Electromagnetic Reactor

Abstract

The electromagnetic reactor disclosed in the present invention comprises a reactor body, a head, a main shaft, a feed port, a discharge port, an electromagnetic stirrer and a spiral belt; the electromagnetic stirrer is arranged outside the reactor body, and the spiral belt is arranged outside the reactor body and is arranged around the main shaft; the spiral belt moves under the action of electromagnetic force to realize the stirring of materials in the reactor body, so that the materials are fully mixed; at the same time, an induced current is generated in the spiral belt, and the eddy current heat generated by the induced current heats the materials, and the heat does not need to be transferred from the outside of the reactor body to the inside of the reactor body, so the heating efficiency is higher. The main shaft is a hollow structure, and a heater is arranged in the hollow structure of the main shaft; on the one hand, the heater and the eddy current heat form two heating sources inside and outside the reactor, which improves the heating efficiency and heating temperature of the materials and ensures the heating effect; on the other hand, under the stirring action of the spiral belt, the materials are in continuous contact with the main shaft, so that the heat transfer of the main shaft to the materials is realized, which solves the problems of low center temperature of the reactor body, slow heating and low heating efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of reactors, and in particular relates to an electromagnetic reactor. Background Art

[0002] Lithium battery is the most popular rechargeable battery at present. Ideal lithium battery has the characteristics of long life, small size, light weight, high energy density, safety, environmental compatibility, low cost, etc. The most core link in the process of manufacturing high-end negative electrode materials for lithium batteries is the coating and granulation process of graphite. The conventional coating and granulation method is to simply mix the coating agent or binder with the material, but the coating and granulation process of graphite has requirements for product particle size and coating uniformity, otherwise it is difficult to meet the market's stringent requirements for negative electrode materials, especially in the field of automotive power negative electrode materials, which require long cycle, high rate, high energy density, etc. The production process of the negative electrode has a great influence on product performance. At the same time, the coating and granulation materials used in lithium battery negative electrode materials include powder and asphalt coke, etc., which are very difficult to mix and have strong flow resistance. Therefore, the mixing and heating effect of materials in the production process of negative electrode materials has become one of the most important factors determining product quality.

[0003] The most commonly used graphite granulation coating equipment is the reactor, which is generally understood as a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process can be achieved.

[0004] Although there are many types of graphite reactors on the market, there are still some obvious problems:

[0005] 1. The contact area between the stirring slurry belt or the spiral belt and the material is limited, resulting in insufficient mixing effect and uniformity of the materials and insufficient heat exchange. For example, the Chinese patent document with the authorization announcement number CN106000268B and the name is a high-temperature reactor for manufacturing negative electrode materials for lithium-ion batteries.

[0006] 2. The existing reactor has low heat transfer efficiency. Heating devices such as heating wires are installed outside the reactor, and the reactor body is heated by heating wires and other heating devices, and then the reactor body is used to transfer heat to the material inside to achieve heating. The reactor body cannot be heated quickly, and the heating efficiency is low. At the same time, long preheating will greatly waste resources and increase the cost of use. For example, the Chinese patent document with application publication number CN108854925A, entitled "A multi-stage detachable electric heating furnace for matching coated granulation reactor", and the authorization announcement number CN209438612U, entitled "A graphite reactor that can quickly improve heat transfer efficiency".

[0007] 3. During the reaction process, the viscosity of the materials and the adhesion between the materials are relatively large. Dead corners are prone to appear at the bottom of the conical kettle, and the materials are prone to block the discharge port, which greatly affects the heating effect, production efficiency and product quality.

[0008] 4. At present, the production process of negative electrode materials encounters the problem of material sublimation or evaporation, which leads to blockage of the manhole and flange hole on the head of the kettle body. This problem has also become a bottleneck in the development of the industry. Summary of the invention

[0009] The purpose of the present invention is to provide an electromagnetic reactor to solve the problems of poor mixing effect and low heating efficiency of materials in the reactor. The present invention is provided with an electromagnetic stirrer outside the reactor body, and a spiral ribbon made of a conductive material is provided inside the reactor body. The spiral ribbon moves under the action of electromagnetic force to stir the materials in the reactor body and fully mix the materials. At the same time, an induced current is generated in the spiral ribbon, and the eddy current heat generated by the induced current heats the materials. The heat does not need to be transferred from the outside of the reactor body to the inside of the reactor body, and the heating efficiency is higher.

