Asphalt mixture blanking temperature control device

Abstract

The utility model discloses an asphalt mixture blanking temperature control device, and relates to the field of road engineering material preparation, a lifting driving mechanism is used for driving a stirring pot to move up and down, the stirring pot is positioned above a weighing component, a discharge port is arranged at the bottom of the stirring pot, a blanking opening and closing mechanism is used for opening or closing the discharge port, and the discharging opening and closing mechanism is used for opening or closing the discharge port. The heating temperature control mechanism comprises a first electric heating part, a first temperature sensing part and a first temperature controller, the first electric heating part is used for heating the asphalt mixture in the stirring pot, and the first temperature sensing part is used for monitoring the temperature of the asphalt mixture in the stirring pot; the first electric heating part and the first temperature sensing part are both connected with the first temperature controller; the upper part of the weighing part is used for placing a test mold, and the heating temperature control sleeve is used for sleeving the test mold and is used for heating and controlling the temperature of the test mold. According to the asphalt mixture blanking temperature control device, high-precision temperature management in the whole process from mixing to forming can be achieved, and the stability and consistency of the performance of the asphalt mixture are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road engineering material preparation field, in particular to a bituminous mixture discharging temperature control device. BACKGROUND

[0002] As a kind of key road-building material, the performance of bituminous mixture has decisive influence on the serviceability and service life of pavement. Asphalt is a temperature-sensitive material, especially high viscosity modified asphalt, so temperature control is crucial in the preparation process of bituminous mixture. However, in the preparation and molding process of bituminous mixture, there are the following problems: the precision of temperature control is insufficient, the existing bituminous mixture preparation equipment usually lacks accurate temperature control mechanism, which makes it difficult to maintain the temperature of bituminous mixture in the ideal range, and the inaccuracy of temperature control will directly affect the compactness of bituminous mixture, and then affect the effectiveness and reliability of subsequent test results. In addition, the actual temperature inside the material cannot be monitored in real time, especially when heating in the oven, the lack of real-time monitoring of the internal temperature of the material makes it difficult for the operator to accurately determine whether the material has reached the ideal temperature. In the process of taking bituminous mixture out of the mixing pot for molding, the temperature of the material will drop rapidly, especially for those bituminous mixtures with faster cooling speed, which may cause the temperature during molding to not meet the requirements, thereby affecting the quality of the final product. SUMMARY

[0003] To solve the above technical problems, the utility model provides a bituminous mixture discharging temperature control device, which can realize high-precision temperature management from mixing to molding, and significantly improve the stability and consistency of bituminous mixture performance.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] This utility model provides an asphalt mixture feeding temperature control device, including a base, a weighing component, a support frame, a lifting drive mechanism, a mixing pot, a stirring mechanism, a feeding opening and closing mechanism, a heating and temperature control mechanism, a heating and temperature control sleeve, and a control system. The weighing component and the support frame are both mounted on the base. The lifting drive mechanism is mounted on the support frame and is used to drive the mixing pot to move up and down. The mixing pot is located above the weighing component, and a discharge port is provided at the bottom of the mixing pot. The feeding opening and closing mechanism is used to open or close the discharge port. The heating and temperature control mechanism includes a first electric heating component and a first temperature sensing component. The system includes a first temperature controller, a first electric heating element for heating the asphalt mixture in the mixing pot, a first temperature sensing element for monitoring the temperature of the asphalt mixture in the mixing pot, and both the first electric heating element and the first temperature sensing element are connected to the first temperature controller. The upper part of the weighing component is used to place the test mold, and the heating and temperature control sleeve is used to cover the outside of the test mold and to heat and control the temperature of the test mold. The weighing component, the lifting drive mechanism, the stirring mechanism, the material feeding opening and closing mechanism, the first temperature controller, and the heating and temperature control sleeve are all connected to the control system.

