Multi-layer automatic control turning plate oven

Abstract

The utility model discloses a kind of multilayer automatic control turning plate baking pool, belong to nut drying technical field, including cabinet, the frame body is equipped in the cabinet, the frame body upper end is connected with turning plate oven, the turning plate oven lower end is communicated with ventilation cloth wind box, ventilation cloth wind box one side is communicated with direct combustion hot blast furnace, ventilation cloth wind box other side is communicated with collecting device, and direct combustion hot blast furnace and collecting device are located in the cabinet outside.The utility model can realize multilayer arrangement, automatic turning plate control, hot air uniform distribution and have the baking pool structure of efficient collection function.

Description

Technical Field

[0001] This utility model belongs to the field of nut drying technology, specifically relating to a multi-layer automatic control flip-plate drying tank. Background Technology

[0002] In existing nut drying processes, single-layer fixed pallet or manually turned roasting tank structures or multi-layer chain plate structures are commonly used. While these drying equipment can basically achieve hot air drying, they have the following shortcomings: With fixed pallet or mesh plate structures, there is a large temperature difference between the upper and lower layers of material during drying. The upper layer is prone to over-drying and charring, while the lower layer suffers from insufficient moisture evaporation, resulting in unstable overall drying quality. Some traditional roasting tanks rely on manual turning to improve uniformity, which is inefficient, labor-intensive, and prone to mold growth or uneven drying if not turned in time. The air distribution system of existing equipment has uneven airflow distribution, resulting in excessively high or low local wind speeds, increasing energy consumption and reducing drying efficiency. Common drying devices are mostly single-layer or few-layer structures, making it difficult to meet the needs of large-scale continuous operation. Furthermore, the lack of an automatically controlled turning mechanism results in insufficient equipment intelligence, making it impossible to flexibly adjust according to the material's drying status.

[0003] A Chinese patent with publication number CN221729678U discloses a multi-layer cashew nut drying tunnel oven, comprising a combustion chamber, a baking oven, a hot air supply duct, a temperature-controlled exhaust duct, a baking conveyor line, a feeding conveyor line, and a discharging box. The combustion chamber is located at the top of the baking oven and is used to burn fuel to generate hot air. The hot air supply duct is connected between the baking oven and the combustion chamber and is used to transport the hot air generated by the combustion chamber into the baking oven. The temperature-controlled exhaust duct is connected to the baking oven and is used to discharge some of the hot air and moisture inside the baking oven. The baking oven is provided with an inlet and an outlet. The baking conveyor line is located inside the baking oven and is used to transport cashews to the baking oven for roasting. The feeding conveyor line is located at one end of the inlet and is used to transport cashews onto the baking conveyor line. The discharging box is located at the outlet.

[0004] In the aforementioned existing technology, hot air is directly introduced into the baking oven, resulting in severe air leakage and an inability to achieve a uniform drying effect. On the other hand, the material is transported layer by layer using a chain conveyor, and the drying temperature cannot be too high, otherwise it will easily lead to inconsistent drying levels on the top and bottom of the material. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a multi-layer automatic control flip-plate baking tank structure that can realize multi-layer arrangement, automatic flip-plate control, uniform distribution of hot air and efficient collection function.

[0006] The technical solution adopted by this utility model is a multi-layer automatic control flip-plate baking tank, including a box body, a frame inside the box body, a flip-plate oven connected to the upper end of the frame body, a ventilation air box body connected to the lower end of the flip-plate oven, a direct-fired hot air furnace connected to one side of the ventilation air box body, and a collection device connected to the other side of the ventilation air box body. The direct-fired hot air furnace and the collection device are located outside the box body.

[0007] The present invention is further characterized in that, The flip oven includes an oven body, inside which multiple flip plates are evenly arranged from top to bottom. Multiple flip plate control mechanisms are provided on both sides of the oven body, and the multiple flip plate control mechanisms are connected to the multiple flip plates.

[0008] The flap includes multiple horizontally arranged air distribution plates, and multiple mesh flaps are connected between the multiple air distribution plates. One end of each of the multiple mesh flaps is connected to the air distribution plate through a rotating shaft, and the rotating shaft is connected to the flap control mechanism.

[0009] The flip-plate control mechanism includes a rectangular track, in which multiple connectors are evenly embedded. The connectors are connected to the rotating shaft. A rotating plate is rotatably connected to one end of the rectangular track. A telescopic device is connected to the upper end of the rotating plate. The telescopic device is connected to the oven body.

[0010] The ventilation cloth box is equipped with a drive chain plate, and an annular air duct is provided below the drive chain plate. The annular air duct is connected to the direct-fired hot air furnace.

[0011] The collection device includes a discharge airlock, the discharge end of which is connected to a unloader, a belt conveyor is installed below the unloader, and the inlet end of the discharge airlock is located obliquely below the drive chain plate.

[0012] The beneficial effects of this utility model are: (1) The multi-layer automatic control flip-plate oven of this utility model is equipped with multiple flip plates inside and driven by a flip plate control mechanism, so that the material can be automatically flipped from the first layer during the drying process. While the material is being dried by airflow and hot air, it is continuously flipped to the lower layer, thereby avoiding uneven heating or local accumulation caused by long-term static material, realizing dynamic drying throughout the process, and greatly improving drying uniformity and penetration efficiency.

[0013] (2) The present invention provides a multi-layer automatic control flip-plate baking tank that combines a ventilated air box with an annular air duct and a direct-fired hot air furnace, and with the flip-plates flipping down layer by layer, so that the hot air can be evenly distributed to each flip-plate position.

[0014] (3) The multi-layer automatic control flip-plate baking tank collection device 6 of this utility model adopts the combination of discharge air closure device and unloader. The material feeding process is controllable and has good sealing performance, avoiding hot air backflow and dust leakage. It is combined with belt conveyor to realize continuous collection and transfer of materials, greatly reducing manual operation and improving the level of production automation. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a multi-layer automatic control flip-plate baking tank according to this utility model; Figure 2 This is a structural diagram of the internal structure of a multi-layer automatic control flip-plate baking tank according to this utility model; Figure 3 This is a structural diagram of an oven body in a multi-layer automatic control flip-plate baking tank according to this utility model; Figure 4 This is a structural diagram of a multi-layer automatic control flip-plate baking tank with ventilation and air collection device according to the present invention. Figure 5 This is a structural diagram of the internal structure of the ventilation and air distribution box in a multi-layer automatic control flip-plate baking tank according to this utility model.

[0016] In the diagram, 1. Box body, 2. Frame body, 3. Tilting oven, 301. Oven body, 302. Tilting plate, 3021. Air distribution plate, 3022. Mesh tilting plate, 3023. Rotating shaft, 303. Tilting plate control mechanism, 3031. Rectangular track, 3032. Connector, 3033. Rotating plate, 3034. Telescopic device, 4. Ventilation air box body, 401. Drive chain plate, 402. Annular air duct, 5. Direct-fired hot air furnace, 6. Collection device, 601. Discharge airlock, 602. Unloader, 603. Belt conveyor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0018] like Figure 1-5As shown, this utility model discloses a multi-layer automatic control flip-plate baking tank, including a box 1 with a hollowed-out top plate for feeding materials and high-temperature gas escaping from the box 1. The box 1 has a stable frame 2 inside, which serves as an internal support skeleton. The upper end of the frame 2 is fixedly connected to a flip-plate oven 3. The flip-plate oven 3 has a multi-layer flip-plate structure inside, which can realize the automatic flipping and layered conveying of materials through the flip-plate control mechanism during the drying process, so that the materials are heated and dried layer by layer from the first layer, ensuring that the drying process is uniform and thorough. The lower end of the flip-type oven 3 is connected to the ventilation air distribution box 4, which serves as an internal airflow distribution channel. One side of the ventilation air distribution box 4 is connected to a direct-fired hot air furnace 5, which provides high-temperature hot air that is directly sent into the air distribution box 4. After being evenly distributed, the air is sent to each flip-type area, achieving a stable and uniform drying airflow supply. The other side of the ventilation air distribution box 4 is connected to a collection device 6, which is used to centrally discharge and collect the dried material. Both the direct-fired hot air furnace 5 and the collection device 6 are located outside the box 1, which facilitates maintenance and operation, reduces the impact of high temperature on the internal mechanical structure of the box, and significantly improves the safety and durability of the device. The flip-plate oven 3 includes an external frame oven body 301, which is constructed entirely of high-temperature resistant steel plate. Multiple flip plates 302 are evenly distributed from top to bottom inside the oven body 301. These flip plates 302 are arranged in layers at equal intervals, forming a stacked material carrying and flipping channel. This allows materials entering the oven body 301 to be distributed sequentially on flip plates 302 at different heights, achieving uniform drying through layer-by-layer heating. The flip plates 302 can be flipped intermittently or continuously as needed, thus preventing uneven heating caused by materials accumulating on a single layer for an extended period. Multiple flip-plate control mechanisms 303 are symmetrically installed on both sides of the oven body 301. The flip-plate control mechanisms 303 are connected to the flip plates 302 and can apply driving force to each flip plate 302 to precisely control its flipping angle and action frequency, thereby realizing the automated operation of material flipping, unloading and layer transfer. The multiple flip-plate control mechanisms 303 are coordinated and controlled according to a unified program to ensure that the material can be heated evenly from top to bottom layer by layer inside the oven body 301, and the heated surface is constantly changed during the flipping process, which improves the overall drying efficiency and uniformity, while significantly reducing the need for manual intervention and ensuring the stability and automation level of the oven during long-term continuous operation.

