17 results about "Pyrotechnic composition" patented technology

The utility model provides a novel wireless smoke pot device. The novel wireless smoke pot device comprises a wireless smoke pot and a radio induction driving circuit, the wireless smoke pot is connected with the radio induction driving circuit; the wireless fuming pot comprises a first wireless induction coil, an electronic ignition head and a fuming pyrotechnic composition; the wireless induction coil is connected with the electronic ignition head; the electronic ignition head is connected with the ignition pyrotechnic composition; the radio induction driving circuit comprises a second wireless induction coil and a control circuit; and the control circuit is connected with the second wireless induction coil and is used for receiving a control instruction sent by the MCU. The wireless smoke pot does not need extra power supply, and is simple in periphery, simple in process, easy to implement and small in size. A wireless charging chip scheme is adopted in the wireless induction driving circuit, wireless induction cigarette lighting can be achieved only through few peripheral devices, the size of a finished product is further compressed, and the production process and the cost are further optimized.

A method for making a pyrotechnic composition in accordance with an embodiment of the present technology includes flowing metal powder, polytetrafluoroethylene powder, and binder powder in separate respective feed streams toward an extruder. The binder powder includes adhesive material and polytetrafluoroethylene anticaking material coating the adhesive material. The method further includes interspersing the metal powder, the binder powder, and the fluoropolymer powder to form a mixture. This mixture is then subjected to an extrusion process during which the anticaking material coating the adhesive material is disrupted. This releases the adhesive material to bind together the metal powder and the polytetrafluoroethylene powder in the extrudate. The powder mixture includes no solvent at any time between being formed and being extruded, yet the extrudate is well-mixed and cohesive.

The invention provides a pyrotechnic composition as well as a preparation method and application thereof, and the pyrotechnic composition comprises 20-50% of fuel, 40-70% of oxidant and 3-10% of energetic additive based on the total weight of the pyrotechnic composition being 100%, wherein the energetic additive is nano manganese difluoride and is granular, and the average diameter of the energetic additive is smaller than 300 nm. The pyrotechnic composition provided by the invention has the advantages of high reaction rate, high energy output, high gas yield and the like.

A hybrid airbag inflator includes a pyrotechnic booster gas generant disposed in a booster combustion chamber and a pyrotechnic main gas generant disposed in a main combustion chamber. The hybrid airbag inflator also includes an initiator and a pressurized gas. The pyrotechnic booster gas generant and the pyrotechnic main gas generant are the same pyrotechnic composition but take different physical forms. The initiator deploys into the booster combustion chamber to ignite the pyrotechnic booster gas generant which in turn ignites the pyrotechnic main gas generant. The pressurized gas is in fluid communication with both the booster combustion chamber and the main combustion chamber prior to deploying the initiator, such that the pyrotechnic booster gas generant in the booster combustion chamber is under pressure before the initiator deploys.

The application relates to the technical field of powder tabletting, and discloses an automatic filling and tabletting device for fireworks and a method thereof, which comprises an operation table, a tabletting assembly is arranged on the operation table, the tabletting assembly comprises a middle shaft, a sleeve is rotationally connected to the outer wall of the middle shaft, a pressure disc and a hole disc are fixedly connected to the outer wall of the sleeve, and a plurality of tabletting holes are formed in the hole disc; a feeding assembly is arranged on the operation table and used for filling the fireworks into the tabletting holes; an isolating assembly is arranged on the feeding assembly and used for spraying an isolating agent in the tabletting holes. Through cooperation of the tabletting assembly and the feeding assembly, the fireworks in a material box are continuously filled into the plurality of tabletting holes in the process that the pressure disc and the hole disc continuously rotate, the technical effect of continuous automatic feeding is achieved, meanwhile, the plurality of pressure shafts can be sequentially lowered for tabletting treatment, and the technical effect of automatic continuous tabletting is achieved.

The invention discloses a color smoke generating agent containing a nanometer material, and belongs to the technical field of pyrotechnic compositions, and the color smoke generating agent comprises the following components by weight: 25-40% of an oxidizing agent; 20%-30% of a reducing agent; 25%-40% of an organic dye; 2%-10% of a nanoscale functional additive; the nanoscale functional additive can be selected from one or a mixture of any two or more of nanoscale silicon dioxide (SiO2), nanoscale aluminum oxide (Al2O3) and nanoscale perlite powder. The invention is used for solving the problems of low smoke generation speed, small smoke column diameter and unsaturated smoke color of the existing colored smoke generation agent.

