Environment-friendly asphalt concrete production line asphalt waste temporary storage device and method

Abstract

The present application relates to the technical field of environment-friendly asphalt aggregate adding storage device, in particular to an environment-friendly asphalt aggregate temporary storage device and method in an asphalt concrete production line, which comprises a box body, the box body is arranged obliquely, a feeding hopper is fixedly installed on the upper side of the box body near one end, a discharging hopper is fixedly installed on the other end of the box body, a rotating shaft is rotatably installed at the axial position of the box body, a driving assembly is arranged on the rotating shaft near one end of the box body, and a mixing assembly is arranged on the rotating shaft near the other end of the box body. The driving assembly is driven to rotate by the self-gravity of the asphalt aggregate during the temporary storage of the material, the rotating shaft and the mixing assembly are driven by the driving assembly to be intermittently and gently turned over, the static accumulation state of the material is effectively broken, and the phenomena of segregation and caking are fundamentally prevented.

Description

Technical Field

[0001] This invention relates to the technical field of environmentally friendly asphalt aggregate addition and storage devices, specifically to an asphalt waste temporary storage device and method in an environmentally friendly asphalt concrete production line. Background Technology

[0002] The recycling and reuse of asphalt pavement materials is an important measure for building a resource-saving and environmentally friendly society. In the production line of environmentally friendly asphalt concrete, recycled asphalt is crushed and screened, and then mixed into fresh asphalt mixture as recycled aggregate, which can effectively reduce raw material consumption and waste emissions.

[0003] However, before the crushed asphalt waste is fed into the production tower, excess crushed asphalt waste needs to be produced to accommodate fluctuations that may occur during the addition of asphalt aggregate. If the asphalt waste is temporarily stored statically, it is highly susceptible to segregation due to the uneven particle size and density, leading to uncontrolled gradation of the mixture and affecting its final road performance.

[0004] Secondly, asphalt itself is viscous. Under unsuitable temperature and humidity conditions, waste materials are prone to sticking together into lumps, which not only makes subsequent transportation and metering difficult, but may also form hard lumps in the mixture that are difficult to disperse, becoming a potential quality hazard.

[0005] In view of this, we propose a temporary storage device and method for asphalt waste in an environmentally friendly asphalt concrete production line. Summary of the Invention

[0006] The purpose of this invention is to provide a temporary storage device and method for asphalt waste in an environmentally friendly asphalt concrete production line, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A temporary storage device for asphalt waste in an environmentally friendly asphalt concrete production line includes a box body, which is inclined. A feed hopper is fixedly installed at one end of the box body's surface, and a discharge hopper is fixedly installed at the other end. A rotating shaft is rotatably mounted at the center of the box body. A drive assembly is mounted on the rotating shaft at one end of the box body, and a mixing assembly is mounted on the rotating shaft at the other end of the box body. A connecting assembly is mounted on the rotating shaft between the drive assembly and the mixing assembly.

[0008] Preferably, the drive assembly includes a rotating blade, which is fixedly connected to a rotating shaft, and the rotating blade consists of three blades.

[0009] Preferably, the surface of the blade is inclined, and a counterweight is fixedly installed on one side of the inclined surface near the edge.

[0010] Preferably, the mixing assembly includes multiple mounting columns arranged in an array. The mounting columns are fixedly mounted on a rotating shaft. Multiple material-turning plates are fixedly mounted on the same column of mounting columns, and multiple material-discharging strips are fixedly mounted on the surface of the material-turning plates.

[0011] Preferably, the flipping plate has a triangular structure in one projection direction, and the flipping plate is in contact with the inside of the box.

[0012] Preferably, the connecting assembly includes a mounting ring, which is rotatably connected to a rotating shaft. A reinforcing frame is fixedly mounted on the outer surface of the mounting ring, and the reinforcing frame is fixedly connected to the inner wall of the housing. A baffle is fixedly mounted inside the reinforcing frame, and the baffle has multiple through holes. A connecting groove is provided at the bottom end of the reinforcing frame.

[0013] Preferably, an air inlet pipe is fixedly installed at the bottom of the box, the air inlet pipe is connected to a heating fan, three air outlet pipes are fixedly installed at the top of the box, the three air outlet pipes are distributed in a circular array, and a temperature and humidity sensor is installed inside the box.

