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Silicon manganese slag rock/mineral wool product and preparation method thereof

A technology for silico-manganese slag and cotton products, which is applied in the field of silico-manganese slag/mineral wool products and their preparation, can solve the problems that high-quality mineral wool is difficult to succeed, etc., and achieve the effect of obvious quenching and tempering effect.

Pending Publication Date: 2020-02-11
青岛青力环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the above problems, proposes a calculation method for correcting the acidity coefficient and provides a method using loess as a conditioning material, which solves the problem that it is difficult to successfully prepare high-quality mineral wool after conditioning silicomanganese slag, and corrects the acidity Coefficient Mk * = 1.5-1.6, when the viscosity of silicomanganese hot slag after quenching and tempering is 11-7Pa·S, the corresponding temperature is 1360-1420°C, the property of slag is long, and the rock (mineral) wool prepared by sensible heat new one-step process Combustion performance meets the technical requirements of flat-shaped building materials and products A (A1) grade non-combustible materials (products) in the standard GB8624-2012, appearance, size and tolerance, dimensional stability, thermal conductivity, average fiber diameter, slag ball content, The mass moisture absorption rate, water repellency rate, short-term water immersion rate, acidity coefficient, compressive strength and tensile strength perpendicular to the surface all meet the technical requirements of rock wool products GB / T25975-2010 rock wool board for building exterior wall insulation. The technical solution is as follows:

Method used

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  • Silicon manganese slag rock/mineral wool product and preparation method thereof
  • Silicon manganese slag rock/mineral wool product and preparation method thereof
  • Silicon manganese slag rock/mineral wool product and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A kind of silico-manganese slag rock / mineral wool product of the present embodiment mainly consists of the following components in parts by mass: SiO 2 30-35 parts, Al 2 o 3 5-10 parts, CaO 20-25 parts, MgO 3-8 parts, MnO 10-15 parts, TFe 1-5 parts, K 2 O 3-6 parts, the corrected acidity coefficient Mk of the described silicomanganese slag rock / mineral wool products * 1.3, when the viscosity is 11-7Pa·S, the corresponding temperature is 1290-1350℃, showing short slag properties;

[0017] Corrected acidity coefficient Mk * Calculated as follows:

[0018]

[0019] for SiO 2 the weight of; for Al 2 o 3 weight; W CaO is the weight of CaO; W MgO is the weight of MgO; W MnO is the weight of MnO; W TFe is the weight of TFe; for K 2 O's weight.

[0020] A method for preparing the above-mentioned silicomanganese slag rock / mineral wool products. The silicon-manganese alloy hot slag flows into the tempering electric furnace through the ladle, adds the loess...

Embodiment 2

[0023] A kind of silico-manganese slag rock / mineral wool product of the present embodiment mainly consists of the following components in parts by mass: SiO 2 32-37 copies, Al 2 o 3 7-12 parts, 20-25 parts of CaO, 2-6 parts of MgO, 9-14 parts of MnO, 1-5 parts of TFe, K 2 O 3-6 parts, the corrected acidity coefficient Mk of the described silicomanganese slag rock / mineral wool products * 1.4, when the viscosity is 11-7Pa·S, the corresponding temperature is 1320-1380℃, showing short slag properties;

[0024] Corrected acidity coefficient Mk * Calculated as follows:

[0025]

[0026] for SiO 2 the weight of; for Al 2 o 3 weight; W CaO is the weight of CaO; W MgO is the weight of MgO; W MnO is the weight of MnO; W TFe is the weight of TFe; for K 2 O's weight.

Embodiment 3

[0028] A kind of silico-manganese slag rock / mineral wool product of the present embodiment mainly consists of the following components in parts by mass: SiO 2 35-40 parts, Al 2 o 3 7-12 parts, 20-25 parts of CaO, 2-7 parts of MgO, 8-13 parts of MnO, 1-5 parts of TFe, K 2 O 2-5 parts, the corrected acidity coefficient Mk of the described silicomanganese slag rock / mineral wool product * When the viscosity is 1.5 and the viscosity is 11-7Pa·S, the corresponding temperature is 1340-1410℃, showing the property of long slag;

[0029] Corrected acidity coefficient Mk * Calculated as follows:

[0030]

[0031] for SiO 2 the weight of; for Al 2 o 3 weight; W CaO is the weight of CaO; W MgO is the weight of MgO; WMnO is the weight of MnO; W TFe is the weight of TFe; for K 2 O's weight.

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Abstract

The invention relates to a silicon manganese slag rock / mineral wool product and a preparation method thereof. The product is mainly composed of, by mass, 30-50 parts of SiO2, 5-19 parts of Al2O3, 17-25 parts of CaO, 2-8 parts of MgO, 1-15 parts of MnO, 1-5 parts of TFe and 1-6 parts of K2O, wherein corrected acidity coefficient Mk* of the product is 1.2-1.7, and Mk*=Wt%(SiO2+Al2O3) / Wt%(CaO+MgO+MnO+TFe+K2O). A method of taking loess as a conditioning material is provided, the problem of difficulty in successfully preparing high-quality mineral wool after silicon manganese slag is conditioned issolved, the corrected acidity coefficient Mk*is 1.2-1.7, viscosity of silicon manganese hot melt slag after conditioning is 11-7Pa.S, corresponding temperature is 1360-1420 DEG C, long slag attributes are presented, and optimal optimization proportion is realized.

Description

technical field [0001] The invention relates to a silico-manganese slag rock / mineral wool product and a preparation method thereof. Background technique [0002] While the vigorous development of the silicon-manganese alloy industry has brought huge economic benefits to the society, it has also produced a large amount of industrial solid waste. When smelting alloys, 1.2-1.3 tons of hot slag is usually produced for every 1 ton of alloy produced. The hot slag is washed away and cooled by high-pressure water, enters the pool with the water, and then salvaged and loaded to the designated site for stacking. This not only takes up valuable land resources, wastes thermal energy resources, but also affects the surrounding ecological environment and human health. pose a certain potential threat. Silicon-manganese alloy smelting slag is a secondary resource with high utilization value, and it will be a development trend in the future to use ferroalloy slag with high added value. If...

Claims

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Application Information

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IPC IPC(8): D04H1/4209D04H1/58C03C13/06C03B37/00
CPCD04H1/4209D04H1/58C03C13/06C03B37/00
Inventor 张思奇于阔沛隋成富宁常飞赵志坤
Owner 青岛青力环保设备有限公司
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