Cured meat air-drying production system equipment and preparation method thereof

Abstract

The invention belongs to the technical field of food processing, and particularly relates to cured meat air-drying making system equipment and a preparation method thereof.The cured meat air-drying making system equipment comprises an air-drying fermentation chamber used for air-drying materials; the air supply system is used for supplying air into the air-drying fermentation chamber; the air return system is used for recycling air sent out by the air supply system to the air drying fermentation chamber; the circulating air system is used for receiving air returned by the air return system and supplying air to the air supply system; the flow guide plate assemblies are arranged on the two sides of the lower end of the air-drying fermentation chamber. The structure that the variable-cross-section air supply pipe and the vertically-arranged air outlet are combined with the flow guide plate is adopted, and automatic control of the electric control air valve is matched, so that effective air flow can be formed in the air drying chamber, and air circulation dead angles are avoided. High-humidity and low-temperature air is cooled to be below the air dew point through an evaporator to separate out moisture, low-temperature and low-humidity air is formed, then the low-temperature and low-humidity air is heated through a condenser to form dry air, and then the dry air is mixed with saturated air to generate low-temperature and low-humidity air for repeated circulation.

Description

Technical Field

[0001] The present invention belongs to the technical field of food processing, and particularly relates to a system and equipment for making cured meats by air-drying and its preparation method. Background Art

[0002] As an important part of the production process of traditional meat products, the air-drying air circulation system mainly controls environmental factors such as temperature, humidity, and wind speed to achieve the purpose of constant temperature, constant humidity, and uniform air-drying of meat products. This system generally consists of air supply openings, air return openings, filters, fans, heat exchangers, etc., and through a precise control mechanism, high-quality air-drying of meat products is achieved. With the development of technology, it is also constantly advancing. From the initial simple control system to the current intelligent control system, the technology of the air-drying air circulation system has undergone a huge transformation. At the same time, modern meat product processing technology also pays more and more attention to the development in aspects such as automation, intelligence, and environmental friendliness. The development of these technologies will help improve the quality and taste of meat products, and also meet the expectations and requirements of today's society for the food industry.

[0003] Although the technology of the traditional air-drying air circulation system for meat products has certain effects, there are still some defects. The following are some of the main defects:

[0004] Insufficient precision control: The traditional air-drying air circulation system mainly relies on experienced production masters for manual control, and the control precision of parameters such as temperature, humidity, and wind speed is often not accurate enough, which will affect the air-drying effect and quality of meat products.

[0005] High energy consumption: The traditional air-drying air circulation system requires a large amount of energy to maintain its operation. Uneven air flow and dead corners in the air circulation will cause uneven air-drying of products, affecting the yield rate of products. Especially in the processing of meat products that require long-term air-drying, the energy consumption is even greater.

[0006] Low production efficiency: The traditional air-drying air circulation system for meat products mainly relies on manual operation, with low production efficiency and unable to meet the production needs of large-scale and high efficiency.

[0007] Unstable quality: Since the technology of the traditional air-drying air circulation system for meat products mainly relies on experienced production masters, there may be differences in the air-drying effect and quality of different batches or even the same batch of meat products, and the quality is not stable enough. Summary of the Invention

[0008] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a system and equipment for making cured meats by air-drying and its preparation method, which can solve at least one problem in the background art.

[0009] The purpose of the present invention can be achieved by the following technical solutions:

[0010] A preserved-meat air-drying production system equipment, comprising:

[0011] An air-drying and fermentation chamber for placing air-dried materials;

[0012] An air supply system for supplying air into the air-drying and fermentation chamber to air-dry the materials. The air supply system includes a circulation fan. The air outlet of the circulation fan is communicated with a tee pipe. Both ends of the tee pipe are fixedly connected with electric air valves. The air outlets of the electric air valves are communicated with air supply pipes. The two air supply pipes are arranged side by side on both sides of the upper end inside the air-drying and fermentation chamber. The cross section of the air supply pipe gradually becomes smaller along the direction of air flow. A plurality of vertically downward air outlets are equidistantly distributed at the lower end of the air supply pipe;

