Ultrafine grinding device for waste tire cracking regenerated carbon black

Abstract

The invention discloses a superfine grinding device for waste tire cracking regenerated carbon black, and relates to the technical field of carbon black powder processing equipment, the superfine grinding device comprises a shell structure, a grinding mechanism, a transmission mechanism, a powder scattering mechanism and a grinding roller cleaning mechanism; the shell structure forms an operation space for raw materials to enter, airflow to pass through and powder to output, the transmission mechanism drives the grinding mechanism to perform multi-stage grinding on the raw materials, the powder scattering mechanism vibrates, scatters and guides out the ground carbon black powder, and the grinding roller cleaning mechanism cleans powder attached to the surface of a grinding roller; the ground powder enters the airflow channel after being vibrated and dispersed, and is output upwards under the action of the screening and filtering structure and negative pressure leading-out; according to the invention, the coordination between circulation, export and continuous grinding of regenerated carbon black in the equipment can be improved, and the continuity and stability of the ultrafine grinding process are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of carbon black powder processing equipment, specifically relating to an ultrafine grinding device for regenerating carbon black from waste tire pyrolysis. Background Technology

[0002] Recycled carbon black can be obtained from the pyrolysis of waste tires. This recycled carbon black, as a powder material, can be further applied in rubber products, plastic products, coatings, fillers, and other related industrial fields. To improve the utilization value of recycled carbon black, it is usually necessary to further refine the carbon black obtained from pyrolysis to make its particle size distribution and powder state more suitable for subsequent processing and use requirements. Therefore, ultrafine grinding equipment is one of the important pieces of equipment in the recycled carbon black processing stage during the resource utilization of waste tires.

[0003] In practical use, existing recycled carbon black grinding equipment generally needs to complete the processes of raw material input, continuous grinding, powder conveying, and finished product discharge, and requires good continuity and stability between each processing stage. Since pyrolysis recycled carbon black is a relatively light and easily dispersed powder material, its state changes as the grinding degree increases. This places high demands on the material flow, grinding continuity, and powder discharge stability within the overall operating space of the equipment.

[0004] However, existing ultrafine grinding devices for recycled carbon black generally suffer from a significant technical problem during system operation: after the raw material is continuously ground and gradually refined into lightweight powder, it is difficult to maintain good coordination between the powder's flow and discharge within the equipment and subsequent continuous grinding, which can easily affect the continuity and stability of the overall grinding process. This problem further restricts the processing efficiency of ultrafine grinding of recycled carbon black; therefore, further research is necessary to address this issue. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide an ultrafine grinding device for the regeneration of carbon black from waste tire pyrolysis, which can solve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An ultrafine grinding device for recycling carbon black from waste tire pyrolysis includes a shell structure, a grinding mechanism disposed within the shell structure, a transmission mechanism for driving the grinding mechanism to perform grinding, a powder dispersing mechanism disposed below the transmission mechanism, and a grinding roller cleaning mechanism disposed inside the grinding mechanism. The shell structure forms a working space for raw material entry, airflow passage, and powder output; The transmission mechanism is connected to the grinding mechanism to drive the raw material to perform multi-stage grinding; The powder dispersing mechanism is used to disperse and discharge the ground carbon black powder. The grinding roller cleaning mechanism is used to clean the grinding rollers in the grinding mechanism to reduce the impact of powder adhesion on subsequent grinding.

[0007] Furthermore, the housing structure includes a base and a cylinder fixed to one side of the top of the base. The transmission mechanism is provided on the surface of the base, and a motor for controlling the transmission mechanism is provided on one side of the base. The top of the cylinder is provided with a sealing plate, the top of the sealing plate is connected to an air outlet pipe, and the bottom of the sealing plate is provided with a screening and filtering structure. The cylinder body has air inlet filter windows evenly distributed below the surface, a feed pipe is inclined on one side of the cylinder body, and a convex ring is provided above the air inlet filter windows inside the lower part of the cylinder body.

[0008] Furthermore, the transmission mechanism includes a fixed base fixed to the bottom of the cylinder, a vertical cylinder disposed at the center of the surface of the fixed base, and a rotating shaft rotatably mounted above the vertical cylinder; The grinding mechanism includes a liner fixed to the inner wall of the cylinder and multiple grinding discs spaced apart along the axial direction of the rotating shaft. The inner wall of the liner is uniformly provided with annular grooves corresponding to the multiple grinding discs. The surface of the grinding disc is uniformly provided with a fixed shaft. An annular grinding roller is sleeved on the surface of the fixed shaft. The annular grinding roller extends beyond the grinding disc and cooperates with the annular groove to grind the carbon black powder. Welded support blocks are uniformly arranged between the outer surface of the liner and the inner wall of the cylinder, so that the liner is suspended and fixed and a gap is formed between it and the inner wall of the cylinder for gas to pass through.

[0009] Furthermore, a feeding plate is provided at the top of the rotating shaft, and the discharge end of the feeding pipe is located above the center of the feeding plate. The surface of the feeding plate is uniformly provided with guide grooves corresponding to multiple annular grinding rollers, so that the raw material spreads outward along the guide grooves and falls to the corresponding annular grinding rollers when the feeding plate rotates. After a single grinding, the powder falls to the lower layer for further grinding, thus achieving multi-stage grinding.

[0010] Furthermore, a fixing plate is provided at the top of the vertical cylinder, and the upper surface of the fixing plate is provided with wavy protrusions; The powder dispersing mechanism includes a conical dispersing disc that is slidably installed below the surface of the rotating shaft. The conical dispersing disc has a conical structure with a high center and low edges, and the diameter of the conical dispersing disc is consistent with the outer diameter of the liner, so that the ground powder is dispersed into the gap between the liner and the cylinder.

[0011] Furthermore, a fixed cylinder is provided at the bottom center of the conical material tray. The fixed cylinder is slidably mounted on the surface of the rotating shaft. Extension plates are provided on both sides of the bottom of the fixed cylinder. A fixed rod is provided at the bottom of the extension plate. A ball is embedded in the lower end face of the fixed rod. The surface of the rotating shaft is evenly provided with track grooves, and a sliding shaft is slidably installed inside the rotating shaft. The surface of the sliding shaft is evenly provided with internal threaded holes corresponding to the track grooves. The surface of the fixed cylinder is symmetrically screwed with first positioning bolts. The two first positioning bolts pass through the lowest track groove and cooperate with the internal threaded holes.

