Grain dryer

Abstract

The utility model discloses a grain dryer, which belongs to the technical field of grain dryers and comprises a transmission base, a turnover dryer is mounted at the top of the transmission base, a screening and feeding component is connected to the top of one end of the turnover dryer and comprises a screening box, transmission motors are arranged in the middles of two sides of the screening box, and the transmission motors are connected with the turnover dryer. Discharging plates are obliquely connected to the two sides, away from the transmission motor, of the screening box correspondingly, when the transmission motor is powered on to operate, a transmission disc and a cam can be driven to rotate on the two sides of the inner wall of the screening box, and due to the fact that the cam makes rolling contact with the two sides of two filter screen plates, the obliquely-arranged discharging plates can be driven to vibrate up and down in the screening box; in the process, grains fed into the screening box body can be screened and filtered, it is ensured that grain particles enter the overturning drying cylinder through the filtering net plate, mixed impurities such as straw are effectively screened out and discharged, and the screened impurities such as straw are smoothly discharged through the inclined structure of the discharging plate and the filtering net plate.

Description

Technical Field

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

[0002] Grains refer to food that provides energy for human life and is necessary for survival, such as various plant seeds, fruits, vegetables and meat products. They mainly contain protein, vitamins, dietary fiber and fat. For plant seeds (such as peanuts, soybeans, corn and wheat), drying equipment is usually used to dry the harvested grains to remove moisture in order to facilitate their storage.

[0003] Currently, existing grain dryers often lack effective impurity filtration mechanisms, resulting in the grain to be dried being mixed with impurities such as straw before being fed into the drying equipment. This not only increases drying time but also negatively impacts work efficiency. Furthermore, excessive straw and other impurities mixed with the grain can lead to accumulation and blockages inside the dryer, affecting normal operation and potentially increasing the risk of malfunction under certain conditions, thus creating safety hazards.

[0004] Based on this, we propose a grain dryer to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a grain dryer that can solve the problems of existing grain dryers, such as the lack of an effective impurity filtration mechanism, which leads to the mixing of grain with impurities such as straw, prolonged drying time, reduced working efficiency, and equipment blockage.

[0007] To solve the above technical problems, this utility model provides a grain dryer, which adopts the following technical solution: it includes a transmission base, a rotating dryer is installed on the top of the transmission base, a screening and feeding assembly is connected to the top of one end of the rotating dryer, the screening and feeding assembly includes a screening box, a transmission motor is provided in the middle of both sides of the screening box, a discharge plate is inclinedly connected to the two sides of the screening box away from the transmission motor, and a filter screen is also inclinedly arranged inside the screening box near the discharge plate;

[0008] Both sets of drive motors have drive discs installed at their output ends, and multiple sets of cams are arranged in a circular array around the outer periphery of the two sets of drive discs.

[0009] Optionally, the aperture of the filter screen is matched with the diameter of the grain, and the cam makes rolling contact with the two sides of the two sets of filter screens.

[0010] Optionally, two sets of guide sliders are installed on both sides of the filter screen, and compression springs are connected to both ends of the guide sliders. Guide grooves are respectively opened on the two sides of the guide sliders away from the compression springs.

[0011] Optionally, the top of the screening box is connected to a feed flange pipe, and four sets of guide ports are opened on both sides of the screening box. The guide ports are matched with the guide slider structure, and the guide ports and guide grooves are in sliding fit.

[0012] Optionally, the rotary dryer includes a rotary drying cylinder, which is connected to the transmission base via a transmission connection, and a material discharge end cover is installed at one end of the rotary drying cylinder.

[0013] Optionally, the screening and feeding assembly includes a material discharge end cover, a hot air blower is installed at the end of the material discharge end cover away from the rotating drying cylinder, a feeding hopper is installed on the top of the material discharge end cover, and the feeding hopper is fixedly connected to the screening box.

