Crushing device for fertilizer production

Abstract

The invention relates to the field of fertilizer processing and production, in particular to a crushing device for fertilizer production, the crushing device comprises an equipment frame and a driving assembly, the top of the equipment frame is provided with a feed inlet, the driving assembly is arranged at the top of the feed inlet, and the bottom of the driving assembly is rotatably connected with a plurality of telescopic assemblies; by dredging the blocked part, other crushing barrels and crushing assemblies are not affected, normal grinding and crushing can be continued, and shutdown is not needed; the overall shutdown time caused by local faults of the equipment is shortened, the capacity loss caused by shutdown is reduced, meanwhile, extra energy consumption needed by frequent starting and stopping of the equipment is saved, the actual operation time of the equipment is prolonged, and the fertilizer yield in unit time is increased; the problems that due to the limitation of the overall structure and the operation mechanism, operators have to stop the operation of the whole equipment, the whole production chain needs to be paused and wait, and the production continuity is seriously damaged are solved.

Description

Technical Field

[0001] The invention relates to the field of fertilizer processing and production, and in particular to a pulverizing device for fertilizer production. Background Art

[0002] A pulverizing device for compound fertilizer production with application number CN202410615075.4 is provided to solve the problem of pulverizing effect; it specifically includes a shell, a quantitative feeding part arranged above the shell and a feeding funnel arranged above the quantitative feeding part, the interior of the shell is connected with a pulverizing part through a pulverizing shaft, and a screen is fixed to the bottom inner wall of the shell; the invention pulverizes by utilizing the continuous cooperation and separation of the convex pulverizing disk and the concave matching ring, so that on the one hand, the static pressure during cooperation can be utilized to achieve pulverization, and on the other hand, the convex pulverizing disk will also rotate at high speed, and the static state of the concave matching ring can achieve a "rubbing" type grinding effect, thereby increasing the final pulverizing effect and increasing the fineness of the pulverization, and on the other hand, when the raw material moves from the top to the bottom, the whole will be "rubbed" along the path of a vortex line in the vertical plane, increasing the pulverizing path and further increasing the grinding effect.

[0003] In the prior art including the above-mentioned patent, when the grinding barrel in the equipment is blocked, due to the limitations of the overall structure and operating mechanism, the operator often has to stop the operation of the entire equipment. This is because the components of the equipment are highly correlated and it is impossible to independently handle the failure of a single grinding barrel. The complete shutdown not only causes the ongoing grinding and crushing work to be forced to be interrupted, but also the entire production chain needs to be paused and waited, which seriously disrupts the continuity of production. A lot of time is wasted on equipment restart preparation, troubleshooting and blockage cleaning. Frequent starting and stopping of equipment will also consume additional energy and increase production costs. Long-term shutdowns also directly lead to production capacity losses, and fertilizer output is difficult to reach the expected target and cannot meet market demand.

[0004] Therefore, it is necessary to invent a pulverizing device for fertilizer production to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a pulverizing device for fertilizer production. By clearing the blockage, the present invention does not affect other pulverizing barrels and pulverizing components and can continue to grind and pulverize normally without stopping the machine. The overall downtime caused by local equipment failure is reduced, the continuity and efficiency of production are improved, and the production capacity loss caused by downtime is reduced. At the same time, the additional energy consumption required for frequent starting and stopping of the equipment is saved, the actual operating time of the equipment is increased, and the fertilizer output per unit time is improved. The present invention solves the problem that due to the limitations of the overall structure and operating mechanism, the operator often has to stop the operation of the entire equipment, resulting in the entire production chain needing to pause and wait, which seriously damages the continuity of production.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical scheme: a pulverizing device for fertilizer production, comprising an equipment frame and a driving assembly, wherein a feed port is provided at the top of the equipment frame, the driving assembly is provided at the top of the feed port, a plurality of telescopic assemblies are rotatably connected to the bottom of the driving assembly, a discharge port is provided at the bottom of the equipment frame, and an external discharge port is provided on the side wall of the equipment frame; A plurality of crushing cylinders are arranged in the frame of the equipment, an inner discharge port cooperating with the outer discharge port is arranged on the side wall of the crushing cylinder, a plurality of electric telescopic rods are arranged at the bottom of the crushing cylinder, a sieve plate is arranged in the crushing cylinder, the sieve plate is located at the bottom of the inner discharge port, and a linkage assembly cooperating with the plurality of electric telescopic rods is arranged at the bottom of the sieve plate; One end of the crushing cylinder is transmission-connected to the driving assembly, a grinding groove is provided in the inner cavity of the crushing cylinder, a crushing assembly is rotatably provided in the grinding groove, one end of the crushing assembly is slidably inserted in the telescopic assembly, and the other end of the crushing assembly is rotatably connected to the bottom wall of the equipment frame.

