A stirring device for mixing microbial inoculants with fertilizers

Abstract

This utility model relates to the field of agricultural production mixing technology and discloses a mixing device for the mixed application of microbial agents and fertilizers. The device includes a support frame, a mixing box, a top cover, a telescopic structure, mixing components, and a feeding structure. During operation, the operator controls the opening of the top cover via the telescopic structure, adding the material to the mixing box. The mixing motor drives the mixing blades and auger plates on the rotating shaft to rotate, forming a three-dimensional mixing flow field. Combined with the semi-circular bottom of the mixing box, this ensures thorough mixing of the material. After mixing, the material is discharged through the outlet structure. In the device, a fixed sheet metal enhances the stability of the mixing box, a telescopic cylinder links the top cover to ensure sealing, a motor fixing plate reduces vibration, a bearing seat lubricates and prevents dust, an outlet connecting pipe guides the flow, and the feeding structure ensures operational safety. This device solves problems such as uneven mixing, easy deactivation of microbial agents, and unsafe operation, improving mixing uniformity and operational safety, and ensuring the effective application of microbial agents and fertilizers.

Description

Technical Field

[0001] This utility model relates to the field of agricultural production mixing technology, specifically a mixing device for mixing and applying microbial agents and fertilizers. Background Technology

[0002] Microbial inoculants are agricultural preparations containing specific live microorganisms. Through the metabolic activities of microorganisms (such as nitrogen fixation, phosphorus solubilization, and potassium solubilization), they can improve the soil micro-ecological environment and enhance the disease resistance of crops. Fertilizers, on the other hand, provide essential nutrients such as nitrogen, phosphorus, and potassium for crop growth. When microbial inoculants and fertilizers are mixed, they can form a synergistic effect. Fertilizers provide the energy substrates needed for microorganism metabolism, while microorganisms can promote the transformation and absorption of fertilizer nutrients, reduce soil fixation and loss, and inhibit soil-borne diseases, thus achieving the goals of "increasing yield, improving quality, and reducing consumption." This mixed application method is an important technical path for green and efficient cultivation in modern agriculture, and it is of great significance for overcoming continuous cropping obstacles, improving arable land quality, and reducing fertilizer use.

[0003] Traditional microbial agent and fertilizer mixing devices have significant drawbacks in practical applications. On the one hand, traditional devices often employ single-shaft mixing or simple paddle structures, resulting in uneven flow fields within the mixing chamber. This leads to low mixing efficiency of microbial agents (mostly powders or liquids) and granular fertilizers, often resulting in localized agglomeration or stratification. This directly affects the contact area between microorganisms and fertilizer particles, preventing the full release of agent activity and reducing fertilizer nutrient utilization. On the other hand, these devices lack temperature and humidity control components. Microbial agents are prone to inactivation due to enzyme deactivation in high-temperature or high-humidity environments. Furthermore, the heat generated by material friction during traditional mixing is difficult to dissipate, further exacerbating the decline in agent survival rate. In addition, some devices use open mixing structures, allowing microbial agents to easily escape with dust during mixing. This not only causes loss of effective components but may also cause respiratory discomfort for operators. Moreover, open systems make it difficult to accurately control material ratios, leading to fluctuations in mixing uniformity and severely affecting the stability of field application effects. This restricts the widespread application of this technology in large-scale agricultural production. Therefore, we propose a mixing device for the mixed application of microbial agents and fertilizers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a mixing device for mixing and applying microbial agents and fertilizers, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a mixing device for mixing and applying microbial agents and fertilizers, comprising:

[0006] A support frame and a standing frame are provided, wherein a mixing tank is provided on the top of the support frame, a standing frame is provided on the side of the support frame, and a top cover is provided on the top of the mixing tank;

[0007] A telescopic structure is provided on the top of the support frame, the telescopic structure is located next to the side of the mixing tank, and the top of the telescopic structure is connected to the top cover;

[0008] The stirring assembly is located on the top of the support frame. The stirring assembly includes a motor structure, a stirring structure, and an outlet structure. The motor structure is located on the outer side of the stirring tank, and the outlet structure is located at the bottom of the stirring tank.

[0009] The feeding structure is located on the side of the support frame.

[0010] Preferably, the top of the support frame is hollow, and a fixing sheet metal is fixedly installed at the four inner corners of the top of the support frame. A mixing tank is fixedly installed on the side of the fixing sheet metal, and the bottom of the mixing tank is semi-circular.

[0011] Preferably, the top of the mixing tank is hinged with a top cover, and the fixed side of the top cover is the outward side of the mixing tank.

[0012] Preferably, the telescopic structure includes connecting blocks and telescopic cylinders. A set of connecting blocks distributed symmetrically on both sides of the top of the top cover are fixedly installed. A telescopic cylinder is rotatably installed at the bottom of the connecting blocks, and the bottom of the telescopic cylinder is rotatably connected to the top of the support frame.

[0013] Preferably, the motor structure includes a stirring motor and a motor mounting plate. The motor mounting plate is fixedly installed on the side of the support frame, and the stirring motor is fixedly installed on the top of the motor mounting plate.

[0014] Preferably, the stirring structure includes a bearing housing, a rotating shaft, stirring blades, and stirring auger blades. A set of bearing housings distributed symmetrically on both sides of the top of the support frame are fixedly installed. A rotating shaft is rotatably installed between the bearing housings. The rotating shaft passes through the side wall of the stirring tank. One end face of the rotating shaft is fixedly connected to the output shaft of the bearing housing. Multiple sets of linearly distributed stirring blades are fixedly installed on the outer surface of the rotating shaft. Stirring auger blades are also fixedly installed on the outer surface of the rotating shaft.

[0015] Preferably, the outlet structure includes an outlet, an outlet connecting pipe, and a control valve. The outlet is located at the center of the bottom of the outlet connecting pipe. An outlet connecting pipe is fixedly installed on the outer side of the bottom of the outlet. A control valve is fixedly installed at the bottom of the outlet connecting pipe. A valve switch is movably installed on the side of the control valve.

[0016] Preferably, the feeding structure includes a standing frame, a guardrail, and a handle. The standing frame is fixedly installed on the side of the support frame, the guardrail is fixedly installed on the top of the standing frame, and the handle is fixedly installed on the side of the standing frame. The top of the handle is fixedly connected to the side of the guardrail, and the top of the handle is flush with the top of the guardrail.

[0017] Compared with the prior art, this utility model provides a mixing device for mixing and applying microbial agents and fertilizers, which has the following beneficial effects:

[0018] 1. This mixing device for mixing microbial agents and fertilizers features a mixing structure where linearly distributed mixing blades on the outer surface of the rotating shaft work in synergy with the auger blades to form a three-dimensional mixing flow field. The mixing blades shear the material laterally, while the auger blades achieve longitudinal circulation through spiral propulsion. The semi-circular design at the bottom of the mixing tank reduces dead corners, ensuring full contact between the microbial agent and fertilizer. This effectively improves the problem of localized agglomeration or stratification found in traditional devices. The enclosed mixing tank with a top cover reduces external environmental interference. A telescopic cylinder drives the top cover to open and close, preventing the escape of microbial agent dust. Simultaneously, the combination of the auger blades and blades optimizes the mixing path, reducing ineffective friction and heat generation, providing a more stable active environment for the microbial agent. A safe feeding structure is formed by a standing frame, guardrail, and handles on the side of the support frame. The guardrail height on the top of the standing frame meets standards, and the integrated design of the handle and guardrail provides stable support, ensuring safe feeding and adjustment for operators. The control valve in the outlet structure can precisely regulate the discharge speed, avoiding material waste caused by uncontrolled discharge in traditional devices, significantly reducing operational risks and improving production convenience and safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the telescopic cylinder of this utility model;

[0021] Figure 3 This is a schematic diagram of the control valve of this utility model;

[0022] Figure 4 This is a schematic diagram of the stirring blade of this utility model;

[0023] Figure 5 This is a schematic diagram of the rotating shaft of this utility model.

