1433 results about "Explosive Agents" patented technology

To provide an information leakage prevention device capable of making information in a hard disk unusable and preventing information leakage from the hard disk. [Solution] The information leakage prevention device 1 comprises a base body on which the hard disk is placed on its inner upper surface, a holder that is placed in contact with the upper surface of the hard disk and has an explosives loading section formed to penetrate the inside of the holder from the bottom to the top, a lid that is provided to cover the top surface of the explosives loading section of the holder, explosives formed within the explosives loading section so that the central portion on the hard disk side is recessed, and an ignition device that ignites the explosives.

The invention discloses an intelligent blasting sequence control system for mixed loading explosives, which is provided with a data acquisition module, a data preprocessing module, a model construction module, a parameter optimization module, a multi-target control module and a data storage module to intelligently control the blasting sequence of the mixed loading explosives. Distance attenuation features, delay features, topographic features and blasting energy features of blasting data are constructed, the blasting prediction model is updated and iterated based on a neural network algorithm and historical blasting data information, and the performance of the blasting prediction model is evaluated. The number of hidden layers and the number of nodes in the blasting prediction model are updated and optimized through a control variable method, the blasting prediction model is optimized, when mixed explosive is adjusted and the blasting sequence is optimized, the optimal mixed explosive composition is searched through a search optimization algorithm, and the optimal mixed explosive composition is obtained through control signals in combination with real-time blasting data information. And the blasting sequence and delay are dynamically adjusted, so that the blasting of the mixed explosive is intelligently and accurately controlled in real time.

The invention discloses a mixed emulsion explosive one-key production control method and system, and relates to the field of automatic and intelligent control. By means of automatic and intelligent control means, the problems of low efficiency, high cost, quality fluctuation, process uncertainty and the like in traditional mixed emulsion explosive production are solved, accurate feeding of raw materials is achieved through a quality sensor array and a PID control algorithm, and the production efficiency is improved. The stability of production parameters is ensured through multi-sensor data fusion and an advanced control algorithm, so that the consistency of product quality is improved; meanwhile, a feedback control loop and a continuous learning mechanism are established, closed-loop control in the production process is achieved, technological parameters are optimized, the production stability and reliability are ensured, the production efficiency and the product quality are remarkably improved, and the labor cost is reduced.

The invention discloses a method and a system for predicting the lumpiness of open-air throwing blasting, and relates to the technical field of rock blasting engineering. The invention discloses a new calculation relation about a lumpiness similarity proportion, relates to the technical field of open-air loose blasting mining, and can predict blasting lumpiness of projects such as mines, tunnels and the like by scaling a lumpiness distribution proportion. The method comprises the following steps: firstly, acquiring a rock sample from a blasting site, measuring parameters such as rock density and fracture toughness, and acquiring blasting parameter information of a to-be-blasted area; and then, a numerical simulation model under an open-air throwing blasting similar material is constructed by using a numerical simulation method, the change rule of blasting fragmentation lumpiness along with explosive unit consumption in a scale model test is studied, and the blasting lumpiness in a field blasting area is predicted according to the blasting lumpiness similarity ratio. According to the method, the change rule along with the unit consumption of the explosive is analyzed, the utilization rate of crushing energy of the explosive in surface blasting engineering is improved, reference is provided for blasting lumpiness control, and prediction of field blasting lumpiness before blasting is achieved.

An explosive downhole tool includes a housing having an upper housing part on one side of a window section and a lower housing part on an opposite side of the window section. An explosive charge is provided within the housing for cutting or expanding the wall of the tubular. The majority of outer surface of at least one of the upper and lower housing part in cross-section is rounded so as to be devoid of corners. The rounded surface eliminates the presence of sharp corners that may catch on restrictions or protrusions in a wellbore so that the downhole tool is more easily conveyable within a wellbore. Another explosive downhole tool includes fins extending from the housing. The fins have a height that decreases in a direction away from the housing. The shape of the fins enables the downhole tool to be more easily conveyable within the wellbore.

