Mining Engineering and Resource Development
Mining Engineering and Resource Development. 2026; 2: (1) ; 10.12208/j.merd.20260005 .
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1陕西新能选煤技术有限公司 陕西西安
2山西汇永青峰选煤工程技术有限公司 山西朔州
*通讯作者： 王进,单位：陕西新能选煤技术有限公司 陕西西安; ；
针对选煤厂振动筛传统弹簧刚度固定、阻尼不可调及易疲劳失效等问题，研发多层膜片式空气弹性自适应支撑系统，建立气压-变形耦合非线性刚度模型，并构建长短期记忆网络（LSTM）预测、模糊比例-积分-微分（PID）和多传感融合闭环调控方法。试验表明：0.4～0.6 MPa下承载力≥30 kN，振动传递率为0.21；工业应用后振动传递量降低35%以上、噪声降低10%以上、综合能耗降低22%～25%。该技术可提升选煤设备减振、可靠性与智能运维水平。
To address the fixed stiffness, non-adjustable damping and fatigue failure of conventional steel or rubber spring supports used in vibrating screens of coal preparation plants, a multilayer diaphragm air-elastic adaptive support system was developed. A pressure-deformation coupled nonlinear stiffness model was established, and a closed-loop control method integrating Long Short‑Term Memory (LSTM) prediction, fuzzy Proportional‑Integral‑Derivative (PID) regulation and multisensor data fusion was constructed. The support capacity was no less than 30 kN within 0.4-0.6 MPa, the measured vibration transmissibility was 0.21, and the foundation amplitude was reduced by 36.5%. After application on ten large linear vibrating screens, vibration transmission decreased by more than 35%, operating noise by more than 10%, and comprehensive energy consumption by 22%-25%. The system integrates adjustable stiffness, redundant fault switching and condition monitoring, providing a practical solution for low-vibration, low-noise and long-period operation of coal preparation equipment.
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