A raw material grinding device for pyrazolate production based on energy-saving motor

Abstract

The application discloses a raw material grinding device for pyrazolynate production based on an energy-saving motor, which comprises a shell, a grinding assembly, a driving assembly and a nitrogen channel. An air inlet, a feeding port and a discharging port are arranged on the shell. The grinding assembly comprises coaxially arranged outer and inner cylinders. A plurality of circumferentially distributed grinding rollers are arranged in the inner cylinder. The circumferentially distributed grinding rollers are longitudinally distributed in a plurality of rows along the axis of the inner cylinder. The outer and inner cylinders are rotationally arranged in the shell. A plurality of grinding ring grooves corresponding to each row of grinding rollers are arranged in the outer cylinder. Raw materials enter the grinding ring grooves and corresponding grinding rollers through the feeding port. The driving assembly comprises an energy-saving motor and a reverse rotation mechanism connected with the outer and inner cylinders. The reverse rotation of the outer and inner cylinders driven by the energy-saving motor improves the grinding efficiency. Nitrogen is introduced between the outer and inner cylinders to inhibit the generation of crystallization water.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and more specifically, to a grinding device for raw materials used in the production of pyrazole oxalate based on an energy-saving motor. Background Technology

[0002] Currently, pyrazole herbicide plays a crucial role in agricultural production as an important pesticide intermediate. In the synthesis process of pyrazole herbicide, the grinding process of raw materials is an important step to ensure the smooth progress of subsequent reactions and the stability of product quality. However, the raw materials of pyrazole herbicide contain a variety of highly hygroscopic compounds, which will generate a large amount of water of crystallization during the traditional grinding process, causing the raw materials to stick and adhere to the grinding equipment, which is difficult to handle.

[0003] A search revealed a Chinese patent with publication number CN118950226A, which discloses a raw material grinding device for herbicide production. This patent uses a first motor to drive a pulverizer to crush the raw material. The crushed material falls into a screening frame, and when a second motor drives the screening frame to rotate, small particles that meet the standards pass through the sieve holes. Its main purpose is to integrate grinding and screening to improve the grinding quality. However, the ordinary motor used in this patent is more expensive and less efficient than energy-saving motors. At the same time, it cannot specifically handle the large amount of hygroscopic material in the raw material. When this raw material is ground using traditional grinding equipment, it will form crystal water. The presence of crystal water not only increases the viscosity of the raw material, causing the material to adhere to the inner wall of the grinding chamber and the surface of the grinding media during the grinding process, resulting in equipment blockage and cleaning difficulties, but also causes the raw material to agglomerate, reducing grinding efficiency and resulting in uneven particle size distribution, which affects the uniformity and yield of subsequent chemical reactions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art and provide a raw material grinding device for the production of pyrazole oxalate based on an energy-saving motor. The grinding efficiency is improved by setting the outer cylinder and the inner cylinder to rotate in opposite directions by the energy-saving motor, and nitrogen gas is introduced between the outer cylinder and the inner cylinder to suppress the generation of crystal water.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is a raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor, comprising:

[0006] A housing, wherein an air inlet, a feed inlet, and a discharge outlet are provided on the housing;

[0007] A grinding assembly includes an outer cylinder and an inner cylinder arranged coaxially. A plurality of circumferentially distributed grinding rollers are installed inside the inner cylinder. The circumferentially distributed grinding rollers are arranged in several rows along the axis of the inner cylinder. The outer cylinder and the inner cylinder are rotatably installed inside the housing. A plurality of grinding ring grooves corresponding to each row of grinding rollers are opened inside the outer cylinder. The raw material enters between the grinding ring grooves and the corresponding grinding rollers through the feed port.

[0008] The drive assembly includes an energy-saving motor and an anti-rotation mechanism that connects the outer cylinder and the inner cylinder respectively. The energy-saving motor is connected to the anti-rotation mechanism to drive the outer cylinder and the inner cylinder to rotate in opposite directions.

[0009] The nitrogen channel is adapted to divide the nitrogen gas introduced into the air inlet into two streams. One stream enters the outer cylinder to cool the outer cylinder, and the other stream enters the inner cylinder and contacts the grinding roller. The grinding roller has several fine holes to allow the nitrogen gas to be discharged and then directly contact the raw material.

[0010] Furthermore, the nitrogen channel includes a first air passage, a second air passage, a third air passage, and several fourth air passages corresponding to the grinding roller. The first air passage is located in the inner ring of the inner cylinder and communicates with the fourth air passage. The fourth air passage is located inside the inner cylinder, and the grinding roller is located in the corresponding fourth air passage. The second air passage is located between the outer cylinder and the inner cylinder, and the third air passage is located inside the outer cylinder. The second air passage communicates with the third air passage.

[0011] Furthermore, the grinding ring grooves include a first ring groove, a second ring groove, and a third ring groove arranged longitudinally from top to bottom. The depth of the first ring groove, the second ring groove, and the third ring groove gradually decreases, so that the distance between the corresponding grinding roller and itself gradually decreases.

[0012] Furthermore, the counter-rotating mechanism includes a drive shaft, a first one-way shaft, a timing belt, a connecting rod, a first driving gear, and a first driven gear;

[0013] One end of the drive shaft is connected to the output end of the energy-saving motor, and the other end of the drive shaft is connected to the inner cylinder through the first one-way shaft. The first drive gear is rotatably mounted on the housing, and a connecting rod is connected to the first drive gear. The synchronous belt is sleeved on the outside of the drive shaft and the connecting rod through the synchronous pulley. The first driven gear is fixedly sleeved on the outer circumferential surface of the outer cylinder, and the first driven gear meshes with the first drive gear.

[0014] Furthermore, a transmission sleeve is slidably disposed in the fourth air passage, a protective sleeve is disposed in the transmission sleeve, the grinding roller is rotatably mounted in the protective sleeve, a first reciprocating screw is rotatably mounted in the fourth air passage, the transmission sleeve is fitted outside the first reciprocating screw, and the first reciprocating screw is adapted to be driven to rotate so as to drive the transmission sleeve to move linearly back and forth along the axial direction of the first reciprocating screw.

[0015] A spacing adjustment mechanism is provided, which is adapted to be connected to the first reciprocating screw corresponding to the grinding roller to drive the first reciprocating screw to rotate, thereby changing the spacing between all the grinding rollers and the corresponding grinding ring grooves.

[0016] The transmission sleeve has a first drainage groove that penetrates through itself, and the protective sleeve has a second drainage groove that penetrates through itself. Both the first drainage groove and the second drainage groove are connected to the fourth air passage to facilitate the introduction of nitrogen into the grinding roller.

[0017] Furthermore, the spacing adjustment mechanism includes a drive motor, a second driving gear, internal and external gear rings, a plurality of second driven gears, a plurality of first driving bevel gears, and a plurality of first driven bevel gears. The second driven gears correspond to the grinding rollers that are evenly distributed around the top circumference, and the plurality of first driving bevel gears and the plurality of first driven bevel gears correspond to the plurality of grinding rollers respectively.

[0018] The drive motor is installed inside the inner cylinder. The second driving gear, the inner and outer gear rings, and the second driven gear are all rotatably installed inside the inner cylinder. The output end of the drive motor is connected to the second driving gear. The second driving gear meshes with the inner tooth portion of the inner and outer gear rings, and the second driven gear meshes with the outer tooth portion of the inner and outer gear rings.

