Asphalt smoke detection device and method for simulating whole construction process of asphalt pavement

Abstract

The invention discloses an asphalt smoke detection device and method for simulating the whole process of asphalt pavement construction, and the device comprises a variable-speed conveyor belt disposed in a sealed box body, a mixing box disposed on the variable-speed conveyor belt, a distributor disposed at the bottom of the lower layer of the mixing box, and a feeding device, a mixer and an air blower which are disposed in the sealed box body. The device comprises a sealed box body, an isolation device, a lifting device, a rolling steel wheel, an exhaust pipeline, an air valve and an asphalt smoke detector, the exhaust pipeline, the air valve and the asphalt smoke detector are mounted outside the sealed box body, the air valve is mounted on the exhaust pipeline, and the asphalt smoke detector is connected with the sealed box body through the exhaust pipeline. A variable speed conveyor belt, a mixing box, a feeding device, an isolating device, a mixer, a lifting device, a distributor, a rolling steel wheel, an air blower, an exhaust pipeline, an air valve and an asphalt smoke detector are used for simulating the whole process of mixing, transporting, paving, cooling and the like in the construction process, so that the asphalt smoke and the representative component concentration of the asphalt smoke in the whole process of asphalt pavement construction are detected; and data is provided for more comprehensive understanding of asphalt smoke emission characteristics.

Description

Technical Field

[0001] The invention relates to the technical field of road engineering, and in particular to an asphalt smoke detection device and method for simulating the entire process of asphalt pavement construction. Background Art

[0002] Asphalt pavement is the main type of pavement in my country's highway construction, with advantages such as comfortable driving, fast construction and convenient maintenance. However, asphalt pavement will produce a large amount of asphalt fume during the construction stage (mixing, transportation, paving, rolling and cooling), which will cause serious harm to the ecological environment of the road area and the health of construction workers.

[0003] Currently, the main focus is on detecting the total concentration of asphalt fume during the mixing stage, while there is little research on the concentration of asphalt fume and its representative components during the transportation, paving, rolling, and cooling stages. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for detecting asphalt smoke during the whole process of simulating asphalt pavement construction, so as to overcome the problem that the prior art lacks research on the detection of asphalt smoke and its representative component concentration during the whole process of simulating asphalt pavement construction.

[0005] To achieve the above object, the present invention provides the following technical solutions: An asphalt smoke detection device for simulating the whole process of asphalt pavement construction, comprising a sealed box, wherein a variable speed conveyor belt and a mixing box placed on the variable speed conveyor belt are arranged inside the sealed box; A plurality of isolation devices are installed inside the sealed box, and the plurality of isolation devices divide the sealed box into a plurality of small sealed boxes; The top of the sealed box is provided with a feeding device, a mixer, a rolling steel wheel and a blower, and lifting devices are provided on both sides of the sealed box and the rolling steel wheel, respectively, and the lifting devices are fixed on the inner side wall of the sealed box; The top of the sealed box is connected to the air inlet end of the exhaust pipe, the air outlet end of the exhaust pipe is connected to the asphalt smoke detector, and a plurality of air valves are installed on the exhaust pipe; The mixing box comprises a partition, which divides the mixing box into an upper box body and a lower box body. The inner wall of the upper box body is inlaid with a heating wire, and a distributor is installed inside the lower box body.

[0006] Furthermore, a plurality of infrared thermometers are installed on the side walls of the sealed box.

[0007] Furthermore, the feeding device includes a feed port and a discharge port, and a paddle is provided between the feed port and the discharge port.

[0008] Furthermore, the mixer comprises a stirring rod, one end of which is connected to a stirring shaft, and a stirring blade is installed on the stirring rod.

[0009] Furthermore, the lifting device includes a second rotating shaft, which is installed on the inner side wall of the sealed box body, and a hinge buckle is installed on the second rotating shaft.

[0010] Furthermore, the asphalt smoke detector includes two parts: an asphalt smoke total concentration detection device and an asphalt smoke representative component concentration detection device.

[0011] Furthermore, the number of the isolation devices is 4.

[0012] Furthermore, the isolation device includes a third rotating shaft, which is installed at the top end of the sealed box body, and an isolation plate is installed on the third rotating shaft.

