Efficient screening device for microbial soil potassium bacteria

Abstract

The utility model relates to a microorganism soil potassium bacteria efficient screening device which comprises a base and a machine box arranged on the base, a screen drum is fixedly arranged in the machine box, a feeding hopper is arranged at the top of the machine box and communicated with an inner cavity of the screen drum, two rotating rollers are arranged in the feeding hopper in a rotating mode and arranged in parallel, and the two rotating rollers are arranged on the base. A plurality of crushing rod sets are distributed on the outer wall of the rotating roller in the length direction, each crushing rod set comprises a plurality of crushing rods distributed in the circumferential direction of the outer wall of the rotating roller, a driving mechanism for driving the rotating roller to rotate is arranged on the feeding hopper, and a discharging port is formed in the left end of the screen drum, penetrates through the left side wall of the machine box and extends out of the machine box. A rotating shaft is rotationally arranged in the screen drum, and a plurality of material stirring plates are distributed on the rotating shaft in the circumferential direction and extend in the length direction of the rotating shaft. During screening, large soil blocks can be crushed, the screening efficiency and the screening effect are improved, impurities can be recycled conveniently after screening, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of microbial soil screening technology, specifically to a high-efficiency screening device for microbial soil potassium-solubilizing bacteria. Background Technology

[0002] Soil microorganisms are a collective term for bacteria, fungi, actinomycetes, and algae living in the soil. Among them are common potassium-solubilizing bacteria, also known as potassium bacteria, which are bacteria isolated from the soil that can differentiate aluminosilicate and apatite minerals and can be used as microbial fertilizers. They can decompose insoluble inorganic minerals such as potassium feldspar and apatite; promote the conversion of insoluble nutrients such as potassium, phosphorus, and magnesium into soluble nutrients, increase the content of available nutrients in the soil; and promote crop growth and development, thereby increasing yield.

[0003] Currently, the cultivation of potassium-solubilizing bacteria involves isolating and screening useful strains from soil. However, existing screening equipment suffers from low efficiency and poor screening results due to the presence of large soil clumps in the soil. Furthermore, it is inconvenient to collect the screened impurities after screening, making the equipment unsuitable for use. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a high-efficiency screening device for microbial soil potassium-solubilizing bacteria. During screening, it can break up large pieces of soil, improving screening efficiency and effect. Furthermore, it facilitates the recovery of impurities after screening, making it more convenient to use.

[0005] This utility model is achieved through the following technical solution: a high-efficiency screening device for microbial soil potassium-solubilizing bacteria, comprising a base and a casing mounted on the base. A screen cylinder is fixed inside the casing, and a discharge port is located at the bottom of the casing below the screen cylinder. A feed hopper is located at the top of the casing, and the feed hopper is connected to the inner cavity of the screen cylinder. Two rotating rollers are rotatably mounted inside the feed hopper, and the two rotating rollers are arranged in parallel. Multiple crushing rod groups are arranged along the length direction on the outer wall of the rotating rollers. Each crushing rod group includes multiple crushing rods distributed circumferentially along the outer wall of the rotating roller. A drive mechanism for driving the rotating rollers to rotate is provided on the feed hopper. A discharge port is located at the left end of the screen cylinder, and the discharge port extends through the left side wall of the casing to the outside of the casing. A rotating shaft is rotatably mounted inside the screen cylinder. A first drive motor is fixed on the right side wall of the casing, and the right end of the rotating shaft is connected to the output end of the first drive motor. Multiple material-pulling plates are distributed circumferentially on the rotating shaft, and the material-pulling plates extend along the length direction of the rotating shaft.

[0006] In this system, soil is fed into the screen cylinder through a feed hopper. During feeding, two rotating rollers cause the crushing rods to break up large pieces of soil, preventing them from accumulating on the screen cylinder and making them difficult to screen. A first drive motor drives a rotating shaft, which in turn rotates a feeding plate. Under the action of the feeding plate, the soil tumbles upwards. When it reaches a high point, it falls, dispersing the soil and achieving the effect of lifting it up. This further prevents soil accumulation. During the repeated tumbling process, impurities are screened out through the screen cylinder, achieving efficient separation of impurities and soil.

[0007] As an optimization, the crushing rods on the two rotating rollers are staggered. This optimization reduces voids and improves the crushing effect.

