Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Silicon-manganese coal ash deoxidier for steelmaking and preparation method thereof

A technology of fly ash and deoxidizer, which is applied in the field of steelmaking, can solve the problems of high cost and unsmoothness, and achieve the effect of smooth process, reduced content and lower steelmaking cost

Active Publication Date: 2013-11-06
芜湖县天海耐火炉料有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the deoxidizers used in the domestic industrial steelmaking production process are mainly calcium, aluminum or iron alloys, etc. The deoxidation effect has always reached the level of 60-100PPM, and the effect is average. Observe that there are large bubbles and slag inclusions in the section of the billet, and the cost is high

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Silicon-manganese coal ash deoxidier for steelmaking and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: silicon-manganese fly ash deoxidizer for steelmaking, the parts by weight of its composition raw materials are: quartz sand 100, calcareous shale 12, fly ash 22, fluorite 12, charcoal 4, waste aluminum powder 7, Attapulgite 28, black manganese ore 12.

[0011] The preparation method of the silico-manganese fly ash deoxidizer for steelmaking comprises the following steps: weighing each raw material according to the weight of the constituent raw materials, putting them into a submerged arc furnace for smelting, the smelting temperature is 2100-2500°C, and the smelting time is 2-3 Hours, broken to 70-90 mm, remove impurities, that is the finished product.

[0012] The following is the deoxidation test, the test steel is low carbon steel, used in 2# furnace, 1.36kg / t steel

[0013] Hot metal conditions:

[0014] [S]S% [P]% 0.039-0.032 0.190-0.152

[0015] Deoxygenation result:

[0016] serial number furnace number Addition ...

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 discloses a silicon-manganese coal ash deoxidier for steelmaking and a preparation method of the silicon-manganese coal ash deoxidier. The silicon-manganese coal ash deoxidier comprises the following raw materials in parts by weight: 90 to 110 parts of quartz sand, 10 to 15 parts of calcareous shale, 20 to 25 parts of coal ash, 10 to 15 parts of fluorite, 3 to 5 parts of charcoal, 5 to 8 parts of waste aluminum powder, 25 to 30 parts of attapulgite and 10 to 15 parts of black manganese ore. The silicon-manganese coal ash deoxidier has rationality in formula; and the coal ash, the charcoal and the attapulgite are adopted for serving as the raw materials. The deoxidier has good deoxidizing effect; with the adoption of the deoxidier, the contents of nonmetal impurities in the steel can be reduced, the form of the impurities can be changed, the molten steel can be purified, the liquidity of the molten steel can be improved, and the molten steel continuous casting process is smooth; and the continuous casting water ports are out of nodules, thus the continuous casting can be smoothly carried out, the service performance and the service life of steel can be improved and prolonged, and the cost of steelmaking can be reduced.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a silicon-manganese fly ash deoxidizer for steelmaking and a preparation method thereof. Background technique [0002] At present, the deoxidizers used in the domestic industrial steelmaking production process are mainly calcium, aluminum or iron alloys, etc. The deoxidation effect has always reached the level of 60-100PPM, and the effect is average. It is observed that there are large bubbles and slag inclusions in the section of the slab, and the cost is high. Contents of the invention [0003] The purpose of the present invention is to provide a silicon-manganese fly ash deoxidizer for steelmaking and its preparation method. The formula of the present invention is reasonable, using fly ash, charcoal and attapulgite as raw materials, the deoxidation effect is obvious, and the steel can be quickly deoxidized. Deoxidation treatment can effectively remove inclusions in molt...

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): C21C7/06
Inventor 吴大宏童振兰
Owner 芜湖县天海耐火炉料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com