Pretreatment device for asphalt additive

Abstract

The utility model relates to the field of asphalt additives, in particular to an asphalt additive pretreatment device which comprises a tank body assembly with a preheating function and a support connected to the periphery of the bottom of the tank body assembly, a feeding bin is connected to one side of the top of the tank body assembly, and a discharging pipe opening is connected to the bottom of the tank body assembly. An inclined filter plate is installed in the tank body assembly, the discharge pipe orifice is located above the higher end of the filter plate, a flow guide channel is arranged at the lower end of the filter plate, and the end, away from the filter plate, of the flow guide channel is connected with a filter assembly. Asphalt is preheated in the tank body assembly, firstly, the asphalt is filtered through the filter plate, impurities in the asphalt are removed, and then the stirring assembly is driven by the driving device to rotate, so that the stirring assembly fully absorbs heat in the tank body assembly, the viscosity of the asphalt additive is reduced, and the pretreatment efficiency of the asphalt additive is fully improved.

Description

Technical Field

[0001] The utility model relates to the field of asphalt additives, in particular to a pretreatment device for asphalt additives. Background Art

[0002] Asphalt additives are substances or materials used to improve the performance of asphalt and asphalt products. These additives can effectively improve the quality of the road surface and improve the crack resistance and anti-aging performance of the road surface. The varieties of asphalt additives include asphalt modifiers, emulsifiers, anti-stripping agents, anti-aging agents, nano-modifiers, etc. Asphalt modifiers are natural or synthetic organic or inorganic materials added to asphalt or asphalt mixtures, which can be melted or dispersed in asphalt to improve or enhance the road performance of asphalt. For example, in order to improve the mechanical properties of asphalt (such as strength and high temperature resistance), polymers, rubbers, resins, etc. may be added. In addition, there are also modified materials specifically used to improve the high temperature resistance of asphalt, and regeneration agents used to restore the performance of aged asphalt. These additives have a wide range of applications, including the construction and maintenance of roads, highways, runways and other paved surfaces. At the same time, according to different application requirements, the manufacturing process of asphalt additives involves heating pretreatment, addition and mixing, homogenization and emulsification treatment, quality control and other links.

[0003] With respect to the above-mentioned related technologies, the inventors found that when manufacturing asphalt additives, it is necessary to filter the asphalt first, filter out the impurities contained therein, and preheat it to reduce its viscosity so that it can fully react with the emulsifier for homogenization and emulsification. However, the traditional operation process has filtration and preheating as separate operation steps, which makes it inconvenient to preheat the asphalt while filtering, thereby reducing the efficiency of the pretreatment and affecting the production efficiency of the asphalt additive. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a pretreatment device for asphalt additives, which is convenient for preheating asphalt during filtration, thereby improving the pretreatment efficiency and production efficiency of the asphalt additives.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a pretreatment device for asphalt additives, comprising: a tank assembly with a preheating function and brackets connected around the bottom thereof, a top side of the tank assembly is connected to a feed bin, a bottom of the tank assembly is connected to a discharge pipe, an inclined filter plate is installed in the tank assembly, the discharge pipe is located above the higher end of the filter plate, a guide channel is provided at the lower end of the filter plate, a filter assembly is connected to the end of the guide channel away from the filter plate, the bottom of the filter assembly is inclined and one end thereof extends into the tank assembly, and the bottom end of the filter assembly is located below the filter plate;

[0006] It also includes an inclined stirring component and a driving device for driving it to rotate. The stirring component is inclined and its axis is perpendicular to the axial direction of the filter plate. A scraper component is installed on the outer circle of the stirring component. The scraper component is located above the filter plate and parallel to the filter plate.

[0007] By adopting the above technical solution, the asphalt enters the tank assembly from the feed hopper for preheating, and then is filtered through the filter plate to remove internal impurities. After reaching the bottom of the tank assembly, the stirring assembly is driven to rotate by the driving device so that it can fully absorb heat in the tank assembly to reduce its viscosity and undergo homogenization and emulsification reaction with the emulsifier. While the stirring assembly rotates, it drives the scraper assembly to rotate synchronously to clean the impurities on the surface of the filter plate so that the impurities flow into the filter assembly along the inclination angle of the filter plate.

