Grain circulation type efficient dryer

By combining a dual drying mechanism and a vibrating conveyor mechanism, the problems of uneven drying and accumulation in grain dryers are solved, achieving efficient and uniform drying of grains and adapting to continuous production.

CN224386694UActive Publication Date: 2026-06-23HENAN HUINONG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HUINONG MACHINERY CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-23

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Abstract

The utility model provides grain circulation formula high -efficient dryer relates to grain production technical field, including dryer body, fixed setting on the support surface, drying cavity, opening in the inside of dryer body, drying mechanism, the number is two, respectively fixed setting at the front of dryer body and the top of dryer body, is used for carrying out drying treatment to the grain in the inside of drying cavity, a plurality of installation groove all open in the front and back side wall of the inside of dryer body, pass through double drying mechanism (front + top) layout, cooperate vibration conveying mechanism extension soybean grain conveying path, make soybean grain in drying cavity contact with dry airflow fully, solve the problem that the traditional single drying source, the short conveyance lead to the uneven drying problem, let soybean grain receive the more comprehensive baking, improve overall drying efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of grain production technology, and in particular to a high-efficiency grain circulating dryer. Background Technology

[0002] Soybeans are a type of grain and are widely cultivated in my country.

[0003] Grain dryers, as key equipment in post-harvest grain processing, are of great significance in ensuring grain quality and reducing post-harvest losses. They are widely used in grain storage and processing, reducing moisture content, inhibiting mold and pest growth, and extending storage life by drying grain. In the grain production and processing industry chain, efficient dryers can improve grain processing efficiency and contribute to the large-scale and modern development of the grain industry.

[0004] However, existing grain dryers have many shortcomings. On the one hand, the drying structure design is simple, relying on a single drying source, resulting in poor drying uniformity and easy occurrence of local over-drying or under-drying, affecting grain quality. On the other hand, the conveying mechanism has limited functionality, and grain tends to accumulate during transport within the drying chamber, leading to insufficient drying. Furthermore, the short conveying process results in insufficient contact time between the grain and the drying medium, reducing drying efficiency.

[0005] Therefore, we propose a high-efficiency grain circulation dryer. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies. On the one hand, the drying structure design is simple and relies on a single drying source, resulting in poor drying uniformity and the possibility of local over-drying or under-drying, which affects grain quality. On the other hand, the conveying mechanism has limited functionality, and grain tends to accumulate during transport within the drying chamber, leading to insufficient drying. Furthermore, the short conveying process results in insufficient contact time between the grain and the drying medium, reducing drying efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-efficiency grain circulating dryer includes: a dryer body, which is fixedly mounted on a support surface;

[0009] The drying chamber is located inside the dryer body; there are two drying mechanisms, which are fixedly installed on the front and top of the dryer body respectively, for drying the grain inside the drying chamber; and several mounting slots are located on the front and back side walls inside the dryer body.

[0010] Several fixed partition blocks are equidistantly fixedly installed in several mounting slots;

[0011] Three sets of vibrating conveying mechanisms are arranged between several fixed partition blocks, including a drive end, several connecting ends, and a conveying plate structure. The connecting ends are arranged between the fixed partition blocks, and the conveying plate structure is arranged between the connecting ends. The drive end is located at the bottom of the conveying plate structure. The drive end is used to drive the conveying plate structure to vibrate on the connecting ends. The conveying plate structure is used to vibrate and convey grain, thereby extending the conveying time and effectively preventing accumulation during vibrating conveying.

[0012] The negative pressure feeding mechanism is fixedly installed on the support surface, and one end is connected to the drying chamber to transport the grain into the drying chamber.

[0013] As a preferred embodiment of this utility model, it further includes: a discharge port, which is located at the bottom of the dryer body and is used to discharge the dried grain; and an inclined seat, which is fixedly installed at the bottom of the drying chamber and is used to guide the dried grain to the discharge port.

[0014] As a preferred embodiment of this utility model, the drying mechanism includes: a mounting shell, fixedly disposed on the top of the dryer body; several heating rods, fixedly disposed at the bottom inside the mounting shell; a fan base, fixedly disposed inside the mounting shell and located above the heating rods; and a filter screen, fixedly disposed on the top of the mounting shell for blocking dust.

