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Iron-containing organic metallurgical pellet binder and preparation method thereof

A binder and organic technology, applied in the field of iron-containing organic metallurgical pellet binders, to achieve the effects of high-efficiency adhesion, large burning loss, and low ratio

Inactive Publication Date: 2016-05-11
杨群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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However, this method does not fundamentally solve the

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  • Iron-containing organic metallurgical pellet binder and preparation method thereof
  • Iron-containing organic metallurgical pellet binder and preparation method thereof
  • Iron-containing organic metallurgical pellet binder and preparation method thereof

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Embodiment 1

[0019] An iron-containing organic metallurgical pellet binder, the composition weight percent of which is: 1%-3% of polyacrylamide, 30%-40% of sodium humate, 6%-10% of borax, and 8% of sodium nitrate ~15%, iron ore powder 30~60%.

Embodiment 2

[0021] The iron-containing organic metallurgical pellet binder comprises the following components by weight percentage: 2% of polyacrylamide, 35% of sodium humate, 8% of borax, 10% of sodium nitrate, and 45% of iron ore powder.

[0022] The particle size of the polyacrylamide is 70 meshes, the molecular weight of the polyacrylamide is >15 million, and the moisture content of the polyacrylamide is ≤5%.

[0023] The sodium humate is composed of water-soluble humic acid and water-insoluble matter, wherein the content of the water-soluble humic acid is ≥70%, the water-insoluble matter is ≤12%, and the water content of the sodium humate is ≤ 15%.

[0024] The particle size of the borax is 70 meshes, and the moisture content of the borax is ≤15%.

[0025] The particle size of the sodium nitrate is 60 mesh, and the water content of the sodium nitrate is ≤10%.

[0026] The iron ore powder is one or more of iron-containing material powders such as hematite powder, pellet return ore p...

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Abstract

The invention discloses an iron-containing organic metallurgical pellet binder and a preparation method thereof. The iron-containing organic metallurgical pellet binder comprises the following components in percentage by weight: 1-3% of polyacrylamide, 30-40% of sodium humate, 6-10% of borax, 8-15% of sodium nitrate, and 30-60% of iron ore powder, wherein the components are mixed, dried, grinded and then prepared into the finished product. The iron-containing organic metallurgical pellet binder disclosed by the invention is a pure organic matter binder, and has the characteristics of efficient binding force, low proportion, high burning loss and low residue; and by using the iron-containing organic metallurgical pellet binder disclosed by the invention for replacing common bentonite, the iron grade of pellet ores can be effectively increased, and the replacement is of great significance to realization of production increasing and coke saving of a blast furnace, energy conservation and emission reduction, reasonable utilization of iron ore resources, and improvement of overall economic benefits and social benefits of iron and steel enterprises.

Description

technical field [0001] The invention relates to an iron-containing organic metallurgical pellet binder. Background technique [0002] At present, the production of pellets in my country has always used bentonite as the binder, and the amount of bentonite added is generally about 1.5-3.5%. Due to its own composition characteristics, the addition of bentonite brings in certain harmful impurities, such as potassium, sodium and other harmful elements and SiO 2 Other impurities also reduce the grade of pellets. At present, the particle size of pellet powder is relatively coarse and the sulfur content is high, which further increases the ratio of bentonite, reduces the grade of pellets to a greater extent, and affects other quality indicators of pellets to a certain extent. For pelletizing plants, a high proportion of bentonite requires the purchase of high-quality iron-containing raw materials, which increases the cost; for ironmaking plants, theoretically, every addition of 1%...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/242
CPCC22B1/242Y02P10/20
Inventor 杨群
Owner 杨群
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