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

Optimized process for processing steel slag by magnetic separation

A process and technology of steel slag, which is applied in the field of optimization of magnetic separation processing steel slag, can solve the problems of polluting the environment, difficulty in recycling blast furnaces, and large grain steel, so as to improve the utilization rate, improve the comprehensive utilization rate, and reduce environmental pollution. Effect

Active Publication Date: 2010-12-29
鞍钢绿色资源科技有限公司
View PDF0 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The granular steel produced has a particle size of 10-50 mm and an iron content of 60% to 65%. Because of the large fluctuations in alkalinity, it is difficult to return to the blast furnace for reuse, and a large number of granular steel is stockpiled, polluting the environment

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
  • Optimized process for processing steel slag by magnetic separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] An optimized process for magnetic separation processing of steel slag. The process uses hot stuffy steel slag as raw material, and obtains slag steel, magnetic separation powder and converter tailing slag powder after crushing, screening, magnetic separation and rod milling. The process includes the following steps:

[0017] 1) The molten steel slag with a particle size of 0-200mm (of which more than 90% of 0-60mm) has been heat-stuffed is transported to the 1# vibrating screen with an aperture of 80mm by 1# vibrating feeder and 1# belt conveyor For screening, the material on the screen is transported to 1# electromagnetic self-unloading iron remover and 2# electromagnetic self-unloading iron remover through 3# belt conveyor for iron removal, and the steel slag after iron removal is sent to hydraulic jaw crusher for crushing. Temporarily drop the 80-200mm large...

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
Login to View More

Abstract

The invention relates to an optimized process for processing steel slag by magnetic separation, which is characterized by comprising the following steps: (1) screening steel slag by using a No.1 vibrating screen, separating out the steel slag and slag steel by using a No.1 magnetic separator to separate the oversize material, feeding the slag steel to a slag steel tank, and feeding the steel slagto a jaw crusher; (2) feeding the screen underflow of the No.1 vibrating screen and the discharge of the jaw crusher to a No.2 vibrating screen together, separating the oversize material by using a No.2 magnetic separator, feeding the separated slag steel to a rod mill, and stripping steel slag on the slag steel by the vibration effect of the rod mill; (3) feeding the steel slag separated out by the No.2 magnetic separator to a No.3 vibrating screen, feeding the oversize material to a large-size tailing storeroom, and feeding the screen underflow to a medium-size tailing storeroom; and (4) feeding the discharge of the rod mill to a No.4 vibrating screen, feeding the oversize material the iron content of which is no less than 90% to the slag steel tank, feeding the screen underflow to a No.3 magnetic separator, feeding the separated steel slag magnetic separation powder to a magnetic separation powder storeroom, and feeding the steel slag to a small-size tailing storeroom. By using theinvention, high-quality slag steel the iron content of which is more than 90% can be obtained, thereby fully recovering the iron in the steel slag.

Description

technical field [0001] The invention relates to a steel slag treatment process, in particular to an optimization process for magnetically separating steel slag. Background technique [0002] Steel slag is the waste slag discharged during the steelmaking process. At present, the domestic steel slag processing technology is single, and crushing-screening-magnetic separation is generally used. Anshan Iron and Steel currently has a 2.4 million tons / year magnetic separation processing line to process steel slag produced by converters. The production line adopts two stages of crushing and two stages of magnetic pulley separation, and the steel slag magnetic separation products after separation are divided into granular steel, magnetic separation powder, and converter tailings. The granular steel produced has a particle size of 10-50mm and an iron content of 60%-65%. Because of the large fluctuations in alkalinity, it is difficult to return to the blast furnace for reuse, and a la...

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 Applications(China)
IPC IPC(8): B02C21/00B02C23/14B02C23/16B07B1/28B07B1/46B02C1/02B02C17/00B03C1/02
CPCY02P10/20Y02W30/50
Inventor 苏兴文宋武杨丽华李晓阳崔九霄
Owner 鞍钢绿色资源科技有限公司
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