Waste asphalt recovery device

Abstract

The invention relates to a waste asphalt recycling device which comprises a plurality of primary recycling bins, a plurality of secondary recycling bins and a conveying mechanism connected with the primary recycling bins and the secondary recycling bins, and further comprises a discharging mechanism. A conveying mechanism is correspondingly arranged between each first-stage recycling bin and the corresponding second-stage recycling bin, funnel-shaped discharging openings are formed in the bottoms of the first-stage recycling bins and the bottoms of the second-stage recycling bins, and one ends of the conveying mechanisms are arranged below the discharging openings of the first-stage recycling bins; the conveying mechanism lifts materials falling from the first-stage recycling bin to the other end of the conveying mechanism so that the materials can fall into the second-stage recycling bin from the upper portion, and crushing mechanisms are arranged between a discharging port of the first-stage recycling bin and the conveying mechanism and between a discharging port of the second-stage recycling bin and the discharging mechanism respectively. A side-by-side bin type structure is adopted, and the technical problems that a single-channel device is low in efficiency and prone to blockage are solved.

Description

Technical Field

[0001] This invention relates to the field of asphalt processing equipment technology, specifically a waste asphalt recycling device. Background Technology

[0002] The recycling and reuse of waste asphalt mixtures is one of the core measures for energy conservation and emission reduction in the highway construction field. It can not only significantly reduce the consumption of virgin materials such as new asphalt and aggregates, reducing resource extraction and environmental pollution, but also reduce engineering construction costs, which is in line with the development concept of "green transportation". Its application is becoming increasingly widespread in highway reconstruction and expansion, municipal road maintenance and other projects. In large-scale highway projects, the amount of waste asphalt mixtures generated often reaches thousands or even tens of thousands of tons. However, single-compartment, single-channel equipment can only receive materials through a single feed inlet. Subsequent crushing, conveying and other processes must be carried out in sequence, resulting in a limited processing capacity per unit time. In addition, waste asphalt mixtures often contain irregular materials such as lumps and large aggregates during the recycling process. When the processing volume is large, these materials are prone to bridging and blockage at the discharge port of the single channel. Especially when the material moisture content is high or the asphalt viscosity is high, the lumps will adhere to the inner wall of the discharge port and the surface of the conveying mechanism, gradually accumulating and causing blockage, which seriously restricts the recycling efficiency and engineering applicability. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a waste asphalt recycling device that employs a parallel silo structure to achieve multi-channel feeding and recycling of waste asphalt. By constructing a multi-channel feeding and recycling system through the parallel silo structure, and in conjunction with an independent conveying mechanism and a two-stage crushing mechanism, the technical problems of low efficiency and easy clogging of single-channel devices are solved.

[0004] A waste asphalt recycling device includes a primary recycling bin, a secondary recycling bin, and a conveying mechanism connecting the primary and secondary recycling bins. It also includes a discharge mechanism. Several primary and secondary recycling bins are arranged side by side. A conveying mechanism is provided between each primary and secondary recycling bin. The bottom of each primary and secondary recycling bin is provided with a funnel-shaped discharge port. One end of the conveying mechanism is located below the discharge port of the primary recycling bin. The conveying mechanism lifts the material falling from the primary recycling bin to its other end so that the material falls from above into the secondary recycling bin. Crushing mechanisms are provided between the discharge port of the primary recycling bin and the conveying mechanism, and between the discharge port of the secondary recycling bin and the discharge mechanism.

[0005] Furthermore, the discharge mechanism is equipped with a horizontal discharge section and an upward-sloping discharge section, with several discharge mechanisms arranged side by side above the horizontal discharge section. The horizontal discharge section of the discharge mechanism can receive materials falling from each secondary recycling bin, while the upward-sloping discharge section facilitates the transportation of processed materials to designated locations, improving the convenience of transportation.

[0006] Furthermore, the discharge mechanism includes a discharge bracket, a U-shaped idler roller rotatably mounted on the discharge bracket, a trough-shaped discharge belt laid on the U-shaped idler roller, and a discharge motor that drives the trough-shaped discharge belt.

[0007] Furthermore, the conveying mechanism includes a conveying support, a conveyor belt mounted on the conveying support, and a conveying motor for driving the conveyor belt. The conveyor belt includes a feeding horizontal conveying section located below the primary recycling bin, a discharging horizontal conveying section located above the secondary recycling bin, and a lifting conveying section connecting the feeding horizontal conveying section and the discharging horizontal conveying section.

[0008] Furthermore, the conveyor belt is equipped with strip baffles at intervals perpendicular to its conveying direction. These strip baffles can block the material on the conveyor belt, preventing it from sliding down due to gravity in the lifting and conveying section, ensuring that the material can be smoothly lifted to the discharge horizontal conveying section, and improving the reliability of the conveying.

[0009] Furthermore, the crushing mechanism includes a roller support set below the discharge port, several sets of crushing toothed rollers rotatably mounted on the roller support, and a crushing drive motor that drives the crushing toothed rollers to rotate. Through the crushing of several sets of crushing toothed rollers, large pieces of waste asphalt can be gradually crushed into smaller pieces, improving the thoroughness of crushing and facilitating subsequent recycling.

[0010] Furthermore, the discharge ports of the primary and secondary recycling bins are respectively equipped with a stirring shaft and a stirring motor that drives the stirring shaft to rotate. The stirring shaft is equipped with stirring rods distributed around its axis.

[0011] Furthermore, a material level sensor is installed inside the primary recycling bin, and a status indicator light controlled by the material level sensor signal is installed on the outer wall of the primary recycling bin.

[0012] Compared with the prior art, the beneficial effects of this invention are as follows: by using several primary and secondary recycling bins arranged side by side, and in conjunction with an independent conveying mechanism, multiple batches of waste asphalt materials can be processed simultaneously; multi-channel diversion reduces the material flow rate of a single channel, and in conjunction with the guiding effect of the funnel-shaped discharge port, it effectively avoids material accumulation and blockage, ensuring continuous operation of the equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the conveying mechanism in this invention.

[0016] Figure 3 This is a schematic diagram of the material discharge mechanism in this invention.

[0017] Figure 4 This is a schematic diagram of the crushing mechanism in this invention.

[0018] Figure 5 This is a schematic diagram of the primary recycling bin in this invention.

[0019] The components include: primary recycling bin 1, secondary recycling bin 2, conveying mechanism 3, discharge mechanism 4, crushing mechanism 5, discharge support 6, U-shaped idler roller 7, trough discharge belt 8, discharge motor 9, conveying support 10, conveyor belt 11, conveyor motor 12, strip baffle 13, roller support 14, crushing toothed roller pair 15, crushing drive motor 16, stirring shaft 17, stirring motor 18, stirring rod 19, status indicator light 20, flat discharge section 41, inclined discharge section 42, feeding flat conveying section 111, discharging flat conveying section 112, and lifting conveying section 113. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Please see Figures 1-5 A waste asphalt recycling device includes a primary recycling bin 1, a secondary recycling bin 2, and a conveying mechanism 3 connecting the primary recycling bin 1 and the secondary recycling bin 2. It also includes a discharge mechanism 4. There are several primary recycling bins 1 and secondary recycling bins 2 arranged side by side. A conveying mechanism 3 is respectively arranged between each primary recycling bin 1 and secondary recycling bin 2. The bottom of the primary recycling bin 1 and the secondary recycling bin 2 are provided with funnel-shaped discharge ports. One end of the conveying mechanism 3 is located below the discharge port of the primary recycling bin 1. The conveying mechanism 3 lifts the material falling from the primary recycling bin 1 to its other end so that the material falls from above into the secondary recycling bin 2. Crushing mechanisms 5 are respectively provided between the discharge port of the primary recycling bin 1 and the conveying mechanism 3, and between the discharge port of the secondary recycling bin 2 and the discharge mechanism 4.

[0022] In this embodiment, the discharge mechanism 4 is provided with a flat discharge section 41 and an upwardly inclined discharge section 42, and several discharge mechanisms 4 are arranged side by side above the flat discharge section 41. The flat discharge section 41 of the discharge mechanism 4 can receive the materials falling from each secondary recycling bin 2, and the inclined discharge section 42 facilitates the transportation of the processed materials to a designated location (such as a storage bin or subsequent processing equipment), improving the convenience of transportation.

[0023] In this embodiment, the discharge mechanism 4 includes a discharge bracket 6, a U-shaped idler roller 7 rotatably mounted on the discharge bracket 6, a trough-shaped discharge belt 8 laid on the U-shaped idler roller 7, and a discharge motor 9 driving the trough-shaped discharge belt 8. The U-shaped idler roller 7 keeps the trough-shaped discharge belt 8 in a trough shape, preventing materials from falling from both sides during conveying and improving conveying stability. The discharge motor 9 provides power for the operation of the trough-shaped discharge belt 8, ensuring conveying efficiency.

[0024] In this embodiment, the conveying mechanism 3 includes a conveying support 10, a conveyor belt 11 mounted on the conveying support 10, and a conveying motor 12 driving the conveyor belt 11. The conveyor belt 11 includes a feeding horizontal conveying section 111 located below the primary recycling bin 1, a discharging horizontal conveying section 112 located above the secondary recycling bin 2, and a lifting conveying section 113 connecting the feeding horizontal conveying section 111 and the discharging horizontal conveying section 112. Specifically, the waste asphalt material in the primary recycling bin 1 falls into the feeding horizontal conveying section 111. As the conveyor belt 11 rotates, the waste asphalt material is lifted from the feeding horizontal conveying section 111 to the discharging horizontal conveying section 112 via the lifting conveying section 113, and finally falls into the secondary recycling bin 2 via the discharging horizontal conveying section 112.

[0025] In this embodiment, strip baffles 13 perpendicular to the conveying direction are spaced apart on the conveyor belt 11. The strip baffles 13 can block the material on the conveyor belt 11, preventing the material from sliding down due to gravity in the lifting conveying section 113, ensuring that the material can be smoothly lifted to the discharge flat conveying section 112, and improving the reliability of the conveying.

[0026] In this embodiment, the crushing mechanism 5 includes a roller support 14 disposed below the discharge port, several sets of crushing toothed roller pairs 15 rotatably mounted on the roller support 14, and a crushing drive motor 16 that drives the crushing toothed roller pairs 15 to rotate. Specifically, the crushing drive motor 16 can use a chain gear mechanism to drive the crushing toothed roller pairs 15 to rotate relative to each other. After the material falls from the discharge port, it is crushed by the several sets of crushing toothed roller pairs 15, which can gradually crush large pieces of waste asphalt into smaller pieces, improve the thoroughness of crushing, and provide convenience for subsequent recycling (such as regeneration mixing). Furthermore, the crushing toothed roller pairs 15 in the crushing mechanism 5 under different primary recycling bins 1 and secondary recycling bins 2 can adopt different roller shaft spacings to achieve the classification and recycling of waste asphalt materials of different particle sizes.

[0027] In this embodiment, the discharge ports of the primary recycling bin 1 and the secondary recycling bin 2 are respectively equipped with a stirring shaft 17 and a stirring motor 18 that drives the stirring shaft 17 to rotate. The stirring shaft 17 is equipped with stirring rods 19 distributed around its axis. Specifically, the stirring rods 19 are spirally wrapped around the stirring shaft 17 and connected to the stirring shaft 17 by a connecting rod. The stirring motor 18 drives the stirring shaft 17 to rotate the stirring rods 19. During the rotation of the stirring rods 19, the accumulated waste asphalt is dispersed, preventing the material from accumulating at the discharge port and causing blockage, thus ensuring the discharge efficiency.

[0028] In this embodiment, a level sensor is installed inside the primary recycling bin 1, and a status indicator light 20 controlled by the level sensor signal is installed on the outer wall of the primary recycling bin. Specifically, the level sensor can be an infrared laser sensor or a radar sensor to detect the material level in the primary recycling bin. When the level sensor detects that the material in the primary recycling bin has reached the set high level, the status indicator light 20 will emit a red signal to remind the operator to adjust the feeding speed or take other corresponding measures to avoid material overflow. When the material drops to the set low level, the status indicator light 20 will emit a green signal to prompt the operator to continue feeding. Through the combined use of the level sensor and the status indicator light 20, the operator can monitor the material status in the primary recycling bin in real time, achieve precise control of the recycling process, and ensure the safe and stable operation of the recycling device.

[0029] The working principle of this invention is as follows: Waste asphalt material is put into the primary recycling bin 1. The material falls through the funnel-shaped discharge port at the bottom of the primary recycling bin 1 to the crushing mechanism 5 below it. The crushing drive motor 16 drives the crushing toothed roller pair 15 to rotate, crushing the material once. The material after the first crushing falls into the feeding horizontal conveying section 111 of the conveying mechanism 3. The conveying motor 12 drives the conveyor belt 11 to run. Under the obstruction of the strip baffle 13, the material is lifted by the lifting conveying section 113 to the discharge horizontal conveying section 112, and then falls into the corresponding secondary recycling bin 2. After being temporarily stored in the secondary recycling bin 2, the material falls through the funnel-shaped discharge port at the bottom of it to the crushing mechanism 5 below it for secondary crushing. The material after the secondary crushing falls into the horizontal discharge section 41 of the discharge mechanism 4. The discharge motor 9 drives the trough-shaped discharge belt 8 to run, and the material is transported through the inclined discharge section 42 to a designated location, such as a storage bin or a mixing and melting tank, or other subsequent processing equipment, to complete the recycling of waste asphalt.

[0030] The beneficial effects of this invention are as follows: by using several primary recycling bins 1 and secondary recycling bins 2 arranged side by side, and in conjunction with an independent conveying mechanism 3, multiple batches of waste asphalt materials can be processed simultaneously; multi-channel diversion reduces the material flow rate of a single channel, and in conjunction with the guiding effect of the funnel-shaped discharge port, it effectively avoids material accumulation and blockage, and ensures continuous operation of the equipment.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A waste asphalt recycling device, comprising a first recycling bin, a second recycling bin and a conveying mechanism connecting the first recycling bin and the second recycling bin, characterized in that, The discharge mechanism is provided with a plurality of funnel-shaped discharge ports arranged side by side at the bottom of the first and second recycling bins, and a conveying mechanism is arranged below each discharge port of the first recycling bin.

2. The waste and old asphalt recycling device according to claim 1, characterized in that, The discharge mechanism is provided with a horizontal discharge section and an upwardly inclined discharge section, and a plurality of discharge mechanisms are arranged side by side above the horizontal discharge section.

3. The device for recycling waste asphalt according to claim 1, characterized in that, The discharge mechanism comprises a discharge support, a U-shaped carrier roller rotatably installed on the discharge support, a groove-shaped discharge belt laid on the U-shaped carrier roller, and a discharge motor for driving the groove-shaped discharge belt.

4. The device for recycling waste and old asphalt according to claim 1, characterized in that, The conveying mechanism comprises a conveying support, a conveying belt arranged on the conveying support, and a conveying motor for driving the conveying belt, wherein the conveying belt comprises a horizontal feeding section arranged below the first recycling bin, a horizontal discharge section arranged above the second recycling bin, and a lifting conveying section connected between the horizontal feeding section and the horizontal discharge section.

5. The device for recycling waste and old asphalt according to claim 1, characterized in that, Strip-shaped baffles are arranged on the conveying belt in a spaced manner and are perpendicular to the conveying direction of the conveying belt.

6. The device for recycling waste and old asphalt according to claim 1, characterized in that, The crushing mechanism comprises a roller group support arranged below the discharge port, a plurality of crushing tooth roller pairs rotatably installed on the roller group support, and a crushing drive motor for driving the crushing tooth roller pairs to rotate.

7. The device for recycling waste and old asphalt according to claim 1, characterized in that, The discharge ports of the first and second recycling bins are respectively provided with stirring shafts and stirring motors for driving the stirring shafts to rotate, and the stirring shafts are provided with stirring rods distributed around the shafts.

8. The device for recycling waste asphalt according to claim 1, characterized in that, A material level sensor is arranged in the first recycling bin, and a state indicator lamp controlled by the material level sensor is arranged on the outer wall of the first recycling bin.

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