A method of vertically transporting emulsion explosive includes, using a pump, pumping a predetermined volume of emulsion explosive, from an emulsion explosive reservoir, into a vertically extending pipe, wherein pumping is effected airtightly at least between the pump and a downstream end of a volume of emulsion explosive that has been pumped into the vertically extending pipe for at least a part of the travel of emulsion explosive of the predetermined volume of emulsion explosive down the vertical pipe.
B65G 53/00 - Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
B65G 53/30 - Conveying materials in bulk through pipes or tubes by liquid pressure
E21B 43/263 - Methods for stimulating production by forming crevices or fractures using explosives
E21C 37/12 - Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
F04F 1/00 - Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
F04F 1/02 - Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped using both positively and negatively pressurised fluid medium, e.g. alternating
A method of explosives blasting includes the steps of pressure-tightly sealing gassed emulsion explosive inside an explosives blasting container and locating the sealed explosives blasting container at a blasting location.
An underwater blasting assembly for blasting under water using an emulsion explosive comprises two or more connected underwater blasting assembly elements, at least one of which is an emulsion explosive container that is hollow and contains emulsion explosive, wherein the blasting assembly and/or at least some of the blasting assembly elements respectively, has/have a specific gravity, relative to water, in a range of from about 0.90 to about 1.25.
A shock tube coiling device (10) includes a group of three shock tube coiling hubs (13A, 13B, 13C). The coiling hubs are mounted about an indexing axis (A), each being radially spaced from the indexing axis and angularly spaced from the other coiling hubs about the indexing axis. The coiling hubs of the group are displaceable in an operating direction along an endless indexing path about the indexing axis. Each coiling hub comprises at least one coil support member (15) about and onto which shock tube can be coiled about a coiling hub axis. Further included is a shock tube coiling member, rotatably mounted for rotation along a coiling path about a coiling axis and being capable of coiling, at a shock tube coiling position along the indexing path, shock tube about and onto the at least one coil support member of any one of the coiling hubs when located at the shock tube coiling position.
A detonator which includes, inside a tubular housing two containers which are -breakable thereby to release their contents which, when mixed, form an ignitable explosive composition.
A detonation signal transmission assembly to transmit, in use, a detonation signal to a detonator to detonate an explosive charge, includes a length of optical fibre, connectable, in use, to a primary optical detonation signal generator configured to generate a primary detonation signal, of an optical nature, and to transmit the primary detonation signal along the optical fibre. The optical fibre is bent to define, along its length, at least one acutely or obtusely angled portion having a vertex. Also included is an electronic photosensitive primary detonation signal reader arrangeable, in use, adjacent the vertex of the angled potion and on a side thereof that defines an external angle of the vertex, thereby to read the optical detonation signal transmitted along the optical fibre through a continuous wall of the optical fibre at the vertex on the side thereof that defines the external angle.
A pump assembly wherein two side-by-side collapsible containers are simultaneously compressed so as to expel materials, held in the containers, in substantially equal volumes. The expelled materials are mixed to make an explosive composition.
B01F 13/00 - Other mixers; Mixing plant, including combinations of dissimilar mixers
B05C 17/005 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure
B05C 17/01 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with mechanically or electrically actuated piston or the like
B05C 17/015 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with pneumatically actuated piston or the like
B65D 1/02 - Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
B65D 83/00 - Containers or packages with special means for dispensing contents
A method of providing an emulsion explosive underground in a mine (10) having a downwardly extending mine shaft (12) and a cage (14) arranged for travelling along the mine shaft (12) includes transferring an emulsion explosive fuel underground, transferring an emulsion explosive oxidiser underground along a downwardly extending conduit (28) located inside the mine shaft (12), and mixing the emulsion explosive fuel and the emulsion explosive oxidiser underground in the mine to provide an emulsion explosive.
E21D 9/00 - Tunnels or galleries, with or without liningsMethods or apparatus for making thereofLayout of tunnels or galleries
F42D 1/10 - Feeding explosives in granular or slurry formFeeding explosives by pneumatic or hydraulic pressure
C06B 47/14 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
C06B 33/06 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
C06B 47/14 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
A signal tube connector which can be used with a number of signal tubes which includes a detonator receiving body and a retention member, wherein a signal tube locating space is formed between opposing surfaces of the body and the member and wherein the retention member is movable relative to the body and can be locked in place with a locking mechanism to retain signal tubes within the space.
A pyrotechnic time delay element which includes a casing made from a plastics material, a pyrotechnic composition inside the volume, a membrane inside the volume against one end of the pyrotechnic composition and a primary explosive inside the volume on an opposing side of the membrane.