The invention relates to the technical field of high-concentration chemical wastewater treatment of explosives and powders, and particularly discloses anti-blocking treatment equipment for high-concentration chemical wastewater treatment of explosives and powders. One end of a filter pipe is fixedly connected with a water inlet pipe, and the other end of the filter pipe is fixedly connected with a water outlet pipe; the ends, away from the filter pipe, of the water inlet pipe and the water outlet pipe are fixedly connected with net plates. The anti-blocking treatment equipment for treating high-concentration chemical wastewater of explosives and powders is provided with an intercepting part, and when a baffle intercepts impurities for a long time to cause blockage of meshes, the impact force of wastewater passing through the baffle is weakened and is smaller than the tensile force of a first spring, the first spring pulls a connecting frame to move towards the baffle; the connecting frame drives the ejector rod to penetrate into the meshes of the baffle through the sliding rod, impurities blocked in the meshes are ejected out, the filtering function of the baffle is recovered, quick response can be achieved in the early stage of blocking, the problems of treatment efficiency reduction, unsmooth water flow, even equipment failure and the like caused by impurity accumulation are solved, and the anti-blocking performance of equipment is improved.

The invention relates to the technical field of emulsion explosive packaging, in particular to a multi-specification emulsion explosive off-line loading system which comprises a conveying mechanism, a stacking mechanism, a discharging mechanism and a boxing mechanism, and the stacking mechanism, the discharging mechanism and the boxing mechanism are arranged at the output end of the conveying mechanism. The stacking mechanism comprises a bearing assembly, a stacking frame assembly arranged on the bearing assembly and a power assembly arranged on the bearing assembly and used for driving the stacking frame assembly to change the state. The two elastic toothed plates can be automatically unfolded, the opening directions of the two elastic toothed plates are adjusted, emulsion explosives are stably received for boxing, discharging is gentle, the emulsion explosives are stacked layer by layer at intervals for stable transportation, products are prevented from being extruded and broken, and the problems that in the emulsion explosive boxing and transporting process, the products are stacked layer by layer, and the product quality is poor are solved. And the safety is relatively low.

The present disclosure relates to shaped charge. The shaped charge includes an explosive component having a first density and a first mechanical strength. The shaped charge also includes a liner member having a second density and a second mechanical strength. Further, the shaped charge includes an intervening liner member having a third density and a third mechanical strength. The intervening liner member is disposed between the explosive component and the liner member. The intervening liner member has one or both of: the third density being between the first density and the second density; and the third mechanical strength being between the first mechanical strength and the second mechanical strength.

The invention discloses a strip mine blasting numerical simulation analysis method based on an RHT constitutive model, and the method comprises the following steps: S1, building a strip mine blasting model: building a three-dimensional model through ANSYS software according to the actual geological conditions and blasting design requirements of a strip mine, and determining the geometric dimension of the model, the arrangement of blast holes, and the parameters of a charging structure; s2, determining material parameters: performing sampling and physical and mechanical property testing on field rocks of the strip mine to obtain rock parameters, determining rock material parameters in combination with an RHT constitutive model, determining explosive material parameters according to types of explosives used on site, and determining parameters of other related materials such as air and filling materials. According to the method, the RHT constitutive model is adopted, so that the accuracy of numerical simulation is improved; a more reliable basis is provided for blasting engineering design; the method has obvious economic benefits and social benefits; and powerful technical support is provided for the development of the strip mine blasting technology.

The invention discloses an integrated oil phase emulsion explosive and a preparation method thereof. The emulsion explosive is prepared from the following raw materials: a water-phase component, an oil-phase component and an emulsifier for emulsifying the water-phase component and the oil-phase component, wherein the water-phase component contains a modified oxidant formed by loading a nitrate oxidant component on p-aminophenyl POSS (Polyhedral Oligomeric Silsesquioxane); the preparation process of the modified oxidizing agent comprises the following steps: A, fully dispersing a nitrate oxidizing agent component and p-aminophenyl POSS in an aqueous solution, so that the nitrate oxidizing agent component is fully attached to the p-aminophenyl POSS; and B, separating a solid-phase component, namely the modified oxidant, from the solution system obtained in the step B. According to the integrated oil phase emulsion explosive and the preparation method thereof provided by the invention, the sensitivity and the power can be well considered.

