A microwave-enhanced electromagnetic heating waste battery black powder roasting device

Abstract

The utility model relates to material roasting technical field, concretely relates to a kind of microwave intensification electromagnetic heating waste battery black powder roasting device, including furnace body, electromagnetic heating system, microwave heating system, material conveying system, temperature control system several cooperative units, microwave radiation heating can be selective activation to molecule, while reducing the activation energy of chemical reaction, reach the effect of promoting chemical bond rupture, electromagnetic induction heating technology has the advantages of high heating efficiency, fast heating speed, easy to control, the device can synergistically exert the advantages of microwave radiation heating and electromagnetic induction heating, realize the efficient, uniform, fast roasting of different types of waste battery black powder.

Description

Technical Field

[0001] This utility model relates to the field of material roasting technology, specifically to a microwave-enhanced electromagnetic heating device for roasting waste battery black powder. This device can synergistically leverage the advantages of microwave radiation heating and electromagnetic induction heating to achieve efficient, uniform, and rapid roasting of different types of waste battery black powder. Background Technology

[0002] Calcination is a common unit operation in industrial production, widely used in metallurgy, chemical engineering, and materials science. Its purpose is usually to alter the physicochemical properties of materials, such as removing volatiles, oxidation, reduction, and crystal transformation. Traditional calcination equipment often uses fuel combustion heating or resistance heating. These methods generally suffer from low thermal efficiency, uneven heating, slow temperature rise, high energy consumption, significant environmental pollution, and insufficient temperature control precision, making it difficult to meet the requirements of modern industry for efficient, energy-saving, environmentally friendly, and refined production.

[0003] Microwave radiation heating, as a novel heating method, possesses unique advantages such as selective heating, simultaneous internal and external heating, rapid heating speed, high thermal efficiency, and ease of control. Microwaves can directly interact with material molecules, converting electromagnetic energy into thermal energy, making it particularly suitable for heating polar molecules or materials with certain dielectric losses. Microwave radiation can selectively activate molecules while lowering the activation energy of chemical reactions, thereby promoting the breaking of chemical bonds. In waste battery black powder treated with microwave radiation, the leaching efficiency of target metals in water increases by 20%-30%, and the leaching time is shortened by more than 30%.

[0004] Electromagnetic induction heating technology has been applied in some roasting fields due to its advantages such as high heating efficiency, rapid heating rate, and ease of control. Electromagnetic induction heating directly generates heat by inducing eddy currents inside the heated body through an alternating electromagnetic field, and has the characteristic of relatively small heat loss.

[0005] Therefore, how to combine the advantages of microwave radiation heating and electromagnetic induction heating, overcome their respective limitations, and develop a roasting device that can adapt to material characteristics, improve subsequent leaching efficiency, shorten leaching time, have higher heating efficiency, more uniform temperature distribution, lower energy consumption, and more precise control has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] This utility model relates to the field of material roasting technology, specifically to a microwave-enhanced electromagnetic heating roasting device for waste battery black powder. The purpose of this utility model is to overcome the shortcomings of existing traditional roasting devices and provide a microwave-enhanced electromagnetic heating roasting device. This device can synergistically leverage the advantages of microwave radiation heating and electromagnetic induction heating to achieve efficient, uniform, and rapid roasting of different types of waste battery black powder, improve subsequent water leaching rate and energy utilization rate, reduce energy consumption, and enhance the controllability of the roasting process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A microwave-enhanced electromagnetic heating device for roasting waste battery black powder includes a furnace body, an electromagnetic heating system, a microwave heating system, a material conveying system, and a temperature control system.

[0008] Furthermore, the furnace body includes an outer shell, an insulation layer, an inner lining, a roasting chamber, a feed inlet, a discharge outlet, and an auxiliary material outlet. The inner lining forms the roasting chamber, and the insulation layer is disposed between the outer shell and the inner lining to reduce heat loss within the roasting chamber.

[0009] Furthermore, the microwave heating system includes a magnetron, an excitation cavity, and a microwave heating control cabinet. The magnetron generates microwave energy at a specific frequency; the excitation cavity transmits the microwave energy generated by the magnetron to the furnace body; the excitation cavity device is disposed on the furnace body and connected to the roasting cavity, and is used to uniformly and effectively feed microwave energy into the roasting cavity to heat the material by microwave radiation. Multiple microwave feeding devices can be provided, distributed along the circumference and / or axial direction of the roasting cavity to improve the uniformity of the microwave field within the roasting cavity.