[0014] In summary, this utility model has at least one of the following beneficial effects: This solution utilizes a screening and feeding assembly installed at the top of one end of the rotary dryer. This assembly mainly consists of a screening box, a drive motor, a discharge plate, and a filter screen. The filter screen includes a guide slider, a compression spring, and a guide groove. When the drive motor is powered on, it drives the drive disc and cam to rotate on both sides of the inner wall of the screening box. Because the cam rolls into contact with the two sets of filter screens, it causes the inclined discharge plate to vibrate up and down within the screening box. This process screens and filters the grain fed into the screening box, ensuring that grain particles pass through the filter screen into the rotary drying drum, while impurities such as straw are effectively removed and discharged. The inclined structure of the discharge plate and filter screen allows the screened straw and other impurities to be smoothly discharged. Therefore, the grain dryer designed in this solution can effectively remove impurities from the grain, improve the cleanliness of the grain drying process, and prevent impurities from entering the rotary drying drum and causing accumulation and blockage. This design enhances the flexibility and practicality of the equipment in the grain drying field. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[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 screening and feeding assembly structure of this utility model;

[0018] Figure 3 This is a plan view of the screening box of this utility model;

[0019] Figure 4 This is a schematic diagram of the filter screen structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the guide port structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the rotary dryer of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Transmission base; 2. Rotary dryer; 3. Screening and feeding assembly; 4. Screening box; 5. Transmission motor; 6. Discharge plate; 7. Filter screen; 8. Transmission disc; 9. Cam; 10. Guide slider; 11. Compression spring; 12. Guide chute; 13. Feed flange pipe; 14. Guide port; 15. Rotary drying cylinder; 16. Material discharge end cover; 17. Material inlet end cover; 18. Hot air blower; 19. Feed hopper. Detailed Implementation

[0023] 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.

[0024] Example: Refer to Figures 1 to 6This utility model provides an embodiment of a grain dryer, including a transmission base 1, a rotating dryer 2 installed on the top of the transmission base 1, a screening and feeding assembly 3 connected to the top of one end of the rotating dryer 2, the screening and feeding assembly 3 including a screening box 4, a transmission motor 5 arranged in the middle of both sides of the screening box 4, a discharge plate 6 inclinedly connected to the two sides of the screening box 4 away from the transmission motor 5, a filter screen 7 inclinedly arranged inside the screening box 4 near the discharge plate 6, a transmission disc 8 installed at the output end of both sets of transmission motors 5, and multiple sets of cams 9 arranged in a circular array around the outer periphery of the two sets of transmission discs 8. This grain dryer can screen and filter impurities such as straw mixed in the grain, which can improve the cleanliness of the grain during drying, and at the same time prevent the entry of impurities such as straw, which would cause accumulation and blockage inside the rotating drying cylinder 15.

[0025] The aperture of the filter screen 7 matches the diameter of the grain. The cam 9 and the two sides of the two sets of filter screens 7 are in rolling contact. Through the structural design of the rolling contact between the cam 9 and the two sides of the two sets of filter screens 7, when the drive motor 5 installed in the middle of both sides of the screening box 4 is powered on, it can drive the drive disc 8 and the cam 9 installed at the output end of the drive motor 5 to rotate. This can drive the two sets of inclined discharge plates 6 to shake up and down inside the screening box 4, which can screen and filter the grain put into the screening box 4. Two sets of guide sliders 10 are installed on both sides of the filter screen 7. Both ends of the guide sliders 10 are connected to compression springs 11. Guide grooves 12 are opened on the sides of the guide sliders 10 away from the compression springs 11. By installing the guide sliders 10, compression springs 11 and guide grooves 12 on both sides of the filter screen 7, the two sets of filter screens 7 can be elastically connected inside the screening box 4.

