CN221694337U - Alfalfa seed edulcoration screening plant - Google Patents

Abstract

The present application discloses an alfalfa seed impurity removal and screening device, and relates to the seed screening technical field. The technical key points are: it comprises a screening box, an impurity collection box is provided on the lower side of the screening box, an adding funnel is provided on the upper side of the screening box, and the adding funnel is installed on the top plate of the screening box; an opening is provided on the top of the screening box, and a blowing device is provided on one side of the screening box; a conveying funnel is installed in the impurity collection box, and the lower port of the conveying funnel passes through the bottom plate of the impurity collection box. The present application supplies air into the screening box and utilizes the weight difference between normal alfalfa seeds and impurities to perform impurity removal and screening. Compared with the prior art, even if the volume of the impurities is close to the volume of alfalfa seeds in an ideal state, they will be screened out, thereby effectively improving the screening effect of alfalfa seeds.

Description

Alfalfa seed impurity removal and screening device

Technical Field

The present application relates to the technical field of seed screening, and in particular to an alfalfa seed impurity removal and screening device.

Background Art

Alfalfa is a perennial legume forage grass with the largest cultivated area in the world. Its crude protein content accounts for about 20% of dry matter. It is rich in carbohydrates, mineral elements and microorganisms and enjoys the reputation of "king of forage grass". The north is suitable for large-scale planting of alfalfa, with multiple benefits from one sowing. Alfalfa, a legume forage grass, can fix nitrogen during its growth process, thereby maintaining water and soil. Farmland planted with alfalfa retains a large amount of root stubble in the soil. These root stubble can be used as organic fertilizer for the soil during the cultivation process, thereby changing the physical and chemical properties of the farmland, improving the quality of the farmland, and improving the yield and quality of subsequent crops planted on the farmland.

As forage, alfalfa is more palatable and of higher quality than other forage grasses, including all grasses, seed-based energy feeds and straw. Feeding dairy cows with alfalfa can increase milk production by more than 50%. In addition to being forage, the flowers that bloom during the growth process of alfalfa are also an important source of honey. Large-scale planting can also promote honey collection and develop the beekeeping industry.

Alfalfa seeds need to be processed before sowing to ensure that they reach the best sowing state. The treatment of alfalfa seeds before sowing includes impurity screening, seed disinfection, hardness treatment and rhizobium inoculation. The main purpose of the magazine screening stage is to remove galls, weed seeds, alfalfa seeds with incomplete particles and other impurities in the alfalfa seeds. At present, the alfalfa seed screening method is mostly through a sieve, so that impurities whose diameter does not match the ideal alfalfa seeds are separated by the sieve, but the difference between alfalfa seeds and the impurities inside them is mostly reflected in weight. Impurities with a volume similar to the full and ideal alfalfa seeds are difficult to separate when removing impurities through a sieve.

Utility Model Content

The present application provides an alfalfa seed impurity removal and screening device, which can separate the alfalfa seeds from the impurities by utilizing the weight difference between the alfalfa seeds and the impurities inside the alfalfa seeds, thereby improving the impurity removal effect of the alfalfa seeds.

The above-mentioned purpose of the present application is achieved through the following technical solutions:

An alfalfa seed impurity removal and screening device comprises a screening box, an impurity collecting box is arranged at the lower side of the screening box, the impurity collecting box is installed on a supporting frame, an adding funnel is arranged above the screening box, and the adding funnel is installed on the top plate of the screening box through a fixing bracket;

The top of the screening box is provided with an opening, and the opening of the screening box is facing the lower port of the adding funnel. A blowing device is provided on one side of the screening box, and the blowing device can blow air into the screening box along its length direction;

A conveying funnel is fixedly installed in the impurity collecting box, and a lower port of the conveying funnel penetrates the bottom plate of the impurity collecting box; the conveying funnel is located in the impurity collecting box on the side of the adding funnel away from the blowing device.

Furthermore, the blowing device is a blower, which is fixedly mounted on the outer wall of the screening box through an extension plate, and the air outlet of the blower passes through the side wall of the screening box on the adjacent side and extends to the interior of the screening box, and the air outlet of the blower is facing the other side wall of the screening box in the length direction.

Furthermore, a ventilation filter is installed on the side wall of the screening box away from the blower.

Furthermore, a salt selection tank is provided below the impurity collection box.

Furthermore, a partition is provided in the middle of the salt selection pool, and the partition divides the interior of the salt selection pool into two independent spaces, and one of the spaces in the salt selection pool is opposite to the lower port of the transfer funnel.

Furthermore, a water filter frame is placed in the salt selection pool, and a handle is provided on the top of the water filter frame.

Furthermore, a movable door that can be opened and closed freely is provided on one side wall of the impurity collection box.