[0012] Furthermore, the track groove is waist-shaped and its long axis is set vertically; When the shaft rotates, the sliding shaft and the conical material tray rotate synchronously through the first positioning bolt, and the powder dispersing mechanism can slide vertically along the track groove so that the balls roll along the wavy raised surface, which in turn causes the conical material tray to vibrate up and down when rotating, so that the powder falling onto the surface of the conical material tray diffuses outward under the action of centrifugal force and vibration.

[0013] Furthermore, the grinding roller cleaning mechanism is movably disposed at the center of each grinding disc and located between multiple annular grinding rollers. The grinding roller cleaning mechanism includes a chassis slidably mounted on the surface of a rotating shaft. Multiple track rods are uniformly and horizontally arranged on the upper surface of the chassis. A slider is slidably mounted on the surface of the track rod. The slider extends outward beyond the range of the chassis. A cleaning brush adapted to the annular grinding roller is provided at the end of the slider. A sleeve is provided at the center of the upper surface of the chassis. The sleeve is slidably mounted on the rotating shaft. A second fixed bolt is symmetrically screwed through the surface of the sleeve. The second fixed bolt passes through the upper track groove and is adapted to the internal threaded hole.

[0014] Furthermore, the track groove and the internal threaded hole are provided in two types, with the bottom one used to fix the powder dispersing mechanism, and the upper ones corresponding to multiple grinding discs to fix multiple grinding roller cleaning mechanisms. When the shaft rotates, it drives the chassis to rotate, so that the slider expands outward through centrifugal force, thereby making the cleaning brush contact the surface of the corresponding annular grinding roller. The sliding shaft vibrates up and down along with the conical material distribution disc, and through the cooperation of the internal threaded hole and the second fixed bolt, it drives the entire grinding roller cleaning mechanism to vibrate up and down, so as to clean the carbon black powder adhering to the surface of the annular grinding roller.

[0015] Furthermore, the air outlet pipe is used to connect to the negative pressure pump. External air enters the cylinder through the air inlet filter window and flows upward through the gap between the liner and the cylinder. With the cooperation of the screening and filtering structure, the powder that has been ground and dispersed is discharged upward. The annular grinding roller rotates on its own axis while revolving with the grinding disc, and rotates relative to the cleaning brush to improve the cleaning effect.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In contrast to existing technologies where recycled carbon black is continuously ground and gradually refined into lightweight powder, the flow and discharge of the powder within the equipment are difficult to coordinate with subsequent continuous grinding, which can easily affect the continuity and stability of the overall grinding process, this application addresses this issue by setting up a shell structure, grinding mechanism, and transmission mechanism within the same working space. This allows the raw material to enter a multi-stage grinding path under the drive of the transmission mechanism, and continuously enter different grinding levels through upper feeding dispersion and lower step-by-step falling. This results in a more coherent and continuous grinding process for the recycled carbon black within the device, avoiding unclear processing paths for the raw material after entering the grinding area, which could affect the overall operational stability.

[0017] In contrast to existing technologies where lightweight carbon black powder does not flow smoothly within the equipment and tends to aggregate and stagnate in later stages of grinding, affecting the stability of the output, this application addresses the problem by setting up a powder dispersion mechanism and combining it with an airflow channel formed inside the shell. This allows the carbon black powder, after multi-stage grinding, to be dispersed in the lower region and diffused outwards before entering the upward channel between the liner and the cylinder. Subsequently, with the cooperation of the screening and filtration structure and the negative pressure output path, it continues to be output upwards. This connects the powder dispersion, internal flow, and external output, improving the orderly flow and continuous output of the ground lightweight powder within the device.

[0018] In contrast to the problem in existing technologies where carbon black powder tends to adhere to the grinding contact area during continuous grinding, further interfering with subsequent powder flow and the stability of continuous processing, this application addresses this issue by setting up a grinding roller cleaning mechanism. This mechanism enables the cleaning component to continuously contact and clean the corresponding grinding roller during the grinding process. Combined with the rotation and vibration processes, it brushes away the adhered powder, thereby reducing the impact of powder adhesion on the grinding state and subsequent processing rhythm. This allows for better synergy between multi-stage grinding, powder flow, and powder discharge, thereby improving the continuity and stability of the entire ultrafine grinding process for recycled carbon black. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the grinding mechanism of the present invention; Figure 5 This is a schematic diagram of the installation structure of the grinding roller cleaning mechanism of the present invention; Figure 6This is a schematic diagram of the power mechanism structure of the present invention; Figure 7 This is a schematic diagram of the sliding shaft mounting structure of the present invention; Figure 8 This is a bottom view schematic diagram of the powder dispersing mechanism of the present invention; Figure 9 This is a schematic diagram of the grinding roller cleaning mechanism of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Shell structure; 11. Base; 12. Cylinder; 13. Air inlet filter window; 14. Sealing plate; 15. Air outlet pipe; 16. Screening and filtering structure; 17. Protruding ring; 18. Feed pipe; 2. Grinding mechanism; 21. Liner; 22. Annular groove; 23. Welded support block; 24. Grinding disc; 25. Fixed shaft; 26. Annular grinding roller; 27. Feed plate; 271. Guide groove; 3. Transmission mechanism; 31. Fixed base; 32. Vertical cylinder; 33. Fixed plate; 34. Corrugated protrusion; 35. Rotating shaft; 351. Track groove; 36. Sliding shaft; 361. Internal threaded hole; 4. Powder dispensing mechanism; 41. Conical dispensing disc; 42. Fixed cylinder; 43. Extension plate; 44. Fixed rod; 45. Ball bearing; 46. First positioning bolt; 5. Grinding roller cleaning mechanism; 51. Chassis; 52. Track rod; 53. Slider; 54. Cleaning brush; 55. Sleeve; 56. Second fixing bolt. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] See Figures 1-9An ultrafine grinding device for recycled carbon black from waste tire pyrolysis includes a shell structure 1, a grinding mechanism 2 disposed within the shell structure 1, a transmission mechanism 3 for driving the grinding mechanism 2 to perform grinding, a powder dispersing mechanism 4 disposed below the transmission mechanism 3, and a grinding roller cleaning mechanism 5 disposed inside the grinding mechanism 2. Recycled carbon black from waste tire pyrolysis typically exhibits characteristics such as light weight, easy dispersion, easy adhesion, and high requirements for continuous processing stability during ultrafine grinding. Existing grinding equipment often struggles to maintain good coordination between raw material input, continuous grinding, powder flow, and powder discharge, easily leading to discontinuous grinding, uneven powder flow, and powder accumulation within the equipment, affecting subsequent processing. To address the issue of processing waste tire pyrolysis recycled carbon black, in order to complete the feeding, grinding, dispersing, cleaning, and discharge processes within the same device, the shell structure 1, grinding mechanism 2, transmission mechanism 3, powder dispersing mechanism 4, and grinding roller cleaning mechanism 5 together constitute a continuous operation system. The shell structure 1 is used to define the overall operating area, the grinding mechanism 2 is used to receive raw materials and complete multi-stage refining, the transmission mechanism 3 is used to provide continuous motion input to the grinding mechanism 2, the powder dispersing mechanism 4 is used to vibrate and guide the ground carbon black powder, and the grinding roller cleaning mechanism 5 is used to continuously clean the grinding rollers in the grinding mechanism 2, thereby forming a relatively continuous processing flow for waste tire pyrolysis recycled carbon black within the device.

