Chemical fertilizer particle treatment equipment

Abstract

The chemical fertilizer particle treatment equipment comprises an upper-inlet lower-outlet outer cylinder, and the outer side of the outer cylinder is connected with a rotary driving mechanism; a conical hopper is arranged on the inner side of the outer barrel, at least one material disc is arranged above the conical hopper, the material disc is of a bamboo-hat-shaped structure with the middle protruding, the protruding area is a flange part, a flat plate part is arranged on the periphery of the flange part, a baffle is arranged on the periphery of the flat plate part, a bearing ring is movably connected to the bottom of the baffle, and the outer side end of the bearing ring is fixedly connected with the inner wall of the outer barrel. Material holes are uniformly distributed in the flange part and the flat plate part; a material arranging mechanism is arranged on the inner wall of the outer cylinder, the material arranging mechanism comprises a pressing plate capable of moving longitudinally, shovel plates are arranged at the position, located on the rear side of the pressing plate, of the material arranging mechanism at intervals, and the pressing plate and the shovel plates can press and smash the chemical fertilizer particles on the flat plate part in the process of rotating along with the outer cylinder. The problems that some existing equipment adopts a single driving mode of positive pressure blowing, material blocking is prone to occurring, and chemical fertilizer particles are excessively abraded and refined are solved.

Description

Technical Field

[0001] This invention relates to the field of fertilizer granule processing technology, and in particular to a processing device for breaking up clumps of fertilizer granules. Background Technology

[0002] Chemical fertilizers are essential nutrients for the growth and development of any plant, whether natural or synthetic. Approximately 30% to 50% of increased crop yields are attributed to commercially available fertilizers, whether natural or inorganically synthesized. There are numerous types and brands of fertilizers on the market, which can be categorized into inorganic and organic fertilizers based on their composition. Some fertilizers are typically applied directly to the soil. These types of fertilizers are usually granulated. However, fertilizer granules processed using granulators often clump together due to factors such as temperature and humidity, resulting in uneven particle shapes. This affects subsequent packaging and the melting and absorption efficiency during application.

[0003] In the prior art, Chinese patent CN113578479B discloses a fertilizer granule processing machine, relating to the field of granulated fertilizer processing. This fertilizer granule processing machine includes a support cylinder and a processing cylinder. The processing cylinder is located above the support cylinder, with its lower end rotatably inserted into the upper end of the support cylinder. A toothed ring is provided above the support cylinder and is fixedly sleeved on the outer surface of the processing cylinder. A material hopper is fixedly connected to the bottom surface of the support cylinder. A vent pipe is provided inside the support cylinder, with its right end fixedly penetrating the inner wall of the material hopper, and its upper end rotatably penetrating the bottom surface of the processing cylinder. A sealing cover is provided above the processing cylinder.

[0004] However, this technology, which uses positive pressure air blowing to drive the movement and screening of fertilizer granules, has significant drawbacks. In actual operation, due to the varying sizes of fertilizer granules, some larger granules easily clog the perforations on the processing cylinder. Once the perforations are blocked, the sealing plate at that location cannot open effectively, preventing fertilizer granules meeting the threshold size requirements from being discharged in a timely manner. These granules undergo excessive friction and refinement within the processing cylinder, resulting in a large amount of additional powder waste. This not only wastes raw materials and increases production costs, but excessive powder waste also affects the quality and effectiveness of the fertilizer, potentially leading to uneven fertilization and reduced soil aeration. Summary of the Invention

[0005] This invention provides a fertilizer granule processing device, which helps to solve the problems of material blockage and excessive wear and refinement of fertilizer granules that occur in some existing devices that use a single positive pressure blowing method.

