A vegetable drying equipment capable of recycling waste heat
By incorporating a mesh cloth and a moving plate inside the drum in the vegetable drying equipment, combined with the cooperation of a drive motor and a linear motor, the problem of uneven heating during the vegetable drying process is solved, achieving uniform heating and efficient drying, thereby improving the processing quality and energy utilization rate of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN SAISHANG SUNSHINE AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
AI Technical Summary
Existing vegetable drying equipment cannot turn the vegetables over during the drying process, resulting in uneven heating and affecting the drying quality.
A vegetable drying device with waste heat recovery capability was designed. The device uses a mesh cloth and a moving plate inside the drum. The vegetables are turned and tilted by a drive motor and a linear motor. The waste heat is recovered and heated by an electric heating device and a circulation pipe.
This method achieves uniform heating of vegetables, improves drying quality and efficiency, reduces energy consumption, and enhances the practicality of the equipment.
Smart Images

Figure CN224398176U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vegetable drying equipment, and in particular, it is a vegetable drying equipment that can recover waste heat. Background Technology
[0002] Vegetable drying is the process of removing internal moisture from vegetables to extend their shelf life. Existing waste heat recovery devices for vegetable drying can only recycle the hot air generated during drying; they cannot turn the vegetables over, resulting in uneven heating and poor drying efficiency.
[0003] A search revealed a Chinese patent document (authorization announcement number CN222635060U) for a vegetable drying device with waste heat recovery. The device includes a drying chamber with a mounting ring and a cover. Inside the drying chamber is a dryer with drying tubes arranged in a circular array at the output end of the dryer. Each drying tube has drying holes. The mounting ring has mounting holes, and a drying ring rotates inside these holes. The inner surface of the drying ring has a drying mesh, and the outer surface has a circular array of heat-conducting plates. The bottom of the drying chamber has a drain pipe, and the top of the cover has an exhaust pipe. A recovery cover is mounted on the mounting ring, with the heat-conducting plates located inside. The recovery cover has an inlet pipe and an outlet pipe. This device solves the problem of existing equipment being unable to utilize waste heat for auxiliary heating. However, it still cannot rotate the processed vegetables during use, resulting in uneven heating and reduced drying quality. Utility Model Content
[0004] The purpose of this invention is to provide a vegetable drying device that can recover waste heat, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vegetable drying device capable of recovering waste heat, comprising a box for connection, a cover plate for opening and closing hinged to the top of the box, the side wall of the cover plate being connected to the side wall of the box via a locking buckle, a cylindrical barrel rotatably connected to the inner wall of the box, the side wall of the barrel being composed of multiple layers of mesh fabric, the two ends of the mesh fabric being fixed to circular plates connected to the end of the barrel, a universal joint being fixedly connected to one end of the barrel, the universal joint being connected to the output shaft of a drive motor that provides power through the side wall of the box, the fixed part of the drive motor being screwed to the side wall of the box, and two symmetrically arranged movable plates being provided on the side wall of the barrel, the movable plates being movably connected to the side wall of the barrel.
[0006] As a preferred embodiment, the side wall of the enclosure is welded with an electric heating device capable of heating the air, and the side wall of the electric heating device is provided with an air inlet for easy air input.
[0007] As a preferred embodiment, a negative pressure fan is installed on the side wall of the electric heating device, and the output end of the negative pressure fan is connected to a hollow output pipe, with the side wall of the output pipe welded to the side wall of the housing.
[0008] As a preferred embodiment, the inner bottom wall of the box is provided with an inclined material gathering trough, and the two sides of the material gathering trough are provided with a number of equally spaced air outlets connected to the inner wall of the box, and the ends of the air outlets are connected to the output pipe.
[0009] As a preferred embodiment, a semi-circular fixed box is welded to the bottom of the box body for easy connection. The top of the fixed box is connected to the bottom of the material collection trough. An auger that facilitates vegetable output is installed inside the fixed box body.
