Homogenizing cooling device for chelate fertilizer production

Abstract

The utility model provides a kind of homogenization cooling device for chelate fertilizer production, it is related to chelate fertilizer production device technical field, it includes fixedly arranged shell, shell top and bottom are separately provided with feed inlet and discharge outlet, discharge outlet is provided with bottom cover, still include a pair of crushed material roller rotationally arranged in shell, shell outer wall is fixedly provided with the drive source that can drive two crushed material rollers rotation, still include cooling channel fixedly arranged below crushed material roller, the opposite sides of cooling channel side wall are provided with several air injection holes, air injection hole is communicated with fan fixedly arranged in shell outer wall, cooling channel top side is fixedly provided with air outlet;It is preliminarily mechanically broken to material by crushed material roller, and lump that possibly forms is scattered;Cooling airflow is injected by the air injection hole of cooling channel two sides, realizes the rapid and uniform heat exchange;Material is blown apart by airflow and gravity beating action, so that material is efficiently homogenized, and finished fertilizer chelate quality is significantly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chelated fertilizer production equipment, and in particular to a homogenizing cooling device for chelated fertilizer production. Background Technology

[0002] Chelated fertilizer, as a highly efficient nutrient supplement in agricultural production, plays a core role in encapsulating essential micronutrients in plants through organic chelating agents, forming stable and easily absorbed water-soluble complexes. This effectively prevents these nutrients from being fixed and ineffective in the soil, significantly improving crop absorption and utilization rates, and achieving the goals of precision fertilization and increased yield and quality.

[0003] The current chelated fertilizer production process mainly includes the crushing, batching, mixing, reaction of solid materials, as well as subsequent granulation and drying. In the key mixing and preliminary reaction processes, existing technologies generally use high-speed mixers or shear mixers, which rely on rotating blades to perform strong shearing and impact on the materials to achieve mixing. However, mechanical stirring generates heat, and the chelation reaction itself also releases heat. This leads to local overheating of the materials in the mixing chamber, and premature melting, clumping, or even coking of the chelating agent in some areas.

[0004] To control temperature, existing technologies typically wrap the outside of the mixing cylinder with a jacket and circulate cooling water for indirect cooling. While this static cooling method, which cools from the outside in, can exchange heat with the material near the edge, it cannot effectively and quickly remove heat from the central area of ​​the mixing chamber. This results in the material facing the risk of premature decomposition and failure of the chelating agent due to overheating during the mixing stage, as well as the softening and adhesion of some low-melting-point raw materials. This not only seriously affects the uniformity of subsequent granulation but also ultimately affects the chelation quality of the finished fertilizer. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a homogenizing cooling device for chelated fertilizer production, which solves the problem that existing technologies cannot quickly remove heat from the mixing center area, thus affecting the chelation quality of the finished fertilizer.

[0006] According to an embodiment of this utility model, a homogenizing cooling device for chelated fertilizer production includes a fixedly disposed shell, with an inlet and an outlet respectively provided at the top and bottom of the shell, and a bottom cover provided at the outlet, and further includes: The homogenizing mechanism is fixedly installed inside the housing and includes a pair of crushing rollers arranged in parallel and rotating. A drive source capable of driving the two crushing rollers to rotate is fixedly installed on the outer wall of the housing. The cooling mechanism is fixedly installed directly below the crushing roller. It includes a cooling channel with several air jet holes arranged opposite each other on the two side walls of the cooling channel. The air jet holes are connected to a fan fixedly installed on the outer wall of the housing. An air outlet is fixedly installed on one side of the top of the cooling channel.

[0007] The technical principle of this utility model is as follows: fertilizer material falls from the feed inlet into the space between counter-rotating crushing rollers, where it is initially crushed and dispersed by the roller surface to form loose small particles. These particles then fall naturally into the cooling channel below in a waterfall-like curtain. During this process, jet holes on both sides of the cooling channel simultaneously spray out high-speed cooling airflow. The cold air directly penetrates the falling material layer, quickly carrying away the heat it carries, and strongly blowing and disturbing the material, causing it to tumble and further homogenize in the airflow. The material continues to fall under the action of gravity and impacts the subsequent material layer or the bottom of the channel, and then falls out through the discharge port, achieving secondary homogenization of the material and preventing fertilizer agglomeration.

