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Blast furnace oxygen delivery system and working method

A delivery system, oxygen technology, applied in the pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of blast furnace oxygen waste, achieve energy saving and consumption reduction, avoid release, and save energy consumption of oxygen compression Effect

Pending Publication Date: 2020-01-03
NANJING IRON & STEEL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Purpose of the invention: In order to solve the problem of the existing blast furnace oxygen waste, the present invention provides a blast furnace oxygen delivery system

Method used

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  • Blast furnace oxygen delivery system and working method

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Embodiment 1

[0027] Embodiment 1: as figure 1 As shown, the blast furnace oxygen delivery system of the present invention includes a first oxygen delivery system 10, a second oxygen delivery system 20 and a delivery main pipe 30;

[0028] In this embodiment, the first oxygen storage system connected to the air inlet of the first delivery pipe 101 is a low-pressure oxygen delivery system, the first oxygen storage system is a 0.8MPa low-pressure oxygen compressor, and the first oxygen delivery system 10 includes a first delivery Pipe 101, the air inlet of the first conveying pipe 101 communicates with the outlet of the first oxygen storage system, the gas outlet of the first conveying pipe 101 communicates with the air inlet pipe of the conveying main pipe 30, and the first conveying pipe 101 is sequentially provided with first The flame arrester 102, the first cut-off valve 103, the first pressure gauge 104, the first decompression regulating valve 105, the second pressure gauge 106, the se...

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Abstract

The invention discloses a blast furnace oxygen delivery system and a working method. The system comprises a first oxygen delivery system, a second oxygen delivery system and a delivery main pipe; thefirst oxygen delivery system comprises a first delivery pipe, a first fire arrestor, a first stop valve, a first pressure gauge, a first pressure reduction regulating valve, a second pressure gauge, asecond stop valve and a third stop valve; and the second oxygen delivery system comprises a second delivery pipe, a second fire arrestor, a fourth stop valve, a third pressure gauge, a filter, a second pressure reduction regulating valve, a fourth pressure gauge, a third pressure reduction regulating valve, a fifth pressure gauge and a fifth stop valve. According to the system, middle-pressure oxygen and low-pressure oxygen can achieve hierarchical control, it is guaranteed that the low-pressure oxygen with low energy consumption is used firstly, the insufficient section is supplemented withthe middle-pressure oxygen, the problems that the low-pressure oxygen is diffused, and energy waste is generated when the middle-pressure oxygen is used a lot are effectively avoided, and oxygen-enriched energy conservation and consumption reduction of a blast furnace are achieved to the maximum limit.

Description

technical field [0001] The invention belongs to the field of metallurgical blast furnace oxygen enrichment, in particular to a blast furnace oxygen delivery system and working method. Background technique [0002] At present, some blast furnaces use medium-pressure oxygen (3.0MPa). The medium-pressure oxygen is throttled and decompressed and then sent to the blast furnace for oxygen-enriched smelting. The throttling process causes a lot of waste of energy and generates a lot of noise, which brings environmental problems. Contents of the invention [0003] Purpose of the invention: In order to solve the problem of oxygen waste in the existing blast furnace, the present invention provides a blast furnace oxygen delivery system. The invention also provides the working method of the blast furnace oxygen delivery system. [0004] Technical solution: a blast furnace oxygen delivery system according to the present invention, comprising a first oxygen delivery system, a second ox...

Claims

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Application Information

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IPC IPC(8): F17D1/02F17D3/18F17D3/01
CPCF17D1/02F17D3/01F17D3/18
Inventor 秦海中
Owner NANJING IRON & STEEL CO LTD
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