[0006] Preferably, the support frame includes a top plate and two support columns. The lower parts of the two support columns are disposed on both sides of the upper part of the base, and the upper parts of the two support columns are respectively connected to both sides of the top plate. The lifting drive mechanism includes two lifting drive components, each of which is disposed inside one of the support columns. The two ends of the mixing pot are respectively installed on the two lifting drive components, and the lifting drive components are connected to the control system.

[0007] Preferably, the lifting drive assembly includes a drive component, a lead screw, a lead screw nut, and a lifting seat. A vertical groove is provided on the inner side of the support column. The lower end of the lead screw is rotatably mounted in the vertical groove. The drive component is located at the upper part of the vertical groove and connected to the upper end of the lead screw. The drive component is connected to the control system. The lead screw nut is mounted on the lead screw. The lifting seat is fixedly sleeved on the lead screw nut and slidably mounted in the vertical groove. An arc-shaped groove is provided on the upper part of the lifting seat. A protrusion is provided at both ends of the mixing pot. The lower part of the protrusion has an arc surface structure matching the arc-shaped groove structure. An operating lever is provided on the mixing pot.

[0008] Preferably, the stirring mechanism is a double planetary stirring mechanism.

[0009] Preferably, the feeding opening and closing mechanism includes a hydraulic rod, a bent rod, and a feeding valve plate. The hydraulic rod is disposed on one side of the lower part of the mixing pot. The end of the feeding valve plate near the hydraulic rod is hinged to the bottom of the mixing pot. The feeding valve plate can open or close the discharge port. One end of the bent rod is hinged to the lower end of the piston rod of the hydraulic rod, and the other end of the bent rod is hinged to the end of the feeding valve plate away from the hydraulic rod. The hydraulic rod is connected to the control system.

[0010] Preferably, it further includes an annular baffle, which is fixed to the bottom of the mixing pot and covers the outside of the feeding valve plate. The bottom of the annular baffle is provided with a clearance groove for accommodating the bent rod.

[0011] Preferably, the upper part of the weighing component is provided with a limiting groove, which is used to place the test mold and limit the position of the test mold.

[0012] Preferably, the mixing pot is provided with a first hollow jacket, the first electric heating component is disposed in the first hollow jacket, and the first temperature sensing component is disposed on the inner wall of the mixing pot.

[0013] Preferably, it further includes a heat-insulating sleeve, wherein the heating and temperature control sleeve is used to cover the lower part of the outside of the test mold, and the heat-insulating sleeve is used to cover the upper part of the outside of the test mold.

[0014] Preferably, the heating and temperature control sleeve includes a cylinder, an insulation layer, a second electric heating component, a second temperature sensing component, and a second temperature controller. The cylinder is used to be fitted over the outside of the test mold, the insulation layer is wrapped around the outside of the cylinder, the cylinder is provided with a second hollow interlayer, the second electric heating component and the second temperature sensing component are both disposed in the second hollow interlayer, the second electric heating component and the second temperature sensing component are both connected to the second temperature controller, and the second temperature controller is connected to the control system.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] The heating and temperature control mechanism of this utility model includes a first electric heating component, a first temperature sensing component, and a first temperature controller. The first electric heating component is used to heat the asphalt mixture in the mixing pot, and the first temperature sensing component is used to monitor the temperature of the asphalt mixture in the mixing pot. Both the first electric heating component and the first temperature sensing component are connected to the first temperature controller, thereby enabling the monitoring and precise control of the temperature of the asphalt mixture in the mixing pot. The upper part of the weighing component is used to place the test mold, and the heating and temperature control sleeve is used to cover the outside of the test mold and to heat and control the temperature of the test mold. During operation, after the asphalt mixture is stirred and heated in the mixing pot, it falls into the test mold. After the material is discharged, the test mold with the heating and temperature control sleeve can be directly placed into the molding machine for molding, ensuring that the temperature during molding meets the requirements. This allows the asphalt mixture to maintain a stable temperature from being taken out of the mixing pot to molding, thereby achieving high-precision temperature management throughout the entire process from mixing to molding, significantly improving the stability and consistency of the asphalt mixture performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the asphalt mixture feeding and temperature control device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the feeding opening and closing mechanism and the mixing pot without the annular baffle installed in the asphalt mixture feeding temperature control device provided by this utility model.

[0020] Figure 3 A schematic diagram of the structure of the asphalt mixture feeding temperature control device provided by this utility model, showing the feeding opening and closing mechanism and the mixing pot equipped with an annular baffle.

[0021] Figure 4 A schematic diagram of the weighing component in the asphalt mixture feeding and temperature control device provided by this utility model;

[0022] Figure 5 A schematic diagram of the weighing component, heating and temperature control sleeve, heat insulation sleeve, and base in the asphalt mixture feeding and temperature control device provided by this utility model.

[0023] Explanation of reference numerals in the attached drawings: 100, Asphalt mixture feeding temperature control device; 1, Base; 2, Support column; 3, Top plate; 4, Mixing pot; 5, Protrusion; 6, Operating lever; 7, Hydraulic rod; 8, Bent rod; 9, Feeding valve plate; 10, Annular baffle; 11, Clearance groove; 12, Weighing component; 13, Limiting groove; 14, Heating temperature control sleeve; 15, Heating power supply port; 16, Insulation sleeve; 17, Weight display screen; 18, Weight setting button matrix; 19, Automatic button; 20, Feeding start button; 21, Feeding stop button; 22, Temperature electronic display screen; 23, Temperature control multi-button interface; 24, Power supply port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The purpose of this invention is to provide a temperature control device for asphalt mixture feeding, which can achieve high-precision temperature management throughout the entire process from mixing to molding, and significantly improve the stability and consistency of asphalt mixture performance.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-5As shown, this embodiment provides an asphalt mixture feeding and temperature control device 100, including a base 1, a weighing component 12, a support frame, a lifting drive mechanism, a mixing pot 4, a mixing mechanism, a feeding opening and closing mechanism, a heating and temperature control mechanism, a heating and temperature control sleeve 14, and a control system. The weighing component 12 and the support frame are both mounted on the base 1. The lifting drive mechanism is mounted on the support frame and is used to drive the mixing pot 4 to move up and down. The mixing pot 4 is located above the weighing component 12 and is used to contain and mix the asphalt mixture. A discharge port is provided at the bottom of the mixing pot 4. The feeding opening and closing mechanism is used to open or close the discharge port. The heating and temperature control mechanism... The system includes a first electric heating element, a first temperature sensing element, and a first temperature controller. The first electric heating element is used to heat the asphalt mixture in the mixing pot 4, and the first temperature sensing element is used to monitor the temperature of the asphalt mixture in the mixing pot 4. Both the first electric heating element and the first temperature sensing element are connected to the first temperature controller. The upper part of the weighing element 12 is used to place the test mold, and the heating and temperature control sleeve 14 is used to cover the outside of the test mold and to heat and control the temperature of the test mold. The weighing element 12, the lifting drive mechanism, the stirring mechanism, the material feeding opening and closing mechanism, the first temperature controller, and the heating and temperature control sleeve 14 are all connected to the control system.

[0028] In this embodiment, the temperature of the asphalt mixture in the mixing pot 4 can be monitored and precisely controlled by a heating and temperature control mechanism. After the asphalt mixture is stirred and heated in the mixing pot 4, it falls into the mold. After the material is discharged, the mold with the heating and temperature control sleeve 14 can be directly placed into the molding machine for molding. This ensures that the asphalt mixture can maintain a stable temperature from the time it is taken out of the mixing pot 4 to the time it is molded, and that the temperature during molding meets the requirements. This enables high-precision temperature management throughout the entire process from mixing to molding, and significantly improves the stability and consistency of the asphalt mixture performance.

