Grain processing and drying device and using method

By designing a grain processing and drying device with high, medium, and low temperature zones, and utilizing the flow of hot air in different temperature zones and the tumbling of the screw conveyor, the problems of low drying efficiency and unevenness of existing devices are solved, achieving efficient and uniform grain drying results.

CN120907321AInactive Publication Date: 2025-11-07TIANJIN ZHENGDAO TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511215464.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2025-11-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing grain processing and drying equipment can only dry grains intermittently in batches, resulting in low and uneven drying efficiency and low thermal energy utilization.

Method used

A grain processing and drying device including a high-temperature zone, a medium-temperature zone, and a low-temperature zone was designed. By setting up an air outlet channel, an air inlet channel, and an exhaust pipe, combined with the use of a screw conveyor and a turning plate, the grain can be flowed and turned in different temperature zones, and hot air is used to flow into the high, medium, and low temperature zones in sequence for continuous drying.

Benefits of technology

It improves the utilization rate of thermal energy, achieves uniformity and efficiency in grain drying, and significantly saves energy and reduces consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of grain processing and drying, and discloses a grain processing and drying device and a use method.The grain processing and drying device comprises a box body, a plurality of air outlet channels are fixedly installed in the box body, and a plurality of air inlet channels are fixedly installed at the positions, below the air outlet channels, in the box body; a supporting frame is fixedly installed at the bottom of the box body, and the interior of the box body is divided into a high-temperature area, a medium-temperature area and a low-temperature area through two partition plates. According to the grain processing and drying device and the using method, through the arrangement of the air outlet channel, the air inlet channel, the high-temperature area, the medium-temperature area, the low-temperature area and the exhaust pipe, hot air sequentially flows into the high-temperature area, the medium-temperature area and the low-temperature area in the using process and is exhausted through the exhaust pipe, so that the heat energy utilization rate is effectively increased, and the drying potential of hot air is extracted to the maximum extent; and energy conservation and consumption reduction are obvious.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain processing and drying, in particular to a grain processing and drying device and a use method thereof. BACKGROUND

[0002] Grains cover a wide range, including rice, wheat, millet, soybeans and other coarse grains, and cereals include rice, wheat, millet, soybeans and the like, mainly plant seeds and fruits, and are the traditional staple food of many Asian people. Grain product processing and drying devices play an important role in grain product production and processing. In grain production and processing, drying treatment is usually required. Current drying is mostly drying by air drying or through a drying device based on heat or wind. Although it can meet certain drying needs, the treatment needs to be carried out in batches, and the single treatment capacity is very limited, resulting in low drying efficiency and other problems, which still need to be improved.

[0003] Most of the existing grain processing and drying devices can only batch intermittent drying, and cannot perform continuous drying, resulting in low drying efficiency, and the grains cannot be turned over during the drying process, which easily leads to uneven drying and relatively low heat energy utilization rate. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides a grain processing and drying device and a use method thereof, which solves the problems raised in the background art.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the present application provides the following technical scheme: a grain processing and drying device and a use method, comprising a box body, a plurality of air outlet channels are fixedly installed in the inside of the box body, a plurality of air inlet channels are fixedly installed below the air outlet channels in the inside of the box body, a supporting frame is fixedly installed at the bottom of the box body, the inside of the box body is divided into a high-temperature zone, a medium-temperature zone and a low-temperature zone by two material separating plates, a material dropping port is formed at the bottom of the high-temperature zone and the medium-temperature zone, a turning plate is installed in the inside of the material dropping port through a rotating shaft, one end of the air outlet channel of the high-temperature zone is fixedly connected with the air inlet channel of the medium-temperature zone through a first air duct pipe, one end of the air outlet channel of the medium-temperature zone is fixedly connected with the air inlet channel of the low-temperature zone through a second air duct pipe, one end of the air outlet channel of the low-temperature zone is fixedly connected with an air exhaust pipe, a material lifting cylinder is fixedly installed on one side of the box body through a plurality of fixing rings, a spiral conveying rod is installed in the inside of the material lifting cylinder, the bottom of the outer wall of the material lifting cylinder is fixedly connected with the box body through a discharging pipe, the top of the outer wall of the material lifting cylinder is fixedly connected with the top of the box body through a conveying pipe, a driving motor fixedly connected with the spiral conveying rod is fixedly installed at the top of the material lifting cylinder, a discharging hopper communicated with the high-temperature zone is arranged at the top of the other side of the box body, a feeding hopper communicated with the low-temperature zone is arranged at the bottom of the other side of the box body, a hot air box is fixedly installed on one side of the supporting frame through a fixing frame, and the air outlet of the hot air box is fixedly connected with the air inlet channel of the high-temperature zone through an air supply pipe.

