440 results about "Gunpowder" patented technology

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.

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.

The invention discloses an expanded electric shock needle type electric shock bomb which comprises a bomb shell, a bomb body, a launching assembly, a power supply assembly, an electric shock assembly and a needling assembly, the electric shock bomb is applied to ammunition with 18.4 mm and 12 # caliber for the first time, and the ballistic performance in the ammunition is stable by applying a high-low voltage launching technology; after the criminal suspect hits the target, the criminal suspect immediately loses the action ability through the high-voltage pulse released by the electric shock bomb, but permanent trauma cannot be caused; a safety block is used for realizing power-off safety before ammunition is taken out of a chamber; after the safety is released, the gunpowder gas pushes the conductive push rod to move, so that the high-voltage shock module starts to work; the electric shock needle is unfolded after the projectile goes out of the chamber; the space dislocation anti-pulling needle on the projectile body can cause secondary electric shock when the target touches the electrode; the electric shock bomb is provided with the power supply and the high-voltage module, has no tail wire, and is simple and ingenious in structure and low in cost.

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.

The invention provides an air passive missile arresting net bullet, and belongs to the technical field of air missile arresting. The arresting net bullet comprises a bullet head, a bullet body and a bullet tail which are connected in sequence; wherein a propelling system, a delayed ignition controller, a gunpowder chamber and a separation chamber are arranged in the bullet tail, the propelling system is used for providing power for the arresting net bullet, the delayed ignition controller is used for controlling ignition of the gunpowder chamber, the gunpowder chamber is filled with separation fuel for separating the bullet body from the bullet tail, and the separation chamber is used for controlling separation of the bullet body and the bullet tail; a flexible blocking net which is in a preset shape after being unfolded is arranged in the projectile body, the vertex angle or the edge of the flexible blocking net is connected with a small traction ball, and the small traction ball is located in a separation chamber at the connecting position of the projectile tail and the projectile body.

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.

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.

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.

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.

The utility model relates to the technical field of firework equipment, in particular to charging equipment for firework and cracker production, which comprises a base and a frame, the frame is fixedly connected on the upper surface of the base, a support is fixedly connected below the base, a rotating mechanism is arranged above the support, the frame is fixedly connected with the outer wall of a hopper, and the hopper is fixedly connected with the base. A discharging pipe is fixedly connected to the lower portion of the hopper, and a transverse rod is fixedly connected to the inner wall of the frame. The first motor drives the gear to rotate, the gear drives the rack to move, the rack drives the sleeve to move, the sleeve slides on the outer wall of the discharging pipe and drives the sliding block to move, the sliding block slides on the outer wall of the sliding rod, the sliding block and the sliding rod enable the sleeve to move more stably, and the lower end of the sleeve extends into the firework cylinder to close the first motor. The gunpowder for firework and firecracker production is added into the hopper, the gunpowder enters the firework cylinder through the discharging pipe and the sleeve to achieve charging, the height of the sleeve can be adjusted, and when the lower firework cylinder is charged with the gunpowder, the gunpowder is not prone to scattering.

The invention belongs to the technical field of vehicle engineering, and particularly relates to an intelligent automatic window breaking escape device for a vehicle falling into water, which comprises a vehicle body frame and a seat pressure sensor, a buzzer alarm is installed on the side wall of the indoor lamp switch combination body on the top of the vehicle body frame, and the seat pressure switch sensor module serves as a main switch of the whole circuit. When the water level reaches the positions of the first metal contact plate and the second metal contact plate, a boosting module circuit is switched on, the current instantaneous voltage is higher than the rated voltage of a vehicle-mounted battery at the moment, gunpowder in a gunpowder cavity is detonated at the moment, and therefore the window breaking effect is achieved by pushing a breaking hammer to move rapidly. And any corresponding window breaking tool and any form of manual operation do not need to be found. Therefore, the risk that the vehicle cannot escape after falling into water is reduced. At the moment, an ignition wire in the pusher is triggered through current, gunpowder is ignited, the breaking hammer is pushed to break the window, and then the automatic window breaking and escaping function is achieved when the vehicle falls into water.

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.