[0006] This invention is implemented as follows:

[0007] A fertilizer granule processing device includes an outer cylinder vertically aligned with its axial centerline. A feed pipe is located at the top of the outer cylinder, and a support is movably connected to the bottom of the outer cylinder. A rotary drive mechanism is connected to the outer side of the outer cylinder, capable of driving the outer cylinder to rotate around its axial centerline. A support frame is connected to the bottom of the support frame, and a conical hopper with a top opening is connected to the radially inner side of the bottom of the outer cylinder. A feed pipe is located at the bottom of the conical hopper, and a gap is formed between the radially outer periphery of the conical hopper and the inner wall of the outer cylinder. At least one material tray is located above the conical hopper. The material tray has a conical structure with a raised center, the raised area being a flange. A horizontal flat plate is located around the flange, and a baffle is located around the flat plate. A support ring is movably connected to the bottom, and the outer end of the support ring is fixedly connected to the inner wall of the outer cylinder. The outer wall of the baffle and the inner wall of the outer cylinder form a sliding contact relationship. The flange and the flat plate are evenly distributed with longitudinal through holes. The inner wall of the outer cylinder is equipped with a material feeding mechanism located on the flat plate. The material feeding mechanism includes a longitudinally movable pressure plate. The pressure plate and the flat plate form a squeezing and dispersing gap. The pressure plate is equipped with an inclined guide plate structure with a higher front and lower rear on the front side of the pressure plate following the rotation direction of the outer cylinder. The material feeding mechanism is also equipped with inclined plate shovels at intervals on the rear side of the pressure plate. The pressure plate and shovels can press and tamp the fertilizer granules on the flat plate during the rotation of the outer cylinder.

[0008] Based on the above technical solution, several material handling mechanisms are longitudinally spaced.

[0009] Based on the above technical solution, the flange is located directly below the feed pipe.

[0010] Based on the above technical solution, several material handling mechanisms are arranged symmetrically on the inner wall of the outer cylinder.

[0011] Based on the above technical solution, the material handling mechanism includes a fixed block, the outer end of which is fixedly connected to the inner wall of the outer cylinder, a pressure rod is vertically inserted on the fixed block, the pressure rod can slide longitudinally relative to the fixed block, the pressure plate is connected to the bottom of the pressure rod, the pressure rod is threadedly connected to the adjusting nut above the fixed block, a pressure spring is abutted between the bottom of the adjusting nut and the top of the fixed block, and the pressure spring is sleeved on the pressure rod.

[0012] Based on the above technical solution, the bottom of the pressure plate is provided with a downwardly raised tamping block.

[0013] Based on the above technical solution, an extension plate is provided on one side of the fixed block, and a vertical connecting rod is connected to the extension plate. The shovel plate is located at the bottom of the connecting rod, and a longitudinal position adjustment structure is provided at the connection between the connecting rod and the extension plate.

[0014] Based on the above technical solution, the top of the flat plate is provided with a number of spaced lifting blocks. The lifting blocks are located directly below the rotation path of the pressure plate. The lifting blocks can abut against the bottom of the pressure plate during the rotation of the pressure plate and raise the height of the pressure plate.

[0015] Based on the above technical solution, an air blowing mechanism is also provided at the bottom of the material tray adjacent to the cone bucket. The air blowing mechanism includes an air supply pipe inserted at intervals inside the feeding pipe. The distance between the outer wall of the air supply pipe and the inner wall of the feeding pipe is greater than the threshold output specification of the fertilizer granules. The input end of the air supply pipe is connected to an external positive pressure fan. An air jet pipe is connected to the top of the air supply pipe. Several air jet holes are provided on the side of the air jet pipe near the material tray.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] 1. This invention abandons the single driving method of positive pressure blowing used in existing technologies, reducing its uncontrollability. This invention uses the rotation of the outer cylinder to drive the material handling mechanism and the material tray to rotate relative to each other. During this process, the pressing action of the pressure plate and the tamping action of the shovel effectively squeeze, disperse, agitate, and turn over the large fertilizer granules on the material tray. Furthermore, the pressing action, combined with the screening mechanism of the material holes, achieves efficient decomposition, dispersion, and homogenization of the fertilizer granules. Compared to some existing technologies, this method effectively avoids the problem of large fertilizer granules clogging the material holes, preventing the sealing plate from opening effectively. It also avoids excessive friction and refinement of fertilizer granules within the processing cylinder, resulting in a large amount of extra powder waste, thus improving the quality of fertilizer granules and production efficiency.

