Vertical stacked type rusk steaming machine

Abstract

The utility model belongs to the equipment technical field of steaming rice bran, specifically relates to a vertical type of steaming rice bran machine of layering, including support frame, spreading and cooling section, cooking section, steam collecting cover, discharge gate and feeding hopper, spreading and cooling section includes at least one layer spreading and cooling area, and cooking section includes multilayer cooking area and the moisture removal area arranged between every two adjacent layers of cooking area, the utility model prolongs the path and the residence time of rice hull in single -layer cooking area, improves the fullness of cooking, and the scraper conveyor also has the turning effect, promotes the heat mass exchange uniformity, reduces the number of layers of cooking area, reduces equipment height, manufacturing cost and equipment operation energy consumption, also not prone to material jam, guarantees production continuity and stability, also can effectively control the cooking environment of each layer cooking area, thereby steam will not lose heat quickly, reduces steam consumption, avoids waste gas ascending to the upper cooking area, and further interferes with the process condition to occur, to improve the cooking uniformity and efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of rice bran steaming equipment, specifically relating to a vertical stacked rice bran steaming machine. Background Technology

[0002] Steaming rice husks is an important pretreatment step in the brewing process. Currently, the mainstream rice husk steaming equipment on the market is mainly divided into steel belt type and chain plate type. These types of equipment usually consist of two main parts: a cooking section and a cooling section. Their significant disadvantage is that they occupy a large area, and in order to promote the volatilization of off-flavors such as furfural produced during the cooking process, the top cover of the cooking section is mostly adopted with a semi-open structure; however, this design easily leads to a large amount of steam spreading in the production workshop, causing a deterioration of the working environment; at the same time, the open top cover also makes the steam heat dissipate very easily, significantly increasing the steam consumption during the rice husk steaming process.

[0003] To overcome the drawbacks of the aforementioned open-type equipment and reduce the floor space required, the stacked rice bran steamer has emerged. It adopts a vertically stacked, fully enclosed structure, which effectively reduces the floor space occupied by the equipment and significantly reduces steam leakage and heat loss, giving it advantages in energy saving and environmental improvement.

[0004] However, existing stacked rice bran steaming machines still have significant shortcomings: Current equipment commonly uses a plate chain conveyor mechanism, which allows rice husks to only move in a single linear path within each cooking zone. Therefore, to ensure the required cooking effect and uniformity, it is necessary to have more cooking zones. This not only increases the overall height of the equipment but also raises manufacturing costs and energy consumption. Furthermore, during operation, rice husks are prone to getting stuck in the gaps of the plate chain (especially during chain turning), causing material retention and blockages, leading to equipment malfunctions and affecting production continuity and stability. Utility Model Content

[0005] The purpose of this invention is to provide a vertical stacked steaming rice bran machine, which solves the technical problems of high overall equipment height, high manufacturing cost and high operating energy consumption, and easy material jamming during the conveying process in the existing technology.

[0006] This utility model discloses a vertical stacked type steaming rice bran machine, comprising: Support frame; The cooling section is located on the support frame and includes at least one layer of cooling areas stacked vertically. The steaming section is located on the cooling section and includes multiple steaming zones arranged vertically and a dehumidification zone located between each two adjacent steaming zones. Each dehumidification zone is connected to the steaming zone immediately below it, and each dehumidification zone has a number of first dehumidification ports on its sidewall. A steam collection hood is located at the top of the uppermost cooking zone, and its top is provided with several second moisture outlets; The discharge port is located on one side of the bottom of the lowest cooling area and is connected to the cooling area of ​​that layer. The feed hopper is located at one end of the top of the steam collection hood and is connected to the topmost cooking zone. The cooling area includes: The cooling box has a first material inlet at one end of its bottom surface, and inside it has a linear material trough with an opening on the top surface, a cooling chamber located below the linear material trough, and a discharge channel connecting the tail end of the linear material trough and the first material inlet. The first scraper conveying mechanism is installed in the linear trough in a cyclical manner; Multiple fans are installed on the outside of the cooling box, and their air outlets are connected to the cooling chamber. The linear material trough is connected to the cooling chamber through multiple ventilation holes, and multiple air outlets are provided on the upper part of the side wall of the linear material trough. The cooking zone includes: The cooking chamber has a second feed inlet at one end of its bottom surface, and inside it has an annular feed trough with an opening on the top surface, a steam chamber located below the annular feed trough, and a feed channel connecting the annular feed trough and the second feed inlet. The second scraper conveying mechanism is installed in the annular trough in a cyclical manner; Multiple steam pipes are installed in the steam chamber, with their steam inlets extending out of the cooking tank, and multiple steam nozzles are provided on the pipes located in the steam chamber. The annular feed trough and the steam chamber are connected by multiple steam holes, and the steam nozzle is located at the bottom of the steam pipeline.

[0007] This application enables a reliable U-shaped conveying path for materials within each cooking zone, thereby extending the material's path and residence time within a single layer, improving the thoroughness of cooking. Simultaneously, the scraper conveyor also has a turning effect, promoting uniform heat and mass exchange. This reduces the number of cooking zones in the equipment, lowers the overall equipment height, manufacturing costs, and operating energy consumption, and reduces the likelihood of material jamming, thus minimizing equipment malfunctions and ensuring production continuity and stability. Furthermore, it effectively controls the cooking environment in each cooking zone, preventing rapid heat loss from steam passing through the rice husk layer, reducing steam consumption during rice husk cooking, and preventing waste gas from rising to the upper cooking zone and interfering with the process. This improves cooking uniformity and efficiency.

[0008] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, it includes: An impeller feeder is installed at the inlet of the feed hopper; The impeller unloader is installed in the material discharge channel of the lowest cooking zone. This solution achieves dynamic sealing at key interfaces while ensuring continuous material conveying, preventing unnecessary gas leakage between the external environment and the cooking section, and between the cooking section and the cooling section. It maintains an independent and stable working environment for each process section, reduces steam escape losses, and improves the cooling efficiency of the fan.

