Continuous screening device for soil microbial strains

Abstract

The utility model relates to the field of microbiological devices, in particular to a continuous screening device for soil microbial strains, which comprises a screening cylinder, a stirring device, a first scraping mechanism, a cleaning mechanism, an elastic moving mechanism, a second scraping mechanism and an automatic liquid suction device. A connecting rod drives a scraping plate to rotate along the inner wall of the screening barrel, so that soil attached to the inner wall of the screening barrel is scraped off, the soil is accumulated in a first guide groove, and when the scraping plate makes contact with a baffle, the first guide groove makes staggered contact with a second guide groove at the moment, so that the baffle is driven to move towards the center of the screening barrel; soil in a first guide groove is scraped into a second guide groove, when a scraping plate is separated from a baffle, the baffle is driven to reset under the action of a supporting spring, then the outer wall of a brush roller makes contact with the second guide groove, the brush roller cleans the soil in the second guide groove at the moment, and the soil falls into a screening barrel again; therefore, the soil and the nutrient solution are fully stirred.

Description

Technical Field

[0001] The utility model relates to the field of microbiology devices, in particular to a soil microbial strain continuous screening device. Background Art

[0002] Soil microbial bacteria are the most numerous microorganisms in the soil, usually accounting for 70% to 90% of the total soil microorganisms. They play an important role in the soil, including material circulation and soil health. With China's modernization, a series of environmental problems have arisen, among which soil pollution is one of the typical problems. The relatively mature contaminated soil remediation technologies developed in China can generally be divided into physical remediation, chemical remediation and biological remediation. Bioremediation technology is a newly developed technology with high efficiency, low cost and great development potential. Usually, a continuous screening device is required when screening soil microorganisms.

[0003] Chinese patent publication number CN221522552U discloses a device for continuous screening of soil microbial strains. A liquid pump is mounted on the outer wall of a cylinder and is used to extract nutrient solution from the cylinder. A liquid suction tube is rotatably mounted in the cylinder, one end of the liquid suction tube is connected to the liquid suction pump, and the other end is connected to a liquid suction head. A drive device is mounted in the cylinder and is transmission-connected to the liquid suction tube. The drive device can drive the liquid suction tube to rotate so that the liquid suction head moves up and down.

[0004] However, this patent has the following defects during operation: when the stirring rod stirs the soil and nutrient solution, part of the soil tends to adhere to the inner wall of the cylinder as the liquid level changes. Due to the lack of a mechanism that can reintroduce the soil into the solution, the soil and nutrient solution are not mixed sufficiently, which leads to insufficient screening when the liquid containing the bacterial strain is subsequently absorbed. Utility Model Content

[0005] The utility model is intended to provide a device for continuous screening of soil microbial strains, which is mainly used to solve the technical problem that the existing technology lacks a mechanism for reintroducing soil into the solution, resulting in insufficient mixing of soil and nutrient solution, thereby causing insufficient screening when the liquid containing the strains is subsequently absorbed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A soil microorganism strain continuous screening device comprises a screening drum, a stirring device, a first scraping mechanism, a cleaning mechanism, an elastic moving mechanism, a second scraping mechanism and an automatic liquid suction device, wherein the stirring device is arranged at the top of the screening drum, and one end of the stirring device extends into the interior of the screening drum, the first scraping mechanism is arranged at the bottom of the stirring device, and one end of the first scraping mechanism is in contact with the inner wall of the screening drum, the cleaning mechanism is arranged on one side of the first scraping mechanism, and one end of the cleaning mechanism extends close to the inner wall of the screening drum, the elastic moving mechanism is arranged at the top of the inner wall of the screening drum, the second scraping mechanism is movably arranged on the outer wall of the elastic moving mechanism, and one side of the second scraping mechanism is contactable with one side of the first scraping mechanism, and one side of the cleaning mechanism is contactable with one side of the second scraping mechanism, and the automatic liquid suction device is arranged at the top of the screening drum near the outside of the stirring device, and one end of the automatic liquid suction device extends into the interior of the screening drum.

[0008] The working principle and beneficial effects of this utility model:

[0009] 1. Working principle: The stirring device is used to facilitate mixing of the nutrient solution and soil inside the screening drum. The stirring device can drive the first scraping mechanism to rotate along the inner wall of the screening drum to scrape off the soil attached to the inner wall of the screening drum, so that the soil accumulates on one side of the first scraping mechanism. When one side of the first scraping mechanism contacts the second scraping mechanism, the second scraping mechanism is squeezed and moves toward the center of the screening drum on the elastic moving mechanism, and the soil on the first scraping mechanism is scraped into the side of the second scraping mechanism. When the first scraping mechanism is separated from the second scraping mechanism, the elastic moving mechanism facilitates the second scraping mechanism to be reset, and again cooperates with the rotation of the stirring device to drive the cleaning mechanism to contact one side of the second scraping mechanism, so that the second scraping mechanism moves again. At this time, the cleaning mechanism cleans the soil on one side of the second scraping mechanism, and the soil falls back into the inside of the screening drum, so that the soil and nutrient solution are fully mixed.

[0010] 2.Beneficial effects:

[0011] (1) The connecting rod drives the stirring rod to rotate, and at the same time, the connecting rod drives the scraper to rotate along the inner wall of the screening drum, thereby scraping off the soil attached to the inner wall of the screening drum, so that the soil accumulates in the first guide groove. When the scraper contacts the baffle, the first guide groove and the second guide groove are in offset contact, thereby driving the baffle to move toward the center of the screening drum, so that the baffle slides on the fixed rod and drives the support spring to compress, and the soil in the first guide groove is scraped into the second guide groove. When the scraper is separated from the baffle, the baffle is reset due to the action of the support spring, and then the outer wall of the brush roller contacts the second guide groove, so that the baffle moves toward the center of the screening drum again. At this time, the brush roller cleans the soil inside the second guide groove, and the soil falls back into the inside of the screening drum, so that the soil and nutrient solution are fully mixed.

[0012] (2) After stirring, let it stand to allow the nutrient solution and soil to separate into layers. Use a liquid suction head to absorb the liquid on the surface of the nutrient solution, which contains bacteria, to separate the nutrient solution and soil residue. Use an electric push rod to ensure that the liquid suction head is always on the liquid surface, which is convenient for subsequent absorption.

[0013] Preferably, the stirring device includes a motor, a connecting rod and a stirring rod. The motor is installed at the top of the screening cylinder. The output end of the motor is fixedly connected to the connecting rod. One end of the connecting rod can be rotatably passed through the top of the inner part of the screening cylinder, and one end of the connecting rod extends into the inner part of the screening cylinder. Two groups of stirring rods are fixedly connected to the outer wall of the connecting rod. The two groups of stirring rods are arranged in a circular array, and each group of stirring rods is provided with a number of stirring rods, and the several stirring rods are arranged equidistantly along the radial direction of the connecting rod; starting the motor drives the connecting rod to rotate clockwise, so that the connecting rod drives the two groups of stirring rods to rotate, thereby mixing the nutrient solution and soil inside the screening cylinder.

[0014] Preferably, the first scraping mechanism includes a support plate, a scraper and a first guide groove, the top end of the support plate is fixedly connected to the bottom end of the stirring device, the top end of the support plate is located on the inner wall of the screening drum and is fixedly connected to two scrapers, the two scrapers are arranged in a ring array, and a first guide groove is provided on one side of the scraper; the top end of the support plate is fixedly connected to the bottom end of the connecting rod, and the connecting rod drives the support plate to rotate, so that the support plate drives the scraper to rotate along the inner wall of the screening drum, thereby scraping off the soil attached to the inner wall of the screening drum, and due to the action of the first guide groove, the soil accumulates in the first guide groove.

[0015] Preferably, the cleaning mechanism includes an extension plate and a brush roller, one end of the extension plate is fixedly connected to one side of the support plate, and the top of the extension plate is fixedly connected to a brush roller near the inner wall of the screening cylinder; the extension plate drives the outer wall of the brush roller to contact the second scraping mechanism, so that the second scraping mechanism moves toward the center of the screening cylinder under the action of the elastic moving mechanism. At this time, the brush roller cleans the soil on one side of the second scraping mechanism, so that the soil falls back into the inside of the screening cylinder, thereby fully mixing the soil and nutrient solution.

