Rapid heating device for waste asphalt mixture

Abstract

The utility model discloses a rapid waste asphalt mixture heating device which comprises two racks, an operation table is fixedly arranged at the upper ends of the racks, a mixing tank is fixedly arranged at the upper end of the operation table, a tank cover is arranged at the upper end of the mixing tank, and the tank cover is in threaded connection with the mixing tank; the rotating seat is arranged at the upper part of the interior of the mixing tank, a rotating rod is fixedly arranged at the middle position of the lower end of the rotating seat, a spiral blade is arranged outside the rotating rod and is fixedly connected with the rotating rod, and heating rods are fixedly arranged on two sides of the lower end of the rotating seat; the motor is arranged at the upper end of the tank cover, an output shaft of the motor extends into the mixing tank and is fixedly connected with the rotating seat, and the problems that the heating effect of the waste asphalt mixture is not good enough and the waste asphalt mixture is prone to remaining on the side wall of the heating tank are solved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of waste asphalt mixture, in particular to a rapid heating device for waste asphalt mixture. Background Technique

[0002] Waste asphalt refers to asphalt materials that have been used, damaged or discarded. It is usually generated from the demolition, repair or reconstruction of infrastructure such as roads, parking lots, and runways. Waste asphalt contains various degrees of asphalt, gravel, soil and other impurities. The asphalt component in waste asphalt can be processed and recycled for the production of recycled asphalt mixture. When recycling waste asphalt, it is necessary to use a rapid heating device to heat and melt the asphalt before subsequent operations, so as to achieve the reuse and recycling of resources.

[0003] For example, the Chinese patent "A Rapid Heating Device for an Asphalt Mixture Storage Tank" with the publication number CN206815134U includes a storage tank. The storage tank includes a storage bin, a preheating bin, and a heating bin. A first feeding port is provided above the storage bin. A convex circle is fixedly installed below the storage bin. Feeding pipes are installed at the left and right ends below the storage bin. Electric valves are provided at the lower ends of the feeding pipes. The preheating bin is provided below the storage bin. A rotating motor is installed on the top of the preheating bin. A connecting rod is connected directly below the rotating motor. A conical preheating plate is provided below the preheating bin. A second feeding port is provided at the center of the conical preheating plate. An annular heating pipe is connected below the second feeding port. The heating bin is provided below the preheating bin. A heat preservation layer is laid in the heating bin. An electromagnetic heating machine is installed below the heating bin. A discharge port is provided at the lower right of the heating bin. A switch is provided on the surface of the heating bin. A filter screen is provided on the first feeding port.

[0004] Although the above-mentioned prior art can realize the heating of waste asphalt mixture, in actual use, on the one hand, the heating effect of waste asphalt mixture is not good enough. When heating waste asphalt mixture, the mixing tank is directly heated by heating wires, resulting in a slower heating rate of the waste asphalt mixture in the center of the mixing tank, thus reducing the heating rate of the waste asphalt mixture. On the other hand, the waste asphalt mixture is easily left on the side wall of the heating tank. When heating asphalt, the viscous waste asphalt mixture will stick to the side wall of the heating tank, resulting in uneven mixing of the waste asphalt mixture during the mixing process, thus affecting the mixing uniformity and quality. Therefore, it does not meet the existing requirements. For this reason, we propose a rapid heating device for waste asphalt mixture. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a rapid heating device for waste asphalt mixture, so as to solve the problems of insufficient heating effect of waste asphalt mixture and easy residue of waste asphalt mixture on the side wall of the heating tank in the above-mentioned background technology.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A rapid heating device for waste asphalt mixture, including a frame, and there are two frames. The upper end of the frame is fixedly provided with an operating table, and the upper end of the operating table is fixedly provided with a mixing tank. The upper end of the mixing tank is provided with a tank cover, and the tank cover is threadedly connected to the mixing tank; further includes:

[0007] A rotating seat, which is arranged above the inside of the mixing tank. A rotating rod is fixedly provided at the middle position of the lower end of the rotating seat. A spiral blade is arranged outside the rotating rod, and the spiral blade is fixedly connected to the rotating rod. Heating rods are fixedly provided on both sides of the lower end of the rotating seat;

[0008] A motor, which is arranged on the upper end of the tank cover, and the output shaft of the motor extends into the inside of the mixing tank and is fixedly connected to the rotating seat.

