Environment-controllable foamed asphalt foaming characteristic calibration device and method

Abstract

The invention discloses an environment-controllable foamed asphalt foaming characteristic calibration device and method, belongs to the technical field of asphalt material detection, and solves the problem that in the prior art, an asphalt material is continuously heated, so that the foaming speed is too high. The calibration shell rotates relative to the adjusting base, so that the heating source is in discontinuous contact with the asphalt material to discontinuously heat the asphalt material, and the problem that the foaming speed of the asphalt material is too high is avoided; the device further comprises a limiting mechanism, the limiting mechanism can achieve relative fixation between the calibration shell and the adjusting base, and therefore the foaming condition of the asphalt material when the heating source is in different inclined states can be conveniently judged.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt material foaming detection, and in particular to a device and method for calibrating foamed asphalt foaming characteristics in a controllable environment. Background Art

[0002] Foamed asphalt material is a building material widely used in the field of construction technology and is widely used in municipal engineering. When using this material, it is necessary to calibrate the foaming performance of the foamed asphalt material to determine whether the material meets the construction needs. The expansion rate and half-life of foamed asphalt are key indicators of asphalt foaming quality, and accurate calibration of these indicators is crucial.

[0003] In the prior art, during the asphalt foaming process, the asphalt needs to be heated to change its properties and performance. There are many ways to heat the asphalt, usually using direct heating with open flames, water heating, gas heating, heating pipe heating and other heating methods. The heating pipe heating is to wrap multiple heating pipes around the asphalt surface, and then indirectly heat the asphalt through the heating pipe temperature increase to achieve the purpose of foaming. However, the heating pipe heating method used in the prior art still has major defects, as follows: In the prior art, when the asphalt material is foamed and heated, it is injected into the reactor body to achieve heating. The bottom of the reactor body is heated, the asphalt material is heated inside the reactor body, and the upper layer of the asphalt material is heated by heat conduction. Therefore, in the reactor body, asphalt materials at different positions are heated differently, the upper layer of the asphalt material is heated less, and the lower layer of the asphalt material is heated more. Therefore, when foaming, the lower layer of the asphalt material foams more, and the upper layer of the asphalt material foams less. The uneven heating of the asphalt material in the reactor can easily lead to the problem of coking at the bottom.

[0004] In order to solve the above problems in the prior art, a Chinese patent with the authorization announcement number CN218027025U discloses an asphalt foaming device, which is composed of a foaming tube and a heating sleeve arranged inside the foaming tube. The asphalt material is placed in the foaming tube for heating. In addition, a spiral blade is arranged in the foaming tube. The spiral blade rotates in the foaming tube to achieve uniform heating of the asphalt material, avoiding the above problem of uneven heating of the asphalt. However, the above technology still has the following defects in use: Since the foaming tube as a whole can heat the asphalt material, the heating area of ​​the asphalt material in the foaming tube is large, and the asphalt material is continuously heated in the foaming tube. Therefore, the asphalt material heats up quickly in the foaming tube, causing the asphalt material to foam too quickly, which can easily lead to excessive pressure in the foaming tube. When sampling for foaming calibration, it is easy to cause material spraying and scalding the operators. Therefore, the above technology has a high safety risk factor during use and there are certain safety risks. Summary of the invention

[0005] In view of the problem that when existing devices heat foamed asphalt materials, the asphalt material is continuously heated and the heating area is too large, which easily causes the asphalt to heat up and foam too quickly, the present invention provides a foamed asphalt foaming characteristic calibration device and method in a controllable environment. The calibration device can avoid the asphalt heating area being too large and can also achieve the effect of uniform heating, thereby effectively preventing the problem of the asphalt foaming too quickly during foaming.

[0006] In order to solve the problem that the existing device can only monitor in a specific environment, the technical solution adopted by the present invention is: A device for calibrating the foaming characteristics of foamed asphalt in a controllable environment is used to calibrate the foaming condition of asphalt materials. The device includes an adjusting base and a calibration shell. The asphalt material is located in the calibration shell, and a calibration sampler is also provided on the calibration shell to calibrate the foaming of the asphalt material. The calibration shell is rotatably connected to the adjusting base, and a heat source is provided on the calibration shell. When the calibration shell rotates, it drives the heat source to rotate so that the asphalt material is intermittently in contact with the heat source.

