Vacuum microwave smelting furnace

Abstract

The utility model discloses a vacuum microwave smelting furnace, and relates to the technical field of alloy smelting. In order to solve the problems that in the existing microwave smelting process, raw materials cannot be sequentially added, melted and subjected to heat preservation when complex alloy is smelted, and adverse effects are caused to the smelting effect, the following technical scheme is provided that the microwave smelting furnace comprises a furnace body shell and an online feeding tank, a rotating table is arranged at the bottom of the furnace body shell, and the rotating speed of the rotating table is controlled through a servo motor; a crucible is arranged at the top of the rotating table, the inlet end of the crucible is communicated with an online feeding tank through a raw material guide pipe, a microwave source is arranged on the side of the crucible, and an infrared thermometer is arranged at the position, above the inlet end of the crucible, of the top of the furnace body shell; the infrared thermometer, the microwave source and the servo motor are all in communication connection with the control system. The device has the remarkable advantages in the aspects of regulating and controlling the raw material adding sequence, adapting to various smelting environments, improving the smelting efficiency and effect, enhancing the controllability of the smelting process, expanding the application range and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to alloy smelting technical field, concretely relates to a vacuum microwave smelting furnace. BACKGROUND

[0002] Liquid forming is widely used in alloy material processing and is one of the most commonly used forming methods. In the process of alloy liquid forming, to ensure the organization and performance requirements of the subsequent product, the components of the predetermined ratio need to be added to the crucible in a certain order, melted and kept for a period of time, and then the subsequent components are added in turn.

[0003] Compared with traditional high-energy-consumption arc smelting, induction smelting and other high-energy-consumption smelting processes, microwaves, as a low-energy clean energy, are widely used in alloy smelting, with the characteristics of energy saving, high heating efficiency, fast heating rate and uniform heating. The current microwave smelting furnace does not consider the addition order of the raw materials in the process of smelting alloy with microwaves as the heat source, which affects the smelting effect.

[0004] CN 113483570 A vacuum microwave smelting device proposes a device for vacuum microwave smelting technology, but does not include an online feeding function.

[0005] CN 201662322 U microwave high-temperature smelting device proposes a device for smelting precious metal powder using microwave energy. The device is only used in an atmospheric environment and does not include an online feeding function.

[0006] However, the above two microwave smelting related patents do not consider the problem of online addition of raw materials. INVENTION CONTENTS

[0007] The utility model aims at providing a vacuum microwave smelting furnace to solve the problem that the existing microwave smelting process cannot realize the sequential addition, melting and heat preservation of raw materials when smelting complex alloys, which adversely affects the smelting effect.

[0008] The technical solution of the utility model to solve the above technical problem is as follows:

[0009] A vacuum microwave smelting furnace comprises a furnace body shell and an online feeding tank arranged at the top of the furnace body shell. The bottom of the furnace body shell is provided with a rotating table, the rotating table controls the rotating speed through a servo motor, the top of the rotating table is provided with a crucible, the inlet end of the crucible is communicated with the online feeding tank through a raw material guide pipe, a microwave source is arranged at the side of the crucible, and an infrared temperature measuring instrument is arranged above the inlet end of the crucible at the top of the furnace body shell. The infrared temperature measuring instrument, the microwave source and the servo motor are in communication connection with a control system.

[0010] Further, the inner wall of the furnace body shell is provided with a heat preservation layer, and the microwave source is arranged on the inner side of the heat preservation layer.

[0011] Further, the bottom of the furnace shell is provided with a moving support, and the servo motor is arranged on the moving support.

[0012] Further, a sealing ring is arranged between the furnace shell and the moving support.

[0013] Further, the inlet end of the raw material guide pipe is provided with an electric valve for controlling the addition of raw materials, and the electric valve is in communication connection with the control system.

[0014] Further, the side end of the furnace shell is provided with a vacuum system for vacuumizing the hearth, and the vacuum system is in communication connection with the control system.

[0015] Further, the side end of the furnace shell is provided with a gas cylinder system for regulating the atmosphere in the furnace, and the gas cylinder system is in communication connection with the control system.

