Seed screening and drying device for forestry planting

Abstract

The utility model discloses a seed screening and drying device for forestry planting and relates to the technical field of seed screening. Comprising a seed conveying mechanism, the seed conveying mechanism is connected with a pneumatic conveying device to convey seeds, a stirring device is arranged in the seed conveying mechanism, the stirring device stirs the seeds to enable the seeds to be separated from impurities, the impurities are blown to be separated by air flow, and a heating mechanism is further installed on the seed conveying mechanism. Seeds entering from a discharging pipe are conveyed into a screening barrel through pneumatic conveying equipment, when the pneumatic conveying equipment blows out airflow, heat generated by a heating rod can be driven to synchronously enter the screening barrel to dry the seeds, and in the drying process, the airflow continues to be supplied into the screening barrel; as the seeds are driven by the stirring blades, light impurities in the seeds float upwards and are discharged through a waste outlet, and moisture is also discharged accordingly, so that the effects that the seeds are dried while being screened, and the screening efficiency is improved are achieved.

Description

Technical Field

[0001] The utility model discloses a seed screening and drying device for forestry planting, which relates to the technical field of seed screening. Background Art

[0002] When planting forestry, seedlings need to be cultivated and planted into finished trees in the nursery. The seedlings are obtained by cultivating plant seeds.

[0003] The seeds of trees and plants are generally the fruits of the trees, and their outer surface is often covered with a protective layer. When obtaining the seeds, the outer protective layer is often mixed in the seeds, so the seeds need to be screened to obtain pure seeds.

[0004] Chinese Patent Publication No.: CN215940264U published "A Breeding Seed Screening Device", which includes a water pool, a transport device arranged on the water pool, a conveyor belt arranged on the transport device, side wings symmetrically fixed on both sides of the conveyor belt, through holes evenly distributed on the conveyor belt and the side wings, and two sets of pushing devices. The middle part of the conveyor belt is located in the water pool, the two sets of pushing devices are arranged on the water pool and on both sides of the conveyor belt, and the telescopic end of the pushing device can push the conveyor belt to shake.

[0005] The above-mentioned prior art screens seeds by automated flotation, which can improve the screening efficiency. However, there are the following problems:

[0006] After the seeds are screened by the device, the seeds need to be dried to facilitate storage and prevent the seeds from rotting. Therefore, the subsequent drying operation is increased, resulting in a decrease in the efficiency of seed screening. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of the utility model is to improve the efficiency of seed screening. A seed screening and drying device for forestry planting is provided, which adopts a hot air flow screening scheme. The beneficial effect is that the seeds are dried when they are screened, thereby improving the seed screening efficiency.

[0008] The purpose of the utility model is achieved in this way:

[0009] A seed screening and drying device for forestry planting, comprising a seed conveying mechanism, the seed conveying mechanism is connected to a pneumatic conveying device to convey seeds, a stirring device is arranged inside the seed conveying mechanism, the stirring device stirs the seeds to separate the seeds from impurities, and the impurities are separated by airflow, and a heating mechanism is also installed on the seed conveying mechanism, the heating mechanism heats air, and conveys hot air to the inside of the seed conveying mechanism through the airflow of the pneumatic conveying device to dry the seeds;

[0010] The seed conveying mechanism comprises a screening barrel, one side of the screening barrel is connected to a gas transmission equipment connecting pipe, the gas transmission equipment connecting pipe is vertically installed with a feed pipe outside the screening barrel, the other side of the screening barrel is connected to a discharge pipe, a plug is provided on the discharge pipe, and the top of the screening barrel is connected to a waste outlet;

[0011] The gas transmission equipment connecting pipe is located at the upper part of the screening barrel, and the discharge pipe is located at the lower part of the screening barrel;

[0012] The stirring device includes a transmission motor and a stirring blade, wherein the transmission motor is located at the bottom of the screening barrel, and the stirring blade is located inside the screening barrel, and the transmission motor drives the stirring blade to rotate to push the seeds inside the screening barrel, so that the seeds move;

[0013] The heating mechanism includes an insulated tube, which is located in the middle of the connecting tube of the gas transmission equipment. A power module is installed at the bottom of the insulated tube and connected to a power source. A heating rod is installed inside the insulated tube, and the power module supplies power to the heating rod to make the heating rod generate heat.

