1156 results about "Detonator" patented technology

The invention discloses a tunnel deep-buried drainage ditch rapid blasting excavation method based on vertical drilling, which comprises the following steps: step 1, detecting the geology in front of a tunnel by using vertical drilling coring, geological radar and TSP seismic wave technology, and constructing a three-dimensional model; 2, generating an asymmetric hole net layout based on a geological model and AI, and setting a drilling-free vibration isolation belt; the design of dense inside and sparse outside is adopted, and vibration propagation is blocked; thirdly, a three-stage air spacer is arranged at the bottom of the blast hole, segmented charging is implemented, the explosive energy release time is prolonged, and the single-segment explosive quantity peak value is reduced; fourthly, an electronic detonator is adopted for millisecond detonation, and peak vibration is weakened through the waveform superposition offset effect; 5, arranging fiber grating sensors in the tunnel, collecting data in real time and transmitting the data to the cloud AI platform; dynamically adjusting parameters based on the monitoring data; and 6, evaluating a blasting effect through a three-dimensional laser scanner, generating an evaluation report in combination with data, updating a BIM model database, and continuously optimizing an AI algorithm.

Some implementations include a perforating gun configured for transport with an internal detonator, the perforating gun to be used in a wellbore proximate to one or more subsurface formations, the perforating gun comprising: a detonator assembly positioned proximate to a ballistic initiator end of the perforating gun, wherein the detonator assembly includes the detonator; and a detonation cord positioned proximate to a receiver end of the perforating gun, wherein the ballistic initiator end is on an opposing side of the perforating gun from the receiver end; and an isolation cask disposed at the ballistic initiator end of the perforating gun, wherein the detonator assembly is recessed within the isolation cask.

The invention discloses an explosive welding method for preparing a super-thick large-area composite plate based on a nickel-based alloy plate. A steel plate serves as a base plate, a plurality of supporting blocks are laid, a nickel alloy plate is placed on the supporting blocks, then powdery emulsion explosive is laid, a detonator is placed, and finally the super-thick large-area nickel-based alloy composite plate is prepared after explosive cladding and detection are qualified. According to the explosive welding method for preparing the super-thick and large-area composite board based on the nickel-based alloy board, explosive cladding of the super-thick and large-area nickel-based alloy composite board is achieved, the fitting rate, the shear strength and other performance of the composite board can meet the requirements, and the mechanical performance and the corrosion resistance can meet the requirements of development of the industries such as equipment manufacturing and chemical engineering.

The invention discloses a method and device for automatically grabbing detonators. A device for grabbing the detonator is arranged on a middle blocking production line or an opening closing production line of the detonator; a group of expansion heads are arranged at the bottom of the device; the opening of the detonator is expanded and clamped by the expansion heads through the lifting of a cylinder control device and the deformation of the expansion heads to realize the purpose that the detonator is automatically taken out from a detonator filling mould. In the invention, the expansion heads controlled by machinery are adopted, and the opening of the detonator is expanded and clamped after the expansion heads are deformed, so that the detonator is automatically taken out from the detonator filling mould. A plurality of expansion heads are arranged at the same device, thus a plurality of detonators can be taken out by one device at one time, thereby greatly improving the production efficiency. The method provided by the invention is simple; and the adopted device is easy to manufacture, and has a good using effect.

A system for delivering and activating a two-part explosive may include an unmanned vehicle and / or an elevated structure, and a two-part explosive device. The device may include a container that is attached to, and releasable from, the unmanned vehicle or elevated structure. The container may contain an unsensitized explosive enclosed in a casing and and a sensitizing agent adjacent to the casing. The device may include an opening mechanism positioned at least partially within the container and adjacent to the casing. The opening mechanism may open the casing and expose the unsensitized explosive to the sensitizing agent, forming the two-part explosive in response to the container being released from the unmanned vehicle or elevated structure. The device may include a detonator inside or attached to the container. The detonator may trigger ignition of the two-part explosive after the unsensitized explosive is exposed to the sensitizing agent.

Systems, methods, and apparatus including an autonomous ballistic arming mechanism that may be used in well systems. A first well tool may include an initiating device, and a ballistic barrier housing the initiating device. The ballistic barrier may be configured to mechanically move when the first well tool is engaged with a second well tool to position the initiating device for ballistically arming the first well tool. The first well tool may be a first perforating gun system, the second well tool may be a second perforating gun system, and the initiating device may be a detonator. The ballistic barrier may mechanically move to align the initiating device with a detonating cord of the second well tool for ballistically arming the first well tool.

An embodiment of a perforating gun system deployable in a wellbore extending through a subterranean earthen formation includes a tandem sub including a sub housing and a signal pod receivable in the sub housing, wherein the signal pod includes a detonator and a receptacle; and a perforating gun including a charge carrier configured to receive one or more shaped charges, the charge carrier including a detonator cord housing configured to receive a terminal end of a detonator cord, and wherein the detonator cord housing is receivable in the receptacle of the signal pod to ballistically couple the detonator cord with the detonator.

A downhole perforating gun system provides wireless electrical communication between an inner body conductor, a switch, a detonator, and a feedthrough, and further comprising a weight module and a bearing assembly wherein the weight module is rotatable by a weight via a bearing assembly based on gravity acting on one or more of the weights.

In general, in one aspect, embodiments relate to a charge tube assembly that includes a charge tube, a detonator housing interlocked with the charge tube, an end alignment interlocked with the charge tube, and a detonation cord extending from the detonator housing to the charge tube.

A detonation module for a perforation tool includes a detonator, a switch circuit disposed in a fluid-sealed housing and electrically coupled to the detonator, a shielding circuit coupled to the switch circuit, an annular electrical contact electrically coupled to the switch circuit, and an annular, electrically conductive, compressive member to form a compressive electrical connection with an end of a perforation unit.

A safety arrangement for a wireless blasting system which includes a plurality of wireless detonator assemblies located at a blast zone wherein each route which provides access to the blast zone is monitored to detect removal of a wireless detonator assembly which is in an operative mode from the blast zone.

A device which is used to position a detonator assembly in a borehole. The device has a housing with an open mouth into which one end of the detonator assembly is inserted, formations on the housing which then engage with the detonator assembly, and flexible elements which extend from the housing and which are configured, in use, to engage with a wall of a borehole into which the device and the detonator assembly are inserted.

A detonator housing facilitates assembly of detonator components of a perforating gun. In an example, the detonator housing comprises a housing body configured for coupling to a charge tube of a perforating gun. A detonator receptacle is formed on the housing body for receiving a detonator. A detonating cord receptacle is formed on the housing body adjacent the detonator receptacle for receiving an end portion of a detonating cord in an overlapping relationship with the detonator. A detonating cord stop is formed on the detonating cord receptacle to limit an insertion depth of the detonating cord within the detonating cord receptacle.

The invention provides a blasting control method for simultaneously creating a free surface in advance by front-row holes in a slag pressing blasting area, which comprises the following steps of: arranging front-row blast holes and rear-row blast holes: arranging the front-row holes in the slag pressing area along a free surface direction, arranging rear-row holes in a main blasting area, and arranging according to a preset hole distance, a preset row distance, a preset hole depth and a preset charging coefficient; the front-row holes are set to be at the same detonation moment, so that synchronous detonation of the front-row holes earlier than that of the rear-row holes is achieved, the same multi-section charging is conducted in the blast holes of the front-row holes, and multi-section detonator detonation can be conducted in the same high-frequency millisecond detonation mode; setting delayed detonation of the rear row holes: setting the detonation moment of the rear row holes to be 10-20ms after the last section of detonation moment of the adjacent front row holes; and detonating implementation: detonating control is carried out by adopting a blasting network established by digital electronic detonators. According to the method, a continuous and stable free surface can be formed in the slag pressing blasting area, the crushing effect of follow-up blasting is improved, and the boulder yield is reduced.

The invention discloses an automatic clearing mechanism for hemming scraped objects of a firer detonator. The automatic clearing mechanism comprises a hemming module, a redundant object clearing module and an upper table top, the hemming module is fixed on the front surface of the upper table top and is used for realizing hemming operation on a product; the redundant material cleaning module is fixed to the back face of the upper table top and used for cleaning redundant materials. According to the mechanism for automatically removing the scraped objects on the hemming edges of the firer detonators, the metal scraped objects can be effectively, continuously and stably removed automatically, a foundation is laid for automatic hemming of products such as the firer detonators, and the problem that the scraped objects are prone to being generated on a hemming tool and cannot be hemmed continuously and automatically during hemming of soft materials is solved.

A perforation gun assembly may include a single shaped charge holder, the shaped charge holder having a charge receiving structure and at least one projection extending from the charge receiving structure. A detonation cord and a detonator may be connected to the shaped charge holder. A top connector may be configured for connecting to a first base of the shaped charge holder and a bottom connector may be configured for connecting to a second based of the shaped charge holder. The perforation gun assembly may be positioned within an outer gun carrier of a perforation gun, and a tandem seal adapter may be positioned at least in part within the outer gun carrier.