[0029] In this embodiment, a combination of a feeding opening and closing mechanism and a weighing component 12 is used to achieve precise automatic feeding. The operator can set the desired feeding weight through the control system, which will automatically control the feeding process until the preset weight is reached. This not only significantly improves the efficiency of specimen preparation but also reduces human error, ensuring the consistency and reliability of the test samples.

[0030] By combining precise asphalt mixture temperature control, mold temperature control, and high-precision automatic feeding functions, the problems existing in the current technology are effectively solved. It not only precisely controls the temperature throughout the entire preparation process and monitors temperature changes in real time, but also automatically and accurately feeds the mixture quantitatively, significantly improving the preparation quality, testing accuracy, and experimental efficiency of asphalt mixtures, providing strong technical support for the research and application of road engineering materials.

[0031] The support frame includes a top plate 3 and two support columns 2. The lower parts of the two support columns 2 are located on both sides of the upper part of the base 1, and the upper parts of the two support columns 2 are respectively connected to both sides of the top plate 3. The lifting drive mechanism includes two lifting drive components, each of which is located inside one of the support columns 2. The two ends of the mixing pot 4 are respectively installed on the two lifting drive components, and the lifting drive components are connected to the control system.

[0032] The lifting drive assembly includes a drive component, a lead screw, a lead screw nut, and a lifting seat. A vertical groove is provided on the inner side of the support column 2. The lower end of the lead screw is rotatably installed in the vertical groove. The drive component is located on the upper part of the vertical groove and connected to the upper end of the lead screw. The drive component is connected to the control system. The lead screw nut is installed on the lead screw. The lifting seat is fixedly sleeved on the lead screw nut and slidably installed in the vertical groove. An arc-shaped groove is provided on the upper part of the lifting seat. A protrusion 5 is provided at both ends of the mixing pot 4. The lower part of the protrusion 5 has an arc surface structure that matches the arc-shaped groove structure, allowing the mixing pot 4 to swing relative to the lifting seat. To facilitate the tilting of the mixing pot 4, an operating lever 6 is provided on the mixing pot 4. When loading the raw materials to be mixed, the operating lever 6 can be held to tilt the opening of the mixing pot 4 outwards to a suitable angle.

[0033] In this embodiment, the lifting drive assembly, consisting of a drive component, a lead screw, a lead screw nut, and a lifting seat, can achieve precise lifting and lowering of the mixing pot 4.

[0034] Specifically, the drive components include a lifting motor and a reducer, with the lifting motor connected to the lead screw via the reducer. The lifting motor provides power, and the reducer reduces the rotational speed and increases the torque to drive the lead screw to rotate.

[0035] In this specific embodiment, the mixing mechanism is a double planetary mixing mechanism. The mixing mechanism in this embodiment is driven by a drive motor. The double planetary mixing mechanism revolves and rotates within the mixing pot 4 to mix the asphalt mixture, and can employ both high-speed and low-speed mixing modes to ensure uniform temperature of the asphalt mixture.

[0036] During operation, firstly, preliminary mixing is carried out to ensure that all components are mixed evenly; secondly, after the preliminary mixing is completed, the mixing mechanism can continue to mix at a lower speed. The purpose of this process is to maintain the temperature consistency of each part of the asphalt mixture and ensure that the temperature of the material is evenly distributed throughout the mixing process.

[0037] like Figure 2As shown, the feeding opening and closing mechanism includes a hydraulic rod 7, a bent rod 8, and a feeding valve plate 9. The hydraulic rod 7 is located on one side of the lower part of the mixing pot 4. The end of the feeding valve plate 9 near the hydraulic rod 7 is hinged to the bottom of the mixing pot 4. The feeding valve plate 9 can open or close the discharge port. One end of the bent rod 8 is hinged to the lower end of the piston rod of the hydraulic rod 7, and the other end of the bent rod 8 is hinged to the end of the feeding valve plate 9 away from the hydraulic rod 7. The hydraulic rod 7 is connected to the control system.

