Charging bucket for cut tobacco charging system and cut tobacco charging system

Abstract

The invention relates to a material tank for a tobacco shred feeding system, which comprises a tank body with an outer wall and an inner wall, and is characterized in that the tank body comprises an electromagnetic heating device arranged between the outer wall and the inner wall, and a material liquid temperature sensor for detecting the temperature of material liquid in the material tank, the electromagnetic heating device and the feed liquid temperature sensor can be in communication connection with a control device, and the control device can control the electromagnetic heating device based on measurement of the feed liquid temperature sensor. The invention further relates to a corresponding tobacco shred feeding system. In this way, closed-loop temperature control and / or regulation of the temperature of the feed liquid in the tank can be achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of tobacco equipment, and in particular to a material tank for a tobacco cutting feeding system and a tobacco cutting feeding system. Background Art

[0002] In the cigarette production process, silk making is the key to determine the quality of cigarettes, and the equipment in this process is the guarantee for achieving silk making quality, which directly affects the output and quality of cigarette production.

[0003] The feeder is the core equipment for the silk thread making of the tobacco factory. The stem processing line, leaf processing line, burley tobacco processing line, leaf silk processing line, and machine expanded silk processing line of the silk workshop are all equipped with feeders. The function of the feeder is to feed the material, improve the material's taste, and meet various requirements such as flavor enhancement, moisture retention, and mildew prevention. One of its main process tasks is to accurately and evenly apply sugar and flavoring to the material. At present, all brands of tobacco liquid in the silk workshop of the cigarette factory are uniformly supplied by the sugar and flavor workshop. Tobacco liquid such as water, alcohol, sugar, etc. are fully dissolved and mixed evenly before being loaded into the material tank for storage. Then, the liquid can be transported from the material tank to the feeder on site.

[0004] In the feeding process of the entire tobacco feeding system, the liquid temperature is one of the important process indicators. The liquid temperature directly affects the quality of cigarette production, and the temperature stability of the tobacco liquid will greatly affect the quality of the tobacco liquid and the stability of the overall flavor of subsequent cigarette products. However, the existing commonly used material tanks are usually material tanks without heating and temperature control. The sugar and flavor workshop usually prepares the liquid required for the first two batches of production the next day in advance. After the liquid is left overnight, the temperature of the liquid cannot meet the process requirements, thus affecting the feeding effect. In addition, for some high-end brands of tobacco, the process requirements require the sugar and flavor workshop to prepare on the same day, which will affect the production progress and the OEE indicators of the workshop equipment. Summary of the invention

[0005] In order to solve the shortcomings existing in the prior art, the present disclosure provides a material tank for a tobacco cutting feeding system and a corresponding tobacco cutting feeding system, wherein the temperature of the material liquid in the material tank can be controlled and / or adjusted.

[0006] In a first aspect, according to the present disclosure, a material tank for a tobacco feeding system is proposed, wherein the material tank includes a tank body having an outer wall and an inner wall, and is characterized in that the tank body includes an electromagnetic heating device arranged between the outer wall and the inner wall, and a liquid temperature sensor for detecting the temperature of the liquid in the material tank, wherein the electromagnetic heating device and the liquid temperature sensor can be communicatively connected with a control device, and the control device can control the electromagnetic heating device based on the measurement of the liquid temperature sensor.

[0007] Therefore, in the material tank according to the present disclosure, by providing an electromagnetic heating device, a material liquid temperature sensor and a control device, closed-loop temperature control and / or regulation of the temperature of the material liquid in the material tank can be achieved. Therefore, the material tank according to the present disclosure is provided with a temperature control system, and the temperature control system can control the electromagnetic heating device according to the temperature of the material liquid to achieve temperature control.

[0008] Therefore, the required liquid temperature that meets the requirements of the feeding process can be set first, and the electromagnetic heating device can be controlled by the control device to heat the liquid in the tank, thereby achieving temperature control of the liquid to effectively ensure the feeding accuracy and tobacco quality of cigarettes. Moreover, for some high-end brands that have high requirements for the temperature of the feeding liquid, advance deployment can also be achieved, thereby effectively improving production efficiency and improving the OEE index of the workshop.

