Impurity removal device for primary processing of agricultural products
By combining a screening device and a blowing device, the problems of low efficiency and incomplete removal of impurities in traditional methods are solved, achieving a highly efficient and thorough removal of impurities from agricultural products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DINGFANG SPECIAL MEDICAL PURPOSE FORMULA FOOD CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional manual cleaning methods are inefficient, and mechanical equipment is not thorough in removing impurities, especially light impurities such as dust and grass clippings.
By combining a screening device and a blowing device, and utilizing the oscillation of the screen disc driven by a motor and the assistance of air force, multi-layer screening and impurity blowing are achieved, thereby improving the efficiency and accuracy of impurity removal.
It achieves efficient and thorough impurity removal from agricultural products, significantly reducing impurity content and meeting the needs of large-scale production.
Smart Images
Figure CN224157302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural product processing technology, specifically to a device for removing impurities during the initial processing of agricultural products. Background Technology
[0002] Primary processing of agricultural products refers to one-time processing that does not alter the intrinsic composition of agricultural products. Specifically, primary processing includes deseeding, purification, sorting, drying, peeling, softening, or bulk packaging of various harvested agricultural products (including textile fiber raw materials) to provide services to primary markets. In primary processing, impurity removal is a crucial step, directly affecting the quality of the agricultural products and the effectiveness of subsequent processing. With the development of agricultural modernization, agricultural output is continuously increasing, and the requirements for impurity removal efficiency and quality are also rising.
[0003] Traditional manual impurity removal methods, while ensuring a certain degree of precision, are inefficient, costly, and unsuitable for large-scale production. Some early mechanical impurity removal equipment also has shortcomings. For example, some simple screening equipment uses only a single-layer screen, which is not effective in separating impurities of different particle sizes, resulting in incomplete impurity removal. In terms of removing light impurities, some equipment lacks effective auxiliary means, and relying solely on screening cannot completely remove dust, grass clippings, etc., making it difficult to achieve the desired impurity removal effect. Utility Model Content
[0004] In order to solve the problems of low impurity removal efficiency and difficulty in removing dust and grass clippings, the purpose of this utility model is to provide an impurity removal device for the initial processing of agricultural products.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a purification device for primary processing of agricultural products, comprising a frame, a feeding hopper fixedly installed on the upper surface of the frame, a screening device fixedly installed at the lower end of the feeding hopper, a blowing device fixedly connected to one side of the frame, the screening device comprising a sieve disc, a first sieve plate and a second sieve plate fixedly installed on the upper surface of the sieve disc, connecting rods symmetrically and rotatably connected to both outer surfaces of the sieve disc, the upper ends of the connecting rods being rotatably connected to one side of the frame, a first motor fixedly installed on one outer surface of the frame, rotating shafts symmetrically and rotatably connected to one side of the frame, a transmission shaft rotatably connected to one end of the rotating shafts, one end of the transmission shaft being rotatably connected to the lower surface of the sieve disc, a first pulley fixedly sleeved on the output end of the first motor and one end of one of the rotating shafts, and a first synchronous belt fixedly sleeved on the outer surface of the first pulley.
[0006] Preferably, the blower includes a housing, with connecting plates fixedly connected to both sides of the housing. The upper end of the connecting plates is fixedly connected to a frame. An air outlet is provided at one end of the housing. A wind-generating paddle is rotatably provided inside the housing. A second motor is fixedly installed on the outer surface of the frame near the first motor. A second pulley is fixedly sleeved on the output end of the second motor and one end of the wind-generating paddle. A second synchronous belt is fixedly sleeved on the outer surface of the second pulley.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. This utility model utilizes a combination of a screening device and a blowing device. A first motor drives a rotating shaft to rotate via a first pulley and a first synchronous belt. This, in turn, uses an eccentrically positioned transmission shaft to cause the screen disc to reciprocate. The multi-layered screen plates work in conjunction with the screen disc's movement to improve screening efficiency and accuracy. The blowing device, driven by a second motor, generates airflow through a blower. The air blown from the outlet can remove light impurities from agricultural products, such as dust and grass clippings. This serves as an auxiliary means of impurity removal, working in conjunction with the screening process to further enhance the comprehensiveness and thoroughness of impurity removal, resulting in agricultural products with even lower impurity content. Attached Figure Description
[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the screening device of this utility model.
[0012] Figure 3 This is a schematic diagram of the structure of the blower device of this utility model.