[0019] A linkage rod is fixedly connected to the bottom of several second driven gears. The linkage rod is rotatably installed inside the inner cylinder. The first driving bevel gears corresponding to the longitudinal positions of the second driven gears are fixedly sleeved on the outer circumferential surface of the corresponding linkage rods. The first driven bevel gears are connected to the corresponding first reciprocating screws. The first driving bevel gears mesh with the first driven bevel gears.

[0020] Furthermore, the raw material grinding device for the production of pyrazole acetamiprid based on an energy-saving motor also includes a cleaning component, which includes a linear motion mechanism, a rotating ring, and several supports corresponding to the grinding rollers.

[0021] The bracket passes through the first drainage groove on the corresponding transmission sleeve and is connected to the protective sleeve, and covers the second drainage groove on the protective sleeve. The bracket is located in the fourth air passage. A through groove is provided on the bracket. The through groove is suitable for connecting the second drainage groove and the fourth air passage. The protective sleeve is slidably disposed in the transmission sleeve. A spring telescopic rod is provided between the transmission sleeve and the protective sleeve.

[0022] Each of the aforementioned supports is provided with a force-bearing part and a limiting part. The rotating ring is provided with a pressing part corresponding to each row of circumferentially distributed grinding rollers. The linear movement mechanism is connected to the rotating ring to drive the rotating ring to move linearly and dock with the support corresponding to each row of circumferentially distributed grinding rollers. When the rotating ring docks with the support, the pressing part is located between the limiting parts, and the pressing part compresses the force-bearing part, thereby pushing the support to produce displacement, thereby driving the grinding roller to move to contact the corresponding grinding ring groove.

[0023] The protective sleeve is provided with an inclined portion, which contacts the outer peripheral surface of the corresponding grinding roller to scrape off the residue on the outer peripheral surface of the grinding roller. The contact portion between the inclined portion and the grinding roller is provided with a plurality of cleaning holes, which are connected to the second drainage groove to allow a portion of nitrogen gas to be introduced into the cleaning holes.

[0024] Furthermore, the linear motion mechanism includes a second one-way shaft, a second reciprocating screw, a moving ring, and a guide rod. The second reciprocating screw is rotatably installed in the inner cylinder. The drive shaft is connected to the second reciprocating screw through the second one-way shaft. The first one-way shaft and the second one-way shaft are arranged in opposite directions. When the drive shaft rotates forward, it drives the inner cylinder to rotate. When the drive shaft rotates in reverse, it drives the second reciprocating screw to rotate.

[0025] The movable ring is assembled outside the second reciprocating screw. The second reciprocating screw is adapted to be driven to rotate so as to drive the movable ring to reciprocate linearly along the axis of the second reciprocating screw. A guide rod is fixedly connected inside the inner cylinder. The movable ring is slidably disposed outside the guide rod. The rotating ring is rotatably mounted outside the movable ring. The movable ring is adapted to drive the rotating ring to move linearly.

[0026] The contact area between the force-receiving part corresponding to the first annular groove, the force-receiving part corresponding to the second annular groove, and the force-receiving part corresponding to the third annular groove and the extrusion part gradually decreases, so as to change the displacement distance of the grinding roller corresponding to each force-receiving part after being extruded, thereby making the first annular groove, the second annular groove, and the third annular groove contact their respective corresponding grinding rollers.

[0027] Furthermore, the raw material grinding device for the production of pyrazole acetamiprid based on an energy-saving motor also includes an anti-caking component, which includes a barrier net, several outer rollers, and a rotating mechanism.

[0028] A transition area is provided between adjacent first and second annular grooves, and the barrier mesh is provided in the transition area. The barrier mesh is suitable for blocking the raw material that agglomerates after grinding in the first annular groove. Several outer rollers are circumferentially distributed above the barrier mesh.

[0029] The outer cylinder is equipped with several mounting plates corresponding to the outer roller. An inner roller is rotatably mounted on the mounting plate. The outer roller is fixedly sleeved on the outside of the corresponding inner roller. An extension plate is provided on the outer circumferential surface of the outer roller. The rotating mechanism is connected to the inner roller to drive the outer roller to rotate, thereby causing the extension plate to intermittently strike the barrier net to generate vibration.

[0030] Both the inner and outer rollers are hollow. The inner roller has several through-holes, and the outer roller has several through-holes. The third air passage has a corresponding flow divider pipe. The flow divider pipe is connected to the corresponding inner roller by a rotary seal. The flow divider pipe is adapted to introduce part of the nitrogen gas in the third air passage into the inner roller and discharge it through the flow divider holes. The extension plate is adapted to break up the agglomerated raw material remaining on the barrier net and introduce it into the distribution holes under rotation, so that the agglomerated raw material is further broken up in the outer roller.

[0031] Furthermore, the rotating mechanism includes a second driving bevel gear and several second driven bevel gears corresponding to the inner roller. The second driven bevel gears are connected to the corresponding inner rollers. The second driving bevel gear is fixedly sleeved on the outer circumferential surface of the inner cylinder, and the second driving bevel gear meshes with the second driven bevel gear.

[0032] By adopting the above technical solution, the present invention has the following beneficial effects:

[0033] 1. Through the design of the counter-rotating mechanism and nitrogen channel, the outer and inner cylinders rotate synchronously and in opposite directions under the drive of the counter-rotating mechanism, which increases the relative linear velocity and the number of times the material is sheared per unit time, thereby improving the crushing efficiency. The counter-rotation causes the material to form a vortex field in the grinding zone, and the particles repeatedly return to the grinding gap, extending the residence time and preventing coarse particles from escaping. The counter-movement causes the adhering material to be subjected to alternating shear force, making it difficult to form a stable adhesion layer on the surface of the grinding roller or grinding ring groove. At the same time, it shortens the single contact time, and the frictional heat distribution is more uniform, avoiding local overheating. In conjunction with the nitrogen channel, the outer and inner cylinders are cooled simultaneously, and part of the cooling is discharged through the grinding roller and directly acts on the raw material, avoiding the generation and release of crystal water.

[0034] 2. By setting up a spacing adjustment mechanism and a multi-stage annular groove structure, three different sized grinding spaces are formed when the groove depths of the first, second, and third annular grooves decrease while the corresponding grinding roller positions remain unchanged. This allows for segmented grinding of raw materials from coarse to fine without additional adjustments. After each stage of grinding, the material automatically moves to the next stage, improving the uniformity of grinding. The spacing adjustment mechanism can also drive all the grinding rollers to move uniformly, thereby changing the spacing between each grinding roller and the corresponding grinding annular groove to adapt to raw materials of different hardness or to change the grinding precision, while retaining the effect of multi-stage grinding.

[0035] 3. Through the arrangement of linear movement mechanism, rotating ring, and support structure, the linear movement mechanism drives the rotating ring to move linearly and dock with the support on the grinding roller corresponding to each grinding ring groove. The contact area between the first, second, and third ring grooves and the rotating ring is different, resulting in different degrees of compression after docking. When docking with the support corresponding to the deepest first ring groove, the contact area is large, the degree of compression is large, and the grinding roller moves a long distance, ultimately achieving the contact between the grinding roller and the first ring groove. Similarly, the third ring groove is the shallowest, and the corresponding grinding roller moves the shortest distance, ultimately also contacting the third ring groove. After the grinding roller contacts the corresponding grinding ring groove, the reverse rotation of the outer and inner cylinders adheres the residue in the grinding ring groove to the grinding roller. The grinding roller then scrapes off the residue through the inclined part. At the same time, the nitrogen gas sprayed from the cleaning hole can accelerate the scraping process of the residue.

