Trace element fertilizer and microbial agent mixing device

Abstract

The utility model relates to a trace element fertilizer and microbial agent mixing equipment, including first mixing box and second mixing box. First mixing box is equipped with by first drive unit, first stirring shaft and first stirring vane constitute primary mixing mechanism, is used for realizing preliminary mixing of material. Second mixing box integrates crushing assembly, vibration component and mixing component, wherein crushing assembly is located above vibration component, and mixing component is located below vibration component. Crushing assembly and vibration component cooperate and act effectively to break up caked material, and mixing component completes secondary mixing. The equipment solves the problems of uneven mixing, difficult dispersion of caked material and the like when the traditional mixing equipment processes trace element fertilizer and microbial agent through two -stage mixing process and integrated crushing design, effectively protects microbial activity while guaranteeing mixing uniformity.

Description

Technical Field

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

[0002] In modern agricultural and horticultural production, the scientific application of micronutrient fertilizers and microbial agents plays a crucial role in increasing crop yield, improving quality, enhancing stress resistance, and improving the soil ecological environment. Effective and uniform physical mixing of micronutrient fertilizers and microbial agents to form compound formulations has become an important application method, with continuously growing market demand. Currently, existing mixing equipment struggles to ensure sufficient dispersion and a highly uniform mixture within a short time, leading to uneven mixing that directly affects application efficacy and the stability of microbial activity. Furthermore, existing mixing equipment often uses simple stirring blades, which have limited effectiveness in handling hard clumps, potentially resulting in undispersed particles or clumps remaining in the mixed product. This not only affects uniformity but may also prevent the effective release and function of the microbial agents trapped within the clumps. Simultaneously, the high-shear stirring or strong mechanical crushing methods used in existing mixing equipment can easily cause physical damage to the microbial cells or excessive local temperature rise, leading to a significant decrease in agent activity and defeating the purpose of mixing. In addition, in order to achieve better mixing effect and deal with agglomeration, the existing technology adopts a multi-device, step-by-step operation method, which significantly reduces production efficiency and increases the loss and pollution risk during material transfer. There is a lack of a dedicated equipment that can efficiently integrate crushing, dispersing and mixing functions. Utility Model Content

[0003] In view of the above problems, this application aims to propose an integrated device that, through a multi-stage processing flow combined with specific crushing or vibration technology, achieves high uniformity mixing while gently and effectively solving the agglomeration problem and protecting microbial activity, thereby improving efficiency.

[0004] To achieve the above objectives, this application provides a mixing device for micronutrient fertilizer and microbial inoculant, including a first mixing chamber and a second mixing chamber. The first mixing chamber includes a first drive unit, a first stirring shaft, and a first stirring blade. The first drive unit is disposed on the top of the first mixing chamber. One end of the first stirring shaft is fixedly connected to the first drive unit, and the other end of the first stirring shaft extends into the first mixing chamber. The first stirring blade is fixedly connected to the other end of the first stirring shaft. The first mixing chamber is used for primary mixing of micronutrient fertilizer and microbial inoculant. The first mixing chamber is disposed on top of the second mixing chamber. The second mixing chamber includes a crushing component, a vibration component, and a mixing component. The crushing component is disposed above the vibration component, and the mixing component is disposed below the vibration component. The crushing component and the vibration component cooperate with each other to break up the clumps of the mixture. The mixing component is used for secondary mixing of micronutrient fertilizer and microbial inoculant.

[0005] The above technical solution uses a first mixing chamber containing a first driving unit, a first stirring shaft, and first stirring blades to perform initial mixing of materials. Then, a second mixing chamber vertically arranged below it continuously processes the products of the initial mixing. The crushing and vibrating components of the second mixing chamber work together to effectively break up any lumps in the mixture. Subsequently, the mixing components below perform secondary mixing of the crushed and dispersed materials. The two-stage processing structure adopted in this technical solution ensures the full uniformity of the final mixture of micronutrient fertilizer and microbial agent, significantly reduces the risk of damage to the activity of microbial agent caused by forceful crushing, and improves mixing efficiency through integrated design.

[0006] In some embodiments, a first discharge pipe is provided at the bottom of the first mixing tank, one end of the first discharge pipe is connected to the first mixing tank, the other end of the first discharge pipe is connected to the second mixing tank, and a first solenoid valve is provided at the other end of the first discharge pipe.

