Asphalt mixing tank with adding device
By setting a recycling agent outlet on the mixing paddle and equipping it with a guiding structure, the problem of fixed recycling agent addition position is solved, and uniform mixing of recycling agent and old asphalt is achieved, thus improving mixing efficiency.
Patent Information
- Application Number
- CN202422434927.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In existing technologies, the fixed location for adding the recycling agent leads to uneven mixing of the old asphalt and the recycling agent, resulting in low mixing efficiency.
Design an asphalt mixing tank with an additive device. By setting a recycling outlet on the mixing paddle and equipping it with a guiding structure, including an adapter ring, a delivery pipe and a connecting ring, the position of the recycling outlet changes with the rotation of the mixing paddle, ensuring uniform distribution of the recycling agent.
It improves the mixing efficiency of the recycling agent and old asphalt, ensures that the recycling agent is evenly distributed in the mixing tank, and avoids the rotation of the agitator affecting the stability of the conveying path.
Smart Images
Figure CN223766679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of asphalt mixing tank technology, specifically to an asphalt mixing tank with an additive device. Background Technology
[0002] Asphalt is generally used as a road surface material in urban and rural transportation infrastructure construction. However, over time, it has been found that roads paved with asphalt will age due to traffic load and harsh environmental conditions during long-term use, resulting in a decline in their performance.
[0003] In order to make old asphalt mixtures effective for road maintenance and repaving, high-viscosity recycling agents such as asphalt recycling agents are usually added to the old asphalt mixtures to improve the performance of the old asphalt.
[0004] Currently, to ensure uniform mixing of old asphalt and recycling agents, mixing tanks are typically used. However, during the addition of recycling agents, the fixed position of the nozzles used to spray the recycling agents into the mixing tank means that the recycling agents can only be added to a specific location within the tank, affecting the uniformity of their distribution. Although the mixing tank has agitator and other structures for mixing, this undoubtedly increases the mixing time between the old asphalt and recycling agents, thus reducing the mixing efficiency. Utility Model Content
[0005] This invention proposes an asphalt mixing tank with an additive device, which solves the problem in related technologies where the fixed position of the recycling agent addition in the mixing tank affects the mixing efficiency of old asphalt and recycling agent.
[0006] The technical solution of this utility model is as follows:
[0007] An asphalt mixing tank with an additive device includes a mixing tank body, a stirring paddle in the mixing tank body, a recycling agent outlet on the stirring paddle, and a guiding structure on the mixing tank body for guiding the recycling agent to the recycling agent outlet. The guiding structure includes a transfer ring and a conveying pipe. The transfer ring has an inlet port and a transfer cavity. The inlet port, transfer cavity, conveying pipe, and recycling agent outlet are interconnected. A connecting ring is provided between the conveying pipe and the transfer ring, and the connecting ring is rotatably connected to the mixing tank.
[0008] Furthermore, the agitator is provided with a discharge pipe, and the regenerant outlet is located at the end of the discharge pipe away from the agitator.
[0009] Furthermore, each of the discharge pipes and regenerator outlets is provided with a plurality of outlets, and each regenerator outlet is correspondingly opened on each discharge pipe. Each discharge pipe is evenly distributed around the stirring paddle and is interconnected with each other.
[0010] Furthermore, the connecting ring is provided with at least two conveying pipes, and each conveying pipe is evenly distributed around the stirring paddle in a circular pattern.
[0011] Furthermore, the transfer cavity is provided with two guide rings for introducing the regenerant into the delivery pipe. Each guide ring is symmetrically and evenly distributed with the opening of the delivery pipe located on the connecting ring as the center, and the longitudinal section of each guide ring is a straight triangular structure.
[0012] Furthermore, the guide ring is provided with a first heating element, the delivery pipe is provided with a second heating element, and the dispensing pipe is provided with a third heating element.
[0013] Furthermore, the horizontal height of the end of the delivery pipe close to the agitator is lower than the horizontal height of the end of the delivery pipe away from the agitator, and the horizontal height of the end of the discharge pipe away from the agitator is lower than the horizontal height of the end of the discharge pipe close to the agitator.
