A pulverizing device and pulverizing method

Abstract

This invention relates to the technical field of pulverizing devices, specifically disclosing a pulverizing device and method. The device includes a tank and a feed inlet located on the tank. The tank contains a crushing component, a grinding component, a driving component, and a guiding component. The crushing component includes two sets of horizontally staggered crushing rods. The driving component is connected to the lower end of the crushing rods to drive their rotation. The feed inlet corresponds to the middle of the two sets of crushing rods. The grinding component includes a grinding plate and a grinding roller. The grinding plate is located below the crushing rods, and its upper surface is connected to the driving component. An arc-shaped portion is provided below the grinding plate to abut against the bottom of the grinding roller. The guiding component is connected to the grinding roller. When the grinding roller moves relative to the tank, the guiding component drives the grinding roller to rotate. The pulverizing device and method of this invention reduce the occurrence of sparks or overheating during the grinding process, reducing safety hazards and improving pulverizing efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of pulverizing devices, and specifically to a pulverizing device and pulverizing method. Background Technology

[0002] Crushing equipment is widely used in building materials and construction, resource recycling and environmental protection, chemical industry and new materials. In the chemical industry, crushing equipment, with its high efficiency, precision and safety, has become a key piece of equipment for raw material pretreatment and product refinement. For example, in the production and processing of nitro compounds, some raw materials need to be crushed to a specific particle size to meet the requirements of subsequent reactions or purification.

[0003] Patent document CN103447131B discloses a crushing device for a crusher, including a crushing chamber with a feed hopper and a discharge port. A cutter wheel is mounted inside the crushing chamber via a cutter bearing. A pulley is fixed to one end of the cutter wheel, and a cutter holder is welded onto the cutter wheel. Crushing blades are bolted to the cutter holder. A top cover is installed on the top of the crushing chamber, and a fixing bolt is provided between the feed hopper and the top cover. The crushing blades have double cutting edges and consist of two blades symmetrically mounted on the cutter holder. The cutter holder is made of cold-drawn steel, and the cutter wheel is formed and welded from medium carbon steel plate. A storage trough is provided on the cutter wheel. A protective cover is installed on the outside of the cutter bearing. Connecting the pulley to a belt-driven power unit rotates the cutter wheel, causing the crushing blades to rotate as well, thus achieving crushing. The crushed material passes through the storage trough and is ejected from the discharge port under centrifugal force.

[0004] However, this approach also has the following problems: when processing some chemical intermediates, attention must be paid to their chemical properties. For example, nitro compounds pose a potential explosion risk when heated, rubbed, or impacted. Therefore, crushing methods that may generate sparks, high temperatures, or violent impacts should be avoided. The existing technology described above, which uses high-speed rotating blades to pulverize nitro compounds, is highly prone to generating sparks or frictional heat, posing a safety hazard. Summary of the Invention

[0005] This invention provides a pulverizing device and pulverizing method, aiming to solve the safety hazards caused by sparks or frictional heat generated when high-speed rotating blades pulverize nitro compounds in related technologies.

[0006] In a first aspect, the present invention provides a crushing device, including a tank and a feed inlet located on the tank. The tank is provided with a crushing component, a grinding component, a driving component, and a guiding component. The crushing component includes two sets of crushing rods arranged alternately in a horizontal direction. The driving component is connected to the lower end of the crushing rods to drive the crushing rods to rotate. The feed inlet corresponds to the middle of the two sets of crushing rods. The grinding component includes a grinding plate and a grinding roller. The grinding plate is located below the crushing rods. The upper side of the grinding plate is connected to the driving component. An arc-shaped part is provided below the grinding plate to abut against the bottom of the grinding roller. The guiding component is connected to the grinding roller. When the grinding roller moves relative to the tank, the guiding component drives the grinding roller to rotate.

[0007] The drive assembly drives the crushing rod and the grinding plate to rotate synchronously. At the same time, the grinding roller rotates on its own. The material crushed by the crushing rod enters between the grinding roller and the arc-shaped part. The rotation of the grinding roller cooperates with the arc-shaped part to grind the material.

