Vanadium titano-magnetite screen method

A technology of vanadium titanomagnetite and screening method, applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems of high cost, low recovery rate of iron concentrate and titanium concentrate, etc., and improve the recovery rate Effect

Active Publication Date: 2009-10-28
四川安宁铁钛股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the existing two-stage grinding stage selection method is used to screen low-grade vanadium-titanium magnetite, the recovery rate of the obtained iron concentrate and titanium concentrate is relatively low, and the cost is relatively high.

Method used

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  • Vanadium titano-magnetite screen method

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Effect test

Embodiment 1

[0033] Embodiment 1 screens low-grade vanadium-titanium magnetite with the inventive method

[0034] Take TFe as 25%, TiO 2 1000t of vanadium-titanium magnetite with a content of 10.5%, the ore is crushed and screened, and the final crushed ore particle size is ≤15mm. The crushed ore enters the ball mill, and cooperates with the spiral classifier to carry out one-stage grinding closed-circuit classification, the pulp-200 mesh particle size reaches 30%, and a weak magnetic separator with a field strength of 3350Gs is used for rough magnetic separation and sweeping magnetic separation; one-stage magnetic separation concentrate After demagnetization, enter the second-stage ball mill, cooperate with the spiral classifier to carry out the second-stage grinding closed-circuit classification, the particle size of -200 mesh reaches 55%, and use the weak magnetic separator with a field strength of 1850Gs for rough magnetic separation and sweep magnetic separation; the second-stage magn...

Embodiment 2

[0039] Embodiment 2 screens low-grade vanadium-titanium magnetite with the inventive method

[0040] Take TFe as 24%, TiO 2 1000t of vanadium-titanium magnetite with a content of 10%, the ore is crushed and screened, and the final crushed ore particle size is ≤15mm. The crushed ore enters the ball mill, and cooperates with the spiral classifier to carry out one-stage grinding closed-circuit classification. The pulp-200 mesh particle size reaches 30%. A weak magnetic separator with a field strength of 3400Gs is used for rough magnetic separation and sweeping magnetic separation; one-stage magnetic separation concentrate After demagnetization, enter the second-stage ball mill, cooperate with the spiral classifier to carry out the second-stage grinding closed-circuit classification, the -200 mesh particle size reaches 55%, use a weak magnetic separator with a field strength of 1900Gs for rough magnetic separation and sweep magnetic separation; the second-stage magnetic separation...

Embodiment 3

[0045] Embodiment 3 screens low-grade vanadium-titanium magnetite with the inventive method

[0046] Take TFe as 22%, TiO 2 1000t of vanadium-titanium magnetite with a content of 9.5%, the ore is crushed and screened, and the final crushed ore particle size is ≤15mm. The crushed ore enters the ball mill, and cooperates with the spiral classifier to carry out one-stage grinding closed-circuit classification. The 200-mesh particle size of the ore pulp reaches 30%. A weak magnetic separator with a field strength of 3450Gs is used for rough magnetic separation and sweeping magnetic separation; After magnetization, it enters the second-stage ball mill, and cooperates with the spiral classifier to carry out the second-stage grinding closed-circuit classification. The particle size of -200 mesh reaches 55%. A weak magnetic separator with a field strength of 2000Gs is used for rough magnetic separation and sweep magnetic separation; the second-stage magnetic separation fine After dem...

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Abstract

The invention relates to a screen method for vanadium titano-magnetite with high quality, belonging to the ore screen field. The method adopts three stage-grinding and stage-concentration process for magnetic separation, wherein the field intensity of one-stage magnetic separation is 3000-4000 Gs; the field intensity of two-stage magnetic separation is 1800-2200 Gs; and the field intensity of three-stage magnetic separation is 1300-1700 Gs. The recovery rate of the screened iron ore concentrate and the titanium ore concentrate is high and the screened cost of the screened iron ore concentrate and the titanium ore concentrate is low, thus providing a new selection for the low grade vanadium titano-magnetite resource and having a broad application prospect.

Description

technical field [0001] The invention relates to a method for screening vanadium-titanium magnetite, belonging to the field of ore screening. Background technique [0002] my country's Panzhihua area is rich in vanadium and titanium resources. The vanadium-titanium magnetite reserves reach 10 billion tons, accounting for 20% of the national iron ore reserves. The main large-scale mining areas include Panzhihua, Taihe, Baima, Hongge, etc. The average content of TFe is in 25-33%. Panjiatian mine belongs to the north section of Hongge mining area, with geological reserves of 380 million tons, of which Fe 4 (TFe=16.60%, TiO 2 =6.42%) accounted for about 40%, Panjiatian mine vanadium-titanium magnetite TFe, TiO 2 The average contents are 26.23% and 10.82% respectively. [0003] At present, vanadium-titanium magnetite is mainly for Fe 2+3 Use two-stage grinding and stage selection (that is, grinding while selecting, re-grinding and re-selection) for iron selection, and use spir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/00B03D1/00
Inventor 罗阳勇陈鹏王发康郭万刚曾成华曾茂祥
Owner 四川安宁铁钛股份有限公司
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