[0007] Preferably, in the above calibration device, the calibration shell is composed of an upper hemispherical shell, a lower hemispherical shell and an intermediate ring connecting the upper hemispherical shell and the lower hemispherical shell, and the heat source is fixedly connected to the inner wall of the intermediate ring.

[0008] Preferably, in the above calibration device, the calibration shell is rotatably connected through the injection shaft tube and the calibration shaft tube and the adjustment base, and asphalt material can be injected into the calibration shell through the injection shaft tube. The calibration sampler is installed in the calibration shaft tube and extends into the interior of the calibration shell.

[0009] Preferably, in the above calibration device, the heat source adjusts the temperature inside the calibration shell through a temperature control mechanism, and the temperature control mechanism includes a heating tube for heating and a cooling tube for cooling. The heating tube plays a heating role, and the cooling tube plays a cooling role.

[0010] Preferably, the calibration device further comprises a limiting mechanism, which is used to limit the relative position of the calibration shell with respect to the adjustment base, so that the contact area between the heat source and the asphalt material can be changed.

[0011] Preferably, in the above calibration device, the limiting mechanism includes a clamping plate and convex ribs, the convex ribs are arranged on the surface of the calibration shell, and clamping grooves are formed between the convex ribs, and the clamping plate cooperates with the clamping grooves to fix the calibration shell relative to the adjustment base.

[0012] Preferably, in the above-mentioned calibration device, the limiting mechanism also includes a base flange arranged on the adjustment base, and an adjustment mechanism is arranged on the base flange, and the adjustment mechanism can adjust the clamping plate on the base flange to be away from or close to the calibration shell.

[0013] Preferably, in the above calibration device, when the calibration shell rotates relative to the adjustment base, the heat source can be in a vertical, inclined or horizontal state.

[0014] Another object of the present invention is to provide a calibration method for the above-mentioned calibration device, the specific steps of the method are as follows: The asphalt material is located in the calibration shell, and the heat source contacts the asphalt material in the calibration shell to heat it. The asphalt material is heated and foamed, and the foaming effect is calibrated by the calibration sampler; The calibration shell rotates on the adjustment base, and when the heat source heats the asphalt material, it intermittently contacts the asphalt material along with the rotation of the calibration shell.

[0015] Preferably, the calibration method includes heating and foaming the asphalt when the heat source is in different states, and the specific states are as follows: the heat source is in a vertical, inclined or horizontal state.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The calibration device in the present invention rotates the calibration shell relative to the adjustment base. A heat source is provided on the calibration shell. The heat source can heat the asphalt material inside the calibration shell through a temperature control mechanism. The calibration shell in the present invention makes intermittent contact between the heat source and the asphalt material when rotating, thereby realizing intermittent heating of the asphalt material and avoiding the problem of excessive foaming speed caused by continuous heating of the asphalt material in the prior art.

[0017] The calibration device in the present invention is also provided with a limiting mechanism, which can limit the state between the calibration shell and the adjustment base, so that the heat source is in different states such as vertical, inclined and horizontal, thereby changing the contact area between the heat source and the asphalt material, making it easier for operators to judge the foaming condition of the asphalt material inside the calibration shell when the heat source is in different states.

[0018] The present invention also provides a calibration method for the above-mentioned calibration device. When the asphalt foaming condition is calibrated by the calibration method of the present invention, on the one hand, the problem of excessive foaming speed of the asphalt material can be avoided. On the other hand, the method of the present invention can be used to judge the foaming condition of the asphalt material under different heating areas, thereby facilitating the detection and research of the asphalt foaming effect by the operating personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the calibration device in the present invention; Figure 2 It is a result analysis diagram of the heat condition of the calibrated shell in the present invention; Figure 3 It is a schematic diagram of the split structure of the calibration shell in the present invention; Figure 4 It is a structural cross-sectional view of the calibration device in the present invention; Figure 5 is a top view of the calibration device in the present invention; Figure 6 for Figure 5 AA structural cross-sectional view and partial structural enlarged view; Figure 7 It is a structural schematic diagram of a calibration device according to another embodiment of the present invention; Figure 8 for Figure 7 A partial structural cross-sectional view; Fig. 9 for Figure 7 A top view of Fig.10 This is a diagram of different states of heating asphalt material in another embodiment of the present invention; wherein, Fig.10 (a) is a diagram showing the heating state of the asphalt material when the middle ring is in a vertical state; Fig.10 (b) is a diagram showing the heating state of the asphalt material when the middle ring is tilted; Fig.10 (c) is a diagram showing the heating state of the asphalt material when the middle ring is in a horizontal state.