[0007] As a preferred solution of the present invention, the driving assembly includes a support plate, which is located at the top of the feed port, and a plurality of connecting rods arranged in a ring are provided on the outer wall of the support plate, and the other ends of the plurality of connecting rods are commonly connected to the outer wall of the feed port, and a protective cover is provided on the top of the support plate, and a servo motor is provided in the protective cover, and a power output shaft of the servo motor rotates through the center of the support plate and is connected to a gear disk.

[0008] As a preferred solution of the present invention, a material distribution component is provided on the inner side wall of the equipment frame, and the material distribution component includes a material discharge tray, which is arranged on the side wall of the feed port of the equipment frame, and has a plurality of circular openings arranged in a ring shape, and a guide block is provided at the top center of the lower material tray, the cross-section of the guide block is conical, the conical tip of the guide block is facing upward, and a plurality of partitions matching the positions of the circular openings are provided on the conical side wall of the guide block.

[0009] As a preferred solution of the present invention, the telescopic assembly includes a sleeve rod, one end of which is rotatably connected to the bottom of the support plate, a toothed roller is provided on the outer side wall of the sleeve rod, and the other end of the sleeve rod is provided with a cross plug hole that cooperates with the crushing assembly.

[0010] As a preferred embodiment of the present invention, the crushing assembly includes a grinding roller, which is rotatably arranged in the inner cavity of the grinding groove. The cross-section of the grinding roller is conically arranged, and the top and bottom of the conical setting of the grinding roller are provided with grinding teeth that cooperate with the grinding groove. The top of the grinding roller is provided with a plurality of material passing rods arranged in a rectangular array, and the top of the grinding roller is provided with a rotating rod. The outer side wall of the rotating rod is provided with a limit plate that cooperates with the cross plug hole, and the other end of the rotating rod is rotatably connected to the bottom of the equipment frame.

[0011] As a preferred solution of the present invention, a scraper rod is provided on the outer wall of the rotating rod, a conical scraper is provided at the bottom of the scraper rod, the conical scraper is fitted against the surface of the sieve plate, the outer wall of the sieve plate is connected to the inner cavity of the crushing barrel, and the top of the sieve plate is fitted against the bottom of the inner discharge port.

[0012] As a preferred solution of the present invention, the linkage assembly includes a dispersion strip, which is rotatably sleeved on the outer side wall of the rotating rod, and is provided with a plurality of spikes that cooperate with the sieve plate; A plurality of extension rods arranged in a circular array are provided on the outer side wall of the dispersing strip, and one end of the extension rod slides through the outer side wall of the crushing cylinder.

[0013] As a preferred solution of the present invention, a supporting ring plate is provided at the bottom of the pulverizing cylinder, and the bottom ends of the plurality of electric telescopic rods are arranged on the supporting ring plate in a circular array.

