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Metallurgy additive

An additive and tackifier technology, applied in the field of metallurgical additives, can solve the problems of increased energy consumption, poor quality, high production costs, etc.

Inactive Publication Date: 2014-04-30
TIANJIN BINHAI GUANLIN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production of pellets, due to the large amount of bentonite added, the quality is poor, resulting in low iron grade, increased energy consumption, and high production costs; in the production of sintered ore, it also causes poor air permeability of the material layer, increased energy consumption, and high costs. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0005] For sintering production, the formula is: ferric citrate accounts for 62%, tackifier accounts for 20%, oxidizing agent accounts for 15%, and preservative accounts for 3%. formaldehyde. When the addition amount is 3 / 10,000 in sintering production, the output can be increased by more than 5%.

Embodiment 2

[0007] For sintering production, the formula is: ferric citrate accounts for 7096, urea-formaldehyde resin (tackifier) ​​accounts for 1896, potassium chlorate (oxidant) accounts for 10%, carbolic acid (preservative) 2%. Can reach the effect of embodiment 1 equally. In the formula for sintering production, the tackifier can also be CMC (sodium carboxymethyl cellulose) or urea resin or polyacrylamide or guar gum, the oxidant can also be potassium permanganate, and the preservative can also be borax or boric acid.

Embodiment 3

[0009] For pellet production, formula: 60% ferric citrate, 30% starch (viscosifier), 10% sodium hydroxide (strengthener). Works just as well.

[0010] In the pellet production formula, the tackifier can also be polyacrylamide or guar gum, etc., and the reinforcing agent can also be sodium tripolyphosphate or sodium polyphosphate.

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PUM

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Abstract

The present invention relates to a metallurgy additive, particularly to an additive for production of pellet and sinter. According to the additive, iron citrate is adopted as the main formula, and a tackifier, an antioxidant, a reinforcing agent and a preservative are respectively mixed to form the additive for sintering and pellet production, wherein the additive has advantages of energy consumption reduction, pellet grade increase and sinter product quality increase.

Description

technical field [0001] The invention relates to an additive, in particular to a metallurgical additive. Background technique [0002] The pelletizing ore and sintering ore manufacturers of the prior art all use bentonite as an additive for the pelletizing and sintering process. In the production of pellets, due to the large amount of bentonite added, the quality is poor, resulting in low iron grade, increased energy consumption, and high production costs; in the production of sintered ore, it also causes poor air permeability of the material layer, increased energy consumption, and high costs. question Contents of the invention [0003] The object of the present invention is to provide a metallurgical additive with a small dosage, which can improve the air permeability of the material layer, reduce energy consumption and production cost. The technical scheme of the present invention is such: adopt ferric citrate as basic raw material. Add tackifier, oxidant and antisept...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16C22B1/242C22B1/244
Inventor 闫岩
Owner TIANJIN BINHAI GUANLIN SCI & TECH