Oilseed rape seed impurity removing and screening integrated device and method thereof

Abstract

The invention relates to the technical field of seed screening, in particular to a rape seed impurity removing and screening integrated device and a method thereof.The rape seed impurity removing and screening integrated device comprises a fine screening barrel and a coarse screening barrel, the coarse screening barrel is rotationally connected with a supporting mechanism through a coarse screening barrel rotating motor, a coarse screening net is arranged in the middle of the coarse screening barrel, and a fine screening mechanism is rotationally arranged in the fine screening barrel; the fine screening mechanism comprises a special-shaped fine screening frame and a fine screening frame driving motor, the fine screening frame driving motor is used for rotating the special-shaped fine screening frame, and one end of the fine screening barrel is connected with a saline water recycling box through a water pump. Rape seeds are put into the coarse screening barrel, coarse screening is carried out under the action of the coarse screening barrel, then main screening is carried out through a main mesh screen on the supporting mechanism, and finally dry fine screening is carried out under the action of a fine screening mechanism in the fine screening barrel, so that large-particle impurities in the rape seeds can be screened step by step; and the seeds are sterilized while being screened by the wet fine screen, so that the quality of the fine screen is improved.

Description

Technical Field

[0001] The present invention relates to a impurity removal and screening device and method, in particular to an integrated device and method for impurity removal and screening of rapeseed, belonging to the technical field of seed screening. Background Art

[0002] In order to remove impurities in rapeseed and improve the quality of rapeseed, it is necessary to sort rapeseed. After collection, the rapeseed not only contains large sundries such as soil clods, stems, leaves, and shrunken husks, but also fine soil that is difficult to separate. Therefore, it is necessary to screen the seeds to obtain pure seeds.

[0003] For rapeseed, the screening devices in the prior art can only perform single screening, that is, only screen once, and the screening is not thorough. Moreover, most of the existing cleaning equipment directly puts the seeds into the cleaning basin and then manually cleans them, resulting in poor cleaning effect and unable to meet the screening requirements of rapeseed, and thus unable to guarantee the screening quality. In addition, since the rapeseed needs to be sown after impurity removal, it is necessary to ensure the germination rate. There will be some germs and insect eggs attached to the seed surface, and the possibility of the seed being invaded by pests and diseases during germination and growth. The traditional screening device cannot select shriveled seeds, so it affects the quality of the seeds during the screening process.

[0004] Therefore, it is urgent to improve the rapeseed impurity removal and screening device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated device and method for impurity removal and screening of rapeseed. The rapeseed is put into the inside of the coarse screening barrel, and coarse screening is carried out under the action of the coarse screening barrel, then main screening is carried out through the main screen on the support mechanism, and finally dry fine screening is carried out under the action of the fine screening mechanism inside the fine screening barrel, which can gradually screen the rapeseed, and sterilize the seeds while screening through wet fine screening, improving the quality of fine screening.

[0006] In order to achieve the above purpose, the main technical solutions adopted by the present invention include: An integrated device for impurity removal and screening of rapeseed includes a fine screening barrel and a coarse screening barrel rotatably arranged on the fine screening barrel. The coarse screening barrel is rotationally connected to a support mechanism through a coarse screening barrel adjusting motor. A screen slot is opened in the middle of the coarse screening barrel, and a coarse screen is fixedly arranged on the screen slot. The support mechanism includes a support fixed connection block and a support movable connection block. The support fixed connection block and the support movable connection block are rotationally connected through the coarse screening barrel adjusting motor. A main screen support arm is fixedly arranged on the support fixed connection block, and a main screen is fixedly arranged on the main screen support arm. The main screen is arranged directly below the coarse screening barrel; An accurate screening mechanism is rotatably arranged inside the accurate screening barrel. The accurate screening mechanism includes a special-shaped accurate screening frame and an accurate screening frame driving motor. The accurate screening frame driving motor is used to rotate the special-shaped accurate screening frame. An accurate screening network is fixedly arranged on the special-shaped accurate screening frame. The accurate screening network includes an accurate screening large-hole screen, an accurate screening medium-hole screen, and an accurate screening small-hole screen. The aperture of the accurate screening large-hole screen is smaller than the diameter of rapeseed. A number of uniformly distributed heating rods are fixedly arranged inside the accurate screening large-hole screen, the accurate screening medium-hole screen, and the accurate screening small-hole screen; One end of the accurate screening barrel is connected to a brine recovery tank through a water pump, and the brine recovery tank is arranged directly below the accurate screening barrel.

[0007] Preferably, the output shaft of the accurate screening frame driving motor penetrates through one end of the accurate screening barrel and is fixedly connected to the accurate screening mechanism. The radius of the accurate screening large-hole screen matches the inner diameter of the accurate screening barrel and is rotatably arranged inside the accurate screening barrel. An accurate screening barrel feed port is opened at the upper end of the accurate screening barrel, and the accurate screening barrel feed port corresponds to the bottom of the support mechanism. A drainage notch is opened at one end of the accurate screening barrel away from the accurate screening frame driving motor, and the upper side of the drainage notch is lower than the upper port of the accurate screening barrel feed port; When adding brine through the water pump, the liquid level of the brine is lower than the upper side of the drainage notch.

