Raw material grinding equipment for chemical machinery

Abstract

The invention relates to the technical field of grinding equipment, and discloses chemical machinery raw material grinding equipment which comprises a grinding machine, a pretreatment pipe is fixedly mounted at a feeding opening in the top of the grinding machine, and a storage hopper communicating with the pretreatment pipe is fixedly mounted at the top of the pretreatment pipe; two first mounting shafts are symmetrically and rotationally mounted on the upper portion of the interior of the pretreatment pipe, rollers are fixedly mounted on the surfaces of the two first mounting shafts, two quantitative material grooves are symmetrically formed in the surfaces of the two rollers, and mounting boxes communicating with the interior of the pretreatment pipe are symmetrically, obliquely and fixedly mounted on the surface of the pretreatment pipe; partition plates extending into the pretreatment pipe are movably mounted in the two mounting boxes, a rotating shaft is rotatably mounted in the middle of the storage hopper, and three crushing cutters are mounted on the rotating shaft; according to the raw material grinding equipment for the chemical machinery, a continuous treatment system integrating automatic quantitative feeding, pre-crushing and grinding is constructed, so that the processing efficiency and speed of chemical raw materials are effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of grinding equipment, and particularly relates to a raw material grinding equipment for chemical machinery. BACKGROUND

[0002] In the field of chemical production, the processing of semi-finished or intermediate chemical raw materials is a key link for determining the quality of the final product and the synthesis efficiency. Such raw materials, being at the front end of the production chain, often have relatively rough manufacturing processes, and the initial materials obtained are usually difficult to directly meet the requirements of downstream fine synthesis in terms of particle size, purity and uniformity. Therefore, before entering the subsequent chemical reaction or preparation process, they often need to be subjected to a series of refining pretreatments such as grinding, screening, filtering and purification to improve their reaction activity, mixing uniformity and quality stability of the final product.

[0003] Among them, the grinding process, as the core step of adjusting the particle size of raw materials, has an important influence on the smooth progress of the subsequent process. However, in the traditional production mode, this process generally has the problems of low automation degree and insufficient process continuity. Specifically, ordinary grinding equipment usually relies on manual method for raw material feeding, and the operator needs to add materials to the equipment in batches and intermittently. After a batch of grinding operation is completed and the material is discharged, the next batch of feeding and grinding can be carried out. This non-continuous operation mode not only causes frequent start and stop of the equipment, but also significantly restricts the overall processing efficiency. In addition, manual feeding is difficult to achieve precise quantitative control, and the amount of each batch of feeding is prone to fluctuation, which leads to unstable grinding process conditions, directly affects the consistency of the discharged particle size, and further poses potential risks to the uniformity and controllability of the subsequent synthesis reaction. On the other hand, in the face of raw materials with large initial size, the existing equipment often lacks effective pretreatment capability, and often requires additional pre-crushing process or manual pre-pulverization treatment in the production line, which not only increases the equipment investment and site occupation, but also makes the process flow more complex, further reduces the overall processing efficiency, and increases the operation cost and quality control difficulty.

[0004] In summary, there is an urgent practical need to develop an equipment that can realize continuous, quantitative and automatic feeding, and has the functions of efficient crushing and grinding integration, in order to improve the efficiency, stability and intelligent level of the pretreatment link of chemical raw materials. SUMMARY

[0005] To achieve the above objectives, the present invention provides the following technical solution: a raw material grinding equipment for chemical machinery, comprising a grinding mill, a pretreatment pipe fixedly installed at the feed inlet at the top of the grinding mill, a storage hopper fixedly installed at the top of the pretreatment pipe communicating with the pretreatment pipe, a feeding hopper installed at the top of the storage hopper, two mounting shafts symmetrically and rotatably mounted inside the upper part of the pretreatment pipe, rollers fixedly mounted on the surfaces of the two mounting shafts, two quantitative material grooves symmetrically opened on the surfaces of the two rollers, and a circular groove opened in the middle of the rollers, the circular grooves on the rollers penetrating through the surfaces of the two quantitative material grooves on the rollers, mounting boxes symmetrically and obliquely fixedly installed on the surface of the pretreatment pipe communicating with the interior of the pretreatment pipe, and partitions extending into the interior of the pretreatment pipe movably installed inside the two mounting boxes, the opposite ends of the two partitions abutting each other inside the pretreatment pipe, forming a crushing chamber between the two partitions and the two rollers, a rotating shaft rotatably mounted in the middle of the storage hopper, the rotating shaft movably extending into the interior of the crushing chamber through the two circular grooves and having three crushing blades installed at equal intervals.

[0006] Preferably, a protective cover is fixedly installed on the top of the storage hopper, and a dual-output shaft motor is installed on the top of the storage hopper inside the protective cover. The top of the rotating shaft is fixedly connected to one output end of the dual-output shaft motor, and a small sprocket is fixedly installed on the other output end of the dual-output shaft motor. A mounting shaft is rotatably installed inside the protective cover, and a large sprocket is fixedly installed on the surface of the mounting shaft. A chain is installed between the large sprocket and the mounting shaft.

[0007] Preferably, a second protective cover is fixedly installed on the surface of the first protective cover, and the top of the second mounting shaft extends movably into the interior of the second protective cover and is fixedly installed with a first rotating disk and a second rotating disk. Arc-shaped transmission gear block 1 and arc-shaped transmission gear block 2 are respectively fixedly installed on the circumferential surfaces of the first rotating disk and the second rotating disk.

[0008] Preferably, a damping shaft is rotatably mounted on one side of the surface of the storage hopper. The top of the damping shaft extends movably into the interior of the protective cover and is fixedly mounted with a gear that is flush with and engages with the arc-shaped transmission gear block. A protective cover is fixedly mounted on one side of the surface of the pretreatment tube. The bottom of the damping shaft extends movably into the interior of the protective cover and is fixedly mounted with a bevel gear. One end of each of the two mounting shafts extends movably into the interior of the protective cover and is fixedly mounted with a transmission gear. The two transmission gears are meshed and connected. A bevel gear two that meshes with the bevel gear one is fixedly mounted at the shaft center of one of the transmission gears.

[0009] Preferably, a damping shaft two is rotatably mounted on the other side of the surface of the storage hopper. The top of the damping shaft two extends movably into the interior of the protective cover two and is fixedly mounted with a gear three that is flush with the height of the arc-shaped transmission tooth block two and works in conjunction with it. A protective cover four is fixedly mounted on the other side of the surface of the pretreatment tube. The bottom of the damping shaft two extends movably into the interior of the protective cover four and is fixedly mounted with a bevel gear three.

[0010] Preferably, two adjusting discs are rotatably installed inside the protective cover four. Large arc transmission gear blocks are symmetrically fixedly installed on the circumference of the two adjusting discs. A mounting shaft three is rotatably installed inside the protective cover four. A bevel gear four that meshes with a bevel gear three is fixedly installed in the middle of the mounting shaft three. Bevel gear five is symmetrically fixedly installed at both ends of the mounting shaft three. Bevel gear six is ​​fixedly installed at the axis of each of the two large adjusting gears, and the two gears mesh with the two bevel gear fours respectively.

[0011] Preferably, a mounting shaft four is rotatably installed between the protective cover four and the interior of each of the two mounting boxes. The ends of the two mounting shaft four located inside the protective cover four are fixedly installed with adjusting pinions that match the large arc transmission gear blocks. The two large arc transmission gear blocks intermittently drive the two adjusting pinions. A transmission groove is opened in the middle of one side of each of the two partition plates. A transmission rack is fixedly installed at the bottom of each of the two transmission grooves. The ends of the two mounting shaft four located inside the two mounting boxes extend into the interior of the two transmission grooves and are fixedly installed with movable adjusting gears that mesh with the transmission racks.

[0012] Preferably, several rubber corrugated sleeves are fixedly installed at equal distances between the inner ends of the two mounting boxes and the partition plate. Each rubber corrugated sleeve has a return spring installed inside, and the two ends of the return spring are fixedly connected to the mounting box and the partition plate, respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This chemical machinery raw material grinding equipment adopts a continuous automated feeding system, which can realize a stable and quantitative supply of chemical raw materials, avoid batch fluctuations and errors caused by manual feeding, and ensure that the grinding process always operates under the set process parameters, thereby effectively improving the processing quality. This chemical machinery raw material grinding equipment integrates pre-crushing and grinding functions into one unit. The equipment can complete the preliminary crushing and grinding of large-particle raw materials at the same station without the need for additional independent crushing devices or manual pretreatment, which effectively simplifies the processing flow and improves the overall production efficiency. This chemical machinery raw material grinding equipment supports continuous operation through integrated design, enabling continuous equipment operation and uninterrupted material input, significantly reducing start-up and shutdown frequency and no-load losses, improving equipment utilization and capacity output, meeting the needs of chemical production, and shortening the processing cycle; This chemical machinery raw material grinding equipment, by constructing a continuous processing system integrating automatic quantitative feeding, pre-crushing and grinding, not only solves the problems of excessive manual intervention, inaccurate control and lengthy process in traditional grinding processes, but also achieves high efficiency and stability from raw material preparation to refining, comprehensively improving the reliability of chemical raw material pretreatment. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a front view structural diagram of the raw material grinding equipment for chemical machinery according to the present invention; Figure 2 For the present invention Figure 1 A partial sectional view of the structure; Figure 3 For the present invention Figure 2 Schematic diagram of local structure Figure 1 ; Figure 4 For the present invention Figure 2 Schematic diagram of local structure Figure 2 ; Figure 5 For the present invention Figure 3 A partial sectional view of the structure; Figure 6 For the present invention Figure 4 A schematic diagram of the cross-sectional structure; Figure 7 For the present invention Figure 6 A magnified structural diagram at point A; Figure 8 For the present invention Figure 2 A schematic diagram of the rear view structure; Figure 9 For the present invention Figure 8 Schematic diagram of partial cross-section structure Figure 1 ; Figure 10 For the present invention Figure 8 Schematic diagram of partial cross-section structure Figure 2 ; Figure 11 For the present invention Figure 10 A schematic diagram of a partial structure; Figure 12 For the present invention Figure 9 A partial sectional view of the structure; Figure 13 For the present invention Figure 10 A schematic diagram of the cross-sectional structure; Figure 14 For the present invention Figure 12 A schematic diagram of a partial structure; In the diagram: 1. Grinding mill; 2. Pretreatment pipe; 3. Storage hopper; 4. Feeding hopper; 5. Mounting shaft one; 6. Drum; 7. Metering trough; 8. Ring groove; 9. Mounting box; 10. Partition plate; 11. Rotating shaft; 12. Crushing blade; 13. Protective cover one; 14. Dual-output shaft motor; 15. Small sprocket; 16. Mounting shaft two; 17. Large sprocket; 18. Chain; 19. Protective cover two; 20. Rotary disc one; 21. Rotary disc two; 22. Arc-shaped transmission gear block one; 23. Arc-shaped transmission gear block two; 24. Damping shaft one; 25. 26. Gear 1; 27. Protective cover 3; 28. Bevel gear 1; 29. ​​Transmission gear; 30. Bevel gear 2; 31. Damping shaft 2; 32. Gear 3; 33. Protective cover 4; 34. Bevel gear 3; 35. Adjusting disc; 36. Mounting shaft 3; 37. Bevel gear 4; 38. Bevel gear 6; 39. Mounting shaft 4; 40. Adjusting pinion; 41. Moving adjusting gear; 42. Transmission groove; 43. Transmission rack; 44. Rubber corrugated sleeve; 45. Return spring; 46. Stirring rod; 47. Stop block. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] Example 1, by Figures 1 to 14 The present invention includes a grinding mill 1. A pretreatment pipe 2 is fixedly installed at the feed inlet at the top of the grinding mill 1. A storage hopper 3 communicating with the pretreatment pipe 2 is fixedly installed at the top of the pretreatment pipe 2. A feeding hopper 4 is installed at the top of the storage hopper 3. Two mounting shafts 5 are symmetrically rotated inside the upper part of the pretreatment pipe 2. Rollers 6 are fixedly installed on the surface of each of the two mounting shafts 5. The two rollers 6 can effectively separate the pretreatment pipe 2 and the storage hopper 3. Two quantitative feed grooves 7 are symmetrically opened on the surface of each of the two rollers 6. The two quantitative feed grooves 7 on the surface of the two rollers 6 can perform quantitative rotation feeding operation. A circular groove 8 is opened in the middle of each roller 6. The circular groove 8 on the roller 6 penetrates through the surface of the two quantitative feed grooves 7 on the roller 6. The two stops 47 matching the circular grooves 8 are fixedly installed in the middle of both sides of the bottom of the pretreatment pipe 2. The two stops 47 are located inside the two circular grooves 8, so that the raw material inside the storage hopper 3 will not fall into the crushing chamber through the circular grooves 8, effectively ensuring the accuracy of the amount of raw material crushed inside the crushing chamber.

[0018] The surface of the pretreatment tube 2 is symmetrically inclined and fixedly installed with mounting boxes 9 that communicate with the interior of the pretreatment tube 2. The interior of each of the two mounting boxes 9 is movably installed with baffles 10 extending into the interior of the pretreatment tube 2. The opposite ends of the two baffles 10 abut against each other inside the pretreatment tube 2. A crushing chamber is formed between the two baffles 10 and the two rollers 6. A rotating shaft 11 is rotatably installed in the middle of the storage hopper 3. The rotating shaft 11 extends movably into the interior of the crushing chamber through two circular grooves 8 and is equipped with three crushing blades 12 at equal intervals. A stirring rod 46 is fixedly installed at equal intervals in the lower part of the rotating shaft 11 inside the storage hopper 3, so as to stir the raw materials accumulated inside the storage hopper 3 and avoid the raw materials from accumulating and causing blockage, thus preventing the raw materials from automatically filling the quantitative feed trough 7.

[0019] In Example 2, based on Example 1, a protective cover 13 is fixedly installed on the top of the storage hopper 3. A dual-shaft motor 14 is installed on the top of the storage hopper 3 inside the protective cover 13. The top of the rotating shaft 11 is fixedly connected to one output end of the dual-shaft motor 14. A small sprocket 15 is fixedly installed on the other output end of the dual-shaft motor 14. A mounting shaft 16 is rotatably installed inside the protective cover 13. A large sprocket 17 is fixedly installed on the surface of the mounting shaft 16. A chain 18 is installed between the large sprocket 17 and the mounting shaft 16, thereby enabling effective crushing and speed reduction transmission. Specifically, by starting the dual-shaft motor 14, the rotating shaft 11 drives the crushing blade 12 to rotate. The rotation of the crushing blade 12 will crush the raw rubber material inside the crushing chamber. At the same time, starting the dual-shaft motor 14 will drive the small sprocket 15 to rotate. The rotation of the small sprocket 15 will reduce the speed of the mounting shaft 16 through the chain 18 and the large sprocket 17.

[0020] A second protective cover 19 is fixedly installed on the surface of the first protective cover 13. The top of the second mounting shaft 16 extends movably into the interior of the second protective cover 19 and is fixedly installed with a first rotating disk 20 and a second rotating disk 21. Arc-shaped transmission gear blocks 1 22 and 2 3 are respectively fixedly installed on the circumferential surfaces of the first rotating disk 20 and the second rotating disk 21. The arc-shaped transmission gear blocks 1 22 and 2 3 are staggered. A damping shaft 24 is rotatably installed on one side of the surface of the storage hopper 3. The top of the damping shaft 24 extends movably into the interior of the second protective cover 19. A gear 25, flush with and engaging with the arc-shaped transmission gear block 22, is fixedly installed. The arc-shaped transmission gear block 22 intermittently drives the gear 25. A protective cover 26 is fixedly installed on one side of the surface of the pretreatment tube 2. The bottom of the damping shaft 24 extends movably into the interior of the protective cover 26 and a bevel gear 27 is fixedly installed thereon. One end of each of the two mounting shafts 5 extends movably into the interior of the protective cover 26 and a transmission gear 28 is fixedly installed thereon. The two transmission gears 28 mesh with each other. The shaft of one of the transmission gears 28... A second bevel gear 29 is fixedly installed at the center and meshes with a first bevel gear 27, thereby effectively enabling intermittent 180° rotation of the two rollers 6, allowing the metering trough 7 on the rollers 6 to perform metered feeding operations; specifically, when the mounting shaft 26 rotates, it drives the first and second rotary disks 20 and 21 to rotate, thereby driving the first and second arc-shaped transmission gear blocks 22 and 23 to rotate, thus causing the first arc-shaped transmission gear block 22 to intermittently rotate the first gear 25 in a 180° rotation. Each 180° rotation of 25 will drive the damping shaft 24 and bevel gear 27 to rotate 180°. The 180° rotation of bevel gear 27 will drive the bevel gear 29 to rotate 180°. The 180° rotation of bevel gear 29 will drive the two mounting shafts 5 and the two rollers 6 to rotate 180° in opposite directions through two meshing transmission gears 28. The 180° rotation of the two rollers 6 can effectively add the raw materials inside the storage hopper 3 to the crushing chamber through the quantitative material trough 7 on them.

[0021] In Example 3, based on Example 2, a damping shaft 2 30 is rotatably mounted on the other side of the surface of the storage hopper 3. The top of the damping shaft 2 30 extends movably into the interior of the protective cover 2 19 and is fixedly mounted with a gear 3 31 that is flush with and engages with the arc-shaped transmission gear block 2 23. A protective cover 4 32 is fixedly mounted on the other side of the surface of the pretreatment pipe 2. The bottom of the damping shaft 2 30 extends movably into the interior of the protective cover 4 32 and is fixedly mounted with a bevel gear 3 33. Two adjusting discs 34 are rotatably mounted inside the protective cover 4 32. Large arc transmission gear blocks are symmetrically fixedly mounted on the circumferences of the two adjusting discs 34. A mounting shaft 3 35 is rotatably mounted inside the protective cover 4 32. A bevel gear 4 36 that meshes with the bevel gear 3 33 is fixedly mounted in the middle of the mounting shaft 3 35. Bevel gears 5 37 are symmetrically fixedly mounted at both ends of the mounting shaft 3 35. Bevel gears 6 38 are fixedly mounted at the shaft center of each of the two large adjusting gears 34, and each of the two bevel gears 4 38 is respectively engaged with the two bevel gears 4 38. 37 meshing connection, thus enabling effective transmission adjustment; specifically, when the first rotary disk 20 and the second rotary disk 21 drive the first arc-shaped transmission gear block 22 and the second arc-shaped transmission gear block 23 to rotate, and the first arc-shaped transmission gear block 22 performs a 180° transmission rotation on the first gear 25 and then separates, as the second rotary disk 21 drives the second arc-shaped transmission gear block 23 to continue rotating, the second arc-shaped transmission gear block 23 will intermittently drive the third gear 31 to rotate. The rotation of the third gear 31 will drive the second damping shaft 30 and the third bevel gear 33 to rotate. The rotation of the third bevel gear 33 will drive the fourth bevel gear 36 to rotate, thereby driving the mounting shaft 35 and the two fifth bevel gears 37 to rotate. The rotation of the two fifth bevel gears 37 will drive the two sixth bevel gears 38 to rotate, thereby synchronously driving the two adjusting disks 34 to rotate relative to each other. This causes the two adjusting disks 34 to rotate one revolution, and the two adjusting disks 34 rotating relative to each other one revolution will drive the two large arc transmission gear blocks to rotate one revolution.

[0022] In Example 4, based on Example 3, mounting shafts 39 are rotatably installed between the protective cover 32 and the interiors of the two mounting boxes 9. Adjusting pinions 40, matching the large arc transmission gear blocks, are fixedly installed at the ends of the two mounting shafts 39 inside the protective cover 32. The two large arc transmission gear blocks intermittently drive the two adjusting pinions 40. Transmission grooves 42 are opened in the middle of one side of each of the two partition plates 10. Transmission racks 43 are fixedly installed at the bottom of each of the two transmission grooves 42. The two transmission racks 43 are located in the middle of the two partition plates 10. The ends of the two mounting shafts 39 inside the two mounting boxes 9 extend into the interiors of the two transmission grooves 42 and are fixedly installed with movable adjusting gears 41 that mesh with the transmission racks 43, thereby effectively controlling... The partition plates 10 are adjusted and moved so that they move from inside the pretreatment tube 2 to inside the two mounting boxes 9, allowing the crushed raw materials to effectively fall into the grinding mill 1 for grinding. Specifically, when the two large arc transmission gear blocks rotate, they will drive the two adjusting pinions 40 to rotate several times and then separate. The rotation of the two adjusting pinions 40 will drive the two mounting shafts 39 and the two moving adjusting gears 41 to rotate. The rotation of the two moving adjusting gears 41 will drive the two transmission racks 43 to move. The movement of the two transmission racks 43 will drive the two partition plates 10 from inside the pretreatment tube 2 to inside the two mounting boxes 9, so that the crushed raw materials inside the crushing chamber can fall into the grinding mill 1 for grinding.

[0023] Several rubber corrugated sleeves 44 are fixedly installed at equal distances between the inner ends of the two mounting boxes 9 and the partition plates 10. Each rubber corrugated sleeve 44 has a return spring 45 installed inside. The two ends of the return spring 45 are fixedly connected to the mounting box 9 and the partition plates 10 respectively, so that the two partition plates 10 can automatically reset and separate the interior of the pretreatment tube 2, so that the crushed raw materials can be intercepted and effectively crushed. Specifically, when the partition plates 10 move from the interior of the pretreatment tube 2 to the interior of the two mounting boxes 9, they will compress the rubber corrugated sleeves 44 and the return springs 45. After the large arc transmission gear block separates from the adjusting pinion 40, the elastic restoring force of the rubber corrugated sleeves 44 and the return springs 45 will cause the two partition plates 10 to reset and move into the interior of the pretreatment tube 2 for separation. Then the arc-shaped transmission gear block 22 will rotate the gear 25 180° again to realize the automatic quantitative feeding operation.

[0024] This chemical machinery raw material grinding equipment adopts a continuous automated feeding system to achieve a stable and quantitative supply of chemical raw materials, avoiding batch fluctuations and errors caused by manual feeding. It ensures that the grinding process always operates under the set process parameters, thereby effectively improving processing quality. Simultaneously, by integrating pre-crushing and grinding functions, the equipment can complete the preliminary crushing and grinding of large-particle raw materials at the same station, eliminating the need for additional independent crushing devices or manual pretreatment. This effectively simplifies the processing flow and improves overall production efficiency. Furthermore, the integrated design supports continuous operation, enabling continuous equipment operation and uninterrupted material input, significantly reducing start-up and shutdown frequency and idle losses, improving equipment utilization and capacity output, meeting the needs of chemical production, and shortening the processing cycle.

[0025] In summary, this raw material grinding equipment for chemical machinery, by constructing a continuous processing system integrating automatic quantitative feeding, pre-crushing, and grinding, not only solves the problems of excessive manual intervention, inaccurate control, and lengthy processes in traditional grinding processes, but also achieves high efficiency and stability from raw material preparation to refining, comprehensively improving the reliability of chemical raw material pretreatment.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material grinding equipment for chemical machinery, comprising a grinding mill (1), characterized in that: The grinding mill (1) has a pretreatment pipe (2) fixedly installed at the feed inlet at the top. A storage hopper (3) connected to the pretreatment pipe (2) is fixedly installed at the top of the pretreatment pipe (2). A feeding hopper (4) is installed at the top of the storage hopper (3). Two mounting shafts (5) are symmetrically rotated inside the upper part of the pretreatment pipe (2). Rollers (6) are fixedly installed on the surfaces of the two mounting shafts (5). Two metering grooves (7) are symmetrically opened on the surfaces of the two rollers (6). A circular groove (8) is opened in the middle of the rollers (6). The circular grooves (8) on the rollers (6) are connected to the two metering grooves on the rollers (6). (7) The surface of the pretreatment tube (2) is symmetrically inclined and fixedly installed with a mounting box (9) that communicates with the inside of the pretreatment tube (2). The two mounting boxes (9) are movably installed with a partition plate (10) extending into the inside of the pretreatment tube (2). The opposite ends of the two partition plates (10) abut against each other inside the pretreatment tube (2). A crushing chamber is formed between the two partition plates (10) and the two rollers (6). A rotating shaft (11) is rotatably installed in the middle of the storage hopper (3). The rotating shaft (11) extends movably into the inside of the crushing chamber through two ring grooves (8) and three crushing blades (12) are installed at equal distances.

2. The raw material grinding equipment for chemical machinery according to claim 1, characterized in that: The top of the storage hopper (3) is fixedly installed with a protective cover (13). The top of the storage hopper (3) inside the protective cover (13) is equipped with a dual-output shaft motor (14). The top of the rotating shaft (11) is fixedly connected to one output end of the dual-output shaft motor (14). The other output end of the dual-output shaft motor (14) is fixedly installed with a small sprocket (15). The inside of the protective cover (13) is rotatably installed with a mounting shaft (16). The surface of the mounting shaft (16) is fixedly installed with a large sprocket (17). A chain (18) is installed between the large sprocket (17) and the mounting shaft (16).