[0010] Furthermore, the electromagnetic heating system includes an electromagnetic induction coil and an electromagnetic heater control cabinet. The induction coil is arranged around the outer periphery of the roasting chamber, located outside the inner lining structure layer, and electrically connected to the electromagnetic heater control cabinet. It is used to generate an alternating electromagnetic field within the roasting chamber, causing the material container to generate eddy current heating.

[0011] Furthermore, the material conveying system is used to continuously or intermittently feed the material to be roasted into the roasting chamber and output the roasted material from the roasting chamber. The two ends of the roasting chamber are respectively provided with a feed inlet, a discharge outlet, and an auxiliary material outlet, and are equipped with corresponding sealing devices.

[0012] Furthermore, the temperature control system includes multiple temperature sensors and a temperature controller. The temperature sensors are positioned at different locations within the roasting chamber to monitor the temperature field distribution and material temperature in real time. The temperature sensors are electrically connected to the temperature controller, which in turn is electrically connected to both the electromagnetic heating system and the microwave heating system. Based on the set roasting temperature curve and the feedback signals from the temperature sensors, the controller adjusts the output power of the electromagnetic heating system and the microwave heating system respectively, thereby achieving precise temperature control during the roasting process.

[0013] Furthermore, the temperature sensor can be a thermocouple or an infrared thermometer. For microwave environments, thermocouples or infrared temperature measurement methods with good microwave compatibility are preferred.

[0014] Furthermore, the furnace body may also be equipped with an observation window for observing the state of the materials inside the roasting chamber. The observation window is made of a high-temperature resistant, microwave-resistant, and transparent material.

[0015] The microwave-enhanced electromagnetic heating device for roasting waste battery black powder provided by this utility model can achieve the following beneficial effects: Synergistic effect: This invention organically combines microwave radiation heating and electromagnetic induction heating. The two methods can each exert their advantages or work synergistically depending on the material characteristics and the different roasting stages. For highly conductive or magnetic materials, electromagnetic induction heating can provide the main heat; for polar or high dielectric loss materials, microwave heating can play a highly efficient role; for materials whose physicochemical properties change during heating, the two heating methods can be dynamically adjusted to achieve overall efficient heating.

[0016] Good heating uniformity: By rationally arranging induction coils and multiple microwave radiation devices, and supplementing with spiral stirring measures, the temperature field distribution in the roasting chamber can be effectively improved, local overheating can be reduced, and the uniformity of material heating can be improved, thereby enhancing the consistency of roasted product quality.

[0017] Fast heating speed and high efficiency: Both electromagnetic induction heating and microwave radiation heating are rapid heating methods. Combining the two can significantly shorten the time it takes for materials to reach the target temperature, thus improving production efficiency. At the same time, both heating methods have high energy conversion efficiency, and the addition of insulation layers further reduces heat loss, thereby lowering overall energy consumption.

[0018] Precise temperature control: By employing multi-zone, multi-point temperature monitoring and using a temperature control system to perform closed-loop control of electromagnetic and microwave heating power, precise temperature regulation of the roasting process can be achieved, meeting the requirements of complex roasting processes.

[0019] High process flexibility: The roasting process can be flexibly adjusted by regulating parameters such as electromagnetic heating power, microwave heating power, material residence time, and atmosphere composition to meet the roasting requirements of different types of waste battery black powder.