[0008] Preferably, a rotating groove is opened on the upper side of the support movable connection block, and a driving motor groove is opened on the support movable connection block below the rotating groove. The driving motor groove communicates with the rotating groove; One side of the support movable connection block is connected to a support ring through a number of support guide rods, and the coarse screening barrel is rotatably arranged inside the rotating groove or the support ring.

[0009] Preferably, a coarse screening barrel rotating motor is fixedly arranged inside the driving motor groove. A driving gear is arranged at the output end of the coarse screening barrel rotating motor. One end of the coarse screening barrel is fixedly provided with an accurate screening barrel driven gear, and the accurate screening barrel driven gear is meshed with the driving gear. The driving gear is used to rotate the accurate screening barrel driven gear.

[0010] Preferably, an accurate screening barrel rotating motor is fixedly arranged on one side of the accurate screening barrel. The accurate screening barrel rotating motor is fixedly arranged on the brine recovery tank through a recovery tank connecting arm. A rotor connecting plate is arranged at the output end of the accurate screening barrel rotating motor. The rotor connecting plate is connected to the outer side of the accurate screening barrel through an accurate screening barrel fixing rod and fixed by a fastening bolt; A support arm is fixedly arranged on the rotor connecting plate. A driving motor fixing plate is fixedly arranged on the upper side of the support arm. The accurate screening frame driving motor is fixedly arranged on the driving motor fixing plate.

[0011] Preferably, a support connecting rod is connected to the bottom of the support mechanism, and the support connecting rod is fixedly connected to the support arm; A waste guiding block is fixedly arranged on the outer side surface of the support connecting rod, and a waste guiding groove corresponding to one end of the coarse screening barrel is formed in the waste guiding block.

[0012] Preferably, a vibration motor is fixedly arranged on the special-shaped fine screening frame inside the fine screening mechanism.

[0013] Preferably, the support movable connecting block is fixedly connected to the stator of the coarse screening barrel adjusting motor, and the rotor of the coarse screening barrel adjusting motor is fixedly connected to the support fixed connecting block; Symmetrically distributed main screen protection plates are arranged on the upper side surface of the main screen support arm, and the coarse screening barrel is rotatably arranged inside the main screen protection plates.

[0014] Preferably, the water pump is fixedly arranged on the upper side surface of the drive motor fixing plate. The water pump is communicated with the brine recovery tank through a water inlet pipe, and the water pump is communicated with the inside of the fine screening barrel through a water extraction pipe.

[0015] A screening method for an integrated rapeseed impurity removal and screening device includes the following steps: Step 1: Coarse screening treatment. Collect the threshed rapeseed for standby, and then adjust the coarse screening barrel by a certain angle through the coarse screening barrel adjusting motor, and the angle range is 10-20°; Then put the rapeseed into the inside of the coarse screening barrel, and start the coarse screening barrel rotating motor in the drive motor slot. Drive the fine screening barrel driven gear on the coarse screening barrel through the drive gear to make the coarse screening barrel rotate. During the rotation process, the rapeseed is screened into the support mechanism through the coarse screen. While the coarse screening barrel is rotating, large-particle impurities fall on the waste guiding block through the coarse screening barrel and fall into the waste bin through the waste guiding groove for main screening; Step 2: Main screening treatment. After the rapeseed passes through the coarse screen, it falls on the upper side surface of the main screen due to the action of gravity and falls into the inside of the fine screening barrel through the main screen; Due to the certain mass of the rapeseed, the seeds that do not pass through the main screen for the first time will bounce on the surface of the main screen and finally enter the inside of the fine screening barrel through the main screen, and the residual impurities on the main screen are cleaned; Step 3: Fine screening treatment. After passing through the main screen filtration, the rapeseed and small-particle impurities will fall into the vibration motor together for dry fine screening and wet fine screening; The dry fine screening is specifically as follows: The special-shaped fine screening frame is rotated by the fine screening frame driving motor, and the opening of the special-shaped fine screening frame is upward. After the rapeseeds and small particle impurities enter the interior of the fine screening barrel, they fall on the fine screening mesh group. The impurities with a diameter smaller than the fine screening frame driving motor and a greater gravity enter the interior of the fine screening barrel. At the same time, the special-shaped fine screening frame is rotated to make the screening more thorough; The wet fine screening is specifically as follows: Brine is added to the interior of the fine screening barrel through a water pump, and the liquid level of the added liquid reaches the drainage notch. The rapeseeds and shriveled seeds after dry fine screening float on the brine surface under the action of buoyancy; Then the fine screening frame driving motor is started to rotate the special-shaped fine screening frame. During the rotation process, the large-hole fine screening mesh first rotates upward and covers the rapeseeds. When the medium-hole fine screening mesh rotates to the directly above the seeds, the shriveled seeds and the impurities with a lighter mass will still be in a floating state through the medium-hole fine screening mesh; Next, the fine screening barrel rotation motor is started to tilt the fine screening barrel, and the brine is poured into the interior of the brine recovery box through the drainage notch. The shriveled seeds and the impurities with a lighter mass enter the interior of the brine recovery box together with the brine, completing the wet fine screening; Step 4: Drying treatment. After the screening is completed, the rapeseeds after fine screening are collected onto the fine screening mesh group by the fine screening frame driving motor, and then the rapeseeds are dried by the heating rods inside the fine screening mesh group; Step 5: Collection. After drying, the rapeseeds can be collected.