[0023] The shell structure 1 forms a working space for raw material entry, airflow passage, and powder output. In the ultrafine grinding process of waste tire pyrolysis recycled carbon black, not only is particle size refinement required, but a flow path matching the powder state also needs to be formed inside the equipment. If the working space is not arranged reasonably, the light carbon black powder is prone to disorderly dispersion or local stagnation inside the equipment after grinding, which will affect the continuous grinding and subsequent output effect. In order to enable the raw material to enter the grinding area and enable the airflow to form an upward passage path inside the device, the shell structure 1 is enclosed with a working space for raw material entry, airflow passage, and powder output, so that the waste tire pyrolysis recycled carbon black raw material can be continuously processed along the predetermined processing path after entering, and the powder after grinding and dispersing can continue to move under the action of airflow.

[0024] The transmission mechanism 3 is connected to the grinding mechanism 2 to drive the raw material to perform multi-stage grinding. The carbon black raw material from waste tire pyrolysis is initially large and unevenly distributed. If only a single grinding is performed, it is often difficult to meet the requirements of ultra-fine grinding. Moreover, single-stage processing is also prone to causing local insufficient processing. In order to improve the fineness of the recycled carbon black and enable the raw materials of different levels to be repeatedly processed in continuous motion, the transmission mechanism 3 is connected to the grinding mechanism 2. After the transmission mechanism 3 outputs rotational power, it drives each grinding component in the grinding mechanism 2 to work synchronously, so that the carbon black raw material entering the grinding area falls down and is ground step by step in the multi-layer grinding path, thereby realizing multi-stage grinding processing.

[0025] The powder dispersing mechanism 4 is used to disperse and discharge the ground carbon black powder. After multi-stage grinding, the carbon black recycled from waste tire pyrolysis has a smaller particle size and becomes lighter. The lightweight powder is prone to agglomeration, accumulation, and uneven local falling during the downward and outward movement. Agglomerated powder is not conducive to full contact with the rising airflow and may also affect the subsequent discharge. In order to ensure that the ground powder can be dispersed in time and guided to the outside, the powder dispersing mechanism 4 is set below the transmission mechanism 3. During the rotation and vibration process, the powder dispersing mechanism 4 disperses the falling carbon black powder and diffuses it outward, so that the ground carbon black powder can enter the discharge area more evenly.

[0026] The grinding roller cleaning mechanism 5 is used to clean the grinding rollers in the grinding mechanism 2 to reduce the impact of powder adhesion on subsequent grinding. Waste tire pyrolysis recycled carbon black is prone to adhere to the grinding contact surface during repeated extrusion and refining. If the adhered powder continues to accumulate, it can easily affect the effective contact between the subsequent raw materials and the grinding components, and may also weaken the continuity and uniformity of the multi-stage grinding process. In order to reduce the interference of carbon black powder adhesion on subsequent grinding, the grinding roller cleaning mechanism 5 is set inside the grinding mechanism 2 and forms a contact cleaning relationship with the corresponding grinding roller during the transmission process, so that the carbon black powder adhering to the surface of the grinding roller can be brushed off in time, thereby maintaining the continuous and stable grinding state.

[0027] See Figures 1-3 The shell structure 1 includes a base 11 and a cylinder 12 fixed to one side of the top of the base 11. A transmission mechanism 3 is provided on the surface of the base 11, and a motor for controlling the transmission mechanism 3 is provided on one side of the base 11. The ultrafine grinding operation of waste tire pyrolysis recycled carbon black requires stable bearing, internal closed processing, and continuous power input. If the supporting part, main cavity and power part of the equipment are not reasonably arranged, it is easy to cause unclear internal processing path and unstable power transmission during the grinding operation. In order to form a stable overall structure and provide basic support for the internal grinding, dispersing and discharge process, the base 11 is used to support the cylinder 12, the transmission mechanism 3 and the motor. The cylinder 12 is fixed to one side of the top of the base 11 and encloses the main processing space. The transmission mechanism 3 is provided on the surface of the base 11 to output power upward. The motor is provided on one side of the base 11 and is used to control the operation of the transmission mechanism 3, so that the device has a stable installation foundation and a continuous power source.

[0028] A sealing plate 14 is provided at the top of the cylinder 12, and an air outlet pipe 15 is connected to the top of the sealing plate 14. A screening and filtration structure 16 is provided at the bottom of the sealing plate 14. Waste tire pyrolysis recycled carbon black will form light fine powder after ultrafine grinding. If the light fine powder lacks upper sealing and screening during the discharge process, the powder flow direction is prone to instability and discontinuous discharge. In order to form a relatively closed top area with discharge function in the upper part of the cylinder 12, the sealing plate 14 is provided at the top of the cylinder 12, the air outlet pipe 15 is connected to the top of the sealing plate 14 to form an upward discharge connection channel, and the screening and filtration structure 16 is provided at the bottom of the sealing plate 14 to screen and filter the upward powder, so that the rising powder can further cooperate with the discharge process after reaching the top area.

[0029] The cylinder 12 has air inlet filter windows 13 evenly distributed below the surface. A feed pipe 18 is inclinedly arranged on one side of the cylinder 12. A convex ring 17 is arranged above the air inlet filter windows 13 inside the lower part of the cylinder 12. When waste tire pyrolysis recycled carbon black is continuously processed inside the device, it is necessary to take into account both the raw material feeding and airflow entry functions. If the feeding position and air inlet position are not set reasonably, the raw material entry path and the airflow path can easily interfere with each other, affecting the internal powder flow and discharge effect. In order to ensure that the raw material can be stably introduced from the outside and that the outside air can enter from the lower part of the cylinder 12, the feed pipe 18 is inclinedly arranged on one side of the cylinder 12 and used to introduce the carbon black raw material into the cylinder 12. Multiple air inlet filter windows 13 are evenly distributed below the surface of the cylinder 12 and used to introduce outside air. The convex ring 17 is arranged inside the lower part of the cylinder 12 and above the air inlet filter windows 13 to coordinate the relationship between the powder and airflow in the lower part of the cylinder, making the processing path in the lower part of the cylinder clearer.

