FIELD: mining industry. SUBSTANCE: device consists of heat-insulating body whose side walls are narrowing toward body base, and end walls are made with coaxial branch pipes at body base. Body accommodates piston and cover to which handle is secured by springs. Side plates of handle have cutouts for its locking on body. In this case, shutoff tube is located in branch pipes. EFFECT: provided prolonged storage of wet snow and rapid filling of shutoff tube with wet snow. 3 dwg