[0014] Preferably, a motor frame is provided at the bottom of the screening barrel, and the motor frame supports the transmission motor, and the transmission motor is detachable.

[0015] Preferably, an active magnetic disk is connected to the end of the rotating shaft of the transmission motor, and the active magnetic disk is located at the bottom of the screening barrel. A driven magnetic disk is fixedly connected to the bottom of the stirring blade, and the driven magnetic disk is installed on the inner bottom of the screening barrel through a bearing seat. The rotation of the active magnetic disk drives the driven magnetic disk to rotate.

[0016] Preferably, the diameter of the driven magnetic disk is equal to the inner diameter of the screening barrel, and the outer surface of the stirring blade overlaps the inner wall of the screening barrel.

[0017] Preferably, the stirring blades are curved rigid sheets, and the stirring blades are equidistantly distributed around the circumference.

[0018] Preferably, the stirring blade comprises a blade, and a throwing port is provided on the blade, and the throwing port is located at the upper section of the blade.

[0019] Preferably, a skirt extending downward is provided at the bottom of the throwing port, and an arc-shaped chamfer is formed between the throwing port and the skirt.

[0020] Beneficial effects:

[0021] First, the utility model transports the seeds entering from the feeding pipe to the interior of the screening barrel through the pneumatic transmission equipment, and when the pneumatic transmission equipment blows out the airflow, it will drive the heat generated by the heating rod to simultaneously enter the interior of the screening barrel to dry the seeds. During the drying process, the airflow will continue to be supplied to the interior of the screening barrel, and as the seeds are driven by the stirring blades, the lighter impurities in the seeds float up and are discharged through the waste outlet, and the moisture is also discharged therewith, achieving the effect of drying the seeds while screening the seeds, thereby improving the screening efficiency.

[0022] Second, the utility model propels the seeds to move by setting blades. While pushing the seeds, the seeds will gradually be pushed upward to the position of the throwing port and fall, so that the lower layer of the seeds will be replaced. In the process of the seeds falling, lighter impurities will be lifted up and driven by the airflow to float upward, thereby achieving the effect of further improving the screening efficiency and improving the drying efficiency.

[0023] Thirdly, the utility model drives the active magnetic disk to rotate through the transmission motor, thereby driving the driven magnetic disk to rotate through the magnetic force, so that the bottom of the screening barrel can be completely sealed, preventing dust in the seeds from entering the connection seam of the transmission motor shaft, and making the transmission motor more convenient to disassemble and maintain without removing the stirring blades, thereby achieving the effect of protecting the transmission motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the screening barrel of the utility model;

[0026] Figure 3 This is a cross-sectional view of the internal structure of the screening barrel of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the stirring blade of the utility model;

[0028] Figure 5 This is a front view of the stirring blade structure of the utility model;

[0029] Figure 6 It is a schematic diagram of the heating mechanism of the utility model.

[0030] In the figure: 1. Seed conveying mechanism; 101. Screening barrel; 102. Air transmission equipment connecting pipe; 103. Feeding pipe; 104. Discharging pipe; 105. Waste outlet; 106. Motor frame; 2. Stirring device; 201. Transmission motor; 202. Active magnetic disk; 203. Driven magnetic disk; 204. Stirring blade; 2041. Blade; 2042. Sprinkling port; 3. Heating mechanism; 301. Insulation tube; 302. Power module; 303. Heating rod. DETAILED DESCRIPTION

[0031] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0032] A seed screening and drying device for forestry planting in this specific implementation manner, such as Figure 1-6 As shown, it includes a seed conveying mechanism 1, which is connected to a pneumatic conveying device to convey seeds, a stirring device 2 is arranged inside the seed conveying mechanism 1, the stirring device 2 stirs the seeds to separate the seeds from impurities, and the impurities are separated by airflow, and a heating mechanism 3 is also installed on the seed conveying mechanism 1, the heating mechanism 3 heats the air, and conveys the hot air to the inside of the seed conveying mechanism 1 through the airflow of the pneumatic conveying device to dry the seeds;