[0008] Preferably, both ends of the rotating shaft are rotatably penetrated through the box body and fixedly connected with gears, the front and back of the box body are provided with sliding groove plates, the bottom of each sliding groove plate is slidably provided with a rack engaged with the gear, and one end of the rack is fixedly installed with a first hydraulic cylinder.

[0009] Preferably, the inside of the discharging hopper is inserted with a first material blocking plate, and two second hydraulic cylinders fixedly connected with the first material blocking plate are installed above the discharging hopper on the other side of the box body.

[0010] Preferably, the inside of the feeding hopper is inserted with a second material blocking plate, and two third hydraulic cylinders fixedly connected with the second material blocking plate are installed above the feeding hopper on the other side of the box body.

[0011] Preferably, the inside of the hot air box is provided with a heat insulation plate, a fan is fixedly installed below the heat insulation plate in the inside of the hot air box, and an electric heating pipe is fixedly installed above the heat insulation plate in the inside of the hot air box.

[0012] Preferably, a temperature and humidity sensor is fixedly installed on the inner side wall of the high-temperature zone and the low-temperature zone, the grain drying temperatures in the high-temperature zone, the medium-temperature zone and the low-temperature zone are respectively (60-80 DEG C), (45-60 DEG C) and (30-45 DEG C), and the height setting ratio of the high-temperature zone, the medium-temperature zone and the low-temperature zone in the box body is (1:6:3).

[0013] Preferably, comprising the following steps:

[0014] Step 1: the second baffle plate is lifted from the inside of the feed hopper by the controller controlling the third hydraulic cylinder, and then the un-dried grains are injected into the low-temperature zone through the feed hopper, and then the second baffle plate is inserted into the feed hopper by the third hydraulic cylinder, and then the low-temperature and high-humidity air is blown to the grains through the air inlet channel in the low-temperature zone, and the moisture on the surface of the grains is removed;

[0015] Step 2: the grains in the ground temperature zone are lifted to the high-temperature zone by the lifting cylinder driven by the driving motor, and then the high-temperature and dry air is blown into the high-temperature zone through the hot air box, and the grains are initially dried, at this time the surface and shallow water of the grains is evaporated rapidly by high temperature, and rapid initial precipitation is realized;

[0016] Step 3: the flap in the discharge port at the bottom of the high-temperature zone is rotated by the controller, so that the grains fall into the medium-temperature zone by gravity, and then the air in the high-temperature zone is guided into the medium-temperature zone by the guide of the first air duct pipe, and the grains in the medium-temperature zone are secondarily dried, at this time the main stage of moisture migration from the inside to the surface of the grains is ensured, and the longest core moisture diffusion is ensured;

