采煤机割煤粉尘治理关键技术及装备研究与应用
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摘要
针对采煤机割煤过程中的粉尘污染问题,遵循"先抑、后控、再降"的治理思路,提出了利用高效抑尘喷雾快速湿润破碎煤体,再利用控尘喷雾控制含尘气流沿煤壁一侧运移,最后利用机载喷雾引射除尘器沉降粉尘的综合治理措施。采用实验室实验和现场试验相结合的方法,重点开展了支架顶部组合喷雾抑尘、采煤机喷雾控降尘、采煤机机载除尘等关键技术及装备的研究,并在高产尘强度综采工作面进行了应用,将采煤机正常割煤时司机处的总粉尘质量浓度由3 097. 0 mg/m~3降至52. 6 mg/m~3,取得了显著的降尘效果。
In view of dust pollution problem in coal mining process,following the concept of "restraining first,controlling later and reducing finally",this paper puts forward a comprehensive treatment measure by using high efficiency anti-dust sprays to wet coal body rapidly,then controlling the dust flow along the side of the coal wall by using the dust control spray,and finally taking airborne spray ejector dust collector to control dust. The key technologies and equipments,such as combined spray dust suppression on the top of the support,spray dust control and dust removal by the shearer,and airborne dust removal on the shearer,were mainly studied by combining laboratory experiment and field experiment. It was also applied in the fully mechanized working face with high dust intensity,the total dust mass concentration at the driver's place during the normal coal cutting of the shearer was reduced from 3 097. 0 mg/m~3 to 52. 6 mg/m~3,the effect of dust removal was significant.
In view of dust pollution problem in coal mining process,following the concept of "restraining first,controlling later and reducing finally",this paper puts forward a comprehensive treatment measure by using high efficiency anti-dust sprays to wet coal body rapidly,then controlling the dust flow along the side of the coal wall by using the dust control spray,and finally taking airborne spray ejector dust collector to control dust. The key technologies and equipments,such as combined spray dust suppression on the top of the support,spray dust control and dust removal by the shearer,and airborne dust removal on the shearer,were mainly studied by combining laboratory experiment and field experiment. It was also applied in the fully mechanized working face with high dust intensity,the total dust mass concentration at the driver's place during the normal coal cutting of the shearer was reduced from 3 097. 0 mg/m~3 to 52. 6 mg/m~3,the effect of dust removal was significant.
引文
[1]李德文,郭胜均.中国煤矿粉尘防治的现状及发展方向[C]//第八届全国采矿学术会议论文集,2009.
[2]时训先,蒋仲安,褚燕燕.煤矿综采工作面防尘技术研究现状及趋势[J].中国安全生产科学技术,2005(1):41-43.
[3]马威.基于引射喷雾和挡尘帘的采煤机含尘气流控制技术研究[J].矿业安全与环保,2017,44(1):21-24.
[4]刘勇,张设计,吴国友,等.采煤机含尘气流控制及喷雾降尘技术的研究与应用[J].矿业安全与环保,2011,38(4):15-17.
[5]周刚.综放工作面喷雾降尘理论及工艺技术研究[D].青岛:山东科技大学,2009.
[6]刘荣华.综采工作面隔尘理论及应用研究[D].长沙:中南大学,2010.
[7]王海桥,施式亮,刘荣华,等.综采工作面司机处粉尘隔离技术的研究及实践[J].煤炭学报,2000,25(2):176-179.
[8]杨桐,杨俊磊.采煤机割煤喷雾降尘技术参数研究及应用[J].矿业安全与环保,2017,44(2):53-56.
[9]吴琼.综采工作面喷雾降尘机理及高效降尘喷嘴改进研究[D].阜新:辽宁工程技术大学,2007.
[10]李高正.采煤机高压引流喷射降尘技术研究[J].河南理工大学学报(自然科学版),2008,27(1):75-81.
[11]邵化振,张广军,李政,等.高压喷雾引射降尘装置的理论与实验研究[J].煤炭学报,2001,26(3):299-302.
[12]梁彤.综采工作面喷雾降尘技术研究[D].太原:太原理工大学,2003.
[13]邹常富.采煤机割煤产尘特性及防治技术研究[J].煤炭工程,2016,48(2):62-68.
[14]陈玉涛.采煤机含尘气流控制及喷雾降尘技术在新景矿的研究与应用[J].矿业安全与环保,2012,39(3):33-39.
[15]马威,刘勇.阳煤集团一矿高风速采煤工作面粉尘综合治理[J].煤炭工程,2015,47(2):76-78.
[2]时训先,蒋仲安,褚燕燕.煤矿综采工作面防尘技术研究现状及趋势[J].中国安全生产科学技术,2005(1):41-43.
[3]马威.基于引射喷雾和挡尘帘的采煤机含尘气流控制技术研究[J].矿业安全与环保,2017,44(1):21-24.
[4]刘勇,张设计,吴国友,等.采煤机含尘气流控制及喷雾降尘技术的研究与应用[J].矿业安全与环保,2011,38(4):15-17.
[5]周刚.综放工作面喷雾降尘理论及工艺技术研究[D].青岛:山东科技大学,2009.
[6]刘荣华.综采工作面隔尘理论及应用研究[D].长沙:中南大学,2010.
[7]王海桥,施式亮,刘荣华,等.综采工作面司机处粉尘隔离技术的研究及实践[J].煤炭学报,2000,25(2):176-179.
[8]杨桐,杨俊磊.采煤机割煤喷雾降尘技术参数研究及应用[J].矿业安全与环保,2017,44(2):53-56.
[9]吴琼.综采工作面喷雾降尘机理及高效降尘喷嘴改进研究[D].阜新:辽宁工程技术大学,2007.
[10]李高正.采煤机高压引流喷射降尘技术研究[J].河南理工大学学报(自然科学版),2008,27(1):75-81.
[11]邵化振,张广军,李政,等.高压喷雾引射降尘装置的理论与实验研究[J].煤炭学报,2001,26(3):299-302.
[12]梁彤.综采工作面喷雾降尘技术研究[D].太原:太原理工大学,2003.
[13]邹常富.采煤机割煤产尘特性及防治技术研究[J].煤炭工程,2016,48(2):62-68.
[14]陈玉涛.采煤机含尘气流控制及喷雾降尘技术在新景矿的研究与应用[J].矿业安全与环保,2012,39(3):33-39.
[15]马威,刘勇.阳煤集团一矿高风速采煤工作面粉尘综合治理[J].煤炭工程,2015,47(2):76-78.