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High temperature sticking resistant composition for vanadium and titanium-containing molten iron desulphurization, high temperature sticking resistant agent, and application of

A technology of hot metal desulfurization and composition, which is applied in the field of high-temperature anti-sticking agent and high-temperature anti-sticking composition for vanadium-titanium hot metal desulfurization. The effect of bonding strength

Active Publication Date: 2014-09-17
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, during the desulfurization process of vanadium-titanium hot metal pretreatment, there is an extremely serious disadvantage of splashing. Desulfurization splashing often causes the adhesion of equipment such as fume hoods and tipping cars to intensify, and it is often necessary to stop production to clean the fume hood and tipping car. The processing time is long and the operation is complicated, which seriously affects the production capacity of vanadium ferro-vanadium hot metal desulfurization pretreatment
[0005] The prior art with the publication number CN102030501A and titled "High Temperature Anti-Sticking Coating" relates to a high-temperature self-drying high-temperature anti-sticking coating to solve the problem of preventing steel slag burning on the outer surface of the oxygen blowing tube of a steelmaking furnace

Method used

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  • High temperature sticking resistant composition for vanadium and titanium-containing molten iron desulphurization, high temperature sticking resistant agent, and application of

Examples

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Effect test

preparation example 1

[0030] This preparation example is used to prepare the high temperature release composition of the present invention.

[0031] Get 300kg of corundum slag, the by-product after hydrometallurgy vanadium slag, the main components and content of which are respectively: 62 parts by weight of Al 2 o 3 , 9 parts by weight of CaO, 21 parts by weight of MgO, 8 parts by weight of V 2 o 3 and unavoidable impurities, the corundum slag was ground into uniform fine particles, and the measured proportion of the particle size was less than 4mm was 98.9% by weight. The resulting composition was numbered A-1.

preparation example 2

[0033] This preparation example is used to prepare the high temperature release composition of the present invention.

[0034] Take 65 parts by weight of Al 2 o 3, 8 parts by weight of CaO, 20 parts by weight of MgO and 7 parts by weight of V 2 o 3 Grind into fine powder and mix evenly, and the ratio of particle size less than 4mm is 98.9% by weight. The resulting composition was designated A-2.

preparation example 3

[0036] This preparation example is used to prepare the high temperature release composition of the present invention.

[0037] Take 60 parts by weight of Al 2 o 3 , 10 parts by weight of CaO, 23 parts by weight of MgO and 7 parts by weight of V 2 o 3 Grind into fine powder and mix evenly, and the ratio of particle size less than 4mm is 98.9% by weight. The resulting composition was designated A-3.

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Abstract

The invention discloses a high temperature sticking resistant composition for vanadium and titanium-containing molten iron desulphurization. The composition contains 45-75wt% of Al2O3, 5-15wt% of CaO, 15-30wt% of MgO and 5-10wt% of V2O3. The invention also discloses a high temperature sticking resistant agent, and its application in the vanadium-titanium molten iron desulphurization. The high temperature sticking resistant agent can substantially reduce the sticking strength of vanadium and titanium-containing molten iron and the surface of a desulphurization apparatus in order to reduce the cleaning workload in steel smelting engineering and reduce the production cost of a whole process.

Description

technical field [0001] The invention relates to the field of molten iron pretreatment, in particular to a high-temperature anti-adhesive composition for desulfurization of vanadium-titanium molten iron, a high-temperature anti-adhesive agent and applications thereof. Background technique [0002] my country's Panxi region has extremely rich vanadium-titanium magnetite resources, with proven reserves of tens of billions of tons. With the long-term unremitting efforts of the majority of scientific and technological personnel, the blast furnace smelting with high vanadium-titanium magnetite ratio has been realized. After continuous research, at present, Panzhihua Iron and Steel Vanadium Company's blast furnace vanadium-titanium ore smelting technology level has reached the leading level at home and abroad. [0003] Compared with ordinary molten iron, vanadium-titanium molten iron, the main product of vanadium-titanium ore blast furnace smelting, has its particularity. The most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C1/02
Inventor 梁新腾曾建华李扬洲杨森祥常军戈文荪陈永龚洪君喻林陈均陈路
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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