High soft point coated bitumen storage apparatus
By designing a high-soft-point coated asphalt storage device with a mixing drum and spiral blades, the problems of asphalt adhesion and uneven mixing in existing asphalt storage devices have been solved, achieving uniform mixing and efficient heating of asphalt, and improving the quality and safety of coated asphalt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG CHINA CARBON NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-09
Smart Images
Figure CN224336257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of asphalt production equipment, specifically a high soft point coated asphalt storage device. Background Technology
[0002] Lithium-ion batteries, as a new generation of energy storage power source, possess numerous advantages such as high energy density, long cycle life, low self-discharge, wide operating temperature range, and environmental friendliness. They have been widely used in portable electronic products and power tools, and are gradually expanding into high-tech fields such as electric vehicles, mobile communications, military equipment, and aerospace. The negative electrode material is one of the key factors in evaluating the overall performance of lithium-ion batteries. Currently, the main negative electrode material used in lithium-ion batteries is graphite-based carbon material that has undergone coating modification. This involves using high-soft-point coated asphalt to reduce the specific surface area of the graphite-based carbon material, thereby improving the charge-discharge efficiency and cycle performance of the lithium-ion battery. Currently, during the production process of high-soft-point coated asphalt, the asphalt is stored in a storage device, and it is necessary to ensure that the asphalt can be removed from the storage device in a timely manner.
[0003] Chinese patent document CN208616575U discloses an asphalt storage device, which includes an asphalt tank shell, an asphalt tank liner, an electrical storage box, an insulation layer, a spiral heating wire, a snap-action thermostat, and a pneumatic pump. The asphalt tank shell has a support column on its exterior, an electrical storage box at its lower end, and an asphalt tank liner installed inside the shell. An insulation layer is provided between the shell and the liner, and a spiral heating wire is installed on the exterior of the insulation layer. A snap-action thermostat is installed on one side of the liner, a feed pipe is installed above the liner, an air inlet pipe is installed on one side of the feed pipe, a pneumatic pump is installed above the shell, and a discharge pipe is installed at the lower end of the liner. Although the aforementioned asphalt storage device solves the problem of cooling and solidification during asphalt storage through spiral heating wire heating and insulation layer, it still has the following problems in actual use: 1. Asphalt easily adheres to the inner wall of the tank, which will reduce the equipment volume with long-term use; 2. During the heating process of asphalt, it is impossible to fully stir and mix the new and old asphalt, resulting in the deposition of heavier components in the asphalt and uneven composition in the upper and lower parts of the tank; 3. The old asphalt adhering to the original tank will clump and change its properties after long-term deposition, and the detached clumps will affect the uniformity and stability of the coated asphalt, reduce the quality of the coated asphalt, and even cause serious quality accidents. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a high soft point coated asphalt storage device, which overcomes the shortcomings of the above-mentioned prior art. It can effectively solve the problems of asphalt easily adhering to the inner wall of the existing asphalt storage device, affecting the equipment volume, making it impossible to fully stir and mix the asphalt during the heating process, and causing the old asphalt to precipitate and fall off, affecting the quality of the coated asphalt.
[0005] The technical solution adopted by this utility model is as follows: a high soft point coated asphalt storage device, including an asphalt tank, a tank cover, a heating device, and a mixing assembly. The asphalt tank has a cylindrical tank cavity inside, and a heating device is provided inside the side wall of the asphalt tank. The bottom of the tank cavity is an inverted cone shape, wider at the top and narrower at the bottom. A tank cover is fixedly installed at the upper end of the asphalt tank. A drive motor is installed in the middle of the upper end of the tank cover. The tank cover has a feed inlet and a vent. A discharge outlet is provided at the lower end of the asphalt tank, located at the apex of the inverted cone. A discharge valve is provided at the lower end of the asphalt tank, and the upper end of the inner cavity of the discharge valve is connected to the discharge outlet. A mixing assembly with a mixing drum is provided inside the tank cavity. The mixing assembly includes a mixing top... The system comprises a shaft, a lower stirring shaft, outer spiral blades, inner spiral blades, a spiral scraper, and a lower scraper. The upper part of the upper stirring shaft is mounted on the tank cover via bearings. The drive motor is connected to the upper end of the upper stirring shaft and can drive it to rotate. The lower end of the upper stirring shaft is fixedly connected to a stirring drum via an upper connecting spoke. The lower end of the stirring drum is fixedly connected to the lower stirring shaft via a lower connecting spoke. The outside of the stirring drum is surrounded by spiral scrapers that can scrape off asphalt adhering to the side wall of the tank cavity. The outside of the stirring drum is provided with outer spiral blades that can transport asphalt from the outside of the stirring drum upwards. The inside of the stirring drum is provided with inner spiral blades that can transport asphalt from the inside of the stirring drum downwards. The outside of the lower stirring shaft is provided with a lower scraper, the lower side of which is an inclined surface adapted to the bottom end of the tank cavity.