[0008] Furthermore, the two crushing rollers are respectively provided with staggered ring teeth, the sidewalls of adjacent ring teeth on different crushing rollers are separated, and the outer edge of the ring tooth on any crushing roller is separated from the roller surface of the other crushing roller.

[0009] Furthermore, a crushing arc surface is provided around the lower part of the two crushing rollers inside the housing. The bottom end of the crushing arc surface is connected to the cooling channel. Several limiting ridges are provided on the crushing arc surface, which can fit into the gap between adjacent ring teeth on the same side crushing roller.

[0010] Furthermore, the drive source includes a first geared motor, the output end of which is fixedly connected to one of the crushing rollers.

[0011] Furthermore, the outer wall of the housing is rotatably provided with a first driving disk and a first driven disk. A first belt capable of driving the first driving disk and the first driven disk to rotate synchronously is arranged around their outer sides. The first driving disk is coaxially and fixedly connected to a crushing roller. A first driving gear is coaxially and fixedly connected to the first driven disk. A first driven gear capable of meshing with the first driving gear is coaxially and fixedly connected to another crushing roller.

[0012] Furthermore, the jet holes are strip-shaped and vertically uniformly arranged, and filter plates are provided inside both the jet holes and the air outlet holes.

[0013] Furthermore, flow equalization chambers are provided on both sides of the housing near the cooling channel, and the flow equalization chambers are respectively connected to the jet hole and the fan.

[0014] Furthermore, the homogenizing mechanism also includes a material distribution chamber, which is connected to and disposed below the cooling channel. A material distribution shaft is rotatably disposed in the material distribution chamber. The material distribution shaft is driven to rotate by a second reduction motor fixedly disposed on the outer wall of the housing. Several material distribution rods are staggered on the material distribution shaft, and a material distribution plate is fixedly connected to the end of each material distribution rod.

[0015] Furthermore, the homogenizing mechanism also includes a pair of primary grinding rollers, which are arranged side by side and rotate above the crushing roller. The two primary grinding rollers are driven to rotate in opposite directions by a third geared motor fixedly mounted on the outer wall of the housing.

[0016] Furthermore, the discharge port is fixedly provided with sliding grooves on both sides, and the bottom cover is slidably disposed in the sliding grooves.

[0017] Compared with existing technologies, this invention has the following advantages: the material is initially mechanically crushed by the crushing roller, breaking up any clumps that may form, creating a favorable loose physical state for subsequent uniform cooling; the cooling airflow injected through the jet holes on both sides of the cooling channel acts directly on the interior of the falling loose material, achieving rapid and uniform heat exchange from the inside of the material, thus improving heat exchange efficiency; at the same time, the blowing and gravity impact of the airflow on the material enables the material to undergo efficient homogenization during the cooling process, significantly improving the chelation quality of the finished fertilizer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell in an embodiment of this utility model.

[0020] Figure 3 This is a schematic cross-sectional view of an embodiment of the present utility model.

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 5 This is a schematic diagram of the transmission structure according to an embodiment of the present utility model.

[0023] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0024] Figure 7 This is a schematic diagram of the bottom structure of an embodiment of the present utility model.