[0014] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: 1. During the production process, when any crushing cylinder of this equipment is blocked, it is only necessary to clear the blockage. Other crushing cylinders and crushing components are not affected and can continue to grind and crush normally without stopping the machine. This reduces the overall downtime caused by local equipment failure, improves production continuity and efficiency, reduces production capacity loss caused by downtime, and saves the extra energy consumption required for frequent starting and stopping of equipment, increases the actual operation time of the equipment, and increases the fertilizer output per unit time. 2. In fertilizer production, the rotation of the rotating rod provides power for cleaning the blockage on the sieve plate, driving the scraper rod and the bottom conical scraper to work. They can push the blockage on the sieve plate to the inner discharge port and then discharge it through the outer discharge port. While solving the blockage problem, the scraping process also optimizes the filtration process, avoids material accumulation, and improves filtration efficiency. This mechanism reduces equipment downtime and manual cleaning frequency, reduces manpower and equipment maintenance costs, improves fertilizer production efficiency, and creates economic benefits for the enterprise; 3. When the grinding roller moves to the top to discharge the blockage, it can not only block the top material to prevent it from flowing disorderly when the blockage is discharged, but also continue grinding through its own rotation to ensure that the production process is not interrupted; the material-clearing rod rotates to dredge the material discharge, reduce the degree of equipment blockage, and effectively avoid material accumulation during the material discharge process, thus ensuring the continuity and efficiency of the fertilizer production process, reducing the number of shutdowns caused by blockage and poor material discharge, improving production efficiency, and reducing maintenance costs; 4. The raw materials are separated by partitions. When unloading, the staff can directly observe or remotely detect the blockage of the crushing cylinder with the help of video equipment. By controlling the extension and retraction of the electric telescopic rod, the accumulated materials on the top of the blocked crushing cylinder can be dredged. This not only avoids the tedious manual on-site inspection and cleaning, and greatly reduces the labor of personnel and equipment maintenance, but also allows the equipment to continue to operate when it is partially blocked, thereby improving production efficiency, reducing the time and labor costs caused by maintenance, and improving overall production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the external overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall planar cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the internal overall structure of the present invention; Figure 4 It is a schematic diagram of the structure of the material distribution component of the present invention; Figure 5 It is a schematic diagram of the structure of the driving assembly of the present invention; Figure 6 It is a schematic structural diagram of the connection relationship between the rotating rod and the sleeve rod of the present invention; Figure 7 An exploded view of the telescopic assembly and the crushing assembly of the present invention; Figure 8 It is a schematic diagram of the internal cross-sectional structure of the pulverizing tube of the present invention; Fig. 9 It is a schematic diagram of the spike structure of the present invention; Fig.10 It is a schematic diagram of the structure of the scraper rod and the sieve plate of the present invention; Fig.11 It is a schematic diagram of the linkage component structure of the present invention.

[0017] Description of reference numerals: 01. External discharge port; 02. Internal discharge port; 1. Equipment frame; 2. Driving assembly; 21. Support plate; 22. Connecting rod; 23. Protective cover; 24. Servo motor; 25. Gear disc; 3. Crushing cylinder; 31. Support ring plate; 4. Crushing assembly; 41. Grinding roller; 42. Feeding rod; 43. Rotating rod; 44. Scraping rod; 5. telescopic assembly; 51. sleeve rod; 52. gear roller; 6. Sieve plate; 7. linkage assembly; 71. dispersion strip; 72. extension rod; 73. spike; 8. Electric telescopic rod; 9. Material distribution assembly; 91. Material discharge tray; 92. Guide block; 93. Partition plate. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] The present invention provides Figure 1-Figure 11 A crushing device for fertilizer production shown in the figure includes an equipment frame 1 and a driving assembly 2, a feed port is provided on the top of the equipment frame 1, the driving assembly 2 is arranged on the top of the feed port, a plurality of telescopic assemblies 5 are rotatably connected to the bottom of the driving assembly 2, a discharge port is provided at the bottom of the equipment frame 1, and an external discharge port 01 is provided on the side wall of the equipment frame 1; the equipment frame 1 provides an overall supporting structure for the device to ensure that all components are firmly installed; the driving assembly 2 drives the telescopic assembly 5 through the power output shaft to provide a power basis for subsequent crushing work, so that the grinding work of multiple groups of raw materials can be realized; the feed port facilitates the input of raw materials, the discharge port facilitates the discharge of qualified crushed materials, and the external discharge port 01 is used to discharge blockages, thereby ensuring the smooth progress of the entire crushing process.

[0020] A plurality of crushing barrels 3 are arranged in the equipment frame 1, an inner discharge port 02 cooperating with the outer discharge port 01 is arranged on the side wall of the crushing barrel 3, a plurality of electric telescopic rods 8 are arranged at the bottom of the crushing barrel 3, a sieve plate 6 is arranged in the crushing barrel 3, the sieve plate 6 is located at the bottom of the inner discharge port 02, and a linkage assembly 7 cooperating with the plurality of electric telescopic rods 8 is arranged at the bottom of the sieve plate 6; the plurality of crushing barrels 3 can grind a plurality of groups of raw materials at the same time, thereby improving the grinding efficiency; the inner discharge port 02 cooperates with the outer discharge port 01 to facilitate the discharge of blockages; the electric telescopic rod 8 can push the linkage assembly 7 to realize the functions of cleaning the sieve plate 6 and blockages and unblocking materials; the sieve plate 6 can filter large-particle blockages to ensure the quality of the crushed materials; the linkage assembly 7 cooperates with the electric telescopic rod 8 to play an important role in cleaning the sieve plate 6 and unblocking materials, thereby preventing the sieve plate 6 mesh from being blocked and affecting the filtering effect.

[0021] One end of the crushing barrel 3 is transmission-connected with the driving component 2, and a grinding groove is provided in the inner cavity of the crushing barrel 3, in which a crushing component 4 is rotationally provided, one end of the crushing component 4 is slidably inserted in the telescopic component 5, and the other end of the crushing component 4 is rotationally connected to the inner bottom wall of the equipment frame 1; the crushing barrel 3 is transmission-connected with the driving component 2 to ensure power transmission, so that the crushing component 4 can rotate in the grinding groove to achieve grinding of the raw materials; the crushing component 4 is connected with the telescopic component 5, and can achieve simultaneous grinding of multiple groups of raw materials during rotation, thereby improving efficiency, and is rotationally connected with the inner bottom wall of the equipment frame 1 to ensure structural stability and enable continuous grinding work.

[0022] Furthermore, the driving assembly 2 includes a support plate 21, which is located at the top of the feed port. A plurality of connecting rods 22 arranged in a ring are provided on the outer wall of the support plate 21, and the other ends of the plurality of connecting rods 22 are commonly connected to the outer wall of the feed port. A protective cover 23 is provided on the top of the support plate 21, and a servo motor 24 is provided in the protective cover 23. The power output shaft of the servo motor 24 rotates through the center of the support plate 21 and is connected to a gear disk 25; the support plate 21 is connected to the feed port through the connecting rod 22, providing installation support for the servo motor 24 and other components; the protective cover 23 can protect the servo motor 24 from being interfered with or damaged by external factors; the servo motor 24 provides stable power, and transmits the power to other components through the gear disk 25, thereby ensuring the stability and efficiency of the entire driving process.

[0023] Furthermore, a material dividing component 9 is provided on the inner side wall of the equipment frame 1, and the material dividing component 9 includes a feed tray 91, which is provided on the side wall of the feed inlet of the equipment frame 1, and has a plurality of circular openings arranged in a ring. A guide block 92 is provided at the top center of the feed tray 91, and the cross-section of the guide block 92 is conically set, and the tip of the conical setting of the guide block 92 faces upward, and a plurality of partitions 93 matching the circular opening positions are provided on the conical side wall of the guide block 92; the material dividing component 9 can group the materials, and when a certain crushing barrel 3 on the feed tray 91 is blocked, the blockage situation can be judged by the partition 93 and the accumulation state of the raw materials; the conical setting of the guide block 92 helps to guide the raw materials to flow to the circular opening, so that the raw materials can enter each crushing barrel 3 more evenly, thereby improving the uniformity and efficiency of grinding.

