Granulation device for compound fertilizer production

Abstract

The invention relates to the technical field of compound fertilizer production, in particular to a granulation device for compound fertilizer production. Comprising a mounting shell, and a discharging plate is arranged on the lower portion of the mounting shell; the sliding plate is connected into the mounting shell in a sliding mode, a sliding supporting plate is connected to the sliding plate in a sliding mode, a fixing frame is fixedly connected to the sliding plate, and a fixing bent plate is fixedly connected to the sliding supporting plate; the two elastic plates are fixedly connected to the fixed frame and the fixed bent plate respectively, and all the sliding frames are fixedly connected with the adjacent elastic plates; the two guide plates are fixedly connected to the upper portions of the corresponding elastic plates respectively, and the two guide plates are fixed by the fixing frame and the fixing bent plate respectively. According to the device, the two elastic plates are used for guiding an extruded and formed plate-shaped block, and the plate-shaped block is bent and crushed in combination with continuous bending deformation of the elastic plates, so that the plate-shaped block is quickly crushed into spherical particles, the integrity of the shape of fertilizer particles is kept, and the quality of a final product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compound fertilizer production, and specifically to a granulating device for compound fertilizer production. Background Art

[0002] Compound fertilizer is a kind of fertilizer containing multiple nutrient elements, which is widely used in agricultural production to provide comprehensive nutrients required for crop growth. In the modern fertilizer production process, a granulating device is usually used to process powdery fertilizer into granular products. The working process of the existing granulating device for compound fertilizer production is generally as follows: The powdery fertilizer is extruded through two rollers with a large number of hemispherical holes to form a plate-shaped block with multiple hemispherical protrusions; the plate-shaped block is broken by the opposite rotation of two rotating shafts with multiple support rods, so that the plate is decomposed into a large number of spherical particles; the prepared fertilizer particles are exported from the granulating device and packaged.

[0003] However, in the actual operation of the existing granulating device, the two rotating shafts with multiple support rods break the extruded plate-shaped block by rotating in opposite directions. Although it can effectively break the plate-shaped block into fertilizer particles, it will also cause some originally complete spherical particles to be broken, resulting in a large number of fine particles and fertilizer powder in the finally prepared fertilizer particles. This situation not only affects the uniformity and appearance quality of the fertilizer particles, but also requires additional screening treatment for too much fine powder, increasing the complexity and cost of production. Summary of the Invention

[0004] Aiming at the defect that some complete spherical particles will be broken when the extruded plate-shaped block is broken by the support rods, the present invention provides a granulating device for compound fertilizer production.

[0005] The technical solution of the present invention is: A granulating device for compound fertilizer production, comprising: a mounting shell, a discharge plate is arranged at the lower part of the mounting shell; a sliding plate, which is slidably connected in the mounting shell, a sliding support plate is slidably connected to the sliding plate, a fixed frame is fixedly connected to the sliding plate, a fixed bent plate is fixedly connected to the sliding support plate, a plurality of sliding frames are slidably connected to both the fixed frame and the fixed bent plate, and the sliding frames on the fixed frame correspond to the sliding frames on the fixed bent plate one by one; two elastic plates, which are respectively fixedly connected to the fixed frame and the fixed bent plate, all the sliding frames are fixedly connected to the adjacent elastic plates, and the two elastic plates are bent and changed in a wave shape by the staggered movement of the plurality of sliding frames; two guide plates, which are respectively fixedly connected to the upper parts of the corresponding elastic plates, and the two guide plates are respectively fixed by the fixed frame and the fixed bent plate; an extrusion mechanism, which is arranged on the mounting shell and is used for extruding fertilizer powder into a plate-shaped block with particles; a crushing mechanism, which is arranged on the fixed frame and the fixed bent plate and is used for controlling the staggered movement of the plurality of sliding frames.

[0006] Preferably, the material extrusion mechanism includes: a material guiding shell fixedly connected to the installation shell for temporarily storing fertilizer powder and guiding it into the installation shell; two extrusion rollers rotatably connected to the upper part of the installation shell, with a plurality of hemispherical holes on the surface of the extrusion rollers, and the two extrusion rollers are driven by a gear set, and a power source is arranged at one of the extrusion rollers.

[0007] Preferably, the distance between the upper ends of the two guiding plates is greater than the distance between the axes of the two extrusion rollers, and the upper ends of the guiding plates are in contact with the adjacent extrusion rollers, so as to make all the plate-shaped blocks with particles extruded by the two extrusion rollers enter between the two elastic plates.