[0009] Preferably, the cooling box body has a space between its two inner walls: Ventilation mesh panels, arranged horizontally; The first guide plate is arc-shaped and is located at the end of the ventilation mesh plate away from the discharge channel, and is connected to the adjacent end wall of the cooling box. The second guide plate is arc-shaped and is located on the end wall of the cooling box near the discharge channel; The first discharge plate is located below the ventilation mesh plate. One end of the plate is connected to the lower end of the ventilation mesh plate near the discharge channel, and the other end extends downward and connects to the inner bottom wall of the cooking chamber. The second discharge plate is located below the ventilation mesh plate. One end of the plate is connected to the bottom end of the second guide plate, and the other end extends downward and connects to the inner bottom wall of the cooking chamber. The linear material trough is defined by the upper surface of the ventilation mesh plate, the inner arc surface of the first guide plate, the inner arc surface of the first guide plate, and the corresponding inner sidewall of the cooling box. The cooling chamber is formed by the lower surface of the ventilation mesh plate, the first guide plate, the first discharge plate, the inner bottom wall of the cooling box, and the corresponding inner sidewall. The discharge channel is formed by the first discharge plate, the second discharge plate, and the corresponding inner sidewall of the cooling box. This solution defines the material movement path, creates a cooling chamber, achieves efficient penetration cooling, completes spatial separation and sealing, optimizes the airflow path, and avoids short circuits or leaks.

[0010] Preferably, the cooling box body is further provided with: The first grille is located on the bottom surface of the ventilation mesh plate; The return support plate is arranged laterally in the linear trough to support the upper forward section of the first scraper conveyor mechanism. Multiple first partitions are arranged laterally at intervals within the cooling chamber to divide the cooling chamber into multiple cooling rooms, and each cooling room is equipped with a fan. This solution makes the cooling area more complete, reliable, and efficient, ensuring the stability and uniformity of the rice husks during the cooling process and the durability of the equipment operation.

[0011] Preferably, the first scraper conveying mechanism includes: Two first rotating shafts are rotatably installed at both ends of the interior of the linear material trough; Two first transmission units are respectively located on both sides of the interior of the linear material trough; The first motor is installed on the outside of the cooling box and is connected to a first rotating shaft for transmission. Multiple first scrapers are disposed between the two first transmission units; Each of the first transmission units includes: Two first sprockets are respectively fixedly mounted on two first rotating shafts; The first chain is fitted onto and meshes with the two first sprockets and is connected to the first scraper. This design ensures that the first scraper is subjected to uniform force at both ends, operates stably and reliably, is suitable for long-distance conveying and conveying that requires overcoming certain material resistance, and also ensures the continuity and efficiency of material conveying.

[0012] Preferably, the inner walls of the two sides of the cooking chamber are provided with: The lower layer of wire mesh is arranged horizontally; The upper mesh plate is arranged horizontally and located above the lower mesh plate, and is in contact with the bottom surface of the upper forward section of the second scraper conveying mechanism; The third guide plate is arc-shaped and is located at the end of the lower mesh plate away from the feed hopper, and is connected to the end of the cooking chamber away from the feed hopper; The fourth guide plate, which is arc-shaped, is located on the inner wall of the cooking chamber at the end near the feed hopper; Two end plates are located at both ends of the ventilation mesh plate and extend downward to the inner bottom wall connecting the cooking chamber. The material discharge guide plate is located below the ventilation mesh plate, with one end connected to the bottom end of the fourth guide plate and the other end extending downward and connecting to the inner bottom wall of the cooking chamber. The annular material trough is formed by the upper surface of the lower mesh plate, the upper mesh plate, the inner arc surface of the third guide plate, the inner arc surface of the fourth guide plate, and the corresponding inner sidewall of the cooking chamber. The steam chamber is formed by the lower surface of the lower mesh plate, two end plates, the inner bottom wall of the cooking chamber, and the corresponding inner sidewall. The material discharge channel is formed by the material discharge guide plate, an end plate near the fourth guide plate, and the corresponding inner sidewall of the cooking chamber. This design forms an annular material path, enabling the material to reflux within a single layer. This significantly extends the cooking path and time, and allows steam to penetrate the material layer evenly for direct heating and humidification. This ensures that the material in the cooking zone is fully and evenly cooked, the steam is used efficiently, the material transport path is long and controllable, and the material discharge is smooth.

[0013] Preferably, the inner walls of the two sides of the cooking chamber are provided with: The second grid is disposed on the bottom surface of the lower mesh plate; The third grid is located on the bottom surface of the upper mesh plate; Multiple second partitions are arranged laterally at intervals in the steam chamber to divide the steam chamber into multiple steam rooms, and each steam room is equipped with a steam pipeline. This solution significantly improves the durability, operational stability and process control precision of the cooking zone, ensuring that the rice husks can be fully and uniformly cooked.

[0014] Preferably, the second scraper conveying mechanism includes: Two second rotating shafts are rotatably mounted at both ends of the inside of the annular material trough; Two second transmission units are respectively located on both sides of the inside of the annular material trough; The second motor is installed on the outside of the cooking chamber and is connected to a second rotating shaft for transmission. Multiple second scrapers are disposed between the two second transmission units; Each of the second transmission units includes: Two second sprockets are respectively fixedly mounted on two second rotating shafts; The second chain is fitted onto and meshes with the two second sprockets and is connected to the second scraper. This design ensures that the second scraper is subjected to uniform force at both ends, operates stably and reliably, is suitable for long-distance conveying and conveying that requires overcoming certain material resistance, and also ensures the continuity and efficiency of material conveying.

[0015] Preferably, it includes: Drainage pipes, including Supervisor, vertical layout; Multiple branch pipes are spaced apart along the length of the main pipe and correspond one-to-one with the cooking zone; The steam chamber has a drainage hole at the bottom of its side wall. One end of the branch pipe is connected to the main pipe, and the other end is connected to the steam chamber corresponding to the cooking zone through the drainage hole. This solution effectively solves the problem of steam condensate discharge by using layered collection and gravity guidance, ensuring the smooth operation of the cooking process and the safety of the equipment.

[0016] Preferably, the steam pipeline has a horizontally arranged, convex structure; by adopting this solution, the steam supply efficiency and uniformity in the cooking zone are improved, and the consistency and quality stability of the cooking effect are enhanced.

