Cantilever type automatic loading device

Abstract

The invention discloses a cantilever type automatic loading device, which belongs to the field of liquid loading and unloading arms and comprises a stand column, a loading arm body is arranged on one side of the stand column and comprises a liquid-phase inner arm, a liquid-phase outer arm and a plumbing arm which are connected in sequence, and the liquid-phase inner arm and the liquid-phase outer arm are connected through a bent pipe and a rotary joint. The liquid-phase inner arm, the liquid-phase outer arm and the bent pipe are all double-layer sleeves, a plurality of temperature control heating modules are arranged in the inner sleeve, an electromagnetic coil is arranged between the inner sleeve and the outer sleeve, and after the electromagnetic coil is powered on, an alternating magnetic field can be generated to penetrate through the inner sleeve to inductively heat the temperature control heating modules so as to heat a medium in the inner sleeve. Materials can be rapidly heated to a flowing state, and the loading efficiency is improved. Meanwhile, due to the fact that the heating process is accurate and controllable, it can be guaranteed that the materials are kept at the stable temperature in the conveying process, the solidification or blocking problem caused by temperature fluctuation is solved, and the heating device has remarkable advantages and wide application prospects in practical application.

Description

Technical Field

[0001] The present application belongs to the field of liquid loading and unloading arms, and in particular to a cantilever type automatic loading device. Background Art

[0002] Crane pipe, as the name implies, is a pipe that can be extended and moved like a crane neck, also known as a fluid loading and unloading arm. It is mainly used for liquid loading and unloading operations in the petroleum, chemical and other industries, and is a special equipment in the fluid loading and unloading process of the petrochemical industry. The crane pipe is connected to the rigid pipe and elbow through a rotary joint to realize the activity of transmitting liquid media between trains, tank cars and trestle storage and transportation pipelines. It has high safety, flexibility and long service life.

[0003] In scenarios such as loading asphalt and liquid sulfur, since these substances are often solid or semi-solid at room temperature, they need to be transformed into a fluid state under certain high temperature conditions to facilitate transportation and loading. Therefore, in these scenarios, special asphalt loading cranes or liquid sulfur loading cranes are required. These cranes are usually equipped with jacketed steam heating. The principle is to set a jacket layer on the outside or inside of the crane, and pass steam into the jacket to heat the material in the crane using the heat of the steam to reach the required flow temperature, so as to prevent the material from solidifying or blocking the pipeline due to low temperature during transportation.

[0004] However, the heat transfer efficiency of jacket steam tracing in the application of asphalt and liquid sulfur loading is relatively low. The reason is that when the steam flows in the jacket, its heat needs to be transferred to the heated material through the wall of the crane pipe. In this process, the efficiency of heat transfer is affected by many factors such as the jacket material, thickness, structure, and thermal resistance between the steam and the crane pipe wall. Low heat transfer efficiency means that in order to reach the required heating temperature, heat transfer also requires a certain amount of time. Steam will have a certain amount of heat loss during the heat transfer process, including heat conduction loss through the crane pipe wall, convection heat loss of steam in the pipeline, and sensible heat loss when steam is discharged. Therefore, jacket steam tracing needs to consume more steam and energy, thereby increasing production costs and affecting loading efficiency. It can be seen that the existing technology needs to be further improved and enhanced. Summary of the invention

[0005] The invention provides a cantilever type automatic loading device for solving or alleviating the problems of high energy consumption, slow heating speed and low loading efficiency of jacketed steam heating crane pipes for low-temperature easily solidified materials such as asphalt and liquid sulfur.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cantilever automatic loading device comprises a column, and a crane pipe body is arranged on one side of the column. The crane pipe body comprises a liquid phase inner arm, a liquid phase outer arm and a vertical arm which are connected in sequence. The liquid phase inner arm and the liquid phase outer arm are connected by a bend pipe and a rotary joint. The liquid phase inner arm, the liquid phase outer arm and the bend pipe are all double-layer sleeves, wherein the inner sleeve is an insulating tube, and the outer sleeve is a metal tube. A plurality of temperature control and heating modules are arranged in the inner sleeve, and an electromagnetic coil is arranged between the inner sleeve and the outer sleeve. When the electromagnetic coil is powered on, an alternating magnetic field is generated to pass through the inner sleeve to inductively heat the temperature control and heating module, so as to heat the medium in the inner sleeve.

[0008] The cantilever automatic loading device of the present application is designed with an inner arm, a liquid outer arm and a curved pipe, all of which are double-layer sleeve designs, wherein the inner sleeve is an insulating tube and the outer sleeve is a metal tube, which ensures the heating effect and avoids the direct effect of electromagnetic heating on the inner sleeve, thereby preventing potential electromagnetic interference or safety problems. The temperature control heating module is arranged in the inner sleeve, and the electromagnetic coil is arranged between the inner sleeve and the outer sleeve. When the power is turned on, an alternating magnetic field is generated, and the temperature control heating module is inductively heated by the inner sleeve, thereby heating the medium in the inner sleeve. The device can quickly heat the material to a flowing state and improve the loading efficiency. At the same time, since the heating process is precisely controllable, it can ensure that the material maintains a stable temperature during the transportation process, and prevents solidification or blockage problems caused by temperature fluctuations. In addition, the device also has the advantages of compact structure, simple operation, and convenient maintenance, and is suitable for loading operations of various sizes, and has significant advantages and broad application prospects in practical applications.

[0009] In a preferred implementation, the temperature control heating module includes an insulating shell filled with phase change material and embedded with conductive metal parts. The heat generated by the conductive metal parts under electromagnetic induction is absorbed and stored by the phase change material, delaying the release of heat to achieve gentle and uniform heating of the medium in the inner sleeve.

[0010] When the conductive metal parts generate heat under electromagnetic induction, the heat is absorbed and stored by the phase change material instead of being immediately transferred to the medium. This heat storage function makes the heating process more stable and avoids a sharp rise in temperature.

[0011] In a preferred implementation, the temperature control heating module is rotatably arranged on the inner wall of the inner sleeve so as to rotate under the impact of the medium flow direction, thereby reducing the impact resistance and achieving a buffering effect.

[0012] In a preferred implementation, a rotating column is provided on the inner wall of the inner sleeve, and the insulating outer shell is sleeved on the rotating column and can rotate freely.

[0013] In a preferred implementation, a high-precision temperature sensor is disposed inside the rotating column to detect the temperature of the medium inside the inner sleeve in real time and transmit a signal to the controller. The controller controls the power-on parameters of the electromagnetic coil to change the temperature of the temperature-controlled heating module.

[0014] A high-precision temperature sensor is installed inside the rotating column, which can detect the temperature of the medium inside the inner sleeve in real time and accurately, providing reliable data support for the controller. The controller receives the signal from the temperature sensor and automatically adjusts the power-on parameters of the electromagnetic coil according to the preset temperature range, thereby achieving precise control of the temperature of the temperature control heating module and ensuring the stability and uniformity of the medium temperature.

[0015] In a preferred implementation, an electromagnet is disposed on the outer wall of the inner sleeve, and the insulating shell can move linearly along the rotating column. The electromagnet generates magnetism when energized to attract the conductive metal parts in the temperature control heating module, thereby changing the position of the temperature control heating module.

[0016] The temperature control heating module is designed to be able to heat quickly near the electromagnetic coil. Since the efficiency of electromagnetic induction heating is directly related to the distance from the electromagnetic coil, the module can achieve a higher heating rate when it is close to the coil. The heated module is sent to a position far away from the electromagnetic coil for a certain degree of cooling or temperature balance. Subsequently, the module returns to the rapid heating area for the next round of heating, forming a heating-cooling-reheating cycle. Through this periodic movement of the module, it can be ensured that the medium can be evenly heated during the entire flow process.

[0017] In a preferred implementation, electromagnetic coils are respectively arranged at the liquid phase inner arm, the liquid phase outer arm and the bent pipe outlet, and regional heating is achieved by controlling the energization parameters of each coil.

[0018] Regional heating can ensure that the liquid phase is evenly heated throughout the entire flow process, reduce temperature gradients, improve heating efficiency, and accurately control the power-on parameters of each coil to avoid unnecessary energy waste. Sufficient energy is provided in areas that require high heating power, while energy input is appropriately reduced in other areas, thereby achieving optimal energy utilization.