[0007] In some embodiments, the crushing assembly includes a third drive unit, a transmission screw, a pressure roller, and a movable sleeve. The third drive unit is disposed on the side wall of the second mixing chamber. One end of the transmission screw is rotatably connected to the inner wall of the second mixing chamber, and the other end of the transmission screw is connected to the third drive unit. The movable sleeve has an internal thread and is sleeved on the transmission screw. The pressure roller is rotatably connected to the movable sleeve and reciprocates in a direction parallel to the transmission screw.

[0008] In some embodiments, fixed blocks are disposed opposite to each other on the two side walls of the second mixing box. The vibration assembly includes a vibrator, an elastic element, and a vibrating screen. The vibrator is disposed below the elastic element, and the vibrating screen is disposed above the elastic element. The vibrator is mounted on the fixed blocks. One end of the elastic element is connected to the vibrator, and the other end of the elastic element is connected to the vibrating screen. The vibrating screen reciprocates along a direction perpendicular to the movement direction of the pressure roller.

[0009] In some embodiments, the vibrating screen is provided with spikes on one side opposite to the pressure roller, and the vibrating screen is also provided with through holes, with the spikes and through holes spaced apart.

[0010] In some embodiments, the crushing assembly further includes spikes arranged in a ring array on the surface of the pressure roller, the spikes being adapted to the cones and through holes.

[0011] In some embodiments, the mixing assembly includes a second drive unit, a second stirring shaft, and a second stirring blade. The second drive unit is disposed on the side wall of the second mixing chamber. One end of the second stirring shaft is connected to the second drive unit, and the other end of the second stirring shaft extends into the second mixing chamber and is connected to the side wall of the second mixing chamber.

[0012] In some embodiments, the top of the first mixing chamber is provided with a feed inlet, the bottom of the second mixing chamber is provided with a second discharge pipe, one end of the second discharge pipe is provided with a second solenoid valve, and the other end of the second discharge pipe is connected to the second mixing chamber.

[0013] In some embodiments, the system further includes a controller disposed on the side wall of the first mixing tank, the controller being electrically connected to the first drive unit and the second drive unit respectively, the controller being electrically connected to the third drive unit, and the controller being electrically connected to the first solenoid valve and the second solenoid valve respectively.

[0014] Unlike existing technologies, this invention provides a mixing device for micronutrient fertilizers and microbial agents. After primary mixing in a first mixing chamber, the material enters a second mixing chamber controlled by a first discharge pipe and a first solenoid valve. In the second mixing chamber, the pressure rollers of the crushing component work in conjunction with the spikes and through holes of the vibrating screen to gently and effectively break up clumps; the vibrating component disperses the material through directional vibration; and the mixing component completes the secondary mixing. The controller intelligently coordinates the operation of each component, ensuring full automation from feeding, primary mixing, crushing and screening to secondary mixing. The mixing device provided by this invention adopts a two-stage mixing and integrated crushing design, effectively protecting microbial activity while ensuring mixing uniformity, and solving the problems of difficult clump dispersion, uneven mixing, and low efficiency in traditional mixing equipment when processing micronutrient fertilizers and microbial agents.

[0015] In summary, the micronutrient fertilizer and microbial agent mixing equipment provided by this utility model, through a two-stage processing flow combined with specific crushing and vibration technologies, achieves high uniformity mixing while gently and effectively solving the clumping problem and protecting microbial activity, thus improving efficiency.

[0016] The above description of the utility model is merely an overview of the technical solution of this utility model. In order to enable those skilled in the art to better understand the technical solution of this utility model and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this utility model easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this utility model. Attached Figure Description

[0017] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0018] In the accompanying drawings of the instruction manual: Figure 1 This is a schematic diagram of the specific structure of the micronutrient fertilizer and microbial agent mixing equipment described in the specific implementation method; Figure 2A schematic diagram of the specific structure of the first mixing box, the second mixing box, and the first drive unit in a specific implementation embodiment; Figure 3 This is a schematic diagram of the specific structure of the vibration component, the movable sliding sleeve, the spike, and the through hole described in the specific implementation method; Figure 4 This is a schematic diagram of the specific structure of the crushing component, vibrating screen, and through hole described in the specific implementation method; Figure 5 This is a schematic diagram of the specific structure of the pressure roller and the spiked part in a specific embodiment.