[0013] A method for detecting asphalt smoke during the entire process of simulating asphalt pavement construction, comprising the following steps: Check the air tightness of the device. The isolation device divides the sealed box into multiple sealed small boxes; The aggregate is added into the mixing box through the feeding device, and the upper box of the mixing box heats the aggregate through the heating wire; Start the variable speed conveyor belt to send the mixing box to the bottom of the mixer for mixing, open the air valve corresponding to the sealed small box corresponding to the feeding and mixing section, close the air valves of other sections, and use the exhaust pipe and asphalt smoke detector to detect asphalt smoke; Adjust the speed of the variable speed conveyor belt, the mixing box passes through the isolation device and enters the transportation stage, open the air valve corresponding to the sealed small box in this section, close the air valves in other sections, and use the exhaust pipe and asphalt smoke detector to detect asphalt smoke; The mixing box continues to pass through the isolation device and enter the paving section. Adjust the lifting device to raise the mixing box, adjust the speed of the variable-speed conveyor belt, open the partitions on both sides and the distributor in the lower box to start paving, open the air valve corresponding to the sealed small box in this section, close the air valves in other sections, and use the exhaust pipe and asphalt smoke detector to detect asphalt smoke; The mixing box continues to pass through the isolation device and enters the rolling section. The speed of the variable-speed conveyor belt is adjusted. At the same time, the lifting device is adjusted to raise the height of the rolling steel wheel to roll the paved aggregate. The air valve corresponding to the sealed small box in this section is opened, and the air valves of other sections are closed. The asphalt smoke is detected using the exhaust pipe and asphalt smoke detector; The mixing box continues to pass through the isolation device into the cooling section, close the variable speed conveyor belt, start the blower to cool the paving aggregate with air, open the air valve corresponding to the sealed small box in this section, close the air valves in other sections, and use the exhaust pipe and asphalt smoke detector to detect asphalt smoke.

[0014] Furthermore, a plurality of infrared thermometers are arranged on the mixing box to monitor the temperature of each construction process corresponding to each sealed small box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an asphalt smoke detection device for simulating the whole process of asphalt pavement construction, comprising a variable speed conveyor belt arranged in a sealing line body, a mixing box placed on the variable speed conveyor belt, a material distributor installed at the bottom of the lower layer of the mixing box, a feeding device, a mixer, and a blower installed above the sealed box body, an isolation device, a lifting device, and a rolling steel wheel installed inside the sealed box body, an exhaust pipe, an air valve, and an asphalt smoke detector installed outside the sealed box body, wherein the air valve is installed on the exhaust pipe, and the asphalt smoke detector is connected to the sealed box body through the exhaust pipe; the present invention can simulate the construction process of the asphalt surface layer through the cooperation of various components, and realizes the detection of asphalt smoke and its representative component concentration in the whole process of asphalt pavement construction.

[0016] The sealed box has good air tightness and heat insulation performance. Good air tightness can effectively prevent the leakage of toxic gases during the construction of simulated asphalt pavement, and good heat insulation performance can effectively reduce heat loss, save energy and protect the environment.

[0017] The mixing box is divided into two layers, the upper and lower layers. The inner wall of the upper layer is fixed with heating wires, which can efficiently heat the asphalt mixture. Compared with other heating methods, heating wire heating is more efficient and environmentally friendly, and will not produce other substances to interfere with the detection results of asphalt smoke; the lower layer is equipped with a distributor, which can make the asphalt mixture evenly spread in conjunction with the bottom edge of the lower layer.

[0018] The sealed box is divided into multiple independent sealed spaces by isolation devices to ensure that the asphalt smoke generated by each simulated asphalt pavement construction process will not affect each other, ensuring the accuracy of the acquired data.

[0019] Preferably, the feeding device is equipped with a paddle, and the paddle is reset after the mixture passes through the paddle under the action of gravity, which can effectively prevent the asphalt smoke from leaking through the feeding device.

[0020] Preferably, the asphalt smoke detector includes two parts: an asphalt smoke total concentration detection device and an asphalt smoke representative component concentration detection device, which can detect both the total concentration of asphalt smoke and the volatile gas H in the asphalt smoke. 2 S, CO, CO 2 、SO 2 、NO x And particulate matter PM2.5 and PM10 are tested.

