An asphalt storage tank for asphalt processing

Abstract

This utility model discloses an asphalt storage tank for asphalt processing, relating to the field of asphalt storage technology. The asphalt storage tank includes an outer tank, a tank cover, and an inner tank. The mixing assembly includes a drive motor, with a mixing shaft limit frame fixedly connected to the output end of the drive motor. A mixing shaft support frame is fixedly connected inside the inner tank. Two asphalt mixing blades are fixedly connected to the surface of the mixing shaft, and multiple connecting rods are fixedly connected to the surface of the mixing shaft. Three scrapers are provided on the inner side of the inner tank. When the mixing assembly is running, the scrapers move in a circular motion around the axis of the inner tank synchronously with the mixing shaft, effectively scraping away asphalt adhering to the inner wall of the inner tank in real time. This reduces asphalt waste. Furthermore, the detachable and washable design of the mixing shaft, connecting rods, scrapers, and mixing blades facilitates disassembly and cleaning, solving the problems of traditional tanks requiring manual cleaning during shutdown, high cleaning difficulty, and significant asphalt loss, while also improving cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of asphalt storage technology, and in particular to an asphalt storage tank for asphalt processing. Background Technology

[0002] In the asphalt processing industry, asphalt storage tanks, as core storage equipment, play a crucial role in the temporary or long-term storage of processed asphalt. Their operational performance directly affects the subsequent transportation and use of asphalt, as well as the efficiency and cost control of the overall processing flow. Currently, most asphalt storage tanks on the market adopt a traditional single-tank structure design, which can only achieve the basic storage function of asphalt. They have significant performance shortcomings when dealing with the storage challenges posed by the physical properties of asphalt itself, and can no longer meet the modern asphalt processing industry's demands for efficient, convenient, and economical storage equipment.

[0003] Asphalt, a highly viscous organic cementitious material, exhibits significant variations in viscosity with temperature. Under normal or low-temperature storage conditions, its viscosity increases dramatically, while its fluidity decreases sharply. This characteristic makes asphalt highly susceptible to adhesion during long-term storage in storage tanks; a large amount of asphalt adheres tightly to the inner wall surface of the tank, forming an unevenly thick adhesion layer. This adhesion layer not only causes significant asphalt waste and reduces the actual effective storage capacity but also greatly hinders subsequent cleaning of the storage tank. Therefore, this invention proposes a novel solution. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an asphalt storage tank for asphalt processing that can solve the problem of a large amount of asphalt tightly adhering to the inner wall surface of the storage tank, forming an unevenly thick adhesive layer. This adhesive layer not only causes serious asphalt waste and reduces the actual effective storage capacity, but also greatly hinders the subsequent cleaning work of the storage tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an asphalt storage tank for asphalt processing, comprising an outer tank, a tank cover, and an inner tank; A stirring assembly is mounted on the storage tank lid. The stirring assembly includes a drive motor, which is mounted on the upper end of the storage tank lid. The output end of the drive motor is fixedly connected to a stirring shaft limit frame, which is rotatably connected to the storage tank lid. The inner tank of the asphalt storage tank is fixedly connected to a mixing shaft support frame. The mixing shaft is provided on the opposite side of the mixing shaft support frame and the mixing shaft limiting frame. The mixing shaft limiting frame and the mixing shaft support frame are respectively sleeved on the upper and lower ends of the mixing shaft. The lower end of the stirring shaft limiting frame is provided with a stirring shaft limiting groove, which is hexagonal prism in shape. The upper end of the stirring shaft is also hexagonal prism in shape, and the hexagonal prism at the upper end of the stirring shaft engages with the stirring shaft limiting groove. Two asphalt mixing blades are fixedly connected to the surface of the mixing shaft, and multiple connecting rods are fixedly connected to the surface of the mixing shaft. Three scrapers are provided on the inner side of the asphalt storage tank, and the three scrapers are fixedly connected to the corresponding connecting rods.

