Device for improving heating uniformity of recycled asphalt concrete
By designing a moving centrifugal structure and agitation structure, the problem of uneven heating during the heating process of recycled asphalt concrete was solved, achieving uniform heat distribution and efficient material discharge, thus improving production efficiency.
Patent Information
- Application Number
- CN202520312315.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The problem of uneven heating occurs in recycled asphalt concrete during the heating process due to the different sizes of the aggregate.
The design employs both active and fixed centrifugal structures. High-speed centrifugal force is used to distribute crushed stone in layers according to size, and the stirring structure promotes uniform heat diffusion. Combined with the stirring action of the stirring structure, heat is ensured to be evenly distributed in the raw materials.
It significantly improves the heating uniformity of recycled asphalt concrete, avoids local overheating or undercooling, improves production efficiency, and enhances the convenience of material discharge.
Smart Images
Figure CN223907289U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of asphalt concrete, more specifically, to a device for improving the heating uniformity of recycled asphalt concrete. BACKGROUND
[0002] Recycled asphalt concrete is an environmentally friendly road construction material that recycles and processes old asphalt pavement materials for road construction. Asphalt concrete is a mixture of mineral aggregates (such as crushed stone, crushed gravel, stone chips, or sand, mineral powder, etc.) with a certain gradation and a certain proportion of new and old asphalt materials for road construction, which is prepared under strict control conditions. During the production of asphalt concrete, new aggregates, new asphalt, and recycling agents need to be fully mixed under heating conditions in a certain proportion. During the mixing process, the sizes of the mineral aggregates and recycled old asphalt materials are different, and the distribution of the large and small stones is chaotic during heating. Large asphalt stones require more heat and heating time than small asphalt stones, which causes uneven heating. In view of this, we propose a device for improving the heating uniformity of recycled asphalt concrete. SUMMARY
[0003] The utility model aims at overcoming the defects of the prior art, adapting to the actual needs, and providing a device for improving the heating uniformity of recycled asphalt concrete to solve the current uneven heating problem.
[0004] To solve the above technical problems, the utility model provides the following technical scheme: a device for improving the heating uniformity of recycled asphalt concrete, comprising a heating tank main body, a top cover is arranged on the top of the heating tank main body, a drive motor is arranged on one side of the top cover, a drive rod is connected to the drive end of the drive motor, a center rod is arranged on one side of the drive rod, a heating part is arranged in the side wall of the heating tank main body, a movable centrifugal structure is arranged on the outer periphery of the center rod, a fixed centrifugal structure is arranged on one side of the movable centrifugal structure, and a stirring structure is arranged in the upper half of the heating tank main body.
[0005] Preferably, the movable centrifugal structure comprises a plurality of movable arcs with different diameters, a plurality of bases are arranged between the bottoms of the movable arcs on one side, a plurality of connecting arcs are connected between the movable arcs with the same diameter, and a plurality of connecting rods are connected between the movable arcs on the innermost side and the center rod.
[0006] Preferably, the fixed centrifugal structure comprises a plurality of fixed arcs with different diameters, a bottom connecting plate is connected between the bottoms of the fixed arcs, and the bottom connecting plate is fixed to the inner wall of the heating tank main body on one side.
[0007] Preferably, the movable arcs and the fixed arcs with the same diameter are arranged alternately and abut each other to form a plurality of layered areas.
[0008] Preferably, the stirring structure comprises a ring gear at the top between multiple layered areas, the ring gear is rotationally connected with the top cover, a stirring rod is connected at the bottom of the ring gear, and a stirring shovel is connected at the bottom of the stirring rod.
[0009] Preferably, engagement gears are engaged between the ring gears, the engagement gears are rotationally connected with the inner top of the top cover at the center, the innermost engagement gear is further engaged with a transmission gear, the transmission gear is fixed with the outer periphery of the center rod at the center, and one of the engagement gears is connected with the driving rod.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] 1. The unique movable centrifugal structure and fixed centrifugal structure design, using high-speed centrifugal force, the different size of the broken asphalt or stone chips are distributed in layers according to size, first, the large size of the broken asphalt which needs more heat and heating time is heated, then the heat is gradually transferred to the inside, effectively solve the problem of uneven heating caused by different sizes of broken stone in the traditional heating process, significantly improve the uniformity of the heating of the recycled asphalt concrete, solve the problem of uneven heating.