[0010] The present invention solves the above technical problems through the following technical solutions: an electromagnetic reactor, comprising a reactor body, a head provided on the top of the reactor body, a main shaft penetrating the inside of the reactor body and extending to the outside of the reactor body at both ends, a feed port provided on the head, and a discharge port provided at the bottom of the reactor body;

[0011] The reaction kettle further comprises an electromagnetic stirrer and a spiral ribbon; the electromagnetic stirrer is arranged outside the kettle body, and the spiral ribbon is located in the kettle body and is arranged around the main shaft.

[0012] Furthermore, the kettle body and the main shaft are both made of conductive materials.

[0013] Furthermore, the main shaft is a hollow structure, and a heater is provided in the hollow structure of the main shaft.

[0014] Preferably, the heater is an induction heater, and there are multiple induction heaters, which are arranged along the length direction of the main axis.

[0015] Preferably, the induction coil of the induction heater is wound from a hollow copper tube.

[0016] Furthermore, the spiral belt is spirally wound around the rotating mechanism, and the rotating mechanism is sleeved on the main shaft.

[0017] Furthermore, the rotating mechanism includes a plurality of movable rings and connecting rods; the plurality of movable rings are sleeved on the main shaft and connected by connecting rods; a lower limit ring is fixedly provided in the kettle body and at the lower part of the main shaft; the rotating mechanism is placed on the lower limit ring.

[0018] Furthermore, reinforcing rods are provided on multiple movable rings, and first scraping belts for cleaning condensed materials on the inner wall of the kettle body are provided on both sides of some of the reinforcing rods. A second scraping belt with the same curvature as the head and used to clean condensed materials on the inner wall of the head is provided on the uppermost reinforcing rod, and a scraper is provided on the lowermost reinforcing rod; the screw belt is also fixed on the reinforcing rod.

[0019] Preferably, an upper limit ring is fixedly provided in the kettle body and on the upper part of the main shaft.

[0020] Furthermore, the spiral ribbon includes a first side spiral ribbon, a second side spiral ribbon and a central spiral ribbon; the first side spiral ribbon and the second side spiral ribbon are alternately arranged left and right and in the same direction; the central spiral ribbon is located between the first side spiral ribbon and the second side spiral ribbon, and the central spiral ribbon is arranged in the opposite direction to the first side spiral ribbon and the second side spiral ribbon; the same direction means that the first side spiral ribbon and the second side spiral ribbon are both spirally ascending or spirally descending, and the opposite direction means that the central spiral ribbon is spirally descending or spirally ascending.

[0021] Furthermore, for a reaction kettle with a conical bottom, the first side spiral belt and the second side spiral belt penetrate the straight cylindrical part and the conical part of the kettle, and the central spiral belt penetrates the straight cylindrical part of the kettle.

[0022] Preferably, the first side spiral belt, the second side spiral belt and the central spiral belt all adopt a wide-surface inner opening design.

[0023] Furthermore, the electromagnetic stirrer is composed of a plurality of electromagnetic stirring modules forming a ring structure, and each of the electromagnetic stirring modules is composed of an iron core and a coil.

[0024] Furthermore, an exhaust valve is provided on the sealing head.

[0025] Beneficial Effects

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] An electromagnetic reactor provided by the present invention intelligently controls the size of the electromagnetic force by changing the frequency and current of the electromagnetic stirrer to achieve strong and weak stirring of the spiral ribbon and stirring at different rotation speeds. The spiral ribbon rotates under the action of the electromagnetic force to make the material in the reactor body more fully and evenly stirred, thereby improving the material mixing effect and uniformity. At the same time, the induced current in the spiral ribbon generates eddy current heat, which directly heats the material without being transferred from outside the reactor body to inside the reactor body. There is no heat transfer process, thereby improving the heating efficiency. The movement of the spiral ribbon causes the eddy current heat to move in the material, further improving the heating efficiency.

