LOW-PRESSURE UNLOADING UNIT OF THE PNEUMATIC LOADING APPARATUS Russian patent published in 2021 - IPC F42D1/10 B65G53/00 

FIELD: mining equipment.

SUBSTANCE: invention relates to a pneumatic equipment for loading short holes and boreholes with granular explosives and can be used in the design of mobile, portable and knapsack pneumatic chargers. The unloading unit includes rows of nozzles located in the bottom of the tank, inlet and outlet pipes, while the bottom of the tank is provided with a false bottom that passes into an overturned trough with a purge channel formed by a partition with a longitudinal row of nozzles and a cylindrical part of the overturned trough, and on one side the overturned trough is adjacent to the outlet pipe, and on the other side is blocked by a tank wall with a purge pipe.

EFFECT: reduction of the maximum pressure of compressed air in the tank, reduction of the weight of the air loader, increase in its capacity and convenience during operation.

1 cl, 2 dwg