Smelting process for nickel-containing sponge iron

A technology of sponge iron and processing technology, applied in the field of sponge iron, can solve problems such as environmental pollution, occupying a large vacant space, and failure to recycle and recycle, and achieve the effects of saving precious resources and reducing production costs

Inactive Publication Date: 2016-07-20
HARBIN RUNDE WEIYE TECH DEV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the by-products such as flue ash, lamination, and iron scale produced during the production of stainless steel in my country have been piled up and discarded in large quantities because

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0010] A process for smelting nickel-containing cotton and iron. Its main components include the following components (expressed in wt.%): nickel 2.1-3.2%, chromium 2.4-3%, molybdenum 1.1-1.2%, tungsten 0.85-1.1%, yttrium 0.01~1.1%, silicon 0.35~0.4%, manganese 1~1.2%, sulfur 0.025~0.035%, phosphorus 0.025~0.035%, nickel 1.1~2.2%, chromium 1.1~3%, molybdenum 1.1~1.2%, tungsten 0.85~ 1.1%, yttrium 0.01 to 1.1%, silicon 0.35 to 0.4%, manganese 1 to 1.2%, sulfur 0.025 to 0.035%, and the balance is scrap iron.

[0011] The smelting process of nickel-containing cotton iron of the present invention includes the following steps:

[0012] 1) Take the above-mentioned components as raw materials, mix them with coal coke powder in a weight ratio of 100:30, and then put them into an extruder for extrusion to form a rough billet;

[0013] 2) Put the finished rough billet into a reduction tank, and add a reducing agent that accounts for 10% of the weight of the rough billet. The reducing agent i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a smelting process for nickel-containing sponge iron. The smelting process includes the following steps that (1) raw materials mainly include 2.1wt.%-3.2wt.% of nickel, 2.4wt.%-3wt.% of chrome, 1.1wt.%-1.2wt.% of molybdenum, 0.85wt.%-1.1wt.% of tungsten, 0.01wt.%-1.1wt.% of yttrium, 0.35wt.%-0.4wt.% of silicon, 1wt.%-1.2wt.% of manganese, 0.025wt.%-0.035wt.% of sodium, 0.025wt.%-0.035wt.% of phosphorus, 1.1wt.%-2.2wt.% of silicon, 1.1wt.%-3wt.% of chrome, 1.1wt.%-1.2wt.% of molybdenum, 0.85wt.%-1.1wt.% of potassium, 0.01wt.%-1.1wt.% of calcium, 0.35wt.%-0.4wt.% of copper, 1wt.%-1.2wt.% of zinc, 0.025wt.%-0.035wt.% of chlorine, and the balance waste iron; (2) formed rough blanks are placed into reduction pots; and (3) the reduction pots filled with the rough blanks are brought into a smelting kiln together. According to the melting process for the nickel-containing sponge iron, a large block of meshed primary carbide is made to be subjected to necking and balling by adding rare earth; and through changes of the dimensions, forms and quantities of the primary carbide and secondary carbide, the service life of the nickel-containing sponge iron is prolonged.

Description

1. Technical field [0001] The invention relates to sponge iron in iron and steel smelting, in particular to a nickel-containing sponge iron smelting process. 2. Background technology [0002] Nickel is mainly used in alloys (such as nickel steel and nickel silver) and as catalysts (such as Raney nickel, especially as a catalyst for hydrogenation), which can be used to make currency, etc., and can be plated on other metals to prevent rust. It is mainly used to make stainless steel and other corrosion-resistant alloys, such as nickel steel, nickel-chromium steel and various non-ferrous metal alloys. Copper-nickel alloys with high nickel content are not easy to corrode. It is also used as a hydrogenation catalyst and used in ceramic products, special chemical containers, electronic circuits, glass green and nickel compound preparation, etc. It is an excellent corrosion-resistant material and an important alloying element in alloy steel. Due to the small reserves of nickel in t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C21B13/00
CPCY02P10/20
Inventor 赵磊于广滨关彦齐宋野
Owner HARBIN RUNDE WEIYE TECH DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap