Dispersing device and application thereof in preparation of efficient slow / controlled release fertilizer

Abstract

The invention discloses a dispersing device which comprises a dispersing tank, a driving mechanism, a crushing and screening mechanism and a stirring and dispersing mechanism, the crushing and screening mechanism is arranged at the upper end of the interior of the dispersing tank and used for crushing, dispersing and screening chemical fertilizer fed into the dispersing tank, so that the chemical fertilizer with particles smaller than screen holes falls into the lower end of the interior of the dispersing tank; the stirring and dispersing mechanism is arranged at the lower end in the dispersing tank. Through the synergistic effect of the crushing and screening mechanism and the stirring and dispersing mechanism, efficient dispersing and mixing of the chemical fertilizer are achieved. The crushing and screening mechanism crushes and disperses the chemical fertilizer, so that chemical fertilizer particles are uniformly distributed in the dispersing tank, subsequent mixing is facilitated, a longitudinal stirring and dispersing assembly and a transverse stirring and dispersing assembly in the stirring and dispersing mechanism work at the same time, and all-directional overturning of the chemical fertilizer in the vertical direction and the horizontal direction is achieved; the overall flowability is enhanced during chemical fertilizer mixing, and the dispersing and mixing efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of slow / controlled release fertilizer production, in particular to a dispersing device and application thereof in preparing high-efficiency slow / controlled release fertilizer. Background Art

[0002] With the continuous growth of the global population and the increasing shortage of arable land resources, improving crop yield and quality has become the key to agricultural development. Traditional fertilizer use methods have problems such as low utilization rate and serious environmental pollution. Therefore, the research and development of high-efficiency slow / controlled-release fertilizers came into being. Slow / controlled-release fertilizers control the nutrient release rate, improve fertilizer utilization rate, reduce loss, and thus reduce the impact on the environment. Traditional mixing methods often rely on simple stirring equipment, which often have problems such as uneven mixing, low efficiency, and easy dust pollution during the mixing process, which seriously affects the application effect of slow / controlled-release fertilizers.

[0003] In addition, existing mixing equipment usually only has a single stirring function and lacks an effective screening and dispersion mechanism, which causes fertilizer particles to easily agglomerate during the mixing process and cannot achieve efficient and uniform mixing. The dust generated by some equipment during the mixing process not only pollutes the environment, but may also harm the health of operators.

[0004] In order to solve the above problems, there is an urgent need for a mixing equipment that can simultaneously screen, crush, scatter and stir and disperse fertilizers in all directions. This equipment should be efficient, low in dust and easy to clean, so as to improve the production efficiency and product quality of fertilizers, while reducing potential harm to the environment and operators.

[0005] Therefore, a dispersing device and its application in preparing high-efficiency slow / controlled-release fertilizers are proposed. Summary of the invention

[0006] The object of the present invention is to provide a dispersing device and its application in the preparation of high-efficiency slow / controlled-release fertilizers. Based on the above background, the novel dispersing device proposed in the present invention realizes efficient and uniform mixing of fertilizer particles by combining the synergistic effects of a screening mechanism, a crushing mechanism, a stirring and dispersing mechanism, and a scraping component. The dispersing device of the present invention can not only effectively crush and scatter fertilizer particles, but also realize all-round turning of the fertilizer in the mixing tank through a multi-directional stirring and dispersing component, which significantly improves the mixing efficiency and mixing uniformity. At the same time, the dispersing device of the present invention is also equipped with auxiliary devices such as dust prevention and scraping to ensure the environmental friendliness of the mixing process and the easy maintainability of the equipment, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: a dispersing device, comprising: A dispersion tank, wherein the top of the dispersion tank is open, a cover plate is fixedly installed on the top of the dispersion tank, a feeding port is opened on the top of the cover plate, a feeding trough is fixedly installed on the feeding port, a dust shield is hinged on the top of the feeding trough, a support leg for supporting the dispersion tank is fixedly installed on the lower end of the dispersion tank, a discharge pipe is connected to the bottom of the dispersion tank, and a discharge valve is installed on the discharge pipe; A crushing and screening mechanism, which is arranged at the upper end of the dispersion tank and is used to crush, disperse and screen the fertilizer put into the dispersion tank, so that the fertilizer with particles smaller than the sieve holes falls into the lower end of the dispersion tank; A stirring and dispersing mechanism, the stirring and dispersing mechanism is arranged at the lower end of the dispersion tank, and the stirring and dispersing mechanism is used to stir and disperse the screened fertilizer; A driving mechanism is installed on the cover plate, and is used to drive the crushing and screening mechanism and the stirring and dispersing mechanism to operate.

