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CN-122017177-A - Control method, device, equipment and medium for avoiding vanadium slag loss in vanadium slag iron separation

CN122017177ACN 122017177 ACN122017177 ACN 122017177ACN-122017177-A

Abstract

The invention relates to a control method, a device, equipment and a medium for avoiding vanadium slag loss in vanadium slag iron selection, and relates to the field of vanadium slag iron removal, comprising the steps of obtaining a first sample from an iron product obtained by crushing and selecting vanadium slag in the vanadium slag iron selection, and obtaining the first vanadium slag content of the first sample; the method comprises the steps of ball milling iron selection from vanadium slag iron selection to obtain a second sample and obtain second vanadium slag content of the iron product, obtaining a third sample from iron product obtained by iron selection from the vanadium slag iron selection to obtain third vanadium slag content of the iron product, obtaining total iron slag content based on the first vanadium slag content, the second vanadium slag content and the third vanadium slag content, and if the total iron slag content is more than 30%, adjusting the vanadium slag iron selection process to be less than or equal to 30% of the total iron slag content, otherwise, maintaining the process. According to the control method provided by the invention, through a reasonably designed detection process of the vanadium slag content in the product, the effective monitoring of the vanadium slag content in the product is realized, so that excessive loss of vanadium during iron selection of the vanadium slag is avoided.

Inventors

  • WANG XUELEI
  • DONG WEI
  • XIE QIFA

Assignees

  • 承德燕北冶金材料有限公司

Dates

Publication Date
20260512
Application Date
20260402

Claims (10)

  1. 1. A control method for avoiding vanadium slag loss in vanadium slag iron selection is characterized by comprising the following steps: Crushing vanadium slag in the iron selection of the vanadium slag, obtaining a first sample from the iron product obtained by the iron selection, and obtaining the first vanadium slag content of the first sample; obtaining a second sample from an iron product obtained by ball milling iron selection from vanadium slag, and obtaining the second vanadium slag content of the second sample; Obtaining a third sample from the iron product obtained by iron separation in the iron separation of the vanadium slag, and obtaining the third vanadium slag content of the third sample; obtaining the total iron slag content based on the first vanadium slag content, the second vanadium slag content and the third vanadium slag content; If the total slag content of iron is more than 30%, the process of selecting iron from vanadium slag is adjusted until the total slag content of iron is less than or equal to 30%, otherwise, the process is maintained.
  2. 2. The control method of claim 1, wherein the first sample is obtained using a five-point sampling method.
  3. 3. The control method according to claim 1, wherein the first vanadium slag content is obtained by crushing a first sample to a particle size of equal to or less than A1, and then separating slag from iron to obtain a first iron and a first sub-sample; crushing the first sub-sample until the granularity is less than or equal to A2, and then separating slag from iron to obtain a second iron and a second sub-sample; grinding the second sub-sample until the granularity is less than or equal to A3, and then separating slag from iron to obtain third iron and a third sub-sample; The first vanadium slag content= (mass of the third sub-sample/mass of the first sample) ×100%; preferably, the A1 is a point value selected from 100-110 mm; Preferably, the A2 is a point value selected from 35-40 mm; preferably, the A3 is a point value selected from 0.1-0.15 mm.
  4. 4. The method according to claim 3, wherein the slag-iron separation mode comprises strong magnetic separation; Preferably, the feeding speed in the slag-iron separation is 40-60t/h.
  5. 5. The control method of claim 1, wherein the obtaining of the second vanadium slag content comprises a first screening of the second sample to obtain a first on-screen subsamples and a first undersize subsamples; the second vanadium slag content= (mass of first undersize sample/mass of second sample) ×100%; Preferably, the mesh number of the screen used in the first screening is 110-130 mesh.
  6. 6. The method of claim 1, wherein the obtaining of the third vanadium slag content comprises a second screening of the third sample to obtain a second on-screen subsamples and a second undersize subsamples; Carrying out slag-iron separation on the second undersize sub-sample to obtain a third sample sub-iron and third sample sub-slag; Third vanadium slag content= (mass of third sample sub slag/mass of third sample) ×100%; preferably, the mesh size of the screen used in the second screening is 110-130 mesh.
  7. 7. The control method according to claim 1, wherein the total slag content of iron is calculated as follows: in the total iron slag content ={[M 1 /(M 1 +M 2 +M 3 )]×V 1 }+{[M 2 /(M 1 +M 2 +M 3 )]×V 2 }+{[M 3 /(M 1 +M 2 +M 3 )]×V 3 },, M 1 is the mass of an iron product obtained by crushing and selecting iron, M 2 is the mass of an iron product obtained by ball milling and selecting iron, M 3 is the mass of an iron product obtained by air separation and iron removal, V 1 is the content of first vanadium slag,% >, V 2 is the content of second vanadium slag,% >, and V 3 is the content of third vanadium slag.
  8. 8. A control device for avoiding vanadium slag loss in vanadium slag iron selection, which is characterized by comprising: The first acquisition module is used for obtaining a first sample from an iron product obtained by crushing and selecting iron from vanadium slag in the iron selection of the vanadium slag, and obtaining the first vanadium slag content of the first sample; The second acquisition module is used for obtaining a second sample from an iron product obtained by ball milling and selecting iron from vanadium slag, and obtaining the second vanadium slag content of the second sample; the third acquisition module is used for acquiring a third sample from the iron product obtained by iron separation in the iron separation of the vanadium slag, and acquiring the third vanadium slag content of the third sample; The control module is used for obtaining the total iron content based on the first vanadium slag content, the second vanadium slag content and the third vanadium slag content, and if the total iron content is more than 30%, the vanadium slag iron selecting process is adjusted until the total iron content is less than or equal to 30%, otherwise, the process is maintained.
  9. 9. An electronic device, the electronic device comprising: And a memory communicatively coupled to the at least one processor; Wherein the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the control method of avoiding vanadium slag loss in vanadium slag iron selection of any one of claims 1-7.
  10. 10. A computer storage medium having stored therein computer executable instructions which when executed by a processor implement the method of controlling the vanadium slag iron selection of any one of claims 1-7 to avoid vanadium slag losses.