[0013] A return air system for recovering the air sent into the air-drying and fermentation chamber by the air supply system. The return air system includes a horizontal return air pipe arranged between the two air supply pipes. A plurality of return air openings are evenly distributed at the lower end of the horizontal return air pipe. One end of the horizontal return air pipe is communicated with a vertical return air pipe;

[0014] A circulating air system for receiving the air returned by the return air system and supplying air to the air supply system. The circulating air system includes a box body. The circulation fan is arranged inside the box body. The air inlet on the side surface of the box body is communicated with the air outlet of the vertical return air pipe. An evaporator and a condenser are arranged at the air inlet inside the box body. A compressor is arranged outside the air-drying and fermentation chamber. The compressor is communicated with the evaporator and the condenser through pipelines;

[0015] A deflector assembly arranged on both sides of the lower end of the air-drying and fermentation chamber.

[0016] Further, the circulation fan is connected to the tee pipe through a hose.

[0017] Further, the deflector assembly includes a first deflector, a second deflector and a third deflector. The first deflector is rotatably connected to the second deflector, and the second deflector is rotatably connected to the third deflector;

[0018] Vertical slide rails are arranged at both ends of the first deflector. A vertical first chute and a vertical second chute are formed in the vertical slide rails. A first slider is slidably connected in the vertical first chute. A first connecting shaft is rotatably connected to the first slider. The first connecting shaft is fixedly connected to the end of the upper end of the first deflector. A first threaded column is fixedly connected to the first slider. The first threaded column passes through the vertical second chute and is threadedly connected with a first adjusting nut;

[0019] Both ends of the third deflector are provided with transverse sliding rails. One end of the transverse sliding rail is fixedly connected to the lower end of the vertical sliding rail. The transverse sliding rail is provided with a first transverse chute and a second transverse chute. A second slider is slidably connected in the first transverse chute. A second connecting shaft is rotatably connected to the second slider. The second connecting shaft is fixedly connected to the end of the lower end of the third deflector. A second threaded column is fixedly connected to the second slider. The second threaded column passes through the second transverse chute and is threadedly connected to a second adjusting nut.

[0020] Rotating heads are rotatably connected to the upper and lower ends of both ends of the second deflector. A third threaded column is slidably connected to the rotating head. A third adjusting nut is threadedly connected to the third threaded column at the upper end of the rotating head. A spring is sleeved on the third threaded column at the lower end of the rotating head. The lower ends of the two third threaded columns at the same end of the second deflector are rotatably connected to the same connecting pin. The connecting pin is fixedly connected to the inner side surface at the connection of the vertical sliding rail and the transverse sliding rail.

[0021] Furthermore, a water receiving tray is provided at the bottom of the box body, and a drain pipe is communicated with the lower end of the water receiving tray.

[0022] Furthermore, a humidifier is provided inside the box body.

[0023] Furthermore, an auxiliary heater is provided inside the box body.

[0024] Furthermore, a radiator is provided outside the air-drying and fermenting chamber, and the radiator is communicated with the inside of the box body.

[0025] Furthermore, an installation bin is provided at the lower end of the air-drying and fermenting chamber where the compressor and the radiator are arranged.

[0026] Furthermore, the installation bin is provided with a heat dissipation port.

[0027] The method for preparing dried cured meat includes the following steps:

[0028] First, place the material to be air-dried in the air-drying and fermenting chamber.

