Energy-saving asphalt heating furnace

Abstract

The utility model discloses an energy-saving asphalt heating furnace, which belongs to the technical field of asphalt heating equipment and comprises a heating furnace body, a bottom frame fixedly mounted at the lower end of the heating furnace body, a skid-mounted base fixedly mounted at the lower end of the bottom frame, a top cover fixedly mounted at the upper end of the heating furnace body, and a motor fixedly mounted in the center of the upper end of the top cover. The motor is electrically connected with an external controller through a connecting wire, a first rotating shaft is fixedly installed at the output end of the motor and extends into the heating furnace body, a second rotating shaft is fixedly installed at the lower end of the first rotating shaft, a connecting rod is movably installed on the outer side of the second rotating shaft, and a discharging pipe is fixedly installed at the lower end of the heating furnace body located in the bottom frame. Firstly, the first heating coil and the second heating coil are arranged in the heating furnace body and can be matched with each other to heat the medium cavity, so that two-way heating of asphalt in the heating furnace body is realized, the heating efficiency of the asphalt is improved, the heating time of the asphalt is shortened, and the increase of energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt heating equipment, in particular to an energy-saving asphalt heating furnace. Background Art

[0002] Asphalt heating furnace is a professional equipment used to heat asphalt. It is widely used in asphalt pavement paving, asphalt concrete production and other fields. Through the heating equipment, the cooled asphalt can be quickly heated to a suitable temperature, saving construction time and improving construction efficiency. At the same time, the heating equipment can control the heating temperature of the asphalt to ensure that the asphalt will not deteriorate during the heating process, thus ensuring the quality of the asphalt.

[0003] For example, the Chinese utility model patent disclosed by publication number CN216337441U: a frost-resistant emulsified asphalt heating furnace. When heating the asphalt, the application starts the motor through the coordinated use of the motor, the incomplete gear, the screw, the stirring impeller, and the furnace body. At this time, the incomplete gear rotates, further causing the screw to rotate forward and reverse periodically. At this time, the stirring impeller can periodically stir the asphalt in the furnace body forward and reversely, thereby achieving the effect of facilitating the stirring of the asphalt in the furnace and improving the heating uniformity. However, due to its special tooth shape design, the incomplete gear may cause precision problems in the meshing process, affecting the stability and accuracy of the gear transmission. During the meshing process, the incomplete gear may cause uneven distribution of contact stress between the gear tooth surfaces due to the irregularity of the tooth shape, thereby accelerating the wear of the gear;

[0004] In addition, the application also uses a threaded block in conjunction with a lifting rod, a scraper, and a furnace body. At this time, the threaded block drives the lifting rod to move up and down periodically, and further causes the scraper to move up and down periodically. At this time, the scraper can scrape the asphalt attached to the inner wall of the furnace body. However, since the threaded block is threadedly connected to the screw rod, and the threaded block and the scraper are structures that restrict their axial movement, the screw rod will drive the threaded block to rotate together, and the threaded block, the lifting rod, and the scraper cannot move up and down. At the same time, the application heats the asphalt through an internal heating wire, which makes the asphalt heating efficiency inside the furnace body low, resulting in a longer heating time for the asphalt, which will increase energy consumption and increase heating costs. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving asphalt heating furnace, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An energy-saving asphalt heating furnace comprises a heating furnace body, a base frame is fixedly installed at the lower end of the heating furnace body, a skid-mounted base is fixedly installed at the lower end of the base frame, a top cover is fixedly installed at the upper end of the heating furnace body, a motor is fixedly installed at the center position of the upper end of the top cover, the motor is electrically connected to an external controller through a connecting line, and a first rotating shaft is fixedly installed at the output end of the motor and extends into the heating furnace body, a second rotating shaft is fixedly installed at the lower end of the first rotating shaft, a connecting rod is movably installed on the outer side of the second rotating shaft, a discharge pipe is also fixedly installed at the lower end of the heating furnace body located in the base frame, a delivery pump is fixedly installed on the skid-mounted base located on one side of the base frame, the delivery pump is electrically connected to an external controller through a connecting line, and a feeding pipe is fixedly connected to the upper end of the heating furnace body at the output end of the delivery pump, and a first heating coil and a second heating coil are also fixedly installed in the heating furnace body.