[0009] In some embodiments, the electromagnetic heating device includes a magnetic conductor surrounding the tank body and a coil wound on the magnetic conductor, and the coil can be electrically connected to a power supply device and thus can be powered by the power supply device. This not only achieves rapid adjustment of the output power of the electromagnetic heating device according to the real-time temperature, but also improves the response speed and accuracy of the current regulation of the electromagnetic heating device.

[0010] In some embodiments, the magnetizer partially or completely surrounds the tank body along the circumferential direction of the tank body and / or the magnetizer is configured to be annular, thereby making it possible to simply arrange the magnetizer and achieve good and uniform heating of the liquid feed.

[0011] In some embodiments, the magnetizer includes a plurality of magnetizer segments, which together partially or completely surround the tank body along the circumferential direction of the tank body. This can facilitate the arrangement of the magnetizer and achieve good and uniform heating of the liquid feed, and can expand or reduce the range of the induced magnetic field area formed by the magnetizer as needed to adapt to tanks of different specifications.

[0012] In some embodiments, the plurality of magnetic conductor segments are equidistantly spaced from each other along the circumferential direction of the tank body, thereby improving the distribution and quality uniformity of the magnetic conductors and improving the uniformity of the distribution of the magnetic field induced by the magnetic conductors.

[0013] In some embodiments, the coil is made of copper, thereby making it possible to realize the electromagnetic heating device at low cost.

[0014] In some embodiments, the coil is constructed as a hollow tube, and circulating cooling water can be introduced into the hollow tube, thereby preventing the coil from overheating, thereby facilitating improving the heat dissipation level and reducing the temperature of the electromagnetic heating device.

[0015] In some embodiments, the feed liquid temperature sensor is arranged on the inner wall of the tank body, or arranged on the bottom of the tank body, or arranged on the inner wall of the tank body at the bottom of the tank body, which is conducive to the detection of the feed liquid temperature.

[0016] In some embodiments, the material tank further comprises a liquid level detection sensor arranged on the inner wall for detecting the liquid level of the material liquid, and the liquid level detection sensor can be connected to the control device for communication, thereby improving the safety of the material tank.

[0017] In some embodiments, the material tank further comprises a current detection device for detecting whether there is current passing through the tank body, and the current detection device can be connected to the control device for communication, thereby improving the safety of the material tank.

[0018] In some embodiments, the material tank further comprises a smoke detection sensor and an insulating flame retardant placement box arranged between the inner wall of the tank body and the outer wall of the tank body, and the smoke detection sensor can be communicatively connected with the control device, thereby improving the safety of the material tank.

[0019] In some embodiments, the material tank further comprises a return pipe that can be connected to the return port on the tank body and / or a discharge pipe that can be connected to the discharge port on the tank body, thereby realizing return and discharge.

[0020] In some embodiments, the material tank further comprises rock wool felt wrapping the tank body, thereby reducing the loss of material liquid temperature in the material tank, thereby improving the thermal insulation effect of the material tank.

[0021] In some embodiments, the material tank further comprises a tank body support leg and / or a tank body bracket for supporting the tank body, thereby facilitating the movement and transportation of the material tank.

[0022] In some embodiments, the material tank further comprises an observation window and / or a vent pipe and / or a stirrer and / or an RFID identification device located on the tank body, thereby realizing corresponding additional functions.

[0023] In some embodiments, the material tank further comprises a control box capable of communicating with the control device, and the control box comprises a control panel, control buttons and / or a display screen, thereby making it convenient for an operator to control the material tank.

[0024] In some embodiments, the control device is the control device of the material tank itself or is integrated into the control system of the tobacco feeding system, so that the control device can be realized simply and at low cost as required.

[0025] In a second aspect, a tobacco feeding system is provided according to the present disclosure, which comprises a feeder and the material tank according to the present disclosure as described above. The tobacco feeding system according to the present disclosure may have the same advantages as the material tank according to the present disclosure, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only used for the purpose of illustrating preferred embodiments and are not considered to be limitations of the present disclosure. Moreover, in all the drawings, the same reference numerals are used to represent the same components. Some drawings may not be shown to scale, and may even be exaggerated, and are only used for illustrative purposes. In the drawings:

[0027] Figure 1 This is an axonometric view of a material tank for a tobacco feeding system according to an embodiment of the present application;

[0028] Figure 2 for Figure 1 A front view of a material tank for a tobacco feeding system;

[0029] Figure 3 For along Figure 2 A transverse cross-sectional view of a material tank for a tobacco feeding system taken along line GG in FIG.

[0030] Figure 4 Schematic diagram of an electromagnetic heating device according to an embodiment of the present application.

[0031] Figure 5 For along Figure 2 A vertical cross-sectional view of a material tank for a tobacco feeding system taken along line AA in FIG. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0038] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0039] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0040] As mentioned above, in the tobacco feeding system, the existing commonly used material tank is usually a material tank without heating and temperature control.

[0041] Therefore, the present disclosure designs a material tank with a material liquid heating device and its control and / or regulation measures to control and / or regulate the temperature of the material liquid in the material tank. In addition, the present disclosure also designs a series of protection mechanisms to improve the safety of the material tank.

[0042] For the convenience of explanation, a material tank 10 for a tobacco feeding system according to an embodiment of the present disclosure is taken as an example for explanation below.

[0043] Reference Figures 1 to 5 , which respectively show a schematic diagram of an embodiment of a material tank 10 for a tobacco feeding system according to the present disclosure and a schematic diagram of an embodiment of an electromagnetic heating device 200 for the material tank 10.

[0044] The material tank 10 for the tobacco feeding system according to the embodiment of the present disclosure can be installed in the tobacco feeding system. In this regard, the material tank 10 can be connected to the feeder, for example, through a connecting pipeline, a feeding pump, and a nozzle valve.

[0045] Especially referring to Figure 3 According to an embodiment of the present disclosure, the material tank 10 for the tobacco feeding system may include a tank body 100 having an outer wall 110 and an inner wall 120. An electromagnetic heating device 200 may be arranged between the outer wall 110 and the inner wall 120 of the tank body 100. In addition, a liquid temperature sensor 300 for detecting the temperature of the liquid in the material tank 10 may be provided. The liquid temperature sensor 300 may be advantageously configured as a high-precision, high-stability temperature sensor, so that it may have the characteristics of high precision and high sensitivity.

[0046] The electromagnetic heating device 200 and the liquid temperature sensor 300 can both be connected to the control device for communication. Therefore, the liquid temperature sensor 300 can feed back the detected liquid temperature to the control device, especially in real time, and the control device can adjust the output power of the electromagnetic heating device 200 according to the received real-time temperature. Thus, the control device can control the electromagnetic heating device 200 based on the measurement of the liquid temperature sensor 300.

[0047] Here, the control device may be implemented as any type of computing device, computing circuit or any type of processor or processing circuit capable of executing a sequence of instructions stored in a memory, in particular a PLC. The control device may include multiple processors and / or a multi-core central processing unit (CPU) and may include any type of processor, such as a microprocessor, a digital signal processor, a microcontroller, etc. The control device may also include a memory to store data and / or algorithms to execute a sequence of instructions. The control device may also be implemented as a computer program product or a software product.

[0048] Therefore, by providing an electromagnetic heating device 200, a liquid temperature sensor 300 and a control device, closed-loop temperature control and / or regulation of the temperature of the liquid in the material tank 10 can be achieved, thereby effectively improving the heating efficiency and temperature control accuracy and ensuring that a constant temperature control effect is achieved during the liquid feeding process.

[0049] According to some embodiments of the present disclosure, in particular, referring to Figure 4 The electromagnetic heating device 200 may include a magnetic conductor 210 surrounding the tank body 100 and a coil 220 wound on the magnetic conductor 210. The coil 220 can be electrically connected to a power supply device 230 (such as a fast power supply) and can thus be powered by the power supply device 230. The coil 220 can be wound around the outer side of the magnetic conductor 210 to form a multi-turn coil structure.

[0050] When the coil 220 is powered, the magnetizer 210 may generate a corresponding induced magnetic field. If the coil 220 is supplied with a high-frequency alternating current, the magnetizer 210 may form a corresponding high-frequency alternating magnetic field.

