Low-loss and high-efficiency mixing device for sustained and controlled release bulk blending fertilizer and organic and inorganic compound fertilizer

By dynamically adjusting the switching and stirring mechanisms, and combining centrifugal force and fan separation technology, the problems of single function and difficulty in powder separation in traditional mixing devices have been solved, achieving efficient mixing and automatic separation, and improving production efficiency and product quality.

CN121623628APending Publication Date: 2026-03-10SHANDONG AGRICULTURAL UNIVERSITY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional mixing devices have limited functionality, are cumbersome to adjust, and the coating is easily damaged during the mixing process, making it difficult to separate the powder, which affects product quality and production efficiency.

Method used

A switching mechanism is used to flexibly switch the motor's operating effect, a stirring mechanism dynamically adjusts the tilt angle, and a separation mechanism achieves automatic powder separation through centrifugal force and fan exhaust.

Benefits of technology

This improves the ease of use and efficiency of the device, reduces maintenance costs, ensures stable controlled-release performance of the coated fertilizer, and guarantees product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121623628A_ABST
    Figure CN121623628A_ABST
Patent Text Reader

Abstract

The invention discloses a low-loss and high-efficiency mixing device for a sustained and controlled release blended fertilizer and an organic-inorganic compound fertilizer, and belongs to the technical field of mixing devices.The low-loss and high-efficiency mixing device comprises a mixing tank, a pressure-resistant cover and a switching mechanism are connected to the top of the mixing tank, the switching mechanism comprises a protective shell arranged in the mixing tank, and a mounting plate is connected to the inner wall of the protective shell; a second motor is mounted on one side of the mounting plate, a driving gear is arranged on one side of the second motor, a sliding shaft and a stirring mechanism are rotationally connected to one side of the driving gear, the stirring mechanism comprises a turning plate arranged on one side of the protective shell, and the outer wall of the turning plate is arranged to be a continuous cambered surface; the separating mechanism comprises a rotating frame rotationally connected with the bottom of the inner wall of the mixing tank, and the top of the rotating frame is connected with the bottom of the protective shell. The switching mechanism is used for rapidly switching the operation effect of the second motor, the working efficiency is improved, the turning-stirring mechanism is used for controlling the turning-stirring strength and reducing the coating loss, and the separating mechanism is used for automatically separating powder and fertilizer; the product quality is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mixing devices, and particularly relates to a low-loss and high-efficiency mixing device for slow-release and controlled-release mixed fertilizer and organic-inorganic compound fertilizer. BACKGROUND

[0002] As the core production material for ensuring crop yield in agricultural production, chemical fertilizer occupies a key position in the global food security system. According to industry practice data, slow-release and controlled-release fertilizer can increase fertilizer utilization rate by about 10%-30% through film coating technology to regulate nutrient release rate. Slow-release and controlled-release mixed fertilizer, by scientifically mixing coated slow-release and controlled-release fertilizer with phosphorus fertilizer and potassium fertilizer particles, can not only achieve balanced nutrient supply, but also take into account quick-acting and long-acting fertility, further promoting crop yield increase and agricultural green development. For example, mixing coated slow-release urea with diammonium phosphate and potassium sulfate in proportion is more conducive to meeting the nutrient demand of transplanted rice in the whole growth period, and compared with single fertilizer application, can increase grain yield by 29.56%-37.96%. When mixed with organic fertilizer particles, it can also improve soil physical and chemical properties and reduce non-point source pollution.

[0003] In the production process of slow-release and controlled-release mixed fertilizer and organic-inorganic compound fertilizer, mixing is a key process to ensure product quality. The driving mechanism of the traditional mixing device is fixed in function and cannot quickly adapt to different mixing process requirements. When it is necessary to switch between overall turning and turning angle adjustment, it is often necessary to stop and replace special transmission parts, which is complicated in operation process, time-consuming and laborious, resulting in low work efficiency and increasing the maintenance complexity and spare part cost of the equipment. Secondly, the turning parts of the traditional mixing device are fixed in structure and rigid in action, and when mixing high-hardness phosphorus and potassium fertilizer and coated slow-release and controlled-release fertilizer, the violent collision and friction can easily cause the film to be damaged, affecting the controlled-release performance, causing nutrient release to be out of control, weakening the fertilizer effect, resulting in product scrap and rising production cost. Meanwhile, the broken powder generated in the production process is easily mixed in the finished product and blocks the gaps of intact coated fertilizer. The traditional mixing device lacks automatic powder separation means, and these powders can affect the normal nutrient release of coated fertilizer and reduce product quality. SUMMARY

[0004] The purpose of the present application is to solve the problems of single function mode adjustment, complicated adjustment, rough turning process, high damage rate and difficult effective separation of powder of the traditional mixing device, and to provide a low-loss and high-efficiency mixing device for slow-release and controlled-release mixed fertilizer and organic-inorganic compound fertilizer.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: The utility model provides a mixing tank, the mixing tank top is connected with the anti -pressure lid, switching mechanism, switching mechanism includes the protection shell that sets up in the mixing tank inside, the protection shell inner wall is connected with the mounting plate, the mounting plate one side is installed with second motor, second motor one side is provided with drive gear, drive gear one side rotatory connection has the sliding axle, second motor output and sliding axle one end are connected, sliding axle outer wall sliding connection has the sliding ring, sliding ring both ends are connected with the limit block, the limit block is configured to follow the sliding ring and moves along the sliding axle axle body direction, through the limit block embeds different position switching second motor operation produces the work effect, the turnover mechanism, the turnover mechanism includes a plurality of turnover plates that sets up in the protection shell side, the outer wall of turnover plate is provided as continuous cambered surface, a plurality of the turnover plate of same side is configured as the synchronous change of inclination angle, when switching mechanism switches for angle control mode, controls the inclination of turnover plate and adjusts the turnover intensity, separation mechanism, separation mechanism includes the rotary frame that is rotatory with the mixing tank inner wall bottom, the rotary frame top and the protection shell bottom are connected, the protection shell top is connected with the filter tube, through the rotary frame drives two turnover mechanisms whole body and rotates along the rotary frame axis, will break the powder and the fertilizer separation, prevents break the powder and blocks the coating gap.

[0006] As a further description of the above technical solutions: The switching mechanism further includes a fixed ring connected to the outer wall of the mounting plate on one side, a driven gear is arranged between the fixed ring and the drive gear, a connecting column is connected to one side of the driven gear, a connecting plate is connected to one end of the connecting column, a connecting pipe is rotatably connected to the outer wall of the connecting plate on one side, and a second bevel gear is connected to one end of the connecting pipe.

[0007] As a further description of the above technical solutions: A rotating seat is connected to the side wall of the connecting pipe, a first bevel gear is rotatably connected to the outer wall of the rotating seat on one side, two limiting grooves are formed in the outer wall of the sliding ring, and the sliding ring is slidably connected to the limiting grooves through a column.

[0008] As a further description of the above technical solutions: A moving rod is connected to the outer wall of the sliding ring, a rotating frame is slidably connected to one end of the moving rod, a mounting seat is arranged on the outer wall of the mounting plate on one side, the rotating frame is rotatably connected to the mounting seat through a column at one end, a first motor is mounted on the outer wall of the mounting seat on one side, and the output end of the first motor is connected to one end of the column of the rotating frame.

[0009] As a further description of the above technical solutions: The turnover mechanism further includes a rotating rod connected to the first bevel gear through a column at the middle, telescopic rods are rotatably connected to both ends of the rotating rod, a turntable is rotatably connected to the top end of the protection shell, and the telescopic rods are inserted into the outer wall of the turntable at one end.

