A steel mill gas sulfur content soft measurement method

A technology of sulfur content and soft measurement, which is applied in special data processing applications, instruments, electrical digital data processing, etc. The effect of value, simplification of the solution process, and reliable results

Inactive Publication Date: 2019-04-16
JIANGSU MARITIME INST
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Problems solved by technology

However, because sulfur in gas exists in various forms, not only conventional sulfur elements, but also various forms of sulfide, which is very complicated. Although the total sulfur content can be obtained by sampling and offline analysis, there are many analysis items and high cost , and it is even more difficult to analyze the total sulfur content in real time through online equipment

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  • A steel mill gas sulfur content soft measurement method
  • A steel mill gas sulfur content soft measurement method
  • A steel mill gas sulfur content soft measurement method

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Embodiment Construction

[0031] The present invention will now be described in further detail.

[0032] A soft measuring method for the sulfur content of steel plant gas, characterized in that: by obtaining raw data, and calculating and processing the data, the sulfur content of the gas is obtained by solving, and the specific steps are as follows:

[0033] Step 1, obtain the raw data required for soft measurement; the obtained raw data include but not limited to: SO in flue gas 2 Emission concentration, flue gas oxygen content, gas calorific value.

[0034] In this example, the SO in the flue gas 2 Emission concentration is SO in dry flue gas 2 Emission concentration, flue gas oxygen content is the oxygen content in dry flue gas.

[0035] In this embodiment, the gas calorific value is the lower calorific value of the gas dry basis.

[0036] In this example, the flue gas oxygen content and SO 2 The emission concentration shares the measuring point, or its measuring point is located close to the S...

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Abstract

The invention discloses a steel mill gas sulfur content soft measurement method. The theoretical dry flue gas amount generated by unit volume of gas combustion is directly calculated through the gas heat value, the actual dry flue gas amount generated by unit volume of gas combustion is further obtained by combining with flue gas oxygen content calculation, and finally the sulfur content of the gas is calculated by combining with the SO2 emission concentration in the flue gas. The measuring method is particularly suitable for gas combustion equipment such as a gas boiler. The sulfur content ofthe coal gas can be deduced reversely by means of online monitoring SO2 emission concentration, coal gas heat value configured by combustion equipment, flue gas oxygen content and other online measurement data, and therefore online soft measurement of the sulfur content of the coal gas is achieved. Compared with a traditional measurement method, the calculation precision is not reduced, but the solving process is greatly simplified.

Description

technical field [0001] The invention relates to the technical field of soft measurement of gas components, in particular to a method for soft measurement of sulfur content in steel plant gas. Background technique [0002] Iron and steel enterprises produce a large amount of by-product gas during the smelting process, including blast furnace gas, converter gas and coke oven gas. The above-mentioned by-product gas is the most important gas fuel in steel mills, and its efficient utilization is an important way for steel mills to reduce costs, increase efficiency, and improve market competitiveness. At present, steel mills digest steel mill gas mainly through heating furnaces, hot blast stoves, gas boilers, gas turbines and other equipment. [0003] For combustion equipment, whether it is environmental protection emission requirements or equipment (especially gas turbine) operation requirements, the sulfur content of gas is an important input parameter. When the equipment is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 安翔叶亚兰王宏明
Owner JIANGSU MARITIME INST
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