[0013] In the diagram: 11. Frame; 12. Feed hopper; 13. Screening device; 14. Blowing device; 15. Screen plate; 16. First screen plate; 17. Second screen plate; 18. Slide rail; 19. Connecting rod; 20. Rotating shaft; 21. Drive shaft; 22. First motor; 23. First pulley; 24. First synchronous belt; 25. Housing; 26. Air outlet; 27. Blower; 28. Connecting plate; 29. Second motor; 30. Second pulley; 31. Second synchronous belt. Detailed Implementation
[0014] 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.
[0015] Example: Figure 1-3 As shown, this utility model provides a device for removing impurities in the initial processing of agricultural products. The device includes a frame 11, a feeding hopper 12 fixedly installed on the upper surface of the frame 11, a screening device 13 fixedly installed at the lower end of the feeding hopper 12, and a blowing device 14 fixedly connected to one side of the frame 11. The screening device 13 includes a screen plate 15, which is set at an inclined angle to allow the material to slide naturally down the screen plate by gravity, thereby accelerating the screening process and improving work efficiency. A first screen plate 16 and a second screen plate 17 are fixedly installed on the upper surface of the screen plate 15. The feeding hopper 12 is located above the first screen plate 16, and a discharge port is opened at the lower end of the feeding hopper 12, which allows the agricultural products to fall onto the screen plate in a concentrated and stable manner, ensuring orderly feeding and improving the impurity removal efficiency.
[0016] The first sieve plate 16 is located above the second sieve plate 17. Multiple screening grooves are provided on the outer surfaces of both the first sieve plate 16 and the second sieve plate 17, which can perform multi-level screening of agricultural products. Impurities and agricultural products of different particle sizes can be separated on different sieve plates, improving screening accuracy and efficiency. A slide 18 is provided on one side of the first sieve plate 16, and the inner surface of the slide 18 is set at an inclined angle. A discharge port is provided on one side of the sieve plate 15 to cooperate with the slide 18. The inner surface of the slide 18 on the first sieve plate 16 is inclined and cooperates with the discharge port of the sieve plate 15, which facilitates the discharge of larger impurities left on the first sieve plate 16 and avoids the accumulation of impurities affecting screening.
[0017] Both outer surfaces of the screen disc 15 are symmetrically connected to connecting rods 19. The upper end of the connecting rod 19 is rotatably connected to one side of the frame 11. A first motor 22 is fixedly installed on one outer surface of the frame 11. A rotating shaft 20 is symmetrically connected to one side of the frame 11. One end of the rotating shaft 20 is rotatably connected to a transmission shaft 21. One end of the transmission shaft 21 is located at the eccentric position of one end of the two rotating shafts 20, so that when the rotating shaft 20 rotates, it can drive the screen disc 15 to reciprocate, enhance the screening effect, make the material more evenly distributed, and increase the contact opportunity between the material and the screen holes. One end of the transmission shaft 21 is rotatably connected to the lower surface of the screen disc 15. The output end of the first motor 22 and one end of one of the rotating shafts 20 are fixedly sleeved with a first pulley 23. A first synchronous belt 24 is fixedly sleeved on the outer surface of the first pulley 23. The first motor 22 drives the rotating shaft 20 to rotate through the first pulley 23 and the first synchronous belt 24, and then uses the eccentrically set transmission shaft 21 to make the screen disc 15 reciprocate.
[0018] The blower device 14 includes a housing 25, with connecting plates 28 fixedly connected to both sides of the housing 25. The upper end of the connecting plates 28 is fixedly connected to the frame 11. An air outlet 26 is opened at one end of the housing 25. A wind-driving paddle 27 is rotatably mounted inside the housing 25. A second motor 29 is fixedly mounted on the outer surface of the frame 11 near the first motor 22. A second pulley 30 is fixedly sleeved on both the output end of the second motor 29 and one end of the wind-driving paddle 27. The outer surfaces of both the first pulley 23 and the second pulley 30 are treated with anti-slip material. The outer surface of the pulley 30 is treated with anti-slip material to increase friction and prevent the synchronous belt from slipping during transmission, ensuring effective and stable power transmission and guaranteeing normal operation of the equipment. The outer surface of the second pulley 30 is fixedly fitted with the second synchronous belt 31. The blower 27 generates wind during rotation, and the wind is blown out from the air outlet 26 opened at one end of the housing 25. The blown wind acts on the agricultural products being screened, blowing away light impurities such as dust and grass clippings, thereby assisting the entire impurity removal process and working in conjunction with the screening device 13 to achieve a more comprehensive impurity removal effect.
