Smelting furnace

Abstract

The utility model discloses a smelting furnace which comprises a furnace body, a first driving device and a stirring device, a smelting cavity is formed in the furnace body, and the first driving device is connected with the furnace body and used for driving the furnace body to rotate around the central axis of the furnace body. The stirring device is used for conveying inert gas into smelted materials in the smelting cavity and comprises a gas source, a main gas pipe and a rotating connector, one end of the main gas pipe communicates with the gas source, and the other end of the main gas pipe communicates with the smelting cavity through the rotating connector. According to the smelting furnace disclosed by the utility model, the main gas pipe can be prevented from twisting in the rotating process of the furnace body so as to ensure that the stirring device can stably convey inert gas into smelted materials in the smelting cavity in the rotating process of the furnace body, namely, the inert gas can be stably conveyed into the smelted materials when the furnace body rotates to stir the smelted materials; the smelted material is stirred through the bubbles formed by the inert gas entering the smelted material, so that the stirring effect on the smelted material in the smelting process can be improved, the smelting efficiency can be improved, and the smelting period can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting devices, in particular to a smelting furnace. Background Art

[0002] During the operation of the copper-removing anode mud smelting furnace, after adding raw materials into the furnace chamber of the smelting furnace and heating it, a melt that can flow in the furnace chamber will form. However, due to the uneven heat distribution in the furnace chamber, the smelting efficiency is low. In order to allow the melt in the furnace chamber to fully conduct heat, the furnace body is driven to rotate in the related technology to stir the melt in the furnace chamber. However, the stirring effect of the melt in the furnace chamber by rotation alone is not good, and since the furnace body rotates continuously, it is difficult to add a stirring device. Therefore, there is room for improvement. Utility Model Content

[0003] The utility model provides a smelting furnace, which has the advantage that the smelting can be stirred by bubbles formed by inert gas entering into the smelting while the furnace body rotates to stir the smelting.

[0004] According to the smelting furnace of the embodiment of the utility model, it includes: a furnace body, which is formed with a smelting chamber; a first driving device, which is connected to the furnace body and is used to drive the furnace body to rotate around the central axis of the furnace body; a stirring device, which is used to transport inert gas toward the smelting in the smelting chamber and includes a gas source, a main gas pipe and a rotary joint, one end of the main gas pipe is connected to the gas source, and the other end of the main gas pipe is connected to the smelting chamber through the rotary joint.

[0005] According to the smelting furnace of the embodiment of the utility model, the main gas pipe is connected to the furnace body through a rotating joint, which can prevent the main gas pipe from twisting during the rotation of the furnace body, so as to ensure that the stirring device can stably transport inert gas to the smelting material in the smelting chamber during the rotation of the furnace body, that is, while the furnace body rotates to stir the smelting material, the smelting material can be stirred by bubbles formed by the inert gas entering the smelting material, thereby improving the stirring effect of the smelting material during the smelting process, and further improving the smelting efficiency to shorten the smelting cycle.

[0006] According to some embodiments of the utility model, a loading and unloading port connected to the smelting chamber is formed at one axial end of the furnace body, and the rotary joint is arranged on the end surface of the furnace body facing away from the loading and unloading port in the axial direction.

[0007] According to some embodiments of the present invention, in the radial direction of the furnace body, the rotary joint is arranged at the central axis of the furnace body.

[0008] According to some embodiments of the present utility model, the stirring device further includes a microporous air inlet structure provided on the furnace body, the microporous air inlet structure communicates with the rotary joint and the smelting chamber, one end of the furnace body in the axial direction forms a loading and unloading port communicating with the smelting chamber, and at least one of the microporous air inlet structures is provided at one end of the furnace body in the axial direction away from the loading and unloading port.

[0009] According to some embodiments of the present utility model, the microporous air inlet structure is a porous brick; and / or, the microporous air inlet structure includes an air inlet joint and a check valve, the air inlet joint is connected between the rotary joint and the check valve, and the check valve conducts unidirectionally in the direction towards the smelting chamber.

[0010] According to some embodiments of the present utility model, a plurality of the microporous air inlet structures are arranged at intervals in the circumferential direction and / or the axial direction of the furnace body.