[0008] In a dispersion device according to the present invention, optionally, the driving mechanism includes a driving motor and a transmission rod, the driving motor is fixedly mounted on the top of the cover plate through a motor seat, the transmission rod is rotatably mounted inside the dispersion tank, and the upper end of the transmission rod is rotatably passed through the cover plate through a second bearing and is fixedly connected to the rotating shaft of the driving motor; The stirring and dispersing mechanism comprises a stirring and dispersing pipe, the upper end of which is rotatably mounted on the bottom of the cover plate through a mounting member, the lower end of which extends into the interior of the dispersion tank, and a longitudinal stirring and dispersing assembly is provided at the lower end of the stirring and dispersing pipe, and the longitudinal stirring and dispersing assembly is used to turn over the fertilizer located at the lower end of the dispersion tank from bottom to top; A transverse stirring and dispersing assembly is arranged on the stirring and dispersing pipe above the longitudinal stirring and dispersing assembly, and the transverse stirring and dispersing assembly is provided with multiple groups, and the transverse stirring and dispersing assembly is used to push the fertilizer located at the center of the dispersion tank toward the inner wall of the dispersion tank; The transmission rod drives the stirring and dispersing tube to rotate through the first transmission assembly; The transmission rod drives the lateral stirring and dispersing assembly to rotate through the second transmission assembly.

[0009] In a dispersing device according to the present invention, optionally, the first transmission assembly includes an inner gear ring, a first gear, a second gear and a rotating shaft, the inner gear ring is fixedly connected to the inner wall of the upper end of the stirring and dispersing tube, the lower end of the transmission rod rotates and extends into the interior of the stirring and dispersing tube, the first gear is fixedly sleeved on the upper end of the transmission rod, the second gear is arranged in the interior of the stirring and dispersing tube, the first gear is meshed with the second gear, the second gear is meshed with the inner gear ring, the lower end of the rotating shaft is fixedly connected to the second gear, the upper end of the rotating shaft is rotatably connected to the lower end of the cover plate through the first bearing, and the stirring and dispersing tube can be driven to rotate when the transmission rod rotates, and the stirring and dispersing tube can rotate relative to the transmission rod.

[0010] In a dispersing device according to the present invention, optionally, the longitudinal stirring and dispersing component includes a longitudinal spiral blade, and the longitudinal spiral blade is fixedly welded to the outer wall of the lower end of the stirring and dispersing tube; The transverse stirring and dispersing assembly comprises a transverse stirring rod, one end of which rotates and extends into the interior of the stirring and dispersing tube, and one end of the transverse stirring rod away from the stirring and dispersing tube is fixedly connected with a transverse spiral blade; The second transmission assembly includes a driving bevel gear and a driven bevel gear, the driven bevel gear is fixedly connected to one end of the transverse stirring rod close to the stirring and dispersing tube, the driving bevel gear is fixedly sleeved on the transmission rod, and the driven bevel gear is meshed with the driving bevel gear.

[0011] In a dispersion device according to the present invention, optionally, the crushing and screening mechanism includes an annular seat, a sieve plate and an annular sleeve, the annular seat is fixed to the bottom of the sieve plate, the annular seat is fixedly connected to the upper end of the inner wall of the dispersion tank, the stirring and dispersing tube rotates and penetrates the sieve plate, the annular sleeve is fixedly sleeved on the upper end of the stirring and dispersing tube, the outer wall of the annular sleeve is fixedly connected to a plurality of dispersion rods, the bottom of the dispersion rods is fixedly connected to bristles, and the lower ends of the bristles are in contact with the upper surface of the sieve plate.

[0012] In a dispersing device according to the present invention, optionally, the mounting member includes a mounting seat, a flange is fixedly welded to the top of the mounting seat, the flange is fixed to the bottom of the cover plate by bolts, and the upper end of the stirring and dispersing tube is rotatably mounted inside the mounting seat through a third bearing.

[0013] In a dispersing device according to the present invention, optionally, an annular limit plate is fixedly welded to the top of the stirring and dispersing tube, an annular baffle is fixedly connected to the inner wall of the mounting seat, a ball seat is provided at the bottom of the annular limit plate, a ball is rotatably mounted in the ball seat, and the ball is in rolling contact with the top of the annular baffle.

[0014] In a dispersing device according to the present invention, optionally, a scraping assembly is installed on the outer wall of the stirring and dispersing tube, and the scraping assembly includes a connecting rod, one end of the connecting rod is fixedly connected to the outer wall of the stirring and dispersing tube, and the other end of the connecting rod is fixedly connected to a scraper, and the scraper is in contact with the inner wall of the dispersion tank.

[0015] In a dispersing device according to the present invention, optionally, an operation port is opened at the upper end of the outer wall of the dispersing tank, a door panel is installed on the operation port, and a handle is fixedly connected to the door panel.