[0019] Explanation of reference numerals in the attached figures: 1. First mixing chamber; 11. First drive unit; 12. First stirring shaft; 13. First stirring blade; 14. First discharge pipe; 15. First solenoid valve; 2. Second mixing chamber; 21. Crushing assembly; 211. Third drive unit; 212. Transmission screw; 213. Pressure roller; 214. Moving sleeve; 215. Spike; 22. Vibration assembly; 221. Vibrator; 222. Elastic element; 223. Vibrating screen; 23. Mixing assembly; 231. Second drive unit; 232. Second stirring shaft; 233. Second stirring blade; 24. Spike; 25. Through hole; 26. Fixing block; 27. Second discharge pipe; 28. Second solenoid valve. Detailed Implementation

[0020] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.

[0021] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0022] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0023] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0024] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0025] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0026] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0027] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0029] Please see Figures 1 to 5 This embodiment provides a mixing device for micronutrient fertilizer and microbial agent, including a first mixing chamber 1 and a second mixing chamber 2. The first mixing chamber 1 includes a first drive unit 11, a first stirring shaft 12, and a first stirring blade 13. The first drive unit 11 is disposed on the top of the first mixing chamber 1. One end of the first stirring shaft 12 is fixedly connected to the first drive unit 11, and the other end of the first stirring shaft 12 extends into the first mixing chamber 1. The first stirring blade 13 is fixedly connected to the other end of the first stirring shaft 12. The first mixing chamber 1 is used for primary mixing of micronutrient fertilizer and microbial agent. The first mixing chamber 1 is disposed on top of the second mixing chamber 2. The second mixing chamber 2 includes a crushing component 21, a vibration component 22, and a mixing component 23. The crushing component 21 is disposed above the vibration component 22, and the mixing component 23 is disposed below the vibration component 22. The crushing component 21 and the vibration component 22 cooperate with each other to break up the clumps of the mixture. The mixing component 23 is used for secondary mixing of micronutrient fertilizer and microbial agent.

[0030] In this embodiment, the first mixing box 1 refers to the primary mixing container set on the upper part of the equipment, which is used to achieve the primary mixing of materials. It includes three core components: the first drive unit 11 refers to the power device fixed on the top of the box, which is usually a geared motor, used to provide rotational kinetic energy; the first stirring shaft 12 refers to the metal rotating shaft that runs vertically through the box, preferably made of stainless steel, and its upper end is rigidly connected to the output end of the drive unit; the first stirring blades 13 refer to multiple sets of paddle-type structures that are radially fixed to the lower end of the stirring shaft, which can be distributed in a spiral shape, and are used to perform preliminary stirring and mixing of trace element fertilizer and microbial agent in the box.

[0031] The second mixing chamber 2 is a secondary processing container located directly below the first mixing chamber 1, which directly receives the primary mixing products through a vertical layout. The second mixing chamber 2 integrates three functional modules: the crushing component 21 is a mechanical grinding mechanism installed on the upper part of the chamber, whose toothed working surface can apply shear force to the agglomerated material; the vibration component 22 is a screen-type vibrating platform located below the crushing component 21, typically driven by an eccentric wheel, which assists in dispersing particles through high-frequency micro-amplitude vibration; and the mixing component 23 is a secondary stirring mechanism located at the bottom of the chamber, used for deep mixing of the crushed material. It should be noted that the crushing component 21 and the vibration component 22 form an agglomeration treatment unit through spatial stacking and coordinated motion: after the crushing component 21 performs primary crushing, the material falls to the vibration component 22 for further dispersion, and finally, the mixing component 23 completes the fine secondary mixing.

[0032] In this embodiment, a first mixing chamber 1, comprising a first driving unit 11, a first stirring shaft 12, and a first stirring blade 13, is used to perform a preliminary primary mixing of the materials. Then, a second mixing chamber 2, vertically arranged below it, continuously processes the primary mixing product. The crushing component 21 and the vibration component 22 of the second mixing chamber 2 work together to effectively break up any lumps in the mixture. Subsequently, the mixing component 23 located below performs a secondary mixing of the crushed and dispersed materials. The two-stage processing structure adopted in this embodiment ensures the full uniformity of the final mixing of micronutrient fertilizer and microbial agent, significantly reduces the risk of damage to the activity of microbial agent caused by forceful crushing, and improves mixing efficiency through integrated design.

[0033] Please see Figures 1 to 5 In some embodiments, the bottom of the first mixing tank 1 is provided with a first discharge pipe 14, one end of the first discharge pipe 14 is connected to the first mixing tank 1, the other end of the first discharge pipe 14 is connected to the second mixing tank 2, and the other end of the first discharge pipe 14 is provided with a first solenoid valve 15.