[0008] As an optimization, the drive mechanism includes a second drive motor, a driving gear, and a driven gear. The second drive motor is fixed to the outer wall of the feed hopper. The driving gear and the driven gear are respectively fixed to the same end of the two rotating rollers and mesh with each other. The other end of one of the rotating rollers is connected to the second drive motor for transmission. This optimized solution drives one of the rotating rollers to rotate using the second drive motor, and the driving gear and driven gear work together to drive the other rotating roller to rotate synchronously in the opposite direction, thus saving energy.

[0009] As an optimization, the material feeding plate has multiple material passage holes arranged in a matrix. This optimization scheme allows qualified soil to preferentially fall through the material passage holes onto the screen cylinder for screening, thereby improving screening efficiency and screening effect.

[0010] As an optimization, the material passage hole is an elongated hole. This optimization allows more soil to preferentially pass through the material passage hole.

[0011] As an optimization, an electric heating element is fixed inside the casing. This optimization scheme uses the electric heating element to keep the soil dry, making the soil easier to screen and thus further improving the screening effect.

[0012] As an optimization, a collection box is provided on the base, located below the discharge port. This optimization facilitates the collection of the screened soil.

[0013] As an optimization, the end of the casing near the discharge port is hinged to the base, and the other end of the casing is hinged to a telescopic cylinder. The end of the telescopic cylinder away from the casing is hinged to the base. This optimized solution drives the casing to rotate via the telescopic cylinder, thereby causing the discharge port to rotate downwards, facilitating the discharge of impurities.

[0014] As an optimization, two first support legs are fixedly connected to the base, located on the front and rear sides of the chassis. Hinges are fixedly connected to the left ends of the front and rear side walls of the chassis, and each hinge is hinged to one of the two first support legs. In this optimized design, the chassis achieves a rotatable connection with the base via hinges.

[0015] As an optimization, the right ends of the front and rear side walls of the chassis are fixed with limit shafts, and the base is fixed with two second support legs. The two second support legs are provided with arc-shaped sliding holes. The arc-shaped sliding holes and the hinge shaft are concentrically arranged, and the horizontal height of the lower end of the arc-shaped sliding holes is the same as the horizontal height of the hinge shaft. The two limit shafts are slidably connected to the two arc-shaped sliding holes respectively.

[0016] Because the arc-shaped sliding hole and the hinge shaft are concentric, the limiting shaft of the chassis can slide along the arc-shaped sliding hole when the chassis rotates around the hinge shaft. Since the horizontal height of the lower end of the arc-shaped sliding hole is the same as the horizontal height of the hinge shaft, when the limiting shaft slides to the lower end of the arc-shaped sliding hole, the chassis is in a horizontal state. The stability of the chassis is improved by the further support of the second support leg.

[0017] The beneficial effects of this utility model are as follows: Soil is fed into the screen cylinder through the feed hopper. During feeding, two rotating rollers rotate to break up large pieces of soil, preventing them from accumulating on the screen cylinder and making them difficult to screen. The first drive motor drives the rotating shaft to rotate, which in turn drives the material-pulling plate to rotate. Under the action of the material-pulling plate, the soil rolls from bottom to top and falls when it reaches a high point, thus dispersing the soil and achieving the effect of lifting the soil, further preventing soil accumulation. During the repeated rolling process, the soil passes through the screen cylinder to screen out impurities, achieving efficient separation of impurities and soil. The material-pulling plate has multiple material passage holes arranged in a matrix. Fine and qualified soil can fall preferentially from the material passage holes onto the screen cylinder for screening, thereby improving screening efficiency and screening effect. The telescopic cylinder drives the machine box to rotate, which allows the discharge port to rotate downward, facilitating the sliding discharge of impurities and making it convenient to use. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is a front view of the present utility model;

[0020] Figure 3 This is the left view of the present invention;

[0021] Figure 4 This is a top view of the feed hopper;

[0022] Figure 5 This is a schematic diagram showing the chassis in rotation.