[0017] Step 4: the flap in the discharge port at the bottom of the medium-temperature zone is rotated by the controller, and the grains in the medium-temperature zone fall into the low-temperature zone for low-temperature drying, and then the high-humidity air in the low-temperature zone is discharged through the exhaust pipe, and then the grains are lifted to the high-temperature zone by the lifting cylinder, at this time the grains are again rapidly dried by the hot air, when the temperature and humidity sensor in the high-temperature zone detects that the moisture content of the grains is lower than the preset value, the first baffle plate is lifted by the second hydraulic cylinder, at this time the dried grains can be discharged through the discharge hopper, and then the above steps are repeated for continuous drying.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the present application provides a grain processing and drying device and a use method, which has the following beneficial effects:

[0020] 1. The grain processing and drying device and the use method, by the setting of the air outlet channel, the air inlet channel, the high-temperature zone, the medium-temperature zone, the low-temperature zone and the exhaust pipe, the hot air flows into the high, medium and low temperature zones in turn, and is discharged through the exhaust pipe, thereby effectively improving the heat energy utilization rate, and maximizing the drying potential of hot air, and significantly saving energy and reducing consumption.

[0021] 2、The grain processing drying device and use method, through the cooperation of the lifting cylinder, the spiral conveying rod, the discharging pipe and the conveying pipe, the spiral conveying rod is driven to rotate by the driving motor during use, and then the grain in the low temperature zone is lifted to the high temperature zone by the lifting cylinder, thereby effectively improving the uniformity of grain drying. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A front structure cross-sectional view of the grain processing drying device and use method proposed in the application;

[0023] Figure 2 A front structure cross-sectional view of the grain processing drying device and use method proposed in the application;

[0024] Figure 3 A side structure cross-sectional view of the grain processing drying device and use method proposed in the application;

[0025] Figure 4 A side structure cross-sectional view of the grain processing drying device and use method proposed in the application Figure 1 An enlarged view of the structure at A.

[0026] In the figure: 1, box 2, air outlet passage 3, air inlet passage 4, support frame 5, material separation plate 6, high temperature zone 7, medium temperature zone 8, low temperature zone 9, discharge port 10, rotating shaft 11, flap 12, first air duct 13, second air duct 14, exhaust pipe, 15, fixed ring 16, lifting cylinder 17, spiral conveying rod 18, discharging pipe 19, conveying pipe 20, driving motor 21, discharge hopper 22, feeding hopper 23, fixing frame 24, hot air box 25, gear 26, chute plate 27, rack 28, first hydraulic cylinder 29, first material blocking plate 30, second hydraulic cylinder 31, second material blocking plate 32, third hydraulic cylinder 33, heat insulation plate 34, fan 35, electric heating pipe 36, temperature and humidity sensor 37, air supply pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0028] Please refer to Figures 1-4The application provides a technical scheme that comprises a box body 1, a plurality of air outlet channels 2 are fixedly installed in the box body 1, a plurality of air inlet channels 3 are fixedly installed below the air outlet channels 2 in the box body 1, a supporting frame 4 is fixedly installed at the bottom of the box body 1, the inside of the box body 1 is divided into a high-temperature area 6, a medium-temperature area 7 and a low-temperature area 8 by two material separating plates 5, a material falling port 9 is formed in the bottom of the high-temperature area 6 and the medium-temperature area 7, a turning plate 11 is installed in the material falling port 9 through a rotating shaft 10, one end of the air outlet channel 2 of the high-temperature area 6 is fixedly connected with the air inlet channel 3 of the medium-temperature area 7 through a first air duct pipe 12, one end of the air outlet channel 2 of the medium-temperature area 7 is fixedly connected with the air inlet channel 3 of the low-temperature area 8 through a second air duct pipe 13, and one end of the air outlet channel 2 of the low-temperature area 8 is fixedly connected with an air exhaust pipe 14, through the arrangement of the air outlet channel 2, the air inlet channel 3, the high-temperature area 6, the medium-temperature area 7, the low-temperature area 8 and the air exhaust pipe 14, hot air flows into the high-temperature area, the medium-temperature area and the low-temperature area in sequence and is exhausted through the air exhaust pipe 14, so that the heat energy utilization rate is effectively improved, the drying potential of hot air is maximized, energy saving and consumption reduction are obviously realized, a material lifting cylinder 16 is fixedly installed on one side of the box body 1 through a plurality of fixing rings 15, a spiral conveying rod 17 is installed in the material lifting cylinder 16, a discharging pipe 18 is fixedly connected with the bottom of the outer wall of the material lifting cylinder 16, a conveying pipe 19 is fixedly connected with the top of the box body 1 through the top of the outer wall of the material lifting cylinder 16, a driving motor 20 fixedly connected with the spiral conveying rod 17 is fixedly installed at the top of the material lifting cylinder 16, a discharging hopper 21 communicated with the high-temperature area 6 is arranged at the top of the other side of the box body 1, a feeding hopper 22 communicated with the low-temperature area 8 is arranged at the bottom of the other side of the box body 1, a hot air box 24 is fixedly installed on one side of the supporting frame 4 through a fixing frame 23, through the cooperation of the material lifting cylinder 16, the spiral conveying rod 17, the discharging pipe 18 and the conveying pipe 19, the spiral conveying rod 17 is driven to rotate by the driving motor 20 in use, then the grains in the low-temperature area 8 are lifted into the high-temperature area 6 through the lifting cylinder 16, so that the uniformity of grain drying is effectively improved, the air outlet of the hot air box 24 is fixedly connected with the air inlet channel 3 of the high-temperature area 6 through an air supply pipe 37, both ends of the rotating shaft 10 are rotatably penetrated through the box body 1 and fixedly connected with gear wheels 25, slide groove plates 26 are arranged on the front and back of the box body 1, a rack 27 engaged with the gear wheels 25 is slidably arranged at the bottom of the slide groove plate 26, a first hydraulic cylinder 28 is fixedly installed at one end of the rack 27, a first material blocking plate 29 is inserted into the discharging hopper 21, two second hydraulic cylinders 30 fixedly connected with the first material blocking plate 29 are installed above the discharging hopper 21 on the other side of the box body 1, a second material blocking plate 31 is inserted into the feeding hopper 22, two third hydraulic cylinders 32 fixedly connected with the second material blocking plate 31 are installed above the feeding hopper 22 on the other side of the box body 1, a heat insulation plate 33 is arranged in the hot air box 24, a fan 34 is fixedly installed below the heat insulation plate in the hot air box 24, an electric heating pipe 35 is fixedly installed above the heat insulation plate 33 in the hot air box 24,The inner side wall of the high-temperature zone 6 and the low-temperature zone 8 is fixedly installed with a temperature and humidity sensor 36, the grain drying temperature in the high-temperature zone 6, the medium-temperature zone 7 and the low-temperature zone 8 is (60-80℃), (45-60℃) and (30-45℃) respectively, and the height setting ratio of the high-temperature zone, the medium-temperature zone and the low-temperature zone in the box body 1 is (1:6:3).

[0029] Working steps

[0030] Step 1: The second baffle plate 31 is lifted from the inside of the feeding hopper 22 by the controller controlling the third hydraulic cylinder 32, and then the un-dried grain is injected into the low-temperature zone 8 through the feeding hopper 22, and then the second baffle plate 31 is inserted into the feeding hopper 22 by the third hydraulic cylinder 32, and then the low-temperature and high-humidity air is blown to the grain through the air inlet channel 3 in the low-temperature zone 8, and the water on the surface of the grain is removed;

[0031] Step 2: The grain in the low-temperature zone 8 is lifted to the high-temperature zone 6 by the lifting cylinder 16 by rotating the screw conveying rod 17 driven by the driving motor 20, and then the high-temperature and dry air is blown into the high-temperature zone 6 through the hot air box 24, and the grain is initially dried, at this time, the water on the surface and the shallow layer of the grain is evaporated rapidly by high temperature, and the initial precipitation is realized rapidly;