[0008] In a preferred example, the utility model can be further configured as follows: the filter assembly includes a filter shell, a material receiving box is slidably connected to the filter shell, the material receiving box is located below one side of the guide channel, a plurality of filter holes are provided at the bottom of the material receiving box, slide grooves are respectively provided on both sides of the material receiving box, and also includes sliders installed on both sides of the inner wall of the filter shell, the slide grooves are slidably connected to the slide grooves, a handle is connected to the side of the material receiving box away from the tank assembly, and the bottom end of the filter shell is inclined.

[0009] By adopting the above technical solution, when filtering asphalt, some impurities flow along the inclination angle of the filter plate and flow into the filter housing through the diversion channel. Some of the asphalt carried therein will also flow into the filter housing, and under the action of the receiving box and the filter holes, the impurities are filtered into the receiving box, and the asphalt is diverted into the tank assembly, which prevents material waste while collecting impurities for recycling.

[0010] In a preferred example, the utility model can be further configured as follows: the stirring assembly includes a stirring rod 1 that passes through the filter plate, the stirring rod 1 is located at the center of the filter plate and the two are perpendicular to each other, the bottom end of the stirring rod 1 is connected to a universal joint, a support plate is connected to the tank assembly, the support plate is located below the filter plate and above the bottom of the filter assembly, a bearing seat is installed at the axis of the support plate, the bottom end of the universal joint is installed in the bearing seat, the bottom end of the universal joint is connected to stirring rod 2, the bottom of the stirring rod 2 is connected to a U-shaped stirring plate, the inner sides of the U-shaped stirring plate are respectively connected to flaps, and one end of the flaps is respectively connected to stirring rod 1.

[0011] By adopting the above technical solution, the driving device drives the stirring rod 1 to rotate, and cooperates with the universal joint to make the stirring rod 2 drive the U-shaped stirring plate to rotate, so as to fully turn over the asphalt at the bottom of the inner cavity of the tank assembly, and cooperate with the flip plate to increase the contact area between the stirring assembly and the asphalt, so as to fully absorb heat and reduce its viscosity.

[0012] In a preferred example, the utility model can be further configured as follows: the scraper assembly includes a mounting sleeve, the surface of the mounting sleeve is connected to at least one scraper body, the scraper body is inclined, and the bottom end of the scraper body is arranged close to the surface of the filter plate.

[0013] By adopting the above technical solution, the stirring component rotates and drives the mounting sleeve to rotate at the same time. At this time, the mounting sleeve drives the scraper body to rotate, so that the bottom of the scraper body rotates and cleans the impurities on the surface of the filter plate, so that the impurities flow into the filter component along the inclined angle of the filter plate. At the same time, it can also prevent the filter plate from being blocked, thereby improving its filtration efficiency.

[0014] In a preferred example, the utility model can be further configured as follows: the tank assembly includes an inner tank and an outer tank, a preheating cavity is formed between the inner tank and the outer tank, a spiral guide plate is connected to the preheating cavity, a liquid inlet is connected to the top of one side of the outer tank, a liquid outlet is connected to the bottom of the outer tank, and the liquid inlet and outlet extend into the preheating cavity respectively.

[0015] By adopting the above technical solution, external heat transfer oil or other heat transfer liquids enter the preheating cavity along the liquid inlet pipe to preheat the asphalt in the inner tank. In addition, the heat transfer oil flows in a spiral along the spiral guide plate to fully transfer the heat to the inner cavity of the inner tank to ensure that the internal asphalt fully absorbs the heat, and the flowed heat transfer oil is discharged along the liquid outlet pipe to achieve circulating flow.

[0016] In a preferred example, the utility model can be further configured as follows: the bottom cross-section of the tank assembly is arc-shaped.

[0017] By adopting the above technical solution, the preheated asphalt is discharged along the discharge pipe at the bottom of the tank body. Since the bottom has an arc, the phenomenon of liquid accumulation can be effectively prevented.