[0020] The meanings of the reference numerals in the figures are: 100, calibration shell; 101, upper hemispherical shell; 102, lower hemispherical shell; 103, intermediate ring; 104, injection shaft tube; 105, calibration shaft tube; 103a, heating tube; 103b, cooling tube; 200, adjusting base; 201, fixing housing; 202, base convex edge; 300, limiting mechanism; 301, convex rib; 302, fixing plate; 303, clamping plate; 304, adjusting mechanism; 305, guide rod; 301a, clamping groove. DETAILED DESCRIPTION

[0021] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] according to Figures 1 to 6As shown, it is a structural schematic diagram of an embodiment of the present invention. The controllable environment foamed asphalt foaming characteristic calibration device in this embodiment includes a calibration shell 100 and an adjustment base 200. The calibration shell 100 is rotatably arranged on the adjustment base 200. A cavity is formed between the calibration shell 100 and the adjustment base 200, so that the calibration shell 100 rotates in the adjustment base 200 without interfering with the adjustment base 200. In this embodiment, the calibration shell 100 is a hollow spherical structure, and the calibration shell 100 consists of an upper hemispherical shell 101 and a lower hemispherical shell 102. The upper hemispherical shell 101 and the lower hemispherical shell 102 are connected by an intermediate ring 103. The upper hemispherical shell 101 and the lower hemispherical shell 102 are threadedly connected to the intermediate ring 103, so that the upper hemispherical shell 101 and the lower hemispherical shell 102 are easy to disassemble from the intermediate ring 103, thereby facilitating maintenance and cleaning. In this embodiment, a temperature regulating mechanism is provided on the intermediate ring 103, and the temperature of the calibration shell 100 is increased or decreased by the temperature regulating mechanism, so as to adjust the temperature inside the calibration shell 100. Figure 2 As shown, in this embodiment, the heat generated by the adjustment mechanism 304 on the middle ring 103 is conducted along the upper hemispherical shell 101 and the lower hemispherical shell 102 , thereby heating the material in the calibration shell 100 .

[0023] In this embodiment, the foamed asphalt material is located inside the calibration shell 100, and is heated by the temperature adjustment function of the intermediate ring 103, so that temperature rise and foaming can be achieved inside the calibration shell 100. In addition, in this embodiment, the calibration shell 100 is rotatable inside the adjustment base 200, thus avoiding the problem of uneven heating caused by the relatively fixed position between the heat source and the material in the prior art.

[0024] like Figures 1 to 4 As shown, in this embodiment, the two ends of the calibration shell 100 are respectively connected with an injection shaft tube 104 and a calibration shaft tube 105, and the injection shaft tube 104 and the calibration shaft tube 105 extend to the outside of the adjustment base 200. In this embodiment, the injection shaft tube 104 and the calibration shaft tube 105 can act as a rotating shaft to realize the rotational connection between the calibration shell 100 and the adjustment base 200, and the calibration shell 100 can also use the injection shaft tube 104 and the calibration shaft tube 105 as the axis to realize rotation in the adjustment base 200. In addition, in this embodiment, the injection shaft tube 104 can also act as a feeding pipe, and foamed asphalt material can be injected into the calibration shell 100 from the injection shaft tube 104. The calibration shaft tube 105 can also play the role of installing a calibration sampler. The calibration sampler is installed in the calibration shaft tube 105, and the end of the sampler extends to the interior of the calibration shell 100, which plays a role in sampling and calibrating the foaming condition of the asphalt material in the calibration shell 100.

