An asphalt mixture heating and holding device

Abstract

The utility model relates to bitumen heat -preserving device technical field, and specifically is a bituminous mixture heating heat -preserving device, including base, the base is supported and fixed with outer tube through support, the end of inner tube is fixedly connected with the trachea in the outer tube, the end of trachea is connected with the air pump outside the outer tube, the piston is slidably arranged in the inner tube, in the utility model, through the air pump gas injection and air extraction to the inner tube, the asphalt material is inhaled and discharged when the piston is sliding, and then the in -and -out material speed is promoted, makes multiple heating rods heat under the resistance heating principle, under the slow rotation of inner tube makes its asphalt material to obtain the uniform heating, and under the action of no. The bitumen in the device is heat -preserved under the action of no. The sealing cover is taken off from the maintenance port, and the maintenance port can be opened, so that the inner cylinder is cleaned, and the residual bitumen on the sealing cover is cleaned, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt insulation devices, specifically an asphalt mixture heating and insulation device. Background Technology

[0002] In the field of road construction, asphalt mixture is a key material whose performance plays a decisive role in road quality. Asphalt mixture heating and insulation devices are widely used in the construction of various highways, urban roads and bridges. Whether it is large-scale highway construction or daily maintenance and repair of urban roads, these devices are indispensable, ensuring the temperature stability of asphalt mixture during storage, transportation and use, and providing the necessary conditions for the smooth progress of road construction.

[0003] A Chinese patent with publication number CN221681539U discloses an asphalt mixture heating and insulation device. This device consists of an outer cylinder and an inner cylinder, with a heating rod inside a heat-conducting rod. The heat-conducting rod evenly heats the inner cylinder, thus heating the asphalt mixture inside. With the assistance of a mixing component, the asphalt mixture is stirred to ensure uniform heating, thereby improving the heating and insulation of the asphalt mixture during transportation. A baffle component facilitates the discharge of the asphalt mixture from the inner cylinder for use.

[0004] In the aforementioned literature, due to the viscous nature and poor fluidity of asphalt, existing asphalt mixture heating and insulation devices tend to cause asphalt mixture to accumulate and stick at the discharge hopper, resulting in blockages, slow feeding and discharging speeds, severely impacting work efficiency, and failing to effectively discharge the asphalt from the inner cylinder, easily leaving residues. These residues not only increase processing costs but are also difficult to clean after hardening, making them inconvenient to use. Therefore, an asphalt mixture heating and insulation device is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the poor fluidity of asphalt causing clogging of the discharge hopper, slow material feeding and discharging speeds, reduced work efficiency, and difficulty in cleaning residual asphalt within the device, resulting in inconvenience, this invention proposes an asphalt mixture heating and insulation device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The asphalt mixture heating and heat preservation device of this utility model includes a base, an outer cylinder is supported and fixed on the base by a bracket, an inner cylinder is rotatably disposed through one end of the outer cylinder, an air pipe is fixedly connected to the end of the inner cylinder located inside the outer cylinder, and the end of the air pipe is rotatably disposed through and outside the outer cylinder, an air pump is connected to the end of the air pipe located outside the outer cylinder, and a piston is slidably disposed inside the inner cylinder;

[0007] The inner cylinder has an inspection port at the end located outside the outer cylinder. A sealing cap is threaded to the outside of the inspection port. Multiple heating rods are fixed through the end of the outer cylinder opposite to the inspection port, and the multiple heating rods are evenly distributed on the outer curved surface of the inner cylinder.

[0008] The space between the inner wall of the outer cylinder and the outer wall of the inner cylinder is filled with No. 1 thermal insulation filler, and the cavity inside the sealing cover is filled with No. 2 thermal insulation filler.

[0009] Preferably, the inner wall of the outer cylinder is fixed with evenly distributed support rods, the ends of the support rods are all fixed with a first fixing ring, the connection between the end face of the outer cylinder and the inner cylinder is fixed with a second fixing ring, and positioning rings are rotatably installed in both the first and second fixing rings, and both positioning rings are fixed to the outer wall of the inner cylinder.