[0018] In summary, the utility model includes at least one of the following asphalt additive pretreatment device beneficial technical effects:

[0019] 1. The asphalt is preheated in the tank assembly and first filtered through the filter plate to remove its internal impurities. Then the driving device drives the stirring assembly to rotate so that it can fully absorb heat in the tank assembly to reduce its viscosity and fully improve the pretreatment efficiency of the asphalt additive. While the stirring assembly rotates, it drives the scraper assembly to rotate synchronously to clean the impurities on the surface of the filter plate so that the impurities flow into the filter assembly along the inclination angle of the filter plate, and prevent the filter plate from being blocked.

[0020] 2. When the filter plate filters asphalt, some impurities flow downward along its inclination angle and flow into the filter housing through the diversion channel. Some asphalt carried by the plate will also flow into the filter housing. Under the action of the receiving box and the filter holes, the impurities are filtered into the receiving box, and the asphalt is diverted into the tank assembly, which prevents material waste and collects impurities for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the filter assembly of the utility model.

[0024] In the figure: 10, tank assembly; 2, bracket; 3, feed bin; 4, discharge pipe; 5, filter plate; 6, guide channel; 70, filter assembly; 80, stirring assembly; 90, scraper assembly; a1, driving device;

[0025] 11. Inner tank; 12. Outer tank; 13. Spiral guide plate; 14. Preheating cavity; 15. Liquid inlet; 16. Liquid outlet;

[0026] 71. filter housing; 72. material receiving box; 73. filter hole; 74. slide groove; 75. slider; 76. handle;

[0027] 81. Stirring rod 1; 82. U-shaped stirring plate; 83. Flip plate; 84. Universal joint; 85. Support plate; 86. Bearing seat; 87. Stirring rod 2;

[0028] 91. Mounting sleeve; 92. Scraper body. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0031] Reference Figure 1-2, is a pretreatment device for asphalt additives disclosed in the utility model, comprising: a tank assembly 10 with a preheating function and a bracket 2 connected around the bottom thereof, the bottom cross-section of the tank assembly 10 is arc-shaped, a top side of the tank assembly 10 is connected to a feed bin 3, the bottom of the tank assembly is connected to a discharge pipe 4, an inclined filter plate 5 is installed in the tank assembly 10, the discharge pipe 4 is located above the higher end of the filter plate 5, a guide channel 6 is provided at the lower end of the filter plate 5, a filter assembly 70 is connected to the end of the guide channel 6 away from the filter plate 5, the bottom of the filter assembly 70 is inclined and one end thereof extends into the tank assembly 10, the bottom end of the filter assembly 70 is located below the filter plate 5, and also includes an inclined stirring assembly 80 and a driving device a1 for driving the same to rotate, the stirring assembly 80 is inclined and its axis is perpendicular to the axial direction of the filter plate 5, the stirring assembly 80 includes a stirring rod 81 penetrated on the filter plate 5, and a stirring rod 81 is provided on the filter plate 5. The stirring rod 81 is located at the center of the filter plate 5 and the two are perpendicular to each other. The bottom end of the stirring rod 81 is connected to the universal joint 84. A support plate 85 is connected to the tank assembly 10. The support plate 85 is located below the filter plate 5 and above the bottom of the filter assembly 70. A bearing seat 86 is installed at the axis of the support plate 85. The bottom end of the universal joint 84 is installed in the bearing seat 86. The bottom end of the universal joint 84 is connected to the stirring rod 87. The bottom of the stirring rod 87 is connected to a U-shaped stirring plate. 82, the inner side of the U-shaped stirring plate 82 is respectively connected with a flap 83, one end of the flap 83 is respectively connected with the stirring rod 81, a scraper assembly 90 is installed on the outer circle of the stirring assembly 80, the scraper assembly 90 is located above the filter plate 5 and parallel to the filter plate 5, the scraper assembly 90 includes a mounting sleeve 91, the surface of the mounting sleeve 91 is connected with at least one scraper body 92, the scraper body 92 is inclined, and the bottom end of the scraper body 92 is arranged close to the surface of the filter plate 5;The stirring rod 81 is arranged at the center of the filter plate 5 and is arranged perpendicular to it. The driving device a1 is a servo motor. The flap 83 is also arranged tilted to increase the stirring area. The discharge pipe 4 is controlled by the valve body and cooperates with the curvature of the bottom of the tank assembly 10 during discharge to prevent liquid accumulation. When the asphalt is preheated along the tank assembly 10 in the feed bin 3, the driving device a1 rotates at a low speed. At this time, the asphalt is filtered along the filter plate 5. Part of the impurities and asphalt flow with the scraper body 92 to the filter assembly 70 for re-filtration. At the same time, the scraper body 92 rotates synchronously with the stirring rod 81 to It can prevent the filter plate 5 from being blocked, improve its filtering efficiency, and allow the filtered asphalt to enter the bottom of the inner cavity of the tank assembly 10. As the stirring assembly 80 rotates, the stirring rod 1 81 drives the universal joint 84 to rotate, and the stirring rod 2 87 drives the U-shaped stirring plate 82 to rotate, fully stirring the asphalt at the bottom of the inner cavity of the tank assembly 10, and cooperates with the flap 83 to increase the contact area between the stirring assembly 80 and the asphalt, fully allowing the asphalt to absorb heat and reduce its viscosity, so as to ensure that after removing impurities and reducing viscosity, it is fully mixed with the emulsifier for homogenization and emulsification reaction, thereby improving the emulsification effect of the asphalt additive. ;