[0051] Since the inner wall 120 of the tank 10 is located in the induced magnetic field area formed by the magnetizer 210. Therefore, when the coil 220 is supplied with an alternating current, for example, the magnetizer 210 can form an alternating magnetic field; under the action of the alternating magnetic field, eddy currents can be generated on the surface of the inner wall 120 of the tank 10, and the Joule heat effect can cause the inner wall 120 of the tank 10 to heat itself, thereby heating the liquid in the tank 10. Therefore, electromagnetic induction heating can be used to heat the inner wall 120 of the tank 10, thereby heating the liquid in the tank 10. Therefore, compared with the traditional heat conduction heating method, this can improve the heating efficiency and shorten the heating time.

[0052] In addition, in this case, the control device may be connected to the power supply device 230 for the coil 220 in communication so as to control the current parameters of the power supply device 230. For example, the magnitude of the current flowing into the coil 220 may be controlled by the control device. When the temperature of the liquid is detected to be high, the magnitude of the current provided by the power supply device 230 may be reduced by the control device to weaken the heating effect of the electromagnetic heating device 200, and when the temperature of the liquid is detected to be low, the magnitude of the current provided by the power supply device 230 may be increased by the control device to improve the heating effect of the electromagnetic heating device 200. In other words, when it is necessary to strengthen the heating effect of the electromagnetic heating device 200, the magnitude of the current flowing into the coil 220 may be appropriately increased, and when it is necessary to weaken the heating effect of the electromagnetic heating device 200, the magnitude of the current flowing into the coil 220 may be appropriately reduced. Therefore, by controlling the magnitude of the current flowing into the coil 220 by the control device, the output power of the electromagnetic heating device 200 can be controlled and / or adjusted, so that the electromagnetic heating device 200 can meet the heating requirements of different heated objects, thereby facilitating the improvement of the application range of the electromagnetic heating device 200.

[0053] In addition, when the feed liquid is heated to a preset temperature, the current can be slightly adjusted by the feed liquid temperature sensor 300 in combination with the control device to control the temperature near the preset temperature, thereby achieving constant temperature control of the feed liquid in the feed tank 10. For example, the following control formula can be used: ΔI=CmΔT / t, where: ΔI is the current change value, C is the specific heat capacity of the feed liquid, m is the mass of the feed liquid, ΔT is the temperature change value of the feed liquid, and t is time.

[0054] Therefore, in this way, not only the output power of the electromagnetic heating device 200 is quickly adjusted according to the real-time temperature, but also the response speed and accuracy of the current regulation of the electromagnetic heating device 200 are improved.

[0055] According to some embodiments of the present disclosure, in particular, referring to Figures 3 to 5 The magnetizer 210 may partially or completely surround the tank body 100 along the circumferential direction of the tank body 100 and / or the magnetizer 210 may be configured as an annular shape. Thus, the magnetizer may be simply arranged and good and uniform heating of the liquid feed may be achieved.

[0056] According to some embodiments of the present disclosure, the magnetizer 210 may include a plurality of magnetizer segments, which may together partially or completely surround the tank body 100 along the circumferential direction of the tank body 100. In particular, the magnetizer 210 may include two magnetizer segments surrounding the tank body 100, which are opposite to each other and spaced apart. This can facilitate the arrangement of the magnetizer and achieve good and uniform heating of the liquid feed. In addition, the range of the induced magnetic field area formed by the magnetizer can be expanded or reduced as needed to adapt to tanks of different specifications.

[0057] According to some embodiments of the present disclosure, the plurality of magnetic conductor segments may be equally spaced from each other along the circumferential direction of the tank body 100. This can improve the distribution and quality uniformity of the magnetic conductors, and can improve the uniformity of the distribution of the magnetic field induced by the magnetic conductors, which is conducive to improving the uniform distribution of heat during the heating process of the liquid feed.

[0058] According to some embodiments of the present disclosure, the coil 220 may be made of copper, thereby enabling the electromagnetic heating device 200 to be realized at a low cost.

[0059] According to some embodiments of the present disclosure, the coil 220 may be configured as a hollow tube, in particular a hollow copper tube, in which circulating cooling water may be introduced, thereby lowering the temperature of the hollow tube and preventing the coil 220 from overheating, thereby facilitating improving the heat dissipation level and lowering the temperature of the electromagnetic heating device 200.