[0009] Preferably, both sides inside the mixing tank are provided with chutes, and the upper ends of the chutes are of an open structure. A cleaning ring is arranged below the inside of the mixing tank. Fixed seats are fixedly provided on both sides outside the cleaning ring, and the fixed seats extend into the chutes, and the fixed seats are slidably limited by the chutes.

[0010] Preferably, hydraulic telescopic devices are fixedly provided on both sides of the upper end of the tank cover, and the telescopic ends of the hydraulic telescopic devices extend into the chutes and are fixedly connected to the fixed seats.

[0011] Preferably, a second heating wire is arranged inside the heating rod, and the second heating wire is fixedly connected to the heating rod.

[0012] Preferably, a first heating wire is arranged inside the side wall of the mixing tank, and the first heating wire is distributed in a spiral shape.

[0013] Preferably, a discharge pipe is arranged at the bottom end of the mixing tank. The discharge pipe is communicated with the mixing tank, and the lower end of the discharge pipe extends below the operating table.

[0014] Preferably, a valve is fixedly provided outside the discharge pipe below the operating table.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. The utility model can stir waste asphalt mixture through a spiral blade and a heating rod. When mixing waste asphalt mixture, start the motor and energize the first heating wire, so that the output shaft of the motor drives the rotating seat to rotate. At this time, the spiral blade and the heating rod at the lower end of the rotating seat both rotate. While the spiral blade and the heating rod are rotating, stir the waste asphalt mixture, so that the waste asphalt mixture at the center position of the mixing tank moves towards the side wall of the mixing tank. At the same time, the first heating wire heats up the mixing tank, and the waste asphalt mixture absorbs the heat on the side wall of the mixing tank, so that the temperature of the waste asphalt mixture rises rapidly, avoiding the slow heating of the waste asphalt mixture at the center position of the mixing tank, thereby accelerating the heating rate of the waste asphalt mixture.

[0017] 2. The utility model can clean the waste asphalt mixture attached to the side wall of the mixing tank through a hydraulic telescopic device and a cleaning ring. After the waste asphalt mixture is mixed and heated up, open the valve at this time, so that the waste asphalt mixture is discharged from the inside of the mixing tank through the discharge pipe, and then start the hydraulic telescopic device, so that the telescopic end of the hydraulic telescopic device contracts. While the telescopic end of the hydraulic telescopic device contracts, drive the cleaning ring to move upward. At this time, scrape the waste asphalt mixture attached to the side wall of the mixing tank through the cleaning ring. When the cleaning ring moves to a suitable position, then extend the telescopic end of the hydraulic telescopic device, and drive the cleaning ring to move downward through the extension of the telescopic end of the hydraulic telescopic device until the cleaning ring moves back to the original position. Move the cleaning ring up and down repeatedly to avoid the unevenness of the waste asphalt mixture during the mixing process, thereby affecting the mixing uniformity and quality.

[0018] 3. The utility model is provided with a second heating wire to heat the heating rod. When mixing and stirring the waste asphalt mixture, energize the second heating wire. When the current passes through the second heating wire, resistance will be generated, and the resistance will make the second heating wire heat up, converting electrical energy into heat energy, thereby heating up the heating rod. At the same time, the heating rod is constantly stirring the waste asphalt mixture, so that the waste asphalt mixture heats up, and thus the waste asphalt mixture heats up rapidly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the internal structure of the present utility model;

[0020] Figure 2 is the side view of the internal structure of the present utility model;

[0021] Figure 3 is the top view of the internal structure of the present utility model;

[0022] Figure 4 is of the present utility model Figure 3 partial enlarged view of area A in.