[0036] 4. Due to the design of the barrier mesh and outer roller, the raw material processed in the first annular groove has larger particles than those in the second and third annular grooves. There is a risk of agglomeration during the process of falling into the second annular groove. Agglomerated raw material will cause great wear and tear on the grinding components during subsequent grinding and affect the product qualification rate. Therefore, the barrier mesh is set to block the agglomerated part. Then, the rotation of the outer roller will break up the agglomerated raw material and allow it to pass through the barrier mesh, thereby improving the grinding quality and avoiding shortening the life of the grinding components. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a schematic diagram of the outer cylinder structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the inner cylinder structure of the present invention;

[0040] Figure 4 This is a schematic plan view of the internal structure of the inner and outer cylinders of the present invention;

[0041] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the inner and outer cylinders of the present invention;

[0042] Figure 6 This is a schematic diagram of the spacing adjustment mechanism of the present invention. Figure 1 ;

[0043] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0044] Figure 8 This is a schematic diagram of the spacing adjustment mechanism of the present invention. Figure 2 ;

[0045] Figure 9 This is a schematic diagram of the internal structure of the inner cylinder of the present invention;

[0046] Figure 10 For the present invention Figure 9 Enlarged view at point B in the middle;

[0047] Figure 11 This is a schematic diagram of the outer roller structure of the present invention;

[0048] Figure 12 This is a schematic diagram of the inner roller structure of the present invention;

[0049] Figure 13 For the present invention Figure 4 Enlarged view at point C;

[0050] In the diagram: 1. Shell; 11. Air inlet; 12. Feed inlet; 13. Discharge outlet; 14. Outer cylinder; 15. Inner cylinder; 16. Grinding roller; 17. Energy-saving motor; 18. Drive shaft; 19. First one-way shaft; 110. Synchronous belt; 111. Connecting rod; 112. First driving gear; 113. First driven gear; 114. First air passage; 115. Second air passage; 116. Third air passage; 117. Fourth air passage; 118. Grinding ring groove; 119. First ring groove; 120. Second ring groove; 121. Third ring groove;

[0051] 2. Spacing adjustment mechanism; 21. Internal and external gear rings; 22. Drive motor; 23. Second driving gear; 24. Second driven gear; 25. Linkage rod; 26. First driving bevel gear; 27. First driven bevel gear; 28. First reciprocating lead screw; 29. ​​Transmission sleeve; 210. Protective sleeve; 211. Fine hole; 212. First drainage groove; 213. Second drainage groove;

[0052] 3. Cleaning assembly; 31. Second one-way shaft; 32. Second reciprocating screw; 33. Moving ring; 34. Rotating ring; 35. Guide rod; 36. Extrusion part; 37. Bracket; 38. Spring telescopic rod; 39. Inclined part; 310. Cleaning hole; 311. Force-receiving part; 312. Limiting part; 313. Through groove;

[0053] 4. Anti-caking component; 41. Mounting plate; 42. Outer roller; 43. Extension plate; 44. Inner roller; 45. Second driven bevel gear; 46. Second driving bevel gear; 47. Transition area; 48. Diverter pipe; 49. Barrier net. Detailed Implementation

[0054] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0055] Example 1

[0056] like Figure 1-3 , Figure 7 As shown, a raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor includes:

[0057] The housing 1 is provided with an air inlet 11, a feed inlet 12 and a discharge outlet 13.

[0058] The grinding assembly includes an outer cylinder 14 and an inner cylinder 15 arranged coaxially. Several circumferentially distributed grinding rollers 16 are installed inside the inner cylinder 15. The circumferentially distributed grinding rollers 16 are arranged in several rows along the axis of the inner cylinder 15. The outer cylinder 14 and the inner cylinder 15 are rotatably installed inside the housing 1. Several grinding ring grooves 118 corresponding to each row of grinding rollers 16 are opened inside the outer cylinder 14. The raw material enters between the grinding ring grooves 118 and the corresponding grinding rollers 16 through the feed port 12.

[0059] The drive assembly includes an energy-saving motor 17 and a counter-rotating mechanism that connects the outer cylinder 14 and the inner cylinder 15 respectively. The energy-saving motor 17 is connected to the counter-rotating mechanism to drive the outer cylinder 14 and the inner cylinder 15 to rotate in opposite directions.

[0060] The nitrogen channel is adapted to divide the nitrogen introduced into the inlet 11 into two streams. One stream enters the outer cylinder 14 to cool the outer cylinder 14, and the other stream enters the inner cylinder 15 and contacts the grinding roller 16. The grinding roller 16 has several fine holes 211 to allow the nitrogen to be discharged and then directly contact the raw material.

[0061] like Figure 4 As shown, the nitrogen channel includes a first air passage 114, a second air passage 115, a third air passage 116, and several fourth air passages 117 corresponding to the grinding roller 16. The first air passage 114 is located in the inner ring of the inner cylinder 15 and communicates with the fourth air passage 117. The fourth air passage 117 is located inside the inner cylinder 15, and the grinding roller 16 is located in the corresponding fourth air passage 117. The second air passage 115 is located between the outer cylinder 14 and the inner cylinder 15. The third air passage 116 is located inside the outer cylinder 14, and the second air passage 115 communicates with the third air passage 116.

[0062] like Figure 5As shown, the plurality of grinding ring grooves 118 include a first ring groove 119, a second ring groove 120 and a third ring groove 121 arranged longitudinally from top to bottom. The groove depths of the first ring groove 119, the second ring groove 120 and the third ring groove 121 gradually become shallower, so that the distance between the corresponding grinding roller 16 and itself gradually becomes smaller.

[0063] like Figure 2-3 As shown, the counter-rotating mechanism includes a drive shaft 18, a first one-way shaft 19, a timing belt 110, a connecting rod 111, a first driving gear 112, and a first driven gear 113;

[0064] One end of the drive shaft 18 is connected to the output end of the energy-saving motor 17, and the other end of the drive shaft 18 is connected to the inner cylinder 15 through the first one-way shaft 19. The first drive gear 112 is rotatably mounted on the housing 1. A connecting rod 111 is connected to the first drive gear 112. The synchronous belt 110 is sleeved on the outside of the drive shaft 18 and the connecting rod 111 through the synchronous pulley. The first driven gear 113 is fixedly sleeved on the outer circumferential surface of the outer cylinder 14. The first driven gear 113 meshes with the first drive gear 112.

[0065] like Figure 6-8 As shown, a transmission sleeve 29 is slidably disposed in the fourth air passage 117, and a protective sleeve 210 is disposed inside the transmission sleeve 29. The grinding roller 16 is rotatably installed inside the protective sleeve 210. A first reciprocating screw 28 is rotatably installed in the fourth air passage 117. The transmission sleeve 29 is assembled outside the first reciprocating screw 28. The first reciprocating screw 28 is adapted to be driven to rotate so as to drive the transmission sleeve 29 to move linearly back and forth along the axial direction of the first reciprocating screw 28.

[0066] The spacing adjustment mechanism 2 is adapted to be connected to the first reciprocating screw 28 corresponding to the grinding roller 16 so as to drive the first reciprocating screw 28 to rotate, thereby changing the spacing between all the grinding rollers 16 and the corresponding grinding ring grooves 118.