[0008] As a further preferred embodiment of the present invention, a heating medium cavity is provided in the heating furnace body, and the heating medium cavity is connected to an external heating device through a pipeline.

[0009] As a further preferred scheme of the utility model, the first heating coil and the second heating coil are fixedly connected by a fixed connecting pipe at one end, and the other ends of the first heating coil and the second heating coil are respectively connected to the external circulation equipment through the heating furnace body, and a fixing hoop is fixedly installed on the outside of the connecting pipe. Through the arrangement of the first heating coil and the second heating coil, the external heating medium can circulate in the first heating coil and the second heating coil, thereby cooperating with the heating medium cavity to realize rapid and uniform heating of the asphalt in the heating furnace body.

[0010] As a further preferred embodiment of the present invention, the fixing hoop is fixedly installed with a support rod by bolts, a fixing seat is fixedly installed at one end of the support rod away from the fixing hoop, and the end of the fixing seat opposite to the support rod is fixedly installed inside the heating furnace body by welding.

[0011] As a further preferred embodiment of the present invention, the transverse cross-section of the second rotating shaft is a regular hexagon, a stirring blade is fixedly installed on the lower end of the second rotating shaft, and the second rotating shaft is placed at the center position inside the first heating coil and the second heating coil.

[0012] As a further preferred scheme of the utility model, a sleeve block is fixedly installed in the middle position of the connecting rod, and a through groove with a regular hexagonal transverse cross-section is opened in the sleeve block, scrapers are fixedly installed at both ends of the connecting rod, and a guide sleeve is fixedly installed on the connecting rod between the sleeve block and the scraper, the connecting rod is inserted and installed on the second rotating shaft through the sleeve block, and the two guide sleeves are respectively inserted and installed on the outside of the first heating coil, and one side of the two scrapers is in contact with the inside of the heating furnace body. Through the arrangement of the second rotating shaft, the connecting rod and the sleeve block, the connecting rod can cooperate with the guide sleeve to move up and down using the first heating coil, so as to cooperate with the stirring blade to stir the asphalt in the heating furnace body and scrape off the asphalt remaining on the inner wall when the heating furnace body is unloaded.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The energy-saving asphalt heating furnace described in the utility model firstly realizes bidirectional heating of asphalt in the heating furnace body by arranging a first heating coil and a second heating coil in the heating furnace body to cooperate with the heating medium cavity, thereby improving the heating efficiency of asphalt, reducing the heating time of asphalt, and reducing the increase of energy consumption;

[0015] In addition, by setting up the second rotating shaft and connecting rod, sleeve block, scraper, guide sleeve, and cooperating with the first heating coil, the inner wall of the heating furnace body can be cleaned when unloading the heating furnace body while ensuring the stirring function of the asphalt in the heating furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly of the heating furnace structure of the utility model;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 It is a schematic diagram of the connection structure between the second rotating shaft and the connecting rod of the utility model.

[0020] In the figure: 1. heating furnace body; 2. base frame; 3. skid-mounted base; 4. top cover; 5. motor; 6. first rotating shaft; 7. second rotating shaft; 8. connecting rod; 9. discharge pipe; 10. conveying pump; 11. feeding pipe; 12. first heating coil; 13. second heating coil; 14. fixing hoop; 15. heating medium cavity; 16. connecting pipe; 17. support rod; 18. fixing seat; 19. stirring blade; 20. sleeve block; 21. scraper; 22. guide sleeve. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 4 As shown, the utility model provides an energy-saving asphalt heating furnace, including a heating furnace body 1, a base frame 2 is fixedly installed at the lower end of the heating furnace body 1, a skid-mounted base 3 is fixedly installed at the lower end of the base frame 2, a top cover 4 is fixedly installed at the upper end of the heating furnace body 1, a motor 5 is fixedly installed at the center position of the upper end of the top cover 4, the motor 5 is electrically connected to an external controller through a connecting line, and a first rotating shaft 6 is fixedly installed at the output end of the motor 5 and extends into the heating furnace body 1, a second rotating shaft 7 is fixedly installed at the lower end of the first rotating shaft 6, a connecting rod 8 is movably installed on the outer side of the second rotating shaft 7, a discharge pipe 9 is also fixedly installed at the lower end of the heating furnace body 1 located in the base frame 2, a delivery pump 10 is fixedly installed on the skid-mounted base 3 located on one side of the base frame 2, the delivery pump 10 is electrically connected to an external controller through a connecting line, and a feeding pipe 11 is fixedly connected to the upper end of the heating furnace body 1 at the output end of the delivery pump 10, and a first heating coil 12 and a second heating coil 13 are also fixedly installed in the heating furnace body 1.