[0032] The filter assembly 70 includes a filter housing 71, in which a material receiving box 72 is slidably connected. The material receiving box 72 is located below one side of the guide channel 6. A plurality of filter holes 73 are provided at the bottom of the material receiving box 72. Slide grooves 74 are provided on both sides of the material receiving box 72. The filter assembly 70 also includes sliders 75 installed on both sides of the inner wall of the filter housing 71. The slide grooves 74 are slidably connected to the slide grooves 74. A handle 76 is connected to the side of the material receiving box 72 away from the tank assembly 10. The bottom end of the filter housing 71 is inclined. When the filter plate 5 filters asphalt, some impurities flow downward along its inclination angle and flow into the filter housing 71 through the guide channel 6. Some asphalt carried therein will also flow into the filter housing 71. Under the action of the material receiving box 72 and the filter holes 73, the impurities are filtered into the material receiving box 72. The filtered asphalt is guided into the tank assembly 10 along the inclined surface of the bottom end of the filter housing 71, which prevents material waste and collects and recycles impurities.

[0033] The tank assembly 10 includes an inner tank 11 and an outer tank 12, a preheating cavity 14 is formed between the inner tank 11 and the outer tank 12, a spiral guide plate 13 is connected to the preheating cavity 14, a liquid inlet pipe 15 is connected to the top of one side of the outer tank 12, and a liquid outlet pipe 16 is connected to the bottom of the outer tank 12, and the liquid inlet pipe 15 and the liquid outlet pipe 16 extend into the preheating cavity 14 respectively; the liquid inlet pipe 15 and the liquid outlet pipe 16 are connected through flanges and external circulation pumps and other equipment, and other heat-conducting liquids such as external heat-conducting oil are input into the preheating cavity 14 along the liquid inlet pipe 15, so as to preheat the asphalt in the inner tank 11, and at the same time, the heat-conducting oil flows in a spiral along the spiral guide plate 13, and fully conducts heat to the inner cavity of the inner tank 11 to ensure that the internal asphalt fully absorbs heat, and the heat-conducting oil after flowing is discharged along the liquid outlet pipe 16 to realize circulating flow.