[0010] As a further description of the above technical solution: Multiple limiting brackets are connected to one side of the outer wall of the turntable. Two adjacent limiting brackets are symmetrically arranged on both sides of the telescopic rod. The outer wall of the telescopic rod is provided with a travel groove. A rotating block is rotatably connected between the top frames of the limiting brackets. One side of the outer wall of the rotating block is connected to the outer wall of the flap at a corresponding position. As a further description of the above technical solution: The limiting frame sidewalls are rotatably connected to a first connecting frame, a second connecting frame, and a third connecting frame at corresponding positions. A first linkage frame is rotatably connected to the middle sidewall of the first connecting frame. One end of the first linkage frame is rotatably connected to the corresponding sidewall of the second connecting frame. A second linkage frame is rotatably connected to one end sidewall of the first connecting frame. The sidewalls of the second linkage frame are rotatably connected to the corresponding sidewalls of the second and third connecting frames. A third linkage frame is rotatably connected to one end sidewall of the second connecting frame. The middle sidewall of the third linkage frame is rotatably connected to one end sidewall of the third connecting frame. One end sidewall of the third linkage frame is connected to the sidewall of the rotating block.

[0011] As a further description of the above technical solution: The separation mechanism also includes a feed pipe connected to the top of the pressure-resistant cover. The feed pipe is a three-way pipe, and the two ends of the bottom of the feed pipe are respectively connected to the filter pipes at corresponding positions.

[0012] As a further description of the above technical solution: The outer wall of the filter tube is provided with multiple filter holes around the axis. The bottom of the rotating frame is connected to a rotating shaft. The bottom of the mixing tank is equipped with a third motor, which is connected to the bottom of the rotating shaft through its output end.

[0013] As a further description of the above technical solution: The mixing tank is connected to a perforated plate at the top, the pressure-resistant cover is equipped with multiple fans at the top, and the mixing tank is connected to a support frame at the bottom.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, by setting a switching mechanism, the device can freely switch the operating effect of the second motor without replacing parts. The second motor can drive the entire stirring mechanism to rotate, or the operating effect of the second motor can be quickly switched to adjust the stirring angle of the stirring mechanism. This improves the ease of use and working efficiency of the device, reduces the number of special parts required, and lowers maintenance costs.

[0015] In this invention, by setting a turning mechanism, the tilting plate can be dynamically adjusted to change the turning intensity. The continuous arc surface of the tilting plate makes the rolling trajectory of the fertilizer smooth and gentle during the turning and mixing process, reducing the collision between the coated slow-release fertilizer and the high-hardness phosphorus and potassium fertilizer, reducing the coating breakage rate, ensuring the stable controlled-release performance of the coated fertilizer, and reducing the production cost.

[0016] In this invention, the separation mechanism uses a filter plate with a pore size smaller than that of the mixed fertilizer particles but larger than that of the crushed powder particles. When the separation mechanism drives the mixing mechanism to rotate, centrifugal force throws the material outward. The mixed fertilizer is intercepted by the filter plate, while the crushed powder is thrown out and enters the mixing tank. The pressure cover uses a fan to create local low pressure, causing the broken powder to automatically enter the pressure cover. This achieves automatic separation of the crushed powder and the mixed fertilizer, preventing the crushed powder from clogging the pores of the coating and affecting nutrient release, thus ensuring product effectiveness and quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 2 This is a schematic diagram showing the disassembled structure of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 3 This is a partial half-section diagram of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 4 This is a partial cross-sectional schematic diagram of the separation mechanism of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 5 This is a partial cross-sectional schematic diagram of the turning and switching mechanisms of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 6 This is a schematic diagram of the structure of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention. Figure 7 For the present invention Figure 6 A magnified structural diagram of part A in the middle; Figure 8 This is a partial cross-sectional view of the mixing mechanism of a low-loss and high-efficiency mixing device for controlled-release blended fertilizers and organic-inorganic compound fertilizers proposed in this invention.