[0034] In this embodiment, the bottom of the first mixing tank 1 refers to the material outlet area located at the center or eccentric position of the lower end cap of the tank body. The first discharge pipe 14 refers to a metal pipe installed vertically or inclined in the material outlet area. Its diameter is designed according to the material characteristics. One end of the first discharge pipe 14 is connected to the internal cavity of the first mixing tank 1 by welding, and the other end of the first discharge pipe 14 extends and connects to the upper inlet of the second mixing tank 2, thereby forming a closed channel for the transfer of material from the primary mixing tank to the secondary processing tank. The first solenoid valve 15 refers to an electrically controlled flow regulating device installed at the other end of the first discharge pipe 14 (i.e., near the inlet of the second mixing tank 2). Its valve body is sealed to the pipe by threads or flanges. The first solenoid valve 15 realizes the rapid opening and closing of the valve core by receiving external electrical signals. It is used to accurately control the timing and flow rate of the primary mixing product to the second mixing tank 2, avoid disorderly leakage of untreated material during equipment start-up or shutdown, and prevent airflow or material from backflowing into the first mixing tank 1 during the processing of the second mixing tank 2.

[0035] This embodiment achieves precise control of material transport between two-stage mixing equipment by setting a first discharge pipe 14 at the bottom of the first mixing tank 1 and configuring a first solenoid valve 15 at its end. The first discharge pipe 14 connects the first mixing tank 1 and the second mixing tank 2 to form a closed channel, ensuring no leakage during material transfer. The first solenoid valve 15 controls the opening and closing of the valve core through an electrical signal, which can precisely adjust the timing and flow rate of the primary mixing product to the second mixing tank 2, and effectively prevent disorderly material leakage during equipment start-up and shutdown, as well as airflow or material backflow during the processing in the second mixing tank 2. This embodiment ensures the sealing of material transfer and achieves orderly connection between the two-stage mixing processes, improving the stability and controllability of the overall mixing process.

[0036] Please see Figures 1 to 5 In some embodiments, the crushing assembly 21 includes a third drive unit 211, a transmission screw 212, a pressure roller 213, and a movable sleeve 214. The third drive unit 211 is disposed on the side wall of the second mixing box 2. One end of the transmission screw 212 is rotatably connected to the inner wall of the second mixing box 2, and the other end of the transmission screw 212 is connected to the third drive unit 211. The movable sleeve 214 has an internal thread and is sleeved on the transmission screw 212. The pressure roller 213 is rotatably connected to the movable sleeve 214 and reciprocates in a direction parallel to the transmission screw 212.

[0037] In this embodiment, the crushing assembly 21 includes a third drive unit 211, a transmission screw 212, a pressure roller 213, and a movable sliding sleeve 214. The third drive unit 211 is a power unit fixedly installed on the side wall of the second mixing chamber 2, typically a servo motor or stepper motor, used to provide precise and controllable rotational power. The transmission screw 212 is a horizontally arranged precision screw, one end of which is rotatably connected to the inner wall of the second mixing chamber 2 via a bearing, and the other end is directly connected to the output shaft of the third drive unit 211, used to convert rotational motion into linear motion. The movable sliding sleeve 214 is a sliding component with an internal thread that matches the transmission screw 212, sleeved on the transmission screw 212 and moving axially as the screw rotates. The pressure roller 213 refers to a cylindrical roller with a specific texture on its surface. It is usually made of high-hardness alloy steel and is rotatably connected to the movable sleeve 214 through a bearing. This allows the pressure roller 213 to move back and forth with the movable sleeve 214 in a direction parallel to the transmission screw 212, while maintaining its own rotational freedom.

[0038] In this embodiment, the crushing component 21 drives the transmission screw 212 to rotate via the third drive unit 211, which in turn moves the movable sleeve 214 along the screw axis, thereby enabling the pressure roller 213 to reciprocate parallel to the direction of the transmission screw 212. The structural design of this embodiment allows the pressure roller 213 to maintain its own rotation while applying continuous rolling and squeezing action to the material during movement, which is more effective and gentler in breaking up agglomerated materials compared to traditional fixed crushing methods. The precise fit between the transmission screw 212 and the movable sleeve 214 ensures the smoothness and positioning accuracy of the pressure roller 213's movement. The controllable power provided by the third drive unit 211 allows the crushing process to be flexibly adjusted according to the material characteristics, maximizing the protection of the microbial agent's activity while ensuring the crushing effect.