[0006] The following are further optimizations and / or improvements to the technical solution applied for:
[0007] Furthermore, as a preferred embodiment, the spiral scraper is welded and fixed to the outside of the mixing drum via a scraper connecting rod, and a flow annulus is formed between the inner side of the spiral scraper and the outer side of the mixing drum. The outer diameter of the flow annulus is larger than the outer diameter of the outer spiral blade, and the spiral direction of the spiral scraper is opposite to that of the outer spiral blade.
[0008] Furthermore, as a preferred embodiment, the upper end of the stirring cylinder is provided with an upper guide sleeve, which is a conical shape with a larger upper end and a smaller lower end. The lower end of the upper guide sleeve is welded and fixed to the upper end of the stirring cylinder. The inner diameter of the lower end of the upper guide sleeve is the same as the inner diameter of the upper end of the stirring cylinder. An upper guide annular space is formed between the outer side of the upper end of the upper guide sleeve and the side wall of the tank cavity.
[0009] Furthermore, as a preferred embodiment, the lower end of the stirring cylinder is provided with a lower guide sleeve, which is a conical shape with a smaller upper end and a larger lower end. The upper end of the lower guide sleeve is welded and fixed to the lower end of the stirring cylinder, and the inner diameter of the upper end of the lower guide sleeve is the same as the inner diameter of the lower end of the stirring cylinder.
[0010] Furthermore, as a preferred embodiment, the asphalt tank includes a tank shell and a tank liner. The tank liner is welded and fixed inside the tank shell. The tank cavity is the internal cavity of the tank liner. The heating device is located between the tank shell and the tank liner. The heating device includes a tank insulation layer and a heating wire. The heating wire is spirally coiled inside the tank insulation layer. The lower part of the tank cover is provided with a cover insulation layer. The cover insulation layer is provided with connecting holes corresponding to the inlet and outlet positions, respectively, which are connected to the tank cavity. A safety valve is provided on the outlet, and the safety valve is connected to the tank cavity.
[0011] Furthermore, as a preferred embodiment, a temperature control groove is provided in the middle of the side wall of the tank cavity and a temperature sensor is installed thereon. A control device is provided at the lower outer side of the asphalt tank. The discharge valve is an electrically controlled discharge valve. The signal output terminal of the temperature sensor is electrically connected to the signal input terminal of the control device through a cable. The power terminal of the heating device is electrically connected to an external power source through the temperature controller. The control terminal of the temperature controller and the control terminal of the discharge valve are respectively electrically connected to the control terminal of the control device.
[0012] Furthermore, as a preferred embodiment, the lower part of the asphalt tank is provided with a support body. The top view of the support body is a square frame. Fixing seats are welded and fixed on the front, rear, left and right outer surfaces of the lower part of the asphalt tank. The asphalt tank is fixedly installed on the support body by bolts and fixing seats.
[0013] Furthermore, as a preferred embodiment, a ladder is fixed to the outer left side of the asphalt tank, and a cage-like guardrail is provided on the outside of the ladder.
[0014] This utility model has a reasonable and compact structure and is easy to use. It is heated by a heating device, and the asphalt on the outside of the mixing drum is transferred upward by the mixing assembly with the mixing drum. At the same time, the asphalt inside the mixing drum is transferred downward by the inner spiral blades, so that the asphalt is fully mixed and avoids sedimentation. Meanwhile, the inner wall of the asphalt tank is scraped by the spiral scraper and the lower scraper to prevent asphalt from sticking. It has the characteristics of safety, labor saving, simplicity and high efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main sectional view of Embodiments 1-2 of this utility model;
[0016] Figure 2 This is a schematic diagram of the main sectional view of embodiments 3-7 of this utility model.
[0017] Legend: 1 is the asphalt tank body, 101 is the outer shell of the storage tank, 102 is the inner liner of the storage tank, 2 is the tank cover, 201 is the insulation layer of the cover, 3 is the heating device, 301 is the insulation layer of the tank body, 302 is the heating wire, 4 is the mixing assembly, 401 is the mixing drum, 4011 is the upper guide sleeve, 4012 is the lower guide sleeve, 402 is the upper mixing shaft, 403 is the lower mixing shaft, 404 is the outer spiral blade, and 405 is the inner spiral blade. 406 is the spiral scraper, 4061 is the scraper connecting rod, 407 is the lower scraper, 408 is the upper connecting spoke, 409 is the lower connecting spoke, 5 is the tank cavity, 6 is the drive motor, 7 is the feed inlet, 8 is the exhaust port, 801 is the safety valve, 9 is the discharge port, 10 is the discharge valve, 11 is the temperature sensor, 12 is the control device, 13 is the support body, 14 is the fixed base, 15 is the ladder, and 16 is the cage guardrail. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example 1:
[0020] As attached Figure 1As shown, this utility model provides a high soft point coated asphalt storage device, including an asphalt tank 1, a tank cover 2, a heating device 3, and a mixing assembly 4. The asphalt tank 1 has a cylindrical tank cavity 5 inside. The heating device 3 is installed inside the side wall of the asphalt tank 1. The bottom of the tank cavity 5 is an inverted cone shape, wider at the top and narrower at the bottom. The tank cover 2 is fixedly installed at the upper end of the asphalt tank 1. A drive motor 6 is installed in the middle of the upper end of the tank cover 2. The tank cover 2 has a feed inlet 7 and an exhaust outlet 8. The lower end of the asphalt tank 1 has a discharge outlet 9, which is located at the tip of the inverted cone. The lower end of the asphalt tank 1 has a discharge valve 10, the upper end of which is connected to the discharge outlet 9. The mixing assembly 4 with a mixing drum 401 is installed inside the tank cavity 5. The mixing assembly 4 includes an upper mixing shaft 402, a lower mixing shaft 403, an outer spiral blade 404, and an inner spiral blade. The upper part of the stirring shaft 402 is mounted on the tank cover 2 via bearings. The drive motor 6 is connected to the upper end of the stirring shaft 402 and can drive it to rotate. The lower end of the stirring shaft 402 is fixedly connected to the stirring drum 401 via the upper connecting spoke 408. The lower end of the stirring drum 401 is fixedly connected to the stirring lower shaft 403 via the lower connecting spoke 409. The outer side of the stirring drum 401 is surrounded by a spiral scraper 406 that can scrape off the asphalt adhering to the side wall of the tank cavity 5. The outer side of the stirring drum 401 is provided with an outer spiral blade 404 that can transport the asphalt outside the stirring drum 401 upward. The inner side of the stirring drum 401 is provided with an inner spiral blade 405 that can transport the asphalt inside the stirring drum 401 downward. The outer side of the stirring lower shaft 403 is provided with a lower scraper 407. The lower side of the lower scraper 407 is an inclined surface adapted to the bottom end of the tank cavity 5. The bottom of the tank cavity 5 is an inverted cone shape, which is conducive to the complete emptying of the asphalt stored in the asphalt tank 1. Asphalt is not easily left in the asphalt tank 1, making it easier to clean. Therefore, its performance is better than that of the asphalt tank liner and horizontally set discharge pipe of the existing asphalt storage device disclosed in the background art.
[0021] This invention uses a heating device 3 to heat the asphalt tank 1, preventing the asphalt from cooling and solidifying during storage, thus keeping the asphalt discharged from the outlet 9 in a flowing state and saving heating waiting time each time asphalt is used. By incorporating a mixing assembly 4 with a mixing drum 401, the outer spiral blades 404 transfer the asphalt outside the mixing drum 401 from the lower part of the tank cavity 5 upwards when the mixing assembly 4 rotates, while the inner spiral blades 405 transfer the asphalt inside the mixing drum 401 from the upper part of the tank cavity 5 downwards. This not only effectively increases the contact area between the asphalt and the inner wall of the asphalt tank 1, enabling rapid heating of the asphalt, but also effectively promotes… The mixing of new and old asphalt is achieved by thoroughly stirring the asphalt in the tank cavity 5 during heating, which avoids the deposition of heavier components in the coating asphalt and makes the asphalt composition in the upper and lower parts of the asphalt tank 1 uniform. At the same time, the spiral scraper 406 can scrape the inner side wall of the asphalt tank 1, and the lower scraper 407 can scrape the bottom surface of the asphalt tank 1, so that the asphalt on the inner side wall and bottom surface of the asphalt tank 1 is effectively separated from the inner wall of the asphalt tank 1, preventing asphalt adhesion. At the same time, the lower scraper 407 can also periodically turn over the asphalt at the bottom of the tank cavity 5 to ensure uniform mixing of the asphalt at the bottom of the tank cavity 5. Furthermore, this invention uses the inner spiral blade 405 to actively transport the asphalt inside the mixing drum 401 to the discharge port 9, replacing the existing asphalt storage device in the background art that uses a pneumatic pump to increase air pressure to improve the discharge efficiency of asphalt. Since the tank cavity 5 maintains a relatively good seal and can effectively isolate air, air is prevented from mixing into the coated asphalt, greatly reducing the impact of air on the quality of the coated asphalt.
[0022] Example 2:
[0023] As attached Figure 1 As shown, the difference between this embodiment and Embodiment 1 is that the spiral scraper 406 is welded and fixed to the outside of the mixing drum 401 via a scraper connecting rod 4061. A flow annulus is formed between the inner side of the spiral scraper 406 and the outer side of the mixing drum 401. The outer diameter of the flow annulus is larger than the outer diameter of the outer spiral blade 404, and the spiral direction of the spiral scraper 406 is opposite to that of the outer spiral blade 404. By making the spiral directions of the spiral scraper 406 and the outer spiral blade 404 opposite, the asphalt between the outer side of the mixing drum 401 and the side wall of the tank cavity 5 can be agitated and mixed, resulting in a better mixing effect.
[0024] Example 3:
[0025] As attached Figure 2As shown, the difference between this embodiment and embodiments 1-2 is that the upper end of the mixing drum 401 is provided with an upper guide sleeve 4011. The upper guide sleeve 4011 is a conical shape, wider at the top and narrower at the bottom. The lower end of the upper guide sleeve 4011 is welded and fixed to the upper end of the mixing drum 401. The inner diameter of the lower end of the upper guide sleeve 4011 is the same as the inner diameter of the upper end of the mixing drum 401. An upper guide annular space is formed between the outer side of the upper end of the upper guide sleeve 4011 and the side wall of the tank cavity 5. The upper guide sleeve 4011 can guide the flow direction of the asphalt above the mixing drum 401. The flow area of the upper guide annular space is smaller than the flow area between the outer side of the lower part of the upper guide sleeve 4011 and the side wall of the tank cavity 5, which can increase the flow rate of the upward-moving asphalt, so that the asphalt in the upper part of the tank cavity 5 flows into the mixing drum 401 quickly, accelerating the mixing with the asphalt in the mixing drum 401, thereby increasing the asphalt mixing speed. In addition, as shown in the attached... Figure 2 As shown, the upper end of the spiral scraper 406 can be located above the upper end of the upper guide sleeve 4011 to better scrape off the asphalt adhering to the side wall. The upper end of the spiral scraper 406 can be welded and fixed to the outside of the mixing shaft 402 by the scraper connecting rod 4061.
