Asphalt melting device for highway engineering

Abstract

The utility model relates to the technical field of highway engineering, and provides an asphalt melting device for highway engineering, which comprises a bottom plate and a melting cylinder, the top end of the melting cylinder is provided with a top cover, the top cover is provided with a feed port, the feed port is rotatably connected with a sealing cover, the top end of the top cover is provided with a motor, and the output end of the motor penetrates through the top cover and is connected with a rotating shaft. A discharging pipe is arranged at the bottom end of the melting cylinder, a first valve is arranged on the discharging pipe, a connecting plate is fixedly connected to the bottom end of the melting cylinder, supporting rods are fixedly connected to the four corners of the bottom end of the connecting plate, the bottom ends of the four supporting rods are connected to the bottom plate, and a heat dissipation copper pipe is connected to the outer wall of the melting cylinder in a winding mode. The two ends of the heat dissipation copper pipe are connected to the oil heating box, so that oil residues and impurities are prevented from being adhered to the outer wall of the melting cylinder, and the purpose of keeping the asphalt melting effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering technology, specifically to an asphalt melting device for highway engineering. Background Technology

[0002] Asphalt is a brownish-black organic gel-like substance, including four types: natural asphalt, petroleum asphalt, shale asphalt, and coal tar pitch. Its main components are asphaltenes and resins, followed by high-boiling-point mineral oils and small amounts of oxygen, sulfur, and chlorine compounds. It has a glossy appearance and exists in liquid, semi-solid, or solid states. It is brittle at low temperatures and has good adhesion and anti-corrosion properties. Therefore, asphalt is mainly used in industries such as coatings, plastics, and rubber, as well as in road paving. The road asphalt commonly seen in highway engineering is mainly semi-solid petroleum asphalt or modified asphalt. In addition, asphalt needs to be melted before use in highway engineering in order to mix and bind with other materials.

[0003] According to the search, a Chinese patent publication number CN218932775U published on April 28, 2023, describes an asphalt melting device for highway engineering. It is roughly described as including a base, a hot oil cylinder, a support, and a melting cylinder. The hot oil cylinder is set on the top of the base. Three supports are evenly installed around the base from the bottom of the hot oil cylinder. The melting cylinder is installed inside the hot oil cylinder. A stirring component is set inside the melting cylinder. A hopper is installed between the bottom of the melting cylinder and the bottom of the hot oil cylinder.

[0004] While the aforementioned existing technical solution facilitates uniform heating of asphalt, the device injects hot oil between the hot oil cylinder and the melting cylinder, which can easily leave oil residue on the outer wall of the melting cylinder, leading to the adhesion of a large amount of impurities that are difficult to clean, thus affecting the heat transfer efficiency and reducing the asphalt melting effect. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an asphalt melting device for highway engineering, which solves the problem mentioned in the background technology that oil residue easily remains on the outer wall of the melting cylinder, leading to the adhesion of a large number of impurities that are difficult to clean, thus affecting the heat transfer efficiency and reducing the asphalt melting effect.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an asphalt melting device for highway engineering, comprising a base plate, a melting cylinder, a top cover at the top of the melting cylinder, a feed inlet on the top cover, a sealing cover rotatably connected to the feed inlet, a motor installed at the top of the top cover, the output end of the motor passing through the top cover and connected to a rotating shaft, a plurality of evenly distributed stirring rods on the rotating shaft, a discharge pipe at the bottom of the melting cylinder, a first valve on the discharge pipe, a connecting plate fixedly connected to the bottom of the melting cylinder, support rods fixedly connected to the four corners of the bottom of the connecting plate, the bottom ends of the four support rods connected to the base plate, and a heat dissipation copper pipe wound around the outer wall of the melting cylinder, both ends of the heat dissipation copper pipe being connected to an oil heating box.

[0009] By adopting the above technical solution, the material is added to the melting cylinder through the feed inlet. The heated oil is poured into the heat dissipation copper pipe from one end, thereby heating the melting cylinder and the asphalt material inside. The motor is started to drive the rotating shaft and stirring rod to rotate, thereby improving the heating uniformity. The hot oil flows back to the oil heating tank from the other end of the heat dissipation copper pipe, so that the oil heating tank continuously heats the oil, thereby maintaining the temperature of the oil and maintaining the asphalt melting effect. The heat dissipation copper pipe is used to prevent oil residue and impurities from adhering to the outer wall of the melting cylinder, thereby maintaining the asphalt melting effect.

[0010] Optionally, a heat insulation box is fixedly connected to the outer wall of the melting cylinder, the heat dissipation copper pipe is located inside the heat insulation box, and the oil heating box is fixedly connected to the outer wall of the heat insulation box.

