Automatic stirring device for modifying viscous asphalt

Abstract

The utility model relates to the technical field of modified lake asphalt stirring, in particular to an automatic stirring device for modifying viscous asphalt, which comprises a base, a top plate and a control panel, the top plate is fixedly mounted at the top end of the base, and a viscous asphalt stirring container positioning structure is arranged above the base. And a viscous asphalt uniform and efficient stirring structure is arranged below the top plate. According to the automatic stirring device for modifying the viscous asphalt, the stirring shaft and the motor adopt a separable design, and the mounting angles of upper and lower blades are opposite, so that the asphalt can be pushed from bottom to top and guided from top to bottom to form vertical circulation, and the stirring shaft can be driven to rotate at a high speed after the motor is connected with a power supply and is started; the stirring shaft utilizes two turbine blades on the outer side to stir asphalt on the inner side of the stirring container, by designing or improving the stirring device, under the condition that additives such as rubber powder are added, rapid stirring of TLA natural lake asphalt is achieved, and the TLA natural lake asphalt is kept in a uniform state.

Description

Technical Field

[0001] This utility model relates to the field of modified lake asphalt mixing technology, specifically an automatic mixing device for modifying viscous asphalt. Background Technology

[0002] TLA natural lake asphalt originates from Lake Peach in Trinidad and Tobago, South America. It is the world's most famous, widely used, and oldest natural lake asphalt. Natural lake asphalt is an excellent modifier, exhibiting good compatibility with ordinary asphalt and possessing properties unmatched by ordinary petroleum asphalt. It has a high molecular weight and high degree of polymerization, resulting in superior anti-stripping properties and adhesion to aggregates. It does not soften in hot summers or crack in harsh winters, exhibits strong water stability, good waterproofing, and strong resistance to oil, acid, and microbial corrosion. It also has strong antioxidant properties, improving the anti-aging performance of asphalt pavements.

[0003] For example, the authorization announcement number "CN221182479U" is titled "A Mixing Device for Modified Lake Asphalt." The device features a mixing blade at the shaft of a planetary gear. This blade is used to mix the modified lake asphalt in the mixing tank. It has a simple structure and small size, making it suitable for preparing modified lake asphalt samples. Currently, mixing devices for modified lake asphalt, where TLA natural lake asphalt remains solid at room temperature, exhibit significant segregation. Each use requires heating and mixing to ensure uniformity. Adding additives such as rubber powder increases the mixing difficulty. Existing mixing devices are mostly separate types, which are not securely fixed during high-speed mixing, resulting in poor safety. Furthermore, unsuitable mixing blades can lead to segregation and uneven mixing. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor safety factor and unsuitable mixing blades in existing mixing devices for modified lake asphalt, which can lead to segregation and uneven mixing. Therefore, this invention proposes an automatic mixing device for modifying viscous asphalt.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design an automatic mixing device for modifying viscous asphalt, including a base, a top plate, and a control panel. The top plate is fixedly installed on the top of the base, and the control panel is fixedly installed on the front end of the top plate. A viscous asphalt mixing container positioning structure is provided above the base, and a viscous asphalt uniform and efficient mixing structure is provided below the top plate.

[0007] Preferably, the positioning structure of the viscous asphalt mixing container includes a heating container and slots. Two slots are fixedly opened on the top of the base. A locking block is slidably connected to the inner side of the slot. The top of the two locking blocks is fixedly connected to the heating container. A mixing container is movably placed inside the heating container. A top cover is threadedly connected to the top of the mixing container.

[0008] Preferably, the viscous asphalt uniform and efficient mixing structure includes a motor and reserved holes. The output shaft of the motor is rotatably connected to the lower end of the top plate. A mixing shaft is movably connected to the lower end of the motor. A locking bolt is threaded to the outer side of the top end of the mixing shaft. The two reserved holes are fixedly opened at the top end of the top cover. Two turbine blades are fixedly sleeved on the outer wall of the mixing shaft.

[0009] Preferably, the stirring shaft is rotatably inserted into the inside of the reserved hole, the two turbine blades are arranged in opposite directions, and the motor is electrically connected to the control panel via wires.

[0010] Preferably, a clamping clip is fixedly connected to the lower end of the top plate, and a temperature sensor is movably connected to the lower end of the clamping clip. The outer side of the temperature sensor is slidably connected to the inner side of the reserved hole, and the upper part of the temperature sensor is electrically connected to the control panel through a wire.

[0011] Preferably, one side of the outer wall of the base is hinged to an opening door.

[0012] Preferably, an observation window is fixedly installed on the outer wall of the opening door.