[0024] Furthermore, the telescopic assembly 5 includes a sleeve rod 51, one end of which is rotatably connected to the bottom of the support plate 21, a toothed roller 52 is provided on the outer wall of the sleeve rod 51, and the other end of the sleeve rod 51 is provided with a cross-connecting hole that cooperates with the crushing assembly 4; the sleeve rod 51 is rotatably connected to the support plate 21 to ensure that it can rotate flexibly and cooperate with the toothed roller 52 and other components to realize power transmission; the cross-connecting hole cooperates with the crushing assembly 4, so that the crushing assembly 4 can stably follow the rotation of the sleeve rod 51, ensuring the smooth progress of the grinding work, while facilitating installation and disassembly, and facilitating equipment maintenance.

[0025] Furthermore, the crushing component 4 includes a grinding roller 41, which is rotatably arranged in the inner cavity of the grinding groove. The cross-section of the grinding roller 41 is conically set. The top and bottom of the conical setting of the grinding roller 41 are provided with grinding teeth that match the grinding groove. The top of the grinding roller 41 is provided with a plurality of feeding rods 42 arranged in a rectangular array. The top of the grinding roller 41 is provided with a rotating rod 43, and the outer side wall of the rotating rod 43 is provided with a limiting plate that matches the cross plug hole. The other end of the rotating rod 43 is rotatably connected to the bottom of the equipment frame 1; the conical setting and grinding teeth of the grinding roller 41 can effectively grind the raw materials and improve the grinding effect; the feeding rod 42 can dredge the unloading place when rotating to reduce the degree of equipment blockage; the rotating rod 43 cooperates with the cross plug hole through the limiting plate to stably connect the telescopic component 5 to ensure power transmission, and its other end is rotatably connected to the bottom of the equipment frame 1 to ensure structural stability and ensure that the grinding roller 41 continues to work.

[0026] Furthermore, a scraper rod 44 is provided on the outer wall of the rotating rod 43, and a conical scraper is provided at the bottom of the scraper rod 44, which is fitted against the surface of the sieve plate 6, and the outer wall of the sieve plate 6 is connected to the inner cavity of the crushing cylinder 3, and the top of the sieve plate 6 is fitted against the bottom of the inner discharge port 02; driven by the rotating rod 43, the scraper rod 44 and the conical scraper can push the blockage on the sieve plate 6 to discharge it through the inner discharge port 02 and the outer discharge port 01, and at the same time, the filtration efficiency can be improved during the scraping process, and the accumulation of materials on the sieve plate 6 can be avoided, thereby ensuring the normal filtration function of the sieve plate 6 and the continuous operation of the equipment.

[0027] Furthermore, the linkage assembly 7 includes a dispersion strip 71, which is rotatably sleeved on the outer wall of the rotating rod 43, and the dispersion strip 71 is provided with a plurality of spikes 73 that cooperate with the sieve plate 6; A plurality of extension rods 72 arranged in a circular array are provided on the outer side wall of the dispersion bar 71, and one end of the extension rod 72 slides through the outer side wall of the crushing cylinder 3; the spikes 73 on the dispersion bar 71 can penetrate the mesh of the sieve plate 6 under the push of the electric telescopic rod 8, so as to clean the materials blocked in the mesh and improve the filtering effect of the sieve plate 6; the extension rod 72 cooperates with the electric telescopic rod 8 to push the dispersion bar 71 to move, so as to clean the sieve plate 6, avoid manual disassembly of the equipment to clean the sieve plate 6, and improve production efficiency.

[0028] Furthermore, a support ring plate 31 is provided at the bottom of the crushing barrel 3, and the bottom ends of multiple electric telescopic rods 8 are arranged on the support ring plate 31 in a ring array; the support ring plate 31 provides a stable supporting and mounting structure for the electric telescopic rods 8, so that the electric telescopic rods 8 can be firmly installed at the bottom of the crushing barrel 3, ensuring its stability during operation, thereby reliably pushing the linkage assembly 7 and other components to perform corresponding operations.