[0015] As a preferred embodiment of this utility model, the drive end includes: a drive motor, which is fixedly mounted on the back side wall of the dryer body; a rotating rod, which is mounted inside the drying chamber and whose input end is connected to the drive motor; and a cam, which is fixedly mounted at the center of the rotating rod.

[0016] As a preferred embodiment of this utility model, the conveyor plate structure includes: a conveyor plate body for conveying grain; two barrier nets, which are provided on both sides of the conveyor plate body for air circulation; and a contact block, which is fixedly disposed at the center of the bottom of the conveyor plate body for connection with the contact block.

[0017] As a preferred embodiment of this utility model, the connecting end includes: a linear optical axis, which is fixedly disposed between two adjacent fixed partition blocks; a sliding mounting block, which is slidably connected to the linear optical axis and has one end fixedly disposed at the conveyor plate body; and a spring, which is sleeved between the sliding mounting block and the fixed partition block located above the sliding mounting block.

[0018] As a preferred embodiment of this utility model, the negative pressure feeding mechanism includes: a feeding component, fixedly installed on the top of the dryer body, for conveying grain into the drying chamber; a connecting component, fixedly installed on the top of the feeding component; a negative pressure pump, fixedly installed on the back side wall of the connecting component; a feeding pipe, fixedly installed on the right side wall of the connecting component; and a storage box, fixedly installed on the support surface, and internally connected to the feeding pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In this invention, the dual drying mechanism (front + top) is used in conjunction with a vibrating conveyor mechanism to extend the soybean grain conveying path, so that the soybean grain can fully contact the drying airflow in the drying chamber. This solves the problem of uneven drying caused by the traditional single drying source and short conveying, allowing the soybean grain to be dried more comprehensively and improving the overall drying efficiency.

[0021] The three sets of vibrating conveyor mechanisms utilize the characteristics of vibrating conveying to continuously vibrate and disperse soybean grains on the conveyor plate, avoiding accumulation and solving the problem of insufficient drying caused by easy accumulation in traditional conveying; at the same time, vibrating conveying extends the residence time of soybean grains, ensuring the drying effect.

[0022] The negative pressure feeding mechanism uses negative pressure to transport soybeans, replacing the traditional gravity feeding method. This avoids feeding blockages and uneven feeding, adapts to the needs of continuous production, and ensures a stable connection in the drying process.

[0023] The discharge port is equipped with an inclined seat, which guides the dried soybeans to be discharged quickly and orderly, avoiding residue accumulation and ensuring efficient collection of dried soybeans. This forms a complete synergy with the drying process and improves the overall practicality of the equipment. Attached Figure Description

[0024] Figure 1 A schematic diagram of the main structure of the grain circulating high-efficiency dryer provided by this utility model;

[0025] Figure 2 A rear view schematic diagram of the main body of the grain circulation high-efficiency dryer provided by this utility model;

[0026] Figure 3 A front view cross-sectional schematic diagram of the grain circulation high-efficiency dryer provided by this utility model;

[0027] Figure 4 A schematic diagram of the back view of the high-efficiency grain circulation dryer provided by this utility model;

[0028] Figure 5 The grain circulating high-efficiency dryer provided by this utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0029] Legend: 10. Dryer body; 20. Drying chamber; 30. Drying mechanism; 301. Mounting shell; 302. Heating rod; 303. Fan seat; 304. Filter screen; 40. Mounting groove; 50. Fixed partition block; 60. Vibrating conveyor mechanism; 601. Linear optical axis; 602. Sliding mounting block; 603. Spring; 605. Conveyor plate body; 606. Barrier net; 607. Contact block; 608. Rotating rod; 609. Drive motor; 610. Cam; 70. Inclined seat; 80. Discharge port; 90. Negative pressure feeding mechanism; 901. Feeding component; 902. Connecting component; 903. Negative pressure pump; 904. Feeding pipe; 905. Storage box. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Example

[0035] like Figure 1-5As shown, this utility model provides a technical solution: a high-efficiency soybean grain circulating dryer, including: a dryer body 10, which is fixedly mounted on a support surface;

[0036] The drying chamber 20 is located inside the dryer body 10;

[0037] There are two drying mechanisms 30, which are fixedly installed on the front and top of the dryer body 10 respectively, and are used to dry the soybean grains inside the drying chamber 20.