[0014] Preferably, the heating fan is electrically connected to the temperature and humidity sensor, and the air volume and temperature of the heating fan are controlled by the data from the temperature and humidity sensor.

[0015] Preferably, the discharge hopper is equipped with a metering valve.

[0016] This invention also provides a method for temporary storage of asphalt waste in an environmentally friendly asphalt concrete production line, comprising the following steps: Step 1: Pre-treatment. Based on the production schedule, start the heating fan 30-60 minutes in advance to clean and preheat the inside of the chamber. Step 2: Orderly feeding. When there is material in the storage warehouse, first add the material in the storage warehouse into the box through the feeding hopper; when there is no material in the storage warehouse, add the asphalt waste crushed by the jaw crusher into the box through the feeding hopper. Step 3: Temporary storage and mixing. When the asphalt waste enters the drive assembly, it drives the rotating blades to rotate, thus allowing the asphalt waste to enter the mixing assembly through the connecting assembly. The entry of the asphalt waste also drives the drive assembly to work, thereby driving the rotating shaft and the mixing assembly to work, realizing the turning of the asphalt waste, and then outputting the asphalt waste through the discharge hopper. Step 4: Unloading and Shutting Down. After the production plan is completed, discharge the remaining crushed asphalt waste from the tank through the discharge hopper. After discharge, shut down the equipment.

[0017] By employing the above technical solution, the present invention provides a temporary storage device and method for asphalt waste in an environmentally friendly asphalt concrete production line, which has at least the following beneficial effects: (1) By setting a rotating shaft, a driving component, a connecting component and a mixing component inside the box, the present invention utilizes the gravity of the asphalt waste to drive the driving component to rotate during the temporary storage of materials. The driving component drives the rotating shaft and the mixing component to intermittently and gently turn over, effectively breaking the static accumulation state of the materials, thereby fundamentally preventing segregation and agglomeration.

[0018] (2) By setting up an air inlet pipe, an air outlet pipe, a heating fan and a temperature and humidity sensor, the present invention can automatically adjust the environment inside the warehouse, avoid moisture retention leading to adhesion or improper temperature causing asphalt aging, and ensure the stability of the physical properties of the material during temporary storage.

[0019] (3) The present invention realizes the functions of temporary storage, mixing, drying and quantitative output through the whole device. Furthermore, by using the resistance of the weight of asphalt waste to the mixing component, combined with the quantitative discharge of the metering valve and the stable feeding of the feeding hopper, the resistance of the material level in the mixing component and the dynamic balance of the material weight of the driving component are formed to achieve the intermittent rotation of the rotating shaft. This realizes the automatic coordination and continuous operation of asphalt waste from feeding, mixing and discharging, and improves the continuity of asphalt waste supply and the stability of asphalt waste quality. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the box body and its connecting parts of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the cross-sectional structure of the box body of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the overall structure of the drive component of the present invention; Figure 6 This is a schematic diagram of the connection components and housing structure of the present invention; Figure 7 This is a schematic diagram of the overall structure of the mixing assembly of the present invention; Figure 8 This is an enlarged structural schematic diagram of the mixing assembly of the present invention; Figure 9 This is a schematic diagram of the workflow of the present invention.

[0021] In the diagram: 1. Box body; 2. Feed hopper; 3. Discharge hopper; 4. Metering valve; 5. Air inlet pipe; 6. Air outlet pipe; 7. Mobile conveyor; 8. Main conveyor belt; 9. Feed conveyor belt; 10. Rotating shaft; 11. Drive assembly; 111. Rotating blade; 112. Blade; 113. Counterweight; 12. Connecting assembly; 121. Reinforcing frame; 122. Mounting ring; 123. Baffle; 124. Connecting groove; 13. Mixing assembly; 131. Mounting column; 132. Tilting plate; 133. Discharging strip. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-8 A temporary storage device for asphalt waste in an environmentally friendly asphalt concrete production line includes a box 1. The box 1 is cylindrical in shape and installed at an angle of 10-30 degrees. If the angle of inclination is too small, the crushed asphalt waste will have difficulty moving and conveying along the inside of the box 1 under gravity, resulting in adhesion to the walls and difficulty in material discharge. If the angle of inclination is too large, the crushed asphalt waste will accumulate rapidly at the bottom of the box 1, easily causing the crushed asphalt waste to clump and become difficult to turn over.