[0025] In the above figures: 1. Shell; 11. Feed inlet; 12. Discharge outlet; 13. Slide groove; 14. Bottom cover; 141. Handle; 2. Crushing roller; 21. Ring tooth; 22. Crushing arc surface; 221. Limiting ridge; 23. First geared motor; 231. First drive disc; 24. First driven disc; 25. First belt; 26. First drive gear; 27. First driven gear; 28. First protective shell; 3. Cooling channel; 31. Air jet; 32. Flow equalization chamber; 33. Air outlet; 34. Filter plate; 4. Fan; 5. Distributing chamber; 51. Distributing shaft; 52. Second geared motor; 53. Distributing rod; 54. Distributing plate; 6. Primary grinding roller; 61. Third geared motor; 62. Second drive disc; 63. Second driven disc; 64. Second belt; 65. Second drive gear; 66. Second driven gear; 67. Second protective shell. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-4 and Figure 7 As shown in the figure, this utility model embodiment proposes a homogenizing and cooling device for chelated fertilizer production, which includes a hollow shell 1 fixedly disposed, a support leg fixedly disposed at the bottom of the shell 1, an inlet 11 and an outlet 12 respectively disposed at the top and bottom of the shell 1, a bottom cover 14 disposed at the outlet 12, a homogenizing mechanism fixedly disposed inside the shell 1, the homogenizing mechanism including a pair of crushing rollers 2 arranged in parallel and rotating, the two crushing rollers 2 rotating towards each other with a certain working gap, a drive source that can drive the two crushing rollers 2 to rotate is fixedly disposed on the outer wall of the shell 1, a cooling mechanism is fixedly disposed inside the shell 1 directly below the crushing rollers 2, the cooling mechanism includes a cooling channel 3, a plurality of air jet holes 31 are arranged opposite each other on the two side walls of the cooling channel 3, the air jet holes 31 are connected to a fan 4 fixedly disposed on the outer wall of the shell 1, the fan 4 inputs cooling air into the cooling channel 3 through the air jet holes 31, an air outlet 33 is fixedly disposed on one side of the top of the cooling channel 3, and the air outlet 33 is connected to an exhaust gas treatment device.

[0028] In this exemplary embodiment, the feed inlet 11 is preferably open to facilitate continuous and stable material supply via the elevator. The two crushing rollers 2 can be flexibly configured in size and working gap according to the actual material agglomeration situation to effectively crush and disperse the material. The cooling channel 3 located directly below the crushing rollers 2 is vertically arranged, with its cross-section decreasing in width relative to the feed inlet 11 and spanning and covering the bottom crushing openings of the two crushing rollers 2 in length, forming a concentrated, vertical discharge channel. The air jets 31 evenly distributed on both sides of the cooling channel 3 allow the cooling air delivered by the fan 4 to directly penetrate the falling material layer in the form of a jet, achieving full contact and rapid heat exchange between the airflow and the fertilizer particles. In some other embodiments, the fan 4 on the outer wall of the shell 1 can be further equipped with an air cooling system to efficiently remove heat through lower temperature cooling air. The depth of the cooling channel 3 is set according to the actual situation, so that the fertilizer particles have sufficient heat exchange time while also relying on gravity to generate a scattering effect, jointly achieving further homogenization and secondary crushing of the material. Finally, the bottom cover 14 is controlled to open and close according to the actual situation to achieve rapid material discharge.

[0029] In use, fertilizer material falls from the feed inlet 11 into the space between the opposing rotating crushing rollers 2, where it is initially crushed and dispersed by the roller surface to form loose small particles. These particles then fall naturally into the cooling channel 3 below in a waterfall-like curtain. During this process, the jet holes 31 on both sides of the cooling channel 3 simultaneously spray out high-speed cooling airflow. The cold air directly penetrates the falling material layer, quickly carrying away the heat it carries, and strongly blowing and disturbing the material, causing it to tumble and further homogenize in the airflow. The material continues to fall under the action of gravity and impacts the subsequent material layer or the bottom of the channel, and then falls out through the discharge port 12, achieving secondary homogenization of the material and preventing fertilizer agglomeration.

[0030] This invention uses a crushing roller 2 to perform preliminary mechanical crushing of the material, breaking up any clumps that may form, creating a favorable loose physical state for subsequent uniform cooling. The cooling airflow injected through the jet holes 31 on both sides of the cooling channel 3 acts directly on the interior of the falling loose material, achieving rapid and uniform heat exchange from the inside of the material and improving heat exchange efficiency. At the same time, the blowing and gravity impact of the airflow on the material enables the material to undergo efficient homogenization during the cooling process, significantly improving the chelation quality of the finished fertilizer.

