Energy-saving heat recovery grain drying tower

Abstract

The utility model discloses an energy-saving heat recovery grain drying tower which comprises a base, a drying tower body is arranged on the upper side of the base, a spiral blade is rotationally arranged in the middle of the drying tower body through a vertical shaft, one end of the vertical shaft is in transmission connection with a motor through a gear set, and a discharging port is formed in one side of the upper end of the drying tower body. A feeding hopper is arranged on one side of the bottom of the drying tower body, a discharging channel is formed in the portion, on the outer side of the discharging port, of the drying tower body, an impurity removing mechanism is arranged on one side of the discharging channel, and a dust suction mechanism is arranged on the other side of the discharging channel. The interior of the drying tower body can be rapidly heated and warmed through the heating rods, then the motor and the gear set drive the spiral blades to convey grains at the low position to the high position, the duration of the heating space in the grains and the drying tower body is prolonged, and the thoroughness of grain drying is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of grain drying equipment, specifically an energy-saving heat recovery grain drying tower. Background Technology

[0002] Grain losses during threshing, drying, storage, and transportation after harvest can reach as high as 15%. Of this, up to 5% is lost due to damp weather, where wet grains fail to dry sufficiently or reach safe moisture levels, leading to mold, sprouting, and other losses. Therefore, developing grain drying technology to change the traditional reliance on weather conditions is of great significance for ensuring food security. Grain drying towers can be classified according to the relative movement direction of the grain and airflow into crossflow, mixed flow, co-flow, counter-flow, and co-counter-flow, mixed-counter-flow, and co-mixed flow types.

[0003] An existing electromagnetic heating grain drying tower (application number 201910813630.3) uses electromagnetic heating to directly heat air to dry grain particles. This allows for precise temperature control, eliminates heat loss from intermediate heat exchange, simplifies equipment structure, improves grain drying quality, and recovers waste heat from the dried grain, saving energy and increasing energy efficiency. The drying section, electromagnetic heating section, and waste heat recovery section all employ modular design for easy assembly, providing customized configurations based on different drying requirements, making it widely applicable and optimizing grain drying efficiency and quality. Its simple structure, convenient installation and operation, and energy-saving and environmentally friendly design allow for the organic superposition and combination of the drying section, electromagnetic heating section, and waste heat recovery section to achieve optimal drying results for different types, moisture levels, and uses of grain. However, it is not convenient for removing impurities and cooling the dried grain, thus affecting the equipment's functional versatility. Utility Model Content

[0004] The purpose of this utility model is to provide an energy-saving heat recovery grain drying tower to solve the problem in the prior art that it is inconvenient to remove impurities and cool the dried grain, thus affecting the functional diversity of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving heat recovery grain drying tower, including a base, a drying tower body on the upper side of the base, a spiral blade rotatably mounted in the middle of the drying tower body via a vertical shaft, a motor connected to one end of the vertical shaft via a gear set, a discharge port on one side of the upper end of the drying tower body, a feed hopper on one side of the bottom of the drying tower body, and a discharge channel in the drying tower body outside the discharge port, a cleaning mechanism on one side of the discharge channel, and a dust collection mechanism on the other side of the discharge channel.

[0006] Furthermore, the gear set is a reduction gear, and the motor is fixedly mounted on the top of the drying tower body via a base.

[0007] Furthermore, the inner wall of the drying tower is provided with multiple heating rods, and the outer side of the drying tower is provided with a heat insulation layer.

[0008] Furthermore, the outer wall of the spiral blade is slidably attached to the inner wall of the drying tower, and the upper outer side of the spiral blade is provided with multiple limiting ribs for storing materials.

[0009] Furthermore, the impurity removal mechanism includes an air outlet located on one side of the discharge channel, and a blower is provided at one end of the air outlet via an air conveying pipe.

[0010] Furthermore, the dust collection mechanism includes a dust collection port located on the other side of the discharge channel, and one end of the dust collection port is connected to a dust collection box via a dust collection pipe, and one side of the dust collection box is connected to a dust collection fan via a negative pressure pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes a rotating spiral blade located in the center of the drying tower. One end of the vertical shaft is connected to an electric motor via a gear set. The inner wall of the drying tower is equipped with multiple heating rods, and the outer side of the drying tower is equipped with an insulation layer. The heating rods can rapidly heat the interior of the drying tower. Then, the electric motor and gear set drive the spiral blades to transport the grain from a lower position to a higher position, increasing the time the grain spends in the heating space inside the drying tower, which helps to improve the thoroughness of grain drying.

[0013] This utility model features a discharge channel inside the drying tower outside the discharge port, with a removal mechanism on one side of the discharge channel. The removal mechanism includes an air outlet on one side of the discharge channel, and a blower is connected to one end of the air outlet via an air conveying pipe. This allows cool air to be blown horizontally through the blower and air conveying pipe, removing lighter impurities from the grain discharged from the discharge port after drying. At the same time, the cool air can be used to cool the dried grain, improving the versatility of the equipment's functions.

[0014] This utility model features a dust collection mechanism on the other side of the discharge channel. The dust collection mechanism includes a dust collection port located on the other side of the discharge channel, with one end of the dust collection port connected to a dust storage box via a dust collection pipe. A dust collection fan is connected to one side of the dust storage box via a negative pressure pipe. This allows the dust collection pipe, dust storage box, and dust collection fan to perform dust collection and impurity removal on the grain falling under gravity. The simultaneous action of dust collection and dust blowing results in a better grain impurity removal effect. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the drying tower body of this utility model;

[0018] Figure 3 This is a left view of the discharge channel structure of this utility model.

[0019] In the diagram: 1. Base; 2. Drying tower body; 3. Vertical shaft; 4. Spiral blades; 5. Limiting ribs; 6. Feed hopper; 7. Discharge port; 8. Motor; 9. Gear set; 10. Machine base; 11. Discharge channel; 12. Air outlet; 13. Air conveying pipe; 14. Blower; 15. Dust suction port; 16. Dust suction pipe; 17. Dust storage box; 18. Dust suction fan; 19. Negative pressure pipe; 20. Heating rod. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the utility model, an energy-saving heat recovery grain drying tower includes a base 1, a drying tower body 2 on the upper side of the base 1, a spiral blade 4 rotatably mounted in the middle of the drying tower body 2 via a vertical shaft 3, a motor 8 connected to one end of the vertical shaft 3 via a gear set 9, the gear set 9 being a reduction gear, and the motor 8 being fixedly mounted on the top of the drying tower body 2 via a base 10, a discharge port 7 on one side of the upper end of the drying tower body 2, a feed hopper 6 on one side of the bottom of the drying tower body 2, multiple heating rods 20 on the inner wall of the drying tower body 2, and a heat insulation layer on the outer side of the drying tower body 2, so that the spiral blade 4 driven by the motor 8 and the gear set 9 can transport the grain from a lower position to a higher position, and at the same time, the heating rods 20 can rapidly heat the inside of the drying tower body 2, increasing the time for the grain to be heated in the heating space inside the drying tower body 2, which is beneficial to improving the thoroughness of grain drying, and a PLC control cabinet for overall control is provided on the outer side of the drying tower body 2.

[0022] like Figure 1 and Figure 3 As shown, in order to improve the functionality of the equipment, a discharge channel 11 is provided inside the drying tower body 2 outside the discharge port 7. A cleaning mechanism is provided on one side of the discharge channel 11. The cleaning mechanism includes an air outlet 12 on one side of the discharge channel 11, and a blower 14 is provided at one end of the air outlet 12 through the air conveying pipe 13. The blower 14 and the air conveying pipe 13 can blow cool air horizontally, which can blow away lighter impurities from the grain discharged from the discharge port 7 after drying. At the same time, the cool air can be used to cool the dried grain, thus improving the functionality of the equipment.