[0019] Working principle: Agricultural products enter the device through the feed hopper 12, which is located above the first screen plate 16. The feed hopper 12 has a discharge port at its lower end, allowing agricultural products to fall onto the first screen plate 16. When the agricultural products fall onto the first screen plate 16, smaller impurities and agricultural product particles that meet the size requirements will fall through the screening groove of the first screen plate 16 to the second screen plate 17 for further screening. Larger impurities and agricultural products that do not pass through the first screen plate 16 remain on the first screen plate 16. After the first motor 22 starts, its output end drives the first pulley 23, which is fixedly sleeved with it, to rotate. The first pulley 23 drives the other first pulley 23 to rotate through the first synchronous belt 24, thereby causing the rotating shaft 20 to rotate. Since one end of the transmission shaft 21 is rotatably connected to the lower surface of the screen plate 15 and the other end is rotatably connected to the two rotating shafts 20, and is located at the eccentric point between the two rotating shafts 20, the rotation of the rotating shaft 20 will drive the screen plate 15 to reciprocate through the transmission shaft 21, which will enhance the screening effect and enable agricultural products and impurities to be separated more effectively through the screening tank. During the shaking process, larger impurities left on the first screen plate 16 will be discharged from the screen plate 15 through the slide 18 and the discharge port.
[0020] After the second motor 29 is started, it drives the second pulley 30, which is fixedly connected to it, to rotate. The second pulley 30 drives another second pulley 30 to rotate through the second synchronous belt 31, thereby causing the blower 27 to rotate and generate wind. The wind is blown out from the air outlet 26 to blow away the agricultural products being screened, removing light impurities such as dust and grass clippings, and further achieving the purpose of impurity removal.
[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A device for removing impurities during the initial processing of agricultural products, comprising a frame (11), characterized in that: A feeding hopper (12) is fixedly installed on the upper surface of the frame (11), a screening device (13) is fixedly installed at the lower end of the feeding hopper (12), and a blowing device (14) is fixedly connected to one side of the frame (11). The screening device (13) includes a screen disc (15). A first screen plate (16) and a second screen plate (17) are fixedly installed on the upper surface of the screen disc (15). Connecting rods (19) are symmetrically rotatably connected to both outer surfaces of the screen disc (15). The upper end of the connecting rod (19) is rotatably connected to one side of the frame (11). A first motor (22) is fixedly installed on one outer surface of the frame (11). A rotating shaft (20) is symmetrically rotatably connected to one side of the frame (11). A transmission shaft (21) is rotatably connected to one end of the rotating shaft (20). One end of the transmission shaft (21) is rotatably connected to the lower surface of the screen disc (15). A first pulley (23) is fixedly sleeved on the output end of the first motor (22) and one end of one of the rotating shafts (20). A first synchronous belt (24) is fixedly sleeved on the outer surface of the first pulley (23).
2. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The blowing device (14) includes a housing (25), with connecting plates (28) fixedly connected to both sides of the housing (25). The upper end of the connecting plate (28) is fixedly connected to the frame (11). An air outlet (26) is opened at one end of the housing (25). A wind-driving paddle (27) is rotatably provided inside the housing (25). A second motor (29) is fixedly installed on the outer surface of the frame (11) near the first motor (22). A second pulley (30) is fixedly sleeved on the output end of the second motor (29) and one end of the wind-driving paddle (27). A second synchronous belt (31) is fixedly sleeved on the outer surface of the second pulley (30).
3. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The first sieve plate (16) is located above the second sieve plate (17), and multiple screening grooves are provided on the outer surfaces of both the first sieve plate (16) and the second sieve plate (17).
4. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The first screen plate (16) has a slide (18) on one side, and the inner surface of the slide (18) is set at an inclined angle. The screen plate (15) has a discharge port on one side that is used in conjunction with the slide (18).
5. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, One end of the drive shaft (21) is located at the eccentric position of one end of the two rotating shafts (20).
6. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The feed hopper (12) is located above the first screen plate (16), and the feed hopper (12) has a discharge port at its lower end.
7. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The outer surfaces of the first pulley (23) and the second pulley (30) are both treated with anti-slip treatment.
8. The impurity removal device for primary processing of agricultural products as described in claim 1, characterized in that, The sieve plate (15) is set at an inclined angle.