China Instiute of Coal Science,China Coal Technology & Engineering Group
Department of Energy and Power Engineering,Tsinghua University

矿卡运输是露天煤矿的关键生产系统,随着绿色低碳和清洁环保要求的提高,能源转化和矿卡动力系统运行是露天煤矿大气污染物和温室气体排放的主要来源之一,其已成为研究热点。为研究露天矿卡能源与动力方案综合排放性,以某露天煤矿及其运输系统作为研究对象,对能源转化和矿卡动力2个子系统设计了3种基于煤氢协同的技术方案及另外1种传统技术路线的对比方案,确定研究范围和边界条件,建立研究模型和数据清单,以10a为周期对运输1m3·km的土石方或煤炭的燃料周期过程中的大气污染物和温室气体排放进行定量分析和对比。结果表明方案2采用绿氢动力的综合排放性最好,方案1和3可将排放从矿卡动力转移到能源转化环节,有利于采取集中有效措施进行减排,方案1的减排重点为脱硫和除尘,方案3和方案4的减排重点为CO2捕集、封存和利用,方案4矿卡柴油动力系统的大气污染物CO和HC+NOx排放量大,减排技术难度大,有必要开展矿卡新型清洁高效动力系统研究。

Haul truck transportation is a key production system in opencast coal mine. With the increasing requirements for green,low-carbon, clean and environmental protection, energy conversion and haul truck power, as one of the main sources of atmospheric pollutants and greenhouse gas emissions from opencast coal mine, have become research hotspots. In order to research the comprehensiveemission of energy and power scheme of haul truck, a certain open-pit coal mine and its transportation system were taken as the researchobject.Three technical schemes based on coal-hydrogen synergy and another comparison plan of traditional technology routes were designedfor the two subsystems of energy conversion and haul truck power.The research scope and boundary conditions were determined, and theresearch models and data lists were established.Quantitative analysis and comparative study were conducted on the atmospheric pollutantsand greenhouse gas emissions during the fuel cycle of transporting 1 m3·km of earthwork or coal over a period of 10 a. The result showsthat Scheme 2 uses green hydrogen power to achieve the best comprehensive emission performance. Schemes 1 and 3 can transfer emissionsfrom haul truck power to energy conversion, which is conducive to adopting centralized and effective measures for emission reduction. Theemission reduction focus of Scheme 1 is on desulfurization and dust removal, while the emission reduction focus of Scheme 3 and Scheme 4is on CO2 capture, storage, and utilization. Scheme 4 has a large emission of atmospheric pollutants including CO and HC+NOx from thediesel power system of the haul truck, making emission reduction technology difficult. It is necessary to research on a new clean and efficient power system of the haul truck.

中国煤科集团重点资助项目(2020-2-TD-ZD004)

刘少权,王海军,史翊翔,等.基于煤氢协同与柴油动力的露天矿卡综合排放性对比[ J].洁净煤技术,2023,29(11):161-166.

LIU Shaoquan,WANG Haijun,SHI Yixiang.Contrastiveresearch on comprehensive emission of haul truck based on coal-hydrogen synergy and Diesel engine[J].Clean Coal Technology,2023,29(11):161-166.