Method for producing high-quality ferrovanadium through remelting

Abstract

The invention discloses a method for producing high-quality ferrovanadium by remelting, which comprises the following steps: firstly, determining the grade and variety of a ferrovanadium raw material to be remelted and the variety of target high-quality ferrovanadium, and then performing classified regulation and control: blending the material amount of the same variety of low-quality ferrovanadium according to the element content requirement; determining core regulation and control elements and target references of different low-quality varieties, and then blending; high-quality ferrovanadium is combined with target requirements and the adding amount of elements brought in by vanadium oxide is determined. The invention provides a method for producing high-quality ferrovanadium by remelting different types and different grades of ferrovanadium. The prominent problems that low-quality ferrovanadium cannot be produced into high-quality ferrovanadium, the ferrovanadium fine powder rate is high, products cannot be obtained in time, the ferrovanadium inventory is insufficient, the production cost of the high-quality ferrovanadium is high, and the production organization of the high-quality ferrovanadium is not flexible can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of vanadium metallurgy, and more particularly to a method for producing high-quality ferrovanadium through remelting. Background Technology

[0002] Currently, domestic and international companies using large tilting electric furnaces to smelt ferrovanadium (equivalent to FeV50 with an average cake weight ≥10t / furnace) have a designed annual output of 18,800 tons (equivalent to FeV50). The production lines include two specifications, medium-grade ferrovanadium and high-grade ferrovanadium, as well as various products. Due to changes in market demand, insufficient vanadium resources, and low inventory plans, the ferrovanadium production process often faces shortages of varieties and inventory resources. Users urgently need the products, leading to temporary production adjustments and resulting in passive production. At the same time, the high fine powder ratio (16-20%) and the existence of different low-quality products in the ferrovanadium production process prevent vanadium resources from being converted into products in a timely manner. This seriously affects the normal production organization of ferrovanadium, the timely demand of users for products, and the timely realization of product value. It also increases the production cost of ferrovanadium, especially the production cost of high-quality ferrovanadium. As a result, low-quality ferrovanadium and fine powder are recycled directly to produce conventional ferrovanadium, and high-quality ferrovanadium is shipped out as conventional ferrovanadium when inventory is insufficient.

[0003] In view of this, improvements should be made to the existing technology. Summary of the Invention

[0004] The main objective of this invention is to provide a method for producing high-quality ferrovanadium through remelting, which can effectively solve prominent problems such as the inability to produce high-quality ferrovanadium from low-quality ferrovanadium, the inability to promptly convert ferrovanadium fine powder into finished products due to high fine powder content, insufficient ferrovanadium inventory, high production costs of high-quality ferrovanadium, and inflexible production organization of high-quality ferrovanadium.

[0005] According to one aspect of the present invention, a method for producing high-quality ferrovanadium by remelting is provided, comprising the following steps: Determine the grade and type of ferrovanadium raw materials to be recycled and the type of high-quality ferrovanadium to be produced; If the ferrovanadium raw material is low-quality ferrovanadium and its variety is the same as that of high-quality ferrovanadium, then the amount of ingredients added should be adjusted according to the actual content of trace elements in the ferrovanadium raw material and the target content of trace elements in the high-quality ferrovanadium to be produced. If the ferrovanadium raw material is low-quality ferrovanadium and its variety is different from that of high-quality ferrovanadium, then first determine the core control elements and target content benchmarks, and then adjust the amount of ingredients added according to the actual content of trace control elements in the ferrovanadium raw material and the target content of trace control elements in the high-quality ferrovanadium to be produced. If the ferrovanadium raw material is high-quality ferrovanadium, the amount of ferrovanadium raw material to be added is determined according to the element content requirements of the high-quality ferrovanadium to be produced and the element content brought in by the vanadium oxide.

[0006] According to one embodiment of the present invention, the trace control elements include one or more of Al, Mn, P, C, S and Si in ferrovanadium, and the core control elements include Fe and / or V.

[0007] According to one embodiment of the present invention, adjusting the amount of feedstock added based on the actual content of trace elements in the ferrovanadium raw material and the target content of trace elements in the high-quality ferrovanadium to be produced specifically includes: If the actual Al content in the ferrovanadium raw material is too high, and the difference between the actual content and the target content is greater than or equal to 0.5%, then the amount of aluminum added will be reduced by the same amount as the excess Al content in the ferrovanadium raw material. If the content of at least one of the elements Mn, P and Si in the ferrovanadium raw material is too high, first calculate the total corresponding element amount of ferrovanadium to be produced in the furnace, and then reduce the corresponding element amount of vanadium oxide to be added based on the corresponding element amount brought in by the ferrovanadium raw material, and calculate based on 90% of the corresponding elements in vanadium oxide entering the ferrovanadium product. If the C and S content in the ferrovanadium raw material is too high, there is no need to adjust the amount of raw materials added separately. The C and S content can be controlled through the tilting furnace smelting process.

[0008] According to one embodiment of the present invention, when the ferrovanadium raw material is low-quality ferrovanadium and its variety is different from that of the high-quality ferrovanadium to be produced, the method for determining the core control elements and target content benchmarks includes: When the raw material for ferrovanadium is low-quality medium-vanadium ferrovanadium and high-quality high-vanadium ferrovanadium is to be produced, the core control element is Fe, and the target content benchmark is the total amount of Fe that needs to be added to the furnace to produce high-quality high-vanadium ferrovanadium. When the raw material for ferrovanadium is low-quality high-vanadium ferrovanadium and is to be produced as high-quality medium-vanadium ferrovanadium, the core control element is V, and the target content benchmark is the total amount of V that needs to be added to the furnace to produce high-quality medium-vanadium ferrovanadium.

[0009] According to one embodiment of the present invention, when the ferrovanadium raw material is low-quality medium-vanadium ferrovanadium and high-quality high-vanadium ferrovanadium is to be produced, the amount of feed added is adjusted as follows: the total Fe content in the low-quality medium-vanadium ferrovanadium is used to supplement the total Fe content required for the production of high-quality high-vanadium ferrovanadium in the furnace, thereby determining the maximum amount of low-quality medium-vanadium ferrovanadium to be added, without the need to add extra iron filings.

[0010] According to one embodiment of the present invention, when the ferrovanadium raw material is low-quality high-vanadium ferrovanadium and high-quality medium-vanadium ferrovanadium is to be produced, the amount of feed added is adjusted as follows: first, the amount of medium-vanadium ferrovanadium that can be produced is calculated based on the total V content in the low-quality high-vanadium ferrovanadium, and then iron filings of the same weight are added according to the difference in the total amount of ferrovanadium.

[0011] According to one embodiment of the present invention, when the ferrovanadium raw material is high-quality ferrovanadium, the step of determining the amount of ferrovanadium raw material to be added is as follows: S1. Calculate the total amount of Fe, Mn, Si, and P elements allowed for the production of high-quality ferrovanadium in the furnace. S2. Calculate the total amount of Fe, Mn, Si, and P elements introduced by vanadium oxide, etc., and calculate based on the fact that 90% of the corresponding elements in vanadium oxide enter the ferrovanadium product. S3. Calculate the difference between S1 and S2. This difference is brought in by all the high-quality ferrovanadium raw materials. Fe and Mn elements are added to the ferrovanadium product at 100%, and Si and P elements are added to the ferrovanadium product at 90%. This determines the amount of high-quality ferrovanadium raw materials to be added.

[0012] According to one embodiment of the present invention, when the ferrovanadium raw material is in the form of fine powder, the amount added is determined directly according to the corresponding batching adjustment rules and then added to the pre-processing material; when the ferrovanadium raw material is in the form of finished product, it can be directly fed into the furnace or the amount added is determined according to the corresponding batching adjustment rules and then added to the pre-processing material.

[0013] According to one embodiment of the present invention, the method further includes the step of evenly distributing low-quality ferrovanadium to the pre-heat feed of each furnace according to the total amount added, wherein the pre-heat feed includes phase 1 feed and phase 2 feed.

[0014] According to one embodiment of the present invention, when the Al content in the ferrovanadium raw material is too high, the amount of aluminum added during batching is reduced. The reduction in the amount of aluminum added is equal to the amount of excess Al content in the product. The maximum reduction in the amount of aluminum added is to increase the Al reduction coefficient to completely eliminate it.

[0015] According to an embodiment of the present invention, a method for producing high-quality ferrovanadium by remelting can effectively solve prominent problems such as the inability to produce high-quality ferrovanadium from low-quality ferrovanadium, the high rate of ferrovanadium fine powder which cannot be converted into products in a timely manner, insufficient ferrovanadium inventory, high production cost of high-quality ferrovanadium, and inflexible production organization of high-quality ferrovanadium. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some implementation examples of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A process flow diagram of a method for producing high-quality ferrovanadium by remelting is shown according to an exemplary embodiment of the present invention. Detailed Implementation

[0018] The following detailed description of the embodiments is intended to exemplify the principles of the present invention, but should not be construed as limiting the scope of the invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0019] These embodiments are provided to make this disclosure thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] It should be noted that, in the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] It should also be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0022] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0024] like Figure 1 As shown, the present invention provides a method for producing high-quality ferrovanadium by remelting, which includes the following steps: Determine the grade and type of ferrovanadium raw materials to be recycled and the type of high-quality ferrovanadium to be produced; If the ferrovanadium raw material is low-quality ferrovanadium and its variety is the same as that of high-quality ferrovanadium, then the amount of ingredients added should be adjusted according to the actual content of trace elements in the ferrovanadium raw material and the target content of trace elements in the high-quality ferrovanadium to be produced. If the ferrovanadium raw material is low-quality ferrovanadium and its variety is different from that of high-quality ferrovanadium, then first determine the core control elements and target content benchmarks, and then adjust the amount of ingredients added according to the actual content of trace control elements in the ferrovanadium raw material and the target content of trace control elements in the high-quality ferrovanadium to be produced. If the ferrovanadium raw material is high-quality ferrovanadium, the amount of ferrovanadium raw material to be added is determined according to the element content requirements of the high-quality ferrovanadium to be produced and the element content brought in by the vanadium oxide.

[0025] The method for producing high-quality ferrovanadium by remelting according to an embodiment of the present invention can effectively solve prominent problems such as the inability to produce high-quality ferrovanadium from low-quality ferrovanadium, the inability to promptly convert ferrovanadium fine powder into finished products due to high fine powder content, insufficient ferrovanadium inventory, high production cost of high-quality ferrovanadium, and inflexible production organization of high-quality ferrovanadium.

[0026] In some specific embodiments, the trace control elements include one or more of Al, Mn, P, C, S and Si in ferrovanadium, and the core control elements include Fe and / or V.

[0027] Low-quality ferrovanadium (finished product or fine powder) is classified according to factors affecting quality, including unqualified products, grade C products, grade B products, grade A products, and fine powder.

[0028] Both high-quality medium-vanadium ferrophosphate and high-quality high-vanadium ferrophosphate are fine powder.

[0029] Based on the above embodiments, adjusting the amount of feedstock added according to the actual content of trace elements in the ferrovanadium raw material and the target content of trace elements in the high-quality ferrovanadium to be produced specifically includes: If the actual Al content in the ferrovanadium raw material is too high, and the difference between the actual content and the target content is ≥0.5%, then the amount of aluminum added will be reduced by the same amount as the excess Al content in the ferrovanadium raw material. If the content of at least one of the elements Mn, P and Si in the ferrovanadium raw material is too high, first calculate the total corresponding element amount of ferrovanadium to be produced in the furnace, and then reduce the corresponding element amount of vanadium oxide to be added based on the corresponding element amount brought in by the ferrovanadium raw material, and calculate based on 90% of the corresponding elements in vanadium oxide entering the ferrovanadium product. If the C and S content in the ferrovanadium raw material is too high, there is no need to adjust the amount of raw materials added separately. The C and S content can be controlled through the tilting furnace smelting process.

[0030] In some specific embodiments, adjusting the batching parameters according to the classification results includes: when the aluminum content in low-quality ferrovanadium exceeds the allowable range of the target product, the reduction range of the amount of aluminum in the batching is to reduce it by an equal amount of the excess aluminum content until all the aluminum in the low-quality ferrovanadium is removed.

[0031] Based on the above embodiments, when the ferrovanadium raw material is low-quality ferrovanadium and its variety is different from the high-quality ferrovanadium to be produced, the methods for determining the core control elements and target content benchmarks include: When the raw material for ferrovanadium is low-quality medium-vanadium ferrovanadium and high-quality high-vanadium ferrovanadium is to be produced, the core control element is Fe, and the target content benchmark is the total amount of Fe that needs to be added to the furnace to produce high-quality high-vanadium ferrovanadium. When the raw material for ferrovanadium is low-quality high-vanadium ferrovanadium and is to be produced as high-quality medium-vanadium ferrovanadium, the core control element is V, and the target content benchmark is the total amount of V that needs to be added to the furnace to produce high-quality medium-vanadium ferrovanadium.

[0032] In some specific embodiments, when the ferrovanadium raw material is low-quality medium-vanadium ferrovanadium and high-quality high-vanadium ferrovanadium is to be produced, the amount of feed added is adjusted as follows: the total Fe content in the low-quality medium-vanadium ferrovanadium is used to supplement the total Fe content required for the production of high-quality high-vanadium ferrovanadium in the furnace, thus determining the maximum amount of low-quality medium-vanadium ferrovanadium to be added, without the need to add extra iron filings.

[0033] Specifically, if the manganese content in low-quality ferrovanadium is too high, the total manganese content of the ferrovanadium produced in the furnace must be calculated first when batching. The manganese content brought in by the ferrovanadium should be taken into account when batching, and the manganese content brought in by the corresponding vanadium oxide should be reduced. In actual batching, the calculation is based on 90% of the manganese in vanadium oxide entering the ferrovanadium product.

[0034] If the phosphorus content in low-quality ferrovanadium is too high, the total phosphorus content of the ferrovanadium produced in the furnace must be calculated first when batching. The phosphorus content brought in by the ferrovanadium must be taken into account and the corresponding phosphorus content brought in by vanadium oxide must be reduced. In actual batching, the calculation is based on 90% of the phosphorus in vanadium oxide entering the ferrovanadium product.

[0035] If the silicon content in low-quality ferrovanadium is too high, the total silicon content of the ferrovanadium produced in the furnace must be calculated first when batching. The silicon content brought in by the ferrovanadium should be taken into account when batching, and the silicon content brought in by the corresponding vanadium oxide should be reduced. In actual batching, the calculation is based on 90% of the silicon in the vanadium oxide entering the ferrovanadium product.

[0036] Based on the above embodiments, when the ferrovanadium raw material is high-quality ferrovanadium, the steps for determining the amount of ferrovanadium raw material to be added are as follows: S1. Calculate the total amount of Fe, Mn, Si, and P elements allowed for the production of high-quality ferrovanadium in the furnace. S2. Calculate the total amount of Fe, Mn, Si, and P elements introduced by vanadium oxide, etc., and calculate based on the fact that 90% of the corresponding elements in vanadium oxide enter the ferrovanadium product. S3. Calculate the difference between S1 and S2. This difference is brought in by all the high-quality ferrovanadium raw materials. Fe and Mn elements are added to the ferrovanadium product at 100%, and Si and P elements are added to the ferrovanadium product at 90%. This determines the amount of high-quality ferrovanadium raw materials to be added.

[0037] In some specific embodiments, when the ferrovanadium raw material is in the form of fine powder, the amount added is determined directly according to the corresponding batching adjustment rules and then added to the pre-processing material; when the ferrovanadium raw material is in the form of finished product, it can be directly added to the furnace or the amount added is determined according to the corresponding batching adjustment rules and then added to the pre-processing material.

[0038] Based on the above embodiments, the method further includes the step of evenly distributing low-quality ferrovanadium to the initial feed of each furnace according to the total amount added. The initial feed includes Phase 1 materials and Phase 2 materials.

[0039] Based on the above embodiments, when the Al content in the ferrovanadium raw material is too high, the amount of aluminum added during batching is reduced. The reduction in aluminum is equal to the amount of Al content exceeding the limit in the product. The maximum reduction in aluminum is achieved by increasing the Al reduction coefficient to eliminate it completely.

[0040] For example: The Al content in the currently produced ferrovanadium product is required to be ≤1.5%, while the added low-quality ferrovanadium has an Al content of 2.0%. If 2 tons of this low-quality ferrovanadium need to be added, then the amount of aluminum to be added needs to be reduced by 10~40kg. The minimum reduction is: (2.0%-1.5%)*2000=10kg; the maximum reduction is: (2.0%-0%)*2000=40kg.

[0041] This application addresses the problems of low yield, small batch size, low efficiency, and limited production flexibility in remelting low-quality ferrovanadium (finished product or fine powder) and different varieties of high-quality ferrovanadium fine powder to produce high-quality ferrovanadium. It also addresses the issues of insufficient vanadium oxide resources, slow product delivery, and high production costs associated with conventional production methods. The application proposes a method for remelting low-quality ferrovanadium (finished product or fine powder) and different varieties of high-quality ferrovanadium fine powder to produce high-quality ferrovanadium, addressing issues across different types and grades (low to high grade), different varieties (medium to high ferrovanadium, high to medium ferrovanadium), and even within the same variety (medium to medium ferrovanadium, high to high ferrovanadium). Once implemented, this method can effectively solve prominent problems such as the inability to produce high-quality ferrovanadium from low-quality ferrovanadium (finished product or fine powder), high ferrovanadium fine powder yield preventing timely product delivery, insufficient ferrovanadium inventory, high production costs for high-quality ferrovanadium, and inflexible production organization. This technology has a wide range of applications, high production efficiency, flexible production organization, and low production costs, resulting in significant economic and social benefits.

[0042] The above are exemplary embodiments disclosed in this invention. The order of the disclosed embodiments is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. However, it should be noted that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the disclosed embodiments of this invention (including the claims) is limited to these examples. Various changes and modifications can be made without departing from the scope defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of the different aspects of the invention as described above exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A method for producing high-quality ferrovanadium by recycling, characterized by, The method comprises the following steps: determining the grade and variety of the vanadium-iron raw material to be recycled and the variety of the high-quality vanadium-iron to be produced; if the vanadium-iron raw material is low-quality vanadium-iron and the variety thereof is the same as that of the high-quality vanadium-iron, adjusting the adding amount of the burden according to the actual content of the trace regulating elements in the vanadium-iron raw material and the target content of the trace regulating elements in the high-quality vanadium-iron to be produced; if the vanadium-iron raw material is low-quality vanadium-iron and the variety thereof is different from that of the high-quality vanadium-iron, first determining the core regulating elements and the target content benchmark, and then adjusting the adding amount of the burden according to the actual content of the trace regulating elements in the vanadium-iron raw material and the target content of the trace regulating elements in the high-quality vanadium-iron to be produced; if the vanadium-iron raw material is high-quality vanadium-iron, determining the adding amount of the vanadium-iron raw material according to the element content requirement of the high-quality vanadium-iron to be produced and the element content brought by the vanadium oxide.

2. The method of recycling production of high-quality ferrovanadium according to claim 1, characterized in that, The trace regulating elements include one or more of Al, Mn, P, C, S and Si in the vanadium-iron, and the core regulating elements include Fe and / or V.

3. The method of recycling production of high-quality ferrovanadium according to claim 2, characterized in that, Adjusting the adding amount of the burden according to the actual content of the trace regulating elements in the vanadium-iron raw material and the target content of the trace regulating elements in the high-quality vanadium-iron to be produced specifically comprises: if the actual content of Al elements in the vanadium-iron raw material is too high and the difference between the actual content and the target content is greater than or equal to 0.5%, the amount of aluminum burden is reduced by the excess amount of Al elements in the vanadium-iron raw material; if the content of at least one of Mn, P and Si elements in the vanadium-iron raw material is too high, the total corresponding element amount of the vanadium-iron to be produced is first calculated, then the corresponding element amount brought by the vanadium oxide is reduced according to the corresponding element amount brought by the vanadium-iron raw material, and the calculation is performed according to 90% of the corresponding elements in the vanadium oxide entering the vanadium-iron product; if the content of C and S elements in the vanadium-iron raw material is too high, the adding amount of the burden does not need to be adjusted separately, and the C and S elements are controlled through the smelting process of the tilting furnace.

