1886 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.

The invention discloses a parabola type explosion action and static action dual-energy-gathering device and a blasting method, and relates to the technical fields of directional fracture control blasting, building demolition and the like in mine and tunnel engineering. The device comprises a main body pipe which is a hollow tubular circular ring body and forms a closed channel along the annular direction; the energy-gathered jet flow groove is formed in the outer side wall of the main body pipe and distributed in the axial direction, the cross section contour of the energy-gathered jet flow groove is in a parabola shape, and the energy-gathered jet flow groove is used for guiding explosion stress waves to be intensively propagated and released in the preset direction; the energy gathering seam is formed in the bottom of the energy gathering jet flow groove and penetrates through the inner wall of the main body pipe; and the explosive loading cavity is used for fixedly placing explosives. By combining the dual energy gathering principle of explosion action and static action, energy is concentrated in the energy gathering direction in the explosion process, so that explosion energy is accurately released along a parabola-shaped track, the explosion wave focusing effect is enhanced conveniently, and invalid energy loss is reduced.

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 utility model discloses a static emulsification integrated device for M-type emulsion explosives. The static emulsification integrated device is formed by connecting and combining a water phase tank (12), an oil phase tank (13), a water phase delivery pump (14), an oil phase delivery pump (15), two mass flowmeters (16), a venturi tube (17) and a multi-stage jet flow static emulsifier (G), the multi-stage jet flow static emulsifier (G) is formed by combining an SK type static mixing pipe (1), an SK type static mixing unit (2), a first jet flow perforated plate (3), a jet flow emulsifying pipe (4), a forward spiral blade (5), a second jet flow perforated plate (6), a diaphragm type pressure gauge (7), a reverse spiral blade (8), an SV type uniform emulsion mixing pipe (9), an SV type uniform emulsion mixing unit (10) and a pressure relief pipe (11). The device disclosed by the utility model integrates SK type static mixing, multi-stage jet emulsification and SV type uniform emulsion mixing, and has the characteristics of good emulsification effect, high productivity, stable product quality, constant working pressure, high production line safety and excellent product performance index.

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

The invention discloses a process for preparing a high-strength and high-toughness metal material with a multi-scale gradient composite structure through explosive processing, and relates to the field of high-strength and high-toughness metal material processes, the process comprises the following steps: 1, preparing a sand base, a base plate, a cover plate and an explosive, and polishing the outer surfaces of the base plate and the cover plate; the supporting object is placed at the top end of the base plate, the covering plate is placed at the top end of the supporting object, the explosive is placed on the covering plate, and the composite plate with a good metallurgical bonding interface can still be prepared by adjusting the detonation velocity of the explosive and the interval between the plates under the conditions that the tensile strength of the base plate of the welding plate reaches up to 1.4 GPa and the fracture strain of the covering plate is higher than 25%. In addition, by increasing the detonation velocity, the composite plate material is subjected to surface hardening, a grain size gradient layer is generated on the surface of the material, the explosive hardening and explosive welding machining processes are optimized, and meanwhile one-time forming of machining of the high-strength multi-scale gradient structure composite metal plate is achieved.

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 invention discloses an explosive granulation system based on nitrogen circulation, the explosive granulation system comprises an enclosed hood, a granulation main machine, a material receiving device and a conveying device, the output end of the granulation main machine, the material receiving device and the conveying device are all located in the enclosed hood, and an oxygen sensor is arranged in the enclosed hood; an air inlet and an air outlet are formed in the closed cover, the air outlet is sequentially communicated with the first wind power supply device, the condenser, the first heater, the second wind power supply device and the air inlet, an outlet of the nitrogen cylinder is further communicated between the condenser and the first heater, and the air inlet and the air outlet are provided with a first temperature sensor and a second temperature sensor respectively. According to the invention, the nitrogen in the nitrogen cylinder can be heated by the first heater and then supplied into the enclosed hood by the second wind power supply device, so that ethyl acetate in the enclosed hood is absorbed and supplied to the condenser by the first wind power supply device, and the ethyl acetate carried by the nitrogen is condensed and recovered; further, ethyl acetate is removed in the press-fitting explosive granulation process.

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.

A lifting and discharging system of an industrial explosive and product production line comprises a lifting device and a separated discharging device, the lifting device comprises a tray conveyor (1), a grabbing rack (2) and a pair of lifting mechanisms, and each lifting mechanism comprises a transverse moving sliding table (3), a lifting air cylinder (4) and a grabbing die head (5); the seismic explosive column grabbing device has the advantages that seismic explosive columns on a charging tray can be grabbed in batches, an outer ring is grabbed firstly, then an inner ring is grabbed, the grabbing speed is high, and the labor intensity of workers is relieved. The seismic explosive columns are automatically arranged at intervals under the action of gravity when being discharged through the outer ring discharge chute and the inner ring discharge chute, and are sequentially arranged at equal intervals when entering the feed port of the interval conveyor.