[0016] The present invention also provides an application of a dispersing device in preparing a high-efficiency slow / controlled-release fertilizer, which specifically comprises the following steps: S1. Raw material preparation. High-efficiency slow / controlled-release fertilizers are composed of nitrogen source, phosphorus source, potassium source, organic matter, slow-release agent and biologically active substances. By weight percentage, the nitrogen source is 20%-50% urea, the phosphorus source is 10%-40% diammonium phosphate, the potassium source is 10%-40% potassium sulfate, the organic matter is 0.5%-5% humic acid, the slow-release agent is 0.5%-5% sodium polyacrylate, and the biologically active substance is 0.05%-0.1% microbial agent; S2, mixing, opening the dust shield, adding the urea, diammonium hydrogen phosphate, potassium sulfate and humic acid in step S1 into the dispersion tank through the feeding port, and then closing the dust shield; S3, start the driving motor, at this time the driving motor drives the transmission rod to rotate, the rotating transmission rod drives the second gear to rotate through the first gear, the rotating second gear drives the stirring and dispersing tube to rotate through the inner gear ring, at this time the stirring and dispersing tube also rotates relative to the transmission rod, the rotating stirring and dispersing tube drives the annular sleeve to rotate, so that the dispersing rod on the annular sleeve stirs and disperses the fertilizer particles falling on the sieve plate, the dispersed fertilizer particles fall to the lower end of the dispersion tank, the rotating longitudinal spiral blades turn over the fertilizer falling to the lower end of the dispersion tank from bottom to top, the rotating transmission rod drives the transverse stirring rod to rotate through the active bevel gear and the driven bevel gear, and at the same time the stirring and dispersing tube drives the transverse stirring rod to rotate, so that the rotating transverse spiral blades push the fertilizer close to the transmission rod toward the inner wall direction of the dispersion tank, as the fertilizer accumulates toward the inner wall direction of the dispersion tank, the fertilizer at the lower end of the dispersion tank is turned up, so that the fertilizer toward the inner wall direction of the dispersion tank moves downward, so that the fertilizer inside the dispersion tank can be quickly turned over in all directions; S4, adding a sustained-release agent, opening the dust shield, putting the sustained-release agent in step S1 into the dispersion tank, and then closing the dust shield to mix, the sodium polyacrylate can absorb nutrients and control its release rate; S5, adding biologically active substances, opening the dust shield, putting the biologically active substances in step S1 into the dispersion tank, and then closing the dust shield to mix, and adding microbial agents to the mixture to improve the biological activity of the fertilizer and promote crop growth; S6. After the fertilizer is mixed, the discharge valve is opened, and the shaft of the driving motor is controlled to reverse, and the fertilizer in the dispersion tank is discharged from the dispersion tank through the longitudinal spiral blades; S7, granulating the fertilizer mixed in step S6 through a granulator to obtain a granular slow / controlled release fertilizer; S8. Drying and packaging: The prepared granular fertilizer is dried and then packaged.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The dispersing device provided by the present invention realizes efficient dispersing and mixing of fertilizers through the synergistic effect of the crushing and screening mechanism and the stirring and dispersing mechanism. The crushing and screening mechanism crushes and disperses the fertilizers, so that the fertilizer particles are evenly distributed in the dispersion tank, which is convenient for subsequent mixing. The longitudinal stirring and dispersing components and the transverse stirring and dispersing components in the stirring and dispersing mechanism work simultaneously, realizing the full-dimensional turning of the fertilizers in the vertical and horizontal directions, and the overall fluidity of the fertilizers is enhanced during mixing, which significantly improves the dispersing and mixing efficiency; at the same time, the dispersing device of the present invention is also equipped with auxiliary devices such as dust prevention and scraping to ensure the environmental friendliness of the mixing process and the easy maintenance of the equipment.

[0018] The high-efficiency slow / controlled-release fertilizer provided by the present invention has the following advantages: High-efficiency slow-release: Through the combination of specific slow-release agents and bioactive substances, the continuous release of nutrients is achieved to improve the utilization rate of fertilizers; Cost-effectiveness: Select low-cost raw materials and sustained-release materials to reduce production costs; Environmentally friendly: reduce nutrient loss and reduce environmental pollution; Promote crop growth: Provide various nutrients required for crop growth and promote healthy growth of crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the dispersion device of the present invention; Figure 2 It is a schematic diagram of the structure when the operating port of the dispersion device of the present invention is opened; Figure 3 It is one of the partial cross-sectional structural schematic diagrams of the dispersion device of the present invention; Figure 4 It is a partial structural schematic diagram of the dispersion device of the present invention; Figure 5 The second schematic diagram of the partial cross-sectional structure of the dispersion device of the present invention; Figure 6 It is a partial structural schematic diagram of the stirring and dispersing tube in the dispersing device of the present invention; Figure 7 for Figure 5 A schematic diagram of the enlarged structure of part A; Figure 8 for Figure 5 Schematic diagram of the enlarged structure of part B in FIG.

[0020] In the figure: 1, dispersion tank; 101, support leg; 102, discharge pipe; 103, discharge valve; 104, operation port; 105, door panel; 106, handle; 2. Cover plate; 201. Feeding port; 202. Feeding trough; 203. Dust shield; 3. Driving mechanism; 301. Driving motor; 302. Transmission rod; 3021. Active bevel gear; 303. First gear; 304. Second gear; 305. Rotating shaft; 306. First bearing; 307. Second bearing; 4. Control box; 5. Crushing and screening mechanism; 501. annular seat; 502. sieve plate; 503. dispersion rod; 504. annular sleeve; 6. Stirring and dispersing mechanism; 601. Stirring and dispersing tube; 6011. Annular limit plate; 6012. Ball; 6013. Internal gear ring; 602. Longitudinal spiral blade; 603. Horizontal stirring rod; 6031. Driven bevel gear; 604. Horizontal spiral blade; 605. Mounting seat; 6051. Annular baffle; 606. Flange; 607. Third bearing; 7. Scraping mechanism; 701. Connecting rod; 702. Scraper. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical 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 relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1, please refer to Figures 1 to 8 , this embodiment provides the following technical solutions: A dispersion device comprises a dispersion tank 1, a driving mechanism 3, a control box 4, a crushing and screening mechanism 5, a stirring and dispersing mechanism 6 and a cleaning and scraping component 7.