[0011] According to some embodiments of the present utility model, the stirring device further includes bronchial tubes connecting the rotary joint and the microporous air inlet joints, there are a plurality of the bronchial tubes, and the number of the plurality of bronchial tubes is the same as and corresponds one-to-one to the number of the plurality of microporous air inlet structures.

[0012] According to some embodiments of the present utility model, a plurality of the microporous air inlet structures are arranged at evenly spaced intervals in the circumferential direction of the furnace body.

[0013] According to some embodiments of the present utility model, the smelting furnace further includes a second driving device for adjusting the angle between the central axis of the furnace body and the horizontal direction.

[0014] According to some embodiments of the present utility model, the smelting furnace further includes a control valve provided on the main air pipe for controlling the gas flow rate and pressure in the main air pipe.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a smelting furnace according to an embodiment of the present utility model;

[0017] Figure 2 is a partial schematic diagram of the furnace body and the stirring device of the smelting furnace according to an embodiment of the present utility model;

[0018] Figure 3 is Figure 2 a cross-sectional view taken along A-A in

[0019] Figure 4Schematic diagram of the furnace body, the first driving device, and the second driving device of the smelting furnace according to an embodiment of the present utility model;

[0020] Figure 5 Cross-sectional view of the microporous air inlet structure of the smelting furnace according to an embodiment of the present utility model.

[0021] Reference numerals:

[0022] 100, smelting furnace; 1, furnace body; 11, smelting chamber; 12, loading and unloading opening; 2, first driving device; 21, rotating bracket; 211, rolling ring; 212, first connecting beam; 213, second connecting beam; 214, mounting seat; 22, first rotating unit; 3, stirring device; 31, main air pipe; 32, rotary joint; 33, microporous air inlet structure; 331, air inlet joint; 332, check valve; 333, seat brick; 334, sleeve brick; 335, microporous brick; 336, brick core; 34, bronchus; 35, control valve; 4, second driving device; 41, support mechanism; 411, first support frame; 412, first rotating shaft; 413, second support frame; 414, second rotating shaft; 42, second rotating unit; 5, support seat; 200, smelting material. Detailed implementation manners

[0023] The embodiments of the present utility model are described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0025] The smelting furnace 100 according to an embodiment of the present utility model is described below with reference to the drawings.

[0026] As Figures 1 to 5As shown, the smelting furnace 100 according to an embodiment of the present invention includes: a furnace body 1, a first driving device 2, and a stirring device 3. The furnace body 1 forms a smelting cavity 11 for containing the smelting material 200 through the smelting cavity 11. The first driving device 2 is connected to the furnace body 1 and is used to drive the furnace body 1 to rotate around the central axis of the furnace body 1 (CL1 shown in the figure). Therefore, during the process of putting the smelting material 200 into the smelting cavity 11 for smelting, the first driving device 2 can drive the furnace body 1 to rotate around the central axis of the furnace body 1 to stir the smelting material 200 in the smelting cavity 11, so that various raw materials of the smelting material 200 in the smelting cavity 11 can be fully mixed. At the same time, the heat conduction effect between the smelting materials 200 in different regions of the smelting cavity 11 can be improved, and the temperature of the smelting materials 200 in different regions can be made more uniform. Furthermore, the smelting efficiency of the smelting furnace 100 can be improved to shorten the smelting cycle.

[0027] The stirring device 3 is used to convey inert gas into the smelting material 200 in the smelting cavity 11 and includes a gas source (not shown in the figure), a main gas pipe 31, and a rotary joint 32. One end of the main gas pipe 31 is communicated with the gas source, and the other end of the main gas pipe 31 is communicated with the smelting cavity 11 through the rotary joint 32. That is to say, the gas source can form a communicating air flow channel with the smelting cavity 11 through the main gas pipe 31 and the rotary joint 32 in sequence. It can be understood that the gas source can continuously provide inert gas, so that the inert gas at the gas source can enter the smelting material 200 in the smelting cavity 11 through the main gas pipe 31 and the rotary joint 32 in sequence. Among them, the smelting material 200 in the smelting cavity 11 is formed into a melt after heating, so that the inert gas entering the smelting material 200 can form a large number of bubbles to stir the smelting material 200 through the upward floating process of the bubbles. And, during the process of the bubbles formed by the inert gas floating upward, due to the high temperature of the smelting material 200, the bubbles can be heated and expanded through the smelting material 200 during the upward floating process to improve the stirring effect on the smelting material 200. Among them, through the rotary joint 32, the main gas pipe 31 can be prevented from twisting when the furnace body 1 rotates around the central axis.

[0028] Therefore, the main gas pipe 31 is connected to the furnace body 1 through the rotary joint 32, which can prevent the main gas pipe 31 from twisting during the rotation of the furnace body 1, so as to ensure that the stirring device 3 can stably convey inert gas into the smelting material 200 in the smelting cavity 11 during the rotation of the furnace body 1, that is, the smelting material 200 can be stirred by the bubbles formed by the inert gas entering the smelting material 200 while the furnace body 1 rotates to stir the smelting material 200, thereby improving the stirring effect on the smelting material 200 during the smelting process, and further improving the smelting efficiency to shorten the smelting cycle.

[0029] It should be noted that the gas source can be an inert gas storage container or an inert gas delivery pipeline, and no specific limitation is made here.

[0030] According to the smelting furnace 100 of the embodiment of the utility model, the main gas pipe 31 is connected to the furnace body 1 through the rotating joint 32, which can prevent the main gas pipe 31 from twisting during the rotation of the furnace body 1, so as to ensure that the stirring device 3 can stably transport inert gas to the smelting material 200 in the smelting chamber 11 during the rotation of the furnace body 1, so that the smelting material 200 can be stirred by bubbles formed by the inert gas entering the smelting material 200 while the furnace body 1 rotates to stir the smelting material 200, thereby improving the stirring effect on the smelting material 200, and further improving the smelting efficiency to shorten the smelting cycle of the smelting material 200.

[0031] In a specific example, the smelting furnace 100 is a copper-removing anode mud smelting furnace 100. During the operation of the smelting furnace 100, driven by the first driving device 2, the furnace body 1 continuously rotates 360° in one direction around its central axis.

[0032] According to some embodiments of the utility model, a loading and unloading port 12 connected to the smelting chamber 11 is formed at one end of the furnace body 1 in the axial direction, and a rotary joint 32 is arranged on the end surface of the furnace body 1 which is away from the loading and unloading port 12 in the axial direction. The smelting material 200 can be put into the smelting chamber 11 through the loading and unloading port 12 or the smelting material 200 in the smelting chamber 11 can be poured out through the loading and unloading port 12, and during the smelting process, a heating device such as a spray gun for adding fuel to the smelting chamber 11 can be extended into the smelting chamber 11 through the loading and unloading port 12. That is to say, the rotary joint 32 and the loading and unloading port 12 are located on opposite sides of the furnace body 1 in the axial direction, so that the stirring device 3 can make full use of the space of the furnace body 1 on the side away from the loading and unloading port 12 in the circumferential direction, and at the same time, the distance between the stirring device 3 and the loading and unloading port 12 can be increased, so that the stirring device 3 can be prevented from interfering with the loading and unloading operation at the loading and unloading port 12, and the influence of high temperature on the stirring device 3 can be prevented, so as to reduce the requirements for the high temperature resistance of the stirring device 3.

[0033] In a specific example, the stirring device 3 is located outside an end of the furnace body 1 that is away from the loading and unloading port 12 in the axial direction.

[0034] According to some embodiments of the present utility model, in the radial direction of the furnace body 1, the rotary joint 32 is disposed at the central axis of the furnace body 1. It can be understood that during the rotation of the furnace body 1 around the central axis, the closer the rotary joint 32 is to the central axis of the furnace body 1, the smaller the space occupied by the movement trajectory of the main air pipe 31. Therefore, it is possible to avoid the main air pipe 31 occupying too much space during the rotation of the furnace body 1. In a specific example, the rotary joint 32 includes a base and a rotating part. The base is fixedly arranged on the furnace body 1, the rotating part is rotatably arranged on the base, the rotating part is connected to the main air pipe 31, and the rotation axis of the rotating part relative to the base is collinear with the central axis of the furnace body 1. Therefore, during the rotation of the furnace body 1, the main air pipe 31 can remain stationary.

[0035] According to some embodiments of the present utility model, the stirring device 3 further includes a microporous air inlet structure 33 disposed on the furnace body 1. The microporous air inlet structure 33 communicates with the rotary joint 32 and the smelting cavity 11. An upper and lower material inlet 12 communicating with the smelting cavity 11 is formed at one end of the furnace body 1 in the axial direction. At least one microporous air inlet structure 33 is disposed at one end of the furnace body 1 in the axial direction away from the upper and lower material inlet 12. That is to say, the main air pipe 31 conveys inert gas to the microporous air inlet structure 33 through the rotary joint 32, and further enters the smelting cavity 11 through a plurality of microporous structures on the microporous air inlet structure 33. The microporous air inlet structure 33 can prevent the smelting material 200 in the smelting cavity 11 from entering the stirring device 3 while conveying inert gas into the smelting cavity 11, and the position of the microporous air inlet structure 33 on the furnace body 1 is the position where the inert gas enters the smelting cavity 11. It can be understood that under the action of gravity, the smelting material 200 in the smelting cavity 11 will gather at the lowest point of the smelting cavity 11. Therefore, by disposing at least one microporous air inlet structure 33 at one end of the furnace body 1 in the axial direction away from the upper and lower material inlet 12, the inert gas entering the smelting cavity 11 through the microporous air inlet structure 33 is closer to the inner bottom wall position of the smelting cavity 11, so that the distance in the up and down direction between the liquid level of the smelting material 200 in the smelting cavity 11 and the position where the inert gas enters the smelting cavity 11 can be increased, thereby extending the path length of the gas generated by the inert gas entering the smelting material 200 floating to the liquid level of the smelting material 200, and the position where the inert gas enters the smelting cavity 11 can be close to the bottom of the smelting material 200 to improve the stirring effect of the inert gas on the smelting material 200.

[0036] According to some embodiments of the present utility model, the microporous air inlet structure 33 is a breathable brick. The breathable brick has good high-temperature resistance, and a pore structure is formed on the breathable brick for gas passage, so that the microporous air inlet structure 33 can meet the air inlet requirements while resisting the high-temperature influence of the smelting material 200, thereby improving the stability and reliability of the stirring device 3 for conveying inert gas into the smelting material 200.

[0037] In a specific example, the breathable brick includes an intake joint 331, a check valve 332, a seat brick 333, a sleeve brick 334, a microporous brick 335, and a brick core 336. Among them, an intake cavity is formed in the seat brick 333, and the intake joint 331 is communicated with the intake cavity through the check valve 332. The sleeve brick 334, the microporous brick 335, and the brick core 336 are all arranged in the intake cavity. Specifically, the microporous brick 335 is formed into a hollow cylindrical shape and is frustum-shaped. The sleeve brick 334 is sleeved on the outer peripheral side of the microporous brick 335 and is filled between the microporous brick 335 and the inner peripheral surface of the intake cavity. The brick core 336 is frustum-shaped and is filled in the hollow part of the microporous brick 335. Thus, the microporous brick 335 can be better supported by the brick core 336 and the sleeve brick 334.

[0038] According to some embodiments of the present invention, the microporous intake structure 33 includes an intake joint 331 and a check valve 332. The intake joint 331 is connected between the rotary joint 32 and the check valve 332, and the check valve 332 is unidirectionally conductive in the direction towards the smelting cavity 11. That is to say, the inert gas discharged from the main gas pipe 31 through the rotary joint 32 enters the microporous intake structure 33 through the intake joint 331 and the check valve 332. The gas in the microporous intake structure 33 can only flow in the direction towards the smelting cavity 11, and the gas in the smelting cavity 11 cannot enter the air flow channel of the stirring device 3 located upstream of the microporous intake joint 331 through the microporous intake structure 33. Therefore, by setting the check valve 332, it is possible to preferably prevent the high-temperature gas in the smelting cavity 11 from flowing back into the air flow channels such as the rotary joint 32 and the main gas pipe 31 of the stirring device 3 located upstream of the microporous intake joint 331, thereby avoiding high-temperature damage to the stirring device 3 caused by high-temperature gas and ensuring the safe and stable operation of the stirring device 3.