[0011] By adopting the above technical solution, the heat insulation box is used to prevent the copper heat dissipation pipes from causing burns to personnel and to reduce heat loss, thereby achieving the purpose of improving the melting efficiency of asphalt.

[0012] Optionally, the bottom of the oil heating box is provided with an oil drain pipe, and a second valve is provided on the oil drain pipe. The top of the oil heating box is provided with an air hole, and a sealing plug is provided on the air hole.

[0013] By adopting the above technical solution, the oil drain pipe is used to conveniently drain oil that has been used for a long time, thereby facilitating oil replacement.

[0014] Optionally, the top cover is provided with an air outlet, and a gas purification box is installed at the top of the bottom plate. A suction fan is installed on the gas purification box, and a ventilation pipe is provided on the suction fan. One end of the ventilation pipe is connected to the air outlet.

[0015] By adopting the above technical solution, the suction fan is started to drive the waste gas inside the melting cylinder into the gas purification box, thereby purifying the waste gas before it is discharged, thus avoiding pollution to the surrounding air.

[0016] Optionally, the base plate is provided with casters with self-locking function at each of the four corners of the bottom end.

[0017] By adopting the above technical solution, casters are used to facilitate the movement of equipment, thereby improving the flexibility of the equipment.

[0018] (III) Beneficial Effects

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] The asphalt melting device used in this highway project involves feeding material into the melting cylinder through the inlet. Heated oil is poured into the cooling copper pipe from one end, thus heating the melting cylinder and the asphalt material inside. A motor is started to drive the rotating shaft and stirring rod to improve the uniformity of heating. The hot oil flows back to the oil heating tank from the other end of the cooling copper pipe, allowing the oil heating tank to continuously heat the oil and maintain its temperature, thereby maintaining the asphalt melting effect. The cooling copper pipe is used to prevent oil residue and impurities from adhering to the outer wall of the melting cylinder, thus maintaining the asphalt melting effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first side view of the present invention;

[0022] Figure 2 This is a schematic diagram of the second side view of the present invention;

[0023] Figure 3 This is a first cross-sectional view of the present invention.

[0024] Figure 4 This is a second cross-sectional view of the present invention.

[0025] In the diagram: 1. Base plate; 2. Melting cylinder; 3. Top cover; 4. Sealing cover; 5. Motor; 6. Rotating shaft; 7. Stirring rod; 8. Discharge pipe; 9. First valve; 10. Connecting plate; 11. Support rod; 12. Heat dissipation copper pipe; 13. Oil heating box; 14. Insulation box; 15. Oil drain pipe; 16. Second valve; 17. Sealing plug; 18. Gas purification box; 19. Fan; 20. Vent pipe; 21. Casters. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-4 A road asphalt melting device includes a base plate 1, a melting cylinder 2, a top cover 3 at the top of the melting cylinder 2, a feed inlet on the top cover 3, a sealing cover 4 rotatably connected to the feed inlet, a motor 5 mounted on the top of the top cover 3, the output end of the motor 5 passing through the top cover 3 and connected to a rotating shaft 6, a plurality of evenly distributed stirring rods 7 on the rotating shaft 6, a discharge pipe 8 at the bottom of the melting cylinder 2, a first valve 9 on the discharge pipe 8, a connecting plate 10 fixedly connected to the bottom of the melting cylinder 2, support rods 11 fixedly connected to the four corners of the bottom of the connecting plate 10, the bottom ends of the four support rods 11 connected to the base plate 1, and heat dissipation copper pipes 12 wound around the outer wall of the melting cylinder 2, both ends of the heat dissipation copper pipes 12 are... Connected to the oil heating tank 13, the material is added to the melting cylinder 2 through the feed inlet. The heated oil is poured into the heat dissipation copper pipe 12 from one end, so that the hot oil heats the melting cylinder 2 and the asphalt material inside the melting cylinder 2. The motor 5 is started to drive the rotating shaft 6 and the stirring rod 7 to rotate, so as to improve the heating uniformity. The hot oil flows back to the oil heating tank 13 from the other end of the heat dissipation copper pipe 12, so that the oil heating tank 13 continuously heats the oil, so as to maintain the temperature of the oil and maintain the melting effect of the asphalt. The heat dissipation copper pipe 12 is used to prevent oil residue and impurities from adhering to the outer wall of the melting cylinder 2, so as to maintain the melting effect of the asphalt.

[0029] Reference Figure 1 and Figure 2 A heat insulation box 14 is fixedly connected to the outer wall of the melting cylinder 2. The heat dissipation copper pipe 12 is located inside the heat insulation box 14. The oil heating box 13 is fixedly connected to the outer wall of the heat insulation box 14. The heat insulation box 14 is used to prevent the heat dissipation copper pipe 12 from causing burns to personnel and to reduce heat loss, thereby achieving the purpose of improving the asphalt melting efficiency.

