Asphalt concrete stock bin device and heating method thereof

Abstract

The invention discloses an asphalt concrete stock bin device and a heating method thereof, and belongs to the technical field of asphalt concrete storage equipment. An asphalt concrete stock bin device comprises an outer bin, an inner container is arranged on the inner side of the outer bin, a cavity structure for heat conduction oil to flow is arranged between the inner wall of the outer bin and the outer wall of the inner container, and a heat preservation piece is arranged in the cavity structure; a liquid box communicated with the cavity structure is arranged on the outer bin, a liquid pump communicated with the liquid box is arranged on the liquid box, and the other end of the liquid pump is communicated with the cavity structure; by arranging the cavity structure between the outer bin and the inner container and filling the cavity structure with the heat preservation piece, heat loss is effectively reduced, the temperature stability of asphalt concrete in the storage and transportation process is maintained, the applicability of the asphalt concrete in cold regions is remarkably improved, and especially in the northwest regions of Xinjiang, Tibet and the like, the heat preservation piece is arranged in the cavity structure. The problems of viscosity increase, easy caking and the like caused by low temperature can be effectively avoided, so that the quality and the construction efficiency of the asphalt concrete are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of asphalt concrete storage equipment, and in particular relates to an asphalt concrete silo device and a heating method thereof. Background Art

[0002] Asphalt concrete core wall dam is being accepted by more and more engineers and gradually becoming one of the main dam types applied in earth-rock dam construction technology because of its excellent water penetration resistance, ability to adapt to deformation of dam shell and transition materials, ability to self-repair after cracks, resistance to earthquake damage, strong environmental adaptability, high safety performance, construction under severe cold conditions after adopting insulation measures, and no need to set structural joints in the entire core wall.

[0003] Traditional asphalt concrete silo devices often lack effective insulation measures, which leads to the temperature of asphalt concrete being easily affected by the external environment and dropping during storage and transportation. This problem is particularly prominent in cold areas in the northwest, such as Xinjiang and Tibet. The low temperature environment may have a significant adverse effect on the quality of asphalt concrete and its subsequent construction and use. Asphalt concrete will have increased viscosity and easy agglomeration under low temperature conditions, which will not only increase the difficulty of construction, but also may affect the stability and durability of roads or building structures. Summary of the invention

[0004] The purpose of the present invention is to provide an asphalt concrete silo device and a heating method thereof in view of the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the invention adopts the following technical scheme: an asphalt concrete silo device, comprising an outer silo, an inner liner is provided on the inner side of the outer silo, a cavity structure for heat transfer oil to flow is provided between the inner wall of the outer silo and the outer wall of the inner liner, and a heat-insulating component is provided in the cavity structure; a liquid tank connected to the cavity structure is provided on the outer silo, a liquid pump connected to the liquid tank is provided on the liquid tank, and the other end of the liquid pump is connected to the cavity structure, a plurality of fixed slats are installed on the inner side wall of the inner liner, and a liquid electric heater is provided on the liquid tank; a bottom cover is provided at the lower end of the outer silo, and an electric push rod is provided between the bottom cover and the outer silo.

[0006] By adopting the above technical solution, the heat transfer oil is heated by a liquid electric heater, and the heat transfer oil flows in the cavity structure, transferring heat to the asphalt concrete material in the inner tank, thereby achieving rapid heating. The insulation components in the cavity structure effectively reduce heat loss, so that the asphalt concrete material in the silo can maintain a high temperature for a long time, avoiding the degradation of material properties due to temperature reduction.

[0007] Optionally, the outer bin is tightly fitted and flush with the lower end of the inner liner, a mounting frame is provided at the lower end of the outer bin and the inner liner, a sealing gasket is installed on the upper surface of the mounting frame, and a mounting groove for installing the sealing gasket is provided at the gap between the outer bin and the inner liner.

[0008] By adopting the above technical solution, the mounting frame provides reliable support for the cavity structure between the outer bin and the inner liner, while the sealing gasket fills the tiny gap between the outer bin and the inner liner, which effectively prevents heat from being lost and seeping out from the gap.

[0009] Optionally, a flange is provided at the upper end of the inner liner, and the lower surface of the flange is in contact with the upper end surface of the outer bin. A pair of sealing rings are installed at the contact between the lower surface of the flange and the upper end surface of the outer bin, and the inner liner is connected to the outer bin via fixing bolts on the flange.

[0010] By adopting the above technical solution, the flange at the upper end of the inner liner fits with the upper end surface of the outer bin, and the sealing performance of the bin is further enhanced by a pair of sealing rings. This design ensures a close fit between the inner liner and the outer bin, and improves the overall insulation and sealing effects.

[0011] Optionally, the cavity structure includes a groove opened on the inner wall of the outer bin and a groove opened on the outer wall of the inner liner, the thermal insulation component is installed in the groove of the inner wall of the outer bin, and the groove on the outer wall of the inner liner is for the heat transfer oil to flow.

[0012] By adopting the above technical solution, the grooves on the outer wall of the inner tank provide a clear flow path for the heat transfer oil. The heat transfer oil flows along these grooves and can be more evenly distributed around the inner tank, thereby more effectively transferring heat to the inner tank and the asphalt concrete material inside it. The grooves on the inner wall of the outer chamber cooperate with the grooves on the outer wall of the inner tank to form a relatively closed heat transfer oil flow space. This design reduces the heat loss of the heat transfer oil during the flow process and improves the heat transfer efficiency.

[0013] Optionally, a liquid adding hole is provided on the side wall of the liquid box, and a plugging cover is provided on the inner side of the liquid adding hole. The liquid box can store the heat transfer oil. The liquid box is connected to a liquid return pipe, and the other end of the liquid return pipe is connected to the cavity structure.

[0014] By adopting the above technical solution, the main function of the liquid tank is to store heat transfer oil. By reasonably designing the capacity and structure of the liquid tank, it can be ensured that there is sufficient heat transfer oil supply during the heating process, thereby meeting the heating demand of the asphalt concrete material in the silo.

[0015] Optionally, the thermal insulation component includes rock wool connected to the groove of the inner wall of the outer bin, and nanofibers bonded to the other side of the rock wool, and the nanofibers are bonded to the rock wool via an inorganic nano-polymer adhesive.

[0016] By adopting the above technical solution, rock wool, as a high-quality thermal insulation material, has the characteristics of high thermal resistance and low thermal conductivity. It can effectively isolate the influence of the external low temperature environment on the internal temperature of the liner and reduce heat loss. Nanofibers have extremely small diameters and extremely high specific surface areas, which enables them to form a dense protective layer on the surface of rock wool, preventing heat transfer oil from entering the rock wool, and at the same time, achieving a heat preservation effect.

[0017] Optionally, connecting holes are respectively provided at both ends of a plurality of the fixing slats, and a plurality of the fixing slats are hollow, and a docking hole docking with the connecting holes is provided on a side wall of the cavity structure.

[0018] By adopting the above technical solution, the connecting holes on the fixed slats are connected with the docking holes of the cavity structure, so that the heat transfer oil can be more evenly distributed around the inner tank, which helps to optimize the heat transfer path and improve the heat transfer efficiency, thereby ensuring that the asphalt concrete material inside the inner tank can reach the required temperature more quickly. At the same time, the design of the fixed slats can prevent the asphalt concrete from agglomerating and has a segregation effect.

[0019] Optionally, a rotating shaft is provided on the inner side of the bottom cover, and auxiliary seats are provided on the outer peripheries of both ends of the rotating shaft, and the two auxiliary seats are respectively connected to the outer warehouse; hinge seats are respectively provided at both ends of the electric push rod, and the two hinge seats are respectively connected to the outer warehouse and the bottom cover.

[0020] By adopting the above technical solution, the rotating shaft arranged inside the bottom cover provides stable support and guidance for the opening and closing of the bottom cover. Through the rotation of the rotating shaft, the bottom cover can be smoothly rotated around its axis to achieve the action of opening or closing. Auxiliary seats are arranged on the periphery of both ends of the rotating shaft. These auxiliary seats are connected to the outer compartment to provide additional support for the rotating shaft. This helps to ensure that the bottom cover remains stable during the opening and closing process, and prevents damage or safety hazards caused by shaking or tilting.

[0021] Optionally, a protection box is provided on the liquid box, and the liquid pump and the liquid electric heater are respectively located on inner sides of the protection box.

[0022] By adopting the above technical solution, the setting of the protective box protects key components such as the liquid pump and liquid electric heater from damage by the external environment. This design not only improves the safety and reliability of the equipment, but also extends the service life of the equipment and ensures the stable operation of the silo device.

[0023] A heating method for an asphalt concrete silo device, the method comprising the following steps:

[0024] Ensure that the heat transfer oil has been added into the liquid tank;

[0025] Check whether the liquid pump, the liquid electric heater and each connecting pipeline are in normal condition;

[0026] If it is in a normal state, starting the liquid electric heater to heat the heat transfer oil in the liquid tank;

[0027] When the heat transfer oil reaches the set temperature, the liquid pump is started to send the heated heat transfer oil into the cavity structure and the fixed slats through the pipeline;

[0028] The heat transfer oil flows in the cavity structure and the fixed strips to heat the asphalt concrete inside the inner tank and the asphalt concrete in the middle of the inner tank;

[0029] During the heating process, the heating speed and temperature are controlled by adjusting the power of the liquid electric heater or the flow rate of the liquid pump;

[0030] When the asphalt concrete reaches the required temperature, the liquid electric heater is turned off, and the heat transfer oil is allowed to circulate in the cavity structure to maintain a stable temperature;

[0031] When it is necessary to stop heating, the liquid pump is first turned off to cut off the circulation of the heat transfer oil and discharge the heated asphalt concrete.

[0032] By adopting the above technical solution, the method has clear steps and is easy to operate. The operator only needs to follow the steps to realize the heating process. By introducing automatic control equipment such as liquid electric heaters and liquid pumps, the method can realize automatic control of the heating process, reduce manual intervention, and improve work efficiency.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. By setting up a cavity structure between the outer compartment and the inner tank and filling it with insulation parts (such as rock wool and nanofibers), the heat loss is effectively reduced, the temperature stability of asphalt concrete during storage and transportation is maintained, and its applicability in cold areas is significantly improved, especially in northwestern regions such as Xinjiang and Tibet. It can effectively avoid problems such as increased viscosity and easy agglomeration caused by low temperature, thereby ensuring the quality and construction efficiency of asphalt concrete.

[0035] 2. The silo device is equipped with components such as a liquid tank, a liquid pump and a liquid electric heater, forming a complete heating and temperature control system. By adjusting the power of the liquid electric heater and the flow of the liquid pump, the internal temperature of the silo can be controlled to ensure that the asphalt concrete always remains within the appropriate temperature range. This function not only improves the performance stability of the asphalt concrete, but also provides more flexibility and convenience for construction.

[0036] 3. By adopting driving mechanisms such as electric push rods, the silo device of the present invention can easily open and close the bottom cover, thereby improving the efficiency and convenience of unloading. At the same time, the use of electric push rods can adjust the opening angle of the bottom cover, thereby controlling the unloading speed of the silo. This function not only reduces the labor intensity of construction workers, but also speeds up the construction progress and reduces construction costs.

[0037] 4. The design of components such as the mounting frame, sealing gasket and sealing ring ensures a close fit and good sealing between the outer bin and the inner tank. These designs improve the thermal insulation effect of the silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the silo device of the present invention;

[0039] Figure 2 It is a schematic diagram of the cross-sectional structure of the silo device of the present invention;

[0040] Figure 3 This is a schematic diagram of the three-dimensional structure of the installation frame of the present invention;

[0041] Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0042] Figure 5 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0043] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing slats of the present invention.

[0044] In the figure: 1. outer compartment; 2. inner tank; 201. fixing slats; 202. mounting frame; 203. sealing gasket; 204. mounting hole; 205. sealing ring; 206. fixing bolt; 207. connecting hole; 3. cavity structure; 4. thermal insulation component; 41. rock wool; 42. nanofiber; 5. liquid tank; 501. liquid return pipe; 502. protective box; 6. liquid pump; 601. liquid supply pipe; 7. liquid electric heater; 8. bottom cover; 801. rotating shaft; 802. auxiliary seat; 9. electric push rod. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0047] like Figure 1 —6, the specific scheme of the embodiment is as follows: an asphalt concrete silo device, including an outer silo 1, the outer silo 1 is the main structure of the silo device, the outer silo 1 not only provides sufficient strength and stability, but also serves as the outer layer of the insulation system to effectively resist the invasion of the external low temperature environment, the inner side of the outer silo 1 is provided with an inner liner 2, the inner liner 2 directly contacts and stores asphalt concrete, and its material and design need to have good corrosion resistance, wear resistance and thermal conductivity, the outer silo 1 is tightly attached to and flush with the lower end of the inner liner 2;

[0048] The lower ends of the outer bin 1 and the inner liner 2 are provided with a mounting frame 202, and a plurality of mounting holes 204 are opened on the mounting frame 202. The mounting frame 202 is connected to the outer bin 1 and the inner liner 2 through the mounting holes 204 and bolts. The mounting frame 202 provides reliable support for the sealing gasket 203. The upper surface of the mounting frame 202 is provided with a sealing gasket 203. A mounting groove for installing the sealing gasket 203 is opened at the gap where the outer bin 1 and the inner liner 2 fit together. The sealing gasket 203 is used to fill the tiny gap between the outer bin 1 and the inner liner 2. The material of the sealing gasket 203 is soft and wear-resistant. The cooperation between the sealing gasket 203 and the sealing groove can effectively prevent the heat transfer oil from leaking out of the cavity structure 3, and prevent the outside air and moisture from entering the interior of the silo.

[0049] The upper end of the inner tank 2 is provided with a flange, and the lower surface of the flange is in contact with the upper end surface of the outer bin 1. A pair of sealing rings 205 are installed at the joint between the lower surface of the flange and the upper end surface of the outer bin 1. The sealing ring 205 further enhances the sealing performance of the silo. The design of the sealing ring 205 ensures a close fit between the inner tank 2 and the outer bin 1 to prevent heat loss. At the same time, it can also prevent the heat transfer oil from leaking out of the upper end of the outer bin 1. The inner tank 2 is connected to the outer bin 1 by the fixing bolts 206 on the flange. The inner side wall of the inner tank 2 is installed with a plurality of fixing strips 201. Both ends of the fixed slats 201 are respectively provided with connecting holes 207, and some of the fixed slats 201 are hollow. The side walls of the cavity structure 3 are provided with docking holes that dock with the connecting holes 207. The connecting holes 207 on the fixed slats 201 are docked with the docking holes of the cavity structure 3, so that the heat transfer oil can be more evenly distributed around the inner liner 2, which helps to optimize the heat transfer path and improve the heat transfer efficiency, thereby ensuring that the asphalt concrete material inside the inner liner 2 can reach the required temperature more quickly. At the same time, the design of the fixed slats 201 can prevent the asphalt concrete from agglomerating and has a segregation effect.

[0050] A cavity structure 3 for the flow of heat transfer oil is provided between the inner wall of the outer bin 1 and the outer wall of the inner tank 2, and a heat-insulating component 4 is provided in the cavity structure. The cavity structure 3 includes a groove provided on the inner wall of the outer bin 1 and a groove provided on the outer wall of the inner tank 2. The heat-insulating component 4 is installed in the groove of the inner wall of the outer bin 1, and the groove on the outer wall of the inner tank 2 is for the flow of the heat transfer oil. The heat-insulating component 4 includes rock wool 41 connected to the groove of the inner wall of the outer bin 1. The rock wool 41, as a high-efficiency heat-insulating material, has excellent heat-insulating performance and chemical stability. Filling the cavity structure 3 with rock wool 41 can effectively isolate the heat transfer oil from the external low-temperature environment. The effect of asphalt concrete is prevented, while preventing heat from being lost from inside the silo, as well as the nanofiber 42 bonded to the other side of the rock wool 41. The nanofiber 42 is a material with a fiber diameter at the nanometer level, which can form a mesh structure with micropores. The size of the micropores of this material can be adjusted, so the oil separation effect of the material can be well controlled. The nanofiber 42 is bonded to the rock wool 41 through an inorganic nano-polymer adhesive. The inorganic nano-polymer adhesive not only has excellent bonding properties, but also can form a good interface bonding with the rock wool 41 and the nanofiber 42. This bonding method reduces the thermal bridge effect inside the insulation component 4 and improves the overall insulation effect.

