DEVICE FOR CHARGING RISING WELLS AND METHOD OF CHARGING Russian patent published in 2019 - IPC F42D1/08 F42D1/10 

FIELD: mining.

SUBSTANCE: invention relates to the field of mining and construction, in particular to methods for charging of rising wells with water-containing explosive substance (WcES), and can be used in drilling and blasting operations (BO) in underground conditions. Charging device includes charging hose with charger attached to it, elastic collar. Charging device is made in form of charging nozzle with retaining element attached to it. Charging head includes a body connected on one side with a support plate, on the other side with a spider equipped with guide wheels and adjustable dynamic stops, on the support plate there is an elastic collar with radial slots along its edge and a clamping element, the clamping element is connected to the support plate, and from above on the charging nozzle there is a retaining element made flexible from polymer material and equipped with two process holes with the edge and in the center, wherein its diameter is greater than well diameter. During well charging to the well, charging device with intermediate detonator connected to initiation means is introduced into the well by means of charging hose. WcES or its components are supplied with simultaneous movement of charging hose, and WcES is held. Prior to direct application of charging device simulation of process of experimental well charging is performed with selection of position of dynamic stops of charging device, which provides for expansion in direction perpendicular to well axis, in a drilled upward experimental well of known length, a charging hose with a charging accessory is introduced, and by adjusting the dynamic stops, a dense, but uniform movement of the charging device is achieved in the experimental well, WcES or its components are supplied and charged, loading density is determined and, if necessary, repeated adjustment by dynamic thrusts.

EFFECT: invention makes it possible to ensure uniformity of formation of charge column with specified density of charging, to increase quality of charging of ascending well.

3 cl, 7 dwg