444 results about "Detonator" patented technology

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.

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.

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 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.

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.

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.

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 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.

An intelligent standard-emulsion-explosive charging robot suitable for underground engineering. The charging robot comprises a blast hole identification device (1), an air blowing and pushing device (2), a robotic arm (3), an air compressor (4), a detonator device (5) and a charging device (6), wherein the blast hole identification device comprises an industrial camera (7) and a fill light (8); the air blowing and pushing device comprises the air compressor, an air blowing and pushing tube (10) and servo electric motors (11-1, 11-2); the detonator device comprises a detonator compartment (15), a servo electric motor (16), a coupling (17), a robotic gripper (19), a steering gear (20) and a ball screw (21); and the charging device comprises a driving device and an explosive compartment (24). The intelligent charging robot has a compact structure and a high degree of automation, and can simultaneously push a plurality of emulsion explosives in a single operation, thereby reducing the labor intensity and improving the tunnel construction efficiency.

The invention discloses an integrated selective-firing detonator special for oil and gas wells, including an integrated selective-firing detonator body and a detonation transmission device for receiving and transmitting external detonation signals to control selective firing of perforating bullets. The integration of the detonation transmission device, the selective-firing detonator body, and grounding protection components reduces assembly procedures and improves system integrity and reliability. The cooperation between a control mechanism and a selective-detonation mechanism significantly enhances the reliability of the product. Meanwhile, a grounding nut and a high-temperature shell improve electrical safety. The compact structure simplifies operation and improves working efficiency.

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.

A perforating gun includes a gun assembly and a gun barrel. The gun assembly includes a charge tube comprising at least one shaped charge. A pin contact assembly is operably attached to a first end of the charge tube and includes a contact spacer and a through pin configured to provide electrical communication between respective perforating guns. An addressable switch assembly is attached to a second end of the charge tube and comprises an addressable switch and a detonator. The gun assembly is situated within the gun barrel and is configured to self-orient inside the gun barrel.

The invention discloses a channel blasting control method, device and equipment and a medium. The method comprises the steps of obtaining channel blasting area data; generating a collaborative protective layer construction strategy according to the channel blasting area data; generating a corresponding first blasting control strategy according to the channel blasting area data; under the condition that the electronic detonator is controlled to start blasting according to the first blasting control strategy, blasting monitoring data are obtained; and the blasting monitoring data are input into a blasting feedback adjustment model, the blasting feedback adjustment model analyzes a vibration propagation rule according to the blasting monitoring data and modifies the first blasting control strategy, and a second blasting control strategy is obtained. The vibration reduction efficiency of channel blasting can be improved, and the risk of damage to the surrounding environment and the structure of a building is reduced.

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.

The utility model provides a detonator fixing device, which relates to the technical field of detonator fixing devices, and comprises a fixing tube, one end of the fixing tube is fixedly connected with a fixing block, two screw rods are inserted on the fixing block in a threaded manner, the fixing tube is provided with a fixing structure, the fixing structure is mainly composed of six sliding rods, and the sliding rods are fixedly connected with the fixing block. The six sliding rods are slidably inserted into a fixing pipe, one end of each sliding rod is fixedly connected with a clamping block, a rubber pad is fixedly connected to the clamping block, two adjusting rings are rotatably connected to the fixing pipe, three adjusting blocks are fixedly connected to the interiors of the adjusting rings, the sliding rods are sleeved with first springs, and the sliding rods are sleeved with second springs. The utility model solves the problem that the construction period is prolonged because the blasting hole needs to be filled with cement to position the detonator after the detonator is put into the blasting hole at present and the filled cement generally needs to wait for the blasting operation after being solidified.

In general, in one aspect, embodiments relate to a detonator assembly that includes a detonator housing that includes a detonating cord receptacle and a detonator receptacle, a detonator seated within the detonator receptacle, a detonating cord seated within the detonating cord receptacle side-by-side the detonator, and a grounding clip that extends lengthwise along a substantial portion of the detonator housing, where the grounding clip extends beyond an axial end of the detonator housing.

