Movable heating oil drum

Abstract

The utility model relates to a movable heating oil drum which comprises a drum body arranged in a rotating mode, and the drum body comprises a drum side wall and a drum bottom wall connected with the drum side wall. An accommodating cavity for accommodating materials is defined by the barrel side wall and the barrel bottom wall; the barrel body is provided with an opening communicated with the accommodating cavity; the first heating unit is arranged on at least one side of the barrel side wall so as to generate an electromagnetic field in a working state to enable the barrel side wall to actively heat; the first heating unit comprises a first induction coil for generating an electromagnetic field in a working state; the first induction coil comprises a plurality of turns of coils which are arranged at intervals in the axial direction; in the axial direction of the barrel body, the turn intervals of the first induction coils from the opening to the barrel bottom wall are arranged from sparse to dense. According to the movable heating oil drum, the turn spacing of the first induction coil of the first heating unit is arranged from sparse to dense from the opening to the drum bottom wall, so that non-uniform heating of materials in the oil drum due to natural convection heat transfer and heat conduction can be avoided, and the heating uniformity of the materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating device especially relates to mobile heating oil drum. BACKGROUND

[0002] In the related art, the high-temperature steam or heat-conducting oil is usually used to transfer heat to the heating medium (such as air) in the oven by radiation or convection, and then the heat is radiated to the surface of the oil drum to heat the material in the oil drum. The heat source is usually a coal-fired, gas-fired or electric heating tube. Regardless of the open fire, steam, heat-conducting oil or electric heating tube, the heating of the oil drum in the oven is a kind of static natural convection heat exchange. During the heating process, the heat of the material in the oil drum rises after melting or thickening, causing the melted material to concentrate at the upper part, while the temperature at the middle and lower parts is low, and the lower the temperature is, the lower the temperature at the lower part is. This results in uneven heating of the material in the oil drum and cannot achieve precise control of heat and temperature. Moreover, the traditional heat source needs to undergo multiple heat conduction, resulting in high heat loss, slow heating of the material in the oil drum, high energy use cost and energy waste. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an improved mobile heating oil drum.

[0004] The utility model adopts the technical scheme to solve the technical problem thereof: a mobile heating oil drum is constructed, comprising:

[0005] A barrel body is rotatably arranged, the barrel body comprises a barrel side wall and a barrel bottom wall connected with the barrel side wall; the barrel side wall and the barrel bottom wall define a containing cavity for containing material; the barrel body has an opening communicating with the containing cavity;

[0006] A first heating unit is arranged on at least one side of the barrel side wall to generate an electromagnetic field in the working state to actively heat the barrel side wall; the first heating unit comprises a first induction coil generating an electromagnetic field in the working state; the first induction coil comprises a plurality of turns of coils arranged at intervals in the axial direction; in the axial direction of the barrel body, the turn-to-turn spacing of the first induction coil from the opening to the barrel bottom wall is arranged from sparse to dense.

[0007] In some embodiments, the first heating unit comprises at least one heating structure;

[0008] Each of the heating structures comprises the at least one first induction coil;

[0009] The plurality of turns of coils are wound on one side of the barrel side wall or arranged around the outer periphery of the barrel body.

[0010] In some embodiments, the heating structure is at least two, and the at least two heating structures are arranged at intervals in the circumferential direction of the barrel body.

[0011] In some embodiments, the cross-section of the heating structure is arc-shaped or semi-circular.

[0012] In some embodiments, the mobile heating oil tank further includes a rotating mechanism connected to the tank body to drive the tank body to rotate;

[0013] The rotating mechanism includes a turntable and a drive assembly; the drive assembly is connected to the turntable to drive the turntable to rotate; the barrel is disposed on the turntable.

[0014] In some embodiments, the mobile heating oil tank further includes at least two temperature measuring structures, which are arranged at intervals along the tank body.

[0015] In some embodiments, a second heating unit is further included; the second heating unit is disposed on the side of the bottom wall of the barrel opposite to the accommodating cavity, so as to generate an electromagnetic field in the working state to cause the bottom wall of the barrel to actively heat up.