[0039] According to some embodiments of the present invention, a plurality of microporous intake structures 33 are arranged at intervals in the circumferential direction and / or the axial direction of the furnace body 1. That is to say, the microporous intake structures 33 can be arranged as a plurality of structures spaced apart in the circumferential direction of the furnace body 1, so as to increase the positions where the stirring device 3 conveys inert gas into the smelting cavity 11 in the circumferential direction of the furnace body 1, and to ensure that during the rotation of the furnace body 1 around the central axis, at least one microporous intake structure 33 can convey inert gas into the smelting material 200 in the smelting furnace 100 to improve the stirring efficiency; the microporous intake structures 33 can also be arranged as a plurality of structures spaced apart in the axial direction of the furnace body 1, so as to increase the positions where the stirring device 3 conveys inert gas into the smelting cavity 11 in the axial direction of the furnace body 1, so as to increase the amount of inert gas conveyed into the smelting material 200, thereby improving the stirring effect; of course, the microporous intake structures 33 can also be arranged as a plurality of structures spaced apart in the circumferential direction and the axial direction of the furnace body 1 to further improve the stirring effect of the stirring device 3 on the smelting material 200.

[0040] According to some embodiments of the present utility model, the stirring device 3 further includes a bronchus 34 connecting the rotary joint 32 and the microporous air inlet joint 331. There are multiple bronchi 34, and the number of the multiple bronchi 34 is the same as and corresponds one-to-one to the number of the multiple microporous air inlet structures 33. That is to say, each microporous air inlet structure 33 is connected to the rotary joint 32 through the corresponding bronchus 34, so that the rotary joint 32 can more evenly transport the inert gas to the multiple microporous air inlet structures 33 through the multiple bronchi 34. In addition, by providing the bronchus 34, the flexibility of the position setting of the microporous air inlet structure 33 and the rotating structure can be improved. For example, the rotating structure can be arranged on the axial end face of the furnace body 1, and the microporous air inlet structure 33 can be arranged on the outer peripheral wall of the furnace body 1. By using a bronchus 34 with a suitable length, a connected air flow channel can be formed between the rotating structure and the microporous air inlet structure 33 to improve the layout flexibility of the stirring device 3.

[0041] It should be noted that the position and number of the microporous air inlet structures 33 can be flexibly adjusted according to actual production requirements. For example, when the furnace body 1 has a larger size in the axial direction, the number of the microporous air inlet structures 33 can be increased in the axial direction of the furnace body 1, and so on, which will not be elaborated here one by one.

[0042] According to some embodiments of the present utility model, the microporous air inlet structures 33 are provided with multiple ones arranged at equal intervals along the circumferential direction of the furnace body 1. For example, when there are three microporous air inlet structures 33 arranged at intervals along the circumferential direction of the furnace body 1, the angle between any two microporous air inlet structures 33 is 120°. Thus, through the equal interval arrangement of the multiple microporous air inlet structures 33, the uniformity of transporting the inert gas from the stirring device 3 into the smelting material 200 can be improved, so as to improve the stirring effect on the smelting material 200.

[0043] In some embodiments, the microporous air inlet structure 33 is arranged on the outer peripheral wall of the furnace body 1.

[0044] According to some embodiments of the present utility model, the smelting furnace 100 further includes a second driving device 4, and the second driving device 4 is used to adjust the angle between the central axis of the furnace body 1 and the horizontal direction. Therefore, the second driving device 4 can drive the furnace body 1 to rotate around an axis perpendicular to the central axis of the furnace body 1 (such as the CL2 shown in the figure), so as to facilitate pouring out the smelting material 200 in the smelting cavity 11 and reduce the difficulty of adding fuel into the smelting cavity 11.