[0017] Through the above technical solution, this utility model achieves the following beneficial effects: 1. By installing a second scraper conveyor mechanism in the annular trough, this application enables the material to reliably follow a U-shaped conveying path within each cooking zone, thereby extending the path and residence time of the material in a single layer, improving the adequacy of cooking. At the same time, the scraper conveyor also has a turning effect, which promotes the uniformity of heat and mass exchange. This reduces the number of cooking zones in the equipment, lowers the overall height of the equipment, manufacturing costs, and energy consumption, and also reduces the likelihood of material jamming, thus reducing equipment malfunctions and ensuring production continuity and stability. 2. This application effectively controls the cooking environment of each cooking zone by setting a steam collection hood at the top of the top cooking zone and setting a dehumidification zone between the cooking zones, and then discharging the exhaust gas through the first dehumidification port on the side wall of the dehumidification zone and the second dehumidification port at the top of the steam collection hood. This ensures that the steam passing through the rice husk layer does not lose heat quickly, reducing the steam consumption required during the rice husk cooking process, and also prevents the exhaust gas from rising to the upper cooking zone through the material drop channel and interfering with the process. This improves the uniformity and efficiency of cooking. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the vertical stacked steaming rice husk machine described in a specific embodiment of this utility model; Figure 2 for Figure 1 The diagram shows a front sectional view of a vertical stacked rice steamer. Figure 3 for Figure 2 The diagram shows the structure of the cooking zone in a vertical stacked rice steamer. Figure 4 for Figure 2 A schematic diagram of the cooling zone in a vertical stacked steaming rice husk machine; Figure 5 for Figure 1 The rear view of the vertical stacked rice bran steamer shown; Figure 6 for Figure 1 The image shows a side sectional view of a vertical stacked rice bran steamer. Explanation of reference numerals in the attached figures: 1. Support frame; 2. Cooling section; 3. Cooking section; 4. Steam hood; 5. Discharge port; 6. Feed hopper; 7. Impeller feeder; 8. Impeller unloader; 9. Drainage pipeline; 21. Cooling area; 21A. Linear trough; 21B. Cooling chamber; 21B1. Cooling room; 21C. Discharge channel; 211. Cooling box body; 21101. First material inlet; 21102. Air outlet; 212. First scraper conveyor mechanism; 2121. First rotating shaft; 2122. First transmission unit; 21221. First sprocket; 21222. First chain; 2123. First motor; 2124. First scraper; 213. Fan; 214. Ventilation mesh plate; 215. First guide plate; 216. Second guide plate; 217. First discharge plate; 218. Second discharge plate; 219. First grid; 2110. Return support plate; 2111. First partition plate; 31. Cooking Zone; 31A. Annular Feed Tank; 31B. Steam Chamber; 31B1. Steam Room; 31C. Material Discharge Channel; 311. Cooking Chamber Body; 31101. Second Feed Inlet; 31102. Drain Hole; 312. Second Scraper Conveying Mechanism; 3121. Second Rotating Shaft; 3122. Second Transmission Unit; 31221. Second Sprocket; 31222. Second Chain; 3123. Second Motor; 3124. Second Scraper; 313. Steam Pipeline; 314. Lower Mesh Plate; 315. Upper Mesh Plate; 316. Third Guide Plate; 317. Fourth Guide Plate; 318. End Plate; 319. Material Discharge Guide Plate; 3110. Second Grille; 3111. Third Grille; 3112. Second Baffle; 32. Dehumidification Zone; 321. First Dehumidification Outlet; 41. Second drainage outlet; 91. Main pipe; 92. Branch pipe. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] The terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the stated features.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0024] Example: like Figure 1 and Figure 2 As shown in the embodiment of this application, a vertical stacked rice husk steaming machine is disclosed, which can continuously steam and cool rice husks. It has the advantages of low overall equipment height, low manufacturing cost and low operating energy consumption, and less material jamming during the conveying process. It adopts a vertical layered modular design, which is divided into the following sections from bottom to top: support frame 1, cooling section 2, steaming section 3 and steam collection hood 4; and the material flow direction is from top to bottom, passing through the feed hopper 6, steaming section 3, cooling section 2 and discharge port 5 in sequence.

[0025] Support frame 1 is located at the bottom of the equipment to support the weight of the entire machine and provide stable support.

[0026] The cooling section 2 is set on the support frame 1 and includes at least one layer of cooling area 21 stacked vertically, which is used to cool and reduce the moisture of the steamed rice husks so that they reach a suitable temperature and humidity.

[0027] The cooking section 3 is located on the cooling section 2 and includes a multi-layer cooking zone 31 arranged vertically and a dehumidification zone 32 located between each two adjacent cooking zones 31. Each dehumidification zone 32 is connected to the cooking zone 31 below it and is used to collect the humid heat exhaust gas generated by the cooking of the lower layer. Each dehumidification zone 32 has a number of first dehumidification ports 321 on its side wall. The first dehumidification ports 321 are connected to an external exhaust system and are used to discharge the humid heat exhaust gas collected by the cooking zone 31 to the side of the equipment.

[0028] The steam collection hood 4 is located at the top of the top cooking zone 31, forming a closed space at the top for collecting the humid and hot exhaust gas generated in the top cooking zone 31, thereby preventing steam from spreading to the working workshop. Several second vents 41 are provided at the top of the hood, which are connected to the external exhaust system to discharge the exhaust gas collected at the top by the steam collection hood 4.

[0029] The discharge port 5 is located on one side of the bottom of the lowest cooling area 21 and is connected to the cooling area 21. It is the final outlet of the rice husk after steaming and cooling. The rice husk is discharged from the equipment through this port and can be transported to the finished rice husk warehouse for storage by conveying equipment such as screw conveyor, scraper or belt conveyor.

[0030] The feed hopper 6 is located at the top end of the steam collecting hood 4 and is connected to the top cooking zone 31. It is used to guide the raw rice husks to be cooked into the input end of the top cooking zone 31 so that the processing process can begin. A material observation window and a maintenance manhole can be provided on its side to facilitate observation of the feeding situation and maintenance.

[0031] For example, the cooking zone 31 is set to three layers and the cooling zone 21 is set to one layer. This arrangement is more reasonable and optimized because the material layer thickness of the cooking zone 31 is about three times that of the cooling zone 21 in actual production. However, it is not limited to this. If the workshop height allows, the number of layers of the cooking zone 31 and the cooling zone 21 can be appropriately increased in order to improve production capacity.

[0032] Specifically, such as Figure 4 As shown, the cooling area 21 includes: a cooling box 211, a first scraper conveying mechanism 212, and multiple fans 213.

[0033] The cooling box 211 has a first material inlet 21101 at one end of its bottom surface, and inside it has a linear material trough 21A with a top opening, a cooling chamber 21B located below the linear material trough 21A, and a discharge channel 21C connecting the tail end of the linear material trough 21A with the first material inlet 21101.