[0060] According to some embodiments of the present disclosure, in particular, referring to Figure 3 The liquid temperature sensor 300 may be arranged on the inner wall 120 of the tank body 100, or on the bottom of the tank body 100, or on the inner wall 120 of the tank body 100 at the bottom of the tank body 100. This is beneficial to the detection of the liquid temperature.

[0061] According to some embodiments of the present disclosure, in particular, referring to Figure 3 The material tank 10 may further include a liquid level detection sensor 400 arranged on the inner wall 120 for detecting the liquid level of the material liquid in the tank body 100. The liquid level detection sensor may be connected to the control device for communication. When the liquid level of the material liquid is higher than the set value, the control device may allow the electromagnetic heating device 200 to heat the material liquid.

[0062] According to some embodiments of the present disclosure, the material tank 10 may further include a current detection device for detecting whether there is current passing through the tank body. The current detection device may be connected to the control device for communication. When the current detection device detects that there is current passing through the tank body, the control device may immediately cut off the power supply to prevent electric shock.

[0063] According to some embodiments of the present disclosure, in particular, referring to Figure 5 The material tank 10 may further include a smoke detection sensor and an insulating flame retardant placement box 500 disposed between the inner wall 120 of the tank body 100 and the outer wall 110 of the tank body 100. The smoke detection sensor may be communicatively connected with the control device.

[0064] The smoke detection sensor can be used to detect whether there is smoke. When the coil 220 burns due to aging or damage, for example, the smoke detection sensor can detect the smoke. In this case, the control device can control the insulating flame retardant in the insulating flame retardant placement box 500 to discharge, so as to perform flame retardant and fire extinguishing on the tank body 100. This can effectively prevent combustion, thereby improving safety.

[0065] According to some embodiments of the present disclosure, in particular, referring to Figure 1 and Figure 2 The material tank 10 may further include a return pipe 20 that can be connected to the return port on the tank body 100 and / or a discharge pipe 30 that can be connected to the discharge port on the tank body 100. Thus, return and discharge can be achieved.

[0066] According to some embodiments of the present disclosure, in particular, referring to Figure 1 The material tank 10 may further include a rock wool felt 130 as a heat-insulating jacket layer that wraps the tank body 100. The rock wool felt 130 may be wrapped around the outer wall of the tank body 100 and the upper and lower surfaces of the tank body 100 for heat preservation. This may reduce the loss of the temperature of the liquid in the material tank, thereby improving the heat-insulating effect of the material tank.

[0067] According to some embodiments of the present disclosure, in particular, referring to Figure 1 The material tank 10 may further include a tank leg 40 and / or a tank support 50 for supporting the tank body 100. Advantageously, the tank leg 40 and the tank support 50 may jointly support the tank body 100. This facilitates the movement and transportation of the material tank 100.

[0068] According to some embodiments of the present disclosure, in particular, referring to Figure 1 The material tank 10 may further include an observation window 60 and / or a vent pipe 70 and / or an agitator 80 and / or an RFID identification device 90 located on the tank body to achieve corresponding additional functions.

[0069] According to some embodiments of the present disclosure, in particular, referring to Figure 1 and Figure 2 The material tank 10 may also include a control box 600 that can be connected to the control device for communication. The control box 600 may include a control panel 610, control buttons 620) and / or a display screen 630. This makes it convenient for operators to control the material tank 10.

[0070] According to some embodiments of the present disclosure, the control device may be a control device of the material tank 10 itself or may be integrated into a control system of the tobacco feeding system. Thus, the control device may be realized simply and at low cost as required.

[0071] On the other hand, an embodiment of the present disclosure further provides a tobacco cutting feeding system, which may include a feeder and the material tank 10 as described above.

[0072] In the material tank and tobacco feeding system according to the embodiment of the present disclosure, an electromagnetic heating device that may include a magnetizer and a wound electromagnetic coil is provided. When the electromagnetic coil is connected to an alternating current, an alternating magnetic field can be formed in the magnetizer, and the inner wall of the tank body is heated as a whole due to the generation of eddy currents. This heating method heats the inner wall evenly, and the heating efficiency is high, thereby saving time costs. In addition, by providing a liquid temperature sensor and a control device, the temperature of the liquid in the material tank can be controlled, thereby effectively improving the heating efficiency and temperature control accuracy, so as to ensure that the effect of constant temperature control is achieved during the liquid feeding process. Therefore, the material tank and tobacco feeding system according to the embodiment of the present disclosure implement a temperature control system, which can control the output power of the electromagnetic heating device according to the temperature of the liquid to achieve temperature control.

