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A method and system for generating electricity by burning metallurgical gas in a self-provided power plant

A gas and power plant technology, applied in the field of power generation methods and systems for burning metallurgical gas in self-provided power plants, can solve problems such as high production electricity costs, achieve the effects of saving energy consumption, improving power generation efficiency, and reducing electricity costs

Active Publication Date: 2017-02-22
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The electricity price during the valley electricity period is generally about 1 / 3 or even lower than the electricity price during the peak electricity period, which causes the production electricity cost of iron and steel enterprises during the peak electricity period to be higher than the production electricity cost during the valley electricity period

Method used

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  • A method and system for generating electricity by burning metallurgical gas in a self-provided power plant
  • A method and system for generating electricity by burning metallurgical gas in a self-provided power plant
  • A method and system for generating electricity by burning metallurgical gas in a self-provided power plant

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Embodiment 1

[0048] see figure 1 As shown, the self-contained power plant combustion metallurgical gas power generation method provided by the embodiment of the present invention includes:

[0049] S101, during the valley power period, use the low calorific value blast furnace gas stored in the gas tank during the peak power period to generate electricity, and store the high calorific value gas in the gas tank replaced by the released blast furnace gas;

[0050] S102. During the peak power period, use the high calorific value gas stored in the gas holder during the valley power period to generate electricity, and store the low calorific value blast furnace gas in the gas cabinet that releases the high calorific value gas.

[0051]The method for generating electricity by burning metallurgical gas in a self-provided power plant described in the embodiment of the present invention uses the low calorific value blast furnace gas stored in the gas tank during the peak power period to generate el...

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Abstract

The invention discloses a method and system for generating power through metallurgical gas combustion of an owned power plant. According to the method and system, the power cost of a steel metallurgical enterprise is reduced. The method comprises the steps that in the off-peak power period, low heat blast-furnace gas stored in a peak power period gas cabinet is utilized for generating power, and high heat gas is stored to the coal cabinet obtained through replacement of blast-furnace gas; in the peak power period, the high heat gas stored in an off-peak power period gas cabinet is utilized for generating power, and the low heat blast-furnace gas is stored to a gas cabinet obtained through replacement of the high heat gas. The system comprises a low heat gas power generation unit and a high heat gas power generation unit. The low heat gas power generation unit is used in the off-peak power period, the low heat blast-furnace gas stored in the peak power period gas cabinet is utilized for generating power, and the high heat gas is stored to the gas cabinet obtained through replacement of the blast-furnace gas; and the high heat gas power generation unit is used in the peak power period, the high heat blast-furnace gas stored in the off-peak power period is utilized for generating power, and the low heat blast-furnace gas is stored in the gas cabinet. The method and system are suitable for the technical field of the owned power plant of an iron and steel enterprise.

Description

technical field [0001] The invention relates to the technical field of self-provided power plants of iron and steel enterprises, in particular to a power generation method and system for burning metallurgical gas in self-provided power plants. Background technique [0002] In the iron and steel metallurgical production process, gas is produced in multiple links, including: coke oven gas produced in the coking process, with a calorific value of 16800-18900kJ / m3; blast furnace gas produced in the ironmaking process, with a calorific value of 3349-4187kJ / m3; and The converter gas produced in the steel process has a calorific value of 6800-10000kJ / m3. The gas is not only used to meet the process gas in the iron and steel production process, but the rest is the by-product gas of iron and steel enterprises, which is generally used for self-owned power plants to generate electricity. [0003] In the past ten years, almost all domestic large-scale iron and steel enterprises have bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00F01K27/00
Inventor 王立刘传平何坤
Owner UNIV OF SCI & TECH BEIJING
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