Reducing dust pollution in the production of mass explosions in quarries
Abstract
A method was developed to improve the efficiency of dust suppression and increasing of efficiency of energy of explosives in bulk blasting at quarries by using at the top of the borehole sealed shell filled soapstock (waste oil and fat plant) and water in the ratio 50:50. The intensification of the process of deposition of dust over the site of the explosion allows to reduce pollution the quarry site, which has a positive effect on the ecological situation in the region production and mining operations. It is established that with the passage of explosive gases through the shell with soapstock and water in the upper part of the borehole convective heat transfer from the gas shell and the loss of a fraction, the partial pressure on the borehole wall at the location of the shell. Due to the heat loss of the dust and gas cloud loses some of its energy, which leads to a decrease in the height of its ascent and, thus, prevents the removal of it beyond the open pit area.