GB/T 34192-2017 in English

1. Determine boundaries and energy consumption statistical scope

The boundary division of the coking process starts with raw material input and product output, covering core links such as coal preparation, coking, and coke quenching. The energy statistical scope includes:

• Main production process: coking, coke quenching (dry quenching, wet quenching), coal gas purification and chemical product recovery.
• Auxiliary facilities: circulating water, sewage treatment, dust removal system.
• External links such as coal washing and coal storage, as well as life energy consumption are not included.

2. Benchmark Energy Consumption Calculation

The benchmark energy consumption is based on advanced process conditions and the industry average, taking into account the following factors:

• Raw material conditions: volatile matter, moisture and other parameters of the incoming coal.
• Product conditions: coke production method (top-loading coke oven or ramming coke oven).
• Climate factors: The impact of ambient temperature on energy efficiency.

3. Calculation and analysis of actual energy consumption

The actual energy consumption calculation formula is as follows:

Wherein: e_x is the actual energy consumption per unit product, and φ is the dry total coke volume during the statistical period.

Technical level optimization

• Improve the level of energy management and control: Use computer optimization control technology to improve the heating efficiency of coke ovens.
• Apply waste heat recovery technology: such as sensible heat recovery of raw coal gas and waste heat recovery of flue gas boilers.
• Promote high-efficiency equipment: Use high-temperature and high-pressure dry quenching technology, high-thermal conductivity silicon brick furnace walls, etc.

Optimize management level

• Improve energy measurement system: According to the requirements of GB 17167 and GB/T 21368, scientifically equip measurement instruments.
• Strengthen energy efficiency monitoring: Conduct energy efficiency tests regularly and adjust optimization measures based on the results.
• Establish an incentive mechanism: Reward departments or individuals with outstanding performance in energy conservation and consumption reduction.

Application Cases

A steel company implemented the GB/T 34192-2017 standard to evaluate the energy efficiency of the coking process and found that its baseline energy consumption was 125 kgce/t. By optimizing process parameters and improving equipment, the actual energy efficiency index dropped from 1.3 to 1.1, reaching the first-level level, and the annual energy saving exceeded 10,000 tons of standard coal.

Future Prospects

With the deepening of the green manufacturing concept and the advancement of energy technology, GB/T 34192-2017 will provide important support for the steel industry to achieve its carbon peak target. It is recommended that enterprises flexibly apply this standard based on actual conditions and actively participate in technological innovation in the field of energy efficiency evaluation.