[0029] Secondly, start the circulation fan to send the low-temperature and low-humidity air in the box body into the three-way pipe and then be split into the two side air supply pipes, and then flow downward through the air outlet into the air-drying and fermenting chamber. After being guided by the deflector assembly, the air flow direction is changed to generate disturbance in the air-drying and fermenting chamber. The flowing air takes away the moisture on the surface of the material to form low-temperature and high-humidity air. The low-temperature and high-humidity air rises and enters the horizontal return air pipe and the vertical return air pipe from the return air port and then flows into the box body. The low-temperature and high-humidity air passes through the surface of the evaporator to reduce its temperature below the air dew point to precipitate moisture, forming low-temperature and low-humidity air, and then is heated by the condenser to form dry air, and then is mixed with saturated air to generate low-temperature and low-humidity air for repeated circulation.

[0030] Finally, the material is air-dried at a constant temperature.

[0031] The explanations of nouns, conjunctions or adjectives involved in the above technical solutions are as follows:

[0032] Fixed connection means that after the parts or components are fixed, there is no relative movement between them. It is divided into two types: detachable connection and non-detachable connection.

[0033] (1) Detachable connection uses screws, splines, wedge pins, etc. to fix the components together. This connection method can be disassembled during maintenance and will not damage the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedge pins), and they must be fastened properly.

[0034] (2) Non-detachable connection mainly refers to welding, riveting, and mortise fitting, etc. Since it needs to be forged, sawed, or oxy-cut to be disassembled during maintenance or replacement, the spare parts generally cannot be used twice. At the same time, during connection, attention should be paid to process quality, technical inspection, and remedial measures (such as correction, polishing, etc.).

[0035] Thread connection refers to a detachable connection that connects the connected parts into one body with threaded parts (or the threaded parts of the connected parts).

[0036] Sliding connection means that two objects are in contact but not fixed, and they can slide relative to each other.

[0037] Rotational connection means that the connection between parts allows the parts to rotate relative to each other.

[0038] Advantages of the present invention:

[0039] 1. Simulate the natural air-drying environment outdoors in winter in the low-temperature circulating air-drying chamber. The low-temperature and low-humidity air continuously absorbs the moisture on the surface of the food during forced circulation. The air that reaches the saturated state passes through the evaporator. Due to the evaporation of the refrigerant in the evaporator, the surface temperature of the evaporator drops below the air dew point temperature. The air is cooled and the moisture is precipitated after passing through the evaporator. The precipitated moisture is discharged from the library body by the water collector. The low-temperature and low-humidity air then enters the condenser. Since the high-temperature gaseous refrigerant from the compressor flows in the condenser, the air is heated to form dry air, and then mixed with the saturated state air to generate low-temperature and low-humidity air for repeated circulation.

[0040] 2. Adopt the structure of variable cross-section air supply duct combined with vertically arranged air outlets and guide vanes. Use the flow field simulation software to simulate and analyze the indoor flow field, obtain the optimal structural parameters, and cooperate with the automatic control of the electric control air valve to form effective air flow in the air-drying chamber, avoid the generation of wind circulation dead corners, effectively reduce the number of fans and the total installed power, and reduce energy consumption. Description of the Drawings

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 is the overall structural schematic diagram of the embodiment of the present invention;

[0043] Figure 2 is the structural schematic diagram of the air-drying fermentation chamber of the embodiment of the present invention;

[0044] Figure 3 is the internal structural schematic diagram of the air-drying fermentation chamber of the embodiment of the present invention;

[0045] Figure 4 is the structural schematic diagram of the air supply system of the embodiment of the present invention;

[0046] Figure 5 is the structural schematic diagram of the return air system of the embodiment of the present invention;

[0047] Figure 6 is the partial structural schematic diagram of the circulating air system of the embodiment of the present invention;

[0048] Figure 7 is the internal structural schematic diagram of the box body of the embodiment of the present invention;

[0049] Figure 8 is the structural schematic diagram of the deflector assembly of the embodiment of the present invention;

[0050] Figure 9 is the Figure 8 structural schematic diagram of the structure at position A in the embodiment of the present invention. Specific embodiments

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0052] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0053] Example 1

[0054] As Figures 1-9 shown, the cured meat air-drying production system equipment includes:

[0055] An air-drying fermentation chamber 1 for placing air-drying materials;

[0056] An air supply system 2 for supplying air into the air-drying fermentation chamber 1 to air-dry the materials. The air supply system 2 includes a circulation fan 21. The air outlet of the circulation fan 21 is connected to a tee pipe 22. Both ends of the tee pipe 22 are fixedly connected with electric air valves 23. The air outlets of the electric air valves 23 are connected to air supply pipes 24. The two air supply pipes are arranged side by side on both sides of the upper end inside the air-drying fermentation chamber 1. The cross-section of the air supply pipe 24 gradually becomes smaller along the direction of air flow. A number of vertically downward air outlets 25 are equally spaced at the lower end of the air supply pipe 24;

[0057] A return air system 3 for recovering the air sent into the air-drying fermentation chamber 1 by the air supply system 2. The return air system 3 includes a horizontal return air pipe 31 arranged between the two air supply pipes 24. A number of return air openings 32 are evenly distributed at the lower end of the horizontal return air pipe 31. One end of the horizontal return air pipe 31 is connected to a vertical return air pipe 33;

[0058] A circulating air system 4 for receiving the air returned by the return air system 3 and supplying air to the air supply system 2. The circulating air system 4 includes a box body 41. The circulation fan 21 is arranged inside the box body 41. The air inlet on the side of the box body 41 is connected to the air outlet of the vertical return air pipe 33. An evaporator 42 and a condenser 43 are arranged inside the box body 41 at the air inlet. A compressor 44 is arranged outside the air-drying fermentation chamber 1. The compressor 44 is connected to the evaporator 42 and the condenser 43 through pipes;

[0059] A deflector assembly 5 is arranged on both sides of the lower end of the air-drying fermentation chamber 1.

[0060] In use, place the material to be air-dried in the air-drying fermentation chamber 1. Start the circulation fan 21. The air in the box body 41 with low temperature and low humidity is shunted into the two side air supply pipes 24 through the three-way pipe 22, and then flows downward through the air outlet 25 into the air-drying fermentation chamber 1. After being guided by the guide plate assembly 5, the air flow direction is changed, causing turbulence in the air-drying fermentation chamber 1. The flowing air takes away the moisture on the surface of the material and forms low-temperature and high-humidity air. The low-temperature and high-humidity air rises and enters the horizontal return air pipe 31 and the vertical return air pipe 33 through the return air port 32 and then flows into the box body 41. Due to the evaporation of the refrigerant in the evaporator 42, the surface temperature of the evaporator 42 drops below the air dew point temperature. The low-temperature and high-humidity air is cooled and moisture is precipitated after passing through the evaporator 42, forming low-temperature and low-humidity air. The low-temperature and low-humidity air then enters the condenser 43. Since the high-temperature gaseous refrigerant from the compressor 44 flows in the condenser 43, the air is heated to form dry air, and then mixed with saturated air to generate low-temperature and low-humidity air for repeated circulation.

[0061] It should be noted that the air in the two air supply pipes 24 comes from the same circulation fan 21. The air volume of the two side air supply pipes 24 is adjusted by adjusting the opening degree of the electric air valve 23. The opening degree of the electric air valve 23 can be continuously adjusted within the full-open to full-closed range, so as to realize the adjustment of different air volumes at the air outlets 25 of the two side air supply pipes 24 and form a turbulent flow in the air-drying fermentation chamber 1. The electric air valves 23 can be opened simultaneously, and at this time the air supply volumes on both sides are the same. The electric air valve 23 can also be fully opened on one side and fully closed on the other side. Then the fully opened one is gradually closed, and the fully closed one is gradually opened to realize alternating air supply on the left and right.

[0062] Among them, the cross-section of the air supply pipe 24 adopts a gradually changing structure to ensure that the air volumes at the air outlets in the near and far sections are uniform.

[0063] In an embodiment of the present invention, the circulation fan 21 and the three-way pipe 22 are connected by a hose 26 to ensure the connection between the circulation fan 21 and the three-way pipe 22 when the three-way pipe 22 or the box body 41 is displaced.

[0064] In an embodiment of the present invention, the guide plate assembly 5 includes a first guide plate 51, a second guide plate 52 and a third guide plate 53. The first guide plate 51 is rotatably connected to the second guide plate 52, and the second guide plate 52 is rotatably connected to the third guide plate 53;

[0065] Vertical slide rails 54 are provided at both ends of the first deflector 51. Vertical first chutes 541 and vertical second chutes 542 are formed in the vertical slide rails 54. A first slider 55 is slidably connected in the vertical first chute 541. A first connecting shaft 551 is rotatably connected to the first slider 55. The first connecting shaft 551 is fixedly connected to the end of the upper end of the first deflector 51. A first threaded column 552 is fixedly connected to the first slider 55. The first threaded column 552 passes through the vertical second chute 542 and is threadedly connected to a first adjusting nut 553;

[0066] Horizontal slide rails 56 are provided at both ends of the third deflector 53. One end of the horizontal slide rail 56 is fixedly connected to the lower end of the vertical slide rail 54. Horizontal first chutes 561 and horizontal second chutes 562 are formed in the horizontal slide rails 56. A second slider 57 is slidably connected in the horizontal first chute 561. A second connecting shaft 571 is rotatably connected to the second slider 57. The second connecting shaft 571 is fixedly connected to the end of the lower end of the third deflector 53. A second threaded column 572 is fixedly connected to the second slider 57. The second threaded column 572 passes through the horizontal second chute 562 and is threadedly connected to a second adjusting nut 573;

[0067] Rotating heads 521 are rotatably connected to the upper and lower ends of both ends of the second deflector 52. A third threaded column 58 is slidably connected to the rotating head 251. A third adjusting nut 581 is threadedly connected to the third threaded column 58 at the upper end of the rotating head 521. A spring 582 is sleeved on the third threaded column 58 at the lower end of the rotating head 521. The lower ends of the two third threaded columns 58 at the same end of the second deflector 52 are rotatably connected to the same connecting pin 583. The connecting pin 583 is fixedly connected to the inner side surface at the connection of the vertical slide rail 54 and the horizontal slide rail 56.

[0068] In this application, by adjusting the relative position relationship of the first deflector 51, the second deflector 52, and the third deflector 53, different deflector directions can be adjusted and changed, thereby changing the disturbances in different wind directions.

[0069] In one embodiment of the present invention, a water receiving tray 45 is provided at the bottom of the box body 41. A drain pipe 451 is communicated with the lower end of the water receiving tray 45. The water condensed by the evaporator 42 is collected and discharged.

[0070] In one embodiment of the present invention, a humidifier 46 is provided in the box body 41. When the air in the box body 41 is relatively dry, the humidifier 46 operates to humidify the air in the box body 41 so that the air is within a set humidity range.

[0071] In one embodiment of the present invention, an auxiliary heater 47 is provided in the box body 41. When the air in the box body 41 is relatively humid or the temperature is relatively low, the auxiliary heater 47 operates to raise the temperature of the air in the box body 41 so that the air is within a set humidity and temperature range.

[0072] In an embodiment of the present invention, a radiator 48 is provided outside the air-drying and fermenting chamber 1, and the radiator 48 communicates with the inside of the box body 41. When the temperature inside the box body 41 is higher than the set temperature, the radiator 48 operates to discharge the excess heat inside the box body 41, and control the temperature inside the air-drying and fermenting chamber 1 within the set temperature range, thereby realizing constant-temperature air-drying.

[0073] In an embodiment of the present invention, an installation bin 11 is provided at the lower end of the air-drying and fermenting chamber 1 within the box body 41, and the compressor 44 and the radiator 48 are arranged inside the installation bin 11.

