A double pusher kiln for producing ferrovanadium nitride

A double-push kiln, iron vanadium nitride technology, applied in the direction of furnace, furnace type, lighting and heating equipment, etc., can solve problems such as safety accidents, achieve extended service life, high pass rate and good performance consistency, design reasonable effect

Active Publication Date: 2019-06-04
HUNAN ZHONGXIN NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above two double pusher kilns will produce a small amount of carbon monoxide and basic oxides during nitriding work, and the external discharge may easily cause safety accidents

Method used

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  • A double pusher kiln for producing ferrovanadium nitride
  • A double pusher kiln for producing ferrovanadium nitride
  • A double pusher kiln for producing ferrovanadium nitride

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] like figure 1 As shown, a double pusher kiln for the production of ferrovanadium nitride, including sequentially connected drainage and primary reduction section, row K + 、Na + And the secondary reduction section, constant temperature and nitriding section and cooling section, the furnace body of the drainage and primary reduction section is a rectangular structure formed by the outer insulation layer (1) and the inner lining (2), and the bottom of the furnace body is set There is a drainage area (3); the inner lining (2) is composed of a stainless steel kiln wall (2.1), a kiln arch beam (...

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Abstract

The invention relates to a double-pushed-slab kiln for producing nitrided ferrovanadium. The double-pushed-slab kiln comprises a water discharging and primary reducing section, a K<+>and Na<+>discharging and secondary reducing section, a constant temperature and nitriding section and a cooling section, all of which are sequentially connected. The water discharging and primary reducing section is divided into four temperature zones from T1 to T4. The K<+> and Na<+>discharging and secondary reducing section is divided into six temperature zones from T5 to T10. The constant temperature and nitriding section is divided into ten temperature zones from T11 to T20. The cooling section is divided into a nitrogen natural cooling area and a forced cooling area in which indirect water cooling and nitrogen cooling are combined. The double-pushed-slab kiln is high in using safety and reliability, slab arching is avoided, and energy is saved.

Description

technical field [0001] The invention relates to equipment for producing ferro-vanadium nitride, in particular to a double pusher kiln for producing ferro-vanadium nitride, which is used for continuous firing of vanadium-nitrogen alloys. Background technique [0002] Ferrovanadium nitride is a new type of alloy additive. Its performance is superior to that of ferrovanadium and vanadium nitride. It can be widely used in high-strength spiral steel bar, high-strength pipeline steel, high-strength section steel ((H-beam, I-beam, groove Steel, angle steel), thin slab continuous casting and rolling high-strength steel strip, non-quenched and tempered steel, high-speed tool steel and other products. Especially in high-strength low-alloy steel, ferrovanadium nitride is more effective than vanadium nitride and ferrovanadium To strengthen and refine grains, save vanadium-containing raw materials, thereby reducing steelmaking production costs. [0003] At present, metallurgists at home...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B9/02F27B9/12F27B9/34F27B9/40
CPCF27B9/021F27B9/12F27B9/34F27B9/40F27B2009/124
Inventor 张春雨
Owner HUNAN ZHONGXIN NEW MATERIALS TECH
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