Chapovalov V. Working out the means and ways of the dry alleyed dust removal inside the mining enterprises

ДAbove-mentioned work is devoted to the problems of worked-out means and methods of the dry re-moval of allayed dust. The work is based on the investigated processes of dust allayment its, removal and transportation to the processing shops of the mining enterprises. The air conditions in the processing shops is analyzed in the thesis, the intensity of allayed dust on various sufraces is investigated too. A special method of hydraulic calculations for pipe-lines transporting double-phase streams was worked out, the method is effective for processes of removing and transporting allayed dust. Being based on the mentioned method, the estimation of mobile autonomous dust-removing installation (MADI) and its general design was worked out. Calculated dependence for choosing con-structed parameters of nozzles have been received, new designed nozzles for removing loose and com-pressed layers of allayed dust have been worked out. A new installation, spiral accelerator, with decreasing step was suggested, a cyclone of type CN was maunted into the known design. Such cyclone allows to increase effective dust removing for 4-6 %. Above-mentioned construction (MADI) permits to remove till 0,6 t if allayed dust, dust content in the processing shops decreases for 4,5 - 2,5 mg/m3.