Rotary drum type corn kernel rapid dehydration device

Abstract

The invention discloses a drum type corn kernel rapid dehydration device which comprises a first support, a second support, a drum, a first motor and a second motor, the first support is arranged at one end of the drum in a supporting mode, the second support is arranged at the other end of the drum in a supporting mode, and the first motor is arranged on the first support and is in transmission connection with the drum. The second motor is arranged on the second support and is in transmission connection with the rotary drum, a plurality of heating plates are arranged on the inner wall of the rotary drum at intervals in the axial direction, a supporting disc is arranged on the first support, one end of the rotary drum is in sliding connection with the supporting disc, and a first conducting ring and a second conducting ring are further arranged in the supporting disc. The resistance plate is in sliding connection with the first conducting ring and the second conducting ring through the first conducting column and the second conducting column respectively. The first motor and the second motor drive the rotary drum to turn over and swing, and the interior of the rotary drum is heated through the electric heating plate, so that corn kernels can be uniformly heated and dried, the drying time is effectively shortened, and the drying and dewatering efficiency of the corn kernels is improved.

Description

Technical Field

[0001] This invention relates to the field of corn dehydration technology, and in particular to a rotary drum-type rapid corn kernel dehydration device. Background Technology

[0002] After harvesting and threshing, corn kernels are approximately 1±0.2 cm in length and 0.8±0.2 cm in width, with a high moisture content (approximately 25%-30%). At this moisture content, the kernels exhibit strong respiration, easily generating heat and raising the temperature, creating favorable conditions for microbial growth. This leads to mold and spoilage during storage, shortening the storage time. Therefore, corn kernels need to be dehydrated before storage to reduce the moisture content to below 14%, thereby extending the storage life.

[0003] Currently, the main methods for dehydrating corn kernels are as follows: 1. Natural dehydration: This includes "standing on stalks to dry" (allowing corn to air dry naturally on the stalks after maturity without immediate harvesting) and "off-field drying" (spreading the ears or kernels out to dry in a drying yard after harvesting). These two methods rely entirely on natural wind and sunshine to evaporate moisture, which is the lowest cost, but also the least efficient. They usually take several days or even weeks and are completely dependent on natural conditions. Once there are consecutive rainy days, these two methods are not feasible at all.

[0004] II. Chemical ripening and dehydration: In the later stages of corn growth, a special dehydrating agent (ripening agent) is sprayed on the leaves. By regulating the hormone levels in the plant, the ripening process is accelerated, causing the kernels to metabolize and lose water more quickly, thus achieving "accelerated natural dehydration". However, this is, after all, an unnatural and forced physiological intervention method, which has disadvantages and risks such as high operational technicality, unstable effects, and potential impacts on quality and the environment.

[0005] III. Mechanical Drying and Dehydration: This includes hot air drying, microwave drying, or a combination of both. It utilizes heat energy to forcibly remove moisture, offering the highest efficiency and being unaffected by weather conditions. This is currently a widely adopted technology. For example, patent CN203704572U discloses a non-destructive corn kernel drying device, including a furnace body, heating chamber, heating pipes, screen, insulation layer, steam outlet, and drain outlet. During heating, corn is placed on the screen, and high-temperature steam is introduced into the heating pipes. The heat generated by the steam dries the corn. Furthermore, a vibrator is installed on the screen, causing it to vibrate, which in turn causes the corn on the screen to vibrate, resulting in more uniform heating.

[0006] Although the device can dry corn kernels and maximize drying efficiency with the help of a vibrator, the corn kernels are always on the screen and cannot move freely and fully. Furthermore, the screen area is limited, which means that the number of corn kernels that can be dried each time is also limited, requiring frequent loading and unloading. If the number of corn kernels is forcibly increased, some of the corn kernels will pile up and cover each other, preventing them from fully contacting the hot air and thus affecting the drying and dehydration efficiency.

