224 results about "Gunpowder" patented technology

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 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.

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 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 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 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 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 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 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 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.

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.

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.

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.

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.

The present invention relates to a method for improving flight stability, effective range, accuracy, and destructive force by moving the center of gravity of a bullet (shell) forward, and the bullet (shell). To this end, the front part of a counterweight jacket of the bullet (shell) is designed to be thicker or higher in density than the rear part thereof, so that the center of gravity is naturally moved forward. This structural feature stabilizes the trajectory by minimizing the yaw angle during flight, and increases the force of impact transmission to the target. In addition, a material having a low specific gravity is used inside a gunpowder contact part and the rear part to further strengthen the effect of moving the center of gravity to the front part. The present invention can maintain a stable flight trajectory in both ground and underwater environments, and maximizes the performance of a bullet (shell) to increase an effective range, destructive force, and accuracy.

The utility model discloses a safe charging and mixing device for fireworks and gunpowder. The device comprises a mixing module and a charging module, the mixing module is used for mixing gunpowder raw materials, and the charging module is used for storing various gunpowder raw materials and conveying the raw materials to the mixing module. The material mixing module comprises a material mixing bin and a cooling bin, the material mixing bin is mounted on the vertical lifting module and is provided with a driving motor for driving the material mixing bin to rotate, and circulating cooling water is introduced into the cooling bin. Through the structural design, the device avoids the problem of friction heat generation caused by traditional mechanical stirring in the mixing process, the risk of spontaneous combustion and explosion of gunpowder is reduced, and the safety of the production process is remarkably improved. A heat dissipation part is arranged on the outer wall of the mixing bin and is made of an explosion-proof material, and an anti-static coating is arranged in the feeding pipe, so that the safety in the feeding and mixing processes is ensured.

The invention belongs to the technical field of fire extinguishing test systems, and discloses a rapid fire extinguishing test system for explosive fire and a test method thereof.The rapid fire extinguishing test system comprises a storage box, an electromagnetic valve is arranged above the storage box and fixedly communicated with a spray head, and a control mechanism, an ignition mechanism and a water supply mechanism are arranged on one side of the storage box; the control mechanism is used for controlling the electromagnetic valve, the ignition mechanism and the water supply mechanism and detecting whether the gunpowder is burnt or not, and the ignition mechanism is used for igniting the gunpowder; the controller is arranged on one side of the storage box and is in circuit connection with the electromagnetic valve, the ignition mechanism and the water supply mechanism, and the high-speed detector is arranged on one side of the storage box and is in circuit connection with the control mechanism. According to the method and the device, through improvement of the prior art, the optimal fire extinguishing response time can be judged according to different response time, different fire extinguishing water pressures and the residual weight of the gunpowder under different conditions, so that the optimal fire extinguishing scheme is selected, and the fire extinguishing effect is favorably improved.

The present invention discloses an automatic discharging device for a fireworks powder automatic mixer, comprising an installation box body, an electric push rod 1 being installed inside the installation box body, the top end of the electric push rod 1 being detachably connected to a pushing crank 1, the interior of the pushing crank 1 being connected to a vertical shaft via a fixing pin, the bottom end of the vertical shaft being connected to a horizontal shaft, the top end of the horizontal shaft being installed with a sliding sleeve assembly, the operation of the electric push rod 1 being controlled to drive the vertical shaft to rotate under the action of the pushing crank 1, thereby driving the horizontal shaft to rotate, and the material receiving barrel can be moved to the discharge port of the automatic gunpowder mixer, so that the electric push rod 1 is reset to bring out the material receiving barrel, thereby receiving and moving the material discharged from the automatic gunpowder mixer, replacing the workers' operation of taking the barrel to receive the material, thereby improving the degree of automation of the equipment, effectively preventing operational errors, and thus improving the safety of discharging.

