Environment-friendly converter steel-making slagging agent and preparation method thereof

An environment-friendly, converter technology, applied in the field of iron and steel metallurgy converter steelmaking, can solve the problems of difficult comprehensive utilization of waste, poor dephosphorization effect, slow slagging speed, etc., achieve internal recycling, increase furnace life, reduce The effect of the amount added

Inactive Publication Date: 2019-02-12
PANZHIHUA GANGCHENG GROUP
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the metallurgical process of steelmaking plants generally has the problem of difficult comprehensive utilization of waste, and the slagging agent often contains CaF 2 , will pollute the environment, and the slagging speed is slow, resulting in poor dephosphorization effect

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Environment-friendly converter steel-making slagging agent and preparation method thereof
  • Environment-friendly converter steel-making slagging agent and preparation method thereof
  • Environment-friendly converter steel-making slagging agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this embodiment, 25 parts by mass of converter dust are homogenized, and then mixed evenly with 10 parts by mass of steelmaking converter sludge, 15 parts by mass of tundish waste dry material, 45 parts by mass of quartz sand, and 5 parts by mass of binder, After pelletizing, drying, and cooling, an environmentally friendly converter steelmaking slag agent was obtained. The components and their mass fractions are shown in Table 1.

[0035] Table 1

[0036] components

[0037] The slagging agent provided by this embodiment has high initial slag formation speed and dephosphorization efficiency; the slagging agent provided by the present invention can recycle iron and magnesium oxide in the sludge, so that the consumption of iron and steel materials is reduced. Slag agent can save 1.26 kg / ton of steel raw materials at the same time.

Embodiment 2

[0039] In this embodiment, 20 parts by mass of dedusting ash from the converter is homogenized, and then mixed evenly with 15 parts by mass of steelmaking converter sludge, 10 parts by mass of tundish waste dry material, 45 parts by mass of quartz sand, and 5 parts by mass of binder, After pelletizing, drying, and cooling, an environmentally friendly converter steelmaking slag agent was obtained. The components and their mass fractions are shown in Table 2.

[0040] Table 2

[0041] components

[0042] The slagging agent provided by this embodiment has high initial slag formation speed and dephosphorization efficiency; the slagging agent provided by the present invention can recycle iron and magnesium oxide in the sludge, so that the consumption of iron and steel materials is reduced. Slag agent can save 1.52 kg / ton of steel raw materials at the same time.

Embodiment 3

[0044] In this embodiment, 30 parts by mass of converter dust are homogenized, and then mixed evenly with 25 parts by mass of steelmaking converter sludge, 15 parts by mass of tundish waste dry material, 45 parts by mass of quartz sand, and 10 parts by mass of binder. After pelletizing, drying, and cooling, an environmentally friendly converter steelmaking slag agent was obtained. The components and their mass fractions are shown in Table 3.

[0045] table 3

[0046] components

[0047] The slagging agent provided by this embodiment has high initial slag formation speed and dephosphorization efficiency; the slagging agent provided by the present invention can recycle iron and magnesium oxide in the sludge, so that the consumption of iron and steel materials is reduced. Slag agent can save 1.47 kg / ton of steel raw materials at the same time.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to an environment-friendly converter steel-making slagging agent and a preparation method thereof, and belongs to the technical field of steel metallurgy converter steel-making.The technical problem that waste comprehensive utilization is difficult in the metallurgical process is solved. The environment-friendly converter steel-making slagging agent is mainly composed of 10-25 parts of steel-making converter sludge, 20-35 parts of steel-making dedust ash, 10-20 parts of tundish waste dry-type material, 40-50 parts of quartz sands and 5-10 parts of binding agents; and themethod comprises the following steps that, firstly, the dedust ash is subjected to the homogenizing treatment, then is uniformly mixed with other raw materials according to the formula, and the pellet slagging agent is prepared by adopting a ball-pressing pelletizing, drying and cooling technology. According to the preparation method, waste resource internal cyclic utilization is realized, and the method has obvious environmental protection and social benefits, the production cost of the steel-making slagging agent product is reduced, and great economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of iron and steel metallurgy converter steelmaking, and in particular relates to an environment-friendly converter steelmaking slag agent and a preparation method thereof. Background technique [0002] Converter slagging is the key operation of converter smelting, and rapid slagging is the core content of converter slagging. In order to achieve a better dephosphorization effect, slag must be formed quickly in the early stage of steelmaking to form a slag with a certain alkalinity, low melting point and good fluidity. The slagging agent is used to promote the rapid slagging of the converter. In addition, in order to protect the lining of the converter, it is usually necessary to add some high-magnesia lime during smelting to increase the MgO content in the slag. However, at present, the metallurgical process of steelmaking plants generally has the problem of difficult comprehensive utilization of waste, and...

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): C21C5/28C21C5/36C21C7/064
CPCC21C5/28C21C5/36C21C7/064Y02P10/20
Inventor 卓胜陈涛黎光正毛朋张远春张昕
Owner PANZHIHUA GANGCHENG GROUP
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