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

Low-silicon-aluminum-killed-steel-casting-slag-based refining agent and preparation method thereof

A low-silicon aluminum-killed steel and casting slag technology, applied in the direction of improving process efficiency, can solve the problems of accelerating desulfurization speed, shortening the formation time of reducing white slag, and fast slag melting in LF furnace, so as to reduce the process Consumption, increasing effective refining time, reducing environmental pollution and the effect of site occupancy

Inactive Publication Date: 2014-05-14
武汉钢铁有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the current problem that the continuous casting slag of low-carbon, low-silicon, aluminum-killed steel is regarded as waste, and to provide a method that can comprehensively utilize the continuous casting slag of low-carbon, low-silicon, aluminum-killed steel. , and by using the refining agent made from the continuous casting slag of low-carbon, low-silicon and aluminum-killed steel in the LF furnace, the slagging speed of the LF furnace is fast, and the time for the formation of reducing white slag can be shortened and desulfurization can be accelerated Speed, reduce environmental pollution, reduce production cost of low-silicon-aluminum killed steel casting slag-based refining agent and preparation method thereof

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
  • Low-silicon-aluminum-killed-steel-casting-slag-based refining agent and preparation method thereof
  • Low-silicon-aluminum-killed-steel-casting-slag-based refining agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Low-silicon aluminum-killed steel casting slag-based refining agent, its components and weight percentages are: 89% of low-silicon aluminum-killed steel casting slag with a particle size of ≤5mm, 5% of fluorite, and 6% of aluminum powder with a purity of 99% , containing SiO 2 ≤5% glass water accounts for 3% of the total weight of the above raw materials.

[0026] A method for preparing a low-silicon aluminum killed steel casting slag-based refining agent, the steps of which are:

[0027] 1) Pulverize the low-silicon-aluminum killed steel casting slag, and control its particle size to ≤5mm;

[0028] 2) Mix 89% of low-silicon aluminum killed steel casting slag with a particle size of ≤5mm, 5% of fluorite, and 6% of aluminum powder with a purity of 99% and stir evenly;

[0029] 3) Add SiO-containing 3% of the total weight of the above-mentioned raw materials in the above-mentioned mixed raw materials 2 ≤5% glass water and stir well;

[0030] 4) Ball making, the diamet...

Embodiment 2

[0034] Low-silicon aluminum-killed steel casting slag-based refining agent, its components and weight percentages are: 86% of low-silicon aluminum-killed steel casting slag with a particle size of ≤5mm, 6% of fluorite, and 8% of aluminum powder with a purity of 99.5% , the bittern containing magnesium chloride accounts for 2% of the above-mentioned raw material gross weight.

[0035] A method for preparing a low-silicon aluminum killed steel casting slag-based refining agent, the steps of which are:

[0036] 1) Pulverize the low-silicon-aluminum killed steel casting slag, and control its particle size to ≤5mm;

[0037] 2) Mix 86% of low-silicon aluminum-killed steel casting slag with a particle size of ≤5mm, 6% of fluorite, and 8% of aluminum powder with a purity of 99.5% and stir evenly;

[0038] 3) Add magnesium chloride-containing brine accounting for 2% of the total weight of the above-mentioned raw materials into the above-mentioned mixed raw materials and stir evenly; ...

Embodiment 3

[0043] Low-silicon aluminum-killed steel casting slag-based refining agent, its components and weight percentages are: 96% of low-silicon aluminum-killed steel casting slag with a particle size of ≤5mm, 1% of fluorite, and 3% of aluminum powder with a purity of 99.5% , the brine containing magnesium chloride accounts for 4% of the above-mentioned raw material gross weight.

[0044] A method for preparing a low-silicon aluminum killed steel casting slag-based refining agent, the steps of which are:

[0045] 1) Pulverize the low-silicon-aluminum killed steel casting slag, and control its particle size to ≤5mm;

[0046] 2) Mix 96% of low-silicon aluminum-killed steel casting slag with a particle size of ≤5mm, 1% of fluorite, and 3% of aluminum powder with a purity of 99.5% and stir evenly;

[0047] 3) adding magnesium chloride-containing brine accounting for 4% of the total weight of the above-mentioned raw materials into the above-mentioned mixed raw materials and stirring even...

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
particle sizeaaaaaaaaaa
purityaaaaaaaaaa
purityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a product obtained by comprehensively utilizing casting slag and a preparation method for the product. The product comprises the following components in percentage by weight: 86 to 96 percent of low-silicon-aluminum killed steel casting slag with the particle size of less than or equal to 5mm, 1 to 6 percent of fluorite, 3 to 8 percent of aluminum powder, and an inorganic binder which accounts for 2 to 4 percent of the total weight of the raw materials. The preparation method for the product comprises the following steps of: crushing the low-silicon-aluminum killed steel casting slag; uniformly mixing the materials; adding the inorganic binder and stirring uniformly; pelletizing and controlling the alkalinity of pellets to be 5.0 to 6.0; roasting; and taking out of a furnace for later use. The invention provides a low-silicon-aluminum-killed-steel-casting-slag-based refining agent and a preparation method thereof. The continuous casting slag of low-carbon low-silicon-aluminum killed steel can be comprehensively utilized, and the refining agent prepared from the continuous casting slag of the low-carbon low-silicon-aluminum killed steel is applied to a ladle furnace (LF), so that the slagging speed of the LF is high, the time of the formation of reducing white slag can be shortened, the desulfurization rate can be increased, the environmental pollution is reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to a product for comprehensive utilization of casting slag and a preparation method thereof, in particular to a low-silicon aluminum killed steel casting slag-based refining agent and a preparation method thereof. Background technique [0002] At present, the continuous casting slag of low-carbon, low-silicon, aluminum-killed steel is treated as waste, and has not been used for comprehensive utilization. The waste not only occupies land, but also pollutes the environment and increases production costs. [0003] Under the advocacy of the national environmental pollution control policy, the applicant found that it has the characteristics of high alkalinity, low oxidation, low melting point and pre-melting after analyzing the continuous casting residue of low-carbon and low-silicon aluminum-killed steel. . According to these characteristics, the analysis and research show that the characteristics of low melting point and high sulfur...

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): C21C7/04C21C7/076
CPCY02P10/20
Inventor 吴建鹏刘先同何金平金奎张超沈继胜陶勇刘中桂拥
Owner 武汉钢铁有限公司
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