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

Rafractory for molten iron discharge channel of blast furnace

A technology of refractory materials and blast furnace iron tapping, which is applied in the field of refractory materials, can solve the problems of thermal shock resistance decline, strength decline, difficulties, etc., and achieve the effects of long service life, large amount of iron passing through, and good corrosion resistance

Inactive Publication Date: 2004-01-07
CHONGQING IRON & STEEL (GRP) CO LTD
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because increasing the strength of the refractory material can improve the erosion resistance and corrosion resistance of the material, but after increasing to a certain extent, the thermal shock resistance stability will decrease; increasing the amount of graphite added can improve the thermal shock resistance of the refractory material Stability and corrosion resistance, but if the content of graphite is more than 5%, its strength will drop sharply
Therefore, it is very difficult for the refractory materials used in the casting trough and flow nozzle of the blast furnace casthouse to satisfy their excellent erosion resistance, thermal shock resistance stability, and corrosion resistance at the same time.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] According to the composition batching of refractory material of the present invention, its specific chemical composition is as shown in Table 1, after batching, according to the usual production process of refractory material prefabricated parts, carry out material mixing, vibrate, shape, keep in good health, after drying, it is a finished product.

[0022]

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
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The composition of refractory material for tapping spout includes (by weight portion) brown corundum aggregate formed from 12-14 portions of 8-5 mm aggregate, 16-18 portions of 5-3 mm aggregate, 23-25 portions of 3-1 mm aggregate and 13-15 portions of 1-0 mm aggregate, 14-16 portions of SiC (No.90), 3-5 portions of micropowder, 0.15 portion of metal aluminium powder, 1 portion of white mud, 6 portions of cement, 0.2 portion of sodium tripolyphosphate and 5-5.5 portions of water. Said invention fealures good erosion resistance, thermal shock-resisting stability and long service life, etc.

Description

(1).Technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a refractory material used for tapping troughs and flow nozzles of blast furnaces. (2). Background technology [0002] The refractory materials used in the tap trough and flow nozzle of the blast furnace casthouse need to have erosion resistance, thermal shock resistance stability, and corrosion resistance in order to ensure their long service life. Because increasing the strength of the refractory material can improve the erosion resistance and corrosion resistance of the material, but after increasing to a certain extent, the thermal shock resistance stability will decrease; increasing the amount of graphite added can improve the thermal shock resistance of the refractory material Stability and corrosion resistance, but if the content of graphite is more than 5%, its strength will drop sharply. Therefore, it is very difficult for the refractory materials use...

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): C04B35/103C04B35/565C21B7/14
Inventor 陈浩旷渝川王伟徐刚
Owner CHONGQING IRON & STEEL (GRP) 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