[0032] Step 3: The flap 11 in the discharge port 9 at the bottom of the high-temperature zone 6 is rotated by the controller, so that the grain falls into the medium-temperature zone 7 by gravity, and then the air in the high-temperature zone 6 is guided into the medium-temperature zone 7 by the first air duct 12, and the grain in the medium-temperature zone 7 is secondarily dried, at this time, the water in the grain migrates from the inside to the surface, and the longest section is guaranteed to ensure sufficient core moisture diffusion;

[0033] Step 4: The flap 11 in the discharge port 9 at the bottom of the medium-temperature zone 7 is rotated by the controller, and the grain in the medium-temperature zone 6 falls into the low-temperature zone 8 for low-temperature drying, and then the high-humidity air in the low-temperature zone 8 is discharged through the exhaust pipe 14, and then the grain is lifted to the high-temperature zone 6 by the lifting cylinder 16, at this time, the grain is again rapidly dried by the hot air, when the temperature and humidity sensor 36 in the high-temperature zone 6 detects that the water content of the grain is lower than the preset value, the first baffle plate 29 is lifted by the second hydraulic cylinder 30, at this time, the dried grain can be discharged through the discharge hopper 21, and then the above steps are repeated for continuous drying.

[0034] In summary, the grain processing drying device and the using method, through the setting of the air outlet channel 2, the air inlet channel 3, the high-temperature zone 6, the medium-temperature zone 7, the low-temperature zone 8 and the air exhaust pipe 14, the hot air flows into the high, medium and low temperature zones in turn during use, and is discharged through the air exhaust pipe 14, thereby effectively improving the heat energy utilization rate and maximizing the drying potential of hot air, significantly saving energy and reducing consumption, through the cooperation of the lifting cylinder 16, the spiral conveying rod 17, the discharging pipe 18 and the conveying pipe 19, the spiral conveying rod 17 is driven to rotate by the driving motor 20 during use, and then the grain in the low-temperature zone 8 is lifted to the high-temperature zone 6 by the lifting cylinder 16, thereby effectively improving the uniformity of grain drying.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of

[0036] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain processing and drying device and its method of use, comprising a housing (1), wherein a plurality of air outlet channels (2) are fixedly installed inside the housing (1), and a plurality of air inlet channels (3) are fixedly installed below the air outlet channels (2) inside the housing (1), and a support frame (4) is fixedly installed at the bottom of the housing (1), characterized in that: The inside of the box (1) is divided into high-temperature area (6), medium-temperature area (7) and low-temperature area (8) by two material baffle (5), the bottom of high-temperature area (6) and medium-temperature area (7) are provided with drop port (9), the inside of drop port (9) is provided with flap (11) through rotating shaft (10), the one end of high-temperature area (6) air outlet (2) is fixedly connected with medium-temperature area (7) air inlet (3) through first air duct pipe (12), the one end of medium-temperature area (7) air outlet (2) is fixedly connected with low-temperature area (8) air inlet (3) through second air duct pipe (13), the one end of low-temperature area (8) air outlet (2) is fixedly connected with exhaust pipe (14), the one side of box (1) is fixedly installed with lifting cylinder (16) through a plurality of fixed ring (15), the inside of lifting cylinder (16) is provided with spiral conveying rod (17), the bottom of box (1) is fixedly connected with the outer wall bottom of lifting cylinder (16) through discharge pipe (18), the top of outer wall of lifting cylinder (16) is fixedly connected with the top of box (1) through conveying pipe (19), the top of lifting cylinder (16) is fixedly installed with driving motor (20) fixedly connected with spiral conveying rod (17), the other side top of box (1) is provided with discharge hopper (21) communicated with high-temperature area (6), the other side bottom of box (1) is provided with feeding hopper (22) communicated with low-temperature area (8), one side of support frame (4) is fixedly installed with hot air box (24) through fixing frame (23), the air outlet of hot air box (24) is fixedly connected with the air inlet (3) of high-temperature area (6) through air supply pipe (37).