[0019] The flap 302 includes multiple air distribution plates 3021 arranged in the horizontal direction. The air distribution plates 3021 are evenly distributed in the shape of vertical plates inside the oven body 301. Multiple mesh flaps 3022 are connected between the multiple air distribution plates 3021. The multiple air distribution plates arranged between the mesh flaps 3022 are used to form airflow separation channels, so that the hot air can be distributed in an orderly and even manner, and can avoid blockage when the material is seriously piled up and turned over. One end of each of the multiple mesh flaps 3022 is connected to the air distribution plate 3021 via a rotating shaft 3023. The rotating shaft 3023 is connected to the bottom end of the air distribution plate 3021 and can achieve flexible rotation under the action of external driving force. The other end of the rotating shaft 3023 is connected to the flap control mechanism 303. The flap control mechanism 303 applies intermittent or continuous torque to the rotating shaft 3023 to realize the automatic flipping of the mesh flaps 3022, so that the material carried can be shaken and tilted onto the lower flaps 3022 at regular intervals, and the uniform heating and continuous feeding process is completed layer by layer, thereby constructing a multi-layer circulating drying path that is automatically flipped and conveyed from top to bottom.

[0020] The flip-plate control mechanism 303 includes a rectangular track 3031, which is fixedly installed on both outer walls of the oven body 301. The overall structure is a rectangular closed guide groove, which is used to provide stable guidance and limit for the flipping movement of the flip plate 302. Multiple connectors 3032 are evenly embedded in the interior of the rectangular track 3031 along the length direction. The multiple connectors 3032 are fixedly connected to the rotating shaft 3023 one by one. Each connector 3032 enables the rotating shaft 3023 to achieve precise synchronous transmission within the track, so that the multiple mesh flip plates 3022 can maintain a consistent flipping angle and rhythm under control action, avoiding uneven operation or jamming of the flip plate 302 due to single-point force. One end of the rectangular track 3031 is rotatably connected to the rotating plate 3033 via a pivot. The rotating plate 3033 is located at the outer end of the rectangular track 3031 and serves as the transmission port for the overall driving force. The upper end of the rotating plate 3033 is connected to a telescopic device 3034, which can be a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. It is fixedly installed on the oven body 301. Through the telescopic movement of the telescopic device 3034, the rotating plate 3033 can be driven to swing, and then the power is evenly transmitted to multiple connectors 3032 and the rotating shaft 3023 through the rectangular track 3031, so as to realize the simultaneous flipping or graded action of all flip plates 302. When the telescopic device 3034 extends outward, the rotating plate 3033 drives the rectangular track 3031 to swing outward, thereby causing the flip plate 302 to flip along the rotating axis 3023. The material carried on the mesh flip plate 3022 then automatically falls to the lower flip plate 302, realizing layer-by-layer falling and drying. When the telescopic device 3034 retracts, the rotating plate 3033 drives the rectangular track 3031 back to its original position, and the flip plate 302 returns to its original horizontal state to receive the material falling from the upper layer again. Through this reciprocating flipping action, the material can continuously and automatically complete the process of dispersion, falling and uniform heating between multiple flip plates, which greatly improves the drying efficiency and the uniformity of material heating, while significantly reducing manual intervention and energy consumption.

[0021] The ventilation cloth box 4 is equipped with a drive chain plate 401 inside. The drive chain plate 401 is used to support and transport the falling material, so that the material can be transported in an orderly manner and finally collected in a concentrated manner during the drying process of the multi-layer flip plate 302. The movement of the drive chain plate 401 can drive the material to form a uniform conveying flow line inside the baking tank, avoiding material accumulation or stagnation. Below the drive chain plate 401, there is a corresponding annular air duct 402. The annular air duct 402 is a closed annular pipe structure that is arranged around the bottom of the air distribution box 4. It can evenly distribute the high-temperature hot air from the direct-fired hot air furnace 5 and send it upward into the baking tank, so that the hot air can evenly act on the materials carried in the flip plates 302 at different levels, ensuring that the materials can be heated in all directions during the flip plate flipping and falling process. The annular air duct 402 is connected to the direct-fired hot air furnace 5. The direct-fired hot air furnace 5 serves as the heat energy supply source for the entire device. It can directly and quickly send the high-temperature heat generated by combustion into the annular air duct 402, and then introduce it into the oven body 301 through the air outlet of the air distribution box 4, so as to realize the continuous circulation and stable supply of hot air, ensuring that the temperature distribution in the entire multi-layer flip-plate oven is uniform and the heat utilization rate is high.