[0030] See Figures 3-7 The transmission mechanism 3 includes a fixed base 31 fixed to the bottom of the cylinder 12, a vertical cylinder 32 set at the center of the surface of the fixed base 31, and a rotating shaft 35 rotatably installed above the vertical cylinder 32. When waste tire pyrolysis recycled carbon black is subjected to multi-stage grinding, a stable power transmission center needs to be established from bottom to top or from top to bottom. If the power transmission component is not supported stably or the rotation center is offset, it is easy to affect the consistency of operation of each grinding component. In order to ensure that the power is stably transmitted from the bottom to the inner grinding area, the fixed base 31 is fixed to the bottom of the cylinder 12 and is used to provide the installation foundation. The vertical cylinder 32 is set at the center of the surface of the fixed base 31 and is used to support the rotating component above. The rotating shaft 35 is rotatably installed above the vertical cylinder 32 and serves as the rotation center that runs through multiple processing levels, thereby providing a foundation for the linkage of subsequent components.

[0031] The grinding mechanism 2 includes a liner 21 fixed to the inner wall of the cylinder 12 and multiple grinding discs 24 spaced axially along the rotating shaft 35. The inner wall of the liner 21 is uniformly provided with annular grooves 22 corresponding to the multiple grinding discs 24. Fixed shafts 25 are uniformly provided on the surface of the grinding discs 24. Annular grinding rollers 26 are sleeved on the surface of the fixed shafts 25. The annular grinding rollers 26 extend beyond the grinding discs 24 and cooperate with the annular grooves 22 to grind the carbon black powder. If recycled carbon black from waste tire pyrolysis is processed on a single contact surface, insufficient grinding layers and uneven fineness are likely to occur. To ensure that the carbon black raw material can fall layer by layer and be extruded and ground layer by layer inside the device, [further measures are needed]. The liner 21 is fixed to the inner wall of the cylinder 12 and serves as an inner annular limiting and mating structure. Multiple grinding discs 24 are spaced apart along the axial direction of the rotating shaft 35 to form multiple grinding positions. Multiple annular grooves 22 are evenly arranged on the inner wall of the liner 21 and correspond to the multiple grinding discs 24 respectively. The fixed shaft 25 is evenly arranged on the surface of the grinding discs 24 and is used to install the annular grinding rollers 26. The annular grinding rollers 26 are sleeved on the surface of the fixed shaft 25 and extend beyond the grinding discs 24, forming a mating grinding relationship with the annular grooves 22. When the rotating shaft 35 drives the grinding discs 24 to rotate, the carbon black powder entering the corresponding position is continuously acted on between the annular grinding rollers 26 and the annular grooves 22, thereby completing the layer-by-layer grinding.

[0032] Welded support blocks 23 are evenly arranged between the outer surface of the liner 21 and the inner wall of the cylinder 12 to suspend and fix the liner 21 and form a gap between it and the inner wall of the cylinder 12 for gas to pass through. After grinding, the recycled carbon black from waste tire pyrolysis needs to continue to be transported upward with the help of internal airflow. If the liner 21 is completely attached to the inner wall of the cylinder 12, it will not be conducive to the formation of an upward channel for airflow inside the main structure. In order to balance the stable installation of the liner 21 and the airflow, multiple welded support blocks 23 are evenly arranged between the outer surface of the liner 21 and the inner wall of the cylinder 12. The multiple welded support blocks 23 are used to suspend and fix the liner 21 inside the cylinder 12, while leaving a gap between the outer surface of the liner 21 and the inner wall of the cylinder 12 so that external air can enter and flow upward along the gap.

[0033] See Figures 3-7A feed plate 27 is provided at the top of the rotating shaft 35. The discharge end of the feed pipe 18 is located above the center of the feed plate 27. The surface of the feed plate 27 is uniformly provided with guide grooves 271 corresponding to multiple annular grinding rollers 26, so that the raw material diffuses outward along the guide grooves 271 and falls to the corresponding annular grinding rollers 26 when the feed plate 27 rotates. After the waste tire pyrolysis recycled carbon black raw material enters the cylinder 12 from the feed pipe 18, if it falls directly into a local area, it is easy to cause the grinding load in a certain place to be too large and the processing of each layer to be uneven. In order to ensure that the raw material enters the device Before entering the grinding mechanism 2, the raw materials inside are initially dispersed. The feed plate 27 is set on the top of the rotating shaft 35, and the discharge end of the feed pipe 18 is located above the center of the feed plate 27, so that the carbon black raw materials entering the feed plate 27 fall onto the surface of the feed plate 27 first. Multiple guide grooves 271 are evenly opened on the surface of the feed plate 27 and correspond to multiple annular grinding rollers 26. When the rotating shaft 35 drives the feed plate 27 to rotate, the carbon black raw materials diffuse outward along each guide groove 271 and fall onto the corresponding annular grinding roller 26 area, so that the initial distribution of the upper grinding is more uniform.

[0034] After a single grinding, the powder falls to the lower layer for further grinding to achieve multi-stage grinding. Waste tire pyrolysis recycled carbon black may still have problems with uneven particle size and insufficient refinement after a single grinding. If the powder is directly output after a single processing, it is often difficult to meet the requirements of ultrafine grinding. In order to make the carbon black powder repeatedly refined in the same device, the powder after a single grinding by the upper annular grinding roller 26 and the annular groove 22 continues to fall downward and enters the grinding area formed by the lower grinding disc 24, the fixed shaft 25, the annular grinding roller 26 and the annular groove 22. Under the condition that the rotating shaft 35 continuously drives the multiple grinding discs 24 to rotate, the falling powder continues to be ground layer by layer, thus forming a continuous multi-stage grinding process.

[0035] See Figures 3-7 The top of the vertical cylinder 32 is provided with a fixed disk 33, and the upper surface of the fixed disk 33 is provided with a corrugated protrusion 34. If the fine powder formed by the multi-stage grinding of waste tire pyrolysis recycled carbon black is directly gathered in the lower area, it is easy to accumulate and deposit locally, which is not conducive to the subsequent expansion and discharge of powder. In order to enable the lower material dispersing mechanism to obtain a mating base surface for vibration during rotation, the fixed disk 33 is set at the top of the vertical cylinder 32, and the corrugated protrusion 34 is set on the upper surface of the fixed disk 33. The fixed disk 33 and the corrugated protrusion 34 together provide a structural basis for subsequent rolling contact and vertical vibration.

