motor, an upper conveying roller 1 and an upper conveying roller 2 rotatably mounted on the side plate, the conveying motor being fixedly mounted on the side plate, the output end of the conveying motor being fixedly connected to the upper conveying roller 1, and an upper conveying net being provided between the upper conveying roller 1 and the upper conveying roller 2; the lower conveying assembly includes a transmission component, a lower conveying roller 1 and a lower conveying roller 2 rotatably mounted on the side plate, and a lower conveying net being provided between the lower conveying roller 1 and the lower conveying roller 2, the transmission component being used to transmit the power of the upper conveying roller 2 in the reverse direction to the lower conveying roller 2.

[0020] Preferably, the upper infrared component includes an upper air shell and an upper frame fixedly installed inside the side panel. The fan is connected to the upper air shell via a ventilation duct. The lower part of the upper air shell is uniformly provided with upper reflectors, and an upper air outlet is provided between adjacent upper reflectors. Upper infrared heating tubes are uniformly installed inside the upper frame. The lower infrared component includes a lower air shell and a lower frame fixedly installed inside the side panel. The lower part of the lower air shell is uniformly provided with lower reflectors, and a lower air outlet is provided between adjacent lower reflectors. The lower air shell has a flat air outlet and a horizontal air outlet at one end near the buffer component. The flat air outlet is used to generate airflow towards the buffer component, and the horizontal air outlet is located below the flat air outlet to generate horizontal airflow. Lower infrared heating tubes are uniformly installed inside the lower frame.

[0021] Preferably, the buffer assembly includes a guide plate, a card holder is fixedly connected to the upper part of the guide plate, a card post is fixedly connected to the inner side of the card holder, the guide plate includes an inclined section and a vertical section, a rotating plate is rotatably connected to the side of the vertical section near the lower conveying assembly, and a support spring is fixedly connected between the lower end of the rotating plate and the vertical section.

[0022] Preferably, the receiving assembly includes a receiving box that can be detachably installed in the mounting cavity, the inner bottom surface of the receiving box is a receiving slope, and a waste discharge pipe is fixedly connected to the outer side of the receiving box.

[0023] Preferably, the cleaning assembly includes a cleaning shaft rotatably mounted on the inner side of the side plate, a lightweight roller fixedly connected to the cleaning shaft, cleaning bristles evenly fixedly connected to the circumferential surface of the lightweight roller, the cleaning bristles contacting the upper conveyor mesh, and an impurity box located directly below the lightweight roller, the impurity box being placed on the inner side frame of the side plate.

[0024] This invention provides a circulating drying device for processing fish fillets. It has the following beneficial effects:

[0025] 1. The present invention, through the setting of upper infrared component and lower infrared component, can use infrared light and air cooling to dry fish pieces. The drying process is carried out in a relatively low temperature environment, which can preserve the original white or golden color of the fish meat to the greatest extent.

[0026] 2. The present invention, through the buffer component, can buffer the falling fish pieces and flip them over, ensuring that both sides of the fish pieces are dried evenly, which is suitable for drying fish pieces with high thickness. Attached Figure Description

[0027] Figure 1 This is a perspective view of the entire invention;

[0028] Figure 2 This is a perspective view of the entire invention from another angle;

[0029] Figure 3 This is a cross-sectional view of the entire invention;

[0030] Figure 4 This is a perspective view of the frame assembly in this invention;

[0031] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0032] Figure 6 This is a perspective view of the cleaning component in this invention;

[0033] Figure 7 This is a perspective view of the air-cooled component and the filter component in this invention;

[0034] Figure 8 This is a split perspective view of the filter component in this invention;

[0035] Figure 9 This is a split perspective view of the upper infrared component in this invention;

[0036] Figure 10 This is a perspective view of the upper conveying component and the lower conveying component in this invention;

[0037] Figure 11 This is a split perspective view of the lower infrared component in this invention;

[0038] Figure 12 This is a split perspective view of the buffer component in this invention;

[0039] Figure 13 This is a perspective view of the receiving component in this invention.

[0040] The components include: 1. Frame assembly; 2. Cleaning assembly; 3. Air-cooling assembly; 4. Filter assembly; 5. Upper infrared assembly; 6. Upper conveyor assembly; 7. Lower infrared assembly; 8. Buffer assembly; 9. Lower conveyor assembly; 10. Receiving assembly; 11. Side baffle; 101. Support frame; 102. Side plate; 103. Mounting cavity; 201. Impurity box; 202. Lightweight roller; 203. Cleaning shaft; 204. Cleaning brush; 301. Fan; 302. Connecting ventilation duct; 303. Base; 401. Filter housing; 402. Filter plate; 403. Maintenance plate; 404. Filter element; 405. Mounting base; 501. Upper air shell; 502. Upper reflector; 503. Upper air outlet; 504. Upper... Frame; 505, Upper Infrared Heating Tube; 601, Conveyor Motor; 602, Upper Conveyor Roller 1; 603, Upper Conveyor Net; 604, Upper Conveyor Roller 2; 605, Transmission Components; 701, Lower Air Shell; 702, Lower Reflector Plate; 703, Lower Air Outlet; 704, Flat Air Outlet; 705, Horizontal Air Outlet; 706, Lower Frame; 707, Lower Infrared Heating Tube; 801, Card Seat; 802, Card Post; 803, Guide Plate; 804, Support Spring; 805, Rotating Plate; 8031, Inclined Section; 8032, Vertical Section; 901, Lower Conveyor Roller 1; 902, Lower Conveyor Net; 903, Lower Conveyor Roller 2; 1001, Receiver Box; 1002, Receiver Inclined Surface; 1003, Waste Discharge Pipe. Detailed Implementation

[0041] 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.

[0042] like Figures 1-13 As shown, this embodiment of the invention provides a circulating drying device for processing fish chunks, including a frame assembly 1. The frame assembly 1 includes a support frame 101 and a side plate 102 fixed together, and the side plate 102 is provided with an installation cavity 103.

[0043] refer to Figure 4 The support frame 101 and the side plate 102 together provide a drying space and support position for the installation of other components. They can be made of square tubes and plates welded together.

[0044] refer to Figure 1 , Figure 2 , Figure 3 , Figure 10The upper part of the frame assembly 1 is provided with an upper conveying assembly 6 for conveying fish pieces. The upper conveying assembly 6 includes a conveying motor 601, an upper conveying roller 602 and an upper conveying roller 604 rotatably mounted on the side plate 102. The conveying motor 601 is fixedly mounted on the side plate 102. The output end of the conveying motor 601 is fixedly connected to the upper conveying roller 602. An upper conveying net 603 is provided between the upper conveying roller 602 and the upper conveying roller 604.

[0045] During the conveying operation, under the action of the external power supply and controller, the conveying motor 601 drives the upper conveying roller 602 to rotate. The upper conveying roller 602 and the upper conveying roller 604 can drive the upper conveying net 603 to move. The upper conveying net 603 is made of metal material to ensure that the fish pieces can be supported evenly and facilitate the blood on the fish pieces to fall off.

[0046] Also includes:

[0047] refer to Figure 1 , Figure 3 , Figure 7 Air-cooled component 3 is located on top of upper conveying component 6 and is used to provide the cold airflow required for drying. Air-cooled component 3 includes a fan 301 mounted on top of side plate 102 via base 303, and the air outlet end of fan 301 is fixedly connected to ventilation pipe 302.

[0048] When providing cold airflow, the fan 301 operates, drawing in outside air and outputting it through the ventilation duct 302, providing sufficient airflow for drying the fish pieces. The fan 301 can be a centrifugal fan to provide high-speed airflow.

[0049] refer to Figure 1 , Figure 3 , Figure 7 , Figure 8 The filter assembly 4 is located at the air inlet end of the air-cooled assembly 3 and is used to filter the incoming air. The filter assembly 4 includes a filter housing 401 fixedly installed at the air inlet end of the fan 301. The filter housing 401 is provided with a filter element 404. A maintenance plate 403 is detachably connected to the side of the filter housing 401 away from the fan 301. An air inlet is provided on the side wall of the filter housing 401. Mounting seats 405 are fixedly connected to the filter housing 401 and on both sides of the air inlet. A filter plate 402 is detachably installed on the mounting seats 405.