[0006] Preferably, both of the asphalt mixing blades are spiral-shaped, and the spiral directions of the two asphalt mixing blades are opposite.

[0007] Preferably, all three scrapers are plate-shaped.

[0008] Preferably, the outer tank and the tank cover of the asphalt storage tank are fixed together by bolts.

[0009] Preferably, the outer tank and the inner tank of the asphalt storage tank are fixedly connected to each other by a plurality of connecting blocks, and an electric heating coil is installed on the surface of the inner tank.

[0010] Preferably, a tank sealing ring is fixedly connected to the inner side of the storage tank cover, and the tank sealing ring is engaged with the inner tank of the asphalt storage tank.

[0011] Preferably, the upper end of the storage tank cover is fixedly connected to a feed pipe, and the lower end of the outer tank of the asphalt storage tank is fixedly connected to a discharge pipe.

[0012] Preferably, a drain pipe can be fixedly connected to the lower end of the outer tank of the asphalt storage tank, and the drain pipe is connected to the gap between the outer tank and the inner tank of the asphalt storage tank.

[0013] Preferably, all three scrapers are arranged at an angle.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This asphalt storage tank for asphalt processing features a scraper that fits tightly against the inner wall of the tank. During operation of the mixing assembly, the scraper moves synchronously around the axis of the inner tank along with the mixing shaft, effectively scraping away the asphalt adhering to the inner wall in real time. The scraped asphalt, under its own weight and the convection of the mixing blades, can reintegrate into the main asphalt within the tank. This avoids the problem of reduced effective tank capacity due to long-term accumulation and hardening of the adhering asphalt, and also reduces asphalt waste. Furthermore, the detachable and washable design of the mixing shaft, connecting rod, scraper, and mixing blades facilitates disassembly and cleaning, solving the problems of traditional tanks requiring manual cleaning during shutdown, high cleaning difficulty, and significant asphalt loss, while also improving cleaning efficiency.

[0015] 2. This asphalt storage tank for asphalt processing has two spiral asphalt mixing blades with opposite spiral directions. When rotating, the bidirectional spiral structure can generate bidirectional mixing force on the asphalt inside the tank. On the one hand, it breaks the static storage state of the asphalt, avoiding the stratification phenomenon caused by the settling of heavy components and the floating of light components. On the other hand, it enhances the internal convection of the asphalt, and the heating effect of the electric heating coil further reduces the viscosity of the asphalt, significantly improving the overall fluidity of the asphalt, and solving the problems of asphalt stratification and poor fluidity caused by the lack of mixing or uneven mixing in traditional tanks. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of an asphalt storage tank for asphalt processing according to the present invention; Figure 2 This is a schematic diagram of the electric heating coil of this utility model; Figure 3 This is a schematic diagram of the tank sealing ring of this utility model; Figure 4 This is a schematic diagram of the stirring shaft support frame of this utility model; Figure 5 This is a schematic diagram of the asphalt mixing blade of this utility model; Figure 6 This is a schematic diagram of the stirring shaft of this utility model; Figure 7 This is a schematic diagram of the drain pipe of this utility model; Figure 8 This is a schematic diagram of the scraper of this utility model.

[0017] Reference numerals in the attached drawings: 1. Outer tank of asphalt storage tank; 2. Tank cover; 3. Inner tank of asphalt storage tank; 4. Connecting block; 5. Tank sealing ring; 6. Agitator shaft support frame; 7. Drive motor; 8. Agitator shaft limiting frame; 9. Agitator shaft; 10. Connecting rod; 11. Scraper; 12. Asphalt mixing blade; 13. Agitator shaft limiting groove; 14. Electric heating coil; 15. Drain pipe; 16. Feed pipe; 17. Discharge pipe. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-8 This utility model provides a technical solution: an asphalt storage tank for asphalt processing. The outer tank 1 and the tank cover 2 are fixedly connected by bolts. The bolt connection method not only ensures the sealing performance of the tank opening, but also facilitates the subsequent disassembly of the tank cover 2 for maintenance or cleaning of internal components. The bolts are made of corrosion-resistant materials, which can avoid rust caused by long-term contact with asphalt and environmental factors, and extend the service life of the equipment.