[0031] like Figure 1-3As shown, in another embodiment, the two crushing rollers 2 are respectively provided with staggered ring teeth 21. Several arc-shaped teeth are uniformly fixed around the ring teeth 21. The sidewalls of adjacent ring teeth 21 on different crushing rollers 2 are separated, and the outer edge of the ring teeth 21 on any crushing roller 2 is separated from the roller surface of the other crushing roller 2. Based on the above configuration, when the material enters from the top, the crushing receiving surface formed by the roller surface, the ring teeth 21 and the inner wall of the shell 1 can effectively receive and guide the material, so that it naturally enters the crushing area between the two rollers under the rotation of the roller body. The size of the teeth and the distance between adjacent teeth can be flexibly set according to the actual situation and are not limited here. The two together determine the crushing particle size of the agglomerated material, so that the agglomerated material can be fully broken up but not easily over-crushed, providing a loose and uniform material basis for subsequent cooling, thereby ensuring the smoothness and efficiency of the entire homogeneous cooling process from the source.

[0032] like Figure 1-3 As shown, in this embodiment, a crushing arc surface 22 is provided around the lower part of the two crushing rollers 2 inside the housing 1. The bottom end of the crushing arc surface 22 is connected to the cooling channel 3. Several limiting ridges 221 are provided on the crushing arc surface 22. The limiting ridges 221 can fit into the gaps between adjacent ring teeth 21 on the crushing roller 2 on the same side. Based on the above configuration, the limiting ridges 221 can effectively block the material from falling from both sides of the housing 1 into the gaps between the ring teeth 21 on the crushing roller 2. While maintaining an appropriate operating gap between the crushing arc surface 22 and the roller surface and ring teeth 21 of the crushing roller 2, it ensures the integrity and airtightness of the crushing receiving surface formed by the roller surface, ring teeth 21 and crushing arc surface 22, so that all incoming material can be effectively guided to the crushing area between the two rollers. At the same time, the limiting ridges 221 at the connection with the cooling channel 3 can continuously clean the residual material that may be trapped between the ring teeth 21 to keep the crushing roller 2 clean and ensure the crushing effect.

[0033] like Figure 1-3 and Figure 5-6As shown, in another embodiment, the driving source includes a first geared motor 23. The output end of the first geared motor 23 is fixedly connected to one of the crushing rollers 2 to drive the crushing roller 2 to rotate. As one driving method, specifically, a first driving disk 231 and a first driven disk 24 are rotatably provided on the outer wall of the housing 1. A first belt 25 capable of driving the first driving disk 231 and the first driven disk 24 to rotate synchronously is arranged around their outer sides. The first driving disk 231 is coaxially fixedly connected to one crushing roller 2. A first driving gear 26 is coaxially fixedly connected to the first driven disk 24. A first driven gear 27 capable of meshing with the first driving gear 26 is coaxially fixedly connected to another crushing roller 2. A first protective shell 28 is detachably provided on the outer wall of the housing 1, and the first geared motor 23 is fixedly mounted on the first protective shell. 28. Based on the above configuration, the first drive disk 231 is driven by the first reduction motor 23, and then the first driven disk 24 is driven to rotate synchronously via belt transmission. Finally, the two crushing rollers 2 achieve precise reverse rotation through the meshing of the first drive gear 26 and the first driven gear 27. It is worth noting that the first drive gear 26 and the first driven gear 27 need to be set to the same size to ensure that the two crushing rollers 2 have the same speed. The belt transmission structure has good load buffering characteristics and can smoothly absorb the impact fluctuations generated when the crushing rollers 2 are working. In some other embodiments, the belt transmission mechanism can be replaced by a chain and sprocket mechanism, or the whole can be simplified into a compact transmission structure in which two gears mesh directly to drive the two crushing rollers 2 to rotate in opposite directions. The specific configuration can be flexibly set according to the actual situation and is not limited here.

[0034] like Figure 1-4 and Figure 6 As shown, in another embodiment, the jet holes 31 are strip-shaped and vertically uniformly arranged, and filter plates 34 are provided in both the jet holes 31 and the air outlets 33. Based on the above arrangement, the filter plates 34 can ensure that the cooling airflow penetrates the material layer evenly, while intercepting fertilizer particles from entering the air duct and causing blockage. Furthermore, the jet holes 31 can extend upward to the edge of the limiting ridge 221, so that some airflow can be directionally blown to the bottom of the crushing roller 2. The rising hot airflow is discharged in an orderly manner through the top air outlets 33 and the filter plates 34, forming a stable airflow circulation, realizing the simultaneous improvement of cooling effect and equipment maintenance.

