A spiral belt type low-temperature drying device for dried fish

Abstract

The present invention discloses a spiral-belt-type low-temperature drying device for dried fish, which relates to the technical field of dried fish production. The device comprises a low-temperature mechanism, which is arranged in the middle of the inner side of a slide rail and is used to place fish fillets. Airflow flows rapidly inside the low-temperature mechanism, removing moisture from the surface of the fish fillets and drying the fish fillets at low temperature. The device comprises a cylinder body, the inner side of which is slidably connected to a plunger rod, and the surface of which is fixedly connected to a bearing assembly. In the spiral-belt-type low-temperature drying device for dried fish, the plunger rod slides downward on the inner side of the cylinder body, and the bearing assembly and the sealing assembly are in close contact. The saving mechanism, driven by the slide, approaches the bearing assembly and conveys the airflow to a position between the bearing assembly and the sealing assembly. The sealing assembly heats the airflow, and a cooler cools the hydraulic oil inside the cylinder body, thereby solving the problem of large-scale destruction of amino acids in the fish fillets caused by high-temperature drying.

Description

Technical Field

[0001] The invention relates to the technical field of dried fish making, in particular to a spiral belt type dried fish low-temperature drying device. Background Art

[0002] The basic goal of material drying is to reduce the moisture content without destroying the active ingredients, content, and physical and chemical properties of the material. Therefore, the appropriate drying method and equipment must be selected according to the thermal characteristics of the material. Generally, heat-sensitive materials need to be dried below 60 degrees Celsius to protect the presence of active ingredients such as VC, VE, polysaccharides, adenosine, and bioaromatic hydroxyl groups. The drying temperature of existing drying equipment is above 150-300 degrees Celsius, and the preheating energy consumption and operating energy consumption are high, which is not suitable for drying heat-sensitive materials. Existing vacuum freeze drying and low-temperature flat plate dryers using hot water as a heat source have temperature requirements suitable for drying heat-sensitive materials, but have disadvantages such as slow speed, low production capacity, large footprint, and high energy consumption. They are not suitable for large-scale production of low-temperature drying materials, and are even less suitable for low-temperature drying of slurry materials with high moisture content. Currently, fish fillets are dried for a long time and at a high temperature, which causes a large amount of amino acids in the fish fillets to be destroyed and serious loss of true protein. The loss rate of true protein in fish fillets is as high as 15-30%, which makes the intrinsic quality of fish fillets low and reduces the cost performance. Fish fillets are dried entirely in a horizontal drying tank combination. The fish meat is dried for a long time with high-temperature steam, resulting in a large amount of steam waste and excessive heat energy consumption.

[0003] The existing spiral belt type low-temperature drying device for dried fish has the problems of large-scale destruction of amino acids in fish fillets due to structural design defects, and energy waste caused by long-term drying of fish fillets with high-temperature steam. Summary of the Invention

[0004] The present invention provides a spiral belt type dried fish low-temperature drying device, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a spiral belt type dried fish low temperature drying device, comprising

[0006] A base, wherein the top of the base is fixedly connected to a slide rail, and the inner side of the slide rail is slidably connected to a slide platform;

[0007] The low-temperature mechanism is arranged in the middle of the inner side of the slide rail and is used to place the fish fillets. The airflow flows rapidly inside the low-temperature mechanism, removing moisture from the surface of the fish fillets and drying the fish fillets at low temperature. The mechanism comprises a cylinder body, the inner side of which is slidably connected to a plunger rod, the surface of which is fixedly connected to a bearing assembly, and a sealing assembly fixedly connected above the surface of the plunger rod. The fish fillets are placed on the surface of the bearing assembly, and the sealing assembly moves downward to tightly fit the surface of the bearing assembly. Airflow flows between the bearing assembly and the sealing assembly, and the airflow quickly removes moisture from the surface of the fish fillets, thereby replacing high-temperature drying.

[0008] The saving mechanism is arranged on the top of the slide, and the slide drives the saving mechanism to slide on the surface of the slide rail. The inner side of the saving mechanism is in close contact with the surface of the bearing component. The saving mechanism is externally connected to a fan, so as to guide the airflow to the position between the bearing component and the sealing component. When the plunger rod slides upward on the inner side of the cylinder body, there is a gap between the sealing component and the bearing component. The fish fillets to be dried are placed on the surface of the bearing component, and the fish fillets are arranged in a spiral manner.

[0009] Preferably, a cooler is fixedly connected to the middle position of the inner side surface of the slide rail, the output end of the cooler is fixedly connected to the cylinder body, and a return pipe is fixedly connected to the position between the input end of the cylinder body and the cooler.

[0010] Preferably, the bearing assembly includes an extension rod, one end of the extension rod is fixedly connected to the surface of the cylinder body, and one end of the extension rod away from the cylinder body is fixedly connected to the first spiral wall.

[0011] Preferably, a rubber strip is fixedly connected to the top of the first spiral wall, and a storage platform is fixedly connected to the inner side of the first spiral wall. The surface of the storage platform is provided with holes, and fish fillets are placed on the surface of the storage platform.

[0012] Preferably, the sealing assembly includes a fixed rod, the middle position of the surface of the fixed rod is fixedly connected to the top end of the plunger rod, and the extension rod separates the cylinder body from the second spiral wall, effectively preventing the hydraulic oil temperature from rising and causing the hydraulic oil to be unable to apply downward pressure to the plunger rod, compared to directly applying a large amount of high-temperature steam to the fish fillets for drying.

[0013] Preferably, the surface of the fixing rod is fixedly connected to a second spiral wall, the inner side of the second spiral wall is fixedly connected to a baffle, a hole is opened on the surface of the baffle, and a heating rod is rotatably connected to the surface of the baffle.

[0014] Preferably, the saving mechanism includes a support platform, the top of the support platform is fixedly connected to an extrusion assembly, there are two extrusion assemblies, the top of one of the extrusion assemblies is rotatably connected to a top cover, fish fillets are placed on the surface of the support assembly, the pressure of the hydraulic oil forms a relatively sealed space between the sealing assembly and the support assembly, the hydraulic oil in the return pipe also passes through the cooler, the cooler cools the hydraulic oil, thereby increasing the pressing force of the plunger rod.

[0015] Preferably, the surface of the top cover is fixedly connected to a heating body, the surface of another extrusion component is fixedly connected to a fixed wall, there are two fixed walls, and the inner side surfaces of the fixed walls are slidably connected to a ventilation component.

[0016] Preferably, the extrusion assembly includes a sliding plate, the bottom of the sliding plate is slidably connected to the top of the slide rail, and the top of the sliding plate is fixedly connected to a semicircular tank.

[0017] Preferably, the inner side of the semicircular can is fixedly connected to an airbag wall, gas is filled inside the ear of the airbag wall, and a heat insulation sheet is fixedly connected to the surface of the airbag wall. The two sliding plates approach each other and drive the two semicircular cans to fit together. The top cover rotates so that the semicircular can is in a relatively sealed environment. The airbag wall is arranged between the semicircular can and the heat insulation sheet. Gas is introduced into the interior of the airbag wall so that the heat insulation sheets are squeezed against each other.

[0018] Preferably, the ventilation assembly includes a fixed plate, the surface of the fixed plate is fixedly connected to the inner side of the fixed wall, the inner side of the fixed plate is slidably connected to a ventilation pipe, and the inner side of the ventilation pipe is fixedly connected to the output end of the fan.

[0019] Preferably, an electric cylinder is fixedly connected to the side position of the surface of the ventilation pipe, the output end of the electric cylinder is fixedly connected to the surface of the fixed plate, and the surface of the ventilation pipe is fixedly connected to a thermal expansion gel. When the electric cylinder is away from the fixed plate, the ventilation pipe will not interfere with the second spiral wall, and the bottom of the second spiral wall forms a sealed space with the first spiral wall. The electric cylinder drives the ventilation pipe close to the second spiral wall.

[0020] The present invention provides a spiral belt-type low-temperature drying device for dried fish. It has the following beneficial effects:

[0021] 1. In this spiral belt-type low-temperature dried fish drying device, the plunger rod slides downward on the inner side of the cylinder body, and the load-bearing component and the sealing component are in close contact. The saving mechanism is driven by the slide to approach the load-bearing component. The saving mechanism conveys the airflow to the position between the load-bearing component and the sealing component. The sealing component heats the airflow, and the cooler cools the hydraulic oil in the cylinder body, which solves the problem of large-scale destruction of amino acids in fish fillets caused by high-temperature drying.

[0022] 2. The spiral belt-type low-temperature drying device for dried fish utilizes a spiral space formed between a first spiral wall and a second spiral wall. Air flows in the spiral sealed space, thereby accelerating the speed at which the gas carries moisture. The heating rod is located inside the spiral space. When the airflow passes through the heating rod, it is heated. The continuous flow of gas can effectively prevent the temperature from being too high. At the same time, the heating rod can promote the drying process of the fish fillets, achieving the effect of low-temperature drying of the fish fillets. At the same time, the storage table effectively improves space utilization.

[0023] 3. In the spiral belt-type low-temperature drying device for dried fish, the support table is driven to move in opposite directions, and the inner side of the extrusion component applies pressure to the surface of the load-bearing component, thereby improving the sealing effect between the load-bearing component and the sealing component. The ventilation component slides close to the bottom end of the load-bearing component, and the external fan of the ventilation component transports unheated airflow to replace high-temperature steam to dry the fish fillets, thereby solving the problem of energy waste caused by long-term drying of fish fillets with high-temperature steam.

[0024] 4. In this spiral-belt-type low-temperature drying device for dried fish, the surface of the heat insulation sheet is in close contact with the surface of the load-bearing component. At the same time, the output end of the electric cylinder contracts, so that the ventilation pipe is pushed to the inner side of the semicircular tank. The ventilation pipe is connected to the load-bearing component. The ventilation pipe is externally connected to a fan to convey airflow to the interior of the load-bearing component. The heat insulation sheet, heating body and sliding plate effectively prevent heat loss.

[0025] 5. In this spiral belt-type low-temperature dried fish drying device, the thermal expansion gel extends to the inner side of the second spiral wall. Airflow enters the second spiral wall through a ventilation pipe, and the airflow hits the heating rod, causing the heating rod to rotate. The rotation of the heating rod effectively prevents the local gas temperature from being too high. The temperature increase causes the thermal expansion gel to expand, thereby making the airflow direction inside the first spiral wall more certain, avoiding gas leakage that would cause poor fish drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a perspective view of the entire spiral belt-type dried fish low-temperature drying device of the present invention;

[0027] Figure 2 This is a perspective view of the interior of the spiral belt type dried fish low-temperature drying device of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the low-temperature mechanism of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the load-bearing assembly of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the sealing assembly of the present invention;

[0031] Figure 6 It is a structural diagram of the saving mechanism of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the extrusion assembly of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the ventilation component of the present invention.

[0034] In the figure: 1. base; 2. slide rail; 3. low-temperature mechanism; 31. cooler; 32. cylinder; 33. return pipe; 34. bearing assembly; 341. extension rod; 342. first spiral wall; 343. rubber strip; 344. storage table; 35. plunger rod; 36. sealing assembly; 361. fixing rod; 362. second spiral wall; 363. baffle; 364. heating rod; 4. slide; 5. saving mechanism; 51. support table; 52. extrusion assembly; 521. sliding plate; 522. semicircular tank; 523. airbag wall; 524. thermal insulation sheet; 53. top cover; 54. heating body; 55. fixing wall; 56. ventilation assembly; 561. fixing plate; 562. ventilation pipe; 563. electric cylinder; 564. thermal expansion gel. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] First embodiment: Figure 1-Figure 3 As shown, the present invention provides a technical solution: a spiral belt type dried fish low temperature drying device, comprising

[0037] A base 1, the top of the base 1 is fixedly connected to a slide rail 2, and the inner side of the slide rail 2 is slidably connected to a slide platform 4;

[0038] The low-temperature mechanism 3 is arranged in the middle of the inner side of the slide rail 2 and is used to place fish fillets. Air flows rapidly inside the low-temperature mechanism 3, removing moisture from the surface of the fish fillets and drying the fish fillets at low temperature. The low-temperature mechanism 3 includes a cylinder 32, the inner side of the cylinder 32 is slidably connected to a plunger rod 35, the surface of the cylinder 32 is fixedly connected to a bearing assembly 34, and a sealing assembly 36 is fixedly connected above the surface of the plunger rod 35. The fish fillets are placed on the surface of the bearing assembly 34, and the sealing assembly 36 moves downward to tightly fit the surface of the bearing assembly 34. Air flows between the bearing assembly 34 and the sealing assembly 36, and the airflow quickly removes moisture from the surface of the fish fillets, thereby replacing high-temperature drying.

[0039] A cooler 31 is fixedly connected to the middle of the inner side of the slide rail 2, the output end of the cooler 31 is fixedly connected to the cylinder 32, and a return pipe 33 is fixedly connected to the position between the input end of the cylinder 32 and the cooler 31;

[0040] The saving mechanism 5 is arranged on the top of the slide 4. The slide 4 drives the saving mechanism 5 to slide on the surface of the slide rail 2. The inner side of the saving mechanism 5 is in close contact with the surface of the bearing component 34. The saving mechanism 5 is externally connected to a fan to guide the airflow to the position between the bearing component 34 and the sealing component 36.

[0041] During use, when the plunger rod 35 slides upward on the inner side of the cylinder body 32, a gap exists between the sealing assembly 36 and the bearing assembly 34. The fish fillets to be dried are placed on the surface of the bearing assembly 34, and the fish fillets are arranged in a spiral. Then, the plunger rod 35 slides downward on the inner side of the cylinder body 32, and the bearing assembly 34 and the sealing assembly 36 are in close contact. The saving mechanism 5 approaches the bearing assembly 34 under the drive of the slide 4, and the saving mechanism 5 conveys the airflow to the position between the bearing assembly 34 and the sealing assembly 36. The sealing assembly 36 heats the airflow, and the cooler 31 cools the hydraulic oil inside the cylinder body 32, thereby solving the problem of large-scale destruction of amino acids in the fish fillets caused by high-temperature drying.

[0042] Second embodiment: Figure 3 、 Figure 4 、 Figure 5 As shown, the bearing assembly 34 includes an extension rod 341, one end of the extension rod 341 is fixedly connected to the surface of the cylinder body 32, the end of the extension rod 341 away from the cylinder body 32 is fixedly connected to the first spiral wall 342, the top of the first spiral wall 342 is fixedly connected to the rubber strip 343, the inner side surface of the first spiral wall 342 is fixedly connected to the storage table 344, the surface of the storage table 344 is provided with a hole, and the surface of the storage table 344 is used to place fish fillets, and the sealing assembly 36 includes a fixing rod 361, the middle position of the surface of the fixing rod 361 is fixedly connected to the top of the plunger rod 35, the surface of the fixing rod 361 is fixedly connected to the second spiral wall 362, the inner side surface of the second spiral wall 362 is fixedly connected to the baffle 363, the surface of the baffle 363 is provided with a hole, and the surface of the baffle 363 is rotatably connected to the heating rod 364.

[0043] When in use, the extension rod 341 separates the cylinder body 32 from the second spiral wall 362, effectively preventing the hydraulic oil temperature from rising and causing the hydraulic oil to be unable to apply downward pressure to the plunger rod 35. Compared with directly applying a large amount of high-temperature steam to the fish fillets for drying, the device uses the first spiral wall 342 and the second spiral wall 362 to form a spiral space. The air flow flows in the spiral sealed space, thereby accelerating the speed at which the gas carries moisture. The heating rod 364 is inside the spiral space. When the air flow passes through the heating rod 364, it is heated. The continuous flow of gas can effectively avoid excessive temperature. At the same time, the heating rod 364 can promote the drying process of the fish fillets, achieving the effect of low-temperature drying of the fish fillets. At the same time, the storage table 344 effectively improves space utilization.

[0044] The third embodiment: Figure 3 、 Figure 6 As shown, a bearing assembly 34 is fixedly connected to the surface of the cylinder 32, and a sealing assembly 36 is fixedly connected to the upper position of the surface of the plunger rod 35. A fish fillet is placed on the surface of the bearing assembly 34, and the sealing assembly 36 moves downward to closely fit the surface of the bearing assembly 34. Airflow flows between the bearing assembly 34 and the sealing assembly 36, and the airflow quickly removes moisture from the surface of the fish fillet, thereby replacing high-temperature drying.

[0045] A cooler 31 is fixedly connected to the middle position of the inner side surface of the slide rail 2, the output end of the cooler 31 is fixedly connected to the cylinder body 32, and the position between the input end of the cylinder body 32 and the cooler 31 is fixedly connected to the return pipe 33. The saving mechanism 5 includes a support platform 51, and the top of the support platform 51 is fixedly connected to an extrusion assembly 52. ​​There are two extrusion assemblies 52. The top of one of the extrusion assemblies 52 is rotatably connected to a top cover 53, and the surface of the top cover 53 is fixedly connected to a heating body 54. The surface of the other extrusion assembly 52 is fixedly connected to a fixed wall 55. There are two fixed walls 55, and the inner side surface of the fixed wall 55 is slidably connected to a ventilation assembly 56.

[0046] During use, fish fillets are placed on the surface of the bearing component 34, and the pressure of the hydraulic oil forms a relatively sealed space between the sealing component 36 and the bearing component 34. The hydraulic oil in the return pipe 33 also passes through the cooler 31. The cooler 31 cools the hydraulic oil, thereby increasing the pressing force of the plunger rod 35. The support platform 51 is driven to move in opposite directions, and the inner side of the extrusion component 52 applies pressure to the surface of the bearing component 34, so that the sealing effect between the bearing component 34 and the sealing component 36 is better. The ventilation component 56 slides close to the bottom end of the bearing component 34, and the external fan of the ventilation component 56 transports unheated airflow to replace high-temperature steam to dry the fish fillets, thereby solving the problem of energy waste caused by high-temperature steam drying the fish fillets for a long time.

[0047] Fourth embodiment: Figure 6 、 Figure 7 、 Figure 8 As shown, the extrusion assembly 52 includes a sliding plate 521, the bottom of the sliding plate 521 is slidably connected to the top of the slide rail 2, the top of the sliding plate 521 is fixedly connected to a semicircular tank 522, the inner side of the semicircular tank 522 is fixedly connected to an airbag wall 523, the ear of the airbag wall 523 is filled with gas, and the surface of the airbag wall 523 is fixedly connected to a heat insulation sheet 524, the ventilation assembly 56 includes a fixed plate 561, the surface of the fixed plate 561 is fixedly connected to the inner side of the fixed wall 55, the inner side of the fixed plate 561 is slidably connected to a ventilation pipe 562, the inner side of the ventilation pipe 562 is fixedly connected to the output end of the fan, the side position of the surface of the ventilation pipe 562 is fixedly connected to the electric cylinder 563, the output end of the electric cylinder 563 is fixedly connected to the surface of the fixed plate 561, and the surface of the ventilation pipe 562 is fixedly connected to a thermal expansion gel 564.

[0048] When in use, the two sliding plates 521 approach each other to drive the two semicircular tanks 522 to fit together, and the top cover 53 rotates so that the semicircular tank 522 is in a relatively sealed environment. The airbag wall 523 is set between the semicircular tank 522 and the heat insulation plate 524. Gas is passed into the interior of the airbag wall 523 so that the heat insulation plates 524 are squeezed against each other, and the surface of the heat insulation plate 524 is in close contact with the surface of the support component 34. At the same time, the output end of the electric cylinder 563 contracts, so that the ventilation pipe 562 is pushed to the inner side of the semicircular tank 522, and the ventilation pipe 562 is connected to the support component 34. The ventilation pipe 562 is connected to the external fan to transport the airflow to the interior of the support component 34. The heat insulation plate 524, the heating body 54 and the sliding plate 521 effectively prevent heat loss.

[0049] Fifth embodiment: Figure 5 、 Figure 8 As shown, the middle position of the surface of the fixed rod 361 is fixedly connected to the top end of the plunger rod 35, the surface of the fixed rod 361 is fixedly connected to the second spiral wall 362, the inner side of the second spiral wall 362 is fixedly connected to the baffle 363, the surface of the baffle 363 is provided with a hole, the surface of the baffle 363 is rotatably connected to the heating rod 364, the surface of the fixed plate 561 is fixedly connected to the inner side of the fixed wall 55, the inner side of the fixed plate 561 is slidably connected to the ventilation pipe 562, the inner side of the ventilation pipe 562 is fixedly connected to the output end of the fan, the side position of the surface of the ventilation pipe 562 is fixedly connected to the electric cylinder 563, the output end of the electric cylinder 563 is fixedly connected to the surface of the fixed plate 561, and the surface of the ventilation pipe 562 is fixedly connected to the thermal expansion gel 564.

[0050] During use, when the electric cylinder 563 is away from the fixed plate 561, the ventilation pipe 562 will not interfere with the second spiral wall 362. The bottom of the second spiral wall 362 and the first spiral wall 342 form a sealed space. The electric cylinder 563 drives the ventilation pipe 562 to approach the second spiral wall 362, and the thermal expansion gel 564 extends to the inner side of the second spiral wall 362. The airflow enters the second spiral wall 362 through the ventilation pipe 562, and the airflow hits the heating rod 364, causing the heating rod 364 to rotate. The rotation of the heating rod 364 effectively prevents the local gas temperature from being too high. The temperature increase causes the thermal expansion gel 564 to expand, thereby making the airflow direction inside the first spiral wall 342 more certain, avoiding gas leakage and poor fish fillet drying effect.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

Claims

1. A spiral belt type dried fish low temperature drying device, characterized in that: include A base (1), wherein the top of the base (1) is fixedly connected to a slide rail (2), and the inner side surface of the slide rail (2) is slidably connected to a slide platform (4); The low-temperature mechanism (3) is arranged at the middle position of the inner side surface of the slide rail (2) and is used for placing the fish fillets. The airflow flows rapidly inside the low-temperature mechanism (3) to remove the water vapor on the surface of the fish fillets, and the fish fillets are dried by using the low temperature; it comprises a cylinder (32), the inner side surface of the cylinder (32) is slidably connected to the plunger rod (35), the surface of the cylinder (32) is fixedly connected to the bearing component (34), the upper position of the surface of the plunger rod (35) is fixedly connected to the sealing component (36), the surface of the bearing component (34) is placed with the fish fillets, the sealing component (36) moves downward and is tightly fitted with the surface of the bearing component (34), and the position between the bearing component (34) and the sealing component (36) is circulated with airflow, and the airflow quickly removes the water vapor on the surface of the fish fillets, thereby replacing high-temperature drying; The saving mechanism (5) is arranged on the top of the slide (4), and the slide (4) drives the saving mechanism (5) to slide on the surface of the slide rail (2). The inner side of the saving mechanism (5) is in close contact with the surface of the bearing assembly (34). The saving mechanism (5) is externally connected to a fan, thereby guiding the airflow to the position between the bearing assembly (34) and the sealing assembly (36); the bearing assembly (34) includes an extension rod (341), one end of the extension rod (341) is connected to the cylinder (32) The surface of the extension rod (341) is fixedly connected, and the end of the extension rod (341) away from the cylinder body (32) is fixedly connected to the first spiral wall (342); the sealing assembly (36) includes a fixing rod (361), the surface of the fixing rod (361) is fixedly connected to the second spiral wall (362), the inner side surface of the second spiral wall (362) is fixedly connected to a baffle (363), the surface of the baffle (363) is provided with a hole, and the surface of the baffle (363) is rotatably connected to a heating rod (364); A cooler (31) is fixedly connected to the middle position of the inner side surface of the slide rail (2), the output end of the cooler (31) is fixedly connected to the cylinder (32), and a return pipe (33) is fixedly connected to the position between the input end of the cylinder (32) and the cooler (31).

2. The spiral belt type dried fish low temperature drying device according to claim 1, characterized in that: The top of the first spiral wall (342) is fixedly connected to a rubber strip (343), and the inner side of the first spiral wall (342) is fixedly connected to a storage platform (344). The surface of the storage platform (344) is provided with holes, and the surface of the storage platform (344) is used to place fish fillets.

3. The spiral belt type dried fish low temperature drying device according to claim 2, characterized in that: The middle portion of the surface of the fixing rod (361) is fixedly connected to the top end of the plunger rod (35).

4. The spiral belt type dried fish low temperature drying device according to claim 3, characterized in that: The saving mechanism (5) comprises a support platform (51), the top of which is fixedly connected to an extrusion assembly (52), and there are two extrusion assemblies (52), the top of one of which is rotatably connected to a top cover (53).

5. The spiral belt type dried fish low temperature drying device according to claim 4, characterized in that: The surface of the top cover (53) is fixedly connected to a heating body (54), and the surface of another extrusion component (52) is fixedly connected to a fixed wall (55), there are two fixed walls (55), and the inner side surface of the fixed wall (55) is slidably connected to a ventilation component (56).

6. The spiral belt type dried fish low temperature drying device according to claim 5, characterized in that: The ventilation assembly (56) includes a fixed plate (561), the surface of the fixed plate (561) is fixedly connected to the inner side surface of the fixed wall (55), the inner side surface of the fixed plate (561) is slidably connected to a ventilation pipe (562), and the inner side surface of the ventilation pipe (562) is fixedly connected to the output end of the fan.

7. The spiral belt type dried fish low temperature drying device according to claim 6, characterized in that: An electric cylinder (563) is fixedly connected to the side of the surface of the ventilation pipe (562), an output end of the electric cylinder (563) is fixedly connected to the surface of the fixing plate (561), and a thermal expansion gel (564) is fixedly connected to the surface of the ventilation pipe (562).

Images