Sintering desulfurization ash treatment system and method

A technology of sintering desulfurization ash and treatment system, which is applied in the direction of cement production, etc., can solve the problems of practical application limitations, unfavorable two sensitive indicators of activity index and chloride ion content, etc., and achieve uniform distribution, resource saving, and reduction of environmental pollution. Effect

Inactive Publication Date: 2017-05-24
SHAGANG GROUP
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above method is that the addition of desulfurization ash is unfavorable to the two sensitive indicators of the activity index of the slag micropowder and the chloride ion content, and the practical application is obviously limited

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
  • Sintering desulfurization ash treatment system and method
  • Sintering desulfurization ash treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be more fully understood through the following specific embodiments that should be read together with the accompanying drawings. Detailed embodiments of the present invention are disclosed herein; however, it should be understood that the disclosed embodiments are only exemplary of the present invention, and the present invention can be embodied in various forms. Therefore, the specific functional details disclosed herein should not be construed as restrictive, but only as the basis of the claims and construed as teaching those skilled in the art to differ in any appropriate detailed embodiment. The method adopts the representative basis of the present invention.

[0027] Combine figure 1 As shown, the sintering desulfurization ash treatment system includes a semi-dry sintering desulfurization device, a sintering deashing collection bin, an ironmaking blast furnace, a slag water quenching system, and a grinding device. The ironmaking blast furn...

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 sintering desulfurization ash treatment system and method. The sintering desulfurization ash treatment method comprises the following steps that: a high temperature liquid slag iron mixture is discharged into a stokehole slag iron ditch from a furnace to achieve slag and iron separation in the production process of an iron smelting blast furnace, and blast furnace liquid slag flows through a slag ditch to be water-quenched to produce water slag; and when the blast furnace liquid slag flows through the slag ditch, sintering desulfurization ash comprising main components of CaSO3 and CaSO4 is added to the liquid slag in the slag ditch to be oxidized and melted into the liquid slag, and blast furnace water slag is obtained by water quenching treatment. The desulfurization ash difficult to treat generated by sintering desulfurization in production is subjected to high-temperature oxidization and water quenching to generate a similar material of slag powder, and the activity of slag power is not reduced; the similar material of the slag powder conforms to the requirement of national standard in which the chlorine ion content is less than 0.06%, the desulfurization ash is recycled, the environmental pollution is reduced, the resource is saved, and the environment-friendly effect is achieved.

Description

Technical field [0001] This application belongs to the technical field of solid waste treatment and steelmaking, and particularly relates to a sintering desulfurization ash treatment system and method. Background technique [0002] SO in sintering flue gas 2 Of steel companies’ SO 2 50 to 70% of the total discharge, direct discharge will cause serious environmental pollution and waste of resources. Flue gas desulfurization is to control SO in sintering flue gas 2 The most effective method of pollution. [0003] During the national "Twelfth Five-Year Plan" period, sintering flue gas desulfurization technology was widely adopted by iron and steel enterprises. The desulfurization process mainly used lime-gypsum method, ammonia-ammonium sulfate method, activated carbon adsorption method, semi-dry method, etc. [0004] Semi-dry sintering desulfurization is due to its small footprint, low investment, high desulfurization efficiency, and the system has different SO 2 With the advantages of...

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
IPC IPC(8): C04B5/06C04B7/147
CPCC04B5/06C04B7/147Y02P40/10
Inventor 刘俭
Owner SHAGANG GROUP
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