Reaction furnace and recovery system

Abstract

The utility model discloses a reaction furnace and a recovery system, and relates to the technical field of chemical equipment. The reaction furnace comprises a furnace body, a crucible and an isolation protection layer, the crucible and the isolation protection layer are both arranged in the furnace body, the isolation protection layer is arranged in the crucible, a reaction chamber is formed in the isolation protection layer, and the reaction chamber is used for containing reactants; the reaction furnace heats reactants in the reaction chamber through the crucible, and the isolation protection layer is used for separating the reactants in the reaction chamber from the crucible. The scheme at least can be used for improving the process quality of the reaction furnace.

Description

Technical Field

[0001] This application relates to the field of chemical equipment technology, and in particular to a reactor and recovery system. Background Technology

[0002] In the chemical industry, reaction furnaces are often used to heat and treat minerals, alloys, slags, etc., to achieve purposes such as smelting, casting, and recycling. Common reaction furnaces include medium-frequency furnaces and high-frequency furnaces.

[0003] In related technologies, a reactor includes a crucible and a melting chamber constructed within the crucible. Reactants are processed within the melting chamber to obtain superior process quality. However, in practice, it is often found that the reactants sinter together with the crucible, causing damage to the crucible and preventing the acquisition of the desired reaction products. This reflects an overall poor process quality in the related reactors. Utility Model Content

[0004] This application provides a reactor and a recovery system, which can at least be used to improve the process quality of the reactor.

[0005] In a first aspect, embodiments of this application provide a reactor.

[0006] The reactor includes a furnace body, a crucible, and an isolation protective layer, wherein: the crucible and the isolation protective layer are both located inside the furnace body, the isolation protective layer is located inside the crucible, and a reaction chamber is constructed within the isolation protective layer for placing reactants; the reactor heats the reactants in the reaction chamber through the crucible, and the isolation protective layer is used to separate the reactants in the reaction chamber from the crucible.

[0007] In some embodiments, the protective layer is made of at least one of corundum, ceramic material, and quartz glass.

[0008] In some embodiments, the crucible is a graphite crucible or a silicon carbide crucible.

[0009] In some embodiments, the reactor further includes a heat transfer transition layer disposed between the crucible and the isolation protective layer.

[0010] In some embodiments, when the isolation protective layer is a corundum layer and the crucible is a graphite crucible, the heat transfer transition layer is a hybrid layer of graphite and corundum.

[0011] In some embodiments, in the heat transfer transition layer, the proportion of corundum gradually decreases and the proportion of graphite gradually increases from the isolation protective layer to the crucible.

[0012] In some embodiments, the reactor is an induction reactor, which further includes an induction coil disposed on the outer periphery of the crucible. The induction coil is used to inductively heat the reactants in the crucible and / or the reaction chamber.

[0013] In some embodiments, the reactor further includes a first gas supply channel, which communicates with the reaction chamber and is used to supply gas to the upper side of the corresponding reaction chamber.

[0014] In some embodiments, the reactor further includes a second gas supply channel, which communicates with the reaction chamber and is used to supply gas to the bottom side of the corresponding reaction chamber.

[0015] In some embodiments, the reactor further includes a third gas supply channel, which communicates with the reaction chamber and is used to supply gas to the side of the corresponding reaction chamber.

[0016] In some embodiments, the furnace body includes a main body and a cover, the cover being movably disposed on the main body to allow the furnace body to switch between a first state and a second state. When the furnace body is in the first state, the cover is open relative to the main body to expose the reaction chamber. When the furnace body is in the second state, the cover is closed relative to the main body to seal the reaction chamber.

[0017] In some embodiments, an air gap exists between the crucible and the induction coil, and a third gas supply channel supplies gas through the air gap.

[0018] In some embodiments, the reactor includes a first gas supply line having a first gas supply channel, the first gas supply line being movably configured relative to the furnace body to adjust the height position of the outlet end of the first gas supply channel in the reaction chamber.

[0019] In some embodiments, the outlet of the third gas delivery channel is offset from the outer surface of the crucible to deliver gas.

[0020] In some embodiments, the air gap is an annular gap between the crucible and the induction coil, and the third air supply channel includes a plurality of air supply ports, which are evenly distributed circumferentially within the annular gap.

[0021] In some embodiments, the third gas delivery channel is an inert gas channel.

[0022] In some embodiments, the reactor further includes an exhaust passage, wherein: a filter screen is provided in the exhaust passage; and / or, the inlet end of the exhaust passage near the reaction chamber is open.