[0026] Among them, the top of the dispersion tank 1 is set as an opening, and a cover plate 2 is fixedly installed on the top of the dispersion tank 1. A feeding port 201 is opened on the top of the cover plate 2, and a feeding trough 202 is fixedly installed on the feeding port 201. A dust shield 203 is hinged on the top of the feeding trough 202. The dust shield 203 can be used to block the dust generated when the fertilizer is stirred. A support leg 101 for supporting the dispersion tank 1 is fixedly installed at the lower end of the dispersion tank 1. A discharge pipe 102 is connected to the bottom of the dispersion tank 1, and a discharge valve 103 is installed on the discharge pipe 102. The control box 4 is installed on the dispersion tank 1, and the driving mechanism 3 is controlled by the controller inside the control box 4.

[0027] In this embodiment, the driving mechanism 3 is installed on the cover plate 2, and the driving mechanism 3 is used to drive the crushing and screening mechanism 5 and the stirring and dispersing mechanism 6 to operate. The stirring and dispersing mechanism 6 is arranged at the lower end of the inner part of the dispersion tank 1, and the stirring and dispersing mechanism 6 is used to stir and disperse the screened fertilizer; Specifically, the driving mechanism 3 includes a driving motor 301 and a transmission rod 302. The driving motor 301 is fixedly mounted on the top of the cover plate 2 through a motor seat, and the transmission rod 302 is rotatably mounted inside the dispersion tank 1. The upper end of the transmission rod 302 rotates through the cover plate 2 through a second bearing 307 and is fixedly connected to the rotating shaft of the driving motor 301. The driving motor 301 is controlled by a controller. In this embodiment, the controller can adopt a PLC controller of the s7-200 series. The stirring and dispersing mechanism 6 includes a stirring and dispersing tube 601, the upper end of which is rotatably mounted on the bottom of the cover plate 2 through a mounting member. In this embodiment, a flange 606 is fixedly welded to the top of the mounting seat 605, and the flange 606 is fixed to the bottom of the cover plate 2 through bolts. The upper end of the stirring and dispersing tube 601 is rotatably mounted inside the mounting seat 605 through a third bearing 607. In order to further improve the stability of the stirring and dispersing tube 601 during rotation, an annular limiting plate 6011 is fixedly welded to the top of the stirring and dispersing tube 601, and an annular The baffle 6051 and the annular limit plate 6011 are provided with a ball seat at the bottom, and a ball 6012 is rolledly installed in the ball seat. The ball 6012 is in rolling contact with the top of the annular baffle 6051. The lower end of the stirring and dispersing tube 601 extends into the interior of the dispersion tank 1. The lower end of the stirring and dispersing tube 601 is provided with a longitudinal stirring and dispersing component. The longitudinal stirring and dispersing component is used to turn over the fertilizer located at the lower end of the dispersion tank 1 from bottom to top. In this embodiment, the longitudinal stirring and dispersing component includes a longitudinal spiral blade 602, and the longitudinal spiral blade 602 is fixedly welded to the outer wall of the lower end of the stirring and dispersing tube 601.

[0028] A transverse stirring and dispersing component is arranged above the longitudinal stirring and dispersing component on the stirring and dispersing tube 601. A plurality of transverse stirring and dispersing components are arranged. The transverse stirring and dispersing components are used to push the fertilizer located at the center of the dispersion tank 1 toward the inner wall of the dispersion tank 1. In the present embodiment, the transverse stirring and dispersing component includes a transverse stirring rod 603. One end of the transverse stirring rod 603 rotates and extends into the interior of the stirring and dispersing tube 601. The end of the transverse stirring rod 603 away from the stirring and dispersing tube 601 is fixedly connected with a transverse spiral blade 604.

[0029] The transmission rod 302 drives the stirring and dispersing tube 601 to rotate through the first transmission component; in this embodiment, the first transmission component includes an inner gear ring 6013, a first gear 303, a second gear 304 and a rotating shaft 305, the inner gear ring 6013 is fixedly connected to the inner wall of the upper end of the stirring and dispersing tube 601, the lower end of the transmission rod 302 rotates and extends into the interior of the stirring and dispersing tube 601, the first gear 303 is fixedly sleeved on the upper end of the transmission rod 302, the second gear 304 is arranged in the interior of the stirring and dispersing tube 601, the first gear 303 is meshed with the second gear 304, the second gear 304 is meshed with the inner gear ring 6013, and the lower end of the rotating shaft 305 is meshed with the second gear 304. The end is fixedly connected to the second gear 304, the upper end of the rotating shaft 305 is rotatably connected to the lower end of the cover plate 2 through the first bearing 306, and when the transmission rod 302 rotates, it can drive the stirring and dispersing tube 601 to rotate, and the stirring and dispersing tube 601 can rotate relative to the transmission rod 302. When in use, the rotation of the rotating shaft of the driving motor 301 is controlled to drive the transmission rod 302 to rotate, and the rotating transmission rod 302 drives the second gear 304 to rotate through the first gear 303, and the rotating second gear 304 drives the stirring and dispersing tube 601 to rotate through the inner gear ring 6013, and at this time, the stirring and dispersing tube 601 also rotates relative to the transmission rod 302.

[0030] The transmission rod 302 drives the lateral stirring and dispersing assembly to rotate through the second transmission assembly; in this embodiment, the second transmission assembly includes an active bevel gear 3021 and a driven bevel gear 6031, the driven bevel gear 6031 is fixedly connected to one end of the lateral stirring rod 603 close to the stirring and dispersing tube 601, the active bevel gear 3021 is fixedly sleeved on the transmission rod 302, and the driven bevel gear 6031 is meshed with the active bevel gear 3021. When the transmission rod 302 rotates, the rotating transmission rod 302 drives the lateral stirring rod 603 to rotate through the active bevel gear 3021 and the driven bevel gear 6031. The transverse stirring rod 603 can drive the transverse spiral blade 604 to rotate, so that the rotating transverse spiral blade 604 pushes the fertilizer close to the transmission rod 302 toward the inner wall of the dispersion tank 1. At the same time, the stirring and dispersing tube 601 also drives the transverse stirring rod 603 to rotate with the axial direction of the stirring and dispersing tube 601 as the center, so that the fertilizer inside the dispersion tank 1 can be flipped 360°, and then cooperated with the longitudinal spiral blade 602 to flip the fertilizer at the lower end of the dispersion tank 1, so that the fertilizer toward the inner wall of the dispersion tank 1 moves downward, so that the fertilizer inside the dispersion tank 1 can be quickly flipped in all directions.

[0031] In this embodiment, the crushing and screening mechanism 5 includes an annular seat 501, a sieve plate 502 and an annular sleeve 504. The annular seat 501 is fixed at the bottom of the sieve plate 502, and the annular seat 501 is fixedly connected to the upper end of the inner wall of the dispersion tank 1. The stirring and dispersing tube 601 is rotated and penetrates the sieve plate 502. The annular sleeve 504 is fixedly sleeved on the upper end of the stirring and dispersing tube 601. The outer wall of the annular sleeve 504 is fixedly connected with a plurality of dispersion rods 503. The bottom of the dispersion rod 503 is fixedly connected with bristles, and the lower end of the bristles is in contact with the upper surface of the sieve plate 502. The sieve plate 502 cooperates with the dispersion rod 503 to disperse the fertilizer falling on the sieve plate 502, and the sieve holes of the sieve plate 502 can be cleaned by the bristles to avoid clogging of the sieve holes.

[0032] In this embodiment, a scraping assembly 7 is installed on the outer wall of the stirring and dispersing tube 601, and the scraping assembly 7 includes a connecting rod 701. One end of the connecting rod 701 is fixedly connected to the outer wall of the stirring and dispersing tube 601, and the other end of the connecting rod 701 is fixedly connected to a scraper 702. The scraper 702 is in contact with the inner wall of the dispersion tank 1. The scraper 702 is set to clean the inner wall of the dispersion tank 1 to prevent the fertilizer from sticking to the inner wall of the dispersion tank 1.

[0033] In this embodiment, an operation port 104 is provided at the upper end of the outer wall of the dispersion tank 1, a door panel 105 is installed on the operation port 104, and a handle 106 is fixedly connected to the door panel 105. The large particles of impurities and some fertilizers that cannot be dispersed on the sieve plate 502 can be cleaned through the provided operation port 104.

[0034] Example 2: This example differs from Example 1 in that it provides an application of a dispersing device in the preparation of a high-efficiency slow / controlled-release fertilizer, which specifically includes the following steps: S1. Raw material preparation. High-efficiency slow / controlled-release fertilizers are composed of nitrogen source, phosphorus source, potassium source, organic matter, slow-release agent and biologically active substances. By weight percentage, the nitrogen source is 20%-50% urea, the phosphorus source is 10%-40% diammonium phosphate, the potassium source is 10%-40% potassium sulfate, the organic matter is 0.5%-5% humic acid, the slow-release agent is 0.5%-5% sodium polyacrylate, and the biologically active substance is 0.05%-0.1% microbial agent; S2, mixing, opening the dust shield 203, feeding the urea, diammonium hydrogen phosphate, potassium sulfate and humic acid in step S1 into the dispersion tank 1 through the feeding port 201, and then closing the dust shield 203; S3, start the driving motor 301, at this time, the driving motor 301 drives the transmission rod 302 to rotate, the rotating transmission rod 302 drives the second gear 304 to rotate through the first gear 303, and the rotating second gear 304 drives the stirring and dispersing tube 601 to rotate through the inner gear ring 6013. At this time, the stirring and dispersing tube 601 also rotates relative to the driving rod 302, and the rotating stirring and dispersing tube 601 drives the annular sleeve 504 to rotate, so that the dispersing rod 503 on the annular sleeve 504 stirs and disperses the fertilizer particles falling on the sieve plate 502, and the dispersed fertilizer particles fall to the lower end of the inner part of the dispersion tank 1, and the rotating longitudinal spiral blades 60 2. The fertilizers dropped to the lower end of the dispersion tank 1 are turned over from bottom to top. The rotating transmission rod 302 drives the transverse stirring rod 603 to rotate through the active bevel gear 3021 and the driven bevel gear 6031. At the same time, the stirring and dispersing tube 601 drives the transverse stirring rod 603 to rotate, so that the rotating transverse spiral blade 604 pushes the fertilizers close to the transmission rod 302 toward the inner wall of the dispersion tank 1. As the fertilizers accumulate toward the inner wall of the dispersion tank 1, the fertilizers at the lower end of the dispersion tank 1 are turned over, so that the fertilizers toward the inner wall of the dispersion tank 1 move downward, so that the fertilizers inside the dispersion tank 1 can be quickly turned over in all directions. S4, adding a sustained-release agent, opening the dust shield 203, putting the sustained-release agent in step S1 into the dispersion tank 1, and then closing the dust shield 203 to mix, the sodium polyacrylate can absorb nutrients and control its release rate; S5, adding biologically active substances, opening the dust shield 203, putting the biologically active substances in step S1 into the dispersion tank 1, and then closing the dust shield 203, mixing, and adding the microbial agent to the mixture to improve the biological activity of the fertilizer and promote crop growth; S6, after the fertilizer is mixed, the discharge valve 103 is opened, the shaft of the driving motor 301 is controlled to reverse, and the fertilizer in the dispersion tank 1 is discharged from the dispersion tank 1 through the longitudinal spiral blade 602; S7, granulating the fertilizer mixed in step S6 through a granulator to obtain a granular slow / controlled release fertilizer; S8. Drying and packaging: The prepared granular fertilizer is dried and then packaged.

[0035] Example 3: This example differs from Example 2 in that it provides an application of a dispersing device in the preparation of high-efficiency slow / controlled-release urea, which specifically includes the following steps: S1. Raw material preparation. High-efficiency slow / controlled-release urea is composed of nitrogen source, organic matter, slow-release agent and biologically active substance. By weight percentage, the nitrogen source is 90%-98% urea, the organic matter is 0.5%-5% humic acid, the slow-release agent is 0.5%-5% sodium polyacrylate, and the biologically active substance is 0.05%-0.1% microbial agent; S2, mixing, opening the dust shield 203, feeding the urea and humic acid in step S1 into the dispersion tank 1 through the feeding port 201, and then closing the dust shield 203; S3, start the driving motor 301, at this time, the driving motor 301 drives the transmission rod 302 to rotate, the rotating transmission rod 302 drives the second gear 304 to rotate through the first gear 303, and the rotating second gear 304 drives the stirring and dispersing tube 601 to rotate through the inner gear ring 6013. At this time, the stirring and dispersing tube 601 also rotates relative to the driving rod 302, and the rotating stirring and dispersing tube 601 drives the annular sleeve 504 to rotate, so that the dispersing rod 503 on the annular sleeve 504 stirs and disperses the fertilizer particles falling on the sieve plate 502, and the dispersed fertilizer particles fall to the lower end of the inner part of the dispersion tank 1, and the rotating longitudinal spiral blades 60 2. The fertilizers dropped to the lower end of the dispersion tank 1 are turned over from bottom to top. The rotating transmission rod 302 drives the transverse stirring rod 603 to rotate through the active bevel gear 3021 and the driven bevel gear 6031. At the same time, the stirring and dispersing tube 601 drives the transverse stirring rod 603 to rotate, so that the rotating transverse spiral blade 604 pushes the fertilizers close to the transmission rod 302 toward the inner wall of the dispersion tank 1. As the fertilizers accumulate toward the inner wall of the dispersion tank 1, the fertilizers at the lower end of the dispersion tank 1 are turned over, so that the fertilizers toward the inner wall of the dispersion tank 1 move downward, so that the fertilizers inside the dispersion tank 1 can be quickly turned over in all directions. S4, adding a sustained-release agent, opening the dust shield 203, putting the sustained-release agent in step S1 into the dispersion tank 1, and then closing the dust shield 203 to mix, the sodium polyacrylate can absorb nutrients and control its release rate; S5, adding biologically active substances, opening the dust shield 203, putting the biologically active substances in step S1 into the dispersion tank 1, and then closing the dust shield 203, mixing, and adding the microbial agent to the mixture to improve the biological activity of the fertilizer and promote crop growth; S6, after the fertilizer is mixed, the discharge valve 103 is opened, the shaft of the driving motor 301 is controlled to reverse, and the fertilizer in the dispersion tank 1 is discharged from the dispersion tank 1 through the longitudinal spiral blade 602; S7, granulating the fertilizer mixed in step S6 through a granulator to obtain a granular slow / controlled release fertilizer; S8. Drying and packaging: The prepared granular fertilizer is dried and then packaged.

[0036] In summary: The novel dispersing device proposed in the present invention realizes efficient and uniform mixing of fertilizer particles by combining the synergistic effects of a screening mechanism, a crushing mechanism, a stirring and dispersing mechanism, and a cleaning and scraping component. The dispersing device of the present invention can not only effectively crush and scatter fertilizer particles, but also realize all-round turning of fertilizer in the mixing tank through a multi-directional stirring and dispersing component, which significantly improves the mixing efficiency and mixing uniformity. At the same time, the dispersing device of the present invention is also equipped with auxiliary devices such as dust prevention and cleaning and scraping to ensure the environmental friendliness of the mixing process and the easy maintainability of the equipment.