[0034] It should be noted that the linear feed trough 21A is used to hold the rice husks to be cooled, and the rice husks are pushed forward in it by the first scraper conveyor mechanism 212; the cooling chamber 21B is a chamber for dispersing the cooling air; the discharge channel 21C is used to guide the cooled material out of the cooling area 21 and into the next cooling area 21 or the discharge port 5; the first discharge port 21101 is the outlet for the rice husks to leave the cooling area 21.

[0035] The first scraper conveyor mechanism 212 is cyclically installed in the linear trough 21A. Its scraper pushes the rice husks along the trough from the inlet end toward the outlet channel 21C, thereby realizing the horizontal conveying and a certain degree of tumbling of the material.

[0036] Multiple fans 213 are installed on the outside of the cooling box 211, and their air outlets are connected to the cooling chamber 21B to blow cooling airflow into the cooling chamber 21B.

[0037] The linear feed trough 21A is connected to the cooling chamber 21B through multiple ventilation holes, which allow the cold air in the cooling chamber 21B to penetrate upwards through the rice husk layer in the linear feed trough 21A, thereby removing heat and moisture. Multiple air outlets 21102 are provided on the upper side wall of the linear feed trough 21A to discharge the hot and humid air that has penetrated the rice husk layer, thus completing the cooling and dehumidification process.

[0038] Specifically, such as Figure 3 As shown, the cooking zone 31 includes: a cooking chamber 311, a second scraper conveying mechanism 312, and multiple steam pipes 313.

[0039] The bottom end of the cooking chamber 311 is provided with a second feed port 31101, and the interior has an annular feed trough 31A with an opening on the top surface, a steam chamber 31B located below the annular feed trough 31A, and a discharge channel 31C connecting the annular feed trough 31A and the second feed port 31101.

[0040] It should be noted that the annular feed trough 31A is used to hold the rice husks to be cooked. It is square and looped, thus forming a U-shaped conveying path. This significantly extends the conveying path and residence time of the rice husks in the single-layer cooking zone 31, ensuring thorough cooking. The steam chamber 31B is a chamber used to disperse steam. The discharge channel 31C is used to guide the cooked rice husks out of the cooking zone 31 and into the next cooking zone 31 or the cooling zone 21. The second feed port 31101 is the outlet for the rice husks to leave the cooking zone 31.

[0041] The second scraper conveying mechanism 312 is installed in the annular trough 31A in a cyclic operation. Its scraper pushes the rice husks to move along the annular path, thereby achieving long-distance conveying and ensuring sufficient cooking time.

[0042] Multiple steam pipes 313 are installed inside the steam chamber 31B, with their steam inlets extending out to the outside of the cooking tank 311. Multiple steam nozzles are provided on the pipes located inside the steam chamber 31B to introduce external steam into the steam chamber 31B.

[0043] The annular feed trough 31A and the steam chamber 31B are connected by multiple steam holes, which allow the steam in the steam chamber 31B to penetrate upwards into the rice husk layer in the annular feed trough 31A, thereby directly heating and humidifying it.

[0044] The steam nozzle is located at the bottom of the steam pipe 313, which allows the condensate in the steam pipe 313 to naturally collect at the nozzle under the action of gravity, and then be sprayed into the steam chamber 31B together with the high-speed steam flow. This prevents the condensate from accumulating in the pipe and also promotes the rapid diffusion and convection of steam in the steam chamber 31B, thereby forming a uniform saturated steam environment more quickly and improving the uniformity of steam distribution.

[0045] The present invention achieves the following technical effects through the above design: First, by installing a second scraper conveyor mechanism 312 in the annular trough 31A, the material can be reliably conveyed in a U-shape within each cooking zone 31, thereby extending the path and residence time of the material in a single layer, improving the fullness of cooking. At the same time, the scraper conveyor also has a turning effect, which promotes the uniformity of heat and mass exchange. This reduces the number of cooking zones in the equipment, and lowers the overall height of the equipment, manufacturing cost, and energy consumption. It also reduces the likelihood of material jamming, thus reducing equipment malfunctions and ensuring production continuity and stability. Second, by setting a steam collection hood 4 at the top of the top cooking zone 31 and setting a dehumidification zone 32 between the cooking zones 31, and then discharging the exhaust gas through the first dehumidification port 321 on the side wall of the dehumidification zone 32 and the second dehumidification port 41 at the top of the steam collection hood 4, the cooking environment of each cooking zone 31 can be effectively controlled. This ensures that the steam passing through the rice husk layer does not lose heat quickly, reducing the steam consumption required during the rice husk cooking process, and also prevents the exhaust gas from rising to the upper cooking zone 31 through the material drop channel 31C, thus interfering with the process. This improves the uniformity and efficiency of cooking.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, it includes: The impeller feeder 7, installed at the inlet of the feed hopper 6, can uniformly and quantitatively transport rice husk raw materials to the top cooking zone 31, thereby maintaining the stability of the material flow rate in the equipment, ensuring the stability of the cooking and cooling processes, and effectively preventing steam in the cooking section 3 from leaking out through the feed hopper 6, thereby reducing heat loss and improving steam utilization efficiency. The impeller unloader 8 is installed in the material discharge channel 31C of the bottom cooking zone 31. It can control the conveying flow and speed of the cooked rice husks, coordinate the material conveying balance between the cooking section 3 and the cooling section 2, and effectively prevent the steam and hot air from mixing between the cooking zone 31 and the cooling zone 21, which helps to improve the steam utilization efficiency and cooling efficiency.

[0047] Preferably, the feed hopper 6 is equipped with high and low level sensors; when the rice husk material layer in the feed hopper 6 reaches the high level, the impeller feeder 7 stops feeding; when the rice husk material layer in the feed hopper 6 reaches the low level, the second scraper conveyor mechanism 312 in the top cooking zone 31 can start; this ensures the stability of feeding and avoids material overflow or idling of the mechanism.

[0048] Through the above design, dynamic sealing at key interfaces is achieved while ensuring continuous material conveying, preventing unnecessary gas leakage between the external environment and cooking section 3, and between cooking section 3 and cooling section 2. This maintains an independent and stable working environment for each process section, reduces steam escape losses, and improves the cooling efficiency of the blower.

[0049] In some embodiments, such as Figure 4 As shown, the cooling box 211 has the following components between its two inner walls: a ventilation mesh plate 214, a first guide plate 215, a second guide plate 216, a first discharge plate 217, and a second discharge plate 218.

[0050] The ventilation mesh plate 214 is arranged horizontally to form the middle section bottom plate of the linear material trough 21A, so that the material is pushed and moved on its upper surface by the first scraper conveying mechanism 212, and its mesh structure allows the cold air of the cooling chamber 21B below to penetrate the rice husk material layer covering it evenly and vertically upward, thereby achieving efficient cooling and dehumidification.

[0051] The first guide plate 215 is arc-shaped and is located at the end of the ventilation mesh plate 214 away from the discharge channel 21C, that is, the feeding end where the rice husks enter the cooling area 21. It is connected to the adjacent end wall of the cooling box 211 and is used to form the bottom plate of the feeding end of the linear material trough 21A to prevent a large amount of cold air from the cooling chamber 21B from escaping from this end. Its arc-shaped inner surface is smoothly connected to the upper surface of the ventilation mesh plate 214, which can gently guide the material falling from the upper layer onto the ventilation mesh plate 214, avoiding material impact accumulation or splashing.

[0052] The second guide plate 216 is arc-shaped and is located on the end wall of the cooling box 211 near the discharge channel 21C, that is, the discharge end where the rice husks leave the cooling area 21. Its arc-shaped inner surface can smoothly turn the material into the discharge channel 21C, reducing the blockage and residue of the material at the corner.

[0053] The first discharge plate 217 is located below the ventilation mesh plate 214. One end of it is connected to the lower end of the ventilation mesh plate 214 near the discharge channel 21C, and the other end extends downward and connects to the inner bottom wall of the cooking chamber 311. It is used to separate the cooling chamber 21B from the discharge channel 21C, and plays a role in sealing and guiding.

[0054] The second discharge plate 218 is located below the ventilation mesh plate 214. One end of it is connected to the bottom end of the second guide plate 216, and the other end extends downward and connects to the inner bottom wall of the cooking chamber 311. It forms the boundary of the discharge channel 21C and plays a role in sealing and guiding.

[0055] The linear material trough 21A is formed by the upper surface of the ventilation mesh plate 214, the inner arc surface of the first guide plate 215, the inner arc surface of the first guide plate 215, and the corresponding inner sidewall of the cooling box 211; the cooling chamber 21B is formed by the lower surface of the ventilation mesh plate 214, the first guide plate 215, the first discharge plate 217, the inner bottom wall of the cooling box 211, and the corresponding inner sidewall; the discharge channel 21C is formed by the first discharge plate 217, the second discharge plate 218, and the corresponding inner sidewall of the cooling box 211.

[0056] Through the coordinated work of the above components, the material movement path is defined, the cooling chamber 21B is created, efficient penetration cooling is achieved, spatial separation and sealing are completed, the airflow path is optimized, and short circuits or leaks are avoided.

[0057] Based on the above embodiments, such as Figure 4 As shown, between the inner walls of the two sides of the cooling box 211, there are also: a first grid 219, a return support plate 2110 and multiple first partitions 2111.

[0058] The first grille 219 is located on the bottom surface of the ventilation mesh plate 214 to provide auxiliary support for the ventilation mesh plate 214, thereby enhancing its structural strength and preventing deformation caused by the weight of the material.

[0059] The return support plate 2110 is arranged laterally in the linear trough 21A to support the upper forward section of the first scraper conveyor mechanism 212, thereby providing physical support and running track for the upper forward section when returning unloaded, preventing the return section from sagging or shaking, and ensuring the smoothness and reliability of operation.

[0060] Multiple first partitions 2111 are arranged laterally in the cooling chamber 21B to divide the cooling chamber 21B into multiple cooling rooms 21B1. Each cooling room 21B1 is equipped with a fan 213, thereby realizing zoned cooling control, optimizing airflow distribution and cooling uniformity, so that the material can obtain a relatively uniform cooling effect along the entire length of the linear trough 21A, avoiding local overheating or insufficient cooling.

[0061] The above design makes the cooling area 21 more complete, reliable and efficient, ensuring the stability and uniformity of the rice husks during the cooling process and the durability of the equipment operation.

[0062] In some embodiments, such as Figure 1 , Figure 4 and Figure 6 As shown, the first scraper conveying mechanism 212 includes: two first rotating shafts 2121, two first transmission units 2122, a first motor 2123, and multiple first scrapers 2124.

[0063] Two first rotating shafts 2121 are rotatably installed at both ends of the interior of the linear trough 21A, serving as the driving shaft and driven shaft of the entire conveying mechanism, and the distance between them is the length of the circulation path.

[0064] Two first transmission units 2122 are respectively located on both sides of the interior of the linear trough 21A to achieve synchronous driving on both sides, provide symmetrical driving force and support for the first scraper 2124 on both sides, ensure smooth operation, and prevent deviation or jamming caused by force on one side.

[0065] The first motor 2123 is installed on the outside of the cooling box 211 for easy maintenance and heat dissipation, and to avoid the humid environment from affecting the motor's lifespan. It is connected to a first rotating shaft 2121 to provide a power source, and the power is transmitted through a coupling, reducer and other transmission components.

[0066] Multiple first scrapers 2124 are disposed between two first transmission units 2122, and their surfaces are in contact with the material. Thus, when the chain moves forward at the bottom of the linear trough 21A, the first scrapers 2124 push the material in front of them toward the discharge end.

[0067] Among them, such as Figure 4 As shown, each first transmission unit 2122 includes: Two first sprockets 21221 are respectively fixedly mounted on two first shafts 2121 to support the two ends of the first chain 21222 and drive it to perform cyclic motion. The first chain 21222 is sleeved and meshed on the two first sprockets 21221 and connected to the first scraper 2124, serving as the carrier and traction component of the first scraper 2124.

[0068] The working process of the first scraper conveying mechanism 212 mentioned above is as follows: The first motor 2123 starts, driving the first rotating shaft 2121 connected to it to rotate. The two first sprockets 21221 on the first rotating shaft 2121 rotate accordingly, and the first chain 21222 meshing with the first sprockets 21221 is driven to start cyclical motion. At the same time, the first scraper 2124 fixed between the first chains 21222 on both sides moves with the chain. When the first scraper 2124 moves to the bottom of the linear trough 21A, its plate surface pushes the material in front to move towards the end of the trough. After the first scraper 2124 reaches the end, it pushes the material into the discharge channel 21C, and then, along with the first chain 21222, it goes around the first sprocket 21221 at the end and enters the return section. After that, it returns to the starting end unloaded, and then enters the working section again to start a new round of material pushing.