[0023] The outer tank 1 and the inner tank 3 of the asphalt storage tank are fixedly connected by multiple connecting blocks 4. The connecting blocks 4 are evenly distributed between the two tanks to ensure that the inner tank 3 is stably fixed inside the outer tank 1, while forming an annular gap between the two tanks. This provides space for possible subsequent heating or insulation of heat transfer oil, and also isolates the external temperature from the asphalt inside the tank.

[0024] The inner side of the storage tank lid 2 is fixedly connected to the tank sealing ring 5. The tank sealing ring 5 is made of a high-temperature resistant and oil-resistant elastic material. When the storage tank lid 2 is fixed to the outer tank 1, the tank sealing ring 5 is precisely engaged with the inner tank 3, which can effectively seal the gaps at the tank opening, prevent the asphalt from evaporating and leaking during storage, and at the same time prevent external dust and impurities from entering the inner tank 3 and contaminating the asphalt.

[0025] The inner tank 3 of the asphalt storage tank is fixedly connected to a mixing shaft support frame 6. The mixing shaft support frame 6 is located at the center of the bottom of the inner tank 3, and a through hole adapted to the mixing shaft 9 is opened in the center of it. It can provide stable support for the lower end of the mixing shaft 9, prevent the mixing shaft 9 from shaking when rotating at high speed, and ensure the stable operation of the mixing component.

[0026] A drive motor 7 is fixedly installed on the upper end of the storage tank cover 2. The output end of the drive motor 7 passes through the storage tank cover 2 and is fixedly connected to the mixing shaft limit frame 8. The drive motor 7 is selected to have a stable output speed, which can provide continuous and uniform power to the mixing components, ensure the stable rotation of the mixing shaft 9, and achieve efficient mixing of asphalt.

[0027] The lower end of the stirring shaft limiting bracket 8 is provided with a hexagonal prism-shaped stirring shaft limiting groove 13, and the upper end of the stirring shaft 9 is in the same hexagonal prism shape. The upper end of the stirring shaft 9 is engaged with the stirring shaft limiting groove 13. This connection method can ensure that the stirring shaft limiting bracket 8 can stably transmit the rotational power to the stirring shaft 9, and it is also convenient to disassemble the stirring shaft 9 for cleaning or maintenance without complicated disassembly steps.

[0028] Two asphalt mixing blades 12 are fixedly connected to the surface of the mixing shaft 9. Both mixing blades 12 are spiral in shape and in opposite directions. The spiral structure can enhance the mixing effect of asphalt. The opposite spiral direction can form bidirectional convection during mixing, break the static deposition state of asphalt, avoid stratification caused by the settling of heavy components and the floating of light components, and at the same time reduce the viscosity of asphalt and improve its fluidity.

[0029] Multiple connecting rods 10 are also fixedly connected to the surface of the stirring shaft 9. The end of the connecting rod 10 away from the stirring shaft 9 is fixedly connected to the scraper 11. The scraper 11 is made of wear-resistant metal material and fits tightly against the inner wall of the inner tank 3. When the stirring shaft 9 rotates, the scraper 11 moves in a circular motion around the axis of the inner tank 3 in sync with it, which can scrape off the asphalt adhering to the inner wall of the inner tank 3 in real time and prevent the asphalt from accumulating and hardening.

[0030] An electric heating coil 14 is wound and installed on the surface of the inner tank 3 of the asphalt storage tank. The electric heating coil 14 is evenly distributed on the outer wall of the inner tank 3. After being energized, the temperature of the inner tank 3 can be raised evenly through heat conduction, thereby driving the asphalt inside the tank to heat up synchronously. This avoids the problems of local overheating and aging of asphalt or adhesion to the tank wall in low-temperature areas caused by traditional local heating, and maintains the appropriate fluidity of asphalt.