[0024] Please see Figure 1 A feed hopper 2 is fixedly installed at one end of the surface of the housing 1 for feeding crushed asphalt waste. Two feed conveyor belts 9 are installed above the feed hopper 2, with the other ends of the two conveyor belts 9 connected to a jaw crusher and a storage warehouse, respectively, for transporting the crushed asphalt waste. It is important to note that when there is crushed asphalt waste in the storage warehouse, the asphalt waste in the storage warehouse should be transported and used first to avoid segregation, clumping, and other adverse effects on the performance of the asphalt waste due to prolonged storage.

[0025] Based on this, a discharge hopper 3 is fixedly installed at the other end of the housing 1. A metering valve 4 is installed on the discharge hopper 3. The metering valve 4 can be a pneumatic butterfly valve or an impeller feeder. The metering valve 4 controls the discharge speed and weight of the discharge hopper 3, thereby controlling the feeding rate. Furthermore, a mobile conveyor 7 is installed at the bottom of the discharge hopper 3. The other side of the mobile conveyor 7 is connected to a main conveyor belt 8 or a storage warehouse. When the mobile conveyor 7 is connected to the main conveyor belt 8, the asphalt waste in the housing 1 can be transported to the asphalt concrete production tower for addition as raw material. When the mobile conveyor 7 is connected to the storage warehouse, the asphalt waste crushed by the jaw crusher can be stored, or excess asphalt waste crushed during production can be transferred and stored, preventing the asphalt waste from accumulating inside the housing 1.

[0026] Please see Figure 4 and Figure 5 A rotating shaft 10 is rotatably mounted on the central axis inside the housing 1. A drive assembly 11 is provided on the higher end of the rotating shaft 10, which is used to temporarily store the asphalt waste and use the gravity of the asphalt waste to drive the rotating shaft 10 to rotate.

[0027] Please see Figure 5 The drive assembly 11 includes a rotating blade 111, which is fixedly connected to the rotating shaft 10. The rotating blade 111 consists of three blades 112, the surfaces of which are inclined, and the inclination direction of the blades 112 is from the top to the bottom of the rotating shaft 10. Combined with the inclined design of the housing 1 itself, this causes the asphalt waste, when falling onto the blades 112 of the rotating blade 111 through the feed hopper 2, to accumulate along the inclination angle of the blades 112 towards the side away from the top of the housing 1. When the asphalt waste accumulates to a certain weight, it overcomes the friction between the rotating shaft 10 and the rotating blade 111 and the inner wall of the housing 1, thereby causing the rotating blade 111 to rotate and drive the rotating shaft 10 to rotate.

[0028] In addition, a counterweight 113 is fixedly installed on one side of the inclined surface of the blade 112 near the edge, so that the center of gravity of the blade 112 is biased towards the edge, thereby reducing the weight required for the blade 112 to rotate and enhancing the sensitivity of the blade 112 when rotating.

[0029] Please see Figure 3 , Figure 7 and Figure 8 A mixing component 13 is provided at the lower end of the surface of the rotating shaft 10 to turn the asphalt waste over and avoid segregation, clumping and other phenomena that may occur when the asphalt waste is piled up.

[0030] Please see Figure 7The mixing assembly 13 includes multiple mounting posts 131, which are fixedly mounted on the rotating shaft 10, allowing the posts 131 to rotate synchronously with the shaft 10. The multiple mounting posts 131 are arranged in an array, preventing any shift in the axis of rotation and ensuring greater stability during rotation. Furthermore, multiple tipping plates 132 are fixedly mounted on the same row of mounting posts 131, arranged in an array. These tipping plates 132 can tip the asphalt waste as they rotate with the shaft 10. The tipping plates 132 have a triangular structure in one projection direction, allowing them to scoop the asphalt waste during rotation and reducing resistance during tipping. Multiple loosening strips 133 are fixedly mounted on the surface of the tipping plates 132, also arranged in an array, to disperse the asphalt waste and improve the mixing effect. The material-turning plate 132 is in contact with the inside of the box 1, so that the material-turning plate 132 can turn the bottom of the asphalt waste, avoiding the bottom of the asphalt waste from being compacted and causing caking.

[0031] Please see Figure 3 and Figure 6 A connecting component 12 is provided on the rotating shaft 10 between the drive component 11 and the mixing component 13. This component is used to separate and connect the drive component 11 and the mixing component 13, promote the rotation of the drive component 11, and control the feed rate of the mixing component 13.

[0032] Please see Figure 6 The connecting assembly 12 includes a mounting ring 122, which is rotatably connected to the rotating shaft 10. This ensures that the mounting ring 122 does not affect the rotation of the rotating shaft 10 and provides good support for the middle section of the rotating shaft 10. A reinforcing frame 121 is fixedly mounted on the outer surface of the mounting ring 122. The reinforcing frame 121 is fixedly connected to the inner wall of the housing 1, making the reinforcing frame 121, the mounting ring 122, and the housing 1 a whole, thus enhancing stability. The reinforcing frame 121 is used to enhance the stability of the entire connecting assembly 12 and reduce the possibility of deformation damage when impacted by asphalt waste. A baffle 123 is fixedly mounted inside the reinforcing frame 121. The baffle 123 is located inside the upper part of the housing 1 and is used to cooperate with the rotating blade 111 to block the asphalt waste, so that the asphalt waste is stably accumulated on one side of the rotating blade 111, facilitating the rotation of the rotating blade 111 by the asphalt waste.

[0033] Based on this, a connecting groove 124 is provided at the bottom of the reinforcing frame 121 to connect the drive assembly 11 and the mixing assembly 13, and to transport the asphalt waste on the rotating blade 111 to the mixing assembly 13 through the connecting groove 124.

[0034] It is worth noting that when there is a certain amount of asphalt waste in the mixing assembly 13, the asphalt waste will generate a certain resistance to the mixing assembly 13, thereby increasing the force required for the rotating shaft 10 to rotate. This resistance and the weight of the asphalt waste in the mixing assembly 13 have a certain functional relationship, which conforms to a lag-growth function. This means that the more asphalt waste in the mixing assembly 13, the greater the resistance that needs to be overcome, resulting in more asphalt waste accumulating on the rotating blade 111. Simultaneously, due to the continuous discharge from the discharge hopper 3, the weight of the asphalt waste in the mixing assembly 13 undergoes a cycle of increase, decrease, and increase. When the weight of the asphalt waste increases, the resistance of the mixing assembly 13 is greater, making it difficult for the rotating blade 111 to rotate. When the weight decreases due to the discharge of asphalt waste, the continuous accumulation of asphalt waste on the rotating blade 111 makes its weight sufficient to drive the rotating blade 111 to rotate, thus replenishing and mixing the mixing assembly 13, reducing the weight of the asphalt waste on the rotating blade 111, and increasing the weight of the asphalt waste in the mixing assembly 13. The above steps enable intermittent rotation of the rotating shaft, thereby achieving intermittent feeding and mixing of asphalt waste.

[0035] Please see Figures 1-3 An air inlet pipe 5 is fixedly installed at the bottom of the housing 1, and an air outlet pipe 6 is fixedly installed at the top of the housing 1. There are three air outlet pipes 6 arranged in a circular array, so that the air outlet pipes 6 can stably exhaust air into the space formed by the three blades 112 and the inner wall of the housing 1. In addition, both the air inlet pipe 5 and the air outlet pipe 6 are equipped with filters to prevent asphalt waste from escaping.

[0036] In addition, an air inlet pipe 5 is connected to a heating fan, which provides stable, dry hot air into the chamber 1 through the air inlet pipe 5. Multiple through holes are provided on the baffle 123 to allow hot air to circulate, thus blowing hot air through the asphalt waste inside the chamber 1 to prevent moisture-induced adhesion and high-temperature-induced asphalt aging. Simultaneously, multiple temperature and humidity sensors are installed inside the chamber 1, and these sensors are electrically connected to the heating fan. Controlled by a PLC, the temperature and humidity sensors can regulate the airflow and temperature of the hot air provided by the heating fan, thereby maintaining the temperature and humidity within the chamber 1 within a certain range. This prevents excessive humidity from causing asphalt waste adhesion and excessively high temperatures from causing rapid asphalt waste aging.

[0037] It should be noted that the mixing component 13 can increase the contact area between the asphalt waste and the circulating hot air, thereby quickly controlling the temperature and humidity of the asphalt waste surface and improving the stability of the asphalt waste during temporary storage.

[0038] Please see Figure 9 A method for temporary storage of asphalt waste in an environmentally friendly asphalt concrete production line, the working steps and principle of which are as follows: Step 1: Pre-treatment. Based on the production task schedule, start the heating fan 30-60 minutes in advance. The temperature and air volume of the heating fan are controlled by the temperature and humidity sensor and PLC. Dry hot air enters the chamber 1 through the air inlet pipe 5 and is discharged through the air outlet pipe 6, thereby cleaning the inside of the chamber 1 and stabilizing the temperature and humidity. Step 2: Orderly feeding. When there is material in the storage warehouse, the material in the storage warehouse is added to the box 1 through the feeding conveyor belt 9 and the feeding hopper 2. When there is no material in the storage warehouse, the raw material of asphalt waste is crushed by a jaw crusher and then added to the box 1 through the feeding conveyor belt 9 and the feeding hopper 2. Using the stored materials first is to avoid storing materials for a long time, achieving the effect of crushing and using them first, and avoiding excessive storage time.

[0039] Step 3: Temporary Storage and Mixing. When the asphalt waste enters the drive assembly 11, under the combined action of gravity, the inclination of the housing 1, and the inclined surface of the blade 112, the asphalt waste accumulates along the inclined surface of the blade 112 on one side of the blade 112. The counterweight 113 at the edge of the blade 112 causes the rotating blade 111 to rotate in one direction under the gravity of the asphalt waste until the blade 112 of the rotating blade 111 connects with the connecting groove 124. Under gravity, the asphalt waste enters the mixing assembly 13 through the connecting groove 124. When the weight of the asphalt waste is low, the resistance it generates to the mixing assembly 13 is negligible. However, when the asphalt waste in the mixing assembly 13 reaches a certain weight, the resistance increases significantly. At this point, the rotating blade 111 needs to overcome increased rotational resistance until it jams. Before the resistance increases to the point of jamming the rotating shaft 10, the rotation of the rotating blade 111 is intermittent, and the interval between these intervals gradually increases. When the rotating blade 111 rotates, it will drive the mixing component 13 to rotate synchronously, so that the turning plate 132 and the unloading strip 133 can turn and mix the asphalt waste.

[0040] The discharge speed and weight of the discharge hopper 3 are controlled by the metering valve 4. The asphalt waste is transported to the asphalt concrete production tower via the mobile conveyor 7 and the main conveyor belt 8. After the metering valve 4 is opened, the asphalt waste in the mixing assembly 13 is discharged through the discharge hopper 3, thus reducing the weight of the asphalt waste in the mixing assembly 13. The discharge from the discharge hopper 3 is continuous according to the production of asphalt concrete, ensuring a continuous discharge of asphalt waste. The reduced weight of the asphalt waste in the mixing assembly 13 decreases the rotational resistance of the asphalt waste to the rotating shaft 10, reducing the weight of asphalt waste required to drive the rotating blade 111, thus enabling intermittent rotation of the rotating blade 111. When the rotating blade 111 rotates, it introduces new asphalt waste into the asphalt waste in the mixing assembly 13, thus mixing the asphalt waste. Simultaneously, the rotation of the mixing assembly 13 pushes the asphalt waste towards the discharge hopper 3, enhancing the stability of the discharge.

[0041] Through the above operations, the feeding and discharging of asphalt waste are stably coordinated. At the same time, the weight of the asphalt waste conveying is used to achieve intermittent rotation of the rotating shaft 10, so that the mixing component 13 can mix the asphalt waste and enhance the quality stability of the asphalt waste.

