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Due to the use of a closed circulation system, the air reverse circulation drilling rig can better control the flow of underground gas, allowing for more efficient drilling to the required depth during the drilling process.
The air reverse circulation drilling rig uses compressed air as the circulating medium, unlike mud drilling rigs that require a large amount of water and chemicals, avoiding environmental pollution. It is also suitable for drilling in water scarce areas and consumes relatively less energy, making it more energy-efficient.
The rock debris dust samples obtained through air reverse circulation drilling are not contaminated, the samples are easy to classify and track, have precise location and depth, and can accurately locate mineralization locations.
The lifting of the drilling rig frame, unloading of drill rods, rotation and feeding, support legs, hoisting, walking and other actions are all implemented by the hydraulic system, greatly reducing labor intensity, improving construction efficiency and engineering quality.
The structure of the air reverse circulation drilling rig is relatively simple, and the maintenance cost is low. For some drilling projects that require a large amount of work, the use cost of the air reverse circulation drilling rig is lower.
This technology is suitable for various geological conditions and is suitable for complex environments such as thin air, thick permafrost, and abundant groundwater in high-altitude areas. In addition, air reverse circulation drilling technology has been widely used in fields such as mining exploration, oil and gas extraction, and coal mining.
| ARC-500 Reverse circulation drilling rig | ||
|---|---|---|
| Parameter Class | Model | ARC-500 |
| Weight | 9500KG | |
| Tractor Parameter | Transport dimension | 6750×2200×2650mm |
| Chassis | Engineering steel tracked hydraulic walking chassis | |
| Track length | 2500mm | |
| Track width | 1800mm | |
| Hydraulic high leg | 4 | |
| Engine power | Cummins Country Two six cylinder diesel | |
| Power | 132 KW | |
| Technical Specification | Applicable rock strength | F=6~20 |
| Drill rod diameter | φ102/φ114 | |
| Drilling diameter | 130-350mm | |
| Drill rod length | 1.5/2/3m | |
| Drilling depth | 500m | |
| Single advance length | 4m | |
| Footage efficiency | 15-35m/h | |
| Rotary torque | 8500-12000 N.m | |
| Rig lift | 22 T | |
| Hoist lifting force | 2 T | |
| Angle of climb | 30° | |
| Traveling speed | 2.5 km/h | |
The ARC-500 features a maximum drilling depth capacity of 500 meters, with a versatile drilling diameter range from 130mm up to 350mm.
It is equipped with a Cummins Country Two six-cylinder diesel engine generating 132 KW of power, integrated onto a high-durability engineering steel tracked hydraulic walking chassis.
Air reverse circulation drilling uses compressed air as the circulating medium instead of mud. This method eliminates the need for large volumes of water and chemicals, avoiding soil and groundwater contamination, and is highly energy-efficient in water-scarce areas.
Because it employs an air reverse circulation system, the rock debris and dust samples are conveyed directly and remain uncontaminated. This allows for precise depth tracking, effortless sample classification, and accurate location of mineralization points.
The ARC-500 is fully hydraulic; key actions including the lifting of the drilling rig frame, unloading of drill rods, rotation, feeding, supporting legs, hoisting, and walking are all driven by the hydraulic system to maximize construction efficiency and minimize manual labor.
The rig is designed for wide applicability, meaning it can operate efficiently in challenging environments such as thin air at high altitudes, thick permafrost, and abundant groundwater, making it ideal for mining exploration, oil and gas extraction, and coal mining.
