
第44卷
第1期 2017年2月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
胡夫.煤层注H,S吸收液的工艺参数研究[J].矿业安全与环保,2017,44(1):1-4.
文章编号:10084495(2017)01000104 试验研究
煤层注H,S吸收液的工艺参数研究
胡夫
(中煤科工集因重庆研究院有限公司,重庆400037)
Vol. 44 No. 1 Feb.2017
摘要:为了解决煤层注H,S吸收液的工艺及吸收液添加工艺中存在的间题,以新疆某煤矿+475m 西B+2综放工作面为研究对象,开展了煤层注水工艺参数研究,并通过添加H,S复合吸收剂,重点考查了H,S吸收效率的影响因素及其规律。研究结果表明,适宜的煤层注水条件为注水压力6MPa,添加的湿润剂质量分数0.3%,吸收液质量分数1.0%,在该条件下割煤时司机处和支架人行道的H,S吸收效率分别为65.1%和71.4%;放煤时放煤处的H,S吸收效率可达56.3%。试验结果可为煤矿现场的 H,S治理及其工艺参数研究提供参考依据。
关键词:煤层注水;湿润剂;湿润半径;H,S;复合吸收剂;吸收效率
中图分类号:TD711*.42
文献标志码:A
网络出版时间:2017-02-0710:40
网络出版地址:http://wwwcnki.net/kcms/detail/50.1062.TD.20170207.1040.024.html
Study onProcessParameters of InjectingH,S Absorption Solution into Coal Seams
HUFu
( China Coal Technology and Engineering Group Chongging Research Institute, Chongqing 400037, China)
Abstract: In order to solve the problems in the injection of H,S absorption solution in the coal seam and the addition of the absorption solution, in this paper, west B+2 fully mechanized caving face on +475 m level in a coal mine in Xinjiang Region was taken as the research object, research was made on the technological parameters of water injection in coal seams, and examination was focused on the influence factors of H,S absorption efficieney and its laws by adding H, S compound absorbent. The experimental results showed that the suitable conditions were 6 MPa of water injection pressure, 0. 3% of the added wetting agent concentration and 1. 0% of the absorbing solution concentration. Under such conditions, H,S absorption efficiency at the driver position of the shearer and in the support sidewalk was respectively 65. 1% and 71. 4% , and the H,S absorption efficiency at the coal caving position reached 56. 3%. The test results can be used as the reference basis for the treatment of H,S and the study of its process parameters in coal mines.
Keywords: water injection in coal seam; wetting agent; wetting radius; H,S; compound absorbent; absorption efficiency
H,S是煤矿并下常见的毒害气体之一,当H,S 体积分数为0.2×10时就能闻到明显的臭鸡蛋气味,在1.0x10-"时,数秒钟内能使人失去知觉,甚至死亡。另外,由于H,S化学活性较强,易腐蚀金属铁质设备,从而影响井下设备的使用寿命,带来安全隐患[1-5]。我国内蒙、新疆、山西等地区就存在部分矿
收稿日期:2016-08-08;2016-12-28修订
基金项目:国家自然科学基金项目(U1261205)
作者简介:胡夫(1980一),男,重庆人,碳士,助理研究员,主要从事煤矿粉尘防治及硫化氢防治方面的研究工作。
Tel ;02365239027,Email : yh2075@ 163, com。万方数据
井H,S体积分数超限的间题(大于6.6×10-),由于缺乏可靠的治理技术,一些采区被迫封闭,从而造成资源的严重浪费(6-7)。目前,国内外防治H,S的主要措施有增加风量、喷酒碱性溶液及问煤层预注碱液等[1,7-10],尽管这些措施的治理效果不甚理想,但采用煤层预注碱液等主动性防治措施必将是未来治理H,S的重要方向。目前,由于煤层注吸收液的工艺及吸收液添加工艺没有得到较好解决,导致煤矿现场应用时的治理效果较差,未能推广使用。有鉴于此,笔者通过对新疆某煤矿+475m西B+2综放工作面进行注水工艺参数研究,并通过添加H,S复合吸收
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