A gas mixing system

A coal gas mixing and coal gas technology, which is applied in the pipeline system, gas and gas/steam mixing, mixing methods, etc., can solve the problems that the calorific value and sulfide requirements can not be taken into account at the same time, and achieve the effect of reducing the sulfide content

Active Publication Date: 2021-12-21
SHOUGANG CORPORATION
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Problems solved by technology

[0004] The embodiment of the present application provides a gas mixing system, which solves the technical problem in the prior art that the requirements of different equipment and processing techniques on gas calorific value and sulfide can not be considered at the same time.

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  • A gas mixing system

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Embodiment 1

[0024] Such as figure 1 As shown, this embodiment provides a gas mixing system, including: a first-stage gas mixing device and a second-stage gas mixing device cascaded in sequence;

[0025] The first-stage gas mixing device is used for mixing blast furnace gas and converter gas to obtain mixed high-revolution gas, and sending the high-revolution gas into the second-stage gas mixing device;

[0026] The second-stage gas mixing device is used to mix the high-revolution gas with refined coke oven gas to obtain low-sulfur mixed gas and provide it to low-sulfur users; and mix the high-revolution gas with ordinary coke oven gas , get ordinary mixed gas, and provide it to ordinary users.

[0027] It should be noted that blast furnace gas, converter gas and coke oven gas are all by-products produced in the ironmaking process, and the calorific value of blast furnace gas is about 800KJ / m 3 Left and right, low output, the calorific value of converter gas is about 1600KJ / m 3 Left and...

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Abstract

The invention discloses a gas mixing system, comprising: a first-stage gas mixing device and a second-stage gas mixing device cascaded in sequence; the first-stage gas mixing device is used to mix blast furnace gas and converter gas to obtain high-revolution gas ; The second-stage gas mixing device is used to mix high-rev gas with refined coke oven gas to obtain low-sulfur mixed gas; and mix high-rev gas with ordinary coke oven gas to obtain ordinary mixed gas. This application maximizes the use of low-quality blast furnace gas and converter gas through the first-stage gas mixing device, and reduces the amount of coke oven gas used by the second-stage gas mixing device to meet the needs of equipment for high calorific value. At the same time, it can relatively reduce the mixing The sulfide content in the coal gas solves the technical problem in the prior art that the requirements of different equipment and processing techniques on the calorific value and sulfide of the gas cannot be taken into account at the same time.

Description

technical field [0001] The invention relates to the technical field of the application of by-product gas in the steelmaking process, in particular to a gas mixing system. Background technique [0002] There are a large number of thermal equipment in iron and steel enterprises that need to burn gas to meet production needs. Different equipment and processing techniques have different requirements for gas not only for the calorific value, but also for impurities in the gas. Among them, the most important thing is the gas The content of sulfide in the medium puts forward strict requirements. Sulphides mainly exist in coke oven gas, which has the highest calorific value among the by-product gases of iron and steel plants, and is widely used in the gas supply system. The main sulfide index H after purification of general coke oven gas 2 The content of S is controlled at 200mg / m 3 Refined coke oven gas is controlled within 20mg / m 3 Within the range, the cost of refined coke ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/02F17D3/01F17D3/12B01F3/02B01F23/10
CPCF17D1/02F17D3/01F17D3/12B01F23/19B01F2101/501
Inventor 杨小龙李劲松高攀张效鹏陈冠军
Owner SHOUGANG CORPORATION
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