[0023] In the figure: 1, frame; 2, operating platform; 3, mixing tank; 4, tank cover; 5, first heating wire; 6, hydraulic telescopic device; 7, motor; 8, rotating seat; 9, rotating rod; 10, spiral blade; 11, heating rod; 12, second heating wire; 13, cleaning ring; 14, fixed seat; 15, chute; 16, discharge pipe; 17, valve. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1-4 , an embodiment provided by the present invention: a rapid heating device for waste asphalt mixture, including a frame 1, and there are two frames 1. An operating platform 2 is fixedly arranged at the upper end of the frame 1, a mixing tank 3 is fixedly arranged at the upper end of the operating platform 2, a tank cover 4 is arranged at the upper end of the mixing tank 3, and the tank cover 4 is threadedly connected to the mixing tank 3; further including:

[0026] A rotating seat 8, which is arranged above the inside of the mixing tank 3. A rotating rod 9 is fixedly arranged at the middle position of the lower end of the rotating seat 8. A spiral blade 10 is arranged outside the rotating rod 9, and the spiral blade 10 is fixedly connected to the rotating rod 9. Heating rods 11 are fixedly arranged on both sides of the lower end of the rotating seat 8;

[0027] A motor 7, which is arranged at the upper end of the tank cover 4, and the output shaft of the motor 7 extends into the inside of the mixing tank 3 and is fixedly connected to the rotating seat 8.

[0028] During use, when mixing waste asphalt mixture, turn on the motor 7 and energize the first heating wire 5, so that the output shaft of the motor 7 drives the rotating seat 8 to rotate. At this time, the spiral blade 10 and the heating rod 11 located at the lower end of the rotating seat 8 both rotate. While the spiral blade 10 and the heating rod 11 are rotating, the waste asphalt mixture is stirred, so that the waste asphalt mixture located at the center position of the mixing tank 3 moves towards the side wall of the mixing tank 3. At the same time, the first heating wire 5 heats up the mixing tank 3, and the waste asphalt mixture absorbs the heat on the side wall of the mixing tank 3, so that the temperature of the waste asphalt mixture rises rapidly.

[0029] Please refer to Figure 1 and Figure 2, sliding grooves 15 are provided on both sides inside the mixing tank 3, and the upper ends of the sliding grooves 15 are of open structures. A cleaning ring 13 is provided below the inside of the mixing tank 3. Fixed seats 14 are fixedly provided on both sides outside the cleaning ring 13, and the fixed seats 14 extend into the sliding grooves 15, and the fixed seats 14 are slidably limited by the sliding grooves 15, which is convenient for cleaning the waste asphalt mixture adhering to the side wall of the mixing tank 3 through the cleaning ring 13.

[0030] Please refer to Figure 1 , Figure 3 and Figure 4 , hydraulic telescopic devices 6 are fixedly provided on both sides of the upper end of the tank cover 4, and the telescopic ends of the hydraulic telescopic devices 6 extend into the sliding grooves 15 and are fixedly connected to the fixed seats 14, which is convenient for driving the cleaning ring 13 to move in the vertical direction through the hydraulic telescopic devices 6.

[0031] Please refer to Figure 1 and Figure 2 , a second heating wire 12 is provided inside the heating rod 11, and the second heating wire 12 is fixedly connected to the heating rod 11, which is convenient for heating the heating rod 11 through the second heating wire 12.

[0032] Please refer to Figure 1 and Figure 3 , a first heating wire 5 is provided inside the side wall of the mixing tank 3, and the first heating wire 5 is distributed in a spiral shape, which is convenient for heating the mixing tank 3 through the first heating wire 5.

[0033] Please refer to Figure 1 and Figure 2 , a discharge pipe 16 is provided at the bottom end of the mixing tank 3. The discharge pipe 16 is communicated with the mixing tank 3, and the lower end of the discharge pipe 16 extends below the operating platform 2, which is convenient for discharging the heated waste asphalt mixture from the inside of the mixing tank 3 through the discharge pipe 16.