[0019] In a preferred implementation, the rotary joint is a bearing-type jacketed heating rotary joint.

[0020] Jacket heating swivel joint is a special swivel joint that combines bearing support and jacket heating technology. It has the characteristics of smooth operation, good sealing performance, good heating and heat preservation effect, etc. In situations where it is necessary to keep the fluid temperature constant or prevent the fluid from solidifying, this swivel joint can better play its unique advantages and achieve heating without dead angles.

[0021] In a preferred implementation, the crane pipe is powered by an explosion-proof servo motor and a worm gear reducer.

[0022] In a preferred implementation, the vertical arm portion is provided with a positioning sensor and an anti-overflow sensor to improve the filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic structural diagram of a cantilever type automatic loading device of the present application is depicted;

[0025] Figure 2 A schematic diagram of the internal structure of a schematic implementation of the liquid phase inner arm of the present application is depicted;

[0026] Figure 3 Another schematic structural diagram of a liquid phase inner arm of the present application is depicted;

[0027] Figure 4 A schematic structural diagram of a schematic implementation scheme of the temperature control heating module of the present application is depicted;

[0028] Description of labels:

[0029] 1-control box; 2-column; 3-liquid phase inner arm; 30-liquid phase inner arm rotary joint; 31-liquid phase inlet flange; 32-outer sleeve; 33-inner sleeve; 4-liquid phase outer arm; 40-liquid phase outer arm rotary joint; 5-gas phase inner arm; 50-gas phase inner arm rotary joint; 51-gas phase outlet; 6-gas phase outer arm; 60-gas phase outer arm rotary joint; 7-vertical arm; 70-lifting cylinder; 71-alignment sensor; 72-oil overflow prevention probe rod; 73-sealing device; 8-electromagnetic coil; 80-temperature control heating module; 800-insulating shell; 801-conductive metal parts; 802-phase change material; 81-rotating column; 810-temperature sensor; 9-electromagnet. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] The present invention will be described below in conjunction with the accompanying drawings.

[0032] The specific plans adopted are:

[0033] like Figure 1-4 As shown, the present application provides a cantilever automatic loading device, including a column 2, a crane pipe body is provided on one side of the column, the crane pipe body includes a liquid phase inlet flange 31, a liquid phase inner arm 3, a liquid phase inner arm rotary joint 30, a liquid phase outer arm 4, a liquid phase outer arm rotary joint 40 and a vertical arm 7 connected in sequence, and is also provided with a gas phase inner arm 5, a gas phase inner arm rotary joint 50, a gas phase outlet 51, a gas phase outer arm 6, and a gas phase outer arm rotary joint 60. The liquid phase inner arm and the liquid phase outer arm are connected by a bend and a rotary joint. The liquid phase inner arm, the liquid phase outer arm and the bend are all double-layer sleeves, wherein the inner sleeve 33 is an insulating tube, and the outer sleeve 32 is a metal tube. A plurality of temperature control and heating modules are provided in the inner sleeve, and an electromagnetic coil 8 is provided between the inner sleeve and the outer sleeve. When the electromagnetic coil is powered on, an alternating magnetic field is generated to pass through the inner sleeve to inductively heat the temperature control and heating module 80 to heat the medium in the inner sleeve.

[0034] The cantilever automatic loading device of the present application, the liquid inner arm 3, the liquid outer arm 4 and the bent pipe are all designed with double-layer casing, wherein the inner casing is an insulating tube and the outer casing is a metal tube, which ensures the heating effect and avoids the direct effect of electromagnetic heating on the inner casing, preventing potential electromagnetic interference or safety problems. The temperature control heating module is arranged in the inner casing, and the electromagnetic coil is arranged between the inner casing and the outer casing. When the power is turned on, an alternating magnetic field is generated, and the temperature control heating module is inductively heated by the inner casing, thereby heating the medium in the inner casing.

