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Crushing method for nitrided ferrovanadium

A technology of ferrovanadium nitride and crushing method, applied in the field of ferroalloy processing, can solve problems such as limited application scope, and achieve the effects of reducing crushing cost, reducing energy consumption and improving production efficiency

Active Publication Date: 2017-12-12
HUNAN ZHONGXIN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the method must be operated under electrolytic conditions, the scope of application of the above-mentioned patent application is very limited.

Method used

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  • Crushing method for nitrided ferrovanadium

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Embodiment 1

[0032] In the acidification pond in the described step a, the pH value is 1.0, and when draining in the described step b, the iron vanadium nitride after the acidification is placed statically on the drying drain net at 0.3, and then the ferrovanadium nitride is dried with hot air, In the step d, the ferrovanadium nitride is classified according to the particle size, and every 50mm is a classification group, and the ferrovanadium nitride greater than 100mm is placed separately. In the step f, the nitrided ferrovanadium after cutting Vanadium iron blocks are placed separately as a classification group according to the particle size, and the particle size value is placed every 3mm. The above method can classify and process the ferrovanadium nitride blocks produced by crushing and cutting during the crushing operation of the ferrovanadium nitride, and can improve the processing efficiency of the ferrovanadium nitride lumps.

Embodiment 2

[0034] The pH value in the acidification pool in the step a is 3.0, and when draining in the step b, the acidified ferrovanadium nitride is placed on the dry drain net for 0.5h, and then the ferrovanadium nitride is dried with hot air , in the step d, the ferrovanadium nitride is classified according to the particle size, and every 50mm is a classification group, and the ferrovanadium nitride greater than 100mm is placed separately. In the step f, the vanadium nitride after cutting According to the size of the iron powder, every 10mm is used as a classification group, and the crushed ferrovanadium nitride block is separated from the ferrovanadium nitride block cut in step e. The difference between this method and the above-mentioned method is only that by comprehensively classifying the crushed vanadium iron blocks and the cut vanadium iron blocks, the work intensity of the classification work of vanadium iron blocks can be reduced, and the nitriding process can be improved. S...

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Abstract

The invention discloses a crushing method for nitrided ferrovanadium. The crushing method for the nitrided ferrovanadium comprises the following steps: a, adding an acid into an acidification pond to perform acidifying and embrittling on the nitrided ferrovanadium to be crushed; b, draining an acid liquid, and drying the acid liquid on the surface of a nitrided ferrovanadium raw material; c, crushing by using a crushing roller; d, screening the crushed nitrided ferrovanadium raw material according to particle sizes; e, performing laser cutting on the nitrided ferrovanadium with the particle sizes of above 100 mm to make the average particle size of the nitrided ferrovanadium less than 100 mm; and f, holding the nitrided ferrovanadium in a classified manner by taking every 10 mm as a classifying grade according to the particle sizes. According to the crushing method for the nitrided ferrovanadium, the overall toughness of the nitrided ferrovanadium is reduced after the nitrided ferrovanadium is acidified, and then the nitrided ferrovanadium is crushed into specified particle sizes; the crushing difficulty of the nitrided ferrovanadium is reduced; the loss of equipment is reduced; the crushing cost of the nitrided ferrovanadium is reduced; and the crushing work production efficiency of the nitrided ferrovanadium is improved.

Description

technical field [0001] The invention relates to the field of iron alloy processing methods, in particular to a method for crushing ferrovanadium nitride. Background technique [0002] Ferrovanadium nitride is a new type of vanadium-nitrogen alloy additive, which belongs to iron alloy, and its performance is better than that of ferrovanadium and vanadium nitride. Under the comprehensive mechanical properties such as ductility and thermal fatigue resistance, the fluctuation value of mechanical properties is smaller than that of other vanadium alloy steels, and the minimum value of mechanical properties is higher. The addition of vanadium-nitrogen alloy saves more than 10% of vanadium, thereby reducing the cost of steel. [0003] Ferroalloys are generally made into powder by mechanical crushing methods, such as various crushers, ball mills and cone mills, and other similar equipment. Their common features are large power consumption and due to noise and a large amount of Dust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04C22C35/00
CPCB22F9/04B22F2009/046C22C35/00
Inventor 张春雨
Owner HUNAN ZHONGXIN NEW MATERIALS TECH
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