[0018] 2. In this invention, the outer cylinder is the main moving part, and the built-in material tray and cone bucket are the stable supporting structures. By using the overall top-in and bottom-out material feeding method, continuous operation can be carried out. Compared with the traditional method that can only be carried out in batches and intermittently, the processing efficiency can be greatly improved.

[0019] 3. Water flows from the branch pipe to the distribution pipe. After passing through the bend, the direction of water flow changes, and an imbalance easily occurs between the inner and outer sides of the bend. The water velocity is higher on the outer side of the bend and lower on the inner side, leading to turbulence. By installing a tapered pipe with a gradually widening structure at the bottom of the bend, based on the fluid adhesion effect and fluid mechanics principles, the water flowing out of the bend will flow along the tapered pipe. The tapered pipe not only reduces flow resistance but also restores the uniformity of water flow, reducing the impact and imbalance on the pressure stabilizing plate, thus improving the pressure equalization and flow stabilization effect. Finally, the distribution plate further ensures a more uniform distribution of water flow in the distribution pipe output area, effectively improving the water distribution uniformity of the water distributor and ensuring the water distribution effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a fertilizer granule processing device in one embodiment;

[0022] Figure 2 for Figure 1 Longitudinal sectional view;

[0023] Figure 3 for Figure 1 An oblique sectional view;

[0024] Figure 4 for Figure 2 A three-dimensional structural diagram of the feed tray;

[0025] Figure 5 for Figure 4 Schematic diagram of the material handling mechanism;

[0026] Figure 6 This is a schematic diagram of the pressing state of the pressure plate in one embodiment;

[0027] Figure 7 for Figure 5 A simplified diagram of the bottom structure of the intermediate pressure plate;

[0028] Figure 8 This is a partial structural diagram showing the installation state of the lifting block in one embodiment;

[0029] Figure 9 This is a longitudinal sectional view of the fertilizer granule processing equipment in another embodiment;

[0030] Figure 10 for Figure 9 Top view of the air blowing mechanism.

[0031] The diagram is labeled as follows: 1. Outer cylinder; 110. Feed pipe; 120. Gear ring; 130. Support; 200. Support frame; 300. Conical hopper; 310. Discharge pipe; 400. Material tray; 410. Flange; 420. Flat plate; 421. Lifting block; 4211. Connecting part; 430. Material hole; 440. Baffle; 450. Support ring; 500. Material handling mechanism; 510. Fixed part. 520. Fixed block; 530. Pressure rod; 531. Pressure spring; 540. Adjusting nut; 541. Pressure plate; 550. Tamping block; 550. Extension plate; 551. Connecting part; 552. Locking bolt; 560. Connecting rod; 570. Shovel plate; 571. Shovel end; 572. Drop end; 600. Air blowing mechanism; 610. Air supply pipe; 621. Air jet pipe; 622. Air jet hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0033] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Example 1: Combination Figure 1-7As shown in the figure, this embodiment discloses a fertilizer granule processing device, which aims to solve the problems of material blockage and excessive wear and refinement of fertilizer granules that arise from the single positive pressure blowing method used in some existing devices. The device of this invention can more effectively break up clumps of fertilizer granules while avoiding excessive wear, thereby improving the quality of fertilizer granules and production efficiency.

[0037] Specifically, in combination Figure 1 and Figure 2 As shown, the fertilizer granule processing equipment includes an outer cylinder 1 vertically arranged along its axial centerline. A feed pipe 110 is located at the top of the outer cylinder 1, facilitating the introduction of fertilizer granules into the equipment. The feed speed and quantity can be adjusted according to production needs, and it can also be used in conjunction with an external feeding device. A support 130 is movably connected to the bottom of the outer cylinder 1. The support 130 is a horizontally arranged annular structure. While the figure is simplified, a sliding connection, such as a bearing or ball bearing track, is actually configured between the support 130 and the outer cylinder 1, allowing for smooth relative rotation. A rotary drive mechanism is connected to the outside of the outer cylinder 1, driving it to rotate around its axial centerline, enabling the fertilizer granules inside the equipment to undergo various processing operations under the rotation of the outer cylinder 1. The rotary drive mechanism in this embodiment includes a gear ring 120 fixed to the outer wall of the outer cylinder 1. A gear is meshed with the outer side of the gear ring 120, and the gear is connected to a reduction motor. The reduction motor and gear are not shown in the figure. This is prior art, and its specific structure and working principle will not be described in detail here. Those skilled in the art can select and implement it from the prior art according to the actual operation. Reasonable control of the rotation speed is crucial to the processing effect of fertilizer granules. Too fast a rotation speed may lead to insufficient processing of fertilizer granules, while too slow a rotation speed will affect production efficiency.

[0038] To provide stable support, the bottom of the support 130 is connected to a support frame 200. The support frame 200 not only serves to support the load, but also raises the equipment to make room for material unloading at the bottom.

[0039] A support frame 200 is located radially inner to the bottom of the outer cylinder 1 and connected to a conical hopper 300 with a top opening. A discharge pipe 310 is installed at the bottom of the conical hopper 300 to discharge the processed fertilizer granules from the equipment. The diameter and shape of the discharge pipe 310 can be designed according to production requirements to ensure smooth discharge of the fertilizer granules while avoiding blockage. A gap is provided between the radial periphery of the conical hopper 300 and the inner wall of the outer cylinder 1. This gap is designed to prevent structural interference between the outer cylinder 1 and the conical hopper 300, allowing the outer cylinder 1 to rotate stably.

[0040] At least one material tray 400 is provided above the cone hopper 300. In this embodiment, there are two material trays 400. The main function of the material trays 400 is to support and screen fertilizer granules according to threshold specifications. Figure 2 , Figure 3 and Figure 4 As shown, the material tray 400 has a conical, raised structure, with the raised area being the flange 410. The top of the flange 410 is smooth and located directly below the feed pipe 110. This allows the fertilizer granules to be processed to fall directly onto the flange 410 after entering the equipment. Because the flange 410 is higher in the middle and lower at the periphery, it forms a uniform material structure, allowing the fertilizer granules to naturally and evenly distribute themselves during the fall. This structural design enables the fertilizer granules to naturally disperse in all directions after entering the material tray 400, providing a good foundation for subsequent pressing and compaction. A horizontal flat plate 420 is provided around the flange 410, with the upper part of the flat plate 420 serving as the main processing area. A baffle 440 is provided around the flat plate 420, perpendicular to the flat plate 420. The baffle 440 serves as a partition structure around the material tray 400, preventing fertilizer granules from falling and clogging the gap between the material tray 400 and the outer cylinder 1. A support ring 450 is movably connected to the bottom of the baffle 440, with its outer end fixedly connected to the inner wall of the outer cylinder 1. The main function of the support ring 450 is to support the material tray 400. It should be noted that the support ring 450 will rotate relative to the material tray 400 during operation. The outer wall of the baffle 440 and the inner wall of the outer cylinder 1 form a sliding contact relationship, meaning that a limiting structure exists between the outer wall of the baffle 440 and the inner wall of the outer cylinder 1. This helps stabilize the relative position of the outer cylinder 1 and the material tray 400 during rotation.

[0041] Both the flange portion 410 and the flat plate portion 420 have longitudinally through-holes 430 evenly distributed. During processing within the equipment, fertilizer granules pass through these holes 430 for screening and flow. The diameter and distribution density of the holes 430 need to be precisely designed according to the specifications of the fertilizer granules and the processing requirements. If the diameter of the holes 430 is too large, some fertilizer granules that do not meet the specifications may be discharged prematurely, affecting the processing effect; if the diameter of the holes 430 is too small, fertilizer granules may clog the holes 430, reducing processing efficiency.

