The Use of High-Pressure Water Assistance in the Rock Mining Process Using Cutting Tools

2020 ◽  
pp. 115-125
Author(s):  
Krzysztof Kotwica
Keyword(s):  
High Pressure ◽  
Cutting Tools ◽  
Rock Mining ◽  
Pressure Water

scholarly journals Hard Rock Mining Using Disk Tools Supported by High-Pressure Water Jets in the Aspect of Reducing Energy Consumption

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2595
Author(s):  
Krzysztof Kotwica
Keyword(s):  
High Pressure ◽  
Cutting Tools ◽  
Similarity Criteria ◽  
Dust Generation ◽  
Water Jets ◽  
Mechanical Methods ◽  
Rock Mining ◽  
Pressure Water ◽  
Working Parameters ◽  
The Impact

The mining of hard rocks by mechanical methods, using cutting tools, is associated with problems such as sparking, dust generation and increased wear. The application of disk tools allows limiting these problems but requires constructing a machine with large dimensions and weight. To limit these problems, high-pressure water jets can be applied. The article presents the effects of using this solution in the field and stand tests when mining rocks with a symmetrical disk. The results of the bench tests of high-pressure water jets to support the process of mining with symmetrical disks, carried out at the AGH University of Science and Technology, performed on a unique test stand, which enabled the samples to be mined in a circular trajectory in conditions similar to real ones, are presented. With the use of a dimensional analysis, a theoretical-empirical model was developed to estimate the impact of slots cut by water jets on the tool load and the amount of output as a function of slots spacing and depth. Considering the similarity criteria for the mined rock sample (mechanical properties), it is possible, with the use of this model, to estimate the most advantageous working parameters while hydromechanical mining uses disks on a larger cutting radius.

The mechanism and application of high-pressure water jet technology to prevent compound dynamic disaster

2021 ◽  
Vol 14 (13) ◽  
Author(s):  
Zeng-qiang Yang ◽  
Chang Liu ◽  
Feng-shuo Li ◽  
Lin-ming Dou ◽  
Gang-wei Li ◽  
...  
Keyword(s):  
High Pressure ◽  
Water Jet ◽  
Pressure Water ◽  
Dynamic Disaster ◽  
High Pressure Water Jet

scholarly journals Production and Electrode Properties of Silver Powders by High-Pressure Water Atomization under Nitrogen Atmosphere

2017 ◽  
Vol 64 (12) ◽  
pp. 673-676 ◽  
Author(s):  
Takashi OGIHARA ◽  
Yasuhiro TSUBOTA ◽  
Nobuyoshi AOYAGI ◽  
Kenji OHSHITA ◽  
Toshihiko KUBO ◽  
...  
Keyword(s):  
High Pressure ◽  
Nitrogen Atmosphere ◽  
Water Atomization ◽  
Pressure Water

scholarly journals Sintering and Electrical Properties of Silver Powders Prepared by High-Pressure Water Atomization

2016 ◽  
Vol 63 (13) ◽  
pp. 1027-1031 ◽  
Author(s):  
Takashi OGIHARA ◽  
Toshihiko KUBO ◽  
Kenji MINAMI ◽  
Hirokazu YASUDA ◽  
Yasuaki SATO ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Properties ◽  
Water Atomization ◽  
Pressure Water

Etching of diamond octahedrons by high pressure water

1977 ◽  
Vol 38 (1) ◽  
pp. 1-7 ◽  
Author(s):  
H. Kanda ◽  
S. Yamaoka ◽  
N. Setaka ◽  
H. Komatsu
Keyword(s):  
High Pressure ◽  
Pressure Water
Sign in / Sign up

Export Citation Format

Share Document