[1]安振伟,李宏兵,张小勇,等.基于DEM的多孔粒状铵油炸药现场混装车螺旋的输送稳定性研究[J].爆破器材,2025,54(03):42-47.[doi:10.3969/j.issn.1001-8352.2025.03.007]
　AN Zhenwei,LI Hongbing,ZHANG Xiaoyong,et al.Stability of Screw Conveying of On-Site Mixed Vehicles of ANFO Based on DEM[J].EXPLOSIVE MATERIALS,2025,54(03):42-47.[doi:10.3969/j.issn.1001-8352.2025.03.007]
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基于DEM的多孔粒状铵油炸药现场混装车螺旋的输送稳定性研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
54
期数:
2025年03
页码:
42-47
栏目:
爆炸材料
出版日期:
2025-06-04

文章信息/Info

Title:
Stability of Screw Conveying of On-Site Mixed Vehicles of ANFO Based on DEM
文章编号:
6011
作者:
安振伟; 李宏兵; 张小勇; 陈世雄
中国葛洲坝集团易普力股份有限公司（重庆，401121）
Author(s):
AN Zhenwei;  LI Hongbing;  ZHANG Xiaoyong;  CHEN Shixiong
China Gezhouba Group Explosive Co., Ltd. (Chongqing, 401121)
关键词:
混装车; 输送稳定; 离散元法（DEM）; 粒状铵油;  定量底螺旋
Keywords:
mixed loading vehicle;  conveying stability;  discrete element method (DEM);  granular ammonium oil;  quantitative bottom screw
分类号:
TQ560; TD235
DOI:
10.3969/j.issn.1001-8352.2025.03.007
文献标志码:
A
摘要:
为提高多孔粒状铵油炸药现场混装车的计量精度，采用离散元法（DEM），以定量底螺旋的输送质量流量稳定性变异系数Cv、螺旋单圈输送量Q0以及螺旋轴扭矩M为评价指标，对定量底螺旋的输送稳定性进行研究。结果表明，多孔粒状铵油炸药混装车采用变距底螺旋输送多孔粒状硝酸铵时，螺旋输送质量流量更稳定，输送质量流量的Cv最低可达到5.51%；在统计范围内，变距底螺旋的Q0范围为3.12~3.19 kg，Cv仅为1.00%，相较等距底螺旋受螺旋转速的影响较小；在相同转速条件下，变距底螺旋轴的平均扭矩比等距底螺旋要低，且在统计范围内Cv为4.29%，较等距底螺旋更稳定、更节能。对比的实际标定单圈输送量与仿真结果表明，该仿真方法可靠。
Abstract:
In order to improve the measurement accuracy of on-site mixed vehicle of ANFO, the discrete element method was used to study the conveying stability of the quantitative bottom screw conveyor, using the coefficient of variation (Cv) of the mass flow rate stability of the quantitative bottom screw, the single-turn conveying volume of the screw conveyor, and the screw conveyor shaft torque as evaluation indicators. The results show that the mixed vehicles of ANFO using variable-pitch bottom screw conveyor to convey porous granular ammonium nitrate have a more stable mass flow rate, and the lowest Cv of the mass flow rate stability reaches 5.51%. Within the statistical range, the single-turn conveying volume of the variable pitch screw conveyor ranges from 3.12 to 3.19 kg, with a Cv of only 1.00%, showing less influence from the screw conveyor rotation speed compared to a constant pitch screw conveyor. Under the same rotation speed conditions, the average torque of the variable pitch screw conveyor shaft is lower than that of the constant pitch screw conveyor, with a Cv of 4.29%, demonstrating greater stability and energy conservation. The comparison between the actual calibrated single-turn conveying volume and the simulation results shows that this simulation method is reliable.

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[1]黄铁飞,荣光富,杨曙光,等.乳化剂对混装乳化炸药质量性能的影响及实践应用[J].爆破器材,2010,39(02):14.
　HUANG Tiefei,RONG Guangfu,YANG Shuguang,et al.Effect of Emulsifier on the Quality Performance of Emulsion Explosive and Its Practical Application[J].EXPLOSIVE MATERIALS,2010,39(03):14.

备注/Memo

备注/Memo:
收稿日期：2025-01-22
第一作者：安振伟（1984—），男，硕士，高级工程师，主要从事民爆装备的研制。E-mail: jlujerry@163.com
通信作者：陈世雄（1989—），男，博士，高级工程师，主要从事民爆器材及军民融合技术的研究。E-mail: shixiong_chen@126.com
更新日期/Last Update: 2025-06-03