[0074] In an embodiment of the present invention, the installation bin 11 is provided with a heat dissipation port 12.

[0075] A control module is arranged inside the air-drying and fermenting chamber 1 in this application, and the control module is used to control the operation of the circulation fan 21, the electric air valve 23, the evaporator 42, the condenser 43, the compressor 44, the humidifier 46, the auxiliary heater 47, and the radiator 48.

[0076] Embodiment 2

[0077] A method for preparing dried cured meat includes the following steps:

[0078] First, place the material to be air-dried in the air-drying and fermenting chamber 1;

[0079] Secondly, start the circulation fan 21 to send the low-temperature and low-humidity air inside the box body 41 into the tee pipe 22 and then be split into the air supply pipes 24 on both sides, and then flow downward through the air outlet 25 into the air-drying and fermenting chamber 1. After being guided by the guide plate assembly 5, the air flow direction is changed to generate turbulence inside the air-drying and fermenting chamber 1. The flowing air takes away the moisture on the surface of the material to form low-temperature and high-humidity air. The low-temperature and high-humidity air rises and enters the horizontal return air pipe 31 and the vertical return air pipe 33 from the return air port 32 and then flows into the box body 41. The low-temperature and high-humidity air passes through the surface of the evaporator 42 to be cooled below the air dew point to precipitate moisture, forming low-temperature and low-humidity air, and then is heated by the condenser 43 to form dry air, and then is mixed with saturated air to generate low-temperature and low-humidity air for repeated circulation.

[0080] Finally, the material is air-dried at a constant temperature.

[0081] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A preserved-meat air-drying production system and equipment, characterized in that, Comprising: An air-drying fermentation chamber (1) for placing air-dried materials; An air supply system (2) for supplying air into the air-drying fermentation chamber (1) to air-dry the materials. The air supply system (2) includes a circulation fan (21). The air outlet of the circulation fan (21) is communicated with a tee pipe (22). Electric air valves (23) are fixedly connected to both ends of the tee pipe (22). The air outlets of the electric air valves (23) are communicated with air supply pipes (24). The two air supply pipes are arranged side by side on both sides of the upper end inside the air-drying fermentation chamber (1). The cross-section of the air supply pipe (24) gradually becomes smaller along the direction of air flow. A number of vertically downward air outlets (25) are equally spaced and distributed at the lower end of the air supply pipe (24); A return air system (3) for recovering the air sent into the air-drying fermentation chamber (1) by the air supply system (2). The return air system (3) includes a horizontal return air pipe (31) arranged between the two air supply pipes (24). A number of return air openings (32) are evenly distributed at the lower end of the horizontal return air pipe (31). One end of the horizontal return air pipe (31) is communicated with a vertical return air pipe (33); A circulating air system (4) for receiving the air returned by the return air system (3) and supplying air to the air supply system (2). The circulating air system (4) includes a box body (41). The circulation fan (21) is arranged inside the box body (41). The air inlet on the side of the box body (41) is communicated with the air outlet of the vertical return air pipe (33). An evaporator (42) and a condenser (43) are arranged at the air inlet inside the box body (41). A compressor (44) is arranged outside the air-drying fermentation chamber (1). The compressor (44) is communicated with the evaporator (42) and the condenser (43) through pipes; A deflector assembly (5) arranged on both sides at the lower end of the air-drying fermentation chamber (1).

2. The preserved-meat air-drying production system equipment according to claim 1, characterized in that, The circulation fan (21) is connected to the tee pipe (22) through a hose (26).