[0038] Several mounting slots 40 are provided on the front and back side walls inside the dryer body 10;

[0039] Several fixed partition blocks 50 are equidistantly fixedly installed in several mounting slots 40;

[0040] Three sets of vibrating conveying mechanisms 60 are arranged between several fixed partition blocks 50. Each set includes a drive end, several connecting ends, and a conveying plate structure. The connecting ends are arranged between the fixed partition blocks 50, and the conveying plate structure is arranged between the connecting ends. The drive end is located at the bottom of the conveying plate structure. The drive end is used to drive the conveying plate structure to vibrate on the connecting ends. The conveying plate structure is used to vibrate and convey soybeans, thereby extending the conveying time and effectively preventing accumulation during vibrating conveying.

[0041] The negative pressure feeding mechanism 90 is fixedly installed on the support surface, and one end is connected to the drying chamber 20 to transport soybean grain into the drying chamber 20.

[0042] The negative pressure feeding mechanism 90 draws soybean grains from the storage box 905 into the drying chamber 20 through the feeding pipe 904 using negative pressure. The soybean grains fall onto the conveying plate structure of the vibrating conveying mechanism 60. The drive end drives the conveying plate structure to vibrate, causing the soybean grains to tumble and move slowly during the conveying process, extending the residence time of the soybean grains in the drying chamber 20 and preventing the soybean grains from piling up. The two drying mechanisms 30 respectively deliver hot air into the drying chamber 20 from the front and top, making full contact with the vibrating conveyed soybean grains to achieve efficient drying.

[0043] Also includes:

[0044] The discharge port 80 is located at the bottom of the dryer body 10 and is used to discharge the dried soybeans.

[0045] The inclined seat 70 is fixedly installed at the bottom of the drying chamber 20 to guide the dried soybean grains to the discharge port 80.

[0046] After being conveyed and dried more than 60 times by the vibrating conveyor, the soybean grains finally fall onto the inclined seat 70 at the bottom of the drying chamber 20. The inclined surface of the inclined seat 70 guides the soybean grains to slide towards the discharge port 80, and the automatic discharge is achieved by using gravity, ensuring that the dried soybean grains are discharged quickly and smoothly.

[0047] The drying mechanism 30 includes:

[0048] The housing 301 is fixedly mounted on the top of the dryer body 10;

[0049] Heating rods 302, in several quantities, are fixedly installed at the bottom inside the mounting housing 301;

[0050] The fan holder 303 is fixedly installed inside the mounting housing 301 and located above the heating rod 302;

[0051] The filter screen 304 is fixedly installed on the top of the mounting housing 301 to block dust.

[0052] When the fan inside the fan holder 303 is running, the outside air enters the mounting housing 301 after being filtered by the filter screen 304, and is heated into hot air by the heating rod 302. The hot air is sent into the drying chamber 20 through the air outlet at the bottom of the mounting housing 301 to dry the soybean grain. The filter screen 304 can prevent dust from entering the drying chamber 20 and contaminating the soybean grain.

[0053] The driver includes:

[0054] The drive motor 609 is fixedly mounted on the back side wall of the dryer body 10;

[0055] The rotating rod 608 is located inside the drying chamber 20, and its input end is connected to the drive motor 609;

[0056] Cam 610 is fixedly mounted at the center of rotating rod 608.

[0057] The drive motor 609 drives the rotating rod 608 to rotate, causing the cam 610 to rotate synchronously; the eccentric structure of the cam 610 periodically pushes the conveyor plate structure during rotation, causing it to vibrate up and down, providing power for the conveying of soybeans.

[0058] The conveyor plate structure includes:

[0059] The conveyor plate body 605 is used for conveying soybean grains;

[0060] Two barrier nets 606 are provided on both sides of the conveyor plate body 605 for air circulation.

[0061] Contact block 607 is fixedly installed at the center of the bottom of the conveyor plate body 605 and is used to connect with contact block 607.