[0014] Furthermore, the impeller includes several stirring blades, and the regenerant outlet is located above each stirring blade.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] This invention places the recycling agent outlet in the mixing paddle, allowing the outlet position to change with the rotation of the paddle. This enables the recycling agent to be thrown or sprayed into the mixing tank along the movement trajectory of the paddle, ensuring that the recycling agent is evenly distributed inside the mixing tank during the addition process, thereby improving the mixing efficiency of the recycling agent and old asphalt.
[0017] Furthermore, to prevent the rotation of the agitator from affecting the normal delivery of the regenerant in this invention, the mixing tank of this invention is provided with a guiding structure for directing the regenerant to the regenerant outlet. The guiding structure mainly includes a transfer ring and a conveying pipe. The transfer ring has an inlet port and an inlet chamber, which are interconnected, meaning the regenerant can be delivered to the inlet chamber through the inlet port. A connecting ring is provided between the conveying pipe and the transfer ring, and the connecting ring is rotatably connected to the transfer chamber. The transfer chamber is interconnected with the conveying pipe, and the conveying pipe is interconnected with the regenerant outlet. That is, the inlet port, the transfer chamber, the conveying pipe, and the regenerant outlet are interconnected. The two ends of the conveying pipe are fixedly connected to the agitator and the connecting ring, respectively, so that the conveying pipe can drive the connecting ring to rotate together under the rotation of the agitator. Because the connecting ring is rotatably connected to the transfer chamber, the regenerant located in the transfer chamber can flow to the mixing tank along the conveying path mainly composed of the transfer chamber and the conveying pipe. Attached Figure Description
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] Figure 1 This is a schematic diagram of the structure of Example 1 or Example 2;
[0020] Figure 2 This is a cross-sectional view of Example 1;
[0021] Figure 3 This is a schematic diagram of the structure of the stirring paddle in Example 1;
[0022] Figure 4 This is a cross-sectional view of Example 2;
[0023] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle.
[0024] In the picture:
[0025] 1. Mixing tank; 2. Agitator; 21. Agitator blade; 3. Regenerant outlet; 41. Adapter ring; 411. Feed inlet; 412. Adapter cavity; 413. Guide ring; 42. Conveying pipe; 43. Connecting ring; 5. Discharge pipe; 6. First heating element; 7. Second heating element; 8. Third heating element. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0027] Example 1
[0028] like Figures 1-2 As shown in the figure, this embodiment proposes an asphalt mixing tank with an additive device, mainly including a mixing tank body 1, a stirring paddle 2 in the mixing tank body 1, and a recycling agent outlet 3 on the stirring paddle 2. That is, in this embodiment, the recycling agent outlet 3 is opened on the stirring paddle 2, and the mixing tank body 1 has a drive motor for driving the stirring paddle 2 to rotate. Driven by the drive motor, the stirring paddle 2 can rotate in the mixing tank body 1. Because the recycling agent outlet 3 is opened on the stirring paddle 2, the position of the recycling agent outlet 3 can change with the rotation of the stirring paddle 2, so that the recycling agent in the recycling agent outlet 3 is thrown or sprayed into the mixing tank body 1 along the movement trajectory of the stirring paddle 2, so that the recycling agent can be evenly distributed inside the mixing tank body 1 during the addition process, thereby improving the mixing efficiency of the recycling agent and the old asphalt.
[0029] Furthermore, to prevent the rotation of the agitator 2 from interrupting the regenerant delivery path in this embodiment, the mixing tank 1 is provided with a guiding structure for directing the regenerant to the regenerant outlet 3. Specifically, the guiding structure includes a transfer ring 41 and a delivery pipe 42. The transfer ring 41 is provided with an inlet 411 and a transfer cavity 412, that is, the transfer ring 41 serves as a transfer and storage unit in this embodiment. The regenerant enters the transfer cavity 412 along the inlet 411, completing the transfer of the regenerant. The inlet 411, the transfer cavity 412, the delivery pipe 42, and the regenerant outlet 3 are interconnected, allowing the regenerant to flow along the delivery pipe 42 to the regenerant outlet 3, completing the regenerant addition. A connecting ring 4 is provided between the delivery pipe 42 and the transfer ring 41. 3. The two ends of the conveying pipe 42 are fixedly connected to the stirring paddle 2 and the connecting ring 43, respectively. The conveying pipe 42 has an inlet on the connecting ring 43 for the regenerant to enter. The connecting ring 43 is rotatably connected to the mixing tank 1, that is, the connecting ring 43 is rotatably connected in the transfer cavity 412. When the stirring paddle 2 rotates, it can drive the conveying pipe 42 and the connecting ring 43 to rotate in the transfer cavity 412. That is, the regenerant conveying path in this embodiment will move with the rotation of the stirring paddle 2, which fully ensures the operational stability of the regenerant conveying operation in this embodiment.