[0039] Please see Figures 1 to 5 In some embodiments, fixed blocks 26 are arranged opposite each other on the two side walls of the second mixing box 2. The vibration assembly 22 includes a vibrator 221, an elastic element 222, and a vibrating screen 223. The vibrator 221 is arranged below the elastic element 222, and the vibrating screen 223 is arranged above the elastic element 222. The vibrator 221 is placed on the fixed blocks 26. One end of the elastic element 222 is connected to the vibrator 221, and the other end of the elastic element 222 is connected to the vibrating screen 223. The vibrating screen 223 reciprocates along a direction perpendicular to the movement of the pressure roller 213.

[0040] In this embodiment, the fixed blocks 26 oppositely arranged on the two side walls of the second mixing box 2 refer to the support bases welded or bolted to the two sides of the inner wall of the box, usually made of cast iron or steel plate, used to provide a stable installation base for the vibration assembly 22. The vibration assembly 22 consists of a vibrator 221, an elastic element 222, and a vibrating screen 223. The vibrator 221 is a mechanical or electromagnetic vibration source installed on the fixed blocks 26, used to generate mechanical vibration at a specific frequency; the elastic element 222 is a buffer element connecting the vibrator 221 and the vibrating screen 223, whose elastic coefficient is designed according to the screen load, used to transmit vibration and absorb impact; the vibrating screen 223 is a horizontally arranged perforated metal plate, the aperture of which is determined according to the particle size of the material, which is suspended above the vibrator 221 by the elastic element 222 and can reciprocate along the direction perpendicular to the movement of the pressure roller 213.

[0041] In this embodiment, the vibrator 221 is stably installed inside the second mixing chamber 2 via a fixing block 26. The vibration generated by the vibrator 221 is buffered by the elastic element 222 and then transmitted to the vibrating screen 223, causing it to reciprocate along a direction perpendicular to the movement of the pressure roller 213. The directional vibration design adopted in this embodiment avoids mutual interference with the movement of the pressure roller 213 and effectively disperses the crushed material. The perforated structure of the vibrating screen 223 allows for the grading and screening of the material, while the elastic element 222 absorbs the impact while transmitting vibration, ensuring stable vibration. The symmetrical arrangement of the fixing blocks 26 provides stable support for the entire vibrating assembly 22, making the screening process more efficient and reliable. This embodiment achieves uniform dispersion and fine screening of the crushed material, creating favorable conditions for subsequent mixing processes.

[0042] Please see Figures 1 to 5 In some embodiments, the vibrating screen 223 is provided with spikes 24 on one side relative to the pressure roller 213, and the vibrating screen 223 is also provided with through holes 25, with the spikes 24 and through holes 25 spaced apart.

[0043] In this embodiment, the side of the vibrating screen 223 relative to the pressure roller 213 specifically refers to the upper surface area of ​​the screen facing the working surface of the pressure roller 213. The spikes 24 are cone-shaped protrusions regularly arranged on this surface, with a tip angle selectable from 60-90 degrees, used to pierce and break up agglomerated materials during vibration. The through holes 25 are circular or polygonal holes distributed between the spikes 24, with chamfered edges to prevent material from adhering to the walls, mainly used to allow materials of the correct particle size to pass through the screen. The spikes 24 and through holes 25 are arranged in an alternating array, ensuring both sufficient material crushing and maintaining a sufficient screening throughput.

[0044] This embodiment achieves an organic combination of crushing and screening functions by setting spaced spikes 24 and through holes 25 on the vibrating screen 223. The spikes 24 pierce the material at multiple points during screen vibration, effectively breaking down fine agglomerates remaining after processing by the pressure roller 213; simultaneously, the through holes 25 provide a smooth passage for qualified particle size materials. The optimized arrangement of the spikes 24 and through holes 25 ensures sufficient crushing strength while maintaining good material throughput, enabling the screen to simultaneously perform secondary crushing and grading screening. The composite structural design adopted in this embodiment significantly improves the processing efficiency of mixtures of trace element fertilizers and microbial agents, and is particularly suitable for processing easily agglomerated materials, ensuring uniform mixing while avoiding the impact of excessive crushing on microbial activity.