[0010] As a preferred embodiment, a hollow circulation pipe is welded to the outside of the housing near the cover plate. The side wall of the circulation pipe is connected to a fan installed on the inner wall of the housing, and the other end of the circulation pipe is connected to the top of the electric heating device through a connecting pipe.
[0011] As a preferred embodiment, a high-temperature resistant linear motor is installed on the inner wall of the box. The moving part of the linear motor is welded with a sliding plate that is slidably connected to the inner wall of the box. The side wall of the sliding plate is rotatably connected to the end of the barrel through a rotating shaft.
[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:
[0013] This waste heat recovery vegetable drying equipment has a barrel rotatably connected to the inner wall of the housing. The side wall of the barrel is equipped with symmetrical movable plates, which are movably connected to the barrel via connectors. One end of the barrel is connected to the output shaft of the drive motor via a universal joint, and the other end of the barrel is connected to a sliding plate, which is connected to the moving part of a linear motor. This allows for control of the rotation of the vegetables inside the barrel, completing the comprehensive processing of the vegetables during drying. It also allows the barrel to be tilted inside the housing through the cooperation of the universal joint and the linear motor, accelerating the discharge of the processed vegetables from the barrel and improving the processing quality and efficiency of the device.
[0014] This waste heat recovery vegetable drying equipment, with its fan and circulation pipe, can recover the air that overflows at the top of the chamber and reheat it through an electric heating device to dry the vegetables. With the help of the material gathering trough on the bottom wall of the chamber and the air outlet on the inner wall of the chamber parallel to the material gathering trough, the material gathering effect of the material gathering trough on the vegetables can be accelerated, improving the practicality of the device.
[0015] With the connection between the fixed box and the bottom of the box, the auger installed inside the fixed box can transport the vegetables gathered at the bottom of the material collection trough, complete the discharge of the vegetables, facilitate the continuous operation of the device and make it easy to operate.
[0016] This device solves the problem that existing equipment cannot turn the dried vegetables over, making the vegetables dry more evenly and improving the processing quality of the device. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the structure of a vegetable drying device that can recover waste heat.
[0019] Figure 2 This is a structural schematic diagram of the box body from another perspective of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of the barrel body of this utility model;
[0021] Figure 4 For practical purposes Figure 3 Half section view in the middle BB direction;
[0022] Figure 5 For practical purposes Figure 3 Half-section view along the AA direction.
[0023] Explanation of reference numerals in the attached figures:
[0024] In the diagram: 1. Box body; 2. Output pipe; 3. Circulation pipe; 4. Electric heating device; 5. Cover plate; 6. Drive motor; 7. Hinge; 8. Lock; 9. Barrel body; 10. Moving plate; 11. Slide plate; 12. Linear motor; 13. Fixed box; 14. Air outlet; 15. Material gathering trough; 16. Screw conveyor. Detailed Implementation
[0025] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0026] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0027] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.
[0028] A vegetable drying device that can recover waste heat, such as Figures 1 to 5 As shown, since the existing structure uses a starting blow to flip the vegetables, the existing equipment can only flip light and small vegetable fragments, and cannot provide rotational power for whole vegetables with greater weight. This application mainly solves the problem of rotating heavier vegetables.
[0029] include:
[0030] The box 1 is used for connection. The top of the box 1 is hinged to a cover plate 5 for opening and closing via a hinge 7. In order to ensure the sealing of the overall structure of the device, a sealing ring is provided at the bottom of the cover plate 5 and a groove is provided at the top of the box 1. The groove is connected to the sealing ring to reduce the leakage of hot air and improve the energy utilization rate.
[0031] The side wall of the cover plate 5 is connected to the side wall of the box body 1 by the provided latch 8. Under the action of the hinge 7 and the latch 8, the cover plate 5 can be easily connected to the box body 1, making it easy to add vegetables and use the device.
[0032] A cylindrical barrel 9 is rotatably connected to the inner wall of the box 1. The side wall of the barrel 9 is composed of multiple layers of mesh fabric. The two ends of the mesh fabric are fixed to the circular plates connected to the ends of the barrel 9. The mesh fabric allows the hot air entering the box 1 to fully contact the vegetables inside the barrel 9, increasing the contact area and improving the drying efficiency of the vegetables.