[0010] Preferably, a toothed ring is fixedly connected to the air pipe, and a gear is provided on the toothed ring for meshing and transmission connection with it. A motor is fixed on the outer wall of the outer cylinder, and the gear is fixed at the output end of the motor.

[0011] Preferably, a heating control module is fixed on the end face of the outer cylinder opposite to the inspection port, and the heating control module is connected to and controls multiple heating rods, and a wear-resistant sealing ring that slides and seals with the inner wall of the inner cylinder is fixed on the side curved surface of the piston.

[0012] Preferably, the working end of the air pump is fixed with a connecting pipe, and the end of the connecting pipe is fixedly connected with a connector, which is rotatably installed at the end of the air pipe.

[0013] Preferably, a sealing ring is fixed inside the sealing cover, a material tube is fixed through the side of the sealing cover, a sealing plug is threaded inside the material tube, and the sealing plug is fastened to the end of the material tube by bolts.

[0014] Preferably, a connecting ring is fixedly connected to the sealing cover, and a third fixing ring is fixedly connected to the outside of the inspection port, and the connecting ring and the third fixing ring are fastened together by bolts.

[0015] The advantages of this utility model are:

[0016] 1. This utility model uses an air pump to inject and extract air into the inner cylinder, thereby driving the piston to slide inside under pressure. During the sliding process, asphalt material is sucked in and discharged, thus increasing the feeding and discharging speed and improving work efficiency. Multiple heating rods generate heat under the principle of resistance heating, and the asphalt material inside is uniformly heated under the slow rotation of the inner cylinder. The asphalt inside the device is kept warm by the action of No. 1 and No. 2 insulation packing materials to ensure that it is in a flowing state.

[0017] 2. This utility model allows the maintenance port to be opened by removing the bolts between the connecting ring and the third fixing ring and rotating the sealing cover off the maintenance port. This facilitates cleaning of the inside of the inner cylinder and cleaning of residual asphalt on the sealing cover, thus improving ease of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment;

[0020] Figure 2 This is a cross-sectional enlarged schematic diagram of the outer cylinder main body installation structure in this embodiment;

[0021] Figure 3 This is an enlarged schematic diagram of the inner cylinder main body installation structure in this embodiment;

[0022] Figure 4 This is an enlarged schematic diagram of the piston body mounting structure in this embodiment;

[0023] Figure 5 This is an enlarged schematic diagram of area A in the cross-sectional view of the outer cylinder main body installation structure in this embodiment.

[0024] In the diagram: 1. Base; 2. Bracket; 3. Outer cylinder; 4. Support rod; 5. First fixing ring; 6. Second fixing ring; 7. Inner cylinder; 8. Positioning ring; 9. Air pipe; 10. Connector; 11. Connecting pipe; 12. Gear ring; 13. Gear; 14. Motor; 15. Air pump; 16. Heating rod; 17. Heating control module; 18. First insulation packing; 19. Inspection port; 20. Sealing cover; 21. Material pipe; 22. Sealing plug; 23. Third fixing ring; 24. Connecting ring; 25. Piston; 26. Wear-resistant sealing ring; 27. Second insulation packing; 28. Sealing ring. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] Please see Figure 1-5 As shown, an asphalt mixture heating and insulation device includes a base 1, on which an outer cylinder 3 is supported and fixed by a bracket 2. An inner cylinder 7 is rotatably disposed through one end of the outer cylinder 3. An air pipe 9 is fixedly connected to the end of the inner cylinder 7 located inside the outer cylinder 3, and the end of the air pipe 9 is rotatably disposed outside the outer cylinder 3. An air pump 15 is connected to the end of the air pipe 9 located outside the outer cylinder 3. A piston 25 is slidably disposed inside the inner cylinder 7.

[0027] The inner cylinder 7 is provided with an inspection port 19 at the end located outside the outer cylinder 3. A sealing cap 20 is threadedly connected to the outside of the inspection port 19. Multiple heating rods 16 are fixed through the end of the outer cylinder 3 on the opposite side of the inspection port 19, and the multiple heating rods 16 are evenly distributed on the outer side of the curved surface of the inner cylinder 7.