[0008] Preferably, both sides of the two elastic plates are attached to the installation shell, so as to form a wavy channel between the two elastic plates, and the overall shape of the two elastic plates is bent and wavy, which is used to extend the moving time of the plate-shaped blocks extruded by the two extrusion rollers between the two elastic plates.

[0009] Preferably, the crushing mechanism includes: four motors respectively arranged on the fixed frame and the fixed bent plate, two rotating shafts are rotatably connected to both the fixed frame and the fixed bent plate, the rotating shafts are fixedly connected to the output shafts of the adjacent motors, and a plurality of eccentric discs are fixedly connected to the rotating shafts, and the number of the eccentric discs is the same as the number of the sliding frames, and the eccentric discs are used to push the sliding frames to move reciprocally; an anti-blocking component is arranged on the installation shell for judging whether a blockage occurs according to the weight of the fertilizer between the two elastic plates.

[0010] Preferably, the anti-blocking component includes: a first telescopic rod fixedly connected to the installation shell, the telescopic end of the first telescopic rod is fixedly connected to the sliding plate, and a first spring is fixedly connected between the sliding plate and the installation shell; a limit pin is slidably connected to the installation shell, a second spring is fixedly connected between the limit pin and the installation shell, a blind hole is arranged on the sliding plate, and the limit pin limits the movement of the sliding plate through the blind hole of the sliding plate, and judges the weight of the fertilizer between the two elastic plates according to the state of the sliding plate.

[0011] Preferably, the anti-blocking component further includes: a second telescopic rod fixedly connected to the sliding plate, the telescopic end of the second telescopic rod is fixedly connected to the sliding support plate, and the second telescopic rod is used to drive the fixed bent plate to move through the sliding support plate to widen the gap between the two elastic plates; a liquid guide pipe is communicated with the second telescopic rod, the liquid guide pipe penetrates the sliding plate, the liquid guide pipe is communicated with the first telescopic rod, and hydraulic oil is filled in both the first telescopic rod and the second telescopic rod.

[0012] As a preference of the present invention, it further includes: a pre-filling mechanism, arranged on the upper part of the installation shell, for pre-filling fertilizer powder into the hemispherical holes of the extrusion rollers. The pre-filling mechanism includes: two circular rollers, both rotatably connected to the upper part of the installation shell, and the circular rollers are driven by gears with the adjacent extrusion rollers; two partition plates, both arranged in the material guiding shell, and the partition plates are in contact with the adjacent circular rollers; a vibration assembly, arranged on the material guiding shell, for assisting the downward transportation of the fertilizer powder in the material guiding shell through vibration.

[0013] As a preference of the present invention, the vibration assembly includes: a sliding bent rod, limited and slidably connected to the material guiding shell, a tension spring is fixedly connected between the sliding bent rod and the material guiding shell, and one side of the circular roller moves the sliding bent rod through a gear; a plurality of fixed support rods, all fixedly connected to the sliding bent rod, and the fixed support rods are used to impact the partition plate to make the partition plate vibrate.

[0014] As a preference of the present invention, the vibration assembly further includes: two scraping plates, both arranged on the upper part of the installation shell, and the scraping plates are used to scrape off the fertilizer adhered to the surface of the extrusion roller except for the pre-filling hemispherical holes.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The present invention guides the plate-shaped blocks formed by extrusion through two elastic plates, and combines the continuous bending deformation of the elastic plates to bend and break the plate-shaped blocks, so that the plate-shaped blocks are quickly broken into spherical particles, maintaining the integrity of the shape of the fertilizer particles and improving the quality of the final product.

[0016] 2. The present invention limits the sliding plate through the limit pin in the anti-blocking component, monitors whether the overall weight of the two elastic plates increases, and when a blockage occurs between the two elastic plates, the distance is quickly increased, so as to quickly dredge the plate-shaped blocks blocked between the two elastic plates, maintaining the stable production efficiency of the device and reducing the possibility of the device stopping due to blockage.

