LAPSE:2023.36881
Published Article
LAPSE:2023.36881
Rock-Breaking Characteristics of High-Pressure, Dual-Stranded Water Jets
November 30, 2023
Because of the unclear understanding of the characteristics associated with coupled rock breaking using multiple water jets, a numerical model combining smoothed particle hydrodynamics (SPH) and the finite element method (FEM) was established to investigate the rock-breaking capacity of a high-pressure, double-stranded water jet structure. The effectiveness of this model was verified through field experiments. The study further examined the specific energy required for rock breaking using the high-pressure double water jets and analyzed the effects of jet pressure, nozzle diameter, jet impact angle, and impact point spacing on rock-breaking volume. The results demonstrate that the rock-breaking ability of a high-pressure double water jets is better than that of a single water jet. When the impact angle of the high-pressure double water jets was 15° and the distance between impact points was 2.0 d, the rock damage effect was the best. By comparing the specific energies for rock breaking of a single water jet and a double water jet, it was concluded that the best rock-breaking nozzle diameter is 1.6 mm. Furthermore, an orthogonal testing approach was employed to determine the main and secondary factors influencing the rock-breaking energy of the high-pressure double water jet. The order of significance was found to be jet pressure > impact angle > impact point spacing > nozzle diameter. These findings provide valuable guidance and reference for application in the coal mining industry.
Record ID
Keywords
high-pressure double water jet, jet flow angle, optimal parameters, specific energy for rock breaking
Subject
Suggested Citation
Pan Y, Zhai S, Pei K, Yuan H, Huo F. Rock-Breaking Characteristics of High-Pressure, Dual-Stranded Water Jets. (2023). LAPSE:2023.36881
Author Affiliations
Pan Y: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Zhai S: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Pei K: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Yuan H: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Huo F: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Zhai S: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Pei K: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Yuan H: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Huo F: School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China
Journal Name
Processes
Volume
11
Issue
9
First Page
2562
Year
2023
Publication Date
2023-08-27
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr11092562, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.36881
This Record
External Link
doi:10.3390/pr11092562
Publisher Version
Download
Meta
Record Statistics
Record Views
63
Version History
[v1] (Original Submission)
Nov 30, 2023
Verified by curator on
Nov 30, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.36881
Original Submitter
Calvin Tsay
Links to Related Works