Method and apparatus for the mechanical regeneration of foundry sand

摘要

In a method for the mechanical regeneration of foundry sand using an airstream, the amount of fine material separated from the exhaust air per unit of time is compared with a preset value and a signal is generated therefrom which is passed to at least one control element (28, 32) of a regeneration device (12). The regeneration device (12) has, in the fine-material discharge (17) of a separating member (16), a dust meter (22) which is connected to a transducer (24) which is assigned to a comparison logic and connected by means of a signal line (25, 26 and 25, 30 respectively) to the controller/controllers (28 and 32 respectively). <IMAGE>