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

Electric arc furnace

一种电弧炉、耐火炉衬的技术，应用在电弧炉领域，能够解决熔化金属泄漏等问题

Inactive Publication Date: 2009-12-09
PAUL WURTH SA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of this method is that when the refractory wears excessively, the risk of molten metal leaking is very great

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
  • Electric arc furnace
  • Electric arc furnace
  • Electric arc furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 A horizontal cross-sectional view of an electric arc furnace is shown, generally indicated by the reference numeral 10 . The cylindrical outer furnace shell 12, made of welded steel plates, is internally lined with refractory material. figure 1 The section of is through a taphole 14 for discharging molten metal and also shows a slag door 16 for discharging slag formed on top of the pool of molten metal during operation.

[0028] Such as figure 1 As shown, a plurality of copper slabs (copper slabs) 20, 20' are mounted inside the housing 12. Each copper plate 20, 20' is provided with a cooling box 22. The copper plates 20, 20' are mounted adjacently so as to form a substantially continuous inner cooling ring, indicated by circular arrows 23. During the working period of the electric arc furnace 10, the inner cooling ring 23 evenly cools the refractory lining ( figure 1 not shown in the specific area). It can be noted that the inner cooling ring 23...

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

An electric arc furnace (10) has an outer shell (12) and an inner refractory lining (24). The electric arc furnace (10) comprises, during its operation, a molten metal bath (28) having minimum and maximum operating heights (32). In the range (34) between the minimum and said maximum working height (32), an inner cooling ring (23) of copper plates (20, 20') is mounted to the housing (12), said copper plates (20, 20') It is in contact with the inner refractory lining (24) in a heat conduction manner, and is provided with a spray cooling device (22).

Description

technical field [0001] The invention relates to an electric arc furnace and to a cooling arrangement for a refractory lining of such an electric arc furnace. More specifically, the present invention relates to a pig iron smelting electric arc furnace which produces pig iron with an intensely stirred bath and a cooling arrangement for cooling the refractory lining in this particular type of pig iron smelting furnace, To allow high heat transfer ratio (high specific) powder (size about 1MW / m 2 ) to join. Background technique [0002] In pig iron smelting electric arc furnaces, pre-reduced iron and other metal oxides are melted and reduced to produce ferroalloys. During operation, the temperature of the molten pool of molten metal (ie pig iron) within the furnace is typically between 1450°C and 1550°C. To ensure a uniform molten pool temperature, and to melt the incoming material quickly, the arc energy needs to spread rapidly throughout the molten pool. In pig iron smeltin...

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): C21B13/12F27D1/12F27B3/24
CPCF27B3/24F27D1/12C21B13/12F27D2009/0043F27D9/00F27D2009/0062
Inventor 埃米尔·洛纳尔迪让-卢卡·罗特保罗·托克尔特
Owner PAUL WURTH SA
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