[0016] The present invention has at least the following beneficial effects: 1. When the rapeseeds and small particle impurities enter the interior of the fine screening barrel together, the small particle impurities with a greater gravity directly enter below the fine screening mechanism. After adding brine, the impurities with a smaller density, such as shriveled rapeseeds, all float on the brine surface. At this time, the special-shaped fine screening frame is driven by the fine screening frame driving motor to rotate. The large-hole fine screening mesh on the fine screening mesh group first rotates to the directly above the seeds. As the special-shaped fine screening frame rotates, the medium-hole fine screening mesh will squeeze the seeds floating on the brine surface downward. Since the aperture of the fine screening mesh group is smaller than the diameter of the high-quality seeds, the shriveled and defective seeds will re-float on the brine surface through the fine screening mesh group. Then, the fine screening barrel is tilted to pour out the brine. Therefore, the rapeseeds can be gradually filtered, improving the quality of fine screening.

[0017] 2. Add brine into the inside of the fine sieve barrel through a water pump until the liquid level of the added liquid reaches the drainage notch. The rapeseeds after dry fine screening and the shriveled seeds float on the brine surface under the action of buoyancy. Then, start the fine sieve frame driving motor to rotate the special-shaped fine sieve frame. During the rotation, the large-hole fine sieve screen first rotates upward and covers the rapeseeds. When the medium-hole fine sieve screen rotates to directly above the seeds, the shriveled seeds and the lighter impurities will still be in a floating state and pass through the medium-hole fine sieve screen. By rotating the special-shaped fine sieve frame multiple times by the fine sieve frame driving motor, the purpose of cleaning the rapeseeds is achieved. After the cleaning and impurity removal are completed, start the fine sieve barrel rotating motor to tilt the fine sieve barrel, and pour the brine into the inside of the brine recovery tank through the drainage notch. The shriveled seeds and the lighter impurities enter the inside of the brine recovery tank along with the brine, completing the wet fine screening.

[0018] 3. For the dust and soil attached to the rapeseeds, they can also be removed through wet fine screening. By performing wet fine screening with brine, on the one hand, the brine has a certain sterilizing effect, which can kill some germs and insect eggs attached to the seed surface, reducing the possibility of the seeds being attacked by pests and diseases during germination and growth, and can prevent seedling diseases to a certain extent. On the other hand, it can increase the density to enhance the buoyancy, facilitating the wet fine screening of rapeseeds, and can also clean the rapeseeds, improving the appearance of the rapeseeds.

[0019] 4. A coarse sieve barrel rotating motor is fixedly arranged inside the driving motor slot. After the coarse sieve barrel rotating motor is started, it drives the coarse sieve barrel to rotate through the driving gear. After the coarse sieve barrel rotates, the rapeseeds inside the coarse sieve barrel enter the inside of the fine sieve barrel through the coarse sieve mesh on the sieve slot. The structure is simple, improving the efficiency of impurity removal. A waste guiding block is fixedly arranged on the support connecting rod. After the coarse sieve barrel tilts, the filtered impurities slide out through the waste guiding groove on the waste guiding block, facilitating the unified recovery and cleaning of the impurities, saving a large amount of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 is a three-dimensional view of the present invention; Figure 2 is a partial cross-section of the present invention Figure 1 ; Figure 3 is the structure of the fine sieve mechanism of the present invention Figure 1 ; Figure 4 is the structure of the fine sieve mechanism of the present invention Figure 2 ; Figure 5 is the support mechanism structure of the present invention Figure 1 ; Figure 6 is the support mechanism structure of the present invention Figure 2 ; Figure 7 is the three-dimensional view of the coarse sieve barrel of the present invention; Figure 8 is the partial structure diagram of the present invention; Figure 9 is the partial cross-section of the present invention Figure 2 ; Figure 10 is the front view of the present invention.

[0021] In the figure, 1. fine sieve barrel; 101. fine sieve barrel feed inlet; 102. drainage notch; 2. coarse sieve barrel; 201. mesh sieve groove; 202. coarse sieve mesh; 203. fine sieve barrel driven gear; 3. fine sieve mechanism; 301. special-shaped fine sieve frame; 302. fine sieve frame drive motor; 303. fine sieve network; 3031. fine sieve large-hole mesh sieve; 3032. fine sieve medium-hole mesh sieve; 3033. fine sieve small-hole mesh sieve; 304. heating rod; 4. support mechanism; 401. support fixed connection block; 402. support movable connection block; 403. coarse sieve barrel adjustment motor; 404. drive motor slot; 405. main sieve support arm; 406. main mesh sieve; 407. main sieve protection plate; 408. support connecting rod; 409. rotating groove; 410. support guide rod; 411. support ring; 5. coarse sieve barrel rotating motor; 501. drive gear; 6. fine sieve barrel rotating motor; 601. rotor connecting plate; 602. fine sieve barrel fixing rod; 603. fastening bolt; 604. support arm; 605. drive motor fixing plate; 606. recovery box connecting arm; 7. water pump; 701. water inlet pipe; 702. water extraction pipe; 8. waste guide block; 801. waste guide groove; 9. brine recovery box; 10. vibration motor. Detailed implementation mode

