Underground tank truck with compressed-air emptying

摘要

The liquids required underground can be advantageously taken underground in a protected frame and kept in intermediate storage there by an underground tank truck being used, the tank vessel of which is approved for an operating pressure of 5 bar and which, apart from the tank indicator and the filling nozzle, consists of an extraction device of riser pipe with extraction nozzle and a compressed-air connection nozzle. Since a widely extended compressed-air network is available underground, the tank vessel can be emptied quickly and safely even when the material or liquid is temperature-sensitive. Complete emptying of the tank vessel and thus a tank vessel which is always empty and is then refilled at the surface is thus available. Furthermore, accurate monitoring of the quantities extracted is possible. Corresponding positive control ensures that the tank vessel is always transported in the pressure-relieved state. <IMAGE>