[0020] In summary, the microwave-enhanced electromagnetic heating waste battery black powder roasting device of this utility model overcomes the defects of traditional roasting methods through the synergistic effect of microwave radiation heating and electromagnetic heating. It has the advantages of high heating efficiency, uniform temperature distribution, wide material adaptability, precise temperature control, and low energy consumption, and has important value for promotion and application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Explanation of the labels in the diagram: 1-Furnace body, 11-Outer shell, 12-Insulation layer, 13-Inner lining, 14-Roasting chamber, 15-Feed inlet, 16-Discharge outlet, 17-Observation window, 18-Auxiliary material inlet, 2-Electromagnetic heating system, 21-Electromagnetic induction coil, 22-Electromagnetic heater control cabinet, 3-Microwave heating system, 31-Magnetron, 32-Excitation chamber, 33-Microwave heating control cabinet, 4-Material conveying system, 41-Conveying screw, 41-Motor, 42-Reducer, 43-Variable frequency control cabinet, 5-Temperature control system, 51-Temperature sensor, 52-Temperature controller Detailed Implementation

[0024] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figure 1 The present invention discloses a microwave-enhanced electromagnetic heating waste battery black powder roasting device, comprising a furnace body 1, an electromagnetic heating system 2 and a microwave heating system 3 installed outside the furnace body 1, a material conveying system 4 extending into the furnace body 1, and a temperature control system 5.

[0026] The furnace body 1 includes an outer shell 11, an insulation layer 12, an inner lining 13, a roasting chamber 14, a feed inlet 15, a discharge outlet 16, an observation window 17, and an auxiliary material outlet 18. The inner lining forms the roasting chamber 14. The insulation layer 12 is disposed between the outer shell 11 and the inner lining 13 to reduce heat loss in the roasting chamber. The furnace body 1 has a feed inlet 15 and a discharge outlet 16 at both ends, and is equipped with graphite sealing rings as sealing devices. The side wall of the furnace body 1 is also provided with an observation window 17, which is made of high-temperature resistant quartz glass.

[0027] The microwave heating system 3 includes a magnetron 31, an excitation cavity 32, and a microwave heating control cabinet 33. The magnetron 31 generates microwave energy at a specific frequency. The excitation cavity 32 transmits the microwave energy generated by the magnetron 31 to the furnace body 1. The excitation cavity 32 is mounted on the furnace body 1 and connected to the roasting cavity 14, and is used to uniformly and effectively feed microwave energy into the roasting cavity 14 to heat the material by microwave radiation. Multiple microwave feeding devices can be provided and distributed along the circumference and / or axial direction of the roasting cavity 14 to improve the uniformity of the microwave field within the roasting cavity 14.

[0028] The electromagnetic heating system 2 includes an electromagnetic induction coil 21 and an electromagnetic heater control cabinet 22. The electromagnetic induction coil 21 is disposed on the outer periphery of the roasting chamber 14, located outside the inner lining 13 structural layer, and is electrically connected to the electromagnetic heater control cabinet 22. It is used to generate an alternating electromagnetic field in the roasting chamber 14, causing the material container to generate eddy current heating.

[0029] The material conveying system 4 is used to continuously or intermittently feed the material to be roasted into the roasting chamber 14 and output the roasted material from the roasting chamber 14. The roasting chamber 14 is provided with a feed inlet 15, a discharge outlet 16 and an auxiliary material outlet 18 at both ends, and is equipped with corresponding sealing devices.

[0030] The temperature control system includes multiple temperature sensors 51 and a temperature controller 52. The temperature sensors 51 are positioned at different locations within the roasting chamber 14 to monitor the temperature field distribution and material temperature within the chamber in real time. The temperature sensors 51 are electrically connected to the temperature controller 52, which is also electrically connected to the electromagnetic heating system 2 and the microwave heating system 3. Based on the set roasting temperature curve and feedback signals from the temperature sensors, the controller adjusts the output power of the electromagnetic heating system and the microwave heating system respectively, thereby achieving precise temperature control during the roasting process.

[0031] The temperature sensor 51 can be a thermocouple or an infrared thermometer. In a microwave environment, a thermocouple or infrared temperature measurement method with good microwave compatibility is preferred.

[0032] The furnace body 1 is provided with an observation window 17 for observing the state of the material inside the roasting chamber 14. The observation window 17 is made of a high-temperature resistant, microwave-resistant, and transparent material. For microwave environments, it is preferably made of high-temperature resistant quartz glass.