[0016] In some embodiments, the second heating unit includes a second induction coil that generates an electromagnetic field during operation.

[0017] In some embodiments, the mobile heating oil tank further includes a PLC control cabinet connected to the first heating unit and the second heating unit.

[0018] In some embodiments, the mobile heating oil tank further includes a mobile device for mobile installation;

[0019] The mobile device includes a base and a walking mechanism disposed on the base, and the barrel is disposed on the base.

[0020] The mobile heating oil tank of this utility model has the following beneficial effects: By setting a first heating unit on at least one side of the side wall of the tank body, and setting the first induction coil of the first heating unit in a manner from sparse to dense from the opening to the bottom wall of the tank, the uneven heating of the material in the oil tank due to natural convection heat transfer can be avoided, thereby improving the uniformity of material heating, reducing energy consumption, lowering energy costs, and facilitating precise control of heat and temperature. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the mobile heating oil tank of this utility model;

[0023] Figure 2 yes Figure 1A cross-sectional view of the movable heating oil tank shown.

[0024] Figure 3 yes Figure 1 A partial structural schematic diagram of the movable heating oil tank shown.

[0025] Figure 4 yes Figure 1 Another partial structural diagram of the mobile heating oil tank shown;

[0026] Figure 5 yes Figure 1 A top view of the movable heating oil tank shown.

[0027] Figure 6 yes Figure 1 The diagram shows the control logic for heating the portable heating oil tank.

[0028] Figure 7 yes Figure 1 The diagram shows the electrical schematic of a portable heated oil tank. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "lower," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0030] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0032] Figure 1 and Figure 2 Some preferred embodiments of the mobile heating oil tank of this utility model are shown. This mobile heating oil tank can be used to heat liquids or solids, such as adhesives, greases, asphalt, paints, paraffin wax, crude oil, and various resin raw materials, for heating, heat tracing, and heat preservation. The mobile heating oil tank can directly induce heating in an electromagnetic field, causing the material to melt uniformly or decrease in viscosity, facilitating rapid pouring or pump delivery. This mobile heating oil tank is a portable, digitally automatically controlled, fast, uniform, energy-saving, and environmentally friendly intelligent heating device.

[0033] like Figure 1 and Figure 2 As shown, the mobile heating oil tank may include a movable device 10 and a tank body 20 mounted on the movable device 10. The movable device 10 is used to install the tank body 20, facilitating its movement and improving the portability of material transportation. Due to the large size of the oven, the mobile heating oil tank is inconvenient to move in and out. After the material inside the tank body 20 is heated, it needs to be transported to the work site, which presents certain difficulties and increases production and operating costs. By setting up the movable device 10, the high-temperature tank body 20 does not need to be transported twice, making operation safer and more reliable, ensuring the safety of on-site personnel, reducing additional labor costs, and broadening the application scenarios of the mobile heating oil tank. The tank body 20 can be used to contain materials and provide a heating environment for them.

[0034] In some embodiments, the moving device 10 can be a mobile trolley and can be moved manually. In some embodiments, the moving device 10 may include a base 11 and a walking mechanism 12 disposed on the base 11. In some embodiments, the base 11 may be flat and can be used to support the barrel 20 and to install components such as the barrel 20. In some embodiments, the base 11 may be generally square or rectangular. Of course, it is understood that in some other embodiments, the base 11 may not be limited to being square or rectangular, but may also be circular or irregular in shape. In some embodiments, the walking mechanism 12 may be mounted on the bottom surface of the base 11, which facilitates the sliding of the base 11. In some embodiments, the walking mechanism 12 may include multiple pulleys, specifically, there may be four pulleys, which may be correspondingly disposed at the four apex corners of the base 11. Alternatively, they may be divided into two groups, with the two groups of pulleys spaced apart along the width direction of the base 11. Each group has two pulleys, and the two pulleys in each group may be spaced apart along the length direction of the base 11.