In summary, the present application includes at least one of the following beneficial technical effects:

After the grower adds the alfalfa seeds that need to be removed from the adding funnel, the alfalfa seeds will fall along the adding funnel to the screening box. At this time, the blowing device continues to blow air toward the screening box. The wind will produce a certain lateral force on the falling alfalfa seeds in the screening box. The heavier impurities in the alfalfa seeds will not be displaced too much after being subjected to the lateral wind force, and the approximate trajectory of the fall is still a straight line. These impurities will fall downward into the impurity collection box. The lighter impurities in the alfalfa seeds will float to the side wall of the screening box away from the blowing device after being subjected to the lateral wind force, and also fall into the impurity collection box along the side wall of the screening box. The ideal alfalfa seeds will be deviated to the direction of wind flow after being affected by lateral wind force, but will not float too far like lighter impurities. Under the action of their own gravity and lateral wind force, they will fall to the top of the conveying funnel along a parabolic trajectory. In this way, growers can collect alfalfa seeds that meet the requirements at the bottom of the conveying funnel. The screening device of the present application screens the alfalfa seeds according to the weight difference between the alfalfa seeds and the impurities. Even if the volume of the impurities is close to the volume of the ideal alfalfa seeds, they will be screened out, thereby effectively improving the screening effect of the alfalfa seeds.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the overall structure of the present application;

FIG2 is a schematic diagram of the internal structure of the screening box and the impurity collection box of the present application;

FIG3 is a schematic diagram of the structure after the water filter frame of the present application is taken out from the salt selection tank.

Figure numerals: 1. Screening box; 2. Impurity collection box; 3. Support frame; 4. Adding funnel; 5. Fixed bracket; 6. Blowing equipment; 7. Conveying funnel; 8. Extension plate; 9. Ventilation filter; 10. Salt selection pool; 11. Partition; 12. Water filter frame; 13. Handle; 14. Movable door.

DETAILED DESCRIPTION

In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

As shown in FIG. 1 and FIG. 2 , an alfalfa seed impurity removal and screening device disclosed in the present application comprises a screening box 1, an impurity collecting box 2 is provided at the lower side of the screening box 1, the impurity collecting box 2 is mounted on a supporting frame 3, an adding funnel 4 is provided above the screening box 1, and the adding funnel 4 is mounted on the top plate of the screening box 1 through a fixing bracket 5;

An opening is provided at the top of the screening box 1, and the opening of the screening box 1 is facing the lower port of the adding funnel 4. A blowing device 6 is provided on one side of the screening box 1, and the blowing device 6 can blow air into the screening box 1 along its length direction;

A conveying funnel 7 is fixedly installed in the impurity collecting box 2, and the lower end of the conveying funnel 7 passes through the bottom plate of the impurity collecting box 2; the conveying funnel 7 is located in the impurity collecting box 2 on the side of the adding funnel 4 away from the blowing device 6.

In the above embodiments, the weight of a single alfalfa seed is generally small, and the weight of a thousand alfalfa seeds is only about 2.3g. The weeds commonly encountered in the alfalfa planting process include shepherd's purse, sophora japonica, and purslane, among which the seeds of shepherd's purse are relatively small, but the thousand-grain weight is about 0.09g, which is significantly less than the weight of alfalfa seeds; the thousand-grain weight of sophora japonica seeds is 0.2 to 0.3g, which is larger than the weight of shepherd's purse seeds, but also much smaller than the seeds of alfalfa, and the thousand-grain weight of purslane seeds is about 20g to 30g, which is significantly larger than the alfalfa seeds. The weight of some other alfalfa seeds with incomplete particles is also different from that of normal alfalfa seeds, which shows that there is an obvious weight difference between the alfalfa seeds in the normal state and the weed seeds contained therein.

Based on the above conditions, when the grower adds the alfalfa seeds to be screened and impurities removed into the adding funnel 4, the alfalfa seeds will flow to the lower port of the adding funnel 4 under the action of gravity. Since the diameter of the lower port of the adding funnel 4 is smaller than its upper port, the flow rate of alfalfa seeds discharged from the lower port of the adding funnel 4 will be limited, so that the adding funnel 4 will discharge the alfalfa seeds evenly downward. After being started, the blowing device 6 on one side of the screening box 1 can blow air into the screening box 1, so that there is a continuous airflow inside the screening box 1, which will generate a lateral force on the alfalfa seeds to be processed discharged from the adding funnel 4. At this time, the heavy weed seeds in the screening box 1 and the gravel that may be carried in the harvesting process are less affected by the lateral wind force, and they can roughly continue to maintain a linear motion state and fall into the impurity collection box 2 along the vertical direction; the light weed seeds and the defective alfalfa seeds with internal cavities are greatly affected by the lateral wind force, and they will float farther while falling, and are roughly located in the gap between the side wall of the screening box 1 away from the blowing device 6 and the conveying funnel 7. The weight of qualified alfalfa seeds is between the above two types of weed seeds, so the qualified alfalfa seeds will float onto the conveying funnel 7 and then be discharged along the conveying funnel 7. At this time, the alfalfa seeds obtained from the conveying funnel 7 are qualified seeds after the impurities are screened out. Compared with the method of removing impurities from alfalfa seeds through a sieve in the prior art, the present application effectively solves the problem that during the removal of impurities in the prior art, although some impurities have a different weight from qualified alfalfa seeds, impurities with similar volume sizes are difficult to remove through the sieve.

Furthermore, as shown in Figures 1 and 2, the blowing device 6 is a blower, which is fixedly mounted on the outer wall of the screening box 1 through an extension plate 8. The air outlet of the blower passes through the side wall of the screening box 1 on the adjacent side and extends to the interior of the screening box 1, and the air outlet of the blower is facing the other side wall of the screening box 1 in the length direction.

In the above embodiments, the blower is fixedly mounted on the extension plate 8 outside the screening box 1, and a reinforcing support rod can be provided on the lower side of the extension plate 8 to improve the supporting effect of the extension plate 8 on the blower. The air outlet of the blower is located inside the screening box 1, and the air inlet at the rear is located outside the screening box 1, so that the blower can continuously blow the airflow in the environment into the screening box 1, thereby forming an airflow inside the screening box 1 that can sort the alfalfa seeds. The blower can not only generate a stable airflow in the screening box 1, but also the noise when it is working is much smaller than the noise of the screening net in the prior art when it is working through the vibration motor, which can make the growers more comfortable when removing impurities and screening the alfalfa seeds.

Furthermore, as shown in FIG. 2 and FIG. 3 , a ventilation filter 9 is installed on the side wall of the screening box 1 away from the blower.

In the above embodiment, the aperture of the ventilation filter 9 is smaller than the smallest impurity particle size in the alfalfa seeds, so that small impurity particles can be prevented from escaping from the ventilation filter 9 after being blown to the ventilation filter 9 by the blower. The holes on the ventilation filter 9 of the present application can ensure that the wind blown by the blower can be smoothly discharged into the environment, so that the wind blown by the blower can be prevented from blowing the lighter impurities to the opposite side wall of the screening box 1, and the airflow is blocked and flows in the reverse direction, so that the lighter impurities that have not yet fallen into the impurity collection box 2 fall elsewhere.

Furthermore, as shown in FIGS. 1 to 3 , a salt selection tank 10 is provided below the impurity collection box 2 .

In the above embodiment, the defective products with larger weight difference with normal alfalfa seeds have been separated in the screening box 1, but the alfalfa seeds falling into the transmission funnel 7 may still contain some incomplete seeds with little difference in weight with normal alfalfa seeds. In the salt selection pool 10, a certain concentration of salt water is filled, and the buoyancy of salt water is larger than that of fresh water, which can provide larger buoyancy for these incomplete seeds. Other alfalfa seeds that may contain shrunken and damaged by insects also float in the salt water because of density less than full seeds, and the impurities floating on the water surface are salvaged by the grower. The alfalfa seeds are further processed by the salt selection pool 10, so that the seed weight screened out can be further improved. The salt water of general 10% concentration is sufficient, and specifically in actual production, the grower can carry out adaptive adjustment according to actual conditions.

Furthermore, as shown in FIG. 1 and FIG. 3 , a partition 11 is provided in the middle of the salt selection pool 10 , and the partition 11 divides the interior of the salt selection pool 10 into two independent spaces, and one of the spaces in the salt selection pool 10 faces the lower port of the transfer funnel 7 .

In the above embodiments, the salt selection pool 10 of the present application is separated into two independent spaces by the partition 11. The space directly below the conveying funnel 7 can be used to fill with salt water, and the other space can be used to place clean water. In this way, the alfalfa seeds can be quickly placed in clean water for cleaning after the salt selection work is completed.

Furthermore, as shown in FIGS. 1 to 3 , a water filter frame 12 is placed in the salt selection pool 10 , and a handle 13 is provided on the top of the water filter frame 12 .

In the above embodiment, the holes on the water filter frame 12 can ensure that salt water or clean water can smoothly enter the interior thereof, while preventing the alfalfa seeds in the water filter frame 12 from being scattered outside thereof. In addition, the planters can quickly gather the salt-selected alfalfa seeds together through the water filter frame 12 and then put them into clean water for washing. The handle 13 on the water filter frame 12 is not only convenient for the planters to move the water filter frame 12, but also convenient for the water filter frame 12 to be placed on the salt selection pool 10 through the handle 13.

Furthermore, as shown in FIG. 1 and FIG. 3 , a movable door 14 that can be opened and closed freely is provided on one side wall of the impurity collecting box 2 .

In the above embodiment, the planting personnel can close the movable door 14 when screening the alfalfa seeds, so as to facilitate the impurity collection box 2 to collect impurities in various alfalfa seeds. After the screening work is completed, the planting personnel can open the movable door 14 to clean the impurities collected in the impurity collection box 2.

The implementation principle of this embodiment is: when in use, the grower first turns on the blower, and then slowly adds the alfalfa seeds to be screened and impurities removed into the adding funnel 4, and the alfalfa adding funnel 4 will fall into the screening box 1 after being discharged.

At this time, there is a continuous flow of air blown by the blower in the screening box 1, which will generate a lateral force on the alfalfa seeds to be processed discharged from the adding funnel 4. At this time, the heavy weed seeds in the screening box 1 and the gravel that may be carried in the harvesting process are less affected by the lateral wind force, and they can roughly continue to maintain a linear motion state, that is, they fall from the area between the conveying funnel 7 and the side wall of the impurity collection box 2 close to the blower to the impurity collection box 2; the light weed seeds and the defective alfalfa seeds with internal cavities are greatly affected by the lateral wind force, and they will float farther while falling, and are roughly located in the gap between the side wall of the screening box 1 away from the blowing device 6 and the conveying funnel 7, and then fall to the impurity collection box 2 below. The weight of qualified alfalfa seeds is between the above two types of weed seeds, so qualified alfalfa seeds will float to the conveying funnel 7 and then be discharged along the conveying funnel 7. At this time, the alfalfa seeds obtained from the conveying funnel 7 are qualified seeds after the impurities are screened out.

These seeds will continue to be discharged to the salt water area in the salt selection pond 10 along the transmission funnel 7, and the planting personnel can utilize the agricultural tool such as colander to stir the alfalfa seeds in the salt water, make them fully soaked with the salt water, thereby quickly utilize the buoyancy of the salt water to screen out the unqualified alfalfa seeds. After some defective seeds or impurities float out of the salt water, the planting personnel can utilize the colander to skim off these impurities. Then two people cooperate to lift the water filter frame 12 through the handle 13, and the water in the alfalfa seeds is also drained for a while, and then the qualified alfalfa seeds can be rinsed in the clear water in another area of the salt selection pond 10, and finally these seeds are taken out by the water filter frame 12 for other processing.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. The utility model provides a alfalfa seed edulcoration screening plant which characterized in that: the screening box comprises a screening box body (1), wherein an impurity collecting box (2) is arranged on the lower side of the screening box body (1), the impurity collecting box (2) is arranged on a supporting frame (3), an adding funnel (4) is arranged above the screening box body (1), and the adding funnel (4) is arranged on a top plate of the screening box body (1) through a fixing support (5);

An opening is formed in the top of the screening box body (1), the opening of the screening box body (1) faces the lower port of the adding hopper (4), a blowing device (6) is arranged on one side of the screening box body (1), and the blowing device (6) can blow air into the screening box body (1) along the length direction of the blowing device;

A conveying funnel (7) is fixedly arranged in the impurity collecting box (2), and the lower port of the conveying funnel (7) penetrates through the bottom plate of the impurity collecting box (2); the conveying funnel (7) is positioned at one side of the adding funnel (4) away from the blowing device (6) in the impurity collecting box (2).

2. The alfalfa seed edulcoration screening apparatus of claim 1, wherein: the air blowing device (6) is an air blower, the air blower is fixedly arranged on the outer side wall of the screening box body (1) through an extension plate (8), an air outlet of the air blower penetrates through the side wall of the screening box body (1) near the side and then extends into the screening box body (1), and an air outlet of the air blower faces the other side wall of the length direction of the screening box body (1).

3. The alfalfa seed edulcoration screening apparatus of claim 2, wherein: and a ventilation filter screen (9) is arranged on the side wall of the screening box body (1) far away from one side of the blower.

4. The alfalfa seed edulcoration screening apparatus of claim 1, wherein: a salt selecting pool (10) is arranged below the impurity collecting box (2).

5. The alfalfa seed edulcoration screening apparatus of claim 4, wherein: the middle of the salt separation tank (10) is provided with a partition plate (11), the partition plate (11) divides the interior of the salt separation tank (10) into two independent spaces, and one space in the salt separation tank (10) is opposite to the lower port of the conveying funnel (7).

6. The alfalfa seed edulcoration screening apparatus of claim 5, wherein: a water filtering frame (12) is arranged in the salt separation tank (10), and a handle (13) is arranged at the top of the water filtering frame (12).

7. The alfalfa seed edulcoration screening apparatus of any one of claims 1 to 6, wherein: one side wall of the impurity collecting box (2) is provided with a movable door (14) which can be freely opened and closed.