Sintering ore, sintering blending material for metallurgy and preparation method of sintering blending material for metallurgy

A technology of sintering mixed material and sintering ore, which is applied in the field of metallurgy, can solve problems such as high pressure on environmental protection and smoke pollution, and achieve the effects of low solid fuel consumption, reduced fuel consumption, and reduced sulfur emissions

Inactive Publication Date: 2018-12-07
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, a large amount of flue gas pollution will be generated during the sintering process, and sulfur oxides in the flue gas are one of the main pollutants. With the change of environmental protection policies, the environmental protection pressure of the sintering process will increase, and the sulfur in the sintering flue gas will be reduced. emissions imperative

Method used

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  • Sintering ore, sintering blending material for metallurgy and preparation method of sintering blending material for metallurgy
  • Sintering ore, sintering blending material for metallurgy and preparation method of sintering blending material for metallurgy
  • Sintering ore, sintering blending material for metallurgy and preparation method of sintering blending material for metallurgy

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Effect test

Embodiment 1

[0034] The embodiment of the present invention provides a sintered ore, a sintered mixed material for metallurgy and a preparation method thereof.

[0035] 1. Preparation of sintered mixture

[0036] (1) Pulverization: get 5 parts of blue charcoal and put it into a ball mill and grind it into powder, so that the particle size of blue charcoal is less than 0.5mm;

[0037] (2) Mixing: Take 67 parts of Baima concentrate, 7 parts of Pingchuan concentrate, 6 parts of medium powder, 3 parts of gas ash, 7 parts of limestone, 4.5 parts of activated carbon and 5 parts of pulverized blue carbon and add them to the strong mixer and mix for 5 minutes , to obtain the sintered material mixture;

[0038] Then add the uniformly mixed sintered material mixture into the first mix, add 3.65% water, and mix for 5 minutes;

[0039] Then add the sintered material mixture that has been mixed in the first mix to the second mix, add 3.65% water, and mix for 5 minutes. That is, the sintered mixed ma...

Embodiment 2

[0043] The embodiment of the present invention provides a sintered ore, a sintered mixed material for metallurgy and a preparation method thereof.

[0044] 1. Preparation of sintered mixture

[0045] (1) Pulverization: get 5 parts of blue charcoal and put it into a ball mill and grind it into powder, so that the particle size of blue charcoal is less than 0.5mm;

[0046] (2) Mixing: Take 60 parts of Baima concentrate, 5 parts of Pingchuan concentrate, 4 parts of medium powder, 1 part of gas ash, 5 parts of limestone, 3 parts of activated carbon and 5 parts of pulverized blue carbon, add them to the strong mixer and mix for 4 minutes , to obtain the sintered material mixture;

[0047] Then add the uniformly mixed sintered material mixture into the first mix, add 3.5% water, and mix for 4 minutes;

[0048] Then add the sintered material mixture that has been mixed in the first mix to the second mix, add 3.5% water, and mix for 4 minutes. That is, the sintered mixed material i...

Embodiment 3

[0052] The embodiment of the present invention provides a sintered ore, a sintered mixed material for metallurgy and a preparation method thereof.

[0053] 1. Preparation of sintered mixture

[0054] (1) Pulverization: get 5 parts of blue charcoal and put it into a ball mill and grind it into powder, so that the particle size of blue charcoal is less than 0.5mm;

[0055] (2) Mixing: Take 70 parts of Baima concentrate, 10 parts of Pingchuan concentrate, 8 parts of medium powder, 5 parts of gas ash, 10 parts of limestone, 6 parts of activated carbon and 5 parts of pulverized blue carbon and add them to the strong mixer and mix for 3 minutes , to obtain the sintered material mixture;

[0056] Then add the uniformly mixed sintered material mixture into the first mix, add 3.9% water, and mix for 3 minutes;

[0057] Then add the sintered material mixture that has been mixed in the first mix to the second mix, add 3.9% water, and mix for 3 minutes. That is, the sintered mixed mate...

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Abstract

The invention provides sintering ore, a sintering blending material for metallurgy and a preparation method of the sintering blending material for metallurgy, and belongs to the technical field of metallurgy. The sintering blending material for metallurgy comprises the sintering ore, fuel and a solvent. The particle average grain diameter of the sintering blending material is larger than the graindiameter of the sintering ore and the grain diameter of the fuel. Semi-coke is used for replacing part or all of coke powder in crude fuel, meanwhile, the particle average grain diameter of the sintering blending material is increased, particle distribution is improved, and the bed thickness of the sintering ore prepared from the sintering blending material can be increased; and during sintering,as the heat storage effect of a sintering bed is improved, the solid burnup is low during sintering, the fuel consumption can be effectively reduced, and therefore sulfur discharge is effectively reduced. According to the preparation method of the sintering blending material for metallurgy, a binder and a solvent are mixed to sinter the ore and the fuel, the particle average grain diameter of thesintering blending material can be increased by the binder, and the comprehensive attributes of the sintering ore prepared from the sintering blending material are improved. In addition, the invention relates to the sintering ore.

Description

technical field [0001] The invention relates to the technical field of metallurgy, and in particular to a sintered ore, a sintered mixed material for metallurgy and a preparation method thereof. Background technique [0002] Due to the high production cost of pellets and the poor metallurgical performance of lump ore, my country's iron and steel enterprises mainly reduce the cost of ironmaking by increasing the amount of sintered ore. [0003] Sintering is to mix various powdery iron-containing raw materials with an appropriate amount of fuel and flux, and add an appropriate amount of water. After mixing and pelletizing, a series of physical and chemical changes will occur on the material on the sintering equipment, and the ore powder particles will be bonded. block process. [0004] However, a large amount of flue gas pollution will be generated during the sintering process, and sulfur oxides in the flue gas are one of the main pollutants. With the change of environmental ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/242C22B1/16
CPCC22B1/16C22B1/242
Inventor 唐文博胡鹏王禹键蒋胜谢洪恩
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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