Efficient wheat seed screening and separating device

Abstract

The utility model discloses an efficient wheat seed screening and separating device, relates to the technical field of seed screening, and aims to solve the problem that impurities, such as light chippings or empty shell seeds, which are similar in density but different in weight are difficult to effectively separate only depending on mechanical vibration. Two sets of symmetrical conveying rollers are rotationally connected into the conveying channel, the two sets of conveying rollers are connected through a conveying belt, and the conveying rollers are driven by a motor. A discharging port is formed below the right side end of the conveying belt, and a removing mechanism is arranged under the conveying belt. Through the synergistic effect of vibrating screen holes of the conveying belt and directional airflow blowing, double screening of particle size screening (small particles fall down through the screen holes) and density screening (light impurities are raised by airflow) is achieved, and particularly wet materials with the high impurity rate are screened; a Z-shaped ascending channel is formed through the staggered drainage plates, three-time separation of impurities is achieved through the wind attenuation gradient, and the problem that single-stage separation of traditional equipment is not thorough is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of seed screening technology, and in particular to a high-efficiency wheat seed screening and separation device. Background Technology

[0002] In the field of agricultural material screening, traditional wheat seed screening equipment mostly uses vibrating screen structure to achieve particle grading. Existing screening devices have the following problems: it is difficult to effectively separate impurities with similar density but different weights by relying solely on mechanical vibration, such as light debris or empty seeds; the screen holes are easily blocked by moist materials, resulting in a sharp drop in screening efficiency.

[0003] Therefore, this application provides a high-efficiency wheat seed screening and separation device to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a high-efficiency wheat seed screening and separation device, which aims to solve the problem that it is difficult to effectively separate impurities with similar densities but different weights, such as light debris or empty seeds, by simply relying on mechanical vibration.

[0005] To achieve the above objectives, this application provides the following technical solution: a high-efficiency wheat seed screening and separation device, comprising a conveying channel, conveyor rollers, a conveyor belt, and a motor. The conveying channel has an opening, and a feeding hopper is provided on the left side of the conveying channel. A screening mechanism is provided next to the feeding hopper. Two sets of symmetrical conveyor rollers are rotatably connected inside the conveying channel. The two sets of conveyor rollers are connected by a conveyor belt, and the conveyor rollers are driven by a motor. A discharge port is provided below the right end of the conveyor belt, and a removal mechanism is provided directly below the conveyor belt.

[0006] The conveyor belt is equipped with sieve holes.

[0007] Preferably, the screening mechanism includes a blower and air duct, a fan, a screening cover, and a guide plate. The blower is located between two sets of conveying rollers. The blower has a chamber structure and multiple sets of air holes connecting the chambers are provided on the top surface of the blower. A fan is provided on the outer wall of the conveying channel, and the fan is connected to the blower through the air duct.

[0008] The screening cover is installed on the top surface of the conveying channel, and a drainage hole communicating with the outside is provided on the inner wall of the screening cover, and an inclined drainage plate is provided below the drainage hole.

[0009] Preferably, there are two sets of drainage holes, which are staggered.

[0010] Preferably, the two sets of drainage plates are staggered.

[0011] Preferably, the outer wall of the screening hood is provided with a collection element, which is pocket-shaped and adapted to the drainage hole. A feed pipe communicating with the outside is provided on the bottom surface of the collection element.

[0012] Preferably, the removal mechanism includes a support block and a feed plate. Multiple waste ports communicating with the outside are provided on the bottom surface of the conveying channel, and a support block is provided on one side of the waste port. A feed plate is provided on the top surface of the support block. The feed plate is inclined and the top of the feed plate is slidably connected to the conveyor belt. The bottom of the feed plate passes through the waste port.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] This invention achieves dual screening of particle size (smaller particles fall through the screen holes) and density (light impurities are lifted by the airflow) through the synergistic effect of the conveyor belt vibrating screen holes and the directional airflow, especially for wet materials with high impurity content.

[0015] This invention forms a Z-shaped upward channel by staggered diversion plates, and achieves three-stage separation of impurities (airflow initial screening → collision separation → sliding collection) through wind force attenuation gradient, effectively solving the problem of incomplete single-stage separation in traditional equipment.