The invention relates to the fields of chemical industry, pyrotechnic compositions, fireworks and crackers and the like, and relates to preparation of barium fumarate serving as a novel compound material with coloring agent and reducing agent effects, and preparation and application of the material in the fields of pyrotechnic compositions, fireworks and crackers and the like. The preparation method comprises the following steps: mixing fumaric acid and barium carbonate or barium oxide or barium hydroxide, and heating an aqueous solution to prepare barium fumarate; furthermore, the barium fumarate can be fully mixed with selected other substances to prepare a green pyrotechnic composition, and the green pyrotechnic composition is applied to fireworks and crackers and other fields; in addition, the barium fumarate is mixed with other selected substances, a small amount of perchlorate can be selectively added and fully mixed to prepare non-pyrotechnic composition or pyrotechnic composition substances in various geometrical shapes, and then the substances are placed in handheld, ground and air (including aircrafts) devices or equipment to be used for preparing the non-pyrotechnic composition or pyrotechnic composition. The non-pyrotechnic composition and the pyrotechnic composition substance can be ignited according to the electronic heating principle, and green light is emitted through combustion for color development.

The invention belongs to the field of production and manufacturing of energetic materials for fireworks and crackers, and particularly relates to a preparation method of a nitrocotton-based pyrotechnic composition for fireworks and crackers. The preparation method comprises the following steps: sequentially adding water, nitrocotton, a stabilizing agent and ethyl acetate into a reaction kettle provided with a heating and stirring device, then adding protective glue, continuously stirring, adding a sodium sulfate solution into the reaction kettle, dehydrating, adding microcrystalline wax / paraffin into the reaction kettle after the particle morphology is stable, and continuously stirring; melting microcrystalline wax / paraffin under the stirring action, and uniformly coating the surfaces of the nitrocotton particles with the microcrystalline wax / paraffin to form a layer of hydrophobic protective film, so as to obtain a semi-finished product; washing with warm water to remove residual sodium sulfate, protective glue and a small amount of ethyl acetate; and drying the washed product at the temperature of lower than 50 DEG C to obtain a final gunpowder particle product. According to the method, the spherical and dense nitrocotton-based pyrotechnic composition particles with good surface coating can be prepared, and the free-running property, the combustion consistency and the moisture absorption resistance of the product are effectively improved.

The utility model discloses a firework product capable of generating a subtitle firework effect, which comprises a flexible or rigid base material, the base material is provided with a plane structure used 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 utility model discloses a pyrotechnic composition bead manufacturing machine, and belongs to the field of pyrotechnic composition bead manufacturing, the pyrotechnic composition bead manufacturing machine comprises a base, a composition bead tank is rotatably connected above the base, a filtering inner container is arranged above the composition bead tank, a vibration assembly is arranged above the filtering inner container, the vibration assembly comprises a limiting rod, the limiting rod is fixedly connected with the upper part of the base, and the limiting rod is fixedly connected with the lower part of the base. A connecting plate is slidably connected to the outer surface of the limiting rod, a connecting rod is fixedly connected to the lower portion of the connecting plate, a membrane rib gun is fixedly installed at the lower end of the connecting rod, a second rack is fixedly connected to the lower portion of the connecting plate, the vibration assembly further comprises an electric push rod, and a first rack is arranged on the right side of the electric push rod. According to the device, the filtering inner container in the medicine bead tank is vibrated through descending of the vibration assembly, gunpowder in the filtering inner container is removed through vibration of the vibration assembly, and the more efficient and stable vibration effect is achieved.

The utility model discloses a processing device for carbon-oxygen powder for fireworks. The processing device sequentially consists of a calcining furnace, a wet ball mill and a vacuum concentration tank, mixing the material at the discharge hole of the calcining furnace with a ball milling medium, and carrying out ball milling in a wet ball mill; a mixture of the ball-milled material and the ball-milling medium is fed into a feed port of a vacuum concentration tank, and a heating coil is arranged in the vacuum concentration tank; a vapor-state ball-milling medium outlet in the top of the vacuum concentration tank is connected with the top of the condenser through a demister and enters a receiving cavity in the bottom of the condenser through the middle of the condenser; an inner cavity of the condenser is connected with a vacuum generating mechanism. Particle materials not larger than 400 meshes can be formed safely, efficiently and reliably, so that carbon-oxygen powder materials suitable for fireworks and pyrotechnic compositions are obtained; reliable and efficient separation of ball milling media and materials is realized; the processing and manufacturing process is safe, efficient and environment-friendly; the prepared carbon-oxygen powder is not only suitable for firework pyrotechnic compositions, but also free of smoke, odor and slag during combustion.

The invention relates to the fields of chemical industry, pyrotechnic compositions, fireworks and crackers and the like, and relates to preparation of strontium fumarate serving as a novel compound material with coloring agent and reducing agent effects, and preparation and application of the material in the fields of pyrotechnic compositions, fireworks and crackers and the like. The preparation method comprises the following steps: mixing fumaric acid and strontium carbonate or strontium oxide or strontium hydroxide, and heating an aqueous solution to prepare strontium fumarate; furthermore, strontium fumarate can be fully mixed with selected other substances to prepare a red pyrotechnic composition, and the red pyrotechnic composition can be applied to fireworks and crackers and other fields; in addition, strontium fumarate is mixed with other selected substances, a small amount of perchlorate can be selectively added to be fully mixed to prepare non-pyrotechnic composition or pyrotechnic composition substances in various geometrical shapes, and then the substances are placed in handheld, ground and air (including an aircraft) devices or equipment to be used for preparing the non-pyrotechnic composition or pyrotechnic composition. The non-pyrotechnic composition and the pyrotechnic composition substance can be ignited according to the electronic heating principle, and red light is emitted through combustion for color development.

