A layered temperature-controlled seed roasting machine

Abstract

This utility model discloses a layered temperature-controlled seed roasting machine. A multi-layered insulated chamber is equipped with a multi-layered turning chain plate device. A feeding conveyor is located on one side of the multi-layered insulated chamber for transporting fruits, vegetables, or seeds. One side of the multi-layered turning chain plate device protrudes from the multi-layered insulated chamber and connects to the top outlet side of the feeding conveyor. A layered temperature-controlled drying system is arranged inside and on top of the multi-layered insulated chamber. A waste heat recovery system is installed on the top of the multi-layered insulated chamber, and the layered temperature-controlled drying system and the waste heat recovery system are connected. This utility model, while ensuring uniform temperature within the drying zone, sets different roasting temperatures according to the gradual reduction of internal moisture in the roasted material, avoiding the phenomenon of hardening and scorching of the material surface at the same temperature. It can meet the needs of materials with different characteristics, has a wide range of applications, provides high drying quality, and enables automated production.

Description

Technical Field

[0001] This utility model relates to processing equipment for fruits and vegetables, and in particular to a layered temperature-controlled seed roasting machine. Background Technology

[0002] Areca nuts and other seeds are one of the four major southern Chinese medicinal herbs, and also a popular fruit. However, the areca nut food manufacturing industry remains labor-intensive, with most processes requiring manual labor. Labor shortages and rising labor costs have become the biggest bottleneck to the industry's development. This creates an urgent need for automated production of areca nut products.

[0003] Drying of fruits and seeds such as areca nuts is an important process in the processing of these products. While automated continuous production has been achieved, existing equipment has several drawbacks, including the following:

[0004] First, the dried areca nuts are uneven, with significant differences in moisture content, affecting subsequent processes and the quality of the final product. Second, existing equipment is bulky and requires a large area of ​​factory space. Third, the drying process is energy-intensive and costly, while manual sorting requires a large workforce, which is also costly. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the present invention provides a layered temperature-controlled seed roasting machine.

[0006] This invention provides a fruit and vegetable dryer / seed roaster that allows for layered temperature control during the drying process of fruits and vegetables based on the different internal moisture levels, thereby improving product quality.

[0007] The technical solution adopted in this utility model is:

[0008] This utility model includes a feeding conveyor, a multi-layer turning chain plate device, a layered temperature-controlled drying system, a waste heat recovery system, and a multi-layer insulated box. The multi-layer turning chain plate device is arranged inside the multi-layer insulated box. The feeding conveyor is arranged on one side of the multi-layer insulated box for transporting fruits, vegetables, or seeds. One side of the multi-layer turning chain plate device protrudes from the multi-layer insulated box and connects to the top outlet side of the feeding conveyor. The layered temperature-controlled drying system is arranged inside and on the top of the multi-layer insulated box. The waste heat recovery system is installed on the top of the multi-layer insulated box. The layered temperature-controlled drying system and the waste heat recovery system are connected.

[0009] The multi-layer insulated chamber is divided into multiple drying zones. The multi-layer turning chain plate device is divided into multiple layers with the same number of drying zones, which are used to transport fruits, vegetables or seeds between different drying zones.

[0010] The layered temperature-controlled drying system includes a layered temperature and humidity-controlled air mesh installed on the top of the multi-layered insulated chamber, which is connected to a waste heat recovery system.

[0011] The layered temperature and humidity control network includes a makeup air fan, makeup air ducts, and exhaust ducts. Multiple independent makeup air chambers and exhaust ducts are set on the top of the multi-layered insulated box. Makeup air ducts and exhaust ducts are also arranged on the top of the multi-layered insulated box. Each makeup air chamber and exhaust duct is connected to the drying area of ​​its corresponding layer. One end of each makeup air chamber is connected to the makeup air duct via a manual makeup air valve, and the other end of each exhaust duct is connected to the exhaust duct via a manual exhaust duct valve, an electric exhaust duct valve, and an exhaust duct. A makeup air fan for driving the makeup air is installed at the inlet end of the makeup air duct. The inlet of the makeup air duct and the outlet of the exhaust duct are both connected to the waste heat recovery system.

[0012] The waste heat recovery system has a built-in heat exchange structure. One pipeline of the heat exchange structure is connected to the inlet of the make-up air pipeline, and the other pipeline is connected to the outlet of the exhaust pipe. The waste heat recovery system includes a shell and a heat exchange structure arranged inside the shell. The heat exchange structure includes an exhaust fan, heat dissipation pipes, and partitions. Multiple vertically parallel partitions are installed in the middle of the shell. Heat dissipation pipes are installed inside the shell and pass through each partition. Make-up air inlets and outlets are opened on both sides of the shell. The two ends of the heat dissipation pipes are connected to the make-up air inlets and outlets, respectively. The top opening of the shell serves as the exhaust air inlet, and an exhaust fan is installed at the exhaust air inlet. The bottom side wall opening of the shell serves as the exhaust air outlet, and the bottom opening of the shell serves as the condensate inlet.

[0013] The multi-layer flipping chain plate device includes multiple flipping transmission chain mechanisms and a power transmission chain. The multiple flipping transmission chain mechanisms are arranged in parallel staggered positions from top to bottom, and two adjacent flipping transmission chain mechanisms are connected by a power transmission chain.

[0014] Each flap drive chain mechanism includes a set of chain drive components, a material flap, and a fixed support plate; each periodic link on the chain of each chain drive component is equipped with a material flap, the upstream end of the material flap along the chain drive direction is hinged to the chain shaft of the periodic link, and the downstream end along the chain drive direction is not connected and is suspended;

[0015] Each chain drive assembly has upper and lower chain layers with fixed support plates parallel to the chain. When the material flap moves with the chain of the chain drive assembly, it passes over the fixed support plate from the upper surface of the fixed support plate.

[0016] The chain drive assembly includes two chain assemblies that move synchronously, arranged horizontally at intervals between them, with a fixed support plate between them. The two periodic chain links of the two chain assemblies that move synchronously are connected by the same material flap. Each chain assembly mainly consists of a driving sprocket, a driven sprocket, and a chain connecting the driving sprocket and the driven sprocket. The driving sprocket is used to connect to a motor. The driving sprockets of two adjacent flap drive chain mechanisms are connected by a power transmission chain.

[0017] The material flap includes a round tube and a perforated plate. Two round tubes are arranged in parallel and are fixedly connected by the perforated plate. One of the round tubes is hinged to the chain shaft of the periodic chain link. Multiple holes are provided on the perforated plate.

[0018] In the same flip-plate drive chain mechanism, the two fixed support plates corresponding to the upper and lower chains are staggered along the chain drive direction. The fixed support plates corresponding to the upper and lower chains have the same length along the chain drive direction, but the fixed support plate corresponding to the lower chain is offset relative to the fixed support plate corresponding to the upper chain along the chain drive direction of the upper chain. Furthermore, in adjacent flip-plate drive chain mechanisms, the two fixed support plates corresponding to adjacent upper and lower chains are also staggered along the chain drive direction. The fixed support plate corresponding to the upper chain of the lower flip-plate drive chain mechanism is offset relative to the fixed support plate corresponding to the lower chain of the upper flip-plate drive chain mechanism along the chain drive direction of the lower chain.

[0019] It also includes a closed air valve, which is arranged above the inlet of the multi-layer turning chain plate device on the outlet side of the feeding conveyor;

[0020] It also includes a control cabinet, which is used to electrically connect and control the electrical components of the feeding conveyor, the multi-layer turning chain plate device, and the layered temperature-controlled drying system.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model has a three-layer layout, with each layer having its own temperature and humidity control, which achieves stability in the areca nut drying process and uniformity in product moisture content.

[0023] 2. This utility model adopts a new type of flip-plate conveyor chain, which greatly shortens the length of the conveyor chain and the volume of the equipment, and greatly reduces the factory area occupied.