Disclosed in the present invention are a multifunctional drilling and blasting integrated jumbo apparatus, and a method. The apparatus comprises a steel arch frame, and a plurality of crawler mechanisms driven by motors and connected to the bottom of the steel arch frame. Further comprised is a plurality of drilling and explosive conveying apparatuses, each comprises a guide rod arranged in parallel with an upper cross beam, wherein the two ends of each guide rod are connected with guide rod wheels. Each guide rod is connected to a drill rod groove by means of a bearing. A main arm is hinged in each drill rod groove. An auxiliary arm is hinged to the end part of each main arm. A variable-amplitude oil cylinder is hinged between each main arm and each auxiliary arm. A supporting platform is hinged to the end part of each auxiliary arm. A variable-amplitude oil cylinder is further hinged between each supporting platform and each auxiliary arm. Each supporting platform is connected to a drilling apparatus and an explosive-mounting apparatus. On the basis of using a drilling and blasting jumbo, the present invention innovatively uses automatic drilling, mechanical explosive conveying, and an automatic management and control system, thus preventing existing problems of low tunneling working efficiency, low automation degree, poor safety, poor operation environment, dust and other health hazards to personnel.

A lifting, discharging and tray loading production line of an industrial explosive and product production line comprises a lifting device, a separated discharging device and a tray loading device, the lifting device comprises a tray conveyor (1), a grabbing rack (2) and a pair of lifting mechanisms, and each lifting mechanism comprises a transverse moving sliding table (3), a lifting air cylinder (4) and a grabbing die head (5); the seismic explosive column grabbing device has the advantages that seismic explosive columns on a charging tray can be grabbed in batches, an outer ring is grabbed firstly, then an inner ring is grabbed, the grabbing speed is high, and the labor intensity of workers is relieved. The seismic explosive columns are automatically arranged at intervals under the action of gravity when being discharged through the outer ring discharge chute and the inner ring discharge chute, and are sequentially arranged at equal intervals when entering the feed port of the interval conveyor.

An automatic tray loading system for an industrial explosive and product production line comprises a lifting and discharging device and a tray loading device, the lifting and discharging device comprises a tray conveyor (1), a grabbing rack (2) and a pair of lifting mechanisms, and each lifting mechanism comprises a transverse moving sliding table (3), a lifting air cylinder (4) and a grabbing die head (5); the seismic explosive column grabbing device has the advantages that seismic explosive columns on a charging tray can be grabbed in batches, an outer ring is grabbed firstly, then an inner ring is grabbed, the grabbing speed is high, and the labor intensity of workers is relieved. And the seismic explosive column shells are automatically placed in the seismic explosive column feeding disc, the disc loading speed is high, and the labor intensity of workers is relieved.

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 on-site mixed water-gel explosive which comprises the following components in percentage by weight: 45-70% of ammonium nitrate; 9%-15% of water; 10-20% of calcium nitrate; 7-20% of liquid fuel; 0-10% of an auxiliary combustible agent; 0.7%-1.0% of a gelling agent; 0.2%-0.5% of an additive; 0.02%-8% of a sensitizing agent; 1-3% of a cross-linking agent; the density range of the explosive is 0.3-1.25 g / cm < 3 >, and the adjusting range is wide; the detonation velocity of the explosive is 2000-4500 m / s, and the explosive is high in matching degree with medium soft rock; the explosive has good water resistance and is suitable for charging of wet holes, water holes and slurry holes; the production raw materials of the explosive do not contain high-energy materials, and the prepared thickening mother liquor and semi-finished products have the characteristics of good stability, long storage life, high transportation safety and high intrinsic safety.

The invention relates to the technical field of explosive detection, in particular to a latex explosive water phase solution and water content rapid detection system which comprises a refractive index detection module, a near infrared spectrum detection module, a production line monitoring module, a data processing module and a data fusion module. The near infrared spectrum detection module is used for collecting the detection moisture content of a water-phase solution, and the production line monitoring module is used for collecting process parameters. According to the method, by calculating the comprehensive index of the water phase solution, interference possibly generated among the water content, the solute concentration and the technological parameter change is effectively solved, parameter regulation and control in the production link are more accurate, whether the production technology of the latex explosive deviates from the target range or not can be judged by comparing the comprehensive index with the index threshold value, and the method is suitable for popularization and application. The system is helped to find abnormal production in time, and accidents or quality problems caused by process fluctuation are prevented.

The invention discloses a post-combustion effect simulation method introducing chemical reaction analysis. The post-combustion effect simulation method comprises the steps that detonation energy, detonation products, mass fraction and related thermodynamic parameters are obtained according to the detonation process of explosives; obtaining an energy release parameter containing a chemical reaction source item; establishing a combustion analysis and calculation model introduced with a chemical reaction source item after the explosion of the closed space; solving the initial temperature and initial pressure of the equivalent gas mass of the explosive; inputting related parameters into a combustion analysis and calculation model after explosion in a closed space in which chemical reaction is introduced, and solving to obtain an energy release rate; and the specific heat energy of the post-combustion effect is obtained through calculation, the JWL state equation is modified, and the implosion response of the closed space considering the post-combustion effect is simulated. The method has the advantages that the calculation model including the chemical reaction source item is introduced, the explosive initiation process can be accurately and effectively simulated, the post-combustion reaction starting and ending time and the energy release rate are obtained, and the simulation result is accurate.

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