兰州石化高密度聚乙烯装置在突破产能、降本增效赛道上跑出“加速度”

Core Viewpoint - The article highlights the successful operational improvements and innovations at the Lanzhou Petrochemical's high-density polyethylene (HDPE) plant, which has significantly increased production efficiency and capacity, demonstrating the potential for older facilities to achieve new levels of performance through targeted upgrades and teamwork. Group 1: Production Achievements - In 2025, the HDPE plant produced 176,000 tons of polyethylene, exceeding its annual production target [1] - The average operational days per month increased from 26 to over 30, indicating a substantial improvement in stable operation levels [1] Group 2: Equipment Optimization - A "breakthrough battle" was initiated to address the insufficient pressure from the fan, which was critical for product delivery to downstream processes [4] - The utilization of an idle fan helped to resolve the pressure issue, leading to a nearly 10% increase in production capacity post-modification [5] Group 3: Production Efficiency Improvements - A task force was established to analyze and optimize the transition process between different product grades, reducing the transition time from 8 hours to 3-4 hours and decreasing the amount of off-spec products by approximately 40 tons per transition [7] - This optimization resulted in an annual economic benefit of around 500,000 yuan [7] Group 4: Cost Reduction Strategies - The introduction of ton packaging technology allowed for the direct packaging of powder materials, eliminating the need for the extrusion and granulation process, thus shortening the production chain and reducing energy consumption [10] - The packaging capacity was increased from 550 kg to 850 kg per bag, leading to a 30% reduction in packaging material costs and improved efficiency in packaging and transportation [10] Group 5: Continuous Improvement - Ongoing technological innovations and management optimizations are continuously revitalizing the aging plant, breaking through production capacity ceilings while achieving quality improvements and cost reductions [11]