[0030] Meanwhile, the mixing paddle 2 is provided with an outlet pipe 5, and the regenerator outlet 3 is located at the end of the outlet pipe 5 away from the mixing paddle 2. That is, the outlet pipe 5 serves as an extension of the mixing paddle 2, which can further change the location of the regenerator outlet 3. Preferably, the regenerator outlet 3 should be located at half the distance from the rotation axis of the mixing paddle 2 to the inside of the mixing tank 1, so that the regenerator can better diffuse with the asphalt mixture under the stirring action of the mixing paddle 2, thereby improving the mixing efficiency of the asphalt mixture.
[0031] like Figure 3 As shown, the mixing paddle 2 in this embodiment includes several mixing blades 21, and the recycler outlet 3 is located above each mixing blade 21. That is, the recycler outlet 3 is not located in the mixing area of the mixing tank 1, thereby preventing the mixed material from clogging the recycler outlet 3 and affecting the recycler addition work. In addition, when using this embodiment, attention should also be paid to the amount of old asphalt and recycler added to prevent the material level inside the mixing tank 1 from overflowing the recycler outlet and affecting the normal use of this embodiment.
[0032] Several outlet pipes 5 and regenerant outlets 3 are provided. Each regenerant outlet 3 is correspondingly opened on each outlet pipe 5. Each outlet pipe 5 is evenly distributed around the stirring paddle 2 in a circle, which effectively avoids the situation of one side being unbalanced in the stirring paddle 2 in this embodiment and ensures the stability of the stirring paddle 2. Moreover, each outlet pipe 5 is interconnected. Preferably, the conveying pipe 42 should be connected to the connection point of each outlet pipe 5 to ensure that regenerant can flow out of each outlet pipe 5.
[0033] Furthermore, in order to further ensure the stability of the stirring paddle 2, at least two conveying pipes 42 are provided on the connecting ring 43. Each conveying pipe 42 is evenly distributed around the stirring paddle 2. The connecting ring 43, the stirring paddle 2, and each conveying pipe 42 are preferably integrally formed. In this way, not only can the overall structural stability of the stirring paddle 2 be guaranteed, but the discharge efficiency of the regenerant in the transfer cavity 412 can also be improved, thus fully ensuring the addition efficiency of the regenerant in this embodiment.
[0034] At the same time, such as Figure 2 As shown, the transfer cavity 412 is provided with two guide rings 413 for introducing regenerant into the delivery pipe 42. Each guide ring 413 is symmetrically and evenly distributed with the opening of the delivery pipe 42 located on the connecting ring 43 as the center. The longitudinal section of each guide ring 413 is a straight triangular structure, that is, the transfer cavity 412 has a slope structure inside. With the help of this slope structure, the regenerant entering the transfer cavity 412 can flow into the delivery pipe 42 quickly.
[0035] The horizontal height of the end of the conveying pipe 42 close to the agitator 2 is lower than the horizontal height of the end of the conveying pipe 42 away from the agitator 2, and the horizontal height of the end of the discharge pipe 5 away from the agitator 2 is lower than the horizontal height of the end of the discharge pipe 5 close to the agitator 2. That is, by means of the various inclined conveying pipes 42 and discharge pipes 5 in this embodiment, the regenerant in the conveying pipe 42 or discharge pipe 5 can flow by gravity, thereby increasing the flow speed of the regenerant in the conveying path of this embodiment and thus improving the addition efficiency of the regenerant in this embodiment.