[0013] The present invention proposes an automatic mixing device for modifying viscous asphalt, which has the following advantages: the mixing shaft and the motor are designed to be separable, and the upper and lower blades are installed at opposite angles, so that the asphalt can be pushed from bottom to top and guided from top to bottom to form an up-and-down circulation. In this way, when the motor is connected to the power supply and started, it can drive the mixing shaft to rotate at high speed. The mixing shaft uses two turbine blades on the outside to mix the asphalt inside the mixing container. By designing or improving the mixing device, TLA natural lake asphalt can be quickly mixed and kept in a uniform state when additives such as rubber powder are added. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 for Figure 1 A frontal sectional view;

[0016] Figure 3 for Figure 1 A schematic diagram of the top sectional view;

[0017] Figure 4for Figure 2 Enlarged sectional view of section A in the middle;

[0018] Figure 5 for Figure 2 Enlarged sectional view of section B in the middle;

[0019] Figure 6 for Figure 3 Enlarged sectional view of section C in the middle;

[0020] Figure 7 This is a three-dimensional schematic diagram of the turbine blade structure of this utility model.

[0021] In the diagram: 1. Base, 2. Top plate, 3. Control panel, 4. Positioning structure for viscous asphalt mixing container, 41. Heating container, 42. Mixing container, 43. Top cover, 44. Locking block, 45. Locking groove, 5. Uniform and efficient mixing structure for viscous asphalt, 51. Motor, 52. Mixing shaft, 53. Locking bolt, 54. Reserved hole, 55. Turbine blade, 61. Clamping clamp, 62. Temperature sensor, 7. Opening door, 8. Observation window. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Example 1:

[0024] Please see Figure 1-6 In this embodiment, an automatic mixing device for modifying viscous asphalt includes a base 1, a top plate 2, and a control panel 3. Both the top plate 2 and the base 1 are made of stainless steel. The base 1 and the top plate 2 form a frame structure, and the frame is designed to be fixed on three sides and openable on one side, so as to facilitate the easy placement and removal of containers. The top plate 2 is fixedly installed on the top of the base 1, and the control panel 3 is fixedly installed on the front end of the top plate 2. The control panel 3 is a relatively mature existing technology. The control panel 3 includes a display screen, a thermometer, a speedometer, and a control switch. It can work with the temperature sensor 62 and the motor 51 to display the speed, time, and temperature information in real time, and can realize the functions of timing, temperature control, and speed adjustment. A viscous asphalt mixing container positioning structure 4 is provided above the base 1, and a viscous asphalt uniform and efficient mixing structure 5 is provided below the top plate 2.

[0025] The positioning structure 4 of the viscous asphalt mixing container includes a heating container 41 and slots 45. Two slots 45 are fixedly formed on the top of the base 1. A locking block 44 is slidably connected to the inner side of each slot 45. The mixing container 42 is designed as a stainless steel cylindrical container (the outer diameter of the mixing container is 18cm, the height is 22cm, and the internal depth of the heating container is 18cm). Slots 45 are provided above the base 1. Slots 45 are trapezoidal grooves, which, when combined with the trapezoidal locking block 44 on the bottom surface of the heating container 41, can be inserted laterally into the slots 45 for fixation. The tops of the two locking blocks 44 are fixedly connected to the heating container 41. The inner wall of the container 42 is polished and coated with a polytetrafluoroethylene non-stick layer. The heating container 41 is a constant temperature heating jacket arranged outside the stirring container 42. It is electrically heated to generate a certain temperature after being powered on, which can achieve the purpose of keeping the sample warm and preventing it from sticking to the container. The stirring container 42 is movably placed inside the heating container 41. The top of the stirring container 42 is threadedly connected to the top of the stirring container 42. A high-temperature resistant container cover 43 that is splash-proof, movable, and observable is added to the top of the stirring container 42. The top cover 43 can be set as two semi-circles, with a small hole in the middle and on the side of the top cover. The small holes are reserved holes 54.