[0016] The utility model has the following beneficial effects:

[0017] The ability to regulate the sequence of raw material addition: the utility model realizes the accurate regulation of the sequence of raw material addition by introducing an online feeding device. This feature is crucial for the smelting of complex alloys, as different alloy components may need to be added at different smelting stages to ensure that the final composition and performance of the alloy meet expectations. By adding raw materials in an orderly manner, the microstructure and performance of the alloy can be more effectively controlled, improving the quality and consistency of the alloy.

[0018] Adapt to multiple smelting environments: the smelting furnace of the utility model can perform microwave smelting in multiple environments such as vacuum and atmosphere. This flexibility enables the smelting furnace to be applicable to different types of alloys and materials, meeting more extensive smelting needs. For example, smelting in a vacuum environment can avoid oxidation and contamination, while smelting in a specific atmosphere can control the gas content and phase composition in the alloy.

[0019] Improve smelting efficiency and effect: through the combination of online feeding device and microwave heating, the smelting furnace of the utility model can realize rapid and uniform heating and smelting of raw materials. This not only improves the smelting efficiency and shortens the production cycle, but also helps to obtain a more uniform and denser alloy structure. In addition, the non-contact nature of microwave heating reduces heat loss and energy waste, further improving the economy of smelting.

[0020] Enhance the controllability of the smelting process: the smelting furnace of the utility model is equipped with an advanced control system that can monitor and regulate key parameters such as temperature, atmosphere, and raw material addition during the smelting process in real time. This high degree of controllability helps to ensure the stability and repeatability of the smelting process, reducing uncertainty and risk in the production process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the vacuum microwave smelting furnace of the utility model;

[0022] Figure 1 The reference signs shown in the figure are respectively: online feeding tank 1, raw material guide pipe 2, infrared temperature measuring instrument 3, crucible 4, furnace body shell 5, heat preservation layer 6, microwave source 7, rotating table 8, sealing ring 9, servo motor 10, electric valve 11, vacuum system 12, gas cylinder system 13. Specific implementation

[0023] The technical scheme of the utility model is clearly and completely described below in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figure 1 The utility model relates to a kind of vacuum microwave smelting furnaces, which combines microwave heating, vacuum environment control and online feeding, and can realize rapid, efficient and uniform smelting of metals, alloys and other materials. The following is a detailed description of the specific embodiments of the utility model.

[0025] The vacuum microwave smelting furnace of the utility model mainly includes furnace body shell 5, online feeding tank 1, rotating table 8, servo motor 10, crucible 4, microwave source 7, infrared temperature measuring instrument 3 and other key components. Through ingenious design and layout between components, automation, intelligence and efficiency of the entire smelting process are realized.

[0026] Furnace body shell 5 is the main structure of the entire smelting furnace, which is made of high-strength and high-temperature resistant material to ensure that it can withstand high temperature and high pressure during smelting. The shape and size of furnace body shell 5 are designed according to smelting requirements, and one or more smelting chambers are provided inside for accommodating crucible 4 and performing smelting operations. The top of furnace body shell 5 is provided with an opening for installing online feeding tank 1, and is connected to the inside of the furnace body through a pipeline to ensure that the vacuum degree of the entire system is consistent. In addition, the inner wall of furnace body shell 5 is also provided with heat preservation layer 6, which is made of high-efficiency heat preservation material to reduce heat loss during smelting and improve smelting efficiency.

[0027] The on-line feeding tank 1 is an innovative point of the utility model, it sets up at the top of the furnace body shell 5, and is connected with the inside of the furnace body through the pipeline. The material of the on-line feeding tank 1 is made of high-temperature-resistant and corrosion-resistant material to ensure stability and reliability during the smelting process. The bottom of the on-line feeding tank 1 is connected with the raw material guide pipe 2 made of wave-transparent material. The raw material guide pipe 2 is used to smoothly guide the raw material in the feeding tank into the crucible 4. In order to realize accurate control of the raw material addition amount, the inlet end of the raw material guide pipe 2 is provided with an electric valve 11. The electric valve 11 is in communication connection with the control system and can be automatically opened or closed according to the preset program or operation instruction, so as to realize accurate adjustment of the raw material addition amount.