[0021] The present invention also provides a method for detecting asphalt smoke during the entire process of simulating asphalt pavement construction, which realizes the construction process of simulated mixing through a variable speed conveyor belt, a mixing box, a feeding device and a mixer; realizes the construction process of simulated transportation through a variable speed conveyor belt and a mixing box; realizes the construction process of simulated paving through a variable speed conveyor belt, a mixing box, a lifting device and a distributor; realizes the construction process of simulated rolling through a variable speed conveyor belt, a lifting device and a rolling steel wheel; realizes the construction process of simulated cooling through a variable speed conveyor belt and a blower; realizes the concentration detection of asphalt smoke and its representative components in each simulated asphalt pavement construction process through a sealed box, an exhaust pipe, an air valve, an asphalt smoke detector and an isolation device; the above-mentioned simulation process can detect the components and concentration of asphalt smoke in the entire simulated construction process, providing data for a more comprehensive understanding of the emission characteristics of asphalt smoke.

[0022] Preferably, the temperature of each simulated construction process is monitored by an infrared thermometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of an asphalt smoke detection device for simulating the entire asphalt pavement construction process according to the present invention; Figure 2 It is a schematic diagram of the structure of the mixing box of the present invention; Figure 3 It is a schematic diagram of a feeding device of the present invention; Figure 4 A schematic diagram of a mixer according to the present invention; Figure 5 It is a schematic diagram of the lifting device of the present invention; Figure 6 It is a schematic diagram of the asphalt smoke detector of the present invention; Figure 7 It is a schematic diagram of the isolation device of the present invention; Figure 8 The present invention is a flow chart of a method for detecting asphalt smoke during the entire process of simulating asphalt pavement construction.

[0024] Among them, 1. variable speed conveyor belt; 2. sealed box; 3. mixing box; 4. feeding device; 5. mixer; 6. exhaust pipe; 7. air valve; 8. infrared thermometer; 9. lifting device; 10. distributor; 11. rolling steel wheel; 12. blower; 13. asphalt smoke detector; 14. isolation device; 3-1. upper box; 3-2. lower box; 3-3. partition; 3-4. first rotating shaft; 4-1. feed port; 4-2. paddle; 4-3. discharge port; 5-1. stirring shaft; 5-2. telescopic rod; 5-3. stirring blade; 9-1. hinge buckle; 9-2. second rotating shaft; 13-1. asphalt smoke total concentration detection device; 13-2. asphalt smoke representative component concentration detection device; 14-1. third rotating shaft; 14-2. isolation plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1 As shown, the present invention provides an asphalt smoke detection device simulating the whole process of asphalt pavement construction, a variable speed conveyor belt 1, a sealing box 2, a mixing box 3, a feeding device 4, a mixer 5, an exhaust pipe 6, five air valves 7, a lifting device 9, a distributor 10, a rolling steel wheel 11, a blower 12, a fixed multifunctional asphalt smoke detector 13, and an isolation device 14; Specifically, the sealed box 2 is installed outside the variable speed conveyor 1, the mixing box 3 is placed on the variable speed conveyor 1, the feeding device 4, the mixer 5, the rolling steel wheel 11 and the blower 12 are installed on the top of the sealed box 2, and the lifting device 9 is fixed on the inner side wall of the sealed box 2 to lift and lower the mixing box 3 and the rolling steel wheel 11. The interior of the sealed box 2 is separated into a plurality of sealed small boxes by arranging a plurality of isolation devices 14. The sealed box 2 is connected to the asphalt smoke detector 13. The exhaust pipe 6 is connected, and the air valve 7 is installed on the exhaust pipe 6. The mixing box 3 has two layers, namely, an upper box body 3-1 and a lower box body 3-2, which are separated by a partition 3-3. The inner wall of the upper box body 3-1 is inlaid with a heating wire, and the distributor 10 is installed inside the lower box body 3-2. The bottom surface of the partition 3-3 has a groove and can be opened to both sides. The first rotating shaft 3-4 has a protrusion corresponding to the partition groove, and the first rotating shaft 3-4 is rotatably connected to the side wall of the mixing box 3.

[0032] Specifically, the mixing box 3 is open at the top, the feeding device 4 includes a feeding port 4-1 and a discharging port 4-3, and a paddle 4-2 is arranged between the feeding port 4-1 and the discharging port 4-3; the mixer 5 includes a stirring rod 5-2, one end of which is connected to a stirring shaft 5-1, and a stirring blade 5-3 is installed on the stirring rod 5-2, and the infrared thermometer adopts an infrared thermometer PK18; the lifting device 9 includes a second rotating shaft 9-2, and the second rotating shaft 9-2 is installed on the inner side wall of the sealing box body 2, and a hinge buckle 9-1 is installed on the second rotating shaft 9-2, and the lifting device 9 is used to lift the mixing box 3 and the rolling steel wheel 11 respectively; The asphalt smoke detector 13 is a fixed multifunctional asphalt smoke detector, including two parts: an asphalt smoke total concentration detection device 13-1 and an asphalt smoke representative component concentration detection device 13-2. The isolation plate 14 - 2 of the isolation device 14 is installed inside the sealed box 2 through the rotating shaft 14 - 1 .