[0031] The upper end of the storage tank cover 2 is fixedly connected to the feed pipe 16, which is connected to the inside of the inner tank 3, so that the processed asphalt can be injected into the inner tank 3 for storage. The lower end of the outer tank 1 of the asphalt storage tank is fixedly connected to the discharge pipe 17, which passes through the outer tank 1 and is connected to the bottom of the inner tank 3. The discharge pipe 17 is equipped with a valve to facilitate the control of asphalt discharge and ensure that the discharge process is smooth and controllable.

[0032] The lower end of the outer tank 1 of the asphalt storage tank can also be fixedly connected to the drain pipe 15. The drain pipe 15 is connected to the annular gap between the outer tank 1 and the inner tank 3. When the heat transfer oil or other heating medium is injected into the gap between the two tanks, the drain pipe 15 can be used to discharge the waste heating medium, which is convenient for medium replacement. At the same time, the drain pipe 15 is equipped with a valve to control the discharge process and avoid medium leakage and waste.

[0033] Working principle: After the asphalt is processed, the asphalt to be stored is injected into the inner tank 3 of the asphalt storage tank through the feed pipe 16 fixed at the upper end of the storage tank cover 2. At this time, the outer tank 1 and the inner tank 3 of the asphalt storage tank are kept at a fixed distance through multiple connecting blocks 4 to form a double-layer protective structure, which can isolate the influence of external temperature fluctuations on the asphalt in the tank and avoid abnormal changes in viscosity of the asphalt due to sudden temperature changes.

[0034] The tank sealing ring 5, which is fixedly connected to the inner side of the storage tank lid 2, is precisely engaged with the inner tank 3 to achieve a tank opening seal, preventing leakage of asphalt due to evaporation during storage, and avoiding external dust and impurities from entering the inner tank 3 and contaminating the asphalt. Furthermore, the storage tank lid 2 is fixed to the outer tank 1 with bolts, further enhancing the sealing effect and providing convenience for subsequent disassembly and maintenance.

[0035] To address the issues of high viscosity and poor flowability of asphalt at normal or low temperatures, an electric heating coil 14 is installed on the surface of the inner tank 3. Throughout the asphalt storage process, the electric heating coil 14 can be energized according to the asphalt characteristics and storage requirements. The energized electric heating coil 14 generates heat, which is transferred to the outer wall of the inner tank 3 through heat conduction, causing the overall temperature of the inner tank 3 to rise uniformly, thereby driving the temperature of the asphalt inside the tank to rise synchronously. Compared with traditional local heating methods, the electric heating coil 14 surrounding the inner tank 3 can achieve uniform temperature control of the asphalt throughout the entire process, effectively avoiding the problems of localized asphalt overheating and aging or localized asphalt adhesion to the tank wall at low temperatures. It keeps the asphalt in a suitable temperature range for flow, laying the foundation for subsequent mixing, discharge, and cleaning.

[0036] To prevent asphalt from separating during storage and to further improve its fluidity, the mixing components installed inside the tank are activated. The specific process is as follows: Start the drive motor 7 fixed on the upper part of the storage tank lid 2 (corresponding to Figure 3 , Figure 4 The output of the drive motor 7 drives the stirring shaft limiting frame 8 to rotate synchronously. Since the stirring shaft limiting groove 13 at the lower end of the stirring shaft limiting frame 8 is hexagonal prism and the upper end of the stirring shaft 9 is also hexagonal prism, the upper end of the stirring shaft 9 is precisely engaged with the stirring shaft limiting groove 13, so that the rotational power of the stirring shaft limiting frame 8 can be directly transmitted to the stirring shaft 9, driving the stirring shaft 9 to rotate synchronously.

