CN107890945A - A kind of agricultural seed screening and drying device - Google Patents

Abstract

The invention relates to an agricultural seed screening and drying device, which has strong processing continuity, high cooperation degree of multiple processes, short process transfer time, low labor intensity, high processing efficiency and good treatment effect. Among them, the material inlet of the cleaning cylinder and the material outlet of the screening cylinder are connected through a feeding hoist, and the cleaning cylinder is connected with a water tank; a waste material frame is arranged in the water tank, and the waste material frame is driven by the first power device to move up and down, and the slider is driven by The second power unit drives the horizontal movement along the slide rail; the baffle plate is driven by the third power unit to move horizontally; the installation rod is driven by the fourth power unit to rotate, and the installation rod part is located in the cleaning cylinder, and the outer circumference of the installation rod in the cleaning cylinder is set There are multiple mixing blades, and the mixing blades are arranged in a dislocation up and down. The outer circumference of the installation rod located outside the cleaning cylinder is set with a driving gear, and the driving gear is meshed with a driven gear. The slave gear is set on the outer circumference of the distribution rod. Distributing blades; the discharge mechanism includes a discharge conveyor belt.

Description

An agricultural seed screening and drying device

technical field

The invention relates to the field of agricultural technology, in particular to an agricultural seed screening and drying device.

Background technique

The seeds contain fine sand and some unsaturated or dry seeds. If these bad seeds and impurities are not selected in advance, the germination rate of the seeds will be greatly affected. The traditional seed selection method is mostly carried out manually, which is time-consuming and laborious, and it cannot guarantee that the impurities and shriveled seeds in the seeds can be fully selected. In addition, the seeds need to be cleaned and dried before packaging. This process is independent of the sieving process. Since the process requires a certain transfer time, the processing cycle of the seeds is prolonged and the processing efficiency of the seeds is reduced.

Contents of the invention

The present invention just aims at the deficiencies of the prior art, and provides an agricultural seed screening and drying device.

In order to solve the above problems, the technical scheme adopted in the present invention is as follows:

An agricultural seed screening and drying device, comprising: a screening mechanism, a cleaning mechanism and a drying mechanism; the screening mechanism is used to separate gravel mixed in seeds, and the cleaning mechanism is used to screen The cleaned seeds are cleaned; the drying mechanism is used to dry the cleaned seeds; the discharging mechanism is used to discharge the seeds;

The screening mechanism includes a screening cylinder, the screening cylinder has a feed port and a discharge port, a vibrating screen is arranged between the feeding port and the discharge port, and the vibrating screen is driven by a vibrating motor to vibrate up and down ;

The cleaning mechanism includes a cleaning cylinder, and the cleaning cylinder has a material inlet, a water inlet, an overflow and a material outlet;

The feed inlet of the cleaning cylinder and the discharge outlet of the screening cylinder are connected by a feeding hoist, the water inlet of the cleaning cylinder is connected to a water tank through a water inlet pipe, and a water pump is connected to the water inlet pipe; the upper part of the water tank It is open and located below the discharge port of the cleaning cylinder; a waste material frame is provided in the water tank, and the waste material frame has a waste material inlet, a waste material outlet, and a through hole connecting its internal space and external space; the waste material inlet passes through the return The water pipe is connected to the overflow port of the cleaning cylinder, and the aperture of the through hole is smaller than the particle diameter of the shriveled seeds; the waste frame is driven to move up and down by the first power device, and the first power device is connected to the slide block. The slider is slidably connected with a slide rail, and the slider is driven by the second power device to move horizontally along the slide rail; the discharge port of the cleaning cylinder is slidably connected with a material baffle plate, and the material baffle plate is driven by the third power unit. The device drives horizontal movement;

The cleaning cylinder is rotatably connected with a mounting rod, and the mounting rod is driven to rotate by the fourth power device. The mounting rod is partially located in the cleaning cylinder, and the outer circumference of the mounting rod in the cleaning cylinder is equipped with a plurality of stirring blades. The blades are dislocated up and down. The outer periphery of the installation rod located outside the cleaning cylinder is set with a driving gear, and the driving gear is meshed with a driven gear. The driven gear is set on the outer periphery of the distribution rod. Material blade;

The discharge mechanism includes a discharge conveyor belt, the discharge conveyor belt is at least partly located between the cleaning cylinder and the water tank, there is a gap between the discharge conveyor belt and the distributing blade, and a plurality of water holes are arranged on it.