Description

Control method, device, equipment and medium for avoiding vanadium slag loss in vanadium slag iron separation Technical Field The invention relates to the field of vanadium slag iron removal, in particular to a control method, a device, equipment and a medium for avoiding vanadium slag loss in vanadium slag iron separation. Background At present, the production process of vanadium pentoxide mainly adopts an indirect vanadium extraction method by taking vanadium slag as a raw material, grinding the vanadium slag, selecting iron, adding a sodium salt additive in proportion, performing sodium roasting in a rotary kiln, converting insoluble vanadium compounds into soluble sodium vanadate, and leaching with water to form sodium vanadate solution. After the solution is purified and dephosphorized, sulfuric acid and ammonium sulfate are added to carry out ammonium salt precipitation under the heating condition to produce ammonium polyvanadate, and the ammonium polyvanadate is decomposed, melted and cast into sheet-shaped vanadium pentoxide. The method comprises the steps of a, adding alkali metal salt into vanadium slag, fully and uniformly mixing to obtain a mixture, b, placing the mixture obtained in the step a in a roasting furnace for oxidizing roasting to obtain vanadium slag clinker, c, discharging the roasted vanadium slag clinker, rapidly cooling, soaking in water, d, filtering the mixture obtained in the step c to obtain filtrate, e, removing impurities in the filtrate, f, adjusting the pH value of the filtrate obtained in the step e, adding ammonium salt for precipitating vanadium, filtering to obtain ammonium polyvanadate filter cakes or ammonium metavanadate filter cakes, g, calcining the vanadium precipitation filter cakes obtained in the step f, and obtaining vanadium pentoxide. CN118929751a is a method for preparing vanadium pentoxide by using high chromium vanadium slag. The method comprises the steps of (1) crushing high-chromium vanadium slag, sequentially carrying out magnetic separation iron removal, grinding treatment and air separation impurity removal to obtain refined vanadium slag, (2) mixing sodium salt with the refined vanadium slag obtained in the step (1), then roasting in a rotary kiln to obtain clinker, and (3) grinding the clinker obtained in the step (2) by a wet method, and finally obtaining the vanadium pentoxide after post treatment. However, when the vanadium slag iron selection is carried out currently, the defect that more vanadium slag is carried in an iron product exists, and although the existing scheme can effectively ensure the effect of the vanadium slag iron selection, the defect that excessive vanadium slag is carried in the iron product inevitably exists in the process of the vanadium slag iron selection, so that the vanadium loss is increased and the benefit loss is caused by taking away excessive vanadium slag, and no effective monitoring method exists for the vanadium slag content of the iron product for the vanadium slag iron selection at present. Disclosure of Invention In view of the problems existing in the prior art, the invention aims to provide a control method, a device, equipment and a medium for avoiding vanadium slag loss in vanadium slag iron separation, so as to realize effective monitoring of the vanadium slag content of an iron product obtained by the vanadium slag iron separation, thereby solving the defect of higher vanadium slag loss rate caused by unreasonable monitoring of the vanadium slag content of the iron product obtained by the vanadium slag iron separation. To achieve the purpose, the invention adopts the following technical scheme: in a first aspect, the invention provides a control method for avoiding vanadium slag loss in vanadium slag iron separation, the control method comprising: Crushing vanadium slag in the iron selection of the vanadium slag, obtaining a first sample from the iron product obtained by the iron selection, and obtaining the first vanadium slag content of the first sample; obtaining a second sample from an iron product obtained by ball milling iron selection from vanadium slag, and obtaining the second vanadium slag content of the second sample; Obtaining a third sample from the iron product obtained by iron separation in the iron separation of the vanadium slag, and obtaining the third vanadium slag content of the third sample; obtaining the total iron slag content based on the first vanadium slag content, the second vanadium slag content and the third vanadium slag content; If the total slag content of iron is more than 30%, the process of selecting iron from vanadium slag is adjusted until the total slag content of iron is less than or equal to 30%, otherwise, the process is maintained. According to the control method provided by the invention, through a detection process of the vanadium slag content in a product with reasonable design, the effective monitoring of the vanadium slag content in the product is reali