[0037] When the mixing shaft 9 rotates, the two asphalt mixing blades 12 fixedly connected to its surface rotate accordingly; both asphalt mixing blades 12 are spiral in shape and in opposite directions, which can generate a bidirectional spiral mixing force on the asphalt in the tank during rotation: On the one hand, it can break the static storage state of asphalt and avoid the stratification phenomenon caused by the settling of heavy components and the floating of light components in asphalt; on the other hand, the bidirectional spiral structure can enhance the internal convection of asphalt, and with the heating effect of the electric heating coil 14, further reduce the viscosity of asphalt and improve the overall fluidity.

[0038] The stirring shaft support frame 6, which is fixedly connected inside the inner tank 3, is sleeved on the lower end of the stirring shaft 9 and cooperates with the upper stirring shaft limit frame 8 to form two-point support for the stirring shaft 9, ensuring that the stirring shaft 9 remains stable during high-speed rotation and avoiding uneven stirring or wear of parts due to shaking.

[0039] While the mixing components are operating, the asphalt inside the inner tank 3 is cleaned simultaneously. Multiple connecting rods 10 fixedly connected to the surface of the mixing shaft 9 rotate synchronously with the mixing shaft 9, and three scrapers 11 are fixedly connected to the corresponding connecting rods 10. Therefore, the scrapers 11 will move in a circular motion around the axis of the inner tank 3 along with the connecting rods 10. Since the scrapers 11 are plate-shaped and fit tightly against the inner wall of the inner tank 3, the asphalt adhering to the inner wall of the inner tank 3 can be scraped off during the rotation. The scraped asphalt is reintegrated into the main asphalt in the tank under its own gravity and the convection of the mixing blades 12, which not only avoids asphalt waste, but also prevents the adhering asphalt from accumulating and hardening for a long time. At the same time, this cleaning process is carried out simultaneously with mixing and heating, without the need for additional shutdown operations, which greatly improves the operating efficiency of the equipment and reduces the cost and safety hazards of subsequent manual cleaning.

[0040] When the stored asphalt is needed, stop the mixing assembly and the electric heating coil 14, and open the valve of the discharge pipe 17 fixedly connected to the lower end of the outer tank 1 of the asphalt storage tank. Under its own gravity and the improved fluidity from the previous mixing, the asphalt in the tank flows smoothly into the discharge pipe 17 along the inner wall of the inner tank 3, and is finally discharged out of the tank for subsequent processing. If a small amount of asphalt remains at the bottom of the inner tank 3, the mixing assembly can be started briefly, and the scraper 11 can be rotated to push the remaining asphalt toward the discharge pipe 17 to ensure that the asphalt is completely discharged and further reduce waste.

[0041] In addition, when the equipment needs maintenance or the mixing components need cleaning, the bolts connecting the storage tank cover 2 and the outer tank 1 can be removed, and the storage tank cover 2, along with the drive motor 7 and the mixing shaft limit bracket 8, can be removed together. Since the mixing shaft 9 is only connected to the mixing shaft limit groove 13 by the upper hexagonal prism and the mixing shaft support bracket 6 by the lower end, and has no fixed connection, the mixing shaft 9 can be directly removed from the inner tank 3, realizing the overall disassembly and cleaning of the mixing shaft 9, asphalt mixing blades 12, connecting rods 10 and scrapers 11. The operation is convenient and the maintenance efficiency is high.

[0042] Furthermore, the scraper 11 is tightly fitted to the inner wall of the inner tank 3. When the mixing assembly is running, the scraper 11 moves in a circular motion around the axis of the inner tank 3 synchronously with the mixing shaft 9, which can scrape off the asphalt adhering to the inner wall of the inner tank 3 in real time. The scraped asphalt can be reintegrated into the main asphalt in the tank under its own gravity and the convection of the mixing blades 12. This not only avoids the problem of reduced effective tank capacity caused by long-term accumulation and hardening of the adhering asphalt, but also reduces asphalt waste. At the same time, the design of the mixing shaft 9, connecting rod 10, scraper 11 and mixing blades 12 is detachable and washable, which facilitates disassembly and cleaning. This solves the pain points of traditional tanks that require manual cleaning after shutdown, are difficult to clean and have a lot of asphalt loss, and improves cleaning efficiency.