[0033] The seed conveying mechanism 1 includes a screening barrel 101, one side of the screening barrel 101 is connected to a gas transmission equipment connecting pipe 102, the gas transmission equipment connecting pipe 102 is vertically installed with a feed pipe 103 outside the screening barrel 101, the other side of the screening barrel 101 is connected to a discharge pipe 104, a plug is provided on the discharge pipe 104, and the top of the screening barrel 101 is connected to a waste outlet 105;

[0034] The air transmission equipment connecting pipe 102 is located at the upper part of the screening barrel 101, and the discharge pipe 104 is located at the lower part of the screening barrel 101. When the seed screening is completed, the plug of the discharge pipe 104 is opened, and the seeds are discharged from the position of the discharge pipe 104 under the pressure of the air flow and collected;

[0035] The stirring device 2 includes a transmission motor 201 and a stirring blade 204. The transmission motor 201 is located at the bottom of the screening barrel 101, and the stirring blade 204 is located inside the screening barrel 101. The transmission motor 201 drives the stirring blade 204 to rotate to push the seeds inside the screening barrel 101, so that the seeds move;

[0036] The heating mechanism 3 includes an insulated tube 301, which is located in the middle of the gas transmission equipment connecting tube 102. A power module 302 is installed at the bottom of the insulated tube 301 and connected to a power source. A heating rod 303 is installed inside the insulated tube 301. The power module 302 supplies power to the heating rod 303 to make the heating rod 303 generate heat.

[0037] Through the above technical solution, the seeds entering from the feeding pipe 103 are transported to the inside of the screening barrel 101 by using a pneumatic transmission device, and when the pneumatic transmission device blows out the airflow, the heat generated by the heating rod 303 will be driven to enter the inside of the screening barrel 101 to dry the seeds. During the drying process, the airflow will continue to be supplied to the inside of the screening barrel 101, and as the seeds are driven by the stirring blades 204, the lighter impurities in the seeds float up and are discharged through the waste outlet 105, and the moisture is also discharged therewith, so that the seeds are dried while being screened, thereby improving the screening efficiency.

[0038] The working principle of the pneumatic transmission equipment is that high-pressure gas enters the interior of the gas transmission equipment connecting pipe 102, thereby pushing the seeds falling from the feeding pipe 103 into the interior of the screening barrel 101. After entering the interior of the screening barrel 101, the high-pressure airflow will find an exhaust port, and then be ejected at a high speed from the position of the waste outlet 105. During the ejection process of the airflow, lighter impurities and empty shell seeds will be taken out to achieve the purpose of screening;

[0039] The purpose of setting the position of the heating mechanism 3 is to increase the transmission distance of the hot air, and it is also necessary to control the temperature of the heating mechanism 3 to prevent the high temperature from directly acting on the seeds inside the screening barrel 101 to prevent the seeds from being too dry and losing their activity.

[0040] Specifically, a motor frame 106 is provided at the bottom of the screening barrel 101 , and the motor frame 106 supports the transmission motor 201 , and the transmission motor 201 is detachable.

[0041] Through the above technical solution, the purpose of setting the motor frame 106 is to support the transmission motor 201, so that the transmission motor 201 is more stable when working, and the transmission motor 201 is installed in a detachable manner, so that the transmission motor 201 can be easily disassembled for maintenance.

[0042] Specifically, the end of the rotating shaft of the transmission motor 201 is connected to an active magnetic disk 202, which is located at the bottom of the screening barrel 101. The bottom of the stirring blade 204 is fixedly connected to a driven magnetic disk 203, which is installed on the inner bottom of the screening barrel 101 through a bearing seat. The rotation of the active magnetic disk 202 drives the driven magnetic disk 203 to rotate.