[0023] Secondly, embodiments of this application provide a recycling system that includes the reactor described in the first aspect of this application.

[0024] The technical solution adopted in this application can achieve the following beneficial effects:

[0025] The reactor disclosed in this application isolates the crucible from the reactants by setting an isolation protective layer, preventing the reactants from contacting the crucible during the process and thus avoiding chemical reactions between them. This ensures that the crucible is not corroded by the reactants, preventing damage to the crucible. Furthermore, since neither the reactants nor their products react chemically with the crucible, the desired product can be obtained. Therefore, compared to related technologies, the reactor of this application significantly improves process quality. Attached Figure Description

[0026] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0027] In the attached diagram:

[0028] Figure 1 This is a schematic diagram of the reactor structure disclosed in the first embodiment of this application;

[0029] Figure 2 This is a cross-sectional view of the reactor disclosed in the first embodiment of this application;

[0030] Figure 3 This is a cross-sectional view of the reactor disclosed in the second embodiment of this application;

[0031] Figure 4 This is a cross-sectional view of the reactor disclosed in the third embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Furnace body, 110-Main body, 120-Lid, 121-Feed inlet, 122-Exhaust pipe, 122a-Exhaust passage, 122a1-Open opening,

[0034] 200 - Crucible, 300 - Isolation and protective layer, 300a - Reaction chamber, 400 - Heat transfer transition layer, 500 - Induction coil

[0035] 600 - First air supply line, 600a - First air supply channel, 700 - Second air supply line, 700a - Second air supply channel, 800 - Air gap, 900 - Filter. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] To facilitate understanding of the reactor and recovery system provided in the embodiments of this application, the relevant technologies will first be introduced in conjunction with the application scenario.

[0038] Reactors using related technologies (such as medium-frequency furnaces) often exhibit poor process quality during use, specifically manifested in problems such as crucible damage and failure to obtain the expected reaction products.

[0039] Through research, the inventors discovered that the aforementioned problems are mainly caused by the chemical reaction between the crucible of the relevant reactor and the reactants or their products. Specifically, the relevant reactors, limited by various reaction requirements, have stringent requirements for the material selection of the crucible. For example, graphite crucibles, due to their excellent high-temperature resistance, chemical stability, and superior thermal conductivity and heating efficiency, have become a widely used type of crucible. However, some reactants, due to their composition, are prone to reacting with graphite, thus causing the aforementioned problems. For example, in the recovery of phosphorus and / or iron from ferrophosphate ore, ferrophosphate alloys, or lithium iron phosphate slag, the ferric oxide in the products will undergo a reduction reaction with graphite, leading to crucible corrosion and damage, and also destroying the reaction products.

[0040] In view of this, some embodiments of this application provide a reactor.

[0041] Please see Figures 1-4 The reactor disclosed in this application includes a furnace body 100, a crucible 200, and an isolation protective layer 300. The crucible 200 and the isolation protective layer 300 are both disposed within the furnace body 100. The isolation protective layer 300 is disposed within the crucible 200, and a reaction chamber 300a is constructed within the isolation protective layer 300. The reaction chamber 300a is used to place reactants. The reactor heats the reactants in the reaction chamber 300a through the crucible 200. The isolation protective layer 300 is used to separate the reactants in the reaction chamber 300a from the crucible 200.

[0042] The furnace body 100 serves as the basic component of the reactor, providing installation space for the crucible 200, the isolation and protective layer 300, and other components, while also providing protection. The furnace body 100 is typically made of high-temperature resistant stainless steel.

[0043] The reaction chamber 300a constructed within the isolation and protective layer 300 serves as the reaction space within the reactor. In a specific process, after reactants are placed into the reaction chamber 300a, a corresponding reaction environment can be formed within the reaction chamber 300a, such as an oxidizing environment, a reducing environment, or a protective atmosphere created by an inert gas.

[0044] In the embodiments of this application, the isolation protective layer 300 separates the reaction chamber 300a from the crucible 200. In this way, it can be ensured that the reactants are heated smoothly through the crucible 200 to achieve the reaction process, and the isolation protective layer 300 separates the reactants from the crucible 200 to ensure that the two do not come into direct contact, thereby avoiding chemical reaction between them.

[0045] For example, in the recovery of phosphorus and / or iron from lithium iron phosphate residue, the isolation protective layer 300 can be made of corundum, which is composed of Al2O3. The corundum layer isolates the reactants from the crucible 200, so that after the reactants produce ferric oxide, it will not react with the graphite crucible commonly used in related technologies, thereby preventing damage to the crucible 200 and preventing the expected product from being destroyed.

[0046] Therefore, in the process of this embodiment of the reactor, the crucible 200 will not be corroded by the reactants, thus preventing damage. Furthermore, since neither the reactants nor their products react chemically with the crucible 200, the desired product can be obtained. Compared to related technologies, the reactor of this embodiment can significantly improve process quality.

[0047] The embodiments of this application do not limit the specific material of the isolation protective layer 300. When dealing with different reactants and crucible 200 materials, the appropriate material of the isolation protective layer 300 can be selected.

[0048] In addition to the choice of corundum as the material, in other embodiments, the protective isolation layer 300 can also be made of ceramic materials or quartz glass, etc. For example, ceramic materials such as magnesium oxide (MgO), calcium oxide (CaO), and beryllium oxide (BeO) can be selected. When the reactant is a beryllium-aluminum alloy, the protective isolation layer 300 can be made of beryllium oxide, which does not react with the beryllium-aluminum alloy and can isolate it from the crucible 200.

[0049] Of course, the protective layer 300 can also be made from at least a combination of corundum, quartz glass, ceramic materials, etc. For example, corundum can be combined with other components to form a composite refractory material to make the protective layer 300.

[0050] The isolation and protective layer 300 shown in the above embodiments all have excellent high temperature resistance and chemical stability.

[0051] In the embodiments of this application, the crucible 200 can be of various types, including graphite crucibles and other types such as silicon carbide crucibles.

[0052] In some embodiments, such as Figure 2 and Figure 4 As shown, the reactor may also include a heat transfer transition layer 400, which is disposed between the crucible 200 and the isolation protective layer 300. It should be understood that the crucible 200, as a heating component, experiences a rapid temperature rise during the process. The isolation protective layer 300, on the other hand, absorbs heat from the outside to achieve its own temperature rise. This results in a significant temperature difference between the two layers, generating substantial thermal stress within them, which can easily damage the components. Considering the material of the crucible 200, such as a graphite crucible, the risk of cracking and damage is greatly increased.

[0053] In this example, a heat transfer transition layer 400 is provided between the crucible 200 and the isolation protective layer 300. The temperature rise performance of the heat transfer transition layer 400 is between that of the crucible 200 and the isolation protective layer 300. Therefore, during the process, the heat transfer transition layer 400 can obtain heat from the crucible 200 and achieve a relatively fast temperature rise. Its temperature rise efficiency is between that of the crucible 200 and the isolation protective layer 300. Compared with the crucible 200 and the isolation protective layer 300 being in direct contact and forming a large temperature difference between them, the temperature difference between the heat transfer transition layer 400 and the crucible 200, and the temperature difference between the heat transfer transition layer 400 and the isolation protective layer 300, are smaller in this example. Therefore, the thermal stress inside the crucible 200 and the isolation protective layer 300 is significantly reduced, thereby effectively preventing damage.

[0054] In a specific embodiment, the heat transfer transition layer 400 can be selected as a hybrid layer of the materials of the crucible 200 and the isolation protective layer 300. For example, when the isolation protective layer 300 is a corundum layer and the crucible 200 is a graphite crucible, the heat transfer transition layer 400 is a hybrid layer of graphite and corundum. This configuration, in addition to buffering thermal stress, also enables more efficient heat conduction through the graphite in the heat transfer transition layer 400, thereby improving heating uniformity.

[0055] In a further embodiment, in the heat transfer transition layer 400, the proportion of corundum gradually decreases and the proportion of graphite gradually increases from the isolation protective layer 300 to the crucible 200. It should be understood that this example employs a gradient composition in the heat transfer transition layer 400. This configuration results in a higher proportion of graphite in the portion of the heat transfer transition layer 400 closer to the crucible 200, which is more conducive to heat conduction. This portion is also closer to the temperature of the crucible 200 side, exhibiting a more gradual temperature change and effectively buffering thermal stress. Simultaneously, the portion of the heat transfer transition layer 400 closer to the isolation protective layer 300 has a higher proportion of corundum, and its temperature is also closer to that of the isolation protective layer 300, exhibiting a more gradual temperature change and effectively buffering thermal stress. Compared to using a homogeneous material for the heat transfer transition layer 400, this example offers higher thermal conductivity and superior thermal stress buffering performance.

[0056] In some embodiments, such as Figure 2 and Figure 4 As shown, the reactor can be an induction reactor. The reactor also includes an induction coil 500, which is located on the outer periphery of the crucible 200. The induction coil 500 is used to induction heat the reactants in the crucible 200 and / or the reaction chamber 300a.

[0057] It should be understood that in this example, crucible 200 is a conductive crucible, such as a graphite crucible, which has good electrical conductivity. It and the induction coil 500 achieve induction heating based on electromagnetic induction and the Joule heating effect, enabling crucible 200 to achieve a rapid temperature rise. Furthermore, if the reactants contain conductive components, the induction coil 500 can also induction heat these components, thereby improving heating and reaction efficiency. Of course, it is worth mentioning that if the reactants do not contain conductive components, the reactants can be heated through radiative heat transfer from the crucible 200.

[0058] In some embodiments, the furnace body 100 includes a main body 110 and a cover 120. The cover 120 is movably disposed on the main body 110 to allow the furnace body 100 to switch between a first state and a second state. When the furnace body 100 is in the first state, the cover 120 is open relative to the main body 110 to expose the reaction chamber 300a. When the furnace body 100 is in the second state, the cover 120 is closed relative to the main body 110 to seal the reaction chamber 300a.

[0059] It should be understood that in this arrangement, by switching the furnace body 100 to the first state, exposing the reaction chamber 300a, it is convenient to add reactants into the furnace body 100, while switching the furnace body 100 to the second state ensures a sealed reaction environment. Furthermore, a sealing element, such as a graphite sealing ring, can be provided at the joint between the cover 120 and the main body 110 to achieve airtightness in the high-temperature reaction environment.

[0060] Furthermore, the first state of the furnace body 100 is configured to allow the crucible 200 and the like to be removed from the furnace body 100 for maintenance.

[0061] Regarding the movable arrangement of the cover 120 and the main body 110, the state switching of the furnace body 100 can be achieved through a hinge; additionally, as... Figures 1-3 As shown, the cover 120 can also be configured to be detachably fastened to the main body 110.

[0062] In some embodiments, the furnace body 100 may be provided with a feed inlet 121, through which reactants can be added into the reaction chamber 300a. In this way, the furnace body 100 can be a one-piece structure to obtain reliable airtightness. Of course, in the embodiments where the furnace body 100 includes a movable cover 120, it may also be provided with a feed inlet 121.

[0063] In some embodiments, such as Figures 2-4 As shown, the reactor also includes a first gas supply channel 600a, which is connected to the reaction chamber 300a and is used to supply gas to the upper side of the reaction chamber 300a. This allows gas to be directly introduced into the reaction chamber 300a, which helps maintain the reaction conditions in the reaction chamber 300a. For example, to ensure that the reaction chamber 300a is in an oxidizing environment, oxygen, air, or oxygen-enriched air can be efficiently introduced into the reaction chamber 300a using the first gas supply channel 600a; to ensure that the reaction chamber 300a is in a reducing environment, hydrogen, carbon monoxide, methane, etc., can be efficiently introduced into the reaction chamber 300a using the first gas supply channel 600a.

[0064] Of course, the embodiments of this application do not specifically limit the layout features of the air inlet channel. In another embodiment, the reactor further includes a second air supply channel 700a, which communicates with the reaction chamber 300a and is used to supply gas to the bottom side of the corresponding reaction chamber 300a.

[0065] And, such as Figure 2 and Figure 4As shown, the reactor may also include a third gas supply channel, which is connected to the reaction chamber 300a and used to supply gas to the side of the reaction chamber 300a. More specifically, the third gas supply channel can directly enter the reaction chamber 300a from the bottom of the reactor, thus agitating the reactants by airflow, promoting reaction efficiency and optimizing reaction quality.

[0066] It is worth noting that in embodiments where the reactor has the above-mentioned multiple gas supply channels, gas can be introduced from different positions in the reactor, which is beneficial to the uniformity of gas distribution and creates a more complete reaction atmosphere.

[0067] The embodiments of this application do not specifically limit the forming method of the exhaust passage 122a and each intake passage. Exemplarily, the exhaust passage 122a can be formed in the exhaust pipe 122. Exemplarily, as... Figures 1-4 As shown, the reactor also includes a first gas supply line 600, which has a first gas supply passage 600a. Exemplarily, as... Figure 1 , Figure 2 and Figure 4 As shown, the reactor also includes a second gas supply line 700, which has a second gas supply channel 700a.

