Method for producing rock wool

A production method and technology for rock wool, applied in the field of inorganic non-metallic material manufacturing, can solve the problems of low compressive strength and poor quality of rock wool products, and achieve the effect of high compressive strength

Inactive Publication Date: 2012-05-09
HUZHOU LINGJIA THERMAL INSULATION MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality of the rock wool products obtained by the above method is not very good, especially the low compressive strength

Method used

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Embodiment Construction

[0019] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0020] A method for producing rock wool, comprising the steps of:

[0021] ①. Select slag as the main raw material, mix it with basalt or silica, and melt it in the furnace;

[0022] ②. The above-mentioned molten raw materials are drawn into fibers under the action of a centrifuge, and the fibers are blown to the cotton collector; Poor, the slag balls are separated; at the same time, the water-soluble phenolic resin solution as a binder is evenly applied to the fiber surface;

[0023] ③. The fiber forms an initial cotton layer under the action of the cotton collector. At this time, the initial co...

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Abstract

The invention relates to a method for producing rock wool, which comprises the following steps: 1) selecting slag as a principle raw material, adding basalt or silica, and melting in a melting furnace; 2) under the action of a centrifugal machine, drawing the melted materials into fibers, utilizing high-pressure air to blow the fibers into a wool collecting machine, separating out slag balls during a blowing process, and meanwhile, applying a binder onto the surfaces of the fibers; 3) forming the fibers into a primary wool layer under the action of the wool collecting machine, conveying the primary wool layer to a conveyer under the action of a pendulum bob machine, and forming a wool felt of a multilayer folding structure on a conveying belt of the conveyer; 4) preparing the wool felt into structural wool under the action of a pressing pleating machine; and 5) feeding the structural wool into a curing furnace for pressing and forming, and meanwhile, blowing 220-300 DEG C hot air, and curing a water-soluble phenolic resin solution which is used as a binder. The rock wool produced according to the method has the advantage of high compression strength. The method provided by the invention belongs to the field of the manufacturing of an inorganic nonmetallic material.

Description

technical field [0001] The invention relates to a production method of rock wool, which belongs to the field of inorganic non-metallic material production. Background technique [0002] Rock wool products are inorganic fiber products made of slag and ore raw materials. They have excellent heat insulation, sound absorption and fire protection properties, and are widely used in petroleum, electric power, metallurgy, construction and other fields. The current method of producing rock wool is as follows: the slag discharged from blast furnace ironmaking is mixed with auxiliary materials such as basalt or dolomite, and then mixed with coke and poured into the cupola for melting. After melting, it is sprayed out from the furnace nozzle and then passed through a centrifuge to form fine After being blown by the high-pressure air generated by the collecting air ring, the stream becomes rock wool; then, the rock wool is collected by the negative pressure formed by the exhaust fan in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00
Inventor 沈慧林
Owner HUZHOU LINGJIA THERMAL INSULATION MATERIALS
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