[0050] During filtration, when outside air enters, it first passes through the filter plate 402 to filter out large particulate impurities in the air, and then passes through the filter element 404 to filter out tiny impurities in the air. The filter element 404 can be purchased directly, for example, as a central air conditioning filter element.

[0051] During maintenance, filter plate 402 can be removed and replaced, and the screws on maintenance plate 403 can be unscrewed and removed to replace filter element 404. Maintenance is convenient.

[0052] refer to Figure 3 , Figure 10 The lower conveying component 9 is located below the upper conveying component 6 and is used to convey fish pieces in the opposite direction. The lower conveying component 9 includes a transmission component 605, a lower conveying roller 901 and a lower conveying roller 903 rotatably mounted on the side plate 102, and a lower conveying net 902 between the lower conveying roller 901 and the lower conveying roller 903. The transmission component 605 is used to transmit the power of the upper conveying roller 604 in the opposite direction to the lower conveying roller 903.

[0053] During the lower conveying process, due to the power transmission of the transmission component 605, the second lower conveying roller 903 will rotate in the opposite direction. The first lower conveying roller 901 and the second lower conveying roller 903 can drive the lower conveying net 902 to move, transporting the fish pieces in the opposite direction and drying the other side of the fish pieces.

[0054] The transmission component 605 adopts an upper pulley fixedly connected to the upper conveyor roller 604 and a lower pulley fixedly connected to the lower conveyor roller 903. Two small pulleys that can rotate are set on both sides of the lower pulley. The inner side of the belt passes over the upper pulley and the two small pulleys, and the outer side of the belt passes over the upper part of the lower pulley, thereby realizing the reverse transmission of power.

[0055] refer to Figure 2 , Figure 3 , Figure 9 The upper infrared component 5 is located directly above the upper conveying component 6 and is used to provide an infrared radiation source and a cold air outlet. The upper infrared component 5 includes an upper air shell 501 and an upper frame 504 that are fixedly installed inside the side plate 102. The fan 301 is connected to the upper air shell 501 through a ventilation pipe 302. The lower part of the upper air shell 501 is uniformly provided with upper reflectors 502, and an upper air outlet 503 is provided between adjacent upper reflectors 502. The upper infrared heating tubes 505 are uniformly installed inside the upper frame 504.

[0056] During the upper drying stage, the upper infrared heating tube 505 generates infrared rays for drying, and the upper air vent 503 blows cold air downwards. The upper air vent 503 is evenly distributed, generating a uniform cold airflow. Under the interaction of infrared rays and cold airflow, the fish pieces can be dried. The upper reflector 502 is used to block and reflect the infrared rays emitted upwards by the upper infrared heating tube 505, improving the utilization efficiency of infrared rays. The longitudinal cross-sectional shape of the upper reflector 502 is V-shaped to prevent infrared ray leakage.

[0057] refer to Figure 2 , Figure 3, Figure 11 The lower infrared component 7 is located directly above the lower conveying component 9 and is used to provide an infrared radiation source and a cold air outlet. The lower infrared component 7 includes a lower air shell 701 and a lower frame 706 fixedly installed inside the side plate 102. The lower air shell 701 is uniformly provided with lower reflectors 702 at its lower part, and a lower air outlet 703 is provided between adjacent lower reflectors 702. The lower air shell 701 is provided with a flat air outlet 704 and a horizontal air outlet 705 at one end near the buffer component 8. The lower infrared heating tubes 707 are uniformly installed inside the lower frame 706.