2. A grain processing drying apparatus and method of use according to claim 1, wherein: Both ends of rotating shaft (10) are rotatably penetrated through box (1) and fixedly connected with gear (25), the front and back of box (1) are provided with sliding chute plate (26), the bottom of sliding chute plate (26) is provided with rack (27) engaged with gear (25) in sliding mode, one end of rack (27) is fixedly installed with first hydraulic cylinder (28).

3. A grain processing drying apparatus and method of use according to claim 1, wherein: The inside of discharge hopper (21) is inserted with first baffle (29), the other side of box (1) above discharge hopper (21) is installed with two second hydraulic cylinders (30) fixedly connected with first baffle (29).

4. A grain processing drying apparatus and method of use according to claim 1, wherein: The inside of feeding hopper (22) is inserted with second baffle (31), the other side of box (1) above feeding hopper (22) is installed with two third hydraulic cylinders (32) fixedly connected with second baffle (31).

5. A grain processing drying apparatus and method of use according to claim 1, wherein: The inside of hot air box (24) is provided with heat insulation plate (33), the inside of hot air box (24) below heat insulation plate is fixedly installed with fan (34), the inside of hot air box (24) above heat insulation plate (33) is fixedly installed with electric heating tube (35).

6. A grain processing drying apparatus and method of use according to claim 1, wherein: The inner side wall of the high temperature area (6) and the low temperature area (8) is fixedly installed with a temperature and humidity sensor (36), the grain drying temperature in the high temperature area (6), the medium temperature area (7) and the low temperature area (8) is (60-80℃), (45-60℃) and (30-45℃) respectively, and the height setting ratio of the high, medium and low temperature areas in the box (1) is (1:6:3).

7. A grain processing drying apparatus and method of use according to claims 1-6, wherein: The method comprises the following steps: Step 1: the controller controls the third hydraulic cylinder (32) to lift the second baffle (31) from the second baffle inside the feeding hopper (22), and then the feeding hopper (22) is used to inject the un-dried grain into the low temperature area (8), then the third hydraulic cylinder (32) is used to push the second baffle (31) into the feeding hopper (22), and then the air inlet channel (3) in the low temperature area (8) blows low-temperature and high-humidity air to the grain and removes the moisture on the surface of the grain; Step 2: the driving motor (20) drives the spiral conveying rod (17) to rotate, and then the lifting cylinder (16) lifts the grain in the low temperature area (8) to the high temperature area (6), and then the hot air tank (24) blows high-temperature and dry air into the high temperature area (6) and performs primary drying on the grain, at this time, the high temperature is used to evaporate the surface and shallow water of the grain quickly, and rapid initial precipitation is realized; Step 3: the controller controls the rotation of the flap (11) in the discharge port (9) at the bottom of the high temperature area (6), so that the grain falls into the medium temperature area (7) by gravity, and then the air in the high temperature area (6) is guided into the medium temperature area (7) by the first air duct (12), and the grain in the medium temperature area (7) is dried again, at this time, the water in the grain migrates from the inside to the surface, and the longest section is guaranteed to ensure sufficient core moisture diffusion; Step 4: the controller controls the rotation of the flap (11) in the discharge port (9) at the bottom of the medium temperature area (7), and the grain in the medium temperature area (6) falls into the low temperature area (8) and is dried at low temperature, then the high-humidity air in the low temperature area (8) is discharged through the exhaust pipe (14), and then the grain is lifted to the high temperature area (6) by the lifting cylinder (16), at this time, the grain is dried again by the hot air, when the temperature and humidity sensor (36) in the high temperature area (6) detects that the water content of the grain is lower than the preset value, the first baffle (29) is lifted by the second hydraulic cylinder (30), at this time, the dried grain can be discharged through the discharge hopper (21), and then the above steps are repeated to continuously dry the grain.