The invention provides an intelligent monitoring method and system for an electronic detonator continuous production line. The method comprises the following steps: performing continuous temperature field scanning on the surface of the injection mold to obtain gradient change data; driving a temperature response unit array configured by the mold to execute subarea phase change triggering, absorbing heat of a local overheating area and generating a phase change completion degree quantization parameter; analyzing and positioning a heat-flow density abnormal region by using a thermal resistance network, and performing spatial topological correlation processing to generate a heat-flow density deviation distribution diagram; executing multi-objective optimization on a cooling channel airflow controller to generate a self-adaptive airflow distribution instruction set; and path planning is conducted on the air cooling execution mechanism, and a mold temperature production line regulation and control parameter set is generated. According to the technical scheme provided by the invention, through three-stage cooperation of zoning phase change temperature control, explosive chamber safety association and multi-target airflow optimization, the mold temperature balance control is realized while the thermal shock risk of the detonator charging area is avoided.

The utility model relates to the technical field of blasting detonator, disclose a kind of triple waterproof wire card, including upper cover and lower shell, the lower shell is provided with the spring leaf for the bus and foot line card into, the upper cover is protruding with the first reinforcing rib of circumferential closure, the lower shell is provided with sealing ring around spring leaf, when the first reinforcing rib and sealing ring interference fit when upper cover and lower shell cover;The sealing ring is also provided with the bus sheath that can be inserted into the bus of the sealing ring, and the foot line sheath that can be inserted into the foot line, the sealing ring inside is also protruding with second reinforcing rib.The triple waterproof structure design of bus sheath+sealing ring+the rectangular second reinforcing rib of protruding can make wire card can be completely soaked in underwater 5m deep environment Normal work four hours.

The invention discloses a collision test method and test system for an energy storage element of an electronic detonator, and belongs to the technical field of initiating explosive device test. The method comprises the following steps: blocking an electronic detonator sample with a first rotating speed by adopting a blocking mechanism on a collision test system, so that the electronic detonator sample collides with the blocking mechanism; capturing a voltage curve image at the collision moment T through a voltage curve monitoring and processing unit, and calculating to obtain a first drop amplitude value under the maximum voltage at the collision moment T according to the captured voltage curve image; capturing a voltage curve image from the collision moment T to the first collision duration T + T1 through a voltage curve monitoring processing unit, and calculating to obtain a voltage drop rate from the collision moment T to the first collision duration T + T1 according to the captured voltage curve image; and evaluating the impact resistance of the energy storage element according to the obtained first drop amplitude under the maximum voltage and the voltage drop rate. The collision test method provided by the invention is beneficial to improving the accuracy of a collision test result.

A detonator for a perforating gun. The detonator is used to ignite a detonator cord in a charge tube for a perforating gun assembly, which in turn is used for perforating a wellbore. The detonator includes a cartridge. The cartridge comprises a tubular body having a first end; and a second end. Preferably, the tubular body is fabricated from a metallic material. The detonator also comprises a post proximate the first end of the tubular body. The post is configured to be in electrical communication with a first leg wire connected to an addressable switch. Alternatively, the post is in contact with the end of a detonation pin. The detonator also has a fuse head within the bore of the tubular body, and a fuse wire. The fuse head is in contact with the explosive charge material. The detonator is releasably snapped into a compartment located within the charge tube.

The invention discloses an explosive-proof rod mechanism started in place based on inertia, and belongs to the technical field of fuze explosive-proof mechanisms. The explosive-proof rod mechanism comprises a body, an explosive-proof part and a guide pin part; the body is internally provided with a shaft hole used for the explosion-proof part to move in the axial direction, and the explosion-proof part comprises an explosion-proof rod and a spring. The explosion-proof rod comprises an explosion-proof tube shell, a detonating grain is arranged in the explosion-proof tube shell, and a curve groove extending from the top to the bottom is formed in the side face of the explosion-proof tube shell. A guide pin component is arranged in the body, and a guide pin of the guide pin component extends into the curve groove in an explosion-proof state and can move out of the curve groove and extend out to clamp the explosion-proof rod after the explosion-proof component moves in place; and the body is also provided with an electric detonator. The invention further discloses a safety system of the explosion-proof rod mechanism. The movement time of the explosion-proof part is prolonged, the explosion-proof part is prevented from instantly moving in place under the large overload condition, meanwhile, the in-place self-locking function is achieved, a safety system of the explosion-proof rod mechanism is locked through a two-stage safety mechanism, and safety and reliability are achieved.

