FIELD: mining engineering.
SUBSTANCE: method consists in ventilation of openpit with convective heat-trasfer flows generated by a heater placed on the surface of the openpit. At the same time, convective flows are formed by a pulsed flow of heat-trasfer at a speed of 100 to 300 m/s and periodicity of 1 to 5 seconds. Convective heat-trasfer flows are formed alternately, first by means of conical nozzle of heat-trasfer, which provides the opening of convective flow by 1-2 degrees, then by means of a conical nozzle, which ensures the opening of convective flow by 3-5 degrees. Heat-trasfer in calm period is water vapour, and under atmospheric inversions is hot air.
EFFECT: improving air exchange of openpit space with environment.
3 cl, 2 dwg
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|
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RU2734532C1 |