[0043] Through the above technical solution, the driving magnetic disk 202 is driven to rotate by the transmission motor 201, thereby driving the driven magnetic disk 203 to rotate by the magnetic force, so that the bottom of the screening barrel 101 can be completely sealed, preventing dust in the seeds from entering the connection seam of the transmission motor 201 shaft, and making the transmission motor 201 more convenient to disassemble and maintain without disassembling the stirring blade 204, thereby achieving the effect of protecting the transmission motor 201;

[0044] When the seed is accidentally stuck on the driven magnetic disk 203 and cannot rotate, the transmission motor 201 drives the active magnetic disk 202 to idle, thereby protecting the transmission motor 201 and preventing the transmission motor 201 from being damaged due to overload.

[0045] The bearing seat is used to connect the driven magnetic disk 203 so that the friction when the driven magnetic disk 203 rotates can be reduced and the driven magnetic disk 203 can be limited.

[0046] Specifically, the diameter of the driven magnetic disk 203 is equal to the inner diameter of the screening barrel 101 , and the outer surface of the stirring blade 204 overlaps the inner wall of the screening barrel 101 .

[0047] Through the above technical solution, the diameter of the driven magnetic disk 203 is set to prevent seeds, impurities, and empty shell seeds from entering the bottom of the screening barrel 101 through the gap between the outer surface of the driven magnetic disk 203 and the inside of the screening barrel 101 and jamming the rotation of the driven magnetic disk 203.

[0048] Specifically, the stirring blades 204 are curved rigid sheets, and the stirring blades 204 are evenly spaced and distributed around the circumference.

[0049] Through the above technical solution, the stirring blades 204 are set to be curved, so as to effectively push the seeds to move, and the seeds move above the stirring blades 204 under the action of the thrust, and the equidistantly distributed stirring blades 204 are used to improve the stirring efficiency of the seeds.

[0050] Specifically, the stirring blade 204 includes a blade 2041 , and a throwing port 2042 is formed on the blade 2041 . The throwing port 2042 is located at the upper section of the blade 2041 .

[0051] Through the above technical solution, the blades 2041 are arranged to push the seeds to move. While pushing the seeds, the seeds are gradually pushed upward to the position of the throwing port 2042 and fall, so that the lower layer of the seeds is replaced, and during the falling process of the seeds, the lighter impurities will be lifted up and driven by the airflow to float upward, thereby achieving the effect of further improving the screening efficiency and the drying efficiency;

[0052] When the device is in use, the total height of the seed container does not exceed the bottom of the throwing port 2042, so that the seeds falling from the throwing port 2042 have a height difference for throwing.

[0053] Specifically, a skirt extending downward is provided at the bottom of the dispensing port 2042, and an arc-shaped chamfer is formed between the dispensing port 2042 and the skirt.

[0054] Through the above technical solution, a downwardly extending skirt is provided at the bottom of the throwing port 2042, the purpose of which is to improve the seed throwing effect. When the seeds pass through the throwing port 2042, they are gradually spread out on the surface of the skirt and then thrown, thereby increasing the effective distance and preventing the seeds from accumulating and falling directly from the throwing port 2042.

[0055] The purpose of setting the arc chamfer is to protect the seeds and prevent the seeds from hitting the right-angle edge and causing damage.

[0056] When in use, the seeds entering from the feed pipe 103 are transported to the interior of the screening barrel 101 through the pneumatic transmission equipment, and when the pneumatic transmission equipment blows out the airflow, the heat generated by the heating rod 303 will be driven to enter the interior of the screening barrel 101 to dry the seeds. During the drying process, the airflow will continue to be supplied to the interior of the screening barrel 101, and as the seeds are driven by the stirring blades 204, the lighter impurities in the seeds float up and are discharged through the waste outlet 105, and the moisture is also discharged, so that the seeds are dried while screening them, thereby improving the screening efficiency.

[0057] The blades 2041 are provided to push the seeds to move. While pushing the seeds, the seeds are gradually pushed upward to the position of the throwing port 2042 and fall down, so that the lower layer of the seeds is replaced. In the process of the seeds falling, the lighter impurities are lifted up and driven by the airflow to float upward, thereby achieving the effect of further improving the screening efficiency and the drying efficiency.

