CN113621870A - Application and application method of vanadium-containing cold material - Google Patents
Application and application method of vanadium-containing cold material Download PDFInfo
- Publication number
- CN113621870A CN113621870A CN202110772670.5A CN202110772670A CN113621870A CN 113621870 A CN113621870 A CN 113621870A CN 202110772670 A CN202110772670 A CN 202110772670A CN 113621870 A CN113621870 A CN 113621870A
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- Prior art keywords
- vanadium
- containing cold
- iron
- percent
- equal
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- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 75
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229910052742 iron Inorganic materials 0.000 claims abstract description 42
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000628 Ferrovanadium Inorganic materials 0.000 claims abstract description 26
- 238000003723 Smelting Methods 0.000 claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims abstract description 11
- 244000046052 Phaseolus vulgaris Species 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 9
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 241000950638 Symphysodon discus Species 0.000 description 4
- HOQADATXFBOEGG-UHFFFAOYSA-N isofenphos Chemical compound CCOP(=S)(NC(C)C)OC1=CC=CC=C1C(=O)OC(C)C HOQADATXFBOEGG-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
- C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
An application method of vanadium-containing cold charge comprises the following steps: s1: roasting and crushing the vanadium-containing cold charge; s2, sampling and testing the vanadium-containing cold charge obtained in the step 1, carrying out accounting according to the vanadium content, and supplementing aluminum particles and bean iron according to the proportioning coefficient of 1.0-1.1, wherein the aluminum particles comprise the following components in parts by weight: more than or equal to 99 percent of Al, less than or equal to 0.080 percent of Si, and less than or equal to 0.2 percent of Fe; the bean iron comprises more than or equal to 95 percent of screened component Fe and less than or equal to 5 percent of residual vanadium slag by weight; and S3, taking the vanadium-containing cold material obtained in the step 2 as a ferrovanadium smelting raw material to carry out ferrovanadium smelting. The method effectively reduces the occupation of vanadium resources, improves the vanadium recovery rate in the ferrovanadium alloy smelting process, reduces the production cost, is easy to realize industrial production, and has important significance for improving the market competitiveness of ferrovanadium.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to application and an application method of a vanadium-containing cold material.
Background
The ferrovanadium alloy can generate vanadium-containing cold materials in different forms in the smelting and slagging-off processes, one is that slag liquid violently reacts in the smelting process to cause splashing, and vanadium pentoxide which has not reacted is sprayed to refractory materials at the edge of a furnace body to be accumulated into blocks; one is a mixture of refractory and iron formed by the slight burning loss and falling off of the refractory at the edge of the discus in the slag skimming process, which is commonly called as iron-sticking refractory; the other is a mixture of slag and iron generated by the sudden temperature drop at the center and the edge of the discus, which is commonly called slag inclusion iron. The vanadium-containing cold material generated in the three conditions contains 10-30% of vanadium on average, and occupies a large amount of vanadium resources.
Disclosure of Invention
Based on the reasons, the method for recycling the vanadium-containing cold charge is developed by analyzing and sampling the three vanadium-containing cold charge forms, and vanadium in the vanadium-containing cold charge is separated and converted into qualified ferrovanadium, so that the problem that the vanadium-containing cold charge occupies vanadium resources is fundamentally solved, and the method is of great importance for improving the vanadium recovery rate of ferrovanadium alloy.
The vanadium-containing cold material comprises the following components: the vanadium-containing splashing material, and/or slag-contained iron, and/or sticky iron refractory material.
The vanadium-containing splashing material comprises the following components: the vanadium-containing material splashed to the outside of a reaction zone in the process of smelting violent reaction.
The iron-bonded refractory material: the iron-resistant material is a mixture of the iron and the refractory material formed by the slight burning loss and falling off of the edge of the discus in the slag skimming process.
The slag inclusion iron: it refers to the slag-iron mixture generated by the sudden temperature drop at the center and the edge of the discus.
The invention provides a new application of a vanadium-containing cold material, which comprises the following steps: the application of the vanadium-containing cold charge in ferrovanadium smelting.
The invention provides a specific application method of a vanadium-containing cold material.
The application method of the vanadium-containing cold material is characterized by comprising the following steps:
s1: roasting and crushing the vanadium-containing cold charge;
s2, sampling and testing the vanadium-containing cold charge obtained in the step 1, carrying out accounting according to the vanadium content, and supplementing aluminum particles and bean iron according to the proportioning coefficient of 0.8-1.2, wherein the aluminum particles comprise the following components in parts by weight: more than or equal to 99 percent of Al, less than or equal to 0.080 percent of Si, and less than or equal to 0.2 percent of Fe; the bean iron comprises more than or equal to 95 percent of screened component Fe and less than or equal to 5 percent of residual vanadium slag by weight;
and S3, taking the vanadium-containing cold material obtained in the step 2 as a ferrovanadium smelting raw material to carry out ferrovanadium smelting.
Further, the baking in the step 1 is carried out at the baking temperature of 450-650 ℃ for not less than 3 hours.
Further, the vanadium-containing cold material in the step 1 contains three materials of vanadium-containing splashing material, slag-contained iron and sticky iron resistant material, and the proportion of the vanadium-containing splashing material, slag-contained iron and sticky iron resistant material is (1-3): (1-3): 1.
further, in the step 1, the material is crushed to reach a granularity of less than or equal to 5 mm.
Further, in the ferrovanadium smelting in the step 3, the vanadium-containing cold charge and the ferrovanadium smelting material are added into a charging bucket together for smelting.
In the application method step 1 of the vanadium-containing cold material, the vanadium-containing splashing material, slag-containing iron and sticky iron resistant material are roasted, mixed and crushed, namely, the vanadium-containing splashing material, slag-containing iron and sticky iron resistant material are respectively roasted, then the three materials are mixed, and then the mixed materials are crushed.
The proportioning coefficient in step 2 of the invention means that vanadium pentoxide and aluminum particles are subjected to chemical reaction, and X kilograms of vanadium pentoxide and Y kilograms of aluminum are needed for reducing X kilograms of vanadium pentoxide according to theoretical chemical reaction calculation. However, in the industrial production, aluminum is intentionally used in an excess amount of a certain percentage in consideration of aluminum burnout and relatively sufficient reaction. The percentage of this excess is the proportioning factor.
The bean iron in step 2 of the invention: and (3) crushing and grinding bean-shaped iron particles remained in the vanadium slag generated in the vanadium extraction and steelmaking process, and screening out the crushed and ground iron particles to obtain the bean iron. The bean iron is used for smelting ferrovanadium alloy and provides iron elements for the ferrovanadium alloy.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. the invention avoids unqualified products or vanadium-containing resource waste caused by blind addition of cold materials in the ferrovanadium smelting process.
2. According to the invention, the smelting reaction is ensured to be uniformly carried out by optimizing the cold material processing mode and adjusting the reasonable proportion, so that the vanadium iron alloy has uniform components and the product quality is improved.
3. The method effectively reduces the occupation of vanadium resources, improves the vanadium recovery rate in the ferrovanadium alloy smelting process, reduces the production cost, is easy to realize industrial production, and has important significance for improving the market competitiveness of ferrovanadium.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
(1) The collected vanadium-containing splashing material, slag-containing iron and sticky iron refractory material are roasted by using the conventional ladle roaster, the roasting temperature and the roasting time are shown in the table 1, and the material is stirred for 2 hours to ensure complete drying of the material. Roasting various vanadium-containing cold materials, crushing the vanadium-containing cold materials for one time, mixing the vanadium-containing cold materials to obtain a mixture with the granularity of about 100 x 100mm, wherein the mixing ratio is shown in table 1, grinding the materials by using a small ball mill, processing the materials by using the ball mill for 3 hours, and feeding 300 kg each time, wherein the granularity of the ground materials is shown in table 1.
(2) Sampling and testing the materials, carrying out accounting according to the vanadium content, supplementing the aluminum grain and bean iron input amount according to the proportioning coefficient, wherein the proportioning coefficient is shown in table 1, and the components and the weight percentage content of the aluminum grain and the bean iron are shown in table 2.
(3) Adding the vanadium-containing material obtained in the step into a charging bucket along with other materials for smelting ferrovanadium, wherein each bucket is 80 kg, the voltage is 139V, the current is 4300A, and the furnace charge is ignited by an electrode and then is powered off. And after the materials are fully reacted, carrying out secondary power transmission with the voltage of 160V and the current of 7900A, and continuing to electrify for 3 minutes to ensure that the temperature of the slag liquid is continuously increased so as to continuously react the residual materials. And stopping power and cooling when the slag sample reaches the index range.
Examples 1 to 5 by adding a vanadium-containing cold charge to a ferrovanadium smelting material, the increase of the qualified ferrovanadium obtained by ferrovanadium smelting is shown in table 3, and the recovery rate of the vanadium-containing cold charge is shown in table 3.