[0025] like Figures 4 to 6As shown, in this embodiment, a heating tube 103a and a cooling tube 103b are installed inside the middle ring 103. The heating tube 103a and the cooling tube 103b are distributed in an annular manner inside the middle ring 103. The heating tube 103a can heat the asphalt material in the calibration shell 100 through the heat generation effect, and the cooling tube 103b can cool down the material in real time. Therefore, the cooperation between the heating tube 103a and the cooling tube 103b can adjust the temperature inside the calibration shell 100, thereby achieving the foaming of the asphalt material and controlling the foaming speed of the asphalt material, avoiding the problem of excessive foaming speed. In this embodiment, the ends of the heating tube 103a and the cooling tube 103b can also extend through the injection shaft tube 104 and the calibration shaft tube 105, and the connection method thereof will not be repeated in this embodiment.

[0026] In the present embodiment, when the calibration shell 100 rotates, the middle ring 103 rotates along with the calibration shell 100. Therefore, the asphalt material is heated more when it is in contact with the middle ring 103 in the calibration shell 100. When it is not in contact with the middle ring 103, the heating can only be achieved through the transmission action of the calibration shell 100, and the heating is relatively small. Therefore, when the calibration shell 100 rotates in the adjustment base 200, intermittent contact between the middle ring 103 and the asphalt material is achieved, thereby avoiding the problem in the prior art that the asphalt material is continuously heated during foaming, resulting in temperature rise and excessive foaming speed.

[0027] When the foam material is calibrated for foaming in the present embodiment, first, the foamed asphalt material enters the calibration shell 100 through the injection shaft tube 104, and the middle ring 103 heats the asphalt material in the calibration shell 100 through the action of the temperature control mechanism. The asphalt material is heated in the calibration shell 100 to foam. The asphalt foaming condition in the calibration shell 100 is calibrated by the calibration sampler in the calibration shaft tube 105, so that the foaming condition of the asphalt material can be judged. When the asphalt material is heated, the calibration method in the present embodiment rotates the calibration shell 100 in the adjustment base 200, so that the asphalt material is heated evenly in the calibration shell 100, thereby avoiding the problem of uneven heating of the asphalt material, thereby achieving a uniform foaming effect. In addition, in the present embodiment, when the calibration shell 100 rotates, the middle ring 103 serving as a heat source is intermittently in contact with the asphalt material, thereby avoiding the problem of excessive heating and foaming speed caused by continuous heating of the asphalt material in the prior art.

[0028] like Figures 7-9As shown, it is a structural diagram of a calibration device of another embodiment of the present invention. The calibration device in this embodiment, on the basis of the above embodiment, is further provided with a limiting mechanism 300. The function of the limiting mechanism 300 is to fix the calibration shell 100. In the above embodiment, when the asphalt is heated, the calibration shell 100 can be rotated to achieve uniform heating, while the function of the limiting mechanism 300 in this embodiment is to study the foaming condition of the asphalt material in the calibration shell 100 when the heat source is in different states.

[0029] In this embodiment, the adjustment base 200 includes a fixed shell 201 and a base flange 202. The limiting mechanism 300 is fixedly installed on the base flange 202 to limit the calibration shell 100, so that the middle ring 103 on the calibration shell 100 is in different states, so that the foaming condition of the asphalt material in the calibration shell 100 can be studied.

[0030] In this embodiment, the limiting mechanism 300 includes a convex rib 301 arranged on the calibration shell 100 and a clamping plate 303 arranged on the base flange 202. The clamping plate 303 can be moved closer to or farther away from the calibration shell 100 on the base flange 202, and the clamping groove 301a formed between the clamping plate 303 and the convex rib 301 cooperates with each other to achieve clamping, thereby preventing the calibration shell 100 from rotating on the adjustment base 200.

