Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

315 results about "Gunpowder" patented technology

Gunpowder, also known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur (S), charcoal (C), and potassium nitrate (saltpeter, KNO₃). The sulfur and charcoal act as fuels while the saltpeter is an oxidizer. Because of its incendiary properties and the amount of heat and gas volume that it generates, gunpowder has been widely used as a propellant in firearms, artillery, rockets, and fireworks, and as a blasting powder in quarrying, mining, and road building.

Suppressor for a firearm

A firearm suppressor with a simple, light, easy-to-manufacture and easy-to clean is provided. In the device and solution provided, the propellant gas is not stopped inside the suppressor but directed to flow in a controlled manner through the suppressor and out of the suppressor. This significantly reduces the heating of the suppressor, the fouling of the firearm by propellant gases and gunpowder firing residues. Moreover, the solution reduces contact of the propellant gases with the shooter's face.
Owner:SILENT STEEL OY

Split type plasma ignition device and ignition system for passivating agent

The invention relates to the technical field of plasma ignition, in particular to a split type plasma ignition device and ignition system for passivating gunpowder, which comprises an ignition tube assembly and an oscillation control assembly, the ignition tube assembly comprises an ignition tube, gunpowder and a hollow resonance coil; the oscillation control assembly comprises a coil support, an excitation coil and an oscillator circuit module. The excitation coil on the coil support is used for being matched with an insulation tube in an ignition tube in an inserted mode. An ignition pulse excites an oscillator circuit module to generate a high-frequency excitation signal, the high-frequency excitation signal is released by an excitation coil and coupled to a hollow resonance coil in an electromagnetic induction mode to form LC resonance, the LC resonance enables a discharge part to generate a high-intensity electric field, the high-intensity electric field excites plasmas on the surface of gunpowder to ignite the gunpowder, and ignition is completed. The device breaks through multiple limitations of a traditional ignition mode, and intrinsic safety and high reliability of passivation agent ignition are achieved.
Owner:XIDIAN UNIV

Firework product convenient for realizing subtitle firework effect

The invention discloses a firework product convenient for realizing subtitle firework effect, which comprises a flexible or rigid base material, the base material is provided with a plane structure for fixing or storing pyrotechnic composition powder, and the pyrotechnic composition powder is attached to the plane structure of the base material according to set patterns or characters; the firework further comprises a fire transferring piece, the fire transferring piece is selected from a combustible base material or a firework lead, and the firework lead is distributed along the pyrotechnic composition powder attached to the base material. The pyrotechnic composition powder is one of firework powder; or one of titanium, iron, zirconium, aluminum, magnesium metal or metal oxide powder; or a mixture of more than two of the various powders. A firework visual effect with a preset subtitle pattern can be generated; the device has the advantages of simplicity in preparation, small size and convenience in use.
Owner:卜海云

Double-layer vacuum interlayer high-temperature-resistant perforating gun

The invention belongs to the technical field of perforating guns, and discloses a double-layer vacuum interlayer high-temperature-resistant perforating gun which comprises an external pressure-resistant gun body and an internal bullet carrier, a bullet carrier detonator bin is arranged on the inner side of the bullet carrier, and a plurality of perforating bullet containing grooves are evenly formed in the outer end of the bullet carrier in a staggered mode. Perforating bullets are arranged at the outer end of the bullet carrier through the perforating bullet containing grooves correspondingly, and a detonating cord is arranged on the outer wall of the bullet carrier; according to the perforating gun, through the double-layer design of the gun body of the perforating gun, the gun carrier, the gun carrier detonator bin, the detonating cord, the transmission cable and the multiple perforating bullets on the inner side of the perforating gun are matched, perforating work on the inner wall of a shaft can be achieved, the high-temperature environment in the shaft can be effectively adapted, and the heat insulation effect is achieved; therefore, the phenomenon that gunpowder in the perforating bullet melts and loses efficacy is avoided, complete percussion and burning explosion of the perforating bullet can be guaranteed, the perforating rate and the performance of the perforating gun are improved, and the ideal value under perforating work is achieved.
Owner:XIAN RUITONG ENERGY TECH