[0026] Example 4:
[0027] As attached Figure 2 As shown, the difference between this embodiment and embodiments 1-3 is that a lower guide sleeve 4012 is provided at the lower end of the mixing drum 401. The lower guide sleeve 4012 is a conical shape with a smaller upper end and a larger lower end. The upper end of the lower guide sleeve 4012 is welded and fixed to the lower end of the mixing drum 401, and the inner diameter of the upper end of the lower guide sleeve 4012 is the same as the inner diameter of the lower end of the mixing drum 401. The lower guide sleeve 4012 can guide the flow direction of asphalt in the mixing drum 401, so that the asphalt flowing out of the lower end of the mixing drum 401 can quickly diffuse outward along the inner side of the lower guide sleeve 4012. Due to the rotation and stirring of the lower scraper 407, the outwardly diffused asphalt particles collide and mix with the asphalt particles at the bottom of the tank cavity 5 outside the mixing drum 401, making the asphalt mixture more uniform, thereby effectively improving the mixing effect. See attached... Figure 2 As shown, the lower connecting spoke 409 can be fixed to the lower end of the inner wall of the lower guide sleeve 4012, or fixed to the lower end of the inner wall of the stirring cylinder 401, and connected to the lower stirring shaft 403 through the lower connecting spoke 409.
[0028] Example 5:
[0029] As attached Figure 1-2As shown, the difference between this embodiment and embodiments 1-4 is that the asphalt tank 1 includes a tank shell 101 and a tank liner 102. The tank liner 102 is welded and fixed inside the tank shell 101. The tank cavity 5 is the internal cavity of the tank liner 102. The heating device 3 is located between the tank shell 101 and the tank liner 102. The heating device 3 includes a tank insulation layer 301 and an electric heating wire 302. The electric heating wire 302 is spirally coiled inside the tank insulation layer 301. The lower part of the tank cover 2 is provided with a cover insulation layer 201. The cover insulation layer 201 is provided with connecting holes corresponding to the positions of the feed port 7 and the exhaust port 8, respectively, which are connected to the tank cavity 5. The exhaust port 8 is provided with a safety valve 801, which is connected to the tank cavity 5. The heating wire 302 can easily heat the inner tank 102. The tank insulation layer 301 between the outer shell 101 and the inner tank 102, as well as the cover insulation layer 201 at the bottom of the cover 2, can effectively save energy and reduce energy consumption.
[0030] Example 6:
[0031] As attached Figure 1-2 As shown, the difference between this embodiment and embodiments 1-5 is that a temperature control groove is provided in the middle of the side wall of the tank cavity 5, and a temperature sensor 11 is installed thereon. A control device 12 is provided at the lower outer side of the asphalt tank 1. The discharge valve 10 is an electrically controlled discharge valve. The signal output terminal of the temperature sensor 11 is electrically connected to the signal input terminal of the control device 12 via a cable. The power terminal of the heating device 3 is electrically connected to an external power source. A thermostat is electrically connected between the power terminal of the heating device 3 and the external power source. The control terminal of the thermostat and the control terminal of the discharge valve 10 are respectively electrically connected to the control terminal of the control device 12. The temperature inside the tank cavity 5 can be detected in real time by the temperature sensor 11. The heating element 302 of the heating device 3 is controlled by switching the power on and off by the control device 12 and the thermostat. The discharge valve 10 is controlled by the control device 12, making discharge not only more convenient but also safer. (See attached diagram) Figure 1 , 2 As shown, the temperature control groove is set on the side wall of the inner liner 102 of the storage tank, the control device 12 is set at the lower end of the outer shell 101 of the storage tank, and the temperature controller is electrically connected between the power terminal of the heating wire 302 and the external power supply.
[0032] Example 7:
[0033] As attached Figure 1-2As shown, the difference between this embodiment and embodiments 1-6 is that the lower part of the asphalt tank 1 is provided with a support body 13. The top view of the support body 13 is a square frame. Fixing seats 14 are welded and fixed to the front, rear, left, and right outer surfaces of the lower part of the asphalt tank 1. The asphalt tank 1 is fixedly installed on the support body 13 by bolts and fixing seats 14. By setting a detachable support body 13, the height and overall size of the asphalt tank 1 can be reduced, making it easier to transport the asphalt tank 1. The connection between the asphalt tank 1 and the support body 13 by bolts and fixing seats 14 is firm and reliable, and disassembly and assembly are relatively convenient and quick.
