Drying equipment for rice processing

By introducing a high-efficiency drying mechanism into the rice drying equipment, the hot air is evenly distributed by the rotation of the air guide pipe and the ventilation agitator, and the rice is turned over by the drive structure, which solves the problems of insufficient heat and uneven distribution of hot air, and improves the quality and efficiency of rice drying.

CN223826690UActive Publication Date: 2026-01-23NINGXIANG JINHE RICE IND CO LTD
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Patent Information

Application Number
CN202520457746.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-23
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing rice drying equipment suffers from insufficient and uneven hot air distribution, resulting in inadequate contact between the rice and the hot air, which affects the drying quality and efficiency.

Method used

It adopts a high-efficiency drying mechanism, including air ducts, ventilation agitators and a drive structure. Hot air at a suitable temperature is generated by a hot air blower. The rotation of the air ducts and ventilation agitators ensures that the hot air is evenly distributed. The drive structure continuously turns the rice to increase the contact frequency and duration.

Benefits of technology

This improves the uniformity and efficiency of rice drying, ensures full contact between the rice and hot air, and enhances drying quality and equipment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses drying equipment for rice processing, and belongs to the technical field of rice processing, and the drying equipment is characterized by comprising a rack, a controller is arranged on the left side of the top of the rack, a drying cylinder is arranged in the rack, and a feeding structure is arranged on the top of the drying cylinder. The hot-air blower can generate sufficient hot air with proper temperature under the regulation and control of the controller, the hot air enters the air guide pipe through the hot air pipe and the sleeve and then is uniformly blown to each corner in the drying cylinder through hot blowing micropores in the surface of the ventilation stirring plate, and meanwhile, the rotation driving structure drives the air guide pipe and the ventilation stirring plate to rotate, so that the rice is continuously stirred while being continuously dried. The contact frequency and duration of rice and hot air are increased, hot air distribution is more uniform, the problems that in the prior art, hot air heat is insufficient, distribution is not uniform, and rice and hot air are not in sufficient contact are effectively solved, and the rice drying quality and efficiency are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a drying device for rice processing. Background Technology

[0002] Rice is a finished product made from paddy through processes such as cleaning, hulling, milling, and finishing. The germ and aleurone layer of paddy contain the nutrients of rice and the nutrients needed by the human body, making it a staple food. During the processing, rice is exposed to the air for a long time, making it easy to absorb moisture from the air and become moldy. Therefore, drying equipment is needed to dry the rice during the processing to ensure that the moisture content of the rice meets the requirements for production.

[0003] Most existing rice drying equipment dries rice during transport via conveyor belts, resulting in some rice at the bottom not being dried and requiring repeated processing. This not only leads to low drying efficiency but also affects rice production. Most existing rice drying equipment uses pipes for filling, but the narrow pipe channels result in low filling rates and are not convenient for rapid drying. Therefore, we propose a rice drying equipment to solve the above problems.

[0004] An existing patent (publication number: CN216898202U) discloses a drying device for rice processing. This utility model generates heat through a heating wire, blows air through a blower, heats the air by passing through the heating wire, and sends it into the drying cylinder through the air supply pipe, so that the hot air dries the rice. Then, the end of the motor output shaft drives the rotating shaft to rotate, and the rotating shaft drives the flipping plate to rotate, so that the flipping plate flips the rice to speed up the drying process, thereby achieving the purpose of convenient drying.

[0005] To address the aforementioned issues, existing patents offer solutions. However, the drying equipment in these patents utilizes heating wires to generate heat when drying rice, and then a blower sends the heated air into the drying drum through an air duct. However, this equipment suffers from a series of problems: the heat generated by the heating wires is limited, resulting in insufficient heat in the hot air blown into the drying drum; the hot air distribution within the drying drum is uneven, affecting the uniformity of drying; and the exhaust pipe connected to the top of the drying drum not only causes the already insufficient hot air to escape quickly but also results in insufficient contact between the rice and the hot air. Although the equipment incorporates a motor-driven rotating plate to turn the rice inside the drying drum in an attempt to increase the contact between the rice and the hot air, these problems persist, ultimately reducing the quality and efficiency of rice drying.