The invention provides an integrated nail shooting primer composition and a preparation method thereof, the integrated nail shooting primer composition comprises the following raw materials: potassium chlorate, antimony trisulfide, lead tetraoxide, fine iron powder, silicon powder and sodium persulfate, the raw materials are prepared, accurately weighed, mixed and stirred, granulated, dried and screened, the dried particles are screened, and too large or too small particles are removed. According to the integrated nail shooting primer composition provided by the invention, the explosion performance can be improved by arranging the Teramine in the potassium chlorate, the antimony trisulfide, the lead tetraoxide, the iron concentrate powder and the silicon powder, the integrated nail shooting primer composition can play a strong explosion role in the fields of military and industrial explosion and the like, and the explosion propagation performance is good; the device can be used for filling detonators and manufacturing booster grains and detonating cords, and the efficiency and safety of blasting operation are improved.

An ejection device (100) for a gas generator, the ejection device (100) for ejecting a combustion product, comprising: a detonator (101) with an ignition charge and an ignition area (102) designed to burn the ignition charge; a pyrotechnic device (121) arranged to be burned by burning the ignition charge; a cup (104) made of metal, wherein the cup (104) has a base (107) and a peripheral wall (105), wherein the bottom surface (107) is arranged opposite the ignition area (102), the peripheral wall (105) adjoins a peripheral edge of the bottom surface (107) and is arranged to surround the ignition area (102), wherein the cup (104) further comprises a receiving space (120) which is defined by the peripheral wall (105) and the floor area (107) is formed and receives the pyrotechnic agent (121), wherein the bottom surface (107) of the cup (104) contains a through-hole (108) through which the receiving chamber (120) and an exterior area of ​​the cup (104) are connected, wherein the through-hole (108) is formed by several peripheral through-hole edges (108a, 108b, 108c, 108d), and the adjacent peripheral through-hole edges (108a, 108b, 108c, 108d) are connected to each other at a predetermined connection point, the through-bore (108) contains a narrow part (115) in which the width of the through-bore (108), formed by each of parts of the two peripheral through-bore edges (108a, 108b, 108c, 108d) of the several peripheral through-bore edges (108a, 108b, 108c, 108d), gradually decreases with increasing distance from a center of the bottom surface (107) to the peripheral edge of the bottom surface (107), and the narrow part (115) is closer to the peripheral edge of the bottom surface (107) than a non-narrow part (125) formed by each of the other parts of the two peripheral through-bore edges (108a, 108b, 108c, 108d), and the narrow part (115) is a predetermined part in which stress due to the emission of the combustion product is concentrated, and the bottom surface (107) is designed to be split starting from the narrow part (115), and the peripheral wall (105) is designed to be split.

The invention discloses a wireless detonator inserting device for vertical blast hole charging, which belongs to the technical field of blasting engineering machinery and comprises an advancing mechanism, a cartridge clamping mechanism and a detonator inserting mechanism. According to the cartridge clamping mechanism, clamping blocks distributed in a long-strip-shaped annular array and a bottom supporting block cooperate to achieve uniform holding and stable bearing of the whole column of cartridges. The detonator inserting mechanism forms a high-precision linear motion unit through a positioning seat capable of vertically moving and a sliding barrel with a detonator forward-pushing long rod, the position can be adjusted according to the blasting depth, a wireless detonator is accurately and straightly inserted into a cartridge in the radial direction, and a rubber head at the end of the forward-pushing long rod of the detonator inserting mechanism effectively prevents the detonator from being damaged. The traditional dangerous manual operation is changed into mechanical operation, and the safety and efficiency of blasting charge operation are remarkably improved.