[0016] Preferably, the elastic moving mechanism includes a fixed rod, a limiting plate, a supporting spring, a baffle and a second guide groove, one end of the fixed rod is fixedly connected to the top of the inner wall of the screening drum, the other end of the fixed rod is fixedly connected to the limiting plate, and the outer wall of the fixed rod is sleeved with a supporting spring; when the scraper is separated from the second scraping mechanism, the baffle is driven to reset due to the action of the supporting spring, and since the supporting plate continues to rotate, the extension plate drives the outer wall of the brush roller to contact the second guide groove.

[0017] Preferably, the second scraping mechanism includes a baffle and a second guide groove, the baffle is slidably sleeved on the outer wall of the fixed rod, and a second guide groove is opened on one side of the baffle, one end of the support spring is fixedly connected to the outer side of the limiting plate, and the other end is fixedly connected to the inner side of the baffle; when the scraper drives the first guide groove to rotate to contact the second guide groove on one side of the baffle, the baffle is squeezed, causing the baffle to move toward the center of the screening drum, and the baffle slides on the fixed rod while driving the support spring to be compressed under the restriction of the limiting plate, so that the soil in the first guide groove is scraped into the second guide groove.

[0018] Preferably, the automatic liquid suction device includes a mounting frame, an electric push rod, a connecting plate, a liquid suction tube and a liquid suction head, the bottom end of the mounting frame is fixedly connected to the top of the screening cylinder, the top of the mounting frame is equipped with an electric push rod, the output end of the electric push rod passes through the top of the mounting frame, and the output end of the electric push rod is fixedly connected to the connecting plate, the top and bottom ends of the connecting plate are fixedly embedded with the same liquid suction tube, one end of the liquid suction tube slides through the top and inner top of the screening cylinder, and one end of the liquid suction tube is fixedly connected with the liquid suction head close to the inside of the screening cylinder; after the stirring is completed, it is allowed to stand so that the nutrient solution and the soil are separated, and the liquid suction head is used to facilitate the suction of liquid on the liquid surface of the nutrient solution, which contains bacteria, so that the liquid is introduced from the liquid suction head into the liquid suction tube, and is led out of the screening cylinder by the liquid suction tube, so as to separate the nutrient solution and soil residue, and then the electric push rod is started so that the electric push rod drives the liquid suction tube to move downward inside the screening cylinder, so as to facilitate the liquid suction head to always be located on the liquid surface, which is convenient for subsequent liquid suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of a soil microbial strain continuous screening device of the present utility model;

[0020] Figure 2 This is a partial cross-sectional view of a screening cylinder of a soil microbial strain continuous screening device of the present invention;

[0021] Figure 3 This is a scraper structure diagram of a soil microbial strain continuous screening device of the utility model;

[0022] Figure 4 This is a baffle structure diagram of a soil microbial strain continuous screening device of the utility model;

[0023] Figure 5 This is a diagram of the automatic liquid aspiration structure of a soil microbial strain continuous screening device of the utility model.

