The first domestically produced 48,200 Nm³/h air separation unit was successfully launched at the Hubei Fertilizer Plant. This milestone not only marked a significant breakthrough in China's ability to develop large-scale air separation technology but also ended the long-standing reliance on imported systems for such critical infrastructure. The 48,200 Nm³/h oxygen separation plant, part of the coal-to-oil conversion project at the Hubei Chemical Fertilizer Plant, represents an innovative design developed entirely within China. It is the first large-scale air separation unit to be completed and successfully commissioned on the first attempt. The project was implemented under Sinopec’s localization strategy, aiming to enhance domestic capabilities in oxygen production. With numerous mechanical components, complex technological processes, and a high number of DCS control points, the project posed significant challenges. Prior to this, no similar project had been undertaken in China. Supported by Sinopec Group, the Hubei Chemical Fertilizer Plant collaborated with companies like Hangzhou Oxygen Co., Ltd. to overcome technical hurdles and complete the project ahead of schedule. This achievement saved the plant over 100 million yuan in foreign technology introduction costs. Faced with no existing technical data or prior experience, the plant ensured thorough preparation in areas such as organization, staff training, technological development, and material supply. During the commissioning phase, Sinopec dispatched a team of experts to provide on-site guidance. After six days of continuous effort, the plant successfully produced oxygen and nitrogen products, laying a solid foundation for the smooth operation of the Hubei Huafei Coal-to-Oil Project. This project not only demonstrates China’s growing technical independence but also sets a new standard for future large-scale industrial projects in the country.

Elastic Warping Machine

The Elastic Warping Machine, also known as spandex warping machine, is a textile machine used to produce elastic fabrics. It is designed to warp a wide range of elastic materials, including spandex, Lycra, and other stretchable fibers.

The machine consists of a creel, a warp beam, a tension control system, and a warping section. The creel holds the spools of elastic yarn, which are then fed into the warping section. The tension control system ensures that the yarn is evenly distributed and maintains a consistent tension throughout the process.

The warping section consists of a series of rollers that pull the yarn through a series of guides and onto the warp beam. The elastic yarn is then wound onto the warp beam, creating a tightly-woven fabric that can stretch and recover without losing its shape.

The Elastic Warping Machine is widely used in the production of a variety of elastic fabrics, including swimwear, athletic wear, lingerie, and medical garments. It is a highly efficient and cost-effective way to produce high-quality elastic fabrics with consistent performance and durability.

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