[0023] like Figure 2-Figure 3 As shown, a heating medium cavity 15 is provided in the heating furnace body 1, and the heating medium cavity 15 is communicated with an external heating device through a pipeline, the first heating coil 12 and the second heating coil 13 are fixedly connected by a connecting pipe 16 at one end, and the other ends of the first heating coil 12 and the second heating coil 13 pass through the heating furnace body 1 to be connected with an external circulation device, and a fixing hoop 14 is fixedly installed on the outside of the connecting pipe 16. Through the arrangement of the first heating coil 12 and the second heating coil 13, the external heating medium can circulate in the first heating coil 12 and the second heating coil 13, so as to cooperate with the heating medium cavity 15 to realize rapid and uniform heating of the asphalt in the heating furnace body 1, and the fixing hoop 14 is fixedly installed with a support rod 17 by bolts, and a fixing seat 18 is fixedly installed on the end of the support rod 17 away from the fixing hoop 14, and the end of the fixing seat 18 away from the support rod 17 is fixedly installed on the inner side of the heating furnace body 1 by welding;

[0024] like Figure 2 , Figure 4As shown, the transverse section of the second rotating shaft 7 is a regular hexagon, a stirring blade 19 is fixedly installed at the lower end of the second rotating shaft 7, and the second rotating shaft 7 is placed at the center position of the first heating coil 12 and the second heating coil 13. A sleeve block 20 is fixedly installed at the middle position of the connecting rod 8, and a through groove with a regular hexagonal transverse section is opened in the sleeve block 20. Scrapers 21 are fixedly installed at both ends of the connecting rod 8, and a guide sleeve 22 is fixedly installed on the connecting rod 8 located between the sleeve block 20 and the scraper 21. The connecting rod 8 is inserted and installed on the second rotating shaft 7 through the sleeve block 20, and the two guide sleeves 22 are respectively inserted and installed on the outside of the first heating coil 12, and one side of the two scrapers 21 contacts the inside of the heating furnace body 1. Through the arrangement of the second rotating shaft 7, the connecting rod 8 and the sleeve block 20, the connecting rod 8 can cooperate with the guide sleeve 22 to move up and down using the first heating coil 12, so as to cooperate with the stirring blade 19 to stir the asphalt in the heating furnace body 1 and scrape off the asphalt remaining on the inner wall when the heating furnace body 1 is unloaded.

