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Ferrotitanium alloy electric induction furnace smelting method

An induction electric furnace and ferro-titanium technology, which is applied in the field of metal smelting, can solve the problems of inability to smelt rutile-type ferro-titanium alloy, difficulty in producing products, and high production costs, and achieve the effect of simple process, easy operation and low cost

Inactive Publication Date: 2008-07-23
苏永山 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires the use of titanium waste and steel. The production cost is too high, the output is low, and the raw materials are in short supply. Most of the raw materials are imported. At the same time, due to its own structure, ordinary induction furnaces cannot withstand the high temperature of more than 3000 °C generated when reducing titanium dioxide, so induction furnaces cannot be used to smelt rutile titanium-iron alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The ferro-titanium alloy induction furnace smelting method includes the following process steps:

[0029] Step 1: Add ilmenite, rutile, quicklime, steel, ferrosilicon and other minerals into the crucible of an ordinary induction furnace according to the following proportions, and heat to 1800-1900°C to completely melt the minerals in the crucible;

[0030] Raw material proportioning of the present invention is:

[0031] Titanium concentrate (TiO 2 ≥46) 50~55 parts by weight

[0032] Rutile (TiO 2 ≥90%) 15~18 parts by weight

[0033] Quicklime (CaO≥87%) 5-6 parts by weight

[0034] Steel 4-5 parts by weight

[0035] Ferrosilicon (Si≥73%) 1-2 parts by weight

[0036] Aluminum particles (Al≥97%) 44-50 parts by weight

[0037] Potassium chlorate (KClO 3 ≥98%) 1.6~2 parts by weight

[0038] Step 2: Pour the completely melted ore in the crucible of an ordinary induction furnace into a high-temperature-resistant smelting furnace or crucible that can withstand temperat...

Embodiment 2

[0041] The ratio of raw materials for ferro-titanium alloy induction furnace smelting method is:

[0042] Titanium concentrate (TiO 2 ≥46) 65~70 parts by weight

[0043] Rutile (TiO 2 ≥90%) 25~30 parts by weight

[0044] Quicklime (CaO≥87%) 8-10 parts by weight

[0045] Steel 7-8 parts by weight

[0046] Ferrosilicon (Si≥73%) 5-6 parts by weight

[0047] Aluminum particles (Al≥97%) 55-60 parts by weight

[0048] Potassium chlorate (KClO 3 ≥98%) 2.6~3 parts by weight

[0049] Its processing step is identical with embodiment 1.

[0050] The present invention has been successfully applied to a 1000Kg intermediate frequency induction furnace to produce ferro-titanium alloy with a titanium content of 41%. The economic indicators are as follows:

[0051] Furnace output: 0.5 tons / furnace

[0052] Daily output: 4 tons

[0053] Unit power consumption: 2800~3000KW·h / ton

[0054] Titanium content in the alloy: 40-41%

[0055] Impurity content: lower than the national standar...

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Abstract

The invention relates to a smelting method for a ferrotitanium alloy electric induction furnace, which comprises following steps: adding titanium concentrate, rutile, lime, steel and other ore charges in a crucible of an ordinary electric induction furnace according to proportion; heating to 1800 to 2200 DEG C; pouring the ore charges in the crucible into a smelting furnace or a crucible which is resistant to high temperature of over 3000 DEG C after being completely melted; adding the reducing agent metallic aluminum particles and heat enhancer potassium chlorate in the completely melted ore charges; increasing the temperature in the furnace to over 3000 DEG C by means of reduction heat released by metallic aluminum, so as to reduce the titanium dioxide in the ore charges into titanium metal which is aggregated into ferrotitanium alloy with iron; cooling the aggregated ferrotitanium alloy with the high temperature resistant smelting furnace or crucible to below 500 DEG C; taking the solidified ferrotitanium alloy integrally from the high temperature resistant smelting furnace or crucible and putting into cooling pond for cooling. The smelting method for the ferrotitanium alloy electric induction furnace has the advantages of advanced process, convenient working procedure, easy operation, low cost, low energy consumption, high yield and stable product quality.

Description

technical field [0001] The invention relates to a metal smelting method, in particular to a ferro-titanium alloy induction furnace smelting method. Background technique [0002] At present, in the domestic ferro-titanium production industry, ordinary induction furnaces are only used for the intermittent re-dissolution method to produce waste titanium-type ferro-titanium alloys, and re-dissolve and polymerize waste titanium and steel into ferro-titanium alloys in induction furnaces. This method requires the use of titanium waste and steel. The production cost is too high, the output is low, and the raw materials are in short supply. Most of the raw materials are imported. At the same time, due to its own structure, ordinary induction furnaces cannot withstand the high temperature of more than 3000 °C generated when reducing titanium dioxide, so induction furnaces cannot be used to smelt rutile titanium-iron alloys. Contents of the invention [0003] The purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22B5/04
Inventor 苏永山苏永芝苏钰雯
Owner 苏永山
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