[0034] A ladder 15 is fixed to the outer left side of the asphalt tank 1, and a cage-like guardrail 16 is provided on the outside of the ladder 15. The ladder 15 facilitates workers to climb to the top of the asphalt tank 1 to inspect and repair the equipment components on the upper part of the tank cover 2, as well as to inspect and clean the inside of the asphalt tank 1. The cage-like guardrail 16 effectively improves safety.
[0035] In the description of this application, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0036] This utility model is described in the appendix to the specification. Figure 1 For reference purposes, directional terms such as "up," "down," "left," "right," "top," and "bottom" are used only to better and more clearly explain and understand this utility model, and are not intended to indicate or imply that the device or component 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.
[0037] The preferred embodiments of this utility model have been described above, but should not be construed as limiting the claims. This utility model is not limited to the above embodiments, and its specific structure may vary. Any simple modifications, equivalent changes, and substitutions made to the above embodiments based on the technical essence of this utility model are still within the protection scope of this utility model.
Claims
1. A high-soft-point coated asphalt storage device, characterized in that: The system includes an asphalt tank, a tank cover, a heating device, and a mixing assembly. The asphalt tank has a cylindrical internal cavity. The heating device is located within the side wall of the asphalt tank. The bottom of the tank cavity is an inverted cone shape, wider at the top and narrower at the bottom. A tank cover is fixedly installed at the top of the asphalt tank. A drive motor is installed in the middle of the upper part of the tank cover. The tank cover has an inlet and an outlet. A discharge port is located at the apex of the inverted cone at the bottom of the asphalt tank. A discharge valve is located at the bottom of the asphalt tank, and the upper end of the inner cavity of the discharge valve is connected to the discharge port. A mixing assembly with a mixing drum is located inside the tank cavity. The mixing assembly includes an upper mixing shaft, a lower mixing shaft, outer spiral blades, and an inner... The mixing shaft comprises a spiral blade, a spiral scraper, and a lower scraper. The upper part of the mixing shaft is mounted on the tank cover via bearings. The drive motor is connected to the upper end of the mixing shaft and can drive it to rotate. The lower end of the mixing shaft is fixedly connected to the mixing drum via an upper connecting spoke. The lower end of the mixing drum is fixedly connected to the mixing shaft via a lower connecting spoke. The outer side of the mixing drum is surrounded by a spiral scraper capable of scraping off asphalt adhering to the side wall of the tank cavity. The outer side of the mixing drum is provided with an outer spiral blade capable of conveying asphalt upward from the outside of the mixing drum. The inner side of the mixing drum is provided with an inner spiral blade capable of conveying asphalt downward from the inside of the mixing drum. The outer side of the mixing shaft is provided with a lower scraper, the lower side of which is an inclined surface adapted to the bottom end of the tank cavity.
2. The high soft point coated asphalt storage device according to claim 1, characterized in that: The spiral scraper is welded and fixed to the outside of the mixing drum via a scraper connecting rod. A flow annulus is formed between the inner side of the spiral scraper and the outer side of the mixing drum. The outer diameter of the flow annulus is larger than the outer diameter of the outer spiral blade. The spiral direction of the spiral scraper is opposite to that of the outer spiral blade.
3. A high soft point coated asphalt storage device according to claim 1 or 2, characterized in that: The upper end of the stirring drum is provided with an upper guide sleeve, which is a conical shape with a larger upper end and a smaller lower end. The lower end of the upper guide sleeve is welded and fixed to the upper end of the stirring drum. The inner diameter of the lower end of the upper guide sleeve is the same as the inner diameter of the upper end of the stirring drum. An upper guide annular space is formed between the outer side of the upper end of the upper guide sleeve and the side wall of the tank cavity; or / and, the lower end of the stirring drum is provided with a lower guide sleeve, which is a conical shape with a smaller upper end and a larger lower end. The upper end of the lower guide sleeve is welded and fixed to the lower end of the stirring drum. The inner diameter of the upper end of the lower guide sleeve is the same as the inner diameter of the lower end of the stirring drum.