[0012] 2. The stirring structure arranged in the upper half of the heating tank main body, when the driving motor is running, the engagement gear is driven to rotate by the driving rod, and then the ring gear and the transmission gear are driven to rotate, so that the stirring rod and the stirring shovel connected at the bottom of the ring gear stir the internal raw materials. The continuous stirring of the stirring rod promotes the continuous flow of the raw materials, avoids the local overheating or overcooling phenomenon, makes the heat spread more quickly and uniformly in the raw materials, further improves the uniformity of the overall heating of the recycled asphalt concrete, and solves the problem of uneven heating.
[0013] 3. The utility model also comprises a plurality of notches formed in the bottom of the base and the bottom connecting plate, and cooperates with the discharge port at the bottom of the heating tank main body, and combines the stirring effect of the stirring structure, so that the stirring shovel can shovel the raw materials and move them to the notch and the discharge port position when the device is running, realizes convenient discharging, effectively improves the previous inconvenient discharging condition, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a structural schematic view of the utility model when the main body is removed;
[0016] Figure 3 It is a structural schematic view of the utility model when the main body and the fixed centrifugal structure are removed;
[0017] Figure 4The structural diagram of the fixed centrifugal structure in the utility model is shown.
[0018] Figure 5 The structural diagram of the stirring structure in the utility model is shown.
[0019] Label explanation in the figure: 1, heating tank main body; 2, top cover; 3, driving motor; 4, driving rod; 5, center rod; 6, movable centrifugal structure; 7, fixed centrifugal structure; 8, stirring structure;
[0020] 601, movable arc; 602, base; 603, connecting arc; 604, connecting rod;
[0021] 701, fixed arc; 702, bottom connecting plate;
[0022] 801, ring gear; 802, stirring rod; 803, stirring shovel; 804, meshing gear; 805, transmission gear. DETAILED DESCRIPTION
[0023] For example, Figures 1 to 5As shown, the utility model relates to a device for improving the heating uniformity of recycled asphalt concrete, and the heating tank main body 1 is a core component, a heating part is integrated in the side wall, provides a heat source for material heating, and the support feet installed at the bottom ensure the stability of the device, the heating tank main body can be directly purchased from the existing stirring heating tank, the basic functions are ensured, and the research and development cost and time are reduced, the top of the heating tank main body 1 is provided with a top cover 2, the top cover 2 not only plays a sealing role, but also is connected with a feeding port at the top, the driving motor 3 installed on one side is the power source of the whole device, the existing stirring heating tank can be directly purchased, the top of the heating tank main body 1 is provided with a top cover 2, the top cover 2 is connected with a feeding port at the top, one side of the top cover 2 is provided with a driving motor 3, the driving end of the driving motor 3 is connected with a driving rod 4, one side of the driving rod 4 is provided with a center rod 5, the movable centrifugal structure 6 is arranged around the center rod 5, the movable centrifugal structure 6 is composed of a plurality of movable arcs 601 with different diameters, the movable arcs 601 are connected into a whole through a base 602, the base 602 not only enhances the connection strength between the movable arcs 601, but also plays a key role when the device operates, a plurality of movable arcs 601 with the same diameter are connected through a plurality of connecting arcs 603, a plurality of movable arcs 601 at the innermost side are connected with the center rod 5 through a connecting rod 604, when the center rod 5 rotates at high speed under the drive of the driving motor 3, the movable arcs 601 rotate, the surrounding effect provided by the connecting arcs 603 further enhances the centrifugal force, so that the movable centrifugal structure can efficiently exert the centrifugal action on the material, the movable centrifugal structure 6 is correspondingly provided with a fixed centrifugal structure 7, the fixed centrifugal structure 7 comprises a plurality of fixed arcs 701 with different diameters, the fixed arcs 701 are connected through a bottom connecting plate 702 at the bottom, one side of the bottom connecting plate 702 is fixed with the inner wall of the heating tank main body 1, so as to ensure the stability of the fixed centrifugal structure, the unique design of the movable arcs 601 and the fixed arcs 701 is that the two staggered arrangements close to the same diameter and the adjacent sides are mutually fitted, so that they can form a plurality of layered areas in the rotating process, and the layered design is the key to realizing the separation and orderly heating of the material according to the particle size.
[0024] Working principle; through external control combination control driving motor 3 starts, drive driving rod 4 and center rod 5 high -speed rotation, movable centrifugal structure 6 runs, under the action of centrifugal force, the recovered broken asphalt or stone chips are thrown out, because the size of the broken stone is different, the centrifugal force is also different, the large size heavy broken asphalt or stone chips will be thrown to a farther place, so that the distribution state of gradually reducing the volume of the broken stone from the outside large broken stone area to the inside broken stone is formed in the heating tank main body 1, at this time, the heating part of the heating tank main body 1 starts to work, first, the large size broken asphalt or stone chips needing more heat and heating time at the outermost side are heated, and the heat is gradually transferred to the inside, so that the heating uniformity is greatly improved.
[0025] In order to further improve the uniformity of heating, the stirring structure 8 is arranged in the upper half of the heating tank body 1, the stirring structure 8 comprises a ring gear 801 arranged at the top of multiple layered areas, the ring gear 801 is rotationally connected with the top cover 2, the stirring rod 802 and the stirring shovel 803 connected at the bottom of the ring gear 801 constitute the execution component of stirring, the engagement gears 804 are engaged between the multiple stirring shovels 803, the engagement gears 804 are rotationally connected with the top cover 2 at the center, the innermost engagement gear 804 is also engaged with the transmission gear 805, the center of the transmission gear 805 is fixedly connected with the outer periphery of the center rod 5, one of the driving rods 4 is connected with the engagement gear 804, when the driving motor 3 operates, the driving rod 4 drives the engagement gear 804 to rotate, and then drives the multiple engagement gears 804, the ring gear 801 and the transmission gear 805 to rotate cooperatively, the stirring shovels 803 stir the materials, and the uniform distribution of heat is further promoted.
[0026] The bottom of the heating tank body 1 is provided with a discharge port, and the bottom of the base 602 and the bottom connecting plate 702 is provided with multiple grooves, which are matched with the discharge port arranged at the bottom of the heating tank body 1, the discharge port can be arranged with multiple stirring shovels 803 in different layered areas, when the stirring structure 8 works, the stirring shovels 803 can shovel and move the raw materials, so that the raw materials can smoothly reach the groove and the discharge port position, the efficient output of the materials is realized, and the heating and discharging process of the regenerated asphalt concrete is completed.
[0027] The embodiments of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, the spirit of the utility model is appreciated to the above-mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, are in the protection range of the utility model.
Claims
1. A device for improving the uniformity of heating of reclaimed asphalt concrete, characterized by, Including heating tank body (1), the top of the heating tank body (1) is equipped with top cover (2), one side of top cover (2) is provided with driving motor (3), the driving end of driving motor (3) is connected with driving rod (4), one side of driving rod (4) is equipped with center rod (5), the side wall of heating tank body (1) is equipped with heating part, the outer periphery of center rod (5) is equipped with movable centrifugal structure (6), one side of movable centrifugal structure (6) is equipped with fixed centrifugal structure (7), the inside upper half of heating tank body (1) is equipped with agitating structure (8).
2. The device for improving the thermal uniformity of reclaimed asphalt concrete according to claim 1, characterized in that, The movable centrifugal structure (6) includes a plurality of movable arcs (601) with different diameters, a plurality of the movable arcs (601) are mounted between the bottom of one side and the base (602), a plurality of connecting arcs (603) are connected between a plurality of movable arcs (601) with the same diameter, a plurality of connecting rods (604) are connected between a plurality of movable arcs (601) on the innermost side and the center rod (5).
3. The device for improving the thermal uniformity of reclaimed asphalt concrete according to claim 2, characterized in that, The fixed centrifugal structure (7) includes a plurality of fixed arcs (701) with different diameters, a plurality of the fixed arcs (701) are connected between the bottom and the bottom connecting plate (702), and the bottom connecting plate (702) is fixed to the inner wall of the heating tank body (1) on one side.
4. The device for improving the thermal uniformity of reclaimed asphalt concrete according to claim 3, characterized in that, A plurality of the movable arcs (601) and the fixed arcs (701) with the same diameter are arranged alternately and adhere to each other, forming a plurality of layered areas.
5. The device for improving the thermal uniformity of reclaimed asphalt concrete according to claim 4, characterized in that, The agitating structure (8) includes a ring gear (801) at the top between a plurality of layered areas, the ring gear (801) is rotatably connected to the top cover (2), the stirring rod (802) is connected to the bottom of the ring gear (801), and the stirring shovel (803) is connected to the bottom of the stirring rod (802).
6. The device for improving the thermal uniformity of reclaimed asphalt concrete according to claim 5, characterized in that, The meshing gears (804) are engaged between the ring gears (801), the meshing gears (804) are rotatably connected to the inner top of the top cover (2) at the center, the innermost meshing gear (804) is also engaged with the transmission gear (805), the transmission gear (805) is fixed to the outer periphery of the center rod (5) at the center, and one of the meshing gears (804) is connected to the driving rod (4).