[0067] The transmission sleeve 29 has a first drainage groove 212 that penetrates through itself, and the protective sleeve 210 has a second drainage groove 213 that penetrates through itself. Both the first drainage groove 212 and the second drainage groove 213 are connected to the fourth air passage 117 to facilitate the introduction of nitrogen into the grinding roller 16.

[0068] like Figure 6 , Figure 8 As shown, the spacing adjustment mechanism 2 includes a drive motor 22, a second drive gear 23, an inner and outer gear ring 21, a plurality of second driven gears 24, a plurality of first drive bevel gears 26 and a plurality of first driven bevel gears 27. The second driven gears 24 correspond to the top row of circumferentially distributed grinding rollers 16, and the plurality of first drive bevel gears 26 and the plurality of first driven bevel gears 27 correspond to the plurality of grinding rollers 16 respectively.

[0069] The drive motor 22 is installed inside the inner cylinder 15. The second drive gear 23, the inner and outer gear rings 21 and the second driven gear 24 are all rotatably installed inside the inner cylinder 15. The output end of the drive motor 22 is connected to the second drive gear 23. The second drive gear 23 meshes with the inner tooth portion of the inner and outer gear rings 21, and the second driven gear 24 meshes with the outer tooth portion of the inner and outer gear rings 21.

[0070] A number of second driven gears 24 are fixedly connected to the bottom of each of them. The linkage rods 25 are rotatably installed inside the inner cylinder 15. The first driving bevel gears 26 corresponding to the longitudinal position of the second driven gears 24 are all fixedly sleeved on the outer circumferential surface of the corresponding linkage rods 25. The first driven bevel gears 27 are connected to the corresponding first reciprocating screws 28. The first driving bevel gears 26 and the first driven bevel gears 27 mesh.

[0071] It should be noted that the assembly method between the transmission sleeve 29 and the first reciprocating screw 28 can be as follows: a slider is set on the transmission sleeve 29, and the slider is set in the helical groove of the first reciprocating screw 28. The rotation of the first reciprocating screw 28 causes the helical groove to push the slider to make linear motion, thereby driving the transmission sleeve 29 to move. The specific principle of the first reciprocating screw 28 driving the transmission sleeve 29 to move linearly and other assembly methods are existing technologies and will not be elaborated on here.

[0072] The working principle of this embodiment is as follows:

[0073] When in use, the energy-saving motor 17 is started to rotate forward and drive the drive shaft 18 to rotate. The drive shaft 18 drives the inner cylinder 15 to rotate forward. At the same time, the synchronous belt 110 drives the connecting rod 111 and the first drive gear 112 to rotate forward. The first drive gear 112 drives the first driven gear 113 to rotate in reverse through meshing with the first driven gear 113, thereby realizing the outer cylinder 14 to rotate in reverse. At this time, the outer cylinder 14 is rotating in reverse, while the inner cylinder 15 is rotating forward. The two are in a state of opposite rotation, and the rotation speed of the inner cylinder 15 is higher than the rotation speed of the outer cylinder 14.

[0074] During the process of the outer cylinder 14 and the inner cylinder 15 rotating in opposite directions, raw materials are added through the feed port 12. After entering the shell 1 through the feed port 12, the raw materials fall on the top of the inner cylinder 15. Under the rotation of the inner cylinder 15, they are thrown between the inner cylinder 15 and the outer cylinder 14 and enter the grinding ring groove 118 to contact the grinding roller 16 on the inner cylinder 15. The raw materials are repeatedly squeezed by the grinding roller 16 in the grinding ring groove 118 to form a grinding effect.

[0075] To address the hygroscopic nature of the raw materials used in the production of pyrazole-methyl, nitrogen is introduced during the grinding process to prevent excessive formation of water of crystallization. The conveying component within the external nitrogen storage device is activated, introducing nitrogen through inlet 11 into the outer cylinder 14 and inner cylinder 15. The nitrogen storage device and conveying component are not shown in the diagram and are existing technology, therefore they will not be described in detail here. After entering the outer shell, the nitrogen is divided into two streams, such as... Figure 5 As shown, some nitrogen gas moves directly upwards into the first gas channel 114, while another portion flows to both sides into the second gas channel 115 due to the influence of the outer shell structure. The second gas channel 115 is connected to the third gas channel 116 inside the outer cylinder 14, allowing nitrogen gas to flow directly into the outer cylinder 14 and cool the entire outer cylinder 14. The nitrogen gas passing through the outer cylinder 14 flows out to the outside of the inner cylinder 15 and finally enters the gap between the outer cylinder 14 and the inner cylinder 15 to cool the hygroscopic material being ground. The nitrogen gas entering the second gas channel 115 will flow along the openings on the inner wall of the inner cylinder 15 corresponding to each grinding roller 16. The fourth air passage 117 contacts the grinding roller 16. Several fine holes 211 are opened on the surface of the grinding roller 16. After nitrogen enters the fine holes 211, it is discharged on the outer surface of the grinding roller 16. The discharged nitrogen can directly contact the hygroscopic raw material, which greatly reduces the risk of crystal water generation. At the same time, the discharged nitrogen will form a certain degree of gas film on the surface of the grinding roller 16, which reduces the problem of raw material sticking to the surface of the grinding roller 16. It should be noted that the fine holes 211 in the attached figure are only schematic. The actual size is controlled to allow nitrogen to pass through. The continuous discharge of nitrogen can avoid the material from clogging the fine holes 211 and accidentally entering during the grinding process.

[0076] The counter-rotation of the outer cylinder 14 and the inner cylinder 15 improves the grinding efficiency of the raw materials. The counter-rotation generates shear force on the raw materials, which, combined with the extrusion force generated by the grinding roller 16 itself, makes the grinding methods more diverse, thereby improving grinding efficiency. At the same time, the two opposing airflows generated by the counter-rotation cause the raw materials to repeatedly fold back and forth in the grinding gap, increasing the residence time of the raw materials and allowing them to be ground multiple times, preventing large particles from escaping. Similarly, the nitrogen gas introduced between the outer cylinder 14 and the inner cylinder 15 is also disrupted by the counter-rotation, increasing the contact area between the nitrogen gas and the raw materials and improving the cooling effect. At the same time, the counter-rotation shortens the single contact time, avoiding local hot spots and further inhibiting agglomeration and component degradation. Furthermore, the periodic shearing force generated by the reverse rotation breaks down the material adhesion between the material and the grinding roller 16 / grinding ring groove 118 caused by the liquid generated during grinding, thereby reducing the adhesion residue rate. After the raw material is ground, it will fall and accumulate at the bottom of the housing 1 in the area for placing the material. During the raw material grinding process, the valve in the discharge port 13 can be closed to prevent nitrogen leakage. When the valve is opened to take out the ground material, the used nitrogen is discharged at the same time. However, since nitrogen needs to be continuously replenished to meet the required effect, when the nitrogen inside the housing 1 is saturated, the valve can be opened multiple times at regular intervals to exhaust the gas, so as to ensure that the nitrogen is in a flowing state inside the housing 1.

[0077] To further improve the uniformity of grinding, the grinding ring groove 118 is divided into three levels: the first ring groove 119, the second ring groove 120, and the third ring groove 121. The depth of the three grooves gradually decreases. When the position of the grinding roller 16 is uniform, the gap between the first ring groove 119 and the corresponding grinding roller 16 is the largest. Similarly, the gap between the third ring groove 121 and the corresponding grinding roller 16 is the smallest, which means the grinding precision is the highest. The raw material passes through the first ring groove 119, the second ring groove 120, and the third ring groove 121 in sequence for three-stage grinding. After each level of grinding is completed, the raw material can automatically fall into the next level of grinding, reducing manual intervention and the need for continuous adjustment of grinding precision.

