CN115570142A - Vanadium-aluminum alloy melt treatment system and use method - Google Patents
Vanadium-aluminum alloy melt treatment system and use method Download PDFInfo
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- CN115570142A CN115570142A CN202211300455.6A CN202211300455A CN115570142A CN 115570142 A CN115570142 A CN 115570142A CN 202211300455 A CN202211300455 A CN 202211300455A CN 115570142 A CN115570142 A CN 115570142A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
Abstract
The invention relates to a vanadium-aluminum alloy melt processing system, which comprises: the smelting furnace is used for smelting vanadium-aluminum alloy, and is provided with a bottom flow port at the bottom, and the bottom flow port is provided with a bottom flow control valve; the smelting furnace comprises an atmosphere chamber box body, a smelting furnace and a gas inlet channel, wherein the atmosphere chamber box body is provided with a feed inlet, a discharge outlet, a gas inlet channel and a one-way exhaust valve, the feed inlet is connected with a bottom flow port to communicate the atmosphere chamber box body and the smelting furnace, and the gas inlet channel penetrates through the bottom of the atmosphere chamber box body and extends to the inside of the atmosphere chamber box body; and the conical rotating disc is rotatably arranged in the atmosphere chamber box body and is positioned below the feeding hole. The system obviously improves the quality of the vanadium-aluminum alloy product, simplifies the production process and reduces the production cost. The invention also provides a using method of the vanadium-aluminum alloy melt processing system.
Description
Technical Field
The invention relates to the field of metallurgy, and in particular relates to a vanadium-aluminum alloy melt processing system and a using method thereof.
Background
The titanium alloy has the characteristics of small density, high strength, good high-temperature resistance, excellent corrosion resistance and the like, and plays an important role in key materials in the fields of aerospace, petroleum, chemical industry, nuclear power, automobiles, medical treatment and the like, and in recent years, the demand of the titanium alloy market keeps a high-speed increasing trend. The vanadium-aluminum alloy is used as the master alloy with the largest usage amount in the titanium alloy, and the titanium alloy can be added to obviously improve the properties of the titanium alloy such as strength, toughness, formability, corrosion resistance, high temperature resistance and the like.
The vanadium-aluminum alloy has strict requirements on the component uniformity, the apparent quality and the granularity of the vanadium-aluminum alloy in the special fields of aerospace, weapon industry and the like. In the prior art, the granularity is controlled by crushing and screening, so that a large amount of over-crushed fine powder is generated in the process, and the primary yield of the vanadium-aluminum alloy is reduced; due to the density difference of V and Al, the V and Al sedimentation rates are different in the cooling process of the vanadium-aluminum alloy melt, so that the chemical components in the vanadium-aluminum alloy ingot are macrosegregated, and the component uniformity of the vanadium-aluminum alloy is reduced; stress is generated in the synchronous cooling process of smelting slag and vanadium-aluminum alloy, so that cracks appear on a slag layer and the alloy, and a large number of apparent defects of an oxide film and a nitride film appear on the alloy after O and N in air enter the alloy.
Thus, it is desirable to design a low cost, high efficiency, high quality vanadium aluminum alloy melt processing system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention mainly aims to provide a vanadium-aluminum alloy melt processing system, which adopts a vanadium-aluminum alloy smelting and melt processing integrated processing system to effectively overcome the defects of macrosegregation, high traditional broken fine powder rate and high apparent defect rate of visible oxynitride films in the melt cooling process by a method of directly granulating vanadium-aluminum alloy melt through rotation and carrying out argon rapid heat exchange protection cooling, obviously improves the quality of vanadium-aluminum alloy products, simplifies the production process and reduces the production cost. The invention also provides a using method of the vanadium-aluminum alloy melt processing system.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to the present invention, there is provided a vanadium aluminium alloy melt processing system comprising:
the smelting furnace is used for smelting vanadium-aluminum alloy, and is provided with a bottom flow port at the bottom, and the bottom flow port is provided with a bottom flow control valve;
the atmosphere chamber box body is provided with a feed inlet, a discharge outlet, an air inlet channel and a one-way exhaust valve, wherein the feed inlet is connected with a bottom flow port so as to communicate the atmosphere chamber box body with the smelting furnace, and the air inlet channel penetrates through the bottom of the atmosphere chamber box body and extends to the inside of the atmosphere chamber box body; and
the conical rotating disc is rotatably arranged inside the atmosphere chamber box body and is positioned below the feeding hole.
According to one embodiment of the present invention, the air intake passage has an annular radial cross section, and a first end thereof located outside the atmosphere chamber housing is provided with an air intake port, and a second end thereof located inside the atmosphere chamber housing is provided with an air blowing hole.
According to one embodiment of the invention, the second end of the air inlet channel is located below the conical rotating disk, and the air blowing holes are arranged to blow air towards the aluminum alloy particles sliding off from the conical rotating disk.
According to one embodiment of the invention, a vanadium aluminum alloy melt processing system comprises:
the driving mechanism is arranged for driving the conical rotating disk to rotate; and
and the main shaft is connected with the conical rotating disk and the driving mechanism and is coaxially arranged with the air inlet channel.
According to one embodiment of the invention, the air inlet channel and the main shaft are respectively connected with the bottom of the atmosphere chamber box body in a sealing mode.
According to one embodiment of the invention, the conical angle of the conical rotating disk is 37-42 degrees, the diameter of the bottom surface is 8-12 cm, and the diameter of the bottom flow port is 2-3 cm.
According to one embodiment of the invention, the upper part 2/3-4/5 of the smelting furnace is of a straight-tube type construction and the lower part 1/5-1/3 of the smelting furnace is of a funnel-shaped construction.
According to one embodiment of the invention the furnace wall of the funnel-shaped structure makes an angle of 60-70 ° with the horizontal.
According to one embodiment of the invention, the bottom of the atmosphere chamber housing is partially recessed to the interior, the inlet passage is provided in the recessed area, and the outlet is provided in the non-recessed area.
According to the invention, the use method of the vanadium-aluminum alloy melt processing system comprises the following steps:
starting a driving mechanism to control the conical rotating disc to rotate at a rotating speed of 270-420 r/min;
continuously supplying high-purity argon into the air inlet, and controlling the pressure value at the air inlet to be 0.12-0.24 Mpa;
adding vanadium-aluminum alloy smelting raw materials into a smelting furnace, and igniting and smelting the upper part of the smelting furnace;
opening a bottom flow control valve after the smelting reaction is finished so that the vanadium-aluminum alloy liquid flows into the conical rotating disc through the bottom flow port to form vanadium-aluminum alloy particles;
after all vanadium-aluminum alloy liquid completely flows out of the smelting furnace, closing the bottom flow control valve, and stopping supplying high-purity argon after the temperature of the outer wall of the discharge port is reduced to be below 100 ℃; and
and opening a discharge port to obtain vanadium-aluminum alloy particles, and further screening the vanadium-aluminum alloy particles to obtain a vanadium-aluminum alloy product.
By adopting the technical scheme, compared with the prior art, the invention has the following advantages: the invention organically integrates alloy smelting and alloy processing systems by adopting an integrated design idea, can realize the functions of rapid cooling, rotary granulation, air isolation, oxidation prevention and the like of hot alloy, and not only can improve the product quality, but also can improve the production efficiency through the functions. In the field of non-ferrous alloys, different smelting process characteristics and alloy physicochemical properties are combined, and through the optimization design of core parameters, the method can be popularized and applied in the field of vanadium alloys such as ferrovanadium, vanadium-aluminum and the like, and also has wide popularization and application prospects in the production fields of ferromolybdenum, ferroniobium, ferrotungsten, iron-aluminum and other intermediate alloys.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a schematic diagram of a vanadium aluminum alloy melt processing system according to the present invention;
figure 2 shows a flow diagram of a vanadium aluminium alloy melt processing method according to the present invention.
In the figure:
1 smelting furnace, 2 smelting slag, 3 vanadium-aluminum alloy liquid, 4 bottom flow control valves, 5 conical rotating disks, 6 air blowing holes, 7 air inlet channels, 8 motors, 9 bottom flow ports, 10 one-way exhaust valves, 11 atmosphere chamber boxes, 12 vanadium-aluminum alloy particles, 13 discharge ports, 14 air inlets and 15 main shafts.
