GB/T 35062-2018 in English
VALIDTerms on low rank coal upgrading technology
- Issued on:2018-05-14
- Implemented on:2018-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
| Standard No: | GB/T 35062-2018 |
| Document status: | VALID |
| Title in English: | Terms on low rank coal upgrading technology |
| Title in Chinese: | 低阶煤提质技术术语 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2018-05-14 |
| Implemented on: | 2018-09-01 |
| ICS Classification: | 73.040-Coals |
| Chinese Classification: | D20-Solid fuel ore in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | technology coal chemical industry terms
process technology terms low-rank coal quality improvement technology standard formulation low-rank coal quality improvement technology refers technological evolution low-rank coal quality improvement technology |
| Related Topics: | mass spectrometry terms
mass spectrometry terms coal technology Coal technology quality technology GBT35062 GB/T 35062-2018 low rank coal Improve quality Coal rank division Evaluation of low coal rank coal and rock |
《GB/T 35062-2018低阶煤提质技术术语》由TC42（全国煤炭标准化技术委员会）归口，TC42SC2（全国煤炭标准化技术委员会煤质与资源评价分会）执行，主管部门为中国煤炭工业协会。
Introduction
Interpretation of GB/T 35062—2018 National Standard of the People's Republic of China
1. Background of Standard Formulation
Low-rank coal quality improvement technology refers to improving the quality of low-rank coal (such as lignite, long flame coal, etc.) by physical, chemical or thermodynamic means to improve its utilization efficiency and economic value. With the growth of global energy demand and the increase of environmental pressure, improving the utilization efficiency of coal resources has become an important issue.
GB/T 35062—2018 "Terms of Low-rank Coal Quality Improvement Technology" is managed by the National Coal Standardization Technical Committee, aiming to unify industry terminology and standardize the research and application of low-rank coal quality improvement technology. This standard is based on years of research and practice, combined with advanced technologies at home and abroad, to form a systematic terminology system.
2. Comparison of standard frameworks
| Dimensions | GB/T 35062—2018 | References |
|---|---|---|
| Term classification | Basic terms, process technology terms, process parameters and evaluation index terms | GB/T 1.1—2009 |
| Scope of application | Principles, processes, and procedures involved in low-rank coal upgrading technology | Coal chemical industry terms (GB/T 31428—2015) |
| Core content | Key technologies for dehydration, pyrolysis and molding | Low-medium temperature pyrolysis of coal (GB/T 31428—2015) |
3. Detailed explanation of key terms
Dehydration and quality improvement technology:
- Evaporative dehydration and quality improvement: Water is separated from the coal body in gaseous form by heating.
- Non-evaporative dehydration and quality improvement: Liquid water is directly removed by mechanical extrusion and other methods.
Pyrolysis and quality improvement technology:
- Internal heat pyrolysis: The heating medium is in direct contact with the coal to improve the reaction efficiency.
- External heat pyrolysis: Heat is transferred through inert gas, suitable for large-scale production.
Molding and quality improvement technology:
- Cold pressing: Forming briquette by mechanical pressure under low temperature conditions.
- Hot pressing: Combining high temperature and high pressure conditions to improve the strength and stability of briquette.
4. Analysis of technological evolution
Low-rank coal quality improvement technology has undergone a multi-dimensional development process from simple dehydration to comprehensive pyrolysis and molding. In recent years, with the improvement of environmental protection requirements and the increase in demand for energy efficiency optimization, new technologies such as microwave drying and hydrothermal dehydration have gradually been applied.
These new technologies not only improve the efficiency of coal utilization, but also significantly reduce energy consumption and environmental impact. For example, rapid pyrolysis technology achieves efficient liquid product generation by precisely controlling the heating rate.
5. Implementation Suggestions
- Equipment selection:Rationally select dehydration, pyrolysis, and molding equipment based on coal quality characteristics and target product requirements.
- Process optimization:Adjust process parameters such as residence time, drying rate, etc. based on actual conditions to ensure the best quality improvement effect.
- Environmental monitoring:Real-time monitoring of pollutant emissions during the production process to ensure compliance with environmental protection requirements.
- Technology upgrade:Continue to pay attention to the latest industry trends and introduce advanced technologies and equipment in a timely manner.
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