A kind of crushing method of ferrovanadium nitride

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, energy consumption, and crushing difficulty

Active Publication Date: 2019-06-04
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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  • A kind of crushing method of ferrovanadium nitride
  • A kind of crushing method of ferrovanadium nitride

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The pH value in the acidification bath in the step a is 1.0, and when draining in the step b, the acidified iron vanadium nitride is placed on a dry bitumen for 0.3, and then the iron vanadium nitride is dried by hot air. In the step d, the ferro-vanadium nitride is classified according to the particle size, and each 50mm is a classification group, and the ferro-vanadium nitride that has experienced more than 100mm is placed separately. In the step f, the nitriding after the cutting The vanadium iron block is placed separately as a classification group according to the particle size and the particle size value every 3mm. During the crushing operation of the vanadium iron nitride iron, the above method can be classified and processed according to the massive iron vanadium nitride produced by the crushing and cutting, and can improve the processing efficiency of the vanadium iron nitride block.

Embodiment 2

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

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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 ferroalloy processing methods, in particular to a crushing method for ferro-vanadium nitride. Background technique [0002] Ferro-vanadium nitride is a new type of vanadium-nitrogen alloy additive. It is an iron alloy and has better performance than ferro-vanadium and vanadium nitride. In the actual application of ferro-vanadium nitride, a large number of actual application data show that it can achieve the same strength, toughness, With comprehensive mechanical properties such as ductility and thermal fatigue resistance, the mechanical properties fluctuates less than other vanadium alloy steels, and the minimum mechanical properties are higher. The addition of vanadium iron can save 30-40% of vanadium than other vanadium iron. Adding vanadium-nitrogen alloy saves vanadium by more than 10%, thereby reducing the cost of steel. [0003] Ferroalloys are generally made into powder by mechanical crushing methods, such as vari...

Claims

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Application Information

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Patent Type & Authority Patents(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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