[0023] As shown in the figure:

[0024] 1. Base, 2. Chassis, 21. Discharge port, 3. Screen cylinder, 31. Outlet, 4. Feed hopper, 41. Rotating roller, 42. Crushing rod, 5. Rotating shaft, 6. First drive motor, 7. Feeding plate, 71. Material passage hole, 8. Electric heating tube, 9. Telescopic cylinder, 10. Support seat, 11. Collection box, 12. First support leg, 13. Hinge shaft, 14. Second support leg, 15. Arc sliding hole, 16. Limiting shaft, 17. Second drive motor, 18. Drive gear, 19. Driven gear. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0026] like Figures 1-5 As shown, a high-efficiency screening device for potassium-solubilizing microbial soil bacteria includes a base 1 and a housing 2 mounted on the base 1. A sieve cylinder 3 is fixed inside the housing 2, and a discharge port 21 is located at the bottom of the housing 2, below the sieve cylinder 3. A collection box 11 is mounted on the base 1, located below the discharge port 21, facilitating the collection of screened soil. In this embodiment, a placement groove is provided on the base 1, and the collection box 11 is placed within the placement groove for easy positioning.

[0027] A feed hopper 4 is fixedly installed on the top of the casing 2, and the feed hopper 4 is connected to the inner cavity of the screen cylinder 3. Soil is fed into the screen cylinder 3 through the feed hopper 4.

[0028] Two rotating rollers 41 are rotatably arranged inside the feed hopper 4, and the two rotating rollers 41 are arranged in parallel. Multiple crushing rod groups are arranged along the length of the outer wall of the rotating rollers 41. Each crushing rod group includes multiple crushing rods 42 distributed circumferentially along the outer wall of the rotating roller 41. The feed hopper 4 is equipped with a drive mechanism to drive the rotating rollers 41 to rotate. During feeding, the rotation of the two rotating rollers 41 causes the crushing rods 42 to initially crush large pieces of soil, preventing them from accumulating on the screen cylinder 3 and making them difficult to screen. In this embodiment, the crushing rod groups on the two rotating rollers are staggered, reducing material passage gaps and improving the crushing effect.

[0029] Specifically, the drive mechanism includes a second drive motor 17, a driving gear 18, and a driven gear 19. The second drive motor 17 is fixed to the outer wall of the feed hopper 4. The driving gear 18 and the driven gear 19 are respectively fixed to the same end of two rotating rollers 41 and mesh with each other. The other end of one of the rotating rollers 41 is connected to the second drive motor 17 for transmission. The second drive motor 17 drives one of the rotating rollers 41 to rotate, and the driving gear 18 and the driven gear 19 work together to drive the other rotating roller 41 to rotate synchronously in the opposite direction, saving energy.

[0030] The screen cylinder 3 has a discharge port 31 at its left end. The discharge port 31 extends through the left side wall of the machine box 2 to the outside of the machine box 2. A rotating shaft 5 is rotatably installed inside the screen cylinder 3. A first drive motor 6 is fixed on the right side wall of the machine box 2. The right end of the rotating shaft 5 is connected to the output end of the first drive motor 6. Multiple material-pulling plates 7 are distributed circumferentially on the rotating shaft 5. The material-pulling plates 7 extend along the length direction of the rotating shaft 5.

[0031] Specifically, in this embodiment, the screen cylinder 3 extends in the left-right direction, and its right end is fixedly connected to the right side wall of the housing 2, thereby fixing the screen cylinder. In this embodiment, the discharge port 31 of the screen cylinder 3 is bucket-shaped, facilitating material sliding and discharge. The discharge port of the screen cylinder 3 is fixedly connected to the left side wall of the housing 2, thereby improving the fixing effect. In this embodiment, a support seat 10 is fixedly connected to the right outer wall of the housing 2, and the first drive motor 6 is fixedly mounted on the support seat 10. The rotating shaft 5 extends in the left-right direction, and its right end passes through the right side wall of the housing 2 and is rotatably connected to the right side wall of the housing 2 via a bearing. The rotating shaft 5 passes through the right side wall of the housing 2 and is fixedly connected to the output end of the first drive motor 6. In this embodiment, four material-pushing plates 7 are evenly distributed circumferentially on the outer wall of the rotating shaft 5. The material-pushing plates 7 extend along the length of the rotating shaft 5, and the end of the material-pushing plate 7 away from the rotating shaft 5 is attached to the inner wall of the screen cylinder 3, thereby agitating and tumbling the soil.