3. The preserved-meat air-drying production system equipment according to claim 1, characterized in that, The deflector assembly (5) includes a first deflector (51), a second deflector (52), and a third deflector (53). The first deflector (51) is rotatably connected to the second deflector (52), and the second deflector (52) is rotatably connected to the third deflector (53); Vertical slide rails (54) are arranged at both ends of the first deflector (51). A vertical first chute (541) and a vertical second chute (542) are formed on the vertical slide rails (54). A first slider (55) is slidably connected in the vertical first chute (541). A first connecting shaft (551) is rotatably connected to the first slider (55). The first connecting shaft (551) is fixedly connected to the end of the upper end of the first deflector (51). A first threaded column (552) is fixedly connected to the first slider (55). The first threaded column (552) passes through the vertical second chute (542) and is threadedly connected with a first adjusting nut (553); Both ends of the third deflector (53) are provided with transverse sliding rails (56). One end of the transverse sliding rail (56) is fixedly connected to the lower end of the vertical sliding rail (54). The transverse sliding rail (56) is provided with a transverse first chute (561) and a transverse second chute (562). A second slider (57) is slidably connected in the transverse first chute (561). A second connecting shaft (571) is rotatably connected to the second slider (57). The second connecting shaft (571) is fixedly connected to the end of the lower end of the third deflector (53). A second threaded column (572) is fixedly connected to the second slider (57). The second threaded column (572) passes through the transverse second chute (562) and is threadedly connected to a second adjusting nut (573). Rotating heads (521) are rotatably connected to the upper and lower ends of both ends of the second deflector (52). A third threaded column (58) is slidably connected to the rotating head (251). A third adjusting nut (581) is threadedly connected to the third threaded column (58) at the upper end of the rotating head (521). A spring (582) is sleeved on the third threaded column (58) at the lower end of the rotating head (521). The lower ends of the two third threaded columns (58) at the same end of the second deflector (52) are rotatably connected to the same connecting pin (583). The connecting pin (583) is fixedly connected to the inner side surface at the connection of the vertical sliding rail (54) and the transverse sliding rail (56).

4. The preserved-meat air-drying production system equipment according to claim 1, characterized in that, A water receiving tray (45) is provided at the bottom of the box body (41). A drain pipe (451) is communicated with the lower end of the water receiving tray (45).

5. The preserved-meat air-drying production system equipment according to claim 4, characterized in that, A humidifier (46) is provided inside the box body (41).

6. The preserved-meat air-drying production system equipment according to claim 5, characterized in that, An auxiliary heater (47) is provided inside the box body (41).

7. The preserved-meat air-drying production system equipment according to claim 6, wherein A radiator (48) is provided outside the air-drying fermentation chamber (1). The radiator (48) is communicated with the inside of the box body (41).

8. The preserved-meat air-drying production system equipment according to claim 7, wherein, An installation bin (11) is provided at the lower end of the air-drying fermentation chamber (1) where the box body (41) is located. A compressor (44) and a radiator (48) are provided in the installation bin (11).

9. The preserved-meat air-drying production system equipment according to claim 8, wherein, The installation bin (11) is provided with a heat dissipation port (12).

10. Method for preparing dried preserved meat, characterized in that, Including the following steps: First, place the material to be air-dried in the air-drying fermentation chamber (1). Secondly, start the circulation fan (21). The low-temperature and low-humidity air inside the box body (41) is sent into the tee pipe (22) and then split into the air supply pipes (24) on both sides. Then, it flows downward through the air outlet (25) and surges into the air-drying fermentation chamber (1). After being guided by the deflector assembly (5), the wind flow direction is changed, causing turbulence inside the air-drying fermentation chamber (1). The flowing wind takes away the moisture on the surface of the material to form low-temperature and high-humidity air. The low-temperature and high-humidity air rises and enters the horizontal return air pipe (31) and the vertical return air pipe (33) from the return air port (32) and then flows into the box body (41). The low-temperature and high-humidity air passes through the surface of the evaporator (42) to be cooled below the air dew point to precipitate moisture, forming low-temperature and low-humidity air. Then, it is heated by the condenser (43) to form dry air, and then mixed with saturated air to generate low-temperature and low-humidity air for repeated circulation. Finally, the material is air-dried at a constant temperature.

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