[0035] In some embodiments, a fixing bracket 13 may be provided on the base 11. The fixing bracket 13 is disposed on one side of the barrel 20 and can be used to fix the PLC control cabinet. The fixing bracket 13 may include three side plates 131 disposed perpendicular to the base 11. Two of the three side plates 131 are arranged opposite each other and spaced apart, and the third side plate 131 is disposed between the two side plates 131 and is connected and fixed to the two side plates 131. The fixing bracket 13 also includes an end plate 132 disposed at the end of the side plate 131 away from the base 11 and is connected and fixed to each side plate 131. The three side plates 131 and the end plate 132 can form an installation space for installing the PLC control cabinet 90. In some embodiments, some mounting plates may be provided on the inner side of the fixing bracket 13 for installing the PLC control cabinet 90.

[0036] In some embodiments, the fixed bracket 13 is provided with a limiting structure 133 for limiting the barrel 20, and the limiting structure 133 may be provided on one side of the end plate 132. The limiting structure 133 may include two limiting protrusions 1331 extending toward the barrel 20. The two limiting protrusions 1331 may be spaced apart for limiting the installation of the first heating unit 30, which can restrict the first heating unit 30 and the barrel 20 in the space between them to prevent the first heating unit 30 and the barrel 20 from shifting.

[0037] In some embodiments, the fixed bracket 13 further includes a handle 134, which may be disposed on the side of the end plate 132 opposite to the barrel body 20, and can be used by the user to push the moving device.

[0038] In some embodiments, the barrel 20 may be mounted on the base 11 and can move with the moving device. The barrel 20 is also rotatable. The barrel 20 may be made of a metal material that can generate heat in an electromagnetic field, such as stainless steel. The barrel 20 can actively heat up under the influence of an electromagnetic field, thereby heating the material inside the barrel 20. In some embodiments, based on the heating characteristics of the material inside the barrel 20, through the principle of induction heating, magnetic drive technology is used on the barrel wall where heat is needed to achieve efficient active energy conversion, avoiding waste from heat conduction, saving energy, improving safety, and reducing daily maintenance costs.

[0039] like Figures 2 to 5 As shown, in some embodiments, the barrel body 20 may be generally cylindrical and have a hollow inner structure. It is understood that in other embodiments, the barrel body 20 may not be limited to a cylindrical shape; it may be a square column or other shapes. In some embodiments, the barrel body 20 may include a side wall 21 and a bottom wall 22. The side wall 21 may be generally annular. The bottom wall 22 may be circular. The side wall 21 may be connected to the bottom wall 22, and the two may be perpendicularly arranged, defining a receiving cavity 23 for containing materials. In some embodiments, the barrel body 20 further has an opening 24, which may be disposed opposite to the bottom wall 22 and communicate with the receiving cavity 23 for receiving materials.

[0040] In some embodiments, the portable heated oil tank may further include a first heating unit 30, which may be disposed on at least one side of the tank sidewall 21 and may generate an electromagnetic field in the working state to actively heat the tank sidewall 21. Specifically, the first heating unit 30 may be disposed on at least two sides of the tank sidewall 21, such as three sides, or may cover the entire outer periphery of the tank sidewall 21.

[0041] In some embodiments, the first heating unit 30 may include at least one heating structure 31. Specifically, there may be three heating structures 31, which are arranged in an openable configuration and surround the outer periphery of the barrel body 20. In other embodiments, there may be two heating structures 31, which are arranged in an openable configuration and surround the outer periphery of the barrel body 20. In some embodiments, there may also be only one heating structure 31, which may be integrally fitted around the outer periphery of the barrel body 20 or disposed on at least one side of the barrel sidewall 21. In some embodiments, the cross-section of the heating structure 31 may be arc-shaped or semi-circular.

[0042] In some embodiments, the heating structure 31 may include a fixing structure 311 and at least one first induction coil 312. The fixing structure 311 can be used to install and fix the first induction coil 312. Each heating structure 31 may have one first induction coil 312; however, it is understood that in other embodiments, each first heating structure 31 may have two or more first induction coils 312. The first induction coil 312 can generate an electromagnetic field during operation, causing the side wall of the barrel 20 to actively heat up, thereby heating the material in the barrel 20.

[0043] In some embodiments, the cross-section of the fixing structure 311 may be generally arc-shaped, and it is generally tile-shaped or semi-cylindrical. The fixing structure 311 as a whole may be made of a magnetically conductive material, such as low-carbon steel. The inner side of the fixing structure 311 may be hollow, forming a cavity for housing the induction coil 32. The electromagnetic field generated by the induction coil 32 can penetrate the side of the fixing structure 311 facing the barrel 20, thereby placing the barrel 20 in the electromagnetic field. In some embodiments, the fixing structure 311 may also be made of a non-magnetically conductive material, such as a ceramic sheet. The fixing structure 311 is sheet-shaped, and the induction coil 32 may be disposed on the side of the fixing structure 311 facing the barrel 20.

[0044] In some embodiments, the first induction coil 312 may include a multi-turn coil 3121 spaced apart axially on the barrel body 20, the multi-turn coil 3121 being wound around one side of the barrel sidewall 21. Specifically, the multi-turn coil 3121 of each first induction coil 312 may be disposed in a corresponding fixing structure 311. In other embodiments, the multi-turn coil 3121 may also be wound around the outer periphery of the barrel body 20, that is, the multi-turn coil 3121 may take the form of a spring.

[0045] In some embodiments, in the axial direction of the barrel 20, the turn spacing 3122 of the first induction coil 312 from the opening 24 to the bottom wall 22 of the barrel is arranged from sparse to dense. When the first induction coil 312 is working, the first induction coil 312 will cause the side wall 21 of the barrel to generate heat actively. The dense coil 3121 at the bottom ensures that the bottom of the barrel 20 can sense a stronger magnetic field and generate more heat, thereby avoiding uneven heating of the material in the barrel 20 due to natural convection heat transfer and further shortening the heating time.

[0046] In some embodiments, the portable heating oil tank further includes a connecting structure 40, which can be used to connect two adjacent heating structures 31. In some embodiments, two adjacent heating structures 31 can be connected by multiple connecting structures 40, which can be spaced apart along the axial direction of the tank body 20. In some embodiments, the connecting structure 40 may include a rotatably disposed connecting piece 41 and a fastener 42 that cooperates with the connecting piece. The connecting piece 41 may be disposed on one of the two adjacent heating structures 31, and the fastener 42 may be disposed on the other of the two adjacent heating structures 31. Specifically, the connecting piece 41 may be disposed on one of the two adjacent fixed structures 311, and the fastener 42 may be disposed on one of the two adjacent fixed structures 311. One end of the connecting piece 41 is rotatably connected to the fixed structure 311, and the other end may form a free end. A through hole 411 may be provided on the connecting piece 41, which cooperates with the fastener 42. The connecting piece 41 can rotate toward the buckle 42 and is fitted onto the buckle 42 through the through hole 411, thereby connecting and fixing two adjacent heating structures 31. In some other embodiments, the connecting structure 40 is not limited to the above structure; for example, the connecting structure 40 can also be a hinge structure.

[0047] In some embodiments, the mobile heating oil tank further includes a rotating mechanism 50, which can be connected to the tank body 20. This rotating mechanism 50 can drive the tank body 20 to rotate. Specifically, the tank body 20 can rotate around its central axis under the drive of the rotating mechanism 50. The rotation of the tank body 20 allows the electromagnetic field energy around it to act uniformly on the tank wall, ensuring that the tank wall generates heat evenly in the circumferential direction. This avoids the problem of uneven heating of the tank wall caused by uneven magnetic moment structure and uneven magnetic field distribution in the internal metal material of the tank wall. The rotation of the tank body 20 also agitates the material inside, making heat exchange more thorough, accelerating heat conduction and absorption between materials, and allowing the heat from the tank wall to be absorbed by the material more promptly. This further improves the heating and heat transfer speed of the material, effectively ensuring uniform and rapid heating of the material.