4. A high soft point coated asphalt storage device according to claim 1 or 2, characterized in that: The asphalt tank includes a tank shell and a tank liner. The tank liner is welded and fixed inside the tank shell. The tank cavity is the internal cavity of the tank liner. The heating device is located between the tank shell and the tank liner. The heating device includes a tank insulation layer and a heating wire. The heating wire is spirally coiled inside the tank insulation layer. The lower part of the tank cover is provided with a cover insulation layer. The cover insulation layer has connecting holes that communicate with the tank cavity at the positions corresponding to the inlet and outlet. A safety valve is provided on the outlet, and the safety valve communicates with the tank cavity.
5. A high soft point coated asphalt storage device according to claim 3, characterized in that: The asphalt tank includes a tank shell and a tank liner. The tank liner is welded and fixed inside the tank shell. The tank cavity is the internal cavity of the tank liner. The heating device is located between the tank shell and the tank liner. The heating device includes a tank insulation layer and a heating wire. The heating wire is spirally coiled inside the tank insulation layer. The lower part of the tank cover is provided with a cover insulation layer. The cover insulation layer has connecting holes that communicate with the tank cavity at the positions corresponding to the inlet and outlet. A safety valve is provided on the outlet, and the safety valve communicates with the tank cavity.
6. A high soft point coated asphalt storage device according to claim 1, 2, or 5, characterized in that: A temperature control groove is provided in the middle of the side wall of the tank cavity and a temperature sensor is installed thereon. A control device is provided at the lower outer side of the asphalt tank. The discharge valve is an electrically controlled discharge valve. The signal output terminal of the temperature sensor is electrically connected to the signal input terminal of the control device through a cable. The power terminal of the heating device is electrically connected to an external power source through the temperature controller. The control terminal of the temperature controller and the control terminal of the discharge valve are electrically connected to the control terminal of the control device, respectively.
7. A high soft point coated asphalt storage device according to claim 3, characterized in that: A temperature control groove is provided in the middle of the side wall of the tank cavity and a temperature sensor is installed thereon. A control device is provided at the lower outer side of the asphalt tank. The discharge valve is an electrically controlled discharge valve. The signal output terminal of the temperature sensor is electrically connected to the signal input terminal of the control device through a cable. The power terminal of the heating device is electrically connected to an external power source through the temperature controller. The control terminal of the temperature controller and the control terminal of the discharge valve are electrically connected to the control terminal of the control device, respectively.
8. A high soft point coated asphalt storage device according to claim 4, characterized in that: A temperature control groove is provided in the middle of the side wall of the tank cavity and a temperature sensor is installed thereon. A control device is provided at the lower outer side of the asphalt tank. The discharge valve is an electrically controlled discharge valve. The signal output terminal of the temperature sensor is electrically connected to the signal input terminal of the control device through a cable. The power terminal of the heating device is electrically connected to an external power source through the temperature controller. The control terminal of the temperature controller and the control terminal of the discharge valve are electrically connected to the control terminal of the control device, respectively.
9. A high soft point coated asphalt storage device according to claim 1, 2, 5, 7, or 8, characterized in that: The lower part of the asphalt tank is provided with a support body. The top view of the support body is a square frame. Fixing seats are welded and fixed on the front, rear, left and right outer surfaces of the lower part of the asphalt tank. The asphalt tank is fixedly installed on the support body by bolts and fixing seats; or / and, a ladder is fixed on the outer left side of the asphalt tank. The ladder is provided with a cage-like guardrail.
10. A high soft point coated asphalt storage device according to claim 6, characterized in that: The lower part of the asphalt tank is provided with a support body. The top view of the support body is a square frame. Fixing seats are welded and fixed on the front, rear, left and right outer surfaces of the lower part of the asphalt tank. The asphalt tank is fixedly installed on the support body by bolts and fixing seats; or / and, a ladder is fixed on the outer left side of the asphalt tank. The ladder is provided with a cage-like guardrail.