Macromolecular SBS modified asphalt production grinding device

Abstract

The utility model relates to the technical field of SBS modified asphalt production, in particular to a macromolecule SBS modified asphalt production grinding device which comprises a chopping box, a grinding box is arranged below the bottom end of the outer wall of the chopping box, the chopping box and the grinding box are fixedly connected through a supporting rod, supporting legs are fixed to the two sides of the bottom end of the outer wall of the chopping box, and the supporting legs are fixedly connected with the chopping box. A crushing cutter is arranged at the bottom end of the crushing box, a crushing component for crushing SBS is arranged on the inner wall of the crushing box, and a grinding component for grinding SBS is arranged at the bottom end of the grinding box. According to the SBS crushing device, the crushing cutter is arranged, so that an SBS material can be firstly cut and crushed, the particle support of the SBS material is lowered, and the material blocking condition is reduced; and an arranged knocking ball is matched with a spring so that the discharging pipe can be knocked in the rotating process of the rotating shaft, vibration is generated in the discharging pipe, material blocking is avoided, the whole device is rigidly connected, and the situation that the device collapses is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of SBS modified asphalt production, in particular to a grinding device for producing polymer SBS modified asphalt. Background Technique

[0002] Polymer SBS modified asphalt is a material obtained by modifying asphalt by adding SBS (styrene-butadiene-styrene copolymer) polymer material. SBS is a thermoplastic elastomer and is widely used in asphalt modification due to its good physical and chemical properties.

[0003] When the existing SBS modified asphalt is produced, workers need to add powdery SBS into asphalt to make modified asphalt. And SBS needs to be ground into powder to improve its dispersibility in asphalt and ensure the formation of a uniform composite material. Based on this, a grinding device for producing polymer SBS modified asphalt is disclosed in Chinese Patent Publication No. CN216459303U. In this patented technology, a vibration motor can drive the storage bin to vibrate on the outer surface of the fixed frame, facilitating the discharging of the storage bin. At the same time, a rotating motor drives a rotating shaft and a spiral blade to rotate and cut on the upper surface of the storage bin, so that the discharge hopper will not be blocked during discharging. Secondly, the cutting blade inside the discharge hopper can assist the spiral blade to perform secondary cutting on the SBS material;

[0004] It can be seen from the specification and the specification drawings of the above patented technology that when the above patented technology is specifically implemented, in order to avoid material blockage, a spring is set to support the storage bin. However, the supporting strength of the spring will decrease with the increase of the service time, and a vibration motor is also arranged inside it, which will accelerate the strength loss of the spring, resulting in the situation that the storage bin may tilt and collapse during use. This not only easily causes damage to the device, but also may cause harm to the surrounding personnel in serious cases. Therefore, there are still certain deficiencies in the above patented technology when it is specifically implemented.

[0005] In summary, it is very necessary to invent a grinding device for producing polymer SBS modified asphalt. Content of the Utility Model

[0006] Therefore, the utility model provides a grinding device for producing polymer SBS modified asphalt to solve the problem that the supporting strength of the spring decreases with the increase of the service time, and a vibration motor is also arranged inside it, which will accelerate the strength loss of the spring, resulting in the situation that the storage bin may tilt and collapse during use.

[0007] To achieve the above object, the present utility model provides the following technical solution: a grinding device for producing polymer SBS modified asphalt, including a shredding box, a grinding box is arranged below the bottom end of the outer wall of the shredding box, the shredding box and the grinding box are fixedly connected by a support rod, support legs are fixedly arranged on both sides of the bottom end of the outer wall of the shredding box, a shredding component for shredding SBS is arranged on the inner wall of the shredding box, and a grinding component for grinding SBS is arranged at the bottom end of the grinding box.

[0008] Preferably, feeding pipes are communicated with both sides of the top end of the outer wall of the shredding box, the shredding component includes a reduction motor, the reduction motor is installed at the center of the bottom end of the outer wall of the shredding box, a rotating shaft is installed at the bottom output end of the reduction motor, and the bottom end of the rotating shaft passes through the inner walls of the shredding box and the grinding box and is rotatably connected with the bottom end of the inner wall of the grinding box.

[0009] Preferably, crushing cutters are fixedly arranged on the outer wall of the rotating shaft and inside the shredding box, and a plurality of the crushing cutters are uniformly arranged in an annular array manner, and fixed cutters are fixedly arranged on the upper and lower sides of each crushing cutter on the inner wall of the shredding box.

[0010] Preferably, spiral stirring blades are fixedly arranged on the outer wall of the rotating shaft and below the crushing cutters, the spiral stirring blades are arranged above the bottom end of the inner wall of the shredding box, and a feeding pipe is communicated with the bottom end of the inner wall of the shredding box.