[0016] This invention utilizes an inclined feed plate to form a wedge-shaped scraping structure with the bottom surface of the conveyor belt, which continuously peels away embedded materials during equipment operation. This, combined with the waste outlet, forms an uninterrupted automatic cleaning channel, extending the working cycle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the internal structure of the screening cover of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0021] Figure 4 This is a partial structural schematic diagram of the present invention;

[0022] Figure 5 This is a schematic diagram of the blower component structure of this utility model;

[0023] Figure 6 This is a partial cross-sectional structural diagram of the present invention.

[0024] In the diagram: 1. Conveying channel; 2. Conveying roller; 3. Conveyor belt; 4. Blower; 5. Air duct; 6. Fan; 7. Screening cover; 70. Drainage hole; 8. Drainage plate; 9. Collector; 10. Feed pipe; 11. Discharge port; 12. Waste port; 13. Support block; 14. Feed plate. Detailed Implementation

[0025] 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.

[0026] Example: Reference Figure 1-6 The high-efficiency wheat seed screening and separation device shown includes a conveying channel 1, conveying rollers 2, and a conveyor belt 3. The top of the conveying channel 1 is provided with an opening, and two sets of conveying rollers 2 are rotatably connected inside the conveying channel 1. The two sets of conveying rollers 2 are connected by a set of conveyor belts 3. In order to concentrate the feeding, a feeding hopper is provided on the top left side of the conveying channel 1, and a screening cover 7 is provided on the right side of the feeding hopper (top surface of the conveying channel 1).

[0027] In order to screen and separate materials, a set of discharge ports 11 for discharging qualified materials is provided at the bottom right side of the conveying channel 1, and at least two sets of waste ports 12 are provided on the left side of the discharge ports 11.

[0028] A screening mechanism for screening materials is provided inside the conveying channel 1, and the screen holes provided on the conveyor belt 3 cooperate with the screening mechanism to screen the materials.

[0029] The removal mechanism provided between the conveying channel 1 and the conveyor belt 3 is used to peel off the material attached to the conveyor belt 3 and discharge the peeled material through the waste port 12.

[0030] As one implementation method in this embodiment, the screening mechanism has at least two sets of air blowing elements 4 on the inner wall of the conveying channel 1, and the air blowing elements 4 are located between the conveyor belts 3 (e.g., Figure 4 , 5As shown), a set of fans 6 is provided on the outer wall of the conveying channel 1, and the fans 6 are connected to the blowing component 4 through the air duct 5. The internal chamber of the blowing component 4 is interconnected with the air duct 5, and the top of the blowing component 4 is provided with an air hole that communicates with the outside. When in use, the air generated by the fans is discharged from the air hole and passes through the conveyor belt 3, blowing air onto the material located on the conveyor belt 3, causing the lighter and defective materials to be blown up. Under the action of the rising airflow, the defective materials come into contact with the inclined surface at the bottom of the guide plate 8 and pass through the guide plate 8. After the air force decreases, the defective materials fall down. Due to the staggered arrangement of the two sets of guide plates 8 and the existence of an intersection area in the middle (such as...), the material is discharged. Figure 2 As shown), the defective material slides down the inclined surface at the top of the guide plate 8 and is discharged through the guide hole 70 on the inner wall of the screening hood 7.

[0031] As one embodiment of this invention, in order to centrally process the material discharged from the drainage hole 70, a collection element 9 is provided on the outer wall of the screening cover 7. The collection element 9 is pocket-shaped, and a feed pipe 10 (e.g., ...) is provided at the bottom of the collection element 9. Figure 2 , 3 As shown in the figure, defective materials can be centrally processed.

[0032] As one embodiment of this invention, the removal mechanism is as follows: at least two sets of support blocks 13 are provided between the conveying channel 1 and the conveyor belt 3, and an inclined guide plate 14 is provided on the top surface of the support block 13. The top end of the guide plate 14 is slidably connected to the bottom surface of the conveyor belt 3, and the bottom end of the guide plate 14 passes through the waste port 12. Through the above structural design, the material attached to and stuck on the conveyor belt 3 is peeled off and guided out from the waste port for centralized processing.

[0033] The working principle of this utility model is as follows: Wheat seeds are fed into the conveying channel 1 from the feed hopper, and then the motor is started. The motor drives a set of conveyor rollers 2 to rotate in the conveying channel 1, which in turn drives the conveyor belt 3 mounted on the conveyor rollers 2 to move. During the movement, the wheat seeds are initially screened through the holes on the conveyor belt 3 and the vibration of the equipment. Smaller unqualified wheat seeds fall through the holes onto the feed plate 14 and are discharged from the waste port 12 at the bottom through the inclined surface of the feed plate 14.

[0034] During this process, the blower 6 operates, delivering airflow through the air duct 5 into the chamber of the blower 4, and blowing the gas out through the air outlet on the blower 4 to screen the wheat seeds located on the conveyor belt 3. Unqualified wheat seeds fly up under the action of the airflow, and continue to rise along the two sets of guide plates 8 on the inner wall of the screening cover 7. After rising to a certain height and the wind force weakens, the unqualified wheat seeds fall onto the guide plates 8 and flow into the guide hole 70 along the inclined surface. Then, they enter the collection device 9 and are discharged from the feed pipe 10. Waste is collected by fitting a collection bag at the outlet of the feed pipe 10. Qualified wheat seeds move towards the discharge port 11 under the drive of the conveyor belt 3, completing the screening task.

[0035] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0036] Components not described in detail in this article are existing technologies.

[0037] 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 high-efficiency wheat seed screening and separation device, characterized in that: Includes a conveying channel (1), conveying rollers (2), a conveyor belt (3), and a motor. The conveying channel (1) has an opening, and a feeding hopper is provided on the left side of the conveying channel (1). A screening mechanism is provided on one side of the feeding hopper. Two sets of symmetrical conveying rollers (2) are rotatably connected inside the conveying channel (1). The two sets of conveying rollers (2) are connected by the conveyor belt (3), and the conveying rollers (2) are driven by a motor. A discharge port (11) is provided below the right end of the conveyor belt (3), and a removal mechanism is provided directly below the conveyor belt (3). The conveyor belt (3) is provided with sieve holes.

2. The high-efficiency wheat seed screening and separation device according to claim 1, characterized in that: The screening mechanism includes a blower (4), an air duct (5), a fan (6), a screening cover (7), and a guide plate (8). The blower (4) is located between two sets of conveying rollers (2). The blower (4) has a chamber structure and multiple sets of air holes connecting the chamber are provided on the top surface of the blower (4). A fan (6) is provided on the outer wall of the conveying channel (1). The fan (6) is connected to the blower (4) through the air duct (5). The screening cover (7) is installed on the top surface of the conveying channel (1), and a drainage hole (70) communicating with the outside is provided on the inner wall of the screening cover (7), and an inclined drainage plate (8) is provided below the drainage hole (70).

3. The high-efficiency wheat seed screening and separation device according to claim 2, characterized in that: The drainage holes (70) are provided in two sets and are staggered.

4. The high-efficiency wheat seed screening and separation device according to claim 2, characterized in that: The two sets of drainage plates (8) are staggered.

5. The high-efficiency wheat seed screening and separation device according to claim 2, characterized in that: The outer wall of the screening cover (7) is provided with a collection element (9), which is pocket-shaped and is adapted to the drainage hole (70). A feed tube (10) communicating with the outside is provided on the bottom surface of the collection element (9).

6. The high-efficiency wheat seed screening and separation device according to claim 1, characterized in that: The removal mechanism includes a support block (13) and a feed plate (14). Multiple waste ports (12) communicating with the outside are provided on the bottom surface of the conveying channel (1). A support block (13) is provided on one side of the waste port (12). A feed plate (14) is provided on the top surface of the support block (13). The feed plate (14) is inclined. The top of the feed plate (14) is slidably connected to the conveyor belt (3). The bottom of the feed plate (14) passes through the waste port (12).

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