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How to choice Wet Shotcrete Machine

Published:2011-07-08 Views:

The key technology for thin flow kind of wet shotcrete machine is as follows:
 The antisticking technology of the feeding structure
 The even thin flow conveying technology of injection pipe
 Accurately measure and even mix technology of liquid accelerator

People always take into account for price factor when choosing wet shotcrete machine, but depreciation charge and fittings consume only occupy three to six percent of shotcrete

cost actually and dominant factor controlling cost is materials expenses, labor cost and power. So we should pay especial attention to price performance ratio but not price. The key factor deciding price performance ratio is as follows:

  Service life, reliability and durative serviceability of wet shotcrete machine
 complex work efficiency of spraying: productivity, operating rate and rebound degree
 Controlling and consumption of accelerator: quality of feed influent, measuring accuracy and hybrid mode
 The quality of spraying layer: average strength, coefficient of variation, compactness and surfacing evenness
 Working environment: dust volume
 Operating performance of nozzle: jet velocity, impulse(recoil), complex controllability for rebound, nozzle dropping slurry and spraying layer dropping clump.

How to control total shotcrete?
 Controlling rebound, nozzle dropping slurry and spraying layer dropping clump
 Controlling overexcavate and improving level of smooth blasting
 Controlling thickness of spraying layer accurately
 Improving quality of hanging steel wire mesh for mesh shotcrete (undulating along with rock surface)
 Optimizing design, improving the grade of shotcrete and reducing thickness of spraying layer

 

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