[0068] In an embodiment where the reactor includes a first gas supply line 600, such as Figure 3 As shown, the first gas supply pipe 600 is movably configured relative to the furnace body 100 to adjust the height position of the outlet end of the first gas supply channel 600a in the reaction chamber 300a. Figure 3 In the diagram, the dashed arrows indicate the movable path of the first air supply line 600.

[0069] It should be understood that the amount of reactants in the reaction chamber 300a is different in different processing techniques. In related technologies, the outlet end of the first gas supply channel 600 is usually set in a fixed position, but this makes it impossible to adapt the reaction atmosphere to the different amounts of reactants.

[0070] In this example, by movably setting the first gas supply pipe 600 to the furnace body 100, the height of the outlet end of the first gas supply channel 600a within the reaction chamber 300a can be adjusted. Thus, when the amount of reactants in the reaction chamber 300 is small, the outlet end of the first gas supply channel 600a can be lowered to bring it closer to the reactants, facilitating gas output and achieving a sufficient reaction atmosphere. When the amount of reactants in the reaction chamber 300 is large, the outlet end of the first gas supply channel 600a can be raised to prevent its outlet end from being covered by reactants, thus causing the gas supply function to fail.

[0071] It should be noted that the gas supply channel involved in the embodiments of this application can supply gas vertically. For example, the first gas supply pipeline 600 can be arranged to extend along the height direction of the reactor to output gas vertically.

[0072] To prevent short circuits between the crucible 200 and the induction coil 500, an insulating layer is usually provided between them.

[0073] In some embodiments of this application, such as Figure 2 and Figure 4 As shown, there is an air gap 800 between the crucible 200 and the induction coil 500, and the third gas supply channel supplies gas through the air gap 800. It should be understood that the air gap 800 separates the induction coil 500 from the crucible 200 and also prevents short circuits between the crucible 200 and the induction coil 500.

[0074] In this example, the air gap 800 prevents short circuits between the crucible 200 and the induction coil 500, ensuring reliable and stable heating. Furthermore, by connecting the third gas supply channel to the air gap 800 to deliver gas, an additional channel is eliminated, simplifying the structure. The gas introduced into the air gap 800 also cools the induction coil 500 and reduces thermal stress on the crucible 200.

[0075] Furthermore, the third gas supply channel is an inert gas channel. For example, the third gas supply channel is used to introduce argon, nitrogen, etc. It is worth noting that when inert gas is introduced into the air gap 800 through the third gas supply channel, it can form an airflow barrier outside the crucible 200, preventing high-temperature oxidation of the outer wall of the crucible 200, thereby reducing the risk of damage to the crucible 200.

[0076] In some embodiments, such as Figure 2 and Figure 4 As shown, the outlet of the third gas delivery channel is offset from the outer surface of the crucible 200 when gas is introduced. With this arrangement, the gas flow output from the third gas delivery channel is deflected relative to the outer surface of the crucible 200, preventing the gas flow from colliding with the crucible 200 with a large impact force, causing the crucible 200 to vibrate and thus avoiding damage. Simultaneously, the deflected gas flow from the third gas delivery channel will first contact the corresponding area of ​​the induction coil 500 and absorb heat. This prevents the gas flow temperature from being too low and negatively impacting the temperature uniformity of the outer surface of the crucible 200, thereby avoiding damage to the crucible 200 due to thermal stress caused by uneven temperature.

[0077] In some embodiments, such as Figure 2 and Figure 4As shown, the air gap 800 is an annular gap between the crucible 200 and the induction coil 500. Thus, after gas is introduced into the annular gap through the third gas supply channel, the aforementioned effects of reducing the thermal stress of the crucible 200 and preventing damage will be further enhanced.

[0078] Furthermore, the third gas delivery channel includes multiple gas delivery ports, which are evenly distributed circumferentially within the annular gap. This improves the uniformity of gas distribution within the annular gap and facilitates the filling of the annular space with the appropriate gas. For example, this can fill the annular pore with uniformly distributed argon gas to provide comprehensive and reliable protection for the outer surface of the crucible 200.

[0079] In embodiments of this application, the reactor further includes an exhaust passage 122a. Exemplarily, as... Figure 2 and Figure 4 As shown, the reactor also includes an exhaust pipe 122, which has an exhaust passage 122a.

[0080] In the embodiments of this application, such as Figure 2 As shown, a filter screen 900 is provided inside the exhaust channel 122a. In this example, the filter screen 900 can trap particulate matter in the flue gas to prevent some reactant components from escaping and being wasted. The reactant components on the filter screen 900 can be recovered later. The filter screen 900 can be multi-layered. Furthermore, the mesh count of the different layers of filter screen 900 can be set to be different. Preferably, along the exhaust channel 122a, the mesh count of the different layers of filter screen 900 has a gradient from small to large.

[0081] In another embodiment, such as Figure 4 As shown, the inlet end of the exhaust channel 122a near the reaction chamber 300a is open. It should be understood that the open end 122a1 can increase the contact area between the inlet end of the exhaust channel 122a and the flue gas of the reactants, which can improve the adhesion effect of the reactant components and thus improve the recovery effect.

[0082] Please see Figures 1-4 Some embodiments of this application also provide a recycling system, including the reactor described in any of the foregoing embodiments. Exemplarily, when processing phosphate rock, phosphate alloys, or lithium iron phosphate extraction slag through a reactor, the recycling system can serve as a system for recovering phosphorus and iron. Of course, the specific type of recycling system is not limited.

[0083] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0084] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A reactor, characterized in that, The reactor includes a furnace body, a crucible, and an insulating protective layer, wherein: Both the crucible and the isolation protective layer are located inside the furnace body. The isolation protective layer is located inside the crucible, and a reaction chamber is constructed within the isolation protective layer for placing the reactants. The reactor heats the reactants in the reaction chamber through the crucible, and the isolation protective layer is used to separate the reactants in the reaction chamber from the crucible.

2. The reactor according to claim 1, characterized in that, The protective layer is made of at least one of corundum, ceramic material and quartz glass; And / or, the crucible is a graphite crucible or a silicon carbide crucible; And / or, the reactor further includes a heat transfer transition layer disposed between the crucible and the isolation protective layer.

3. The reactor according to claim 2, characterized in that, When the isolation and protective layer is a corundum layer and the crucible is a graphite crucible, the heat transfer transition layer is a hybrid layer of graphite and corundum.

4. The reactor according to claim 3, characterized in that, In the heat transfer transition layer, from the isolation protective layer to the crucible, the proportion of corundum gradually decreases, while the proportion of graphite gradually increases.

5. The reactor according to any one of claims 1 to 4, characterized in that, The reactor is an induction reactor, and the reactor also includes an induction coil, which is disposed on the outer periphery of the crucible and is used to inductively heat the reactants in the crucible and / or the reaction chamber. And / or, the reactor further includes a first gas supply channel, which communicates with the reaction chamber and is used to supply gas to the upper side of the reaction chamber; And / or, the reactor further includes a second gas supply channel, which communicates with the reaction chamber and is used to supply gas to the bottom side of the reaction chamber; And / or, the reactor further includes a third gas supply channel, which is connected to the reaction chamber and is used to supply gas to the side of the reaction chamber. And / or, the furnace body includes a main body and a cover, the cover being movably disposed on the main body to allow the furnace body to switch between a first state and a second state. When the furnace body is in the first state, the cover is open relative to the main body to expose the reaction chamber. When the furnace body is in the second state, the cover is closed relative to the main body to seal the reaction chamber.

6. The reactor according to claim 5, characterized in that, There is an air gap between the crucible and the induction coil, and the third gas supply channel supplies gas through the air gap. And / or, the reactor includes a first gas supply line having a first gas supply channel, the first gas supply line being movably configured relative to the reactor body to adjust the height position of the outlet end of the first gas supply channel in the reaction chamber.

7. The reactor according to claim 6, characterized in that, The outlet of the third gas delivery channel is offset from the outer surface of the crucible to deliver gas; And / or, the air gap is an annular gap between the crucible and the induction coil, and the third air supply channel includes a plurality of air supply ports, which are evenly distributed circumferentially within the annular gap.

8. The reactor according to claim 6, characterized in that, The third gas delivery channel is an inert gas channel.

9. The reactor according to any one of claims 1 to 4, characterized in that, The reactor also includes an exhaust channel, wherein: The exhaust channel is equipped with a filter screen; and / or, the reactor further includes an exhaust channel, the inlet end of which is open near the reaction chamber.

10. A recycling system, characterized in that, The reactor comprising any one of claims 1 to 9.

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