airblast

airblast

[′er‚blast]
(mining engineering)
A disturbance in underground workings accompanied by a strong rush of air.
References in periodicals archive ?
The second case is the mine that purchased the electronic detonators and, because they have the ability to be programmed to shoot very fast, are programmed to shoot very fast, This functions off outdated theories that shock breakage is a major breakage mechanism and that extremely fast shooting, row to row, will lead to better fragmentation or better throw, They then find that rocks are being violently thrown and might suffer increases in airblast and cast percentages have dropped, and instead of blaming the caps or the fast timing, the powder company blames "unique geology" as the major cause of poor blasts.
The recent acquisition of an European manufacturer of a proven Airblast defoliator system, the ERO engineers have developed a solution that allows the VITIpulse Airblast heads to be attached in the early stages of the season for initial leaf removal and canopy cleaning and then, as the season progresses, the Airblast heads are removed and the Roller heads installed with leaf removal without damage to canopy or fruit.
Tenders are invited for Acquisition Of, One (1) New all Wheel Drive - all Wheel Steer , Two Engine Design, High Speed Runway Broom With Airblast System
Determination of Overstress Distribution (due to AirBlast) in the Ground.
Wheelabrator: a world leader in surface preparation technology, offering a complete range of airblast, wheelblast and mass finishing solutions.
Swisdak Jr., Simplified Kingery Airblast Calculations, Naval Surface Warfare Center, Indian Head, Md, USA, 1994.
Singh, Ffect of Combustor Geometry on Performance of Airblast Atomizer Under Sub-Atmospheric Conditions, Engineering Applications of Computational Fluid Mechanics vol.
On April 8, 2014, two pesticide applicators were driving tractor-pulled airblast sprayers to apply a mixture of pesticides to prevent psylla infestations in a pear orchard.
Calculators include: ground vibration prediction, airblast prediction, powder factor, explosives per borehole, rock per borehole, scaled distance and borehole angle drift.
Another method is to expose the relatively slow moving liquid to a high velocity airstream as used in twin-fluid, air assist, or airblast atomizer.
An airblast sprayer [30] for pesticide application in olive trees (see Figure 5(c)) consists of two vertical booms with four nozzles each.
Ammonia LPR systems have now been successfully applied to continuous airblast freezing systems and to low-temperature cold stores with economized screw compressors where it had not previously been possible to take full advantage of the economizing.