[0033] A universal joint is fixedly connected to one end of the barrel 9. The universal joint allows for small-angle adjustments within a certain range. The universal joint is connected to the output shaft of the drive motor 6 that provides power through the side wall of the box 1. The fixed part of the drive motor 6 is connected to the side wall of the box 1 with screws. The output shaft of the drive motor 6 is controlled to rotate, causing the connected barrel 9 to rotate inside the box 1. This rotation allows the vegetables placed inside the barrel 9 to come into full contact with the hot air, accelerating the drying process.
[0034] A high-temperature resistant linear motor 12 is installed on one side of the inner wall of the box 1. The moving part of the linear motor 12 is connected to a sliding plate 11. The side wall of the sliding plate 11 is rotatably connected to the end of the barrel 9. By controlling the movement of the moving part of the linear motor 12, the barrel 9 is tilted. With the cooperation of the universal joint, the stability of the barrel 9 can be ensured. Thus, when the dried vegetables are taken out of the barrel 9, the discharge speed can be accelerated by controlling the tilt of the barrel 9.
[0035] The side wall of the barrel 9 is provided with two symmetrically arranged movable plates 10. The movable plates 10 are movably connected to the side wall of the barrel 9. The side wall of one movable plate 10 is movably connected to the barrel 9 through a fixing device, and the other movable plate 10 is operated by an electric control device, such as an electric push rod. Under the electric push rod and its associated structure, the associated structure adopts an existing mature structure that can automatically open and close the movable plate 10. After the vegetables are dried, the movable plate 10 located at the bottom of the box 1 opens and, in conjunction with the left and right rotation and swing of the barrel 9, completes the discharge.
[0036] To ensure that the moving plate 10 is always located at the top and bottom of the box 1 when the barrel 9 rotates, a geared motor and its matching structure are installed at the end of the barrel 9. Under the action of the controller, the position of the moving plate 10 can always be kept fixed.
[0037] An inclined material gathering trough 15 is provided at the bottom of the inner side of the box 1. The material gathering trough 15 can accelerate the rapid gathering of discharged vegetables. For rapid discharge, a fixed box 13 is provided inside the box 1. The top of the fixed box 13 is connected to the bottom of the box 1. An auger 16 is installed inside the fixed box 13. The auger 16 can further accelerate the discharge of vegetables. A through-type discharge port with a buckle valve is provided on one side of the auger 16 for easy discharge.
[0038] A number of equally spaced air vents 14 are provided on the inner wall of the box 1. The air vents 14 are arranged parallel to the material gathering trough 15. The arrangement of the air vents 14 can not only allow hot air to heat the vegetables inside the box 9 from bottom to top, but also provide power for the vegetables gathering at the bottom of the material gathering trough 15, further accelerating the gathering speed.
[0039] The air outlet 14 is connected to the hollow output pipe 2 fixed to the side wall of the box 1. The side wall of the output pipe 2 is connected to the side wall of the electric heating device 4. A negative pressure fan is provided at the connection to accelerate the output speed of hot air. The side wall of the electric heating device 4 is welded to the side wall of the box 1. An air inlet with a filter screen is provided on the top of the electric heating device 4 to prevent dusty air from directly entering the interior of the electric heating device 4 and improve the processing quality of vegetables.
[0040] The circulation pipe 3 is installed on the top of the electric heating device 4. The side wall of the circulation pipe 3 is also welded to the side wall of the box 1. At the connection between the circulation pipe 3 and the box 1, a fan is installed embedded in the inner wall of the box 1. The fan can collect the air containing residual heat inside the box 1. Under the action of the circulation pipe 3, the air containing residual heat can be transported to the inside of the electric heating device 4 to heat the air and reduce energy consumption.
[0041] The electric heating device 4, drive motor 6, linear motor 12, negative pressure fan and blower are all conventional instruments. Their working principles, dimensions and models are not related to the function of this application, so they will not be described in detail. Since the above equipment is in a high-temperature environment for a long time, it is subjected to high-temperature resistance treatment and is regularly inspected and replaced. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. In order to facilitate the inspection, maintenance and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function and batch. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this utility model.
[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.
[0043] Working principle
[0044] When using this waste heat-recovering vegetable drying equipment, the vegetables to be processed are placed into the inside of the barrel 9 by opening the cover plate 5 and the moving plate 10, closing the cover plate 5 and the moving plate 10, and controlling the output shaft of the drive motor 6 to rotate, so that the barrel 9 rotates. During this process, the movement of the moving part of the high-temperature resistant linear motor 12 can be controlled to make it sway slightly with the cooperation of the universal joint, thus completing the flipping of the vegetables.
[0045] At this time, the air is heated by the electric heating device 4, and the hot air is introduced into the interior of the box 1 through the air outlet 14 under the action of the output pipe 2, so as to heat the vegetables inside the barrel 9 and dry the vegetables.
[0046] Finally, through the cooperation of the geared motor and the drive motor 6, the barrel 9 is stopped, the auger 16 is controlled to rotate, the movable plate 10 located at the bottom of the barrel 9 is opened, the vegetables are output, and the discharge is completed under the action of the auger 16.
[0047] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vegetable drying apparatus with recoverable waste heat, comprising a box (1) for connection, the top of the box (1) is hinged with a cover plate (5) for opening and closing through a hinge (7), the side wall of the cover plate (5) is connected with the side wall of the box (1) through the lock catch (8) arranged, characterized in that: The inner wall of the box (1) is rotatably connected to a cylindrical barrel (9). The side wall of the barrel (9) is composed of multiple layers of mesh fabric. The two ends of the mesh fabric are fixed to the circular plates connected to the ends of the barrel (9). One end of the barrel (9) is fixedly connected to a universal joint. The universal joint is connected to the output shaft of the drive motor (6) that provides power through the side wall of the box (1). The fixed part of the drive motor (6) is connected to the side wall of the box (1) by screws. The side wall of the barrel (9) is provided with two symmetrically arranged movable plates (10). The movable plates (10) are movably connected to the side wall of the barrel (9).
2. A vegetable drying apparatus with recoverable waste heat as claimed in claim 1 wherein: The side wall of the box (1) is welded with an electric heating device (4) that can heat the air. The side wall of the electric heating device (4) is provided with an air inlet for easy air input.
3. A vegetable drying apparatus of claim 2, wherein: The side wall of the electric heating device (4) is equipped with a negative pressure fan, and the output end of the negative pressure fan is connected to a hollow output pipe (2). The side wall of the output pipe (2) is welded to the side wall of the box (1).
4. A vegetable drying apparatus of claim 3, wherein: The inner bottom wall of the box (1) is provided with an inclined material collection trough (15), and the two sides of the material collection trough (15) are provided with a number of equally spaced air outlets (14) connected to the inner wall of the box (1). The end of the air outlet (14) is connected to the output pipe (2).
5. A vegetable drying apparatus of claim 4, wherein: The bottom of the box (1) is welded with a semi-circular arc-shaped fixed box (13) for easy connection. The top of the fixed box (13) is connected to the bottom of the material trough (15). The fixed box (13) is located inside the box (1) and is equipped with an auger (16) that facilitates vegetable output.
6. A vegetable drying apparatus of claim 5, wherein: The outer side of the box (1) near the cover plate (5) is also welded with a hollow circulation pipe (3). The side wall of the circulation pipe (3) is connected to the fan installed on the inner wall of the box (1), and the other end of the circulation pipe (3) is connected to the top of the electric heating device (4) through a connecting pipe.
7. A vegetable drying apparatus of claim 6, wherein: The inner wall of the box (1) is equipped with a high-temperature resistant linear motor (12). The moving part of the linear motor (12) is welded with a sliding plate (11) that is slidably connected to the inner wall of the box (1). The side wall of the sliding plate (11) is rotatably connected to the end of the barrel (9) through a rotating shaft.