[0058] During the lower drying stage, the lower infrared heating tube 707 generates infrared rays for drying, and the lower air vent 703 blows cold air downwards. The lower air vent 703 is evenly positioned, so the airflow velocity from the lower air vent 703 is uniform. The lower reflector 702 is used to block and reflect the infrared rays emitted upwards by the upper infrared heating tube 505, improving the utilization efficiency of infrared rays. The longitudinal cross-sectional shape of the lower reflector 702 is V-shaped to avoid infrared ray leakage. The flat air vent 704 is inclined and can generate a sheet-like airflow that blows towards the buffer assembly 8, which can slow down the falling speed of the fish pieces and make the fish pieces stick tightly to the surface of the guide plate 803. The friction between the fish pieces and the guide plate 803 further slows down the falling speed of the fish pieces. Considering that excessive friction will damage the surface of the fish pieces, the guide plate 803 can be made of a low-friction material and food oil can be sprayed on the surface. The horizontal air vent 705 is below the flat air vent 704 and can generate a horizontal airflow to slow down the fish pieces on the rotating plate 805.

[0059] The drying process described above is carried out in a relatively low-temperature environment. Infrared rays precisely target the moisture inside the fish pieces, promoting rapid evaporation. Cold air promptly removes moisture and controls the temperature, preventing changes in color, flavor, and nutrition caused by overheating. This method of drying preserves the original white or golden color of the fish to the greatest extent possible. Nutrients are also effectively protected, with almost no loss of proteins, vitamins, and other nutrients, providing consumers with nutritious fish products.

[0060] The upper infrared heating tube 505 and the lower infrared heating tube 707 are core components of the drying equipment. They typically use quartz lamps, but can also be replaced with ceramic heaters or metal heaters as infrared radiation sources. These radiation sources can generate infrared rays of specific wavelengths. According to the characteristics of the fish pieces and the drying requirements, the emission intensity and wavelength of the infrared rays are precisely controlled to ensure that the fish pieces can fully absorb infrared energy and achieve efficient drying. For example, for fish pieces of different types and sizes, by adjusting the power and emission angle of the infrared emitting device, the infrared rays can be evenly irradiated to all parts of the fish pieces.

[0061] To ensure precise temperature and humidity control, high-precision temperature and humidity sensors can be installed inside the drying chamber. Combined with an external controller and a built-in system, this allows for real-time monitoring of temperature and humidity data within the drying chamber. If the temperature or humidity deviates from the preset optimal drying parameters, the system will automatically adjust. If the temperature is too high, the power of the infrared emitter will be automatically reduced; if the humidity is too high, the airflow of the cold air circulation system will be increased to accelerate moisture removal. The system can also be connected to computers or mobile phones, allowing operators to remotely monitor and adjust drying parameters, enabling intelligent and convenient operation.

[0062] refer to Figure 2 , Figure 3 , Figure 12 The buffer assembly 8 is located inside the frame assembly 1 and is used to buffer the fish pieces that fall from the upper conveying assembly 6 and flip the fish pieces. The buffer assembly 8 includes a guide plate 803, a card seat 801 is fixedly connected to the upper part of the guide plate 803, a card post 802 is fixedly connected to the inner side of the card seat 801, the guide plate 803 includes an inclined section 8031 ​​and a vertical section 8032, a rotating plate 805 is rotatably connected to the side of the vertical section 8032 near the lower conveying assembly 9, and a support spring 804 is fixedly connected between the lower end of the rotating plate 805 and the vertical section 8032.

[0063] During the buffering operation, as the fish pieces pass through the upper conveyor assembly 6, under the influence of gravity, the fish pieces will contact the guide plate 803 in a parabolic shape and fall along the inclined section 8031 ​​and the vertical section 8032. Due to the sheet-like airflow blown out by the flat air vent 704, the fish pieces can be blocked and kept close to the inclined section 8031, which slows down the falling speed of the fish pieces and ensures good quality. When the fish pieces land on the rotating plate 805, due to the influence of gravity and falling speed, the support spring 804 will be compressed. The support spring 804 absorbs some potential energy and then falls onto the lower conveyor net 902 under the action of the horizontal airflow blown out by the horizontal air vent 705. The support spring 804 mainly plays a buffering role, but it can also be replaced by other buffering components, such as airbags or dampers.