[0062] When the cam 610 pushes the contact block 607, the conveyor plate body 605 slides upward along the linear optical axis 601 and compresses the spring 603; after the cam 610 rotates past the highest point, the spring 603 rebounds and causes the conveyor plate body 605 to slide downward, forming periodic vibration; the soybean grains move along the surface of the conveyor plate body 605 under the action of vibration, while the barrier net 606 allows hot air to pass through, increasing the contact area between the soybean grains and the hot air and improving the drying efficiency.

[0063] The connection includes:

[0064] A linear optical axis 601 is fixedly set between two adjacent fixed partition blocks 50;

[0065] The sliding mounting block 602 is slidably connected to the linear optical axis 601, and one end is fixedly set at the conveyor plate body 605;

[0066] Spring 603 is sleeved between sliding mounting block 602 and fixed partition block 50 located above sliding mounting block 602.

[0067] When the conveyor plate body 605 is pushed by the cam 610, the sliding mounting block 602 slides upward along the linear optical axis 601, and the spring 603 is compressed to store elastic potential energy; when the pushing force disappears, the spring 603 releases its potential energy, pushing the sliding mounting block 602 downward to reset the conveyor plate body 605; the linear optical axis 601 provides guidance for the sliding mounting block 602 to ensure stable vibration of the conveyor plate body 605.

[0068] The negative pressure feeding mechanism 90 includes:

[0069] The feed component 901 is fixedly installed on the top of the dryer body 10 and is used to transport soybean grains into the drying chamber 20.

[0070] The connecting component 902 is fixedly installed on the top of the feed component 901;

[0071] The negative pressure pump 903 is fixedly installed on the back side wall of the connecting member 902;

[0072] The feeding pipe 904 is fixedly installed on the right side wall of the connecting member 902;

[0073] Storage box 905 is fixedly mounted on the support surface and is internally connected to feeding pipe 904.

[0074] After the negative pressure pump 903 is started, a negative pressure is formed in the connecting part 902 and the feeding pipe 904, which draws the soybean grain in the storage box 905 into the feeding pipe 904; the soybean grain enters the drying chamber 20 through the feeding part 901 with the airflow, realizing automatic feeding; by controlling the power of the negative pressure pump 903, the feeding speed can be adjusted to adapt to different drying needs.

[0075] Workflow

[0076] Material feeding stage

[0077] First, the negative pressure feeding mechanism 90 starts operating, and the negative pressure pump 903 starts, creating a negative pressure environment in the connecting part 902 and the feeding pipe 904. With the help of this negative pressure, the soybean grains in the storage box 905 are sucked into the feeding pipe 904. Then, the soybean grains are carried by the airflow through the feeding part 901 into the drying chamber 20 inside the dryer body 10, ready for drying. The feeding speed can be adjusted as needed by controlling the power of the negative pressure pump 903.

[0078] Drying stage

[0079] After the soybean grains enter the drying chamber 20, they fall onto the conveyor plate structure of the vibrating conveyor mechanism 60. At this time, the drying mechanism 30 comes into play. The two drying mechanisms 30 located on the front and top of the dryer body 10 operate. The fan in the fan seat 303 runs. The outside air first passes through the filter screen 304 and then enters the mounting shell 301. It is heated into hot air by several heating rods 302 at the bottom of the mounting shell 301. The hot air is sent into the drying chamber 20 from the air outlet at the bottom of the mounting shell 301.

[0080] Simultaneously, the drive motor 609 of the vibrating conveyor mechanism 60 drives the rotating rod 608 to rotate, and the cam 610 on the rotating rod 608 rotates synchronously. The eccentric structure of the cam 610 periodically pushes the contact block 607 at the bottom of the conveyor plate structure, causing the conveyor plate structure to vibrate up and down along the linear optical axis 601 of the connecting end. Specifically, when the cam 610 pushes the contact block 607, the conveyor plate body 605 drives the sliding mounting block 602 to slide upward along the linear optical axis 601 and compress the spring 603. After the cam 610 rotates past the highest point, the spring 603 rebounds, causing the conveyor plate body 605 to slide downward and reset. This cycle forms periodic vibration, and the soybean grains continuously tumble and move slowly under the vibration of the conveyor plate body 605. During the movement, the barrier nets 606 on both sides of the conveyor plate body 605 allow hot air to pass through, allowing the soybean grains to fully contact the hot air, achieving efficient and uniform drying. Furthermore, the vibration conveying process effectively avoids the accumulation of soybean grains, prolongs the residence time of soybean grains in the drying chamber 20, and ensures the drying effect.