Firework charging device

The utility model relates to the field of firework production, in particular to a firework charging device. The technical problems that when an existing charging device carries out charging, the explosive amount is inconvenient to control, then the charging efficiency is low, gunpowder is inconvenient to compact after charging is completed, and then the effect after charging is poor are solved. A firework charging device comprises a base, a placing seat is connected to the base in a sliding mode, a plurality of clamping grooves are formed in the body of the placing seat, a fixing plate is fixedly connected to the base, a hopper is fixedly connected to the fixing plate, and an electric push rod is fixedly connected to one side of the hopper. When the flashboard reciprocates, the flashboard can drive the connecting plate and the extrusion plate to move, the extrusion plate moves to extrude the protrusions on the waved plate, the placing base moves up and down to generate vibration, then the placing base drives the paper tube to vibrate together, gunpowder in the paper tube is compacted through vibration, and therefore the filling effect is further enhanced.
Owner:WANZAI COUNTY QIONGFENG FIREWORKS MANUFACTURING CO LTD

Multi-stage pulse high-frequency dynamic load fracturing method

A multistage pulse high-frequency dynamic load fracturing method comprises the steps that a coal seam and a cover layer horizontal well are drilled out, supercritical CO2 is used for fracturing an upper cover layer of the coal seam, and fracturing cracks are expanded to a target coal seam to form a crack network; injecting high-pressure oxygen into the horizontal well of the cover layer, and enabling the high-pressure oxygen to enter the low-permeability target coal seam to form an oxygen-enriched coal seam; tripping in a bridge plug; operation gas and fuel are charged into the burning and explosion tool, the burning and explosion tool is lowered, and the packer is set; high-pressure nitrogen is used for pushing a piston to move downwards, a constant pressure valve is opened, and a gaseous combustion improver enters a combustion explosion cavity to be mixed with a liquid alkyl compound; the piston is used for pushing the trigger needle to move downwards, so that the trigger linkage rod relieves limiting of the firing pin, the firing pin rapidly strikes gunpowder, and ignition operation is completed. The liquid alkyl compound is quickly burnt and exploded, potassium permanganate in the detachable hollow pipe is decomposed to generate a large amount of oxygen, and methane-oxygen mixed gas in a gap network is ignited while secondary burning and explosion occur. The method can obviously improve the mining efficiency of the coal bed gas.
Owner:CHINA UNIV OF MINING & TECH

Pressure sensor performance testing device and method for gunpowder vacuum stability test

The invention provides a device and a method for testing the performance of a pressure sensor for a vacuum stability test of explosives and powders, the device comprises a box body, an inert gas chamber and a corrosive gas chamber are arranged in the box body, and the top end of the corrosive gas chamber is provided with a to-be-detected pressure sensor; a balance pipe is arranged between the bottom end of the inert gas chamber and the bottom end of the corrosive gas chamber, and isolation liquid is contained in the balance pipe and is mercury or tetradecahydrophenanthrene perfluoride. The two ends of the balance pipe are communicated with the inert gas chamber and the corrosive gas chamber respectively, and an inert gas control valve and a corrosive gas control valve are arranged at the communication position. According to the invention, the isolation liquid freely moves in the balance pipe without height difference to realize pressure adjustment, an organic film cutting piece of an existing device is replaced, and high-temperature resistance and corrosion resistance testing and examination of the high-precision pressure sensor can be rapidly, accurately and conveniently realized.
Owner:XIAN MODERN CHEM RES INST

Detection method of surface defects of gunpowder column based on large language model and 3D Gaussian sputtering

The present invention relates to a technique for detecting apparent defects in powder columns, specifically a method for detecting apparent defects in powder columns based on a large language model and 3D Gaussian sputtering. The method is implemented using the following steps: Step 1: Acquire multi-view images of the powder column; Step 2: Generate visual features; Step 3: Generate language embedding tags; Step 4: Generate text features; Step 5: Generate feature map A; Step 6: Generate a Gaussian parameter set; Step 7: Generate feature map B; Step 8: Generate a multi-layer feature map; Step 9: Generate a feature pyramid with rich multi-scale information; Step 10: Generate bounding box information of the apparent defects in the powder column; Step 11: Output a bounding box prediction result of the apparent defects in the powder column. The present invention effectively solves the problems of poor detection accuracy and poor detection comprehensiveness of existing methods for detecting apparent defects in powder columns, and is suitable for detecting apparent defects in powder columns.
Owner:ZHONGBEI UNIV