[0034] The implementation principle of this embodiment is as follows: when in use, the asphalt enters the tank assembly 10 along the feed bin 3, and at the same time, the liquid inlet pipe 15 conducts the external heat transfer oil to the preheating cavity 14 to heat the inner tank 11. The heat transfer oil flows in a spiral along the spiral guide plate 13, fully conducts the heat to the inner cavity of the inner tank 11, and preheats the asphalt. At this time, the asphalt is filtered along the filter plate 5, and some impurities and asphalt flow along the inclination amplitude of the guide channel 6 and flow along it into the filter housing 71. At this time, the filter hole 73 filters the impurities again into the material receiving box 72, and the filtered asphalt is guided to the tank along the bottom inclined surface of the filter housing 71. In the component 10, at the same time, the driving device a1 drives the stirring rod 81 to rotate, and makes the stirring rod 81 drive the scraper body 92 to rotate, so as to prevent the filter plate 5 from being blocked and improve its filtering efficiency. The stirring rod 81 also drives the universal joint 84 to rotate, and makes the stirring rod 87 drive the U-shaped stirring plate 82 to rotate through the universal joint 84, and cooperates with the flap 83 to increase the contact area between the stirring component 80 and the asphalt, and fully flips the asphalt at the bottom of the inner cavity of the tank component 10 to make the asphalt absorb heat, so as to ensure that after removing impurities and reducing viscosity, it is fully mixed with the emulsifier for homogenization and emulsification reaction, thereby improving the emulsification effect of the asphalt additive.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pretreatment device for asphalt additives, characterized in that: include: A tank assembly (10) having a preheating function and a bracket (2) connected to the bottom thereof, wherein a feed bin (3) is connected to one side of the top of the tank assembly (10), a discharge pipe (4) is connected to the bottom of the tank assembly (10), a filter plate (5) arranged obliquely is installed in the tank assembly (10), the discharge pipe (4) is located above the higher end of the filter plate (5), a guide channel (6) is provided at the lower end of the filter plate (5), a filter assembly (70) is connected to the end of the guide channel (6) away from the filter plate (5), the bottom of the filter assembly (70) is arranged obliquely and one end thereof extends into the tank assembly (10), and the bottom end of the filter assembly (70) is located below the filter plate (5); It also includes an inclined stirring assembly (80) and a driving device (a1) for driving the stirring assembly to rotate. The stirring assembly (80) is inclined and its axis is perpendicular to the axial direction of the filter plate (5). A scraper assembly (90) is installed on the outer circle of the stirring assembly (80). The scraper assembly (90) is located above the filter plate (5) and parallel to the filter plate (5).

2. The asphalt additive pretreatment device according to claim 1, characterized in that: The filter assembly (70) comprises a filter housing (71), a material receiving box (72) being slidably connected inside the filter housing (71), the material receiving box (72) being located below one side of the flow guide channel (6), a plurality of filter holes (73) being provided at the bottom of the material receiving box (72), slide grooves (74) being provided at both sides of the material receiving box (72), and sliders (75) being installed at both sides of the inner wall of the filter housing (71), the slide grooves (74) being slidably connected to the slide grooves (74), a handle (76) being connected to the side of the material receiving box (72) away from the tank assembly (10), and the bottom end of the filter housing (71) being arranged tilted.

3. The asphalt additive pretreatment device according to claim 1, characterized in that: The stirring assembly (80) comprises a stirring rod (81) which is inserted into the filter plate (5). The stirring rod (81) is located at the center of the filter plate (5) and the two are perpendicular to each other. The bottom end of the stirring rod (81) is connected to a universal joint (84). A support plate (85) is connected inside the tank assembly (10). The support plate (85) is located below the filter plate (5) and above the bottom of the filter assembly (70). A bearing seat (86) is installed at the axis of the support plate (85). The bottom end of the universal joint (84) is installed in the bearing seat (86). The bottom end of the universal joint (84) is connected to a stirring rod (87). The bottom of the stirring rod (87) is connected to a U-shaped stirring plate (82). The inner side of the U-shaped stirring plate (82) is respectively connected to a flap (83). One end of the flap (83) is respectively connected to the stirring rod (81).

4. The asphalt additive pretreatment device according to claim 1, characterized in that: The scraper assembly (90) comprises a mounting sleeve (91), the surface of which is connected to at least one scraper body (92), the scraper body (92) being arranged at an angle, and the bottom end of the scraper body (92) being arranged close to the surface of the filter plate (5).

5. The asphalt additive pretreatment device according to claim 1, characterized in that: The tank assembly (10) comprises an inner tank (11) and an outer tank (12); a preheating cavity (14) is formed between the inner tank (11) and the outer tank (12); a spiral guide plate (13) is connected to the preheating cavity (14); a top end of one side of the outer tank (12) is connected to a liquid inlet (15); a bottom of the outer tank (12) is connected to a liquid outlet (16); the liquid inlet (15) and the liquid outlet (16) respectively extend into the preheating cavity (14).

6. The asphalt additive pretreatment device according to claim 1, characterized in that: The bottom cross-section of the tank assembly (10) is arc-shaped.

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