Development of a specially designed drill bit for down-the-hole air hammer to reduce dust production in the drilling process
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- 作者：Yongjiang Luoa ; Jianming Penga ; pengjm@jlu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Lijia Lia ; Jiangfu Hea ; Xin Gana ; Kun Yina ; Zhiqiang Zhaob
- 关键词：Drilling dust control ; Down-the-hole air hammer ; Drill bit
- 刊名：Journal of Cleaner Production
- 出版年：2016
- 出版时间：20 January 2016
- 年：2016
- 卷：112
- 期：part_P1
- 页码：1040-1048
- 全文大小：3353 K
文摘
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A special structure drill bit for reverse circulation DTH air hammer is designed.
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Orthogonal experimental design was used to optimize the parameter of the drill bit.
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Experimental results verified the CFD approach is capable for our simulation.
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Parameters of the suction nozzles are key parameters for the suction capacity.
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Using modified drill bit can obtain a clean working environment for drilling workers.