[0024] The figure marks in the drawings of the specification include: 1. screening drum; 2. motor; 3. connecting rod; 4. stirring rod; 5. support plate; 6. scraper; 7. first guide groove; 8. extension plate; 9. brush roller; 10. fixing rod; 11. limiting plate; 12. supporting spring; 13. baffle; 14. second guide groove; 15. mounting frame; 16. electric push rod; 17. connecting plate; 18. suction tube; 19. suction head. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5As shown, a soil microbial strain continuous screening device includes a screening drum 1, a stirring device, a first scraping mechanism, a cleaning mechanism, an elastic moving mechanism, a second scraping mechanism and an automatic liquid suction device. The stirring device is arranged at the top of the screening drum 1, and one end of the stirring device extends into the interior of the screening drum 1. The stirring device includes a motor 2, a connecting rod 3 and a stirring rod 4. The motor 2 is installed at the top of the screening drum 1, and the output end of the motor 2 is fixedly connected to the connecting rod 3. One end of the connecting rod 3 can rotatably pass through the top of the interior of the screening drum 1, and one end of the connecting rod 3 extends into the interior of the screening drum 1. Two groups of stirring rods 4 are fixedly connected to the outer wall of the connecting rod 3. The two groups of stirring rods 4 are arranged in a ring array, and each group of stirring rods 4 is provided with a plurality of stirring rods 4, and the plurality of stirring rods 4 are arranged equidistantly along the radial direction of the connecting rod 3. The first scraping mechanism is arranged in a row, the first scraping mechanism is arranged at the bottom end of the stirring device, and one end of the first scraping mechanism is in contact with the inner wall of the screening drum 1, the first scraping mechanism includes a support plate 5, a scraper 6 and a first guide groove 7, the top of the support plate 5 is fixedly connected to the bottom end of the stirring device, the top of the support plate 5 is located at the inner wall of the screening drum 1 and is fixedly connected to two scrapers 6, the two scrapers 6 are arranged in a circular array, and a first guide groove 7 is provided on one side of the scraper 6, the cleaning mechanism is arranged on one side of the first scraping mechanism, and one end of the cleaning mechanism extends close to the inner wall of the screening drum 1, the cleaning mechanism includes an extension plate 8 and a brush roller 9, one end of the extension plate 8 is fixedly connected to one side of the support plate 5, and the top of the extension plate 8 is fixedly connected to the inner wall of the screening drum 1 with a brush roller 9, the elastic moving mechanism is arranged on the top of the inner wall of the screening drum 1, and the elastic The moving mechanism includes a fixed rod 10, a limiting plate 11, a supporting spring 12, a baffle 13 and a second guide groove 14. One end of the fixed rod 10 is fixedly connected to the top of the inner wall of the screening drum 1, and the other end of the fixed rod 10 is fixedly connected to the limiting plate 11. The outer wall of the fixed rod 10 is provided with a supporting spring 12. The second scraping mechanism is movably arranged on the outer wall of the elastic moving mechanism, and one side of the second scraping mechanism is contactable with one side of the first scraping mechanism. The second scraping mechanism includes a baffle 13 and a second guide groove 14. The baffle 13 is slidably sleeved on the outer wall of the fixed rod 10. A second guide groove 14 is provided on one side of the baffle 13. One end of the support spring 12 is fixedly connected to the outside of the limiting plate 11, and the other end is fixedly connected to the inside of the baffle 13. One side of the cleaning mechanism is in contact with one side of the second scraping mechanism. For the contactable setting, start the motor 2, so that the motor 2 drives the connecting rod 3 to rotate clockwise, and the connecting rod 3 drives the support plate 5 to rotate, so that the support plate 5 drives the scraper 6 to rotate along the inner wall of the screening drum 1, thereby scraping the soil attached to the inner wall of the screening drum 1, and due to the action of the first guide groove 7, the soil is accumulated in the first guide groove 7. When the scraper 6 drives the first guide groove 7 to rotate to contact the second guide groove 14 on the side of the baffle 13, the baffle 13 is squeezed at this time, so that the baffle 13 moves toward the center of the screening drum 1, and the baffle 13 slides on the fixed rod 10 while driving the support spring 12 to be compressed under the restriction of the restriction plate 11, so that the soil in the first guide groove 7 is scraped into the second guide groove 14. When the scraper 6 separates from the baffle 13,Due to the action of the support spring 12, the baffle 13 is driven to return to its original position. As the support plate 5 continues to rotate, the extension plate 8 drives the outer wall of the brush roller 9 to contact the second guide groove 14, causing the baffle 13 to move toward the center of the screening drum 1 again. At this time, the brush roller 9 cleans the soil inside the second guide groove 14, causing the soil to fall back into the screening drum 1, thereby fully mixing the soil and the nutrient solution.