[0078] To address the characteristics of different raw materials and varying grinding precision, a spacing adjustment mechanism 2 is provided. This mechanism synchronously moves all the grinding rollers 16. Specifically, the drive motor 22 is activated, driving the second driving gear 23 to rotate. The meshing of the second driving gear 23 with the inner teeth of the inner and outer gear rings 21 causes the inner and outer gear rings 21 to rotate. The meshing of the outer teeth of the inner and outer gear rings 21 with the second driven gear 24 causes the second driven gear 24 to rotate. When the second driven gear 24 rotates, it drives the connecting rod 25 connected to it to rotate. Several first driving bevel gears 26 fixedly mounted on the connecting rod 25 also rotate accordingly. The grinding rollers 16 are housed within a protective sleeve 210, which is housed within a transmission sleeve 29. The transmission sleeve 29 contains a first reciprocating screw 28 rotatably mounted within the fourth air passage 117 via a fixed plate. The first driven bevel gears 26 connected to the first reciprocating screw 28... 7 meshes with the first driving bevel gear 26, thus driving the first driven bevel gear 27 to rotate, and the first reciprocating screw 28 also rotates accordingly. Under the rotation of the first reciprocating screw 28, the transmission sleeve 29 is driven to move linearly, thereby changing the position of the grinding roller 16. In this way, the distance between the grinding roller 16 and the corresponding grinding ring groove 118 can be increased or decreased by the continuous rotation of the drive motor 22 to meet the actual needs of various grinding processes. To meet the grinding accuracy requirements, the first reciprocating screw 28 can be a high-precision model. Since all the grinding rollers 16 are uniformly displaced, the distance between each grinding roller 16 and the corresponding first ring groove 119, second ring groove 120 and third ring groove 121 is adjusted synchronously. Therefore, after adjustment, the segmented grinding adjustment can still be met. The limit distance of adjustment is that the third ring groove 121 makes slight contact with the corresponding grinding roller 16 to avoid impact of the grinding roller 16.

[0079] Since the first reciprocating screw 28 is used to move the grinding roller 16, the drive motor 22 can be kept running for a long time when needed, so that all the grinding rollers 16 are in a long-term reciprocating motion. During this process, the rotation of the outer cylinder 14 and the inner cylinder 15 is not affected, but the reciprocating motion of the grinding roller 16 can intermittently squeeze the material in the grinding ring groove 118, which has a crushing effect, and can accelerate the crushing of raw materials. After crushing, the material can be continuously ground, or it can be directly crushed and ground, which improves the overall processing speed and makes the processing methods more diverse.

[0080] When the grinding roller 16 is located inside the protective sleeve 210 and the transmission sleeve 29, the nitrogen in the fourth air passage 117 is not blocked by the setting of the second guide groove 213 on the protective sleeve 210 and the first guide groove 212 on the transmission sleeve 29, and can still contact the grinding roller 16 and then contact the raw material after being discharged through the grinding roller 16.

[0081] Example 2

[0082] like Figure 9-10 As shown, this embodiment further includes the following structure based on embodiment one: the raw material grinding device for the production of pyrazole acetamiprid based on an energy-saving motor also includes a cleaning component 3, which includes a linear moving mechanism, a rotating ring 34 and several supports 37 corresponding to the grinding roller 16.

[0083] The bracket 37 passes through the first drainage groove 212 on the corresponding transmission sleeve 29 and is connected to the protective sleeve 210, and covers the second drainage groove 213 on the protective sleeve 210. The bracket 37 is located in the fourth air passage 117. A through groove 313 is provided on the bracket 37. The through groove 313 is suitable for connecting the second drainage groove 213 and the fourth air passage 117. The protective sleeve 210 is slidably disposed in the transmission sleeve 29. A spring telescopic rod 38 is provided between the transmission sleeve 29 and the protective sleeve 210.

[0084] Each of the brackets 37 is provided with a force-bearing part 311 and a limiting part 312. The rotating ring 34 is provided with a pressing part 36 corresponding to each row of circumferentially distributed grinding rollers 16. The linear movement mechanism is connected to the rotating ring 34 to drive the rotating ring 34 to move linearly and dock with the brackets 37 corresponding to each row of circumferentially distributed grinding rollers 16. When the rotating ring 34 docks with the bracket 37, the pressing part 36 is located between the limiting parts 312, and the pressing part 36 presses the force-bearing part 311, thereby pushing the bracket 37 to move and drive the grinding roller 16 to contact the corresponding grinding ring groove 118.

[0085] The protective sleeve 210 is provided with an inclined portion 39, which contacts the outer peripheral surface of the corresponding grinding roller 16 to scrape off the residue on the outer peripheral surface of the grinding roller 16. A plurality of cleaning holes 310 are provided on the contact portion between the inclined portion 39 and the grinding roller 16. The cleaning holes 310 are connected to the second drainage groove 213 to introduce part of the nitrogen into the cleaning holes 310.

[0086] like Figure 10 As shown, the linear motion mechanism includes a second one-way shaft 31, a second reciprocating screw 32, a moving ring 33, and a guide rod 35. The second reciprocating screw 32 is rotatably installed in the inner cylinder 15. The drive shaft 18 is connected to the second reciprocating screw 32 through the second one-way shaft 31. The first one-way shaft 19 is arranged in the opposite direction to the second one-way shaft 31. When the drive shaft 18 rotates forward, it drives the inner cylinder 15 to rotate. When the drive shaft 18 rotates in reverse, it drives the second reciprocating screw 32 to rotate.

[0087] The movable ring 33 is assembled outside the second reciprocating screw 32. The second reciprocating screw 32 is adapted to be driven to rotate so as to drive the movable ring 33 to reciprocate linearly along the axis of the second reciprocating screw 32. A guide rod 35 is fixedly connected inside the inner cylinder 15. The movable ring 33 is slidably disposed outside the guide rod 35. The rotating ring 34 is rotatably mounted outside the movable ring 33. The movable ring 33 is adapted to drive the rotating ring 34 to move linearly.

[0088] The contact area between the force-receiving part 311 corresponding to the first annular groove 119, the force-receiving part 311 corresponding to the second annular groove 120, and the force-receiving part 311 corresponding to the third annular groove 121 and the extrusion part 36 gradually decreases, so as to change the displacement distance of the corresponding grinding roller 16 after each force-receiving part 311 is extruded, so that the first annular groove 119, the second annular groove 120 and the third annular groove 121 respectively come into contact with their respective corresponding grinding rollers 16.

[0089] The working principle of this embodiment is as follows:

[0090] To avoid the problem of slight residues remaining in the grinding ring grooves 118 that cannot be cleaned after long-term operation, a cleaning component 3 is set up to drive each grinding roller 16 to abut against the corresponding grinding ring groove 118. The grinding roller 16 scrapes off the residues in the grinding ring grooves 118 or attaches the residues in the grinding ring grooves 118 to the grinding roller 16, and then the grinding roller 16 performs self-cleaning.

