V-Ti-magnetite blast furnace smelting method

A blast furnace smelting and vanadium-titanium ore technology, which is applied in the smelting field, can solve the problems of contamination of pig iron and vanadium products, reduce the cost of vanadium extraction, etc., and achieve the effects of avoiding the pollution of molten iron and beneficial elements, reducing iron loss, and avoiding dilution.

Inactive Publication Date: 2009-08-12
邓元忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a blast furnace smelting method for all-vanadium-titanium ore that does not require ore blending. It can overcome the problem that pig iron and vanadium products are polluted. It will be diluted, which can reduce the cost of vanadium extraction

Method used

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Experimental program
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Effect test

Embodiment 1

[0046] The method for smelting vanadium-titanium ore in a blast furnace is characterized in that it comprises the following steps:

[0047] A. Whole-sample analysis: select the unique high-titanium vanadium-titanium magnetite concentrate in Panxi area as raw material for full-sample analysis;

[0048] B. Grouping: grouping according to different analysis results;

[0049] C. Batching: batching each group of concentrates respectively, the weight percentage of the batching component is SiO 2 1-8%, high-titanium vanadium-titanium magnetite concentrate 99%-92%, using sintering ingredients, using binary alkalinity to obtain sintered ore;

[0050] D. Furnace feeding: put the sintered ore in c into the furnace, the furnace temperature is controlled at 1390-1440°C, and the furnace feeding time is 60-150 minutes;

[0051] E, out of the furnace: the proportion of titanium dioxide in the slag is less than 23%. After the furnace is released, the whole sample of the discharged slag is a...

Embodiment 2

[0056] The method for smelting vanadium-titanium ore in a blast furnace is characterized in that it comprises the following steps:

[0057] A. Whole-sample analysis: select the unique high-titanium vanadium-titanium magnetite concentrate in Panxi area as raw material for full-sample analysis;

[0058] B. Grouping: grouping according to different analysis results;

[0059] C. Batching: batching each group of concentrates respectively, the weight percentage of the batching component is SiO 2 2-7%, high-titanium vanadium-titanium magnetite concentrate 98%-93%, using sintering ingredients, using binary alkalinity to obtain sintered ore;

[0060] D. Into the furnace: put the sintered ore in c into the furnace, the furnace temperature is controlled at 1390-1440°C, and the time for entering the furnace is 90-120 minutes;

[0061] E, out of the furnace: the proportion of titanium dioxide in the slag is less than 23%. After the furnace is released, the whole sample of the discharged...

Embodiment 3

[0066] The method for smelting vanadium-titanium ore in a blast furnace is characterized in that it comprises the following steps:

[0067] A. Whole-sample analysis: select the unique high-titanium vanadium-titanium magnetite concentrate in Panxi area as raw material for full-sample analysis;

[0068] B. Grouping: grouping according to different analysis results;

[0069] C. Batching: batching each group of concentrates respectively, the weight percentage of the batching component is SiO 2 4-6%, high-titanium vanadium-titanium magnetite concentrate 96%-94%, using sintering ingredients, using binary alkalinity to obtain sintered ore;

[0070] D. Into the furnace: put the sintered ore in c into the furnace, the furnace temperature is controlled at 1390-1440°C, and the time for entering the furnace is 90-150 minutes;

[0071] E, out of the furnace: the proportion of titanium dioxide in the slag is less than 23%. After the furnace is released, the whole sample of the discharged...

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PUM

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Abstract

The invention relates to smelting technology, in particular to a full vanadium-titanium mineral blast-furnace smelting method, which particularly comprises the following five steps: firstly, analysis of bulk samples; secondly, grouping according to different analysis results; thirdly, proportioning, namely various groups of concentrates are proportioned respectively, the weight percentage of the compositions is as follows: 1 to 8 percent of SiO2 and 99 to 92 percent of high-titanium vanadium-titanium magnetite concentrates, and sintered minerals are obtained by sintered compositions and binary basicity; fourthly, furnace entry, namely the sintered minerals enter a furnace, the furnace temperature is controlled to be between 1,390 and 1,440 DEG C, and the furnace entry time is between 60 and 150 minutes; and fifthly, blast furnace tapping, wherein the proportion of titania in furnace residue is less than 23 percent. The invention can overcome the defect of pollution of pig iron and vanadium products and can effectively reduce the cost of vanadium purification because beneficial elements such as vanadium in molten iron cannot be diluted.

Description

[0001] Field [0002] The invention relates to a smelting technology, in particular to a blast furnace smelting method of all-vanadium-titanium ore. Background technique [0003] The abundant vanadium-titanium magnetite in the Panxi area is high-titanium type, and it is the most difficult to smelt ore in the world. In order to develop and utilize these precious resources, the country has concentrated its national strength three times to carry out technical research and invented China's unique smelting technology. , that is, the spray gun plus the corresponding slagging smelting process solves the problem of iron tapping. [0004] After Panzhihua Iron & Steel was put into operation in the 1970s, the operation of the blast furnace was not smooth, and the utilization coefficient of the blast furnace was not high, which was lower than 1 for a long time. The enterprise suffered losses and production was difficult to organize. In this research, the ore used in the washing furnace w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/02C22B1/16
Inventor 邓兴邓刚邓元忠
Owner 邓元忠
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