[0022] The collection device 6 specifically includes a discharge airlock 601, which is a high-temperature resistant sealed structure. Its internal structure adopts a rotating impeller or a double-gate airlock mechanism, which can prevent hot air backflow while ensuring smooth material discharge and effectively maintain the stability of hot air circulation inside the drying tank. The discharge end of the discharge airlock 601 is connected to the unloader 602, which is used to evenly disperse the dried material and guide it to the downstream conveying stage to avoid concentrated accumulation or blockage. A belt conveyor 603 is installed below the unloader 602. The belt conveyor 603 is used to quickly and continuously transport the dried material to the storage area or subsequent processing stage, thereby realizing the automated discharge and efficient transfer of the drying system. The feed end of the discharge airlock 601 is precisely positioned below the drive chain plate 401, with a reasonable positional design that allows the material to naturally enter the discharge airlock 601 under the action of gravity.

[0023] Working Principle: During operation, the direct-fired hot air furnace 5 is ignited and generates high-temperature heat flow. This heat flow first enters the annular air duct 402 located at the bottom of the ventilation cloth air box 4, and then is evenly distributed into the tilting oven 3 through the ventilation cloth air box 4. This ensures that the materials carried by each layer of tilting plates 302 inside the oven body 301 receive a stable and uniform high-temperature airflow. The materials are first heated and dried on the first layer of tilting plates 302. Subsequently, driven by the tilting control mechanism 303, the mesh tilting plates 3022 are flipped via the rotating shaft 3023, causing some or all of the material to automatically fall onto the lower layer of tilting plates 302. This layer-by-layer flipping and falling process continuously changes the heating surface of the material as it descends, ensuring... To ensure uniform heating and avoid localized over- or under-heating, the material falls layer by layer onto the bottom drive chain plate 401 during the flipping and folding process. The drive chain plate 401 supports and transports the material to the discharge end. The movement of the chain plate 401 ensures uniform material distribution and continuous delivery, preventing accumulation and stagnation. Under the influence of gravity, the falling material enters the discharge airlock 601 located diagonally below the chain plate 401, which prevents hot air backflow and energy loss. Subsequently, the material enters the unloader 602 for uniform dispersion and is finally continuously and rapidly transported to the storage area or subsequent processing stage via the belt conveyor 603, thus achieving fully automated drying and discharge.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-layer automatic control flip-plate baking tank, characterized in that, Includes a box body (1), inside which is a frame (2), the upper end of which is connected to a flip oven (3), the lower end of which is connected to a ventilation cloth box body (4), one side of which is connected to a direct-fired hot air furnace (5), and the other side of which is connected to a collection device (6), the direct-fired hot air furnace (5) and the collection device (6) are located outside the box body (1).

2. The multi-layer automatic control flip-plate baking tank according to claim 1, characterized in that, The flip oven (3) includes an oven body (301), and multiple flip plates (302) are evenly arranged inside the oven body (301) from top to bottom. Multiple flip plate control mechanisms (303) are provided on both sides of the oven body (301), and the multiple flip plate control mechanisms (303) are connected to the multiple flip plates (302).

3. The multi-layer automatic control flip-plate baking tank according to claim 2, characterized in that, The flap (302) includes multiple horizontally arranged air distribution plates (3021), and multiple mesh flaps (3022) are connected between the multiple air distribution plates (3021). One end of each of the multiple mesh flaps (3022) is connected to the air distribution plate (3021) through a rotating shaft (3023), and the rotating shaft (3023) is connected to the flap control mechanism (303).

4. The multi-layer automatic control flip-plate baking tank according to claim 3, characterized in that, The flip-plate control mechanism (303) includes a rectangular track (3031), in which multiple connectors (3032) are evenly embedded. The connectors (3032) are connected to the rotating shaft (3023). A rotating plate (3033) is rotatably connected to a section of the rectangular track (3031). A telescopic device (3034) is connected to the upper end of the rotating plate (3033). The telescopic device (3034) is connected to the oven body (301).

5. A multi-layer automatic control flip-plate baking tank according to claim 4, characterized in that, The ventilation air box (4) is equipped with a drive chain plate (401), and an annular air duct (402) is provided below the drive chain plate (401). The annular air duct (402) is connected to the direct-fired hot air furnace (5).

6. A multi-layer automatic control flip-plate baking tank according to claim 5, characterized in that, The collecting device (6) includes a discharge airlock (601), the discharge end of which is connected to a unloader (602), a belt conveyor (603) is provided below the unloader (602), and the feed end of the discharge airlock (601) is located obliquely below the drive chain plate (401).

Images