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A kind of preparation method of black rock wool

A technology of rock wool and basalt, applied in the direction of glass manufacturing equipment, manufacturing tools, etc., can solve the problems of fire prevention and smoke barrier, high temperature shrinkage resistance and high temperature stability of the external wall insulation system, and improve the durability Effects of heat, increase in softening point, and increase in low-temperature viscosity

Active Publication Date: 2017-02-22
山东鲁阳玄武岩纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary rock wool products have a maximum service temperature of 650°C, poor high temperature shrinkage resistance and high temperature stability, and cannot meet the fire protection and smoke barrier of special positions in the external wall insulation system.

Method used

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  • A kind of preparation method of black rock wool

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preparation example Construction

[0025] The embodiment of the present invention discloses a method for preparing black rock wool, comprising the following steps:

[0026] (A) melting 300-400 parts by weight of basalt, 200-300 parts by weight of iron ore, 130-220 parts by weight of blast furnace slag and 150-250 parts by weight of coke;

[0027] The amount of oxygen introduced in the melting process is 3-5% of the total mass of basalt, iron ore, blast furnace slag and coke;

[0028] (B) Centrifugal blowing of the melt into fibers;

[0029] (C) collecting the fibers, superimposing them, pressurizing and pleating them, and setting them in a curing oven under high temperature and pressure to obtain black rock wool.

[0030] In the present invention, black rock wool is prepared by using basalt, iron ore, and blast furnace slag as raw materials and coke as an energy source. In the present invention, iron ore and blast furnace slag are used to completely replace alkaline raw materials such as dolomite in ordinary ...

Embodiment 1

[0042] Melting 360 parts by weight of basalt, 200 parts by weight of iron ore, 220 parts by weight of blast furnace slag and 200 parts by weight of coke at 1400 ° C;

[0043] The amount of oxygen introduced in the melting process is 3.5% of the total mass of basalt, iron ore, blast furnace slag and coke;

[0044] The molten material is centrifugally blown and thrown into fibers, and at the same time, the phenolic resin with a mass concentration of 5% is sprayed; the spraying amount of the phenolic resin is 300 kg / ton of product.

[0045] The fibers are collected, superimposed, pressurized and pleated, and cured under high temperature and pressure to obtain black rock wool.

Embodiment 2

[0047] Melting 360 parts by weight of basalt, 240 parts by weight of iron ore, 200 parts by weight of blast furnace slag and 200 parts by weight of coke at 1450 ° C;

[0048] The amount of oxygen introduced in the melting process is 4% of the total mass of basalt, iron ore, blast furnace slag and coke;

[0049]The molten material is centrifugally blown into fibers, and at the same time, phenolic resin with a mass concentration of 5.5% is sprayed; the spraying amount of the phenolic resin is 340 kg / ton of product.

[0050] The fibers are collected, superimposed, pressurized and pleated, and cured under high temperature and pressure to obtain black rock wool.

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Abstract

The invention provides a preparation method of black rock wool. The preparation method comprises the following steps: melting the following components in parts by weight: 300-400 weight parts of basalts, 200-300 weight parts of iron ores, 130-220 weight parts of blast furnace slag and 150-250 weight parts of coke, wherein the introducing amount of oxygen in the melting process accounts for 3-5% of the total mass of the basalts, the iron ores, the blast furnace slag and the coke; centrifuging and blowing off melts to be fibers; and performing wool collection, superposition and pressurized pleating on the fibers, and performing high-temperature pressurized molding in a curing oven to obtain the black rock wool. According to the prepared black rock wool provided by the invention, the temperature of a softening point can be increased, and the heat resistance can also be improved. Experimental results show that the maximum service temperature of the prepared black rock wool provided by the invention can reach 750 DEG C, the duration of fire resistance is more than 2 hours, and the linear shrinkage rate is less than 1.

Description

technical field [0001] The invention relates to the field of fireproof materials, in particular to a preparation method of black rock wool. Background technique [0002] In buildings, the heat loss of the outer envelope structure is relatively large, and the wall accounts for a large share in the outer envelope structure. Therefore, the reform of building walls and the development of energy-saving technology for walls are important links in building energy-saving technologies. Wall insulation technology and energy-saving materials are the main ways to achieve building energy conservation. [0003] External wall insulation technology originated in Europe, and my country began to pilot it in the mid-1980s, and widely used this technology in the construction field. There are many types of external wall insulation materials, including silicate insulation materials, ceramic insulation materials, extruded boards, rigid polyurethane foam insulation boards, rock wool, etc. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/005
CPCC03B37/005C03C13/06
Inventor 鹿俊华张纪军贾菲魏汝奇李春富任明妍
Owner 山东鲁阳玄武岩纤维有限公司
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