[0024] 3. This utility model recovers heat from exhaust air for use in heating fresh air, which reduces energy consumption and lowers costs.

[0025] This invention ensures uniform temperature within the drying zone by setting different baking temperatures based on the gradual reduction of internal moisture in the material being baked, thus avoiding the phenomenon of the material's surface hardening and scorching under the same temperature.

[0026] This invention can meet the needs of materials with different characteristics, has a wide range of applications, provides high drying quality, and enables automated production. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0028] Figure 2 This is a side view of the overall structure of this utility model.

[0029] Figure 3 This is a three-dimensional view of the layered temperature-controlled drying system of this utility model.

[0030] Figure 4 This is a side view of the layered temperature-controlled drying system of this utility model.

[0031] Figure 5 This is a structural diagram of the waste heat recovery system of this utility model.

[0032] Figure 6 This is a structural diagram of the multi-layer flipping chain plate device of this utility model.

[0033] Figure 7 For this Figure 6 A magnified view of a portion of the image.

[0034] Figure 8 This is a top view of the multi-layer flipping chain plate device of this utility model.

[0035] Figure 9 This is a structural diagram of the material flap of this utility model.

[0036] In the diagram, the components are: 0 (material), 1 (feeding conveyor), 2 (multi-layer turning chain plate device), 3 (layered temperature and humidity control drying system), 31 (layered temperature and humidity control air net), 4 (waste heat recovery system), 5 (multi-layer insulated box), 6 (airlocker), 7 (control cabinet), 311 (makeup air fan), 312 (makeup air pipe), 313 (exhaust air pipe), 314 (makeup air manual valve), 315 (exhaust air manual valve), 316 (exhaust air electric valve); 41 (exhaust air fan), 42 (heat dissipation pipe), 43 (partition plate), 44 (makeup air inlet), 45 (exhaust air outlet), 46 (condensate water interface), 47 (exhaust air line), 48 (makeup air line); 21 (drive sprocket), 22 (driven sprocket), 23 (chain), 24 (material turning plate), 25 (power transmission chain), 26 (retaining ring), 27 (fixed support plate); 241 (round pipe), 242 (mesh plate), 243 (turning plate feeding state), 244 (turning plate unloading state). Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figure 1 and Figure 2 As shown, the equipment of this utility model includes a feeding conveyor 1, a multi-layer turning chain plate device 2, a layered temperature-controlled drying system 3, a waste heat recovery system 4, and a multi-layer insulated chamber 5. The multi-layer turning chain plate device 2 is arranged inside the multi-layer insulated chamber 5. The feeding conveyor 1 is arranged on one side of the multi-layer insulated chamber 5 for transporting fruits, vegetables, or seeds. One side of the multi-layer turning chain plate device 2 protrudes from the multi-layer insulated chamber 5 and connects to the top outlet side of the feeding conveyor 1 to receive the fruits, vegetables, or seeds transported by the feeding conveyor 1. The layered temperature-controlled drying system 3 is arranged inside and on the top of the multi-layer insulated chamber 5. The waste heat recovery system 4 is installed on the top of the multi-layer insulated chamber 5. The layered temperature-controlled drying system 3 and the waste heat recovery system 4 are connected, and the waste heat recovery system 4 converts the internal and external heat and air.

[0039] Material 0 is transported by the feeding conveyor 1 to the multi-layer turning chain plate device 2 for multi-layer zoned transport, and then undergoes different temperature-controlled drying treatments in each zone of the multi-layer insulated box 5 through the layered temperature-controlled drying system 3.

[0040] The multi-layer insulated compartment 5 is divided into multiple drying zones. The multi-layer turning chain plate device 2 is divided into multiple layers of the same number of drying zones, which are used to transport fruits, vegetables or seeds between different drying zones and keep them relatively isolated.

[0041] In practice, the middle part of the multi-layer insulated chamber 5 is set as a drying area, and the top of the multi-layer insulated chamber 5 is equipped with a temperature equalization and humidity control system, which includes a radiator, temperature and humidity sensors, etc.