[0042] Step 4: Unloading and Shutting Down. After the production plan is completed, first close the jaw crusher and metering valve 4, then move the mobile conveyor 7 and align the other end of the mobile conveyor 7 with the open space of the storage warehouse. Then open the metering valve 4 to the maximum to transport the remaining crushed asphalt waste in the box 1 to the storage warehouse for storage. After unloading is completed, shut down the heating fan.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temporary storage device for asphalt waste in an environmentally friendly asphalt concrete production line, characterized in that, The device includes a housing (1), which is inclined. A feed hopper (2) is fixedly installed on one end of the surface of the housing (1), and a discharge hopper (3) is fixedly installed on the other end of the housing (1). A rotating shaft (10) is rotatably installed at the axial position inside the housing (1). A drive assembly (11) is provided on the rotating shaft (10) near one end of the housing (1), and a mixing assembly (13) is provided on the rotating shaft (10) near the other end of the housing (1). A connecting assembly (12) is provided on the rotating shaft (10) between the drive assembly (11) and the mixing assembly (13).

2. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that, The drive assembly (11) includes a rotating blade (111), which is fixedly connected to the rotating shaft (10). The rotating blade (111) consists of three blades (112).

3. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 2, characterized in that, The surface of the blade (112) is inclined, and a counterweight (113) is fixedly installed on one side of the inclined surface of the blade (112) near the edge.

4. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that, The mixing component (13) includes multiple mounting columns (131), which are arranged in an array. The mounting columns (131) are fixedly mounted on the rotating shaft (10). Multiple turning plates (132) are fixedly mounted on the same column of mounting columns (131), and multiple material unloading strips (133) are fixedly mounted on the surface of the turning plates (132).

5. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 4, characterized in that, The flip plate (132) has a triangular structure in one projection direction, and the flip plate (132) is in contact with the inside of the box (1).

6. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that, The connecting assembly (12) includes a mounting ring (122), which is rotatably connected to the rotating shaft (10). A reinforcing frame (121) is fixedly mounted on the outer surface of the mounting ring (122). The reinforcing frame (121) is fixedly connected to the inner wall of the housing (1). A baffle (123) is fixedly mounted inside the reinforcing frame (121). Multiple through holes are provided on the baffle (123). A connecting groove (124) is provided at the bottom of the reinforcing frame (121).

7. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that, An air inlet pipe (5) is fixedly installed at the bottom of the box (1), and a heating fan is connected to the air inlet pipe (5). Three air outlet pipes (6) are fixedly installed at the top of the box (1). The three air outlet pipes (6) are arranged in a circular array. A temperature and humidity sensor is installed inside the box (1).

8. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 7, characterized in that, The heating fan is electrically connected to the temperature and humidity sensor, and the air volume and temperature of the heating fan are controlled by the data from the temperature and humidity sensor.

9. The asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line according to claim 1, characterized in that, The discharge hopper (3) is equipped with a metering valve (4).

10. A method for temporarily storing asphalt waste in an environmentally friendly asphalt concrete production line, used in the asphalt waste temporary storage device in an environmentally friendly asphalt concrete production line as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Pre-treatment. Based on the production task time, start the heating fan 30-60 minutes in advance to clean and preheat the inside of the box (1). Step 2: Orderly feeding. When there is material in the storage warehouse, the material in the storage warehouse is first added into the box (1) through the feeding hopper (2); when there is no material in the storage warehouse, the asphalt waste crushed by the jaw crusher is added into the box (1) through the feeding hopper (2). Step 3: Temporary storage and mixing. When the asphalt waste enters the drive assembly (11), it drives the rotating blade (111) to rotate, thereby allowing the asphalt waste to enter the mixing assembly (13) through the connecting assembly (12). The entry of the asphalt waste also drives the drive assembly (11) to work, thereby driving the rotating shaft (10) to rotate and the mixing assembly (13) to work, realizing the turning of the asphalt waste, and then outputting the asphalt waste through the discharge hopper (3); Step 4: Unloading and shutting down. After the production plan is completed, the remaining crushed asphalt waste in the box (1) is discharged through the discharge hopper (3). After the discharge is complete, the equipment is shut down.

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