Modified asphalt automatic preparation device and method

Abstract

The application discloses a modified asphalt automatic preparation device and method in the technical field of modified asphalt, and aims to solve the problems of large human factor interference in modifier adding quality and particle size and low work efficiency in the prior art. The adding mechanism is provided with a mixing mechanism at one end, and the mixing mechanism is provided with a reaction mechanism at one end; the reaction mechanism comprises a box body, a first-stage reaction cylinder and a second-stage reaction cylinder which are connected in communication, and stirring mechanisms are arranged in the first-stage reaction cylinder and the second-stage reaction cylinder; the application is suitable for modified asphalt preparation, the adding quality of the modifier and the crushing work are controlled by the adding mechanism, so that the application avoids human factor interference and realizes automatic control of preparation; after physical modification of asphalt and the modifier is carried out through the first-stage reaction cylinder, the two are input into the second-stage reaction cylinder for chemical modification, so that waste of residual heat is avoided, and the preparation efficiency of the modified asphalt is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a modified asphalt automatic preparation device and method, belonging to the technical field of modified asphalt. BACKGROUND

[0002] With the implementation of the traffic power strategy, the performance requirements of asphalt mixture as the main material of asphalt pavement are also continuously improved. Asphalt modification is an inevitable trend to improve the road performance of asphalt mixture, and one of the main means is to modify asphalt with polymer modifier. Adding high molecular polymer modifiers such as SBS and EVA to asphalt, and then uniformly dispersing the polymer modifier in base asphalt through high-speed shearing and stirring, so as to improve the road performance of asphalt mixture. However, the performance of modified asphalt mainly depends on the distribution state of the modifier in the base asphalt. Therefore, improving the preparation efficiency of modified asphalt and enhancing the uniform distribution state of the modifier in the base asphalt have gradually become the development trend of road material research.

[0003] At present, when conducting modified asphalt experiments indoors, a high-speed shearing disperser is often used to prepare modified asphalt. However, this device has the disadvantage that the added mass and particle size of the modifier are greatly affected by human factors, which affects the working effect of the device. At the same time, the existing modified asphalt preparation device has low working efficiency when physically or chemically modified, which affects the practicability of the device. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art, provide a modified asphalt automatic preparation device and method, solve the problem that the added mass and particle size of the modifier are greatly affected by human factors in the existing modified asphalt preparation device, which affects the working effect of the device. At the same time, the existing modified asphalt preparation device has low working efficiency when physically or chemically modified.

[0005] To solve the above technical problems, the present application is realized by using the following technical scheme:

[0006] In a first aspect, the present application provides a modified asphalt automatic preparation device, comprising an adding mechanism, one end of the adding mechanism is provided with a mixing mechanism, one end of the mixing mechanism is provided with a reaction mechanism;

[0007] The adding mechanism is used for crushing and weighing the modifier, the mixing mechanism is used for mixing hot asphalt and the crushed modifier, and the reaction mechanism is used for reacting the hot asphalt, the crushed modifier and the additive;

[0008] The reaction mechanism includes a box, the box is equipped with a first reaction cylinder and a second reaction cylinder, the first reaction cylinder and the second reaction cylinder are equipped with stirring mechanisms, the outer wall of the second reaction cylinder is equipped with an adding port, and the adding port extends to the outside of the box.

[0009] Further, the adding mechanism includes a first box and a crushing box, the top of the first box is equipped with a movably connected upper cover, the first box is communicated with the crushing box through a connecting pipe, the connecting pipe is equipped with a first valve, the bottom of the crushing box is equipped with a second box, the crushing box is communicated with the second box, the first box is equipped with a first mass disc inside, the second box is equipped with a second mass disc inside, the crushing box is rotatably connected with crushing gears on both sides, the crushing box is equipped with a first power mechanism for driving the rotation of the crushing gears, the crushing box is equipped with an adjusting mechanism for driving the sliding of the first power mechanism, the two crushing gears are matched to crush the modifier, and the bottom of the second box is equipped with a discharge pipe, and the discharge pipe is equipped with a second valve.

[0010] Further, the adding mechanism further includes a first controller, the first mass disc, the second mass disc, the first valve, the second valve, the first power mechanism and the adjusting mechanism are electrically connected with the first controller, and the first controller is equipped with a first mass display screen, a second mass display screen, a total display screen, a first valve switch button, a first rotating speed adjusting button and a gear spacing adjusting button.

[0011] Further, the mixing mechanism includes two supports, a rotating drum is rotatably connected between the two supports, the inner side of the rotating drum is equipped with an inner cylinder, one of the supports is equipped with a second power mechanism for driving the rotation of the rotating drum, one side of the outer wall of the rotating drum is equipped with a second injection pipe and a first injection pipe, the first injection pipe is located on one side of the discharge pipe and matched with the discharge pipe, the first injection pipe and the second injection pipe are communicated with the inner cylinder, the outer wall of the inner cylinder is equipped with a first heating resistor, the top of the first reaction cylinder is equipped with a communicating pipe, one side of the communicating pipe of the outer wall of the rotating drum is equipped with an output pipe, the output pipe is communicated with the inner cylinder, the inner cylinder is communicated with the first reaction cylinder through the output pipe and the communicating pipe, and the first injection pipe, the second injection pipe and the output pipe are all equipped with fourth valves.

[0012] Further, the rotating drum is rotatably equipped with a first flue gas collector and a second controller at both ends, the first heating resistor and the second power mechanism are electrically connected with the second controller, and the second controller is equipped with a rotating speed display screen, a temperature display screen, a second rotating speed adjusting button and a temperature adjusting button.

[0013] Further, two of the supports are arranged on both sides of the top of the box.

[0014] Further, the stirring mechanism comprises heating rotating shafts, two of the heating rotating shafts are rotationally connected with the inner walls of the first reaction cylinder and the second reaction cylinder respectively, the first reaction cylinder and the second reaction cylinder are both provided with third power mechanisms for driving the heating rotating shafts to rotate, the outer walls of the heating rotating shafts are provided with blades, the outer walls of the blades are provided with second heating resistors, the outer walls of the first reaction cylinder and the second reaction cylinder are both provided with temperature probes, the first reaction cylinder and the second reaction cylinder are communicated through a connecting pipe, and the connecting pipe is provided with a third valve.

[0015] Further, the outer wall of the box is provided with a second flue gas collector and a third controller, the second flue gas collector is communicated with the first reaction cylinder and the second reaction cylinder, the heating rotating shafts, the third power mechanisms, the second heating resistors, the temperature probes and the third valve are all electrically connected with the third controller, and the third controller is provided with a first control panel, a second control panel and a third valve switch button.

[0016] Further, the bottom of the box is provided with a plurality of supporting columns, and the bottom of the second reaction cylinder is communicated with a storage tank through a discharge pipe.

[0017] In the second aspect, the application provides an automatic modified asphalt preparation method, which adopts the automatic modified asphalt preparation device in the first aspect, and the method comprises the following steps:

[0018] The modified agent raw material is input into the adding mechanism, the modified agent raw material is crushed and weighed by the adding mechanism, and the crushed modified agent is obtained.

[0019] The hot asphalt and the crushed modified agent are input into the mixing mechanism, the hot asphalt and the crushed modified agent are mixed by the mixing mechanism, and the mixture is obtained.

[0020] The mixture is input into the first reaction cylinder, the mixture of the hot asphalt and the crushed modified agent is physically modified by the stirring mechanism, and the physically modified mixture is obtained.

[0021] The physically modified mixture and the additive are input into the second reaction cylinder, the physically modified mixture and the additive are chemically modified by the stirring mechanism, and the modified asphalt is obtained.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] 1. The modified asphalt automatic preparation device, through the cooperation of the adding mechanism, the mixing mechanism and the reaction mechanism, the adding quality of the modifier and the crushing work are controlled by the adding mechanism in the process of asphalt preparation, so that the working effect of the device is guaranteed; the asphalt and the modifier are fully mixed in advance by the mixing mechanism, the asphalt and the modifier are physically modified by the first reaction cylinder, and then the two are input into the second reaction cylinder for chemical modification, so that the two are always in a high temperature state, the waste heat is avoided, and the preparation efficiency of the modified asphalt is improved, so that the practicability of the device is guaranteed;