[0022] The following will cooperate with the drawings and embodiments to detail the implementation mode of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0023] As Figures 1-10As shown in the figure, the integrated device for impurity removal and screening of rapeseed provided in this embodiment includes a fine screening barrel 1 and a coarse screening barrel 2 rotatably arranged on the above-mentioned fine screening barrel 1. The coarse screening barrel 2 is rotationally connected to a support mechanism 4 through a coarse screening barrel adjustment motor 403. A screen slot 201 is opened in the middle of the coarse screening barrel 2, and a coarse screen 202 is fixedly arranged on the screen slot 201. The support mechanism 4 includes a support fixed connection block 401 and a support movable connection block 402. The support fixed connection block 401 and the support movable connection block 402 are rotationally connected through the coarse screening barrel adjustment motor 403. A main screen support arm 405 is fixedly arranged on the support fixed connection block 401, and a main screen 406 is fixedly arranged on the main screen support arm 405. The main screen 406 is arranged directly below the coarse screening barrel 2. The coarse screening barrel 2 is arranged on the support movable connection block 402. That is to say, after the coarse screening barrel adjustment motor 403 is started, the support movable connection block 402 can drive the coarse screening barrel 2 to rotate. The support movable connection block 402 is fixedly connected to the stator of the coarse screening barrel adjustment motor 403, and the rotor of the coarse screening barrel adjustment motor 403 is fixedly connected to the support fixed connection block 401. When the coarse screening barrel adjustment motor 403 is started, since the stator is fixed to the support movable connection block 402 and the rotor is fixed to the support fixed connection block 401, relative movement occurs between the stator and the rotor during the operation of the motor, so that the support movable connection block 402 rotates relative to the support fixed connection block 401, and then drives the connected coarse screening barrel 2 to rotate. Symmetrically distributed main screen protection plates 407 are arranged on the upper side of the main screen support arm 405. The coarse screening barrel 2 is rotationally arranged through a support ring 411 and a rotation slot 409, and is located between the main screen protection plates 407. The coarse screening barrel 2 is rotationally connected through the support ring 411 and the rotation slot 409. The support ring 411 is fixedly connected to the support movable connection block 402 through a support guide rod 410 to ensure the stability of the coarse screening barrel 2 during rotation. While removing impurities from rapeseed, it can remove larger impurities in rapeseed, such as straw mixed in rapeseed. The structure is simple and the impurity removal efficiency is high. In addition, once larger strip-shaped impurities pass through the coarse screen 202 and enter the inside of the main screen 406, further impurity removal will be carried out to ensure the purpose of filtering larger strip-shaped impurities. Therefore, the purpose of coarse screening and main screening of rapeseed is achieved through the coarse screen 202 and the main screen 406; After the main screening is completed, the rapeseed enters the interior of the fine screening barrel 1 through the main mesh sieve 406. A fine screening mechanism 3 is rotationally arranged inside the fine screening barrel 1. The fine screening mechanism 3 includes a special-shaped fine screening frame 301 and a fine screening frame driving motor 302. The fine screening frame driving motor 302 is used to rotate the special-shaped fine screening frame 301. A fine screening network 303 is fixedly arranged on the special-shaped fine screening frame 301. The fine screening network 303 includes a fine screening large-hole mesh sieve 3031, a fine screening medium-hole mesh sieve 3032, and a fine screening small-hole mesh sieve 3033. The aperture of the fine screening large-hole mesh sieve 3031 is smaller than the diameter of the rapeseed. The rapeseed will gather on the fine screening mechanism 3 inside the fine screening barrel 1 and be filtered through the fine screening network 303. For small-particle impurities in the rapeseed, such as fine soil and dust, etc., they will fall into the interior of the fine screening barrel 1 through the fine screening network 303 to achieve the purpose of screening; For the dust and soil attached to the rapeseed, they can also be removed by wet fine screening. By using salt water for wet fine screening, on the one hand, the salt water has a certain bactericidal effect, which can kill some germs and insect eggs attached to the seed surface, reducing the possibility of the seeds being invaded by pests and diseases during germination and growth, and can prevent seedling diseases to a certain extent. On the other hand, it can increase the buoyancy by increasing the density, which is convenient for wet fine screening of rapeseed, and can also clean the rapeseed to improve the appearance of the rapeseed. Specifically: One end of the fine screening barrel 1 is connected to a salt water recovery tank 9 through a water pump 7. The salt water recovery tank 9 is arranged directly below the fine screening barrel 1. The output shaft of the fine screening frame driving motor 302 penetrates through one end of the fine screening barrel 1 and is fixedly connected to the fine screening mechanism 3. The radius of the fine screening large-hole mesh sieve 3031 matches the inner diameter of the fine screening barrel 1 and is rotationally arranged inside the fine screening barrel 1. A fine screening barrel feed port 101 is opened at the upper end of the fine screening barrel 1. The fine screening barrel feed port 101 corresponds to the bottom of the support mechanism 4. A drainage notch 102 is opened at one end of the fine screening barrel 1 away from the fine screening frame driving motor 302. The upper side of the drainage notch 102 is lower than the upper port of the fine screening barrel feed port 101. When adding salt water through the water pump 7, the liquid level of the salt water is lower than the upper side of the drainage notch 102. Add salt water to the interior of the fine screening barrel 1 through the water pump 7 until the liquid level of the added liquid reaches the drainage notch 102. The rapeseed after dry fine screening and the shriveled seeds will float on the salt water surface under the action of buoyancy. Then start the fine screening frame driving motor 302 to rotate the special-shaped fine screening frame 301. During the rotation process, the fine screening large-hole mesh sieve 3031 first rotates upward to cover the rapeseed. When the fine screening medium-hole mesh sieve 3032 rotates to the directly above the seeds, the shriveled seeds and the impurities with lighter mass will still be in a floating state through the fine screening medium-hole mesh sieve 3032, and the purpose of cleaning the rapeseed can be achieved by rotating the special-shaped fine screening frame 301 multiple times by the fine screening frame driving motor 302; After the cleaning and impurity removal are completed, start the rotating motor 6 of the fine screening barrel to tilt the fine screening barrel 1, and pour the brine into the interior of the brine recovery tank 9 through the drainage notch 102. The shriveled seeds and the lighter impurities enter the interior of the brine recovery tank 9 together with the brine, completing the wet fine screening; Since moisture will adhere to the outer surface of the rapeseed after wet fine screening, a number of uniformly distributed heating rods 304 are fixedly arranged inside the fine screening large-hole screen 3031, the fine screening medium-hole screen 3032, and the fine screening small-hole screen 3033. Therefore, start the heating rods 304 inside the fine screening network 303 to heat the fine screening network 303 to achieve the purpose of drying the rapeseed; Moreover, the fine screening network 303 is provided with a fine screening large-hole screen 3031, a fine screening medium-hole screen 3032, and a fine screening small-hole screen 3033. The specific principle is that when the rapeseed and small-particle impurities enter the interior of the fine screening barrel 1 together, the small-particle impurities with greater gravity directly enter below the fine screening mechanism 3. After adding brine, the impurities with smaller density, such as shriveled rapeseed, float on the liquid surface of the brine. At this time, drive the special-shaped fine screening frame 301 to rotate by the fine screening frame drive motor 302. The fine screening large-hole screen 3031 on the fine screening network 303 first rotates directly above the seeds. As the special-shaped fine screening frame 301 rotates, the fine screening medium-hole screen 3032 will squeeze the seeds floating on the brine surface downward. Since the aperture of the fine screening network 303 is smaller than the diameter of high-quality seeds, the shriveled and incomplete seeds will float on the brine surface again through the fine screening network 303, and then tilt the fine screening barrel 1 to pour out the brine. Therefore, the rapeseed can be gradually filtered to improve the quality of fine screening.