[0038] The opening angle of the discharge valve plate 9 is controlled by the degree of retraction of the hydraulic rod 7. The discharge valve plate 9 is a circular plate with a diameter of 130mm. The maximum opening and closing angle of the discharge valve plate 9 is less than 60° to avoid pouring too much asphalt mixture per unit time, thereby improving the accuracy of the discharge weight.

[0039] like Figure 3 As shown, this embodiment also includes an annular baffle 10, which is fixed to the bottom of the mixing pot 4 and covers the outside of the feeding valve plate 9. The bottom of the annular baffle 10 is provided with a relief groove 11, which is used to accommodate the bent rod 8. That is, the relief groove 11 is used to avoid affecting the movement of the bent rod 8.

[0040] By setting up an annular baffle 10, the asphalt mixture flows out from the bottom opening of the annular baffle 10 into the mold, thus preventing the asphalt mixture from flowing out from both sides of the outlet and failing to accurately enter the mold.

[0041] The weighing component 12 is provided with a limiting groove 13 on its upper part. The limiting groove 13 is used to place the test mold and limit the test mold to achieve stable placement of the test mold.

[0042] In this embodiment, the weighing component 12 is located between the two support columns 2 and at the center of the upper part of the base 1. Specifically, the weighing component 12 is a high-precision electronic scale.

[0043] The mixing pot 4 is provided with a first hollow jacket, a first electric heating element is provided in the first hollow jacket, and a first temperature sensing element is provided on the inner wall of the mixing pot 4.

[0044] In this embodiment, the mixing pot 4 is made of high-temperature resistant material, and the inner wall is smooth to facilitate cleaning and prevent material from sticking.

[0045] This embodiment also includes a heat-insulating sleeve 16, a heating and temperature-controlling sleeve 14 for being fitted onto the lower part of the outside of the mold, and a heat-insulating sleeve 16 for being fitted onto the upper part of the outside of the mold.

[0046] The heating and temperature control sleeve 14 includes a cylinder, an insulation layer, a second electric heating element, a second temperature sensing element, and a second temperature controller. The cylinder is fitted over the outside of the mold, and the insulation layer wraps around the outside of the cylinder. The cylinder has a second hollow interlayer. Both the second electric heating element and the second temperature sensing element are disposed within the second hollow interlayer. Both the second electric heating element and the second temperature sensing element are connected to the second temperature controller, which is connected to a control system. The heating and temperature control sleeve 14 can provide insulation while heating, ensuring temperature stability during the Marshall specimen molding process.

[0047] In this specific embodiment, the insulation layer is an insulation cotton layer, the insulation sleeve 16 is an insulation cotton sleeve, and the test mold is a Marshall test mold.

[0048] In this specific embodiment, the first electric heating component is a first electric heating wire, the first temperature sensing component is a first temperature sensor, the second electric heating component is a second electric heating wire, and the second temperature sensing component is a second temperature sensor.

[0049] like Figure 4 and Figure 5 As shown, the control system includes a controller and a weight display screen 17, a weight setting button matrix 18, a temperature display screen 22, a temperature control multi-button interface 23, a lowering button, a working button, an automatic button 19, a feeding start button 20, and a feeding stop button 21 connected to the controller. The weight display screen 17, weight setting button matrix 18, lowering button, working button, automatic button 19, feeding start button 20, and feeding stop button 21 are all located on the weighing component 12, while the temperature display screen 22 and the temperature control multi-button interface 23 are located on the base 1.