[0006] Therefore, a drying device for rice processing is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a drying device for rice processing, which can solve the problems of the drying device in the above-mentioned patent. In the process of drying rice, the device uses heating wires to generate heat and then blows the heated air into the drying cylinder through an air pipe. However, this device has a series of problems: the heat generated by the heating wires is limited, the hot air blown into the drying cylinder by the blower is not hot enough, the distribution of hot air entering the drying cylinder is not uniform, which affects the uniformity of drying. In addition, the exhaust pipe connected to the top of the drying cylinder not only causes the already insufficient hot air to be discharged quickly, but also results in insufficient contact between the rice and the hot air. Although the device is equipped with a motor-driven flipping plate to turn the rice in the drying cylinder in an attempt to increase the contact between the rice and the hot air, these problems still exist, ultimately reducing the quality and efficiency of rice drying.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a drying device for rice processing, comprising a frame, a controller provided on the left side of the top of the frame, a drying cylinder provided inside the frame, a feeding structure provided on the top of the drying cylinder, a high-efficiency drying mechanism provided inside the drying cylinder, an exhaust pipe connected to the top of the right side of the drying cylinder, and a discharge structure provided at the bottom of the drying cylinder.

[0009] The high-efficiency drying mechanism includes an air guide pipe rotatably connected inside the drying cylinder. The left side of the air guide pipe extends through the left side of the drying cylinder. A ventilation agitator is connected to the outside of the air guide pipe. Hot air micro-holes are opened on the surface of the ventilation agitator. A drive structure is provided on the left side of the air guide pipe. A hot air fan is provided on the left side of the top of the frame. The output end of the hot air fan is connected to a hot air pipe. A sleeve is connected to the left side of the air guide pipe. The left side of the sleeve is rotatably connected to the right side of the hot air pipe. The sleeve is connected to the hot air pipe.

[0010] Preferably, the drive structure includes a motor disposed on the top left side of the platform, and the motor is electrically connected to the controller.

[0011] Preferably, the output end of the motor is fixedly connected to a shaft, and a main gear is fixedly connected to the right side of the shaft.

[0012] Preferably, a secondary gear is fixedly connected to the outer side of the air duct, and the secondary gear meshes with the main gear.

[0013] Preferably, the feeding structure includes a feeding port located at the top of the drying cylinder, and a sealing cover is rotatably connected to the top of the feeding port.

[0014] Preferably, a fixing plate is fixedly connected to the front side of the top of the closed cover, and a pull rod is fixedly connected to the top of the fixing plate.

[0015] Preferably, the discharge structure includes a discharge port at the bottom of the drying cylinder, and a groove is provided at the bottom right side of the drying cylinder, the groove being connected to the discharge port.

[0016] Preferably, a baffle is slidably connected inside the groove, and the baffle is located inside the discharge port.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a high-efficiency drying mechanism, enables the hot air blower to generate sufficient and appropriately heated hot air under the control of the controller. The hot air enters the air guide pipe through the hot air pipe and the sleeve, and is then evenly blown into all corners of the drying cylinder through the hot air micro-holes on the surface of the ventilation stirring plate. At the same time, the drive structure drives the air guide pipe and the ventilation stirring plate to rotate, continuously turning the rice and increasing the frequency and duration of contact between the rice and the hot air, so as to make the hot air distribution more uniform. This effectively solves the problems of insufficient heat, uneven distribution and insufficient contact between rice and hot air in the prior art, and significantly improves the quality and efficiency of rice drying.

[0019] 2. This application incorporates a feeding structure and a discharge structure. The feeding structure enables convenient and efficient addition of rice to the drying drum, reducing feeding time and improving the continuity of the overall drying process. The discharge structure allows for convenient and rapid discharge of the dried rice, preventing it from remaining in the drum for an extended period and improving the equipment's working efficiency. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the rice drying equipment of this utility model;

[0021] Figure 2 This is a structural diagram of the drying cylinder of this utility model;

[0022] Figure 3 This is a structural diagram of the high-efficiency drying mechanism of this utility model;

[0023] Figure 4 This is a structural diagram of the drive structure of this utility model;

[0024] Figure 5 This is a structural diagram of the feeding structure and the discharge structure of this utility model.