The utility model belongs to the field of structural design of smoothbore projectile ammunition, and particularly relates to an air closing device suitable for projectile launching of a recoil-free cannon, which can be used for closing air between a projectile and the recoil-free cannon. The air closing device comprises a switching body, an air closing ring and a pressing plate, and the air closing ring is located between the switching body and the pressing plate. The gunpowder gas launched by the recoil-free gun and the ductility of the non-metal gas closing ring are ingeniously utilized, and the problem that the bullets are closed in the launch process of the smoothbore gun is solved. After the artillery is launched, the gas closing ring is cut off in the bullet squeezing-in process, and gunpowder gas expands the gas closing ring outwards to enable the gas closing ring to be tightly attached to the wall of a gun bore, so that the gas closing effect is achieved; the utility model has the advantages of simple structure, reliable function, convenience in processing and assembling, large popularization and application space and the like.

The utility model relates to fireworks production technical field especially relates to a material distribution and mixing device with explosion -proof function, the utility model provides a material distribution and mixing device with explosion -proof function can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk, a material distribution and mixing device with explosion -proof function, including the placing table, telescopic column, first spring and material collecting hopper etc. The utility model under the negative pressure suction effect of the air pump makes the dust in the explosion -proof cover and material collecting hopper discharge in turn through the connecting cover and connecting pipe, and the gunpowder particles in the explosion -proof cover and material collecting hopper in the intercepting net are intercepted and filtered, which can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk.

The utility model discloses an integrated nail for building installation, which relates to the technical field of building installation, and comprises a metal nail and a nail head shell arranged at the top of the metal nail, the nail head shell comprises an outer shell and a propellant powder shell, the inner top of the outer shell is provided with an assembly cavity, and the propellant powder shell is assembled at the inner top of the assembly cavity. The inner diameter of the end, close to the metal nail, of the assembly cavity is shrunk to form an energy gathering part, the bottom end of the propellant powder shell is located at the top of the energy gathering part, so that the distance between the tail end of the metal nail and the propellant powder shell is increased, and at the moment of firing, high-energy gas generated by gunpowder gas expansion achieves gas gathering through the energy gathering part; according to the integrated nail fastener, the metal nail can be quickly ejected outwards along the launching tube, the percussion performance is improved, meanwhile, plastic lengthening is utilized, energy of propellant powder is gathered, the gap between the plastic lengthening section and an inner hole of the launching tube after percussion is reduced, and the purposes that the performance is improved and the integrated nail fastener adapts to various launching tube calibers are achieved.

The invention discloses a method for analyzing the reliability of a gunpowder igniter in a low-temperature ignition failure mode, which comprises the following steps of: firstly, carrying out characterization analysis on the ignition failure mode of the gunpowder igniter in a low-temperature environment, identifying main uncertain factors influencing the low-temperature ignition reliability by adopting a fault tree method (FTA), and determining the probability distribution characteristic of the main uncertain factors; then, an implicit performance function of the failure mode is established. In order to clarify a deterministic relationship between a performance parameter and a design variable, an inner ballistic simulation model for low-temperature ignition of a gunpowder igniter is constructed based on an inner ballistic theory, and a Kriging agent model is further established by using the simulation model. And finally, sampling and solving the Kriging model through an MCS method (Monte Carlo simulation) to obtain the failure probability and reliability of the low-temperature ignition failure mode of the gunpowder igniter. The reliability of the gunpowder igniter under the low-temperature condition can be accurately evaluated, and a theoretical basis is provided for product improvement design.

The present invention discloses an ignition powder and ignition device for a solid rocket engine. The ignition powder comprises an oxidizer (50-70%), a binder (10-30%), a coupling agent (3-10%), and a fuel (10-35%). The ignition powder has a combustion heat of over 6,000 kJ / kg. Furthermore, the ignition powder has lower mechanical sensitivity than commonly used black powder, improving safety during the ignition operation of the solid rocket engine. The ignition device fully covers the combustion end surface of the solid propellant in the solid rocket engine, achieving full-burning surface ignition of the solid propellant and significantly shortening the engine ignition delay time. The thin-layer metal ignition electrode and polymer insulating film used are completely burned out after the ignition powder burns, without negatively impacting the burning surface of the solid propellant.