[0024] 2. The modified asphalt automatic preparation device, through the cooperation of the adding mechanism, the mixing mechanism and the reaction mechanism, the adding quality of the modifier and the crushing work are controlled by the adding mechanism in the process of asphalt preparation, so that the working effect of the device is guaranteed; the asphalt and the modifier are fully mixed in advance by the mixing mechanism, the asphalt and the modifier are physically modified by the first reaction cylinder, and then the two are input into the second reaction cylinder for chemical modification, so that the two are always in a high temperature state, the waste heat is avoided, and the preparation efficiency of the modified asphalt is improved, so that the practicability of the device is guaranteed;

[0025] 3. The modified asphalt automatic preparation device, through the cooperation of the adding mechanism, the mixing mechanism and the reaction mechanism, the adding quality of the modifier and the crushing work are controlled by the adding mechanism in the process of asphalt preparation, so that the working effect of the device is guaranteed; the asphalt and the modifier are fully mixed in advance by the mixing mechanism, the asphalt and the modifier are physically modified by the first reaction cylinder, and then the two are input into the second reaction cylinder for chemical modification, so that the two are always in a high temperature state, the waste heat is avoided, and the preparation efficiency of the modified asphalt is improved, so that the practicability of the device is guaranteed;

[0026] 4. The modified asphalt automatic preparation device, through the cooperation of the adding mechanism, the mixing mechanism and the reaction mechanism, the adding quality of the modifier and the crushing work are controlled by the adding mechanism in the process of asphalt preparation, so that the working effect of the device is guaranteed; the asphalt and the modifier are fully mixed in advance by the mixing mechanism, the asphalt and the modifier are physically modified by the first reaction cylinder, and then the two are input into the second reaction cylinder for chemical modification, so that the two are always in a high temperature state, the waste heat is avoided, and the preparation efficiency of the modified asphalt is improved, so that the practicability of the device is guaranteed; BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a three-dimensional structure schematic diagram of a modified asphalt automatic preparation device provided by the embodiment of the application;

[0028] Figure 2 It is a front view structure schematic diagram of the adding mechanism and the first controller provided by the embodiment of the application;

[0029] Figure 3 It is a front view sectional schematic diagram of the adding mechanism provided by the embodiment of the application;

[0030] Figure 4 It is a three-dimensional structure schematic diagram of the crushing gear provided by the embodiment of the application;

[0031] Figure 5 It is a three-dimensional structure schematic diagram of the mixing mechanism and the second controller provided by the embodiment of the application;

[0032] Figure 6 It is a front view sectional schematic diagram of the mixing mechanism provided by the embodiment of the application;

[0033] Figure 7is a schematic view of a perspective structure of the reaction mechanism and the third controller according to an embodiment of the present application;

[0034] Figure 8 is a schematic view of a front view cross section of the reaction mechanism according to an embodiment of the present application.

[0035] In the figure: 1, adding mechanism; 2, mixing mechanism; 3, reaction mechanism; 4, first box body; 41, first mass disc; 5, crushing box; 51, crushing gear; 6, second box body; 61, second mass disc; 7, connecting pipe; 8, first controller; 81, first mass display screen; 82, second mass display screen; 83, total display screen; 84, first valve switch button; 85, first rotating speed adjusting button; 86, gear spacing adjusting button; 9, rotating drum; 91, first heating resistance; 92, output pipe; 93, inner drum; 10, second injection pipe; 11, first injection pipe; 12, first flue gas collector; 13, second controller; 131, rotating speed display screen; 132, temperature display screen; 133, second rotating speed adjusting button; 134, temperature adjusting button; 14, support; 15, box body; 151, first-stage reaction drum; 152, second-stage reaction drum; 153, heating rotating shaft; 154, blade; 155, temperature probe; 16, storage box; 17, discharge pipe; 18, second flue gas collector; 19, adding port; 20, third controller; 201, first-stage control panel; 202, second-stage control panel; 203, third valve switch button. DETAILED DESCRIPTION

[0036] The application will be further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Embodiment one:

