698 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.

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.

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 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 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.

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.

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.

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.

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.

The invention discloses an aqueous medium interval charging and detonation control method for improving strip mine blasting efficiency, which comprises the following steps: S1, according to strip mine rock properties and blasting requirements, determining blast hole parameters, and adopting an aqueous medium as an axial interval medium to carry out axial non-coupling charging to form a specific aqueous medium interval charging structure; s2, through a field test, an aqueous medium interval charging structure blasting test is carried out under different unit consumptions, and the optimal unit consumption of strip mine aqueous medium interval charging structure blasting is determined; s3, a hole-by-hole delay detonation method is adopted, precise delay detonation is achieved in combination with a digital electronic detonator, and reasonable delay detonation time is calculated according to the rock blasting and crushing principle; and S4, monitoring a blasting vibration signal by using a blasting vibration meter on a blasting site, and adjusting blasting parameters in real time according to a monitoring result. The method has the effects of improving the blasting crushing effect, reducing the explosive unit consumption, reducing the blasting harmful effect and improving the mining efficiency.

A perforating gun assembly that orients one or more shaped charges within a well includes a housing and an orienting internal assembly configured to be disposed within a longitudinal bore of the housing. The orienting internal assembly may include at least one shaped charge holder or charge tube, a rotation support system, a detonator holder and / or a detonator. The rotation support system may be configured so that the detonator holder and / or detonator rotate together as a whole with the at least one shaped charge holder or charge tube. The rotation support system may include at least one bearing assembly, a plurality of rollers, or combinations thereof. The orienting internal assembly may be configured for gravitational orientation.

The invention discloses a tunnel full-section excavation support forming construction method with an inverted arch. The method comprises the following steps that construction preparation is conducted; an arch frame is manufactured, the arch frame comprises an arch wall section and an inverted arch section, and the arch wall section and the inverted arch section are spliced and connected; performing drilling construction on the tunnel face to obtain blast holes, installing detonators in the blast holes, and performing blasting to obtain a tunnel section; trimming the contour line of the tunnel section; mounting the arch frame to the tunnel section, connecting a reinforcing mesh to the arch frame, and hanging the reinforcing mesh; wet-spraying concrete to the inverted arch section and the arch wall section to form a closed support ring; and the tunnel section is monitored and measured. According to the construction method, the problems that in the prior art, inverted arch construction often needs to be independently operated after an arch wall is closed, the opening time is long, the construction difficulty is large, a structure of'the arch wall is closed but the inverted arch is not closed 'is formed, circumferential stress is incomplete, and the overall stability is poor are solved.

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 an unmanned aerial vehicle catching gun grenade, and relates to the technical field of unmanned aerial vehicle defense. The gun grenade comprises an air cap, a heavy hammer part sleeve, a catching net, a net expanding exploder and a cartridge case. The heavy hammer part sleeve is formed by combining a plurality of split heavy hammer blocks, and the rear end of the heavy hammer part sleeve is hooped by a brittle constraint ring. The net expanding exploder comprises a delay ignition unit and an explosion initiation unit. After launching, the delay ignition unit triggers the detonation unit after delaying a preset time to generate impact to crush the brittle constraint ring, so that the heavy hammer block carries the catching net to be scattered and unfolded at a high speed, and interception is realized. The device is compact in structure, low in cost and high in reliability, can be launched through a gun grenade launcher, is particularly suitable for being carried and used by an individual soldier, and can effectively cope with the threat of a small-sized high-speed unmanned aerial vehicle.

A blast hole charging structure for bridge demolition comprises a blocking structure, a cartridge bag, a water bag, a nonel detonator, a pressure relief and vibration reduction layer and a supporting block. The blocking structure comprises an end blocking structure arranged at the shot hole and a middle blocking structure arranged between the two closed spaces, an end outer plug and an end inner plug of the end blocking structure are connected through an end through hole, and a middle inner plug and two middle outer plugs of the middle blocking structure are connected through middle through holes. Each cartridge bag and each water bag are sent into the blast hole in a segmented mode through the supporting blocks, the water bags are arranged beside the cartridge bags, air gaps are formed between the cartridge bags and the inner wall of the blast hole and between the water bags and the inner wall of the blast hole, nonel detonators are connected with the cartridge bags in all the closed spaces through the middle blocking structures, and finally the end blocking structures are installed at the positions of blast holes of the blast hole. And the nonel detonator penetrates through the end part blocking structure and extends out of the blast hole. Under the same blasting strength, the use amount of the explosive bags can be reduced, pollution is reduced, and the phenomenon of resource waste caused by too many blast hole compartments is avoided.

Provided herein are shaped-charges having curved walls to provide better controllable and improved liquid jet parameters. The shaped-charge comprises a container having a plurality of curved walls for containing a liquid. One or more explosive charges are immersed in the liquid and a detonator channel positioned through the container wall to controllably detonate the one or more explosive charges and from a wedge-shaped liquid jet. Multipoint initiation is achieved using a number of initiation points; a location of one or more initiation contact points with the geometrically-shaped explosive charges; and / or an initiation timing of each of the initiation contact points, including simultaneous initiation or a sequence of initiations. Also provided are related methods of forming liquid jets and attendant applications, including target disruption.

The invention provides a full-life-cycle management and control system and method for an intelligent primer without detonating of a detonator, and belongs to the technical field of civil explosive materials. The problem that the whole life cycle of an existing primer cannot be effectively managed and controlled due to incomplete management and control means of the existing primer is solved. According to the technical scheme for solving the technical problem, the intelligent primer without detonator detonation comprises an intelligent primer shell, the intelligent primer shell is filled with main charge, and meanwhile, a plasma detonation part is fixedly arranged in the center of the interior of the intelligent primer shell; an auxiliary explosive package and a plasma detonating body are sequentially arranged in the plasma detonating piece from outside to inside; a plasma detonation control module and a high explosive are arranged in the plasma detonation body, and an RFID passive chip and a plasma excitation element are integrated on the plasma detonation control module; the method is applied to full-life-cycle management and control of the intelligent detonating tool for detonating without detonating caps.

Provided herein are mass focusing shaped charges and related methods useful for disrupting targets in either underwater or on land. The mass focusing shaped charges comprise an explosives shell having an explosives shell surface, wherein at least a portion is curved and defines an inner volume configured to contain an inner volume of fluid or a metal liner. A distal body is comprising a SMART material is positioned between the inner volume of fluid and a to-be-disrupted target. A conformable layer of explosives conforms to at least a portion of a surface of the explosives shell, the conformable layer of explosives configured for explosive initiation by a detonator. Upon explosive initiation the inner volume of fluid or metal liner is forcefully ejected to form a fluid or metal jet in a direction through the distal body and toward the target.

The invention provides a tunnel contour high-precision explosion control method based on lumpiness uniformity optimization, which comprises the following steps of: fusing multi-source geological data to construct an updatable model, and triggering encryption measurement and correction by deviation; training a depth model by using a historical multi-modal case, and generating an initial blasting parameter; multi-objective optimization is carried out with the minimum back break, the maximum block yield and the minimum unit consumption as objectives, and gradient charge changing along with the hole depth is obtained; simulating a crack and a wave field in digital twinning, optimizing a detonation sequence to form destructive interference on a contour surface, establishing an electronic detonator network for self-inspection, and then performing blasting; evaluating the radial deviation by point cloud alignment after explosion, calculating the particle size and the qualified rate by images, generating a thermodynamic / cloud picture, and carrying out early warning and shutdown when the threshold value is exceeded; and on the basis of monitoring feedback and reinforcement learning self-adaptive adjustment, contour and lumpiness closed-loop optimization is realized.

The invention provides a detonation pressure optical testing device for a micro-dose powdery explosive, which comprises a rotating mirror type scanning camera and an explosive detonation unit, and is characterized in that the rotating mirror type scanning camera is used for collecting a shock wave motion trail image when the powdery explosive is detonated; the explosive detonating unit comprises an organic glass column body and a high-pressure exploder, an explosive charging hole with an open top is formed in the organic glass column body in the axial direction, a stress wave adjusting rod is arranged in the explosive charging hole in a penetrating mode, and the bottom face of the stress wave adjusting rod can make contact with powdery explosives charged into the explosive charging hole; a first detonating hole and a second detonating hole are coaxially formed in the organic glass column body in the radial direction, and both the first detonating hole and the second detonating hole communicate with the charging hole; the heating wire penetrating through the first detonating hole, the charging hole and the second detonating hole can make contact with the powdery explosive in the charging hole, and the two ends of the heating wire are connected with the positive electrode and the negative electrode of the high-pressure exploder correspondingly. According to the invention, a traditional detonation mode is not needed, the interference of the detonator and the explosion expanding explosive on the measurement process of the sample with the small explosive quantity is solved, and the test convenience and the test precision are improved.