[0017] 3. The present invention pre-fills fertilizer powder into the hemispherical holes of the extrusion rollers through the opposite rolling of the circular rollers and the extrusion rollers in the pre-filling mechanism, increasing the compactness of the upper hemispherical protrusions on the plate-shaped blocks extruded later, facilitating the rapid separation of the spherical particles during the subsequent crushing of the plates, and ensuring the integrity of the shape of the prepared fertilizer particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the structure inside the installation shell of the present invention;

[0020] Figure 3Schematic three-dimensional structure diagram of the parts at the installation shell and the sliding plate of the present invention;

[0021] Figure 4 Schematic three-dimensional structure diagram of the parts at the fixed frame and the fixed bent plate of the present invention;

[0022] Figure 5 Schematic three-dimensional structure diagram of the parts at the sliding plate and the sliding support plate of the present invention;

[0023] Figure 6 Schematic three-dimensional structure diagram of the parts at the rotating shaft and the eccentric disc of the present invention;

[0024] Figure 7 Schematic three-dimensional structure diagram of the parts at the first telescopic rod and the limit pin of the present invention;

[0025] Figure 8 Schematic three-dimensional structure diagram of the parts at the round roller and the partition plate of the present invention;

[0026] Figure 9 Schematic three-dimensional structure diagram of the parts at the sliding bent rod and the fixed support rod of the present invention.

[0027] The labels in the drawings are: 1 - installation shell, 2 - discharge plate, 3 - sliding plate, 4 - sliding support plate, 5 - fixed frame, 6 - fixed bent plate, 7 - sliding frame, 8 - elastic plate, 9 - guide plate, 21 - material guiding shell, 22 - extrusion roller, 31 - motor, 32 - rotating shaft, 33 - eccentric disc, 41 - first telescopic rod, 42 - limit pin, 51 - second telescopic rod, 52 - liquid guide pipe, 61 - round roller, 62 - partition plate, 71 - sliding bent rod, 72 - fixed support rod, 81 - scraping plate. Detailed implementation manners

[0028] Next, in conjunction with the attached Figure 1 - attached Figure 9 , the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment 1: During the operation of the existing granulation device for compound fertilizers, usually, the slightly moist fertilizer powder is first extruded into a plate-shaped block with a large number of hemispherical protrusions. Then, when the two rotating shafts 32 with multiple support rods break the plate-shaped block by rotating in opposite directions, some spherical particles will be broken, resulting in a large amount of fine particles and fertilizer powder in the finally prepared fertilizer powder, which affects the uniformity and appearance quality of the prepared fertilizer particles.

[0030] A granulation device for producing compound fertilizers, please refer to the attached Figure 1-Attachment Figure 3 、Attachment Figure 5 and Attachment Figure 6 As shown in Figure 3 , Figure 5 and Figure 6 , it includes: an installation shell 1, a discharge plate 2 is arranged at the lower part of the installation shell 1; a sliding plate 3, which is slidably connected inside the installation shell 1, a sliding support plate 4 is slidably connected to the sliding plate 3, a fixed frame 5 is fixedly connected to the sliding plate 3, a fixed bent plate 6 is fixedly connected to the sliding support plate 4, and a plurality of sliding frames 7 are slidably connected to both the fixed frame 5 and the fixed bent plate 6. The sliding frames 7 on the fixed frame 5 correspond to the sliding frames 7 on the fixed bent plate 6 one by one; two elastic plates 8, which are respectively fixedly connected to the fixed frame 5 and the fixed bent plate 6, and all the sliding frames 7 are fixedly connected to the adjacent elastic plates 8, so that the two elastic plates 8 are bent in a wavy shape by the staggered movement of the plurality of sliding frames 7; two guide plates 9, which are respectively fixedly connected to the upper parts of the corresponding elastic plates 8, and the two guide plates 9 are respectively fixed by the fixed frame 5 and the fixed bent plate 6; a material extrusion mechanism, which is arranged on the installation shell 1 and is used to extrude the fertilizer powder into a plate-shaped block with particles; a crushing mechanism, which is arranged on the fixed frame 5 and the fixed bent plate 6 and is used to control the staggered movement of the plurality of sliding frames 7. The material extrusion mechanism includes: a guide shell 21, which is fixedly connected to the installation shell 1 and is used to temporarily store the fertilizer powder and guide it into the installation shell 1; two extrusion rollers 22, which are rotatably connected to the upper part of the installation shell 1, and a plurality of hemispherical holes are arranged on the surface of the extrusion rollers 22. The two extrusion rollers 22 are driven by a gear set, and a power source is arranged at one side of the extrusion roller 22. The distance between the upper ends of the two guide plates 9 is greater than the distance between the axes of the two extrusion rollers 22, and the upper end of the guide plate 9 is in contact with the adjacent extrusion roller 22, so as to make all the plate-shaped blocks with particles formed by the extrusion of the two extrusion rollers 22 enter between the two elastic plates 8. Both sides of the two elastic plates 8 are attached to the installation shell 1, so as to form a wavy channel between the two elastic plates 8. The overall shape of the two elastic plates 8 is bent in a wavy shape, which is used to extend the moving time of the plate-shaped blocks formed by the extrusion of the two extrusion rollers 22 between the two elastic plates 8. The crushing mechanism includes: four motors 31, which are respectively arranged on the fixed frame 5 and the fixed bent plate 6. Two rotating shafts 32 are rotatably connected to both the fixed frame 5 and the fixed bent plate 6. The rotating shafts 32 are fixedly connected to the output shafts of the adjacent motors 31. A plurality of eccentric disks 33 are fixedly connected to the rotating shafts 32. The number of the eccentric disks 33 is the same as the number of the sliding frames 7, and the eccentric disks 33 are used to push the sliding frames 7 to move reciprocally; an anti-blocking component, which is arranged on the installation shell 1 and is used to judge whether a blockage occurs according to the weight of the fertilizer between the two elastic plates 8.

[0031] In the above solution, it aims to solve the problem that when the plate-shaped blocks formed by extrusion molding are broken, some originally intact spherical particles will be broken, resulting in a large number of fine particles and fertilizer powder in the prepared fertilizer particles; a control panel is provided on the installation shell 1, and the motor 31 and the power source are both electrically connected to the control panel. The distribution of the hemispherical holes on the extrusion roller 22 in the attached drawing is only a schematic state. In actual use, the operator can freely design according to requirements. The hemispherical holes at the minimum gap between the two extrusion rollers 22 are located on the same horizontal plane and correspond to each other, so that the hemispherical protrusions on the plate-shaped blocks are broken to form spherical particles. The two guide plates 9 are distributed in a front-back mirror image. The elastic plate 8 is located above the discharge plate 2. The sliding frames 7 on the fixed frame 5 and the fixed bent plate 6 all change synchronously and alternately, so that the two elastic plates 8 keep bending in a wave-like manner. The elastic plate 8 bends and breaks the plate-shaped blocks moving inside it through wave-like bending, ensuring the integrity of the spherical particles and reducing the proportion of fine particles in the prepared fertilizer particles. During the change of the wave path of the two elastic plates 8, the distance between different positions of the two elastic plates 8 remains unchanged. The material of the elastic plate 8 is an elastic metal thin plate. The fixed frame 5 and the fixed bent plate 6 are both V-shaped structures, and the openings of the fixed frame 5 and the fixed bent plate 6 both face the left. The middle parts of the two elastic plates 8 are fixed to the bends of the fixed frame 5 and the fixed bent plate 6 respectively. The shape of the elastic plate 8 is jointly determined by multiple sliding frames 7. The two guide plates 9 are located below the two extrusion rollers 22. The front and back sides of the two extrusion rollers 22 are blocked by the material guide shell 21. The width of the elastic plate 8 is equal to the length of the extrusion roller 22, which is used to make all the plate-shaped blocks extruded and formed by the two extrusion rollers 22 enter between the two elastic plates 8.

[0032] Working process: When the operator uses the device to make fertilizer powder into fertilizer granules, the operator continuously injects the fertilizer powder into the guide shell 21, and the fertilizer powder is accumulated between the two squeezing rollers 22. At the same time, the operator starts the four motors 31 and the power source, and the power source drives the squeezing roller 22 on the rear side to rotate. The two squeezing rollers 22 are driven by the gear set and rotate in opposite directions. The front squeezing roller 22 rotates counterclockwise (from left to right). The two squeezing rollers 22 squeeze the fertilizer powder accumulated thereon into a plate-like block with multiple hemispherical protrusions. The plate-like block is guided into between the two elastic plates 8 via the two guide plates 9, and the plate-like block is transported downward in the two elastic plates 8. After the machine 31 is started, the output shaft of the motor 31 drives the rotating shaft 32 to rotate, and the rotating shaft 32 causes the sliding frame 7 to slide up and down through the multiple eccentric disks 33 thereon. The multiple sliding frames 7 move alternately to drive the adjacent elastic plates 8 to bend and deform. All the sliding frames 7 cooperate with each other to make the elastic plates 8 perform continuously changing bending deformations while the spacing between each position remains unchanged, so that the plate-like blocks moving in the elastic plates 8 break due to bending, and then become a large number of fertilizer particles. The fertilizer particles move from the two elastic plates 8 to the discharge plate 2 and are finally discharged from the device, and finally packaged. As the fertilizer powder is continuously injected into the guide shell 21, the compound fertilizer particles are continuously discharged from the discharge plate 2.