[0026] The top of the screening box 4 is connected to a feed flange pipe 13. Four sets of guide ports 14 are respectively opened on both sides of the screening box 4. The guide ports 14 are structurally matched with the guide slider 10, and the guide ports 14 and guide grooves 12 are in sliding fit. Through the sliding fit structure between the guide ports 14 and guide grooves 12, the two sets of filter screens 7 elastically connected inside the screening box 4 can vibrate under the drive of the cam 9. The rotary dryer 2 includes a rotary drying cylinder 15, which is connected to the transmission base 1 via a transmission connection. One end of the rotary drying cylinder 15 is equipped with... The material discharge end cover 16, through the structural design of the transmission connection between the rotating drying cylinder 15 and the transmission base 1, can rotate and adjust the rotating drying cylinder 15 according to the usage conditions. The screening and feeding assembly 3 includes a material discharge end cover 17. A hot air blower 18 is installed at the end of the material discharge end cover 17 away from the rotating drying cylinder 15. A feeding hopper 19 is installed on the top of the material discharge end cover 17. The feeding hopper 19 is fixedly connected to the screening box 4. By adding a hot air blower 18 to one end of the material discharge end cover 17, the inside of the rotating drying cylinder 15 can be treated with hot air.

[0027] Working Principle: This solution uses a screening and feeding assembly 3 installed at the top of one end of the rotary dryer 2. The screening and feeding assembly 3 mainly consists of a screening box 4, a drive motor 5, a discharge plate 6, and a filter screen 7. The filter screen 7 includes a guide slider 10, a compression spring 11, and a guide groove 12. When the drive motor 5 installed in the middle of both sides of the screening box 4 is powered on, it can drive the drive disc 8 and cam 9 installed at the output end of the drive motor 5 to rotate. Since the cam 9 has rolling contact with the two sides of the two sets of filter screens 7, it can drive the two sets of inclined discharge plates 6 to shake up and down inside the screening box 4, which can screen and filter the grain fed into the screening box 4. Since the aperture of the filter screen 7 matches the diameter of the grain, it can transport the grain particles to be dried to the inside of the rotary drying cylinder 15, while the straw and other impurities mixed in the grain can be filtered out. The filtered straw and other impurities can also be discharged outwards by the inclination of the discharge plate 6 and the filter screen 7.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grain dryer, comprising a transmission base (1), characterized in that: A rotary dryer (2) is installed on the top of the transmission base (1). A screening and feeding assembly (3) is connected to the top of one end of the rotary dryer (2). The screening and feeding assembly (3) includes a screening box (4). A transmission motor (5) is provided in the middle of both sides of the screening box (4). Discharge plates (6) are inclinedly connected to the two sides of the screening box (4) away from the transmission motor (5). A filter screen (7) is also inclinedly provided inside the screening box (4) near the discharge plate (6). Both sets of drive motors (5) have drive discs (8) installed at their output ends, and multiple sets of cams (9) are distributed in a circular array around the outer periphery of the two sets of drive discs (8).

2. The grain dryer according to claim 1, characterized in that: The aperture of the filter screen (7) is matched with the diameter of the grain, and the cam (9) is in rolling contact with the two sides of the two sets of filter screens (7).

3. A grain dryer according to claim 2, characterized in that: Two sets of guide sliders (10) are installed on both sides of the filter screen (7). Both ends of the guide sliders (10) are connected to compression springs (11). Guide grooves (12) are respectively opened on both sides of the guide sliders (10) away from the compression springs (11).

4. A grain dryer according to claim 3, characterized in that: The top of the screening box (4) is connected to a feed flange pipe (13). Four sets of guide ports (14) are opened on both sides of the screening box (4). The guide ports (14) are matched with the structure of the guide slider (10). The guide ports (14) and the guide groove (12) are in sliding fit.

5. A grain dryer according to claim 1, characterized in that: The rotary dryer (2) includes a rotary drying cylinder (15), which is connected to the transmission base (1) by transmission. A material discharge end cover (16) is installed at one end of the rotary drying cylinder (15).

6. A grain dryer according to claim 5, characterized in that: The screening and feeding assembly (3) includes a material discharge end cover (17), a hot air blower (18) is installed at the end of the material discharge end cover (17) away from the rotating drying cylinder (15), a feeding hopper (19) is installed on the top of the material discharge end cover (17), and the feeding hopper (19) is fixedly connected to the screening box (4).

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