[0028] The inner wall of the outer cylinder 3 and the outer wall of the inner cylinder 7 are filled with a first-grade thermal insulation filler 18. The sealing cover 20 has a cavity, and the cavity of the sealing cover 20 is filled with a second-grade thermal insulation filler 27.

[0029] Evenly distributed support rods 4 are fixed to the inner wall of the outer cylinder 3. A first fixing ring 5 is fixed to the end of each support rod 4. A second fixing ring 6 is fixed to the connection between the end face of the outer cylinder 3 and the inner cylinder 7. A positioning ring 8 is rotatably installed inside both the first fixing ring 5 and the second fixing ring 6, and both positioning rings 8 are fixed to the outer wall of the inner cylinder 7.

[0030] A toothed ring 12 is fixedly connected to the air pipe 9. A gear 13 is provided on the toothed ring 12 and meshes with it for transmission. A motor 14 is fixed on the outer wall of the outer cylinder 3, and the gear 13 is fixed at the output end of the motor 14.

[0031] A heating control module 17 is fixed on the end face opposite to the inspection port 19 of the outer cylinder 3, and the heating control module 17 is connected to and controls multiple heating rods 16. A wear-resistant sealing ring 26 is fixed on the side curved surface of the piston 25 to slide and seal with the inner wall of the inner cylinder 7.

[0032] The working end of the air pump 15 is fixed with a connecting pipe 11, and a connector 10 is fixedly connected to the end of the connecting pipe 11. The connector 10 is rotatably installed at the end of the air pipe 9.

[0033] A sealing ring 28 is fixed inside the sealing cover 20. A material tube 21 is fixed through the side of the sealing cover 20. A sealing plug 22 is threaded inside the material tube 21, and the sealing plug 22 is fastened to the port of the material tube 21 by bolts.

[0034] A connecting ring 24 is fixedly connected to the sealing cover 20, and a third fixing ring 23 is fixedly connected to the outside of the inspection port 19. The connecting ring 24 and the third fixing ring 23 are fastened together by bolts.

[0035] During operation, due to the viscous nature and poor fluidity of asphalt, existing asphalt mixture heating and insulation devices often experience asphalt mixture buildup and adhesion at the discharge hopper, causing blockages, slow infeed and discharge speeds, severely impacting work efficiency, and hindering effective discharge of asphalt from the inner cylinder, leading to residue buildup. This residue not only increases processing costs but also becomes difficult to clean after hardening, making operation inconvenient. In this solution, the asphalt conveying pipe is connected to port 21 of the material pipe, and then the air pump 15 is controlled... The system operates by evacuating air through the connecting pipe 11 and the air pipe 9 to draw air into the inner cylinder 7. This creates a negative pressure on the side of the piston 25 facing the air pipe 9. Under this pressure, the piston 25 moves to the side opposite to the material pipe 21. The piston 25 then draws the asphalt material into the inner cylinder 7 through the material pipe 21, thus completing the feeding process. The sealing plug 22 is threaded into the material pipe 21 to achieve a sealing effect. The sealing plug 22 is then connected to the material pipe 21 with bolts for reinforcement, ensuring a good seal and preventing asphalt leakage from the material pipe 21.

[0036] Furthermore, the heating control module 17 controls the operation of multiple heating rods 16, which generate heat under the principle of resistance heating to uniformly heat the inner cylinder 7. The motor 14 is controlled to rotate, and under the drive of the motor 14 and the transmission of the gear ring 12, the air pipe 9 is rotated, which in turn causes the inner cylinder 7 to rotate inside the outer cylinder 3. The slow rotation of the inner cylinder 7 allows the asphalt material inside to be uniformly heated, and the asphalt inside the device is kept warm by the first insulation filler 18 and the second insulation filler 27 to ensure that it is in a flowing state.

[0037] When material discharge is required, the sealing plug 22 is removed from the material pipe 21, and then the air pump 15 is controlled to pump air into the inner cylinder 7 through the air pipe 9, and to the side of the piston 25 opposite to the inspection port 19. This increases the air pressure on the side of the piston 25 opposite to the inspection port 19, so that the piston 25 can push the asphalt material in the inner cylinder 7 out, thereby achieving rapid material discharge. This effectively avoids the asphalt material clogging the discharge port and affecting work efficiency. In particular, the sealing effect of the wear-resistant sealing ring 26 between the piston 25 and the inner wall of the inner cylinder 7 makes the material discharge effect better and the material discharge cleaner.