[0033] During the operation of the device, since the fertilizer powder is slightly moist, part of the powder will be adsorbed on the facing surfaces of the two elastic plates 8, resulting in the presence of plate-like blocks or fertilizer particles being retained between the two elastic plates 8, causing blockage between the two elastic plates 8, hindering the stable transportation of the fertilizer particles. If the above situation occurs, as the plate-like blocks enter between the two elastic plates 8, the overall weight of the two elastic plates 8 increases, the two elastic plates 8 of the anti-blocking assembly drive the sliding plate 3, the sliding support plate 4, the fixed frame 5 and the fixed bent plate 6 to move downward synchronously, the sliding plate 3 causes the sliding support plate 4 to move backward through the anti-blocking assembly, and the sliding support plate 4 drives the fixed bent plate 6 to move backward. The elastic plate 8 on the rear side moves synchronously, and the spacing between the two elastic plates 8 increases, so that the plate-like blocks can smoothly pass through the blocking parts of the two elastic plates 8. During this process, the two elastic plates 8 still maintain a bending change state, and the plate-like blocks passing between the two elastic plates 8 are bent and broken. When the blocking part between the two elastic plates 8 is unblocked, the overall weight of the two elastic plates 8 is reduced, and the anti-blocking component controls the rear elastic plate 8 to move forward and reset, and moves the two elastic plates 8 upward and reset. When all the fertilizer granulation is completed, the control panel turns off all the motors 31 of the power source, and the elastic plate 8 stops deforming. At this point, all parts in the device return to their initial positions.

[0034] For further information, please refer to the attached Figure 2 -Attached Figure 5 and attached Figure 7As shown, the anti-blocking component includes: a first telescopic rod 41, which is fixed in the mounting shell 1, and the telescopic end of the first telescopic rod 41 is fixed to the sliding plate 3, and a first spring is fixed between the sliding plate 3 and the mounting shell 1; a limit pin 42, which is slidably connected in the mounting shell 1, and a second spring is fixed between the limit pin 42 and the mounting shell 1, and a blind hole is provided on the sliding plate 3, and the limit pin 42 limits the movement of the sliding plate 3 through the blind hole of the sliding plate 3, and the weight of the fertilizer between the two elastic plates 8 is judged according to the state of the sliding plate 3. The anti-blocking component also includes: a second telescopic rod 51, which is fixed to the sliding plate 3, and the telescopic end of the second telescopic rod 51 is fixed to the sliding support plate 4, and the second telescopic rod 51 is used to drive the fixed bent plate 6 to move through the sliding support plate 4 to expand the gap between the two elastic plates 8; a liquid guide tube 52, which is connected to the second telescopic rod 51, and the liquid guide tube 52 penetrates the sliding plate 3, and the liquid guide tube 52 is connected to the first telescopic rod 41, and the first telescopic rod 41 and the second telescopic rod 51 are both filled with hydraulic oil.

[0035] In the above scheme, it is intended to solve the problem that part of the fertilizer powder will be adsorbed on the facing surfaces of the two elastic plates 8, resulting in the obstruction of the movement of the plate-like blocks between the two elastic plates 8 and causing blockage between the elastic plates 8; when the sliding plate 3 and the sliding support plate 4 slide relative to each other, only the distance between the two elastic plates 8 is slightly increased, so that the wave change of the distance between the two elastic plates 8 after the change can still make the plate-like blocks be broken by the two elastic plates 8, thereby preventing a large number of plate-like blocks from being unbroken, ensuring the uniformity of the fertilizer particles produced by the device, and reducing the possibility of shutdown due to blockage during the operation of the device. A first spring is fixedly connected between the sliding plate 3 and the mounting shell 1 and is always in a compressed and stored state. The initial accumulated elasticity of the first spring is slightly smaller than the resistance of the limit pin 42 to limit the movement of the sliding plate 3, so that the sliding plate 3 can be moved and reset after the blockage between the two elastic plates 8 is cleared.