The present invention is directed toward an addressable ignition stage which produces an output sufficient to detonate a secondary explosive, generally. The present invention comprises addressability and ignition functions that may be used together or separately to incorporate a high-power resistor with a thermally conductive substrate allowing for operation at high temperatures for ignition. The ignition stage is amendable to high volume production, exhibits a high degree of reliability, robustness and operational dependability for use alone or configurable into existing technology.

The invention discloses a drilling, deslagging, charging and blocking integrated device, which belongs to the technical field of tunnel engineering and open-air engineering blasting equipment, and comprises a mobile vehicle body, a multi-link structure, a drilling and deslagging device, an explosive filling device and a stemming blocking device. The drilling and deslagging device is used for drilling and discharging drilling cuttings; and the explosive filling device independent track is arranged above the drilling machine beam track in parallel and is used for accurately conveying detonators and emulsion explosives into holes. After drilling is completed, the explosive filling device moves downwards in parallel to be aligned with the hole site for charging; after charging, the device moves upwards to drive the stemming plugging device to reach an orifice, and drilling cuttings discharged by drilling are directly used as stemming raw materials for automatic compaction and plugging. The problems that in the traditional blasting construction process, equipment is frequently switched, the manual operation efficiency is low, high-risk link manual operation needs to be conducted, and stemming raw materials need to be prepared independently are solved, automatic continuous operation of the whole process of drilling, charging and plugging is achieved, and the construction efficiency and intrinsic safety are remarkably improved.

A transportable well completion tool is described. The transportable well completion tool comprises a housing with a charge module disposed within the housing. The charge module comprises explosive charges. An initiator module comprising a detonator is coupled to the housing, and a bulkhead member is disposed within the housing between the initiator module and the charge module. A containment cover is secured to the housing to cover the detonator. The transportable well completion tool can be transported with the containment cover in place, and the containment cover can be removed to connect the well completion tool to a tool string for downhole deployment.

The utility model provides an underwater explosion efficient shaped charge cutting device based on combined charge, which comprises an underwater annular shaped charge structure and a positioning device, the positioning device is connected with a semi-annular shaped charge structure through a connecting device, and the outer side of the semi-annular shaped charge structure is connected with a detonator; the two positioning devices are arranged on the outer side of the cutting position of the target tubular structure, and the two positioning devices are fixed to each other; the two semi-annular shaped charge structures are arranged on the outer side of the cutting position of the target tubular structure, the two semi-annular shaped charge structures are fixed to each other, and each semi-annular shaped charge structure comprises a plurality of equally-divided cutting units. The cutting end face formed by the underwater explosion cutting device has high fairness, the refinement level of underwater explosion cutting is improved, the underwater explosion cutting device is suitable for cutting tubular structures in any direction and with any structural parameters on the seabed, deep water cutting operation can be achieved, and the underwater explosion cutting device can also be used for cutting structures with rigid body displacement after underwater explosion of flexible bodies such as steel cables, optical cables and electric cables.

The invention relates to an efficient shaped charge blasting charging device for tunnel smooth blasting, and belongs to the field of tunnel shaped charge smooth blasting. The device comprises an energy gathering pipe I and an energy gathering pipe II, the two ends of the energy gathering pipe I are an end A and an end B, the two ends of the energy gathering pipe II are an end A'and an end B ', the end A of the energy gathering pipe I is close to a blast hole opening, the end B of the energy gathering pipe I is fixedly connected with the end A' of the energy gathering pipe II through a positioning plate, and the end B 'of the energy gathering pipe II is fixedly connected with the end A' of the adjacent energy gathering pipe II through a positioning plate. A filling fixing bag, a water bag, conventional explosives and energy-gathered explosives are sequentially arranged in the energy-gathered pipe I from the end A to the end B, and conventional explosives and energy-gathered explosives are sequentially arranged in the energy-gathered pipe II from the end A'to the end B '; an industrial electronic detonator is inserted into the energy-gathered explosive of the energy-gathered tube II located at the bottom of the blast hole, and a leg wire of the industrial electronic detonator sequentially penetrates through the centers of the energy-gathered tube II and the energy-gathered tube I from the bottom of the blast hole to an orifice. The charging stability and the forming effect of the tunnel smooth blasting peripheral holes can be improved, the construction cost is reduced, and the construction efficiency is improved.