[0029] Working principle: First, pour the raw materials into the feed port. At this time, start the driving component 2, and drive the multiple telescopic components 5 to rotate simultaneously through the power output shaft of the driving component 2. The multiple crushing barrels 3 connected thereto are driven to rotate in the grinding tank through the rotation of the multiple telescopic components 5. During the rotation, multiple groups of raw materials can be ground at the same time, and the grinding efficiency is high. If any group of crushing barrels 3 is blocked during the process, after the materials are grouped with the partition 93, raw materials will accumulate on the discharge tray 91 on the top of the crushing barrel 3. At this time, the personnel can judge the blockage state of any group of crushing barrels 3 by the accumulation state. The method for solving the blockage is as follows: start one group of electric telescopic rods 8, and push the extension rod 72, the dispersion strip 71 and the spike 73 to move toward the top through the electric telescopic rod 8, and synchronously lift the rotating rod 43 and the grinding roller 41 to move toward the top. At this time, the blockage stuck in the grinding roller 41 and the bottom of the grinding groove will fall directly onto the sieve plate 6. Since the sieve plate 6 can filter large particle blockages, the blockage will be blocked by the sieve plate 6 and cannot pass through. At this time, the rotation of the rotating rod 43 will drive the scraper rod 44 and the conical scraper at the bottom of the scraper rod 44 to push the blockage on the sieve plate 6. When the blockage is pushed to the inner discharge port 02, it can be discharged through the inner discharge port 02 and discharged through the outer discharge port 01 at the bottom of the equipment frame 1; in the process, the scraper rod 44 can also improve the filtration efficiency when scraping the material to avoid the accumulation of materials during filtration; It should be noted that when the grinding roller 41 moves toward the top, the top material will be blocked in the process of discharging the blockage, and grinding can be performed at the same time by rotation. This structure cooperates with the rotation of the material passing rod 42 to dredge the material discharge point, thereby reducing the blockage degree of the equipment and avoiding the situation where the material is silted during the discharge process. Secondly, when the electric telescopic rod 8 pushes the linkage assembly 7 to rise, the top of the linkage assembly 7 contacts with the bottom of the sieve plate 6, pushing the sieve plate 6 to move toward the top, and the tops of the multiple spikes 73 located on the dispersion strip 71 will penetrate the mesh of the sieve plate 6. In the process, the materials blocked in the mesh will be cleaned, thereby improving the filtering effect of the sieve plate 6, avoiding the problem of manually disassembling the equipment to clean the sieve plate 6, and improving the production efficiency of the equipment; The qualified crushed materials after filtering are discharged through the bottom discharge port of the equipment frame 1; the personnel can find out the blockage problem of any group of crushing cylinders 3 by observation, or can observe remotely by assembling a camera device, and dredge the accumulated materials on the top of a single crushing cylinder 3 that is blocked by remotely controlling the extension and retraction of the electric telescopic rod 8, which can improve the production efficiency and reduce the labor of personnel for equipment maintenance, thereby improving the production efficiency; Compared with traditional equipment, when one of the grinding cylinders 3 is blocked, it is only necessary to clear the blockage there. The other grinding cylinders 3 and grinding components 4 can still perform the grinding and crushing work without being affected. There is no need to stop the operation and no need to spend extra time on the blockage.

[0030] The above only describes certain exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various different ways without departing from the spirit and scope of the present invention.

[0031] Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A crushing device for fertilizer production, characterized in that: The device comprises a device frame (1) and a drive assembly (2), wherein a feed port is provided at the top of the device frame (1), the drive assembly (2) is arranged at the top of the feed port, a plurality of telescopic assemblies (5) are rotatably connected to the bottom of the drive assembly (2), a discharge port is provided at the bottom of the device frame (1), and an external discharge port (01) is provided on the side wall of the device frame (1); A plurality of crushing barrels (3) are arranged in the equipment frame (1); an inner discharge port (02) cooperating with the outer discharge port (01) is arranged on the side wall of the crushing barrel (3); a plurality of electric telescopic rods (8) are arranged at the bottom of the crushing barrel (3); a sieve plate (6) is arranged in the crushing barrel (3); the sieve plate (6) is located at the bottom of the inner discharge port (02); and a linkage assembly (7) cooperating with the plurality of electric telescopic rods (8) is arranged at the bottom of the sieve plate (6); One end of the pulverizing cylinder (3) is drivingly connected to the driving assembly (2); a grinding groove is provided in the inner cavity of the pulverizing cylinder (3); a pulverizing assembly (4) is rotatably provided in the grinding groove; one end of the pulverizing assembly (4) is slidably inserted in the telescopic assembly (5); and the other end of the pulverizing assembly (4) is rotatably connected to the inner bottom wall of the device frame (1).