[0033] Example: The present invention provides an asphalt smoke detection device for simulating the whole process of asphalt pavement construction, comprising a variable speed conveyor belt 1, a sealed box 2, a mixing box 3, a feeding device 4, a mixer 5, an exhaust pipe 6, 5 air valves 7, an infrared thermometer 8, a lifting device 9, a distributor 10, a rolling steel wheel 11, a blower 12, an asphalt smoke detector 13 and 4 isolation devices 14, wherein the 4 isolation devices 14 divide the sealed box 2 into 5 sealed small boxes; The mixing process is that the aggregate etc. enters the feeding device 4 through the feed port 4-1, passes through the paddle 4-2 and then enters the upper box body 3-1 of the mixing box 3 through the discharge port 4-3; the inner wall of the upper box body 3-1 is fixedly embedded with a heating wire to heat the aggregate etc.; the variable speed conveyor belt 1 is started to transport the mixing box 3 to the bottom of the mixer 5; the telescopic rod 5-2 of the mixer 5 descends to immerse the stirring blade 5-3 into the upper box body 3-1 of the mixing box 3, and the stirring shaft 5-1 is started for mixing, and the mixer 5 can be driven by a conventional driving method, that is, an external motor.

[0034] The transportation process is that the variable speed conveyor belt 1 transports the mixing box 3 to lift the isolation plate 14-2 through the isolation device 14, and then the isolation plate 14-2 automatically resets under the action of its own gravity (the subsequent method of passing through the isolation device is the same and will not be repeated). The variable speed conveyor belt 1 slows down to allow the mixing box 3 to move on the variable speed conveyor belt 1 for a sufficient period of time.

[0035] The paving process is to raise the mixing box 3 to a certain height under the action of the lifting device 9; the first rotating shaft 3-4 opens the partition 3-3 to both sides through a conventional driving method, so that the mixed asphalt concrete is spread onto the surface of the variable speed conveyor belt 1 through the distributor 10 in the lower box body 3-2, and at the same time, the speed of the variable speed conveyor belt 1 is adjusted, and the bottom edge of the lower box body 3-2 is scraped flat to obtain evenly spread asphalt concrete.

[0036] The lifting device is installed in a small sealed box for paving and a small sealed box for rolling. The lifting device 9 can drive the mixing box 3 to rise. Similarly, the lifting device 9 can be driven by a conventional driving method, that is, an external motor.

[0037] The rolling process is to raise the rolling steel wheel 11 to a suitable height under the action of the lifting device 9, adjust the variable speed conveyor belt 1 to a suitable speed, and roll the spread asphalt concrete to obtain uniform and dense asphalt concrete. Similarly, the rolling steel wheel 11 can be driven by a motor.

[0038] The cooling process is to start the blower 12 to slowly blow air to cool the asphalt concrete, simulating the cooling conditions in actual construction.

[0039] The sealing box 2 and the isolation device 14 ensure that the entire process and each construction simulation process are in a closed condition; the infrared thermometer 8 realizes temperature monitoring of each simulated construction process; the exhaust pipe 6, the air valve 7 and the asphalt smoke detector 13 realize the detection of the concentration of asphalt smoke and its representative components in each asphalt pavement construction stage.

