Emulsified asphalt stirring and mixing equipment

Abstract

The invention provides emulsified asphalt stirring and mixing equipment which comprises a tank body, a stirring shaft driven by a driving mechanism to rotate is arranged in the tank body, a plurality of groups of stirring rods are arranged at the bottom of the stirring shaft, a liftable driving shaft is further arranged on the stirring shaft, and a filling assembly is arranged on the tank body and extends into the plurality of groups of stirring rods. The stirring rod is further provided with a shielding mechanism for shielding the output end of the filling assembly so that lifting of the driving shaft can be converted into shielding or unshielding of the filling assembly, and the driving shaft and the filling assembly are connected through a liquid supply mechanism so that rotation of the stirring shaft can be converted into power for supplying liquid to the filling assembly after the driving shaft descends. According to the device, an emulsifier and an additive can be directly conveyed into an asphalt material and are prevented from being accumulated on the surface, the mixing path is shortened from the source, the invalid stirring time is shortened, non-uniform local concentration is avoided, the stability of emulsified asphalt is improved, and the production efficiency and the product quality are remarkably improved.

Description

Technical Field

[0001] This invention specifically relates to an emulsified asphalt mixing equipment. Background Technology

[0002] Emulsified asphalt, as a core material for road construction, is widely used in highway paving and maintenance projects due to its advantages such as normal-temperature construction and strong adhesion. During its preparation, the precise addition and thorough mixing of emulsifiers and admixtures directly determine the stability, demulsification rate, and other key properties of the asphalt emulsion, which are crucial to the quality of road engineering projects.

[0003] Currently, most mainstream emulsified asphalt mixing equipment has design flaws in the additive addition process. Most of these devices use a top-open pouring method, directly pouring emulsifiers and admixtures onto the asphalt surface inside the tank.

[0004] However, due to the high viscosity and poor fluidity of asphalt itself, additives tend to form a floating layer on the surface, making it difficult for them to quickly penetrate into the material. To achieve uniform mixing, the mixing time needs to be extended, leading to a significant reduction in production efficiency, especially in large-scale engineering projects, which can easily cause delays. Therefore, an emulsified asphalt mixing equipment is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes an emulsified asphalt mixing equipment to solve the technical problem mentioned in the background art: when adding admixtures and emulsifiers during the mixing of emulsified asphalt, most existing mixing equipment adds them directly to the asphalt surface from the top of the container by pouring, which results in a significant amount of time still being spent mixing the emulsifier after addition, and easily leads to insufficient mixing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an emulsified asphalt mixing and blending device, comprising: Tank body; A stirring shaft is rotatably mounted inside the tank, driven by a driving mechanism. Multiple stirring rods are provided at the bottom of the stirring shaft, and a liftable driving shaft is also provided on the stirring shaft. A dispensing assembly is mounted on the tank body and extends into multiple sets of stirring rods. Each stirring rod is also equipped with a blocking mechanism to block the output end of the dispensing assembly, thereby converting the lifting and lowering of the drive shaft into blocking or releasing the blocking of the dispensing assembly. A liquid supply mechanism, connected to the drive shaft and the dispensing assembly, converts the rotation of the stirring shaft into power to supply liquid to the dispensing assembly after the drive shaft descends.

[0007] In a preferred embodiment, the drive mechanism includes: A drive motor is fixedly mounted on the tank body, and its output shaft is equipped with a first spur gear; and The second spur gear is mounted on the stirring shaft and meshes with the first spur gear.

[0008] In a preferred embodiment, the filling assembly includes a filling tube that slides through the drive shaft, the end of the filling tube being provided with multiple sets of branch tubes, and the stirring rod having multiple sets of filling grooves, the branch tubes communicating with the sidewalls of the filling grooves.

[0009] In a preferred embodiment, the blocking mechanism includes: A baffle is slidably disposed inside the stirring rod, and multiple sets of shielding blocks are provided on its side. The shielding blocks are slidably disposed inside the filling groove and can shield the end of the branch pipe. A slanted frame is disposed at the end of the drive shaft, and the end of the slanted frame is provided with a vertical extension frame; and A guide post is provided at the end of the stop bar and is slidably engaged within the inclined frame.

[0010] In a preferred embodiment, the liquid supply mechanism includes: A filling cylinder is fixedly mounted on the tank body; A drive disc is rotatably mounted on the tank body and is connected to the filling cylinder and the filling pipe via a pump assembly; A handle, slidably mounted horizontally on the tank body, is connected to the drive shaft via a control component to convert the sliding of the handle into driving the drive shaft to rise and fall; and A clutch assembly, connected to the handle and the drive disc, converts rotation of the stirring shaft into rotation of the drive disc after the handle slides.

