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Iron alloy slag comprehensive treatment method

A comprehensive treatment and ferroalloy technology, applied in the field of comprehensive treatment of ferroalloy slag, can solve the problem of low utilization of ferroalloy slag, achieve high added value, reduce production costs, and improve the level of recycling.

Inactive Publication Date: 2018-03-02
RIZHAO STEEL HLDG GROUP
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Problems solved by technology

[0006] In view of the above problems, the object of the present invention is to provide a comprehensive treatment method for ferroalloy slag to solve the problem of low utilization of ferroalloy slag, realize zero discharge of ferroalloy slag, reduce the production cost of slag powder, improve the recycling level of ferroalloy slag and high additional value use

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  • Iron alloy slag comprehensive treatment method

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Embodiment Construction

[0025] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details.

[0026] Aiming at the problem of low utilization of ferroalloy slag mentioned above, the present invention proposes a comprehensive treatment method for ferroalloy slag, which realizes zero discharge of ferroalloy slag, reduces the production cost of slag powder, improves the recycling level of ferroalloy slag, and has high added value.

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In order to illustrate the process flow of the ferroalloy slag comprehensive treatment method provided by the present invention, figure 1 The flow chart of the comprehensive treatment method for ferroalloy slag according to th...

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Abstract

The present invention provides an iron alloy slag comprehensive treatment method, which comprises: mixing iron alloy slag and blast furnace water quenching slag, and conveying to a middle bin; conveying the mixed slag in the middle bin to a vertical roll mill; carrying out powder milling on the mixed slag by using the vertical roll moll to form powder while drying the mixed slag in the vertical roll mill and the powder by using a hot air furnace; conveying the dried powder to a powder sorting machine; and screening the dried powder through the powder sorting machine, wherein the qualified powder is collected by a dust collector, and the unqualified powder enters the vertical roll mill again so as to be subjected to power milling. With the iron alloy slag comprehensive treatment method of the present invention, the problem that the iron alloy slag utilization is low can be solved.

Description

technical field [0001] The invention relates to the technical field of waste slag utilization, and more specifically, to a comprehensive treatment method for ferroalloy slag. Background technique [0002] The manganese slag produced by silicomanganese alloy smelting is mainly supplied to the production of building materials. Due to the low activity of manganese slag and the low consumption of building materials, the inventory of manganese slag is backlogged. The raw materials for the production of granulated blast furnace slag powder are all blast furnace water-quenched slag, and the direct material cost is 23.17 yuan / ton higher than that of ferroalloy slag. [0003] Ferroalloy slag is a by-product of ferroalloy production, and its comprehensive utilization level is low due to its composition and activity. Through research, it is found that the chemical composition of ferroalloy slag is CaO, SiO 2 and Al 2 o 3 Mainly, the vitreous body content is about 80%, and it has th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/04
CPCC21B3/04Y02P10/20Y02W30/50
Inventor 徐春明杨哲左成义陈立想刘凡录周加文梁晓杰韩西安
Owner RIZHAO STEEL HLDG GROUP
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