[0073] In addition, the material tank and the tobacco feeding system according to the embodiment of the present disclosure are equipped with a protection mechanism, which includes, for example, a liquid level detection sensor, a current detection device, a smoke detection sensor, and an insulating flame retardant placement box, thereby improving safety and practicality and avoiding unnecessary economic losses.

[0074] The features disclosed in this application document may be important and may be implemented for the implementation of the embodiments in different design solutions not only individually but also in any combination. The present disclosure is not limited to the embodiments shown, but includes or extends to all technical equivalents that may fall within the effective scope of the attached claims.

Claims

1. A material tank (10) for a tobacco feeding system, the material tank (10) comprising a tank body (100) having an outer wall (110) and an inner wall (120), characterized in that: The tank body (100) comprises an electromagnetic heating device (200) arranged between an outer wall (110) and an inner wall (120), and a liquid temperature sensor (300) for detecting the temperature of liquid in the tank (10). The electromagnetic heating device (200) and the liquid temperature sensor (300) can be communicatively connected to a control device, and the control device can control the electromagnetic heating device (200) based on the measurement of the liquid temperature sensor (300).

2. The material tank (10) according to claim 1, characterized in that: The electromagnetic heating device (200) comprises a magnetic conductor (210) surrounding the tank body (100) and a coil (220) wound around the magnetic conductor (210); the coil (220) can be electrically connected to a power supply device (230) and can therefore be powered by the power supply device (230).

3. The material tank (10) according to claim 2, characterized in that: The magnet conductor (210) partially or completely surrounds the tank body (100) along the circumferential direction of the tank body (100) and / or the magnet conductor (210) is constructed in an annular shape.

4. The material tank (10) according to claim 2, characterized in that: The magnetic conductor (210) comprises a plurality of magnetic conductor segments, and the plurality of magnetic conductor segments together partially or completely surround the tank body (100) along the circumferential direction of the tank body (100).

5. The material tank (10) according to claim 4, characterized in that: The plurality of magnetic conductive segments are equidistantly spaced from each other along the circumferential direction of the tank body (100).

6. The material tank (10) according to claim 2, characterized in that: The coil (220) is made of copper.

7. The material tank (10) according to claim 2 or 6, characterized in that: The coil (220) is designed as a hollow tube, in which cooling water can be circulated.

8. The material tank (10) according to claim 1, characterized in that: The liquid temperature sensor (300) is arranged on the inner wall (120) of the tank body (100), or on the bottom of the tank body (100), or on the inner wall (120) of the tank body (100) at the bottom of the tank body (100).

9. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a liquid level detection sensor (400) arranged on the inner wall (120) for detecting the liquid level of the material liquid, and the liquid level detection sensor (400) can be communicatively connected with the control device.

10. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a current detection device for detecting whether there is current passing through the tank body, and the current detection device can be communicatively connected with the control device.

11. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a smoke detection sensor and an insulating flame retardant placement box (500) arranged between an inner wall (120) of the tank body (100) and an outer wall (110) of the tank body (100), and the smoke detection sensor can be communicatively connected with the control device.

12. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a return pipe (20) that can be connected to a return port on the tank body (100) and / or a discharge pipe (30) that can be connected to a discharge port on the tank body (100).

13. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a rock wool felt (130) that wraps the tank body (100).

14. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a tank body support leg (40) and / or a tank body bracket (50) for supporting the tank body (100).

15. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises an observation window (60) and / or a vent pipe (70) and / or an agitator (80) and / or an RFID identification device (90) located on the tank body (100).

16. The material tank (10) according to claim 1, characterized in that: The material tank (10) further comprises a control box (600) capable of being communicatively connected with the control device, and the control box (600) comprises a control panel (610), control buttons (620) and / or a display screen (630).

17. The material tank (10) according to claim 1, characterized in that: The control device is a control device of the material tank (10) itself or is integrated into a control system of a tobacco feeding system.

18. A tobacco feeding system, characterized in that: The tobacco feeding system comprises a feeder and a material tank (10) according to any one of claims 1 to 17.

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