[0042] The layered temperature control drying system 3 includes a layered temperature and humidity control air net 31 installed on the top of the multi-layered insulated chamber 5, and the layered temperature and humidity control air net 31 is connected to the waste heat recovery system 4.

[0043] like Figure 3 and Figure 4As shown, the layered temperature and humidity control air network 31 includes a makeup air fan 311, a makeup air duct 312, and a dehumidification duct 313. Multiple independent makeup air chambers and dehumidification chambers are set on the top of the multi-layer insulation box 5. The makeup air duct 312 and dehumidification duct 313 are also arranged on the top of the multi-layer insulation box 5, above the makeup air chambers and dehumidification chambers. Each makeup air chamber and dehumidification chamber is connected to the drying area of ​​its corresponding layer to perform temperature and humidity control drying treatment on the drying area. One end of each makeup air chamber is connected to the makeup air duct 312 via a makeup air manual valve 314, and the other end of each dehumidification chamber is connected to the dehumidification manual valve 315, the dehumidification electric valve 316, and the dehumidification duct 313. The inlet end of the makeup air duct 312 is equipped with a makeup air fan 311 for driving the makeup air. The inlet of the makeup air duct 312 and the outlet of the dehumidification duct 313 are both connected to the waste heat recovery system 4.

[0044] The waste heat recovery system 4 has a built-in heat exchange structure. One of the pipes of the heat exchange structure is connected to the inlet of the make-up air pipe 312, and the other is connected to the outlet of the exhaust pipe 313.

[0045] like Figure 5 As shown, the waste heat recovery system 4 includes a shell and a heat exchange structure arranged inside the shell. The heat exchange structure includes a dehumidifying fan 41, a heat dissipation pipe 42, and a partition 43. Multiple vertically parallel partitions 43 are installed in the middle of the shell. Heat dissipation pipes 42 are installed inside the shell and pass through each partition 43. Makeup air inlets 44 and makeup air outlets are opened on both sides of the shell. The two ends of the heat dissipation pipes 42 are connected to the makeup air inlets 44 and the makeup air outlets, respectively. The top opening of the shell serves as a dehumidifying air inlet, and a dehumidifying fan 41 is installed at the dehumidifying air inlet. The bottom side wall opening of the shell serves as a dehumidifying air outlet 45, and the bottom opening of the shell serves as a condensate inlet 46.

[0046] In practice, fins and baffles are wrapped around the surface of the heat exchange pipe to increase the heat exchange path. Moist air passes through the outside of the heat exchange pipe, and fresh air passes through the inside of the heat exchange pipe. The two airflows exchange heat through the heat exchange pipe, fins, baffles, etc.

[0047] The core of the heat exchange structure consists of the partition plate 43 and the heat dissipation pipe 42. The exhaust gas outlet 45 and the exhaust gas inlet are located on the upper and lower sides of the partition plate 43 and the heat dissipation pipe 42, respectively.

[0048] One dehumidification line 47 is where the heated air evaporated from the drying area inside the multi-layer insulated box 5 enters the shell through the dehumidification pipe 313 and the dehumidification outlet 45. After heat exchange through the heat dissipation partitions 43 of each layer, it is discharged from the dehumidification inlet. During the heat exchange, the heated air will condense into water and fall to the bottom of the shell and be discharged from the condensate inlet 46.

[0049] One supply air line 48 is where outside air enters the heat dissipation pipe 42 from the supply air inlet 44. In the heat dissipation pipe 42, it exchanges heat with the hot air in the dehumidification line 47 and is then discharged from the supply air outlet to the supply air duct 312. After that, it is discharged into the drying area through the supply air duct 312 for moisture exchange.

