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

Hydrogen metallurgy shaft furnace system

A technology of hydrogen metallurgy and shaft furnace, applied in the field of hydrogen metallurgy shaft furnace system, which can solve the problems of high energy consumption and high metallurgical cost of shaft furnace, and achieve the effects of simple process, obvious energy saving effect and reduced heat loss

Active Publication Date: 2020-11-06
钢研晟华科技股份有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the embodiment of the present invention aims to provide a hydrogen metallurgical shaft furnace system to solve the technical problems of high metallurgical cost and energy consumption of the shaft furnace caused by using different reducing gas and cooling gas in the existing shaft 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
  • Hydrogen metallurgy shaft furnace system
  • Hydrogen metallurgy shaft furnace system
  • Hydrogen metallurgy shaft furnace system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The invention provides a hydrogen metallurgy shaft furnace system, such as Figure 1 to Figure 8 As shown, it includes a hydrogen-rich reducing gas heating unit, the hydrogen-rich reducing gas heating unit includes a heater body, and the heater body (that is, the heater smoke chamber) includes a heater sub-box 52 and a smoke chamber disposed at both ends of the heater body. The gas inlet 53 and the flue gas outlet 58; the heater sub-box 52 is provided with a high temperature section heating tube bundle 69, a medium temperature section heating tube bundle 64 and a low temperature section heating tube bundle 61; the hydrogen-rich reducing gas 14 is successively passed through the low temperature section heating tube bundle 61. The middle temperature section heating tube bundle 64 and the high temperature section heating tube bundle 69 realize reverse heat exchange with the flue gas in the heater sub-box 52 .

[0045] Specifically, the heater body provided by the present i...

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 hydrogen metallurgy shaft furnace system, and belongs to the technical field of shaft furnace metallurgy. The system solves the technical problem of high cost and large energy consumption of the shaft furnace metallurgy caused by the use of different reducing gas and cooling gas of the prior shaft furnaces. The hydrogen metallurgy shaft furnace system provided by the invention comprises an oxidized pellet feeding unit, an oxidized pellet reduction unit, a metal pellet cooling unit, a metal pellet discharging unit, a hydrogen rich reducing gas heating unit and a hydrogen rich cooling gas supply unit. The metal pellet cooling unit is arranged under the oxidized pellet reduction unit and connected with the oxidized pellet reduction unit. The hydrogen rich reducing gas heating unit is used for supplying high-temperature hydrogen rich reducing gas to the oxidized pellet reduction unit. The hydrogen rich cooling gas supply unit is used for supplying hydrogen rich cooling gas to the oxidized pellet reduction unit and the metal pellet cooling unit. According to the hydrogen metallurgy shaft furnace system, the hydrogen rich cooling gas with the same composition as the hydrogen rich reducing gas is used for cooling metal pellets, and a low-cost hydrogen metallurgy process is realized on the basis of low energy consumption.

Description

technical field [0001] The invention relates to the technical field of shaft furnace metallurgy, in particular to a hydrogen metallurgy shaft furnace system. Background technique [0002] As the iron and steel industry continues to increase the requirements for energy conservation and emission reduction, hydrogen metallurgy technology using hydrogen instead of carbon as a reducing agent is expected to completely change the environmental status of the iron and steel industry, bringing hope for the sustainable development of the iron and steel industry. [0003] Hydrogen is the most active reducing agent. During the gas-solid reduction reaction of iron oxides, increasing the proportion of hydrogen in the gas reducing agent can significantly improve the reduction rate and reduction efficiency. Hydrogen metallurgy does not contact coke in the metallurgical process, the DRI produced is high-purity iron, and the product quality is high, which is conducive to the production of high...

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): C21B11/02
CPCC21B11/02
Inventor 周和敏沈朋飞张俊徐洪军许海川齐渊洪林万舟王锋严定鎏郝晓东高建军何鹏王海风
Owner 钢研晟华科技股份有限公司
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