[0026] The uniform and efficient mixing structure 5 for viscous asphalt includes a motor 51 and a pre-drilled hole 54. The output shaft of the motor 51 is rotatably connected to the lower end of the top plate 2. The motor 51 is a servo motor; when selecting a servo motor, any motor model that meets the usage requirements can be chosen. The upper part of the motor 51 is located inside the top plate 2, and a through hole for heat dissipation is opened on the rear side of the top plate 2. The lower end of the motor 51 is movably connected to a mixing shaft 52. The lower end of the motor 51 has a connecting shaft that can rotate after being powered on. A locking bolt 53 is threaded to the outer end of the top of the mixing shaft 52. The locking bolt 53 can be inserted laterally into the connection between the lower end of the motor 51 connecting shaft and the mixing shaft 52, and then locked with a nut. The locking bolt 53 allows for convenient disassembly of the mixing shaft 52 below. Continuing the cleaning process, two pre-drilled holes 54 are fixedly opened at the top of the top cover 43. Two turbine blades 55 are fixedly sleeved on the outer wall of the stirring shaft 52. The stirring shaft 52 and the motor 51 adopt a separable design. The turbine blades 55 on the stirring shaft 52 are made of two stainless steel blades, inclined at about 30°. The diameter of the upper blade is 8cm and it is 15cm from the bottom of the container. The diameter of the lower blade is 10cm and it is 3cm from the bottom of the container. There are 4 blades on both the upper and lower sides. The installation angles are opposite, so that the asphalt can be pushed from bottom to top and guided from top to bottom to form an up-and-down circulation. In this way, when the motor 51 is connected to the power supply and started, it can drive the stirring shaft 52 to rotate at high speed. The stirring shaft 52 uses the two outer turbine blades 55 to stir the asphalt inside the stirring container 42.

[0027] The mixing shaft 52 and the motor 51 are designed to be separable. The turbine blades 55 on the mixing shaft 52 are made of two stainless steel blades, tilted at about 30°. The upper blade has a diameter of 8cm and is 15cm from the bottom of the container, while the lower blade has a diameter of 10cm and is 3cm from the bottom of the container. The upper and lower blades are installed at opposite angles, which can both push the asphalt from bottom to top and guide the asphalt from top to bottom, forming an up-and-down circulation. When the motor 51 is connected to the power supply and started, it can drive the mixing shaft 52 to rotate at high speed. The mixing shaft 52 uses the two outer turbine blades 55 to mix the asphalt inside the mixing container 42. By designing or improving the mixing device, and with the addition of additives such as rubber powder, the TLA natural lake asphalt can be quickly mixed and kept in a uniform state.

[0028] The stirring shaft 52 is rotatably inserted into the inside of the reserved hole 54, the two turbine blades 55 are arranged in opposite directions, and the motor 51 is electrically connected to the control panel 3 through wires.

[0029] A clamping clip 61 is fixedly connected to the lower end of the top plate 2. The clamping clip 61 can be a common laboratory stainless steel clamp. The clamping clip 61 can manually fix the temperature sensor 62 above the stirring container 42. Then, the lower end of the temperature sensor 62 enters the inside of the stirring container 42 through the reserved hole 45 to measure the temperature. The lower end of the clamping clip 61 is movably connected to the temperature sensor 62. The temperature sensor is a movable temperature sensor. The lower end is inserted into the small hole 45 next to the top of the stirring container 42. The temperature sensor 62 is 2cm away from the container wall. The outer side of the temperature sensor 62 is slidably connected to the inner side of the reserved hole 54. The upper part of the temperature sensor 62 is electrically connected to the control panel 3 through a wire.

[0030] An opening door 7 is hinged to one side of the outer wall of the base 1. The opening door 7 can be flipped open along the front end of the base 1 using the hinge. The outer side of the opening door 7 is provided with a glass observation window 8 for convenience. The observation window 8 is fixedly installed on the outer wall of the opening door 7.

[0031] Working principle:

[0032] The automatic mixing device for modifying viscous asphalt is used for mixing TLA natural lake asphalt. Currently, the price of TLA natural lake asphalt modified asphalt is lower than that of domestic SBS modified asphalt. Moreover, asphalt pavement paved with TLA natural lake asphalt is durable and effectively reduces the maintenance cost of asphalt pavement. TLA natural lake asphalt modified asphalt is easy and quick to produce, without the need for special grinding equipment. It only requires mixing different proportions of base asphalt in a mixing plant to produce different modified asphalts.

[0033] The main method is to design or improve the mixing device to achieve rapid mixing of TLA natural lake asphalt, and keep it in a uniform state, when additives such as rubber powder are added.

[0034] Main components of an automatic mixing device for modifying viscous asphalt:

[0035] Both the top plate 2 and the base 1 are made of stainless steel. The base 1 and the top plate 2 form a frame structure. The frame is designed to be fixed on three sides and openable on one side, which makes it easy to put the container in and take it out. The top plate 2 is fixedly installed on the top of the base 1. The control panel 3 is fixedly installed on the front of the top plate 2. The control panel 3 is a relatively mature existing technology. The control panel 3 includes a display screen, a thermometer, a speedometer and a control switch. It can work with the temperature sensor 62 and the motor 51 to display the speed, time and temperature information in real time, and can realize the functions of timing, temperature control and speed adjustment.