[0036] Example 2
[0037] Considering that asphalt recycling agent is a viscous liquid, although its viscosity is relatively low, there is still a possibility of it adhering to the inside of the conveying path and causing blockage. Therefore, based on Example 1, as follows... Figures 4-5 As shown, this embodiment proposes:
[0038] The guide ring 413 is equipped with a first heating element 6, the delivery pipe 42 is equipped with a second heating element 7, and the outlet pipe 5 is equipped with a third heating element 8. The first heating element 6 is preferably an annular heating plate so that it works in conjunction with the annular structure of the guide ring 413 to heat the regenerant in the transfer cavity 412. The second heating element 7 and the third heating element 8 are preferably heating coils so that the second heating element 7 is fitted on the delivery pipe 42 and the third heating element 8 is fitted on the outlet pipe 5. Each delivery pipe 42 should be equipped with a second heating element 7 and each outlet pipe 5 should be equipped with a third heating element 8 so that each delivery pipe 42 can be heated by the action of the second heating element 7 and each outlet pipe 5 can be heated by the action of the third heating element 8. In this way, the heating effect of each first heating element 6, each second heating element 7, and each third heating element 8 is used to reduce the viscosity of the regenerant in the delivery path and ensure that the regenerant can flow normally in the delivery path.
[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An asphalt mixing tank with an addition device, comprising a mixing tank body (1) in which a stirring paddle (2) is provided, characterized in that, The stirring paddle (2) is provided with a regenerant outlet (3), and the mixing tank body (1) is provided with a guide structure for guiding the regenerant to the regenerant outlet (3); The guide structure comprises an adapter ring (41) and a delivery pipe (42), the adapter ring (41) is provided with an inlet interface (411) and an adapter cavity (412), the inlet interface (411), the adapter cavity (412), the delivery pipe (42) and the regenerant outlet (3) are in communication with each other, and the delivery pipe (42) and the adapter ring (41) are provided with a link ring (43), and the link ring (43) is rotationally connected with the mixing tank body (1).
2. The asphalt mixing tank with an adding device according to claim 1, characterized in that, The stirring paddle (2) is provided with an agent outlet pipe (5), and the regenerant outlet (3) is arranged at one end of the agent outlet pipe (5) away from the stirring paddle (2).
3. The asphalt mixing tank with an adding device according to claim 2, characterized in that, The agent outlet pipe (5) and the regenerant outlet (3) are each provided with a plurality of regenerant outlets (3), each of the regenerant outlets (3) is arranged on each of the agent outlet pipes (5) in one-to-one correspondence, each of the agent outlet pipes (5) is uniformly distributed around the stirring paddle (2), and each of the agent outlet pipes (5) is in communication with each other.
4. The asphalt mixing tank with an adding device according to claim 1 or 2, characterized in that, The link ring (43) is provided with at least two delivery pipes (42), and each of the delivery pipes (42) is uniformly distributed around the stirring paddle (2).
5. The asphalt mixing tank with an adding device according to claim 2, characterized in that, The adapter cavity (412) is provided with two guide rings (413) for guiding the regenerant into the delivery pipe (42), each of the guide rings (413) is symmetrically and uniformly distributed with the pipe opening of the delivery pipe (42) on the link ring (43) as the center, and the longitudinal section of each of the guide rings (413) is a straight triangular structure.
6. The asphalt mixing tank with an adding device according to claim 5, characterized in that, The guide ring (413) is provided with a first electric heater (6), the delivery pipe (42) is provided with a second electric heater (7), and the agent outlet pipe (5) is provided with a third electric heater (8).
7. The asphalt mixing tank with an adding device according to claim 2, characterized in that, The horizontal height of one end of the delivery pipe (42) close to the stirring paddle (2) is lower than the horizontal height of the other end of the delivery pipe (42) away from the stirring paddle (2), and the horizontal height of one end of the agent outlet pipe (5) away from the stirring paddle (2) is lower than the horizontal height of the other end of the agent outlet pipe (5) close to the stirring paddle (2).
8. The asphalt mixing tank with an adding device according to claim 1 or 2, characterized in that, The stirring paddle (2) comprises a plurality of stirring blades (21), and the regenerant outlet (3) is located above each of the stirring blades (21).