[0031] like Fig.10 As shown, when the calibration housing 100 is rotated to different positions, the contact area between the intermediate ring 103 and the asphalt material is different, such as Fig.10 As shown in (a), the middle ring 103 is in a vertical state and has the largest contact area with the asphalt material. At this time, the asphalt material is heated the most. Fig.10 As shown in (b), the middle ring 103 is in an inclined state, so that compared with Fig.10 In (a), the contact area between the asphalt material and the intermediate ring 103 is reduced, thereby reducing the heat exposure of the asphalt material. Fig.10 As shown in (c), the middle ring 103 is in a horizontal state, and the asphalt material is not in contact with the middle ring 103. The heating of the asphalt material is mainly achieved by conduction through the calibration shell 100. It is worth noting that the amount of asphalt material in this embodiment should be less than the volume of the upper hemispherical shell 101 or the lower hemispherical shell 102. Therefore, when the middle ring 103 is in a horizontal state, the asphalt material is not in contact with the middle ring 103.

[0032] In this embodiment, the rotation of the calibration housing 100 makes the intermediate ring 103 be in different states, so that the foaming state of the asphalt material under different heating areas can be determined.

[0033] like Figure 7 as well as Fig. 9 As shown, in this embodiment, the limiting mechanism 300 also includes an adjustment mechanism 304 for driving the clamping plate 303 to move. The adjustment mechanism 304 can drive the clamping plate 303 to slide along the surface of the base convex edge 202, so that the clamping plate 303 can be clamped into the clamping groove 301a to achieve relative fixation between the calibration housing 100 and the adjustment base 200. Figure 7 As shown, in this embodiment, a fixed plate 302 is fixedly connected to the surface of the base convex edge 202, and the adjustment mechanism 304 is an adjustment rod and a spring sleeved on the adjustment rod. The adjustment rod passes through the fixed plate 302 and is slidably connected to the fixed plate 302. The spring is sleeved on the adjustment rod and the two ends of the spring are respectively connected to the fixed plate 302 and the clamping plate 303. Therefore, when the clamping plate 303 moves relative to the fixed plate 302, the spring contracts and the clamping plate 303 disengages from the clamping groove 301a. At this time, the calibration shell 100 can rotate. When the clamping plate 303 moves relative to the calibration shell 100, the clamping plate 303 is clamped into the clamping groove 301a, so that the calibration shell 100 is fixed relative to the adjustment base 200 and stops rotating. In this embodiment, a guide rod 305 is also connected to the clamping plate 303. The guide rod 305 passes through the fixed plate 302 and is slidably connected to the fixed plate 302. When the clamping plate 303 moves relative to the calibration shell 100, the guide rod 305 slides on the fixed plate 302 following the clamping plate 303.

[0034] In this embodiment, the adjusting mechanism 304 is used to adjust the clamping plate 303 so that the clamping groove 301a is clamped in different clamping grooves 301a so that the middle ring 103 on the calibration shell 100 is in different tilting states, which is convenient for operators to judge the foaming effect of the asphalt material when the middle ring 103 is in different states.

[0035] It is worth noting that the adjustment mechanism 304 in this embodiment includes but is not limited to the above-mentioned adjustment rod and spring structure, and also includes adjustment methods such as threaded rods. Specifically, the adjustment mechanism 304 in this embodiment is a structure in which the adjustment clip plate 303 enters the clip groove 301a, as long as the calibration shell 100 can be fixed relative to the adjustment base 200.

[0036] In addition, the calibration device in this embodiment specifically performs the following method for calibrating the foaming of asphalt materials: In this embodiment, asphalt can be heated in the following ways: After the asphalt material enters the calibration housing 100 , the temperature regulating mechanism in the middle ring 103 works to heat the asphalt material in the calibration housing 100 , and the asphalt material heats up and foams. The foaming condition of the asphalt material is detected by the calibration sampler in the calibration shaft tube 105 .

[0037] In addition, when it is necessary to determine the foaming condition of the asphalt material under different heating areas, the calibration housing 100 can be rotated so that the middle ring 103 is in different tilted states and the limiting mechanism 300 is used to fix the calibration housing 100 relative to the adjustment base 200. Specifically: The clamping plate 303 on the limiting mechanism 300 is clamped in different clamping grooves 301a, so that the middle ring 103 is in different tilted states, specifically: the middle ring 103 is in a vertical state or the middle ring 103 is in a tilted state or the middle ring 103 is in a horizontal state, so that the contact area between the asphalt material and the middle ring 103 changes, thereby changing the heated area. When the asphalt material is heated and foamed in the calibration shell 100, the foaming condition of the asphalt material is detected by the calibration sampler. It is worth noting that in this embodiment, when the middle ring 103 is in a horizontal state, the middle ring 103 is not in contact with the asphalt material, and the heating of the asphalt material is achieved through heat conduction of the calibration shell 100. At this time, the heating efficiency of the asphalt material is the lowest and the foaming time is the longest.

[0038] In this embodiment, the middle ring 103 is placed in different tilt states by fixing the calibration housing 100 relative to the adjustment base 200, thereby judging the foaming state of the asphalt material. Other methods that can achieve the method of fixing the calibration housing 100 relative to the adjustment base 200 so that the heat source is placed in different states to heat the asphalt material are within the protection scope of the present invention.

[0039] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A device for calibrating foamed asphalt foaming characteristics in a controllable environment, comprising an adjustment base (200) and a calibration shell (100), wherein asphalt material is located in the calibration shell (100), and a calibration sampler is also provided on the calibration shell (100) to calibrate the foaming of the asphalt material, characterized in that: The calibration shell (100) is rotatably connected to the adjustment base (200), and a heat source is provided on the calibration shell (100). When the calibration shell (100) rotates, it drives the heat source to rotate so that the asphalt material is intermittently in contact with the heat source.

2. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 1, characterized in that: The calibration shell (100) is composed of an upper hemispherical shell (101), a lower hemispherical shell (102), and an intermediate ring (103) connecting the upper hemispherical shell (101) and the lower hemispherical shell (102), and the heat source is fixedly connected to the inner wall of the intermediate ring (103).

3. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 1, characterized in that: The calibration housing (100) is rotatably connected to the adjustment base (200) via the injection shaft tube (104) and the calibration shaft tube (105), and asphalt material is injected into the calibration housing (100) via the injection shaft tube (104). The calibration sampler is installed in the calibration shaft tube (105) and extends into the interior of the calibration housing (100).

4. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 2, characterized in that: The heat source adjusts the temperature in the calibration housing (100) through a temperature adjustment mechanism, and the temperature adjustment mechanism comprises a heating tube (103a) for heating and a cooling tube (103b) for cooling.

5. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to any one of claims 1 to 4, characterized in that: The calibration device further comprises a limiting mechanism (300), wherein the limiting mechanism (300) is used to limit the relative position of the calibration housing (100) relative to the adjustment base (200), so that the contact area between the heat source and the asphalt material is changed.

6. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 5, characterized in that: The limiting mechanism comprises a clamping plate (303) and a convex rib (301); the convex rib (301) is arranged on the surface of the calibration housing (100), and a clamping groove (301a) is formed between the convex ribs (301); the clamping plate (303) cooperates with the clamping groove (301a) to fix the calibration housing (100) relative to the adjustment base (200).

7. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 6, characterized in that: The limiting mechanism also includes a base flange (202) disposed on the adjustment base (200), and an adjustment mechanism (304) is disposed on the base flange (202). The adjustment mechanism (304) is used to adjust the clamping plate (303) on the base flange (202) to move away from or closer to the calibration housing (100).

8. The device for calibrating foamed asphalt foaming characteristics in a controlled environment according to claim 5, characterized in that: When the calibration housing (100) rotates relative to the adjustment base (200), the heat source is in a vertical, inclined or horizontal state.

9. A method for calibrating the foaming characteristics of foamed asphalt in a controlled environment, characterized in that: The specific steps are as follows: The asphalt material is located in the calibration housing (100), and the heat source contacts the asphalt material in the calibration housing (100) to heat it. The asphalt material is heated to foam, and the foaming effect is calibrated through the calibration sampler; The calibration shell (100) rotates on the adjustment base (200), and when the heat source heats the asphalt material, it intermittently contacts the asphalt material as the calibration shell (100) rotates.

10. The method for calibrating foaming characteristics of foamed asphalt in a controlled environment according to claim 9, characterized in that: The calibration method includes heating and foaming the asphalt under different conditions of the heat source, and the specific conditions are as follows: The heat source is in a vertical, inclined or horizontal position.

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