[0050] like Figure 6 As shown, the multi-layer flipping chain plate device 2 includes multiple flipping drive chain mechanisms and a power transmission chain 25. The multiple flipping drive chain mechanisms are arranged in parallel and staggered positions from top to bottom, and adjacent flipping drive chain mechanisms are connected by the power transmission chain 25. In the specific implementation, three flipping drive chain mechanisms are set, which matches the number of layers in the drying zone. There is one flipping drive chain mechanism in each layer of the drying zone.

[0051] like Figure 7 As shown, each flap drive chain mechanism includes a set of chain drive components, a material flap 24, and a fixed support plate 27; each chain drive component is arranged horizontally, and a material flap 24 is installed in each chain drive component along with the chain. Each periodic link on the chain of each chain drive component is equipped with a material flap 24. The upstream end of the material flap 24 along the chain drive direction is hinged to the chain shaft of the periodic link, and the downstream end along the chain drive direction is not connected and is suspended.

[0052] Each chain drive assembly has a horizontal fixed support plate 27 parallel to the chain on both the upper and lower layers. The fixed support plate 27 is parallel to the upper / lower chain. When the material flip plate 24 moves with the chain of the chain drive assembly, it adheres to the upper surface of the fixed support plate 27 and passes over the fixed support plate 27.

[0053] Each flap drive chain mechanism includes two synchronously moving chain assemblies, horizontally spaced apart. A fixed support plate 27 is arranged between the two chain assemblies. The two periodic chain links of the two synchronously moving chain assemblies are connected by the same material flap 24. That is, the two ends of a material flap 24 are respectively connected to the two periodic chain links of the synchronously moving chain assemblies on both sides by retaining rings 26. Figure 8 As shown.

[0054] Each chain assembly mainly consists of a driving sprocket 21, a driven sprocket 22, and a chain 23 connecting the driving sprocket 21 and the driven sprocket 22. The driving sprocket 21 is used to connect to the motor. In specific implementation, the driving sprockets 21 in the chain drive assemblies of two adjacent flip-plate drive chain mechanisms are connected by a power transmission chain 25.

[0055] like Figure 9As shown, the material flap 24 includes a circular tube 241 and a perforated plate 242. The two circular tubes 241 are arranged in parallel and are fixedly connected by the perforated plate 242. That is, the two circular tubes 241 are fixedly connected to the two sides of the perforated plate 242 and are on the same plane. One of the circular tubes 241 is hinged to the chain shaft of the periodic chain link. Multiple holes are evenly opened on the perforated plate 242 for hot air to pass through, so that the hot air circulation is smoother.

[0056] like Figure 8 As shown, the round tube 241 is used for the rod to pass through, and the rod is connected to the chain shaft of the periodic link after passing through one of the round tubes 241.

[0057] Multiple circular holes can be opened on the perforated plate 242, but the specific shape of the perforation is not limited. Different shapes can be made according to the material. The perforated plate and the circular tube are welded in the middle to avoid material residue at the root.

[0058] When the chain shaft of a certain link of chain 23 passes over the fixed support plate 27, it drives the round tube 241 at the head end along the direction of movement to the fixed support plate 27 first, and then drives the entire material flip plate 24 to flip onto the fixed support plate 27. The material flip plate 24 moves along the upper surface of the fixed support plate 27 with the movement of chain 23. The entire material flip plate 24 is supported by the fixed support plate 27, so that the material flip plate 24 can support fruits and vegetables / seeds and drive the fruits and vegetables / seeds to move with the chain 23.

[0059] When the axle of a link of chain 23 does not pass over the fixed support plate 27, the material flap 24 and the fixed support plate 27 are unrelated. One of the round tubes 241 of the material flap 24 is hinged to the axle of the periodic link, so the other round tube 241 is drooping due to gravity, causing the entire material flap 24 to droop vertically. At this time, the entire material flap 24 cannot support the fruits and vegetables / seeds, and the fruits and vegetables / seeds will fall below from the link position corresponding to the drooping of the other round tube 241.

