关键词: 硫磺, 湿法成型, 安全绿色储存, 颗粒形状, 细粉含量, 爆炸特性, 粉尘控制, 粉尘抑制

Abstract:

Sulfur is a special chemical raw material, which is consumed in large quantities and highly dependent on imports in China. With the development and production of high sulfur gas fields in China, acid gas has become the main source of sulfur for domestic production. Faced with the challenges of small scale and high cost of traditional dry molding, Puguang Gas Field has innovatively developed a series of technologies such as efficient wet molding, precise dust prevention and control, and safe and green storage, establishing the largest sulfur production base in Asia. By revealing the large-scale solidification law of liquid sulfur, the first wet molding equipment in China has been developed, with a monomer capacity of 90 t/h and a product quality rate of 100%. Revealed the law of sulfur dust explosion, built the first full process dust prevention and control system, with a gas phase dust concentration less than 3 mg/m³. The 50 dam³ liquid sulfur storage system and 114 kt solid sulfur storage system have been built, and the scattered waste gas has been comprehensively utilized as a resource. The successful application of the complete set of technologies for sulfur wet molding and safe and green storage has reduced China's dependence on sulfur imports by 26 percentage points.

Key words: sulfur, wet molding, safe and green storage, particle shape, fine powder content, explosion characteristics, dust control, dust suppression