Dynamic seal for preheated continuous supply system for scrap metal melting furnace includes seal cap engaging over conveyor channel with suction power regulator controlling pressure difference between cap and smoke suction tube

摘要

A conveyor channel (2) for the metal (7) is fitted with a smoke suction tube (6) and a seal cap (9) in dynamic engagement with the channel. The cap includes a suction power regulator consisting of a rotary fan (19) and a choke valve (20) which adjusts the cross-section of the air exit passage of the cap to maintain the static pressure difference between the suction tube and cap below 20 Pa.