[0024] In the diagram: 1. Support frame; 2. Fixed sheet metal; 3. Mixing tank; 4. Top cover; 5. Connecting block; 6. Telescopic cylinder; 7. Mixing motor; 8. Bearing seat; 9. Rotating shaft; 10. Mixing blades; 11. Mixing auger blades; 12. Outlet; 13. Outlet connecting pipe; 14. Control valve; 15. Standing frame; 16. Guardrail; 17. Handle; 18. Motor mounting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 A mixing device for mixing and applying microbial inoculants with fertilizers, comprising:

[0027] The support frame 1 and the standing frame 15 are provided. The top of the support frame 1 is equipped with a mixing tank 3, the side of the support frame 1 is equipped with a standing frame 15, and the top of the mixing tank 3 is equipped with a top cover 4.

[0028] The telescopic structure is located on the top of the support frame 1 and is located on the side of the mixing tank 3. The top of the telescopic structure is connected to the top cover 4.

[0029] The stirring assembly is located on the top of the support frame 1. The stirring assembly includes a motor structure, a stirring structure and an outlet structure. The motor structure is located on the outer side of the mixing tank 3 and the outlet structure is located at the bottom of the mixing tank 3.

[0030] The feeding structure is located on the side of the support frame 1.

[0031] Furthermore, the top of the support frame 1 is hollow, and the four inner corners of the top of the support frame 1 are fixedly installed with sheet metal 2. The mixing tank 3 is fixedly installed on the side of the sheet metal 2. The bottom of the mixing tank 3 is semi-circular. The top of the support frame 1 adopts a hollow design, and the sheet metal 2 at the four inner corners is fixedly connected to the side of the mixing tank 3 with bolts. This structural design not only reduces the overall weight of the device, but also ensures the stability of the mixing tank 3 during high-speed mixing through the rigid support of the sheet metal 2. The triangular reinforcement structure of the sheet metal 2 can disperse the vibration stress generated during the mixing process, and prevent the connection between the mixing tank 3 and the support frame 1 from loosening due to long-term vibration, thus ensuring the reliability of the device operation.

[0032] Furthermore, the top of the mixing tank 3 is hinged with a top cover 4. The fixed side of the top cover 4 is the outward side of the mixing tank 3. The top cover 4 is fixed to the outer edge of the top of the mixing tank 3 through a hinge shaft. The outward-facing design of the fixed side allows the top cover 4 to flip outward when opened, avoiding occupying the operating space above the mixing tank 3. The inner edge of the top cover 4 is embedded with a silicone sealing ring, which forms a tight fit with the top opening of the mixing tank 3. After the telescopic cylinder 6 closes the top cover 4, it can effectively prevent the bacterial agent dust from escaping during the mixing process, while reducing the entry of external dust and moisture into the tank and maintaining the airtightness of the mixing environment.

[0033] Furthermore, the telescopic structure includes connecting blocks 5 and telescopic cylinders 6. A set of axially symmetrically distributed connecting blocks 5 are fixedly installed on both sides of the top of the top cover 4. The telescopic cylinders 6 are rotatably installed on the bottom of the connecting blocks 5. The bottom of the telescopic cylinders 6 is rotatably connected to the top of the support frame 1. The two ends of the telescopic cylinders 6 are respectively connected to the connecting blocks 5 and the top of the support frame 1 through rotating shafts, forming a movable hinge structure. When the operator starts the telescopic cylinders 6 through the external control panel, the telescopic movement of the cylinder piston is converted into the flipping torque of the top cover 4 through the connecting blocks 5, realizing the smooth opening or closing of the top cover 4. The buffer damping design inside the cylinder can avoid the top cover 4 from generating violent impacts when starting and stopping, and extend the service life of the hinge components.

[0034] Furthermore, the motor structure includes a stirring motor 7 and a motor mounting plate 18. The motor mounting plate 18 is fixedly installed on the side of the support frame 1, and the stirring motor 7 is fixedly installed on the top of the motor mounting plate 18. The motor mounting plate 18 adopts a composite structure of double-layer steel plate with rubber pads, and is fixed to the side of the support frame 1 by bolts. The vibration generated by the stirring motor 7 during operation will be elastically buffered by the rubber pads, reducing the transmission of vibration to the support frame 1 and the mixing tank 3, avoiding collision between the stirring blades 10 and the inner wall of the mixing tank 3 due to resonance, and reducing the operating noise of the device, thus improving the comfort of the operating environment.

[0035] Furthermore, the stirring structure includes bearing seats 8, rotating shaft 9, stirring blades 10, and stirring auger blades 11. A set of bearing seats 8 distributed axially symmetrically are fixedly installed on both sides of the top of the support frame 1. The rotating shaft 9 is rotatably installed between the bearing seats 8. The rotating shaft 9 passes through the side wall of the mixing tank 3. One end face of the rotating shaft 9 is fixedly connected to the output shaft of the bearing seat 8. Multiple sets of linearly distributed stirring blades 10 are fixedly installed on the outer surface of the rotating shaft 9. Stirring auger blades 11 are also fixedly installed on the outer surface of the rotating shaft 9. Deep groove ball bearings are installed inside the bearing seats 8. The bearings are equipped with skeleton oil seals on both sides to prevent dust in the mixing tank 3 from entering the bearing cavity. At the same time, grease is periodically injected through the oil injection hole to ensure the smooth rotation of the rotating shaft 9. The fixing bolts of the bearing seats 8 and the top of the support frame 1 are made of anti-loosening nuts to prevent the bearing seats 8 from shifting under long-term high-speed operation, to ensure the coaxiality of the rotating shaft 9, and to prevent the stirring blades 10 from being worn more severely due to eccentricity.

[0036] Furthermore, the outlet structure includes an outlet 12, an outlet connecting pipe 13, and a control valve 14. The outlet 12 is located at the center of the bottom of the outlet connecting pipe 13. The outlet connecting pipe 13 is fixedly installed on the outer side of the bottom of the outlet 12. The control valve 14 is fixedly installed at the bottom of the outlet connecting pipe 13. A valve switch is movably installed on the side of the control valve 14. The inner wall of the outlet connecting pipe 13 adopts a smooth arc transition. The pipe diameter gradually decreases from the outlet 12 to the control valve 14, forming a guide cone surface, which can guide the mixed materials to flow out smoothly and avoid accumulation at the corner of the pipe. A detachable flange is provided at the connection between the outlet connecting pipe 13 and the bottom of the mixing tank 3, which is convenient for regular disassembly and cleaning to prevent material residue and deterioration from affecting the subsequent mixing quality.

[0037] Furthermore, the feeding structure includes a standing frame 15, a guardrail 16, and a handle 17. The standing frame 15 is fixedly installed on the side of the support frame 1. The guardrail 16 is fixedly installed on the top of the standing frame 15. The handle 17 is fixedly installed on the side of the standing frame 15, and the top of the handle 17 is fixedly connected to the side of the guardrail 16, and the top of the handle 17 is flush with the top of the guardrail 16. The surface of the pedal of the standing frame 15 is pressed with anti-slip texture, and a cross-shaped reinforcing rib is welded under the pedal. The height of the guardrail 16 meets industrial safety standards. The welding joint between the column and the standing frame 15 adopts a full welding process to ensure the safety of the operator when leaning on it during the feeding process. The surface of the handle 17 is covered with an anti-slip rubber sleeve to improve grip comfort and stability.

[0038] Structural Description:

[0039] Support frame 1: The basic support structure of the device, hollow at the top, with the mixing tank 3 fixed to the four inner corners by fixed sheet metal 2, and a stable support device at the bottom;

[0040] Fixed sheet metal 2: Installed at the four inner corners of the top of the support frame 1 and fixed to the side of the mixing box 3 with bolts. The triangular reinforcement structure can disperse vibration stress.

[0041] Mixing tank 3: The top is hinged to the top cover 4, the bottom is semi-circular, and the inside contains materials. It works with the mixing blades 10 and the mixing auger 11 to achieve mixing.