[0027] The automatic liquid suction device is arranged at the top of the screening cylinder 1 near the outside of the stirring device, and one end of the automatic liquid suction device extends into the interior of the screening cylinder 1. The automatic liquid suction device includes a mounting frame 15, an electric push rod 16, a connecting plate 17, a liquid suction pipe 18 and a liquid suction head 19. The bottom end of the mounting frame 15 is fixedly connected to the top of the screening cylinder 1, and the top of the mounting frame 15 is equipped with an electric push rod 16. The output end of the electric push rod 16 passes through the top of the mounting frame 15, and the output end of the electric push rod 16 is fixedly connected to the connecting plate 17. The top and bottom ends of the connecting plate 17 are fixedly embedded with the same liquid suction pipe 18. The head end of the liquid suction pipe 18 is connected to the output end of the external liquid suction pump. The liquid suction pipe 18 One end slides through the top and inner top of the screening cylinder 1, and one end of the pipette 18 is fixedly connected to a pipette head 19 near the inside of the screening cylinder 1. After the stirring is completed, it is allowed to stand to allow the nutrient solution and the soil to be separated. The pipette head 19 is used to facilitate the absorption of liquid on the surface of the nutrient solution. The liquid contains bacterial species, so that the liquid is introduced from the pipette head 19 into the pipette 18 and then guided out of the screening cylinder 1 by the pipette 18 to separate the nutrient solution and soil residue. The electric push rod 16 is then started to drive the pipette 18 to move downward inside the screening cylinder 1, so that the pipette head 19 is always located on the liquid surface, which is convenient for the subsequent absorption of liquid.

[0028] From the above, it can be seen that the specific implementation of the present invention is as follows: start the motor 2, so that the motor 2 drives the connecting rod 3 to rotate clockwise, so that the connecting rod 3 drives the two sets of stirring rods 4 to rotate, thereby mixing the nutrient solution and soil inside the screening drum 1, and then the connecting rod 3 drives the support plate 5 to rotate, so that the support plate 5 drives the scraper 6 to rotate along the inner wall of the screening drum 1, thereby scraping the soil attached to the inner wall of the screening drum 1, and due to the action of the first guide groove 7, the soil is accumulated in the first guide groove 7, when the scraper 6 drives the first guide groove 7 to rotate to contact the second guide groove 14 on the side of the baffle 13, the baffle 13 is squeezed at this time, causing the baffle 13 to move toward the center of the screening drum 1, and the baffle 13 slides on the fixed rod 10 while driving the support spring 12 to be compressed under the restriction of the restriction plate 11, so that the soil in the first guide groove 7 is scraped into the second guide groove 14, and the soil is removed from the second guide groove 14. When the baffle 13 is separated, the support spring 12 drives the baffle 13 to reset. Since the support plate 5 continues to rotate, the extension plate 8 drives the outer wall of the brush roller 9 to contact the second guide groove 14, so that the baffle 13 moves toward the center of the screening drum 1 again. At this time, the brush roller 9 cleans the soil inside the second guide groove 14, so that the soil falls back into the screening drum 1, so that the soil and nutrient solution are fully mixed. After the mixing is completed, it is allowed to stand so that the nutrient solution and soil are separated. The liquid on the surface of the nutrient solution is absorbed by the liquid suction head 19, which contains bacterial strains. The liquid is introduced from the liquid suction head 19 into the liquid suction pipe 18 and is discharged from the liquid suction pipe 18 to the screening drum 1, so as to separate the nutrient solution and soil residue. Then the electric push rod 16 is started, so that the electric push rod 16 drives the liquid suction pipe 18 to move downward inside the screening drum 1, so that the liquid suction head 19 is always located on the liquid surface, which is convenient for subsequent liquid absorption.