The invention discloses a coal mine deep hole blasting charging device and charging method, and belongs to the technical field of coal mine deep hole blasting, the coal mine deep hole blasting charging device comprises a charging pipe and a plurality of explosive blocking arms, the inner wall of the charging pipe is connected with a detonating cord mounting pipe and a plurality of rotating rod mounting pipes, and rotating rods are rotationally mounted in the rotating rod mounting pipes; a blocking arm mounting notch is formed in the side wall of the rotating rod mounting pipe; the explosive blocking arm is connected with the rotating rod and can be driven by the rotating rod to rotate in the blocking arm mounting notch; the explosive blocking arm is of an arc-shaped structure matched with the inner wall of the explosive charging pipe. During use, a detonating cord is placed in the detonating cord mounting pipe, and the charging pipe is placed in a drill hole; the explosive charge is loaded into the charge tube, and the operation rotating rod is rotated to drive the explosive blocking arm to rotate, so that the explosive blocking arm blocks and supports the explosive charge, and air interval charge is realized. The explosive charging pipe provides a smooth explosive charging path space for the explosive packages, and high efficiency and safety of explosive charging are achieved; the interval of explosives can be accurately controlled, displacement of explosive packages is avoided, the blasting effect is guaranteed, and potential safety hazards are avoided.

The application provides a torpedo anchor and a use method thereof, and relates to the technical field of anchoring equipment. The torpedo anchor comprises an anchor body, an anchor head, an inflatable air bag and an electric control igniter. The anchor body comprises a plurality of sub-anchor bodies which are sequentially nested. The top plates of any two sub-anchor bodies nested with each other have an accommodating space therebetween. The anchor head is fixedly connected with the bottom of the innermost sub-anchor body. The inflatable air bag is used for placing an explosive agent. The accommodating space is provided with the inflatable air bag. The electric control igniter is used for igniting the explosive agent. The length of the torpedo anchor after penetrating into the stratum is lengthened by using the air bag inflation impact method, so as to increase the contact area and friction force of the torpedo anchor and the stratum, and significantly improve the pullout bearing capacity of the torpedo anchor. The cooperation structure of each sub-anchor body in the application is simple and has high stability, and does not need a complex mechanical structure. Therefore, the torpedo anchor still has good stability on the premise of realizing the stretching of the torpedo anchor in the bottom layer.

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 discloses an underground mine upward vertical blast hole explosive charging and blast hole filling system and method, and relates to the technical field of mine blasting, the system comprises a mobile vehicle body, a vehicle-mounted intelligent control unit, a visual positioning device, an explosive conveying mechanism, an automatic explosive charging execution mechanism and an intelligent filling device; a visual positioning device obtains a blast hole opening image, and blast hole space coordinates are calculated based on the blast hole opening image; an explosive conveying planning path is determined according to the blast hole space coordinates; the explosive conveying mechanism is provided with a multi-degree-of-freedom working arm or a vacuum adsorption mechanical arm for grabbing explosives, and the explosives are conveyed into a target blast hole through an inertia compensation pipeline. The automatic charging executing mechanism comprises a programmable explosive feeding mechanical arm, and when the charging action is executed, an explosive feeding speed curve is set according to the depth parameters of the blast hole; and the intelligent filling device is used for filling blast hole filling materials. According to the invention, safe and intelligent charging and blast hole filling operation of the upward vertical blast hole in underground mine blasting operation are realized.

Disclosed herein is a perforating system including a perforating gun and, more particularly, disclosed are methods and apparatuses using a conical perforating assembly. In one aspect, embodiments relate to a perforating assembly, that includes a charge carrier, a liner disposed in the charge carrier, and an explosive charge disposed between the charge carrier and the liner and supported on the charge carrier, where the liner is supported on the explosive charge, where the perforating assembly has an asymmetric profile.

