Recycled asphalt mixing plant
By introducing microwave heating regeneration chamber and control mechanism into the asphalt mixing station, the problem of unsuitable mixing ratio of RAP materials is solved, and efficient RAP materials processing and low-cost automated operations are achieved.
Patent Information
- Application Number
- CN202421845721.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-01
AI Technical Summary
When processing regenerated asphalt mixtures in existing asphalt mixing stations, there is a situation where the RAP material mixing ratio is not suitable, resulting in processing failure, and the existing solutions are inefficient and labor costs.
The microwave heating regeneration box is adopted to control the transport and emission of RAP materials through the control mechanism, and efficient RAP materials ratio adjustment and heating are achieved, reducing manual intervention.
It improves the efficiency of RAP material treatment and reduces labor costs, avoids overheating and aging of RAP material, and achieves efficient heating and emission of RAP material.
Smart Images
Figure CN223189529U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of asphalt mixture production and manufacturing, and in particular to a recycled asphalt mixing station. Background Art
[0002] Asphalt mixing plants are essential facilities that play a crucial role in road construction. Currently, while these plants are capable of heating and drying recycled asphalt mix (RAP) to effectively utilize waste asphalt road materials, their heaters are typically limited to traditional direct flame heating or indirect heaters.
[0003] In addition, since the RAP material batching silo is dynamically batched during operation, the RAP material mixing ratio may be unsuitable during operation. For example, the material in some silos is used up and not replenished in time. In this case, the RAP material with an unsuitable ratio that has been transferred to the heater needs to be poured out, otherwise the processed recycled asphalt mixture cannot be used. Existing mixing plants usually use manual methods to remove the RAP material that does not meet the ratio from the heater, but this method is inefficient and has high labor costs. Summary of the Invention
[0004] The present application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of the present application provide a regenerated asphalt mixing plant that can discharge or convey RAP material from a microwave-heated regeneration tank through a control mechanism, resulting in higher efficiency and lower labor costs.
[0005] A recycled asphalt mixing station comprises a RAP material batching bin, a RAP material conveyor, a continuous mixer, a RAP material elevator, a RAP material hot air drying drum, a hot RAP material temporary storage bin, a mixing tank and a microwave heating regeneration box, wherein the RAP material conveyor is connected to the RAP material batching bin and the continuous mixer, the continuous mixer is connected to the RAP material elevator, the RAP material hot air drying drum is connected to the RAP material elevator, the hot RAP material temporary storage bin is connected to the bottom of the RAP material hot air drying drum, the mixing tank is connected to the bottom of the hot RAP material temporary storage bin, the microwave heating regeneration box is arranged on the side of the RAP material hot air drying drum and the hot RAP material temporary storage bin, the bottom of the microwave heating regeneration box is provided with a discharge chute, and the microwave A first baffle is provided at a position corresponding to the discharge chute inside the heating regeneration box, the microwave heating regeneration box is connected to the RAP material hot air drying drum through a conveying mechanism, the microwave heating regeneration box is connected to the hot RAP material temporary storage bin through a conveying channel, a second baffle is provided at a position corresponding to the conveying channel inside the microwave heating regeneration box, a horizontal conveyor belt is provided at the bottom of the microwave heating regeneration box, the two ends of the horizontal conveyor belt correspond to the discharge chute and the conveying channel respectively, a control mechanism is provided on one side of the microwave heating regeneration box, the control mechanism is used to control the opening or closing of the first baffle and the second baffle, the control mechanism is used to control the forward or reverse conveying of the horizontal conveyor belt, and the control mechanism is used to control the start or stop of the conveying mechanism.
[0006] In an optional or preferred embodiment, the first baffle plate is installed inside the microwave heating regeneration box via a first lifting motor, and the second baffle plate is installed inside the microwave heating regeneration box via a second lifting motor.
[0007] In an optional or preferred embodiment, the conveying mechanism is a conveyor belt.
[0008] In an optional or preferred embodiment, a RAP material weighing and metering bin is provided below the hot RAP material temporary storage bin, and the RAP material weighing and metering bin is connected to the hot RAP material temporary storage bin and the mixing tank.
[0009] In an optional or preferred embodiment, a finished material temporary storage bin is provided below the mixing tank, and the finished material temporary storage bin is communicated with the mixing tank.
[0010] In an optional or preferred embodiment, the recycled asphalt mixing station also includes a first bracket, and the RAP material hot air drying drum, hot RAP material temporary storage bin, RAP material weighing and metering bin, mixing tank and finished material temporary storage bin are layered from top to bottom on the first bracket.
[0011] In an optional or preferred embodiment, the regenerated asphalt mixing plant further includes a second bracket, and the microwave heating regeneration box is fixed on the second bracket.
[0012] Based on the above technical scheme, the embodiments of the present application have at least the following beneficial effects: in the above technical scheme, after the control mechanism controls the conveying mechanism to transfer the RAP material from the RAP material hot air drying drum to the microwave heating regeneration box, when the RAP material does not need microwave heating, the control mechanism controls the first material baffle plate to open and the second material baffle plate to close, and at the same time, the control mechanism controls the horizontal conveyor belt to convey in reverse, so that the horizontal conveyor belt conveys the RAP material that falls into the microwave heating regeneration box to the discharge trough and directly enters the next process.
[0013] When the RAP material needs to be heated, the control mechanism controls the conveying mechanism to transfer the RAP material from the RAP material hot air drying drum to the microwave heating regeneration box, and then heats the RAP material through the microwave heating regeneration box. When the heating is completed, the control mechanism controls the first material baffle to close and the second material baffle to open. At the same time, the control mechanism controls the horizontal conveyor belt to convey in the forward direction, so that the horizontal conveyor belt conveys the RAP material that falls into the microwave heating regeneration box to the conveying channel, so that the RAP material passes through the conveying channel and enters the hot RAP material temporary storage bin.
[0014] When the RAP mix in the microwave-heated regeneration tank is not properly proportioned, this regenerated asphalt mixing plant uses a control mechanism to discharge the RAP in the microwave-heated regeneration tank through a discharge chute to the next process, reducing labor costs and improving discharge efficiency. Furthermore, the application uses microwave heating to prevent overheating and aging of the RAP. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present application is further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a structural diagram of a recycled asphalt mixing plant provided in an embodiment of the present application;
[0017] Figure 2 yes Figure 1 Schematic diagram of the interior of the microwave heating regeneration box in the embodiment shown. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.
[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0020] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0021] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.
[0022] In the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0023] Asphalt mixing plants are essential facilities that play a crucial role in road construction. Currently, while these plants are capable of heating and drying recycled asphalt mix (RAP) to effectively utilize waste asphalt road materials, their heaters are typically limited to traditional direct flame heating or indirect heaters.
[0024] In addition, since the RAP material batching silo is dynamically batched during operation, the RAP material mixing ratio may be unsuitable during operation. For example, the material in some silos is used up and not replenished in time. In this case, the RAP material with an unsuitable ratio that has been transferred to the heater needs to be poured out, otherwise the processed recycled asphalt mixture cannot be used. Existing mixing plants usually use manual methods to remove the RAP material that does not meet the ratio from the heater, but this method is inefficient and has high labor costs.
[0025] Reference Figure 1 、 Figure 2 The present application provides a recycled asphalt mixing station, including a RAP material batching bin 1, a RAP material conveyor 2, a continuous mixer 3, a RAP material elevator 4, a RAP material hot air drying drum 5, a hot RAP material temporary storage bin 6, a mixing tank 9 and a microwave heating regeneration box 7. The RAP material conveyor 2 is connected to the RAP material batching bin 1 and the continuous mixer 3, the continuous mixer 3 is connected to the RAP material elevator 4, the RAP material hot air drying drum 5 is connected to the RAP material elevator 4, the hot RAP material temporary storage bin 6 is connected to the bottom of the RAP material hot air drying drum 5, the mixing tank 9 is connected to the bottom of the hot RAP material temporary storage bin 6, the microwave heating regeneration box 7 is arranged on the side of the RAP material hot air drying drum 5 and the hot RAP material temporary storage bin 6, and the bottom of the microwave heating regeneration box 7 is provided with a discharge chute 7 0, a first baffle is provided at a position corresponding to the discharge chute 70 inside the microwave heating regeneration box 7, the microwave heating regeneration box 7 is connected to the RAP material hot air drying drum 5 through a conveying mechanism 71, and the microwave heating regeneration box 7 is connected to the hot RAP material temporary storage bin 6 through a conveying channel 72, a second baffle is provided at a position corresponding to the conveying channel 72 inside the microwave heating regeneration box 7, a horizontal conveyor belt 73 is provided at the bottom of the microwave heating regeneration box 7, and the two ends of the horizontal conveyor belt 73 correspond to the discharge chute 70 and the conveying channel 72 respectively, and a control mechanism is provided on one side of the microwave heating regeneration box 7, the control mechanism is used to control the opening or closing of the first baffle and the second baffle, the control mechanism is used to control the forward or reverse conveying of the horizontal conveyor belt 73, and the control mechanism is used to control the start or stop of the conveying mechanism 71.
[0026] After the control mechanism controls the conveying mechanism 71 to transfer the RAP material from the RAP material hot air drying drum 5 to the microwave heating regeneration box 7, when the RAP material ratio is not suitable and microwave heating is not required, the control mechanism controls the first baffle plate to open and the second baffle plate to close. At the same time, the control mechanism controls the horizontal conveyor belt 73 to convey in reverse, so that the horizontal conveyor belt 73 conveys the RAP material that falls into the microwave heating regeneration box 7 to the discharge trough 70 for direct delivery to the next process.
[0027] When heating is required, the control mechanism controls the conveying mechanism 71 to transfer the RAP material from the RAP material hot air drying drum 5 to the microwave heating regeneration box 7, and the microwave heating regeneration box 7 heats the RAP material. When the heating is completed, the control mechanism controls the first baffle to close and the second baffle to open. At the same time, the control mechanism controls the horizontal conveyor belt 73 to convey in the forward direction, so that the horizontal conveyor belt 73 conveys the RAP material that has fallen into the microwave heating regeneration box 7 to the conveying channel 72, and then enters the hot RAP material temporary storage bin 6 through the conveying channel. This regenerated asphalt mixing plant can discharge the RAP material in the microwave heating regeneration box 7 through the control mechanism, which is more efficient and has lower labor costs. In addition, using microwaves to heat the RAP material can prevent the RAP material from overheating and aging.
[0028] It should be noted that, in the present application, forward conveying of the horizontal conveyor belt 73 is conveying to the right, and reverse conveying of the horizontal conveyor belt 73 is conveying to the left.
[0029] In some embodiments, the transport mechanism 71 is a conveyor belt.
[0030] Specifically, one end of the conveying mechanism 71 is connected to the bottom of the RAP material hot air drying drum 5, and the other end is connected to the top of the microwave heating regeneration box 7. The conveyor belt is used to realize the transmission of RAP material between the RAP material hot air drying drum 5 and the microwave heating regeneration box 7, and the amount of material during the transmission process can be effectively controlled.
[0031] In some embodiments, one end of the conveying channel 72 is connected to the bottom of the microwave heating regeneration box 7, and the other end is connected to the top of the hot RAP material temporary storage bin 6.
[0032] In some embodiments, the first baffle plate is installed inside the microwave heating regeneration box 7 through a first lifting motor, and the second baffle plate is installed inside the microwave heating regeneration box 7 through a second lifting motor.
[0033] The control mechanism is a control box installed on one side of the microwave heating regeneration box 7. A PCB control board is arranged inside the control box. The PCB control board is connected to the conveying mechanism 71 through a wire. The PCB control board is connected to the first lifting motor that controls the first baffle plate through a wire. The PCB control board is connected to the second lifting motor that controls the second baffle plate through a wire.
[0034] During operation, the PCB control board controls the conveying mechanism 71 to continue operating so that the RAP material enters the microwave heating regeneration box 7 .
[0035] When the control box receives an instruction that the RAP material does not need to be microwaved, it will transmit a signal to the PCB control board. The PCB control board will control the first baffle plate in the discharge chute 70 to open and the second baffle plate to close according to the signal. At the same time, the PCB control board will control the horizontal conveyor belt 73 to reverse and transport the RAP material to the discharge chute 70 according to the signal.
[0036] When the control box receives the instruction to microwave heat the RAP material, it will transmit the signal to the PCB control board. The PCB control board will control the first baffle plate to close and the second baffle plate to open according to the signal. After the RAP material is heated, the PCB control board controls the horizontal conveyor belt 73 to transport in the forward direction to deliver the heated RAP material to the hot RAP material temporary storage bin 6 through the conveying channel 72.
[0037] In some embodiments, a RAP material weighing and metering bin 8 is provided below the hot RAP material temporary storage bin 6, and the RAP material weighing and metering bin 8 is connected to the hot RAP material temporary storage bin 6 and the mixing tank 9. The RAP material weighing and metering bin 8 is used to weigh and meter the hot RAP material.
[0038] In some embodiments, a finished product temporary storage bin 10 is provided below the mixing tank 9, and the finished product temporary storage bin 10 is communicated with the mixing tank 9. The mixing tank 9 is used to stir the heated RAP material.
[0039] In some embodiments, the recycled asphalt mixing plant further includes a first support 11, on which the RAP material hot air drying drum 5, the hot RAP material temporary storage bin 6, the RAP material weighing and metering bin 8, the mixing tank 9, and the finished material temporary storage bin 10 are layered from top to bottom. This allows for a compact overall structure and minimizes space usage.
[0040] In some embodiments, the recycled asphalt mixing plant further includes a second bracket 12 , and the microwave heating regeneration box 7 is fixed on the second bracket 12 .
[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0042] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.
Claims
1. A recycled asphalt mixing plant, characterized in that: The invention comprises a RAP material batching bin, a RAP material conveyor, a continuous mixer, a RAP material elevator, a RAP material hot air drying drum, a hot RAP material temporary storage bin, a stirring cylinder and a microwave heating regeneration box, wherein the RAP material conveyor is connected to the RAP material batching bin and the continuous mixer, the continuous mixer is connected to the RAP material elevator, the RAP material hot air drying drum is connected to the RAP material elevator, the hot RAP material temporary storage bin is connected to the bottom of the RAP material hot air drying drum, the stirring cylinder is connected to the bottom of the hot RAP material temporary storage bin, the microwave heating regeneration box is arranged on the side of the RAP material hot air drying drum and the hot RAP material temporary storage bin, the bottom of the microwave heating regeneration box is provided with a discharge chute, and the microwave heating regeneration box A first baffle is provided at a position corresponding to the discharge chute inside the microwave heating regeneration box, the microwave heating regeneration box is connected to the RAP material hot air drying drum through a conveying mechanism, the microwave heating regeneration box is connected to the hot RAP material temporary storage bin through a conveying channel, a second baffle is provided at a position corresponding to the conveying channel inside the microwave heating regeneration box, a horizontal conveyor belt is provided at the bottom of the microwave heating regeneration box, the two ends of the horizontal conveyor belt correspond to the discharge chute and the conveying channel respectively, a control mechanism is provided on one side of the microwave heating regeneration box, the control mechanism is used to control the opening or closing of the first baffle and the second baffle, the control mechanism is used to control the forward or reverse conveying of the horizontal conveyor belt, and the control mechanism is used to control the start or stop of the conveying mechanism.
2. The recycled asphalt mixing plant according to claim 1, characterized in that: The first baffle plate is installed inside the microwave heating regeneration box through a first lifting motor, and the second baffle plate is installed inside the microwave heating regeneration box through a second lifting motor.
3. The recycled asphalt mixing plant according to claim 1, characterized in that: The conveying mechanism is a conveyor belt.
4. The recycled asphalt mixing plant according to claim 1, characterized in that: A RAP material weighing and metering bin is provided below the hot RAP material temporary storage bin, and the RAP material weighing and metering bin is connected to the hot RAP material temporary storage bin and the stirring tank.
5. The recycled asphalt mixing plant according to claim 4, characterized in that: A finished material temporary storage bin is provided below the mixing tank and is communicated with the mixing tank.
6. The recycled asphalt mixing plant according to claim 5, characterized in that: The recycled asphalt mixing station also includes a first bracket, and the RAP material hot air drying drum, hot RAP material temporary storage bin, RAP material weighing and metering bin, mixing tank and finished material temporary storage bin are layered from top to bottom on the first bracket.
7. The recycled asphalt mixing plant according to claim 1, characterized in that: The regenerated asphalt mixing station also includes a second bracket, and the microwave heating regeneration box is fixed on the second bracket.