[0050] The weight display screen 17 displays the feed weight, the weight setting button matrix 18 sets the feed weight, the descent button lowers the mixing pot 4, the working button raises the mixing pot 4 and starts mixing and heating, and the automatic button 19 enables automatic quantitative feeding. Inputting the desired asphalt mixture mass into the weight setting button matrix 18 and pressing the automatic button 19 starts automatic feeding. When the difference between the desired mass and the feed mass is less than a certain value, the feeding valve plate 9 begins to close slowly, ensuring that the feed mass when the feeding valve plate 9 is fully closed is as close as possible to the desired mass. The feeding start button 20 manually starts feeding, and the feeding stop button 21 manually stops feeding. The temperature display screen 22 displays the set temperature and real-time temperature. Specifically, it displays the set temperature of the asphalt mixture in the mixing pot 4 and the real-time temperature measured by the first temperature sensor, and also displays the set temperature of the test mold and the real-time temperature measured by the second temperature sensor. The temperature control multi-button interface 23 is used to set the heating temperature and start / stop the heating. Specifically, it is used to set the heating temperature of the asphalt mixture in the mixing pot 4 and the heating temperature of the test mold, and to control the second electric heating component to start and stop heating.

[0051] In this embodiment, the weighing component 12, the lifting drive mechanism, the stirring mechanism, the feeding opening and closing mechanism, the first temperature controller, and the heating temperature control sleeve 14 are all connected to the controller. Specifically, the lifting motor, the drive motor, the hydraulic rod 7, the first temperature controller, and the second temperature controller are all connected to the controller.

[0052] The control system also includes a power supply, a controller, a lifting motor, a drive motor, a hydraulic rod 7, a first electric heating component, and a second electric heating component, all of which are connected to the power supply. Specifically, the heating and temperature control sleeve 14 is provided with a heating power supply port 15, which is connected to the second electric heating component. The base 1 is provided with an electrical wire port 24, which is connected to the power supply and is connected to a heating power supply line. The heating power supply line can be connected to the heating power supply port 15 to supply power to the second electric heating component, thereby heating the mold.

[0053] The specific usage process is as follows: Power on the device, press the descent button to lower the mixing pot 4 to a certain height, turn the operating lever 6 on the mixing pot 4 to flip the mixing pot 4 so that the opening faces outward, load the raw materials to be mixed, set the heating temperature inside the mixing pot 4 on the temperature control multi-button interface 23, press the work button, and the mixing pot 4 will automatically rise to the top to start mixing and heating. When the mixing pot 4 rises to the top, the height of the annular baffle 10 at the bottom of the mixing pot 4 is slightly higher than the heat insulation sleeve 16 to increase the accuracy of weighing. Place the test mold with the heating temperature control sleeve 14 and the heat insulation sleeve 16 already fitted in the limiting groove 13 of the weighing component 12, set the weighing component 12 to zero, set the loading weight on the weight setting button matrix 18, connect the heating power supply line from the power cord 24 to the heating power supply port 15, set the heating temperature of the test mold on the temperature control multi-button interface 23, and start heating. After mixing is complete, press the automatic button 19 to open the feeding valve plate 9 and start automatic feeding. During feeding, the weighing information from the weighing component 12 is continuously and automatically fed back to the controller. When the difference between the required mass displayed on the weight display screen 17 and the feeding mass is less than a certain value, the controller outputs a stop signal, controlling the hydraulic rod 7 to slowly close the feeding valve plate 9. Alternatively, press the feeding start button 20 to manually start feeding and press the feeding stop button 21 to manually stop feeding. During feeding, heating and slow mixing continue in the mixing pot 4. After feeding is complete, stop heating the test mold and disconnect the heating power supply. The test mold, fitted with the heating temperature control sleeve 14 and the insulation sleeve 16, can then be directly placed into the Marshall molding machine for molding.