4. The method of recycling production of high-quality ferrovanadium according to claim 2, characterized in that, When the vanadium-iron raw material is low-quality vanadium-iron and the variety thereof is different from that of the high-quality vanadium-iron to be produced, the determination method of the core regulating elements and the target content benchmark comprises: when the vanadium-iron raw material is low-quality medium vanadium-iron and the high-quality high vanadium-iron to be produced, the core regulating element is Fe element, and the target content benchmark is the total Fe amount to be added for producing the high-quality high vanadium-iron; when the vanadium-iron raw material is low-quality high vanadium-iron and the high-quality medium vanadium-iron to be produced, the core regulating element is V element, and the target content benchmark is the total V amount to be added for producing the high-quality medium vanadium-iron.

5. The method of recycling production of high-quality ferrovanadium according to claim 4, characterized by the fact that, When the vanadium-iron raw material is low-quality medium vanadium-iron and the high-quality high vanadium-iron to be produced, the adding amount of the burden is adjusted as follows: the total Fe amount in the low-quality medium vanadium-iron is used to supplement the total Fe amount to be added for producing the high-quality high vanadium-iron, the maximum adding amount of the low-quality medium vanadium-iron is determined, and no additional iron scrap needs to be added.

6. The method of recycling production of high-quality ferrovanadium according to claim 4, characterized in that, When the vanadium-iron raw material is low-quality high vanadium-iron and the high-quality medium vanadium-iron to be produced, the adding amount of the burden is adjusted as follows: the amount of medium vanadium-iron that can be produced is first calculated according to the total V amount in the low-quality high vanadium-iron, and then the same weight of iron scrap is added according to the difference in the total amount of vanadium-iron.

7. The method of recycling production of high-quality ferrovanadium according to claim 1, characterized by the fact that, When the vanadium-iron raw material is high-quality vanadium-iron, the step of determining the adding amount of the vanadium-iron raw material comprises: S1, calculating the total Fe, Mn, Si, P element amount allowed when the furnace is ready to produce high-quality ferrovanadium; S2, calculating the total amount of Fe, Mn, Si, P elements brought in by the vanadium oxide and the like, and calculating according to 90% of the corresponding elements in the vanadium oxide entering the ferrovanadium product; S3, calculating the difference between S1 and S2, which is brought in by the high-quality ferrovanadium raw material in its entirety, wherein Fe and Mn elements enter the ferrovanadium product at 100%, and Si and P elements enter the ferrovanadium product at 90%, thereby determining the addition amount of the high-quality ferrovanadium raw material.

8. The method of recycling production of high-quality ferrovanadium according to any of claims 1-7, characterized in that, When the ferrovanadium raw material is in the form of fine powder, the addition amount is directly determined according to the corresponding batching adjustment rules before being added to the previous material; when the ferrovanadium raw material is in the form of finished product, it can be directly charged into the furnace or added to the previous material after the addition amount is determined according to the corresponding batching adjustment rules.

9. The method of recycling production of high-quality ferrovanadium according to any of claims 1-7, characterized in that, It also includes the step of evenly distributing low-quality ferrovanadium into each furnace of the previous material according to the total addition amount, wherein the previous material includes 1st material and 2nd material.

10. The method of recycling production of high-quality ferrovanadium according to claim 3, characterized by the fact that, When the Al element content in the ferrovanadium raw material is high, the Al content is reduced during batching, and the reduction amount of Al is equivalent to the excess Al content in the product, and the maximum reduction amount of Al content is to increase the reduction Al amount coefficient to the full reduction amount.

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