[0023] like Figure 1 and Figure 3 As shown, in order to improve the efficiency of dust collection and impurity removal of the equipment, a dust collection mechanism is also provided on the other side of the discharge channel 11. The dust collection mechanism includes a dust collection port 15 located on the other side of the discharge channel 11, and one end of the dust collection port 15 is connected to a dust storage box 17 through a dust collection pipe 16. One side of the dust storage box 17 is connected to a dust collection fan 18 through a negative pressure pipe 19. This allows the dust collection pipe 16, the dust storage box 17 and the dust collection fan 18 to perform dust collection and impurity removal on the grain falling by gravity. The simultaneous action of dust collection and dust blowing results in a better grain impurity removal effect. In addition, a filter screen is provided at the connection between the negative pressure pipe 19 and the dust storage box 17 to facilitate the retention of impurities in the dust storage box 17.

[0024] In order to prevent grain from being discharged from the dust inlet 15 and the air outlet 12, this application will install filter screens in the dust inlet 15 and the air outlet 12. At the same time, in order to improve the purity of the air, a dust filter will also be installed at the air inlet of the air duct 13.

[0025] like Figure 1 and Figure 2 As shown, the outer wall of the spiral blade 4 is also slidably attached to the inner wall of the drying tower body 2. The upper outer side of the spiral blade 4 is provided with multiple limiting ribs 5 for storing materials. The limiting ribs 5 increase the anti-slip properties of the upper part of the spiral blade 4, making it easier for the grain to be conveyed upward and dried by the spiral blade 4.

[0026] The working principle and usage process of this utility model are as follows: During use, the grain to be dried is fed into the bottom of the drying tower 2 through the feed hopper 6. The spiral blades 4, rotating in the middle of the drying tower 2, are driven by the motor 8 and gear set 9 to transport the grain from a lower position to a higher position. Simultaneously, the heating rod 20 rapidly heats the interior of the drying tower 2, increasing the heating time between the grain and the drying tower 2, thus improving the thoroughness of grain drying. Furthermore, a discharge channel 11 is provided inside the drying tower 2 outside the discharge port 7. A cleaning mechanism is provided on one side of the discharge channel 11, allowing the blower 14 and air duct 13 of the cleaning mechanism to blow cool air horizontally. This removes lighter impurities from the grain discharged from the discharge port 7 after drying, and simultaneously cools the dried grain, improving the equipment's functional versatility.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy-saving heat recovery grain drying tower, comprising a base (1), characterized in that: The base (1) is provided with a drying tower body (2) on the upper side. The drying tower body (2) is provided with a spiral blade (4) through a vertical shaft (3) in the middle. One end of the vertical shaft (3) is connected to a motor (8) through a gear set (9). The upper end of the drying tower body (2) is provided with a discharge port (7), and the drying tower body (2) outside the discharge port (7) is provided with a discharge channel (11). The discharge channel (11) is provided with a cleaning mechanism on one side and a dust collection mechanism on the other side.

2. The energy-saving heat recovery grain drying tower according to claim 1, characterized in that: The gear set (9) is a reduction gear, and the motor (8) is fixedly mounted on the top of the drying tower body (2) via the base (10).

3. The energy-saving heat recovery grain drying tower according to claim 2, characterized in that: The drying tower body (2) has multiple heating rods (20) on its inner wall and an insulation layer on its outer side.

4. The energy-saving heat recovery grain drying tower according to claim 1, characterized in that: The outer wall of the spiral blade (4) is slidably attached to the inner wall of the drying tower body (2), and the upper outer side of the spiral blade (4) is provided with multiple limiting ribs (5) for storing materials.

5. The energy-saving heat recovery grain drying tower according to claim 1, characterized in that: The impurity removal mechanism includes an air outlet (12) located on one side of the discharge channel (11), and a blower (14) is provided at one end of the air outlet (12) through the air conveying pipe (13).

6. The energy-saving heat recovery grain drying tower according to claim 1, characterized in that: The dust collection mechanism includes a dust collection port (15) located on the other side of the discharge channel (11), and one end of the dust collection port (15) is connected to a dust collection box (17) via a dust collection pipe (16). A dust collection fan (18) is connected to one side of the dust collection box (17) via a negative pressure pipe (19).

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