[0040] As shown in Figure 1 and Figure 8 The present application provides a kind of modified asphalt automatic preparation device, including adding mechanism 1, the adding mechanism 1 one end is equipped with mixing mechanism 2, the mixing mechanism 2 one end is equipped with reaction mechanism 3;The adding mechanism 1 is used to crush and weigh work to modifier, the mixing mechanism 2 is used to mix work to hot asphalt and the modifier after crushing, the reaction mechanism 3 is used to the hot asphalt, the modifier after crushing and additive reaction work;The reaction mechanism 3 includes box 15, the box 15 is equipped with intercommunication first-stage reaction cylinder 151 and secondary reaction cylinder 152, the first-stage reaction cylinder 151 and the secondary reaction cylinder 152 are equipped with stirring mechanism inside, the secondary reaction cylinder 152 outer wall is equipped with adding port 19, the adding port 19 one end extends to the outside of the box 15.

[0041] Specifically, when working, when the preparation of modified asphalt is needed, the raw material of modifier is input into adding mechanism 1, adding mechanism 1 is weighed and crushed to the raw material of modifier, according to actual work needs, the raw material of a certain quality of modifier is crushed, a certain amount of crushed modifier is input into the inside of mixing mechanism 2, and a certain amount of molten hot asphalt is input into the inside of mixing mechanism 2, the molten hot asphalt and the modifier are mixed by mixing mechanism 2, when the mixing work of the two is completed, the mixture is input into the first-stage reaction cylinder 151 in reaction mechanism 3, the mixture is stirred by the stirring mechanism inside the first-stage reaction cylinder 151, so that asphalt and modifier complete physical modification, and then the asphalt and modifier that complete physical modification are input into the secondary reaction cylinder 152, while a certain amount of additive is added to the secondary reaction cylinder 152, the stirring mechanism is stirred to asphalt, modifier and additive, so that asphalt and modifier complete chemical stability reaction, thereby completing the preparation of modified asphalt.

[0042] The adding mechanism 1, the mixing mechanism 2 and the reaction mechanism 3 are matched, in the process of preparing asphalt, the adding mechanism 1 is used for controlling the adding quality of the modifier and the crushing work, so that the device working effect is guaranteed; the asphalt and the modifier are mixed in advance by the mixing mechanism 2, after the physical modification of the asphalt and the modifier is carried out by the first reaction cylinder 151, the two are input into the second reaction cylinder 152 for chemical modification, so that the two are always in a high temperature state, the waste heat is avoided, and the preparation efficiency of the modified asphalt is improved.

[0043] As Figures 2-4 shown, one embodiment, the adding mechanism 1 includes a first box body 4 and a crushing box 5, the first box body 4 top is equipped with the movable connection upper cover, the first box body 4 is communicated with the crushing box 5 through the connecting pipe 7, the connecting pipe 7 is equipped with the first valve, the crushing box 5 bottom is equipped with the second box body 6, the crushing box 5 is communicated with the second box body 6, the first box body 4 inside is equipped with the first mass disc 41, the second box body 6 inside is equipped with the second mass disc 61, the crushing box 5 inside both sides are rotatably connected with the crushing gear 51, the crushing box 5 is equipped with the first power mechanism for driving the crushing gear 51 rotation, the crushing box 5 is equipped with the adjusting mechanism for driving the first power mechanism sliding, two the crushing gear 51 cooperation, for the modifier is crushed, the second box body 6 bottom is equipped with the discharge pipe, the discharge pipe is equipped with the second valve, the adding mechanism 1 still includes the first controller 8, the first mass disc 41, the second mass disc 61, the first valve, the second valve, the first power mechanism and the adjusting mechanism are electrically connected with the first controller 8, the first controller 8 is equipped with the first mass display screen 81, the second mass display screen 82, the total display screen 83, the first valve switch button 84, the first rotating speed adjusting button 85 and the gear spacing adjusting button 86.

