Systems, methods, blasting machines and wireless bridge units are presented for wireless blasting for safe firing of detonators under control of a remote wireless master controller in which the blasting machine is connected by cabling to the wireless bridge unit and power to a firing circuit of the blasting machine is remotely controlled via the bridge unit. The bridge unit selectively provides first and second firing messages to the blasting machine contingent upon acknowledgment of safe receipt of the first firing message by the blasting machine, and the blasting machine fires the connected detonators only if the first and second firing messages are correctly received from the bridge unit. A wireless slave blasting machine is disclosed, including a wireless transceiver for communicating with a remote wireless master controller, which fires the connected detonators only if first and second firing messages are wirelessly received from the master controller.

Systems, methods, blasting machines and wireless bridge units are presented for wireless blasting for safe firing of detonators under control of a remote wireless master controller in which the blasting machine is connected by cabling to the wireless bridge unit and power to a firing circuit of the blasting machine is remotely controlled via the bridge unit. The bridge unit selectively provides first and second firing messages to the blasting machine contingent upon acknowledgment of safe receipt of the first firing message by the blasting machine, and the blasting machine fires the connected detonators only if the first and second firing messages are correctly received from the bridge unit. A wireless slave blasting machine is disclosed, including a wireless transceiver for communicating with a remote wireless master controller, which fires the connected detonators only if first and second firing messages are wirelessly received from the master controller.

Methods of delivering inhibited emulsions are provided. The methods can include mixing an emulsion with a separate inhibitor solution to form the inhibited emulsion. Inhibitor solutions including water, an inhibitor, and a crystallization point modified are provided. Systems for delivering inhibited emulsions are also provided.

Methods of delivering inhibited emulsions are provided. The methods can include mixing an emulsion with a separate inhibitor solution to form the inhibited emulsion. Inhibitor solutions including water, an inhibitor, and a crystallization point modified are provided. Systems for delivering inhibited emulsions are also provided.

A blasting system including a plurality of detonators located in respective boreholes, which is implemented through the use of a remotely controlled vehicle used for survey purposes and for locating geographical positions of the boreholes.

A blasting system including a plurality of detonators located in respective boreholes, which is implemented through the use of a remotely controlled vehicle used for survey purposes and for locating geographical positions of the boreholes.

Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.

Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.

The invention relates to the field of blasting operations. The mechanical stemming device has the following elements. A sleeve having expandable structures and, positioned in a cavity thereof, an element that has wedge-type surfaces. Conductors are arranged in the elements of the stemming plug in functional channels. The sleeve has an end surface that faces the mouth of the hole and that forms a thrust surface to allow action on this surface as the expandable structures are wedged into place. The element is equipped with a structural and functional stopping and gauging tool that has reference elements. The invention allows a stemming device to be secured at a set distance from the mouth of a hole while completely avoiding it coming into contact with the explosive.

The invention relates to the field of blasting operations. The mechanical stemming device has the following elements. A sleeve having expandable structures and, positioned in a cavity thereof, an element that has wedge-type surfaces. Conductors are arranged in the elements of the stemming plug in functional channels. The sleeve has an end surface that faces the mouth of the hole and that forms a thrust surface to allow action on this surface as the expandable structures are wedged into place. The element is equipped with a structural and functional stopping and gauging tool that has reference elements. The invention allows a stemming device to be secured at a set distance from the mouth of a hole while completely avoiding it coming into contact with the explosive.