[0036] Working process: During the operation of this device, if there is a blockage between the two elastic plates 8, the plate-like blocks cannot move downward after entering between the two elastic plates 8 and are accumulated, and the weight of the two elastic plates 8 gradually increases. When the total weight of the two elastic plates 8 is greater than the resistance of the limit pin 42 to limit the movement of the sliding plate 3, the blind hole of the sliding plate 3 squeezes the limit pin 42, and the limit pin 42 moves to the right and compresses the second spring. The limit of the sliding plate 3 is released and slides downward, and the sliding plate 3 compresses the first spring connected to it, and the sliding plate 3 pushes the telescopic end of the first telescopic rod 41 to contract, and the hydraulic oil in the first telescopic rod 41 enters the second telescopic rod 51 through the liquid guide tube 52. The telescopic end of the second telescopic rod 51 contracts and drives the sliding support plate 4 to move backward relative to the sliding plate 3. The sliding support plate 4 drives the elastic plate 8 on the rear side to move backward a short distance through the fixed bent plate 6, and the spacing between the two elastic plates 8 increases, so that the plate-like blocks at the blocked position move downward smoothly, and the blockage between the two elastic plates 8 is unblocked.

[0037] After the blockage between the two elastic plates 8 is cleared, the weight of the two elastic plates 8 is gradually restored, and the sliding plate 3 moves upward under the elastic force of the first spring connected thereto, and the two elastic plates 8 move and reset. The hydraulic oil in the liquid guide tube 52 flows in the opposite direction, and the telescopic end of the second telescopic rod 51 extends out and pushes the sliding support plate 4 to move and reset. The spacing between the two elastic plates 8 is restored to its initial state. When the limit pin 42 is aligned with the blind hole on the sliding plate 3, the limit pin 42 moves to the left and resets under the elastic force of the second spring connected thereto. The limit pin 42 is reinserted into the blind hole of the sliding plate 3, and the sliding plate 3 restores its limit state. At this point, the parts in the device are restored to their initial working state. If the blockage between the two elastic plates 8 occurs again during subsequent use of the device, the above-mentioned clearing and resetting operations are repeated.

[0038] Example 2: Based on Example 1, please refer to the attached Figure 2 , Attachment Figure 8 and attached Figure 9 As shown, it also includes: a pre-filling mechanism, which is arranged on the upper part of the mounting shell 1 and is used to pre-fill the fertilizer powder into the hemispherical hole of the squeezing roller 22. The pre-filling mechanism includes: two round rollers 61, which are both rotatably connected to the upper part of the mounting shell 1, and the round rollers 61 and the adjacent squeezing rollers 22 are driven by gears; two partition plates 62, which are both arranged in the guide shell 21, and the partition plates 62 are in contact with the adjacent round rollers 61; a vibration component, which is arranged on the guide shell 21 and is used to assist the fertilizer powder in the guide shell 21 to be transported downward by vibration, and the vibration component is used to prevent the fertilizer powder in the guide shell 21 from being transported downward by vibration. The assembly includes: a sliding curved rod 71, which is limitedly slidably connected to the material guide shell 21, and a tension spring is fixedly connected between the sliding curved rod 71 and the material guide shell 21. The round roller 61 on one side moves the sliding curved rod 71 through the gear; a plurality of fixed support rods 72, all of which are fixedly connected to the sliding curved rod 71, and the fixed support rods 72 are used to hit the partition plate 62 to make the partition plate 62 vibrate. The vibration assembly also includes: two scraping plates 81, both of which are arranged on the upper part of the mounting shell 1, and the scraping plates 81 are used to scrape off the fertilizer attached to the surface of the extrusion roller 22 except for the hemispherical holes of the pre-filler.

[0039] In the above scheme, it is intended to solve the problem that the existing fertilizer powder is filled into the upper hemispherical hole of the extrusion roller 22 by free falling of gravity combined with the opposite extrusion of two extrusion rollers 22, which is prone to the situation that the fertilizer powder in the hemispherical hole of some extrusion rollers 22 is loosely filled or not filled, resulting in the problem of uneven size of the prepared fertilizer particles; the surface of the round roller 61 is a smooth arc surface, and the round roller 61 is only used to pre-fill the fertilizer powder into the hemispherical hole of the extrusion roller 22. Combined with the subsequent opposite rotation of the two extrusion rollers 22, the upper hemispherical protrusion of the plate-like block at the extrusion location is made tighter, which is convenient for the rapid separation of spherical particles during the subsequent plate crushing, and ensures that the structure of the prepared fertilizer particles is complete. The scraper plate 81 is only used to remove the fertilizer powder attached to the surface of the extrusion roller 22 except the hemispherical hole before the two extrusion rollers 22 extrude the plate-like block, so as to prevent the two extrusion rollers 22 from over-extruding the fertilizer powder and affecting the dissolution rate of the fertilizer particles.