[0069] The above design of the first scraper conveying mechanism 212 ensures that the first scraper 2124 is subjected to uniform force at both ends through the independent first transmission units 2122 on both sides, and that it operates stably and reliably. It is suitable for long-distance conveying and conveying that needs to overcome certain material resistance. Furthermore, by fixing multiple first scrapers 2124 at a certain interval on the first chain 21222, the continuity and efficiency of material conveying are guaranteed.

[0070] In some embodiments, such as Figure 3 As shown, the inner walls of the two sides of the cooking chamber 311 are provided with: a lower mesh plate 314, an upper mesh plate 315, a third guide plate 316, a fourth guide plate 317, two end plates 318 and a discharge guide plate 319.

[0071] The lower mesh plate 314 is arranged horizontally to form the lower bottom plate of the annular feed trough 31A. The rice husks are pushed back by the second scraper conveying mechanism 312 on its upper surface. Its mesh structure allows the steam from the lower steam chamber 31B to penetrate evenly and vertically upward into the upper annular feed trough 31A to heat and humidify the rice husks, achieving efficient and uniform cooking and playing the role of separating spaces.

[0072] The upper mesh plate 315 is arranged horizontally and located above the lower mesh plate 314. It is in contact with the bottom surface of the upper forward section of the second scraper conveying mechanism 312 and is used to form the upper bottom plate of the annular feed trough 31A. The rice husks are pushed forward by the second scraper conveying mechanism 312 on its upper surface. Its mesh structure allows steam to penetrate upward from the lower layer of the annular feed trough 31A, thereby heating and humidifying the rice husks, achieving efficient and uniform cooking, and playing the role of separating spaces.

[0073] The third guide plate 316 is arc-shaped and is located at the end of the lower mesh plate 314 away from the feed hopper 6 (i.e., the position where the material needs to turn back at the far end in the annular path). It is also connected to the end of the cooking chamber 311 away from the feed hopper 6. Its arc-shaped inner surface guides the rice husks to smoothly turn towards the lower mesh plate 314, realizing the U-shaped turn of the material in the annular feed trough 31A and extending the material path.

[0074] The fourth guide plate 317 is arc-shaped and is located on the inner wall of the end of the cooking chamber 311 near the feed hopper 6. Its arc-shaped inner surface can guide the material to smoothly turn into the discharge channel 31C, so that it leaves the cooking zone 31.

[0075] Two end plates 318 are located at both ends of the ventilation mesh plate 214 and extend downward to the inner bottom wall of the cooking chamber 311 to seal the two ends of the steam chamber 31B in the length direction.

[0076] The material discharge guide plate 319 is located below the ventilation mesh plate 214, with one end connected to the bottom end of the fourth guide plate 317 and the other end extending downward and connecting to the inner bottom wall of the cooking chamber 311. Its inclined plate surface will receive the material guided down from the fourth guide plate 317 and smoothly guide it into the bottom of the material discharge channel 31C.

[0077] It should be noted that the material guide plate 319 can extend downward into the dehumidification zone 32, thereby ensuring that after the material is output from the second feed port 31101 of the cooking zone 31, it can fall stably and smoothly into the upper end of the annular feed trough 31A in the next cooking zone 31.

[0078] The annular feed trough 31A is formed by the upper surface of the lower mesh plate 314, the upper mesh plate 315, the inner arc surface of the third guide plate 316, the inner arc surface of the fourth guide plate 317, and the corresponding inner sidewall of the cooking chamber 311. The steam chamber 31B is formed by the lower surface of the lower mesh plate 314, the two end plates 318, the inner bottom wall of the cooking chamber 311, and the corresponding inner sidewall. The material discharge channel 31C is formed by the material discharge guide plate 319, an end plate 318 near the fourth guide plate 317, and the corresponding inner sidewall of the cooking chamber 311.

[0079] Through the coordinated work of the above components, a ring-shaped material path is formed, realizing the material's return within a single layer. This significantly extends the cooking path and time, and allows steam to penetrate the material layer evenly for direct heating and humidification. This ensures that the material in the cooking zone 31 can be fully and evenly cooked, the steam is used efficiently, the material conveying path is long and controllable, and the material falls smoothly.

[0080] Based on the above embodiments, such as Figure 3 As shown, the inner walls on both sides of the cooking chamber 311 are also provided with: a second grid 3110, a third grid 3111 and multiple second partitions 3112.

[0081] The second grid 3110 is located on the bottom surface of the lower mesh plate 314 to provide auxiliary support for the lower mesh plate 314, thereby enhancing its structural strength and preventing deformation caused by the weight of the material.

[0082] The third grid 3111 is located on the bottom surface of the upper mesh plate 315 and is used to provide auxiliary support for the upper mesh plate 315, thereby enhancing its structural strength and preventing deformation caused by the weight of the material.

[0083] Multiple second partitions 3112 are arranged laterally at intervals within the steam chamber 31B to divide the steam chamber 31B into multiple steam rooms 31B1. Each steam room 31B1 is equipped with a steam pipe 313 to achieve zoned steam control and optimize steam distribution and cooking uniformity.

[0084] It should be noted that in the initial stage of equipment operation, when the rice husks just enter the cooking zone 31, as the scraper pushes the rice husks forward, the steam pipes 313 in each steam room 31B1 start to introduce steam in sequence, which can reduce steam waste while ensuring the cooking effect.

[0085] For example, a solenoid valve and a shut-off valve are installed at the inlet of the steam pipeline 313, thereby enabling independent control of the steam inlet of each steam pipeline 313.

[0086] The above design significantly improves the durability, operational stability, and process control precision of the cooking zone 31, ensuring that the rice husks can be fully and evenly cooked.

[0087] In some embodiments, such as Figure 1 , Figure 3 and Figure 6 As shown, the second scraper conveying mechanism 312 includes: two second rotating shafts 3121, two second transmission units 3122, a second motor 3123, and multiple second scrapers 3124.

[0088] Two second rotating shafts 3121 are rotatably mounted at both ends of the inside of the annular trough 31A, serving as the driving shaft and driven shaft of the entire conveying mechanism.

[0089] Two second transmission units 3122 are respectively located on both sides of the inside of the annular trough 31A to achieve synchronous driving on both sides, provide symmetrical driving force and support for the second scraper 3124 on both sides, ensure smooth operation, and prevent deviation or jamming caused by force on one side.

[0090] The second motor 3123 is mounted on and meshes with the two second sprockets 31221, and is connected to the outside of the cooking tank 311 via the second scraper 3124. This facilitates maintenance, heat dissipation, and prevents the humid environment from affecting the motor's lifespan. It is also connected to a second rotating shaft 3121 that is mounted on and meshes with the two second sprockets 31221 and is connected to the second scraper 3124. This shaft provides a power source and transmits power through couplings, reducers, and other transmission components.

[0091] Multiple second scrapers 3124 are disposed on two sleeves and mesh with two second sprockets 31221, and are connected between the second scraper 3124 and the second transmission unit 3122. Their surfaces are in contact with the material, thereby pushing the material in front of them to move along the annular trough 31A.

[0092] Among them, such as Figure 3 As shown, the second transmission unit 3122, which is sleeved and engaged on the two second sprockets 31221 and connected to the second scraper 3124, includes: Two second sprockets 31221 are respectively fixedly mounted on two sleeves and meshed with the two second sprockets 31221, and connected to the second rotating shaft 3121 with the second scraper 3124, for supporting the two ends of the second chain 31222 respectively and driving it to perform cyclic movement; The second chain 31222 is sleeved and engaged on the two second sprockets 31221 and connected to the second scraper 3124, serving as the carrier and traction component of the second scraper 3124.

[0093] The working process of the second scraper conveying mechanism 312 mentioned above is as follows: The second motor 3123 starts, driving the second rotating shaft 3121 connected to it to rotate. The two second sprockets 31221 on the shaft rotate accordingly, and the second chain 31222 meshing with the second sprockets 31221 is driven to start cyclical motion. At the same time, the second scraper 3124 fixed between the two second chains 31222 moves with the chain. After the rice husks fall into the near end of the upper path of the annular trough 31A, the second scraper 3124 pushes the rice husks to the far end in the upper path. After reaching the far end, the rice husks are guided downwards and turned, thus entering the lower path of the annular trough 31A. Then, the second scraper 3124 pushes the rice husks towards the near end in the lower path. After reaching the near end, the second scraper 3124 pushes the rice husks into the discharge channel 31C. After the second scraper 3124 completes the rice husk pushing, it goes around the second sprocket 31221 at the near end with the second chain 31222 and enters the return section. It then returns to the near end of the upper path unloaded and enters the upper path again to start a new round of rice husk pushing.

[0094] The above design of the second scraper conveying mechanism 312 ensures that the two ends of the second scraper 3124 are evenly stressed and operate stably and reliably through the independent second transmission units 3122 on both sides. It is suitable for long-distance conveying and conveying that needs to overcome certain material resistance. Furthermore, by fixing multiple second scrapers 3124 at a certain interval on the second chain 31222, the continuity and efficiency of material conveying are guaranteed.

[0095] In some embodiments, such as Figure 3 , Figure 5 and Figure 6 As shown, it includes: drainage pipe 9, which includes a main pipe 91 and multiple branch pipes 92.

[0096] The main pipe 91 is arranged vertically and is used as the main drainage channel to receive condensate water from each branch pipe 92 and use gravity to discharge the collected condensate water into the workshop drainage ditch. Multiple branch pipes 92 are spaced apart along the length of the main pipe 91 and correspond one-to-one with the cooking zone 31. They are used to collect and drain the condensate generated in the steam chamber 31B of the corresponding cooking zone 31, and ensure that the drainage of each steam chamber 31B does not interfere with each other.

[0097] The bottom of the side wall of the steam chamber 31B is provided with a drain hole 31102. One end of the branch pipe 92 is connected to the main pipe 91, and the other end is connected to the steam chamber 31B of the corresponding cooking zone 31 through the drain hole 31102. This design avoids the accumulation and residue of condensate in the steam chamber 31B and improves the drainage effect.

[0098] The aforementioned drainage pipe 9 effectively solves the problem of steam condensate discharge by using a layered collection and gravity guidance method, ensuring the smooth operation of the cooking process and the safety of the equipment.

[0099] In some embodiments, such as Figure 2 and Figure 6 As shown, the steam pipe 313 has a horizontally arranged, multi-shaped structure, which allows multiple outlet points to be evenly distributed on the internal plane of the steam chamber 31B. This optimizes the coverage and more effectively avoids uneven distribution of steam within the steam chamber 31B.

[0100] The above design improves the steam supply efficiency and uniformity of the cooking zone 31, thereby enhancing the consistency and quality stability of the cooking effect.

[0101] The workflow for this application will be further explained as follows: 1. Feeding: Raw rice husks enter the top steaming zone 31 from the top feed hopper 6; 2. Cooking: The rice husks are pushed forward by the second scraper conveyor mechanism 312 in the annular trough 31A of each cooking zone 31, forming a U-shaped moving path, and are simultaneously heated and humidified by the steam that permeates from the steam chamber 31B below through the steam holes, thereby completing the cooking process. 3. Discharge: After each layer is cooked, the rice husks leave the annular trough 31A in the cooking zone 31 through the discharge channel 31C, and then fall into the next cooking zone 31 or cooling zone 21 through the second discharge port 31101 at the bottom. 4. Cooling: The cooked rice husks fall into the cooling area 21 and are then pushed forward by the first scraper conveyor mechanism 212 in the linear material trough 21A, forming a straight moving path. At the same time, the cold air in the cooling chamber 21B below is provided by the fan 213 and penetrates the rice husk layer through the ventilation holes, taking away heat and moisture. Then the hot and humid air is discharged from the air outlet 21102, thereby achieving cooling and drying. V. Discharge: After each layer is cooled, the rice husks leave through the linear trough 21A in the cooling area 21 of that layer via the discharge channel 31C, and then enter the next cooling area 21 through the first discharge port 21101 at the bottom or are discharged from the equipment through the discharge port 5.