The invention provides a firework launching cylinder, a mold and a method for preparing the firework launching cylinder through the mold, the firework launching cylinder comprises a launching cylinder body and a reinforcing structure arranged below the launching cylinder body, and the reinforcing structure comprises a base and reinforcing ribs connected with the base and the launching cylinder body. The section size of the base is larger than that of the launching cylinder, the lower surface of the base is sunken to form an avoiding groove, a reinforcing circular truncated cone is arranged in the avoiding groove, a gunpowder channel used for containing gunpowder is formed in the launching cylinder, the downward part of the bottom wall of the launching cylinder is sunken to form a countersunk groove, and the lower part of the bottom wall of the launching cylinder is sunken to form the countersunk groove. The surface of the reinforcing circular truncated cone is partially recessed to form a lead placing groove, a prepared through hole is formed in the groove bottom of the lead placing groove in a penetrating mode, and a penetrating through hole communicated with the prepared through hole is formed in the groove bottom of the countersunk groove in a penetrating mode. The risk that the firework launch canister is inverted when launched can be reduced, the rising impact force of the rising nitrate is improved, and meanwhile the safety of the lead is protected.

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.

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.

The invention discloses an extended-range composite non-lethal kinetic energy bomb which comprises a launching assembly and a projectile assembly, a first-stage high-low pressure structure is arranged in the launching assembly, initial kinetic energy is given to the projectile assembly, and a second-stage high-low pressure structure is arranged in the projectile assembly, so that the extended-range composite non-lethal kinetic energy bomb has good-consistency pulling elastic force and outlet speed; by means of the second-stage high-low pressure structure, the range extending device is arranged, so that secondary acceleration of the bullet assembly can be achieved, the effective range of the bullet assembly is further improved, meanwhile, reliable release of kinetic energy bullets and OC stimulation powder at the end point is achieved by arranging the gunpowder delay tube and delaying ignition of the annular explosion expanding powder, and therefore the bullet assembly can be rapidly and efficiently accelerated. Therefore, kinetic energy striking and lacrimation dispersing of a long-distance target can be achieved, the problems that an existing anti-violence kinetic energy bullet is short in firing range and poor in end point action effect are effectively solved, the kinetic energy bullet and the OC stimulation powder are oppositely separated from the outer bullet body and the inner bullet body due to explosion expansion of the annular explosion expansion powder, and accidental injuries to the living target can be reduced.

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.

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.

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.

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.

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.

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.

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.

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.

The invention belongs to the technical field of hazardous waste resource utilization, and particularly relates to a preparation method and application of a solid organic reducing agent. The preparation method of the solid organic reducing agent comprises the following steps: firstly, constructing a liquid reactant matrix with an organic matter as a main component; adding the organic hazardous wastes into the constructed liquid reactant matrix, and reacting to obtain a mixed product; and finally, cooling the mixed product to prepare powder to obtain the solid organic reducing agent. The solid organic reducing agent can be used as a reducing agent component in composite energetic materials such as explosives, gunpowder and fireworks, and can also be used as a fuel in combustion equipment. The method has the technical effects that organic hazardous wastes in different states can be converted into solid combustible powder, the energy density and the combustion speed of the solid combustible powder can be remarkably improved, the treatment process is short, the cost is low, no three wastes are generated, and the universality is high.

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.

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.

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.

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.

The invention belongs to the technical field of energetic materials, and provides a smokeless sulfur-free firework propellant and a preparation method thereof. The invention provides a preparation method of smokeless sulfur-free firework propellant powder. According to the invention, the first cotton nitrocellulose and / or the second cotton nitrocellulose are / is used as nitrocellulose, so that the finally obtained firework propellant powder is smoke-free and sulfur-free, and has an excellent gunpowder force value. The preparation method provided by the invention is simple and easy to operate. The nitrogen content of the smokeless sulfur-free firework propellant provided by the invention is 6.813 to 12.6 percent, the viscosity of the smokeless sulfur-free firework propellant is 3.24 to 4.9 DEG C, the apparent density of the smokeless sulfur-free firework propellant is 0.82 to 0.89 g / cm < 3 >, the gunpowder force of the smokeless sulfur-free firework propellant is 842.6 to 897.6 kj / kg, the specific heat ratio of the smokeless sulfur-free firework propellant is 1.1023 to 1.2588, the flame temperature of the smokeless sulfur-free firework propellant is 1435 to 2042 K, and the residual capacity of the smokeless sulfur-free firework propellant is 776 to 1067 cm < 3 > / kg.