Automatic charging device for firework and cracker production

The utility model relates to the field of firework production, in particular to an automatic charging device for firework and cracker production. The technical problems that an existing firework gunpowder filling device is difficult to clamp firework cylinders with different diameters, and gunpowder is prone to blocking in the filling process are solved. An automatic charging device for firework and cracker production comprises a base. An electric sliding rail is fixedly connected to the base, two sliding blocks are connected to the electric sliding rail in a sliding mode, a containing disc is connected between the two sliding blocks, a plurality of firework cylinder containing grooves are formed in the containing disc, and two sleeve rods can be squeezed by limiting rods, so that two clamping rods can move in the direction close to each other; and if the diameter of the firework cylinder is large, the firework cylinder can extrude the clamping rods, so that the clamping rods can stretch into the sleeve rod, the pressure spring is compressed, the firework cylinders with different diameters can be fixed in the filling process, and the applicability of the device is improved.
Owner:JIANGXI PROVINCE WANZAI COUNTY NANTIAN FIREWORKS & FIRECRACKERS MANUFACTURING CO LTD

Parallel counter-rotating double-screw structure for gunpowder processing

The invention discloses a parallel counter-rotating double-screw structure for gunpowder processing, which is composed of two screws which are arranged in parallel and have opposite thread directions, and the thread arrangement structures of the two screws are consistent; each screw sequentially comprises a screw head, a feeding section, a mixing and shearing section, an exhaust section and a metering section from front to back, the depths of screw grooves of all threaded sections are consistent, the screw head is of a conical structure, the length of the screw head is 0.5 times of the diameter of the screw, the length of the feeding section is 4-6 times of the diameter of the screw, and the metering section is of a conical structure. The mixing shearing section is composed of a front shearing section and a rear shearing section with different screw pitches, the total length of the mixing shearing section is 4-7 times of the diameter of the screw rod, the length of the exhaust section is 2-4 times of the diameter of the screw rod, and the length of the metering section is 3-5 times of the diameter of the screw rod. According to the parallel counter-rotating double-screw structure, stable conveying, efficient mixing and extrusion forming of high-viscosity and high-solid-content gunpowder are achieved.
Owner:SHANXI BEIFANG XINGAN CHEM IND

Low-overload thrust-adjustable launching test device

The utility model relates to a low-overload thrust-adjustable launch test device, which comprises a launch canister assembly, a thrust-adjustable thrust-adjustable launch canister assembly and a thrust-adjustable thrust-adjustable thrust-adjustable launch canister assembly, and is characterized in that the launch canister assembly comprises a cylindrical and hollow launch canister body; the inner cylinder is coaxially arranged in the launching cylinder body, the outer diameter of the front end of the inner cylinder and the outer diameter of the main body are smaller than the inner diameter of the launching cylinder body, a boss protruding outwards in the radial direction is arranged at the rear end of the front end of the inner cylinder, and the boss is slidably connected into the launching cylinder body; the rear seat assembly is installed at the rear end of the launch canister body, the rear seat assembly is provided with a first cavity used for containing gunpowder, a second cavity is formed between the front end of the rear seat assembly and the inner canister, and after the gunpowder is ignited, due to the action of gas pressure, the first cavity and the second cavity are communicated, so that the gunpowder is ignited; the volume of the second cavity is larger than that of the first cavity, the gas pressure is reduced along with increase of the volume, and therefore low-overload launching can be achieved when the inner cylinder pushes the to-be-launched projectile or the unmanned aerial vehicle.
Owner:ANHUI FANGYUAN MECHANICAL & ELECTRICAL

Lifting type gunpowder hanger

The utility model relates to the technical field of gunpowder hangers, in particular to a lifting type gunpowder hanger which comprises a bottom plate, first supporting legs are arranged on the front side of the bottom of the bottom plate in a bilateral symmetry mode, second supporting legs are arranged on the rear side of the bottom of the bottom plate in a bilateral symmetry mode, and first adjusting rods are arranged on the front side of the base surface of the bottom plate in a bilateral symmetry mode. Second adjusting rods are arranged on the rear side of the base face of the bottom plate in a bilateral symmetry mode, a fixing assembly is arranged on the gunpowder hanger, the fixing rods are pulled outwards and rotated, the fixing rods are limited through clamping blocks, the fixing rods are made to be far away from the interiors of first adjusting holes and the interiors of second adjusting holes, and the gunpowder hanger is more convenient to use. The positions of the placing frames can be adjusted by sliding the first adjusting sleeves and the second adjusting sleeves correspondingly, so that the placing frames can be adjusted to proper positions according to needs, multiple sets of placing frames can be arranged according to needs, drying is more convenient, and the whole device is simple in structure, convenient to operate and higher in practicability.
Owner:NEIJIANG TIANCE FASTENERS CO LTD

A nail shooting and propellant pressing machine

The present invention relates to the technical field of pressing gunpowder into a cartridge case, and specifically to a nail shooting gunpowder pressing machine, which includes a gunpowder pressing mechanism and a feeding and conveying mechanism. A positioning device, a pressing needle plate, and a cartridge case plate are provided at the gunpowder pressing station. The feeding and conveying mechanism transports the gunpowder plate device to the positioning device at the gunpowder pressing station. An X-axis moving device and a Y-axis moving device are also provided at the gunpowder pressing station. The X-axis moving device and the Y-axis moving device are provided with two or more drivers, and each driver respectively drives the positioning device to move one position point along the X-axis and the Y-axis of the gunpowder pressing station. The gunpowder on the gunpowder plate device is aligned with the pressing needle and the cartridge case at the gunpowder pressing station through step-by-step movement along the X-axis and the Y-axis. In this way, multiple gunpowder cartridges are arranged on the same gunpowder plate device, effectively maximizing the utilization of the space of the gunpowder plate device, reducing the number of times the gunpowder plate device is transported to the gunpowder pressing station, reducing the standby time of the equipment during the transportation of gunpowder, and improving the working efficiency of the equipment.
Owner:GUANGDONG CHAOMAI AUTOMATION TECH CO

Gas rock cracking agent and preparation method thereof

The invention discloses a fuel gas rock cracking agent and a preparation method thereof, and belongs to the technical field of gunpowder. In order to solve the technical problems of danger in reprocessing of propellant powder, low utilization rate, environmental pollution and the like, the invention provides a gas rock cracking agent which comprises the following components: 25-75% of main charge, 20-70% of performance regulator and 2-5% of curing agent, the main charge is at least one of single-base propellant powder, double-base propellant powder or three-base propellant powder, the performance regulator is at least one of ammonium nitrate, potassium nitrate, sodium nitrate and ammonium dinitramide, and the curing agent is nitrocotton. The gas rock cracking agent is stable and free of overall explosion hazard, has the characteristics of low vibration, controllable flying rocks, clean products and the like when being used for rock cracking, and can well meet rock cracking operation under sensitive environments and various special working conditions; by adopting a wet mixing process, the fire blast risk caused by friction and static electricity in the mixing process of the propellant powder and the performance regulator can be effectively reduced.
Owner:LUZHOU NORTH CHEM IND

Concentrated energy / kinetic energy series penetration structural body

The invention belongs to the technical field of deep underground target penetration, and particularly relates to an energy gathering / kinetic energy series penetration structural body which comprises a charging shell, the front end of the charging shell is provided with an opening, a shaped charge liner is arranged at the opening of the front end of the charging shell in an adhesive mode, the rear end of the charging shell is fixedly connected with a rear-stage connecting part, and the rear-stage connecting part is fixedly connected with the charging shell. The rear end of the rear-stage connecting part is connected with a rear-stage main projectile body, a charging buffer layer is arranged at the front end of an inner cavity of the rear-stage main projectile body, a rear-stage fuze is installed at the rear end of the rear-stage main projectile body, and the charging shell and the rear-stage main projectile body are both filled with gunpowder. Wide-speed-range penetration is achieved through the series connection structure, the rear-stage connecting part extends into the charging shell to be in threaded connection with the charging shell, the rear-stage connecting part is protected against damage by utilizing three-direction pressure stress generated by explosive detonation, meanwhile, the length of the rear-stage connecting part can be adjusted, the rear-stage connecting part is used for protecting a penetration projectile body structure under the condition of different penetration target-hitting speeds, and the penetration target-hitting speed is improved. And therefore, the purpose of increasing the penetration power is achieved.
Owner:ZHONGBEI UNIV