Preferably, the drying mechanism includes an air supply mechanism and an air supply pipe connected to the air supply mechanism, and a plurality of air outlets are staggeredly distributed on the air supply pipe, and the air outlet direction of the air outlets is perpendicular to the conveying direction of the discharge conveyor belt.

Preferably, a limit plate is provided between the discharge port of the cleaning cylinder and the material distribution blade, the limit plate is arranged close to the discharge conveyor belt, and the length of the limit plate is not less than the width of the discharge conveyor belt.

Preferably, a spraying mechanism is provided between the material distribution blade and the drying mechanism.

Preferably, the spraying mechanism includes a clean water tank and a spray pipe connected to the clean water tank, a plurality of water outlets are arranged in a staggered manner on the spray pipe, and the water outlet direction of the water outlets is perpendicular to the conveying direction of the discharge conveyor belt.

Preferably, the drying mechanism further includes a heating mechanism connected to the air supply mechanism for raising the temperature of the air coming out of the air supply mechanism.

Preferably, a waste collection frame is provided below the movement stroke of the slider.

The present invention compares with prior art, and implementation effect of the present invention is as follows:

Pour the seeds into the screening cylinder, the vibration motor drives the vibrating screen to vibrate up and down, the gravel mixed in the seeds is isolated outside the vibrating screen, and the seeds are lifted to the cleaning cylinder by the feeding hoist after passing through the vibrating screen Inside.

The water pump pumps the cleaning medium in the water tank into the cleaning cylinder through the water inlet pipe, and the shriveled seeds float above the liquid surface of the cleaning medium under the action of buoyancy.

The fourth power unit drives the mounting rod to drive the stirring blades to rotate, and the stirring blades stir the cleaning medium. Since the stirring blades are arranged in a dislocation up and down on the mounting rod, the seeds are fully contacted with the cleaning medium. The seeds all floated above the liquid level of the wash medium.

The water pump continuously pumps the cleaning medium in the water tank into the cleaning cylinder, and the liquid level of the cleaning medium in the cleaning cylinder rises gradually. When the liquid level of the cleaning medium reaches the overflow port of the cleaning cylinder, the shriveled seeds enter the return pipe along with the cleaning medium, and move along the return pipe to the waste box.

After all the shriveled seeds in the cleaning cylinder are removed, the water pump is turned off, and the third power device is turned on, which drives the movement of the baffle plate to expose the discharge port of the cleaning cylinder.

The cleaning medium and seeds move through the discharge port to the discharge conveyor belt under the action of gravity. A plurality of water passing holes are arranged on the discharge conveyor belt, and the cleaning medium falls back into the water tank through the water passing holes.

When the fourth power device drives the installation rod to rotate, the driving gear on the installation rod meshes with the driven gear, so that the material distribution rod rotates, and then the material distribution blade is driven to rotate. The distributing blade breaks up the seeds falling from the outlet of the cleaning cylinder during the rotation process, and the seeds are spread on the discharge conveyor belt by the movement of the distributing blade.

The seeds move along the discharge conveyor belt, and are dried by the drying mechanism when they pass through the drying mechanism. The cleaning medium remaining on the surface of the seeds is fully evaporated, and the seeds are discharged through the discharge conveyor belt.

During the multiple cleaning and drying processes, the amount of shriveled seeds collected in the waste box gradually increased. In order to ensure the separation effect on shriveled seeds, the first power device can be started, and after the waste material frame is separated from the water tank, it is allowed to stand for a period of time, so that the cleaning medium remaining in the waste material frame falls back into the water tank, and then the second power device is started , so that the waste box moves to the side of the water tank with the slide block, and then the waste outlet of the waste box is opened, so that the dried seeds fall from the waste box.

The agricultural seed screening and drying device proposed by the present invention can separate gravel and shriveled seeds from the seeds, and can clean the seeds during the separation process, and can also dry the seeds after cleaning, and The shriveled seeds can be collected and cleaned in time. The whole process has strong continuity, high cooperation degree of multiple processes, short process transfer time, low labor intensity, high processing efficiency and good treatment effect.

Description of drawings

Fig. 1 is a structural schematic diagram of the agricultural seed screening and drying device proposed by the present invention.

