Hot wind oxygen-enriched sintering equipment and method thereof

A sintering device and oxygen-enriched technology, which is applied in the maintenance of heating chambers, lighting and heating equipment, furnaces, etc., can solve problems that have not been reported in the literature, and achieve the effects of improving the strength of the drum, reducing fuel consumption, and improving the oxidation atmosphere

Inactive Publication Date: 2009-07-15
KUNMING IRON & STEEL
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  • Abstract
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Problems solved by technology

[0004] In the iron ore powder sintering process, the application of oxygen-enriched sintering, especially in industrial applications, has not been reported in the literature

Method used

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  • Hot wind oxygen-enriched sintering equipment and method thereof

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Embodiment

[0023] The device of the present invention is as figure 1 As shown, it includes filter device 1, blower 2, cooler 11, membrane module 3, air pump 4, separation device 5, nitrogen-rich tank 6, buffer tank 7 and oxygen-rich tank 8, filter device 1, blower 2, cooler 11. Membrane modules 3, air pumps 4, separation devices 5, nitrogen-enriched tanks 6, buffer tanks 7 and oxygen-enriched tanks 8 are connected through gas pipelines in sequence.

[0024] The filter device 1 is connected with the cooling machine of the sintering machine.

[0025] An air pressure gauge 9 and an air extraction valve 10 are provided between the membrane module 3 and the air extraction pump 4 .

[0026] The separation device 4 is a membrane oxygen-enriched separation device.

[0027] The nitrogen-enriched tank 5 is provided with a nitrogen outlet.

[0028] The oxygen-enriched tank 8 is connected with the hot air hood of the head of the sintering machine.

[0029] Utilize above-mentioned hot-air oxygen-...

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Abstract

A sintering device with hot-air oxygen enrichment and a sintering method with hot-air oxygen enrichment are provided, which belongs to the technology field of sintering production in steel industry. The device comprises a filter equipment, a blower, a cooler, a member module, a suction pump, a separation unit, a nitrogen-rich gas tank, a buffer tank and an oxygen-rich gas tank mutually connected via a gas pipeline in turns. The flow passing through the material layer is heated by the flue gas waste heat introduced in a cooling machine to facilitate the sintering temperature of the upper material layer rising, reduce the temperature difference between the upper and lower layers and improve sinter quality and reduce energy consumption. The introduction of the oxygen-rich air can obviously improve fuel combustion conditions and reinforce the oxidizing atmosphere of material layers, thereby achieving the advantages of improving drum strength and productivity of sinter, reducing fuel consumption and improving sinter metallurgical property, etc. The oxygen-enriched process has simple flow, compact structure, no environmental pollution, fast effect and long service life.

Description

technical field [0001] The invention relates to a hot air oxygen-enriched sintering device and a hot air oxygen-enriched sintering method, belonging to the technical field of sintering production in the iron and steel industry. Background technique [0002] Oxygen-enriched sintering is to supply oxygen-enriched material into the sintering material layer, and its effect is to accelerate the combustion process of solid fuel, activate the reactivity of combustible elements and solid fuel in the mixture, and reduce the consumption of solid fuel; reduce the content of FeO, increase the strength of sinter, and improve the Yield and output, reduce pulverization rate, improve sinter quality, reduce environmental pollution, provide conditions for blast furnace to increase pig iron output, reduce coke ratio, have significant economic and social benefits, and are in line with my country's basic national policy of energy saving and consumption reduction. [0003] In 1992, the magazine "S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D7/02C22B1/16
Inventor 赵红光杨军李强亓玉辉胡守忠
Owner KUNMING IRON & STEEL
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