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  • CN 62-1112/TF 
  • ISSN 1005-2518 
  • 创刊于1988年
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智慧矿山专栏

地下铲运机自主铲装技术现状及发展趋势

  • 姜丹 ,
  • 王李管
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  • 中南大学资源与安全工程学院,湖南 长沙 410083
姜丹(1994-),女,四川资阳人,硕士研究生,从事矿山设备智能化研究工作。1273801185@qq.com

收稿日期: 2020-09-11

  修回日期: 2020-10-23

  网络出版日期: 2021-03-22

基金资助

国家重点研发计划项目“深部集约化开采生产过程智能管控技术”(2017YFC0602905)

Present Situation and Development Trend of Self-loading Technology for Underground Load-Haul-Dump

  • Dan JIANG ,
  • Liguan WANG
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  • School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China

Received date: 2020-09-11

  Revised date: 2020-10-23

  Online published: 2021-03-22

摘要

为提高地下铲运机铲装效率及作业精度,实现铲运机全自动作业,梳理了国内外地下铲运机自主铲装技术的相关理论技术和研究方法,并从环境感知与建模、铲斗轨迹控制和自动称重3个方面对铲装过程的研究成果进行了归纳总结。研究结果表明:当前环境感知与建模技术难以同时满足速度和精度的要求,存在铲斗轨迹控制难度大以及自动称重技术研究不全面等问题。研究多传感器信息融合技术,人工智能技术,以及适用于地下的通信网络是实现铲运机自主铲装的前提,也是未来开展该领域研究的重要方向。

本文引用格式

姜丹 , 王李管 . 地下铲运机自主铲装技术现状及发展趋势[J]. 黄金科学技术, 2021 , 29(1) : 35 -42 . DOI: 10.11872/j.issn.1005-2518.2021.01.162

Abstract

With the depletion of resources in open-pit mines,metal mines are gradually turning to deep mining. As the main equipment for loading and transporting ores in underground metal mines,the working environment of LHD(Load-Haul-Dump) is further deteriorated.The problems of harmful gases (CO,H2S,NH4,etc.),vibration,high stress and high temperature seriously affect people’s health.In order to protect the life health and personal safety of operators,improve the efficiency of mine operation and increase the economic benefits of mine,the intelligent mining technology of metal mine has been developed rapidly.The research on the automation of LHD has been carried out for more than 30 years,but the commercial system which has not fully realized the automatic loading can not be put into use.Because the shoveling is a dynamic and non-linear process,it is difficult to predict the change,which is the difficulty to realize the autonomous loading of LHD.In order to realize the full-automatic operation of LHD,this paper systematically studied the status quo and development trend of autonomous shoveling and loading of underground LHD,comprehensively summarized the three aspects of environmental perception and modeling,bucket trajectory control and automatic weighing,and analyzed the research status and shortcomings of its key technologies.The research results show that the environmental perception and modeling in the process of shoveling is mainly to establish the three-dimensional model of ore heap,and single type of sensor has shortcomings.Comprehensive use of the advantages of each sensor,information complementary and optimal combination can be realized.The interaction process between bucket and ore has the characteristics of dynamic change and non-linear,and the bucket trajectory control based on force is suitable for uniform medium,so it is difficult to apply in actual production.Reinforcement learning is widely used in the field of automatic control,through self-learning and adaptive environment to complete the operation task.The automatic weighing system can measure the effective load of the bucket and adjust the state of the ore in the bucket to prevent the ore from falling.There is a big gap in the research on the automatic weighing system at home and abroad.Compared with foreign countries,the automatic weighing technology in China is relatively backward,at the same time,the automatic weighing technology is mostly used in the ground loader,less in the underground.At present,there is also a big gap between China and foreign countries in the research of self loading technology of underground scraper.Strengthening cooperation in related fields and carrying out field test of LHD are the key points to promote the development of LHD in China.

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