METHOD OF AERODYNAMIC SUPPRESSION OF NONORGANIZED DUST CONTAMINATED EFFLUENTS AND DEVICE FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: cleaning of gas flows from dust. SUBSTANCE: aerodynamic suppression and collection of nonorganized effluents of dispersed impurities in zones of operation of screens, elevators, drying and crushing devices, discharging chutes, pouring of dust-forming substances, their transportation by conveyors are realized by provision of cover of nonorganized effluents of dust by thin-walled shields, and direction of flow taken from such zones by air intakes through gas ducts at elevated temperature in the order of 500 C to aerodynamic dust collecting apparatuses. Intake of zone dust effluents is carried out without formation of mutually competitive exhaust flows, and installed at ends of discharging chutes are flexible dust-suppressing gates. In this case, low pressure in dust conduits is built up with respect to ambient pressure and flexible dust-suppressing valves are installed to prevent formation of hydraulic hammers and dust formation. EFFECT: higher efficiency. 6 cl, 10 dwg