[0036] Container structure for automatic mixing devices used for modifying viscous asphalt:

[0037] The stirring container 42 is designed as a stainless steel cylindrical container. A slot 45 is provided above the base 1. The slot 45 is a trapezoidal slot. The trapezoidal block 44 on the bottom of the heating container 41 can be inserted horizontally into the slot 45 to achieve fixation. The inner wall of the stirring container 42 is polished and coated with a polytetrafluoroethylene non-stick layer. The heating container 41 is a constant temperature heating jacket arranged outside the stirring container 42. It is electrically heated to generate a certain temperature after being powered on, which can achieve the purpose of keeping the sample warm and preventing it from sticking to the container.

[0038] Automatic mixing function of automatic mixing equipment for modifying viscous asphalt:

[0039] The upper part of the motor 51 is located inside the top plate 2. A through hole is opened on the rear side of the top plate 2 to dissipate heat from the motor 51. The lower end of the motor 51 is provided with a connecting shaft that can rotate after being connected to power. The locking bolt 53 can be inserted horizontally into the connection between the lower end of the motor 51 connecting shaft and the stirring shaft 52, and then locked with a nut. The locking bolt 53 can be used to facilitate the disassembly of the stirring shaft 52 below for easy cleaning. The stirring shaft 52 and the motor 51 adopt a separable design. The turbine blades 55 on the stirring shaft 52 are made of two stainless steel turbine blades, inclined at about 30°. The diameter of the upper blade is 8cm and it is 15cm from the bottom of the container. The diameter of the lower blade is 10cm and it is 3cm from the bottom of the container. The upper and lower blades are installed at opposite angles, which can push the asphalt from bottom to top and guide the asphalt from top to bottom, forming an up-and-down circulation. When the motor 51 is connected to the power supply and started, it can drive the stirring shaft 52 to rotate at high speed. The stirring shaft 52 uses the two outer turbine blades 55 to stir the asphalt inside the stirring container 42.

[0040] Automatic mixing device for modifying viscous asphalt with portable temperature measurement function:

[0041] The clamping clip 61 can be a common laboratory stainless steel clamp. The clamping clip 61 allows the temperature sensor 62 to be manually fixed above the stirring container 42. The lower end of the temperature sensor 62 then enters the interior of the stirring container 42 through the pre-drilled hole 45 for temperature measurement. The temperature sensor is a movable type, with its lower end inserted into the small hole 45 next to the top of the stirring container 42. The temperature sensor 62 is 2 cm from the container wall. Although this utility model has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An automatic mixing device for modifying viscous asphalt, comprising a base (1), a top plate (2), and a control panel (3), wherein the top plate (2) is fixedly installed on the top of the base (1), and the control panel (3) is fixedly installed on the front end of the top plate (2), characterized in that: The base (1) is provided with a viscous asphalt mixing container positioning structure (4) above it, and a viscous asphalt uniform and efficient mixing structure (5) is provided below the top plate (2). The viscous asphalt mixing container positioning structure (4) includes a heating container (41) and a slot (45). The two slots (45) are fixedly opened on the top of the base (1). The inner side of the slot (45) is slidably connected to a block (44). The top of the two blocks (44) is fixedly connected to the heating container (41). The mixing container (42) is movably placed inside the heating container (41). The top of the mixing container (42) is threadedly connected to a top cover (43).

2. The automatic mixing device for modifying viscous asphalt according to claim 1, characterized in that: The uniform and efficient mixing structure (5) for viscous asphalt includes a motor (51) and a reserved hole (54). The output shaft of the motor (51) is rotatably connected to the lower end of the top plate (2). The lower end of the motor (51) is movably connected to a mixing shaft (52). A locking bolt (53) is threaded on the outer side of the top end of the mixing shaft (52). The two reserved holes (54) are fixedly opened on the top end of the top cover (43). Two turbine blades (55) are fixedly sleeved on the outer wall of the mixing shaft (52).

3. The automatic mixing device for modifying viscous asphalt according to claim 2, characterized in that: The stirring shaft (52) is rotatably inserted into the inside of the reserved hole (54), the two turbine blades (55) are arranged opposite to each other, and the motor (51) is electrically connected to the control panel (3) through wires.

4. The automatic mixing device for modifying viscous asphalt according to claim 3, characterized in that: The lower end of the top plate (2) is fixedly connected to a clamping clip (61), and the lower end of the clamping clip (61) is movably connected to a temperature sensor (62). The outer side of the temperature sensor (62) is slidably connected to the inner side of the reserved hole (54), and the upper part of the temperature sensor (62) is electrically connected to the control panel (3) through a wire.

5. The automatic mixing device for modifying viscous asphalt according to claim 4, characterized in that: The outer wall of the base (1) is hinged to an opening door (7) via a hinge.

6. The automatic mixing device for modifying viscous asphalt according to claim 5, characterized in that: An observation window (8) is fixedly installed on the outer wall of the opening door (7).

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