An agricultural product grading and screening integrated device

Abstract

The utility model relates to agricultural product processing technical field, concretely is a kind of agricultural product grading and screening integrated device, including rack, still including roller, roller rotation is arranged on rack, and the inner wall of roller is fixedly connected with large aperture screen and small aperture screen respectively;The inner wall of winnowing box is fixedly connected with guide vane, and the lower surface of winnowing box is provided with heavy material outlet and light material outlet respectively, and the side of winnowing box is provided with fan, and the below of heavy material outlet and light material outlet is provided with material hopper two;The utility model integrates two processes of roller screening and air selection, realizes automatic continuous sorting, solves the problem that the existing grading and screening equipment function is single, degree of automation is low, needs multiple equipment series connection to lead to the problem of large floor area.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing technology, and in particular to an integrated device for grading and screening agricultural products. Background Technology

[0002] Grading and sorting harvested agricultural products is a key step in ensuring product quality and increasing commodity value.

[0003] Traditional grading and screening methods mostly rely on manual or simple mechanical screening, which suffers from problems such as low efficiency, high labor intensity, and low sorting accuracy.

[0004] In the existing technology, there are some grading and screening devices, but they are usually single-function, either only grading by size or only air-separating by weight (or density), and cannot continuously complete multi-level sorting on a single device. If multiple processes need to be completed, multiple devices need to be connected in series, resulting in large equipment footprint, high energy consumption, and the materials are prone to secondary pollution and damage during transfer.

[0005] Therefore, there is an urgent need for an integrated device that is highly integrated and automated and can continuously complete multi-dimensional sorting. Utility Model Content

[0006] The purpose of this invention is to provide an integrated device for grading and screening agricultural products to solve the problems mentioned in the background art.

[0007] The technical solution of this utility model is: an integrated device for grading and screening agricultural products, including a frame, and further comprising:

[0008] A drum is rotatably mounted on a frame, and a large-aperture screen and a small-aperture screen are fixedly connected to the inner wall of the drum respectively;

[0009] An air classifier is provided, wherein a guide plate is fixedly connected to the inner wall of the air classifier, and a heavy material outlet and a light material outlet are respectively provided on the lower surface of the air classifier. A fan is provided on one side of the air classifier, and a collection hopper is provided below both the heavy material outlet and the light material outlet.

[0010] In some embodiments, a first gear is fixedly connected to the surface of the roller, a rotating shaft is rotatably connected to the frame, and a second gear is fixedly connected to the surface of the rotating shaft, with the first gear and the second gear meshing with each other.

[0011] In some embodiments, a motor is fixedly mounted on one end of the rotating shaft, the second gear is driven by the motor, and a feeding notch is provided at one end of the roller.

[0012] In some embodiments, a first hopper is provided on the frame, the first hopper is located below the end of the drum, and the fan is fixedly installed on the frame.

[0013] In some embodiments, the output end of the fan is fixedly connected to a duct, and one end of the duct is fixedly connected to one side of the air separator.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] This invention uses a sieve to collect materials graded by screens in corresponding areas below the drum. Larger materials that fail to pass through the sieve are discharged through a discharge notch at the end of the drum. The discharged material falls into an air separator, where a blower blows airflow through ducts. The materials are separated according to density and weight: lighter materials are blown towards the lighter material outlet, while heavier materials fall to the heavier material outlet due to gravity. Below both the heavy and light material outlets are collection hoppers to collect the heavy and light materials respectively. Thus, agricultural products, after size grading and air separation, are divided into multiple grades, achieving integrated sorting. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the air separator provided in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the roller cutting structure provided in one embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Frame; 2. Drum; 3. Hopper 1; 4. Hopper 2; 5. Fan; 6. Air duct; 7. Air separator; 8. Heavy material outlet; 9. Light material outlet; 10. Baffle plate; 11. Large aperture screen; 12. Small aperture screen; 13. Gear 1; 14. Gear 2; 15. Motor. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an integrated device for grading and screening agricultural products through improvements. The technical solution of this utility model is as follows:

[0024] like Figures 1-3 As shown, an integrated agricultural product grading and screening device includes a frame 1, which serves as the supporting structure for the entire device. The frame 1 is preferably welded from carbon steel profiles, possessing sufficient structural strength and stability. Its surface can be treated with anti-rust paint to adapt to the potentially humid environment of agricultural product processing workshops. The device also includes:

[0025] Roller 2 is rotatably mounted on frame 1 via bearing seats. The cylinder of roller 2 can be made of food-grade stainless steel sheet. Roller 2 is rotatably mounted on frame 1, and its inner wall is fixedly connected to a large-aperture screen 11 and a small-aperture screen 12. The screens are preferably perforated stainless steel plates or woven mesh, possessing good rigidity and resistance to clogging. The screens can be arranged in sections within roller 2, for example, with a small-aperture screen 12 at the feed end and a large-aperture screen 11 at the discharge end, or in a staggered arrangement to achieve multi-stage precise screening.