Fire extinguishing bomb for fire fighting

The utility model discloses a fire extinguishing bomb for fire fighting and belongs to the technical field of fire extinguishing bombs for fire fighting. Comprising an outer cylinder body, a storage cavity is formed in the outer cylinder body and used for storing fire extinguishing materials, a detonating barrel is detachably arranged on one side of the storage cavity, a gas detonating device is arranged in the detonating barrel and used for injecting gas into the storage cavity to enable the storage cavity to explode under high pressure, and a trigger head used for detonating the gas detonating device is arranged at the end of the outer cylinder body. According to the fire extinguishing bomb, explosion is achieved in a gas explosion mode, after the bottom of the gas cylinder is punctured through the ejector pin, gas enters the storage cavity, high pressure is instantly generated in the storage cavity, then the storage cavity explodes, gunpowder does not need to be filled, and potential safety hazards do not exist during storage and transportation.
Owner:青岛市消防救援支队 +1

Packaging device

The utility model relates to the technical field of firework production equipment, and discloses a packaging device which comprises a mounting seat, and a packaging assembly is arranged at the top of the mounting seat. According to the packaging device, a plurality of groups of through pipelines are arranged on the surface of the mold, the amount of gunpowder filled in each paper tube can be accurately controlled by filling the gunpowder in the pipelines, so that the gunpowder filling is more uniform, and when the baffle cancels the shielding of the bottom of the mold, the gunpowder falls into the combined firework paper tube, so that the filling of the combined firework paper tube is realized, and the production efficiency is improved. Manual filling and weighing are not needed, the filling efficiency of the firework cylinder is improved, the mold is in sliding connection with the partition plate, the device can adapt to powder filling of the combined firework cylinders of different specifications by replacing the mold, and under the elastic effect of the second elastic piece, the paper covering arc plate tightly presses the gunpowder jacking paper on the gunpowder jacking of the combined firework cylinders, so that the firework cylinder filling efficiency is improved. The packaging effect of the top cover of the combined firework paper tube is improved, and gunpowder leakage of the combined firework paper tube in the subsequent transportation process is prevented.
Owner:YICHUN DEREN FIREWORKS MANUFACTURING CO LTD

A rudder wing deployment fire-powered device based on a rolling screw pair

The present invention discloses a pyrotechnic device for deploying rudder blades based on a rolling screw pair. The device comprises an outer cylinder, a sleeve, a rotating rod, a rear end cover, a honeycomb, a connecting rod, a front end cover, steel balls, and a pyrotechnic device. The outer cylinder has a three-way structure, with chambers A and B communicating, and a throttle hole provided at the bottom of chamber C. The outer cylinder is threadedly connected to the projectile body via a mounting flange. The sleeve, rotating rod, connecting rod, and honeycomb are enclosed within chambers A and B of the outer cylinder via front and rear end covers, which are respectively threadedly connected to the ends of the outer cylinder. The sleeve and rotating rod are located within chamber A. The other end of the rotating rod is nested with the sleeve, with several steel balls provided between the rotating rod and the sleeve. The connecting rod and honeycomb are located within chamber B. The pyrotechnic device comprises an igniter and gunpowder. The gunpowder is located within chamber C. The igniter is located above the gunpowder and is threadedly connected to the outer cylinder. The present invention can simultaneously achieve the functions of locking the rudder blade, rotating and deploying it, and separating it from the rudder shaft retraction.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH

A shaped charge tube smooth blasting tool and construction process

The present application relates to the technical field of tunnel blasting, in particular to a kind of energy-gathering tube smooth blasting tool and construction process.The tool includes tool main body, and the tool main body includes installation strip;Explosive roll is equipped at the side wall of installation strip;Explosive roll includes sleeve, and sleeve inside is equipped with energy-gathering tube;The one end of energy-gathering tube that extends sleeve is equipped with energy-gathering cover;Energy-gathering tube side wall is equipped with strip-shaped hole;The distance between the side wall of both ends of strip-shaped hole gradually increases from the one end of energy-gathering tube close to energy-gathering cover to the other end of energy-gathering tube.The process includes S1, mark installation hole position;S2, drill installation hole;S3, energy-gathering tube assembly;S4, middle explosive roll production;S5, bottom explosive roll production;S6, explosive roll installation;S7, hole drilling;S8, connection, detonation;For the defects in the prior art, the present application can solve the problem that the amount of powder is reduced after the energy-gathering tube is loaded into the emulsified explosive shell, and the explosion power of emulsified explosive can be improved under the condition that the amount of powder is not convenient.
Owner:CHINA RAILWAY NO10 ENGINEERING GROUP THIRD CONSTRUCTION CO LTD +1

Firecracker mincing and dispersing device

The utility model relates to the technical field of firecracker destruction, in particular to a firecracker mincing and dispersing device which comprises a base frame. A containing groove located on the lower side of the hopper is formed in the base frame, material leaking holes are formed in the material distributing plate in a rectangular array mode, the material distributing plate is arranged in the containing groove to form a scrap containing cavity and a particle containing cavity in a separating mode, and a drainage part communicated with the particle containing cavity is formed in the base frame. According to the firecracker mincing and dispersing device, firecracker residues contained in the containing groove are separated through the material distributing plate, large-particle scraps are located in the scrap containing cavity, small-particle gunpowder particles and water liquid are collected in the particle containing cavity firstly, and then the firecracker residues are separated through the material distributing plate. And then the water liquid is discharged along the water discharging part to complete separation and discharge of the gunpowder particles and the water liquid, so that the treatment efficiency of the firecracker disintegrating slag is improved, and meanwhile, the pollution problem caused by the fact that water extruded out of the firecrackers carries the gunpowder particles and overflows out can be avoided.
Owner:SHANGLI COUNTY XINLEI EXPORT FIREWORKS PRODUCTION CO LTD

Automatic lifting device for gunpowder methyl violet stability test

The invention discloses an automatic lifting device for a gunpowder methyl violet stability test, which comprises a thermostat, two vertical guide rails fixed on the two sides of the upper surface of the thermostat, two sliding blocks respectively connected to the two vertical guide rails in a sliding manner, and two sets of vertical conveyor belts respectively arranged on the front sides of the two vertical guide rails, the two ends of the test tube rack are fixed to the two sliding blocks respectively, the rotating shaft is rotationally connected to the upper ends of the two vertical guide rails, the synchronous belt wheel is fixed to the middle of the rotating shaft, and the rotating motor is connected with the synchronous belt wheel through a conveying belt; the two ends of the rotating shaft are connected with driving wheels at the upper ends of the two vertical conveying belts correspondingly, and the two sliding blocks are fixed to the conveying belts of the two vertical conveying belts correspondingly. The rotating motor drives the rotating shaft to rotate through a synchronous belt wheel, so that the two sets of vertical conveying belts drive the test tube rack to vertically move through the two sliding blocks. The automatic lifting device for the gunpowder methyl violet test effectively solves the problem of gunpowder stability test.
Owner:SHANXI BEIFANG XINGAN CHEM IND

Firework assembly line

This utility model relates to a fireworks assembly production line, comprising: a conveyor bus, and a firing gunpowder filling unit, a bottom paper pressing unit, an inner tube filling unit, and a top paper pressing unit arranged sequentially along the conveyor bus; the inner tube filling unit includes a material sorting device, a conveying device, a pushing device, a guiding device, and a pressing device; the material sorting device is used to remove the binding straps from the inner tube of the fireworks and push the inner tubes of the fireworks layer by layer into the conveying device; the conveying device is used to transport the inner tubes of the fireworks to the pushing device; the pushing device is located on one side of the conveying device and is used to push the inner tubes of the fireworks into the guiding device located on the other side of the conveying device; the pressing device is used to press the inner tubes of the fireworks in the guiding device into the outer tube of the fireworks. This application provides a fireworks assembly production line that can realize the automatic untying of the inner tubes of fireworks and the automatic assembly of the inner and outer tubes of fireworks, thereby reducing manual intervention and improving production safety.
Owner:CHANGSHA HAITAIKE AUTOMATION EQUIP CO LTD