F42C 9/10 - Time fuzesCombined time- and percussion- or pressure-actuated fuzesFuzes for timed self-destruction of ammunition the timing being caused by combustion
An explosive booster assembly (70) which includes a primary module (10) with a first housing (12) and a first booster (14), wherein a detonator (62) is engageable with the first housing, and an auxiliary module (30, 30A) which comprises a second housing (32) with a second booster composition (34), wherein the second housing (32) is interengageable with the first housing (12) to expose the first booster composition (14) to the second composition (34), and wherein any number of substantially identical auxiliary modules (30, 30A) are engageable with one another in order to form a compound booster assembly.
C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
C06B 47/14 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
A method of charging a blasting borehole (58) includes submerging a lower portion of a conduit (50) in a main explosive charge (62) in a blasting borehole (58) such that an upper portion (52) of the conduit (50) is exposed, and feeding a booster pack (26) into the conduit (50) so that the booster pack (26) is at or below an upper surface level of the main explosive charge (62) in the blasting borehole (58).
An explosives detonator system (10) comprises a detonator housing (13) within which is provided a detonation circuit (17) that comprises a conductive pathway (16) having a fuse head (14) integrated therewith such that the conductive pathway (16) passes along both electrodes and a resistive bridge of the fuse head (14). An uncharged chargeable voltage source (12) is also integrated with the detonation circuit (17) and is electrically sensitive to a charging property which is included in a charging signal. Exposure to the charging property charges the voltage source (12), thereby rendering it capable of generating a potential difference between the electrodes at least to equal the breakdown voltage of the resistive bridge. The charging property is any one or more of a charging light pulse, a charging temperature, a charging pressure and a charging radio frequency.
An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal. The system also includes a switching device that detects a chemical compositional component as a switching property of a switching signal that is transmitted to the detonator system, with the switching device being capable of switching the initiating device, on detection of the chemical compositional component, to a standby condition in which the initiating device accepts the detonation initiating signal when it is transmitted thereto.
An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal. The system also includes a radio frequency identification (RFID) based switching device that detects a switching property of a radio switching signal that is transmitted to the detonator system and switches the initiating device, on detection of the detonation initiating property, to a standby condition in which the initiating device is capable of operatively accepting the detonation initiating signal when it is transmitted thereto.
A crimping device (10) for crimping the mouth of a metal housing, comprises a support (11), and crimping elements (36) on the support (11). Each crimping element (36) has a front end face (36.2), and a pair of abutment side faces 836.4) located respectively on opposite sides of the end face (36.2). The crimping elements (36) are movable to displace their front end faces (36.2) between extended and retracted configurations. The front end faces (36.2) of the crimping elements (36) collectively define, when the crimping elements (36) are in their extended configuration, a segmented crimping ring having, at its centre, a crimping axis (A1). The device (10) also includes a cam (40) defining a cam surface (40.3), and a connecting element (42) connecting the cam (40) to each crimping element (36). The connecting elements (42) are arranged to displace their associated crimping elements (36) on displacement of the cam (40) such that the front end faces (36.2) of the movable crimping elements (36) are thereby synchronously moved into their extended configuration.
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
B25B 27/10 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
B25B 27/14 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
A shock tube igniter (10) which comprises a disposable housing (20) in which are located a battery (22), a timer (28), and a controller which, under controlled conditions, causes discharge of electrical energy into the shock tube (14).
A method producing a surfactant from glycerol by converting glycerol, in a first step, to glycidol, polymerizing glycidol to an aliphatic alcohol and finally substituting a hydroxyl group with a substitute anion.
C07C 29/36 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy groups, e.g. O-metal
C07C 201/10 - Preparation of nitro compounds by substitution of functional groups by nitro groups
C07C 205/02 - Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to acyclic carbon atoms of a saturated carbon skeleton
C07C 31/24 - Tetrahydroxylic alcohols, e.g. pentaerythritol
An explosive initiator which includes a tubular housing of a non-electrically conductive material, a radio frequency identification device embedded in the material, a time delay component and a thermal insulator between the time delay component and the housing.
A detonator which includes an explosive and an initiator for igniting the explosive, wherein the initiator includes a thermite composition and a tinder mixture which includes silicon and dibismuth trioxide.
C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06C 9/00 - Chemical contact ignitersChemical lighters
C06B 33/12 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
A sensitizing composition to sensitize a base emulsion, for use in an explosive composition, which includes a carrier emulsion, of a liquid non-polar organic fuel, a surfactant and an aqueous solution, and a plurality of microspheres suspended in the carrier emulsion.
C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
C06B 47/14 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
The invention relates to a process for producing an ammonium nitrate/fuel oil explosive. The process includes forming an emulsion by admixing an oil with water. Ozone is then introduced into the emulsion to obtain an ozonated emulsion. The ozonated emulsion is admixed with solid particulate ammonium nitrate such that the emulsion is absorbed into the ammonium nitrate. An ammonium nitrate/fuel oil explosive is thereby formed.
C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
C06B 31/28 - Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
C06B 47/14 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
patents
