Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag

A quenching and tempering treatment and slag technology, which is applied in the field of smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag, can solve the problems of low production cost, high metal recovery rate, short reaction time, etc., and achieve the effect of efficient recovery

Active Publication Date: 2018-08-28
NORTHEASTERN UNIV LIAONING
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the invention has short reaction time, high metal recovery rate, low production cost, strong raw material adaptability, large processing capacity, environmental friendliness, high economic benefits, and can effectively solve the problem of efficient recovery and utilization of metallurgical resources and heat energy in multi-metal composite mines

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
  • A method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] A method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag, specifically comprising the following steps:

[0148] Step 1, smelting reduction:

[0149] (1) Material mixing and melting:

[0150] The liquid molten titanium-containing blast furnace slag and converter vanadium-titanium molten steel slag flowing out of the slag outlet are added to the thermal insulation pit whose inner layer is graphite-dolomite composite thermal insulation refractory material to form titanium-containing mixed slag, which is added to the titanium-containing mixed molten slag. Coal powder, vanadium-containing titanium steel slag and ordinary iron concentrate metallized pellets are added to the slag to form a mixed slag. The temperature is raised to 1500°C, and the mixed slag is heated to a molten state for smelting reduction, and the two parameters (a) and (b) are guaranteed at the same time through regulation:

[0151] (a) The temperat...

Embodiment 2

[0172] A method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag, specifically comprising the following steps:

[0173] Step 1, smelting reduction:

[0174] (1) Material mixing and melting:

[0175] The liquid molten titanium-containing blast furnace slag and converter vanadium-titanium molten steel slag flowing out of the slag outlet are added to the pourable thermal insulation slag tank of graphite-silicon composite thermal insulation refractory material to form titanium-containing mixed slag, and the titanium-containing mixed slag Add coke powder and fluorite to form a mixed slag. The temperature of the mixed slag is 1410°C when mixing. Use a refractory spray gun to insert the slag and blow into the coal powder, and add vanadium-containing titanium molten steel slag to increase the temperature of the mixed slag. To 1480°C, the mixed slag is heated to a molten state for smelting reduction, and the two parameters (a) a...

Embodiment 3

[0199] A method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag, specifically comprising the following steps:

[0200] Step 1, smelting reduction:

[0201] (1) Material mixing and melting:

[0202] Add the liquid molten titanium-containing blast furnace slag and converter vanadium-titanium molten steel slag flowing out of the slag outlet into the converter whose inner layer is pitch-magnesium composite thermal insulation refractory material to form titanium-containing mixed slag, and add titanium-containing mixed slag Bituminous coal, ordinary iron concentrate, and ordinary iron concentrate directly reduce iron to form a mixed slag. The temperature of the mixed slag is 1460°C when mixing, and the refractory spray gun is inserted into the slag and blown into coal powder, and the mixed slag is heated to 1500°C , the mixed slag is heated to a molten state for smelting reduction, and the two parameters (a) and (b) are guar...

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

Disclosed is a method for smelting reduction production and tempering of a titaniferous mixed slag, comprising the following steps: (1) adding a reduction agent, a vanadium-titanium-containing mineral and / or an iron-containing material to the titanium-containing mixed slag, heating same to a set temperature to enable the mixed slag to be in a molten state, and injecting an oxidizing gas for smelting reduction and oxidation; the temperature range of the mixed slag and the alkalinity CaO / SiO2 ratio range being controlled during the process; and (2) carrying out separation and recycling according to different reaction devices. According to the method, the titanium component, the iron component, the vanadium component, the phosphorus component and the free calcium oxide component in the mixed slag can be recycled efficiently; solid-state materials containing vanadium, titanium and iron can be processed on a large scale by using a smelting reduction ironmaking technology for the production of high-grade titanium slag and vanadium-enriched slag, and at the same time, the tempering of the slag and efficient and comprehensive utilization of the resources can be realized.

Description

technical field [0001] The invention belongs to the field of non-blast furnace ironmaking and resource comprehensive utilization, and specifically relates to a method for smelting reduction production and quenching and tempering treatment of titanium-containing mixed slag. Background technique [0002] In today's world, the production of blast furnace ironmaking is developing unprecedentedly, the scale of blast furnace is expanding continuously, the production consumption of blast furnace is decreasing, and the cost is lowered. It is still the main force of steel production. Production encountered huge challenges, the details are as follows: [0003] (1) Blast furnace has a long production process from raw material pretreatment, pelletizing plant, sintering plant, coking plant, and blast furnace ironmaking, and the total investment is very huge; [0004] (2) Strong dependence on metallurgical coke. With the increasingly scarce coking coal resources, the price of metallurgi...

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 Patents(China)
IPC IPC(8): C21B3/06C21B11/00C22B7/04C22B34/12C22B34/22
CPCC21B3/06C21B11/00C22B7/001C22B7/04C22B34/1222C22B34/1227C22B34/22Y02P10/20Y02W30/50
Inventor 张力张武
Owner NORTHEASTERN UNIV LIAONING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com