[0060] For example, when the chain shaft of a certain link of chain 23 moves to the point of disengaging from the fixed support plate 27, the round tube 241 on the front side of the material flip plate 24 along the chain drive direction disengages from the fixed support plate 27 first. However, the round tube 241 that gradually moves to the rear side of the material flip plate 24 along the chain drive direction suddenly disengages from the fixed support plate 27, causing the material flip plate 24 to flip and droop. The fruits and vegetables / seeds that were originally supported on the material flip plate 24 fall to the next layer, thereby realizing the alternating transportation of fruits and vegetables / seeds.

[0061] In the same flip-plate transmission chain mechanism, the two fixed support plates 27 corresponding to the upper and lower chains of the chain transmission components are staggered by a certain distance along the chain transmission direction. Specifically, the fixed support plates 27 corresponding to the upper chain and the fixed support plates 27 corresponding to the lower chain have the same length along the chain transmission direction, but the fixed support plates 27 corresponding to the lower chain are offset relative to the fixed support plates 27 corresponding to the upper chain along the chain transmission direction of the upper chain. This allows the fruits and vegetables / seeds transported by the fixed support plates 27 of the upper chain and the material flip-plate 24 to fall onto the fixed support plates 27 and the material flip-plate 24 of the lower chain after being transported by the upper chain.

[0062] Furthermore, the two fixed support plates 27 corresponding to the upper and lower adjacent chains of the chain drive components in the adjacent flip-plate drive chain mechanism should also be staggered by a certain distance along the chain drive direction. Specifically, the fixed support plates 27 corresponding to the lower chain of the upper flip-plate drive chain mechanism and the fixed support plates 27 corresponding to the upper chain of the lower flip-plate drive chain mechanism have the same length along the chain drive direction. However, the fixed support plates 27 corresponding to the upper chain of the lower flip-plate drive chain mechanism are staggered relative to the fixed support plates 27 corresponding to the lower chain of the upper flip-plate drive chain mechanism by a distance along the chain drive direction of the lower chain. This allows the fruits and vegetables / seeds transported by the fixed support plates 27 of the lower chain of the upper flip-plate drive chain mechanism and the material flip-plate 24 to fall onto the fixed support plates 27 and the material flip-plate 24 of the upper chain of the lower flip-plate drive chain mechanism after being transported by the lower layer of the upper flip-plate drive chain mechanism.

[0063] Ultimately, this results in the two fixed support plates 27 corresponding to each adjacent chain layer in all flip-plate drive chain mechanisms being staggered by a certain distance along the chain drive direction, so that the transportation path of fruits and vegetables / seeds through all flip-plate drive chain mechanisms is S-shaped.

[0064] When the material flap 24 is located on the upper surface of the fixed support plate 27 and is supported and attached, it is in the flap feeding state 243. At this time, the fruits, vegetables or seeds supported on the material flap 24 are transported along the chain drive direction.

[0065] When the material flap 24 is not located on the upper surface of the fixed support plate 27 and is hanging down by gravity at the other end along the chain drive direction, it is in the flap dropping state 244. At this time, the fruits, vegetables or seeds supported on the material flap 24 fall to the lower layer.

[0066] It also includes a ventilator 6, which is arranged above the inlet of the multi-layer turning chain plate device 2 on the outlet side of the feeding conveyor 1, and is used to control the hot air from flowing out of the multi-layer insulation box 5 to prevent heat loss.

[0067] It also includes a control cabinet 7, which is used to electrically connect and control the electrical components in the feeding conveyor 1, the multi-layer turning chain plate device 2, and the layered temperature control drying system 3.

[0068] The overall working process of this utility model is as follows:

[0069] Three drying zones are set up from top to bottom inside the multi-layer insulated box 5, and three flip-plate drive chain mechanisms are set up. Each flip-plate drive chain mechanism is located in one drying zone. Adjacent drying zones are relatively isolated, but openings are set at the required locations for the transportation and connection of areca nut material 0.

[0070] Multiple independent temperature and humidity control chambers are set on both sides above the top of the multi-layer insulated chamber 5. Six air supply chambers and six dehumidification chambers are included. The six air supply chambers are connected to the waste heat recovery system 4 via air supply pipes 312, and the six dehumidification chambers are connected to the waste heat recovery system 313 via dehumidification pipes 313. Each drying zone is connected to two dehumidification chambers and two air supply chambers to ensure smooth dehumidification and air supply to each drying zone. Two left-circulation systems (one dehumidification chamber and one air supply chamber) and two right-circulation systems (one dehumidification chamber and one air supply chamber) ensure uniform material drying through the forward and reverse airflow.

[0071] The areca nut material 0 is transported from the bottom of the feeding conveyor 1 to the top of the feeding conveyor 1, and then falls onto the upper chain of the uppermost flipping conveyor chain mechanism of the multi-layer flipping chain plate device 2. It is transported through the S-shaped path of the flipping conveyor chain mechanism through three drying zones for drying with different humidity / temperature controls, thus roasting the areca nut seeds.

[0072] After the areca nut material 0 falls onto the lower chain of the last layer of the multi-layer flipping chain plate device 2, it falls into the lower turnover basket for collection.

[0073] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

[0074] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A layered temperature-controlled seed roasting machine, characterized in that: It includes a feeding conveyor (1), a multi-layer turning chain plate device (2), a layered temperature-controlled drying system (3), a waste heat recovery system (4), and a multi-layer insulated box (5); the multi-layer insulated box (5) is equipped with a multi-layer turning chain plate device (2), the feeding conveyor (1) is arranged on one side of the multi-layer insulated box (5) for transporting fruits, vegetables or seeds, and one side of the multi-layer turning chain plate device (2) is exposed outside the multi-layer insulated box (5) and connected to the top outlet side of the feeding conveyor (1). The multi-layer insulated box (5) is equipped with a layered temperature-controlled drying system (3) inside and on top, and a waste heat recovery system (4) is installed on the top of the multi-layer insulated box (5). The layered temperature-controlled drying system (3) and the waste heat recovery system (4) are connected.

2. The layered temperature-controlled seed roasting machine according to claim 1, characterized in that: The multi-layer insulated box (5) is divided into multiple drying zones. The multi-layer turning chain plate device (2) is divided into multiple layers with the same number of drying zones, which are used to transport fruits, vegetables or seeds between different drying zones.

3. The layered temperature-controlled seed roasting machine according to claim 1, characterized in that: The layered temperature control drying system (3) includes a layered temperature and humidity control air net (31) installed on the top of the multi-layered insulated box (5), and the layered temperature and humidity control air net (31) is connected to the waste heat recovery system (4).

4. A layered temperature-controlled seed roasting machine according to claim 3, characterized in that: The layered temperature and humidity control air network (31) includes a makeup air fan (311), a makeup air duct (312), and a dehumidification duct (313). Multiple independent makeup air chambers and dehumidification chambers are set on the top of the multi-layer insulation box (5). The makeup air duct (312) and dehumidification duct (313) are also arranged on the top of the multi-layer insulation box (5). Each makeup air chamber and dehumidification chamber is connected to the drying area of ​​its corresponding layer. One end of each makeup air chamber is connected to the makeup air duct (312) via a makeup air manual valve (314). The other end of each dehumidification chamber is connected to the dehumidification manual valve (315), the dehumidification electric valve (316), and the dehumidification duct (313). The inlet end of the makeup air duct (312) is equipped with a makeup air fan (311) for driving makeup air. The inlet of the makeup air duct (312) and the outlet of the dehumidification duct (313) are both connected to the waste heat recovery system (4).