[0044] Specifically, optionally, the first mass disc 41 is located above the connecting pipe 7 and communicates with the connecting pipe 7, the first valve is located on one side of the first mass disc 41, the second mass disc 61 communicates with the discharge pipe, and the second valve is located on one side of the second mass disc 61; when the adding mechanism 1 works, at this time, the first valve and the second valve are both in the closed state, the upper cover on the first box body 4 is opened, and the modifier is placed above the first mass disc 41, the quality of the modifier is detected in real time through the first mass disc 41, and the quality is read through the first quality display screen 81 on the first controller 8, when the quality of the required modifier meets the requirements, the adding of the modifier is stopped, and the upper cover is restored to the original position, according to the actual work requirement, the adjusting mechanism is controlled to work through the control gear spacing adjusting button 86, so as to drive the two first power mechanisms to approach or move away from each other, so as to control the spacing of the two crushing gears 51, so that the crushed modifier can meet the target required particle size range, the first power mechanism is controlled through the first rotating speed adjusting button 85, so as to control the rotating speed of the crushing gear 51, then the first valve is opened through the first valve switch button 84, so that the modifier on the first mass disc 41 can enter the crushing box 5 through the connecting pipe 7 to carry out the crushing work, the crushed modifier falls on the second mass disc 61 in the second box body 6, and the quality of the modifier is detected again through the second mass disc 61, and the quality is read through the second quality display screen 82, when the quality of the crushed modifier meets the requirements, the second valve is opened, so that the crushed modifier on the second mass disc 61 falls into the inside of the discharge pipe; optionally, the minimum spacing between the two crushing gears 51 can reach 0.015mm, and the total display screen 83 is used for displaying the parameters such as the spacing of the crushing gears 51 and the current rotating speed of the crushing gears 51; the modifier adding quality is precisely controlled through the cooperation of the crushing gears 51, the first mass disc 41 and the second mass disc 61, and the modifier with a certain particle size range can be selected according to the performance requirements of the modified asphalt, so as to realize the automatic and precise control of the modifier adding quality and particle size.

[0045] As Figures 5-6As shown, one embodiment, the mixing mechanism 2 comprises two supports 14, two said supports 14 between the rotating connection drum 9, the inside of the drum 9 is provided with the inner cylinder 93, one of the said support 14 is provided for driving the rotating drum 9 rotating second power mechanism, the outer wall of the drum 9 side is provided with a second injection pipe 10 and the first injection pipe 11, the first injection pipe 11 is located on the side of the discharge pipe and matched with the discharge pipe, the first injection pipe 11 and the second injection pipe 10 are communicated with the inner cylinder 93, the outer wall of the inner cylinder 93 is provided with a first heating resistor 91, the top of the first reaction cylinder 151 is provided with a communication pipe, the outer wall of the drum 9 on the side of the communication pipe is provided with an output pipe 92, the output pipe 92 is communicated with the inner cylinder 93, the inner cylinder 93 is communicated with the first reaction cylinder 151 through the output pipe 92 and the communication pipe, the first injection pipe 11, the second injection pipe 10 and the output pipe 92 are provided with the fourth valve, the both ends of the drum 9 are respectively provided with the first flue gas collector 12 and the second controller 13, the first heating resistor 91 and the second power mechanism are electrically connected with the second controller 13, the second controller 13 is provided with rotating speed display screen 131, temperature display screen 132, second rotating speed adjusting button 133 and temperature adjusting button 134, two said supports 14 are respectively arranged on the top of the box 15 both sides.

