Diesel fuel consumption is the most important cost of operating a DTH drilling rig and is one cost that can be effectively controlled through management.
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Use the existing DTH drilling rig and control the percentage of non-perforating time reduction. Non-perforating time includes rig displacement, rig changeover. The fuel-saving strategy includes rationalizing the rigged path within the gun area. Avoid repeated round trips. Turn off the air compressor engine during long-distance displacement. Prepare the next rod in advance when one rod is almost finished, etc.
If you buy a new DTH drilling rig, remember to get one with low fuel consumption per meter. Note: Low fuel consumption per meter! Not low fuel consumption per hour!
Single meter fuel consumption = meters per hour perforated / fuel consumption per hour
When the engine power is certain, the fuel consumption per hour is fixed, so the higher the perforation efficiency, the lower the single meter fuel consumption.
Parameters for judging perforating efficiency: flow and pressure of air compressor are proportional to perforating efficiency, rotary lifting torque speed of drilling rig is proportional to perforating efficiency.
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The better the manufacturer's R&D capability and the larger the manufacturing scale of the same size impactor. In general, the smaller the fuel consumption of the impactor, thus achieving the effect of energy-saving.
In daily work, always pay attention to the engine speed of the air compressor. The ideal engine speed is between idle and high speed, close to 20% on this side of idle speed. Too high engine speed will cause high fuel consumption. Excessive wear of the impactor is one of the reasons for high engine speed. In the case of payroll-based entirely on meters, there have been instances where drillers have increased the engine speed in order to increase the air pressure of the compressor. Replace outer cylinders and bushings of worn impactors in time. The impactor that does not have repair value should be replaced with a new impactor in time.
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Minnich A-3/A-6 machine-mounted drills maximize productivity and safety on patchwork jobs. Featuring up to six drills, these pneumatic units can be mounted to an excavator, backhoe or skid-steer loader to form a self-contained and highly mobile drilling solution for full-depth repair. Besides offering the maneuverability to get jobs done faster, A-3/A-6 drills provide a safer alternative for operators, eliminating fatigue by using the carrier to transport the drill. Available side-shift functionality enables operators to drill a second set of holes without having to reposition the carrier, while an optional dust collection system reduces debris on the job site.
Model A-3/A-6 Drill Steel Shank .875″ x 4.25″ (22.2mm x 107.9 mm) Drill Steel Length U.C. 24″ (61.0cm) Under Collar Drill Bit Diameter .625″ – 2.50″ (15.9mm to 63.5mm) *Maximum Drill Depth 18″ (45.7cm) Drill Distance From Top of Slab 3″ – 12″ (7.6cm – 30.5cm) Minimum Cutout Width 48″ (121.9cm) SCFM Required 92.2 (2.61 m&sub3;/min) PSIG Required 90 (0.62 MPa) Weight A-2 1250 LBS (567.0 kg) Weight A-3 1500 LBS (680.4 kg) Weight A-4 1750 LBS (793.8 kg) Weight A-5 2000 LBS (907.2 kg) Weight A-6 2125 LBS (963.9 kg)At McCann, our mission is 'Serving the Constructor' with the supplies, equipment, and support to get the job done. From our ten regional locations throughout northern Illinois, northern Indiana and western Michigan we represent more than 400 suppliers and manufacturers as well as provide parts, service, repair and rentals.
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