Changzhou Changheng Jinggong Automation Equipment Co., Ltd. partnered with universities to develop a specialized drying system for bleaching powder materials. This innovative equipment successfully addressed key challenges in the industry, such as an intermittent drying process, severe air pollution, high labor demands, and inconsistent product quality. The new device is a batch-type continuous dryer that offers fast drying speeds, high evaporation efficiency, improved product quality, reduced dust emissions, stable performance, and ease of operation.
After extensive testing and practical application, the equipment met all requirements for continuous drying, automation, dust collection, and environmental protection in the bleaching powder industry. According to Zhao Hongfu, head of Changheng Seiko, at the end of last year, Russia’s Wusuli Chemical Industry Co., Ltd. approached the company, pointing out that most global bleaching powder drying processes relied on American disc dryers. However, these dryers were known for their discontinuous operation, significant air pollution, high labor intensity, and unstable product quality—issues that also affected many domestic manufacturers.
Upon receiving this feedback, the company quickly formed a technical team, including experts from Jiangsu Petrochemical College. Within just four months, they developed a small-scale experimental drying device tailored for bleaching powder. In May 2005, the Russian company visited again and was impressed by the working prototype in the production workshop. Following further evaluations, they confirmed the device's reliability and stability, leading to a contract for a technical transformation project with an annual output of 50,000 tons of bleaching powder drying equipment.
This collaboration marked a major breakthrough for the company, demonstrating its ability to innovate and meet international standards in industrial drying technology.
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