[0046] Specifically, the support 14 is used to support the rotating drum 9, before the mixing mechanism 2 starts to work, the first injection pipe 11 is located at one side of the discharge pipe and is connected with the discharge pipe, the output pipe 92 is located at one side of the communication pipe and is connected with the communication pipe, through the temperature adjusting button 134, the first heating resistor 91 is controlled to heat up, so that the inner drum 93 is in a high temperature environment, when the work starts, the fourth valves in the first injection pipe 11 and the second injection pipe 10 are opened, after the modified modifier enters the inside of the discharge pipe, the modified modifier enters the inside of the inner drum 93 through the first injection pipe 11, and then the molten hot pitch is poured into the inside of the second injection pipe 10, because the quality of the modifier is certain, the quality of the molten hot pitch poured is certain, so as to ensure the adding ratio of the two, therefore, the molten hot pitch does not need to be manually added, when the molten hot pitch and the modified modifier are added completely, the fourth valves in the first injection pipe 11 and the second injection pipe 10 are closed, the second power mechanism starts to work through the second speed adjusting button 133 in the second controller 13, so that the rotating drum 9 rotates at a certain speed, and the molten hot pitch and the modified modifier are mixed, during the rotation of the rotating drum 9, the first injection pipe 11 and the discharge pipe are not connected, the output pipe 92 and the communication pipe are not connected, the first flue gas collector 12 collects the flue gas generated in the mixing work, so as to avoid affecting the working environment around the device, the speed of the rotating drum 9 can be observed through the speed display screen 131, and the temperature of the first heating resistor 91 can be observed through the temperature display screen 132, after the molten hot pitch and the modified modifier are mixed at high temperature for a period of time, the mixing work is completed, the second power mechanism drives the rotating drum 9 to rotate to the original position, the first injection pipe 11 and the discharge pipe are connected again, the output pipe 92 and the communication pipe are connected again, at this time, the fourth valve in the output pipe 92 is opened, the pitch and the modified modifier in the inner drum 93 can enter the inside of the output pipe 92, and then enter the inside of the first reaction drum 151 through the communication pipe.

[0047] As Figures 7-8As shown in one embodiment, the stirring mechanism comprises two heating rotary shafts 153, each of which is rotatably connected to the inner wall of the first reaction cylinder 151 and the second reaction cylinder 152, and each of the first reaction cylinder 151 and the second reaction cylinder 152 is provided with a third power mechanism for driving the rotation of the heating rotary shaft 153. The outer wall of the heating rotary shaft 153 is sleeved with a blade 154, and the outer wall of the blade 154 is provided with a second heating resistor. The outer wall of the first reaction cylinder 151 and the outer wall of the second reaction cylinder 152 are each provided with a temperature probe 155. The first reaction cylinder 151 and the second reaction cylinder 152 are connected through a connecting pipe, and the connecting pipe is provided with a third valve. The outer wall of the box body 15 is provided with a second flue gas collector 18 and a third controller 20. The second flue gas collector 18 is in communication with the first reaction cylinder 151 and the second reaction cylinder 152. The heating rotary shaft 153, the third power mechanism, the second heating resistor, the temperature probe 155 and the third valve are electrically connected to the third controller 20. The third controller 20 is provided with a first control panel 201, a second control panel 202 and a third valve switch button 203.

[0048] Specifically, before the reaction mechanism 3 starts to work, the heating of the rotating shaft 153 and the second heating resistor is controlled by the first control panel 201 on the third controller 20, so that the first reaction cylinder 151 and the blade 154 are kept in a high temperature state, the third valve is in a closed state, when the work starts, the mixed asphalt and modifier enter the inside of the first reaction cylinder 151, the rotating control of the rotating shaft 153 is controlled by the first control panel 201, so that the blade 154 is driven to rotate at a high speed, the asphalt and the modifier are stirred in the high temperature environment, so that the asphalt and the modifier complete physical modification, when the asphalt and the modifier complete physical modification, the third valve is opened by the third valve switch button 203, so that the asphalt and the modifier in the first reaction cylinder 151 enter the second reaction cylinder 152, and the additive is added into the second reaction cylinder 152 through the adding port 19, and the additive is added in a fixed amount, the heating of the rotating shaft 153 and the second heating resistor is controlled by the second control panel 202, so that the second reaction cylinder 152 and the blade 154 are kept in a heat preservation state, and the blade 154 rotates at a high speed, so that the asphalt and the modifier complete chemical stable reaction, and modified asphalt is obtained, after the physical modification of the asphalt and the modifier, the two can be input into the second reaction cylinder 152 for chemical modification in time, so that the waste heat of the two during the physical modification is avoided, and the working efficiency of the chemical modification is further improved, and the working efficiency of the whole device is ensured; during the reaction of the modified asphalt, the temperature in the first reaction cylinder 151 and the second reaction cylinder 152 is monitored by the temperature probe 155, so that whether the real-time reaction mixing temperature is in the set target temperature range is determined; meanwhile, the flue gas generated when the hot asphalt, the modifier and the additive and the like are physically and chemically modified is collected by the second flue gas collector 18, so as to prevent the flue gas from polluting the atmospheric environment; the first reaction cylinder 151 and the second reaction cylinder 152 are arranged, so that the physical modification of the asphalt can be realized, and the chemical stable modification of the asphalt can also be realized, and the second heating resistor arranged on the surface of the blade 154 can provide a high temperature environment, and the stirring efficiency of the modified asphalt is improved.