[0040] Working process: when the fertilizer powder enters the material guide shell 21, most of the fertilizer powder enters between the two squeezing rollers 22, and a small amount of fertilizer powder enters the round roller 61 and the adjacent squeezing roller 22. When the control panel turns on the power source, the two squeezing rollers 22 rotate in opposite directions through the gear set, and the squeezing rollers 22 synchronously drive the adjacent round rollers 61 to rotate in opposite directions through the gears. The round roller 61 presses the fertilizer powder into the hemispherical hole of the squeezing roller 22. At the same time, part of the fertilizer powder adheres to the surface of the squeezing roller 22. The scraper plate 81 removes the fertilizer powder adhered to the surface of the squeezing roller 22. Only the hemispherical hole on the squeezing roller 22 remains with fertilizer powder. After that, the two squeezing rollers 22 squeeze the fertilizer powder between them to form a plate-like block with a hemispherical protrusion, and continue the above-mentioned bending and crushing operation. During the rotation of the squeezing roller 22, the squeezing roller 22 pushes the sliding curved rod 71 forward through the gear, and the sliding curved rod 71 moves forward and stretches the connected tension spring. As the squeezing roller 22 rotates, when the squeezing roller 22 rotates, the upper gear loses contact with the sliding curved rod 71, and the sliding curved rod 71 moves backward under the tension of the connected tension spring. The fixed support rod 72 on the sliding curved rod 71 hits the partition plate 62, causing the partition plate 62 to vibrate, and the fertilizer powder in the auxiliary limit pin 42 enters the two squeezing rollers 22 and between the squeezing roller 22 and the round roller 61. The gear on the squeezing roller 22 continuously pushes the sliding curved rod 71 during the rotation process, and the partition plate 62 continues to vibrate. The above-mentioned operation of pre-filling the upper hemispherical hole of the squeezing roller 22 with fertilizer powder is repeated until the preparation of all fertilizer particles is completed.

[0041] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A granulation device for compound fertilizer production, characterized in that, Including: An installation shell (1), a discharge plate (2) is arranged at the lower part of the installation shell (1); A sliding plate (3), which is slidably connected inside the installation shell (1). A sliding support plate (4) is slidably connected to the sliding plate (3). A fixed frame (5) is fixedly connected to the sliding plate (3). A fixed bent plate (6) is fixedly connected to the sliding support plate (4). A plurality of sliding frames (7) are slidably connected to both the fixed frame (5) and the fixed bent plate (6). The sliding frames (7) on the fixed frame (5) correspond to the sliding frames (7) on the fixed bent plate (6) one by one; Two elastic plates (8), which are respectively fixedly connected to the fixed frame (5) and the fixed bent plate (6). All the sliding frames (7) are fixedly connected to the adjacent elastic plates (8). The two elastic plates (8) are bent in a wavy shape by the staggered movement of the plurality of sliding frames (7); Two guide plates (9), which are respectively fixedly connected to the upper parts of the corresponding elastic plates (8). The two guide plates (9) are respectively fixed by the fixed frame (5) and the fixed bent plate (6); An extrusion mechanism, which is arranged on the installation shell (1) and is used for extruding fertilizer powder into plate-shaped blocks with particles; A crushing mechanism, which is arranged on the fixed frame (5) and the fixed bent plate (6) and is used for controlling the staggered movement of the plurality of sliding frames (7).

2. The granulating device for compound fertilizer production according to claim 1, characterized in that, The extrusion mechanism includes: A material guide shell (21), which is fixedly connected to the installation shell (1) and is used for temporarily storing fertilizer powder and guiding it into the installation shell (1); Two extrusion rollers (22), which are rotatably connected to the upper part of the installation shell (1). A plurality of hemispherical holes are arranged on the surface of the extrusion roller (22). The two extrusion rollers (22) are driven by a gear set. A power source is arranged at one side of the extrusion roller (22).