[0028] A heater is added inside the main shaft, and the eddy current heat of the spiral belt, main shaft and kettle body greatly improves the heating efficiency and heating temperature. There are two heating sources inside and outside the reactor to fully heat the material. The first scraper and the second scraper avoid the deposition of materials on the inner wall and head of the kettle body, preventing condensed materials from clogging the head. The scraper design of the discharge port prevents the material from clogging the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic structural diagram of an electromagnetic reactor in an embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the main shaft structure in an embodiment of the present invention;

[0032] Figure 3 is a diagram showing the position of the heater in the spindle in an embodiment of the present invention;

[0033] Figure 4 is a schematic diagram of a single heater in an embodiment of the present invention;

[0034] Figure 5 is a longitudinal cross-sectional view of an induction heater according to an embodiment of the present invention;

[0035] Figure 6 is a schematic diagram of a spiral belt being installed on a main shaft through a rotating mechanism in an embodiment of the present invention;

[0036] Figure 7 Schematic diagram of the spiral ribbon structure in an embodiment of the present invention;

[0037] Figure 8 is a three-dimensional structural diagram of an electromagnetic stirrer in an embodiment of the present invention;

[0038] Fig. 9 is a cross-sectional view of an electromagnetic stirrer in an embodiment of the present invention;

[0039] Fig.10 2 is a longitudinal sectional view of an electromagnetic stirrer in an embodiment of the present invention.

[0040] Among them, 1-main shaft, 11-upper limit ring, 12-lower limit ring, 13-upper clamping ring, 14-lower clamping ring, 2-exhaust valve, 3-head, 4-kettle body, 5-electromagnetic stirrer, 51-electromagnetic stirring module, 511-iron core, 512-coil, 513-insulating asbestos, 52-bolt, 6-discharge port, 7-feed port, 8-screw belt, 81-first side screw belt, 82-second side screw belt, 83-center screw belt, 9-heater, 91-induction coil, 92-refractory material, 10-rotating mechanism, 101-movable ring, 102-connecting rod, 103-reinforcement support rod, 104-first scraping belt, 105-second scraping belt, 106-scraper. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solution in the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0043] like Figure 1 As shown, an electromagnetic reactor provided by an embodiment of the present invention includes a reactor body 4, a head 3 arranged on the top of the reactor body 4, a main shaft 1 that passes through the inside of the reactor body 4 and extends to the outside of the reactor body 4 at both ends, a feed port 7 arranged on the head 3, a discharge port 6 arranged at the bottom of the reactor body 4, an electromagnetic stirrer 5 and a screw belt 8; the electromagnetic stirrer 5 is arranged outside the reactor body 4, and the screw belt 8 is located in the reactor body 4 and is arranged around the main shaft 1.

[0044] When the electromagnetic stirrer 5 is powered on, an alternating magnetic field is generated in the electromagnetic stirrer 5, the alternating magnetic field cuts the spiral ribbon 8, and an induced current is generated in the spiral ribbon 8. The induced current interacts with the alternating magnetic field to generate an electromagnetic force. The spiral ribbon 8 moves under the action of the electromagnetic force to achieve the stirring of the material in the kettle body 4, so that the material is fully mixed and stirred evenly, and the material mixing effect and uniformity are improved; when the material is a conductive material, the electromagnetic force can also drive the material to move, further improving the material mixing effect; at the same time, the induced current in the spiral ribbon 8 generates eddy current heat, which directly heats the material without being transferred from the outside of the kettle body 4 to the inside of the kettle body 4, without a heat transfer process, and improving the heating efficiency. The movement of the spiral ribbon 8 causes the eddy current heat to move in the material, further improving the heating efficiency. The present invention adjusts the alternating magnetic field intensity and the induced current size by changing the power-on frequency and current size of the electromagnetic stirrer 5, thereby adjusting the electromagnetic force and the eddy current heat size, and realizing the adjustment of the stirring speed and heating temperature of the material in the kettle body 4, and realizing the strong and weak stirring of the spiral ribbon 8 and the stirring at different speeds.