[0024] Furthermore, in order to facilitate the rough screening of rapeseed and at the same time facilitate the cleaning of impurities, as Figure 1 、 Figure 5 and Figure 6 shown, a rotating groove 409 is provided on the upper side of the supporting movable connection block 402. Below the rotating groove 409, a drive motor groove 404 is provided on the supporting movable connection block 402. The drive motor groove 404 is communicated with the rotating groove 409. A rotating groove 409 is provided on the supporting movable connection block 402. The rough screening barrel 2 is placed on the rotating groove 409. One side of the supporting movable connection block 402 is connected with a supporting ring 411 through a number of supporting guide rods 410. The rough screening barrel 2 is rotatably arranged inside the rotating groove 409 or the supporting ring 411. In order to improve the rotational stability of the rough screening barrel 2, a supporting ring 411 is connected to the supporting movable connection block 402 through a supporting guide rod 410. Therefore, the rough screening barrel 2 can rotate on the supporting movable connection block 402 and remove impurities from the rapeseed during the rotation process; To facilitate the rotation of the coarse sieve barrel 2 and improve the sieving efficiency, a coarse sieve barrel rotating motor 5 is fixedly arranged inside the driving motor slot 404. A driving gear 501 is arranged at the output end of the coarse sieve barrel rotating motor 5. One end of the coarse sieve barrel 2 is fixedly provided with a fine sieve barrel driven gear 203. The fine sieve barrel driven gear 203 is meshed and connected with the driving gear 501. The driving gear 501 is used to rotate the fine sieve barrel driven gear 203. A coarse sieve barrel rotating motor 5 is fixedly arranged inside the driving motor slot 404. After the coarse sieve barrel rotating motor 5 is started, the driving gear 501 drives the coarse sieve barrel 2 to rotate. After the coarse sieve barrel 2 rotates, the rapeseed inside the coarse sieve barrel 2 enters the inside of the fine sieve barrel 1 through the coarse sieve mesh 202 on the sieve mesh slot 201. The structure is simple and the impurity removal efficiency is improved; Moreover, the bottom of the support mechanism 4 is connected with a support connecting rod 408. The support connecting rod 408 is fixedly connected with the support arm 604. A waste material guiding block 8 is fixedly arranged on the outer side surface of the support connecting rod 408. A waste material guiding groove 801 corresponding to one end of the coarse sieve barrel 2 is opened on the waste material guiding block 8. A waste material guiding block 8 is fixedly arranged on the support connecting rod 408. After the coarse sieve barrel 2 is tilted, the filtered impurities slide out through the waste material guiding groove 801 on the waste material guiding block 8, which is convenient for the unified recycling and cleaning of the impurities, saving a large amount of manpower and material resources; Furthermore, as Figure 8 and Figure 9 shown, a fine sieve barrel rotating motor 6 is fixedly arranged on one side of the fine sieve barrel 1. The fine sieve barrel rotating motor 6 is fixedly arranged on the brine recovery tank 9 through the recovery tank connecting arm 606. The output end of the fine sieve barrel rotating motor 6 is provided with a rotor connecting plate 601. The rotor connecting plate 601 is connected with the outer side surface of the fine sieve barrel 1 through the fine sieve barrel fixing rod 602 and fixed by the fastening bolt 603. The fine sieve barrel rotating motor 6 is fixedly arranged on the brine recovery tank 9 through the recovery tank connecting arm 606, improving the overall structural strength. After the fine sieve barrel rotating motor 6 is started, the output end of the fine sieve barrel rotating motor 6 drives the fine sieve barrel fixing rod 602 through the rotor connecting plate 601, and then drives the fine sieve barrel 1 to tilt downward. Therefore, the brine and the impurities floating on the brine can be removed. The rapeseed can also be washed by the brine. The structure is simple and the sieving and impurity removal efficiency is greatly improved; A support arm 604 is fixedly arranged on the rotor connecting plate 601. A driving motor fixing plate 605 is fixedly arranged on the upper side surface of the support arm 604. The fine sieve frame driving motor 302 is fixedly arranged on the driving motor fixing plate 605. The fine sieve frame driving motor 302 is fixedly arranged on the driving motor fixing plate 605. When the rotor connecting plate 601 rotates, it drives the fine sieve barrel 1 and the fine sieve frame driving motor 302 on the driving motor fixing plate 605 to rotate simultaneously, which is synchronous and improves the impurity removal efficiency.