[0035] Compared with jacket steam tracing, the electromagnetic heating system directly acts on the temperature control heating module through an alternating magnetic field, achieving non-contact heating and reducing losses during heat transfer. This direct heating method is more efficient than the indirect heating of jacket steam tracing, and can increase the material temperature faster and shorten the heating time. Due to the high heating efficiency, the electromagnetic heating system can control the heating power more accurately and avoid unnecessary energy consumption. The temperature control heating module in the electromagnetic heating system can adjust the heating power as needed to achieve precise temperature control. This precise temperature control capability helps to ensure that the material maintains a stable temperature range during transportation and prevent changes in material properties or transportation problems caused by temperature fluctuations. The temperature control of jacket steam tracing is relatively extensive and it is difficult to achieve such high accuracy. The electromagnetic heating system in the cantilever automatic loading device adopts a non-contact heating method to avoid potential safety hazards such as steam leakage and scalding in steam tracing. At the same time, the electromagnetic heating system itself also has good electrical safety performance, which can reduce the risk of accidents such as fire and explosion. The electromagnetic heating system does not produce pollutants such as exhaust gas and wastewater, and is environmentally friendly. Jacket steam tracing will produce steam emissions during the heating process, which may have a certain impact on the environment if not handled properly.

[0036] During the loading process of materials such as asphalt and liquid sulfur, the device can quickly heat the materials to a flowing state, thereby improving loading efficiency. At the same time, since the heating process is precisely controllable, it can ensure that the materials maintain a stable temperature during transportation, preventing solidification or blockage problems caused by temperature fluctuations. In addition, the device also has the advantages of compact structure, simple operation, and convenient maintenance. It is suitable for loading operations of various sizes and has significant advantages and broad application prospects in practical applications.

[0037] For media such as asphalt and liquid sulfur, excessively high temperatures or excessive temperature fluctuations may cause changes in their properties, such as reduced viscosity and increased fluidity. Gentle and uniform heating can avoid these problems and ensure the stability of the medium. Therefore, in this embodiment, the temperature control heating module includes an insulating shell 800 to protect the internal phase change material and conductive metal parts from the external environment. The interior is filled with phase change material and embedded with conductive metal parts 801. The phase change material 802 has the characteristics of absorbing and releasing a large amount of heat at a specific temperature. When the conductive metal parts generate heat under electromagnetic induction, the heat is absorbed and stored by the phase change material instead of being immediately transferred to the medium. This heat storage function makes the heating process smoother and avoids a sharp rise in temperature.

[0038] Furthermore, if the temperature control heating module is not fixed and moves with the flow of the medium, although it can also achieve an internal heating effect, it cannot effectively and continuously heat the entire liquid phase arm. In order to solve this problem, the temperature control heating module is designed to be rotated on the inner wall of the inner sleeve and evenly arranged along the inner sleeve. Even if the medium will impact the temperature control heating module during the flow process, it can rotate with the flow direction of the medium to ensure that the contact between the temperature control heating module and the medium is more uniform, thereby achieving uniform heating of the entire arm. The rotation characteristics of the temperature control heating module can reduce the impact resistance when the medium flows. When the medium impacts the heating module, the module will rotate accordingly. This dynamic response can reduce the energy loss and wear caused by direct collision, thereby extending the service life of the temperature control heating module and the inner sleeve.

[0039] Specifically, the inner wall of the inner sleeve is provided with a rotating column 81, and the insulating shell is sleeved on the rotating column and can rotate freely. In addition, a high-precision temperature sensor is arranged inside the rotating column to detect the temperature of the medium inside the inner sleeve in real time and transmit the signal to the controller. The controller controls the power-on parameters of the electromagnetic coil to change the temperature of the temperature control heating module. The rotating column is designed to be detachable, which is convenient for installation and maintenance. The rotating column selects materials with good thermal conductivity and will not be heated by electromagnetic induction, such as ceramics or special alloys. Such material selection can not only ensure the effective transfer of heat, but also avoid electromagnetic interference and ensure the stable operation of the system. The surface of the rotating column is smooth, which helps to reduce the resistance when the medium flows, making the rotation smoother, and also can reduce wear and energy loss. A high-precision temperature sensor is arranged inside the rotating column, which can detect the temperature of the medium inside the inner sleeve in real time and accurately, and provide reliable data support for the controller. The controller component is arranged in the control box 1, and the controller receives the signal of the temperature sensor and automatically adjusts the power-on parameters of the electromagnetic coil according to the preset temperature range, thereby realizing the precise control of the temperature of the temperature control heating module and ensuring the stability and uniformity of the medium temperature. Considering the risk of medium leakage at the interface between the rotating column and the inner sleeve, a reasonable sealing structure is designed, such as using a sealing gasket or an O-ring, to ensure the sealing performance of the system.