[0045] In a specific example, the first driving device 2 includes a rotating bracket 21 and a first rotating unit 22. The rotating bracket 21 includes a girth gear 211, a first connecting beam 212, a second connecting beam 213, and a mounting seat 214. The girth gear 211 is formed in an annular shape, and the central axis of the girth gear 211 is collinear with the central axis of the furnace body 1. The furnace body 1 passes through the girth gear 211 and is rotatable relative to the girth gear 211 around its central axis. One end of the first connecting beam 212 is connected to the outer peripheral surface of the girth gear 211, and the other end extends toward the end of the furnace body 1 away from the loading and unloading port 12. One end of the second connecting beam 213 is connected to the outer peripheral surface of the girth gear 211, and the other end extends toward the end of the furnace body 1 away from the loading and unloading port 12. The first connecting beam 212 and the second connecting beam 213 are symmetrically arranged, and the other ends of the first connecting beam 212 and the second connecting beam 213 are both connected to the mounting seat 214. The mounting seat 214 is located on the side of the furnace body 1 axially deviating from the loading and unloading port 12. The first rotating unit 22 is mounted on the mounting seat 214, and the output shaft of the first rotating unit 22 is connected to the furnace body 1, so that the furnace body 1 is driven to rotate by the output shaft of the first rotating unit 22. The second driving device 4 includes a support mechanism 41 and a second rotating unit 42. The support mechanism 41 includes a first support frame 411, a first rotating shaft 412, a second support frame 413, and a second rotating shaft 414. The first rotating shaft 412 and the second rotating shaft 414 are respectively located on the opposite sides of the furnace body 1 in the radial direction. The first rotating shaft 412 and the second rotating shaft 414 are coaxially arranged and are both connected to the girth gear 211. The smelting furnace 100 further includes a support seat 5. The first support frame 411 and the second support frame 413 are respectively located on the opposite sides of the furnace body 1 in the radial direction and are both arranged on the support seat 5. The first rotating shaft 412 is rotatably passed through the first support frame 411, and the second rotating shaft 414 is rotatably passed through the second support frame 413. The second rotating unit 42 is arranged on the support seat 5, and the output shaft of the second rotating unit 42 is connected to the second rotating shaft 414.

[0046] According to some embodiments of the present invention, the smelting furnace 100 further includes a control valve 35. The control valve 35 is arranged on the main gas pipe 31 and is used to control the gas flow rate and pressure in the main gas pipe 31. Therefore, according to the stirring requirements of the smelting material 200 in the smelting furnace 100, the flow rate and pressure of the inert gas in the main gas pipe 31 can be controlled through the control valve 35, and the flow rate and pressure of the inert gas conveyed to the smelting material 200 by the stirring device 3 can be controlled, so that while preventing the waste of the inert gas, the stirring effect on the smelting material 200 can be ensured.

[0047] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A smelting furnace, characterized in that: include: A furnace body is formed with a smelting chamber; A first driving device, connected to the furnace body and used to drive the furnace body to rotate around the central axis of the furnace body; The stirring device is used to transport inert gas to the smelting material in the smelting chamber and comprises a gas source, a main gas pipe and a rotary joint, one end of the main gas pipe is connected to the gas source, and the other end of the main gas pipe is connected to the smelting chamber through the rotary joint.

2. The smelting furnace according to claim 1, characterized in that: A loading and unloading port communicating with the smelting chamber is formed at one axial end of the furnace body, and the rotary joint is arranged on the end surface of the furnace body which is away from the loading and unloading port in the axial direction.

3. The smelting furnace according to claim 2, characterized in that: In the radial direction of the furnace body, the rotary joint is arranged at the central axis of the furnace body.

4. The smelting furnace according to claim 1, characterized in that: The stirring device also includes a microporous air intake structure arranged on the furnace body, the microporous air intake structure connects the rotary joint and the smelting chamber, and an upper and lower material port connected to the smelting chamber is formed at one end of the furnace body in the axial direction, and at least one of the microporous air intake structures is arranged at one end of the furnace body away from the upper and lower material port in the axial direction.

5. The smelting furnace according to claim 4, characterized in that: The microporous air inlet structure is a breathable brick; and / or, the microporous air inlet structure includes an air inlet joint and a check valve, the air inlet joint is connected between the rotary joint and the check valve, and the check valve is unidirectionally conductive in a direction toward the smelting chamber.

6. The smelting furnace according to claim 4, characterized in that: The microporous air inlet structures are arranged in a plurality of circumferential and / or axial directions of the furnace body and are spaced apart from each other.

7. The smelting furnace according to claim 6, characterized in that: The stirring device also includes a bronchus connecting the rotary joint and the microporous air intake structure. The bronchus is provided in plurality, and the number of the plurality of bronchus is the same as the number of the plurality of microporous air intake structures and corresponds one to one.

8. The smelting furnace according to claim 6, characterized in that: The microporous air intake structure is provided with a plurality of microporous air intake structures which are evenly spaced and arranged in the circumferential direction of the furnace body.

9. The smelting furnace according to claim 1, characterized in that: It also includes a second driving device, which is used to adjust the angle between the central axis of the furnace body and the horizontal direction.

10. The smelting furnace according to claim 1, characterized in that: It also includes a control valve, which is arranged on the main air pipe and is used to control the gas flow and pressure in the main air pipe.

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