High stability reverse circulation drilling machine

Reverse circulation drilling rig is a kind of drilling rig that uses reverse circulation drilling method to extract drilling fluid and cuttings from the hole. This type of drilling is commonly used for mineral exploration and water well drilling.

The machine consists of a drill bit attached to the bottom of the drill string, which is attached to the drill pipe. The drill pipe is attached to the rotary joint to enable the drill string to rotate. The swivel is connected to a high-pressure air compressor that supplies compressed air to the drill string.

During drilling, compressed air is pumped into the drill string and discharged through a nozzle in the bit. This creates a jet of air that carries drilling fluid and cuttings up the annulus between the drill string and the wall of the hole. The drilling fluid and cuttings are then collected into a reverse circulation system that separates the drilling fluid from the cuttings.

A reverse circulation system typically consists of a cyclone separator, which separates drilling fluid from cuttings, and a collection tank, which collects drilling fluid for reuse. The cuttings are discharged from the cyclone separator and can be further treated or treated.