Oxygen-enriched sintering process method

An oxygen-enriched and new process technology, applied in the field of oxygen-enriched sintering process, can solve the problems of poor surface strength of sintered ore, insufficient heat, insufficient oxygen, etc., so as to improve the quality of sintered ore, increase the thickness of the material layer, and promote the smooth removal of sintered ore. the effect of removing

Inactive Publication Date: 2011-05-18
TIANJIN TIANTIE METALLURGICAL GRP
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Problems solved by technology

[0003] In order to overcome the shortcomings of insufficient oxygen, insufficient heat, and low temperature in the existing sintering production process, the surface strength of the sintered ore is not good, and the high temperature is too narrow, etc., the patent of the present invention designs a sintering oxygen supply process

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Embodiment Construction

[0010] Oxygen-enriched oxygen is fed into the pipeline leading to the top of the sintering machine through the carefully designed sintering oxygen supply process, and is blown vertically into the sintering layer through several rows of pipelines arranged horizontally above the sintering machine. The specific operation of stopping the oxygen supply is: after the pipeline is purged, send the oxygen to the front of the 1# oxygen stop valve, and the pressure should be 0.2MPa~0.4MPa. Open the 7# butterfly valve. Slowly open the 1# cut-off valve, 6# cut-off check valve, open the 2# quick cut-off valve, and then gradually open the 4# flow regulating valve, and calculate the oxygen enrichment rate according to the compressed air flow and oxygen enrichment after sintering oxygen enrichment (X 02 ) Oxygen enrichment rate: X 02 ---It refers to the percentage increase of the oxygen volume content in the blast after oxygen enrichment.

[0011] x 02 =0.788×Q(oxygen)÷60 / Q(mixed)×100%

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Abstract

The invention discloses an oxygen-enriched sintering process method. In the sintering production process, air with a certain concentration is blown to the upper part of a sintering machine, and the continuous production of oxygen-enriched sintering is performed by increasing the oxygen content in the air so as to fulfill the aims of improving the quality of sintered minerals and reducing solid fuel consumption. A novel sintering process production method can improve the thickness of material layers, improve the granularity composition of the sintered minerals, reduce the solid fuel consumption and facilitate smooth desulfuration. The oxygen-enriched sintering process is a novel process and novel method for effectively improving the quality of the sintered minerals.

Description

Technical field: [0001] The present invention is a new production process in sintering production. Oxygen with a certain concentration is blown into the upper part of the sintering machine to increase the oxygen content in the air and carry out continuous production of oxygen-enriched sintering. This process can effectively improve the quality of sintered minerals and reduce the sintering rate. process consumption. Background technique: [0002] In the process of sintering production, insufficient heat and insufficient combustion process often occur, resulting in poor surface strength of sintered ore, which easily causes sintered ore to be crushed. If the high temperature in the sintering process is too narrow, the desulfurization reaction cannot be fully carried out, which affects the quality of the sintered ore in the furnace. Due to the concentration of fuel and the coarse particle size of the fuel, a strong reducing atmosphere is likely to be generated in places with poo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16
Inventor 时秉旭
Owner TIANJIN TIANTIE METALLURGICAL GRP
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