Detailed ways

The content of the present invention will be described below in conjunction with specific embodiments.

As shown in Fig. 1, Fig. 1 is a schematic structural view of the agricultural seed screening and drying device proposed by the present invention.

With reference to Fig. 1, the agricultural seed screening and drying device that the present invention proposes, a kind of agricultural seed screening and drying device, comprise: screening mechanism, cleaning mechanism and drying mechanism; For gravel in the seeds, the cleaning mechanism is used to clean the sieved seeds; the drying mechanism is used to dry the cleaned seeds; the discharging mechanism is used to discharge the seeds.

The screening mechanism includes a screening cylinder 1, the screening cylinder 1 has a feed port and a discharge port, a vibrating screen 2 is arranged between the feed port and the discharge port, and the vibrating screen 2 is formed by vibrating The motor 3 is driven to vibrate up and down.

The cleaning mechanism includes a cleaning cylinder 4, and the cleaning cylinder 4 has a material inlet, a water inlet, an overflow and a material outlet.

The feed inlet of the cleaning cylinder 4 is connected with the discharge outlet of the screening cylinder 1 through a feeding hoist 5, and the water inlet of the cleaning cylinder 4 is connected with a water tank 7 through a water inlet pipe 6, and the water inlet pipe 6 is connected There is a water pump 8; the upper part of the water tank 7 is open, and is located below the discharge port of the cleaning cylinder 4.

A waste material frame 9 is arranged inside the water tank 7, and the waste material frame 9 has a waste material inlet, a waste material outlet, and a through hole communicating its internal space and external space.

The waste material inlet is connected to the overflow port of the cleaning cylinder 4 through the return pipe, and the aperture of the through hole is smaller than the particle diameter of the shriveled seeds.

The waste frame 9 is driven to move up and down by a first power unit 10, the first power unit 10 is connected to a slide block 11, and the slide block 11 is slidably connected with a slide rail 12, and the slide block 11 is powered by a second power unit. The device is driven to move horizontally along the slide rail 12 .

A baffle plate 13 is slidably connected to the discharge port of the cleaning cylinder 4 , and the material baffle plate 13 is driven to move horizontally by the third power device 14 .

The cleaning cylinder 4 is rotatably connected with a mounting rod 15 , and the mounting rod 15 is driven to rotate by a fourth power device 16 . The installation rod 15 is partly located in the cleaning cylinder 4 , and the outer periphery of the installation rod 15 located in the cleaning cylinder 4 is covered with a plurality of stirring blades 17 . The agitating blades 17 are arranged in an up-and-down dislocation manner, and a drive gear 18 is sheathed on the outer periphery of the installation rod 15 located outside the cleaning cylinder 4 . The driving gear 18 is meshed with a driven gear 19 , and the driven gear 19 is sleeved on the outer periphery of the material distribution rod 20 , and the lower end of the material distribution rod 20 is connected with a material distribution blade 21 .

The discharge mechanism includes a discharge conveyor belt 22, the discharge conveyor belt 22 is at least partly located between the cleaning cylinder 4 and the water tank 7, there is a gap between the discharge conveyor belt 22 and the distributing blade 21, and multiple a water hole.

The principle of this scheme is as follows: pour the seeds into the screening cylinder 1, the vibration motor 3 drives the vibrating screen 2 to vibrate up and down, the gravel mixed in the seeds is isolated outside the vibrating screen 2, and the seeds are received by the vibrating screen after passing through the vibrating screen. The material hoist 5 is lifted into the cleaning cylinder 4.

The water pump 8 pumps the cleaning medium in the water tank 7 into the cleaning cylinder 4 through the water inlet pipe 6, and the shriveled seeds float above the liquid level of the cleaning medium by buoyancy.

The fourth power unit 16 drives the mounting rod 15 to drive the stirring blade 17 to rotate, and the stirring blade 17 stirs the cleaning medium. Because the stirring blade 17 is arranged in a dislocation up and down on the mounting rod 15, the seeds are fully contacted with the cleaning medium, and the cleaning of the seeds is completed. At the same time, all the shriveled seeds are also allowed to float above the liquid level of the cleaning medium.