[0040] When considering the electromagnetic heating temperature control heating module, the heating efficiency is closely related to the temperature control heating module, especially the distance between the conductive metal part and the electromagnetic coil. If the relative position of the temperature heating module is fixed, then its distance to the electromagnetic coil will also remain unchanged, which may limit the further improvement of the heating efficiency. Therefore, in this embodiment, the relative position of the temperature control heating module and the electromagnetic coil is optimized to improve the heating efficiency and ensure uniform heating of the medium. Specifically, the temperature control heating module is designed to be able to heat quickly at a position close to the electromagnetic coil. Since the efficiency of electromagnetic induction heating is directly related to the distance from the electromagnetic coil, the module can obtain a higher heating rate when it is close to the coil. The heated module is sent to a position far away from the electromagnetic coil for a certain degree of cooling or temperature balance. Subsequently, the module returns to the rapid heating zone for the next round of heating, forming a heating-cooling-reheating cycle. Through this periodic movement of the module, it can be ensured that the medium can be evenly heated throughout the flow process. At the same time, since the module moves between the heating zone and the cooling zone, the problem of local overheating or uneven temperature can be avoided. In addition, it is necessary to set a corresponding limiter on the rotating column to prevent the temperature control heating module from detaching from the rotating column.

[0041] See also Figure 2 and Figure 3, an electromagnet 9 is arranged on the outer wall of the inner sleeve 33, and a magnet part, for example, a high-performance magnet material such as a cobalt iron boron magnet, can be arranged inside the temperature control heating module. By controlling the power on and off of the electromagnet and the direction of the current, the position of the temperature control heating module can be fine-tuned or quickly moved. The temperature control heating module can move linearly along the rotating column to the rapid heating section and the cooling section, which means that the range of heating radiation is no longer fixed, but can be dynamically adjusted as needed. This ensures that the medium can be evenly heated throughout the flow process, improving the heating efficiency and effect. Moreover, during the entire unloading process, the temperature control heating module can be moved back and forth intermittently, which can further promote heat exchange and temperature uniformity between the media. This movement method also helps to reduce the thermal resistance between the heating module and the medium, improve the heat transfer efficiency, and use the magnetism generated by the electromagnet to attract the conductive metal parts in the temperature control heating module, thereby changing the position of the heating module. This control method is simple, reliable and easy to realize automatic control. In order to realize this scheme, the length of the rotating column is designed to be greater than the diameter of the temperature control heating module. Preferably, the length is equal to the radius of the arm, which provides sufficient space for the movement of the temperature control heating module. At the same time, the design of the insulating shell also ensures the safety and stability of the heating module during movement.

[0042] During the movement of the temperature control heating module, the temperature of the medium should be continuously monitored and the temperature signal should be fed back to the controller. The controller adjusts the power supply parameters of the electromagnetic coil and the moving speed of the temperature control heating module in real time according to the temperature signal to ensure the stability and uniformity of the medium temperature.

[0043] As a preferred embodiment of the present application, electromagnetic coils are respectively arranged at the inner arm of the liquid phase, the outer arm of the liquid phase and the elbow. By controlling the energization parameters of each coil, regional heating is achieved. By arranging electromagnetic coils at different positions of the liquid phase, precise heating can be performed according to the flow characteristics and temperature requirements of the liquid phase. Specifically, a higher heating power is required in the inner arm of the liquid phase to overcome the flow resistance, while the heating power may need to be gradually reduced at the outer arm of the liquid phase and the elbow to avoid overheating. Regional heating can ensure that the liquid phase can be evenly heated throughout the flow process, reduce temperature gradients, and improve heating efficiency. Accurately controlling the energization parameters of each coil can avoid unnecessary energy waste. Sufficient energy is provided in areas where high heating power is required, while energy input is appropriately reduced in other areas, thereby achieving optimal utilization of energy.

[0044] As a preferred embodiment of the present application, the rotary joint adopts a bearing-type jacket heating rotary joint. The jacket heating rotary joint is a special rotary joint that combines bearing support and jacket heating technology. It has the characteristics of smooth operation, good sealing performance, and good heating and heat preservation effects. In situations where it is necessary to keep the fluid temperature constant or prevent the fluid from solidifying, this rotary joint can better play its unique advantages.

[0045] As a preferred embodiment of the present application, the crane pipe adopts an explosion-proof servo motor and a worm gear reducer as a set to provide power to achieve automatic rotation of the crane pipe.

[0046] As a preferred embodiment of the present application, the vertical arm part is provided with a lifting cylinder 70, a sealing device 73, an alignment sensor 71 and an anti-overflow sensor. The alignment sensor can monitor the relative position between the vertical arm and the filling port in real time to ensure that the vertical arm can accurately and quickly dock with the filling port during the filling process. This precise alignment reduces the time for filling failure or readjustment due to position deviation, thereby improving the filling efficiency. Anti-overflow sensors such as the anti-overflow oil probe 72 are used to monitor the changes in the liquid level during the filling process. Once the liquid level reaches a preset safe height, the sensor will immediately send a signal to stop the filling operation to prevent liquid overflow. This improves filling efficiency and enhances safety performance.

[0047] Anything not described in the present invention can be achieved by adopting or drawing on existing technologies.

[0048] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A cantilever type automatic loading device, comprising a column, a crane pipe body is arranged on one side of the column, the crane pipe body comprises a liquid phase inner arm, a liquid phase outer arm and a vertical arm connected in sequence, the liquid phase inner arm and the liquid phase outer arm are connected by a bend pipe and a rotary joint, characterized in that: The liquid phase inner arm, liquid phase outer arm and bent pipe are all double-layer sleeves, wherein the inner sleeve is an insulating tube and the outer sleeve is a metal tube. A plurality of temperature control and heating modules are arranged in the inner sleeve, and an electromagnetic coil is arranged between the inner sleeve and the outer sleeve. When the electromagnetic coil is powered on, an alternating magnetic field is generated to pass through the inner sleeve to inductively heat the temperature control and heating module, so as to heat the medium in the inner sleeve.

2. The cantilever type automatic loading device according to claim 1, characterized in that: The temperature control heating module includes an insulating shell, which is filled with phase change material and embedded with conductive metal parts. The heat generated by the conductive metal parts under electromagnetic induction is absorbed and stored by the phase change material, delaying the release of heat to achieve gentle and uniform heating of the medium in the inner sleeve.

3. The cantilever type automatic loading device according to claim 2, characterized in that: The temperature control heating module is rotatably arranged on the inner wall of the inner sleeve so as to rotate under the impact of the medium flow direction, thereby reducing the impact resistance and achieving a buffering effect.

4. The cantilever type automatic loading device according to claim 3, characterized in that: The inner wall of the inner sleeve is provided with a rotating column, and the insulating outer shell is sleeved on the rotating column and can rotate freely.

5. The cantilever type automatic loading device according to claim 4, characterized in that: A high-precision temperature sensor is arranged inside the rotating column to detect the temperature of the medium inside the inner sleeve in real time and transmit the signal to the controller. The controller controls the power-on parameters of the electromagnetic coil and changes the temperature of the temperature-controlled heating module.

6. The cantilever type automatic loading device according to claim 4, characterized in that: An electromagnet is arranged on the outer wall of the inner sleeve, and the insulating shell can move linearly along the rotating column. When the electromagnet is energized, it generates magnetism to attract the conductive metal parts in the temperature control heating module, thereby changing the position of the temperature control heating module.

7. The cantilever type automatic loading device according to claim 1, characterized in that: Electromagnetic coils are respectively arranged at the liquid phase inner arm, liquid phase outer arm and elbow, and regional heating is achieved by controlling the power supply parameters of each coil.

8. The cantilever type automatic loading device according to claim 1, characterized in that: The rotary joint adopts a bearing type jacket heating rotary joint.

9. The cantilever type automatic loading device according to claim 1, characterized in that: The crane pipe is powered by an explosion-proof servo motor and a worm gear reducer.

10. The cantilever type automatic loading device according to claim 1, characterized in that: The vertical arm part is provided with a positioning sensor and an anti-overflow sensor to improve the filling efficiency.

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