[0048] Further, in some embodiments, the rotating mechanism 50 may include a turntable 51 and a drive assembly 52. ​​The turntable 51 may be disposed on the base 11 and may be located at the bottom of the barrel 20. In some embodiments, the barrel 20 may be disposed on the turntable 51 and may be coaxially disposed with the turntable 51. In some embodiments, the barrel 20 may be indirectly disposed on the turntable 51; of course, in other embodiments, it may also be directly disposed on the turntable 51. The drive assembly 52 may be connected to the turntable 51 and drive the turntable 51 to rotate. In some embodiments, the drive assembly 52 may include a drive motor 521 and a drive gear 522, and the drive gear 522 may be connected to the output shaft of the drive motor 521. In some embodiments, a transmission assembly 53 may be disposed between the drive assembly 52 and the turntable 51, and the drive assembly 52 may be connected to the turntable 51 via the rotation assembly 53. In some embodiments, the transmission assembly 53 may include a gear disk 531 coaxially arranged with the turntable 51. The gear disk 531 and the turntable 51 are connected by a connecting shaft 54, which passes through both the turntable 51 and the gear disk 531. The drive gear 522 of the drive assembly 52 may be connected to the gear disk 531. By rotating the drive gear 522, the drive gear 522 can drive the gear disk 531 to rotate, thereby driving the turntable 51 to rotate, and thus driving the barrel 20 to rotate.

[0049] In some other embodiments, the rotating mechanism 50 may not be limited to the structure described above. In some embodiments, the driving component 52 may include a drive motor 521, the output shaft of which may be directly connected to the center of the turntable 51.

[0050] In some embodiments, the portable heating oil tank further includes a second heating unit 60, which is disposed on the side of the tank bottom wall 22 opposite to the receiving cavity 23. The second heating unit 60 generates an electromagnetic field during operation, causing the tank bottom wall 22 to actively heat up, thereby heating the material located in the tank body 20. In some embodiments, by providing the second heating unit 60 at the bottom of the tank body 20, low temperatures at the bottom of the tank body 20 can be avoided, improving the uniformity of heating and achieving precise control of heat and temperature. In some embodiments, the second heating unit 60 may include a second induction coil 61 that generates an electromagnetic field during operation. The second induction coil 61 may be a coiled wire. The second heating unit 60 may be directly fixed to the tank bottom wall 22. In some other embodiments, the second heating unit 60 may be omitted.

[0051] For example Figure 2As shown, in some embodiments, the mobile heating oil tank further includes a heat insulation structure 70, which can be disposed between the second heating unit 60 and the turntable 51. This heat insulation structure 70 can block heat transfer to the rotating mechanism 50, thereby ensuring the normal operation of the rotating mechanism 50. In some embodiments, the heat insulation structure 70 can be a heat insulation pad, such as a silicone pad or a rigid ceramic fiber board.

[0052] In some embodiments, the portable heating oil tank further includes at least two temperature sensing structures 80, which are spaced apart along the axial direction of the tank body 20. In some embodiments, the temperature sensing structures 80 are mounted on the fixed bracket 13 and face the first heating unit 30. It is understood that in other embodiments, the temperature sensing structures 80 may also be mounted on the first heating unit 30 or the side wall 21 of the tank. In some embodiments, the temperature sensing structure 80 can be a conventional temperature sensor. In some embodiments, there may be two temperature sensing structures 80, one near the opening 24 and the other near the bottom wall 22 of the tank. It is understood that in other embodiments, there may be more than two temperature sensing structures 80, such as three or four.

[0053] In some embodiments, by setting multiple temperature measuring structures 80, the temperature above and below the barrel 20 can be monitored in real time at multiple points. The wall temperature signal of the barrel 20 is converted into a 485 communication signal, and the real-time output power is controlled by the digital signal to achieve digital real-time precise control of the heating temperature of the barrel 20. At the same time, it can ensure that the local temperature does not exceed the limit and avoid the material from overheating, denaturing, or coking.

[0054] In some embodiments, the mobile heating oil tank further includes a PLC control cabinet 90, which can be installed in the fixed bracket 13. The PLC control cabinet 90 can be connected to the first heating unit 30 and the second heating unit 60. In some embodiments, the PLC control cabinet 90 can also be connected to the temperature measuring structure 80. In some embodiments, the PLC control cabinet 90 employs digital control technology with DSP embedded software to achieve precise energy output control, ensuring that the entire heating process is temperature-controllable, time-controllable, automatically protected against overheating, and that the production process is controllable according to the temperature rise curve, thus achieving intelligent upgrading of traditional equipment. The control of the first heating unit 30 and the second heating unit 60 by the PLC control cabinet 90 can be achieved using existing technology. In some embodiments, the control logic of the mobile heating oil tank can be as follows: Figure 6 As shown, and its electrical schematic diagram can be as follows: Figure 7 As shown.

