Method for recycling valuable elements from blast furnace gas mud

A blast furnace gas mud and valuable element technology, applied in chemical instruments and methods, wet separation, process efficiency improvement and other directions, can solve problems such as high cost and poor effect, and achieve low production cost, simple process and comprehensive recovery. Take advantage of great effects

Inactive Publication Date: 2012-10-24
云南昆欧科技有限责任公司
View PDF9 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects of high cost and poor effect in the above-mentioned existing treatment methods of blast furnace gas mud (ash) and provide a kind of process with simple process, low energy consumption, low production cost, good treatment effect and comprehensive utilization rate. high way

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
  • Method for recycling valuable elements from blast furnace gas mud
  • Method for recycling valuable elements from blast furnace gas mud
  • Method for recycling valuable elements from blast furnace gas mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] See figure 1 , a method for recovering valuable elements from blast furnace gas mud. The technical feature of the present invention is that the process of pretreating low-grade blast furnace gas mud containing 3 to 8% zinc by mineral processing technology is: flotation---magnetic separation process Or magnetic separation --- flotation process method to recover the valuable elements; wherein:

[0029] Flotation---Magnetic separation process method is:

[0030] (1) Slurry the blast furnace gas mud, and its liquid-solid specific weight ratio is 2.5-3.5:1 respectively;

[0031] (2) Use high-gradient magnetic field to magnetically separate iron concentrate, and obtain iron concentrate and tailings 1 with iron content ≥ 45% respectively;

[0032] (3) Carry out magnetic separation and concentration on the tailings 1, and its liquid-solid specific weight ratio is 2.5-3.5:1;

[0033] (4) Carry out carbon flotation on the concentrated tailings 1 to obtain carbon concentrate an...

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 relates to a method for recycling valuable elements from blast furnace gas mud. The method for pretreating low-grade blast furnace gas mud comprising 3-8% of zinc by adopting the flotation-magnetic separation process to recycle valuable elements comprises flotation and magnetic separation process or magnetic separation and flotation process. The method has the advantages of simple process, low energy consumption, low production cost and excellent comprehensive recycling effect. The grade of the selected iron ore concentrate reaches the grade of the sintering ore, the zinc-rich material is used for extracting zinc by the zinc smelting plants, and the carbon ore concentrate is used for producing by the iron and steel enterprises.

Description

technical field [0001] The invention relates to the technical field of a method for comprehensively recycling valuable elements in blast furnace gas mud (ash) by adopting a magnetic levitation process. Background technique [0002] Blast furnace gas mud (ash) is the dust discharged along with the gas during blast furnace smelting. The composition of gas mud in each factory is quite different, but the main recovery objects and physical characteristics have their common characteristics, mainly manifested as; iron grade is low, It is difficult to use directly; the zinc content fluctuates greatly, due to the number of zinc cycles in the blast furnace and the fluctuation of zinc content in raw materials, resulting in large changes in zinc content; the carbon content is relatively high, generally around 20%; the particle size of the material is extremely fine, and It forms the characteristics of high carbon content in coarse grains and high zinc content in fine grains (the distrib...

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): C22B7/00B03B7/00
CPCY02P10/20
Inventor 蒋朋钢冯成建张建树
Owner 云南昆欧科技有限责任公司
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