Method for preparing inorganic fiber fused mass from blast furnace molten slag

A technology of inorganic fiber and blast furnace slag, applied in glass manufacturing equipment, manufacturing tools, etc., can solve problems such as unreasonable process, difficulty in melting and homogenizing flux, and achieve the effects of ensuring product quality, reducing carbon emissions, and saving energy

Inactive Publication Date: 2010-08-04
杨锦耀
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The task of the present invention is to provide a method for preparing inorganic fiber melt from blast furnace slag, which solves the problem of melting and homogenizing solid auxiliary raw materials and slag together in the prior art, which is unreasonable in technology and the flux of the flux There are problems such as great difficulty in melting and homogenization
Then guide the inorganic fiber melt to the fiber forming process to form fibers

Method used

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  • Method for preparing inorganic fiber fused mass from blast furnace molten slag
  • Method for preparing inorganic fiber fused mass from blast furnace molten slag

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Coal gangue and a small amount of flux are melted in a kiln, the blast furnace slag flows into the crucible furnace through the slag ditch, and the quality of the slag in the crucible furnace is measured. The molten coal gangue is added to the crucible furnace, and after stirring, temperature measurement and control to 1300 ° C, the melt is guided to the fiber forming process to form fibers. Compared with the traditional process, the range of energy saving and emission reduction is more than 35%.

Embodiment 2

[0018] Fly ash and a small amount of flux are melted in a kiln, and the blast furnace slag flows into the crucible furnace through the slag ditch. Add the molten fly ash to the crucible furnace, and after stirring, measuring and controlling the temperature to 1300°C, the melt is guided to the fiber forming process to form fibers. Compared with the traditional process, the range of energy saving and emission reduction is more than 40%.

[0019] According to the method of the present invention, the added molten other raw materials can be added after the slag is introduced into the crucible furnace; it can also be added during the introduction of the slag into the crucible furnace; it can also be added at the same time when the slag is introduced into the crucible furnace. Add; or add before the slag is introduced into the crucible furnace.

[0020] The added molten other raw materials may be in a fully molten state; or in a semi-molten state.

[0021] According to the method o...

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Abstract

The invention relates to a method for preparing inorganic fiber fused mass from blast furnace fused slag, which utilizes fused slag discharged by a blast furnace or an electric furnace. The method comprises the following steps: introducing the fused slag into accommodating equipment; metering the mass of the fused slag; proportionally adding other fused ingredients, wherein the temperature of other fused ingredients is between 600 and 1700 DEG C; then, mixing other fused ingredients and the fused slag into uniform fused mass through stirring; and measuring and controlling the temperature of the inorganic fused mass so that the chemical composition, the temperature, the viscosity and the like of the fused mass meet the inorganic fiber forming requirement to obtain the inorganic fiber fused mass. The inorganic fiber fused mass prepared by adopting the method of the invention can be used for preparing various kinds of inorganic fiber. The method mainly has the following advantages: (1) various kinds of industrial furnace slag, such as blast furnace fused mineral slag, electric furnace fused phosphorous slag, iron alloy fused slag, cyclone furnace liquid state slag and the like can be utilized; (2) the sensible heat of the industrial furnace slag is fully utilized, a large number of energy sources are saved, and the carbon discharge is greatly reduced; and (3) the technology is reasonable and advanced, various kinds of inorganic fiber can be prepared, and the stability of the product quality can be ensured.

Description

technical field [0001] The present invention relates to a method for preparing inorganic fiber melt, in particular to a method for preparing inorganic fiber melt from blast furnace slag. It belongs to the field of inorganic fiber preparation. Background technique [0002] Chinese Patent Publication No. CN1418834A discloses a new one-step mineral wool technology for efficiently utilizing the sensible heat of industrial furnace slag. At the same time, the industrial slag is heated in the homogenization furnace, and its chemical composition, temperature and viscosity are adjusted to the range required by the mineral wool melt, that is, the acidity coefficient of the melt reaches 1.1 to 1.8 (acidity coefficient = SiO2+ Al2O3 / CaO+MgO), the melt temperature is 1300-1340 ℃, and the chemical composition of the mineral wool melt is homogenized. Then the quenched and tempered melt is guided to a high-speed centrifuge to enter the mineral wool fiber-forming process. However, the sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00
Inventor 杨锦耀
Owner 杨锦耀
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