Lanse to fluidize dully with moving material

摘要

The shaft of the lance comprises a conduit tube (10) with a pulsator for supplying pulses of pressurized air to one end of the conduit tube connected to or mounted in the tube. A space (18) which is defined at least partly by a clamped or attached air permeable diaphragm (16) is arranged at said end in communication with the conduit tube.