[0035] like Figure 1-4As shown, in another embodiment, flow equalization chambers 32 are provided inside the housing 1 near both sides of the cooling channel 3. The flow equalization chambers 32 are connected to the jet holes 31 and the fan 4, respectively. Based on the above configuration, the flow equalization chambers 32 can effectively buffer and redistribute the cooling air delivered by the fan 4, so that the airflow is uniformly delivered to each vertical strip jet hole 31 with similar pressure and flow rate. This eliminates the uneven airflow distribution caused by the difference in pipe resistance, ensuring that a stable and continuous airflow curtain is formed in the width direction of the entire cooling channel 3. This allows the falling material particles to obtain consistent and sufficient cooling contact regardless of their position in the channel. The flow equalization chambers 32 also play a role in stabilizing the airflow, further enhancing the uniformity and controllability of the cooling process.

[0036] like Figure 1-4 As shown, in another embodiment, the homogenizing mechanism further includes a material dispersing chamber 5, which is connected to and disposed below the cooling channel 3. A material dispersing shaft 51 is rotatably disposed within the material dispersing chamber 5. The material dispersing shaft 51 is driven to rotate by a second reduction motor 52 fixedly disposed on the outer wall of the housing 1. A plurality of material dispersing rods 53 are alternately arranged on the material dispersing shaft 51. A material dispersing plate 54 is fixedly connected to the end of the material dispersing rod 53. The material dispersing plate 54 is separated from the inner wall of the material dispersing chamber 5. Based on the above configuration, when material falls into the material dispersing chamber 5, the material dispersing rods 53 carry... The material distribution plate 54 at the moving end beats and disperses the falling material, which can not only further disperse any possible clumps and significantly improve the homogenization of the material, but also promptly clean up any material that may adhere to the cavity wall and guide it to the discharge port 12. Preferably, the material distribution rod 53 and the material distribution plate 54 can be made of flexible materials such as polyurethane, engineering nylon or wear-resistant rubber, which can maintain sufficient structural strength and wear resistance while having good elastic deformation ability, effectively breaking up material clumps and avoiding excessive crushing of the material by rigid impact.

[0037] like Figure 1-3 and Figure 5-6As shown, in another embodiment, the homogenizing mechanism further includes a pair of primary grinding rollers 6. The two primary grinding rollers 6 are arranged side by side and rotate above the crushing roller 2. The two primary grinding rollers 6 are driven to rotate in opposite directions by a third reduction motor 61 fixedly mounted on the outer wall of the housing 1. Specifically, a second driving disk 62 and a second driven disk 63 are rotatably mounted on the outer wall of the housing 1. A second belt 64 capable of driving the two to rotate synchronously is arranged around the outer side of the second driving disk 62 and the second driven disk 63. The second driving disk 62 is coaxially and fixedly connected to one of the primary grinding rollers 6, and a second driving gear 65 is coaxially and fixedly connected to the second driven disk 63. Another primary grinding roller 6 is coaxially fixedly connected to a second driven gear 66 that can mesh with the second drive gear 65. A second protective shell 67 is detachably installed on the outer wall of the housing 1. A third reduction motor 61 is fixedly installed on the second protective shell 67. Based on the above configuration, a certain working gap is provided between the two primary grinding rollers 6, which can perform preliminary crushing and crushing on the incoming raw materials, pre-compressing any large lumps into smaller pieces. The uniform material curtain formed by the primary grinding provides better feeding conditions for the crushing roller 2, allowing the material to enter the subsequent crushing area in a more uniform physical state.

