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

Pre-synthesized mineralizing agent for silica brick and preparation method thereof

A mineralizer and pre-synthesis technology, applied in crucible furnaces, electric furnaces, drum furnaces, etc., can solve the problems of unstable iron scale composition, impurity ferrous oxide, etc., and achieve controllable ferrous oxide content and iron content distribution Uniform, high ferrous content effect

Active Publication Date: 2017-03-29
中钢洛耐(洛阳)新材料有限公司
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main problems of the iron scale lime milk mineralizer currently used: the one is that the composition of iron scale (rolled steel sheet) is unstable, including the content of impurities and ferrous oxide

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
  • Pre-synthesized mineralizing agent for silica brick and preparation method thereof
  • Pre-synthesized mineralizing agent for silica brick and preparation method thereof
  • Pre-synthesized mineralizing agent for silica brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] A preparation method of a pre-synthesized silica brick mineralizer, the method is to combine non-ferrous metal smelting and smelting slag composition control, control the smelting slag composition, reaction process and mineral composition, and control the smelting slag by cooling treatment, It is then ground and re-selected, and used as a mineralizer in the production of silica bricks.

[0034] combine figure 1 , the preparation method of described a kind of pre-synthesized silica brick mineralizer, comprises the following steps:

[0035] Step 1. Selection of raw materials, pretreatment and control of slag composition: the silica diluent used, SiO 2 %≥99, the silica raw material must be washed with water to reduce impurities such as loess and alumina introduced into the mountain belt; only add silica to the slag in the later stage of smelting to adjust the composition of the slag; using silica as a diluent and a component adjuster can not only make the slag in the late...

Embodiment 1

[0043] Step 1: Selection of raw materials, pretreatment and control of slag composition. Silica diluent used, SiO 2 %=99.07, the silica raw material is washed with a roller screen;

[0044] Step 2, smelting reaction process and mineral composition control. The copper matte smelting process is adopted, the smelting temperature is 1280 ℃, and the oxidizing atmosphere is controlled for smelting. The conversion result of the composition of the copper smelting charge is (per 100kg): Cu is 26.12kg, Pb+Ag+Zn=4.01kg, S is 31.24kg, Al 2 O 3 1.09kg, SiO 2 is 9.68kg and Fe is 25.67kg. According to SiO 2 : FeO=1:2.08 ratio calculation, FeO of 25.67kg is converted into FeO is 33.02kg, need to add silica 15.88kg. Remove the original 9.68kg of SiO 2 , an additional 6.20kg of SiO is required 2 (i.e. silica); after smelting is completed, after the smelting matte is separated from the slag, the composition test before the slag furnace: the total amount of aluminum oxide, titanium oxide...

Embodiment 2

[0051] The difference between this embodiment and the first embodiment is: according to the iron in the copper ore raw material is converted into ferrous oxide, adding silica to control the mass ratio of SiO 2 : FeO=1:1.9.

[0052] Pre-synthesized silica brick mineralizer composition test: by mass percentage, the total amount of solvents such as aluminum oxide, titanium oxide, potassium oxide and sodium oxide is 0.63% (the above four components in the flux each contain aluminum oxide 0.38% , titanium oxide 0.09%, potassium oxide 0.05%, sodium oxide 0.11%, total flux 0.63%), calcium oxide content 6.52%, silicon oxide content 27.98%, ferrous oxide content 60.94%, iron oxide content 2.03%, oxide The copper content is 0.62%, and the balance of other components is 1.28%. The theoretical iron silicate content in the slag is 85.95%. The results of comparative analysis show that there is almost no difference from Example 1, and the product quality and performance are stable.

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 pre-synthesized mineralizing agent for a silica brick and a preparation method thereof. The mineralizing agent comprises silicon oxide, ferrous oxide, iron oxide, calcium oxide and other flux components. According to the preparation method, metal smelting and control of smelting slag components are combined together; the smelting slag components, reaction process and mineral composition are controlled; and treated smelting slag is applied as the mineralizing agent for production of a silica brick. The preparation method for the pre-synthesized mineralizing agent comprises the following steps: step 1, selection and pretreatment of raw materials; step 2, controlling of the smelting reaction process and mineral composition; step 3, cooling of smelting slag; and step 4, fine grinding and treatment of the slag. Compared with a silica brick produced by using an iron scale-lime milk mineralizing agent, the silica brick produced by using the pre-synthesized mineralizing agent has the advantages of low production cost, high conversion rate, small true density, low residual expansion, high strength and good thermal conductivity.

Description

technical field [0001] The invention relates to the industry of high-temperature structural materials, and relates to a preparation method of a mineralizer raw material used in the production of siliceous refractory products, in particular to a pre-synthesized silica brick mineralizer and a preparation method thereof. Background technique [0002] my country is a big producer of refractory materials, with an annual output of about 30 million tons, accounting for about two-thirds of the world's total output. The products are mainly silicon-aluminum and magnesia refractories, and silicon-aluminum products account for about 10-15% of the total production of materials. [0003] Silicon products refer to refractory products with a silicon oxide content of not less than 93% and tridymite and cristobalite as the main crystal phase. Silicon products are mainly used in linings of coke ovens, glass melting furnaces, hot blast furnaces and other thermal equipment. Since the maximum op...

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): C04B5/00C04B5/06C04B35/66C04B35/14C22B15/00
CPCC22B15/0028C04B5/00C04B5/06C04B35/14C04B35/66C04B2235/3217C04B2235/3208C04B2235/3201C04B2235/3281C04B2235/3272C04B2235/3232
Inventor 马立建薛群虎高云琴刘民生
Owner 中钢洛耐(洛阳)新材料有限公司
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