[0007] In conclusion, existing mechanical drying and dehydration methods still need improvement. Summary of the Invention

[0008] The purpose of this invention is to provide a rotary drum-type rapid dehydration device for corn kernels to solve the problem of low drying efficiency in existing drying devices.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A rotary drum-type rapid dehydration device for corn kernels includes a first support, a second support, a rotary drum, a first motor, and a second motor. The first support is supported at one end of the rotary drum, and the second support is supported at the other end of the rotary drum. The first motor is mounted on the first support and is connected to the rotary drum via a first transmission assembly. The second motor is mounted on the second support and is connected to the rotary drum via a second transmission assembly. Multiple heating plates are spaced axially along the inner wall of the rotary drum. Each heating plate contains a resistance wire. A support plate is mounted on the first support. One end of the rotary drum is slidably connected to the support plate. The support plate also contains a first conductive ring and a second conductive ring. The two ends of the resistance wire are slidably connected to the first conductive ring and the second conductive ring via first conductive posts and second conductive posts, respectively. An insulating pad is provided between the first conductive ring and the second conductive ring.

[0010] Furthermore, the first transmission assembly includes a swing frame and rollers. The bottom of the swing frame is rotatably mounted on the top of the first support via a pin and is located on both sides of the rotating drum. The rollers are rotatably mounted on the swing frame. The outer wall of the rotating drum is provided with a first annular track. The rollers can roll along the first annular track. The first motor is connected to one of the rollers via a transmission.

[0011] Furthermore, the width of the first annular track is matched with that of the roller.

[0012] Furthermore, the second transmission assembly includes a lifting frame, a support arm, a swivel ball, and an eccentric wheel. The lifting frame includes a horizontally arranged crossbeam and vertically arranged longitudinal beams at both ends of the crossbeam. The second support has a sliding groove inside, and the longitudinal beam is slidably arranged in the sliding groove. The support arm is inclinedly arranged on the top of the longitudinal beams on both sides. The swivel ball is arranged at the end of the support arm. The outer wall of the rotating drum has a second annular track, and the swivel ball can roll along the second annular track. A fixed beam is provided between the second supports. The second motor is arranged on the fixed beam and is connected to the eccentric wheel for transmission. An arc-shaped transmission block is provided at the bottom of the crossbeam, and the eccentric wheel is connected to the arc-shaped transmission block for transmission.

[0013] Furthermore, the width of the second annular track is greater than the diameter of the omnidirectional ball.

[0014] Furthermore, the bottom of the longitudinal beam is provided with a limiting seat, the shape and size of which match the slide groove, and the top of the slide groove is provided with a limiting block, the inner contour shape and size of which match the outer contour shape and size of the longitudinal beam.

[0015] Furthermore, the support plate is provided with a first slip ring and a second slip ring inside. The first slip ring is disposed between the inner wall of the support plate and the outer wall of the rotating cylinder, and the second slip ring is disposed on the inner side of the inner wall of the rotating cylinder.

[0016] Furthermore, the support plate is a closed-end disc structure, and the end of the rotating drum adjacent to the second support is an open structure. The open end is provided with a conical feed cylinder, and the feed end of the conical feed cylinder is provided with a hopper or end cover.

[0017] Furthermore, the inner wall of the rotating cylinder is provided with multiple raised ribs along the axial direction.

[0018] Furthermore, the outer wall of the rotating drum is provided with several ventilation holes, the diameter of which is 0.3-0.5cm.

[0019] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a first motor to drive the rotating drum to rotate, a second motor to drive the rotating drum to tumble, and an electric heating plate to heat the inside of the rotating drum. This allows the corn kernels to be heated and dried during the continuous tumbling process, enabling the corn kernels to come into more full contact with the hot air, thereby effectively shortening the drying time and improving the drying and dehydration efficiency of the corn kernels. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the fit between the conical feed cylinder and the hopper in this invention; Figure 3 This is a schematic diagram showing the fit between the conical feed cylinder and the end cap in this invention; Figure 4 This is a cross-sectional view of the end face structure of the present invention; Figure 5 for Figure 1 A partial structural cross-sectional view at point A in the middle.