[0008] The effect is as follows: In the initial state, the drive assembly drives the crushing rods to rotate, causing the upper ends of the two sets of crushing rods to be separated and in an open state. The material enters between the two sets of crushing rods through the feed inlet. Then, the drive assembly drives the crushing rods and grinding plates to rotate synchronously. The crushing rods initially crush the material as they rotate. The initially crushed material falls onto the grinding plate, which drives the grinding rollers to move synchronously as it rotates. At the same time, the guide assembly drives the grinding rollers to rotate. The grinding rollers, in conjunction with the arc-shaped part, grind the material between the two sets of crushing rods to process it into material of a specified particle size. The material is initially crushed by the slow rotation of the crushing rods, and then ground by the grinding rollers. The slow rotation of the crushing rods reduces the occurrence of sparks. At the same time, the grinding rollers grind the initially crushed material, which shortens the crushing time of the material at the crushing rods and grinding rollers, reduces the heat generated during the crushing process, thereby reducing the possibility of overheating of the material, reducing safety hazards, and improving crushing efficiency.

[0009] Preferably, the drive assembly includes a power component, a transmission component, an inner rod, and a sleeve rod. The inner rod is rotatably mounted on the tank body, and the sleeve rod is rotatably sleeved on the outside of the inner rod. The output end of the power component is connected to the sleeve rod and the inner rod respectively through the transmission component to drive the sleeve rod and the inner rod to rotate in opposite directions. Two sets of crushing rods are connected to the inner rod and the sleeve rod respectively. The sleeve rod is provided with multiple clearance grooves, and the crushing rod on the inner rod passes through the clearance grooves and connects to the inner rod.

[0010] Its effect is that the power component drives the inner rod and the sleeve rod to rotate in opposite directions through the transmission component. The inner rod and the sleeve rod drive the corresponding crushing rod to rotate, thereby crushing the material.

[0011] Preferably, there are two sets of grinding plates, with the two sets of grinding plates located below the two sets of crushing rods, and the arc-shaped part is located on the side of the grinding plate opposite to the other grinding plate.

[0012] Its effect is to allow the material, after being crushed by the crushing rod, to enter the grinding plate for subsequent grinding processing.

[0013] Preferably, the two sets of grinding plates are connected to the sleeve rod and the inner rod respectively, and the grinding plates and crushing rods installed on the inner rod are symmetrically arranged around the axis of the inner rod.

[0014] Its effect is that the grinding plate can rotate synchronously with the crushing rod, and when the two sets of crushing rods rotate to open or close, they drive the corresponding grinding plate to open or close synchronously. During the process, the grinding plate and the crushing rod are always aligned so that the crushed material falls onto the grinding plate.

[0015] Preferably, the guiding assembly includes a guiding rack and a guiding gear. The guiding rack is installed on the outside of the tank body and is arc-shaped around the inner rod. The guiding gear meshes with the guiding rack. A connecting rod is coaxially fixed at the end of the grinding roller. An arc-shaped groove is opened on the tank body. The connecting rod passes through the arc-shaped groove and is coaxially fixedly connected to the guiding gear. The connecting rod is slidably arranged in the arc-shaped groove.

[0016] Its effect is that when the grinding roller rotates with the grinding plate, the guide gear moves relative to the guide rack, and the rotation of the guide gear drives the grinding roller to rotate, so that the grinding roller can work with the arc-shaped part to grind the material.

[0017] Preferably, a support rod is provided on the tank body, and a connecting plate is rotatably provided at the end of the connecting rod away from the grinding roller. The support rod is arc-shaped around the inner rod, and the connecting plate is slidably sleeved on the outside of the support rod. A spring is provided on the connecting plate and connected to the support rod. The spring is used to drive the grinding roller to abut against the arc-shaped part.

[0018] Its effect is that the spring applies elastic force to the connecting plate, causing the grinding roller to move toward the arc-shaped part, so that the grinding roller always keeps in contact with the arc-shaped part, so that the material between the grinding roller and the arc-shaped part can be ground when the grinding roller rotates.

[0019] Preferably, the side of the arc-shaped part away from the grinding plate slides against the inner wall of the tank. The support rod is located between the two sets of grinding rollers. A stop sleeve is provided in the middle of the support rod. When the two sets of grinding plates rotate and approach each other, the grinding rollers move with the grinding plates. When the connecting plate abuts against the stop sleeve, the grinding rollers stop moving, and the grinding plates continue to rotate and separate from the grinding rollers.

[0020] Its effect is that when the arc-shaped part rotates to the discharge port, the connecting plate abuts against the retaining sleeve, the grinding roller stops moving, and the grinding plate continues to rotate, causing the arc-shaped part to separate from the grinding roller, so that the ground material separates from the arc-shaped part and is then discharged through the discharge port.

[0021] Preferably, the bottom of the tank has a discharge port, and a screen plate is slidably mounted inside the discharge port. The screen plate has multiple screen holes for screening materials. A second spring is provided at the bottom of the tank, which is connected to the screen plate to drive the screen plate to move upward. A push rod is provided at the bottom of the arc-shaped part. The push rod rotates with the arc-shaped part and passes through multiple screen holes in sequence. When the push rod passes through the screen holes, the screen plate vibrates under the action of the second spring to screen the materials.

[0022] Its effect is that when the arc-shaped part rotates and passes through the screen plate, it drives the push rod to abut against the screen plate, pushing the screen plate to move downward. After the push rod enters the screen hole, the spring part 2 drives the screen plate to move and reset. In this way, the screen plate vibrates back and forth repeatedly to vibrate and screen the material.

[0023] Preferably, the inner top wall of the tank is arc-shaped, and the end of the crushing rod away from the drive assembly slides against the inner wall of the tank.

[0024] Its effect is to ensure that the crushing rod can fully contact the material entering the tank when it rotates, thereby reducing the amount of material entering the grinding plate without undergoing preliminary crushing and improving the crushing effect on the material.

[0025] Secondly, the present invention provides a pulverizing method using the above-mentioned pulverizing apparatus, comprising the following steps:

[0026] The power component drives the inner rod and sleeve rod to rotate, which in turn drives the two sets of crushing rods to rotate in opposite directions, so that the upper ends of the two sets of crushing rods are in an open state.

[0027] The material is fed into the crushing bars through the feed inlet;

[0028] The power unit drives two sets of crushing rods to rotate and move closer to each other, thus performing preliminary crushing of the material between the crushing rods;

[0029] The crushed material falls onto the grinding plate and then enters the space between the arc-shaped section and the grinding roller;

[0030] The grinding roller moves with the grinding plate, while the guide gear moves relative to the guide rack, causing the grinding roller to rotate. This, combined with the arc-shaped part, grinds the material.

[0031] After the connecting plate moves to engage with the retaining sleeve, the grinding roller stops moving, the grinding plate continues to move and separates from the grinding roller, and the material between the arc-shaped part and the grinding roller enters the screen plate;

[0032] The grinding plate continues to rotate, driving the push rod to move through the arc-shaped part. The push rod, in conjunction with the screen hole, drives the screen plate to vibrate under the action of the second spring, so that the material is discharged through the outlet after being vibrated.

[0033] Its effect is that after being crushed by the crushing rod, the material is then ground by the grinding roller. During the process, the crushing rod rotates slowly, processing the material sequentially to achieve the specified particle size and reducing safety hazards.

[0034] Beneficial effects:

[0035] This invention uses crushing rollers and grinding rollers to perform initial crushing and grinding of materials. During the process, the crushing rod rotates slowly to reduce the occurrence of sparks during crushing. The material crushing process is divided into two parts, which can quickly crush the material into the specified particle size and shorten the processing time of the material in the two processes. This avoids the phenomenon of overheating of the crushing rod or grinding roller surface due to friction in a single process, reduces safety hazards, and improves crushing efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0037] Figure 2 This is a schematic diagram of the structure of the crushing component in this invention.

[0038] Figure 3 This is a schematic diagram of the driving component in this invention.

[0039] Figure 4 This is a schematic diagram of the transmission component in this invention.

[0040] Figure 5 This is a schematic diagram of the structure of the guiding component in this invention.

[0041] Figure 6 This is a schematic diagram of the structure of the retainer in this invention.

[0042] Figure 7 This is a schematic diagram of the sieve plate of the present invention.

[0043] Figure label:

[0044] 1. Tank body; 11. Feed inlet; 12. Discharge outlet; 13. Arc groove; 2. Crushing assembly; 21. Crushing rod; 3. Grinding assembly; 31. Grinding plate; 32. Grinding roller; 4. Drive assembly; 41. Power component; 42. Transmission component; 421. Intermediate bevel gear; 422. First bevel gear; 423. Second bevel gear; 43. Inner rod; 44. Sleeve rod; 441. Relief groove; 442. Intermediate ring; 5. Guide assembly; 51. Guide rack; 52. Guide gear; 6. Arc-shaped part; 61. Push rod; 7. Connecting rod; 71. Connecting plate; 72. Spring component one; 8. Support rod; 81. Baffle sleeve; 9. Screen plate; 91. Screen hole; 92. Spring component two. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] This invention discloses a pulverizing device.

[0047] Reference Figures 1 to 7 The crushing device includes a tank 1 with an inlet 11 and an outlet 12. The inlet 11 is located at the top of the tank 1, and the outlet 12 is located at the bottom of the tank 1. Inside the tank 1 are a crushing component 2, a grinding component 3, a drive component 4, and a guide component 5. The drive component 4 cooperates with both the crushing component 2 and the grinding component 3, and the guide component 5 cooperates with the grinding component 3. The material to be crushed is added to the tank 1 through the inlet 11. The drive component 4 and the crushing component 2 work together to crush the material. The crushed material then enters the grinding component 3, where, under the action of the drive component 4 and the guide component 5, the crushing component 2 grinds the crushed material to a specified particle size. Finally, the material is discharged through the outlet 12.

[0048] Reference Figure 1 , Figure 2 The crushing component 2 includes two sets of crushing rods 21. Each set of multiple crushing rods 21 is set as a group. The multiple crushing rods 21 in each group are spaced apart in the horizontal direction. The two sets of crushing rods 21 are staggered in the horizontal direction. The driving component 4 is connected to the crushing rods 21. The driving component 4 drives the two sets of crushing rods 21 to rotate and move closer to each other. The driving component 4 is connected to the bottom of the crushing rods 21. The middle of the two sets of crushing rods 21 corresponds to the feed inlet 11.

[0049] In the initial state, the drive assembly 4 drives the two sets of crushing rods 21 to rotate away from each other. At this time, the upper ends of the crushing rods 21 are in an open state. After the material enters the tank 1 through the feed port 11, it falls between the two sets of crushing rods 21. Subsequently, the drive assembly 4 drives the upper ends of the two sets of crushing rods 21 to rotate closer to each other, that is, the upper ends of the crushing rods 21 gradually retract. When the two sets of crushing rods 21 approach each other, the material is crushed. Because there is a gap between the crushing rods 21, the crushed material falls downward and separates from the crushing rods 21, and enters the grinding assembly 3. The material is first subjected to preliminary crushing by the crushing rods 21 in order to carry out subsequent grinding.

[0050] Reference Figure 1The inner top wall of the tank body 1 is set in an arc shape. The end of the crushing rod 21 away from the drive assembly 4 slides against the inner wall of the tank body 1. That is, the end of the crushing rod 21 abuts against the arc side of the top of the tank body 1. When the crushing rod 21 rotates, its upper end always remains against the inner wall of the tank body 1, reducing the phenomenon of material separating from the crushing rod 21 before initial crushing, so that the crushing rod 21 can fully crush the material when rotating.

[0051] Reference Figure 1 , Figure 2 , Figure 5 The grinding assembly 3 includes a grinding plate 31 and a grinding roller 32. The grinding plate 31 is located below the crushing rod 21. The upper side of the grinding plate 31 is connected to the drive assembly 4. An arc-shaped part 6 is provided below the grinding plate 31. The grinding roller 32 is located inside the arc-shaped part 6, and the arc-shaped part 6 is located at the bottom of the grinding roller 32 to support the grinding roller 32.

[0052] The guide component 5 is connected to the grinding roller 32. When the drive component 4 drives the grinding plate 31 to rotate, the grinding roller 32 moves accordingly. When the grinding roller 32 moves relative to the tank 1, the guide component 5 drives the grinding roller 32 to rotate.

[0053] The drive assembly 4 drives the crushing rod 21 and the grinding plate 31 to rotate synchronously. After being crushed, the material falls onto the grinding plate 31 and then enters the space between the arc-shaped part 6 and the grinding roller 32. At the same time, the guide assembly 5 drives the grinding roller 32 to rotate. The grinding roller 32 works with the arc-shaped part 6 to grind the material.

[0054] Reference Figure 1 , Figure 2 , Figure 7 Two sets of grinding plates 31 are provided, each set located below one of the two sets of crushing rods 21. An arc-shaped portion 6 is positioned on the side of each grinding plate 31 facing away from the other grinding plate 31. When the crushing rods 21 are in the open state, the grinding plates 31 are also in the open state. During rotation, the side of the grinding plates 31 always aligns with the bottom of the crushing rods 21, allowing the crushed material to fall onto the grinding plates 31. Specifically, the upper end of the crushing rods 21 and the connection point between the arc-shaped portion 6 and the grinding plates 31 are vertically aligned, allowing the material crushed by the crushing rods 21 to enter between the arc-shaped portion 6 and the grinding roller 32.

[0055] Reference Figure 3 , Figure 4The drive assembly 4 includes a power component 41, a transmission component 42, an inner rod 43, and a sleeve rod 44. The inner rod 43 is rotatably mounted on the tank body 1 and is arranged in a horizontal direction. The sleeve rod 44 is rotatably sleeved on the outside of the inner rod 43. The inner rod 43 is arranged along the arrangement direction of the multiple crushing rods 21. The power component 41 is a motor and is located outside the tank body 1. The transmission component 42 is located between the power component 41 and the inner rod 43. The output end of the power component 41 is connected to the inner rod 43 and the outer rod respectively through the transmission component 42. The two sets of crushing rods 21 are connected to the inner rod 43 and the outer rod respectively.

[0056] The power component 41 drives the inner rod 43 and the sleeve rod 44 to rotate in opposite directions through the transmission component 42, which in turn drives the two sets of crushing rods 21 to rotate in opposite directions, so that the two sets of crushing rods 21 move away from each other or move closer to each other. When the two sets of crushing rods 21 are close to each other, the material is crushed.

[0057] Reference Figure 4 The transmission component 42 includes an intermediate bevel gear 421, a first bevel gear 422, and a second bevel gear 423. The ends of the inner rod 43 and the sleeve rod 44 both extend to the outside of the tank body 1. The end of the inner rod 43 extends to the outside of the sleeve rod 44. The intermediate bevel gear 421 is coaxially connected to the output end of the power component 41. The first bevel gear 422 is coaxially fixedly connected to the inner rod 43. The second bevel gear 423 is coaxially fixedly connected to the sleeve rod 44. The intermediate bevel gear 421 is located between the first bevel gear 422 and the second bevel gear 423, and the intermediate bevel gear 421 meshes with both the first bevel gear 422 and the second bevel gear 423.

[0058] The power component 41 drives the intermediate bevel gear 421 to rotate. The rotation of the intermediate bevel gear 421 drives the first bevel gear 422 and the second bevel gear 423 to rotate in opposite directions, which in turn drives the inner rod 43 and the sleeve rod 44 to rotate in opposite directions.

[0059] Reference Figure 2 , Figure 4 , Figure 5 Multiple clearance grooves 441 are provided on the sleeve rod 44, and each clearance groove 441 corresponds one-to-one with a different crushing rod 21 in each set of crushing rods 21. The crushing rods 21 on the inner rod 43 are connected to the inner rod 43 through the clearance grooves 441. This reduces the interference between the sleeve rod 44 and the inner rod 43. An intermediate ring 442 is provided in the clearance groove 441, and the intermediate ring 442 is fixedly connected to the inner rod 43. The outer side of the intermediate ring 442 and the outer side of the sleeve rod 44 are located on the same arc surface.

[0060] Reference Figure 5The two sets of grinding plates 31 are connected to the sleeve rod 44 and the inner rod 43 respectively. The grinding plate 31 on the sleeve rod 44 is directly connected to the side of the sleeve rod 44, and the grinding plate 31 on the inner rod 43 is connected to the inner rod 43 through the intermediate ring 442. That is, when the power component 41 drives the inner rod 43 and the sleeve rod 44 to rotate, it can drive the two sets of grinding plates 31 to rotate synchronously.

[0061] The grinding plates 31 and crushing rods 21, mounted on the inner rod 43, are symmetrically arranged around the axis of the inner rod 43. This ensures that when the upper ends of the two sets of crushing rods 21 are retracted, the lower ends of the two sets of grinding plates 31 are also retracted. The crushing rods 21 are always aligned with the grinding plates 31 in the vertical direction, ensuring that the crushed material falls onto the grinding plates 31. During the grinding process, the crushing rods 21 rotate slowly to reduce the heat generated by friction and to minimize sparks, thereby improving the stability of crushing and grinding.

[0062] Reference Figure 1 , Figure 3 , Figure 5 The guiding assembly 5 includes a guiding rack 51 and a guiding gear 52, both of which are disposed on the outside of the tank body 1. The guiding rack 51 is arc-shaped around the inner rod 43, meaning that the guiding rack 51 and the grinding roller 32 follow the same trajectory as the grinding plate 31. The guiding gear 52 meshes with the guiding rack 51. A connecting rod 7 is provided at the end of the grinding roller 32. An arc-shaped groove 13 is provided through the side of the tank body 1. The connecting rod 7 slides within the arc-shaped groove 13. The center of the arc-shaped groove 13 is aligned with the axis of the inner rod 43, meaning that the arc-shaped groove 13 and the guiding rack 51 are concentrically arranged. The connecting rod 7 passes through the arc-shaped groove 13 and is coaxially and fixedly connected to the guiding gear 52. The guiding rack 51 is fixedly disposed on the tank body 1.

[0063] When the grinding plate 31 moves the grinding roller 32 via the arc-shaped part 6, the grinding roller 32 drives the connecting rod 7 to slide within the arc-shaped groove 13, causing the guide gear 52 to move relative to the guide rack 51. At the same time, the guide gear 52 rotates to drive the grinding roller 32 to rotate. Thus, the grinding roller 32 rotates while rotating with the grinding plate 31, thereby grinding the material.

[0064] Reference Figure 3 , Figure 4 , Figure 6 A support rod 8 is provided on the tank body 1, and the support rod 8 is located on the outside of the tank body 1. The support rod 8 is also arc-shaped around the inner rod 43. A connecting plate 71 is provided on the connecting rod 7, and the connecting plate 71 is rotatably connected to the connecting rod 7. The connecting plate 71 is slidably sleeved on the outside of the support rod 8, that is, the connecting plate 71 can slide outside the support rod 8. A spring 72 is provided on the connecting plate 71. The spring 72 is a spring, one end of which is connected to the connecting plate 71, and the other end is connected to the support rod 8. The spring 72 is used to drive the grinding roller 32 to abut against the arc-shaped part 6.

[0065] The first spring 72 is located on the side of the connecting plate 71 away from the other connecting plate 71, and the first spring 72 is always in a compressed state. The first spring 72 pushes the grinding roller 32 toward the arc-shaped part 6 through the connecting plate 71, thereby realizing that the grinding roller 32 and the arc-shaped part 6 are in contact, so as to carry out subsequent grinding.

[0066] In addition, different elastic springs 72 can be selected according to different crushing requirements, thereby adjusting the contact force between the grinding roller 32 and the arc-shaped part 6, and thus adjusting the grinding force of the grinding roller 32 to grind materials of different particle sizes.

[0067] The side of the arc-shaped part 6 away from the grinding plate 31 slides against the inner wall of the tank 1. Before the arc-shaped part 6 moves to the discharge port 12, the material is always above the arc-shaped part 6 so that the grinding roller 32 can fully grind the material.

[0068] Reference Figure 5 , Figure 6 The support rod 8 is located between the two sets of grinding rollers 32, that is, the support rod 8 cooperates with the connecting plate 71 on both sets of grinding rollers 32. A retaining sleeve 81 is provided in the middle of the support rod 8. The diameter of the retaining sleeve 81 is larger than the diameter of the support rod 8, so that when the connecting plate 71 moves to the retaining sleeve 81, it can abut against the retaining sleeve 81, thereby limiting the range of movement of the connecting plate 71.

[0069] Two sets of crushing rods 21 approach each other to crush the material, while two sets of grinding plates 31 also approach each other. At this time, the grinding roller 32 rotates to grind the material. As the grinding roller 32 moves with the grinding plate 31, the connecting plate 71 moves on the support rod 8. After the connecting plate 71 moves to abut against the retaining sleeve 81, the connecting plate 71 and the grinding roller 32 stop moving. At this time, the grinding roller 32 is located at the discharge port 12. The grinding plate 31 continues to rotate, and the grinding plate 31 separates from the grinding roller 32 so that the material between the grinding plate 31 and the grinding roller 32 falls between them and is discharged through the discharge port 12.

[0070] Reference Figure 1 , Figure 7 A sieve plate 9 is installed at the discharge port 12, and multiple sieve holes 91 are evenly distributed on the sieve plate 9. The ground material is screened through the sieve plate 9 to break up clumps and reduce the occurrence of clumping in the discharged material.

[0071] Reference Figure 1 , Figure 7The screen plate 9 is slidably mounted inside the discharge port 12. A second spring 92 is located at the bottom of the tank body 1, also positioned at the bottom of the screen plate 9. The second spring 92 is a spring connected to the screen plate 9 and is used to move the screen plate 9 upwards. A push rod 61 is located at the bottom of the arc-shaped section 6. As the arc-shaped section 6 rotates, the push rod 61 passes through multiple screen holes 91 sequentially. When the push rod 61 reaches the screen plate 9, it pushes the screen plate 9 downwards. When the push rod 61 enters a screen hole 91, the second spring 92 moves the screen plate 9 upwards to reset. This process repeats, passing through multiple screen holes 91, thus vibrating the screen plate 9 to screen the material and improve the screening effect.

