SYSTEM OF DETERMINING THE CONTENT OF COMBUSTIBLES IN FLY ASH Russian patent published in 1994 - IPC

FIELD: thermal engineering. SUBSTANCE: the system employs intake arrangement with slotted inlet hole defined by plates. Isokinetic properties of solid particles are determined by using an injection effect in nozzle. Narrow part of the nozzle communicates with intake arrangement through hole. Particles tend to accumulate in a valve seat within calculated period of time. Then a control pulse from generator is conveyed through transducer to coil, which acts to force measuring tube to seat. Particles fall into measuring tube where underfiring is measured by carbon sensor. The mass of particles under the bottom of tube is also measured. Particles are evacuated to gas conduit through pipe thanks to pressure differential. EFFECT: enhanced accuracy of measurements. 7 dwg