AUTOMATIC THERMOBALANCE UNIT FOR MEASURING THE KINETICS OF DRYING IRON ORE PELLETS IN A HEAT-CARRIER GAS FLOW Russian patent published in 2023 - IPC F26B20/00 F26B25/22 F26B21/12 

FIELD: drying equipment.

SUBSTANCE: invention relates to devices for drying solid materials or objects at rest in stationary chambers and is aimed at improving the accuracy of controlling the mass of iron ore pellets when drying in a heat-carrier gas flow. An automatic thermobalance plant for measuring the kinetics of drying iron ore pellets in a heat-carrier gas flow comprises a drying agent generator, a thermometer, a heat-carrier circuit with a suction pipe on which a suction pipe control valve is installed, a drying chamber, flow meters, a high-pressure fan, scales with a platform for weights, equipped with upper and lower measuring cells, rigidly connected to each other by a ceramic rod and made identically in the form of collapsible cylinders with perforated bases, and a swinging rocker. The drying agent generator is made in the form of a burner device with a regulator of its operating modes, the thermometer is made in the form of an electronic thermometer with a thermocouple installed inside the burner device, the heat carrier circuit is made in the form of a gas path containing the initial section, the upper section, the lower section, the flow meters are made in the form two orifice plates, the outlets of the upper and lower sections of the gas path are connected by a suction pipe, after which a control valve of the suction pipe and a high-pressure fan are installed in series, the upper and lower measuring cells are located inside the drying chamber and are adapted for reciprocating movement in its volume, the ceramic rod is movably connected to one shoulder of the rocking arm, the second shoulder of which is movably connected to the scales made in the form of automatic electronic scales.

EFFECT: increasing the accuracy of controlling the mass of iron ore pellets when drying in a heat-carrier gas flow.

1 cl, 1 dwg