[0022] Figure label: 10-First support, 20-Second support, 21-Slide groove, 22-Limiting block, 23-Fixed beam, 30-Rotating drum, 31-Ventilation hole, 32-First annular track, 33-Second annular track, 34-Rib, 40-First motor, 50-Second motor, 60-First transmission assembly, 61-Swing frame, 62-Roller, 63-Pin shaft, 70-Second transmission assembly, 71-Lifting frame, 711-Crossbeam, 712- Longitudinal beam, 713-Limit seat, 72-Support arm, 73-Universal ball, 74-Eccentric wheel, 75-Arc-shaped transmission block, 80-Support plate, 81-First conductive ring, 82-Second conductive ring, 83-Insulating pad, 84-First slip ring, 85-Second slip ring, 90-Conical feed cylinder, 100-Hopper, 110-End cover, 120-Heating plate, 121-Resistance wire, 122-First conductive post, 123-Second conductive post. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0026] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figure 1 As shown, the rotary corn kernel rapid dehydration device in this embodiment includes a first support 10, a second support 20, a rotary drum 30, a first motor 40 and a second motor 50. The first support 10 is supported at one end of the rotary drum 30, and the second support 20 is supported at the other end of the rotary drum 30. The rotary drum 30 is laterally supported by the cooperation of the first support 10 and the second support 20.

[0028] The first motor 40 is mounted on the first support 10 and is connected to the rotating drum 30 via the first transmission assembly 60. The second motor 50 is mounted on the second support 20 and is connected to the rotating drum 30 via the second transmission assembly 70. Both the first motor 40 and the second motor 50 are geared motors commonly used in the art.

[0029] The outer wall of the rotating drum 30 is provided with several ventilation holes 31, the diameter of which is 0.3-0.5cm. On the one hand, the heat and moisture inside the rotating drum 30 during the drying process can be dissipated, and on the other hand, the fine fragments in the corn material can fall out through the ventilation holes 31.

[0030] A support plate 80 is fixedly mounted on the first bracket 10. One end of the rotating drum 30 is slidably connected to the support plate 80. The support plate 80 is a disc-shaped structure with a closed end face. The end of the rotating drum 30 adjacent to the second bracket 20 is an open structure. A conical feed cylinder 90 is provided at the open end.

[0031] like Figure 2-3As shown, the feed end of the conical feed cylinder 90 is equipped with a hopper 100 or an end cap 110. When it is necessary to add corn kernels into the rotating drum 30, the hopper 100 can be inserted into the feed end of the conical feed cylinder 90, and corn kernels can be added through the hopper 100. During operation, the hopper 100 can be removed, and the end cap 110 can be installed on the feed end of the conical feed cylinder 90. The end cap 110 can be connected to the conical feed cylinder 90 by thread or snap-fit.

[0032] The first transmission assembly 60 includes a swing frame 61 and a roller 62. The bottom of the swing frame 61 is rotatably mounted on the top of the first support 10 via a pin 63 and is located on both sides of the rotating drum 30. The roller 62 is rotatably mounted on the swing frame 61. The outer wall of the rotating drum 30 is provided with a first annular track 32. The width of the first annular track 32 matches that of the roller 62, so that the roller 62 can roll along the first annular track 32 and play a limiting role to prevent the roller 62 from coming off the first annular track 32. The first motor 40 is connected to one of the rollers 62 so as to drive the rotating drum 30 to rotate through the roller 62.

[0033] To increase the friction between the roller 62 and the first annular track 32, they can be made of materials with high friction, such as rubber or silicone, or metal materials with roughened surfaces. Alternatively, a gear-and-gear meshing transmission method can be used.

[0034] Combination Figure 4 As shown, the second transmission assembly 70 includes a lifting frame 71, a support arm 72, a universal ball 73, and an eccentric wheel 74. The lifting frame 71 includes a horizontally arranged crossbeam 711 and vertically arranged longitudinal beams 712 at both ends of the crossbeam 711. The second support 20 has a sliding groove 21 inside, and the longitudinal beams 712 are slidably arranged in the sliding groove 21. The bottom of the longitudinal beams 712 is provided with a limiting seat 713, the shape and size of which match the sliding groove 21. The top of the sliding groove 21 is provided with a limiting block 22, the internal contour shape and size of which match the external contour shape and size of the longitudinal beams 712, thereby preventing the longitudinal beams 712 from disengaging from the sliding groove 21 during vertical movement.