[0043] The two spiral asphalt mixing blades 12 have opposite spiral directions. When rotating, the bidirectional spiral structure can generate bidirectional mixing force on the asphalt in the tank. On the one hand, it breaks the static storage state of the asphalt and avoids the stratification caused by the settling of heavy components and the floating of light components. On the other hand, it enhances the internal convection of the asphalt. Combined with the heating effect of the electric heating coil 14, it further reduces the viscosity of the asphalt and significantly improves the overall fluidity of the asphalt, solving the problems of asphalt stratification and poor fluidity caused by the lack of mixing or uneven mixing in traditional tanks.

[0044] The device adopts a double-layer structure of an outer tank 1 and an inner tank 3 for asphalt storage. The two are kept at a fixed distance by multiple connecting blocks 4 to form a double-layer protective space. This structure can effectively isolate the influence of external temperature fluctuations on the asphalt inside the tank, avoid abnormal changes in viscosity of asphalt due to sudden temperature changes, solve the problem of traditional single tanks being easily affected by external temperature and the instability of asphalt fluidity, and provide a stable environment for long-term asphalt storage.

[0045] Example 1: Example of Asphalt Storage Based on Heat Transfer Oil Heating Before asphalt storage operations, the asphalt storage tank is first assembled and heat transfer oil is injected: the outer tank 1 and the inner tank 3 of the asphalt storage tank are kept at a fixed distance by multiple connecting blocks 4, forming a sealed annular gap space; the tank sealing ring 5 on the inner side of the storage tank cover 2 is precisely engaged with the inner tank 3, and the elastic sealing characteristics of the tank sealing ring 5 are used to seal the upper and lower ports of the annular gap between the outer tank 1 and the inner tank 3, ensuring that the gap space is sealed and leak-free; then, heat transfer oil is injected into the gap between the outer tank 1 and the inner tank 3 through the oil injection port preset on the side wall of the outer tank 1, and the oil injection port is sealed by the tank sealing ring 5 after the oil injection is completed; finally, the storage tank cover 2 and the outer tank 1 of the asphalt storage tank are fixed with bolts to complete the assembly. At this time, the lower end of the outer tank 1 of the asphalt storage tank is fixedly connected to the discharge pipe 17, which can be used for asphalt discharge at any time.

[0046] By injecting heat transfer oil between the outer tank 1 and the inner tank 3 of the asphalt storage tank and sealing the gap with 5, the problems of uneven asphalt temperature, local aging, and low-temperature adhesion to the tank wall caused by traditional heating methods in the background technology are solved. The uniform heat transfer characteristics of the heat transfer oil not only ensure the quality of asphalt storage, but also improve the fluidity of asphalt and reduce the amount of residue during discharge. At the same time, it avoids the local damage and heating failure that may occur when the electric heating coil 14 is used for a long time, thus extending the service life of the equipment.

[0047] Example 2: Asphalt Storage and Cleaning Based on Inclined Scrapers The original embodiment replaces the plate-shaped scraper 11 with an inclined scraper 11. Specifically, the scraper 11 and the inner wall of the inner tank 3 remain unchanged. The side of the scraper 11 away from the inner tank 3 is fixed to the stirring shaft 9 by the connecting rod 10. The scraper 11 is inclined at 5°-10° in the direction of rotation of the stirring shaft 9. The inclination angle is adjusted according to the viscosity of the asphalt. The rest of the structural assembly method is consistent with the original patent, ensuring that the upper and lower ends of the stirring shaft 9 are stably connected to the stirring shaft limiting frame 8 and the stirring shaft support frame 6, respectively.