[0091] Since the limit position of all grinding rollers 16 being moved by the spacing adjustment mechanism 2 is when the third annular groove 121 abuts against the corresponding grinding roller 16, it is impossible to achieve that all grinding rollers 16 abut against their respective grinding annular grooves 118. Therefore, the protective sleeve 210 is changed to be slidably set in the transmission sleeve 29, and a spring telescopic rod 38 is set between the protective sleeve 210 and the transmission sleeve 29. This setting not only retains the fact that the transmission sleeve 29 can drive the protective sleeve 210 and the grinding rollers 16 to move as a whole, but also realizes that the protective sleeve 210 and the grinding rollers 16 can move on their own when the transmission sleeve 29 is stationary.

[0092] During cleaning, firstly, all grinding rollers 16 are reset using the spacing adjustment mechanism 2. Then, the energy-saving motor 17 is continuously rotated forward until the inner cylinder 15 is in its initial position. Afterward, the energy-saving motor 17, which was originally rotating forward, is switched to reverse rotation. When the drive shaft 18 reverses, due to the setting of the first one-way shaft 19, it cannot drive the inner cylinder 15 to continue rotating. Part of the drive shaft 18 passes through and extends into the inner cylinder 15, but the extended part does not contact the inner cylinder 15. This part is connected to the second reciprocating screw 32 via the second one-way shaft 31, allowing the drive shaft 18 to drive the second reciprocating screw 32 to rotate. During the rotation of the second reciprocating screw 32, it drives the moving ring 33 mounted on its exterior to move linearly. During the linear movement of the moving ring 33, it moves along the guide rod 35. The internal sliding of the guide rod 35 prevents the moving ring 33 from rotating under the drive of the second reciprocating screw 32. The linearly moving moving ring 33 will drive the rotating ring 34 mounted on its outside to move synchronously. Each protective sleeve 210 corresponding to the grinding roller 16 is provided with a bracket 37. The bracket 37 is located inside the fourth air passage 117 and extends to the outside of the fourth air passage 117. After the inner cylinder 15 is reset, the position of each bracket 37 corresponds to the position of the pressing part 36 on the rotating ring 34. After the rotating ring 34 is driven to move linearly, it will dock with the bracket 37 of each layer to clean the grinding ring groove 118 layer by layer. The specific docking process is as follows: the pressing part 36 on the moving rotating ring 34 presses the force-bearing part 311 of the bracket 37. The rotating ring 34 moves until the extrusion section 36 enters the limiting section 312 of the support 37. The force-bearing section 311, after being extruded by the extrusion section 36, drives the support 37 to move. As the support 37 moves, it also drives the protective sleeve 210 and the grinding roller 16 to move. Both the upper and lower sides of the force-bearing section 311 are inclined to facilitate the extrusion section 36's extrusion. When the extrusion is complete, the corresponding grinding roller 16 abuts against the corresponding grinding ring groove 118. At this point, the energy-saving motor 17 stops rotating, and the extrusion section 36 remains in the limiting section 312. The energy-saving motor 17 is then restarted to rotate forward, driving the outer cylinder 14 and inner cylinder 15 to continue rotating in the opposite direction. Because the grinding roller 16 has already abutted against the corresponding grinding ring groove 118 under the action of the rotating ring 34, therefore… The grinding roller 16 can treat the residue in the grinding ring groove 118. During this time, the grinding roller 16 rotates due to the rotation of the outer cylinder 14 and the inner cylinder 15. When the grinding roller 16 rotates, it contacts the inclined portion 39 on the protective sleeve 210. The inclined portion 39 scrapes off the residue adhering to the grinding roller 16. Simultaneously, a through groove 313 is provided in the bracket 37, through which nitrogen gas enters the second drainage groove 213. Part of the nitrogen gas in the second drainage groove 213 is discharged through the fine hole 211, simultaneously assisting in the removal of residue from the surface of the grinding roller 16. Some of the nitrogen enters the cleaning hole 310 in the protective sleeve 210. When the nitrogen gas is discharged through the cleaning hole 310, it works in conjunction with the scraping action of the inclined portion 39 to quickly blow off the residue, achieving the cleaning purpose.It should be noted that when the extrusion section 36 is within the limiting section 312, the bracket 37 rotates along with the inner cylinder 15, which can drive the rotating ring 34 to rotate. This is because the rotating ring 34 is rotatably mounted on the moving ring 33; the rotating ring 34 can both rotate and move linearly with the moving ring 33.

[0093] Since the distances between the first annular groove 119, the second annular groove 120, and the third annular groove 121 and their corresponding grinding rollers 16 are all different, the contact areas between the force-bearing part 311 and the pressing part 36 on the support 37 corresponding to the first annular groove 119, the second annular groove 120, and the third annular groove 121 are also different. The larger the contact area, the greater the distance the roller moves after being pressed by the pressing part 36. The contact area between the force-bearing part 311 and the pressing part 36 corresponding to the third annular groove 121 is the smallest, and the roller moves the least distance after being pressed by the pressing part 36. The shortest moving distance is achieved when the grinding roller 16 finally contacts the third ring groove 121 to complete the above cleaning steps. The rotating ring 34 moves in a straight line and docks with the support 37 of each layer to achieve the effect of cleaning layer by layer. After all cleaning is completed, the rotating ring 34 can be reset by the continuous rotation of the second reciprocating screw 32. The scraped residual material will continue to fall to the next layer and finally be discharged through the discharge port 13. In order to avoid the residue from mixing with the required material, the entire cleaning work needs to be carried out after the ground material is taken out through the discharge port 13.

[0094] Example 3

[0095] like Figure 11-13 As shown, this embodiment further includes the following structure based on embodiment one: the raw material grinding device for the production of pyrazole acetamiprid based on an energy-saving motor also includes an anti-caking component 4, which includes a barrier net 49, several outer rollers 42 and a rotating mechanism.

[0096] A transition area 47 is provided between adjacent first annular groove 119 and second annular groove 120. A barrier net 49 is provided in the transition area 47. The barrier net 49 is suitable for blocking the raw material that has agglomerated after grinding in the first annular groove 119. Several outer rollers 42 are circumferentially distributed above the barrier net 49.

[0097] A number of mounting plates 41 corresponding to the outer roller 42 are installed on the outer cylinder 14. An inner roller 44 is rotatably mounted on the mounting plate 41. The outer roller 42 is fixedly sleeved on the outside of the corresponding inner roller 44. An extension plate 43 is provided on the outer circumferential surface of the outer roller 42. The rotating mechanism is connected to the inner roller 44 to drive the outer roller 42 to rotate, thereby causing the extension plate 43 to intermittently strike the barrier net 49 to generate vibration.

[0098] Both the inner roller 44 and the outer roller 42 are hollow. The inner roller 44 has several through-holes, and the outer roller 42 has several through-holes. The third air passage 116 is provided with a corresponding flow divider 48 to the inner roller 44. The flow divider 48 is connected to the corresponding inner roller 44 by a rotary seal. The flow divider 48 is suitable for introducing part of the nitrogen in the third air passage 116 into the inner roller 44 and discharging it through the flow divider holes. The extension plate 43 is suitable for breaking up the agglomerated raw material remaining on the barrier net 49 under rotation and introducing it into the distribution holes, so that the agglomerated raw material is further broken up in the outer roller 42.

[0099] like Figure 13 As shown, the rotating mechanism includes a second driving bevel gear 46 and several second driven bevel gears 45 corresponding to the inner roller 44. The second driven bevel gears 45 are connected to the corresponding inner roller 44. The second driving bevel gear 46 is fixedly sleeved on the outer circumferential surface of the inner cylinder 15. The second driving bevel gear 46 and the second driven bevel gear 45 mesh with each other.

