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Method and device for continuously preparing vanadium-nitrogen alloy

A vanadium-nitrogen alloy and equipment technology, which is applied in the field of continuous preparation of vanadium-nitrogen alloy, can solve the problems of difficulty in improving production efficiency, high output and high cost, and achieve the effects of improved production efficiency, short production process and fast maintenance

Active Publication Date: 2014-08-27
SICHUAN ZHANXIANG SPECIAL ALLOY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the production of vanadium-nitrogen alloys is currently limited by technology and equipment, and its output and cost have always been relatively high. limited, its production efficiency is difficult to improve

Method used

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  • Method and device for continuously preparing vanadium-nitrogen alloy

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Embodiment 1

[0031] A method for continuously preparing vanadium-nitrogen alloys, comprising the following steps:

[0032] S1, ingredients: take the following raw materials by weight, set aside:

[0033] Vanadium pentoxide powder 100;

[0034] graphite powder 28;

[0035] Nitriding accelerator 5;

[0036] Sodium silicate aqueous solution 10;

[0037] Iron powder 1.5;

[0038] Described nitriding accelerator is urea, and the concentration of described sodium silicate aqueous solution is 15%;

[0039] S2. Mixing and billet making: Put the above raw materials into a blender and mix them evenly, then put them into a pair of roller compaction equipment, press the materials into a flat spherical shape, place them in a ventilated place to dry naturally for three days, and dry until the flat spherical materials contain The water content is less than 6%;

[0040] S3. Feeding: put the oblate material with a moisture content of less than 6% in the hopper, and use the lifting device to transport...

Embodiment 2

[0047] A method for continuously preparing vanadium-nitrogen alloys, comprising the following steps:

[0048] S1, ingredients: take the following raw materials by weight, set aside:

[0049] Vanadium pentoxide powder 100;

[0050] graphite powder 25;

[0051] Nitriding accelerator 4;

[0052] Sodium silicate aqueous solution 12;

[0053] iron powder 1;

[0054] Described nitriding accelerator is melamine, and the concentration of described sodium silicate aqueous solution is 18%;

[0055] S2. Mixing and billet making: Put the above raw materials into a blender and mix them evenly, then put them into a pair of roller compaction equipment, press the materials into a flat spherical shape, place them in a ventilated place to dry naturally for three days, and dry until the flat spherical materials contain The water content is less than 6%;

[0056] S3. Feeding: put the oblate material with a moisture content of less than 6% in the hopper, and use the lifting device to transpo...

Embodiment 3

[0063] A method for continuously preparing vanadium-nitrogen alloys, comprising the following steps:

[0064] S1, ingredients: take the following raw materials by weight, set aside:

[0065] Vanadium pentoxide powder 100;

[0066] graphite powder 35;

[0067] Nitriding accelerator 6;

[0068] Sodium silicate aqueous solution 8;

[0069] iron powder 2;

[0070] The nitriding accelerator is a mixture of urea and melamine, and the weight ratio between the two can be any value; the concentration of the sodium silicate aqueous solution is 20%;

[0071] S2. Mixing and billet making: Put the above raw materials into a blender and mix them evenly, then put them into a pair of roller compaction equipment, press the materials into a flat spherical shape, place them in a ventilated place to dry naturally for three days, and dry until the flat spherical materials contain The water content is less than 6%;

[0072] S3. Feeding: put the oblate material with a moisture content of less ...

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Abstract

The invention discloses a method for continuously preparing vanadium-nitrogen alloy. The method includes the first step of preparation, the second step of blending and blank manufacturing, the third step of adding, the fourth step of preheating and prereduction, the fifth step of carbonization and nitridation sintering, and the sixth step of discharging. A device for preparing vanadium-nitrogen alloy according to the method comprises a vertical boiler, a top feeding bin (1) and a continuous automatic discharging device (2), wherein the vertical boiler is composed of a preheating section (4), a calcination section (4) and a cooling section (5); the lower end of the vertical boiler is connected with the continuous automatic discharging device (2) through a pipeline; the tail end of the continuous automatic discharging device is connected with a finished product trolley (20) through a discharge pipe (18); the bottom of the vertical boiler is provided with a nitrogen inlet (21). The method has the advantages that the process and the device are compact, the production process is short, electric energy is saved, little investment is required, yield is high, continuous production is really achieved, and the industrialized and scale production requirement is met.

Description

technical field [0001] The invention relates to the technical field of vanadium-nitrogen alloy preparation, in particular to a method and equipment for continuously preparing vanadium-nitrogen alloy. Background technique [0002] Vanadium-nitrogen alloy is a new type of high-quality steel-making additive that can replace ferrovanadium for the production of micro-alloyed steel. The addition of vanadium nitride to steel can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, and make the steel have good weldability. When the same strength is achieved, the addition of vanadium nitride saves 30-40% of the amount of vanadium added, thereby reducing the cost. [0003] However, the production of vanadium-nitrogen alloys is currently limited by technology and equipment, and its output and cost have always been relatively high. limited, it is difficult to improve its production efficiency. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C22C35/00C22B5/10
Inventor 张平俊张元春刘传高殷永祥
Owner SICHUAN ZHANXIANG SPECIAL ALLOY TECH
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