[0025] It should be noted that the utility model is an energy-saving asphalt heating furnace. When the asphalt is stirred and heated, the heating medium can be circulated in the heating medium cavity 15 and the first heating coil 12 and the second heating coil 13 respectively through the external heating equipment. Then, the asphalt to be heated can be transported to the heating furnace body 1 through the delivery pump 10 and the feeding pipe 11. Then, the motor 5 is started through the external controller, so that the motor 5 drives the first rotating shaft 6 and the second rotating shaft 7 to rotate forward for a certain distance in the heating furnace body 1, and then the second rotating shaft 7 drives the sleeve block 20 to rotate, so that the sleeve block 20 drives the connecting rod 8 to rotate, and the connecting rod 8 drives the two outer guide sleeves 22 to rotate on the outside of the first heating coil 12 respectively, so as to utilize the setting of the first heating coil 12 and the connecting rod 8. When the second rotating shaft 7 drives the sleeve block 20 to rotate, the connecting rod 8 rotates downward along the path of the first heating coil 12. At the same time, the scrapers 21 at both ends of the connecting rod 8 scrape the asphalt attached to the inner wall of the heating furnace body 1 respectively. At the same time, the second rotating shaft 7 also drives the stirring blade 19 to rotate in the heating furnace body 1, thereby stirring the asphalt in the heating furnace body 1. After the motor 5 rotates and moves, the motor 5 automatically rotates in the opposite direction, so that the first rotating shaft 6 and the second rotating shaft 7 drive the connecting rod 8 to rotate in the opposite direction, and then the connecting rod 8 uses the two guide sleeves 22 to cooperate with the first heating coil 12 to rotate upward in the heating furnace body 1, thereby achieving the purpose of rapid heating of the asphalt in the heating furnace body 1. At the same time, when the asphalt is discharged, the asphalt attached to the inner wall of the heating furnace body 1 is scraped in a spiral path with the help of the two scrapers 21.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An energy-saving asphalt heating furnace, characterized in that: The heating furnace body (1) comprises a base frame (2) fixedly mounted at the lower end of the heating furnace body (1), a skid-mounted base (3) fixedly mounted at the lower end of the base frame (2), a top cover (4) fixedly mounted at the upper end of the heating furnace body (1), a motor (5) fixedly mounted at the center position of the upper end of the top cover (4), the motor (5) being electrically connected to an external controller via a connecting line, and a first rotating shaft (6) fixedly mounted at the output end of the motor (5) and extending into the heating furnace body (1); A second rotating shaft (7) is fixedly mounted at the lower end of the first rotating shaft (6), a connecting rod (8) is movably mounted on the outer side of the second rotating shaft (7), a discharge pipe (9) is also fixedly mounted at the lower end of the heating furnace body (1) located in the base frame (2), a delivery pump (10) is fixedly mounted on a skid-mounted base (3) located on one side of the base frame (2), the delivery pump (10) is electrically connected to an external controller via a connecting line, and a feeding pipe (11) is fixedly connected between the output end of the delivery pump (10) and the upper end of the heating furnace body (1), and a first heating coil (12) and a second heating coil (13) are also fixedly mounted in the heating furnace body (1).

2. The energy-saving asphalt heating furnace according to claim 1 is characterized in that: A heating medium cavity (15) is provided in the heating furnace body (1), and the heating medium cavity (15) is connected to an external heating device via a pipeline.

3. The energy-saving asphalt heating furnace according to claim 1 is characterized in that: One end of the first heating coil (12) and the second heating coil (13) are fixedly connected by a connecting pipe (16); the other ends of the first heating coil (12) and the second heating coil (13) respectively pass through the heating furnace body (1) to be connected to an external circulation device; a fixing hoop (14) is fixedly mounted on the outside of the connecting pipe (16).

4. The energy-saving asphalt heating furnace according to claim 3 is characterized in that: The fixing hoop (14) is fixedly mounted with a support rod (17) by means of bolts, one end of the support rod (17) away from the fixing hoop (14) is fixedly mounted with a fixing seat (18), and one end of the fixing seat (18) away from the support rod (17) is fixedly mounted on the inner side of the heating furnace body (1) by means of welding.

5. The energy-saving asphalt heating furnace according to claim 1 is characterized in that: The transverse cross-section of the second rotating shaft (7) is a regular hexagon, a stirring blade (19) is fixedly mounted on the lower end of the second rotating shaft (7), and the second rotating shaft (7) is placed at the center position inside the first heating coil (12) and the second heating coil (13).

6. The energy-saving asphalt heating furnace according to claim 1 is characterized in that: A sleeve block (20) is fixedly mounted in the middle of the connecting rod (8), a through slot having a regular hexagonal cross section is provided in the sleeve block (20), scrapers (21) are fixedly mounted at both ends of the connecting rod (8), a guide sleeve (22) is fixedly mounted on the connecting rod (8) between the sleeve block (20) and the scraper (21), the connecting rod (8) is inserted and mounted on the second rotating shaft (7) through the sleeve block (20), and the two guide sleeves (22) are respectively inserted and mounted on the outside of the first heating coil (12), and one side of the two scrapers (21) abuts against the inside of the heating furnace body (1).

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