[0042] A material handling mechanism 500 is installed on the inner wall of the outer cylinder 1, located on the flat plate section 420. The material handling mechanism 500 includes a longitudinally movable pressure plate 540. The pressure plate 540 and the flat plate section 420 form a compression and dispersing gap, which is the main area for dispersing fertilizer granules. The pressure plate 540 has an inclined guide plate structure (higher at the front and lower at the back) on its front side, following the rotation direction of the outer cylinder 1. This structure guides the fertilizer granules into the compression and dispersing gap. In actual operation, as the pressure plate 540 rotates, larger fertilizer granules, guided by this structure, enter the gap and are subjected to greater compression, thus achieving the dispersing effect. Once the fertilizer granules enter the gap, the pressure plate 540 applies pressure, causing them to squeeze and rub against each other, thereby achieving the purpose of dispersing. The material handling mechanism 500 is located behind the pressure plate 540 and is also equipped with inclined plate shovels 570 at intervals. The function of the shovels 570 is to further compact the remaining fertilizer granules on the flat plate 420 after the pressure plate 540 has processed them, ensuring that all clumps of fertilizer granules are effectively processed. In the specific implementation process, as the pressure plate 540 and shovels 570 rotate with the outer cylinder 1, they can press and compact the fertilizer granules on the flat plate 420, thereby breaking up the fertilizer granules.

[0043] In this embodiment, as Figure 4 As shown, the three material handling mechanisms 500 are centrally symmetrically arranged on the inner wall of the outer cylinder 1, and can simultaneously perform material pressing and tamping actions as they rotate with the outer cylinder 1, thereby improving processing efficiency.

[0044] like Figure 5 As shown, the material handling mechanism 500 includes a fixed block 510, the outer end of which is fixedly connected to the inner wall of the outer cylinder 1, allowing the material handling mechanism 500 to rotate synchronously with the outer cylinder 1. The fixed block 510 has an insertion hole into which a pressure rod 520 is vertically inserted. The outer contour of the pressure rod 520 fits against the inner contour of the insertion hole, allowing the pressure rod 520 to slide longitudinally relative to the fixed block 510. A pressure plate 540 is connected to the bottom of the pressure rod 520. An adjusting nut 531 is threaded onto the pressure rod 520 above the fixed block 510. A pressure spring 530 abuts against the bottom of the adjusting nut 531 and the top of the fixed block 510, and is sleeved on the pressure rod 520. By rotating the adjusting nut 531, the compression degree of the pressure spring 530 can be changed, thereby adjusting the pressure of the pressure plate 540 on the flat plate portion 420 to accommodate fertilizer granules of different specifications and processing requirements. This design gives the equipment a certain degree of flexibility and adaptability, allowing it to be adjusted according to actual conditions and improve processing efficiency.

[0045] In addition, the bottom of the pressure plate 540 is provided with a downwardly raised tamping block 541, such as Figure 6 and Figure 7As shown. The tamping block 541 can increase the contact area and force between the pressure plate 540 and the fertilizer granules, further improving the dispersing effect. It also helps to form a safe distance between the pressure plate 540 and the flat plate 420 by means of the raised structure of the tamping block 541, avoiding excessive compression of fertilizer granules over a large area, so as to reduce unnecessary additional losses.

[0046] An extension plate 550 is provided on one side of the fixing block 510. A connecting part 551 is provided on the end of the extension plate 550 away from the fixing block 510. The connecting part 551 is a horizontally placed "L"-shaped structure. A vertical connecting rod 560 is connected to its inner cavity. The connecting rod 560 is fixed by a locking bolt 552 threaded on the side wall of the connecting part 551. This structure is conducive to flexibly adjusting the installation height of the shovel plate 570. This constitutes a longitudinal position adjustment structure at the connection between the connecting rod 560 and the extension plate 550, which can change the distance between the shovel plate 570 and the flat plate 420, thereby adapting to the tamping requirements under different conditions. The shovel plate 570 is located at the bottom of the connecting rod 560. Its front end is lower than its rear end. The front end is a shovel end 571 that fits against the upper surface of the flat part, and the rear end is a drop end 572. The overall top profile is a sloped structure from bottom to top. When it rotates with the outer cylinder 1, the shovel end 571 can shovel the fertilizer granules that have just been squeezed and broken up, and use the slope to lift them up until they fall back to the top area of ​​the flat part at the drop end 572 at the high position. In this process, the material can be effectively tamped and mixed, so that the fertilizer granules are continuously stirred evenly, avoiding the phenomenon of large particles accumulating in dead corners.

