August 9, the use of urea granulation tower hump suppression device scraper technology Daqing Petrochemical Company fertilizer plant ammonia plant after 60 days of production run, grain scraper arm smooth surface, no urea bonding material, which marked the troubled domestic major fertilizer production enterprises for many years scraper hump problems have been successfully cracked. This technology was developed by Daqing Petrochemical Company and the Shanghai health analysis Fertilizer Plant Co., Ltd. jointly developed ultrasound.
According to reports, Daqing Petrochemical Company 520,000 tons of ammonia fertilizer plant equipment during operation, the urea particles in the granulation scraper arm to generate a similar hump-shaped, up to 2.5 meters, 15 tons of piled tower peak, likely to cause both ends of the material deformation or fracture under arm, to produce a security risk. Some domestic fertilizer producers have tried to use shock pulse beat, steel cutting and other processing scraper arm hump formation, the effect is not obvious.
August 2010, Daqing Petrochemical Company urea fertilizer plant by plant site investigation and technical analysis to determine urea solution using ultrasonic adhesion scraping arm problems, and analysis of ultrasound with the Shanghai Health Equipment Co., Ltd. in collaboration urea granulation tower suppression device scraper hump project. Project team for the agglomeration of urea dust adhesion characteristics, developed a new accumulation of powder and stainless steel hood body inclined ultrasonic peeling device, to suppress the generation of granulation during the hump, and stainless steel hood surface coating polymer nano- polymer coating, granulation tower solve the fertilizer business unit scraper hump formation of the problem. (Hao Yi)