[0055] This mobile heating oil tank has the following advantages: It is a mobile intelligent heating oil tank that replaces traditional box-type furnaces or drying rooms, offering high heating efficiency, greater flexibility, higher safety, stronger practicality, and lower cost. By actively heating the tank body 20 in an electromagnetic field, it saves heat loss and avoids carbon emissions and safety hazards associated with open flame heating. The rotating heating method of the tank body 20 ensures more uniform heating, further accelerating the heating speed and saving thermal energy. The arrangement of the first induction coils 312 of the first heating unit 30 from the opening to the bottom wall of the tank in a gradually increasing density pattern allows for full utilization of thermal energy, further improving thermal efficiency. By connecting the first heating unit 30 and the second heating unit 60 to a PLC control cabinet, intelligent heating of the tank body 20 can be achieved.

[0056] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A mobile heating oil drum, characterized in that, The mobile heating oil drum comprises a barrel body (20) arranged in rotation, a first heating unit (30), and a second heating unit (60). The barrel body (20) comprises a barrel side wall (21) and a barrel bottom wall (22) connected with the barrel side wall (21), and the barrel side wall (21) and the barrel bottom wall (22) define a containing cavity (23) for containing materials. The first heating unit (30) is arranged on at least one side of the barrel side wall (21) to generate an electromagnetic field in a working state to make the barrel side wall (21) actively heat.

2. The mobile heating barrel of claim 1, wherein, The first heating unit (30) comprises a first induction coil (312) generating an electromagnetic field in a working state. The first induction coil (312) comprises a plurality of turns of coils (3121) arranged in an axial direction. The turns of the first induction coil (312) are arranged from the opening (24) to the barrel bottom wall (22) in the axial direction of the barrel body (20) in a manner from sparse to dense.

3. The mobile heating barrel of claim 2, wherein, The first heating unit (30) comprises at least one heating structure (31).

4. The mobile heating barrel of claim 3, wherein, Each heating structure (31) comprises the at least one first induction coil (312).

5. The mobile heating barrel of claim 1, wherein, The plurality of turns of coils are arranged in a coil manner on one side of the barrel side wall (21) or are arranged on the outer periphery of the barrel body (20). The heating structure (31) is at least two, and the at least two heating structures (31) are arranged in a circumferential direction of the barrel body (20).

6. The mobile heating barrel of claim 1, wherein, The heating structure (31) has an arc-shaped or semicircular cross section.

7. The mobile heating barrel of claim 1, wherein, The mobile heating oil drum further comprises a rotating mechanism (50) connected with the barrel body (20) to drive the barrel body (20) to rotate.

8. The mobile heating barrel of claim 7, wherein, The rotating mechanism (50) comprises a rotating disc (51) and a driving assembly (52) connected with the rotating disc (51) to drive the rotating disc (51) to rotate.

9. The mobile heating barrel of claim 7, wherein, The barrel body (20) is arranged on the rotating disc (51).

10. The mobile heating barrel of claim 1, wherein, The mobile heating oil drum further comprises at least two temperature measuring structures (80) arranged in an interval along the barrel body (20). The second heating unit (60) is arranged on a side of the barrel bottom wall (22) opposite to the containing cavity (23) to generate an electromagnetic field in a working state to make the barrel bottom wall (22) actively heat. The second heating unit (60) comprises a second induction coil (61) generating an electromagnetic field in a working state. The mobile heating oil drum further comprises a PLC control cabinet (90) connected with the first heating unit (30) and the second heating unit (60). The mobile heating oil drum further comprises a mobile device (10) arranged in movement. The mobile device (10) comprises a base (11) and a traveling mechanism (12) arranged on the base (11), and the barrel body (20) is arranged on the base (11).

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