[0011] In a preferred embodiment, the pump assembly includes: A piston cylinder is mounted on the tank body and connected to a first pipe and a second pipe. The first pipe is equipped with a first check valve and is connected to the filling cylinder. The second pipe is equipped with a second check valve and is rotatably connected to the connecting seat at the top of the filling pipe. A piston plate, which can be slidably disposed within the piston cylinder; and The connecting rod is hinged at one end to the piston plate and eccentrically hinged at the other end to the drive disc.

[0012] In a preferred embodiment, the control component includes: A lifting frame, which is liftable and mounted on the tank body, and has an inclined groove, wherein the end of the drive shaft is rotatably mounted within the lifting frame; and The drive column is mounted on the handle and is slidably engaged in the inclined groove.

[0013] In a preferred embodiment, both ends of the inclined groove are connected to a flat groove, and the drive column can be engaged in the flat groove.

[0014] In a preferred embodiment, an elastic element is provided between the lifting frame and the tank.

[0015] In a preferred embodiment, the clutch assembly includes: A sliding bracket is mounted on the handle and can slide horizontally on the tank body; A first bevel gear is mounted on the stirring shaft; The second bevel gear is rotatably mounted on the tank body and meshes with the first bevel gear. A linkage rod is slidably mounted on the second bevel gear along its axis. The linkage rod is rotatably mounted on the sliding frame. The first gear disc is disposed at the end of the linkage rod; and The second toothed disc is arranged opposite to the first toothed disc and is coaxially connected to the drive disc.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This device extends the filling component into the mixing rod, changing the traditional top-filling mode. It allows emulsifiers and additives to be directly delivered into the asphalt material, avoiding surface accumulation and shortening the mixing path from the source. Through a shielding mechanism linked to the drive shaft, the opening and closing of the filling component's output end is controlled by raising and lowering the drive shaft. Simultaneously, it ensures that the output end of the filling component is immediately shielded after liquid supply stops, preventing asphalt from entering and solidifying inside the filling component, thus preventing blockage. This achieves synchronized start and stop of additive addition and mixing, requiring no additional operation and reducing ineffective mixing time. Furthermore, the liquid supply mechanism is powered by the rotation of the mixing shaft, eliminating the need for additional drive components. This simplifies the structure and ensures that the additive supply matches the mixing rhythm, allowing the additive to be evenly dispersed into the material as the mixing rod rotates. Simultaneously, the mixing shaft driving the mixing rod and the precise liquid supply from the filling component work together to allow the additive to quickly diffuse within the material, avoiding uneven local concentrations and improving the stability of the emulsified asphalt. This is particularly suitable for high-viscosity asphalt mixing scenarios, significantly improving production efficiency and product quality. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This invention provides a three-dimensional structural schematic diagram of an emulsified asphalt mixing equipment; Figure 2 This is a schematic diagram of the internal structure of an emulsified asphalt mixing device according to the present invention; Figure 3 This is a schematic diagram of the installation structure of the top part of the tank in an emulsified asphalt mixing equipment according to the present invention; Figure 4 This is a schematic diagram of the structure of the stirring rod in an emulsified asphalt mixing device according to the present invention; Figure 5 This is a schematic diagram of the internal structure of the stirring rod in an emulsified asphalt mixing device according to the present invention; Figure 6 This is a schematic diagram of the filling pipe in an emulsified asphalt mixing device according to the present invention; Figure label: 1. Tank body; 2. Drive motor; 3. First spur gear; 4. Stirring shaft; 5. Second spur gear; 6. First bevel gear; 7. Stirring rod; 8. Filling groove; 9. Drive shaft; 10. Inclined frame; 11. Extension frame; 12. Stop bar; 13. Guide column; 14. Blocking block; 15. Filling pipe; 16. Connecting seat; 17. Branch pipe; 18. Second bevel gear; 19. Linkage rod; 20. First gear plate; 21. Lifting frame; 22. Elastic element; 23. Inclined groove; 24. Flat groove; 25. Drive column; 26. Handle; 27. Sliding frame; 28. Drive disc; 29. ​​Second gear plate; 30. Connecting rod; 31. Piston plate; 32. Piston cylinder; 33. Filling cylinder; 34. First pipe; 35. First check valve; 36. Second pipe; 37. Second check valve. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0020] Example: like Figure 1 , 2As shown, this invention provides an emulsified asphalt mixing device, including a tank 1. A stirring shaft 4 is driven to rotate within the tank 1 by a drive mechanism. Multiple sets of stirring rods 7 are arranged at the bottom of the stirring shaft 4. The drive mechanism includes a drive motor 2 fixedly mounted on the tank 1. A first spur gear 3 is mounted on the output shaft of the drive motor 2, and a second spur gear 5 is mounted on the stirring shaft 4, meshing with the first spur gear 3. In use, the device drives the first spur gear 3 to rotate via the drive motor 2. During rotation, the first spur gear 3, through meshing with the second spur gear 5, drives the stirring shaft 4 to rotate, thereby mixing the emulsified asphalt raw materials within the tank 1 through the multiple sets of stirring rods 7. like Figures 4 to 6 As shown, in this embodiment, the stirring shaft 4 is also provided with a liftable drive shaft 9, the tank body 1 is provided with a filling assembly extending into multiple sets of stirring rods 7, and the stirring rods 7 are also provided with a blocking mechanism to block the output end of the filling assembly, so as to convert the lifting of the drive shaft 9 into blocking or unblocking the filling assembly. The filling assembly includes a filling tube 15 that slides through the drive shaft 9, and multiple sets of branch tubes 17 are provided at the end of the filling tube 15. Multiple sets of filling grooves 8 are opened on the stirring rods 7, and the branch tubes 17 are connected to the side walls of the filling grooves 8. The shielding mechanism includes a baffle 12 that can slide laterally inside the stirring rod 7. Multiple shielding blocks 14 are provided on the side of the baffle 12. The shielding blocks 14 are slidably disposed in the filling groove 8 and can shield the end of the branch pipe 17. An inclined frame 10 is provided at the end of the drive shaft 9. A vertical extension frame 11 is provided at the end of the inclined frame 10. A guide post 13 is provided at the end of the baffle 12. The guide post 13 is slidably locked in the inclined frame 10.

