自动化放煤控制系统研究
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摘要
针对综采放顶煤工作面后端的综放工作面采用人工放煤控制方式,与综采放顶煤工作面前端的综采工作面自动化水平差距较大的问题,研究了一种自动化放煤控制系统。根据放顶煤液压支架上安装的倾角传感器和前后部刮板输送机千斤顶中的行程传感器,控制液压支架放煤机构位姿,实现放煤量精准控制;通过在液压支架尾梁上安装云台摄像仪和红外发射器,对放煤全过程进行实时视频监视,实现后部刮板输送机运煤量和直线度的检测与控制;利用图像灰度识别技术进行煤矸识别,检测采出顶煤的含矸率。该系统提高了放煤效率和质量,为实现综采放顶煤工作面无人化提供了思路。
Aiming at problem that fully mechanized caving face at the back end of fully mechanized top coal caving face adopted manual caving control method,its automation level differed greatly from that at the front end of fully mechanized top coal caving face,an automatic coal caving control system was studied.According to inclination sensors installed on top coal caving hydraulic support and travel sensors in jacks of front or rear scraper conveyor,position and attitude of caving mechanism of the hydraulic support are controlled to achieve precise control of caving quantity;by installing pan-tilt camera and infrared transmitter on tail beam of the hydraulic support,real-time video monitoring is carried out in whole process of coal caving to realize detection and control of coal transportation quantity and straightness of the rear scraper conveyor;image gray recognition technology is used to identify coal-gangue and detect gangue content of top coal.The system improves efficiency and quality of coal caving,and provides an idea for realizing unmanned fully mechanized top coal caving face.
Aiming at problem that fully mechanized caving face at the back end of fully mechanized top coal caving face adopted manual caving control method,its automation level differed greatly from that at the front end of fully mechanized top coal caving face,an automatic coal caving control system was studied.According to inclination sensors installed on top coal caving hydraulic support and travel sensors in jacks of front or rear scraper conveyor,position and attitude of caving mechanism of the hydraulic support are controlled to achieve precise control of caving quantity;by installing pan-tilt camera and infrared transmitter on tail beam of the hydraulic support,real-time video monitoring is carried out in whole process of coal caving to realize detection and control of coal transportation quantity and straightness of the rear scraper conveyor;image gray recognition technology is used to identify coal-gangue and detect gangue content of top coal.The system improves efficiency and quality of coal caving,and provides an idea for realizing unmanned fully mechanized top coal caving face.
引文
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[2]王虹.综采工作面智能化关键技术研究现状与发展方向[J].煤炭科学技术,2014,42(1):60-64.WANG Hong.Development orientation and research state on intelligent key technology in fully-mechanized coal mining face[J].Coal Science and Technology,2014,42(1):60-64.
[3]王保平.放顶煤过程中煤矸界面自动识别研究[D].济南:山东大学,2012.
[4]宋庆军.综放工作面放煤自动化技术的研究与应用[D].徐州:中国矿业大学,2015.
[5]刘清,孟峰,牛剑峰.放煤工作面支架姿态记忆控制方法研究[J].煤矿机械,2015,36(5):89-92.LIU Qing,MENG Feng,NIU Jianfeng.Research on memory control method for support postures of top coal caving mining face[J].Coal Mine Machinery,2015,36(5):89-92.
[6]牛剑峰.无人工作面智能本安型摄像仪研究[J].煤炭科学技术,2015,43(1):77-80.NIU Jianfeng.Research on intelligent intrinsically safe camera for unmanned fully-mechanized coal mining face[J].Coal Science and Technology,2015,43(1):77-80.
[7]于国防,邹士威,秦聪.图像灰度信息在煤矸石自动分选中的应用研究[J].工矿自动化,2012,38(2):36-39.YU Guofang,ZOU Shiwei,QIN Cong.Application research of image gray information in automatic separation of coal and gangue[J].Industry and Mine Automation,2012,38(2):36-39.
[8]衡丹丹,王凤文,苗立刚.基于煤炭运量控制系统的煤与煤矸石图像的识别[J].露天采矿技术,2008,23(5):47-49.HENG Dandan,WANG Fengwen,MIAO Ligang.Recognition of coal and gangue based on coal transport volume control system[J].Opencast Mining Technology,2008,23(5):47-49.
[9]牛剑峰.一种放顶煤工作面自动放煤控制系统及其放煤方法:201110388729.7[P].2012-06-13.
[10]田甜.基于图像处理技术的煤岩分析及煤堆体积测量[D].太原:太原理工大学,2011.
[11]程健,祖丰收,王东伟,等.露天储煤场无人机自动盘煤系统研究[J].煤炭科学技术,2016,44(5):160-165.CHENG Jian,ZU Fengshou,WANG Dongwei,et al.Study on unmanned aerial vehicle automatic coal volume measuring system of open coal storage yard[J].Coal Science and Technology,2016,44(5):160-165.
[12]杨曌.基于视觉测量的综采工作面直线度测量技术研究[J].煤炭工程,2016,48(9):134-136.YANG Zhao.Research on measurement technology of working face straightness based on vision measurement[J].Coal Engineering,2016,48(9):134-136.
[13]崔满堂,高林生,郭红军,等.放煤步距对厚煤层顶煤冒放规律的影响[J].科技创新与应用,2013(21):106.
[14]潘越,曾哲,张恩瑜.基于MATLAB和图像灰度值对X射线探测煤矸识别的研究[J].煤炭技术,2017,36(11):307-309.PAN Yue,ZENG Zhe,ZHANG Enyu.Research on Xray detection of coal gangue recognition based on MATLAB and image gray value[J].Coal Technology,2017,36(11):307-309.
[15]郜高峰,杜恩友,梁文立,等.在线灰分检测仪在裴沟煤矿的应用[J].煤炭技术,2009,28(11):139.GAO Gaofeng,DU Enyou,LIANG Wenli,et al.Application of online ash instrumentation inspection instrument in Peigou Coal Mine[J].Coal Technology,2009,28(11):139.