[0018] Legend: 1. Mixing tank; 2. Orifice plate; 3. Pressure cover; 4. Fan; 5. Switching mechanism; 501. Protective shell; 502. Mounting plate; 503. Fixing ring; 504. Drive gear; 505. Driven gear; 506. Connecting column; 507. Connecting plate; 508. Connecting pipe; 509. Rotating seat; 510. First bevel gear; 511. Second bevel gear; 512. Sliding shaft; 513. Limiting groove; 514. Sliding ring; 515. Limiting block; 516. Moving rod; 517. Rotating frame; 518. Mounting seat; 519. First motor 520. Second motor; 6. Tumbling mechanism; 601. Rotating rod; 602. Telescopic rod; 603. Turntable; 604. Limiting frame; 605. Stroke groove; 606. First connecting frame; 607. Second connecting frame; 608. Third connecting frame; 609. First linkage frame; 610. Second linkage frame; 611. Third linkage frame; 612. Rotating block; 613. Flip plate; 7. Separation mechanism; 701. Rotating frame; 702. Feed pipe; 703. Filter pipe; 704. Filter hole; 705. Rotating shaft; 706. Third motor; 8. Support frame. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-2 , Figures 5-6 and Figure 8This invention provides a technical solution comprising a mixing tank 1, a pressure-resistant cover 3 connected to the top of the mixing tank 1, and a switching mechanism 5. The switching mechanism 5 includes a protective shell 501 disposed inside the mixing tank 1, an mounting plate 502 connected to the inner wall of the protective shell 501, a second motor 520 mounted on one side of the mounting plate 502, a drive gear 504 disposed on one side of the second motor 520, a sliding shaft 512 rotatably connected to one side of the drive gear 504, the output end of the second motor 520 being connected to one end of the sliding shaft 512, a sliding ring 514 slidably connected to the outer wall of the sliding shaft 512, and limit blocks 515 connected to both ends of the sliding ring 514. The limit blocks 515 are configured to follow the sliding ring 514 and move along the axial direction of the sliding shaft 512, and the switching mechanism cuts at different positions by the limit blocks 515. The working effect produced by the operation of the second motor 520 is as follows: the mixing mechanism 6 includes multiple flaps 613 set on one side of the protective shell 501. The outer wall of the flaps 613 is set as a continuous arc surface. The multiple flaps 613 on the same side are configured to change the tilt angle synchronously. When the switching mechanism 5 switches to the angle control mode, the tilt angle of the flaps 613 is controlled to adjust the mixing intensity. The separation mechanism 7 includes a rotating frame 701 rotatably connected to the bottom of the inner wall of the mixing tank 1. The top of the rotating frame 701 is connected to the bottom of the protective shell 501. A filter pipe 703 is connected to the top of the protective shell 501. The rotating frame 701 drives the two mixing mechanisms 6 to rotate along the axis of the rotating frame 701 to separate the crushed powder from the fertilizer and prevent the crushed powder from clogging the gaps in the coating.

[0021] The switching mechanism 5 also includes a fixing ring 503 connected to the outer wall of one side of the mounting plate 502. A driven gear 505 is provided between the fixing ring 503 and the drive gear 504. A connecting column 506 is connected to one side of the driven gear 505. A connecting plate 507 is connected to one end of the connecting column 506. A connecting pipe 508 is rotatably connected to the outer wall of one side of the connecting plate 507. A second bevel gear 511 is connected to one end of the connecting pipe 508.

[0022] A rotating seat 509 is connected to the side wall of the connecting pipe 508. A first bevel gear 510 is rotatably connected to the outer wall of one side of the rotating seat 509. Two limiting grooves 513 are opened on the outer wall of the sliding ring 514. The inner wall of the sliding ring 514 is slidably connected to the limiting grooves 513 through a column.

[0023] A sliding rod 516 is connected to the outer wall of the sliding ring 514. A rotating frame 517 is slidably connected to one end of the sliding rod 516. A mounting base 518 is provided on one side of the outer wall of the mounting plate 502. One end of the rotating frame 517 is rotatably connected to the mounting base 518 through a column. A first motor 519 is installed on one side of the outer wall of the mounting base 518. The output end of the first motor 519 is connected to one end of the column of the rotating frame 517.

