Blast furnace hot slag microcrystalline glass and preparation method thereof

A technology for hot slag and glass-ceramic, which is applied in the field of blast furnace hot slag and glass-ceramic and its preparation, and can solve the problems of poor durability, general quenching and tempering effect, and high porosity

Inactive Publication Date: 2015-04-08
宝钢矿棉科技(宁波)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, blast furnace slag is used as the main raw material, and natural minerals such as silica sand, calcite, and feldspar are used as concoctions (the concoctions are used to improve the physical and chemical properties of blast furnace slag, so that the high-temperature melt can meet the production requirements of glass-ceramics) to produce high-temperature glass-ceramics In the process of melting, the tempering effect of the conditioning material composed of natural minerals such as silica sand, calcite, and feldspar is general, especially in improving the defects such as bubbles and streaks inside the high-temperature melt of glass-ceramics. Good; resulting in the prepared glass-ceramics usually have shortcomings such as high porosity, high brittleness, poor durability, and poor machinability

Method used

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  • Blast furnace hot slag microcrystalline glass and preparation method thereof
  • Blast furnace hot slag microcrystalline glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: A blast furnace hot slag glass-ceramics, the raw material of the blast furnace hot slag glass-ceramics is composed of the following components in mass percentage: liquid blast furnace slag is 53%, fly ash is 24%, Lithium carbonate is 5%, sodium carbonate is 4.5%, sodium fluorosilicate is 4%, zirconium oxide is 2%, titanium dioxide is 3%, arsenic trioxide is 0.2%, antimony oxide is 0.2%, and phosphorus pentoxide is 2%. Cesium oxide is 0.1% and colorant is 2%. (HYPERLI of Zirconia

[0050] The fly ash contains the following components by mass percentage: SiO 2 46-48%, Al 2 O 3 27-28%, TiO 2 1-1.5%, FeO is 5-6%, CaO is 4-4.5%, MgO is 0.5-1%, K 2 O is 1-1.5%, Na 2 O is 0.3-0.6%, MnO is 0.01-0.1%, P 2 O 3 0.1-0.5%, SO 3 It is 1-1.5%. The loss on ignition of fly ash is less than 10%.

[0051] The colorant is ceria, cobalt tetroxide or copper oxide. If the coloring agent is cerium oxide, the color of the glass-ceramic obtained is beige. When the bright blue colorant ...

Embodiment 2

[0070] Embodiment 2: Refer to Embodiment 1 for the specific structure of the slag furnace in this embodiment.

[0071] A blast furnace hot molten slag glass-ceramic, the raw material of the blast furnace hot molten slag glass-ceramic is composed of the following components by mass percentage: liquid blast furnace slag is 55%, fly ash is 23%, and lithium carbonate is 4 %, sodium carbonate is 6%, sodium fluorosilicate is 3.5%, zirconium oxide is 3%, titanium dioxide is 3%, arsenic trioxide is 0.16%, antimony oxide is 0.2%, phosphorus pentoxide is 2%, and cesium oxide is 0.1 %, the colorant is 0.04%.

[0072] The fly ash contains the following components by mass percentage: SiO 2 46-48%, Al 2 O 3 27-28%, TiO 2 1-1.5%, FeO is 5-6%, CaO is 4-4.5%, MgO is 0.5-1%, K 2 O is 1-1.5%, Na 2 O is 0.3-0.6%, MnO is 0.01-0.1%, P 2 O 3 0.1-0.5%, SO 3 It is 1-1.5%. The loss on ignition of fly ash is less than 10%.

[0073] The colorant is composed of cadmium sulfide and selenium with a mass ratio of...

Embodiment 3

[0088] Embodiment 3: Refer to Embodiment 1 for the specific structure of the slag furnace in this embodiment.

[0089] A blast furnace hot slag glass-ceramic. The raw material of the blast furnace hot slag glass-ceramic is composed of the following components in mass percentage: liquid blast furnace slag is 59%, fly ash is 17%, and lithium carbonate is 4 %, sodium carbonate is 5.5%, sodium fluorosilicate is 4%, zirconium oxide is 5%, titanium dioxide is 3%, arsenic trioxide is 0.3%, antimony oxide is 0.2%, phosphorus pentoxide is 1%, and cesium oxide is 0.15 %, the colorant is 0.85%.

[0090] The fly ash contains the following components by mass percentage: SiO 2 46-48%, Al 2 O 3 27-28%, TiO 2 1-1.5%, FeO is 5-6%, CaO is 4-4.5%, MgO is 0.5-1%, K 2 O is 1-1.5%, Na 2 O is 0.3-0.6%, MnO is 0.01-0.1%, P 2 O 3 0.1-0.5%, SO 3 It is 1-1.5%. The loss on ignition of fly ash is less than 10%.

[0091] The colorant is composed of cobalt tetroxide and nickel oxide with a mass ratio of 1:3. Th...

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Abstract

The invention discloses a blast furnace hot slag microcrystalline glass and a preparation method thereof. The blast furnace hot slag microcrystalline glass comprises the following raw materials by mass percentage: 50-70% of liquid blast furnace slag, 10-30% of fly ash, 2-7% of lithium carbonate, 3-8% of sodium carbonate, 3-5% of sodium fluosilicate, 1-5% of zirconium oxide, 3-6% of titanium dioxide, 0.01-1% of arsenic trioxide, 0.01-1% of antimony oxide, 0.01-3% of phosphorus pentoxide, 0.01-1% of cesium oxide, and 0-2% of a colorant. The preparation method mainly includes: putting the raw materials except liquid blast furnace slag into an auxiliary material melting tank to conduct heating and melting, letting the treated raw materials and the liquid blast furnace slag enter a mixing tank of the slagging furnace together, then making a high-temperature melt enter a melting tank, and then letting the high-temperature melt enter a material channel, subjecting the melt flowing out of the material channel to calendaring molding to obtain a semi-finished glass sheet; and then carrying out annealing and crystallization treatment, thus obtaining the microcrystalline glass.

Description

Technical field [0001] The invention relates to the technical field of glass-ceramics, in particular to a blast furnace hot molten slag glass-ceramics and a preparation method thereof. Background technique [0002] Energy occupies an important position in natural resources. With the development of economy, energy demand will increase substantially, and the contradiction between energy supply and demand will become more prominent. Energy-saving and emission-reduction technologies have become a research hotspot in countries around the world. At present, China’s energy situation is severe, and product energy consumption indicators are too high; therefore, energy conservation will be paid more attention to. The “Eleventh Five-Year Plan for National Economic and Social Development of the People’s Republic of China” approved by the Fourth Session of the Tenth National People’s Congress The "Outline of the Annual Plan" clearly stated that during the "Eleventh Five-Year Plan" period, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03C4/02
CPCC03C4/02C03C10/0063
Inventor 李胜春朱春江陈铁军王品益沈健高晓骏
Owner 宝钢矿棉科技(宁波)有限公司
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