[0025] Still further, as Figure 4As shown, a vibration motor 10 is fixedly arranged inside the fine screening mechanism 3 on the special-shaped fine screening frame 301. By starting the vibration motor 10, it can prevent rapeseed from getting stuck in the mesh holes and improve the screening efficiency. In addition, as Figure 1 and Figure 9 shown, the water pump 7 is fixedly arranged on the upper side of the drive motor fixing plate 605. The water pump 7 is connected to the brine recovery tank 9 through the water inlet pipe 701, and the water pump 7 is connected to the inside of the fine screening barrel 1 through the water extraction pipe 702. By pumping the brine solution inside the brine recovery tank 9 with the water pump 7, it can be recycled and the utilization rate of resources can be improved.

[0026] As Figures 1-10 shown, the screening method of the rapeseed impurity removal and screening integrated device provided in this embodiment includes the following steps: Step 1: Coarse screening process. Collect the threshed rapeseed for standby, and then adjust the coarse screening barrel 2 by a certain angle through the coarse screening barrel adjusting motor 403, and the angle range is 10 - 20°; Then put the rapeseed into the inside of the coarse screening barrel 2, and start the coarse screening barrel rotating motor 5 inside the drive motor slot 404. Drive the fine screening barrel driven gear 203 on the coarse screening barrel 2 through the drive gear 501 to make the coarse screening barrel 2 rotate. During the rotation, the rapeseed is screened into the inside of the support mechanism 4 through the coarse screening mesh 202. While the coarse screening barrel 2 is rotating, the large-particle impurities fall onto the waste guiding block 8 through the coarse screening barrel 2 and fall into the waste bin through the waste guiding groove 801 for main screening; Step 2: Main screening process. After the rapeseed passes through the coarse screening mesh 202, it falls onto the upper side of the main mesh sieve 406 due to gravity and then falls into the inside of the fine screening barrel 1 through the main mesh sieve 406; Because the rapeseed has a certain mass, the seeds that did not pass through the main mesh sieve 406 for the first time will bounce on the surface of the main mesh sieve 406 and finally enter the inside of the fine screening barrel 1 through the main mesh sieve 406, and the residual impurities on the main mesh sieve 406 are cleaned; Step 3: Fine screening process. After passing through the main mesh sieve 406, the rapeseed and small-particle impurities will fall into the inside of the vibration motor 10 together for dry fine screening and wet fine screening; The dry fine screening is specifically as follows: Rotate the special-shaped fine screening frame 301 through the fine screening frame drive motor 302 and make the opening of the special-shaped fine screening frame 301 face upward. After the rapeseed and small-particle impurities enter the inside of the fine screening barrel 1, they fall onto the fine screening network 303. The impurities with a diameter smaller than the fine screening frame drive motor 302 and a larger gravity enter the inside of the fine screening barrel 1. At the same time, rotate the special-shaped fine screening frame 301 to make the screening more sufficient; The wet fine screening is specifically as follows: brine is added into the interior of the fine screening barrel 1 through the water pump 7, and the liquid level of the added liquid reaches the drainage notch 102. The rapeseeds after dry fine screening and the shriveled seeds float on the brine liquid surface under the action of buoyancy; Then, start the fine screening frame driving motor 302 to rotate the special-shaped fine screening frame 301. During the rotation process, the large-hole fine screening mesh 3031 of the fine screening first rotates upward and covers the rapeseeds. When the medium-hole fine screening mesh 3032 of the fine screening rotates to directly above the seeds, the shriveled seeds and the impurities with lighter mass will still be in a floating state and pass through the medium-hole fine screening mesh 3032; Next, start the fine screening barrel rotating motor 6 to tilt the fine screening barrel 1, and pour the brine into the interior of the brine recovery tank 9 through the drainage notch 102. The shriveled seeds and the impurities with lighter mass enter the interior of the brine recovery tank 9 together with the brine, completing the wet fine screening; Step 4: Drying treatment. After the screening is completed, the rapeseeds after fine screening are collected onto the fine screening network 303 through the fine screening frame driving motor 302, and then the rapeseeds are dried by the heating rod 304 inside the fine screening network 303; Step 5: Collection. After drying, the rapeseeds can be collected.