[0024] Specifically: a column is connected to one side of the second bevel gear 511; grooves are formed on the outer wall of one side of the drive gear 504 and the outer wall of one end of the column connected to the second bevel gear 511, and the cross-sectional shape of the grooves is the same as that of the limiting block 515; the outer wall of the column on one side of the second bevel gear 511 is slidably connected to the inner wall of the connecting pipe 508; the drive gear 504 is sleeved on the outside of the sliding shaft 512 and is rotatably connected to the sliding shaft 512; in the initial state, the sliding ring 514 is located on the side biased towards the drive gear 504; and the limiting block 515 is embedded in the groove on the side wall of the drive gear 504, so that the second motor 520 can operate... The effect is to drive the entire stirring mechanism 6 to rotate. At this time, the sliding ring 514 and the drive gear 504 are connected as a whole. The second motor 520 drives the sliding shaft 512 to rotate through its output end. The sliding shaft 512 is slidably connected to the column in the limiting groove 513 through the sliding ring 514, which drives the sliding ring 514 to rotate. The drive gear 504 follows the rotation of the sliding ring 514. The teeth on the outer wall of the drive gear 504 mesh with the teeth on the outer wall of the driven gear 505. The teeth of the driven gear 505 also mesh with the teeth on the inner wall of the fixed ring 503. The drive gear 504 drives the driven gear 505 to rotate along the axis of the fixed ring 503. Gear 505 drives connecting pipe 508 to rotate via rotating plate. Connecting pipe 508 drives rotating seat 509 to rotate around the axis of connecting pipe 508. Rotating seat 509 drives first bevel gear 510 to rotate around the axis of connecting pipe 508. First bevel gear 510 drives rotating rod 601 to rotate around the axis of connecting pipe 508, driving the entire mixing mechanism 6 to rotate, mixing the fertilizer in filter pipe 703. First motor 519 drives rotating frame 517 to rotate via output end. Rotating frame 517 pulls moving rod 516. Moving rod 516 drives sliding ring 514 to drive gear 504 from the bias direction. The sliding shaft 512 slides to one side of the second bevel gear 511, and the limiting block 515 is embedded in the groove on the outer wall of one end of the column connected to the second bevel gear 511. At this time, the sliding shaft 512 is separated from the drive gear 504 and connected to the second bevel gear 511 as a whole, so that the operation of the second motor 520 is switched to drive the second bevel gear 511 to rotate. The second motor 520 drives the sliding shaft 512 to rotate through the output end, and the sliding shaft 512 drives the second bevel gear 511 to rotate. The teeth of the second bevel gear 511 mesh with the teeth of the first bevel gear 510, and the second bevel gear 511 drives the first bevel gear 510 to rotate.

[0025] It should be noted that, in the above description, the cone surface of the bevel gear coincides with the vertex of the friction wheel, and power transmission is achieved through pure rolling. This can realize power transmission between two intersecting shafts and is suitable for vertical shaft transmission scenarios. This part is a well-known technology in the field and will not be elaborated here.

[0026] It should be noted that the selection of the first motor 519 and the second motor 520 and the control unit in the above description are selected as needed. This part is well-known technology in the field and will not be described in detail here.

[0027] Please see Figure 5 and Figure 7 The mixing mechanism 6 also includes a rotating rod 601 connected to the first bevel gear 510 via a column in the middle. Both ends of the rotating rod 601 are rotatably connected to telescopic rods 602. The top of the protective shell 501 is rotatably connected to a turntable 603. One end of the telescopic rod 602 passes through the outer wall of the turntable 603.

[0028] Multiple limit frames 604 are connected to one side of the outer wall of the turntable 603. Two adjacent limit frames 604 are symmetrically arranged on both sides of the telescopic rod 602. The outer wall of the telescopic rod 602 is provided with a stroke groove 605. A rotating block 612 is rotatably connected between the top frames of the limit frames 604. The outer wall of one side of the rotating block 612 is connected to the corresponding position of the outer wall of the flip plate 613.