[0036] The powder dispersing mechanism 4 includes a conical dispersing disk 41 slidably mounted below the surface of the rotating shaft 35. The conical dispersing disk 41 has a conical structure with a high center and low edges, and the diameter of the conical dispersing disk 41 is consistent with the outer diameter of the liner 21, so that the ground powder is dispersed into the gap between the liner 21 and the cylinder 12. If the recycled carbon black from the pyrolysis of waste tires remains in the lower inner area after multi-stage grinding, it will affect the upper airflow and subsequent powder discharge. In order to enable the falling powder to transition from the central area to the outer periphery and enter the gap between the liner 21 and the cylinder 12, the conical dispersing disk 41 is slidably mounted below the surface of the rotating shaft 35. The conical dispersing disk 41 adopts a conical structure with a high center and low edges, so that the carbon black powder falling onto the surface of the conical dispersing disk 41 can move outward during rotation and vibration. At the same time, the diameter of the conical dispersing disk 41 is consistent with the outer diameter of the liner 21, so as to guide the outwardly diffused powder to the gap area between the liner 21 and the cylinder 12.

[0037] See Figures 6-9 A fixed cylinder 42 is provided at the bottom center of the conical material distribution plate 41. The fixed cylinder 42 is slidably mounted on the surface of the rotating shaft 35. Extension plates 43 are provided on both sides of the bottom of the fixed cylinder 42. A fixed rod 44 is provided at the bottom of the extension plate 43. A ball bearing 45 is embedded in the lower end face of the fixed rod 44. The vibration and dispersion effect of waste tire pyrolysis recycled carbon black on the surface of the conical material distribution plate 41 needs to be achieved by rotation and up and down movement. If the conical material distribution plate 41 can only rotate, it will be difficult to form a more sufficient material dispersion effect. In order to enable the conical material distribution plate 41 to both rotate and move up and down on the surface of the rotating shaft 35, the fixed cylinder 42 is provided at the bottom center of the conical material distribution plate 41 and is slidably mounted on the surface of the rotating shaft 35. The extension plates 43 are provided on both sides of the bottom of the fixed cylinder 42 and extend outward. The fixed rod 44 is provided at the bottom of the extension plate 43 to form a downward connection part. The ball bearing 45 is embedded in the lower end face of the fixed rod 44 and is used to form a rolling fit with the undulating structure below, thereby providing conditions for the vibration movement of the conical material distribution plate 41 during rotation.

[0038] The surface of the rotating shaft 35 is uniformly provided with track grooves 351, and a sliding shaft 36 is slidably installed inside the rotating shaft 35. The surface of the sliding shaft 36 is uniformly provided with internal threaded holes 361 corresponding to the track grooves 351. The surface of the fixed cylinder 42 is symmetrically screwed with first positioning bolts 46. The two first positioning bolts 46 pass through the lowest track groove 351 and cooperate with the internal threaded holes 361. In the process of waste tire pyrolysis and carbon black recycling, the powder dispersing mechanism 4 needs to maintain synchronous rotation while sliding under restricted conditions. If the guiding and connecting structure is lacking, the movement of the conical dispersing disk 41 will be affected. The trajectory will be unstable. In order to form a rotatable and liftable connection between the fixed cylinder 42, the rotating shaft 35, and the sliding shaft 36, multiple track grooves 351 are evenly opened on the surface of the rotating shaft 35. The sliding shaft 36 is slidably installed inside the rotating shaft 35. Multiple internal threaded holes 361 are evenly opened on the surface of the sliding shaft 36 and correspond to the track grooves 351. Two first positioning bolts 46 are symmetrically screwed on the surface of the fixed cylinder 42 and pass through the lowest track groove 351 and cooperate with the internal threaded holes 361. Thus, a linkage relationship is formed between the fixed cylinder 42, the sliding shaft 36, and the rotating shaft 35.

[0039] See Figures 6-9 The track groove 351 is waist-shaped and its long axis is set vertically. In the bulk material discharge stage of waste tire pyrolysis recycled carbon black, the conical bulk material plate 41 needs to have a certain vertical stroke during rotation. If the movement path is not constrained, the powder scattering mechanism 4 will be difficult to operate stably. In order to make the first positioning bolt 46 move in a predetermined direction when rotating, the track groove 351 is set as a waist-shaped structure with a vertical long axis, so that the fixed cylinder 42 and the sliding shaft 36 can slide in a restricted vertical direction when linked.

[0040] When the rotating shaft 35 rotates, the first positioning bolt 46 drives the sliding shaft 36 and the conical material distribution plate 41 to rotate synchronously. The powder distribution mechanism 4 can slide vertically along the track groove 351, causing the balls 45 to roll along the surface of the wave protrusions 34. This, in turn, causes the conical material distribution plate 41 to vibrate up and down during rotation, causing the powder falling onto the surface of the conical material distribution plate 41 to diffuse outwards under centrifugal force and vibration. If the fine powder formed from the multi-stage grinding of waste tire pyrolysis recycled carbon black lacks diffusion power, it easily accumulates in the lower area and affects the upward conveying. To ensure this... The fine powder is dispersed in the lower area and continuously conveyed to the outer gap. When the rotating shaft 35 rotates, the first positioning bolt 46 drives the sliding shaft 36 and the conical material distribution plate 41 to rotate synchronously. The powder distribution mechanism 4 slides vertically under the constraint of the track groove 351. The ball 45 rolls between the lower end face of the fixed rod 44 and the surface of the corrugated protrusion 34, thereby causing the conical material distribution plate 41 to vibrate up and down during the rotation. The carbon black powder that falls onto the surface of the conical material distribution plate 41 is thus diffused outward under the action of centrifugal force and vibration and enters the gap area between the liner 21 and the cylinder 12.

[0041] SeeFigures 6-9 The grinding roller cleaning mechanism 5 is movably positioned at the center of each grinding disc 24 and located between multiple annular grinding rollers 26. The grinding roller cleaning mechanism 5 includes a base 51 slidably mounted on the surface of a rotating shaft 35. Multiple track rods 52 are evenly and horizontally arranged on the upper surface of the base 51. Slider blocks 53 are slidably mounted on the surface of the track rods 52. The sliders 53 extend outward beyond the range of the base 51, and cleaning brushes 54 adapted to the annular grinding rollers 26 are provided at the ends of the sliders 53. Waste tire pyrolysis recycled carbon black easily adheres to the surface of the annular grinding rollers 26 during multi-stage grinding. If the adhered powder continues to accumulate, it will affect the subsequent raw materials and the annular grinding rollers 26 and annular grooves 22. To ensure effective grinding between the ring grinding rollers 26 and synchronized cleaning during operation, the grinding roller cleaning mechanism 5 is movably positioned at the center of each grinding disc 24 and located between multiple ring grinding rollers 26. The base 51 is slidably mounted on the surface of the rotating shaft 35 to form a mounting base. Multiple track rods 52 are evenly and horizontally arranged on the upper surface of the base 51 to provide outward guidance. Multiple sliders 53 are slidably mounted on the surface of the corresponding track rods 52 and extend outward beyond the range of the base 51. The cleaning brush 54 is located at the end of the slider 53 and is adapted to the ring grinding roller 26, so that the cleaning brush 54 can contact the surface of the ring grinding roller 26 after outward movement.