[0064] refer to Figure 3 , Figure 13 The receiving component 10 is located in the mounting cavity 103 and is used to receive the falling fish pieces, sewage and impurities. The receiving component 10 includes a receiving box 1001 that is detachably installed in the mounting cavity 103. The inner bottom surface of the receiving box 1001 is a receiving slope 1002, and a discharge pipe 1003 is fixedly connected to the outer side of the receiving box 1001.

[0065] During the receiving process, a small amount of water will adhere to the surface of the fish pieces after the cleaning process. A small amount of water will also be generated when the fish pieces are dried. Under the action of gravity, this water can fall into the receiving box 1001. Under the action of the receiving inclined surface 1002, the water will flow to the side of the waste discharge pipe 1003 and then be discharged through the waste discharge pipe 1003.

[0066] refer to Figure 1 , Figure 3 , Figure 5 Side baffle 11, which can be detachably installed inside the side plate 102, is used to block the fish block conveying position;

[0067] The side baffle 11 can be fixed inside the side plate 102 with screws to ensure that the fish pieces are transported in the center.

[0068] refer to Figure 1 , Figure 3 , Figure 6 Cleaning component 2 is located on the frame assembly 1 and is used to passively clean the conveying parts of the upper conveying assembly 6. The cleaning component 2 includes a cleaning shaft 203 rotatably mounted on the inner side of the side plate 102. A lightweight roller 202 is fixedly connected to the cleaning shaft 203. Cleaning bristles 204 are evenly fixedly connected to the circumferential surface of the lightweight roller 202. The cleaning bristles 204 are in contact with the upper conveying net 603. An impurity box 201 is located directly below the lightweight roller 202 and is placed on the inner side of the frame assembly 102.

[0069] During the cleaning operation, under the action of the upper conveyor 603, the cleaning brush 204 drives the lightweight roller 202 to rotate. The cleaning brush 204 is made of metal bristles, which have a certain elasticity and hardness. The metal bristles can be inserted into the mesh of the upper conveyor 603 and push out the impurities adhering to the mesh. Thus, under the action of gravity, the impurities can fall into the impurity box 201. The impurities here are generally fish skin, which are not very sticky and can fall off under a certain pushing force.

[0070] The inventor's newly developed circulating drying device for fish chunk processing can precisely control parameters such as drying temperature, time, and wind speed to achieve uniform drying of large yellow croaker chunks. This ensures that each piece of large yellow croaker achieves the best drying effect, thereby guaranteeing the quality stability and consistency of ready-to-eat large yellow croaker, meeting the needs of large-scale production, and providing strong support for the booming development of the ready-to-eat large yellow croaker market.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating drying device for fish block processing, comprising a frame assembly (1), an upper conveying assembly (6) for conveying fish blocks is arranged on the upper part of the frame assembly (1), characterized in that, Also include: The air cooling assembly (3) is provided on the top of the upper conveying assembly (6), which is used to provide the cold air flow required for drying; The air cooling assembly (3) comprises a fan (301); The frame assembly (1) comprises a support frame (101) and a side plate (102) fixed as a whole, and the side plate (102) is provided with a mounting cavity (103); The filter assembly (4) is provided at the air inlet end of the air cooling assembly (3) for filtering the incoming air; The lower conveying assembly (9) is arranged below the upper conveying assembly (6) for conveying fish blocks in the opposite direction; The upper infrared assembly (5) is arranged directly above the upper conveying assembly (6) for providing an infrared radiation source and a cold air outlet; The lower infrared assembly (7) is arranged directly above the lower conveying assembly (9) for providing an infrared radiation source and a cold air outlet; The buffer assembly (8) is arranged on the inner side of the frame assembly (1) for buffering the fish blocks falling from the upper conveying assembly (6) and turning over the fish blocks; The buffer assembly (8) comprises a guide plate (803), the upper part of the guide plate (803) is fixedly connected with a clamping seat (801), the inner side of the clamping seat (801) is fixedly connected with a clamping column (802), the guide plate (803) comprises an inclined section (8031) and a vertical section (8032), the vertical section (8032) is rotatably connected with a rotating piece (805) on the side close to the lower conveying assembly (9), and a supporting spring (804) is fixedly connected between the lower end of the rotating piece (805) and the vertical section (8032); The upper infrared assembly (5) comprises an upper air casing (501) and an upper frame (504) fixedly installed on the inner side of the side plate (102), the fan (301) is communicated with the upper air casing (501) through a communication air pipe (302), the lower part of the upper air casing (501) is uniformly provided with an upper reflecting plate (502), adjacent upper reflecting plates (502) are provided with an upper air outlet (503), and the upper frame (504) is uniformly provided with an upper infrared heating pipe (505); The lower infrared assembly (7) comprises a lower air casing (701) and a lower frame (706) fixedly installed on the inner side of the side plate (102), the lower part of the lower air casing (701) is uniformly provided with a lower reflecting plate (702), adjacent lower reflecting plates (702) are provided with a lower air outlet (703), one end of the lower air casing (701) close to the buffer assembly (8) is provided with a flat air outlet (704) and a horizontal air outlet (705), the flat air outlet (704) is used for generating air flow blowing to the buffer assembly, the horizontal air outlet (705) is arranged below the flat air outlet (704) and is used for generating horizontal air flow, and the lower frame (706) is uniformly provided with a lower infrared heating pipe (707); The receiving assembly (10) is arranged in the mounting cavity (103) for receiving the falling fish blocks, sewage and impurities; The side baffle (11) is detachably mounted in the side plate (102) and used for blocking the fish block conveying position. The cleaning assembly (2) is arranged on the frame assembly (1) and used for passively cleaning the conveying part of the upper conveying assembly (6).