[0032] The first drive motor 6 drives the rotating shaft 5 to rotate, thereby driving the material-pulling plate 7 to rotate. The soil is rolled around in the circumference under the action of the material-pulling plate 7. When it reaches a high place, it falls and disperses the soil. During the repeated rolling process, the soil can be further prevented from accumulating, thus achieving efficient separation of impurities and soil.

[0033] Preferably, the material feeding plate 7 has multiple material passing holes 71 arranged in a matrix. Finely refined soil can preferentially fall through the material passing holes 71 onto the screen cylinder 3 for sieving, thereby further improving the sieving effect. In this embodiment, the material passing holes 71 are elongated holes, allowing more soil to pass through them preferentially.

[0034] The casing 2 is equipped with an electric heating element 8. In this embodiment, two electric heating elements 8 are fixed to the top of the casing 2. The electric heating elements 8 dry the inside of the casing 2, keeping the soil dry and making it easier to screen, thereby further improving the screening effect.

[0035] In this embodiment, the casing 2 is rotatably mounted on the base 1. Specifically, one end of the casing 2 near the discharge port 31 is hinged to the base 1, and the other end of the casing 2 is hinged to a telescopic cylinder 9. The end of the telescopic cylinder 9 away from the casing 2 is hinged to the base 1. The telescopic cylinder 9 drives the casing 2 to rotate, thereby causing the discharge port 31 to rotate downwards, facilitating the discharge of impurities.

[0036] In this embodiment, two first support legs 12 are fixedly connected to the base 1. The two first support legs 12 are located on the front and rear sides of the chassis 2 and are arranged opposite to each other. The left ends of the front and rear side walls of the chassis 2 are both fixedly connected to hinge shafts 13. The two hinge shafts 13 are rotatably connected to the two first support legs 12 respectively. The chassis 2 is rotatably connected to the base 1 through the hinge shafts 13.

[0037] In this embodiment, limit shafts 16 are fixedly connected to the right ends of the front and rear side walls of the chassis 2. Two second support legs 14 are fixedly connected to the base 1, located on the front and rear sides of the chassis 2 and arranged opposite to each other. Arc-shaped sliding holes 15 are formed on the two second support legs 14. The arc-shaped sliding holes 15 and the hinge shaft 13 are concentrically arranged, and the two limit shafts 16 are slidably connected to the two arc-shaped sliding holes 15 respectively. In this embodiment, the limit shafts 16 are inserted into the arc-shaped sliding holes 15 to achieve a sliding connection. Because the arc-shaped sliding holes 15 and the hinge shaft 13 are concentric, when the chassis 2 rotates around the hinge shaft 13, the limit shafts 16 can slide along the arc of the arc-shaped sliding holes 15.

[0038] In this embodiment, the lower end of the arc-shaped sliding hole 15 is at the same horizontal height as the hinge shaft 13. When the limiting shaft 16 contacts the lower end of the arc-shaped sliding hole 15, the housing 2 is horizontal. In this embodiment, the arc of the arc-shaped sliding hole 15 is 30°~45°.

[0039] By limiting the curvature of the arc-shaped sliding hole 15, the upward sliding distance of the limiting shaft 16 is limited, thereby limiting the rotation angle of the chassis 2 and preventing excessive rotation. When the limiting shaft 16 rotates to the lower end of the arc-shaped sliding hole 15, the chassis 2 is just in a horizontal state. The stability of the chassis 2 is improved by the further support of the second support leg 14.

[0040] Working principle: Soil is fed into the feed hopper 4. The second drive motor 17 drives two rotating rollers 41 to rotate synchronously, causing the crushing rod 42 to rotate and initially crush large pieces of soil, facilitating screening. The first drive motor 6 drives the rotating shaft 5 to rotate, which in turn drives the material-pulling plate 7 to rotate. Under the action of the material-pulling plate 7, the soil tumbles around the screen cylinder 3. When it reaches a high point, it falls, causing the soil to disperse and be lifted. During the repeated tumbling process, the soil can be further prevented from accumulating. When the material-pulling plate 7 moves the soil, some fine and qualified soil can leak out from the material passage 71, thus falling onto the screen cylinder 3 for screening, thereby improving screening efficiency and screening effect. The soil screened out by the screen cylinder 3 falls into the collection box 11 through the discharge port 21 for collection and treatment. After screening, the telescopic cylinder 9 extends and drives the machine housing 2 to rotate upward around the hinge shaft 13, thereby tilting the discharge port 31 downward. The screened impurities slide out of the discharge port 31 and are discharged, making it convenient to use.