2. A pulverizing device for fertilizer production according to claim 1, characterized in that: The driving assembly (2) comprises a support plate (21), the support plate (21) being located at the top of the feed port, a plurality of connecting rods (22) arranged in a ring shape being provided on the outer side wall of the support plate (21), the other ends of the plurality of connecting rods (22) being commonly connected to the outer side wall of the feed port, a protective cover (23) being provided on the top of the support plate (21), a servo motor (24) being provided in the protective cover (23), a power output shaft of the servo motor (24) rotatingly passing through the center of the support plate (21) and being connected to a gear disc (25).

3. A pulverizing device for fertilizer production according to claim 1, characterized in that: A material distribution component (9) is provided on the inner side wall of the device frame (1), and the material distribution component (9) comprises a material discharge tray (91), the material discharge tray (91) is provided on the side wall of the material inlet of the device frame (1), a plurality of circular openings arranged in a ring shape are provided on the material discharge tray (91), a guide block (92) is provided at the top center of the material discharge tray (91), the cross section of the guide block (92) is conical, the conical tip of the guide block (92) is facing upwards, and a plurality of partitions (93) matching the positions of the circular openings are provided on the conical side wall of the guide block (92).

4. A pulverizing device for fertilizer production according to claim 1, characterized in that: The telescopic assembly (5) comprises a sleeve rod (51), one end of the sleeve rod (51) being rotatably connected to the bottom of the support plate (21), a toothed roller (52) being provided on the outer side wall of the sleeve rod (51), and the other end of the sleeve rod (51) being provided with a cross plug hole cooperating with the crushing assembly (4).

5. A pulverizing device for fertilizer production according to claim 1, characterized in that: The pulverizing assembly (4) comprises a grinding roller (41), the grinding roller (41) being rotatably arranged in the inner cavity of the grinding groove, the cross section of the grinding roller (41) being conical, the top and bottom of the conical setting of the grinding roller (41) being provided with grinding teeth that match the grinding groove, the top of the grinding roller (41) being provided with a plurality of material passing rods (42) arranged in a rectangular array, the top of the grinding roller (41) being provided with a rotating rod (43), the outer side wall of the rotating rod (43) being provided with a limit plate that matches the cross plug hole, and the other end of the rotating rod (43) being rotatably connected to the bottom of the device frame (1).

6. A pulverizing device for fertilizer production according to claim 5, characterized in that: A scraper rod (44) is provided on the outer wall of the rotating rod (43), and a conical scraper is provided at the bottom of the scraper rod (44). The conical scraper is arranged to fit the surface of the sieve plate (6). The outer wall of the sieve plate (6) is connected to the inner cavity of the pulverizing cylinder (3), and the top of the sieve plate (6) is located at the bottom of the inner discharge port (02) and fits.

7. A pulverizing device for fertilizer production according to claim 6, characterized in that: The linkage assembly (7) comprises a dispersion strip (71), the dispersion strip (71) being rotatably sleeved on the outer side wall of the rotating rod (43), and the dispersion strip (71) being provided with a plurality of spikes (73) cooperating with the sieve plate (6); A plurality of extension rods (72) arranged in a ring array are provided on the outer side wall of the dispersion strip (71), and one end of the extension rod (72) slides through the outer side wall of the pulverizing cylinder (3).

8. A pulverizing device for fertilizer production according to claim 7, characterized in that: A supporting ring plate (31) is provided at the bottom of the pulverizing cylinder (3), and the bottom ends of the plurality of electric telescopic rods (8) are arranged on the supporting ring plate (31) in a circular array.

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