[0047] In the specific implementation process, the fertilizer granules to be processed are continuously fed into the equipment through the feed pipe 110 by an external feeding and lifting machine at a threshold speed. After entering the equipment, the fertilizer granules naturally fall onto the flange 410 of the upper material tray 400, where they undergo initial homogenization and diversion to the area above the flat section. The material handling mechanism 500 rotates with the outer cylinder 1. During the rotation, the pressure plate 540 and the shovel plate 570 can press and tamp the fertilizer granules on the flat section 420, thereby breaking up the fertilizer granules. During this process, the threshold is met. Fertilizer granules of a specified size (i.e. smaller than the inner diameter of the feed hole 430) will pass through the feed hole 430 on their own or under the pressure of the pressure plate 540 and fall onto the second feed tray 400 below for a second dispersion and homogenization process. This multi-layered structure allows for a larger inner diameter of the upper feed hole 430 and a smaller inner diameter of the lower feed hole 430, thus improving processing efficiency. Finally, the fertilizer granules fall into the inner side of the cone hopper 300, are guided and collected, and then output through the discharge pipe 310 for collection by the external material box.

[0048] Example 2: Based on Example 1, combined with Figure 8As shown in this embodiment, the top of the flat plate 420 is provided with a plurality of spaced-apart lifting blocks 421. A connecting portion 4211 is provided on one side of each lifting block 421. The connecting portion 4211 has a smooth inclined surface structure, which facilitates a smooth lifting effect in conjunction with the rotational movement of the pressure plate 540. The lifting block 421 is located directly below the rotational path of the pressure plate 540. During the rotation of the pressure plate 540, the lifting block 421 can abut against the bottom of the pressure plate 540, raising its height. This design allows the pressure plate 540 to move up and down during rotation, further enhancing the dispersing effect on the fertilizer granules. It also prevents excessive compression between the pressure plate 540 and the flat plate 420 over a prolonged period, thus avoiding excessive wear of the fertilizer granules.

[0049] Example 3: Based on Example 1, combined with Figure 9 and Figure 10 As shown, in this embodiment, an air blowing mechanism 600 is also provided at the bottom of the material tray 400 adjacent to the cone hopper 300. The air blowing mechanism 600 includes air supply pipes 610 spaced apart and inserted inside the discharge pipe 310. The distance between the outer wall of the air supply pipe 610 and the inner wall of the discharge pipe 310 is greater than the threshold output specification of the fertilizer particles, which ensures that fertilizer particles meeting the specification can be discharged smoothly through the distance. The input end of the air supply pipe 610 is connected to an external positive pressure fan, and the top of the air supply pipe 610 is connected to a jet pipe 620. The jet pipe 620 has several jet holes 621 on the side near the material tray 400. The jet nozzle 621 can evenly spray airflow from bottom to top onto the material tray 400. Combined with intermittent start-up or pulse blowing, the material hole 430 can be effectively back-blown, reducing the phenomenon of fertilizer particles clogging the material hole 430. In addition, it can clean the powder and debris adhering to the surface of the structure, and can clean the material tray 400 to a certain extent, preventing fertilizer particles from remaining on the material tray 400.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fertilizer granule processing device, characterized in that, It includes an outer cylinder (1) with its axial center line vertically arranged, a feed pipe (110) is provided at the top of the outer cylinder (1), a support (130) is movably connected to the bottom of the outer cylinder (1), and a rotary drive mechanism is connected to the outside of the outer cylinder (1). The rotary drive mechanism can drive the outer cylinder (1) to rotate around its axial center line. The support (130) is connected to a support frame (200) at the bottom. The support frame (200) is located on the radial inner side of the bottom of the outer cylinder (1) and connected to a cone hopper (300) with a top opening. A feed pipe (310) is provided at the bottom of the cone hopper (300). The radial outer periphery of the cone hopper (300) is separated from the inner wall of the outer cylinder (1). At least one material tray (400) is provided above the cone hopper (300). The material tray (400) is a hat-shaped structure with a raised middle. The raised area is a flange (410). A horizontal flat plate (420) is provided around the flange (410). A baffle (440) is provided around the flat plate (420). A support ring (450) is movably connected to the bottom of the baffle (440). The outer end of the support ring (450) is fixedly connected to the inner wall of the outer cylinder (1). The outer wall of the baffle (440) and the inner wall of the outer cylinder (1) form a sliding fit relationship. The flange (410) and the flat plate (420) are evenly distributed with longitudinal through holes (430). The inner wall of the outer cylinder (1) is provided with a material handling mechanism (500) on the flat plate part (420). The material handling mechanism (500) includes a pressure plate (540) that can move longitudinally. The pressure plate (540) and the flat plate part (420) form a squeezing and dispersing gap. The pressure plate (540) is provided with an inclined guide plate structure that is higher in the front and lower in the back on the front side following the rotation direction of the outer cylinder (1). The material handling mechanism (500) is also provided with shovels (570) with inclined plate structures at intervals on the rear side of the pressure plate (540). The pressure plate (540) and the shovels (570) can press and tamp the fertilizer particles on the flat plate part (420) during the rotation of the outer cylinder (1).