[0029] The sidewall of the limiting frame 604 is rotatably connected to a first connecting frame 606, a second connecting frame 607, and a third connecting frame 608 at corresponding positions. The middle sidewall of the first connecting frame 606 is rotatably connected to a first linkage frame 609. One end of the first linkage frame 609 is rotatably connected to the sidewall of the second connecting frame 607 at a corresponding position. The sidewall of the first connecting frame 606 is rotatably connected to a second linkage frame 610. The sidewall of the second linkage frame 610 is rotatably connected to the sidewalls of the second connecting frame 607 and the third connecting frame 608 at corresponding positions. The sidewall of the second connecting frame 607 is rotatably connected to a third linkage frame 611. The middle sidewall of the third linkage frame 611 is rotatably connected to the sidewall of the third connecting frame 608 at a corresponding position. The sidewall of the third linkage frame 611 is connected to the sidewall of the rotating block 612.

[0030] Specifically, the second motor 520 operates as follows: when it drives the second bevel gear 511 to rotate, the second bevel gear 511 drives the first bevel gear 510 to rotate. When the first bevel gear 510 rotates, it drives the rotating rod 601 to rotate around the middle of the rod body as its axis, causing one end of the rotating rod 601 to rise and the other end to fall. The raised end of the rotating rod 601 pushes the telescopic rod 602 out of the turntable 603. The rod body provided on the side wall of the telescopic rod 602 slides along the stroke groove 605 and rises. The first connecting frame 606, the second connecting frame 607, and the third connecting frame 608 rotate synchronously. The first linkage frame 609, the second linkage frame 610, and the third linkage frame 611 rotate in the opposite direction to the rotation direction of the first connecting frame 606, the second connecting frame 607, and the third connecting frame 608. The distance between the frames of the first connecting frame 606, the second connecting frame 607, and the third connecting frame 608 decreases, thus reducing the distance between the flap 613 and the turntable 603. As the angle between the rotating rod 601 decreases, the lowering end of the rotating rod 601 pulls the telescopic rod 602 back to the turntable 603. The rod body set on the side wall of the telescopic rod 602 slides along the stroke groove 605 and descends. The first connecting frame 606, the second connecting frame 607 and the third connecting frame 608 rotate synchronously. The first linkage frame 609, the second linkage frame 610 and the third linkage frame 611 move in the opposite direction to the rotation direction of the first connecting frame 606, the second connecting frame 607 and the third connecting frame 608. The increased distance between the frames of the first connecting frame 606, the second connecting frame 607 and the third connecting frame 608 increases the angle between the flip plate 613 and the turntable 603, realizing the synchronous adjustment of the tilt angle of multiple flip plates 613. At the same time, because the tilt angle of the flip plate 613 changes, when the operation effect of the second motor 520 switches to drive the overall rotation of the mixing mechanism 6, the mixing intensity of the fertilizer by the flip plate 613 also changes.

[0031] Please see Figures 3-4 The separation mechanism 7 also includes a feed pipe 702 connected to the top of the pressure-resistant cover 3. The feed pipe 702 is a three-way pipe, and the two ends of the bottom of the feed pipe 702 are respectively connected to the filter pipe 703 at the corresponding positions.

[0032] The outer wall of the filter tube 703 is provided with multiple filter holes 704 along the axis. The bottom of the rotating frame 701 is connected to the rotating shaft 705. The bottom of the mixing tank 1 is equipped with a third motor 706, which is connected to the bottom of the rotating shaft 705 through its output end.

[0033] The top of the mixing tank 1 is connected to a perforated plate 2, the top of the pressure cover 3 is equipped with multiple blowers 4, and the bottom of the mixing tank 1 is connected to a support frame 8.