TABLE 1
TABLE 2
TABLE 3
The lean slag in table 3: various raw materials for smelting ferrovanadium alloy are placed in an electric arc furnace, furnace charge is ignited by electrodes, the furnace charge is converted into liquid, added iron particles are melted into molten iron and directly subside to the furnace bottom, other materials are melted to form a liquid slag pool, chemical reaction is carried out in the slag pool, vanadium element is reduced and subsided to the furnace bottom to form ferrovanadium alloy, and the index of the chemical reaction is that the less vanadium element is remained in the liquid slag pool, the better. And reducing and settling a large amount of vanadium elements in the slag pool after full reaction, wherein the slag with a small amount of residual vanadium elements is lean slag.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (6)
1. The application of the vanadium-containing cold material is characterized in that the vanadium-containing cold material is applied to ferrovanadium smelting.
2. The application method of the vanadium-containing cold material is characterized by comprising the following steps:
s1: roasting and crushing the vanadium-containing cold charge;
s2, sampling and testing the vanadium-containing cold charge obtained in the step 1, carrying out accounting according to the vanadium content, and supplementing aluminum particles and bean iron according to the proportioning coefficient of 1.0-1.1, wherein the aluminum particles comprise the following components in parts by weight: more than or equal to 99 percent of Al, less than or equal to 0.080 percent of Si, and less than or equal to 0.2 percent of Fe; the bean iron comprises more than or equal to 95 percent of screened component Fe and less than or equal to 5 percent of residual vanadium slag by weight;
and S3, taking the vanadium-containing cold material obtained in the step 2 as a ferrovanadium smelting raw material to carry out ferrovanadium smelting.
3. The application method of the cold burden containing vanadium according to claim 2, characterized in that the baking in step 1 is carried out at a baking temperature of 450-650 ℃ for a baking time of not less than 3 hours.
4. The application method of the vanadium-containing cold material according to claim 2, characterized in that the vanadium-containing cold material in the step 1 comprises three materials of vanadium-containing splashing material, slag-containing iron and sticky iron resistant material, and the ratio of the three materials of the vanadium-containing splashing material, slag-containing iron and sticky iron resistant material is (1-3) by weight: (1-3): 1.
5. the method for applying the vanadium-containing cold burden as claimed in claim 2, wherein the crushing in step 1 is carried out to obtain a particle size of 5mm or less after the crushing.
6. The method for using vanadium-containing cold burden as claimed in claim 2, wherein in the vanadium iron smelting in step 3, the vanadium-containing cold burden is added into a charging bucket together with the vanadium iron smelting material for smelting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110772670.5A CN113621870A (en) | 2021-07-08 | 2021-07-08 | Application and application method of vanadium-containing cold material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110772670.5A CN113621870A (en) | 2021-07-08 | 2021-07-08 | Application and application method of vanadium-containing cold material |
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| Publication Number | Publication Date |
|---|---|
| CN113621870A true CN113621870A (en) | 2021-11-09 |
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| CN202110772670.5A Pending CN113621870A (en) | 2021-07-08 | 2021-07-08 | Application and application method of vanadium-containing cold material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030065204A (en) * | 2002-01-31 | 2003-08-06 | 한국지질자원연구원 | Recycling Method for Recovery of Vanadium from Wastes Containing Vanadium |
| CN105886787A (en) * | 2016-05-13 | 2016-08-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recycling vanadium from vanadium-containing corundum slags |
| CN109852821A (en) * | 2019-03-05 | 2019-06-07 | 攀钢冶金材料有限责任公司 | A kind of processing method of ferrovanadium dregs |
| CN110408779A (en) * | 2019-07-25 | 2019-11-05 | 河钢股份有限公司承德分公司 | A method of the resource comprehensive utilization of solid waste containing vanadium utilizes |
-
2021
- 2021-07-08 CN CN202110772670.5A patent/CN113621870A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030065204A (en) * | 2002-01-31 | 2003-08-06 | 한국지질자원연구원 | Recycling Method for Recovery of Vanadium from Wastes Containing Vanadium |
| CN105886787A (en) * | 2016-05-13 | 2016-08-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recycling vanadium from vanadium-containing corundum slags |
| CN109852821A (en) * | 2019-03-05 | 2019-06-07 | 攀钢冶金材料有限责任公司 | A kind of processing method of ferrovanadium dregs |
| CN110408779A (en) * | 2019-07-25 | 2019-11-05 | 河钢股份有限公司承德分公司 | A method of the resource comprehensive utilization of solid waste containing vanadium utilizes |
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Application publication date: 20211109 |
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