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Method for preparing microcrystalline glass by utilizing blast furnace steel slag

A technology for blast furnace slag and glass-ceramic, which is applied in the field of preparing high-strength glass-ceramic by using blast-furnace slag, can solve the problems of single crystal phase high-strength glass-ceramic technology and performance, etc. Low production cost and low water absorption

Inactive Publication Date: 2013-06-12
承德远通钢铁设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the literature reports focus on the preparation of glass-ceramic by using various types of steel slag and its performance research. On the use of high-volume blast furnace steel slag as the main raw material to prepare transparent glass products of various colors, and then crystallize to prepare high-quality glass-ceramic products of various colors and a single crystal phase. There is no report on the technology and performance of high-strength glass-ceramics

Method used

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  • Method for preparing microcrystalline glass by utilizing blast furnace steel slag
  • Method for preparing microcrystalline glass by utilizing blast furnace steel slag
  • Method for preparing microcrystalline glass by utilizing blast furnace steel slag

Examples

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Effect test

Embodiment 1

[0032] The first step, steel slag drying and ball milling

[0033] First, put the blast furnace steel slag with a particle size of less than 10mm into the rotary drying furnace, raise the temperature from room temperature to 120°C at a rate of 3°C / min, and rotate at a speed of 20 rpm, keep it warm for 4 hours, and then cool it down to room temperature;

[0034] Then, put the dried blast furnace slag into a ball mill and grind it to 100 mesh powder;

[0035] Finally, the ball-milled powder is poured into the iron removal device for iron removal, and the blast furnace steel slag powder for preparing glass-ceramics is obtained after iron removal;

[0036] The second step, preparation of transparent steel slag glass

[0037] First, put 85% blast furnace steel slag powder, 3% quartz sand, 3% sodium nitrate, 5% barium nitrate, 1% zinc oxide and 3% cerium oxide into the mixer according to the mass percentage Form the batch, then add distilled water with 5% batch mass to the mixer, ...

Embodiment 2

[0050] The first step, steel slag drying and ball milling

[0051] First, put the blast furnace steel slag with a particle size of less than 10mm into the rotary drying furnace, raise the temperature from room temperature to 120°C at a heating rate of 3°C / min, and rotate at a speed of 22 rpm, keep warm for 3 hours, and then cool to room temperature;

[0052] Then, put the dried blast furnace slag into a ball mill and grind it to 100 mesh powder;

[0053] Finally, the ball-milled powder is poured into the iron removal device for iron removal, and the blast furnace steel slag powder for preparing glass-ceramics is obtained after iron removal;

[0054] The second step, preparation of transparent steel slag glass

[0055] First, put 80% blast furnace steel slag powder, 8% quartz sand, 1% sodium nitrate, 4% barium nitrate, 1% zinc oxide and 6% cerium oxide into the mixer according to the mass percentage Form the batch, then add distilled water with 5% batch mass to the mixer, tur...

Embodiment 3

[0063] The first step, steel slag drying and ball milling

[0064] First, put the blast furnace steel slag with a particle size of less than 10 mm into the rotary drying furnace, raise the temperature from room temperature to 120 °C at a rate of 3 °C / min, and rotate at a speed of 25 rpm, keep it for 2 hours, and then cool it to room temperature;

[0065] Then, put the dried blast furnace slag into a ball mill and grind it to 100 mesh powder;

[0066] Finally, the ball-milled powder is poured into the iron removal device for iron removal, and the blast furnace steel slag powder for preparing glass-ceramics is obtained after iron removal;

[0067] The second step, preparation of transparent steel slag glass

[0068] First, put 83% blast furnace steel slag powder, 4% quartz sand, 6% sodium nitrate, 2% barium nitrate, 2% zinc oxide and 3% ceria into the mixer according to the mass percentage Form the batch, then add distilled water with 5% batch mass to the mixer, turn on the mi...

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Abstract

The invention relates to a method for preparing a microcrystalline glass by utilizing steel slag. The method comprises the following steps of: firstly, carrying out drying and ball milling on the steel slag and removing iron contained in the steel slag to prepare powder of 100 meshes; then mixing the steel slag powder, quartz sand, sodium nitrate, barium nitrate, zinc oxide and cerium dioxide into a compound material; placing the mixture obtained from the former step into a crucible, and smelting at 1250-1380 DEG C to form a transparent steel slag glass; and finally, crystallizing the transparent steel slag glass to form the steel slag microcrystalline glass containing calcium akermanite as a main crystal phase. The method disclosed by the invention utilizes the blast furnace steel slag as a main raw material and achieves the utilization amount of the steel slag at 96%; and the microcrystalline glass prepared according to the method has the advantages of high structural strength, low water absorption, high crystalline degree and various color. The preparation process disclosed by the invention is simple in operation process and low in cost, can effectively reduce the production cost of the microcrystalline glass, protects the environment and changes the wastes into valuables, is suitable for industrialized large-scale production and has obvious economic benefit and environmental benefit.

Description

technical field [0001] The invention relates to a method for manufacturing glass-ceramics, in particular to a method for preparing high-strength glass-ceramics by using blast furnace steel slag. technical background [0002] Glass-ceramic is a new type of building decoration material developed by combining glass and ceramic technology, and it is a replacement product of high-grade natural stone. The construction industry and building materials industry are the pillar industries of the national economy in both developed and developing countries. The output of my country's building ceramics industry has surpassed that of Italy, a major Western building ceramics country, ranking first in the world. However, due to the low grade of the products, the output value is far lower than that of Italy, Spain and other western building ceramics industrial powers. Glass-ceramic decorative panel is a non-radioactive high-grade building material emerging worldwide in the past five years, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00
Inventor 李春光
Owner 承德远通钢铁设备制造有限公司
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