Detailed Description
It should be understood that the embodiments of the invention shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present invention have been described in detail in this disclosure, those skilled in the art will readily appreciate that many modifications are possible without materially departing from the teachings of the present subject matter. Accordingly, all such modifications are intended to be included within the scope of this invention. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and parameters and the like of the following exemplary embodiments without departing from the spirit of the present invention.
FIG. 1 shows a vanadium aluminum alloy melt processing system according to one embodiment of the present invention, which generally comprises: the smelting furnace 1, an atmosphere chamber box body 11 arranged below the smelting furnace 1, and a conical rotating disk 5 rotatably arranged inside the atmosphere chamber box body 11. Specifically, the smelting furnace 1 is used for smelting vanadium-aluminum alloy, a bottom flow port 9 is arranged at the bottom of the smelting furnace, and a bottom flow control valve 4 is installed at the bottom flow port 9; the atmosphere chamber box body 11 is provided with a feeding hole, a discharging hole 13, an air inlet channel 7 and a one-way exhaust valve 10, wherein the feeding hole is connected with a bottom flow port 9 so as to communicate the atmosphere chamber box body 11 with the smelting furnace 1, and the air inlet channel 7 penetrates through the bottom of the atmosphere chamber box body 11 and extends to the inside of the atmosphere chamber box body 11; a conical rotating disc 5 may be located below the feed inlet. The smelting furnace 1 is hermetically connected with an atmosphere chamber box body 11 through an underflow control valve 4 and an underflow port 9.
The vanadium-aluminum alloy melt processing system adopts an integrated processing scheme of vanadium-aluminum alloy smelting and melt processing, and adopts a method of directly granulating vanadium-aluminum alloy melt under the drive of a conical rotating disk 5 and carrying out argon rapid heat exchange protection and cooling. The rotary granulation of the alloy melt avoids the generation of large amounts of fines during the crushing process. In the whole treatment process from the smelted vanadium-aluminum melt to the alloy product, the direct contact with an air medium is blocked by isolating air from the upper-layer hot slag in the smelting furnace 1 and purging argon in an atmosphere chamber, so that the thorough control of the oxynitride film is realized. The method has the advantages that the high-pressure argon purging is adopted to rapidly cool the vanadium-aluminum alloy melt, the defect that the brittleness ratio is increased due to macrosegregation caused by the difference of sedimentation rates and slow cooling is effectively overcome, the vanadium-aluminum alloy product is in a sphere-like or ellipsoid shape due to the rotary granulation, compared with the traditional crushing, the product particles have no obvious edges and corners, the brittleness phase ratio is reduced, the product shape is changed, the secondary pulverization in the screening process is guaranteed, and the fine powder rate is remarkably reduced.
In an embodiment of the present invention, the air intake passage 7 may have a ring-shaped radial cross-section, a first end thereof located outside the atmosphere chamber housing 11 is provided with the air intake port 14, and a second end thereof located inside the atmosphere chamber housing 11 is provided with the air blowing hole 6. In particular, the second end of the air intake passage 7 may be located below the conical rotating disk 5, and the air blowing holes 6 are provided to blow air toward the aluminum alloy particles sliding off from the conical rotating disk 5. Specifically, as shown in fig. 1, the second end of the air inlet passage 7 is bent in the radial direction of the air inlet passage 7 below the conical rotating disk 5, and the air blowing holes 6 are opened in the circumferential side wall formed after bending. The circumferential side wall may have an inclination angle adapted to the taper angle of the conical rotating disk 5 so that the gas blown from the gas blowing holes 6 is brought into sufficient contact with the aluminum alloy particles sliding off from the conical rotating disk 5.
The vanadium-aluminum alloy melt processing system can further comprise: a driving mechanism arranged to drive the conical rotary disk 5 to rotate, and a spindle 15 connecting the conical rotary disk 5 and the driving mechanism. Wherein the driving mechanism can be a motor 8 or other power device, and the main shaft 15 can be arranged coaxially with the air inlet channel 7. Further preferably, the center line of the conical rotating disk 5, the center line of the underflow port 9 and the center line of the smelting furnace 1 (i.e. the center lines of the main shaft 15 and the gas inlet passage 7) may be arranged to coincide such that the melt falls directly on top of the conical rotating disk 5 and is in full contact with the gas after rotating with the conical rotating disk 5. Wherein, the air inlet channel 7 and the main shaft 15 are respectively connected with the bottom of the atmosphere chamber box body 11 in a sealing way.
