中国石油网消息：8月10日，兰州石化30万吨/年全密度聚乙烯装置高负荷安稳运行。这是装置A线K-8102磁悬浮风机国产化改造投运后，在37摄氏度高温天气下的“实战表现”。

China Petroleum Network News: On August 10th, the 300,000-ton/year full-density polyethylene plant of Lanzhou Petrochemical operated stably at high load. This was the "real combat performance" of the device's Line A's K-8102 magnetic levitation fan after the domesticization and renovation of the equipment, under the 37-degree Celsius high-temperature conditions.

“改造后的磁悬浮风机运行平稳，挤压单元持续保持高负荷生产状态，完全可以满足茂金属系列产品牌号切换生产工况。”全密度区域资深高级主管韦性尊表示。

The modified magnetic levitation fan operates smoothly, and the compression unit maintains a high-load production state continuously. It is fully capable of meeting the production requirements for switching between different grades of the metallocene series products. Senior executive Wei Xizun from the full-density area stated.

长期以来，兰州石化全密度聚乙烯装置挤压风送系统存在季节性运行短板。进入夏季，原有风机电机升温过快、出口温度居高不下，挤压系统不得不降低生产负荷，在一定程度上制约着装置的稳产增效。

For a long time, the extrusion air conveying system of the full-density polyethylene unit in Lanzhou Petrochemical has had seasonal operational shortcomings. As summer approaches, the original fan motors heat up too quickly and the outlet temperature remains high. As a result, the extrusion system has to reduce its production load, which to a certain extent restricts the stable and efficient operation of the unit.

为解决这一难题，兰州石化组建专项攻关小组，全面梳理设备运行痛点，通过深度技术调研、行业对标分析以及多套方案论证比选，最终确定采用磁悬浮风机替代传统风机的升级改造方案。

To address this challenge, Lanzhou Petrochemical established a special research team to comprehensively analyze the pain points in equipment operation. Through in-depth technical research, industry benchmarking analysis, and multiple scheme comparison and selection, they ultimately determined to adopt a magnetic suspension fan as a replacement for the traditional fan in the upgrade and transformation plan.

相较于传统风机，磁悬浮风机具有能源损耗小、运行平稳可靠、故障发生率低、耐高温性能突出等优势，能够适配夏季高温生产条件，可以保障挤压风送系统持续高负荷稳定运转。

Compared with traditional fans, magnetic levitation fans have the advantages of low energy consumption, stable and reliable operation, low failure rate, and outstanding high-temperature resistance. They can be adapted to the summer high-temperature production conditions and can ensure the continuous and stable operation of the extrusion and pneumatic conveying system under high load.

该风机于7月24日完成国产化改造并投入运行。经过连续运行调试与牌号切换验证，目前磁悬浮风机可顺利支撑茂金属产品5种牌号的切换工况，能够全面匹配挤压风送系统的各类运行需求。在消除夏季高温制约装置稳定运行的同时，进一步提升了装置的自动化运行水平，为装置持续提质增效注入了强劲动力。

This fan was completed with domesticization transformation and put into operation on July 24th. After continuous operation debugging and brand switching verification, the magnetic levitation fan can now smoothly support the switching of 5 brands of metallocene products, and can fully meet the various operational requirements of the extrusion air conveying system. By eliminating the constraints of high summer temperatures on the stable operation of the device, it has further enhanced the automation operation level of the device, injecting strong impetus for the continuous improvement and efficiency enhancement of the device.

此次改造是国内聚烯烃行业首次在挤压系统应用磁悬浮风机，有效破除了长期制约装置高负荷生产运行的瓶颈，标志着兰州石化在核心装备国产化替代、关键生产工艺优化升级领域取得重要突破。

This renovation is the first time that magnetic levitation fans have been applied in the extrusion system in the domestic polyolefin industry. It has effectively broken through the bottleneck that has long restricted the high-load production and operation of the equipment, marking an important breakthrough for Lanzhou Petrochemical in the field of core equipment domestic substitution and key production process optimization and upgrading.