[1]吴勇①,周建敏①,汪帅文①,等.剪切参数对混装乳化炸药稳定性及爆炸性能的影响[J].爆破器材,2024,53(03):10-16.[doi:10.3969/j.issn.1001-8352.2024.03.002]
　WU Yong,ZHOU Jianmin,WANG Shuaiwen,et al.Influence of Shear Parameters on the Stability and Explosion Performance of Mixed Emulsion Explosives[J].EXPLOSIVE MATERIALS,2024,53(03):10-16.[doi:10.3969/j.issn.1001-8352.2024.03.002]
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剪切参数对混装乳化炸药稳定性及爆炸性能的影响()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
53
期数:
2024年03
页码:
10-16
栏目:
基础理论
出版日期:
2024-06-04

文章信息/Info

Title:
Influence of Shear Parameters on the Stability and Explosion Performance of Mixed Emulsion Explosives
文章编号:
5898
作者:
吴勇①; 周建敏①; 汪帅文①; 肖明辉②
①保利新联爆破工程集团有限公司（贵州贵阳，550002）
②哈密市公安局治安支队（新疆哈密，839000）
Author(s):
WU Yong①;  ZHOU Jianmin①;  WANG Shuaiwen①;  XIAO Minghui②
① Poly Xinlian Blasting Engineering Group Co., Ltd. (Guizhou Guiyang, 550002)
② Public Security Detachment, Hami Public Security Bureau (Xinjiang Hami, 839000)
关键词:
混装乳化炸药; 剪切参数; 稳定性; 爆炸性能; 参数优化
Keywords:
mixed emulsion explosive;  shear parameter;  stability;  explosive performance;  parameter optimization
分类号:
TQ560.9
DOI:
10.3969/j.issn.1001-8352.2024.03.002
文献标志码:
A
摘要:
为研究剪切参数对混装乳化炸药稳定性及爆炸性能的影响规律，以新疆某露天煤矿混装乳化炸药地面站为工程背景，通过自然储存、运输颠簸振动、爆炸性能测试等方法，优化了该地面站混装乳化炸药的乳化工艺及剪切参数。结果表明:一定范围内，乳胶基质的抗颠簸振动及自然储存稳定性与剪切强度正相关;采用涡轮式叶片制备的乳胶基质稳定性最好，推进式叶片次之，桨式叶片最差;随着搅拌桨叶片长度的增加和叶片层数的增多，乳胶基质的析晶率呈递减趋势，稳定性升高。现场爆破试验结果表明，使用优化后的乳化工艺及剪切参数制备的混装乳化炸药的爆速达到4 200 m/s左右，经历1 000 km的长途运输后仍可稳定起爆，爆堆块度和大块率明显降低，爆破效果得到明显改善。
Abstract:
In order to study the influence of shear parameters on stability and explosive performance of mixed emulsion explosives, mixed emulsion explosives produced in a ground station in an open-pit coal mine in Xinjiang was studied. Emulsification process and shear parameters of mixed emulsion explosives were optimized by the methods such as natural storage, transportation vibration, and explosive performance testing. The results indicate that, within a certain range, the anti-vibration and natural storage stability of emulsion matrix are positively correlated with shear strength. The emulsion matrix prepared with turbine blades has the best stability, followed by the emulsion matrix prepared with propulsion blades and propeller blades. As the length of the stirring blade or the number of blade layers increases, crystallization rate of the emulsion matrix shows a decreasing trend, and the stability is higher. The on-site blasting test results show that, using optimized emulsification technology and shear parameters, the mixed emulsion explosive has a detonation speed of about 4 200 m/s. After a long-distance transportation of 1 000 km, it can still detonate stably. And the rock fragmentation and block rate significantly decrease after explosion, resulting in a significant improvement in the blasting outcomes.

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备注/Memo

备注/Memo:
收稿日期：2023-11-10
第一作者：吴勇（1984—），男，初级工程师，主要从事爆破工程技术研究。E-mail:56616796@qq.com
通信作者：周建敏（1990—），男，博士，正高级工程师，主要从事爆破工程技术研究。E-mail:377413454@qq.com
更新日期/Last Update: 2024-06-03