Unlock instant, AI-driven research and patent intelligence for your innovation.

Medium-titanium high-strength sintered ore and preparation method thereof

A sinter and high-strength technology, which is applied in the field of medium-titanium high-strength sinter and its preparation, can solve the problems of poor strength, high return rate of medium-titanium sinter, and low yield, so as to improve the granulation performance Effect

Inactive Publication Date: 2015-04-29
HEBEI IRON AND STEEL
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above factors lead to low SiO 2 content, high TiO 2 The medium-titanium sinter produced with high vanadium-titanium magnetite concentrate as the main raw material has a high return rate, low yield, and poor strength. The drum index is generally only about 73% to 75%, which also leads to the utilization factor per unit area of ​​the sintering machine. lower

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
  • Medium-titanium high-strength sintered ore and preparation method thereof
  • Medium-titanium high-strength sintered ore and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0029] Examples 1 to 3: The medium-titanium-type high-strength sinter adopts the following preparation process.

[0030] The medium-titanium-type high-strength sintered ore is produced by the above method. The specific implementation is described as follows: Table 1 shows the particle size of the raw materials in the embodiment, Table 2 shows the raw material ratio of the embodiment, and Table 3 shows the process parameters and technical and economic indicators of the embodiment.

[0031] Table 1: Example raw material particle size (wt%)

[0032]

[0033] Table 2: Examples of raw material ratio (wt%)

[0034]

[0035] Table 3: Example process parameters and technical and economic indicators

[0036] .

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 medium-titanium high-strength sintered ore which is formed by sintering the following ingredients by weight percentage: 78-86% of iron-bearing material, 9-12% of quicklime, 1-4% of lightly fired dolomite and 4-6% of fuel, wherein the iron-bearing material comprises the following components by weight percentage: 40-50% of vanadium titanium magnetite concentrate, 5-20% of common fine iron powder, 25-40% of coarse ore powder and 0-8% of miscellaneous material. The sintered ore is produced by taking a vanadium titanium magnetite and the vanadium titanium magnetite concentrate as main raw materials; the pelletizing performance of a mixture is improved by reasonably preparing and adding other iron ore powder and fluxes; component and phase composition of the sintered ore is controlled; an influence of higher TiO2 content in the sintered ore on the quality of the sintered ore is reduced; a tumbler index of the sintered ore reaches above 77% when the medium-titanium sintered ore is produced; the sintered ore is high in cold strength and low in return rate; and the sintered ore is smelted via a blast furnace, so that a fuel ratio is reduced and a utilization coefficient is increased.

Description

Technical field [0001] The invention relates to a technology for agglomeration of vanadium-titanium magnetite concentrate sinter, in particular to a medium-titanium type high-strength sinter and a preparation method thereof. Background technique [0002] Vanadium-titanium magnetite is a kind of multi-metal element composite ore, which is a magnetite containing iron, vanadium, and titanium as the main multi-metal element symbiosis. Vanadium-titanium magnetite is generally SiO 2 Low content, TiO 2 The content is higher. Vanadium titanium magnetite concentrate in Chengde area, low silicon (SiO 2 The content is about 3.4wt%), containing vanadium (V 2 O 5 Content 0.3~0.6wt%), containing titanium (TiO 2 Content 2.0~4.0wt%), poor water absorption, difficult for sintering production. [0003] Because the SiO in this vanadium-titanium magnetite concentrate 2 The content is low, and the amount of liquid phase produced during sintering is insufficient. The content of ordinary silicate binder ...

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): C22B1/16
CPCC22B1/16
Inventor 李鹏隋孝利陈树军董志民赵思强徐桂芬
Owner HEBEI IRON AND STEEL