[0051] The outer bin 1 is provided with a liquid tank 5 connected with the cavity structure 3, the side wall of the liquid tank 5 is provided with a liquid filling hole, the inner side of the liquid filling hole is provided with a plugging cover, the inner side of the liquid tank 5 is provided with heat transfer oil, the liquid tank 5 is connected with a liquid return pipe 501, the other end of the liquid return pipe 501 is connected with the cavity structure 3, the liquid tank 5 is one of the core components of the heating and temperature control system, and the liquid tank 5 is filled with heat transfer oil, which has good thermal conductivity and can quickly transfer heat to the asphalt concrete inside the silo;

[0052] The liquid tank 5 is provided with a liquid pump 6 which is connected to the liquid tank 5. The liquid pump 6 is responsible for extracting the heat transfer oil from the liquid tank 5 and transporting it to the cavity structure 3 through a pipeline. By adjusting the flow rate of the liquid pump 6, the circulation speed of the heat transfer oil in the cavity structure 3 can be controlled, thereby achieving the control of the internal temperature of the silo. The discharge end of the liquid pump 6 is connected to a liquid supply pipe 601, and the other end of the liquid supply pipe 601 is connected to the cavity structure 3.

[0053] The liquid tank 5 is provided with a liquid electric heater 7, which is used to heat the heat transfer oil to a suitable temperature range. By adjusting the power of the liquid electric heater 7, the temperature of the heat transfer oil can be controlled, thereby achieving the adjustment of the temperature inside the silo. The liquid tank 5 is provided with a protection box 502, and the liquid pump 6 and the liquid electric heater 7 are respectively located on the inner side of the protection box 502. The protection box 502 is arranged on the liquid tank 5 to protect key components such as the liquid pump 6 and the liquid electric heater 7 from damage by the external environment. The design of the protection box 502 not only improves the safety and reliability of the equipment, but also extends the service life of the equipment;

[0054] The lower end of the outer bin 1 is provided with a bottom cover 8, which is arranged at the lower end of the outer bin 1 and is used to close the outlet of the silo. A rotating shaft 801 is provided on the inner side of the bottom cover 8, and auxiliary seats 802 are provided on the periphery of both ends of the rotating shaft 801. The two auxiliary seats 802 are respectively connected to the outer bin 1. An electric push rod 9 is provided between the bottom cover 8 and the outer bin 1. The electric push rod 9 serves as a driving mechanism for realizing the opening and closing of the bottom cover 8. By adjusting the telescopic length of the electric push rod 9, the opening angle of the bottom cover 8 can be controlled, thereby adjusting the material discharge speed of the silo. The use of the electric push rod 9 not only improves the efficiency and convenience of unloading, but also reduces the labor intensity of construction personnel. Hinge seats are respectively provided at both ends of the electric push rod 9, and the two hinge seats are respectively connected to the outer bin 1 and the bottom cover 8. The design of the hinge seat enables the bottom cover 8 to rotate flexibly around the rotating shaft 801, thereby realizing the easy opening and closing of the bottom cover 8.

[0055] A heating method for an asphalt concrete silo device, the method comprising the following steps:

[0056] Ensure that the heat transfer oil has been added into the liquid tank 5;

[0057] Check whether the liquid pump 6, the liquid electric heater 7 and each connecting pipe are in normal condition;

[0058] If it is in a normal state, start the liquid electric heater 7 to heat the heat transfer oil in the liquid tank 5;

[0059] When the heat transfer oil reaches the set temperature, the liquid pump 6 is started to send the heated heat transfer oil into the cavity structure 3 and the fixed strip 201 through the pipeline;

[0060] The heat transfer oil flows in the cavity structure 3 and the fixing strips 201 to heat the asphalt concrete inside the inner liner 2 and the asphalt concrete in the middle of the inner liner 2;

[0061] During the heating process, the heating speed and temperature are controlled by adjusting the power of the liquid electric heater 7 or the flow rate of the liquid pump 6;

[0062] When the asphalt concrete reaches the required temperature, the liquid electric heater 7 is turned off, and the heat transfer oil is allowed to circulate in the cavity structure 3 to maintain a stable temperature;

[0063] When it is necessary to stop heating, the liquid pump 6 is first turned off to cut off the circulation of the heat transfer oil and discharge the heated asphalt concrete.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt concrete silo device, characterized in that: It includes an outer warehouse, an inner tank is provided on the inner side of the outer warehouse, a cavity structure for heat transfer oil to flow is provided between the inner wall of the outer warehouse and the outer wall of the inner tank, and a heat preservation component is provided in the cavity structure; a liquid box connected to the cavity structure is provided on the outer warehouse, a liquid pump connected to the liquid box is provided on the liquid box, and the other end of the liquid pump is connected to the cavity structure, a plurality of fixed slats are installed on the inner side wall of the inner tank, and a liquid electric heater is provided on the liquid box; a bottom cover is provided at the lower end of the outer warehouse, and an electric push rod is provided between the bottom cover and the outer warehouse.

2. The asphalt concrete silo device according to claim 1 is characterized in that: The outer bin is tightly attached to and flush with the lower end of the inner liner, and a mounting frame is provided at the lower end of the outer bin and the inner liner, a sealing gasket is installed on the upper surface of the mounting frame, and a mounting groove for installing the sealing gasket is provided at the gap between the outer bin and the inner liner.

3. The asphalt concrete silo device according to claim 1 is characterized in that: A flange is provided at the upper end of the inner container, and the lower surface of the flange is in contact with the upper end surface of the outer bin. A pair of sealing rings are installed at the contact point between the lower surface of the flange and the upper end surface of the outer bin, and the inner container is connected to the outer bin by fixing bolts on the flange.

4. The asphalt concrete silo device according to claim 1 is characterized in that: The cavity structure includes a groove opened on the inner wall of the outer bin and a groove opened on the outer wall of the inner tank. The heat preservation component is installed in the groove of the inner wall of the outer bin, and the groove on the outer wall of the inner tank is for the heat transfer oil to flow.

5. The asphalt concrete silo device according to claim 1, characterized in that: The side wall of the liquid box is provided with a liquid adding hole, and the inner side of the liquid adding hole is provided with a plugging cover. The liquid box can store the heat transfer oil. The liquid box is connected with a liquid return pipe, and the other end of the liquid return pipe is connected to the cavity structure.

6. The asphalt concrete silo device according to claim 1, characterized in that: The heat-insulating component includes rock wool connected to the groove of the inner side wall of the outer bin, and nanofibers bonded to the other side of the rock wool, wherein the nanofibers are bonded to the rock wool via an inorganic nano-polymer adhesive.

7. The asphalt concrete silo device according to claim 1, characterized in that: Both ends of the plurality of fixing strips are respectively provided with connecting holes, and the plurality of fixing strips are hollow, and the side walls of the cavity structure are provided with docking holes docked with the connecting holes.

8. The asphalt concrete silo device according to claim 1, characterized in that: A rotating shaft is provided on the inner side of the bottom cover, and auxiliary seats are provided on the outer peripheries of both ends of the rotating shaft, and the two auxiliary seats are respectively connected to the outer warehouse; hinge seats are respectively provided at both ends of the electric push rod, and the two hinge seats are respectively connected to the outer warehouse and the bottom cover.

9. The asphalt concrete silo device according to claim 1, characterized in that: A protection box is provided on the liquid box, and the liquid pump and the liquid electric heater are respectively located on the inner side of the protection box.

10. The method for heating an asphalt concrete silo device according to claim 1, characterized in that: The method comprises the following steps: Ensure that the heat transfer oil has been added into the liquid tank; Check whether the liquid pump, the liquid electric heater and each connecting pipeline are in normal condition; If it is in a normal state, start the liquid electric heater to heat the heat transfer oil in the liquid tank; When the heat transfer oil reaches a set temperature, the liquid pump is started to deliver the heated heat transfer oil into the cavity structure and the fixed slats through a pipeline; The heat transfer oil flows in the cavity structure and the fixed strips to heat the asphalt concrete inside the inner tank and the asphalt concrete in the middle of the inner tank; During the heating process, the heating speed and temperature are controlled by adjusting the power of the liquid electric heater or the flow rate of the liquid pump; When the asphalt concrete reaches the required temperature, the liquid electric heater is turned off, and the heat transfer oil is allowed to circulate in the cavity structure to maintain a stable temperature; When it is necessary to stop heating, the liquid pump is first turned off to cut off the circulation of the heat transfer oil and discharge the heated asphalt concrete.

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