3. The granulation device for compound fertilizer production according to claim 2, characterized in that, The distance between the upper ends of the two guide plates (9) is greater than the distance between the axes of the two extrusion rollers (22). The upper end of the guide plate (9) is in contact with the adjacent extrusion roller (22) and is used for enabling all the plate-shaped blocks with particles formed by the extrusion of the two extrusion rollers (22) to enter between the two elastic plates (8).

4. A granulating device for compound fertilizer production according to claim 3, characterized in that, Both sides of the two elastic plates (8) are attached to the installation shell (1), so as to form a wavy channel between the two elastic plates (8). The overall shape of the two elastic plates (8) is bent in a wavy shape and is used for prolonging the moving time of the plate-shaped blocks formed by the extrusion of the two extrusion rollers (22) between the two elastic plates (8).

5. The granulating device for compound fertilizer production according to claim 4, characterized in that, The crushing mechanism includes: Four motors (31), which are respectively arranged on the fixed frame (5) and the fixed bent plate (6). Two rotating shafts (32) are rotatably connected to both the fixed frame (5) and the fixed bent plate (6). The rotating shaft (32) is fixedly connected to the output shaft of the adjacent motor (31). A plurality of eccentric discs (33) are fixedly connected to the rotating shaft (32). The number of the eccentric discs (33) is the same as the number of the sliding frames (7). The eccentric discs (33) are used for pushing the sliding frames (7) to move reciprocally; An anti-blocking component is arranged on the mounting shell (1) and is used to determine whether blockage occurs based on the weight of the fertilizer between the two elastic plates (8).

6. The granulation device for compound fertilizer production according to claim 5, characterized in that, The anti-blocking component comprises: A first telescopic rod (41) is fixedly connected in the mounting shell (1); a telescopic end of the first telescopic rod (41) is fixedly connected to the sliding plate (3); and a first spring is fixedly connected between the sliding plate (3) and the mounting shell (1); A limit pin (42) is slidably connected in the mounting shell (1); a second spring is fixedly connected between the limit pin (42) and the mounting shell (1); a blind hole is provided on the sliding plate (3); the limit pin (42) limits the movement of the sliding plate (3) through the blind hole of the sliding plate (3); and the weight of the fertilizer between the two elastic plates (8) is judged according to the state of the sliding plate (3).

7. A granulation device for compound fertilizer production according to claim 6, characterized in that, The anti-blocking component also includes: A second telescopic rod (51) is fixedly connected to the sliding plate (3), and a telescopic end of the second telescopic rod (51) is fixedly connected to the sliding support plate (4). The second telescopic rod (51) is used to drive the fixed bent plate (6) to move through the sliding support plate (4) to expand the gap between the two elastic plates (8); a liquid guide tube (52) is connected to the second telescopic rod (51), and the liquid guide tube (52) penetrates the sliding plate (3). The liquid guide tube (52) is connected to the first telescopic rod (41), and hydraulic oil is filled in the first telescopic rod (41) and the second telescopic rod (51).

8. A granulating device for compound fertilizer production according to claim 6, characterized in that it also include: A pre-filling mechanism is arranged on the upper part of the mounting shell (1) and is used for pre-filling fertilizer powder into the hemispherical hole of the squeezing roller (22), and the pre-filling mechanism comprises: Two round rollers (61) are both rotatably connected to the upper part of the mounting shell (1), and the round rollers (61) and the adjacent squeezing rollers (22) are driven by gears; Two partition plates (62) are both arranged in the material guide shell (21), and the partition plates (62) are in contact with the adjacent round rollers (61); A vibration component is arranged on the material guide shell (21) and is used to assist in conveying the fertilizer powder in the material guide shell (21) downward by vibration.

9. The granulation device for compound fertilizer production according to claim 8, characterized in that, The vibration assembly comprises: A sliding curved rod (71) is connected to the material guide shell (21) in a limited sliding manner, a tension spring is fixedly connected between the sliding curved rod (71) and the material guide shell (21), and the round roller (61) on one side drives the sliding curved rod (71) to move through a gear; A plurality of fixed support rods (72) are all fixedly connected to the sliding curved rod (71), and the fixed support rods (72) are used to impact the partition plate (62) to cause the partition plate (62) to vibrate.

10. A granulating device for compound fertilizer production according to claim 8, characterized in that, The vibration assembly also includes: Two scraping plates (81) are both arranged on the upper part of the mounting shell (1), and the scraping plates (81) are used to scrape off fertilizer adhered to the surface of the squeezing roller (22) except for the hemispherical holes of the pre-filler.

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