Method for preparing inorganic slag fibers by using iron tailings

A technology of slag fiber and iron tailings, applied in glass manufacturing equipment, manufacturing tools and other directions, can solve the problems of steel slag not being well utilized, comprehensive utilization rate of less than 10%, utilization rate of less than 20%, etc. Environmental benefits, ease of implementation, and the effect of increasing added value

Active Publication Date: 2011-04-13
CHANGZHI HUAXING ENVIRONMENTAL PROTECTION ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vast majority of tailings in my country have not been comprehensively utilized, and the comprehensive utilization rate is less than 10%, especially the utilization rate of iron tailings is even lower
[0008] Steel slag is the metallurgical slag in the steelmaking process, the main components are CaO, MgO and SiO 2 etc. Steel slag has not been well utilized at present, and its utilization rate is less than 20%.

Method used

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  • Method for preparing inorganic slag fibers by using iron tailings
  • Method for preparing inorganic slag fibers by using iron tailings
  • Method for preparing inorganic slag fibers by using iron tailings

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The weight percentage of iron tailings in the mixture is 70%, and blast furnace slag is 30%. Put the mixture into a melting resistance furnace with a temperature of 1600°C. After it is completely melted, let the molten liquid flow into the spinning machine. Under the action of the centrifugal force of the spinning roller, inorganic fibers of different lengths are obtained according to different linear speeds. Simultaneously spray compressed air to cool the obtained inorganic slag fiber filaments, such as figure 2 shown.

Embodiment 2

[0031] Adopt the same preparation method as Example 1, the difference is that the weight percentage of iron tailings in the mixture is 50%, and the inorganic slag fiber obtained at last is as image 3 shown.

Embodiment 3

[0033] Using the same preparation method as in Example 1, the difference is that the temperature of the melting resistance furnace is 1500° C., and a multi-hole spinneret is used to spray into filaments, and the inorganic slag mineral fibers are obtained after cooling.

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Abstract

The invention discloses a method for preparing inorganic slag fibers by using iron tailings, and belongs to the technical field of inorganic nonmetallic material preparation. The method comprises the following steps of: mixing the iron tailings and metallurgical slag, heating the mixture to be a melted state, and preparing the inorganic slag fibers by blowing or throwing, wherein the mixture in the melted state contains 30 to 90 weight percent of iron tailings and 70 to 10 weight percent of blast furnace slag. The method has simple and feasible process, is convenient to implement, realizes comprehensive utilization of different industrial wastes such as the iron tailings, the metallurgical slag and the like, improves the additional value of the comprehensive utilization of the iron tailings, and has good economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic materials, and in particular relates to a method for preparing inorganic slag fibers from iron tailings, so as to realize high value-added utilization of iron tailings. Background technique [0002] Iron tailings is one of the by-products of iron ore beneficiation, and it is the part with the lowest content of useful target components in beneficiation operations. Iron tailings are not completely useless waste, and often contain components that can be used for other purposes. Comprehensive utilization through reasonable processes is expected to achieve full utilization of mineral resources and improve the ecological environment. [0003] With the development of my country's iron and steel industry, ferrous metallurgical mining enterprises have discharged a large amount of industrial waste in the form of tailings. According to statistics, the accumulated amount of iron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00
Inventor 王习东赵大伟张作泰王景峰
Owner CHANGZHI HUAXING ENVIRONMENTAL PROTECTION ENG CO LTD
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