[0042] Top cover 4: It is fixed to the outer edge of the top of the mixing tank 3 by a hinge shaft, and a silicone sealing ring is embedded on the inner side. It is opened and closed in conjunction with the telescopic cylinder 6.

[0043] Connecting block 5: symmetrically fixed on both sides of the top of the top cover 4, and rotatably connected to the telescopic cylinder 6 at the bottom to transmit the cylinder's overturning torque;

[0044] Telescopic cylinder 6: Its bottom is rotatably connected to the top of the support frame 1, and its top is linked to the top cover 4 via the connecting block 5, driving it to open and close smoothly;

[0045] Motor mounting plate 18: It adopts a double-layer steel plate with rubber pad structure, is fixed to the side of the support frame 1, and installs the stirring motor 7 and buffers vibration;

[0046] Stirring motor 7: Fixed to the top of motor mounting plate 18, after starting, it drives the rotating shaft 9 in bearing seat 8 to rotate, providing stirring power;

[0047] Bearing housing 8: Symmetrically fixed on both sides of the top of the support frame 1, with deep groove ball bearings inside, supporting the rotating shaft 9 and ensuring smooth rotation;

[0048] Rotating shaft 9: penetrates the side wall of the mixing tank 3, and is connected to the output shaft of bearing seat 8 at both ends. The outer surface is equipped with stirring blades 10 and stirring auger blades 11.

[0049] Stirring blades 10: linearly distributed on the outer surface of the rotating shaft 9, they rotate with the shaft to perform transverse shearing of the material and promote mixing;

[0050] Agitator blade 11: Installed on the outer surface of the rotating shaft 9, it realizes longitudinal circulation of materials through spiral propulsion, enhancing the mixing effect;

[0051] Outlet 12: Located at the bottom center of outlet connecting pipe 13, it communicates with the inside of mixing tank 3 and is used to discharge the mixed material;

[0052] Outlet connecting pipe 13: An outlet 12 is provided at the center of the bottom, with a smooth arc transition on the inner wall. The bottom is fixed to the control valve 14 to guide the material out.

[0053] Control valve 14: Installed at the bottom of the outlet connecting pipe 13, with a valve switch on the side, to precisely control the material discharge speed;

[0054] Standing frame 15: fixed to the side of support frame 1, with a guardrail 16 on the top, and the footboard is pressed with anti-slip texture to provide a standing platform for operators;

[0055] Guardrail 16: Fixed to the top of the standing frame 15, its height meets industrial safety standards, and the uprights are fully welded to the standing frame 15 to ensure operational safety;

[0056] Handle 17: Fixed to the side of the stand 15, connected to the top of the guardrail 16, and covered with a non-slip rubber sleeve for easy gripping by operators;

[0057] Working Principle: During operation, the operator stands on the stand 15, holds the handle 17, and drives the connecting block 5 by controlling the extension and retraction of the telescopic cylinder 6, thereby opening and closing the top cover 4 to add microbial agents and fertilizers from the top of the mixing tank 3. Subsequently, the mixing motor 7 is fixed to the side of the support frame 1 via the motor fixing plate 18. After starting, it drives the rotating shaft 9 inside the bearing seat 8 to rotate. The rotating shaft 9 passes through the side wall of the mixing tank 3, and the mixing blades 10 and the mixing auger blades 11 on its outer surface rotate at high speed. The mixing blades 10 perform transverse shearing of the material, while the mixing auger blades 11 achieve longitudinal circulation of the material through spiral propulsion. The two work together to form a three-dimensional mixing flow field. Combined with the semi-circular design at the bottom of the mixing tank 3, it effectively reduces dead corners for material accumulation, allowing the microbial agents and fertilizers to be fully mixed. After completion, the control valve 14 in the outlet structure is opened, and the material is discharged through the outlet 12 and the outlet connecting pipe 13. During the entire working process, the telescopic cylinder 6 in the telescopic structure is linked with the connecting block 5 to ensure that the top cover 4 can be opened and closed smoothly, which not only facilitates feeding but also forms a closed environment during the mixing process to prevent the release of bacterial dust. The mixing motor 7 is stably fixed by the motor fixing plate 18, providing sufficient power to the mixing structure and ensuring the normal operation of the rotating shaft 9, mixing blades 10 and mixing auger 11 to achieve efficient mixing. The feeding structure composed of the standing frame 15, guardrail 16 and handle 17 provides a safe operating platform for the operator and ensures the safety of the operation process. The outlet 12, outlet connecting pipe 13 and control valve 14 in the outlet structure cooperate with each other to achieve precise control of the discharge.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for mixing and applying microbial inoculants with fertilizers, characterized in that, include: A support frame (1) and a standing frame (15) are provided. A mixing tank (3) is provided on the top of the support frame (1), and a standing frame (15) is provided on the side of the support frame (1). A top cover (4) is provided on the top of the mixing tank (3). The telescopic structure is set on the top of the support frame (1), the telescopic structure is set on the side of the mixing tank (3), and the top of the telescopic structure is connected to the top cover (4); The stirring assembly is located on the top of the support frame (1). The stirring assembly includes a motor structure, a stirring structure and an outlet structure. The motor structure is located on the outer side of the stirring tank (3). The bottom of the stirring tank (3) is provided with an outlet structure. The feeding structure is located on the side of the support frame (1).

2. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 1, characterized in that, The top of the support frame (1) is hollow, and a fixed sheet metal (2) is fixedly installed at the four corners of the inner side of the top of the support frame (1). A mixing tank (3) is fixedly installed on the side of the fixed sheet metal (2), and the bottom of the mixing tank (3) is semi-circular.

3. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 1, characterized in that, The top of the mixing tank (3) is hinged to a top cover (4), and the fixed side of the top cover (4) is the outward side of the mixing tank (3).

4. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 3, characterized in that, The telescopic structure includes a connecting block (5) and a telescopic cylinder (6). A set of connecting blocks (5) distributed symmetrically on both sides of the top of the top cover (4) are fixedly installed. The telescopic cylinder (6) is rotatably installed at the bottom of the connecting block (5). The bottom of the telescopic cylinder (6) is rotatably connected to the top of the support frame (1).

5. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 1, characterized in that, The motor structure includes a stirring motor (7) and a motor fixing plate (18). The motor fixing plate (18) is fixedly installed on the side of the support frame (1), and the stirring motor (7) is fixedly installed on the top of the motor fixing plate (18).

6. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 5, characterized in that, The stirring structure includes bearing seats (8), rotating shaft (9), stirring blades (10), and stirring auger blades (11). A set of bearing seats (8) distributed axially symmetrically are fixedly installed on both sides of the top of the support frame (1). The rotating shaft (9) is rotatably installed between the bearing seats (8). The rotating shaft (9) passes through the side wall of the stirring tank (3). One end face of the rotating shaft (9) is fixedly connected to the output shaft of the bearing seat (8). Multiple sets of stirring blades (10) distributed linearly are fixedly installed on the outer surface of the rotating shaft (9). Stirring auger blades (11) are also fixedly installed on the outer surface of the rotating shaft (9).

7. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 2, characterized in that, The outlet structure includes an outlet (12), an outlet connecting pipe (13), and a control valve (14). The outlet (12) is located at the center of the bottom of the outlet connecting pipe (13). The outlet connecting pipe (13) is fixedly installed on the outer side of the bottom of the outlet (12). The control valve (14) is fixedly installed at the bottom of the outlet connecting pipe (13). A valve switch is movably installed on the side of the control valve (14).

8. The mixing device for mixing and applying microbial inoculants and fertilizers according to claim 1, characterized in that, The feeding structure includes a standing frame (15), a guardrail (16), and a handle (17). The standing frame (15) is fixedly installed on the side of the support frame (1). The guardrail (16) is fixedly installed on the top of the standing frame (15). The handle (17) is fixedly installed on the side of the standing frame (15), and the top of the handle (17) is fixedly connected to the side of the guardrail (16), and the top of the handle (17) is flush with the top of the guardrail (16).

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