[0045] Please see Figures 1 to 5 In some embodiments, the crushing assembly 21 further includes spikes 215 arranged in a ring array on the surface of the pressure roller 213, the spikes 215 being adapted to the spikes 24 and the through holes 25.

[0046] In this embodiment, the crushing component 21 further includes spikes 215. The spikes 215 refer to conical or pyramidal protrusions evenly distributed on the cylindrical surface of the pressure roller 213. The circular array means that the spikes 215 are arranged equidistantly along the circumference of the pressure roller 213 to form a circular band, and are distributed in multiple layers along the axial direction of the pressure roller 213 at a fixed pitch. The arrangement used in this embodiment ensures that the pressure roller 213 can effectively cooperate with the screen at any rotation angle. The compatibility with the spikes 24 and through holes 25 means that the size and spacing of the spikes 215 maintain a specific geometric relationship with the spikes 24 and through holes 25 on the vibrating screen 223: the spikes 215 can accurately insert into the screen through holes 25 without interference during the movement of the pressure roller 213, while simultaneously forming an interlaced shearing motion with the spikes 24.

[0047] This embodiment features a ring-shaped array of spikes 215 on the surface of the pressure roller 213, forming a precisely fitted crushing system with the spikes 24 and through holes 25 of the vibrating screen 223. The arrangement of the spikes 215 ensures that they can both exert a staggered shearing effect with the spikes 24 and accurately insert into the through holes 25 without interference during the movement of the pressure roller 213. The adaptive design employed in this embodiment allows the material to undergo multi-directional crushing action between the pressure roller 213 and the screen, significantly improving the crushing efficiency and uniformity of agglomerated materials. The coordinated work of the spikes 215 and the screen assembly ensures both gentle and effective crushing while avoiding damage to microbial activity from excessive crushing, making it particularly suitable for processing mixtures of easily agglomerated trace element fertilizers and microbial agents.

[0048] Please see Figures 1 to 5In some embodiments, the mixing assembly 23 includes a second drive unit 231, a second stirring shaft 232, and a second stirring blade 233. The second drive unit 231 is disposed on the side wall of the second mixing chamber 2. One end of the second stirring shaft 232 is connected to the second drive unit 231, and the other end of the second stirring shaft 232 extends into the second mixing chamber 2 and is connected to the side wall of the second mixing chamber 2.

[0049] In this embodiment, the mixing component 23 includes a second drive unit 231, a second stirring shaft 232, and second stirring blades 233. The second drive unit 231 is a power unit fixedly installed on the outer surface of the side wall of the second mixing chamber 2. It typically uses a dustproof and moisture-proof motor, with its output shaft penetrating the chamber wall and connected via a mechanical seal, providing the rotational power required for secondary mixing. The second stirring shaft 232 is a rigid rotating shaft arranged horizontally or inclined inside the second mixing chamber 2. One end is directly connected to the output end of the second drive unit 231 via a coupling, and the other end is connected to the side wall of the second mixing chamber 2 via a bearing assembly, forming a stable single-end support structure. The second stirring blades 233 are multiple sets of stirring paddles welded or bolted at a specific angle along the length of the second stirring shaft 232, used to generate forced convection within the chamber. The blade arrangement used in this embodiment must ensure sufficient movement of the material in both the axial and radial directions. Their installation position is located below the vibrating screen 223, used to receive and secondary mix the material after crushing and screening.

[0050] In this embodiment, the mixing component 23 drives the second stirring shaft 232 to rotate via the second drive unit 231, which in turn drives the second stirring blades 233 to perform forced convection mixing of the materials. The second stirring shaft 232 adopts a single-end support structure, with one end connected to the second drive unit 231 and the other end rigidly connected to the side wall of the second mixing chamber 2. This reduces the number of openings in the chamber, lowers the risk of leakage, and ensures the operational stability of the mixing system. The second stirring blades 233 are located below the vibrating screen 223, effectively receiving the crushed and screened materials. Through the blades arranged at a specific angle, they achieve thorough axial and radial mixing, significantly improving the final uniformity of the mixture of micronutrient fertilizer and microbial agent.

[0051] Please see Figures 1 to 5 In some embodiments, the top of the first mixing tank 1 is provided with a feed inlet, the bottom of the second mixing tank 2 is provided with a second discharge pipe 27, one end of the second discharge pipe 27 is provided with a second solenoid valve 28, and the other end of the second discharge pipe 27 is connected to the second mixing tank 2.