5. A layered temperature-controlled seed roasting machine according to claim 4, characterized in that: The waste heat recovery system (4) has a built-in heat exchange structure. One pipeline of the heat exchange structure is connected to the inlet of the air supply pipeline (312), and the other pipeline is connected to the outlet of the dehumidification pipeline (313). The waste heat recovery system (4) includes a shell and a heat exchange structure arranged in the shell. The heat exchange structure includes a dehumidification fan (41), a heat dissipation pipe (42), and a partition (43). Multiple vertically parallel partitions (43) are installed in the middle of the shell. A heat dissipation pipe (42) is installed in the shell. The heat dissipation pipe (42) passes through each partition (43). Air supply inlet (44) and air supply outlet are opened on both sides of the shell. The two ends of the heat dissipation pipe (42) are connected to the air supply inlet (44) and the air supply outlet, respectively. The top opening of the shell is used as the dehumidification inlet. A dehumidification fan (41) is installed at the dehumidification inlet. The bottom side wall opening of the shell is used as the dehumidification outlet (45). The bottom opening of the shell is used as the condensate inlet (46).

6. A layered temperature-controlled seed roasting machine according to claim 1, characterized in that: The multi-layer flipping chain plate device (2) includes multiple flipping transmission chain mechanisms and power transmission chains (25). The multiple flipping transmission chain mechanisms are arranged in parallel and staggered positions from top to bottom, and the two adjacent flipping transmission chain mechanisms are connected by the power transmission chain (25). Each flap drive chain mechanism includes a set of chain drive components, a material flap (24) and a fixed support plate (27); each periodic link on the chain of each chain drive component is equipped with a material flap (24), the upstream end of the material flap (24) along the chain drive direction is hinged to the chain shaft of the periodic link, and the downstream end along the chain drive direction is not connected and is suspended; Each chain drive assembly has a fixed support plate (27) parallel to the chain on both the upper and lower layers. When the material flipper (24) moves with the chain of the chain drive assembly, it passes over the fixed support plate (27) from the upper surface of the fixed support plate (27).

7. A layered temperature-controlled seed roasting machine according to claim 6, characterized in that: The chain drive assembly includes two chain assemblies that move synchronously. The two chain assemblies are arranged horizontally at intervals. A fixed support plate (27) is arranged between the two chain assemblies. The two periodic chain links of the two chain assemblies that move synchronously with each other are connected by the same material flap (24). Each chain assembly mainly consists of a drive sprocket (21), a driven sprocket (22), and a chain (23) that connects the drive sprocket (21) and the driven sprocket (22) via chain drive. The drive sprocket (21) is used to connect to the motor. The drive sprockets (21) of two adjacent flap drive chain mechanisms are connected by a power transmission chain (25).

8. A layered temperature-controlled seed roasting machine according to claim 6, characterized in that: The material flap (24) includes a round tube (241) and a perforated plate (242). The two round tubes (241) are arranged in parallel and are fixedly connected by the perforated plate (242). One of the round tubes (241) is hinged to the chain shaft of the periodic chain link. The perforated plate (242) has multiple holes.

9. A layered temperature-controlled seed roasting machine according to claim 6, characterized in that: In the same flip-plate transmission chain mechanism, the two fixed support plates (27) corresponding to the upper and lower chains are arranged at different distances along the chain transmission direction. The fixed support plates (27) corresponding to the upper chain and the fixed support plates (27) corresponding to the lower chain have the same length along the chain transmission direction, but the fixed support plates (27) corresponding to the lower chain are offset relative to the fixed support plates (27) corresponding to the upper chain by a distance along the chain transmission direction of the upper chain. Furthermore, the two fixed support plates (27) corresponding to the upper and lower adjacent chains in the adjacent flip-plate transmission chain mechanism should also be staggered along the chain transmission direction. The fixed support plate (27) corresponding to the upper chain of the lower flip-plate transmission chain mechanism is offset relative to the fixed support plate (27) corresponding to the lower chain of the upper flip-plate transmission chain mechanism by a distance along the chain transmission direction of the lower chain.

10. A layered temperature-controlled seed roasting machine according to claim 1, characterized in that: It also includes a ventilator (6), which is arranged above the inlet of the multi-layer turning chain plate device (2) on the outlet side of the feeding conveyor (1); It also includes a control cabinet (7), which is used to electrically connect and control the electrical components in the feeding conveyor (1), the multi-layer turning chain plate device (2), and the layered temperature control drying system (3).

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