[0034] Please refer to Figure 1 and Figure 2 , a valve 17 is fixedly provided outside the discharge pipe 16 below the operating platform 2, which is convenient for controlling the opening and closing of the discharge pipe 16 through the valve 17.

[0035] Working principle: After the waste asphalt mixture is heated and mixed to completion, valve 17 is opened at this time, so that the waste asphalt mixture is discharged from the inside of mixing tank 3 through discharge pipe 16. Then, hydraulic telescopic device 6 is activated, causing the telescopic end of hydraulic telescopic device 6 to contract. While the telescopic end of hydraulic telescopic device 6 is contracting, it drives cleaning ring 13 to move upward. At this time, the waste asphalt mixture attached to the side wall of mixing tank 3 is scraped off by cleaning ring 13. When cleaning ring 13 moves to a suitable position, the telescopic end of hydraulic telescopic device 6 is extended. By extending the telescopic end of hydraulic telescopic device 6, cleaning ring 13 is driven to move downward until cleaning ring 13 moves back to its original position. Cleaning ring 13 is repeatedly moved up and down many times. When mixing and stirring the waste asphalt mixture, second heating wire 12 is energized. When current passes through second heating wire 12, resistance will be generated. The resistance will cause second heating wire 12 to heat up, converting electrical energy into heat energy, thereby heating up heating rod 11. At the same time, heating rod 11 is also constantly stirring the waste asphalt mixture to heat up the waste asphalt mixture.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A waste asphalt mixture rapid heating device, comprising a frame (1), wherein two frames (1) are provided, an operating table (2) is fixedly provided at the upper end of the frame (1), a mixing tank (3) is fixedly provided at the upper end of the operating table (2), a tank cover (4) is provided at the upper end of the mixing tank (3), and the tank cover (4) is connected to the mixing tank (3) by threads; Features: Also includes: A rotating seat (8) is arranged above the interior of the mixing tank (3); a rotating rod (9) is fixedly arranged at the middle position of the lower end of the rotating seat (8); a spiral blade (10) is arranged outside the rotating rod (9), and the spiral blade (10) is fixedly connected to the rotating rod (9); heating rods (11) are fixedly arranged on both sides of the lower end of the rotating seat (8); The motor (7) is arranged at the upper end of the tank cover (4), and the output shaft of the motor (7) extends into the interior of the mixing tank (3) and is fixedly connected to the rotating seat (8).

2. The device for rapidly heating waste asphalt mixture according to claim 1 is characterized in that: Both sides of the mixing tank (3) are provided with slide grooves (15), and the upper end of the slide groove (15) is an open structure. A cleaning circle (13) is provided below the mixing tank (3). Both sides of the outside of the cleaning circle (13) are fixedly provided with fixed seats (14), and the fixed seats (14) extend into the inside of the slide groove (15), and the fixed seats (14) and the slide groove (15) are slidably limited.

3. The device for rapidly heating waste asphalt mixture according to claim 2 is characterized in that: Hydraulic telescopic devices (6) are fixedly provided on both sides of the upper end of the tank cover (4), and the telescopic ends of the hydraulic telescopic devices (6) extend into the interior of the slide groove (15) and are fixedly connected to the fixing seat (14).

4. The device for rapidly heating waste asphalt mixture according to claim 1 is characterized in that: A second heating wire (12) is arranged inside the heating rod (11), and the second heating wire (12) is fixedly connected to the heating rod (11).

5. The device for rapidly heating waste asphalt mixture according to claim 1 is characterized in that: A first heating wire (5) is arranged inside the side wall of the mixing tank (3), and the first heating wire (5) is distributed in a spiral shape.

6. The device for rapidly heating waste asphalt mixture according to claim 1, characterized in that: A discharge pipe (16) is provided at the bottom end of the mixing tank (3), the discharge pipe (16) is in communication with the mixing tank (3), and the lower end of the discharge pipe (16) extends to below the operating table (2).

7. The device for rapidly heating waste asphalt mixture according to claim 6 is characterized by: The discharge pipe (16) is located below the operating table (2) and is fixedly provided with a valve (17) on the outside.

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