[0037] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dispersing device, characterized in that: include: A dispersion tank (1), wherein the top of the dispersion tank (1) is open, a cover plate (2) is fixedly mounted on the top of the dispersion tank (1), a feeding port (201) is provided on the top of the cover plate (2), a feeding trough (202) is fixedly mounted on the feeding port (201), a dust shield (203) is hingedly connected to the top of the feeding trough (202), a support leg (101) for supporting the dispersion tank (1) is fixedly mounted on the lower end of the dispersion tank (1), a discharge pipe (102) is connected to the bottom of the dispersion tank (1), and a discharge valve (103) is mounted on the discharge pipe (102); A crushing and screening mechanism (5), the crushing and screening mechanism (5) being arranged at the upper end of the dispersion tank (1) and used for crushing, dispersing and screening the fertilizer put into the dispersion tank (1), so that the fertilizer particles smaller than the sieve holes fall into the lower end of the dispersion tank (1); A stirring and dispersing mechanism (6), the stirring and dispersing mechanism (6) being arranged at the lower end of the dispersion tank (1), the stirring and dispersing mechanism (6) being used to stir and disperse the fertilizer after screening; A driving mechanism (3), the driving mechanism (3) being mounted on the cover plate (2), the driving mechanism (3) being used to drive the crushing and screening mechanism (5) and the stirring and dispersing mechanism (6) to operate; A control box (4), wherein the control box (4) is mounted on the dispersion tank (1), and the drive mechanism (3) is controlled by a controller inside the control box (4).

2. A dispersing device according to claim 1, characterized in that: The driving mechanism (3) comprises a driving motor (301) and a transmission rod (302); the driving motor (301) is fixedly mounted on the top of the cover plate (2) via a motor seat; the transmission rod (302) is rotatably mounted inside the dispersion tank (1); the upper end of the transmission rod (302) is rotatably passed through the cover plate (2) via a second bearing (307) and is fixedly connected to the rotating shaft of the driving motor (301); The stirring and dispersing mechanism (6) comprises a stirring and dispersing tube (601), the upper end of the stirring and dispersing tube (601) being rotatably mounted on the bottom of the cover plate (2) via a mounting member, the lower end of the stirring and dispersing tube (601) extending into the interior of the dispersion tank (1), the lower end of the stirring and dispersing tube (601) being provided with a longitudinal stirring and dispersing component, the longitudinal stirring and dispersing component being used to turn over the fertilizer located at the lower end of the dispersion tank (1) from bottom to top; A transverse stirring and dispersing assembly is arranged on the stirring and dispersing pipe (601) above the longitudinal stirring and dispersing assembly, and a plurality of transverse stirring and dispersing assemblies are arranged. The transverse stirring and dispersing assemblies are used to push the fertilizer located at the center of the dispersion tank (1) toward the inner wall of the dispersion tank (1); The transmission rod (302) drives the stirring and dispersing tube (601) to rotate via a first transmission assembly; The transmission rod (302) drives the lateral stirring and dispersing component to rotate via a second transmission component.

3. A dispersing device according to claim 2, characterized in that: The first transmission assembly comprises an inner gear ring (6013), a first gear (303), a second gear (304) and a rotating shaft (305); the inner gear ring (6013) is fixedly connected to the inner wall of the upper end of the stirring and dispersing tube (601); the lower end of the transmission rod (302) rotates and extends into the interior of the stirring and dispersing tube (601); the first gear (303) is fixedly sleeved on the upper end of the transmission rod (302); the second gear (304) is arranged in the interior of the stirring and dispersing tube (601); and the first gear ring (6013) is fixedly connected to the inner wall of the upper end of the stirring and dispersing tube (601); The wheel (303) is meshed with the second gear (304), the second gear (304) is meshed with the inner gear ring (6013), the lower end of the rotating shaft (305) is fixedly connected to the second gear (304), the upper end of the rotating shaft (305) is rotatably connected to the lower end of the cover plate (2) via a first bearing (306), and when the transmission rod (302) rotates, it can drive the stirring and dispersing tube (601) to rotate, and the stirring and dispersing tube (601) can rotate relative to the transmission rod (302).

4. A dispersing device according to claim 3, characterized in that: The longitudinal stirring and dispersing component comprises a longitudinal spiral blade (602), and the longitudinal spiral blade (602) is fixedly welded to the outer wall of the lower end of the stirring and dispersing tube (601); The transverse stirring and dispersing assembly comprises a transverse stirring rod (603), one end of the transverse stirring rod (603) rotates and extends into the interior of the stirring and dispersing tube (601), and one end of the transverse stirring rod (603) away from the stirring and dispersing tube (601) is fixedly connected to a transverse spiral blade (604); The second transmission assembly comprises a driving bevel gear (3021) and a driven bevel gear (6031); the driven bevel gear (6031) is fixedly connected to one end of the transverse stirring rod (603) close to the stirring and dispersing tube (601); the driving bevel gear (3021) is fixedly sleeved on the transmission rod (302); and the driven bevel gear (6031) is meshed with the driving bevel gear (3021).

