Results 1 to 10 of about 3,467 (257)

Rock Breaking Performance of TBM Disc Cutter Assisted by High-Pressure Water Jet

open access: yesApplied Sciences, 2020
A high-pressure water jet can break rock efficiently, which is of great potential to overcome the problems of a tunnel boring machine (TBM) in full-face hard rock tunnel digging, such as low digging efficiency and high disc cutter wear rate.
Fengchao Wang   +4 more
doaj   +4 more sources

High-pressure water jet injury to the chest

open access: yesTrauma Case Reports, 2023
The high-pressure water jet cutting method, which uses a high-pressure water stream to cut hard materials, is widely used because it does not generate sparks or dust.
Koji Miura
doaj   +3 more sources

Research on the Increase of Mineral Dissociation Degree by High Pressure Water Jet [PDF]

open access: yesE3S Web of Conferences, 2021
The traditional grinding technology of ball mill has many problems, such as high energy consumption, unable to maintain the original crystal shape, and it is difficult to obtain high quality and high purity ultrafine powder.
Cai Mingming   +8 more
doaj   +2 more sources

Research progress and prospect of high pressure water jet coal breaking mechanism

open access: yesMeikuang Anquan, 2022
The research on coal breaking mechanism by high-pressure water jet can provide theoretical basis for water jet equipment manufacturing and construction technology research.
ZHAO Yueran   +5 more
doaj   +2 more sources

Identifying the processes and characterizing the pressure zone of water jet impacting on solid surface

open access: yesAdvances in Mechanical Engineering, 2022
The difficulty in understanding the flow characteristics of water jets impacting on solid surfaces made the water jet technology requiring further investigations. The Arbitrary Lagrange-Euler (ALE) method is used to develop a numerical model of the water
Jianguo Zhang   +3 more
doaj   +1 more source

Experimental study of shock pressure and erosion characteristics of high‐pressure gas–liquid two‐phase jet: Exploration for improving coalbed methane extraction efficiency

open access: yesEnergy Science & Engineering, 2023
Coalbed methane extraction promotes energy exploitation and alleviates the greenhouse effect. This study aimed to analyze the technical potential of a high‐pressure gas–liquid two‐phase jet in increasing coalbed permeability and promoting coalbed methane
Longyong Shu   +4 more
doaj   +1 more source

Experimental study on optimization of process parameters of ultra-high pressure abrasive water jet

open access: yesMeikuang Anquan, 2023
In order to improve the cutting efficiency of abrasive water jet, the cutting effect of limestone with different process parameters was studied through the developed ultra-high pressure abrasive water jet cutting system.
ZHANG Lulu, LI Luyuan, ZHANG Runxu
doaj   +1 more source

Exploration on Application of High Pressure Water Jet Cleaning Technology [PDF]

open access: yesMATEC Web of Conferences, 2021
at present, the three-dimensional cleaning machine involved in tank car cleaning technology in China has full-automatic function, which includes two main structures: three-dimensional positioning machine and high-pressure cleaning machine.
Xu Xinjian, Meng Zhaoxing, Lv Haiqiang
doaj   +1 more source

Comminution of Polymetallic Nodules with a High-Pressure Water Jet

open access: yesMaterials, 2022
This paper presents an original method for the comminution of polymetallic nodules in a hydro-jet mill of our own design, having the water jet pressure in the range of 70–200 MPa. The best comminution results are ensured by equipping the mill with a water jet having a diameter dw = 0.7 mm and a comminution-homogenization tube having a diameter dh = 2.4
Przemysław J. Borkowski   +3 more
openaire   +2 more sources

Management of high pressure water jet oropharyngeal injury

open access: yesOtolaryngology Case Reports, 2018
High-pressure water jets are used widely across various industries, and work-related injuries to the extremities commonly occur. However, high-pressure water injuries to the oropharynx are uncommon and can result in significant injury and aerodigestive ...
Justin C. Morse   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy