DEVICE FOR AUTOMATIC IN-LINE MEASUREMENT OF MASS LOSS BY CALCINATION AND THERMAL DECOMPOSITION OF SOLID PARTICLES

摘要

The particles are automatically extracted from a channel through which said particles are transported in a gaseous current. The inventive device can be used to determine the ash and volatile bodies in solid fuel and the unburned bodies in ashes. The particles are deposited on a crucible (10), permanently located inside an electric kiln (9) with temperature control. The device comprises a channel (16) which, after passing through the furnace (9), ends in a bell shape at the top of the crucible (10). The sample enters the furnace (9) by gravity through the channel (16) and is deposited on the crucible (10) where the sample is calcined. Said crucible (10) is supported by a rod (11) that passes through the bottom portion of the furnace and rests on an analytical balance (14). After calcination, the sample is sucked up through the vertical channel (16) to allow a new cycle to begin.