In the embodiment of the invention, the cone angle of the conical rotating disk 5 is 37-42 degrees, the diameter of the bottom surface is 8-12 cm, and the diameter of the bottom flow port is 2-3 cm. The upper part 2/3-4/5 of the smelting furnace 1 is of a straight cylinder structure, and the lower part 1/5-1/3 of the smelting furnace 1 is of a funnel-shaped structure, so that the melt falls down conveniently. The furnace wall of the funnel-shaped structure can form an included angle of 60-70 degrees with the horizontal line. Through the angle design, the full rotation of the melt can be facilitated, and direct granulation and argon rapid heat exchange protection cooling are realized.
The bottom of the atmosphere chamber housing 11 is partially recessed inside, the intake passage 7 is provided in the recessed area, and the discharge port 13 is provided in the unrecessed area. As further shown in fig. 1, the recessed area is formed by the furnace wall at the bottom being inclined upward, and the aluminum alloy particles sliding down from the conical rotary disk 5 are in full contact with the gas and then slide down through the inclined furnace wall to the discharge opening 13 at the non-recessed area at the bottom.
The invention also provides a use method of the vanadium-aluminum alloy melt processing system, as shown in fig. 2, the method comprises the following steps:
s1: starting a driving mechanism to control the conical rotating disk 5 to rotate at a rotating speed of 270-420 r/min;
s2: continuously supplying high-purity argon gas into the gas inlet 14, and controlling the pressure value at the gas inlet 14 to be 0.12-0.24 Mpa;
s3: adding vanadium-aluminum alloy smelting raw materials into the smelting furnace 1, and igniting and smelting the upper part of the smelting furnace;
s4: after the smelting reaction is finished, opening a bottom flow control valve 4 to enable the vanadium-aluminum alloy liquid 3 to flow into a conical rotating disk 5 through a bottom flow port 9 to form vanadium-aluminum alloy particles 12;
s5: after all vanadium-aluminum alloy liquid 3 completely flows out of the smelting furnace 1, closing the bottom flow control valve 4, and stopping supplying high-purity argon after the temperature of the outer wall of the discharge port 13 is reduced to be below 100 ℃;
s6: opening a discharge port 13 to obtain vanadium-aluminum alloy particles 12, and further screening the vanadium-aluminum alloy particles 12 to obtain a vanadium-aluminum alloy product; and
and removing the smelting slag 2 in the smelting furnace 1, and repeating the steps S1-S6 to repeatedly smelt and process the vanadium-aluminum alloy.
The following description is based on specific examples.
Example 1
3/4 of the upper part of the vanadium-aluminum alloy smelting furnace 1 is of a straight cylinder structure, 1/4 of the lower part of the vanadium-aluminum alloy smelting furnace 1 is of a funnel-shaped structure, the included angle between the furnace wall of the funnel-shaped structure and the horizontal line is 62 degrees, the diameter of the underflow opening 9 is 2.7cm, the cone angle of the conical rotating disk 5 is 39 degrees, and the diameter of the bottom surface is 11cm.
Producing the vanadium-aluminum alloy by adopting a vanadium-aluminum alloy melt treatment system:
s1: starting the motor 8 to control the rotating speed of the conical rotating disk 5 to be 316r/min;
s2: continuously supplying high-purity argon gas into the gas inlet 14, and controlling the pressure value at the gas inlet 14 to be 0.17Mpa;
s3: adding a vanadium-aluminum alloy smelting raw material into the vanadium-aluminum alloy smelting furnace 1, and igniting and smelting the upper part of the vanadium-aluminum alloy smelting furnace;
s4: after the smelting reaction is finished, opening a bottom flow control valve 4 to enable the vanadium-aluminum alloy liquid 3 to flow into a conical rotating disc 5 through a bottom flow port 9;
s5: after all the vanadium-aluminum alloy liquid 3 completely flows out of the vanadium-aluminum alloy smelting furnace 1, closing the bottom flow control valve 4, and stopping supplying high-purity argon after the temperature of the outer wall of the discharge port 13 is reduced to 90 ℃;
s6: and opening the discharge port 13 to obtain vanadium-aluminum alloy particles 12, wherein the vanadium-aluminum alloy particles 12 pass through a standard sieve of 6mm, and screen underflow passes through a standard sieve of 1mm to obtain a vanadium-aluminum alloy product.
Example 2
7/10 of the upper part of the vanadium-aluminum alloy smelting furnace 1 is of a straight cylinder structure, 3/10 of the lower part of the vanadium-aluminum alloy smelting furnace 1 is of a funnel structure, the included angle between the furnace wall of the funnel structure and the horizontal line is 68 degrees, the diameter of the underflow port 9 is 2.5cm, the cone angle of the conical rotating disk 5 is 41 degrees, and the diameter of the bottom surface is 10cm.
Producing the vanadium-aluminum alloy by adopting a vanadium-aluminum alloy melt treatment system:
s1: starting the motor 8 to control the rotating speed of the conical rotating disk 5 to be 400r/min;
s2: continuously supplying high-purity argon gas into the gas inlet 14, and controlling the pressure value at the gas inlet 14 to be 0.20Mpa;
s3: adding a vanadium-aluminum alloy smelting raw material into the vanadium-aluminum alloy smelting furnace 1, and igniting and smelting the upper part of the vanadium-aluminum alloy smelting furnace;
s4: after the smelting reaction is finished, opening a bottom flow control valve 4 to enable the vanadium-aluminum alloy liquid 3 to flow into a conical rotating disc 5 through a bottom flow port 9;
s5: after all vanadium-aluminum alloy liquid 3 completely flows out of the vanadium-aluminum alloy smelting furnace 1, closing the bottom flow control valve 4, and stopping supplying high-purity argon after the temperature of the outer wall of the discharge port 13 is reduced to 78 ℃;
s6: and opening the discharge port 13 to obtain vanadium-aluminum alloy particles 12, wherein the vanadium-aluminum alloy particles 12 pass through a standard sieve of 6mm, and screen underflow passes through a standard sieve of 1mm to obtain a vanadium-aluminum alloy product.
Example 3
11/15 on the vanadium aluminum alloy smelting furnace 1 is a straight-barrel structure, 4/15 under the vanadium aluminum alloy smelting furnace 1 is a funnel-shaped structure, the included angle between the furnace wall of the funnel-shaped structure and the horizontal line is 65 degrees, the diameter of the underflow port 9 is 2.2cm, the cone angle of the conical rotating disk 5 is 38 degrees, and the diameter of the bottom surface is 9cm.
Producing the vanadium-aluminum alloy by adopting a vanadium-aluminum alloy melt treatment system:
s1: starting a motor 8 to control the rotating speed of the conical rotating disc 5 to be 295r/min;
s2: continuously supplying high-purity argon gas into the gas inlet 14, and controlling the pressure value at the gas inlet 14 to be 0.14Mpa;
s3: adding vanadium-aluminum alloy smelting raw materials into the vanadium-aluminum alloy smelting furnace 1, and igniting and smelting the upper part of the vanadium-aluminum alloy smelting furnace;
s4: after the smelting reaction is finished, opening a bottom flow control valve 4 to enable the vanadium-aluminum alloy liquid 3 to flow into a conical rotating disc 5 through a bottom flow port 9;
s5: after all vanadium-aluminum alloy liquid 3 completely flows out of the vanadium-aluminum alloy smelting furnace 1, closing the bottom flow control valve 4, and stopping supplying high-purity argon after the temperature of the outer wall of the discharge port 13 is reduced to 85 ℃;
s6: and opening a discharge port 13 to obtain vanadium-aluminum alloy particles 12, wherein the vanadium-aluminum alloy particles 12 pass through a standard sieve of 6mm, and the sieved substances pass through a standard sieve of 1mm to obtain a vanadium-aluminum alloy product.