Ignition charge loosening device

The utility model relates to the field of gunpowder technology, and disclose ignition powder loosening device, include: device shell, feed pipe and filter piece, the feed pipe is connected in the upper surface of device shell, filter piece is connected in the lateral wall of feed pipe, still include: crushing mechanism, drying mechanism and filter mechanism, the crushing mechanism sets up in the upper end of device shell, drying mechanism sets up in the lower extreme inside device shell, filter mechanism sets up in the inside of filter piece, the utility model discloses through the negative pressure fan can suck the dust that the gunpowder broke down produced into the filter piece, and the dust is filtered through the filter plate, make the filtered air to export to the outside, and then effectively reduce the dust to float in the air, drive motor drives the rotation of transmission rod, and then drive the rotation of crushing knife, can crush the gunpowder raw material of input, make the agglomerated gunpowder be scattered, and then guarantee the effect that gunpowder is used subsequently, realize the function of loosening.
Owner:SHAANXI YONGHUI ELECTRONIC TECH CO LTD

Thermal expansion liquid pressure bearing deep well seismic source device

The present application relates to a kind of hydraulic pressure deep well source device of thermal expansion, which is mainly composed of upper joint, pressure cylinder, ignition fuse, thermal expansion agent, pressure ring, shear piece, tail joint and sealing ring.The upper joint and pressure cylinder are connected by thread, the pressure cylinder is filled with thermal expansion agent, the ignition fuse is placed in the expansion agent in the pressure cylinder through the center hole of the upper joint, the tail joint and the other end of the pressure cylinder are connected by thread and sealed by the sealing ring, the pressure ring is placed in the tail joint near the end of the pressure cylinder, the pressure ring presses the shear piece in the tail joint, and the pressure ring, the tail joint and the shear piece are sealed by the sealing ring.The pressure cylinder and its structure design make the source device can be lowered into deep well for triggering, in addition to ground can be seismic, it can also be lowered into deep well for seismic, whether on the ground or in the well, it can replace the dynamite source;It is safe and reliable, avoids explosives, and solves the source problem.
Owner:BEIJING JIEWEISITE TECH CO LTD

Combination firework cylinder gunpowder filling device

The utility model discloses a combined firework barrel gunpowder filling device which comprises a compression filling mechanism and supporting frames arranged on the two sides of the compression filling mechanism, and a discharging groove is formed between the two supporting frames. A combined firework cylinder needing to be filled with gunpowder is placed on the placing table in the compression filling mechanism, the gunpowder needing to be filled is placed in the discharging hopper, the gunpowder is discharged through the discharging opening in the lower portion of the discharging hopper, and then all modules of a filling pipe assembly on the compression filling mechanism are discharged. When the number of filling modules of a filling pipe assembly on the compression filling mechanism is different, two blocking blocks are adjusted through an adjusting assembly to slide towards the middle position of a discharging groove at the same time, discharging openings are blocked, the needed number of discharging openings are reserved, and when discharging is conducted again through the discharging groove, powder filling is achieved. And the materials are only discharged from the corresponding number of discharge ports, so that the filling requirements of the pipe compression filling mechanism with different numbers of filling modules are met.
Owner:JIANGXI WANZAI QIANKUN FIREWORKS MFG CO LTD

Conveying device for firecracker production

The utility model discloses a conveying device for firecracker production, which belongs to the technical field of firecracker production and comprises a base, a conveying component is arranged on the top surface of the base, a positioning component is arranged on the conveying component, a friction reducing component is arranged on the positioning component, and the positioning component comprises a bottom plate. A fixing plate is fixedly mounted on one side of the top of the bottom plate, a telescopic rod is fixedly mounted on the outer wall of the fixing plate, a pressing plate is fixedly mounted at the other end of the telescopic rod, and an arc-shaped plate is fixedly mounted on the outer wall of one end of the pressing plate; according to the utility model, through the arrangement of the conveying assembly and the positioning assembly, the orthohexagonal cylinder cake can be effectively positioned on the conveying belt, so that the orthohexagonal cylinder cake can be accurately aligned to each hole under the charging equipment to finish charging, the phenomenon that the holes are filled with gunpowder or too much gunpowder is filled is avoided, the accuracy is greatly improved, and the working efficiency is improved. The use effect is good.
Owner:SHANGLI COUNTY LIANFA FIREWORKS MANUFACTURING CO LTD