[0041] The above description is not limited to the examples given above. Technical features not described in this utility model can be implemented by or using existing technology, and will not be elaborated here. The above embodiments and drawings are only used to illustrate the technical solutions of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A microbial soil potassium-dissolving bacteria high-efficiency screening device, comprising a base (1) and a case (2) arranged on the base (1), characterized in that: The machine case (2) is internally fixed with a screen cylinder (3), the bottom of the machine case (2) is provided with a discharge port (21), the discharge port is located below the screen cylinder (3), the top of the machine case (2) is provided with a feeding hopper (4), the feeding hopper (4) is communicated with the inner cavity of the screen cylinder (3), two rotating rollers (41) are rotatably arranged in the feeding hopper (4), the two rotating rollers are arranged in parallel, a plurality of crushing rod groups are arranged on the outer wall of the rotating roller (41) in the length direction, each crushing rod group comprises a plurality of crushing rods (42) which are distributed in the circumferential direction of the outer wall of the rotating roller, a driving mechanism for driving the rotating roller (41) to rotate is arranged on the feeding hopper (4), the left end of the screen cylinder (3) is provided with a discharge port (31), the discharge port (31) extends through the left side wall of the machine case (2) to the outside of the machine case, a rotating shaft (5) is rotatably arranged in the screen cylinder (3), a first driving motor (6) is fixedly arranged on the right side wall of the machine case (2), the right end of the rotating shaft (5) is in transmission connection with the output end of the first driving motor, a plurality of poking plates (7) are distributed in the circumferential direction of the rotating shaft (5).

2. The microbial soil-potassium solubilizing bacteria high-efficiency screening device according to claim 1, characterized in that: The crushing rod groups on the two rotating rollers (41) are staggered.

3. The microbial soil-potassium solubilizing bacteria high-efficiency screening device according to claim 1 or 2, characterized in that: The driving mechanism comprises a second driving motor (17), a driving gear (18) and a driven gear (19), the second driving motor is fixedly arranged on the outer wall of the feeding hopper (4), the driving gear (18) and the driven gear (19) are fixedly connected to the same end of the two rotating rollers (41) and are in meshing connection with each other, and the other end of one of the rotating rollers (41) is in transmission connection with the second driving motor (17).

4. The microbial soil-potassium solubilizing bacteria high-efficiency screening device according to claim 1, characterized in that: A plurality of material passing holes (71) are arranged in a matrix on the poking plate (7).

5. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 4, characterized in that: The material passing hole (71) is a long hole.

6. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 1, characterized in that: An electric heating pipe (8) is fixedly arranged in the machine case (2).

7. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 1, characterized in that: A collecting box (11) is arranged on the base (1) and located below the discharge port (21).

8. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 1, characterized in that: One end of the machine case (2) close to the discharge port (31) is hingedly connected to the base (1), and the other end of the machine case (2) is hingedly connected with a telescopic cylinder (9), and the end of the telescopic cylinder (9) away from the machine case (2) is hingedly connected to the base (1).

9. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 8, characterized in that: Two first supporting legs (12) are fixedly connected to the base (1) and located on the front and rear sides of the machine case (2), a hinging shaft (13) is fixedly connected to the left end of the front and rear side walls of the machine case, and the two hinging shafts (13) are rotatably connected to the two first supporting legs (12) respectively.

10. The microbial soil solubilizing bacteria high-efficiency screening device according to claim 9, characterized in that: Limiting shafts (16) are fixedly connected to the right ends of the front and rear side walls of the machine case (2), two second supporting legs (14) are fixedly connected to the base (1), arc sliding holes (15) are formed in the two second supporting legs (14), the arc sliding holes and the hinging shafts (13) are concentrically arranged, the horizontal height of the lower end of the arc sliding hole (15) is the same as that of the hinging shaft (13), and the two limiting shafts (16) are slidably connected to the two arc sliding holes (15) respectively.

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