[0102] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A vertical stacked steaming rice bran machine, characterized in that, include: Support frame; The cooling section is located on the support frame and includes at least one layer of cooling areas stacked vertically. The steaming section is located on the cooling section and includes multiple steaming zones arranged vertically and a dehumidification zone located between each two adjacent steaming zones. Each dehumidification zone is connected to the steaming zone immediately below it, and each dehumidification zone has a number of first dehumidification ports on its sidewall. A steam collection hood is located at the top of the uppermost cooking zone, and its top is provided with several second moisture outlets; The discharge port is located on one side of the bottom of the lowest cooling area and is connected to the cooling area of ​​that layer. The feed hopper is located at one end of the top of the steam collection hood and is connected to the topmost cooking zone. The cooling area includes: The cooling box has a first material inlet at one end of its bottom surface, and inside it has a linear material trough with an opening on the top surface, a cooling chamber located below the linear material trough, and a discharge channel connecting the tail end of the linear material trough and the first material inlet. The first scraper conveying mechanism is installed in the linear trough in a cyclical manner; Multiple fans are installed on the outside of the cooling box, and their air outlets are connected to the cooling chamber. The linear material trough is connected to the cooling chamber through multiple ventilation holes, and multiple air outlets are provided on the upper part of the side wall of the linear material trough. The cooking zone includes: The cooking chamber has a second feed inlet at one end of the bottom surface, and inside there is an annular feed trough with an opening on the top surface, a steam chamber located below the annular feed trough, and a feed channel connecting the annular feed trough and the second feed inlet. The second scraper conveying mechanism is installed in the annular trough in a cyclical manner; Multiple steam pipes are installed in the steam chamber, with their steam inlets extending out of the cooking tank, and multiple steam nozzles are provided on the pipes located in the steam chamber. The annular feed trough and the steam chamber are connected by multiple steam holes, and the steam nozzle is located at the bottom of the steam pipeline.

2. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, include: An impeller feeder is installed at the inlet of the feed hopper; An impeller unloader is installed in the material discharge channel of the lowest cooking zone.

3. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, The cooling box has the following between its two inner walls: Ventilation mesh panels, arranged horizontally; The first guide plate is arc-shaped and is located at the end of the ventilation mesh plate away from the discharge channel, and is connected to the adjacent end wall of the cooling box. The second guide plate is arc-shaped and is located on the end wall of the cooling box near the discharge channel; The first discharge plate is located below the ventilation mesh plate. One end of the plate is connected to the lower end of the ventilation mesh plate near the discharge channel, and the other end extends downward and connects to the inner bottom wall of the cooking chamber. The second discharge plate is located below the ventilation mesh plate. One end of the plate is connected to the bottom end of the second guide plate, and the other end extends downward and connects to the inner bottom wall of the cooking chamber. The linear material trough is defined by the upper surface of the ventilation mesh plate, the inner arc surface of the first guide plate, the inner arc surface of the first guide plate, and the corresponding inner sidewall of the cooling box; the cooling chamber is formed by the lower surface of the ventilation mesh plate, the first guide plate, the first discharge plate, the inner bottom wall of the cooling box, and the corresponding inner sidewall; the discharge channel is formed by the first discharge plate, the second discharge plate, and the corresponding inner sidewall of the cooling box.

4. The vertical stacked steaming rice bran machine according to claim 3, characterized in that, The cooling box also has the following between its two inner walls: The first grille is located on the bottom surface of the ventilation mesh plate; The return support plate is arranged laterally in the linear trough to support the upper forward section of the first scraper conveyor mechanism. Multiple first partitions are arranged laterally at intervals within the cooling chamber to divide the cooling chamber into multiple cooling rooms, and each cooling room is equipped with a fan.

5. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, The first scraper conveying mechanism includes: Two first rotating shafts are rotatably installed at both ends of the interior of the linear material trough; Two first transmission units are respectively located on both sides of the interior of the linear material trough; The first motor is installed on the outside of the cooling box and is connected to a first rotating shaft for transmission. Multiple first scrapers are disposed between two first transmission units; Each of the first transmission units includes: Two first sprockets are respectively fixedly mounted on two first rotating shafts; The first chain is fitted onto and engaged with the two first sprockets and connected to the first scraper.

6. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, The inner walls on both sides of the cooking chamber are provided with: The lower layer of wire mesh is arranged horizontally; The upper mesh plate is arranged horizontally and located above the lower mesh plate, and is in contact with the bottom surface of the upper forward section of the second scraper conveying mechanism; The third guide plate is arc-shaped and is located at the end of the lower mesh plate away from the feed hopper, and is connected to the end of the cooking chamber away from the feed hopper; The fourth guide plate, which is arc-shaped, is located on the inner wall of the cooking chamber at the end near the feed hopper; Two end plates are located at both ends of the ventilation mesh plate and extend downward to the inner bottom wall connecting the cooking chamber. The material discharge guide plate is located below the ventilation mesh plate, with one end connected to the bottom end of the fourth guide plate and the other end extending downward and connecting to the inner bottom wall of the cooking chamber. The annular feed trough is formed by the upper surface of the lower mesh plate, the upper mesh plate, the inner arc surface of the third guide plate, the inner arc surface of the fourth guide plate, and the corresponding inner sidewall of the cooking chamber; the steam chamber is formed by the lower surface of the lower mesh plate, two end plates, the inner bottom wall of the cooking chamber, and the corresponding inner sidewall; the material discharge channel is formed by the material discharge guide plate, an end plate near the fourth guide plate, and the corresponding inner sidewall of the cooking chamber.

7. The vertical stacked steaming rice bran machine according to claim 6, characterized in that, The inner walls on both sides of the cooking chamber are provided with: The second grid is disposed on the bottom surface of the lower mesh plate; The third grid is located on the bottom surface of the upper mesh plate; Multiple second partitions are arranged laterally at intervals within the steam chamber to divide the steam chamber into multiple steam compartments, and each steam compartment is equipped with a steam pipeline.

8. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, The second scraper conveying mechanism includes: Two second rotating shafts are rotatably mounted at both ends of the inside of the annular material trough; Two second transmission units are respectively located on both sides of the inside of the annular material trough; The second motor is installed on the outside of the cooking chamber and is connected to a second rotating shaft for transmission. Multiple second scrapers are disposed between the two second transmission units; Each of the second transmission units includes: Two second sprockets are respectively fixedly mounted on two second rotating shafts; The second chain is fitted onto and meshes with the two second sprockets and is connected to the second scraper.

9. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, include: Drainage pipes, including Supervisor, vertical layout; Multiple branch pipes are spaced apart along the length of the main pipe and correspond one-to-one with the cooking zone; The steam chamber has a drain hole at the bottom of its side wall. One end of the branch pipe is connected to the main pipe, and the other end is connected to the steam chamber corresponding to the cooking zone through the drain hole.

10. The vertical stacked steaming rice bran machine according to claim 1, characterized in that, The steam pipeline has a horizontally arranged, convex-shaped structure.

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