Safe medicine pouring device

The invention relates to the technical field of gunpowder charging, and discloses a safety type gunpowder pouring device which is used for assisting a gunpowder box to pour internal gunpowder and comprises a support, a gunpowder pouring box and a feeding hopper are sequentially arranged on the support in the horizontal direction, a lifting mechanism and a turnover mechanism are sequentially arranged on the support in the vertical direction, and the gunpowder pouring box is provided with a box cover; the box cover is of a flow guide funnel structure, a pesticide outlet is formed in the middle of the box cover, an air bag valve is installed outside the pesticide outlet, the pulling-up mechanism comprises two oppositely-arranged installation plates and can drive the installation plates to ascend and descend, the overturning mechanism is arranged on the outer side of one installation plate, and pesticide pouring is conducted by opening the pesticide box and placing the pesticide box in the closed pesticide pouring box. The medicine pouring box can ascend, descend and rotate, a medicine outlet of a box cover arranged on the medicine pouring box is controlled by an air bag valve, and mechanical impact between the gunpowder and the valve can be avoided.
Owner:SHENZHEN RUIXUN AUTOMATION EQUIP CO LTD

Gunpowder combustion energy high-power pulse power supply simulation method

The invention discloses a gunpowder combustion energy high-power pulse power supply simulation method, and relates to the field of gunpowder combustion energy MHD power generation simulation, and the method comprises the steps: carrying out the simulation experiment of a gunpowder combustion energy muzzle impact wave based on a gunpowder combustion energy generator, and determining an impact wave overpressure calculation correction formula; according to the shock wave overpressure calculation correction formula, in combination with a muzzle brake design method, a magnet brake power generation channel model of gunpowder combustion energy MHD is constructed; based on the magnetic body retreating device power generation channel model, analyzing the distribution condition of gunpowder forces of different charges on multiple flow fields in a power generation channel by utilizing a finite element analysis method; the multi-flow-field distribution condition comprises the efficiency of the brake and the speed of the flow field in the chamber. The gunpowder combustion energy high-power pulse power supply simulation method can simulate the gunpowder combustion energy high-power pulse power supply.
Owner:ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY

A gun ignition system based on bottomless artillery shells

The present invention discloses a gun ignition system for primerless artillery shells, comprising an ignition unit, a launch unit, and a control unit. The ignition unit comprises a first-shot shell ignition unit, a fuel gas cylinder, and an ignition tube; the fuel gas cylinder is connected to the launch unit via the ignition tube. Compared with existing technologies, the present invention uses high-temperature, high-pressure fuel gas generated by gunpowder gas to ignite shells during continuous firing, thereby eliminating the shell primer, saving resources, simplifying the gun structure, and improving firing reliability.
Owner:ARMY ENG UNIV OF PLA

Firecracker filling mechanism of firecracker machine

The utility model discloses a drenching mechanism of a firecracker machine, which comprises a machine frame, a discharging bin is arranged on the machine frame, a roller capable of moving left and right is arranged in the discharging bin, scrapers evenly distributed on the circumference are arranged on the outer wall of the roller, the roller can move left and right while rotating, a bottom plate of the discharging bin can vibrate up and down, and a discharging hole is formed in the bottom plate. A horizontally-arranged medicine cylinder discharging plate is inserted into the lower portion of the discharging bin, discharging inserting holes are formed in the medicine cylinder discharging plate, and the discharging inserting holes and the discharging holes are aligned in a one-to-one mode and share the same center line. Therefore, the technical effect of automatically filling the gunpowder into the cartridge case is achieved, and the production efficiency is improved.
Owner:ZHEJIANG HEITUO MACHINERY TECH