[0035] The support arm 72 is inclinedly set on the top of the longitudinal beams 712 on both sides, and the universal ball 73 is set at the end of the support arm 72. The outer wall of the rotating drum 30 is provided with a second annular track 33, and the universal ball 73 can roll along the second annular track 33. The width of the second annular track 33 is greater than the diameter of the universal ball 73 so that the universal ball 73 has enough room to move during the rotation of the rotating drum 30.

[0036] A fixed beam 23 is provided between the second supports 20 on both sides. The second motor 50 is mounted on the fixed beam 23 and is connected to the eccentric wheel 74 for transmission. An arc-shaped transmission block 75 is provided at the bottom of the crossbeam 711, and the eccentric wheel 74 is connected to the arc-shaped transmission block 75 for transmission. The eccentric wheel 74 and the arc-shaped transmission block 75 can be made of wear-resistant and smooth materials, such as stainless steel or polytetrafluoroethylene, and can be used with lubricating oil if necessary.

[0037] The second motor 50 drives the eccentric wheel 74 to rotate, and further drives the lifting frame 71 to move up and down. The universal ball 73 will support the rotating drum 30 to move up and down, so that the other end of the rotating drum 30 rotates around the pin 63, thereby causing the rotating drum 30 to swing up and down axially.

[0038] Multiple heating plates 120 are spaced axially along the inner wall of the rotating drum 30. Each heating plate 120 contains a resistance wire 121 wound in a continuous S-shape inside. Each resistance wire 121 has a first conductive post 122 and a second conductive post 123 at its two ends. When energized, the resistance wire 121 generates heat, creating a high-temperature environment inside the rotating drum 30 to heat and dry the corn kernels. The operating temperature of the resistance wire 121 can be set between 50-60℃ to prevent excessive temperature from causing cracking, charring, or nutrient loss in the corn kernels.

[0039] The inner wall of the rotating drum 30 is provided with multiple convex ribs 34 along the axial direction, which serves to turn the corn kernels.

[0040] Combination Figure 5 As shown, the support disk 80 has a first conductive ring 81 and a second conductive ring 82 inside. A first conductive post 122 and a second conductive post 123 are slidably connected to the first conductive ring 81 and the second conductive ring 82, respectively. An insulating pad 83 is provided between the first conductive ring 81 and the second conductive ring 82. An insulating layer is also provided between the first conductive ring 81, the second conductive ring 82 and the inner wall of the support disk 80 to prevent short circuit between the first conductive ring 81 and the second conductive ring 82. The first conductive ring 81 and the second conductive ring 82 are respectively connected to the positive and negative terminals of a power supply to power the resistance wire 121.

[0041] The support plate 80 is also equipped with a first slip ring 84 and a second slip ring 85. The first slip ring 84 is located between the inner wall of the support plate 80 and the outer wall of the rotating cylinder 30, and the second slip ring 85 is located on the inner side of the inner wall of the rotating cylinder 30. The function of the first slip ring 84 and the second slip ring 85 is to support and limit the rotation of the rotating cylinder 30 and assist its rotation. Therefore, the first slip ring 84 and the second slip ring 85 can be made of wear-resistant and smooth materials, such as stainless steel or polytetrafluoroethylene. If necessary, they can be used with lubricating oil, or they can adopt structures such as needle roller bearings.

[0042] When using this invention, an appropriate amount of corn kernels are added into the rotating drum 30 through the hopper 100. After the addition is completed, the hopper 100 is removed and the upper cover 110 is installed.

[0043] Then, the first motor 40 and the second motor 50 are started, driving the rotating drum 30 to rotate and swing simultaneously. The electric heating plate 120 heats the inside of the rotating drum 30, so that the corn kernels are heated and dried during the continuous tumbling process. This allows the corn kernels to come into more full contact with the hot air, and the hot air carries the moisture out through the ventilation hole 31, thereby effectively shortening the drying time and improving the drying and dehydration efficiency of the corn kernels.

[0044] After dehydration, the second motor 50 drives the near end of the eccentric wheel 74 to contact the arc-shaped transmission block 75. At this time, the feed end of the rotating drum 30 is at its lowest point, and the corn kernels in the rotating drum 30 are concentrated on one side of the conical feed cylinder 90, making it easier to remove the corn kernels.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by the present invention.