[0072] Reference Figure 4 , Figure 7 Multiple push rods 61 are provided on the arc-shaped part 6. The arrangement direction of the multiple push rods 61 is parallel to the inner rod 43, so that the push rods 61 can pass through all the screen holes 91 when rotating with the arc-shaped part 6. While driving the screen plate 9 to vibrate, the screen holes 91 can be cleaned, reducing the phenomenon of screen hole 91 clogging.

[0073] The implementation principle of this invention is as follows: the power component 41 drives the inner rod 43 and the sleeve rod 44 to rotate, so that the two sets of crushing rods 21 move away from each other and the upper end of the crushing rods 21 is in an open state. Then, the material is added into the tank 1 through the feed port 11. The material enters between the crushing rods 21. The power component 41 drives the inner rod 43 and the sleeve rod 44 to rotate in opposite directions. The two sets of crushing rods 21 move closer to each other to perform preliminary crushing on the material between them. After crushing, the material separates from the crushing rods 21 and falls onto the grinding plate 31. The grinding plate 31 rotates synchronously with the crushing rods 21. The grinding plate 31 drives the grinding roller 32 to rotate. At the same time, the guide gear 52 moves relative to the guide rack 51, so that the grinding roller 32 rotates. The grinding roller 32 cooperates with the arc-shaped part 6 to grind the material.

[0074] The crushing rod 21 and the grinding roller 32 work simultaneously. During the process, the crushing rod 21 rotates slowly to perform preliminary crushing and grinding of the material, reducing the occurrence of sparks or overheating during the crushing process. The crushing rod 21 is used to perform preliminary crushing of the material, at which point the particle size of the material is relatively large, which is relatively safe. When it is necessary to process the material into smaller particles, the grinding roller 32 is used for grinding, reducing safety hazards. At the same time, the material can be processed into the specified particle size quickly, improving crushing efficiency.

[0075] The present invention also discloses a pulverizing method using the above-mentioned pulverizing device.

[0076] A pulverizing method includes the following steps:

[0077] S1, the power component 41 drives the inner rod 43 and the sleeve rod 44 to rotate, which in turn drives the two sets of crushing rods 21 to rotate in opposite directions, so that the upper ends of the two sets of crushing rods 21 are in an open state.

[0078] S2, the material is fed into the crushing rods 21 through the feed inlet 11;

[0079] S3, the power component 41 drives the two sets of crushing rods 21 to rotate and move closer to each other, so as to perform preliminary crushing of the material between the crushing rods 21;

[0080] S4, the crushed material falls onto the grinding plate 31 and then enters the space between the arc-shaped part 6 and the grinding roller 32;

[0081] S5, the grinding roller 32 moves with the grinding plate 31, and at the same time the guide gear 52 moves relative to the guide rack 51, driving the grinding roller 32 to rotate, which, together with the arc-shaped part 6, grinds the material.

[0082] S6, after the connecting plate 71 moves to engage with the retaining sleeve 81, the grinding roller 32 stops moving, the grinding plate 31 continues to move and separates from the grinding roller 32, and the material between the arc-shaped part 6 and the grinding roller 32 enters the screen plate 9.