The invention discloses an injection assembly and an air inflation device, and relates to the technical field of gas generators, the air inflation device comprises the air inflation assembly and the injection assembly, the injection assembly comprises an injection main pipe and a branch pipe, one end of the injection main pipe is connected with the air inflation assembly, and the other end of the injection main pipe is used for being connected with an air bag; the branch pipe is connected between the two ends of the main injection pipe and can drive external air to enter the main injection pipe when gas circulates in the main injection pipe. The inflation assembly of the inflation device provided by the invention is provided with the gas generator, the gas generator can generate a large amount of gas during ignition and combustion, and when the gas circulates in the injection main pipe, the branch pipe is driven by the Venturi tube principle to drive external air to enter the injection main pipe; according to the gas generator, the external cold air is mixed with the gas generated by the gas generator, so that the inflating amount of the gas bag is increased, the inflating requirement of the gas bag is met, the gunpowder amount requirement of the gas generator is effectively reduced, and the cost is low.

The invention discloses a strong alkali cleaning agent for stubborn gunpowder residues. The strong alkali cleaning agent comprises the following components in parts by weight: 4.5-18 parts of an organic solvent; 5-30 parts of a complexing agent; 7-20 parts of an oxidizing agent; 3-15 parts of a corrosion inhibitor; the pH is regulated to 11 to 14 by a pH regulator, and 20 to 80 parts of water. The stubborn gunpowder residue strong alkali cleaning agent is compounded by an organic solvent, a complexing agent, an oxidizing agent, a corrosion inhibitor and water in proportion, all the components are stable, compatible and synergistic in a strong alkali environment, stubborn gunpowder residues can be well removed at the working temperature of 10-40 DEG C, and the removal rate is larger than or equal to 95%.

The invention discloses a blasting device capable of achieving segmented charging, and relates to the technical field of gold mine blasting, the blasting device comprises a charging assembly, the charging assembly is used for charging gunpowder into a blast hole, the blast hole is formed in a gold mine, the charging assembly comprises a base, the base is located at the top of the blast hole, and the top of the base is fixedly connected with a rotating shaft; the end part of the rotating shaft is fixedly connected with a servo motor, the servo motor is divided into a fixed end and an output shaft, and the output shaft end of the servo motor faces the side far away from the rotating shaft; the explosive charging assembly abuts against the hole wall of the blast hole through physical contact, chemical bonding is formed after the foam adhesive is cured, the problems that gravity and friction force in a deep hole and an inclined hole of the blast hole are insufficient and the like can be solved through combination of the explosive charging assembly and the foam adhesive, and therefore the explosive charging barrel can be fixed in a mechanical clamping and chemical bonding double-insurance fixing mode. The position of each section of explosive in a blast hole is independently limited, position shifting caused by contact or external force influence of upper and lower section charging is avoided, and it is ensured that the explosive is always located at the designed position in the whole blasting preparation process.

The invention discloses firework powder mixing and filling equipment, and belongs to the technical field of firework processing equipment.The firework powder mixing and filling equipment comprises a rack and a line body used for conveying tool plates, a powder filling platform is arranged on the rack and above the line body, and the powder filling platform comprises a powder sweeping part used for filling the tool plates with powder and a filling part; an explosive filling groove is formed in the position, over the tool plate, of the bottom of the explosive loading platform, and a lifting mechanism used for lifting the tool plate to the explosive filling groove is arranged on the portion, under the tool plate on the line body, of the rack; a medicine mixing tank used for mixing and providing medicine materials is communicated with the upper portion of the medicine loading platform, a gear disc driven by rotation of the transmission mechanism is arranged at one end of the medicine mixing tank, and a spiral blade used for mixing the medicine materials and a screen used for filtering the medicine materials are arranged in the medicine mixing tank. According to the automatic quantitative gunpowder sweeping and filling device, automatic quantitative gunpowder sweeping and filling of firework products are achieved, mixing, filling and compacting of gunpowder are completed in a closed environment, and the whole device is safer and more reliable while running efficiently and orderly.