The core of matching core drill rigs with air compressors is to realize drilling slag removal and drill bit cooling by compressed air. Following the four-step process of model selection, connection and installation, operation and commissioning, and maintenance can greatly improve drilling efficiency and extend equipment service life.

For model selection, parameters should be determined based on drilling depth, hole diameter and formation characteristics. Small air compressors with a pressure of 0.5–1.0MPa and displacement of 1–3m³/min are suitable for shallow holes (＜50m). Mobile air compressors with a pressure of 1.0–2.5MPa and displacement of 3–8m³/min are preferred for deep holes (50–200m) or loose formations, avoiding slag discharge problems caused by insufficient pressure or equipment damage from excessive pressure.

Select matching high-pressure air hoses for pipeline connection. Add sealing gaskets and clamps at joints, and install pressure gauges and safety valves to prevent high-pressure air leakage and overload. During operation, start the air compressor first and wait for pressure to reach the set value before turning on the drill rig. Adjust displacement and pressure in real time according to slag discharge conditions.

After drilling, keep the air compressor running for 1–2 minutes to blow residual drill cuttings. Regularly clean the air filter, inspect hoses, drill bits and drill pipes. For loose and collapse-prone formations, mix compressed air with foaming agent. For water-rich formations, use compressed air to drain water and prevent bit clogging.