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Steel hot molten slag mineral cotton and its making method

A technology of hot slag and mineral wool, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problem that heat cannot be recycled, achieve good economic and social benefits, save energy, and have a wide acidity coefficient.

Inactive Publication Date: 2015-01-28
宝钢矿棉科技(宁波)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, most blast furnace slags at home and abroad are mainly water-quenched, and the heat cannot be recycled.

Method used

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  • Steel hot molten slag mineral cotton and its making method
  • Steel hot molten slag mineral cotton and its making method
  • Steel hot molten slag mineral cotton and its making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of iron and steel hot slag mineral wool, its raw material composition mass percentage is:

[0046] Liquid blast furnace slag 70%

[0047] Conditioner 30%

[0048] The particle size of the conditioning material is 40-80 mesh; the conditioning material is composed of albite and silica sand.

[0049] A method for preparing iron and steel hot slag mineral wool (for the process flow, see image 3 ), the steps are:

[0050] ①Introduce the hot blast furnace slag directly into the primary melting zone of the slag furnace 2 through the slag tank 1, place the hopper 3 above the junction of the slag tank 1 and the slag furnace 2, and install the conditioning material in the hopper 3, and the conditioning material Together with the hot blast furnace slag, it enters into the initial melting zone of the slag furnace 2 (see figure 1 ). Such as figure 2 As shown, the cross-section of the slag tank 1 is semicircular, and the slag tank 1 is a composite structu...

Embodiment 2

[0057] A kind of iron and steel hot slag mineral wool, its raw material composition mass percentage is:

[0058] Liquid blast furnace slag 80%

[0059] Conditioner 20%

[0060] The particle size of the tempering material is 40-60 mesh; the tempering material is composed of albite, silica sand and basalt.

[0061] A method for preparing iron and steel hot slag mineral wool, the steps are:

[0062] ①Introduce the hot blast furnace slag directly into the primary melting zone of the slag furnace 2 through the slag tank 1, place the hopper 3 above the junction of the slag tank 1 and the slag furnace 2, and install the conditioning material in the hopper 3, and the conditioning material Together with the hot blast furnace slag, it enters into the initial melting zone of the slag furnace 2 (see figure 1 ). Such as figure 2 As shown, the cross-section of the slag tank 1 is semicircular, and the slag tank 1 is a composite structure. The slag tank 1 includes a refrac...

Embodiment 3

[0069] A kind of iron and steel hot slag mineral wool, its raw material composition mass percentage is:

[0070] Liquid blast furnace slag 85%

[0071] Conditioner 15%

[0072] The particle size of the tempering material is 40-80 mesh; the tempering material is composed of albite and basalt.

[0073] A method for preparing iron and steel hot slag mineral wool, the steps are:

[0074]①Introduce the hot blast furnace slag directly into the primary melting zone of the slag furnace 2 through the slag tank 1, place the hopper 3 above the junction of the slag tank 1 and the slag furnace 2, and install the conditioning material in the hopper 3, and the conditioning material Together with the hot blast furnace slag, it enters into the initial melting zone of the slag furnace 2 (see figure 1 ). Such as figure 2 As shown, the cross-section of the slag tank 1 is semicircular, and the slag tank 1 is a composite structure. The slag tank 1 includes a refractory material ...

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Abstract

The invention relates to the technical field of mineral wool production and discloses a steel hot molten slag mineral cotton and its making method. The raw materials of the steel hot molten slag mineral cotton comprise 70-90% by mass of molten blast furnace slag and 10-30% by mass of a tempering material. The making method mainly comprises the following steps: directly introducing the hot molten slag to the initial melting zone of a slag melting furnace through a slag tank, and allowing the tempering material and the hot molten blast furnace slag to enter the initial melting zone of the slag melting furnace together; and maintaining the temperature of a melt in the initial melting zone in a range of 1400-1500DEG C for 4-6h, then allowing the melt to enter a primary melting zone, maintaining the temperature of the melt in the primary melting zone in a range of 1420-1450DEG C for 6-9h, then allowing the melt to enter a material discharge zone, and allowing the melt to flow to the roller of a centrifuge to form raw cotton. The preparation method has the advantages of energy saving, consumption reduction and simple process flow, and the prepared mineral cotton has the characteristics of good vitreous state, high fiber formation rate, wide adjustment range of the acidity coefficient and the like, and can satisfy the diversification demands of the market.

Description

technical field [0001] The invention relates to the technical field of mineral wool production, in particular to a hot iron and steel slag mineral wool and a preparation method thereof. Background technique [0002] With the rapid development of the global economy, the problem of energy shortage is becoming more and more serious, and the technology of energy saving and emission reduction has become a research hotspot all over the world. At present, my country's energy situation is severe, and the product energy consumption index is too high. The energy consumption per unit of the main energy-consuming products is 25-90% higher than that of developed countries (the weighted average is about 40% higher); secondly, the energy consumption of the output value is high. Energy consumption is one of the highest in the world. For example, for every kilogram of oil equivalent of energy, Japanese companies can create an average output value of 10.2 US dollars, while China can only creat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/06C03B37/005
Inventor 张耀朱爱萍陈铁军朱春江李军李胜春沈健高晓骏
Owner 宝钢矿棉科技(宁波)有限公司
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