[0042] A sleeve 55 is provided at the center of the upper surface of the chassis 51. The sleeve 55 is slidably mounted on the rotating shaft 35. Two second fixed bolts 56 are symmetrically screwed through the surface of the sleeve 55. The second fixed bolts 56 pass through the upper track groove 351 and are adapted to the internal threaded hole 361. During the grinding process of waste tire pyrolysis recycled carbon black, the grinding roller cleaning mechanism 5 not only needs to rotate synchronously with the rotating shaft 35, but also needs to cooperate with the vibration structure below to generate up and down movement to improve the cleaning effect of the attached powder. In order to form a linkage sliding connection between the chassis 51, the rotating shaft 35, and the sliding shaft 36, the sleeve 55 is provided at the center of the upper surface of the chassis 51 and slidably mounted on the rotating shaft 35. Two second fixed bolts 56 are symmetrically screwed through the surface of the sleeve 55. The second fixed bolts 56 pass through the upper track groove 351 and are adapted to the internal threaded hole 361. Thus, the chassis 51 can maintain stable installation while having the condition to move up and down with the sliding shaft 36.

[0043] See Figures 6-7The track groove 351 and the internal threaded hole 361 are respectively set in two ways. The bottom one is used to fix the powder dispersing mechanism 4, and the upper ones correspond to the multiple grinding discs 24 to fix the multiple grinding roller cleaning mechanisms 5. The waste tire pyrolysis regenerated carbon black ultrafine grinding device is set with the powder dispersing mechanism 4 and multiple grinding roller cleaning mechanisms 5 on the same rotating shaft 35. If the connection positions of different levels are disordered, it will not be conducive to the stable distribution and synchronous operation of each structure. In order to make the powder dispersing mechanism 4 and the multiple grinding roller cleaning mechanisms 5 located at the corresponding installation level, the track groove 351 and the internal threaded hole 361 are respectively set in two arrangement forms. The bottom track groove 351 and the corresponding internal threaded hole 361 are used to fix the powder dispersing mechanism 4, and the upper multiple track grooves 351 and the corresponding internal threaded holes 361 correspond to the multiple grinding discs 24 to fix the multiple grinding roller cleaning mechanisms 5, so that the lower dispersing function and the upper multi-layer cleaning function are realized in layers on the same rotating shaft 35.

[0044] When the rotating shaft 35 rotates, it drives the chassis 51 to rotate, so that the slider 53 expands outward through centrifugal force, and then the cleaning brush 54 contacts the surface of the corresponding annular grinding roller 26. During the continuous grinding process of waste tire pyrolysis recycled carbon black, the cleaning brush 54 needs to be able to actively approach the surface of the annular grinding roller 26. If the cleaning brush 54 always remains in the retracted state, it will not be able to form an effective cleaning effect. In order to make the cleaning brush 54 automatically contact the annular grinding roller 26 during the operation of the device, the rotating shaft 35 drives the chassis 51 to rotate synchronously. Under the action of centrifugal force, multiple sliders 53 expand outward along multiple track rods 52. Multiple cleaning brushes 54 set at the ends of sliders 53 move outward accordingly and contact the surface of the corresponding annular grinding roller 26, thereby forming a close cleaning state.

[0045] The sliding shaft 36 vibrates up and down together with the conical material distribution plate 41, and drives the grinding roller cleaning mechanism 5 to vibrate up and down through the cooperation of the internal threaded hole 361 and the second fixed bolt 56, so as to clean the carbon black powder adhering to the surface of the annular grinding roller 26. After the carbon black from the pyrolysis of waste tires adheres to the surface of the annular grinding roller 26, it may be difficult to achieve a more thorough brushing effect by simply relying on rotational contact. In order to make the cleaning brush 54 further form an axial brushing action on the basis of circumferential contact, the sliding shaft 36 vibrates up and down together with the conical material distribution plate 41. The internal threaded hole 361 on the surface of the sliding shaft 36 drives the sleeve 55 and the base 51 to move up and down in linkage through the second fixed bolt 56. The entire grinding roller cleaning mechanism 5 thus vibrates up and down accordingly. Multiple cleaning brushes 54 clean up and down while contacting the surfaces of multiple annular grinding rollers 26, so that the carbon black powder adhering to the surface of the annular grinding roller 26 is continuously brushed away.

[0046] See Figures 1-3The exhaust pipe 15 is used to connect to the negative pressure pump. External air enters the cylinder 12 through the air inlet filter window 13 and flows upward through the gap between the liner 21 and the cylinder 12. With the cooperation of the screening and filtration structure 16, the powder after grinding and dispersing is discharged upward. After the waste tire pyrolysis recycled carbon black has completed multi-stage grinding and dispersing treatment, it needs to be discharged from the inside of the device in a timely manner. If the discharge path is not clear or the airflow organization is not continuous, it is easy to cause the light powder to be stuck inside the equipment. In order to ensure that the powder after grinding and dispersing can be continuously carried away in a predetermined direction, the exhaust pipe 15 is used to connect to the negative pressure pump. When the negative pressure pump is working, external air enters the cylinder 12 through multiple air inlet filter windows 13. The air that enters flows upward along the gap between the liner 21 and the cylinder 12. The screening and filtration structure 16 located at the top cooperates in screening and filtering the upward powder, so that the carbon black powder that meets the discharge conditions continues to move upward and is discharged through the exhaust pipe 15, thereby completing the powder output process.

[0047] The annular grinding roller 26 rotates on its own axis while revolving with the grinding disc 24, and forms a relative rotation with the cleaning brush 54 to improve the cleaning effect. After the carbon black from the pyrolysis of waste tires adheres to the surface of the annular grinding roller 26, if there is a lack of relative movement between the annular grinding roller 26 and the cleaning brush 54, the cleaning effect will be limited. In order to make the powder adhering to the surface of the annular grinding roller 26 more thoroughly removed during operation, the annular grinding roller 26 rotates on its own axis while revolving with the grinding disc 24. The cleaning brush 54 forms a relative rotation relationship with the annular grinding roller 26 while in contact with it. With the drive of the chassis 51, the expansion of the slider 53, and the overall up-and-down vibration of the grinding roller cleaning mechanism 5, the carbon black powder adhering to the surface of the annular grinding roller 26 is continuously cleaned, thereby further improving the cleaning effect and maintaining the continuity of subsequent multi-stage grinding.

[0048] The working principle of this invention is as follows: When in use, first install the device and connect the air outlet pipe 15 to the external negative pressure pump, and at the same time, make the motor on one side of the base 11 in a working state; the raw material is put into the cylinder 12 through the feed pipe 18 and enters the working space formed by the shell structure 1.

[0049] When the motor starts, the motor drives the transmission mechanism 3 to work. The rotating shaft 35 in the transmission mechanism 3 rotates under the support of the fixed seat 31 and the vertical cylinder 32. As the rotating shaft 35 rotates, the feed plate 27 set on the top of the rotating shaft 35 rotates synchronously. At this time, the raw material falling from the feed pipe 18 first falls onto the feed plate 27 and diffuses radially outward under the guidance of the guide groove 271 on the surface of the feed plate 27. Then it falls onto the corresponding annular grinding rollers 26 on the outer side of the multiple grinding discs 24.

[0050] Subsequently, as the rotating shaft 35 continues to rotate, multiple grinding discs 24 move together with the rotating shaft 35. The fixed shaft 25 on the surface of the grinding disc 24 drives the annular grinding roller 26 to move. Since the annular grinding roller 26 extends beyond the grinding disc 24 and cooperates with the annular groove 22 set in the inner wall of the liner 21, the carbon black raw material entering it is squeezed and ground between the annular grinding roller 26 and the annular groove 22, thus completing a single grinding. After the upper layer completes one grinding, the powder continues to fall to the corresponding position in the lower layer, and then continues to be ground under the cooperation of the lower grinding disc 24, the annular grinding roller 26 and the annular groove 22, thereby realizing multi-stage continuous grinding and improving the fineness effect of carbon black powder.

[0051] During the grinding process, the negative pressure pump draws air from the cylinder 12 through the air outlet pipe 15. External air enters the cylinder 12 through the air inlet filter windows 13 evenly distributed below the surface of the cylinder 12. Since the liner 21 is suspended and fixed to the inner wall of the cylinder 12 by the welded support block 23, and a gap is formed between the outer surface of the liner 21 and the inner wall of the cylinder 12, the airflow can flow upward along the gap. In this process, the convex ring 17 located at the lower part of the cylinder 12 plays a role in limiting and transitioning the movement path of the powder in the lower area, so that the ground powder can be further transported upward with the airflow.

[0052] When the ground powder falls to the position of the powder dispersing mechanism 4, the powder first falls onto the surface of the conical dispersing disk 41. Since the conical dispersing disk 41 is slidably mounted on the surface of the rotating shaft 35 through the fixed cylinder 42, and the first positioning bolt 46 on the surface of the fixed cylinder 42 passes through the lowest track groove 351 and cooperates with the internal threaded hole 361 on the sliding shaft 36, the rotating shaft 35 can drive the sliding shaft 36 and the conical dispersing disk 41 to rotate synchronously when it rotates. At the same time, the ball 45 on the lower end face of the fixed rod 44 rolls along the wave protrusion 34 on the upper surface of the fixed disk 33, causing the powder dispersing mechanism 4 to slide up and down along the long axis of the track groove 351 during rotation, thereby driving the conical dispersing disk 41 to vibrate up and down synchronously.

[0053] Next, the powder falling on the conical material tray 41 diffuses outward under the combined action of centrifugal force generated by the rotation of the conical material tray 41 and the up-and-down vibration, and is guided to the gap between the liner 21 and the cylinder 12. Since the diameter of the conical material tray 41 is the same as the outer diameter of the liner 21, the powder after multi-stage grinding can be effectively guided to the outer airflow channel, reducing the accumulation of powder in the lower area.

[0054] During the grinding and material distribution process described above, the grinding roller cleaning mechanism 5 operates synchronously. Specifically, the base 51, located at the center of each grinding disc 24, is slidably mounted on the surface of the rotating shaft 35 and is connected to the corresponding upper track groove 351 and internal threaded hole 361 via the sleeve 55 and the second fixing bolt 56. When the rotating shaft 35 rotates, the base 51 rotates accordingly, and the slider 53 on the track rod 52 expands outward along the track rod 52 under the action of centrifugal force, so that the cleaning brush 54 at the end of the slider 53 contacts the surface of the corresponding annular grinding roller 26. Since the sliding shaft 36 vibrates up and down together with the conical material distribution disc 41, the grinding roller cleaning mechanism 5 also vibrates up and down as a whole under the action of the internal threaded hole 361 and the second fixing bolt 56, so that the cleaning brush 54 forms an up and down cleaning action while contacting the surface of the annular grinding roller 26.

[0055] Subsequently, the annular grinding roller 26 rotates on its own axis while revolving with the grinding disc 24, and rotates relative to the cleaning brush 54, thereby continuously brushing away the carbon black powder adhering to the surface of the annular grinding roller 26, reducing the impact of powder adhesion on subsequent grinding efficiency and grinding continuity.

[0056] Finally, after multi-stage grinding, dispersing and cleaning, the carbon black powder flows upward through the gap between the liner 21 and the cylinder 12 with the air entering through the air inlet filter window 13 under negative pressure, and is further screened and filtered with the help of the screening and filtering structure 16 set at the bottom of the sealing plate 14; the powder that meets the discharge conditions continues to rise and is discharged through the air outlet pipe 15, thus completing a typical ultrafine grinding process of waste tire pyrolysis regenerated carbon black.

[0057] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention, unless otherwise specified or limited, shall be implemented according to conventional methods in the art.

Claims

1. An ultrafine grinding device for recycling carbon black from waste tire pyrolysis, characterized in that, It includes a housing structure (1), a grinding mechanism (2) disposed within the housing structure (1), a transmission mechanism (3) for driving the grinding mechanism (2) to perform grinding, a powder dispersing mechanism (4) disposed below the transmission mechanism (3), and a grinding roller cleaning mechanism (5) disposed inside the grinding mechanism (2). The shell structure (1) forms a working space for raw materials to enter, airflow to pass through, and powder to be output; The transmission mechanism (3) is connected to the grinding mechanism (2) to drive the raw material to perform multi-stage grinding; The powder dispersing mechanism (4) is used to disperse and discharge the ground carbon black powder. The grinding roller cleaning mechanism (5) is used to clean the grinding rollers in the grinding mechanism (2) to reduce the impact of powder adhesion on subsequent grinding.

