Rubber powder composite modified asphalt mixing device

Abstract

The utility model relates to the technical field of mixing devices, and discloses a rubber powder composite modified asphalt mixing device which comprises a mixing machine body and further comprises a guide cylinder and a crushing mechanism, a discharge port is fixedly connected to the bottom of the mixing machine body, a feed port is fixedly connected to the top of the mixing machine body, and the guide cylinder is fixedly connected with the crushing mechanism. A crushing mechanism for crushing materials is arranged in the mixer body, a guide cylinder is fixedly connected to the interior of the mixer body, a rotating disc is rotatably connected to the interior of the mixer body, a second rotating shaft is fixedly connected to the bottom of the rotating disc, and spiral blades are fixedly connected to the exterior of the second rotating shaft; and the spiral blade is matched with the guide cylinder to enable the materials to turn over. The spiral blade rotates in the matched guide cylinder, so that materials, close to the bottom, in the mixer body can be extracted to the through groove in the top of the guide cylinder and are gushed out through the through groove, and the materials at the bottom can continuously and upwards turn over in the reciprocating manner, so that the materials with different densities can be fully mixed, and the mixing efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a rubber powder composite modified asphalt mixing equipment. Background Technology

[0002] Rubber powder composite modified asphalt is made by adding external admixtures such as rubber powder to asphalt to improve the performance of asphalt mixtures. The mixing plant is a device used to mix waste rubber powder with asphalt and perform pretreatment, aiming to improve the performance and quality of asphalt pavement.

[0003] According to the patent application published on the Internet (authorization announcement number: CN 215329175U), "This utility model discloses a rubber powder composite modified asphalt mixing device, including: an operating platform with a control panel; a power mechanism including a drive motor and a gear transmission assembly, the gear transmission assembly including a drive gear, a driven gear, a first drive gear, and a second drive gear; a pulverizer with a waste rubber inlet and a rubber powder outlet, the pulverizer having a pulverizing shaft and blades inside; a preheater with an asphalt inlet and an asphalt outlet, the preheater having a heating jacket on its inner wall, the heating jacket having an electric heating tube inside; and a mixer connecting the rubber powder outlet of the pulverizer and the asphalt outlet of the preheater, the mixer having a mixed material outlet, the mixer having a mixing shaft and blades inside. This utility model enables waste rubber and asphalt to be pretreated separately before mixing, shortening the mixing time, ensuring the basic properties of the asphalt mixture, and thus ensuring the quality of the asphalt pavement."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] During use, this utility model has the problem that the device mixes the materials inside the mixer by rotating blades. However, the mixer is a vertical structure and the rotating blades have a single mixing function. When the materials have different densities, the denser materials will remain at the bottom of the mixer, making it impossible to mix with the less dense materials at the top. This results in uneven mixing and poor asphalt mixing quality. Therefore, it is necessary to improve the rubber powder composite modified asphalt mixing device to solve the above problems. Utility Model Content

[0006] To overcome the problem that the vertical structure of the mixer results in insufficient mixing when mixing materials of different densities.

[0007] The technical solution of this utility model is as follows: a rubber powder composite modified asphalt mixing device, including a mixing machine body, a guide cylinder and a crushing mechanism. A discharge port is fixedly connected to the bottom of the mixing machine body, and a feed port is fixedly connected to the top of the mixing machine body. A crushing mechanism for crushing materials is provided inside the mixing machine body. A guide cylinder is fixedly connected inside the mixing machine body. A rotating disk is rotatably connected inside the mixing machine body. A second rotating shaft is fixedly connected to the bottom of the rotating disk. Spiral blades are fixedly connected to the outside of the second rotating shaft. The material is tumbled by the cooperation of the spiral blades and the guide cylinder.

[0008] Preferably, the inside of the guide tube is hollow, and the spiral blades are fitted inside the guide tube.

