Starting-valve throttle device for delivering a melt from a screw extruder, and system for preparing bulk material having a starting-valve throttle device of this type, and method for delivering a melt from a screw extruder by means of a starting-valve throttle device of this type

A starting-valve throttle device for delivering a melt from a screw extruder, having

• a housing and a housing recess configured therein;
• an entry duct for feeding the melt, said entry duct being configured in the housing and opening into the housing recess;
• a delivery duct for delivering the melt, said delivery duct being configured in the housing and opening into the housing recess;
• an evacuation opening for evacuating the melt during a starting procedure of the screw extruder;
• and
• a switching member
• which is disposed in the housing recess and is repositionable between an evacuation position and a delivery position;
• which in the evacuation position at least in portions configures an evacuation duct for connecting the entry duct to the evacuation opening;
• which in the delivery position configures a passage duct for connecting the entry duct and the delivery duct,
• wherein a throttle member is disposed in the passage duct so as to be repositionable relative to the switching member.