[0049] In an embodiment, the box 15 is provided with a plurality of supporting columns at the bottom, and the second reaction cylinder 152 is communicated with a storage box 16 through a discharge pipe 17 at the bottom, and the supporting columns are used for supporting the box 15; after the physical and chemical modification of the asphalt and the modifier is completed, the fifth valve in the discharge pipe 17 can be opened, so that the modified asphalt can flow into the inside of the storage box 16 for collection work.

[0050] The first flue gas collector 12 and the second flue gas collector 18 are arranged, so that the flue gas generated during the preparation of the modified asphalt can be collected in real time, and the environmental protection effect is achieved.

[0051] Embodiment two:

[0052] The application provides an automatic modified asphalt preparation method, which adopts the automatic modified asphalt preparation device described in embodiment one, and the method comprises the following steps:

[0053] The modified agent raw material is input into the adding mechanism 1, the modified agent raw material is crushed and weighed through the adding mechanism 1, and the crushed modified agent is obtained;

[0054] The hot asphalt and the crushed modified agent are input into the mixing mechanism 2, the hot asphalt and the crushed modified agent are mixed through the mixing mechanism 2, and the mixture is obtained;

[0055] The mixture is input into the first-stage reaction cylinder 151, the mixture of the hot asphalt and the crushed modified agent is physically modified through the stirring mechanism, and the physically modified mixture is obtained;

[0056] The physically modified mixture and the auxiliary agent are input into the second-stage reaction cylinder 152, the physically modified mixture and the auxiliary agent are chemically modified through the stirring mechanism, and the modified asphalt is obtained.

[0057] The above is only the preferred embodiment of the application, and it should be pointed out that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the application, and these improvements and modifications should also be considered as the protection scope of the application.

Claims

1. An apparatus for the automated production of modified bitumen, characterized in that, Including adding mechanism (1), one end of adding mechanism (1) is equipped with mixing mechanism (2), one end of mixing mechanism (2) is equipped with reaction mechanism (3); The adding mechanism (1) is used for crushing and weighing the modifier, the mixing mechanism (2) is used for mixing hot asphalt and the crushed modifier, and the reaction mechanism (3) is used for reacting the hot asphalt, the crushed modifier and the additive; The reaction mechanism (3) includes a box body (15), a first-stage reaction cylinder (151) and a second-stage reaction cylinder (152) are arranged in the box body (15) and are connected, stirring mechanisms are arranged in the first-stage reaction cylinder (151) and the second-stage reaction cylinder (152), an adding port (19) is arranged on the outer wall of the second-stage reaction cylinder (152), and one end of the adding port (19) extends to the outside of the box body (15); The adding mechanism (1) includes a first box body (4) and a crushing box (5), the top of the first box body (4) is provided with a movably connected upper cover, the first box body (4) is communicated with the crushing box (5) through a connecting pipe (7), a first valve is arranged in the connecting pipe (7), the bottom of the crushing box (5) is provided with a second box body (6), the crushing box (5) is communicated with the second box body (6), a first mass disc (41) is arranged in the first box body (4), a second mass disc (61) is arranged in the second box body (6), powdering gears (51) are rotatably connected to the two sides in the crushing box (5), a first power mechanism for driving the powdering gears (51) to rotate is arranged in the crushing box (5), an adjusting mechanism for driving the first power mechanism to slide is arranged in the crushing box (5), the two powdering gears (51) are matched and used for crushing the modifier, a discharge pipe is arranged at the bottom of the second box body (6), and a second valve is arranged in the discharge pipe; The mixing mechanism (2) includes two supports (14), a rotating drum (9) is rotatably connected between the two supports (14), an inner drum (93) is arranged on the inner side of the rotating drum (9), a second power mechanism for driving the rotating drum (9) to rotate is arranged on one of the supports (14), a second injection pipe (10) and a first injection pipe (11) are arranged on one side of the outer wall of the rotating drum (9), the first injection pipe (11) is located on one side of the discharge pipe and is matched with the discharge pipe, the first injection pipe (11) and the second injection pipe (10) are communicated with the inner drum (93), a first heating resistor (91) is arranged on the outer wall of the inner drum (93), a communicating pipe is arranged at the top of the first-stage reaction cylinder (151), an output pipe (92) is arranged on one side of the communicating pipe on the outer wall of the rotating drum (9), the output pipe (92) is communicated with the inner drum (93), the inner drum (93) is communicated with the first-stage reaction cylinder (151) through the output pipe (92) and the communicating pipe, and fourth valves are arranged in the first injection pipe (11), the second injection pipe (10) and the output pipe (92). The stirring mechanism comprises heating rotating shafts (153), two of which are respectively rotationally connected with the inner walls of the first reaction cylinder (151) and the second reaction cylinder (152), the first reaction cylinder (151) and the second reaction cylinder (152) are both internally provided with third power mechanisms for driving the rotation of the heating rotating shafts (153), the outer walls of the heating rotating shafts (153) are sleeved with blades (154), the outer walls of the blades (154) are provided with second heating resistors, the outer walls of the first reaction cylinder (151) and the second reaction cylinder (152) are both provided with temperature probes (155), the first reaction cylinder (151) and the second reaction cylinder (152) are communicated through a connecting pipe, and the connecting pipe is provided with a third valve.

