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High Efficiency Dust Scrubbers for continuous miner in Underground Mines

Journal of Central South University 2000年第4期12卷 205-211页

作者： WU Chao GU De-sheng College of Resources Environment and Civil EngineeringCentral South UniversityChangsha 410083China

Based on the experimental data by a full scale test model and the relevant existing achievements, four new concepts of group dust scrubbers were designed in the paper. The new dust scrubbers consist of two to four common dust separators in series: wet fan, wet Venturi and foam filter bed. Wetting and foaming agents are used to increase the efficiency of dust separation. High efficiency is not required for each part of the group dust scrubbers, but the whole system has a high working reliability. All parts of the group dust scrubbers have the most suitable separating efficiency for different size and concentration of dust particles in airflow, according to their technical features. Four group dust scrubbers have a high efficiency from 94.4% to 99.7% for separating respirable dust at a rational cost.

关键词： group dust scrubber foaming agent wetting agent wet-fan scrubber wet-Venturi scrubber foam filter bed continuous miner underground mine

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关于continuous miner译名的技术商榷

关于Continuous Miner译名的技术商榷

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2008年煤矿高效、安全、洁净开采机电一体化新技术研讨会

作者：任葆锐煤炭科学研究总院太原研究院

从发展历史、与掘进机的结构对比、应用及工艺、采标及检验方法、国内在册及使用情况及翻译理解等诸多方面进行了分析,认为将continuous miner译为掘采机,将有利于技术管理。

关键词： continuous miner 掘采机

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A computational fluid dynamics investigation of a novel flooded-bed dust scrubber with vibrating mesh

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International Journal of Mining Science and Technology 2022年第3期32卷 525-537页

作者： Zhaokuan Lu Aishwarya Rath Seyed Hassan Amini Aaron Noble Shima Shahab Department of Mechanical Engineering Virginia Polytechnic Institute and State UniversityBlacksburgVA 24061USA Department of Mining Engineering West Virginia UniversityMorgantownWV 26506USA Department of Mining and minerals Engineering Virginia Polytechnic Institute and State UniversityBlacksburgVA 24061USA

This work proposes a vibrating mesh screen as an alternative to the static mesh screen currently used in conventional flooded-bed dust scrubbers for removing airborne coal mine dust in the continuous mining *** assessments suggest that a vibrating screen may improve the dust collection efficiency of scrubber systems and mitigate the clogging issues associated with the conventional *** evaluate this hypothesis,computational fluid dynamics(CFD)simulations were carried out to assess the effects of vibration conditions(i.e.,frequency and amplitude)on the dust particle-mesh interaction and mesh wetting conditions,which are the two decisive factors in determining the dust collection *** results suggest that the vibrating mesh screen can enhance dust particle collision opportunities on the mesh and increase mesh wetted area as compared to the static mesh *** effects of mesh screen aperture,coal dust concentration,and spray nozzle flow rate on the performance of the vibrating mesh are also ***,a simplified three-phase flow simulation including airflow,dust particles,and water droplet spray is performed,and the results reflect a significant improvement of dust collection efficiency in the liquid-coated vibrating mesh screen.

关键词： Dust control Air filtration Flooded-bed scrubber Vibrating mesh filter continuous miner Computational fluid dynamics Multiphase flow

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