The water pump 8 continuously pumps the cleaning medium in the water tank 7 into the cleaning cylinder 4, and the liquid level of the cleaning medium in the cleaning cylinder 4 gradually increases. When the liquid level of the cleaning medium reaches the overflow port position of the cleaning cylinder 4, the shriveled seeds enter the return pipe along with the cleaning medium, and move into the waste material frame 9 along the return pipe.

After the shriveled seeds in the cleaning cylinder 4 are all removed, the water pump 8 is closed, and the third power unit 14 is opened, and the third power unit 14 drives the movement of the baffle plate 13 to expose the discharge port of the cleaning cylinder 4 .

The cleaning medium and seeds are moved to the discharge conveyor belt 22 through the discharge port by gravity. The discharge conveyor belt 22 is provided with a plurality of water holes through which the cleaning medium falls back into the water tank 7 .

When the fourth power unit 16 drives the installation rod 15 to rotate, the driving gear 18 on the installation rod 15 meshes with the driven gear 19, so that the material distribution rod 20 rotates, and then drives the material distribution blade 21 to rotate. Distributing blade 21 breaks up the seed that falls by cleaning tube 4 outlets during rotation, and seed is spread on the discharge conveyer belt 22 by distributing blade 21 motion.

The seeds move along the discharge conveyor belt 22, and are dried by the drying mechanism when passing through the drying mechanism. The cleaning medium remaining on the surface of the seeds is fully evaporated, and the seeds are discharged through the discharge conveyor belt 22.

During the cleaning and drying process for many times, the amount of shriveled seeds collected in the waste frame 9 increases gradually. For guaranteeing the separation effect to the shriveled seeds, the first power unit 10 can be started, and after the waste material frame 9 is separated from the water tank 7, it is allowed to stand for a period of time so that the cleaning medium remaining in the waste material frame 9 falls back in the water tank 7. Start the second power unit thereafter, waste material frame 9 is moved to water tank 7 one side with slide block 11, open the waste material outlet of waste material frame 9 afterwards, so that dry seed falls by waste material frame 9.

The drying mechanism in the above scheme includes an air supply mechanism 23 and an air supply pipe 24 connected to the air supply mechanism 23. A plurality of air outlets are arranged in a staggered manner on the air supply pipe 24, and the air outlet direction of the air outlet is perpendicular to the discharge conveyor belt 22. direction of transmission.

When the seeds move directly below the drying mechanism with the discharge conveyor belt 22, the air supply mechanism 23 blows air to the seeds through the air supply pipe 24, and the seeds evenly dispersed on the discharge conveyor belt 22 are fully dried by the air flow.

After the seeds fall from the discharge opening of the cleaning cylinder 4, they are piled up on the discharge conveyor belt 22. Although there is the distributing blade 21 to disperse it, there may still be uneven dispersion. That is: when the seeds are fed too quickly, the height of the stack is far greater than the thickness of the material distribution blade 21, and the seeds positioned on the upper part of the material distribution blade 21 may be re-stacked after passing through the material distribution blade 21, thereby affecting the drying effect of the drying mechanism. Therefore, in the specific design, a limiting plate 25 is arranged between the discharge port of the cleaning cylinder 4 and the material distribution blade 21, and the limiting plate 25 is arranged close to the discharge conveyor belt 22, and the length of the limiting plate 25 is not limited. Less than the width of the discharge conveyor belt 22. Through the limiting plate 25, the seeds distributed on the discharge conveyor belt 22 can be controlled within an appropriate thickness range, thereby ensuring the drying effect of the drying mechanism.

After the cleaning medium in the water tank 7 has cleaned the seeds several times, the turbidity of the cleaning medium increases, and the cleaning effect is greatly reduced. Therefore, a spray mechanism is provided between the distribution blade 21 and the drying mechanism. The seeds can be cleaned twice through the spray mechanism, which improves the cleaning effect.

In the actual design process, the spraying mechanism includes a clean water tank 26 and a spray pipe 27 connected with the clean water tank 26. A plurality of water outlets are arranged in a staggered manner on the spray pipe 27, and the water outlet direction of the water outlet is perpendicular to the The delivery direction of the outfeed conveyor belt 22.

In order to improve the drying efficiency of the seeds, the drying mechanism further includes a heating mechanism 28 connected to the air supply mechanism 23 for heating the air coming out of the air supply mechanism 23 . During the actual drying process, the output power of the heating mechanism 28 can be controlled to keep the temperature of the air coming out of the air supply mechanism 23 at 40°~50°, which can stabilize the yield of seeds while ensuring the heating efficiency.

For the convenience of collecting the shriveled seeds dropped by the waste frame 9, a waste collection frame 29 is provided below the movement stroke of the slide block 11 during specific design.

The agricultural seed screening and drying device proposed by the present invention can separate gravel and shriveled seeds from the seeds, and can clean the seeds during the separation process, and can also dry the seeds after cleaning, and The shriveled seeds can be collected and cleaned in time. The whole process has strong continuity, high cooperation degree of multiple processes, short process transfer time, low labor intensity, high processing efficiency and good treatment effect.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (7)

1. a kind of agricultural seed screening and drying device, it is characterised in that including：Screening mechanism, wiper mechanism and drier； The screening mechanism is used to isolate to be entrained in intraseminal blinding, and the wiper mechanism is used to carry out in the seed after screening Cleaning；The drier is used to the seed after cleaning being dried；Discharging mechanism is used to discharge to seed；

The screening mechanism includes sifting barrel, and the sifting barrel has a charging aperture and discharging opening, the charging aperture and discharging opening it Between be provided with vibratory sieve, the vibratory sieve is by driven by vibrating motors vertical tremor；

The wiper mechanism includes wash bowl, and the wash bowl has feeding mouth, water inlet, overfall and discharging opening；

The feeding mouth of the wash bowl is connected with the discharging opening of sifting barrel by charging hoister, and the water inlet of the wash bowl leads to Cross water inlet pipe and be connected with water tank, water pump is connected with the water inlet pipe；The water tank upper is open, and positioned at the discharging of wash bowl Below mouthful；Be provided with waste material frame in the water tank, the waste material frame has waste material import, waste outlet, connect its inner space and The through hole of exterior space；The waste material import is connected by the overfall of return pipe and wash bowl, and the aperture of the through hole is less than The particle diameter of shrivelled seed；The waste material frame is driven by the first power set and moved up and down, and first power set are connected to cunning On block, the sliding block slidably connects slide rail, sliding block slide rail horizontal movement as described in the second power set drives edge；It is described Striker plate is slidably connected in the discharging opening of wash bowl, the striker plate drives horizontal movement by the 3rd power set；

The wash bowl is rotatably connected to mounting rod, and the mounting rod is driven by the 4th power set and rotated, the installation bar portion Divide in wash bowl, the mounting rod periphery in wash bowl is set with multiple stirring vanes, and the stirring vane is in up and down Dislocation arrangement, the mounting rod periphery outside wash bowl are set with driving gear, and the driving gear is engaged with driven gear, institute State from wheel gear and be sleeved on material distributing rod periphery, the material distributing rod lower end is connected with sub-material blade；

The discharging mechanism includes discharge belt, and the discharge belt is at least partially disposed between wash bowl and water tank, institute Stating has gap between discharge belt and sub-material blade, which is provided with multiple water holes.

2. agricultural seed screening according to claim 1 and drying device, it is characterised in that the drier includes supplying Mechanism of qi structure and the air supply pipe being connected with gas supply mechanism, multiple air outlets are staggeredly distributed with the air supply pipe, the air outlet goes out Direction of transfer of the wind direction perpendicular to discharge belt.

3. agricultural seed screening according to claim 1 and drying device, it is characterised in that the discharging opening of the wash bowl Limiting plate is provided between sub-material blade, the limiting plate arranges that the length of the limiting plate is not less than close to discharge belt The width of discharge belt.

4. agricultural seed screening according to claim 1 and drying device, it is characterised in that the sub-material blade and drying Spraying mechanism is provided between mechanism.

5. agricultural seed screening according to claim 4 and drying device, it is characterised in that the spraying mechanism includes clear Water tank and the shower connected with filtered water tank, multiple delivery ports, the delivery port water side are staggeredly distributed with the shower To the direction of transfer perpendicular to discharge belt.

6. agricultural seed screening according to claim 2 and drying device, it is characterised in that the drier also includes Heating arrangements, the heating arrangements are connected with gas supply mechanism, for being heated up to the air come out by gas supply mechanism.

7. agricultural seed screening according to claim 1 and drying device, it is characterised in that the movement travel of the sliding block Lower section be provided with garbage collection frame.