[0040] The present invention also provides a method for detecting asphalt smoke during the entire process of simulating asphalt pavement construction, comprising the following steps: Check the air tightness of the device. The isolation device 14 divides the sealed box 2 into a plurality of sealed small boxes; The aggregate is added into the mixing box 3 through the feeding device 4, and the upper box body 3-1 of the mixing box 3 heats the aggregate through the heating wire; Start the variable speed conveyor belt 1 to send the mixing box 3 to the bottom of the mixer 5 for stirring, open the air valve corresponding to the sealed small box corresponding to the feeding and mixing section, close the air valves of other sections, and use the exhaust pipe 6 and the asphalt smoke detector 13 to detect asphalt smoke; Adjust the speed of the variable speed conveyor belt 1, the mixing box 3 passes through the isolation device 14 and enters the transportation stage, open the air valve corresponding to the sealed small box in this section, close the air valves of other sections, and use the exhaust pipe 6 and the asphalt smoke detector 13 to detect asphalt smoke; The mixing box 3 continues to pass through the isolation device 14 and enters the paving section. The lifting device 9 is adjusted to raise the mixing box 3 to a higher height. The speed of the variable-speed conveyor belt 1 is adjusted. The partitions 3-3 and the distributor 10 in the lower box 3-2 are opened on both sides to carry out paving. The air valve corresponding to the sealed small box in this section is opened, and the air valves of other sections are closed. The asphalt smoke is detected by the exhaust pipe 6 and the asphalt smoke detector 13. The mixing box 3 continues to pass through the isolation device 14 and enters the rolling section. The speed of the variable speed conveyor belt 1 is adjusted. At the same time, the lifting device 9 is adjusted to raise the rolling steel wheel 11 to roll the paved aggregate. The air valve corresponding to the sealed small box of this section is opened, and the air valves of other sections are closed. The asphalt smoke is detected by the exhaust pipe 6 and the asphalt smoke detector 13. The mixing box 3 continues to pass through the isolation device 14 and enters the cooling section. The variable speed conveyor belt 1 is closed, and the blower 12 is started to cool the paving aggregate by blowing air. The air valve corresponding to the sealed small box in this section is opened, and the air valves of other sections are closed. The exhaust pipe 6 and the asphalt smoke detector 13 are used to detect asphalt smoke.

[0041] Specifically, the sealed box 2 is divided into five sealed small boxes by four isolation devices 14, which correspond to the aggregate mixing section, the transportation section, the paving section, the rolling section and the cooling section in sequence.

[0042] The detailed process is: Step 1: Check the air tightness of the sealed box 2 and the isolation device 14, turn on the infrared thermometer 8, and turn on the asphalt smoke detector 13.

[0043] Step 2: feed the aggregate etc. into the feed port 4-1 of the feeding device 4, and the heating wire on the inner wall of the upper box body 3-1 of the mixing box 3 continuously heats the aggregate etc.; Step 3: Start the variable speed conveyor belt 1 to transport the mixing box 3 to the bottom of the mixer 5, lower the telescopic rod 5-2 of the mixer 5 to immerse the mixing blade 5-3 into the upper layer 3-1 of the mixing box 3, start the mixing shaft 5-1 to mix, open the air valve 7 of the sealed small box, close other air valves 7 to detect asphalt smoke; Step 4: Adjust the speed of the variable speed conveyor belt 1, enter the transport stage through the isolation device 14, open the air valve 7 of the small box, close other air valves 7 to detect asphalt smoke; Step 5: Adjust the lifting device 9 to raise the mixing box 3 to a certain height, adjust the speed of the variable speed conveyor belt 1, open the partitions 3-3 on both sides for paving, open the air valve 7 of the small box, close other air valves 7 to detect asphalt smoke; Step 6: Adjust the lifting device 9 to raise the rolling steel wheel 11 to a suitable height, adjust the variable speed conveyor belt 1 to a suitable speed for rolling, open the air valve 7 of the small box and close other air valves 7 to detect asphalt smoke.

[0044] Step 7: Close the variable speed conveyor belt 1, start the blower 12 to blow air to cool the asphalt concrete, open the air valve 7 of the small box, close other air valves 7 and detect asphalt smoke.

[0045] Although the embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments and application fields, and the above-mentioned specific embodiments are only illustrative and instructive, rather than restrictive. Under the guidance of the specification, a person skilled in the art can also make many forms without departing from the scope of protection of the claims of the present invention, all of which belong to the scope of protection of the present invention.

Claims

1. An asphalt smoke detection device simulating the whole process of asphalt pavement construction, characterized in that: It comprises a sealed box body (2), wherein a variable speed conveyor belt (1) and a mixing box (3) placed on the variable speed conveyor belt (1) are provided inside the sealed box body (2); A plurality of isolation devices (14) are installed inside the sealed box (2), and the plurality of isolation devices (14) divide the sealed box (2) into a plurality of small sealed boxes; A feeding device (4), a mixer (5), a rolling steel wheel (11) and a blower (12) are provided at the top of the sealed box (2), and lifting devices (9) are provided on both sides of the sealed box (2) and the rolling steel wheel (11), respectively, and the lifting devices (9) are fixed to the inner side wall of the sealed box (2); The top of the sealed box (2) is connected to the air inlet end of an exhaust pipe (6), the air outlet end of the exhaust pipe (6) is connected to an asphalt smoke detector (13), and a plurality of air valves (7) are installed on the exhaust pipe (6); The mixing box (3) comprises a partition (3-3), the partition (3-3) dividing the mixing box (3) into an upper box body (3-1) and a lower box body (3-2), the inner wall of the upper box body (3-1) being inlaid with a heating wire, and a material distributor (10) being installed inside the lower box body (3-2).

2. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: A plurality of infrared thermometers (8) are installed on the side wall of the sealed box (2).

3. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: The feeding device (4) comprises a feeding port (4-1) and a discharging port (4-3), and a paddle (4-2) is provided between the feeding port (4-1) and the discharging port (4-3).

4. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: The mixer (5) comprises a stirring rod (5-2), one end of which is connected to a stirring shaft (5-1), and a stirring blade (5-3) is mounted on the stirring rod (5-2).

5. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: The lifting device (9) comprises a second rotating shaft (9-2), the second rotating shaft (9-2) being mounted on an inner side wall of the sealed box body (2), and a hinge buckle (9-1) being mounted on the second rotating shaft (9-2).

6. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: The asphalt smoke detector (13) comprises two parts: an asphalt smoke total concentration detection device (13-1) and an asphalt smoke representative component concentration detection device (13-2).

7. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 1 is characterized in that: The number of the isolation devices (14) is 4.

8. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 7 is characterized in that: The isolation device (14) comprises a third rotating shaft (14-1), the third rotating shaft (14-1) is mounted on the top end inside the sealed box body (2), and an isolation plate (14-2) is mounted on the third rotating shaft (14-1).

9. A method for detecting asphalt smoke during the entire process of simulating asphalt pavement construction, characterized in that: The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to any one of claims 1 to 8 comprises the following steps: Checking the air tightness of the device, the isolation device (14) divides the sealed box (2) into a plurality of sealed small boxes; Aggregates are added into a mixing box (3) through a feeding device (4), and the upper box body (3-1) of the mixing box (3) heats the aggregates through a heating wire; Start the variable speed conveyor belt (1) to send the mixing box (3) to the bottom of the mixer (5) for mixing, open the air valve corresponding to the sealed small box corresponding to the feeding and mixing section, close the air valves of other sections, and use the exhaust pipe (6) and the asphalt smoke detector (13) to detect asphalt smoke; The speed of the variable speed conveyor belt (1) is adjusted, the mixing box (3) passes through the isolation device (14) and enters the transport stage, the air valve corresponding to the sealed small box of this section is opened, the air valves of other sections are closed, and the asphalt smoke is detected by using the exhaust pipe (6) and the asphalt smoke detector (13); The mixing box (3) continues to pass through the isolation device (14) and enters the paving section. The lifting device (9) is adjusted to raise the height of the mixing box (3). The speed of the variable speed conveyor belt (1) is adjusted. The partitions (3-3) and the distributor (10) in the lower box (3-2) are opened on both sides to carry out paving. The air valve corresponding to the sealed small box corresponding to this section is opened, and the air valves of other sections are closed. The asphalt smoke is detected using the exhaust pipe (6) and the asphalt smoke detector (13). The mixing box (3) continues to pass through the isolation device (14) and enters the rolling section, the speed of the variable speed conveyor belt (1) is adjusted, and at the same time, the lifting device (9) is adjusted to raise the height of the rolling steel wheel (11) to roll the paved aggregate, the air valve corresponding to the sealed small box corresponding to this section is opened, the air valves of other sections are closed, and the asphalt smoke is detected by using the exhaust pipe (6) and the asphalt smoke detector (13); The mixing box (3) continues to pass through the isolation device (14) and enters the cooling section. The variable speed conveyor belt (1) is closed, and the blower (12) is started to cool the paving aggregate with air. The air valve corresponding to the sealed small box in this section is opened, and the air valves in other sections are closed. The asphalt smoke is detected using the exhaust pipe (6) and the asphalt smoke detector (13).

10. The asphalt smoke detection device for simulating the whole process of asphalt pavement construction according to claim 9, characterized in that: A plurality of infrared thermometers (8) are arranged on the mixing box (3) to monitor the temperature of each construction process corresponding to each sealed small box.

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