[0100] The working principle of this embodiment is as follows:

[0101] Because a segmented grinding method is adopted, the raw material particles that are about to enter the second annular groove 120 for further grinding after being ground in the first annular groove 119 are relatively large. In order to prevent the large particles from agglomerating during the process of entering the second annular groove 120, a barrier mesh 49 is set in the transition area 47 between the first annular groove 119 and the second annular groove 120. The aperture of the barrier mesh 49 allows the raw material that has not agglomerated after normal grinding to pass through, while the agglomerated raw material will stay on the barrier mesh 49.

[0102] Above the barrier net 49, an outer roller 42 is provided that moves synchronously with the outer cylinder 14. Inside the outer roller 42, an inner roller 44 is provided. The inner roller 44 is provided with a second driven bevel gear 45 that meshes with the second driving bevel gear 46 provided on the inner cylinder 15. This achieves the effect that while the outer roller 42 revolves around the inner cylinder 15 with the outer cylinder 14, it also rotates on its own under the drive of the bevel gear. The extension plate 43 provided on the outer roller 42 can intermittently squeeze the barrier net 49 under its own rotation, thereby causing the barrier net 49 to vibrate. The vibration accelerates the passage of unagglomerated raw materials and can also disperse some slightly agglomerated raw materials before they pass through the barrier net 49.

[0103] Some of the more severely agglomerated raw materials are broken up by the rotating extension plate 43. After being broken up, the material that meets the requirements can pass through the barrier net 49. The outer roller 42 is provided with several distribution holes. The distribution holes adjacent to the extension plate 43 are larger than the other distribution holes. Raw materials that still do not meet the requirements after initial crushing will enter the larger distribution holes under the drive of the extension plate 43. The remaining smaller distribution holes are for particles that meet the requirements. Therefore, after the raw materials enter the outer roller 42 through the larger distribution holes, they cannot pass through the smaller distribution holes before being completely broken up into particles that meet the requirements. They can only leak out through the larger distribution holes. Raw materials that meet the requirements but accidentally enter the outer roller 42 can be discharged through any distribution hole. After the agglomerated raw materials enter the outer roller 42, the rotation of the outer roller 42 causes the agglomerated raw materials to continuously roll and collide inside the outer roller 42 until they are broken up and discharged through the smaller distribution holes and through the barrier net 49.

[0104] To prevent agglomerated raw materials from leaking out of the outer roller 42 through the large distribution hole without being broken up, the inner roller 44 is connected to the diversion pipe 48 via a rotating connector. The diversion pipe 48 introduces part of the nitrogen gas from the third air passage 116 into the inner roller 44. The nitrogen gas is discharged into the interior of the outer roller 42 through the diversion hole on the inner roller 44. The nitrogen gas in the outer roller 42 is turbulent due to the rotation of the outer roller 42. This turbulence causes the agglomerated raw materials to move irregularly and accelerate within the outer roller 42, thus speeding up the breaking up of the agglomerates. To minimize the leakage of agglomerated raw materials through the larger distribution holes, if agglomerated raw materials still leak through the larger distribution holes despite the protection of nitrogen turbulence, the outer roller 42 and the extension plate 43 can repeatedly operate on the leaked agglomerated raw materials by rotating until they can pass through the barrier net 49 normally. The raw materials on the entire barrier net 49 can be broken up by several circumferentially distributed outer rollers 42. This strict control of agglomerated raw materials can reduce the wear of subsequent grinding parts and improve the quality of the final product.

[0105] Due to the setting of the barrier screen 49, when the grinding work is completed and the cleaning work is carried out regularly, the larger residues scraped off will fall on the barrier screen 49 and cannot be discharged directly by falling downwards naturally. At this time, the outer roller 42 can process the larger residues by breaking them up. The processed residues can pass through the barrier screen 49 and be discharged naturally.

[0106] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor, characterized in that, include: The housing (1) is provided with an air inlet (11), a feed inlet (12) and a discharge outlet (13). The grinding assembly includes an outer cylinder (14) and an inner cylinder (15) arranged coaxially. A number of circumferentially distributed grinding rollers (16) are installed in the inner cylinder (15). The circumferentially distributed grinding rollers (16) are arranged in several rows along the axis of the inner cylinder (15). The outer cylinder (14) and the inner cylinder (15) are rotatably installed in the housing (1). A number of grinding ring grooves (118) corresponding to each row of grinding rollers (16) are opened in the outer cylinder (14). The raw material enters the grinding ring groove (118) and the corresponding grinding roller (16) through the feed port (12). The drive assembly includes an energy-saving motor (17) and an anti-rotation mechanism that connects the outer cylinder (14) and the inner cylinder (15) respectively. The energy-saving motor (17) is connected to the anti-rotation mechanism to drive the outer cylinder (14) and the inner cylinder (15) to rotate in opposite directions. The nitrogen channel is adapted to divide the nitrogen gas introduced into the air inlet (11) into two streams. One stream enters the outer cylinder (14) to cool the outer cylinder (14), and the other stream enters the inner cylinder (15) and contacts the grinding roller (16). The grinding roller (16) has several fine holes (211) to allow the nitrogen gas to be discharged and then directly contact the raw material. The nitrogen channel includes a first air passage (114), a second air passage (115), a third air passage (116), and several fourth air passages (117) corresponding to the grinding roller (16). The first air passage (114) is located in the inner ring of the inner cylinder (15) and communicates with the fourth air passage (117). The fourth air passage (117) is located inside the inner cylinder (15), and the grinding roller (16) is located inside the corresponding fourth air passage (117). The second air passage (115) is located between the outer cylinder (14) and the inner cylinder (15). The third air passage (116) is located inside the outer cylinder (14), and the second air passage (115) communicates with the third air passage (116). A transmission sleeve (29) is slidably disposed in the fourth air passage (117), and a protective sleeve (210) is disposed in the transmission sleeve (29). The grinding roller (16) is rotatably installed in the protective sleeve (210). A first reciprocating screw (28) is rotatably installed in the fourth air passage (117). The transmission sleeve (29) is assembled on the outside of the first reciprocating screw (28). The first reciprocating screw (28) is adapted to be driven to rotate so as to drive the transmission sleeve (29) to move linearly back and forth along the axial direction of the first reciprocating screw (28). The transmission sleeve (29) has a first drainage groove (212) that penetrates itself, and the protective sleeve (210) has a second drainage groove (213) that penetrates itself. Both the first drainage groove (212) and the second drainage groove (213) are connected to the fourth air passage (117) to facilitate the introduction of nitrogen into the grinding roller (16). It also includes a cleaning component (3), which includes a linear motion mechanism, a rotating ring (34) and several supports (37) corresponding to the grinding roller (16). The bracket (37) passes through the first drainage groove (212) on the corresponding transmission sleeve (29) and is connected to the protective sleeve (210), and covers the second drainage groove (213) on the protective sleeve (210). The bracket (37) is located in the fourth air passage (117). A through groove (313) is provided on the bracket (37). The through groove (313) is suitable for connecting the second drainage groove (213) and the fourth air passage (117). The protective sleeve (210) is slidably disposed in the transmission sleeve (29). A spring telescopic rod (38) is provided between the transmission sleeve (29) and the protective sleeve (210). Each of the brackets (37) is provided with a force-receiving part (311) and a limiting part (312). The rotating ring (34) is provided with a pressing part (36) corresponding to each row of circumferentially distributed grinding rollers (16). The linear movement mechanism is connected to the rotating ring (34) to drive the rotating ring (34) to move linearly and dock with the brackets (37) corresponding to each row of circumferentially distributed grinding rollers (16). When the rotating ring (34) docks with the bracket (37), the pressing part (36) is located between the limiting parts (312), and the pressing part (36) squeezes the force-receiving part (311), thereby pushing the bracket (37) to generate displacement, thereby driving the grinding roller (16) to move to contact the corresponding grinding ring groove (118). The protective sleeve (210) is provided with an inclined portion (39), which contacts the outer peripheral surface of the corresponding grinding roller (16) to scrape off the residue on the outer peripheral surface of the grinding roller (16). A plurality of cleaning holes (310) are provided on the contact portion between the inclined portion (39) and the grinding roller (16). The cleaning holes (310) are connected to the second drainage groove (213) to introduce part of the nitrogen gas into the cleaning holes (310).

2. The raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor according to claim 1, characterized in that, The grinding ring grooves (118) include a first ring groove (119), a second ring groove (120) and a third ring groove (121) arranged longitudinally from top to bottom. The groove depths of the first ring groove (119), the second ring groove (120) and the third ring groove (121) gradually become shallower, so that the distance between the corresponding grinding roller (16) and itself gradually decreases.

3. The raw material grinding device for the production of pyrazole-based glyphosate according to claim 2, characterized in that, The counter-rotating mechanism includes a drive shaft (18), a first one-way shaft (19), a timing belt (110), a connecting rod (111), a first driving gear (112), and a first driven gear (113). One end of the drive shaft (18) is connected to the output end of the energy-saving motor (17), and the other end of the drive shaft (18) is connected to the inner cylinder (15) through the first one-way shaft (19). The first driving gear (112) is rotatably mounted on the housing (1). A connecting rod (111) is connected to the first driving gear (112). The synchronous belt (110) is sleeved on the outside of the drive shaft (18) and the connecting rod (111) through the synchronous pulley. The first driven gear (113) is fixedly sleeved on the outer circumferential surface of the outer cylinder (14). The first driven gear (113) meshes with the first driving gear (112).

4. The raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor according to claim 1, characterized in that, It also includes a spacing adjustment mechanism (2), which is adapted to be connected to the first reciprocating screw (28) corresponding to the grinding roller (16) to drive the first reciprocating screw (28) to rotate, thereby changing the spacing between all the grinding rollers (16) and the corresponding grinding ring groove (118).

5. The raw material grinding device for the production of pyrazole-based glyphosate according to claim 4, characterized in that, The spacing adjustment mechanism (2) includes a drive motor (22), a second drive gear (23), an inner and outer gear ring (21), a plurality of second driven gears (24), a plurality of first drive bevel gears (26) and a plurality of first driven bevel gears (27). The second driven gears (24) correspond to the grinding rollers (16) that are evenly distributed around the top circumference. The plurality of first drive bevel gears (26) and the plurality of first driven bevel gears (27) correspond to the plurality of grinding rollers (16) respectively. The drive motor (22) is installed inside the inner cylinder (15). The second driving gear (23), the inner and outer gear rings (21), and the second driven gear (24) are all rotatably installed inside the inner cylinder (15). The output end of the drive motor (22) is connected to the second driving gear (23). The second driving gear (23) meshes with the inner tooth portion of the inner and outer gear rings (21), and the second driven gear (24) meshes with the outer tooth portion of the inner and outer gear rings (21). A number of second driven gears (24) are fixedly connected to the bottom of each of them. The linkage rods (25) are rotatably installed inside the inner cylinder (15). The first driving bevel gears (26) corresponding to the longitudinal position of the second driven gears (24) are all fixedly sleeved on the outer circumferential surface of the corresponding linkage rods (25). The first driven bevel gears (27) are connected to the corresponding first reciprocating screws (28). The first driving bevel gears (26) mesh with the first driven bevel gears (27).

6. The raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor according to claim 3, characterized in that, The linear motion mechanism includes a second one-way shaft (31), a second reciprocating screw (32), a moving ring (33), and a guide rod (35). The second reciprocating screw (32) is rotatably installed in the inner cylinder (15). The drive shaft (18) is connected to the second reciprocating screw (32) through the second one-way shaft (31). The first one-way shaft (19) is arranged in opposite directions to the second one-way shaft (31). When the drive shaft (18) rotates forward, it drives the inner cylinder (15) to rotate. When the drive shaft (18) rotates in reverse, it drives the second reciprocating screw (32) to rotate. The movable ring (33) is assembled on the outside of the second reciprocating screw (32). The second reciprocating screw (32) is adapted to be driven to rotate so as to drive the movable ring (33) to reciprocate linearly along the axis of the second reciprocating screw (32). A guide rod (35) is fixedly connected inside the inner cylinder (15). The movable ring (33) is slidably disposed on the outside of the guide rod (35). The rotating ring (34) is rotatably mounted on the outside of the movable ring (33). The movable ring (33) is adapted to drive the rotating ring (34) to move linearly. The contact area between the force-receiving part (311) corresponding to the first annular groove (119), the force-receiving part (311) corresponding to the second annular groove (120), and the force-receiving part (311) corresponding to the third annular groove (121) and the extrusion part (36) gradually decreases, so as to change the displacement distance of the grinding roller (16) corresponding to each force-receiving part (311) after being extruded, so that the first annular groove (119), the second annular groove (120), and the third annular groove (121) respectively come into contact with their respective corresponding grinding rollers (16).

7. The raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor according to claim 2 or 6, characterized in that, It also includes an anti-caking component (4), which includes a barrier net (49), a plurality of outer rollers (42) and a rotating mechanism; A transition region (47) is provided between adjacent first annular groove (119) and second annular groove (120). The barrier net (49) is provided in the transition region (47). The barrier net (49) is suitable for blocking the raw material that agglomerates after grinding in the first annular groove (119). A plurality of outer rollers (42) are circumferentially distributed above the barrier net (49). The outer cylinder (14) is equipped with several mounting plates (41) corresponding to the outer roller (42). An inner roller (44) is rotatably mounted on the mounting plate (41). The outer roller (42) is fixedly sleeved on the outside of the corresponding inner roller (44). An extension plate (43) is provided on the outer circumferential surface of the outer roller (42). The rotating mechanism is connected to the inner roller (44) to drive the outer roller (42) to rotate, thereby causing the extension plate (43) to intermittently strike the barrier net (49) to generate vibration. Both the inner roller (44) and the outer roller (42) are hollow. The inner roller (44) has several through-holes, and the outer roller (42) has several through-holes. The third air passage (116) is provided with a flow divider (48) corresponding to the inner roller (44). The flow divider (48) is connected to the corresponding inner roller (44) by a rotary seal. The flow divider (48) is adapted to introduce part of the nitrogen in the third air passage (116) into the inner roller (44) and discharge it through the flow divider. The extension plate (43) is adapted to break up the agglomerated raw material remaining on the barrier net (49) under rotation and introduce it into the distribution hole, so that the agglomerated raw material is further broken up in the outer roller (42).

8. The raw material grinding device for the production of pyrazole glyphosate based on an energy-saving motor according to claim 7, characterized in that, The rotating mechanism includes a second driving bevel gear (46) and several second driven bevel gears (45) corresponding to the inner roller (44). The second driven bevel gears (45) are connected to the corresponding inner roller (44). The second driving bevel gear (46) is fixedly sleeved on the outer circumferential surface of the inner cylinder (15). The second driving bevel gear (46) meshes with the second driven bevel gears (45).

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