Molten steel purifying slag agent produced by blast furnace fusion method

A melting method and blast furnace technology, applied in the field of purifiers, can solve the problems of high production costs, achieve the effects of reducing steel production costs, prolonging service life, and saving metal aluminum

Inactive Publication Date: 2010-05-19
于世发
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the commonly used method for refining molten steel is to use precious metals such as magnesium and aluminum for desulfurization and deoxidation. This method has the disadvantage of high production cost

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

Embodiment Construction

[0022] The molten steel slag purification agent produced by the blast furnace melting method is made of the following components and proportions by weight:

[0023] One or a combination of ferrite or bauxite: 350-750

[0024] Calcium carbonate: 490-890

[0025] All iron: 290-630

[0026] Low silicon flux: one or a combination of iron oxide and calcium fluoride, 0.5-10% of the total

[0027] Waste fly ash in industry: 0.5-10% of the total

[0028] Mineralizers: basic oxides magnesium oxide or calcium oxide; acidic oxide metal manganese ores; 0.5-10% of the total

[0029] Filler: Al2O3, insufficient supplementary ingredients; 0.5-10% of the total

[0030] Fuel: coke, S≤0.2%, 340-900Kg / ton slag agent, 320-1700Kg / ton iron

[0031] The preparation method of the molten steel purifying slag agent produced by the blast furnace melting method is:

[0032] 1) Feed according to the above-mentioned composition ratio requirements, and set aside;

[0033] 2) Put the fuel coke into th...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to view more

Abstract

The invention discloses a liquid steel refine process clarifier for ladle and bakie especially a molten steel purifying slag agent, which comprises the following steps: choosing bauxite or alumina, calcium carbonate, full iron, low silicon flux, coal ash of waste and mineralization agent as raw material; igniting with coke in high furnace; burning; adding with batch; repeating; forming circle product; setting melting temperature at 1370-1770 deg.c; taping at the state of fusion; annealing with order advance vessel; cooling with semi-drying method; stewing; bruising; rough destroying; middle destroying; thin destroying. The cost of this slag agent is low, which saves a good deal of aluminum magnesium metal.

Description

technical field [0001] The invention relates to a cleaning agent for molten steel refining treatment of ladles and tundishes, in particular to a molten steel cleaning slag agent produced by a blast furnace melting method. Background technique [0002] In the prior art, the common method for refining molten steel is to use precious metals such as magnesium and aluminum for desulfurization and deoxidation. This method has the disadvantage of high production cost. Contents of the invention [0003] The purpose of the present invention is to provide a molten steel purification slag agent produced by the blast furnace melting method. The slag agent is low in production cost, has good effects on desulfurization, deoxidation, degassing, and removal of impurities in molten steel, and saves a large amount of metal magnesium and aluminum. High-silicon cast iron and ferrosilicon alloy by-products can be produced during the smelting process. [0004] In order to achieve the above obj...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/076C21B5/04
CPCY02P10/20
Inventor 于世发
Owner 于世发
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