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

Sinter Alkalinity Adjustment Method

An adjustment method and technology of basicity, applied in the field of sinter basicity adjustment, can solve the problems of low accuracy, fluctuation of sinter basicity, unstable composition, etc., to improve the qualified rate and first-class product rate, and to stabilize sinter. The effect of alkalinity and stabilizing sinter quality

Active Publication Date: 2015-11-04
TIANJIN IRON & STEEL GRP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many types of raw materials for sintering and their compositions are not stable, the traditional batching adjustment method classifies and summarizes all the ingredients. Every time an adjustment is made, all the ingredients need to be recalculated. The calculation process is cumbersome and the accuracy is low.
Especially when the composition of the mixed ore changes greatly during stacking, the alkalinity of the sinter fluctuates more violently, resulting in poor stability of the alkalinity of the sinter during stacking, which reduces the quality stability of the sinter

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
  • Sinter Alkalinity Adjustment Method
  • Sinter Alkalinity Adjustment Method
  • Sinter Alkalinity Adjustment Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0063] see figure 1 and figure 2 , the invention provides a method for adjusting the basicity of sintered ore, comprising the steps of:

[0064] 1) Daily Alkalinity Adjustment

[0065] In daily production, the alkalinity of sinter will inevitably fluctuate. First find out the cause of the change and judge that it is SiO 2 It is also the change of alkalinity caused by the change of CaO. If it is caused by the change of CaO, adjust according to the following formula, and adjust the flux with limestone.

[0066] The adjustment formula is:

[0067]

[0068] Δ—Adjust the percentage proportioning ratio

[0069] M—Alkalinity target value

[0070] N—average alkalinity value (actual)

[0071] C—limestone CaO%

[0072] S—average SiO 2 %(a...

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 regulating the basicity of sintered ore. The method comprises three steps of 1) daily alkalinity regulation, 2) replaced pile alkalinity regulation and 3) ingredient check, wherein in the daily alkalinity regulation process, the alkalinity is accurately regulated through simple and convenient calculation; the replaced pile alkalinity regulation further comprises the determination of the service time of the new stockpile, the first step of replaced pile alkalinity calculation and the second step of replaced pile alkalinity calculation; in the pile replacing process, information such as pile replacing time, ingredient change and regulation quantity is accurately mastered through simple and convenient calculation; the alkalinity is regulated step by step and layer by layer; finally, the regulation amplitude is the product of the theoretical regulation percentage and the regulation quantity. The method provided by the invention is capable of quickly regulating the basicity of the sintered ore, therefore, the regulation time is shortened, and the alkalinity percent of pass and the ratio of first-grade products of the sintered ore are increased; in the period of replacing the pile of the evenly mixed ore, the influence of the raw material ingredient change on the alkalinity of the sintered ore can be effectively reduced, and non-fluctuation pile replacement is realized; as a result, the quality of the sintered ore is stabilized and smooth operation of the blast furnace is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sintered ore production, in particular to a method for adjusting the alkalinity of sintered ore. Background technique [0002] Sinter is the main raw material for blast furnace smelting, and the stability of its R is particularly important for blast furnace smelting. Since there are many types of raw materials for sintering and their compositions are not stable, the traditional batching adjustment method classifies and summarizes all the ingredients. Every time an adjustment is made, it is necessary to recalculate all the ingredients. The calculation process is cumbersome and the accuracy is low. Especially when the composition of the mixed ore changes greatly during stacking, the alkalinity of the sinter fluctuates more violently, resulting in poor stability of the alkalinity of the sinter during stacking, which reduces the quality stability of the sinter. Contents of the invention [0003] The object...

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): C22B1/16C22B1/00
Inventor 孙海宁贾佳博李俊达
Owner TIANJIN IRON & STEEL GRP
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