高深直溜井冲击产尘治理技术研究
投稿时间:2019-07-23  修订日期:2019-09-24  点此下载全文
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作者单位E-mail
邹常富 中煤科工集团重庆研究院有限公司 3051617571@qq.com 
基金项目:国家重点基础研究发展计划(973计划)
中文摘要:通过对夏甸金矿高深直溜井卸矿过程中形成的冲击风流和冲击产尘规律进行了分析,提出了适宜于溜井卸矿的卸压措施,将冲击风速降低至10m/s以内,并在卸压的基础上采用高效湿式除尘器抽尘净化措施对冲击产尘进行治理,实践表明,采用卸压除尘治理措施后,溜井出口巷道内总粉尘浓度由600.8mg/m3降至12mg/m3,降尘效率达98%,呼吸性粉尘浓度从166.7mg/m3降至8mg/m3,降尘效率达95.2%,有效的解决了冲击产尘污染问题,为金属矿山溜井返尘提供了参考依据。
中文关键词:高深直溜井  冲击风流  冲击产尘  卸压除尘  降尘效率
 
Study on the technology of dust production in high-deep straight shaft
Abstract:Through the analysis of the impact wind current and impact dust generation process during the unloading process of the high-deep straight shaft in Xiadian Gold Mine, the pressure relief measures suitable for the unloading of the shaft are proposed, and the impact wind speed is reduced to less than 10m/s. On the basis of pressure relief, high-efficiency wet dust collector dust purification measures are used to control the impact dust generation. Practice shows that after the pressure relief dust removal treatment measures, the total dust concentration in the exit tunnel of the well is reduced from 600.8mg/m3 to 12mg/m3. The dust reduction efficiency is 98%, the concentration of respirable dust is reduced from 166.7mg/m3 to 8mg/m3, and the dust reduction efficiency is 95.2%, which effectively solves the problem of impact dust pollution and provides a reference for the return of dust from metal mines.
keywords:High-deep straight shaft  Shock current  Impact dust  Pressure relief  Dust reduction efficiency  
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