The emulsion explosive stacker crane with the detection function comprises a sliding base and a clamp mechanism, the clamp mechanism comprises a mounting base and a clamping arm assembly, and the clamping arm assembly comprises a sliding plate, a clamping plate and a pose detection part. The sliding plate is connected to the mounting base through the clamping driving part, and the clamping driving part drives the sliding plate to slide in the X-Z plane; the two clamping plates are symmetrically arranged, the two clamping plates are connected to the sliding plate through side position adjusting driving parts, and the side position adjusting driving parts drive the clamping plates to slide in the Y-axis direction; the pose detection parts are connected to the sliding plate, each clamping plate is correspondingly provided with one group of pose detection parts, and the pose detection parts are used for detecting the height of the corresponding position of the upper end face of the clamped material and feeding back the height of the position as a displacement stroke; and the height of one side, corresponding to the two side positions, of the clamped material is adjusted to a proper position by driving the sliding plate to slide. The stacking stability can be improved, and meanwhile the stacking operation efficiency can be 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 invention discloses an explosion source mounting device for an underwater icebreaking test, and belongs to the technical field of underwater explosion tests. The device is composed of an on-ice fixing assembly, a first telescopic rod assembly, a second telescopic rod assembly, a 90-degree rotating assembly and an explosive fixing structure. The on-ice fixing assembly is connected with the first telescopic rod through a clamping structure, the two telescopic rods are connected through a 90-degree rotating assembly comprising a transmission screw, a supporting bearing and a transmission shaft system, and accurate angle adjustment of the second telescopic rod is achieved in cooperation with the limiting supporting structure. Wherein the transmission screw and the supporting bearing are fixed to form a rotational degree of freedom, the transmission rod is driven to move through thread linkage, and 90-degree directional rotation of the second telescopic rod is achieved through multi-shafting transmission. According to the invention, the problems of difficult installation and positioning deviation in a complex ice surface environment are solved, and the operability of an underwater explosion icebreaking test and the credibility of a test result are improved.

The invention discloses an explosive production wastewater pretreatment device and relates to the technical field of wastewater treatment.The explosive production wastewater pretreatment device comprises a flotation tank and a control device, a partition plate is arranged in the flotation tank and divides the interior of the flotation tank into a reaction area and a flotation area, a partition block is arranged in the flotation tank, and the partition block and the inner surface of the side, away from the partition plate, of the flotation tank form a slag receiving area; the conveying mechanism is used for conveying wastewater and additives to the reaction area; the exhaust mechanism is used for discharging small bubbles into the flotation area; the scum scraping mechanism is used for discharging floating scum floating from the flotation area to the scum receiving area; and the cleaning mechanism is used for cleaning the scum attached to the scum scraping mechanism. Through the arrangement of the cleaning mechanism, after the scum scraping mechanism scrapes scum of the flotation area to the scum receiving area, the cleaning plate in the cleaning mechanism can automatically clean scum attached to the surface of the scum scraping soft plate in the scum scraping mechanism, and the scum attached to the surface of the scum scraping soft plate is prevented from entering the flotation area again; and the wastewater treatment effect of the device is improved.

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.

An explosive fragmentation structure includes a fragment enhancing insensitive munitions (IM) liner. The IM liner includes a patterned metal structure having openings therethrough embedded in a compressible material to define a desired fragmentation pattern of the outer metal casing upon detonation of the explosive. The IM layer is positioned between and in conformal contact with the outer metal casing's inner surface and the explosive's outer surface.

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 relates to the technical field of explosive response characteristic tests, in particular to a test device and method for testing explosive response characteristics. The test device comprises a shell unit and a loading unit. The shell unit comprises a driving restraining cylinder, a first restraining cylinder and a second restraining cylinder which are coaxially arranged. And an accelerating cavity is formed in the first restraining cylinder. The driving restraining cylinder is located at one end of the first restraining cylinder. And the driving constraint cylinder is used for loading main explosives. The second restraining cylinder is located at the end, away from the driving restraining cylinder, of the first restraining cylinder. The two ends of the second restraining cylinder are open. And a loading cavity for loading to-be-tested explosives is formed in the second constraint cylinder. And an annular positioning part is arranged in the second restraining cylinder. Two end openings of the second restraining cylinder penetrate through the center of the positioning part. The loading cavity is located on the side, facing the first restraining cylinder, of the positioning part. And the loading unit slides in the accelerating cavity. Therefore, the problem that the shear loading sensitivity test of various explosives in the prior art is difficult to provide enough shear speed in a small space is solved.

The present disclosure relates to a shaped charge. The shaped charge includes an explosive component and a liner member coupled to the explosive component. The explosive component and the liner member emit a perforating jet based on ignition of the explosive component. The liner member has a planar symmetric portion that is planar symmetric along an axial length of the planar symmetric portion relative to planes perpendicular to a direction of the emitted perforating jet.

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.

A composite oil phase and composite emulsion matrix for site-mixed emulsion explosive and preparation methods therefor. The composite oil phase is divided into material A and material B, wherein in the material A, a high-viscosity polyisobutylene maleic anhydride amine esterification derivative is used as a primary emulsifier to increase the strength and thickness of an emulsification film of an emulsion matrix, thereby improving the stability of the emulsion matrix; in the material B, a low-viscosity polyisobutylene maleic anhydride amine esterification derivative and SP-80 are used as primary emulsifiers to regulate the ammonium nitrate dissolution rate of the emulsion matrix, thereby improving the sensitization characteristic of the emulsion matrix; and the emulsion matrix prepared from two composite oil phases can effectively improve the water resistance of the emulsion matrix while the problems of high-temperature over-sensitization and low-temperature insensitivity are solved, so that the explosion quality is guaranteed.

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 relates to a fluorine-containing polymer of a specific mononitroalkylbenzene aromatic hydrocarbon explosive tracer as well as a preparation method and application of the fluorine-containing polymer, and belongs to the technical field of fluorescent probes. The method specifically comprises the step of synthesizing a polymer with fluorine atoms as a solid fluorescence sensor probe. The probe realizes the detection of explosives through the interaction between fluorine atoms and nitryl and by doping CdSe / ZnS quantum dots. Based on the fluorine-containing polymer, aromatic alkyl hydrocarbon explosives (tracers) containing a single nitro group can be specifically recognized. Quantum dots are blended with the fluorine polymer, the quantum dots as a nano material are mixed and dispersed with the polymer to form a nanofiber membrane, and the fluorescence of the fluorine-containing quantum dot polymer is changed by further utilizing the interaction between fluorine and silicon atoms and nitro aromatic hydrocarbon, so that the fluorescence of the fluorine-containing quantum dot polymer is changed. Therefore, the specific detection-fluorescence rise of the mononitroalkane explosive is realized (fluorescence decline caused by interference such as light blocking is avoided).

Emulsion explosives with gas bubbles that are resistant to in-borehole migration or coalescence are disclosed herein. Such emulsions can be sensitized by mechanically-introducing gas bubbles into the emulsion. Resistance to gas bubble migration and coalescence can be achieved by homogenization, without the need for bubble stabilization agents.

A linear shaped charged Electro-Explosive (LSCe) Device includes an initiator in direct and intimate contact with an exposed portion of the LSC's main charge. In different configurations, the initiator's package, initiation charge or initiation circuit (acting over a gap) are in direct and intimate contact with the main charge. The LSCe device may be manufactured by connecting a packaged initiator to an opening in the LSC housing through which a portion of the main charge is exposed or by forming the initiator in situ in a receptacle coupled to the housing around the opening. The LSCe device can be used for such applications as thrust or mechanical termination of an airframe, cable cutting or initiation of a LSC.