[0045] In a specific embodiment of the present invention, the kettle body 4 and the main shaft 1 are both made of conductive materials. Exemplarily, the spiral belt 8, the main shaft 1 and the kettle body 4 are all made of high-temperature resistant stainless steel. Under the alternating magnetic field of the electromagnetic stirrer 5, an induced current is generated in the kettle body 4 and the main shaft 1 made of conductive materials, and then eddy current heat is generated in the kettle body 4 and the main shaft 1. The eddy current heat directly heats the material, further improving the heating efficiency and heating temperature. The main shaft 1 runs through the inside of the kettle body 4, and the eddy current heat of the main shaft 1 solves the problem of slow heating and low heating efficiency in the center of the kettle body 4.

[0046] In a specific embodiment of the present invention, Figure 2 As shown, the main shaft 1 is a hollow structure, and the main shaft 1 is fixed to the kettle body 4 through an upper clamping ring 13 and a lower clamping ring 14. Figure 3 As shown, a heater 9 is provided in the hollow structure of the main shaft 1. On the one hand, the heater 9 in the main shaft 1 and the eddy current heat form two heating sources inside and outside the reactor, thereby improving the heating efficiency and heating temperature of the material and ensuring the heating effect. On the other hand, under the stirring action of the spiral ribbon 8, the material is in continuous contact with the main shaft 1, realizing the heat transfer of the main shaft 1 to the material, thus solving the problems of low center temperature of the reactor body 4, slow heating and low heating efficiency.

[0047] In a specific embodiment of the present invention, Figure 4 As shown, the heater 9 in the spindle 1 is an induction heater, and there are multiple induction heaters, which are arranged along the length direction of the spindle 1, as shown in FIG. Figure 2 as shown; Figure 5As shown, each induction heater is provided with a refractory material 92, and the induction coil 91 of the induction heater is wound into a ring shape by a hollow copper tube and placed in the main shaft 1, and each induction heater can be universal and interchangeable. When the induction coil 91 of the induction heater is passed through an alternating current to generate an electromagnetic field, the main shaft 1 and the spiral belt 8 are rapidly heated and the temperature is transferred to the material, with high heat transfer efficiency and good heating effect.

[0048] In a specific embodiment of the present invention, Figure 6 As shown, the spiral ribbon 8 is spirally wound around the rotating mechanism 10, and the rotating mechanism 10 is sleeved on the main shaft 1. The spiral ribbon 8 moves under the action of electromagnetic force, and the movement of the spiral ribbon 8 drives the rotating mechanism 10 to rotate around the main shaft 1, and then the spiral ribbon 8 rotates around the main shaft 1, which increases the movement amplitude of the spiral ribbon 8, increases the stirring amplitude of the material, and thus improves the mixing effect of the material.

[0049] In a specific embodiment of the present invention, Figure 6 As shown, the rotating mechanism 10 includes a plurality of movable rings 101 and connecting rods 102; the plurality of movable rings 101 are sleeved on the main shaft 1 and connected by connecting rods 102; a lower limit ring 12 is fixedly provided in the kettle body 4 and at the lower part of the main shaft 1; the rotating mechanism 10 is placed on the lower limit ring 12, and the lower limit ring 12 limits the downward movement position of the rotating mechanism 10.

[0050] In a specific embodiment of the present invention, Figure 6 As shown, reinforcing rods 103 are provided on multiple movable rings 101, and the length of the reinforcing rods 103 is adapted to the cross-sectional radius of the cross section of the kettle body 4 where the reinforcing rods 103 are located. A first scraper 104 for cleaning the condensed material on the inner wall of the kettle body 4 is provided on both sides of some of the reinforcing rods 103 (for example, on both sides of the reinforcing rods 103 in the straight cylindrical part of the kettle body 4), a second scraper 105 with the same curvature as the head 3 and used for cleaning the condensed material on the inner wall of the head 3 is provided on the uppermost reinforcing rod 103, and a scraper 106 is provided on the lowermost reinforcing rod 103; the screw belt 8 is also fixed on the reinforcing rod 103. Strengthening the support rod 103 increases the stability of the spiral belt 8; under the action of electromagnetic force, the spiral belt 8 and the rotating mechanism 10 all rotate, and the first scraper belt 104, the second scraper belt 105 and the scraper 106 all rotate. The first scraper belt 104 and the second scraper belt 105 clean the condensed materials at any time to prevent the materials from condensing on the kettle body 4 and the head 3, and prevent the materials from blocking the manhole and flange hole of the head 3; for the reactor with a conical bottom, in order to avoid the materials from sticking to each other during the reaction process, a dead angle appears at the bottom of the kettle body 4, and the material discharge port 6 is blocked, and the scraper 106 is designed, and the materials are stirred and crushed by the rotating movement of the scraper 106. The rotating mechanism 10 supports the entire spiral belt 8, the first scraper belt 104, the second scraper belt 105 and the scraper 106 to rotate under the action of the electromagnetic force generated by the electromagnetic stirrer 5.