[0038] When it is necessary to clean the residual asphalt material inside the device, the bolts of the connecting ring 24 and the third fixing ring 23 are removed, and the sealing cover 20 is rotated off the inspection port 19 to open the inspection port 19, so as to clean the inside of the inner cylinder 7 and to facilitate the cleaning of the residual asphalt on the sealing cover 20, thus improving the ease of use.

[0039] It achieves the function of heating and heat preservation of asphalt material. Compared with traditional heating and heat preservation devices, the feeding and discharging speed is faster, which effectively improves work efficiency and makes it easier to clean the residual asphalt material in the device, thus improving ease of use.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An asphalt mixture heating and holding device, characterized by: Includes a base (1), on which an outer cylinder (3) is supported and fixed by a bracket (2). An inner cylinder (7) is rotatably disposed through one end of the outer cylinder (3). An air pipe (9) is fixedly connected to the end of the inner cylinder (7) inside the outer cylinder (3), and the end of the air pipe (9) is rotatably disposed outside the outer cylinder (3). An air pump (15) is connected to the end of the air pipe (9) outside the outer cylinder (3). A piston (25) is slidably disposed inside the inner cylinder (7). The inner cylinder (7) is provided with an inspection port (19) at the end located outside the outer cylinder (3). A sealing cap (20) is connected to the outside of the inspection port (19) by a thread. Multiple heating rods (16) are fixed through the end of the outer cylinder (3) opposite to the inspection port (19), and the multiple heating rods (16) are evenly distributed on the outer side of the curved surface of the inner cylinder (7). The inner wall of the outer cylinder (3) and the outer wall of the inner cylinder (7) are filled with a first-level heat-insulating filler (18). The sealing cover (20) has a cavity, and the cavity of the sealing cover (20) is filled with a second-level heat-insulating filler (27).

2. The asphalt mixture heating and insulating device according to claim 1, characterized in that: The inner wall of the outer cylinder (3) is fixed with evenly distributed support rods (4), and the ends of the support rods (4) are fixed with a first fixing ring (5). The connection between the end face of the outer cylinder (3) and the inner cylinder (7) is fixed with a second fixing ring (6). The first fixing ring (5) and the second fixing ring (6) are both rotatably installed with positioning rings (8), and both positioning rings (8) are fixed on the outer wall of the inner cylinder (7).

3. The asphalt mixture heating and insulating device according to claim 1, characterized in that: A toothed ring (12) is fixedly connected to the air pipe (9), and a gear (13) is provided on the toothed ring (12) for meshing and transmission. A motor (14) is fixed on the outer wall of the outer cylinder (3), and the gear (13) is fixed at the output end of the motor (14).

4. The asphalt mixture heating and insulating device according to claim 1, characterized in that: A heating control module (17) is fixed on the end face opposite to the inspection port (19) of the outer cylinder (3), and the heating control module (17) is connected to and controls multiple heating rods (16). A wear-resistant sealing ring (26) is fixed on the side curved surface of the piston (25) to slide and seal with the inner wall of the inner cylinder (7).

5. The asphalt mixture heating and insulating device according to claim 1, characterized in that: The working end of the air pump (15) is fixed with a connecting pipe (11), and the end of the connecting pipe (11) is fixed with a connector (10), and the connector (10) is rotatably installed at the end of the air pipe (9).

6. The asphalt mixture heating and insulating device according to claim 1, characterized in that: A sealing ring (28) is fixed inside the sealing cover (20), and a material tube (21) is fixed through the side of the sealing cover (20). A sealing plug (22) is threaded inside the material tube (21), and the sealing plug (22) is fastened to the port of the material tube (21) by bolts.

7. The asphalt mixture heating and insulating device according to claim 1, characterized in that: A connecting ring (24) is fixedly connected to the sealing cover (20), and a third fixing ring (23) is fixedly connected to the outside of the inspection port (19), and the connecting ring (24) and the third fixing ring (23) are fastened together by bolts.

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