Claims

1. A rotating drum type corn kernel rapid dewatering device, characterized by: The application relates to a rotary dryer, which comprises a first support, a second support, a rotary drum, a first motor and a second motor, the first support supports a rotary drum arranged at one end of the rotary drum, the second support supports the rotary drum arranged at the other end of the rotary drum, the first motor is arranged on the first support and is in transmission connection with the rotary drum through a first transmission assembly, the second motor is arranged on the second support and is in transmission connection with the rotary drum through a second transmission assembly, a plurality of heating plates are arranged on the inner wall of the rotary drum in the axial direction, an electric heating wire is arranged in the electric heating plate, a supporting disc is arranged on the first support, one end of the rotary drum is in sliding connection with the supporting disc, a first electrically-conductive ring and a second electrically-conductive ring are further arranged in the supporting disc, the two ends of the electric heating wire are in sliding connection with the first electrically-conductive ring and the second electrically-conductive ring through a first electrically-conductive column and a second electrically-conductive column, and an insulating pad is arranged between the first electrically-conductive ring and the second electrically-conductive ring.

2. The accelerated dehydration of maize kernels in a drum according to claim 1, characterized in that: The first transmission assembly comprises a swing frame and rollers, the swing frame is rotatably arranged on the top of the first support through a pin shaft and is located at the two sides of the rotary drum, the rollers are rotatably arranged on the swing frame, the outer wall of the rotary drum is provided with a first annular track, and the rollers can roll along the first annular track, and the first motor is in transmission connection with one of the rollers.

3. The accelerated dehydration of maize kernels in a rotating drum according to claim 2, characterized in that: The width of the first annular track matches the width of the roller.

4. The accelerated dehydration of maize kernels in a drum apparatus according to claim 1, characterized in that: The second transmission assembly comprises a lifting frame, supporting arms, universal balls and eccentric wheels, the lifting frame comprises a horizontally-arranged cross beam and vertically-arranged longitudinal beams arranged at the two ends of the cross beam, the second support is internally provided with a sliding groove, the longitudinal beams are slidingly arranged in the sliding groove, the supporting arms are obliquely arranged on the top of the longitudinal beams at the two sides, the universal balls are arranged at the ends of the supporting arms, the outer wall of the rotary drum is provided with a second annular track, the universal balls can roll along the second annular track, a fixed beam is arranged between the second supports, the second motor is arranged on the fixed beam and is in transmission connection with the eccentric wheels, and the bottom of the cross beam is provided with an arc-shaped transmission block, the eccentric wheels are in transmission connection with the arc-shaped transmission block.

5. The accelerated dehydration of maize kernels in a drum apparatus according to claim 4, characterized in that: The width of the second annular track is greater than the diameter of the universal ball.

6. The accelerated dehydration of maize kernels in a drum apparatus according to claim 4, characterized in that: The bottom of the longitudinal beam is provided with a limiting seat, the shape and size of the limiting seat match those of the sliding groove, the top of the sliding groove is provided with a limiting block, and the internal profile shape and size of the limiting block match the external profile shape and size of the longitudinal beam.

7. The accelerated dehydration of corn kernels apparatus according to claim 1, characterized in that: The supporting disc is internally provided with a first sliding ring and a second sliding ring, the first sliding ring is arranged between the inner wall of the supporting disc and the outer wall of the rotary drum, and the second sliding ring is arranged on the inner side of the inner wall of the rotary drum.

8. The accelerated dehydration of corn kernels apparatus according to claim 1, characterized in that: The supporting disc is a disc-shaped structure with a closed end face, one end of the rotary drum adjacent to the second support is an open structure, the open end is provided with a conical feeding cylinder, and the feeding end of the conical feeding cylinder is provided with a hopper or an end cover.

9. The accelerated dehydration of corn kernels apparatus according to claim 1, characterized in that: A plurality of convex ribs are arranged on the inner wall of the rotary drum in the axial direction.

10. The accelerated dehydration of corn kernels apparatus according to claim 1, characterized in that: A plurality of ventilation holes are arranged on the outer wall of the rotary drum, and the diameter of the ventilation holes is 0.3-0.5 cm.

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