[0033] In this embodiment, waste ternary black powder is fed into the roasting chamber 14 via the material conveying system 4. Based on the material's characteristics (such as chemical composition, dielectric constant, and moisture content) and roasting process requirements, the microwave heating system 3 and the electromagnetic heating system 2 are activated. The microwave heating system 3 radiates microwave energy into the roasting chamber 14 through a microwave feed device (magnetron, excitation cavity), primarily heating the material through the microwave dielectric loss effect. During the heating phase, the microwave power ratio can be appropriately increased according to the material's absorption characteristics to utilize its rapid heating advantage. During the heat preservation phase, the temperature is mainly maintained through electromagnetic heating to ensure temperature uniformity and stability, and the microwave power can be adjusted for fine-tuning. The electromagnetic heating system 2 generates an alternating electromagnetic field within the roasting chamber 14 through an electromagnetic induction coil 21, primarily utilizing the electromagnetic induction effect combined with the lining and conveying screw 41. The two heating methods work synergistically to rapidly raise the temperature of the waste ternary black powder to the set roasting temperature. The temperature control system 5 (using a PLC control system) monitors the temperature in real time through the temperature sensor 51 and provides feedback to control the output power of the microwave heating system 3 and the electromagnetic heating system 2, so that the material temperature follows the set roasting curve. After roasting, the waste ternary black powder material is output from the roasting chamber 14 through the material conveying system 4. During the roasting process, the operator can observe the material status through the observation window 17.

[0034] The various embodiments provided by this utility model can be combined with each other in any way as needed, and the technical solutions obtained by such combinations are also within the scope of this utility model.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, then this utility model also includes these modifications and variations.

Claims

1. A microwave-enhanced electromagnetic heating device for roasting waste battery black powder, characterized in that, It includes a furnace body (1), an electromagnetic heating system (2) and a microwave heating system (3) installed outside the furnace body (1), a material conveying system (4) extending into the furnace body (1), and a temperature control system (5).

2. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 1, characterized in that, The furnace body (1) includes an outer shell (11), a heat insulation layer (12), an inner lining (13), a roasting chamber (14), a feed inlet (15), a discharge outlet (16), and an auxiliary material outlet (18). The inner lining (13) forms the roasting chamber (14). The heat insulation layer (12) is disposed between the outer shell (11) and the inner lining (13) to reduce heat loss in the roasting chamber (14).

3. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 2, characterized in that, The microwave heating system (3) includes a magnetron (31), an excitation cavity (32), and a microwave heating control cabinet (33). The magnetron (31) is used to generate microwave energy at a specific frequency. The excitation cavity (32) is used to transmit the microwave energy generated by the magnetron (31) to the furnace body (1); the excitation cavity (32) device is set on the furnace body (1) and connected to the roasting cavity (14) to feed microwave energy into the roasting cavity (14) evenly and effectively.

4. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 2, characterized in that, The electromagnetic heating system (2) includes an electromagnetic induction coil (21) and an electromagnetic heater control cabinet (22). The electromagnetic induction coil (21) is located on the outer periphery of the roasting chamber (14). The electromagnetic induction coil (21) is located outside the inner lining (13) structural layer and is electrically connected to the electromagnetic heater control cabinet (22). It is used to generate an alternating electromagnetic field in the roasting chamber (14) to generate eddy current heating in the material container.

5. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 2, characterized in that, The material conveying system (4) is used to continuously or intermittently feed the material to be roasted into the roasting chamber (14) and output the roasted material from the roasting chamber (14); the two ends of the roasting chamber (14) are respectively provided with a feed inlet (15), a discharge outlet (16) and an auxiliary material outlet (18) and are equipped with corresponding sealing devices.

6. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 2, characterized in that, The temperature control system (5) includes multiple temperature sensors (51) and a temperature controller (52); the temperature sensor (51) is set in the roasting chamber (14) to monitor the temperature field distribution and material temperature in the roasting chamber (14) in real time; the temperature sensor (51) is electrically connected to the temperature controller (52); the temperature controller (52) is electrically connected to the electromagnetic heating system (2) and the microwave heating system (3) respectively.

7. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 6, characterized in that, The temperature sensor (51) is a thermocouple or an infrared thermometer.

8. The microwave-enhanced electromagnetic heating waste battery black powder roasting device according to claim 2, characterized in that, The furnace body (1) is also provided with an observation window (17) for observing the state of the material in the roasting chamber (14); the observation window (17) is a transparent structure that is resistant to high temperature and microwave.

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