The utility model discloses a hydraulic forming device for pyrotechnic composition, which relates to the technical field of firework production equipment and comprises a base, a lower pressing block is arranged on the base, a template is arranged above the lower pressing block, an upper pressing block is arranged above the template, a cleaning component is further arranged at the upper end of the template, and a grain collecting component is arranged between the template and the lower pressing block. According to the utility model, the cleaning assembly is arranged at the upper end of the template, so that the problem that redundant gunpowder needs to be manually removed by using a scraping plate during filling is solved, and the potential safety hazard is reduced; and the grain collection assembly is arranged at the lower end of the template, so that grain collection is more convenient during discharging.

The utility model discloses a positive and negative rotation stirring device for mixing pyrotechnic compositions, which comprises a frame, a stirring component for stirring and mixing the pyrotechnic compositions is arranged on the frame, a driving component is mounted in the frame, a transmission component is arranged at an output shaft of the driving component, and the driving component drives the stirring component to work through the transmission component. The stirring assembly comprises a stirring shaft. According to the forward and reverse rotation stirring device for mixing the pyrotechnic composition, materials are stirred in a forward and reverse rotation mode, it can be guaranteed that all kinds of materials are fully mixed, meanwhile, the materials are prevented from being attached to the backs of the stirring blades, and the preparation quality of the pyrotechnic composition is guaranteed; the material barrel can be used in a proper mode according to use requirements, the stirring assembly can also be used for cleaning materials on the wall of the material barrel in the material stirring process, and the situation that part of the materials are attached to the wall of the barrel and cannot be fully mixed is avoided.

The invention belongs to the technical field of firework and firecracker production equipment, and discloses a firework and firecracker quantitative charging device which comprises a workbench, a bearing disc is rotatably mounted on the surface of the workbench, a plurality of bearing holes which are annularly distributed at equal intervals are formed in the surface of the bearing disc, and a fixing plate is fixedly mounted on the surface of the workbench; a fixing plate is arranged on the workbench, a containing hopper is fixedly installed in the middle of the fixing plate, a medicine guide pipe is arranged at the bottom end of the containing hopper, a quantitative medicine charging mechanism is arranged in the medicine guide pipe and comprises a discharging assembly and an adjusting assembly, the discharging assembly is composed of a sealing part and a penetrating part, and a driving assembly is arranged on the bottom wall of the workbench. By arranging the discharging assembly composed of the sealing part and the penetrating part to be matched with the adjusting assembly, quantitative pyrotechnic composition can be automatically put into the firecracker paper tube, and the quantity of the pyrotechnic composition can be adjusted according to different filling requirements.

The application discloses a snowflake-shaped effect shell, wherein the effect component in the effect shell body is an effect lead wire, the effect lead wire is composed of an outer coating and a pyrotechnic composition wrapped by the outer coating, and the effect lead wire is provided with a fireproof coating; the effect shell shell body is provided with an opening explosive and a plurality of effect lead wires, and is filled with a light fireproof filler. After the effect shell is launched, ignited and scattered in the high altitude, the combustion of the pyrotechnic composition forms intermittent white light points with bright and dark alternation, and the light points are visible within 1 km. Due to the light point flicker and the moving state in the high altitude, the effect shell does not need to be made into a U-shaped roll or a circular ring shape, and the shape of each light point is similar to the shape of the snowflakes falling; a large number of light points can also form a realistic snowflake dancing effect in the visual field of the audience; and the preparation and installation are simple and easy to implement, and the production cost is low.

The invention discloses an automatic pyrotechnic composition weighing and batching system which comprises a first batching room, a second batching room and a third batching room, and weighing and batching devices are arranged in the first batching room and the second batching room; the weighing and batching device comprises a rack, storage hoppers, a weighing hopper and a belt conveyor, the belt conveyor is transversely arranged on the rack, a plurality of storage hoppers are fixedly installed on the upper portion of the rack in the length direction of the rack, a chute is formed in the bottom of each storage hopper, and an electromagnetic vibrator is installed on each chute; a plurality of weighing hoppers corresponding to the chutes in a one-to-one mode are arranged above the belt conveyor in the length direction, a discharging port of each chute is located above each weighing hopper, each weighing hopper is provided with a weighing sensor, a discharging port in the bottom of each weighing hopper is hinged to a hopper door through a hinge, and the hopper doors of the weighing hoppers are all connected with an opening and closing control device. The single raw materials are weighed independently and simultaneously, separation between people and the materials and separation between different materials are achieved, safety and reliability are achieved, and the working efficiency is high.