3. The raw material grinding equipment for chemical machinery according to claim 2, characterized in that: The protective cover one (13) is fixedly installed with a protective cover two (19). The top of the mounting shaft two (16) extends movably into the interior of the protective cover two (19) and is fixedly installed with a rotary disk one (20) and a rotary disk two (21). The circumferential surfaces of the rotary disk one (20) and the rotary disk two (21) are respectively fixedly installed with an arc-shaped transmission tooth block one (22) and an arc-shaped transmission tooth block two (23).

4. The raw material grinding equipment for chemical machinery according to claim 3, characterized in that: A damping shaft 1 (24) is rotatably mounted on one side of the surface of the storage hopper (3). The top of the damping shaft 1 (24) extends movably into the interior of the protective cover 2 (19) and is fixedly mounted with a gear 1 (25) that is flush with the height of the arc-shaped transmission tooth block 1 (22) and works in conjunction with it. A protective cover 3 (26) is fixedly mounted on one side of the surface of the pretreatment tube (2). The bottom of the damping shaft 1 (24) extends movably into the interior of the protective cover 3 (26) and is fixedly mounted with a bevel gear 1 (27). One end of each of the two mounting shafts 1 (5) extends movably into the interior of the protective cover 3 (26) and is fixedly mounted with a transmission gear (28). The two transmission gears (28) are meshed and connected. A bevel gear 2 (29) that meshes and connects with bevel gear 1 (27) is fixedly mounted at the shaft center of one of the transmission gears (28).

5. The raw material grinding equipment for chemical machinery according to claim 4, characterized in that: A damping shaft 2 (30) is rotatably mounted on the other side of the surface of the storage hopper (3). The top of the damping shaft 2 (30) extends movably into the interior of the protective cover 2 (19) and is fixedly mounted with a gear 3 (31) that is flush with the height of the arc-shaped transmission tooth block 2 (23) and works in conjunction with it. A protective cover 4 (32) is fixedly mounted on the other side of the surface of the pretreatment tube (2). The bottom of the damping shaft 2 (30) extends movably into the interior of the protective cover 4 (32) and is fixedly mounted with a bevel gear 3 (33).

6. The raw material grinding equipment for chemical machinery according to claim 5, characterized in that: The protective cover four (32) has two adjusting discs (34) rotatably mounted inside. Large arc transmission gear blocks are symmetrically fixedly mounted on the circumference of the two adjusting discs (34). The protective cover four (32) has a mounting shaft three (35) rotatably mounted inside. A bevel gear four (36) that meshes with bevel gear three (33) is fixedly mounted in the middle of the mounting shaft three (35). Bevel gear five (37) is symmetrically fixedly mounted at both ends of the mounting shaft three (35). Bevel gear six (38) is fixedly mounted at the center of the two adjusting large gears (34), and the two are respectively meshed with the two bevel gear four (37).

7. A raw material grinding device for chemical machinery according to claim 6, characterized in that: The protective cover four (32) and the interior of the two mounting boxes (9) are rotatably mounted with mounting shaft four (39). The ends of the two mounting shaft four (39) located inside the protective cover four (32) are fixedly mounted with adjusting pinions (40) that match the large arc transmission gear blocks. The two large arc transmission gear blocks intermittently drive the two adjusting pinions (40). The middle of one side of the two partition plates (10) is provided with a transmission groove (42). The bottom of the two transmission grooves (42) is fixedly mounted with a transmission rack (43). The ends of the two mounting shaft four (39) located inside the two mounting boxes (9) extend into the interior of the two transmission grooves (42) and are fixedly mounted with moving adjusting gears (41) that mesh with the transmission racks (43).

8. The raw material grinding equipment for chemical machinery according to claim 7, characterized in that: Several rubber corrugated sleeves (44) are fixedly installed at equal distances between the inner ends of the two mounting boxes (9) and the partition plate (10). Each rubber corrugated sleeve (44) is equipped with a return spring (45), and the two ends of the return spring (45) are fixedly connected to the mounting box (9) and the partition plate (10) respectively.

9. The raw material grinding equipment for chemical machinery according to claim 1, characterized in that: The rotating shaft (11) is fixedly installed with stirring rods (46) at equal distances in the lower part of the storage hopper (3). The bottom of the pretreatment tube (2) is fixedly installed with stop blocks (47) that match the ring grooves (8) in the middle of both sides. The two stop blocks (47) are located in the two ring grooves (8) respectively.

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