Process for smelting common silicomanganese alloy by smelting electric furnace to quickly convert high-silicon silicon-manganese alloy

A high-silicon-silicon-manganese alloy and silicon-manganese alloy technology, which is applied in the field of ferroalloy production, can solve the problems of long transition period and many transition products for converting high-silicon silicon-manganese alloy, and achieve long transition period, less transition products, and shortened iron casting. effect of time

Inactive Publication Date: 2021-03-02
嘉峪关宏电铁合金有限责任公司
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a process for smelting ordinary silicomanganese alloys into high-silicon-silicon-manganese alloys quickly in a submerged arc furnace, so as to solve the problems of long transition period and many transitional products in the conversion of ordinary silicomanganese to high-silicon-silicon-manganese alloys

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The process of smelting ordinary silicomanganese alloys in submerged arc furnaces and quickly converting high-silicon silicon-manganese alloys includes the following steps:

[0042] (1) batching; batching comprises manganese ore batching and coke batching, and manganese ore batching, by weight, comprises 35 parts of low-phosphorus low-iron manganese ore, 45 parts of low-phosphorus high-alkalinity middle-grade manganese ore, 10 parts of self-produced slag, coke batching, In parts by weight, 60 parts of low-phosphorus coke with a particle size of 20mm, 45 parts of chemical coke with a particle size of 10mm, and in parts by weight, the ingredients also include 10 parts of coke and 8 parts of silica. The above-mentioned ingredients are the first 100 batches of materials, 100 batches After the material is removed, coke and silica are no longer added;

[0043](2) Adjust the condition of the submerged arc furnace 3 days before the conversion, insert the electrode deeply, the e...

Embodiment 2

[0051] The process of smelting ordinary silicomanganese alloys in submerged arc furnaces and quickly converting high-silicon silicon-manganese alloys includes the following steps:

[0052] (1) batching; batching comprises manganese ore batching and coke batching, and manganese ore batching, by weight, comprises 40 parts of low-phosphorus and low-iron manganese ore, 43 parts of low-phosphorus high-alkalinity middle-grade manganese ore, 12 parts of self-produced slag, coke batching, In parts by weight, there are 58 parts of low-phosphorus coke with a particle size of 30mm, and 42 parts of chemical coke with a particle size of 20mm. In parts by weight, the ingredients also include 12 parts of coke and 10 parts of silica. After the material is removed, coke and silica are no longer added;

[0053] (2) Adjust the condition of the submerged arc furnace 3 days before the conversion, insert the electrode deeply, the electrode limit is at the middle and lower limit position, increase t...

Embodiment 3

[0061] The process of smelting ordinary silicomanganese alloys in submerged arc furnaces and quickly converting high-silicon silicon-manganese alloys includes the following steps:

[0062] (1) batching; batching comprises manganese ore batching and coke batching, and manganese ore batching, by weight, comprises 45 parts of low-phosphorus low-iron manganese ore, 50 parts of low-phosphorus high-alkalinity middle-grade manganese ore, 15 parts of self-produced slag, coke batching, In parts by weight, 55 parts of low-phosphorus coke with a particle size of 40mm, 40 parts of chemical coke with a particle size of 30mm, and in parts by weight, the ingredients also include 15 parts of coke and 12 parts of silica. After the material is removed, coke and silica are no longer added;

[0063] (2) Adjust the condition of the submerged arc furnace 3 days before the conversion, insert the electrode deeply, the electrode limit is at the middle and lower limit position, increase the amount of c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a process for smelting common silicomanganese alloy by a smelting electric furnace to quickly convert high-silicon silicomanganese alloy, which belongs to the technical field of ferroalloy production, and particularly relates to a process for smelting different varieties of silicomanganese alloys to solve the problems of a long transition period and more transition productsof the common silicomanganese smelting high-silicon silicomanganese alloy. The process comprises the following steps of: (1) proportioning; (2) preparing before transition smelting; (3) adjusting thecoke type; (4) ensuring that the high-silicon silicon-manganese material can enter the smelting electric furnace at the same time one day before transition smelting; (5) making the basicity of the slag in the transition period of transition smelting to be 1.1 times of the basicity in the conventional transition smelting process; (6) enabling tapping time to be not shorter than 40 min; and (7) dephosphorizing outside the smelting electric furnace, adding lime powder or fluorite powder when the liquid level of slag iron in the ladle reaches 1 / 3, and stopping adding until the P component in thehigh-silicon silicomanganese alloy reaches the standard. The transition period of transition smelting is shortened to be within one day, the alloy quality cashing rate is increased by 20% or above, the recovery rate is increased by about 2%, transition products are few, and various consumptions are greatly reduced.

Description

technical field [0001] The invention relates to a process for smelting ordinary silicon-manganese alloys and quickly converting high-silicon-manganese alloys into high-silicon-manganese alloys in a submerged arc furnace. Background technique [0002] Silicon-manganese alloy is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. It is a ferroalloy with wide application and large output. Manganese-silicon alloy is a compound deoxidizer commonly used in steelmaking, and it is also a reducing agent for the production of medium and low carbon ferromanganese and the production of metal manganese by electrosilicothermal method. [0003] High silicon silicon manganese, also known as low carbon silicon manganese. As a name, it is different from ordinary silicomanganese, first of all, it is different from ordinary silicomanganese in elemental composition: high silicon silicomanganese generally contains high silicon (Si>22%), and the conte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C22/00C22B4/06
CPCC22B4/06C22C1/02C22C22/00
Inventor 曾仁福闫好青马智冯选杰曾仁国孙伟王先武江忠
Owner 嘉峪关宏电铁合金有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap