摘要
为了破解原煤排矸系统手选劳动强度大、运行成本高、智能化水平低的瓶颈,蒋庄煤矿采用“50~200 mm智能干选,>200 mm激光雷达分选,>50 mm矸石全破碎,集控中心集中控制”耦合集成化控制技术,对2014年投运的浅槽重介-人工反手选工艺实施全流程智能化再造。研究以滚轴筛三级分级为起点,将50~200 mm块煤引入X射线-视觉双模智能干选,>200 mm块煤经3D激光雷达识别后由引导板高速分流,全部>50 mm矸石通过双齿辊破碎机降至<80 mm后由管状带式输送机封闭输送;同步嵌入集中控制平台,把给煤、筛分、破碎、分选、运输、除尘、视频七环节数据接入调度室,实现“一键启停+远程联动+故障自诊断”。生产实践表明:原煤系统工效从320.51 t/工跃升至757.57 t/工;年节约总成本417.06万元;现场作业取消人工拣选及矿车放矸,连续两年轻伤及以上事故为零;系统具备干湿兼容切换功能,可在5 min内切换至备用浅槽重介系统,保障连续生产。该实践形成了“分级-识别-破碎-集控”一体化排矸工艺,构建了老龄矿井在资源枯竭期以技术减人、以智能保安、以集约降本的示范模式,为同类焦煤选煤厂提供了可复制、可推广的低成本智能化升级路径。
To overcome the bottlenecks of high labor intensity,high operating costs,and low intelligence levels in the manual separating process of the raw coal refuse discharging system,Jiangzhuang Coal Mine implemented a full-process intelligent reconstruction of its“shallow-depth heavy medium bath&manual reverse separating”process(in operation since 2014).This was achieved through the coupling and integration of control technologies:“50~200 mm intelligent dry separating,>200 mm LIDAR separating,and>50 mm total refuse crushing.”The study utilizes a three-stage roller screen classification as the starting point.Raw coal blocks of 50~200 mm are directed into an X-ray&vision dual-mode intelligent dry separating system,while blocks>200 mm are identified by 3D LIDAR and diverted at high speed via guide plates.All refuse>50 mm is reduced to<80 mm by a double-toothed roll crusher and transported via an enclosed pipe belt conveyor.Simultaneously,a centralized control platform was embedded to integrate data from seven stages—feeding,screening,crushing,separating,transportation,dust extraction,and video monitoring—into the dispatch center,enabling“one-click start-stop,remote linkage,and fault self-diagnosis.”Production practice demonstrates that the labor efficiency of the raw coal system surged from 320.51 t/shift to 757.57 t/shift,with an annual cost saving of 4.1706 million RMB.Manual separating and mine-car refuse discharge have been eliminated,resulting in zero minor injuries or major accidents for two consecutive years.The system features wet-dry compatibility,allowing a switch to the backup shallow-depth system within 5 minutes to ensure continuous production.This practice establishes an integrated“classification-identification-crushing-centralized control”refuse discharging process.It constructs a demonstration model for aging mines in their resource-depletion stage to reduce manpower through technology,ensure safety via intelligence,and cut costs through intensification,providing a replicable and scalable low-cost intelligent upgrade path for similar coking coal preparation plants.
作者
冯中爱
代文飞
高文宇
曹浩
王琪
敖建东
洪浩
FENG Zhongai;DAI Wenfei;GAO Wenyu;CAO Hao;WANG Qi;AO Jiandong;HONG Hao(Zaozhuang Mining Group Jiangzhuang Coal Mine,Zaozhuang 277519,China;Zaozhuang Mining Group Coal Washing and Processing Center,Zaozhuang 277000,China)
出处
《选煤技术》
2025年第5期91-96,共6页
Coal Preparation Technology
关键词
原煤排矸系统
智能干选
激光雷达分选
矸石全破碎
集成化控制
raw coal refuse discharging system
intelligent dry separating
LIDAR separating
total refuse crushing
integrated control