2. The fertilizer granule processing equipment according to claim 1, characterized in that, Several material handling mechanisms (500) are longitudinally spaced.

3. The fertilizer granule processing equipment according to claim 1, characterized in that, The flange (410) is located directly below the feed pipe (110).

4. The fertilizer granule processing equipment according to claim 1, characterized in that, Several material handling mechanisms (500) are arranged symmetrically on the inner wall of the outer cylinder (1).

5. A fertilizer granule processing device according to claim 1 or 4, characterized in that, The material handling mechanism (500) includes a fixed block (510), the outer end of which is fixedly connected to the inner wall of the outer cylinder (1). A pressure rod (520) is vertically inserted on the fixed block (510). The pressure rod (520) can slide longitudinally relative to the fixed block (510). The pressure plate (540) is connected to the bottom of the pressure rod (520). An adjusting nut (531) is threadedly connected above the fixed block (510) on the pressure rod (520). A pressure spring (530) abuts between the bottom of the adjusting nut (531) and the top of the fixed block (510). The pressure spring (530) is sleeved on the pressure rod (520).

6. The fertilizer granule processing equipment according to claim 5, characterized in that, The bottom of the pressure plate (540) is provided with a downwardly raised tamping block (541).

7. The fertilizer granule processing equipment according to claim 5, characterized in that, An extension plate (550) is provided on one side of the fixed block (510), and a vertical connecting rod (560) is connected to the extension plate (550). The shovel plate (570) is located at the bottom of the connecting rod (560), and a longitudinal position adjustment structure is provided at the connection between the connecting rod (560) and the extension plate (550).

8. The fertilizer granule processing equipment according to claim 1, characterized in that, The top of the plate (420) is provided with a number of spaced lifting blocks (421). The lifting blocks (421) are located directly below the rotation path of the pressure plate (540). The lifting blocks (421) can abut against the bottom of the pressure plate (540) during the rotation of the pressure plate (540) and raise the height of the pressure plate (540).

9. The fertilizer granule processing equipment according to claim 1, characterized in that, The bottom of the material tray (400) adjacent to the cone hopper (300) is also provided with an air blowing mechanism (600). The air blowing mechanism (600) includes an air supply pipe (610) inserted at intervals inside the feed pipe (310). The distance between the outer wall of the air supply pipe (610) and the inner wall of the feed pipe (310) is greater than the threshold output specification of the fertilizer granules. The input end of the air supply pipe (610) is connected to an external positive pressure fan. The top of the air supply pipe (610) is connected to a jet pipe (620). The jet pipe (620) has several jet holes (621) on the side near the material tray (400).

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