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

Method for improving proportion of steel slag in blended ore

A technology of mixing ore and steel slag, which is applied in the field of steelmaking, can solve the problems of low utilization rate of steel slag, loss and waste of iron elements, etc., achieve the effect of saving ingredients cost, improving mixing degree, and solving the effect of steel slag accumulation and resource occupation

Pending Publication Date: 2022-01-14
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, aiming at the deficiencies of the above-mentioned prior art, the present invention provides a method for increasing the ratio of steel slag in the mixed ore, so as to solve the problems of low steel slag utilization rate and iron element loss and waste in the existing production process

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 improving proportion of steel slag in blended ore
  • Method for improving proportion of steel slag in blended ore
  • Method for improving proportion of steel slag in blended ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0017] The steel slag used in the following examples is produced in the steelmaking process of Sichuan Desheng Group Vanadium and Titanium Co., Ltd., the applicant of the present invention, and its specific chemical composition is:

[0018] SiO 2 %

CaO% MgO% Al 2 o 3 %

TiO 2 %

V 2 o 5 %

P 2 0 5 ％

Total iron (TFe)% 8-13 37-42 6-7 2-3 1.8-2.5 2.5-4 1.8-2.4 45-52

[0019] The ingredients used in the production of mixed ore are shown in the table below:

[0020]

[0021]

[0022] Theoretically, every 1% increase in the proportion of steel slag can reduce the proportion of ordinary ore powder or vanadium concentrate powder by 1%. Considering the price-performance ratio of single iron, the op...

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 method for improving the proportion of steel slag in blended ore. The method comprises the following four steps: (1), crushing the steel slag until the granularity of the crushed steel slag is less than or equal to 10 mm; (2), carrying out magnetic separation treatment on the steel slag, wherein the total iron content TFe of the steel slag after magnetic separation is greater than or equal to 18% and less than or equal to 23%; (3), and adjusting a batching structure participating in uniform ore blending according to the requirements of different types of steel for steelmaking smelting on the P content of molten iron; and (4), making a thick material layer and forming a low machine speed in the sintering mode of the uniformly mixed ore. The method solves the problems of resource occupation caused by steel slag accumulation and loss and waste of an iron element in steel slag takeout due to a low steel slag utilization rate.

Description

technical field [0001] The invention relates to a method for increasing the ratio of steel slag in a mixed ore, belonging to the technical field of steelmaking. Background technique [0002] As the main raw material for sintering production, the quality of mixed ore is closely related to the stability of sintering and blast furnace production. The production of mixed ore is to accurately mix different types of iron raw materials that meet the requirements in a certain proportion according to the requirements of blast furnace for sintering. Continuous and even distribution piles up to form a large pile of mixed ore. Steel slag is the iron-containing waste produced in the steelmaking process, which can be used as a smelting solvent to participate in the mixing of ore ingredients and be recycled. However, in the actual production of mixed ore, due to the uneven particle size of steel slag, the presence of bright iron, large fluctuations in chemical composition, and high burnin...

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): C22B1/248C22B1/16B03C1/30B02C23/08
CPCC22B1/248C22B1/16B02C23/08B03C1/30Y02P10/20
Inventor 陆财天张成立向成功达建超高丽姗
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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