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 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 discloses a method for identifying misfired electronic detonators based on comparison of multiple characteristic information of blasting vibration. The method performs EMMD signal decomposition based on the original blast source information, establishes an AR model to extract multiple characteristic information, and uploads the model and multiple characteristic information to the data center to form a basic database of blasting vibration. At the same time, the original blast source information of multiple blasting sites is collected and its characteristics are extracted to establish a large database of blasting vibration signals under different delay intervals, typical hole network parameters, and charge structures. Then, the actual blasting vibration signal is collected and the actual multiple characteristics are extracted, and they are compared with the multiple characteristics in the large database of blasting vibration signals. When there are characteristic differences, it is determined that there are misfired detonators in this blasting project. The present invention improves the blasting construction efficiency, reduces the great danger in the process of misfired detonator treatment, and improves the safety of using digital electronic detonators at the same time.

The invention relates to the technical field of engineering blasting, and discloses a blast hole wall impact pressure indirect measurement device, which comprises an external fixed steel pipe, a blast hole wall is arranged in the external fixed steel pipe, a blocking material is arranged at the opening end of the external fixed steel pipe, and the external fixed steel pipe is used for transmitting and attenuating the explosion pressure borne by the blast hole wall; the energy source is arranged in an inner cavity of the external fixed steel pipe, and the energy source is an explosive cartridge or a liquefied air energy storage pipe; the detonating equipment comprises an electronic detonator and an electric lead, the electronic detonator is pre-buried in the explosive cartridge or the liquefied air energy storage tube, and the electronic detonator is connected with an external exploder through the electric lead; the strain gauges are fixedly connected to the outer wall of the external fixing steel pipe, and a pressure testing system is arranged outside the external fixing steel pipe. According to the invention, the strain gauges are fixed on the outer wall of the external fixed steel pipe, and the steel pipe is used as a medium for pressure transmission and attenuation, so that the impact pressure generated by explosion is greatly reduced.

The invention provides a blasting control construction method for a quarry based on rock mass lumpiness partition and prediction, and belongs to the technical field of blasting control construction. The method comprises the following steps: surveying and setting out, arranging steps and roads, partitioning blasting lumpiness, carrying out blasting design, predicting blasting grading, evaluating safety, drilling holes, cleaning and checking blast holes, loading explosives and detonators and blocking blast hole openings, connecting a detonating network, cleaning a site and warning all around, detonating and checking after blasting. Checking and eliminating unexploded shots; processing and analyzing muck pile images; clearing dangerous stones on the slope; clearing and transporting rock ballast and cleaning the bottom. Reasonable partitioning is carried out according to six indexes including rock types, rock hardness, average crack spacing, explosive unit consumption, blasting funnel volume and blasting lumpiness distribution indexes in a quarry, the qualified rate of specification stones is effectively increased, the resource utilization rate is increased, and a mathematical model Kuz-Ram model for quarry blasting lumpiness distribution forecasting has the advantages of being simple in structure and convenient to use. And predicting and forecasting the grading of the muck pile before blasting, and verifying the muck pile after blasting.

An explosives detonator is configured to be moved across land by a vehicle platform to detonate explosives positioned on or in the land. The explosives detonator includes a frame and a plurality of rollers coupled to the frame. The plurality of rollers are configured to engage and roll along the land relative to the frame about respective roller axes as the vehicle travels along the land. The rollers are weighted to exert pressure on the land and activate any pressure-sensitive explosives, such as mines.

The invention provides a method and equipment for charging electronic detonators in groups. The method is applied to the technical field of civil blasting and comprises the following steps: arranging a plurality of electronic detonators according to a UID code sequence; connecting an exploder with the plurality of placed electronic detonators, and electrifying the electronic detonators by the exploder; after the electronic detonators receive the scanning instruction of the exploder, the electronic detonators are scanned in sequence; distributing delay time for each electronic detonator in the detonator network according to preset delay information in the exploder; if yes, after a charging instruction is received, the electronic detonators are divided according to the preset group number and the UID coding sequence, and the group numbers are gradually increased from near to far according to the distance between the group numbers and the exploder; sequentially starting the groups for charging according to the group numbers from large to small, setting a preset voltage when each group is started, and simultaneously charging with the started group; and when all the electronic detonators reach the detonation voltage, charging is stopped. The invention ensures that the preset voltage of the electronic detonator reaches a saturated state, and reduces the non-explosion rate.