[0026] The air classifier 7 can be made of transparent or semi-transparent engineering plastics (such as polycarbonate) to facilitate observation of the internal air classification process. The inner wall of the air classifier 7 is fixedly connected with a guide plate 10. The lower surface of the air classifier 7 is respectively provided with a heavy material outlet 8 and a light material outlet 9. A fan 5 is provided on one side of the air classifier 7. A collection hopper 2 4 is provided below both the heavy material outlet 8 and the light material outlet 9.

[0027] like Figure 3 As shown, in one embodiment, a gear 13 is fixedly connected to the surface of the roller 2, and a rotating shaft is rotatably connected to the frame 1. A gear 24 is fixedly connected to the surface of the rotating shaft, and the gear 13 and the gear 24 mesh with each other.

[0028] A motor 15 is fixedly mounted on one end of the rotating shaft, and gear 14 is driven by the motor 15. A discharge notch is provided at one end of the drum 2. The motor 15 is preferably a speed-regulating motor 15, which is electrically connected to the control circuit through a driver (such as a frequency converter), allowing the operator to adjust the rotation speed of the drum 2 according to the characteristics of different agricultural products (such as fragility and moisture content), thereby optimizing the screening effect and efficiency. The discharge notch at the end of the drum 2 is used to discharge the largest size material that remains inside the drum 2 after screening.

[0029] like Figure 2 As shown, in one embodiment, a material collection hopper 3 is provided on the frame 1, and the material collection hopper 3 is located below the end of the drum 2. The fan 5 is fixedly installed on the frame 1.

[0030] The output end of the fan 5 is fixedly connected to the air duct 6. One end of the air duct 6 is fixedly connected to one side of the air separator 7. The fan 5 is preferably a centrifugal fan 5, which is fixedly installed on the frame 1. Its air volume and air pressure can be controlled by adjusting the air inlet baffle or the speed of the motor 15.

[0031] The specific working method is as follows: agricultural products are fed into the feed end of drum 2. Drum 2 rotates under the drive of motor 15 through the meshing of gear 13 and gear 14;

[0032] The inner wall of the drum 2 is fixed with a large-aperture screen 11 and a small-aperture screen 12. During the rotation of the drum 2, the agricultural products tumble with the drum 2. Small-sized materials fall through the small-aperture screen 12 first, medium-sized materials fall through the large-aperture screen 11, and large-sized materials move along the axial direction of the drum 2.

[0033] Materials graded by the screen are collected in the corresponding areas below the drum 2, while large-sized materials that do not pass through the screen are finally discharged from the discharge notch at the end of the drum 2.

[0034] The material discharged from the discharge opening falls into the air classifier 7. The blower 5 blows air into the air classifier 7 through the air duct 6. The airflow forms a uniform air field under the guidance of the guide plate 10.

[0035] Inside the air separator 7, materials are separated according to density and weight: light materials are blown by airflow to the light material outlet 9, while heavy materials fall to the heavy material outlet 8 due to gravity.

[0036] Below both the heavy material outlet 8 and the light material outlet 9, there are two collection hoppers 4 to collect heavy and light materials respectively. Thus, agricultural products, after size grading and air separation, are divided into multiple grades, achieving integrated sorting.

[0037] The entire device works in coordination with motor 15 and fan 5 to achieve automated continuous operation. Users can adjust the rotation speed of drum 2, the air volume of fan 5, or the screen aperture according to the characteristics of agricultural products to optimize the sorting effect.

[0038] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An integrated device for grading and screening agricultural products, comprising a frame (1), characterized in that, Also includes: A drum (2) is rotatably mounted on a frame (1), and a large-aperture screen (11) and a small-aperture screen (12) are fixedly connected to the inner wall of the drum (2); An air classifier (7) is provided with a guide plate (10) fixedly connected to the inner wall of the air classifier (7). The lower surface of the air classifier (7) is provided with a heavy material outlet (8) and a light material outlet (9). A blower (5) is provided on one side of the air classifier (7). A collection hopper (4) is provided below both the heavy material outlet (8) and the light material outlet (9).

2. The integrated agricultural product grading and screening device according to claim 1, characterized in that: Gear 1 (13) is fixedly connected to the surface of the roller (2), and a rotating shaft is rotatably connected to the frame (1). Gear 2 (14) is fixedly connected to the surface of the rotating shaft, and Gear 1 (13) and Gear 2 (14) mesh with each other.

3. The integrated agricultural product grading and screening device according to claim 2, characterized in that: A motor (15) is fixedly installed at one end of the rotating shaft, and the gear (14) is driven by the motor (15). A feeding notch is provided at one end of the roller (2).

4. The integrated agricultural product grading and screening device according to claim 3, characterized in that: The frame (1) is provided with a material collection hopper (3), which is located below the end of the drum (2), and the fan (5) is fixedly installed on the frame (1).

5. The integrated agricultural product grading and screening device according to claim 4, characterized in that: The output end of the fan (5) is fixedly connected to the air duct (6), and one end of the air duct (6) is fixedly connected to one side of the air separator (7).

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