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Fine iron ore agglomeration additive and its preparation method

A technology for sintering additive and iron ore concentrate, applied in the field of additives, can solve the problems of reducing the iron grade of sintered ore, high production cost, complicated process, etc., and achieve the effects of reducing the amount of ore returning, reducing the returning rate and reducing environmental pollution.

Inactive Publication Date: 2005-05-25
张互助
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of such additives still has the defects of complex process, lower sinter iron grade, lower quality and high production cost

Method used

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  • Fine iron ore agglomeration additive and its preparation method

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing of specification sheet, fine iron ore sintering additive of the present invention and preparation thereof are described further:

[0019] The fine iron ore sintering additive of the present invention is formed according to the following components and weight ratio:

[0020] Quartz powder: 5~20%

[0021] Rare earth: 10~30%

[0022] Mica: 5~10%

[0023] Magnesium oxide: 8-15%

[0024] Aluminum oxide: 5-10%

[0025] Diatomaceous earth: 6~10%

[0026] Ammonium nitrate: 10-20%

[0027] Boric acid: 20-40%

[0028] Iron oxide: 5-10%.

[0029] Introduce the preparation method of fine iron ore sintering additive below in conjunction with accompanying drawing:

[0030] 1. Mix quartz powder, rare earth, mica, magnesium oxide, aluminum oxide, diatomaceous earth, ammonium nitrate, boric acid, iron oxide and other raw materials on a common mixer;

[0031] 2. Pulverize and grind the mixed quartz powder, rare earth, mica, magnesiu...

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Abstract

A sintering additive for iron ore concentrate is prepared from quartz powder, RE, mica magnesium oxide, aluminium oxide, diatomite, bellite, boric acid, and iron oxide through mixing, grinding and baking.

Description

technical field [0001] The invention relates to additives, in particular to an additive for fine iron ore sintering and a preparation method thereof. Background technique [0002] In the prior art, as a chemical product, chemical additives have been widely used in various industries and become an indispensable chemical raw material in industrial production. The restrictions on the use of chemical additives are becoming more and more stringent. Many environmentally friendly and effective additives have been developed one after another. However, no environmental-friendly and effective concentrate iron ore sintering additive has been found yet. In the prior art, the patent application number is CN94110361.7, and the name of the invention is: a sintering process for making cherry pellets with iron concentrate and water-soluble additives. The specification discloses a water-soluble additive, and the ingredients of the additive include: Resin, cellulose, or specially formulated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04C22B1/16
Inventor 张互助张练成
Owner 张互助
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