[0051] In a specific embodiment of the present invention, Figure 6 As shown, an upper limit ring 11 is fixedly provided inside the kettle body 4 and on the upper part of the main shaft 1 , and the upper limit ring 11 limits the upward movement position of the rotating mechanism 10 .

[0052] In a specific embodiment of the present invention, Figure 7 As shown, the spiral belt 8 includes a first side spiral belt 81, a second side spiral belt 82 and a central spiral belt 83. The first side spiral belt 81 and the second side spiral belt 82 are arranged alternately on the left and right and in the same direction. The same direction means that the first side spiral belt 81 and the second side spiral belt 82 are both spirally ascending or spirally descending. In this embodiment, relative to the bottom of the kettle body 4, the first side spiral belt 81 and the second side spiral belt 82 are arranged in an ascending manner around the main axis 1. The central spiral belt 83 is located between the first side spiral belt 81 and the second side spiral belt 82, and the central spiral belt 83 is arranged in the opposite direction to the first side spiral belt 81 and the second side spiral belt 82. The opposite direction means that the central spiral belt is spirally descending or spirally ascending. In this embodiment, relative to the bottom of the kettle body 4, the central spiral belt 83 is arranged in a descending manner around the main axis 1.

[0053] The first side spiral belt 81 and the second side spiral belt 82 drive the material to be lifted, and the center spiral belt 83 drives the material to be pressed down. Since the material gravity needs to be overcome for lifting, two side spiral belts with ascending distribution are provided, and the downward pressure follows the direction of gravity, so a center spiral belt 83 with descending distribution is provided. The spiral belt 8 adopts a three-spiral 8 spiral design to ensure sufficient stirring and mixing of the material.

[0054] In a specific embodiment of the present invention, for a reactor with a conical bottom of the reactor body 4, the length of the central spiral belt 83 is less than the length of the first side spiral belt 81 and the second side spiral belt 82, that is, the first side spiral belt 81 and the second side spiral belt 82 pass through the straight cylinder part and the conical part of the reactor body 4, and the central spiral belt 83 passes through the straight cylinder part of the reactor body 4. Since the conical part has a small volume, the material is easy to gather in the conical part, so there is no need for downward pressure, so there is no need to set the central spiral belt 83 in the conical part.

[0055] In a specific embodiment of the present invention, Figure 7 As shown, the first side spiral belt 81, the second side spiral belt 82 and the center spiral belt 83 all adopt a wide surface inner opening design, which not only ensures sufficient contact area between the material and the spiral belt 8, but also ensures that the material does not accumulate on the spiral belt 8 and has a sufficient aperture for falling.

[0056] In a specific embodiment of the present invention, Figures 8 to 10As shown, the electromagnetic stirrer 5 adopts a modular design. The electromagnetic stirrer 5 is composed of 6 electromagnetic stirring modules 51 through bolts 52 to form a ring structure, and the kettle body 4 is located in the ring structure. Each electromagnetic stirring module 51 is composed of an iron core 511 and a coil 512. The coil 512 is wound with a hollow spiral tube. Cooling water is passed through the hollow part to achieve cooling of the coil. Insulating asbestos 513 is provided outside each electromagnetic stirring module 51.

[0057] In a specific embodiment of the present invention, an exhaust valve 2 is provided on the sealing head 3 .

[0058] What is disclosed above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or modifications within the technical scope disclosed in the present invention, which should be covered within the protection scope of the present invention.

Claims

1. An electromagnetic reactor, comprising a reactor body, a head provided on the top of the reactor body, a main shaft penetrating the inside of the reactor body and extending to the outside of the reactor body at both ends, a feed port provided on the head, and a discharge port provided at the bottom of the reactor body; characterized in that: The reactor further comprises an electromagnetic stirrer and a spiral ribbon; the electromagnetic stirrer is arranged outside the reactor body, the spiral ribbon is located inside the reactor body and is arranged around the main shaft; the electromagnetic stirrer is composed of a plurality of electromagnetic stirring modules forming an annular structure, and the reactor body is located inside the annular structure; When the electromagnetic stirrer is powered on, an alternating magnetic field is generated inside the electromagnetic stirrer, which cuts the spiral ribbon and generates an induced current inside the spiral ribbon. The induced current interacts with the alternating magnetic field to generate an electromagnetic force, and the spiral ribbon moves under the action of the electromagnetic force to achieve stirring of the material in the kettle. When the material in the kettle is a conductive material, the electromagnetic force drives the material to move. At the same time, the induced current in the spiral ribbon generates eddy current heat, which directly heats the material.

2. The electromagnetic reactor according to claim 1, characterized in that: The kettle body and the main shaft are both made of conductive materials.

3. The electromagnetic reactor according to claim 1, characterized in that: The main shaft is a hollow structure, and a heater is arranged in the hollow structure of the main shaft.

4. The electromagnetic reactor according to claim 3, characterized in that: The heater is an induction heater, and there are multiple induction heaters, which are arranged along the length direction of the main axis.

5. The electromagnetic reactor according to claim 4, characterized in that: The induction coil of the induction heater is wound by a hollow copper tube.

6. The electromagnetic reactor according to claim 1, characterized in that: The spiral belt is spirally wound around the rotating mechanism, and the rotating mechanism is sleeved on the main shaft.

7. The electromagnetic reactor according to claim 6, characterized in that: The rotating mechanism includes a plurality of movable rings and connecting rods; the plurality of movable rings are sleeved on the main shaft and connected by connecting rods; a lower limit ring is fixedly arranged in the kettle body and at the lower part of the main shaft; the rotating mechanism is placed on the lower limit ring.

8. The electromagnetic reactor according to claim 7, characterized in that: Reinforced support rods are provided on multiple movable rings, and first scraping belts for cleaning condensed materials on the inner wall of the kettle body are provided on both sides of some of the reinforced support rods. A second scraping belt with the same curvature as the head and used for cleaning condensed materials on the inner wall of the head is provided on the uppermost reinforced support rod, and a scraper is provided on the lowermost reinforced support rod; the screw belt is also fixed on the reinforced support rod.

9. The electromagnetic reactor according to claim 7, characterized in that: An upper limit ring is fixedly arranged in the kettle body and on the upper part of the main shaft.

10. The electromagnetic reactor according to claim 1, characterized in that: The spiral ribbon includes a first side spiral ribbon, a second side spiral ribbon and a central spiral ribbon; the first side spiral ribbon and the second side spiral ribbon are alternately arranged left and right and in the same direction; the central spiral ribbon is located between the first side spiral ribbon and the second side spiral ribbon, and the central spiral ribbon is arranged in the opposite direction to the first side spiral ribbon and the second side spiral ribbon; the same direction means that the first side spiral ribbon and the second side spiral ribbon are both spirally ascending or spirally descending, and the opposite direction means that the central spiral ribbon is spirally descending or spirally ascending.

11. The electromagnetic reactor according to claim 10, characterized in that: For a reaction kettle with a conical bottom, the first side spiral belt and the second side spiral belt penetrate the straight cylindrical part and the conical part of the kettle, and the central spiral belt penetrates the straight cylindrical part of the kettle.

12. The electromagnetic reactor according to claim 10, characterized in that: The first side spiral belt, the second side spiral belt and the central spiral belt all adopt a wide surface inner opening design.

13. The electromagnetic reactor according to claim 1, characterized in that: Each of the electromagnetic stirring modules is composed of an iron core and a coil.

14. The electromagnetic reactor according to any one of claims 1 to 13, characterized in that: An exhaust valve is arranged on the sealing head.

Images