2. The modified bitumen automated production device of claim 1, wherein, The adding mechanism (1) further comprises a first controller (8), the first mass disc (41), the second mass disc (61), the first valve, the second valve, the first power mechanism and the adjusting mechanism are all electrically connected with the first controller (8), and the first controller (8) is provided with a first mass display screen (81), a second mass display screen (82), a total display screen (83), a first valve switch button (84), a first rotating speed adjusting button (85) and a gear spacing adjusting button (86).

3. The modified bitumen automated production device of claim 1, wherein, The rotary drum (9) is rotationally provided with a first flue gas collector (12) and a second controller (13) at two ends, the first heating resistor (91) and the second power mechanism are both electrically connected with the second controller (13), and the second controller (13) is provided with a rotating speed display screen (131), a temperature display screen (132), a second rotating speed adjusting button (133) and a temperature adjusting button (134).

4. The modified bitumen automated production device of claim 1, wherein, Two of the supports (14) are arranged on the two sides of the top of the box body (15).

5. The modified bitumen automated production apparatus of claim 4, wherein, The outer wall of the box body (15) is provided with a second flue gas collector (18) and a third controller (20), the second flue gas collector (18) is communicated with the first reaction cylinder (151) and the second reaction cylinder (152), the heating rotating shaft (153), the third power mechanism, the second heating resistor, the temperature probe (155) and the third valve are all electrically connected with the third controller (20), and the third controller (20) is provided with a first control panel (201), a second control panel (202) and a third valve switch button (203).

6. The modified bitumen automated production device of claim 1, wherein, The bottom of the box body (15) is provided with a plurality of supporting columns, the bottom of the second reaction cylinder (152) is communicated with a storage box (16) through a discharge pipe (17).

7. A method for automatically producing a modified asphalt using the apparatus for automatically producing a modified asphalt according to any one of claims 1 to 6, characterized by, The method comprises: The modified agent raw material is input into the adding mechanism (1), the modified agent raw material is crushed and weighed by the adding mechanism (1), and the crushed modified agent is obtained; The hot pitch and the crushed modified agent are input into the mixing mechanism (2), the mixing mechanism (2) is used for mixing the hot pitch and the crushed modified agent, and a mixture is obtained; The mixture is input into the primary reaction cylinder (151), the mixture of hot pitch and the crushed modifier is physically modified by a stirring mechanism, and a physically modified mixture is obtained; The physically modified mixture and the auxiliary agent are input into the secondary reaction cylinder (152), the physically modified mixture and the auxiliary agent are chemically modified by a stirring mechanism, and modified pitch is obtained.

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