[0038] like Figure 7 As shown, in another embodiment, further, the discharge port 12 is fixedly provided with sliding grooves 13 on both sides, and the bottom cover 14 is slidably disposed in the sliding grooves 13, with a handle 141 provided on the bottom cover 14; based on the above configuration, the horizontal displacement of the bottom cover 14 in the sliding grooves 13 can flexibly adjust the opening degree of the discharge port 12 and the discharge flow rate, thereby matching various working conditions. In some other embodiments, a linear drive mechanism such as a cylinder or linear motor can also be provided at the bottom of the housing 1 to drive the bottom cover 14 to move automatically and accurately, thereby realizing the automation of the operation.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A homogenizing cooling device for chelated fertilizer production, comprising a fixedly disposed shell (1), wherein an inlet (11) and an outlet (12) are respectively disposed at the top and bottom of the shell (1), and a bottom cover (14) is disposed at the outlet (12), characterized in that, Also includes: The homogenizing mechanism is fixedly installed inside the housing (1), and includes a pair of crushing rollers (2) arranged in parallel and rotating. A drive source that can drive the two crushing rollers (2) to rotate is fixedly installed on the outer wall of the housing (1). The cooling mechanism is fixedly installed directly below the crushing roller (2). It includes a cooling channel (3). Several air jet holes (31) are provided on the two side walls of the cooling channel (3). The air jet holes (31) are connected to the fan (4) fixedly installed on the outer wall of the housing (1). An air outlet (33) is fixedly installed on one side of the top of the cooling channel (3).

2. The homogenizing cooling device for chelated fertilizer production as described in claim 1, characterized in that: The two crushing rollers (2) are respectively provided with staggered ring teeth (21), the side walls of adjacent ring teeth (21) on different crushing rollers (2) are separated, and the outer edge of the ring teeth (21) on any crushing roller (2) is separated from the roller surface of the other crushing roller (2).

3. The homogenizing cooling device for chelated fertilizer production according to claim 2, characterized in that: The housing (1) is surrounded by two crushing rollers (2) with a crushing arc surface (22) at the bottom. The bottom end of the crushing arc surface (22) is connected to the cooling channel (3). Several limiting ridges (221) are provided on the crushing arc surface (22). The limiting ridges (221) can fit into the gap between adjacent ring teeth (21) on the crushing roller (2) on the same side.

4. The homogenizing cooling device for chelated fertilizer production as described in claim 1, characterized in that: The drive source includes a first geared motor (23), the output end of which is fixedly connected to a crushing roller (2).

5. The homogenizing cooling device for chelated fertilizer production as described in claim 4, characterized in that: The outer wall of the housing (1) is rotatably provided with a first drive disk (231) and a first driven disk (24). The outer sides of the first drive disk (231) and the first driven disk (24) are surrounded by a first belt (25) that can drive the two to rotate synchronously. The first drive disk (231) is coaxially fixedly connected to a crushing roller (2). The first driven disk (24) is coaxially fixedly connected to a first drive gear (26). The other crushing roller (2) is coaxially fixedly connected to a first driven gear (27) that can mesh with the first drive gear (26).

6. The homogenizing cooling device for chelated fertilizer production as described in claim 1, characterized in that: The jet holes (31) are strip-shaped and vertically uniformly arranged, and filter plates (34) are provided inside both the jet holes (31) and the air outlets (33).

7. The homogenizing cooling device for chelated fertilizer production as described in claim 6, characterized in that: The housing (1) has flow equalization chambers (32) on both sides near the cooling channel (3), and the flow equalization chambers (32) are connected to the jet hole (31) and the fan (4) respectively.

8. The homogenizing cooling device for chelated fertilizer production as described in claim 1, characterized in that: The homogenizing mechanism also includes a material dispersing chamber (5), which is connected to the cooling channel (3) below. A material dispersing shaft (51) is rotatably arranged in the material dispersing chamber (5). The material dispersing shaft (51) is driven to rotate by a second reduction motor (52) fixedly arranged on the outer wall of the housing (1). Several material dispersing rods (53) are arranged alternately on the material dispersing shaft (51). A material dispersing plate (54) is fixedly connected to the end of the material dispersing rod (53).

9. The homogenizing cooling device for chelated fertilizer production as described in claim 1, characterized in that: The homogenizing mechanism also includes a pair of primary grinding rollers (6), which are arranged side by side and rotate above the crushing roller (2). The two primary grinding rollers (6) are driven to rotate in opposite directions by a third reduction motor (61) fixedly installed on the outer wall of the housing (1).

10. The homogenizing cooling device for chelated fertilizer production according to claim 1, characterized in that: The discharge port (12) is fixedly provided with sliding grooves (13) on both sides, and the bottom cover (14) is slidably disposed in the sliding grooves (13).

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