BOREHOLE CHARGE DISPERSION DEVICE Russian patent published in 2021 - IPC F42D1/08 F42D1/18 

FIELD: mining.

SUBSTANCE: invention relates to mining, to the field of drilling and blasting operations in rocks and can be used in various industries that use blasting operations in rock massifs, in particular in the development of minerals by an open method. The device for dispersing the charge in the well includes a support structure that is larger than the diameter of the wellhead and a suspended part placed on it on a flexible connection, made of a rubber-containing material, which, in a deformed and connected form, is placed in a bag, the transverse size of which is larger than the diameter of the well. The rubber-containing material is transversely deformed, forming a volume, inside which the compressed elastic material is placed, and is connected by an elastic flexible connection through holes symmetrically located in the center of the side edges, using a strong rod-shaped element with a flexible connection attached to it. The free end of the tie extends outwardly through the upper edge of the bag of elastic material, while the width of the suspended part is from 0.6 to 0.7 of the borehole diameter.

EFFECT: creation of a device suitable for dispersing a charge in a borehole of any type, ensuring complete overlap of the borehole cross-section, as well as a decrease in the specific consumption of explosives while maintaining the quality of rock crushing.

1 cl, 2 dwg