[0081] Discharge stage

[0082] After multiple cycles of vibration conveying and drying, the soybean grains finally fall onto the inclined seat 70 at the bottom of the drying chamber 20. The inclined seat 70 uses its own inclined surface to guide the soybean grains to slide towards the discharge port 80 by gravity, so that the dried soybean grains can be discharged quickly and smoothly from the discharge port 80, completing the entire soybean grain drying and discharge process.

[0083] 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 high-efficiency grain circulating dryer, characterized in that, include: The dryer body (10) is fixedly mounted on the support surface; The drying chamber (20) is located inside the dryer body (10); The drying mechanism (30) consists of two units, which are fixedly installed on the front and top of the dryer body (10) respectively, and are used to dry the grain inside the drying chamber (20). Several mounting slots (40) are provided on the front and back side walls inside the dryer body (10); Several fixed partition blocks (50) are fixedly arranged at equal intervals in several mounting slots (40); Three sets of vibrating conveying mechanisms (60) are arranged between several fixed partition blocks (50), including a driving end, several connecting ends and a conveying plate structure. The several connecting ends are arranged between several fixed partition blocks (50), the conveying plate structure is arranged between several connecting ends, and the driving end is arranged at the bottom of the conveying plate structure. The driving end is used to drive the conveying plate structure to vibrate on the connecting ends. The conveying plate structure is used to vibrate and convey grain, thereby extending the conveying time and effectively avoiding accumulation during vibrating conveying. The negative pressure feeding mechanism (90) is fixedly installed on the support surface, and one end is connected to the drying chamber (20) to transport the grain into the drying chamber (20).

2. The high-efficiency grain circulating dryer according to claim 1, characterized in that, Also includes: The discharge port (80) is located at the bottom of the dryer body (10) and is used to discharge the grain after drying. An inclined seat (70) is fixedly installed at the bottom of the drying chamber (20) to guide the dried grain to the discharge port (80).

3. The high-efficiency grain circulating dryer according to claim 2, characterized in that, The drying mechanism (30) includes: The housing (301) is fixedly mounted on the top of the dryer body (10); Heating rods (302), in several quantities, are fixedly installed at the bottom inside the mounting housing (301); The fan holder (303) is fixedly installed inside the mounting housing (301) and located above the heating rod (302); A filter screen (304) is fixedly mounted on the top of the mounting housing (301) to block dust.

4. The high-efficiency grain circulating dryer according to claim 3, characterized in that, The driver includes: The drive motor (609) is fixedly mounted on the back side wall of the dryer body (10); The rotating rod (608) is located inside the drying chamber (20), and its input end is connected to the drive motor (609); The cam (610) is fixedly located at the center of the rotating rod (608).

5. The high-efficiency grain circulating dryer according to claim 4, characterized in that, The conveyor plate structure includes: The conveyor plate body (605) is used for conveying grain; Two barrier nets (606) are provided on both sides of the conveyor plate body (605) for air circulation; The contact block (607) is fixedly installed at the center of the bottom of the conveyor plate body (605) and is used to connect with the contact block (607).

6. The high-efficiency grain circulating dryer according to claim 5, characterized in that the connecting end include: A linear optical axis (601) is fixedly set between two adjacent fixed partition blocks (50); The sliding mounting block (602) is slidably connected to the linear optical axis (601), and one end is fixedly set at the conveyor plate body (605); A spring (603) is fitted between a sliding mounting block (602) and a fixed partition block (50) located above the sliding mounting block (602).

7. The high-efficiency grain circulating dryer according to claim 6, characterized in that, The negative pressure feeding mechanism (90) includes: The feed component (901) is fixedly installed on the top of the dryer body (10) and is used to transport the grain into the drying chamber (20); The connecting member (902) is fixedly disposed on the top of the feed member (901); A negative pressure pump (903) is fixedly installed on the back side wall of the connecting member (902); The feeding pipe (904) is fixedly installed on the right side wall of the connecting piece (902); The storage box (905) is fixedly mounted on the support surface and is internally connected to the feeding pipe (904).