The utility model discloses a detonating control device and a detonating control system for an underwater electronic detonator, and belongs to the technical field of detonating control of initiating explosive devices. The underwater electronic detonator detonation control device comprises a lower half shell, a first hollow cavity is formed in the lower half shell, the upper side of the first hollow cavity is open to form a first open end, and the outer wall of the peripheral side of the first open end is connected with a first annular protrusion; a second hollow cavity is formed in the upper half shell, the lower side of the second hollow cavity is open to form a second open end, the outer wall of the peripheral side of the second open end is connected with a second annular protrusion, and the second hollow cavity communicates with the first hollow cavity to form a mounting cavity; the detonation control unit is arranged in the mounting cavity, and the detonation control unit is used for being in communication connection with the electronic detonator; the sealing assembly is mounted between the annular bulge I and the annular bulge II; and the locking mechanism is connected between the lower half shell and the upper half shell. The detonation control device of the underwater electronic detonator is favorable for improving the reliability of underwater blasting.

The invention relates to a process for preparing a gradient hardening metal plate through explosion hardening, and belongs to the technical field of explosion hardening and gradient hardening materials. In order to ensure the experiment safety, a test site is selected as a static explosion site, a rigid base, a metal plate to be subjected to gradient hardening and a poured high-detonation-velocity plate-shaped explosive are sequentially placed in the site from bottom to top, then the explosive is started by an electric detonator to carry out high-pressure and high-frequency impact hardening treatment on the metal plate, and finally the metal plate subjected to gradient hardening is obtained. The surface hardness is improved to 380-400 HV, and the depth of a hardened layer reaches 15 mm. The process is simple to operate, efficient, convenient and obvious in effect, and does not need large equipment and instruments.

An emergency door release device for a vehicle may include a first sensor to detect a collision and provide a collision indication. A door sensor may detect if a door remains closed after the collision and provide a door indication. A receiver may receive a secondary detonation trigger indication from another device. A processor may analyze the indications to determine if they meet time constraints. A detonator may cause detonation of an explosive to separate the door from the vehicle body if the constraints are met. The device may include additional sensors to detect unsafe conditions. A method and system for releasing a vehicle door using similar components and steps may also be provided.

The invention concerns a blasting system (1) configured for explosive material charging in a borehole (3). The system (1) comprises a detonator support device (5) configured to be inserted into the borehole (3) by means of a charging hose (7); a main body (9) of the detonator support device (5) comprises a channel (8) oriented along a main body centre line (CL) extending along the borehole extension during said explosive material charging; an openable cover device (14) covering the channel (8) is configured to come into contact with the charging hose (7) in motion for pushing the main body (9) along the borehole (3), wherein the charging hose (7) in motion is configured to open the openable cover device (14) whilst a stopping arrangement (13) stops the main body (9). The invention also concerns a method of explosive material charging in a borehole (3) by means of the blasting system (1).

A blasting system wherein each of a plurality of control modules is linked to, and is used to control, a respective group of detonator assemblies, and wherein each control module can communicate with at least one concentrator which is in communication with a master controller.

A transportable well completion tool is described. The transportable well completion tool comprises a housing with a charge module disposed within the housing. The charge module comprises explosive charges. An initiator module comprising a detonator is coupled to the housing, and a bulkhead member is disposed within the housing between the initiator module and the charge module. A containment cover is secured to the housing to cover the detonator. The transportable well completion tool can be transported with the containment cover in place, and the containment cover can be removed to connect the well completion tool to a tool string for downhole deployment.

The present invention describes a safe-and-arm device, mechanism or assembly (160) for a projectile (100,102) equipped with a second-stage propellant (124). The second-stage propellant (124) is ignited after the projectile has been ejected out from a launcher barrel. A lockpin (190), being urged by a spring (194), is responsive to ignition of the second-stage propellant; after the lockpin (190) and spring (194) sense and respond to the second propulsion, an unbalanced rotor (164) forming part of the safe-and-arm device or assembly (160), is released to rotate from a “safe” state to an “armed” state, as the projectile continues traveling along its trajectory to a target. In one embodiment, the projectile is configured with a 40 mm cartridge containing a first propellant (122). An impact sensor may trigger an electric detonator or a point detonator may trigger a stab detonator to set off explosives disposed in the projectile.

Various well-perforating systems and methods are disclosed incorporating a self-shunting detonator. The detonator may include an electrically-conductive detonator body. A resistor initiator inside the detonator body includes first and second leads. A grounding element inside the detonator body couples the detonator body to the first lead. An electrically-conductive clip coupled to the second lead includes an arm biased to electrical contact with an external surface of the detonator body to shunt the detonator. The arm is moveable away from the detonator body to un-shunt the detonator, such as automatically in response to insertion into a detonator housing.

A detonator includes a substrate, a controller mounted to the substrate, and a sensor coupled to the controller to measure a temperature, pressure, acceleration or other environmental parameter of the detonator. The controller is configured to transmit the measured environmental parameter from the detonator to a remote master controller, execute an action in response to a value of the measured environmental parameter, and / or prevent or modify at least one detonator function in response to the value of the measured environmental parameter.