[0021] In the initial state, the blocking block 14 is located in the filling groove 8, blocking the end of the branch pipe 17. The inclined frame 10 can be lowered by controlling the drive shaft 9 to descend. During the movement, the inclined frame 10 can drive the stop bar 12 to slide laterally through the cooperation of the guide column 13, so that the blocking block 14 slides until the filling groove 8 is exposed. This allows emulsifiers or additives to be added into the filling pipe 15, and the liquid can be directly added to the mixing area through the branch pipe 17, improving the mixing effect and avoiding the accumulation of liquid on the asphalt surface, which would require more time for thorough mixing.

[0022] like Figure 1 , 2As shown in Figure 6, in this embodiment, the drive shaft 9 and the filling assembly are connected by a liquid supply mechanism. After the drive shaft 9 descends, the liquid supply mechanism converts the rotation of the stirring shaft 4 into power to supply liquid to the filling assembly. The liquid supply mechanism includes a filling cylinder 33 fixedly mounted on the tank body 1. A drive disk 28 is rotatably mounted on the tank body 1. The drive disk 28 is connected to the filling cylinder 33 and the filling pipe 15 through a pump assembly. The pump assembly includes a piston cylinder 32 mounted on the tank body 1. The piston cylinder 32 is connected to a first pipe 34 and a second pipe 36. The first pipe 34 is equipped with a first one-way valve 35 and is connected to the filling cylinder 33. The second pipe 36 is equipped with a second one-way valve 37 and is rotatably connected to the connecting seat 16 at the top of the filling pipe 15. A piston plate 31 is laterally slidable inside the piston cylinder 32. One end of the connecting rod 30 is hinged to the piston plate 31, and the other end is eccentrically hinged to the drive disk 28.

[0023] The drive disc 28 can be rotated by controlling the drive disc 28. During the rotation, the drive disc 28 drives the piston plate 31 to reciprocate in the piston cylinder 32 through the connecting rod 30, so that a negative pressure is formed in the piston cylinder 32. Under the action of the first one-way valve 35 and the second one-way valve 37, the liquid in the filling cylinder 33 is drawn and added to the filling pipe 15. The connection between the connecting seat 16 on the filling pipe 15 and the second pipe 36 is rotatably sealed, so as not to interfere with the rotation of the stirring shaft 4.

[0024] like Figures 3 to 5 As shown, in this embodiment, the liquid supply mechanism also includes a handle 26 that can be horizontally slidably disposed on the tank body 1. The handle 26 is connected to the drive shaft 9 through a control component to convert the sliding of the handle 26 into control of the lifting and lowering of the drive shaft 9. The control component includes a lifting frame 21 that can be lifted and lowered disposed on the tank body 1. The lifting frame 21 is provided with an inclined groove 23. The end of the drive shaft 9 is rotatably disposed in the lifting frame 21. The handle 26 is provided with a drive column 25, which is slidably engaged in the inclined groove 23.

[0025] The drive column 25 can be slid laterally by sliding the control handle 26. During this lateral sliding, the drive column 25, in conjunction with the inclined groove 23, drives the drive shaft 9 to rise and fall. The descent of the drive shaft 9 releases the obstruction of the filling component, allowing for filling. Both ends of the inclined groove 23 are connected to flat grooves 24, within which the drive column 25 can be locked. By sliding the drive column 25 into the flat groove 24, its position can be locked after adjusting the rise and fall of the drive shaft 9, eliminating the need for prolonged control of the drive column 25's movement. Furthermore, an elastic element 22 is provided between the lifting frame 21 and the tank body 1. The arrangement of the elastic element 22 ensures that the adjusted lifting frame 21 has an upward tendency, increasing the friction between the drive column 25 and the flat groove 24, preventing the drive column 25 from sliding independently, and improving the stability of the equipment structure.

[0026] like Figure 2 , 3 As shown, in this embodiment, the liquid supply mechanism further includes a clutch assembly connected to the handle 26 and the drive disk 28. The clutch assembly converts the rotation of the stirring shaft 4 into the rotation of the drive disk 28 after the handle 26 slides. The clutch assembly includes a sliding frame 27 mounted on the handle 26, which is horizontally slidable on the tank 1. A first bevel gear 6 is mounted on the stirring shaft 4, and a second bevel gear 18 is rotatably mounted on the tank 1. The second bevel gear 18 meshes with the first bevel gear 6. A linkage rod 19 slides laterally along the axis of the second bevel gear 18. The linkage rod 19 is rotatably mounted on the sliding frame 27, and a first gear 20 is mounted at the end of the linkage rod 19. A second gear 29 is coaxially connected to the drive disk 28, and the second gear 29 is arranged opposite to the first gear 20.

[0027] During rotation, the stirring shaft 4 drives the linkage rod 19 to rotate via the meshing of the first bevel gear 6 and the second bevel gear 18, thereby causing the first gear disc 20 to rotate. When no liquid is added, the first gear disc 20 and the second gear disc 29 are disengaged, thus preventing the pump assembly from starting and avoiding pipeline damage. As the control handle 26 slides, it moves the sliding frame 27. During this movement, the first gear disc 20 translates until it engages with the second gear disc 29, allowing liquid to be added simultaneously with the exposure of the control branch pipe 17. This improves the synchronization of the equipment and increases the energy conversion rate.

[0028] Specific usage and beneficial effects of the present invention: This device extends the filling component into the mixing rod 7, changing the traditional top-filling mode. This allows emulsifiers and additives to be directly delivered into the asphalt material, avoiding surface accumulation and shortening the mixing path from the source. Through a shielding mechanism linked to the drive shaft 9, the lifting and lowering of the drive shaft 9 controls the opening and closing of the filling component's output end. Simultaneously, it ensures that the output end of the filling component is immediately shielded after liquid supply stops, preventing asphalt from entering and solidifying inside the filling component, thus preventing blockage. This achieves synchronized start and stop of additive addition and mixing, requiring no additional operation and reducing ineffective mixing time. Furthermore, the liquid supply mechanism is powered by the rotation of the mixing shaft 4, eliminating the need for additional drive components. This simplifies the structure and ensures that the additive supply matches the mixing rhythm, allowing the additive to be evenly dispersed into the material as the mixing rod 7 rotates. Simultaneously, the mixing shaft 4 drives the mixing rod 7, and the precise liquid supply from the filling component works in tandem, allowing the additive to rapidly diffuse within the material, avoiding uneven local concentrations, improving the stability of the emulsified asphalt, and making it particularly suitable for high-viscosity asphalt mixing scenarios, significantly improving production efficiency and product quality.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to the present invention, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A mixing and blending device for emulsified asphalt, characterized in that, Including: Tank body (1); The stirring shaft (4) is rotatably installed inside the tank (1) by a drive mechanism. Multiple stirring rods (7) are provided at the bottom of the stirring shaft (4). A liftable drive shaft (9) is also provided on the stirring shaft (4). A filling component is provided on the tank (1) and extends into multiple sets of stirring rods (7). The stirring rods (7) are also provided with a blocking mechanism to block the output end of the filling component, so as to convert the lifting of the drive shaft (9) into blocking or unblocking the filling component. and A liquid supply mechanism, connected to the drive shaft (9) and the dispensing assembly, converts the rotation of the stirring shaft (4) into power to supply liquid to the dispensing assembly after the drive shaft (9) descends.