[0011] Preferably, a plurality of the feeding pipes are uniformly arranged in an annular array manner, the bottom ends of the feeding pipes are communicated with the top end of the inner wall of the grinding box, and the feeding pipes are all arranged outside the rotating shaft.

[0012] Preferably, the grinding component includes an upper grinding roller and a lower grinding roller, the upper grinding roller is fixed on the outer wall of the rotating shaft and at the upper end of the inner wall of the grinding box, and the lower grinding roller is fixed on the outer wall of the rotating shaft and below the upper grinding roller.

[0013] Preferably, annular grinding plates are fixedly arranged at the positions corresponding to the upper grinding roller and the lower grinding roller on the inner wall of the grinding box, and grinding balls are fixedly arranged at the relative positions of the outer wall side ends of the upper grinding roller and the lower grinding roller and the annular grinding plates.

[0014] Preferably, fixing rings are fixedly arranged on the outer wall of the rotating shaft and between the feeding pipes, and vertical rods are fixedly arranged at the outer wall side ends of the fixing rings, and a plurality of the vertical rods are uniformly arranged in an annular array manner.

[0015] Preferably, springs are fixedly arranged on the outer wall of the side of the vertical rod away from the fixing ring, and knocking balls for knocking the feeding pipes are fixedly arranged at the ends of the springs away from the vertical rods, and the knocking balls are in contact with the opposite side of the outer wall of the feeding pipes.

[0016] The beneficial effects of the present utility model are as follows:

[0017] In the present utility model, the crushing cutter is provided to first cut and crush the SBS material, reduce its particle size, and reduce the occurrence of material jamming. The knocking ball and the spring are provided to knock the feeding pipe during the rotation of the rotating shaft, so that vibration is generated in the feeding pipe to avoid material jamming. Moreover, the whole device is rigidly connected to avoid the collapse of the device, which is convenient for personnel to use. Description of the Drawings

[0018] Figure 1 is the external structural schematic diagram of the present utility model in the front view direction;

[0019] Figure 2 is the partial sectional structural schematic diagram of the present utility model in the front view direction;

[0020] Figure 3 is the partial sectional structural schematic diagram of the fixing ring and the knocking ball of the present utility model in the top view direction;

[0021] Figure 4 is the three-dimensional structural schematic diagram of the lower grinding roller of the present utility model.

[0022] In the figure: 100, chopping box; 110, reduction motor; 111, rotating shaft; 120, crushing cutter; 121, fixed cutter; 130, spiral stirring blade; 200, grinding box; 210, fixing ring; 211, spring; 212, vertical rod; 220, knocking ball; 230, upper grinding roller; 231, annular grinding plate; 240, lower grinding roller; 300, feeding pipe. Detailed Embodiments

[0023] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0024] Referring to the attached Figures 1-4 , a polymer SBS modified asphalt production grinding device provided by the present utility model includes a chopping box 100. The chopping box 100 is provided to first perform preliminary cutting and crushing on the SBS material. A grinding box 200 is provided below the bottom end of the outer wall of the chopping box 100. The grinding box 200 is provided to grind the SBS material into powder. The chopping box 100 and the grinding box 200 are fixedly connected by a support rod. Both sides of the bottom end of the outer wall of the chopping box 100 are fixedly provided with support legs;

[0025] The inner wall of the shredding box 100 is provided with a shredding component for shredding SBS. Both sides of the top end of the outer wall of the shredding box 100 are connected with feed pipes. The shredding component includes a reduction motor 110, which is installed at the center of the bottom end of the outer wall of the shredding box 100. The bottom output end of the reduction motor 110 is installed with a rotating shaft 111. The bottom end of the rotating shaft 111 passes through the inner walls of the shredding box 100 and the grinding box 200 and is rotatably connected to the bottom end of the inner wall of the grinding box 200. Fixed crushing cutters 120 are fixed on the outer wall of the rotating shaft 111 and inside the shredding box 100. A plurality of crushing cutters 120 are evenly arranged in an annular array. Fixed cutters 121 are fixed on the inner wall of the shredding box 100 and on the upper and lower sides of each crushing cutter 120. After being powered on, the provided reduction motor 110 can drive the rotating shaft 111 to rotate. When the provided rotating shaft 111 rotates, it can drive the crushing cutters 120 to rotate. When the provided crushing cutters 120 rotate, they can cooperate with the fixed cutters 121 to initially break the SBS material. The provided crushing cutters 120 and fixed cutters 121 can be made of high alloy steel material to ensure their structural strength. Helical stirring blades 130 are fixed on the outer wall of the rotating shaft 111 and below the crushing cutters 120. The helical stirring blades 130 are arranged above the bottom end of the inner wall of the shredding box 100. The provided helical stirring blades 130 can rotate together with the rotating shaft 111. The provided helical stirring blades 130 can turn the SBS material at the bottom upward. Firstly, this can prevent the accumulation of SBS material at the bottom and facilitate the SBS material to fall from the feeding pipe 300. Secondly, it can cut the SBS material at the bottom and maintain the initial crushing effect. The bottom end of the inner wall of the shredding box 100 is connected with a feeding pipe 300. A plurality of feeding pipes 300 are evenly arranged in an annular array. The bottom ends of the feeding pipes 300 are all connected with the top end of the inner wall of the grinding box 200. The feeding pipes 300 are all arranged outside the rotating shaft 111. The provided feeding pipes 300 are used to transport the initially crushed SBS material into the grinding box 200 for grinding;

[0026] A grinding component for grinding SBS is provided at the bottom end of the grinding box 200. The grinding component includes an upper grinding roller 230 and a lower grinding roller 240. The upper grinding roller 230 is fixed to the outer wall of the rotating shaft 111 and is located at the upper end of the inner wall of the grinding box 200. The lower grinding roller 240 is fixed to the outer wall of the rotating shaft 111 and is located below the upper grinding roller 230. Annular grinding plates 231 are fixed at the corresponding positions of the inner wall of the grinding box 200 and the upper grinding roller 230 and the lower grinding roller 240. Grinding balls are fixed at the outer wall side ends of the upper grinding roller 230 and the lower grinding roller 240 and at the positions opposite to the annular grinding plates 231. Specifically, the SBS material falling from the material feeding pipe 300 will fall onto the upper grinding roller 230. The top end of the upper grinding roller 230 is arranged to incline outward. Therefore, the SBS material will slide outward along the top end of the outer wall of the upper grinding roller 230 and fall between the upper grinding roller 230 and the annular grinding plate 231. When the upper grinding roller 230 rotates, it can grind the SBS material into powder through the grinding balls between it and the annular grinding plate 231. The ground SBS material will then fall onto the lower grinding roller 240 and be ground again by the lower grinding roller 240 and the annular grinding plate 231. The distance between the upper grinding roller 230 and the annular grinding plate 231 is greater than the distance between the lower grinding roller 240 and the annular grinding plate 231, making the secondary grinding effect better. A discharge port is provided at the bottom edge of the outer wall of the grinding box 200. An annular cylinder is fixed to the inner wall of the grinding box 200 and at the inner wall of the discharge port. The annular cylinder is provided to prevent the ground SBS material from accumulating at the center of the bottom end of the inner wall of the grinding box 200, enabling it to be discharged through the discharge port;

[0027] A fixing ring 210 is fixed on the outer wall of the rotating shaft 111 and between the blanking pipes 300. Vertical rods 212 are fixed on the outer side ends of the outer walls of the fixing rings 210. A plurality of vertical rods 212 are uniformly arranged in an annular array. Spring 211 is fixed on the outer wall of one side of the vertical rod 212 away from the fixing ring 210. The distance between the vertical rod 212 and the spring 211 is less than the distance between the fixing ring 210 and the side wall of the blanking pipe 300. One end of the spring 211 away from the vertical rod 212 is fixed with a knocking ball 220 for knocking the blanking pipe 300. The knocking ball 220 abuts against the opposite side of the outer wall of the blanking pipe 300. Specifically, when the rotating shaft 111 rotates, it can drive the fixing ring 210 to rotate. When the fixing ring 210 rotates, it will drive the knocking ball 220 to rotate through the spring 211 and the vertical rod 212. Since the knocking ball 220 abuts against the outer wall of the blanking pipe 300, when the fixing ring 210 rotates, the knocking ball 220 will turn outwards. After the knocking ball 220 is separated from the blanking pipe 300, the set spring 211 will keep the knocking ball 220 vertical and then knock the outer wall of the blanking pipe 300, causing the blanking pipe 300 to vibrate and preventing the blanking pipe 300 from jamming. The material of the set knocking ball 220 can be selected as plastic material.

[0028] The using process of the utility model is as follows: First, the person can add the SBS material to be ground into the chopping box 100 through the feed pipe. During the adding process, the set reduction motor 110 can drive the rotating shaft 111 to rotate after being powered on, so that the rotating shaft 111 can drive the crushing cutter 120 to rotate. When the crushing cutter 120 rotates, it can cooperate with the fixed cutter 121 to cut and break the SBS material. The cut and broken SBS material will fall into the grinding box 200 through the blanking pipe 300. The set rotating shaft 111 will simultaneously drive the upper grinding roller 230 and the lower grinding roller 240 to rotate together. When the upper grinding roller 230 rotates, it can grind the SBS material into powder through the grinding balls between the upper grinding roller 230 and the annular grinding plate 231. The ground SBS material will then fall onto the lower grinding roller 240 and be ground for the second time by the lower grinding roller 240 and the annular grinding plate 231. The ground SBS powder will be discharged from the discharge port.

[0029] During the grinding process, the rotating shaft 111 can drive the fixed ring 210 to rotate when rotating. When the fixed ring 210 rotates, it will drive the knocking ball 220 to rotate through the spring 211 and the vertical rod 212. Since the knocking ball 220 abuts against the outer wall of the blanking pipe 300, when the fixed ring 210 rotates, the knocking ball 220 will turn outward. After the knocking ball 220 is separated from the blanking pipe 300, the set spring 211 will keep the knocking ball 220 vertical and then knock on the outer wall of the blanking pipe 300, causing the blanking pipe 300 to vibrate and reducing the occurrence of material jamming in the blanking pipe 300.

[0030] The above are only the preferred embodiments of the present invention. Any person skilled in the art may modify the present invention using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention falls within the scope of protection required by the present invention.

Claims

1. A grinding device for producing polymer SBS modified asphalt, comprising a chopping box (100), a grinding box (200) is arranged below the bottom end of the outer wall of the chopping box (100), the chopping box (100) and the grinding box (200) are fixedly connected by support rods, and support legs are fixed on both sides of the bottom end of the outer wall of the chopping box (100), characterized in that: The inner wall of the shredding box (100) is provided with a shredding component for shredding SBS, and the bottom end of the grinding box (200) is provided with a grinding component for grinding SBS.

2. The grinding device for producing polymer SBS modified asphalt according to claim 1, wherein: Both sides of the top end of the outer wall of the shredding box (100) are communicated with feed pipes. The shredding component includes a reduction motor (110). The reduction motor (110) is installed at the center of the bottom end of the outer wall of the shredding box (100). The bottom output end of the reduction motor (110) is installed with a rotating shaft (111). The bottom end of the rotating shaft (111) passes through the inner walls of the shredding box (100) and the grinding box (200) and is rotatably connected to the bottom end of the inner wall of the grinding box (200).

3. A grinding device for producing polymer SBS modified asphalt according to claim 2, characterized in that: Crushing cutters (120) are fixed on the outer wall of the rotating shaft (111) and inside the shredding box (100). The plurality of crushing cutters (120) are uniformly arranged in an annular array. Fixed cutters (121) are fixed on the inner wall of the shredding box (100) above and below each crushing cutter (120).

4. A grinding device for producing polymer SBS modified asphalt according to claim 3, characterized in that: Spiral stirring blades (130) are fixed on the outer wall of the rotating shaft (111) and below the crushing cutters (120). The spiral stirring blades (130) are arranged above the bottom end of the inner wall of the shredding box (100). A feed pipe (300) is communicated with the bottom end of the inner wall of the shredding box (100).

5. A grinding device for producing polymer SBS modified asphalt according to claim 4, characterized in that: The plurality of feed pipes (300) are uniformly arranged in an annular array. The bottom ends of the feed pipes (300) are all communicated with the top end of the inner wall of the grinding box (200). The feed pipes (300) are all arranged outside the rotating shaft (111).

6. The grinding device for producing polymer SBS modified asphalt according to claim 2, wherein: The grinding component includes an upper grinding roller (230) and a lower grinding roller (240). The upper grinding roller (230) is fixed on the outer wall of the rotating shaft (111) and at the upper end of the inner wall of the grinding box (200). The lower grinding roller (240) is fixed on the outer wall of the rotating shaft (111) and below the upper grinding roller (230).

7. The grinding device for producing polymer SBS modified asphalt according to claim 6, characterized in that: Annular grinding plates (231) are fixed at the corresponding positions of the inner wall of the grinding box (200) and the upper grinding roller (230) and the lower grinding roller (240). Grinding balls are fixed at the relative positions of the outer wall side ends of the upper grinding roller (230) and the lower grinding roller (240) and the annular grinding plates (231).

8. A grinding device for producing polymer SBS modified asphalt according to claim 4, characterized in that: Fixed rings (210) are fixed on the outer wall of the rotating shaft (111) and between the feed pipes (300). Vertical rods (212) are fixed at the outer wall side ends of the fixed rings (210). The plurality of vertical rods (212) are uniformly arranged in an annular array.

9. A grinding device for producing polymer SBS modified asphalt according to claim 8, characterized in that: Springs (211) are fixed on the outer wall of one side of the vertical rods (212) away from the fixed rings (210). The ends of the springs (211) away from the vertical rods (212) are all fixed with knocking balls (220) for knocking the feed pipes (300). The knocking balls (220) are abutted against the opposite side of the outer wall of the feed pipes (300).

Images