Sulphur is extracted by drilling three concentric /round pipes of diameter of ratios 2:8:18 centimetres.

Superheated water at 170 degrees centigrade and 10 atmosphere pressure is forced through the outermost pipe.

The superheated water melts the sulphur because the melting point of sulphur is lower at about at about 115 degrees centigrade.

A compressed air at 15 atmospheres is forced /pumped through the innermost pipe.

The hot air forces the molten sulphur up the middle pipe where it is collected and solidifies in a large tank.