5. A dispersing device according to claim 4, characterized in that: The crushing and screening mechanism (5) comprises an annular seat (501), a sieve plate (502) and an annular sleeve (504); the annular seat (501) is fixed to the bottom of the sieve plate (502); the annular seat (501) is fixedly connected to the upper end of the inner wall of the dispersion tank (1); the stirring and dispersing tube (601) is rotatably arranged to penetrate the sieve plate (502); the annular sleeve (504) is fixedly sleeved on the upper end of the stirring and dispersing tube (601); a plurality of dispersing rods (503) are fixedly connected to the outer wall of the annular sleeve (504); bristles are fixedly connected to the bottom of the dispersing rods (503); and the lower ends of the bristles are in contact with the upper surface of the sieve plate (502).

6. A dispersing device according to claim 5, characterized in that: The mounting member comprises a mounting seat (605), a flange (606) is fixedly welded to the top of the mounting seat (605), the flange (606) is fixed to the bottom of the cover plate (2) by bolts, and the upper end of the stirring and dispersing tube (601) is rotatably mounted inside the mounting seat (605) by a third bearing (607).

7. A dispersing device according to claim 6, characterized in that: An annular limiting plate (6011) is fixedly welded to the top of the stirring and dispersing tube (601), an annular baffle (6051) is fixedly connected to the inner wall of the mounting seat (605), a ball seat is provided at the bottom of the annular limiting plate (6011), a ball (6012) is rotatably mounted in the ball seat, and the ball (6012) is in rolling contact with the top of the annular baffle (6051).

8. A dispersing device according to claim 7, characterized in that: A cleaning and scraping assembly (7) is installed on the outer wall of the stirring and dispersing tube (601), and the cleaning and scraping assembly (7) comprises a connecting rod (701), one end of the connecting rod (701) is fixedly connected to the outer wall of the stirring and dispersing tube (601), and the other end of the connecting rod (701) is fixedly connected to a scraper (702), and the scraper (702) is in contact with the inner wall of the dispersion tank (1).

9. A dispersing device according to claim 8, characterized in that: An operation opening (104) is provided at the upper end of the outer wall of the dispersion tank (1), a door panel (105) is mounted on the operation opening (104), and a handle (106) is fixedly connected to the door panel (105).

10. Use of the dispersion device according to claim 9 in the preparation of high-efficiency slow / controlled release fertilizers, characterized in that: The specific steps include: S1. Raw material preparation. High-efficiency slow / controlled-release fertilizers are composed of nitrogen source, phosphorus source, potassium source, organic matter, slow-release agent and biologically active substances. By weight percentage, the nitrogen source is 20%-50% urea, the phosphorus source is 10%-40% diammonium phosphate, the potassium source is 10%-40% potassium sulfate, the organic matter is 0.5%-5% humic acid, the slow-release agent is 0.5%-5% sodium polyacrylate, and the biologically active substance is 0.05%-0.1% microbial agent; S2, mixing, opening the dust shield (203), feeding the urea, diammonium hydrogen phosphate, potassium sulfate, and humic acid in step S1 into the dispersion tank (1) through the feeding port (201), and then closing the dust shield (203); S3, starting the driving motor (301), at which time the driving motor (301) drives the transmission rod (302) to rotate, the rotating transmission rod (302) drives the second gear (304) to rotate via the first gear (303), the rotating second gear (304) drives the stirring and dispersing tube (601) to rotate via the inner gear ring (6013), at which time the stirring and dispersing tube (601) also rotates relative to the driving rod (302), the rotating stirring and dispersing tube (601) drives the annular sleeve (504) to rotate, and the dispersing rod (503) on the annular sleeve (504) stirs and disperses the fertilizer particles that fall onto the sieve plate (502), the dispersed fertilizer particles fall to the lower end of the dispersion tank (1), and the rotating longitudinal spiral blades (602) The fertilizer that has fallen to the lower end of the dispersion tank (1) is turned over from bottom to top. The rotating transmission rod (302) drives the transverse stirring rod (603) to rotate through the active bevel gear (3021) and the driven bevel gear (6031). At the same time, the stirring and dispersing tube (601) drives the transverse stirring rod (603) to rotate, thereby causing the rotating transverse spiral blade (604) to push the fertilizer close to the transmission rod (302) toward the inner wall of the dispersion tank (1). As the fertilizer accumulates toward the inner wall of the dispersion tank (1), the fertilizer at the lower end of the dispersion tank (1) is turned over, thereby causing the fertilizer toward the inner wall of the dispersion tank (1) to move downward, so that the fertilizer inside the dispersion tank (1) can be quickly turned over in all directions; S4, adding a sustained-release agent, opening the dust shield (203), adding the sustained-release agent in step S1 into the dispersion tank (1), and then closing the dust shield (203) to mix, so that the sodium polyacrylate can absorb nutrients and control their release rate; S5, adding biologically active substances, opening the dust shield (203), putting the biologically active substances in step S1 into the dispersion tank (1), and then closing the dust shield (203) to mix, and adding the microbial agent to the mixture to improve the biological activity of the fertilizer and promote crop growth; S6, after the fertilizers are mixed, the discharge valve (103) is opened, and the shaft of the driving motor (301) is controlled to rotate in reverse, so that the fertilizers in the dispersion tank (1) are discharged from the dispersion tank (1) through the longitudinal spiral blades (602); S7, granulating the fertilizer mixed in step S6 through a granulator to obtain a granular slow / controlled release fertilizer; S8. Drying and packaging: The prepared granular fertilizer is dried and then packaged.

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