[0034] Specifically: the switching mechanism 5, the mixing mechanism 6, the filter pipe 703, and the feed pipe 702 can be disassembled and assembled as a whole. The third motor 706 drives the rotating frame 701 to rotate through the output end. The rotating frame 701 drives the mixing mechanism 6 at both ends to rotate around the axis of the rotating frame 701, so that the mixing mechanism 6 is subjected to an outward centrifugal force. When the mixing mechanism 6 is driven by the second motor 520 to mix fertilizer, the coating material rubs against the high-hardness phosphorus and potassium fertilizer to produce broken powder. The filter hole 704 on the outer wall of the filter pipe 703 has a diameter smaller than the particle size of the mixed fertilizer but larger than the particle size of the broken powder. The mixed fertilizer is intercepted by the filter pipe 703, while the broken powder is thrown out of the filter pipe 703 by the centrifugal force and enters the mixing tank 1. The fan 4 installed on the top of the pressure cover 3 draws the air out of the pressure cover 3, so that the pressure inside the pressure cover 3 is lower than that inside the mixing tank 1. The broken powder rises under the pressure and passes through the perforated plate 2 at the top of the mixing tank 1 and enters the interior of the pressure cover 3, thus realizing the separation of the broken powder and the mixed fertilizer.

[0035] It should be noted that the selection of the third motor 706 and the control unit in the above description are selected as needed. This part is well-known technology in the field and will not be elaborated here.

[0036] It should be noted that the selection of fan 4 and control unit in the above description are selected as needed. Fan 4 is a device that realizes gas transportation by converting the centrifugal force or axial thrust generated by the rotation of the impeller through mechanical energy conversion. This part is well known technology in the field and will not be described in detail here.

[0037] Working principle: During use, the operator puts the fertilizer to be mixed into the device through the feed pipe 702. Then, the operator controls the first motor 519 to switch the operation of the second motor 520 to adjust the tilt angle of the flap 613. The operator then starts the second motor 520 to adjust the tilt angle of the flap 613 according to actual needs to control the mixing intensity. After adjustment, the operator controls the first motor 519 again to switch the operation of the second motor 520 to drive the mixing mechanism 6 to rotate as a whole. Then, the operator starts the second motor 520 to mix the fertilizer. After the device has been running for a period of time, the operator starts the third motor 706 and the blower 4 to separate the crushed powder from the mixed fertilizer. After the fertilizer is mixed, the operator closes the device and removes the switching mechanism 5, the mixing mechanism 6, the filter pipe 703, and the feed pipe 702 as a whole. After pouring out the mixed fertilizer, the operator puts the switching mechanism 5, the mixing mechanism 6, the filter pipe 703, and the feed pipe 702 back into their original positions as a whole.

[0038] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer, characterized in that, Including mixing tank (1), the mixing tank (1) top is connected with the pressure cover (3); Switching mechanism (5), the switching mechanism (5) includes the protection shell (501) arranged in the mixing tank (1), the mounting plate (502) is connected to the inner wall of the protection shell (501), the second motor (520) is installed on one side of the mounting plate (502), the driving gear (504) is arranged on one side of the second motor (520), the sliding shaft (512) is rotatably connected to one side of the driving gear (504), the output end of the second motor (520) is connected with one end of the sliding shaft (512), the sliding ring (514) is slidably connected to the outer wall of the sliding shaft (512), the limiting block (515) is connected to both ends of the sliding ring (514), the limiting block (515) is configured to move along the shaft body direction of the sliding shaft (512) following the sliding ring (514), the working effect generated by the second motor (520) is switched by embedding the limiting block (515) in different positions; The turnover mechanism (6) includes a plurality of turnover plates (613) arranged on one side of the protection shell (501), the outer wall of the turnover plate (613) is arranged as a continuous curved surface, and the plurality of turnover plates (613) on the same side are configured to change the inclination angle synchronously, the turnover intensity is adjusted by controlling the inclination angle of the turnover plate (613) when the switching mechanism (5) is switched to the angle control mode; The separation mechanism (7) includes a rotating frame (701) rotatably connected to the inner wall of the mixing tank (1), the rotating frame (701) is connected to the bottom of the protection shell (501), and the filter pipe (703) is connected to the top of the protection shell (501), the two turnover mechanisms (6) are driven by the rotating frame (701) to rotate along the axis of the rotating frame (701), so that the broken powder is separated from the fertilizer, and the broken powder is prevented from blocking the void of the coating.

