DEVICE FOR INERTISATION BOTTOMHOLE SPACE Russian patent published in 2019 - IPC E21F5/14 F42D3/04 

FIELD: machine building.

SUBSTANCE: invention relates to device for inertisation of bottomhole space. Device contains a container with an inerting agent and a charge spraying the inerting agent. Container can be filled with inerting agent in loose or liquid form, which can be placed in elastic shell. In the center of the bottom of the container body there is a hole in the form of a stepped cylinder, and in the center of the cover of the container there is a hole in the form of a cylinder with a longitudinal slot for placement of wires of a safety electric detonator (ED), holes in center of housing bottom and container cover center together with tube made of paper form through channel for arrangement of bundle of shock-wave tubes of non-electric initiation system, spraying charge is a piece of detonating cord with safety ED, wound on plastic frame, made in form of hollow thin-walled cylinder with internal longitudinal ribs in amount of not less than three pieces located outside of tube, protective ED wires are led out through a slot in the cylindrical opening of the container cover.

EFFECT: simple design, high reliability of operation, high manufacturability, high safety.

1 cl, 1 dwg