[0030] Reference Figure 2 The bottom of the oil heating box 13 is provided with an oil drain pipe 15, and a second valve 16 is provided on the oil drain pipe 15. The top of the oil heating box 13 is provided with an air hole, and a sealing plug 17 is provided on the air hole. The oil drain pipe 15 is used to facilitate the discharge of oil that has been used for a long time, so as to facilitate the replacement of oil.

[0031] Reference Figure 1 The top cover 3 has an air outlet, and the top of the bottom plate 1 has a gas purification box 18. The gas purification box 18 is equipped with a suction fan 19, and the suction fan 19 has a ventilation pipe 20. One end of the ventilation pipe 20 is connected to the air outlet. When the suction fan 19 is started, the waste gas inside the melting cylinder 2 is driven into the gas purification box 18 to purify the waste gas and then discharge it to avoid polluting the surrounding air.

[0032] Reference Figure 2 The base plate 1 is equipped with four casters 21 with self-locking function at the four corners of the bottom. The casters 21 are used to facilitate the movement of the equipment, thereby improving the flexibility of the equipment.

[0033] In summary, the working principle and process of this asphalt melting device for highway engineering are as follows: First, the material is added to the melting cylinder 2 through the feed inlet. Heated oil is then poured into the heat dissipation copper pipe 12 from one end, thus heating the melting cylinder 2 and the asphalt material inside. The motor 5 is started, driving the rotating shaft 6 and stirring rod 7 to rotate, thereby improving the uniformity of heating. The hot oil flows back to the oil heating tank 13 from the other end of the heat dissipation copper pipe 12, allowing the oil heating tank 13 to continuously heat the oil, maintaining its temperature and thus ensuring effective asphalt melting. The heat dissipation copper pipe 12 is used to prevent residual oil and adhering impurities on the outer wall of the melting cylinder 2, thereby maintaining the asphalt melting effect. The heat insulation box 14 is used to prevent the heat dissipation copper pipe 12 from causing burns to personnel and to reduce heat loss, thereby improving the asphalt melting efficiency. The oil drain pipe 15 is used to facilitate the discharge of oil that has been used for a long time, thereby facilitating oil replacement. The suction fan 19 is started to drive the exhaust gas inside the melting cylinder 2 into the gas purification box 18, thereby purifying the exhaust gas and then discharging it to avoid polluting the surrounding air. The casters 21 are used to facilitate the movement of the equipment, thereby improving the flexibility of the equipment.

[0034] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An asphalt melting device for highway engineering, comprising a base plate (1), characterized in that: The device includes a melting cylinder (2), a top cover (3) at the top of the melting cylinder (2), a feed inlet on the top cover (3), a sealing cover (4) rotatably connected to the feed inlet, a motor (5) installed at the top of the top cover (3), the output end of the motor (5) passing through the top cover (3) and connected to a rotating shaft (6), a plurality of evenly distributed stirring rods (7) on the rotating shaft (6), a discharge pipe (8) at the bottom of the melting cylinder (2), a first valve (9) on the discharge pipe (8), a connecting plate (10) fixedly connected to the bottom of the melting cylinder (2), support rods (11) fixedly connected to the four corners of the bottom of the connecting plate (10), the bottom ends of the four support rods (11) connected to the bottom plate (1), and a heat dissipation copper pipe (12) wound around the outer wall of the melting cylinder (2), both ends of the heat dissipation copper pipe (12) being connected to the oil heating box (13).

2. The asphalt melting device for highway engineering according to claim 1, characterized in that: A heat insulation box (14) is fixedly connected to the outer wall of the melting cylinder (2), the heat dissipation copper pipe (12) is located inside the heat insulation box (14), and the oil heating box (13) is fixedly connected to the outer wall of the heat insulation box (14).

3. The asphalt melting device for highway engineering according to claim 1, characterized in that: The bottom of the oil heating box (13) is provided with an oil drain pipe (15), and a second valve (16) is provided on the oil drain pipe (15). The top of the oil heating box (13) is provided with an air hole, and a sealing plug (17) is provided on the air hole.

4. The asphalt melting device for highway engineering according to claim 1, characterized in that: The top cover (3) has an air outlet, and a gas purification box (18) is installed on the top of the bottom plate (1). A suction fan (19) is installed on the gas purification box (18), and a ventilation pipe (20) is provided on the suction fan (19). One end of the ventilation pipe (20) is connected to the air outlet.

5. The asphalt melting device for highway engineering according to claim 1, characterized in that: The bottom plate (1) is equipped with four casters (21) with self-locking function at the four corners of the bottom.

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