Oxygen production equipment and method and smelting equipment for producing oxygen using the same
Oxygen production equipment, a technology for separating oxygen production, applied in the field of methods, smelting equipment, and oxygen production equipment, can solve the problems of high cost of air separation unit, high cost of pressurized oxygen, and restrictions on the use of pulverized coal injection technology, and achieve low investment , the effect of low energy consumption
Active Publication Date: 2022-04-01
SHEN KAN QINHUANGDAO GENERAL ENG DESIGN & RES INST CORP MCC
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Problems solved by technology
Due to the limitation of oxygen used in steelmaking and smelting, a large amount of oxygen cannot be provided, and it is difficult to achieve 20% oxygen-enriched content in domestic blast furnace ironmaking, which greatly limits the use of large-scale pulverized coal injection technology in blast furnaces
However, if an air separation unit is specially built for blast furnace oxygen enrichment, there are problems such as high cost of air separation unit, high cost of oxygen production and oxygen compression
Method used
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Embodiment
[0039] like figure 1 As shown, the present embodiment provides a kind of oxygen production equipment, including air compressor, cryogenic air separation oxygen production system and PSA oxygen-enriched air system; cryogenic air separation oxygen production system and PSA oxygen-enriched air system The system communicates with the air compressors respectively.
[0040] like figure 2 As shown, in a preferred embodiment, the cryogenic air separation oxygen production system includes a nitrogen water precooling device, a molecular sieve purification device, an air separation device and a storage pressure regulating device connected in sequence; the oxygen-enriched air system by pressure swing adsorption includes Two adsorption towers. The nitrogen water precooling device adopts an air cooling tower, and the molecular sieve purification device adopts a molecular sieve adsorber.
[0041] In order to ensure the cleanliness of the air entering the equipment, in a preferred embodim...
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The invention provides an oxygen production equipment, a method for producing oxygen using the same and a smelting equipment. Oxygen production equipment: air compressor, cryogenic air separation oxygen production system for obtaining high-purity gas, and pressure swing adsorption production oxygen-enriched air system for obtaining oxygen-enriched air. Oxygen production method using oxygen production equipment: After the air enters the air compressor for compression, part of it enters the cryogenic air separation oxygen production system, and the rest enters the pressure swing adsorption oxygen-enriched air system; the compressed air entering the cryogenic air separation oxygen production system It is sent to the nitrogen water pre-cooling device for pre-cooling, then sent to the molecular sieve purification device for purification, and finally sent to the air separation device to obtain liquid oxygen; the compressed air entering the oxygen-enriched air system of pressure swing adsorption is sent to the adsorption tower, and the adsorption treatment obtains Oxygen-enriched air. Smelting equipment, including oxygen production equipment. The oxygen production equipment and the oxygen production method provided by the application can provide high-purity oxygen and oxygen-enriched air at the same time, save energy and reduce emissions, and have good economic benefits.
Description
technical field [0001] The invention relates to the field of metal smelting, in particular to an oxygen production equipment, a method for producing oxygen using the same, and a smelting equipment. Background technique [0002] Oxygen for steelmaking (converter, electric furnace) smelting and oxygen-enriched blast for ironmaking blast furnace systems are all provided by the air separation station of the oxygen station. Cryogenic air separation unit production 1m 3 Oxygen power index: 0.55-0.6KW h / m 3 . The oxygen used in the oxygen-enriched blast system of the ironmaking blast furnace is provided by the remainder of the oxygen used in steelmaking and smelting, with an oxygen content of 1-3%, and the oxygen-enriched blast air in the ironmaking blast furnace contains a certain amount of moisture. Due to the limitation of oxygen used in steelmaking and smelting, a large amount of oxygen cannot be provided, and it is difficult to achieve 20% oxygen-enriched content in domesti...
Claims
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IPC IPC(8): C01B13/02C21B5/00
CPCC01B13/0262C21B5/003
Inventor 吴绍刚荀凤超王继州黄敏武脡鹰李伟张乐双刘洋潘静李卫刚赵运廷路杰
Owner SHEN KAN QINHUANGDAO GENERAL ENG DESIGN & RES INST CORP MCC