[0029] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A soil microbial strain continuous screening device, characterized in that: The invention comprises a screening cylinder (1), a stirring device, a first scraping mechanism, a cleaning mechanism, an elastic moving mechanism, a second scraping mechanism and an automatic liquid suction device, wherein the stirring device is arranged at the top of the screening cylinder (1), and one end of the stirring device extends into the interior of the screening cylinder (1); the first scraping mechanism is arranged at the bottom of the stirring device, and one end of the first scraping mechanism is in contact with the inner wall of the screening cylinder (1); the cleaning mechanism is arranged on one side of the first scraping mechanism, and one end of the cleaning mechanism extends close to the inner wall of the screening cylinder (1); the elastic moving mechanism is arranged at the top of the inner wall of the screening cylinder (1); the second scraping mechanism is movably arranged on the outer wall of the elastic moving mechanism, and one side of the second scraping mechanism is contactable with one side of the first scraping mechanism; one side of the cleaning mechanism is contactable with one side of the second scraping mechanism; the automatic liquid suction device is arranged at the top of the screening cylinder (1) near the outer side of the stirring device, and one end of the automatic liquid suction device extends into the interior of the screening cylinder (1).

2. The soil microbial strain continuous screening device according to claim 1, characterized in that: The stirring device comprises a motor (2), a connecting rod (3) and a stirring rod (4), wherein the motor (2) is mounted on the top of the screening drum (1), and the output end of the motor (2) is fixedly connected to the connecting rod (3), one end of the connecting rod (3) is rotatable and passes through the top of the inner part of the screening drum (1), and one end of the connecting rod (3) extends into the inner part of the screening drum (1), and two groups of stirring rods (4) are fixedly connected to the outer wall of the connecting rod (3), and the two groups of stirring rods (4) are arranged in a ring array, and each group of stirring rods (4) is provided with a plurality of stirring rods, and the plurality of stirring rods (4) are arranged equidistantly along the radial direction of the connecting rod (3).

3. The soil microbial strain continuous screening device according to claim 1, characterized in that: The first scraping mechanism comprises a support plate (5), a scraper (6) and a first guide groove (7); the top end of the support plate (5) is fixedly connected to the bottom end of the stirring device; the top end of the support plate (5) is located on the inner wall of the screening drum (1) and is fixedly connected to two scrapers (6); the two scrapers (6) are arranged in a ring array, and a first guide groove (7) is provided on one side of the scraper (6).

4. The soil microbial strain continuous screening device according to claim 3, characterized in that: The cleaning mechanism comprises an extension plate (8) and a brush roller (9), one end of the extension plate (8) is fixedly connected to one side of the support plate (5), and the top end of the extension plate (8) is fixedly connected to the brush roller (9) near the inner wall of the screening cylinder (1).

5. The soil microbial strain continuous screening device according to claim 1, characterized in that: The elastic moving mechanism comprises a fixed rod (10), a limiting plate (11), a supporting spring (12), a baffle (13) and a second guide groove (14); one end of the fixed rod (10) is fixedly connected to the top of the inner wall of the screening drum (1); the other end of the fixed rod (10) is fixedly connected to the limiting plate (11); and the outer wall of the fixed rod (10) is sleeved with a supporting spring (12).

6. The soil microbial strain continuous screening device according to claim 5, characterized in that: The second scraping mechanism comprises a baffle (13) and a second guide groove (14), wherein the baffle (13) is slidably sleeved on the outer wall of the fixed rod (10), and the second guide groove (14) is provided on one side of the baffle (13), and one end of the support spring (12) is fixedly connected to the outer side of the limiting plate (11), and the other end is fixedly connected to the inner side of the baffle (13).

7. The soil microbial strain continuous screening device according to claim 1, characterized in that: The automatic liquid suction device comprises a mounting frame (15), an electric push rod (16), a connecting plate (17), a liquid suction pipe (18) and a liquid suction head (19), wherein the bottom end of the mounting frame (15) is fixedly connected to the top end of the screening cylinder (1), the top end of the mounting frame (15) is installed with an electric push rod (16), the output end of the electric push rod (16) passes through the top end of the mounting frame (15), and the output end of the electric push rod (16) is fixedly connected to the connecting plate (17), the top and bottom ends of the connecting plate (17) are fixedly embedded with the same liquid suction pipe (18), one end of the liquid suction pipe (18) slides through the top end and the inner top end of the screening cylinder (1), and one end of the liquid suction pipe (18) is fixedly connected to the liquid suction head (19) near the inside of the screening cylinder (1).

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