[0009] Preferably, a first motor is fixedly connected to the top of the mixer body, a rotating disc is fixedly connected to the output end of the first motor, a connecting frame is fixedly connected to the outside of the rotating disc, a first rotating shaft is rotatably connected inside the connecting frame, a mixing plate is fixedly connected to the outside of the first rotating shaft, an external gear is fixedly connected to the outside of the first rotating shaft, an internal gear meshes with the outside of the external gear, and the internal gear is fixedly connected inside the mixer body.

[0010] Preferably, there are two external gears, and the two external gears are symmetrically meshed inside the internal gear.

[0011] Preferably, the crushing mechanism includes a conveying pipe, which is fixedly connected inside the mixer body. A solenoid valve is installed inside the conveying pipe. A crushing cylinder is fixedly connected to the top of the conveying pipe. A sealing cover is installed outside the crushing cylinder. A hollow support is fixedly connected inside the crushing cylinder. A third rotating shaft is rotatably connected inside the hollow support. Crushing blades are fixedly connected to the outside of the third rotating shaft. A first pulley is fixedly connected to the outside of the third rotating shaft. A second motor is fixedly connected to the outside of the crushing cylinder. A second pulley is fixedly connected to the output end of the second motor. A synchronous belt drives the second pulley and the first pulley.

[0012] Preferably, the hollow support and the crushing cylinder have through slots at corresponding positions of the synchronous belt, and the synchronous belt passes through the through slots.

[0013] Preferably, there are two crushing blades, each disposed outside the third rotating shaft.

[0014] The beneficial effects of this utility model are as follows: by rotating the spiral blades inside the suitable guide cylinder, the material near the bottom inside the mixer body can be drawn to the top channel of the guide cylinder and flow out through the channel. This process can be repeated to make the material at the bottom continuously rise, so that materials of different densities can be mixed thoroughly, effectively improving the mixing efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the mixing machine body of this utility model;

[0017] Figure 3 This is a cross-sectional view of the guide tube structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the crushing mechanism of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the crushing mechanism of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Mixer body; 21. Guide cylinder; 22. First motor; 23. Rotating disc; 24. Connecting frame; 25. First rotating shaft; 26. Mixing plate; 27. External gear; 28. Internal gear; 29. ​​Second rotating shaft; 210. Spiral blade; 31. Conveying pipe; 32. Solenoid valve; 33. Crushing cylinder; 34. Sealing cover; 35. Hollow support; 36. Third rotating shaft; 37. Crushing blade; 38. First pulley; 39. Second motor; 310. Second pulley; 311. Synchronous belt; 4. Discharge port; 5. Feed port. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 - Figure 5This utility model provides an embodiment of a rubber powder composite modified asphalt mixing device, including a mixing machine body 1, a guide cylinder 21, and a crushing mechanism. A discharge port 4 is fixedly connected to the bottom of the mixing machine body 1, and a feed port 5 is fixedly connected to the top of the mixing machine body 1. A crushing mechanism for crushing materials is installed inside the mixing machine body 1. The guide cylinder 21 is fixedly connected inside the mixing machine body 1, and a rotating disk 23 is rotatably connected inside the mixing machine body 1. A second rotating shaft 29 is fixedly connected to the bottom of the rotating disk 23, and a spiral blade 210 is fixedly connected to the outside of the second rotating shaft 29. The spiral blade 210, in cooperation with the guide cylinder 21, causes the material to tumble and rotate. The disc 23 drives the spiral blades 210 via the second rotating shaft 29, so that the spiral blades 210 cooperate with the guide cylinder 21 to draw the material at the bottom of the mixer body 1 upward and then to the through groove of the guide cylinder 21. The material flows out through the through groove, and this process is repeated to make the material at the bottom continuously churn upward, thereby mixing the material inside the mixer body 1. The crushing mechanism can reduce the volume of large pieces of material and allow them to enter the interior of the mixer body 1. The interior of the guide cylinder 21 is hollow, and the spiral blades 210 are adapted to the interior of the guide cylinder 21. The spiral blades 210 rotate inside the adapted guide cylinder 21, thereby drawing out the material at the bottom of the mixer body 1, thus causing the material to churn.

[0023] Please see Figure 1 - Figure 3 In this embodiment, a first motor 22 is fixedly connected to the top of the mixer body 1, and a rotating disk 23 is fixedly connected to the output end of the first motor 22. A connecting frame 24 is fixedly connected to the outside of the rotating disk 23, and a first rotating shaft 25 is rotatably connected inside the connecting frame 24. A stirring plate 26 is fixedly connected to the outside of the first rotating shaft 25, and an external gear 27 is fixedly connected to the outside of the first rotating shaft 25. An internal gear 28 meshes with the outside of the external gear 27, and the internal gear 28 is fixedly connected inside the mixer body 1. The material is tumbled by the spiral blades 210 and stirred by the stirring plate 26, so that the mixing is more uniform and thorough. There are two external gears 27, and the two external gears 27 are symmetrically meshed inside the internal gear 28. When the two external gears 27 move, they can rotate by meshing with the internal gear 28, thereby achieving the effect of synchronous rotation of the stirring plate 26 and the rotating disk 23.

[0024] Please see Figure 1 , Figure 4 - Figure 5In this embodiment, the crushing mechanism includes a conveying pipe 31, which is fixedly connected inside the mixer body 1. A solenoid valve 32 is installed inside the conveying pipe 31. A crushing cylinder 33 is fixedly connected to the top of the conveying pipe 31. A sealing cover 34 is installed outside the crushing cylinder 33. A hollow support 35 is fixedly connected inside the crushing cylinder 33. A third rotating shaft 36 is rotatably connected inside the hollow support 35. Crushing blades 37 are fixedly connected to the outside of the third rotating shaft 36. A first pulley 38 is fixedly connected to the outside of the third rotating shaft 36. A second motor 39 is fixedly connected to the outside of the crushing cylinder 33. A second pulley 310 is fixedly connected to the output end of the second motor 39. The second pulley 310 and the first pulley... A synchronous belt 311 is connected between 38 for transmission. The material is crushed by the crushing blades 37, thereby reducing the volume of the material and making it easier to mix. The hollow support 35 and the crushing cylinder 33 have through slots at corresponding positions of the synchronous belt 311, and the synchronous belt 311 passes through the through slots. The through slots facilitate the second motor 39 to drive the third rotating shaft 36 to rotate, without the second motor 39 being inside the crushing cylinder 33, ensuring the heat dissipation of the second motor 39 and facilitating the maintenance of the second motor 39. There are two crushing blades 37, which are respectively set outside the third rotating shaft 36. By increasing the contact area with the material through the two crushing blades 37, the crushing effect can be improved and the crushing operation can be carried out quickly.

[0025] During operation, materials are added into the mixer body 1 through the feed inlet 5. Large pieces of material can be fed into the crushing drum 33 by opening the sealing cover 34, and then the sealing cover 34 is closed again. The second motor 39 drives the second pulley 310, which in turn drives the synchronous belt 311. The synchronous belt 311 drives the first pulley 38, which in turn drives the third rotating shaft 36. The third rotating shaft 36 drives the crushing blades 37, which crush the material. After crushing, the solenoid valve 32 is opened, and the material is discharged into the mixer body 1 through the conveying pipe 31. The first motor 2... 2 drives the rotating disk 23, which in turn drives the second rotating shaft 29, which in turn drives the spiral blades 210. The spiral blades 210 rotate in conjunction with the guide cylinder 21 to cause the material to tumble. While the rotating disk 23 rotates, it drives the connecting frame 24, which in turn drives the first rotating shaft 25. The first rotating shaft 25 rotates through the meshing of the external gear 27 and the internal gear 28, thereby driving the first rotating shaft 25 to rotate. The first rotating shaft 25 drives the mixing plate 26, which rotates around the center of the mixer body 1. This allows the mixing plate 26 to rotate, thus fully mixing the material. Once the mixing is complete, the material is discharged through the discharge port 4.

