GB/T 33956-2017 in English

This standard systematically regulates the heat balance test system of the continuous heating furnace for steel rolling, and establishes an energy consumption evaluation model with kJ/t as the unified measurement unit. Its technical highlights include:

1. Multi-dimensional test system: Covering 42 parameters in 8 categories such as fuel characteristics, combustion air, and material status, it requires the use of professional equipment such as infrared thermal imager and gas chromatograph for multi-point measurement.

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2. Dynamic compensation mechanism: Innovatively proposes the calculation formula of the flue gas correction coefficient b (Formula 19-20), which effectively solves the problem of heat measurement deviation under incomplete combustion conditions.

1. Test preparation phase:

• It is necessary to calibrate the Pitot tube, heat flow meter and other equipment in advance, with an error not exceeding ±2%
• The test time should avoid non-normal production periods such as roller replacement and maintenance

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2. Data collection specifications:

• Furnace temperature measurement needs to distinguish between preheating section/heating section/soaking section (Clause 4.5.1)
• Gas composition analysis should be conducted at least once per hour (Clause 8.2.1.2)