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Since Daqing Petrochemical Company Machinery Factory produced the first three-stage catalytic cracking cyclone separator in China in 1984, it has been at the forefront of the market in the development of this equipment. In recent years, the plant has increased investment in R&D, built a state-of-the-art automatic controlled cyclone separation experimental test device, and developed a new three-spin single-tube structure with high-wear-resistant ceramic liners, which was last February. Guangzhou Petrochemical Company's catalytic device was put into use for the first time. After the device was put into operation, the problem of blockage of dust and dirt in the operation of the original steel cyclone separator was solved. While reducing the system pressure drop, the amount of single pipe treatment was increased, and the smoke gas processing capacity was improved by more than 1.5 times. Efficiently recover the energy of flue gas, extend the service life of the smoke machine and reduce the emission of harmful substances.
It is understood that domestic oil refining companies have more than 100 sets of catalytic cracking units, of which over 95% use flue gas turbines to recover energy. The three-stage cyclone separator, which is known as the protector of the smoke machine, is an important dust removal device for flue gas and energy recovery in petrochemical catalytic cracking units.
At present, China's refinery catalytic cracker generally uses stainless steel lining three-stage cyclone separator, due to poor wear resistance of conventional steel cyclone separator, the service life is only about 6 years. The wear resistance of the new three-spin single-tube ceramic lining is about 10 times that of steel, the service life can be extended to 15 to 20 years, and it has the remarkable features of easy replacement and steel saving, and can save 100 million in annual update cost. Yuan above. According to relevant experts, this independent research and development technology is a major issue in the field of energy conservation and environmental protection. R & D results have a higher promotion value in refining and chemical companies.
Three-stage cyclone technology reaches international advanced
As of June 20, the ceramic-lined single-tube three-stage cyclone separator independently researched and developed by the Daqing Petrochemical Company Machinery Plant has been put into trial operation for more than one year at Guangzhou Petrochemical Company's 2 million tons/year catalytic device. The operating results showed that the dust concentration at the outlet of this separator was less than 40 mg/m3, the measured pressure drop was less than 12 kPa, and particle dusts larger than 8 μm were basically separated and reached the international technical specifications of similar products.