2. The low-loss efficient mixing device for slow controlled release blended fertilizer and organic-inorganic compound fertilizer according to claim 1, characterized in that, The switching mechanism (5) further includes a fixed ring (503) connected to the outer wall of one side of the mounting plate (502), a driven gear (505) is arranged between the fixed ring (503) and the driving gear (504), the connecting column (506) is connected to one side of the driven gear (505), the connecting plate (507) is connected to one end of the connecting column (506), the connecting pipe (508) is rotatably connected to the outer wall of one side of the connecting plate (507), and the second bevel gear (511) is connected to one end of the connecting pipe (508).

3. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 2, characterized in that, The connecting pipe (508) is connected with a rotating seat (509), the first bevel gear (510) is rotatably connected to the outer wall of one side of the rotating seat (509), two limiting grooves (513) are formed in the outer wall of the sliding ring (514), and the inner wall of the sliding ring (514) is slidably connected with the limiting grooves (513) through a column.

4. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 1, characterized in that, The outer wall of the sliding ring (514) is connected with a moving rod (516), one end of the moving rod (516) is slidably connected with a rotating frame (517), one side of the outer wall of the mounting plate (502) is provided with a mounting seat (518), one end of the rotating frame (517) is rotatably connected with the mounting seat (518) through a column body, the outer wall of one side of the mounting seat (518) is provided with a first motor (519), and the output end of the first motor (519) is connected with one end of the column body of the rotating frame (517).

5. The low-loss efficient mixing device for slow controlled release blended fertilizer and organic-inorganic compound fertilizer according to claim 4, characterized in that, The turning and stirring mechanism (6) further comprises a rotating rod (601) connected with the first bevel gear (510) through a column body in the middle, both ends of the rotating rod (601) are rotatably connected with telescopic rods (602), and the top of the protective shell (501) is rotatably connected with a rotating disc (603).

6. The low-loss high-efficiency mixing device for slow controlled release blended fertilizer and organic-inorganic compound fertilizer according to claim 5, characterized in that, The outer wall of one side of the rotating disc (603) is connected with a plurality of limiting frames (604), and two adjacent limiting frames (604) are symmetrically arranged on both sides of the telescopic rod (602) respectively.

7. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 6, characterized in that, The outer wall of one side of the rotating disc (603) is connected with a plurality of limiting frames (604), and two adjacent limiting frames (604) are symmetrically arranged on both sides of the telescopic rod (602) respectively.

8. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 1, characterized in that, The outer wall of one side of the rotating disc (603) is connected with a plurality of limiting frames (604), and two adjacent limiting frames (604) are symmetrically arranged on both sides of the telescopic rod (602) respectively.

9. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 1, characterized in that, The outer wall of one side of the rotating disc (603) is connected with a plurality of limiting frames (604), and two adjacent limiting frames (604) are symmetrically arranged on both sides of the telescopic rod (602) respectively.

10. The low-loss high-efficiency mixing device for controlled-release blended fertilizer and organic-inorganic compound fertilizer according to claim 1, characterized in that, The separation mechanism (7) further comprises a feeding pipe (702) communicated with the top of the pressure-resistant cover (3), the feeding pipe (702) is a three-way pipe, and the bottom of the feeding pipe (702) is connected with the filter pipes (703) in the corresponding positions respectively. A plurality of filter holes (704) are formed in the outer wall of the filter pipe (703) along an axis, a rotating shaft (705) is connected to the bottom of the rotating frame (701), a third motor (706) is mounted at the bottom of the mixing tank (1), and the third motor (706) is connected with the bottom end of the rotating shaft (705) through an output end. The top of the mixing tank (1) is connected with a hole plate (2), the top of the pressure-resistant cover (3) is provided with a plurality of fans (4), and the bottom of the mixing tank (1) is connected with a supporting frame (8). The top of the mixing tank (1) is connected with a hole plate (2), the top of the pressure-resistant cover (3) is provided with a plurality of fans (4), and the bottom of the mixing tank (1) is connected with a supporting frame (8).