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

Material sequence control method applied to high-proportion pellet smelting

A control method, a high-proportion technology, applied in steel manufacturing process, blast furnace, blast furnace details, etc., can solve problems affecting the stable distribution of gas in the furnace, performance impact, etc.

Inactive Publication Date: 2020-06-16
SHOUGANG JINGTANG IRON & STEEL CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a material sequence control method applied to high-proportion pellet smelting, which solves the impact of the difference in performance of the two materials, pellet ore and sinter, on blast furnace smelting during the high-proportion pellet smelting process , especially technical issues that affect the stable distribution of gas in the furnace

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
  • Material sequence control method applied to high-proportion pellet smelting
  • Material sequence control method applied to high-proportion pellet smelting
  • Material sequence control method applied to high-proportion pellet smelting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The embodiment of the present application provides a material sequence control method applied to high-proportion pellet smelting, which solves the impact of the difference in performance of the two materials, pellet ore and sinter, on blast furnace smelting during the high-proportion pellet smelting process , especially technical issues that affect the stable distribution of gas in the furnace.

[0022] The technical solution of the embodiment of the application is to solve the above technical problems. The application provides a material sequence control method applied to the smelting of high-proportion pellets. In more than 40% of the feeding systems, in practical applications, the feeding system includes a feeding belt and a silo evenly arranged above the feeding belt, and the silo is used to classify and store the materials required for this smelting. of various furnace materials. The silo and feeding belt of the feeding system in the furnace smelting such as figu...

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
cover factoraaaaaaaaaa
Login to View More

Abstract

The invention discloses a material sequence control method applied to high-proportion pellet smelting. The material sequence control method comprises the following steps that the feeding starting time, the feeding total time length and the first second flow of each furnace charge in N furnace charges are set according to the N furnace charges required by the smelting and the addition amount of each furnace charge, so that material strips of pellets on a feeding belt completely fall into the material strips of a sintered ore, and the coverage rate is 85% or above; the feeding sequence of the Ntypes of furnace charges is controlled in that timing is carried out by taking the moment when feeding is started in the smelting as a starting point, and when the timing reaches the feeding startingmoment of the ith type of furnace charge in the N types of furnace charges, the ith type of furnace charge is fed to a feeding belt at the first second flow aiming at the ith type of furnace charge; and when the total feeding duration corresponding to the ith furnace burden is reached, feeding is stopped. According to the method, the stable distribution of the gas in the furnace can be prevented from being influenced by the difference between the pellet ore and the sintered ore in physical, chemical and metallurgical properties and the like, so that the distribution of the gas in the furnace is more stable.

Description

technical field [0001] The invention relates to the technical field of blast furnace smelting, in particular to a material sequence control method applied to high-proportion pellet smelting. Background technique [0002] At present, the raw material structure of blast furnace smelting is mainly sintered ore. The proportion of sintered ore in the raw materials of most domestic blast furnaces is more than 65%, and the proportion of sintered ore in some blast furnaces reaches 80-90%. Only a small amount of raw materials are added to the furnace Pellets and raw ore mainly take advantage of the advantages of sinter in terms of material sequence control, and a small amount of pellets and raw ore are mainly to adjust the slag alkalinity and composition to achieve complementary chemical properties. [0003] Based on the advantages of pellets in environmental protection and low consumption, high-proportion pellet smelting has become the development trend of blast furnace smelting. A...

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): C21B5/00
CPCC21B5/006C21B5/008C21B2300/02
Inventor 滕召杰陈建甄昆泰陈川郑凯郭宏烈王喜元李宏伟王牧麒
Owner SHOUGANG JINGTANG IRON & STEEL 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