[0083] S7, the grinding plate 31 continues to rotate, and the push rod 61 moves through the arc part 6. The push rod 61 cooperates with the screen hole 91 and drives the screen plate 9 to vibrate under the action of the spring part 92, so that the material is discharged through the discharge port 12 after vibration treatment.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A crushing device, comprising a tank and a feed inlet located on the tank, characterized in that, The tank contains a crushing assembly, a grinding assembly, a driving assembly, and a guiding assembly. The crushing assembly includes two sets of crushing rods arranged alternately in the horizontal direction. The driving assembly is connected to the lower end of the crushing rods to drive them to rotate. The feed inlet corresponds to the middle of the two sets of crushing rods. The grinding assembly includes a grinding plate and a grinding roller. The grinding plate is located below the crushing rods. The upper part of the grinding plate is connected to the driving assembly. The lower part of the grinding plate is provided with an arc-shaped part that abuts against the bottom of the grinding roller. The guiding assembly is connected to the grinding roller. When the grinding plate drives the grinding roller to move relative to the tank, the guiding assembly drives the grinding roller to rotate. The drive assembly drives the crushing rod and the grinding plate to rotate synchronously, while the grinding roller rotates on its own. The material crushed by the crushing rod enters between the grinding roller and the arc-shaped part. The grinding roller rotates on its own and cooperates with the arc-shaped part to grind the material. The drive assembly includes a power component, a transmission component, an inner rod, and a sleeve rod. The inner rod is rotatably mounted on the tank body, and the sleeve rod is rotatably sleeved on the outside of the inner rod. The output end of the power component is connected to the sleeve rod and the inner rod respectively through the transmission component to drive the sleeve rod and the inner rod to rotate in opposite directions. Two sets of crushing rods are connected to the inner rod and the sleeve rod respectively. The sleeve rod has multiple clearance grooves, and the crushing rods on the inner rod pass through the clearance grooves to connect with the inner rod. There are two sets of grinding plates, which are located below the two sets of crushing rods respectively. The arc-shaped part is located on the side of the grinding plate away from the other grinding plate. Two sets of grinding plates are connected to the sleeve rod and the inner rod respectively. The grinding plates and crushing rods installed on the inner rod are symmetrically arranged around the axis of the inner rod.

2. The pulverizing device according to claim 1, characterized in that, The guiding assembly includes a guiding rack and a guiding gear. The guiding rack is installed on the outside of the tank and is arc-shaped around the inner rod. The guiding gear meshes with the guiding rack. A connecting rod is coaxially fixed at the end of the grinding roller. An arc-shaped groove is opened on the tank. The connecting rod passes through the arc-shaped groove and is coaxially fixedly connected to the guiding gear. The connecting rod slides within the arc-shaped groove.

3. The pulverizing device according to claim 2, characterized in that, The tank is equipped with a support rod, and a connecting plate is rotatably mounted on the end of the connecting rod away from the grinding roller. The support rod is arc-shaped around the inner rod, and the connecting plate is slidably sleeved on the outside of the support rod. The connecting plate is equipped with a spring piece connected to the support rod, which is used to drive the grinding roller to abut against the arc-shaped part.

4. The pulverizing device according to claim 3, characterized in that, The side of the arc-shaped part away from the grinding plate slides against the inner wall of the tank. The support rod is located between the two sets of grinding rollers. A stop sleeve is set in the middle of the support rod. When the two sets of grinding plates rotate and approach each other, the grinding rollers move with the grinding plates. When the connecting plate abuts against the stop sleeve, the grinding rollers stop moving. The grinding plates continue to rotate, causing the arc-shaped part to separate from the grinding rollers.

5. The pulverizing device according to claim 4, characterized in that, The bottom of the tank has a discharge port, and a screen plate is slidably mounted inside the discharge port. The screen plate has multiple screen holes for screening materials. A second spring is set at the bottom of the tank. The second spring is connected to the screen plate to drive the screen plate to move upward. A push rod is set at the bottom of the arc-shaped part. The push rod rotates with the arc-shaped part and passes through multiple screen holes in sequence. When the push rod passes through the screen holes, the screen plate vibrates under the action of the second spring to screen the materials.

6. The pulverizing device according to claim 1, characterized in that, The inner top wall of the tank is designed to be arc-shaped, and the end of the crushing rod away from the drive assembly slides against the inner wall of the tank.

7. A pulverizing method, employing the pulverizing apparatus as described in claim 5, characterized in that, The process includes the following steps: the power unit drives the inner rod and sleeve rod to rotate, which in turn drives the two sets of crushing rods to rotate in opposite directions, so that the upper ends of the two sets of crushing rods are in an open state; the material is fed into the crushing rods through the feed inlet; the power unit drives the two sets of crushing rods to rotate and move closer to each other, so as to perform preliminary crushing of the material between the crushing rods; the crushed material falls onto the grinding plate and then enters the arc-shaped part between the grinding roller. The grinding roller moves with the grinding plate, and at the same time, the guide gear moves relative to the guide rack, causing the grinding roller to rotate. It grinds the material in conjunction with the arc-shaped part. After the connecting plate moves to engage with the retaining sleeve, the grinding roller stops moving, and the grinding plate continues to move and separates from the grinding roller. The material between the arc-shaped part and the grinding roller enters the screen plate. The grinding plate continues to rotate, and the arc-shaped part drives the push rod to move. The push rod engages with the screen hole and, under the action of the second spring, drives the screen plate to vibrate, so that the material is discharged through the outlet after being vibrated.

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