[0058] The driving magnetic disk 202 is driven to rotate by the transmission motor 201, thereby driving the driven magnetic disk 203 to rotate through the magnetic force, so that the bottom of the screening barrel 101 can be completely sealed, preventing dust in the seeds from entering the connection seam of the transmission motor 201 shaft, and making it easier to disassemble and maintain the transmission motor 201 without removing the stirring blade 204, thereby achieving the effect of protecting the transmission motor 201.

[0059] It should be noted that although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seed screening and drying device for forestry planting, comprising a seed conveying mechanism (1), wherein the seed conveying mechanism (1) is connected to a pneumatic conveying device to convey seeds, wherein a stirring device (2) is arranged inside the seed conveying mechanism (1), wherein the stirring device (2) stirs the seeds to separate the seeds from impurities, and the impurities are separated by airflow, wherein: The seed conveying mechanism (1) is also provided with a heating mechanism (3), and the heating mechanism (3) heats the air and conveys the hot air to the interior of the seed conveying mechanism (1) through the airflow of the pneumatic conveying device to dry the seeds; The seed conveying mechanism (1) comprises a screening barrel (101), one side of the screening barrel (101) is connected to a gas transmission equipment connecting pipe (102), a feed pipe (103) is vertically installed outside the gas transmission equipment connecting pipe (102) close to the screening barrel (101), the other side of the screening barrel (101) is connected to a discharge pipe (104), a plug is provided on the discharge pipe (104), and the top of the screening barrel (101) is connected to a waste outlet (105); The gas transmission equipment connecting pipe (102) is located at the upper part of the screening barrel (101), and the discharge pipe (104) is located at the lower part of the screening barrel (101); The stirring device (2) comprises a transmission motor (201) and a stirring blade (204); the transmission motor (201) is located at the bottom of the screening barrel (101); the stirring blade (204) is located inside the screening barrel (101); and the transmission motor (201) drives the stirring blade (204) to rotate to push the seeds inside the screening barrel (101), so that the seeds move; The heating mechanism (3) comprises an insulation tube (301), the insulation tube (301) is located in the middle of the gas transmission equipment connecting tube (102), a power module (302) is installed at the bottom of the insulation tube (301) and is connected to a power source, a heating rod (303) is installed inside the insulation tube (301), and the power module (302) supplies power to the heating rod (303) so that the heating rod (303) generates heat.

2. The seed screening and drying device for forestry planting according to claim 1, characterized in that: A motor frame (106) is provided at the bottom of the screening barrel (101), and the motor frame (106) supports the transmission motor (201), and the transmission motor (201) is detachable.

3. The seed screening and drying device for forestry planting according to claim 2, characterized in that: The end of the rotating shaft of the transmission motor (201) is connected to an active magnetic disk (202), and the active magnetic disk (202) is located at the bottom of the screening barrel (101). The bottom of the stirring blade (204) is fixedly connected to a driven magnetic disk (203), and the driven magnetic disk (203) is installed on the inner bottom of the screening barrel (101) through a bearing seat. The rotation of the active magnetic disk (202) drives the driven magnetic disk (203) to rotate.

4. The seed screening and drying device for forestry planting according to claim 3, characterized in that: The diameter of the driven magnetic disk (203) is equal to the inner diameter of the screening barrel (101), and the outer surface of the stirring blade (204) overlaps the inner wall of the screening barrel (101).

5. The seed screening and drying device for forestry planting according to claim 1, characterized in that: The stirring blades (204) are curved rigid sheets, and the stirring blades (204) are evenly spaced and distributed around the circumference.

6. The seed screening and drying device for forestry planting according to claim 5, characterized in that: The stirring blade (204) comprises a blade (2041), and a throwing port (2042) is provided on the blade (2041). The throwing port (2042) is located at the upper section of the blade (2041).

7. The seed screening and drying device for forestry planting according to claim 6, characterized in that: The bottom of the dispensing port (2042) is provided with a downwardly extending skirt, and an arc-shaped chamfer is formed between the dispensing port (2042) and the skirt.

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