2. The ultrafine grinding device for regenerating carbon black from waste tire pyrolysis according to claim 1, characterized in that, The shell structure (1) includes a base (11) and a cylinder (12) fixed to one side of the top of the base (11). The transmission mechanism (3) is provided on the surface of the base (11), and a motor for controlling the transmission mechanism (3) is provided on one side of the base (11). The top of the cylinder (12) is provided with a sealing plate (14), the top of the sealing plate (14) is connected with an air outlet pipe (15), and the bottom of the sealing plate (14) is provided with a screening and filtering structure (16). The cylinder (12) has an air inlet filter window (13) evenly distributed below the surface of the cylinder (12), and a feed pipe (18) is inclined on one side of the cylinder (12). A convex ring (17) is provided above the air inlet filter window (13) inside the lower part of the cylinder (12).

3. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 2, characterized in that, The transmission mechanism (3) includes a fixed seat (31) fixed to the bottom of the cylinder (12), a vertical cylinder (32) set at the center of the surface of the fixed seat (31), and a rotating shaft (35) rotatably mounted above the vertical cylinder (32). The grinding mechanism (2) includes a liner (21) fixed to the inner wall of the cylinder (12) and a plurality of grinding discs (24) spaced apart along the axial direction of the rotating shaft (35). The inner wall of the liner (21) is uniformly provided with annular grooves (22) corresponding to the plurality of grinding discs (24). The surface of the grinding discs (24) is uniformly provided with fixed shafts (25). The surface of the fixed shafts (25) is fitted with an annular grinding roller (26). The annular grinding roller (26) extends beyond the grinding discs (24) and cooperates with the annular grooves (22) to grind the carbon black powder. Welded support blocks (23) are uniformly arranged between the outer surface of the liner (21) and the inner wall of the cylinder (12) so that the liner (21) is suspended and fixed and forms a gap between it and the inner wall of the cylinder (12) for gas to pass through.

4. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 3, characterized in that, The top of the rotating shaft (35) is provided with a feeding plate (27), and the discharge end of the feeding pipe (18) is located above the center of the feeding plate (27). The surface of the feeding plate (27) is uniformly provided with guide grooves (271) corresponding to multiple annular grinding rollers (26) so that the raw material diffuses outward along the guide grooves (271) and falls to the corresponding annular grinding rollers (26) when the feeding plate (27) rotates. After a single grinding, the powder falls to the lower layer for further grinding, thus achieving multi-stage grinding.

5. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 3, characterized in that, The top of the vertical tube (32) is provided with a fixing plate (33), and the upper surface of the fixing plate (33) is provided with a wave protrusion (34). The powder dispersing mechanism (4) includes a conical dispersing disk (41) that is slidably installed below the surface of the rotating shaft (35). The conical dispersing disk (41) has a conical structure with a high center and low edge, and the diameter of the conical dispersing disk (41) is consistent with the outer diameter of the liner (21) so that the ground powder is dispersed into the gap between the liner (21) and the cylinder (12).

6. The ultrafine grinding device for regenerating carbon black from waste tire pyrolysis according to claim 5, characterized in that, The bottom center of the conical material tray (41) is provided with a fixed cylinder (42), which is slidably mounted on the surface of the rotating shaft (35). Both sides of the bottom of the fixed cylinder (42) are provided with extension plates (43), and the bottom of the extension plates (43) is provided with a fixed rod (44). The lower end face of the fixed rod (44) is embedded with a ball (45). The rotating shaft (35) has a track groove (351) evenly distributed on its surface. A sliding shaft (36) is slidably installed inside the rotating shaft (35). The sliding shaft (36) has an internal thread hole (361) evenly distributed on its surface corresponding to the track groove (351). The fixed cylinder (42) has a first positioning bolt (46) symmetrically screwed onto its surface. The two first positioning bolts (46) pass through the lowest track groove (351) and cooperate with the internal thread hole (361).

7. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 6, characterized in that, The track groove (351) is waist-shaped and its long axis is set vertically; When the rotating shaft (35) rotates, the sliding shaft (36) and the conical material tray (41) rotate synchronously through the first positioning bolt (46), and the powder dispersing mechanism (4) can slide vertically along the track groove (351) so that the ball (45) rolls along the surface of the wave protrusion (34), which in turn drives the conical material tray (41) to vibrate up and down when rotating, so that the powder falling onto the surface of the conical material tray (41) diffuses outward under the action of centrifugal force and vibration.

8. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 3, characterized in that, The grinding roller cleaning mechanism (5) is movably disposed at the center of each grinding disc (24) and located between multiple annular grinding rollers (26). The grinding roller cleaning mechanism (5) includes a chassis (51) slidably mounted on the surface of a rotating shaft (35). Multiple track rods (52) are evenly and horizontally arranged on the upper surface of the chassis (51). A slider (53) is slidably mounted on the surface of the track rods (52). The slider (53) extends outward beyond the range of the chassis (51). A cleaning brush (54) adapted to the annular grinding roller (26) is provided at the end of the slider (53). A sleeve (55) is provided at the center of the upper surface of the chassis (51). The sleeve (55) is slidably mounted on the rotating shaft (35). A second fixed bolt (56) is symmetrically screwed through the surface of the sleeve (55). The second fixed bolt (56) passes through the upper track groove (351) and is adapted to the internal thread hole (361).

9. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 8, characterized in that, The track groove (351) and the internal threaded hole (361) are provided in two types, the bottom one of which is used to fix the powder scattering mechanism (4), and the upper ones correspond to multiple grinding discs (24) respectively, so as to fix multiple grinding roller cleaning mechanisms (5); When the rotating shaft (35) rotates, it drives the chassis (51) to rotate, so that the slider (53) expands outward by centrifugal force, thereby making the cleaning brush (54) contact the surface of the corresponding annular grinding roller (26); The sliding shaft (36) vibrates up and down together with the conical material distribution plate (41), and drives the grinding roller cleaning mechanism (5) to vibrate up and down as a whole through the cooperation of the internal threaded hole (361) and the second fixed bolt (56) to clean the carbon black powder adhering to the surface of the annular grinding roller (26).

10. The ultrafine grinding device for recycling carbon black from waste tire pyrolysis according to claim 9, characterized in that, The air outlet pipe (15) is used to connect the negative pressure pump. External air enters the cylinder (12) through the air inlet filter window (13) and flows upward through the gap between the liner (21) and the cylinder (12). With the cooperation of the screening and filtering structure (16), the powder that has been ground and dispersed is discharged upward. The annular grinding roller (26) rotates on its own axis while revolving around the grinding disc (24), and rotates relative to the cleaning brush (54) to improve the cleaning effect.

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