By adopting the vanadium-aluminum alloy smelting and melt processing integrated processing system, the defects of macrosegregation, high traditional broken fine powder rate and high apparent defect rate of visible oxynitride films in the melt cooling process can be effectively overcome through the method of directly granulating the vanadium-aluminum alloy melt through rotation and carrying out argon rapid heat exchange protection cooling, the product quality of the vanadium-aluminum alloy is obviously improved, the production process is simplified, and the production cost is reduced.
The above is an exemplary embodiment of the present disclosure, and the order of disclosure of the above embodiment of the present disclosure is only for description and does not represent the merits of the embodiment. It should be noted that the discussion of any embodiment above is exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to those examples, and that various changes and modifications may be made without departing from the scope, as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit or scope of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A vanadium aluminum alloy melt processing system, comprising:
the smelting furnace is used for smelting vanadium-aluminum alloy, a bottom flow port is formed in the bottom of the smelting furnace, and an underflow control valve is installed on the bottom flow port;
the smelting furnace comprises an atmosphere chamber box body, a smelting furnace and a gas inlet channel, wherein the atmosphere chamber box body is provided with a feed inlet, a discharge outlet, a gas inlet channel and a one-way exhaust valve, the feed inlet is connected with the underflow outlet so as to communicate the atmosphere chamber box body with the smelting furnace, and the gas inlet channel penetrates through the bottom of the atmosphere chamber box body and extends into the atmosphere chamber box body; and
the conical rotating disc is rotatably arranged inside the atmosphere chamber box body and is positioned below the feeding hole.
2. The vanadium aluminum alloy melt processing system according to claim 1, wherein the gas inlet channel has an annular radial cross section with a gas inlet provided at a first end located outside the atmosphere chamber housing and a gas blow hole provided at a second end located inside the atmosphere chamber housing.
3. The vanadium aluminum alloy melt processing system according to claim 2, wherein the second end of the gas inlet channel is located below the conical rotating disk, and the gas blowing holes are arranged to blow gas towards aluminum alloy particles sliding off from the conical rotating disk.
4. The vanadium aluminum alloy melt processing system according to claim 3, comprising:
the driving mechanism is arranged for driving the conical rotating disc to rotate; and
the main shaft is connected with the conical rotating disk and the driving mechanism and is coaxially arranged with the air inlet channel.
5. The vanadium aluminum alloy melt processing system according to claim 4, wherein the gas inlet channel and the spindle are each sealingly connected to the bottom of the atmosphere chamber box.
6. The vanadium-aluminum alloy melt processing system according to claim 1, wherein the conical angle of the conical rotating disc is 37-42 °, the bottom surface diameter is 8-12 cm, and the bottom flow port diameter is 2-3 cm.
7. The vanadium aluminum alloy melt processing system according to claim 1, wherein the upper part 2/3 to 4/5 of the smelting furnace is of a straight barrel type structure, and the lower part 1/5 to 1/3 of the smelting furnace is of a funnel type structure.
8. The vanadium aluminum alloy melt processing system according to claim 7, wherein the angle between the furnace wall of the funnel-shaped structure and the horizontal line is 60 ° to 70 °.
9. The vanadium aluminum alloy melt processing system of claim 1, wherein the bottom of the atmosphere chamber box is partially recessed inwardly, the inlet channel is provided in a recessed area, and the discharge outlet is provided in a non-recessed area.
10. A method of using the vanadium aluminum alloy melt processing system according to any one of claims 1 to 9, comprising:
starting a driving mechanism to control the conical rotating disc to rotate at a rotating speed of 270-420 r/min;
continuously supplying high-purity argon into the air inlet, and controlling the pressure value at the air inlet to be 0.12-0.24 Mpa;
adding vanadium-aluminum alloy smelting raw materials into a smelting furnace, and igniting and smelting the upper part of the smelting furnace;
opening a bottom flow control valve after the smelting reaction is finished so that the vanadium-aluminum alloy liquid flows into the conical rotating disc through the bottom flow port to form vanadium-aluminum alloy particles;
after all vanadium-aluminum alloy liquid completely flows out of the smelting furnace, closing the bottom flow control valve, and stopping feeding high-purity argon after the temperature of the outer wall of the discharge port is reduced to be below 100 ℃; and
and opening a discharge port to obtain vanadium-aluminum alloy particles, and further screening the vanadium-aluminum alloy particles to obtain a vanadium-aluminum alloy product.
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