[0025] In the diagram, 1. Frame; 2. Controller; 3. Drying cylinder; 4. Feeding structure; 41. Feeding port; 42. Sealing cover; 43. Fixing plate; 44. Tie rod; 5. High-efficiency drying mechanism; 51. Air guide duct; 52. Ventilation stirring plate; 53. Hot air micro-hole; 54. Drive structure; 541. Motor; 542. Shaft; 543. Main gear; 544. Secondary gear; 55. Hot air blower; 56. Hot air duct; 57. Sleeve; 6. Exhaust duct; 7. Discharge structure; 71. Discharge port; 72. Groove; 73. Baffle. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A drying device for rice processing includes a frame 1, a controller 2 is provided on the top left side of the frame 1, a drying cylinder 3 is provided inside the frame 1, a feeding structure 4 is provided on the top of the drying cylinder 3, a high-efficiency drying mechanism 5 is provided inside the drying cylinder 3, an exhaust pipe 6 is connected to the top right side of the drying cylinder 3, and a discharge structure 7 is provided at the bottom of the drying cylinder 3.

[0029] The high-efficiency drying mechanism 5 includes an air guide pipe 51 rotatably connected inside the drying cylinder 3. The left side of the air guide pipe 51 extends through the left side of the drying cylinder 3. A ventilation agitator 52 is connected to the outside of the air guide pipe 51. Hot air micro-holes 53 are opened on the surface of the ventilation agitator 52. A drive structure 54 is provided on the left side of the air guide pipe 51. A hot air blower 55 is provided on the left side of the top of the frame 1. A hot air pipe 56 is connected to the output end of the hot air blower 55. A sleeve 57 is connected to the left side of the air guide pipe 51. The left side of the sleeve 57 is rotatably connected to the right side of the hot air pipe 56. The sleeve 57 is connected to the hot air pipe 56.

[0030] In this embodiment: A high-efficiency drying mechanism 5 is set up, and rice is conveniently and efficiently added into the drying cylinder 3 via the feeding structure 4. Then, the controller 2 sends a command to the hot air blower 55, which starts working and generates a large amount of appropriately heated hot air. The hot air is transmitted along the hot air duct 56. Since the sleeve 57 is connected to and rotatably connected to the hot air duct 56, the hot air smoothly enters the air guide duct 51. The air guide duct 51 rotates inside the drying cylinder 3, and the ventilation agitator 52 connected to its outer side rotates accordingly. The hot air blowing micro-holes 53 on the surface of the ventilation agitator 52 evenly blow the hot air from the air guide duct 51 to all corners inside the drying cylinder 3, heating and drying the rice from all directions. At the same time, the rotating structure... The structure 54 plays its role, driving the air guide duct 51 and the ventilation agitator 52 to rotate continuously. During the rotation, the ventilation agitator 52 continuously turns the rice, making the originally piled rice fully dispersed, increasing the frequency and duration of contact between the rice and the hot air. Moreover, the rotation of the ventilation agitator 52 also makes the distribution of hot air in the drying drum 3 more uniform, avoiding the situation of insufficient or excessive hot air in some areas. In this way, the hot air can fully contact the rice and efficiently remove the moisture from the rice, thereby improving the quality and efficiency of rice drying. Then, the discharge structure 7 can conveniently and quickly discharge the dried rice, avoiding the dried rice from staying in the drum for a long time and improving the working efficiency of the equipment.

[0031] Specifically, such as Figure 4 As shown, the drive structure 54 includes a motor 541 disposed on the top left side of the platform 1, and the motor 541 is electrically connected to the controller 2.

[0032] Specifically, such as Figure 4 As shown, a shaft 542 is fixedly connected to the output end of the motor 541, and a main gear 543 is fixedly connected to the right side of the shaft 542.

[0033] Specifically, such as Figure 4 As shown, a secondary gear 544 is fixedly connected to the outer side of the air duct 51, and the secondary gear 544 meshes with the main gear 543.

[0034] In this embodiment: by setting up a drive structure 54, the controller 2 sends an operation command to the motor 541. After receiving the command, the motor 541 starts to work, and its output end drives the shaft 542 to rotate. Since the main gear 543 is fixedly connected to the right side of the shaft 542, the main gear 543 rotates synchronously. The secondary gear 544 fixed on the outside of the air duct 51 meshes with the main gear 543. The rotation of the main gear 543 will drive the secondary gear 544 to rotate. The rotation of the secondary gear 544 will then drive the air duct 51 to rotate. The ventilation agitator 52 connected to the air duct 51 also rotates. The continuous rotation of the ventilation agitator 52 allows the hot air to be more evenly distributed in the drying cylinder 3 through the hot air micro-holes 53. On the other hand, it continuously turns the rice, increasing the contact opportunity between the rice and the hot air, so that the hot air can act on the rice more fully, effectively improving the uniformity and efficiency of drying and ensuring the quality of rice drying.

[0035] Specifically, such as Figure 5 As shown, the feeding structure 4 includes a feeding port 41 opened at the top of the drying cylinder 3, and a sealing cover 42 is rotatably connected to the top of the feeding port 41.

[0036] Specifically, such as Figure 5 As shown, a fixing plate 43 is fixedly connected to the front side of the top of the closed cover 42, and a pull rod 44 is fixedly connected to the top of the fixing plate 43.

[0037] In this embodiment: By setting the feeding structure 4, when rice needs to be added into the drying cylinder 3, the pull rod 44 is pulled. The pull rod 44 is fixed to the top of the fixing plate 43, and the fixing plate 43 is connected to the sealing cover 42. Therefore, pulling the pull rod 44 will drive the sealing cover 42 to rotate around the rotation connection point with the feeding port 41, so that the sealing cover 42 opens. At this time, the feeding port 41 is in an open state, making it convenient and quick to pour rice from the feeding port 41 into the drying cylinder 3. After the addition is completed, the pull rod 44 is pulled in the opposite direction, and the sealing cover 42 rotates back to its original position, resealing the feeding port 41. This prevents heat loss and foreign objects from entering during the drying process, ensuring the sealing and efficiency of the drying process, and reducing problems such as reduced drying efficiency caused by inconvenient feeding or poor sealing.

[0038] Specifically, such as Figure 5 As shown, the discharge structure 7 includes a discharge port 71 at the bottom of the drying cylinder 3, and a groove 72 is provided at the bottom right side of the drying cylinder 3, which is connected to the discharge port 71.

[0039] Specifically, such as Figure 5 As shown, a baffle 73 is slidably connected inside the groove 72, and the baffle 73 is located inside the discharge port 71.

[0040] In this embodiment: by setting up the discharge structure 7, after the rice is dried, the baffle 73 located in the groove 72 is pulled out. Since the groove 72 is connected to the discharge port 71 and the baffle 73 is located inside the discharge port 71, pulling the baffle 73 to make it slide in the groove 72 will open the discharge port 71. At this time, the dried rice is smoothly discharged from the drying cylinder 3 through the discharge port 71 under the action of gravity. The dried rice can be discharged in time, avoiding problems such as over-drying and moisture absorption that may be caused by staying in the cylinder for a long time, thus ensuring the quality of the rice. At the same time, the rapid discharge also improves the working efficiency of the equipment, enabling the equipment to carry out the next round of drying operations more quickly.

[0041] Working Principle: During the operation of the rice drying equipment, the operator first pulls the lever 44, causing the sealing cover 42 to rotate and open around the feeding port 41, allowing rice to be conveniently and efficiently added into the drying cylinder 3. Then, the lever 44 is pulled in the opposite direction, closing the sealing cover 42 and ensuring the sealing of the drying process. Next, the operator sends commands to the hot air blower 55 and the motor 541 via the controller 2. The hot air blower 55 starts working, generating a large amount of appropriately heated hot air. The hot air is transmitted along the hot air duct 56 and enters the air guide duct 51 through the sleeve 57, which is rotatably connected to and communicates with the hot air duct 56. Simultaneously, the motor 541 starts, and its output end drives the shaft 542 to rotate. The shaft 542 drives the main gear 543 to rotate synchronously, and the main gear 543 drives the meshing secondary gear 544 to rotate. This, in turn, drives the air guide duct 51 and the connected ventilation agitator 52 to rotate. The hot air micro-holes 53 on the surface of the ventilation agitator 52 blow hot air evenly to all corners of the drying cylinder 3, heating and drying the rice from all directions. The rotation of the ventilation agitator 52 also continuously turns the rice, increasing the frequency and duration of contact between the rice and the hot air, making the hot air distribution more even, efficiently removing moisture from the rice, and improving the drying quality and efficiency. During the drying process, the exhaust duct 6 will discharge the moisture generated during drying. After the rice is dried, the operator pulls the baffle 73 in the groove 72, causing the baffle 73 to slide in the groove 72, opening the discharge port 71. The dried rice is smoothly discharged from the discharge port 71 from the drying cylinder 3 under the action of gravity, avoiding over-drying or moisture problems, improving the working efficiency of the equipment, so that the equipment can quickly carry out the next round of drying operations.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rice drying device, comprising a frame (1), characterized in that: A controller (2) is provided on the left side of the top of the frame (1), a drying cylinder (3) is provided inside the frame (1), a feeding structure (4) is provided on the top of the drying cylinder (3), a high-efficiency drying mechanism (5) is provided inside the drying cylinder (3), an exhaust pipe (6) is connected to the top right side of the drying cylinder (3), and a discharge structure (7) is provided at the bottom of the drying cylinder (3). The high-efficiency drying mechanism (5) includes an air guide pipe (51) rotatably connected to the inside of the drying cylinder (3). The left side of the air guide pipe (51) penetrates the left side of the inside of the drying cylinder (3). The outer side of the air guide pipe (51) is connected to a ventilation stirring plate (52). The surface of the ventilation stirring plate (52) is provided with hot blowing micro-holes (53). A drive structure (54) is provided on the left side of the air guide pipe (51). A hot air blower (55) is provided on the left side of the top of the frame (1). The output end of the hot air blower (55) is connected to a hot air pipe (56). A sleeve (57) is connected to the left side of the air guide pipe (51). The left side of the sleeve (57) is rotatably connected to the right side of the hot air pipe (56). The sleeve (57) is connected to the hot air pipe (56).

2. The rice drying equipment according to claim 1, characterized in that: The drive structure (54) includes a motor (541) disposed on the top left side of the platform (1), and the motor (541) is electrically connected to the controller (2).

3. The rice drying equipment according to claim 2, characterized in that: The output end of the motor (541) is fixedly connected to a shaft (542), and a main gear (543) is fixedly connected to the right side of the shaft (542).

4. The rice drying equipment according to claim 3, characterized in that: A secondary gear (544) is fixedly connected to the outside of the air duct (51), and the secondary gear (544) meshes with the main gear (543).

5. The rice drying equipment according to claim 1, characterized in that: The feeding structure (4) includes a feeding port (41) opened at the top of the drying cylinder (3), and a sealing cover (42) is rotatably connected to the top of the feeding port (41).

6. The rice drying equipment according to claim 5, characterized in that: A fixing plate (43) is fixedly connected to the front side of the top of the closed cover (42), and a pull rod (44) is fixedly connected to the top of the fixing plate (43).

7. The rice drying equipment according to claim 1, characterized in that: The discharge structure (7) includes a discharge port (71) at the bottom of the drying cylinder (3), and a groove (72) is provided at the bottom right side of the drying cylinder (3), which is connected to the discharge port (71).

8. A rice drying device according to claim 7, characterized in that: The groove (72) is slidably connected to a baffle (73), which is located inside the discharge port (71).

Citation Information

Patent Citations

  • Drying equipment for rice processing

    CN216898202U