2. The emulsified asphalt mixing equipment according to claim 1, characterized in that, The driving mechanism includes: A drive motor (2) is fixedly mounted on the tank body (1), and its output shaft is provided with a first spur gear (3); and The second spur gear (5) is disposed on the stirring shaft (4) and meshes with the first spur gear (3).

3. The emulsified asphalt mixing equipment according to claim 1, characterized in that: The filling assembly includes a filling tube (15) that slides through the drive shaft (9). The end of the filling tube (15) is provided with multiple sets of branch tubes (17). Multiple sets of filling grooves (8) are opened on the stirring rod (7). The branch tubes (17) are connected to the side wall of the filling grooves (8).

4. The emulsified asphalt mixing equipment according to claim 3, characterized in that, The blocking mechanism includes: The baffle (12) is slidably disposed in the stirring rod (7), and multiple sets of shielding blocks (14) are provided on its side. The shielding blocks (14) are slidably disposed in the filling groove (8) and can shield the end of the branch pipe (17). A slanted frame (10) is disposed at the end of the drive shaft (9), and a vertical extension frame (11) is provided at the end of the slanted frame (10); and The guide post (13) is located at the end of the stop bar (12) and is slidably locked inside the inclined frame (10).

5. The emulsified asphalt mixing equipment according to claim 3, characterized in that, The liquid supply mechanism includes: A filling cylinder (33) is fixedly installed on the tank body (1); The drive disc (28) is rotatably mounted on the tank body (1) and is connected to the filling cylinder (33) and the filling pipe (15) via a pump assembly; The handle (26) is horizontally slidably mounted on the tank (1) and connected to the drive shaft (9) via a control component to convert the sliding of the handle (26) into driving the drive shaft (9) to rise and fall; and A clutch assembly, connected to the handle (26) and the drive disc (28), converts the rotation of the stirring shaft (4) into the rotation of the drive disc (28) after the handle (26) slides.

6. The emulsified asphalt mixing equipment according to claim 5, characterized in that, The pump assembly includes: A piston cylinder (32) is disposed on the tank body (1) and connected to a first pipe (34) and a second pipe (36). The first pipe (34) is provided with a first check valve (35) and is connected to the filling cylinder (33). The second pipe (36) is provided with a second check valve (37) and is rotatably connected to the connecting seat (16) at the top of the filling pipe (15). A piston plate (31) is laterally slidable within the piston cylinder (32); and The connecting rod (30) is hinged at one end to the piston plate (31) and eccentrically hinged at the other end to the drive disc (28).

7. The emulsified asphalt mixing equipment according to claim 5, characterized in that, The control component includes: A lifting frame (21) is vertically mounted on the tank body (1) and has an inclined groove (23). The end of the drive shaft (9) is rotatably mounted inside the lifting frame (21). The drive column (25) is mounted on the handle (26) and is slidably engaged in the inclined groove (23).

8. The emulsified asphalt mixing equipment according to claim 7, characterized in that: Both ends of the inclined groove (23) are connected to the flat groove (24), and the drive column (25) can be locked in the flat groove (24).

9. The emulsified asphalt mixing equipment according to claim 8, characterized in that: An elastic element (22) is provided between the lifting frame (21) and the tank (1).

10. The emulsified asphalt mixing equipment according to claim 9, characterized in that, The clutch assembly includes: A sliding bracket (27) is mounted on the handle (26) and is horizontally slidable on the tank body (1); The first bevel gear (6) is mounted on the stirring shaft (4); The second bevel gear (18) is rotatably mounted on the tank body (1) and meshes with the first bevel gear (6). A linkage rod (19) is slidably mounted on the second bevel gear (18) along its axis. The linkage rod (19) is rotatably mounted on the sliding frame (27). The first gear (20) is disposed at the end of the linkage (19); and The second toothed disc (29) is arranged opposite to the first toothed disc (20) and is coaxially connected to the drive disc (28).

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