[0052] In this embodiment, the top of the first mixing tank 1 specifically refers to the central position of the top end cap or the symmetrically distributed opening area. The feed inlet refers to the funnel-shaped or flange-shaped interface structure set in this area, made of the same material as the tank body, used to receive trace element fertilizer and microbial inoculant raw materials simultaneously or in batches. A sealing cap or flexible connection can be configured at its interface to achieve environmental isolation during the feeding process. The bottom of the second mixing tank 2 refers to the material collection area designed near the lowest point of the bottom end cap of the tank body. The second discharge pipe 27 refers to the metal pipe installed at an angle or vertically in this area. The other end of the second discharge pipe 27 is connected to the internal cavity of the second mixing tank 2 by welding or flange sealing, used to output the final mixed product; its inclined pipe design can reduce material residue. One end of the second discharge pipe 27 (i.e., the end of the pipe away from the tank body) is equipped with a second solenoid valve 28. The second solenoid valve 28 is an electrically controlled shut-off valve coaxially connected to the pipe. The valve body material matches the pipe. It receives control signals to realize the precise opening and closing of the valve core, used to control the discharge flow rate and timing of the mixed product as needed, while preventing external air backflow and contamination of the mixing environment inside the tank.

[0053] This embodiment achieves sealed feeding of raw materials by setting an inlet at the top of the first mixing tank 1, and forms a closed discharge system by configuring a second discharge pipe 27 with a second solenoid valve 28 at the bottom of the second mixing tank 2. The structural design of the inlet ensures no leakage or contamination during the raw material feeding process, the inclined arrangement of the second discharge pipe 27 reduces material residue, and the precise control function of the second solenoid valve 28 ensures the orderly discharge of the mixed products. The structural design adopted in this embodiment ensures that the entire mixing process, from raw material input to finished product output, is in a closed environment, which not only guarantees hygienic conditions for material transfer, but also achieves precise adjustment of discharge flow rate and time through intelligent control of the solenoid valve, effectively preventing external contaminants from entering the mixing system and ensuring the quality stability of the final product.

[0054] Please see Figures 1 to 5 In some embodiments, a controller is also included. The controller is disposed on the side wall of the first mixing tank 1 and is electrically connected to the first drive unit and the second drive unit, respectively. The controller is electrically connected to the third drive unit and the first solenoid valve 15 and the second solenoid valve 28, respectively.

[0055] In this embodiment, the controller refers to an intelligent control device installed on the outer surface of the side wall of the first mixing tank 1, which is connected to the tank body by bolts or guide rail clips. The controller is electrically connected to the first drive unit, the second drive unit, and the third drive unit via shielded cables, and is used to receive sensor signals and output PWM or analog signals to precisely adjust the speed, direction, and running time of each power source. At the same time, the controller is electrically connected to the first solenoid valve 15 and the second solenoid valve 28 via relays or direct digital output ports, and can programmably control the valve opening sequence, duration, and opening degree.

[0056] This embodiment achieves intelligent control of the entire mixing equipment by setting up a controller. The controller is electrically connected to the first, second, and third drive units, respectively, to precisely adjust the speed and operating parameters of each drive unit; it is also electrically connected to the first solenoid valve 15 and the second solenoid valve 28 to intelligently control the transfer and discharge sequence of materials. The centralized control method adopted in this embodiment ensures the coordinated operation of each mixing process, enabling the orderly connection of process links such as primary mixing, crushing and vibration, and secondary mixing. The application of the controller not only improves the automation level of equipment operation, but also enables the standardization of the mixing process through parametric programming, ensuring the quality consistency of different batches of products, and significantly improving the efficiency and stability of mixing micronutrient fertilizers and microbial agents.

[0057] Compared with the prior art, the present invention has the following advantages when using the above technical solution: The micronutrient fertilizer and microbial agent mixing equipment provided by the present invention, after primary mixing in the first mixing chamber 1, allows the material to enter the second mixing chamber 2 under the control of the first discharge pipe 14 and the first solenoid valve 15. In the second mixing chamber 2, the pressure roller 213 of the crushing component 21 works synergistically with the spikes 215 and the cones 24 and through holes 25 of the vibrating screen 223 to gently and effectively break up clumps; the vibrating component 22 disperses the material through directional vibration; and the mixing component 23 finally completes the secondary mixing. The controller intelligently coordinates the operation of each component, ensuring full automation from feeding, primary mixing, crushing and screening to secondary mixing. The mixing equipment provided by the present invention adopts a two-stage mixing and integrated crushing design, effectively protecting microbial activity while ensuring mixing uniformity, and solving the problems of difficult dispersion of clumps, uneven mixing, and low efficiency in traditional mixing equipment when processing micronutrient fertilizers and microbial agents.

[0058] In summary, the micronutrient fertilizer and microbial agent mixing equipment provided by this utility model, through a two-stage processing flow combined with specific crushing and vibration technologies, achieves high uniformity mixing while gently and effectively solving the clumping problem and protecting microbial activity, thus improving efficiency.

[0059] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this utility model, this should not limit the scope of patent protection of this utility model. Any technical solutions resulting from equivalent structural or procedural substitutions or modifications made based on the essential concept of this utility model and utilizing the content described in the text and drawings of this utility model, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this utility model.

Claims

1. A mixing device for trace element fertilizer and microbial inoculant, characterized in that, include: The first mixing chamber includes a first drive unit, a first stirring shaft, and a first stirring blade. The first drive unit is disposed on the top of the first mixing chamber. One end of the first stirring shaft is fixedly connected to the first drive unit, and the other end of the first stirring shaft extends into the first mixing chamber. The first stirring blade is fixedly connected to the other end of the first stirring shaft. The first mixing chamber is used to mix micronutrient fertilizer and microbial agent in one step. The second mixing chamber is located on top of the first mixing chamber. The second mixing chamber includes a crushing component, a vibration component, and a mixing component. The crushing component is located above the vibration component, and the mixing component is located below the vibration component. The crushing component and the vibration component cooperate with each other to break up the clumps of the mixture. The mixing component is used for secondary mixing of micronutrient fertilizer and microbial agent.

2. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 1, characterized in that, The bottom of the first mixing chamber is provided with a first discharge pipe, one end of the first discharge pipe is connected to the first mixing chamber, the other end of the first discharge pipe is connected to the second mixing chamber, and the other end of the first discharge pipe is provided with a first solenoid valve.

3. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 2, characterized in that, The crushing assembly includes a third drive unit, a transmission screw, a pressure roller, and a movable sliding sleeve. The third drive unit is disposed on the side wall of the second mixing chamber. One end of the transmission screw is rotatably connected to the inner wall of the second mixing chamber, and the other end of the transmission screw is connected to the third drive unit. The movable sliding sleeve has an internal thread and is sleeved on the transmission screw. The pressure roller is rotatably connected to the movable sliding sleeve and reciprocates in a direction parallel to the transmission screw.

4. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 3, characterized in that, Fixed blocks are arranged opposite each other on the two side walls of the second mixing box. The vibration assembly includes a vibrator, an elastic element, and a vibrating screen. The vibrator is arranged below the elastic element, and the vibrating screen is arranged above the elastic element. The vibrator is mounted on the fixed blocks. One end of the elastic element is connected to the vibrator, and the other end of the elastic element is connected to the vibrating screen. The vibrating screen reciprocates along a direction perpendicular to the movement of the pressure roller.

5. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 4, characterized in that, The vibrating screen has spikes on one side opposite to the pressure roller, and the vibrating screen also has through holes, with the spikes and through holes spaced apart.

6. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 5, characterized in that, The crushing component also includes spikes arranged in a ring array on the surface of the pressure roller, the spikes being adapted to the spike cone and the through hole.

7. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 3, characterized in that, The mixing assembly includes a second drive unit, a second stirring shaft, and a second stirring blade. The second drive unit is disposed on the side wall of the second mixing chamber. One end of the second stirring shaft is connected to the second drive unit, and the other end of the second stirring shaft extends into the second mixing chamber and is connected to the side wall of the second mixing chamber.

8. The mixing equipment for trace element fertilizer and microbial inoculant according to claim 7, characterized in that, The first mixing chamber has a feed inlet at the top and a second discharge pipe at the bottom. One end of the second discharge pipe is equipped with a second solenoid valve, and the other end of the second discharge pipe is connected to the second mixing chamber.

9. The equipment for mixing trace element fertilizer and microbial inoculant according to claim 8, characterized in that, It also includes a controller, which is disposed on the side wall of the first mixing tank. The controller is electrically connected to the first drive unit and the second drive unit respectively, the controller is electrically connected to the third drive unit, and the controller is electrically connected to the first solenoid valve and the second solenoid valve respectively.

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