[0027] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0028] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in such a commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0029] The foregoing description has shown and described several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in the relevant field. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An integrated device for impurity removal and screening of rapeseed seeds, comprising a fine screening barrel (1) and a coarse screening barrel (2) rotatably arranged on the above-mentioned fine screening barrel (1), characterized in that, The coarse screening barrel (2) is rotationally connected to a support mechanism (4) through a coarse screening barrel adjustment motor (403). A mesh screening groove (201) is formed in the middle of the coarse screening barrel (2), and a coarse screening mesh (202) is fixedly arranged on the mesh screening groove (201). The support mechanism (4) includes a support fixed connection block (401) and a support movable connection block (402). The support fixed connection block (401) and the support movable connection block (402) are rotationally connected through the coarse screening barrel adjustment motor (403). A main screening support arm (405) is fixedly arranged on the support fixed connection block (401), and a main mesh screen (406) is fixedly arranged on the main screening support arm (405). The main mesh screen (406) is arranged directly below the coarse screening barrel (2). A fine screening mechanism (3) is rotatably arranged inside the fine screening barrel (1). The fine screening mechanism (3) includes a special-shaped fine screening frame (301) and a fine screening frame driving motor (302). The fine screening frame driving motor (302) is used to rotate the special-shaped fine screening frame (301). A fine screening network (303) is fixedly arranged on the special-shaped fine screening frame (301). The fine screening network (303) includes a fine screening large-hole mesh screen (3031), a fine screening medium-hole mesh screen (3032), and a fine screening small-hole mesh screen (3033). The aperture of the fine screening large-hole mesh screen (3031) is smaller than the diameter of rapeseeds. A number of uniformly distributed heating rods (304) are fixedly arranged inside the fine screening large-hole mesh screen (3031), the fine screening medium-hole mesh screen (3032), and the fine screening small-hole mesh screen (3033). One end of the fine screening barrel (1) is connected to a brine recovery tank (9) through a water pump (7). The brine recovery tank (9) is arranged directly below the fine screening barrel (1).

2. The integrated device for impurity removal and screening of rapeseed seeds according to claim 1, wherein: The output shaft of the fine screening frame driving motor (302) penetrates through one end of the fine screening barrel (1) and is fixedly connected to the fine screening mechanism (3). The radius of the fine screening large-hole mesh screen (3031) matches the inner diameter of the fine screening barrel (1) and is rotatably arranged inside the fine screening barrel (1). A fine screening barrel feed inlet (101) is formed at the upper end of the fine screening barrel (1). The fine screening barrel feed inlet (101) corresponds to the bottom of the support mechanism (4). A drainage notch (102) is formed at one end of the fine screening barrel (1) away from the fine screening frame driving motor (302). The upper side of the drainage notch (102) is lower than the upper port of the fine screening barrel feed inlet (101). When adding brine through the water pump (7), the liquid level of the brine is lower than the upper side of the drainage notch (102).

3. An integrated device for impurity removal and screening of rapeseed seeds according to claim 1, characterized in that: A rotating groove (409) is formed on the upper side of the support movable connection block (402). A driving motor groove (404) is formed on the support movable connection block (402) below the rotating groove (409). The driving motor groove (404) communicates with the rotating groove (409). One side of the supporting movable connecting block (402) is connected with a supporting ring (411) through a plurality of supporting guide rods (410), and the coarse screening barrel (2) is rotatably arranged inside the rotating groove (409) or the supporting ring (411).

4. An integrated device for impurity removal and screening of rapeseed seeds according to claim 3, wherein: A coarse screening barrel rotating motor (5) is fixedly arranged inside the driving motor groove (404). The output end of the coarse screening barrel rotating motor (5) is provided with a driving gear (501). One end of the coarse screening barrel (2) is fixedly provided with a fine screening barrel driven gear (203). The fine screening barrel driven gear (203) is meshed and connected with the driving gear (501), and the driving gear (501) is used for rotating the fine screening barrel driven gear (203).

5. An integrated device for impurity removal and screening of rapeseed seeds according to claim 1, characterized in that: One side of the fine screening barrel (1) is fixedly provided with a fine screening barrel rotating motor (6). The fine screening barrel rotating motor (6) is fixedly arranged on the brine recovery tank (9) through a recovery tank connecting arm (606). The output end of the fine screening barrel rotating motor (6) is provided with a rotor connecting plate (601). The rotor connecting plate (601) is connected with the outer side surface of the fine screening barrel (1) through a fine screening barrel fixing rod (602) and fixed by a fastening bolt (603); A supporting arm (604) is fixedly arranged on the rotor connecting plate (601). A driving motor fixing plate (605) is fixedly arranged on the upper side surface of the supporting arm (604). The fine screening frame driving motor (302) is fixedly arranged on the driving motor fixing plate (605).