2. A fish block processing circulating drying device according to claim 1, characterized in that: The air cooling assembly (3) comprises a fan (301) mounted on the top of the side plate (102) through a base (303), and the air outlet end of the fan (301) is fixedly connected with a communication air pipe (302).

3. A fish block processing circulating drying device according to claim 2, characterized in that: The filter assembly (4) comprises a filter shell (401) fixedly mounted on the air inlet end of the fan (301), and the filter shell (401) is internally provided with a filter core (404). A maintenance plate (403) is detachably connected to the side of the filter shell (401) away from the fan (301). An air inlet is arranged on the sidewall of the filter shell (401), and mounting seats (405) are fixedly connected to the filter shell (401) and located on the two sides of the air inlet. Filter plates (402) are detachably mounted on the mounting seats (405).

4. The fish block processing circulating drying device according to claim 1, characterized in that: The upper conveying assembly (6) comprises an upper conveying motor (601), an upper conveying roller one (602) and an upper conveying roller two (604) rotatably mounted on the side plate (102). The upper conveying motor (601) is fixedly mounted on the side plate (102), and the output end of the upper conveying motor (601) is fixedly connected with the upper conveying roller one (602). An upper conveying net (603) is arranged between the upper conveying roller one (602) and the upper conveying roller two (604). The lower conveying assembly (9) comprises a transmission member (605), a lower conveying roller one (901) and a lower conveying roller two (903) rotatably arranged on the side plate (102). A lower conveying net (902) is arranged between the lower conveying roller one (901) and the lower conveying roller two (903). The transmission member (605) is used for reversely transmitting the power of the upper conveying roller two (604) to the lower conveying roller two (903).

5. The fish block processing circulating drying device according to claim 1, characterized in that: The receiving assembly (10) comprises a receiving box (1001) detachably mounted in the mounting cavity (103). The inner bottom surface of the receiving box (1001) is a receiving inclined surface (1002), and the outer side of the receiving box (1001) is fixedly connected with a impurity discharge pipe (1003).

6. The fish block processing circulating drying device according to claim 1, characterized in that: The cleaning assembly (2) comprises a cleaning shaft (203) rotatably mounted on the inner side of the side plate (102). The cleaning shaft (203) is fixedly connected with a light roller (202). The circumferential surface of the light roller (202) is uniformly fixedly connected with cleaning bristles (204). The cleaning bristles (204) are in contact with the upper conveying net (603). A impurity box (201) is arranged directly below the light roller (202), and the impurity box (201) is placed on the frame on the inner side of the side plate (102).

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