[0026] Through the above steps, the material near the bottom inside the mixer body 1 is drawn to the top channel of the guide cylinder 21 by the rotation of the spiral blade 210 inside the suitable guide cylinder 21. The material then flows out through the channel. This process is repeated to make the material at the bottom continuously rise, thus solving the problem of insufficient mixing when mixing materials of different densities in a vertical mixer.

Claims

1. A rubber powder composite modified asphalt mixing device, comprising a mixer body (1), characterized in that: The application further comprises a guide cylinder (21) and a crushing mechanism, the bottom of the mixer body (1) is fixedly connected with a discharge port (4), the top of the mixer body (1) is fixedly connected with a feeding port (5), the inside of the mixer body (1) is provided with a crushing mechanism for crushing materials, the inside of the mixer body (1) is fixedly connected with a guide cylinder (21), the inside of the mixer body (1) is rotatably connected with a rotating disc (23), the bottom of the rotating disc (23) is fixedly connected with a second rotating shaft (29), the outside of the second rotating shaft (29) is fixedly connected with a spiral blade (210), and the spiral blade (210) is matched with the guide cylinder (21) to make the materials surge.

2. The crumb rubber compound modified asphalt mixing plant of claim 1, wherein: The inside of the guide cylinder (21) is hollow, and the spiral blade (210) is fitted in the inside of the guide cylinder (21).

3. The crumb rubber compound modified asphalt mixing apparatus of claim 1, wherein: The top of the mixer body (1) is fixedly connected with a first motor (22), the rotating disc (23) is fixedly connected to the output end of the first motor (22), the outside of the rotating disc (23) is fixedly connected with a connecting frame (24), the inside of the connecting frame (24) is rotatably connected with a first rotating shaft (25), the outside of the first rotating shaft (25) is fixedly connected with a stirring plate (26), the outside of the first rotating shaft (25) is fixedly connected with an external gear (27), the outside of the external gear (27) is engaged with an internal gear (28), and the internal gear (28) is fixedly connected to the inside of the mixer body (1).

4. The crumb rubber compound modified asphalt mixing apparatus of claim 3, wherein: The external gear (27) is provided with two, and the two external gears (27) are symmetrically engaged in the inside of the internal gear (28).

5. The crumb rubber compound modified asphalt mixing apparatus of claim 1, wherein: The crushing mechanism comprises a conveying pipeline (31), the conveying pipeline (31) is fixedly connected to the inside of the mixer body (1), the inside of the conveying pipeline (31) is provided with an electromagnetic valve (32), the top of the conveying pipeline (31) is fixedly connected with a crushing cylinder (33), the outside of the crushing cylinder (33) is provided with a sealing cover (34), the inside of the crushing cylinder (33) is fixedly connected with a hollow support (35), the inside of the hollow support (35) is rotatably connected with a third rotating shaft (36), the outside of the third rotating shaft (36) is fixedly connected with a crushing blade (37), the outside of the third rotating shaft (36) is fixedly connected with a first pulley (38), the outside of the crushing cylinder (33) is fixedly connected with a second motor (39), the output end of the second motor (39) is fixedly connected with a second pulley (310), and the synchronous belt (311) is transmissionally connected between the second pulley (310) and the first pulley (38).

6. The crumb rubber compound modified asphalt mixing apparatus of claim 5, wherein: The hollow support (35) and the crushing cylinder (33) are provided with a through groove at the corresponding positions of the synchronous belt (311), and the synchronous belt (311) passes through the through groove.

7. The crumb rubber compound modified asphalt mixing apparatus of claim 5, wherein: The crushing blade (37) is provided with two, and the two crushing blades (37) are respectively arranged on the outside of the third rotating shaft (36).

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