6. An integrated device for impurity removal and screening of rapeseed seeds according to claim 5, characterized in that: The bottom of the supporting mechanism (4) is connected with a supporting connecting rod (408), and the supporting connecting rod (408) is fixedly connected with the supporting arm (604); A waste material guiding block (8) is fixedly arranged on the outer side surface of the supporting connecting rod (408). A waste material guiding groove (801) corresponding to one end of the coarse screening barrel (2) is arranged on the waste material guiding block (8).

7. An integrated device for impurity removal and screening of rapeseed seeds according to claim 1, characterized in that: A vibration motor (10) is fixedly arranged on the special-shaped fine screening frame (301) inside the fine screening mechanism (3).

8. An integrated device for impurity removal and screening of rapeseed seeds according to claim 1, characterized in that: The supporting movable connecting block (402) is fixedly connected with the stator of the coarse screening barrel adjusting motor (403), and the rotor of the coarse screening barrel adjusting motor (403) is fixedly connected with the supporting fixed connecting block (401); Symmetrically distributed main screen protection plates (407) are arranged on the upper side surface of the main screen supporting arm (405), and the coarse screening barrel (2) is rotatably arranged inside the main screen protection plates (407).

9. The integrated device for impurity removal and screening of rapeseed seeds according to claim 5, wherein: A water pump (7) is fixedly arranged on the upper side surface of the driving motor fixing plate (605). The water pump (7) is communicated with the brine recovery tank (9) through a water inlet pipe (701), and the water pump (7) is communicated with the inside of the fine screening barrel (1) through a water extraction pipe (702).

10. A screening method for an integrated device for impurity removal and screening of rapeseed seeds, characterized in that, Using a rape seed impurity removal and screening integrated device according to claim 1, comprising the following steps: Step 1: Coarse screening treatment. Collect the threshed rape seeds for standby, and then adjust the coarse screening barrel (2) by a certain angle through the coarse screening barrel adjusting motor (403), and the angle range is 10 - 20°; Then, put the rapeseed into the inside of the coarse sieve barrel (2), and start the coarse sieve barrel rotation motor (5) inside the drive motor slot (404). Drive the fine sieve barrel driven gear (203) on the coarse sieve barrel (2) through the drive gear (501) to make the coarse sieve barrel (2) rotate. During the rotation, the rapeseed is screened through the coarse sieve mesh (202) into the inside of the support mechanism (4). While the coarse sieve barrel (2) is rotating, large-particle impurities fall onto the waste guide block (8) through the coarse sieve barrel (2) and fall into the waste bin through the waste guide groove (801) for primary screening; Step 2: Primary screening process. After passing through the coarse sieve mesh (202), the rapeseed falls onto the upper side of the main mesh sieve (406) due to gravity and then falls into the inside of the fine sieve barrel (1) through the main mesh sieve (406); Due to the certain mass of the rapeseed, the seeds that did not pass through the main mesh sieve (406) initially will bounce on the surface of the main mesh sieve (406) and finally enter the inside of the fine sieve barrel (1) through the main mesh sieve (406), and the residual impurities on the main mesh sieve (406) are cleaned; Step 3: Fine screening process. After being filtered by the main mesh sieve (406), the rapeseed and small-particle impurities will fall into the inside of the vibration motor (10) together for dry fine screening and wet fine screening; The dry fine screening is specifically as follows: Rotate the special-shaped fine sieve frame (301) through the fine sieve frame drive motor (302) and make the opening of the special-shaped fine sieve frame (301) face upward. After the rapeseed and small-particle impurities enter the inside of the fine sieve barrel (1), they fall onto the fine sieve network (303). The impurities with a diameter smaller than the fine sieve frame drive motor (302) and a greater gravity enter the inside of the fine sieve barrel (1), and at the same time, rotate the special-shaped fine sieve frame (301) to make the screening more thorough; The wet fine screening is specifically as follows: Add brine into the inside of the fine sieve barrel (1) through the water pump (7), and the liquid level of the added liquid reaches the drainage notch (102). The rapeseed and shriveled seeds after dry fine screening float on the brine surface under the action of buoyancy; Then start the fine sieve frame drive motor (302) to make the special-shaped fine sieve frame (301) rotate. During the rotation, the large-hole fine sieve mesh (3031) first rotates upward and covers the rapeseed. When the medium-hole fine sieve mesh (3032) rotates to the directly above the seeds, the shriveled seeds and lighter impurities will still be in a floating state through the medium-hole fine sieve mesh (3032); Then start the fine sieve barrel rotation motor (6) to make the fine sieve barrel (1) tilt, and pour the brine into the inside of the brine recovery tank (9) through the drainage notch (102). The shriveled seeds and lighter impurities enter the inside of the brine recovery tank (9) together with the brine to complete the wet fine screening; Step 4: Drying process. After the screening is completed, collect the fine-screened rapeseed onto the fine sieve network (303) through the fine sieve frame drive motor (302), and then dry the rapeseed through the heating rod (304) inside the fine sieve network (303); Step 5: Collection. After drying, collect the rapeseed.

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