[0048] By replacing the plate-shaped scraper 11 with an inclined one, the problems of incomplete cleaning of tank wall asphalt, excessive residue at the bottom corners of the tank, and easy secondary adhesion of asphalt to the scraper surface in the background technology are solved. The downward thrust generated by the inclined scraper 11 during rotation not only enhances the circulation flow of asphalt and avoids stratification, but also increases the asphalt discharge speed and cleaning thoroughness, reducing asphalt waste. At the same time, for asphalt of different viscosities, the tilt angle of the scraper 11 can be adjusted to adapt to different storage needs, improving the versatility of the equipment and further reducing the cost and safety hazards of subsequent manual cleaning.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An asphalt storage tank for asphalt processing, characterized by: It includes an outer tank (1), a tank cover (2), and an inner tank (3) for asphalt storage. The stirring assembly is set on the storage tank cover (2). The stirring assembly includes a drive motor (7). The drive motor (7) is installed on the upper end of the storage tank cover (2). The output end of the drive motor (7) is fixedly connected to the stirring shaft limit frame (8). The stirring shaft limit frame (8) is rotatably connected to the storage tank cover (2). The inner tank (3) of the asphalt storage tank is fixedly connected to a stirring shaft support frame (6). A stirring shaft (9) is provided on the opposite side of the stirring shaft support frame (6) and the stirring shaft limiting frame (8). The stirring shaft limiting frame (8) and the stirring shaft support frame (6) are respectively sleeved on the upper and lower ends of the stirring shaft (9). The lower end of the stirring shaft limiting bracket (8) is provided with a stirring shaft limiting groove (13), which is hexagonal prism in shape. The upper end of the stirring shaft (9) is hexagonal prism in shape, and the hexagonal prism at the upper end of the stirring shaft (9) is engaged with the stirring shaft limiting groove (13). Two asphalt mixing blades (12) are fixedly connected to the surface of the mixing shaft (9), and multiple connecting rods (10) are fixedly connected to the surface of the mixing shaft (9). Three scrapers (11) are provided on the inner side of the inner tank (3) of the asphalt storage tank, and the three scrapers (11) are fixedly connected to the corresponding connecting rods (10).

2. The asphalt storage tank for asphalt processing according to claim 1, characterized in that: Both of the asphalt mixing blades (12) are spiral-shaped, and the spiral directions of the two asphalt mixing blades (12) are opposite.

3. The asphalt storage tank for asphalt processing according to claim 1, characterized in that: All three scrapers (11) are plate-shaped.

4. The asphalt storage tank for asphalt processing according to claim 1, characterized in that: The outer tank (1) and the tank cover (2) of the asphalt storage tank are fixed together by bolts.

5. The asphalt storage tank for processing asphalt according to claim 1, characterized in that: Multiple connecting blocks (4) are fixedly connected to the opposite surfaces of the outer tank (1) and the inner tank (3) of the asphalt storage tank, and an electric heating coil (14) is installed on the surface of the inner tank (3).

6. The asphalt storage tank for asphalt processing according to claim 1, characterized in that: The inner side of the storage tank cover (2) is fixedly connected to the tank sealing ring (5), and the tank sealing ring (5) is engaged with the inner tank (3) of the asphalt storage tank.

7. The asphalt storage tank for processing asphalt according to claim 1, characterized in that: The upper end of the storage tank cover (2) is fixedly connected to the feed pipe (16), and the lower end of the asphalt storage tank outer tank (1) is fixedly connected to the discharge pipe (17).

8. The asphalt storage tank for asphalt processing according to claim 1, characterized in that: The lower end of the outer tank (1) of the asphalt storage tank can be fixedly connected to the drain pipe (15), and the drain pipe (15) is connected to the gap between the outer tank (1) and the inner tank (3) of the asphalt storage tank.

9. The asphalt storage tank for processing asphalt according to claim 1, characterized in that: All three scrapers (11) can be arranged at an angle.

Images