[0028] The crucible 4 is a key component in the smelting process, which is used to contain the raw material to be smelted and smelted by microwave heating. The material of the crucible 4 is selected according to the properties of the smelted raw material. For the raw material made of wave-absorbing material, the crucible 4 should be made of wave-transparent material to avoid the absorption of microwave energy in the crucible and reduce the smelting efficiency. For the raw material made of wave-transparent material, the crucible 4 can be made of wave-absorbing material to better absorb microwave energy and convert it into heat energy, improving the smelting efficiency. The inlet end of the crucible 4 is communicated with the on-line feeding tank 1 through the raw material guide pipe 2, ensuring that the raw material can smoothly enter the crucible for smelting.

[0029] The microwave source 7 is one of the core components of the smelting furnace of the utility model, which is used to provide microwave energy and realize rapid heating and smelting of the raw material in the crucible 4 by microwave heating. The number and layout of the microwave source 7 are designed according to the size and shape of the hearth to ensure that the microwave energy can be uniformly distributed in the crucible 4, improving the uniformity and efficiency of smelting. The microwave source 7 is arranged inside the heat preservation layer 6 to reduce the loss and interference of microwave energy. The microwave source 7 is in communication connection with the control system and can automatically adjust the microwave power and frequency according to the preset program or operation instruction to meet different smelting needs.

[0030] The infrared temperature measuring instrument 3 is another important component of the smelting furnace, which is used to measure and monitor the smelting temperature in the crucible 4. The infrared temperature measuring instrument 3 is installed on the top of the furnace body shell 5, above the inlet end of the crucible 4, to ensure that the temperature during the smelting process can be accurately measured. The infrared temperature measuring instrument 3 is in communication connection with the control system, can transmit the measured temperature data to the control system in real time, and automatically adjust the power and frequency of the microwave source 7 according to the preset temperature control strategy to maintain the constancy and stability of the smelting temperature.

[0031] The rotating table 8 is a unique design of the smelting furnace, which is arranged at the bottom of the furnace shell 5 and used for carrying the crucible 4 and realizing rotation of the crucible 4. The rotating table 8 is made of a wave-transparent material to avoid absorption of microwave energy in the rotating table 8 and reduce smelting efficiency. The rotating speed of the rotating table 8 is controlled by the servo motor 10 arranged on the movable support, and the rotating speed and rotating direction of the rotating table 8 can be accurately adjusted through the control system. The rotating action of the rotating table 8 can promote heat transfer and material mixing in the smelting process, and improve uniformity and efficiency of smelting.

[0032] The movable support is an auxiliary component of the smelting furnace, which is used for supporting the furnace shell 5, the rotating table 8 and other components, and can meet different smelting requirements by moving and adjusting the position. The movable support has a reasonable and stable structure, and can ensure stability and reliability in the smelting process. In addition, the sealing ring 9 is arranged between the movable support and the furnace shell 5 to ensure the air tightness of the whole system and prevent external gas from entering the furnace to affect the smelting process.

[0033] In addition to the above key components, the vacuum microwave smelting furnace of the utility model is also provided with a vacuum system 12 and a gas cylinder system 13 and other auxiliary components. The vacuum system 12 is arranged at the side end of the furnace shell 5 and used for vacuumizing the furnace chamber to eliminate the influence of oxygen and other impurities in the furnace on the smelting process. The vacuum system 12 is in communication connection with the control system and can automatically start and stop the vacuumizing operation according to the preset program or operation instruction. The gas cylinder system 13 is also arranged at the side end of the furnace shell 5 and used for regulating the atmosphere environment in the furnace. The gas cylinder system 13 can fill inert gas or other protective gas into the furnace according to the need to prevent oxidation and pollution in the smelting process. The gas cylinder system 13 is also in communication connection with the control system and can automatically adjust the parameters such as type, flow and pressure of the gas according to the preset program or operation instruction.

[0034] In the specific implementation process, the vacuum microwave smelting furnace of the utility model can be operated according to the following steps:

[0035] Firstly, the raw material to be smelted is put into the online feeding tank 1, and the parameters such as raw material adding amount and adding speed are set through the control system. Then, the vacuum system 12 is started to vacuumize the furnace chamber to eliminate the influence of oxygen and other impurities in the furnace on the smelting process. When the vacuum degree in the furnace reaches the preset value, the vacuum system 12 is closed.

[0036] Next, the appropriate crucible 4 is selected according to the smelting requirement and placed on the rotating table 8. Then, the servo motor 10 is started to drive the rotating table 8 to rotate through the control system, and the appropriate rotating speed and rotating direction are set. At the same time, the microwave source 7 is started, and the parameters such as microwave power and frequency are adjusted according to the preset program or operation instruction.

[0037] During the smelting process, the infrared thermometer 3 will measure the smelting temperature in the crucible 4 in real time, and transmit the measured temperature data to the control system in real time. The control system will automatically adjust the power and frequency of the microwave source 7 and other parameters according to the preset temperature control strategy, so as to keep the smelting temperature constant and stable. At the same time, the control system will also automatically adjust the raw material adding amount and adding speed and other parameters according to the preset program or operation instruction, so as to ensure the continuity and stability of the smelting process.

[0038] When the smelting is completed, the microwave source 7 and the servo motor 10 and other components are turned off. Then, the gas cylinder system 13 is started by the control system to fill the inert gas or other protective gas into the furnace, so as to prevent the smelted metal or alloy from being oxidized and contaminated. Finally, the top opening of the furnace body shell 5 is opened, and the smelted metal or alloy is taken out for subsequent processing.

[0039] In addition, the vacuum microwave smelting furnace of the present application can be further optimized and improved according to actual needs. For example, an observation window or a camera and other components can be provided on the furnace body shell 5 to observe the smelting process in real time; a stirrer and other components can be provided on the rotating table 8 to promote the mixing of substances and heat transfer during the smelting process; and fault diagnosis and alarm functions can be added to the control system to improve the reliability and safety of the equipment.

[0040] In summary, the vacuum microwave smelting furnace of the present application has the advantages of simple structure, easy operation, high smelting efficiency, stable smelting quality, etc. It is suitable for smelting and preparation of various metals, alloys and other materials, and has wide application prospects in the fields of aerospace, automobile manufacturing, mechanical manufacturing, etc.

[0041] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A vacuum microwave melting furnace, characterized by, The utility model relates to a microwave heating furnace, including: The furnace body shell (5) and the online feeding tank (1) that sets up at the top of furnace body shell (5), the bottom of furnace body shell (5) is equipped with rotating platform (8), rotating platform (8) controls the rotating speed through servo motor (10), the top of rotating platform (8) is equipped with crucible (4), the inlet end of crucible (4) is communicated with online feeding tank (1) through raw material guide pipe (2), the side of crucible (4) is equipped with microwave source (7), the top of furnace body shell (5) is located the above of the inlet end of crucible (4) and is equipped with infrared temperature detector (3);Infrared temperature detector (3), microwave source (7) and servo motor (10) are all connected with control system communication.

2. The vacuum microwave melting furnace of claim 1, wherein, The inner wall of the furnace body shell (5) is provided with a heat preservation layer (6), and the microwave source (7) is arranged on the inner side of the heat preservation layer (6).

3. The vacuum microwave melting furnace of claim 1, wherein, The bottom of the furnace body shell (5) is provided with a movable support, and the servo motor (10) is arranged on the movable support.

4. The vacuum microwave melting furnace of claim 3, wherein, A sealing ring (9) is arranged between the furnace body shell (5) and the movable support.

5. The vacuum microwave melting furnace according to any one of claims 1 to 4, characterized in that An electric valve (11) for controlling the addition of raw materials is arranged at the inlet end of the raw material guide pipe (2), and the electric valve (11) is connected with the control system.

6. The vacuum microwave melting furnace of claim 5, wherein, A vacuum system (12) for vacuumizing the furnace chamber is arranged at the side end of the furnace body shell (5), and the vacuum system (12) is connected with the control system.

7. The vacuum microwave melting furnace of claim 5, wherein, A gas cylinder system (13) for regulating the atmosphere in the furnace is arranged at the side end of the furnace body shell (5), and the gas cylinder system (13) is connected with the control system.

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