[0054] This specification uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A temperature control device for asphalt mixture feeding, characterized in that, The system includes a base, a weighing component, a support frame, a lifting drive mechanism, a mixing pot, a stirring mechanism, a discharging opening and closing mechanism, a heating and temperature control mechanism, a heating and temperature control sleeve, and a control system. The weighing component and the support frame are both mounted on the base. The lifting drive mechanism is mounted on the support frame and is used to drive the mixing pot to move up and down. The mixing pot is located above the weighing component, and a discharge port is provided at the bottom of the mixing pot. The discharging opening and closing mechanism is used to open or close the discharge port. The heating and temperature control mechanism includes a first electric heating component, a first temperature sensing component, and a first temperature controller. An electric heating element is used to heat the asphalt mixture in the mixing pot. A first temperature sensing element is used to monitor the temperature of the asphalt mixture in the mixing pot. Both the first electric heating element and the first temperature sensing element are connected to the first temperature controller. The upper part of the weighing element is used to place the test mold. The heating and temperature control sleeve is used to cover the outside of the test mold and to heat and control the temperature of the test mold. The weighing element, the lifting drive mechanism, the stirring mechanism, the material feeding opening and closing mechanism, the first temperature controller, and the heating and temperature control sleeve are all connected to the control system.

2. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The support frame includes a top plate and two support columns. The lower parts of the two support columns are located on both sides of the upper part of the base, and the upper parts of the two support columns are respectively connected to both sides of the top plate. The lifting drive mechanism includes two lifting drive components, each of which is located inside one of the support columns. The two ends of the mixing pot are respectively installed on the two lifting drive components, and the lifting drive components are connected to the control system.

3. The asphalt mixture feeding temperature control device according to claim 2, characterized in that, The lifting drive assembly includes a drive component, a lead screw, a lead screw nut, and a lifting seat. A vertical groove is provided on the inner side of the support column. The lower end of the lead screw is rotatably installed in the vertical groove. The drive component is located on the upper part of the vertical groove and connected to the upper end of the lead screw. The drive component is connected to the control system. The lead screw nut is installed on the lead screw. The lifting seat is fixedly sleeved on the lead screw nut and slidably installed in the vertical groove. An arc-shaped groove is provided on the upper part of the lifting seat. A protrusion is provided at both ends of the mixing pot. The lower part of the protrusion has an arc surface structure that matches the arc-shaped groove structure. An operating lever is provided on the mixing pot.

4. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The stirring mechanism is a double planetary stirring mechanism.

5. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The feeding opening and closing mechanism includes a hydraulic rod, a bent rod, and a feeding valve plate. The hydraulic rod is located on one side of the lower part of the mixing pot. The end of the feeding valve plate near the hydraulic rod is hinged to the bottom of the mixing pot. The feeding valve plate can open or close the discharge port. One end of the bent rod is hinged to the lower end of the piston rod of the hydraulic rod, and the other end of the bent rod is hinged to the end of the feeding valve plate away from the hydraulic rod. The hydraulic rod is connected to the control system.

6. The asphalt mixture feeding temperature control device according to claim 5, characterized in that, It also includes an annular baffle, which is fixed to the bottom of the mixing pot and covers the outside of the feeding valve plate. The bottom of the annular baffle is provided with a clearance groove for accommodating the bent rod.

7. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The weighing component is provided with a limiting groove on its upper part. The limiting groove is used to place the test mold and limit the position of the test mold.

8. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The mixing pot is provided with a first hollow jacket, the first electric heating component is disposed in the first hollow jacket, and the first temperature sensing component is disposed on the inner wall of the mixing pot.

9. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, It also includes a heat-insulating sleeve, wherein the heating and temperature control sleeve is used to be fitted on the lower part of the outside of the test mold, and the heat-insulating sleeve is used to be fitted on the upper part of the outside of the test mold.

10. The asphalt mixture feeding temperature control device according to claim 1, characterized in that, The heating and temperature control sleeve includes a cylinder, an insulation layer, a second electric heating element, a second temperature sensing element, and a second temperature controller. The cylinder is used to fit over the outside of the test mold, and the insulation layer is wrapped around the outside of the cylinder. The cylinder has a second hollow interlayer. The second electric heating element and the second temperature sensing element are both disposed in the second hollow interlayer. The second electric heating element and the second temperature sensing element are both connected to the second temperature controller, and the second temperature controller is connected to the control system.

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