59results about "Explosive ingredient compounding" patented technology

The invention relates to the technical field of thermite, in particular to a thermite system of an ultralow condensed phase combustion product and a preparation method of the thermite system. The preparation method of the aluminothermic system comprises the following steps: S1, synthesizing nanoscale BiF3 particles; s2, immersing a mixed oxidizing agent into a copper nitrate solution, dropwise adding ammonia water into a system, reacting for a period of time, standing and aging the reaction system, performing centrifugal separation, washing, and performing vacuum freeze drying to obtain BiF3-coated TACN core-shell structure particles; and S3, adding the acid-activated nano aluminum powder and the BiF3-coated TACN core-shell structure particles into an n-hexane medium, carrying out ultrasonic treatment, and drying to obtain thermite powder. Through the high reaction interface of the nano-scale bismuth-based fluoride and the activation strategy of the high-energy gas production compound on the interface, the output of ultralow condensed phase combustion products and the efficient release of system energy are realized.

The invention relates to the technical field of energetic materials, in particular to a laser response type high-entropy alloy-based initiating explosive material and a preparation method thereof. The initiating explosive material is mainly formed by uniformly loading a heat-sensitive high-energy compound (such as lead stilbeneate or hexa (4-amino-3, 5-dinitropyrazole) copper) on high-entropy alloy nanoparticles containing five or more metal elements, wherein the heat-sensitive high-energy compound is such as lead stilbeneate or hexa (4-amino-3, 5-dinitropyrazole) copper. The preparation method comprises the following steps: mixing acetylacetone metal salt, a surfactant and a reducing agent in an organic solvent, and stirring and reacting at 180-220 DEG C to prepare high-entropy alloy nanoparticles; the nano particles and a high-energy compound are co-dispersed in a mixed solvent containing a dispersing agent, ultrasonic treatment is carried out to form suspension liquid, and freeze drying is carried out to obtain the nano particles. The method is characterized in that the excellent photo-thermal conversion performance of the high-entropy alloy is utilized, under low laser energy irradiation, a high-energy compound can be effectively excited, and stable detonation of secondary charge CL-20 is successfully achieved. According to the invention, the problems of high response threshold and low output energy of the existing laser initiating explosive material are solved.

The invention discloses a method for coating pentazole hydroxylammonium salt with copper alginate, the pentazole hydroxylammonium salt is coated with a copper alginate gel network to form a composite material, the stirring rate and the dripping rate are strictly regulated and controlled by screening different mass ratios and drying modes, and the composite material is prepared. And an optimal experimental formula is screened out so as to achieve the purpose of reducing hygroscopicity and mechanical sensitivity. Compared with a pentazole hydroxylamine salt raw material synthesized in the early stage, the pentazole hydroxylamine-based composite energetic microsphere prepared by the preparation method disclosed by the invention is more regular in morphology, higher in sphericity degree, obviously reduced in sensitivity and hygroscopicity, easier to prepare medicines and capable of being popularized to preparation of composite microspheres of other energetic materials.

The invention relates to the technical field of gas production materials, and discloses preparation and application of a high-nitrogen energetic gas production material, triazole has high-energy and multi-nitrogen characteristics, nitryl compounds have high energy, and the combination of triazole and nitryl compounds enables the gas production material to have the characteristics of large gas production rate, low-temperature combustion, less harmful gas and the like; the molecular structure contains a large number of N-N, C-N and C = N bonds and has high enthalpy of formation, meanwhile, the content of C and H in the molecule is low, the density of the energetic material can be improved, the electronegativity of nitrogen and oxygen atoms in the structure is high, and the energetic material is a painful energetic material and has high safety in the using process; compared with similar gas production materials, the prepared gas production material has the advantages that the gas production rate is greatly increased, the amount of solid residues is greatly reduced, the added adhesive has no corrosivity, the prepared gas production material is good in fluidity, the external additive can play a role in slagging, and the residues are not prone to being sprayed out.

A phase-stabilized ammonium nitrate (PSAN) explosive is provided, comprising PSAN prills and a fuel. The PSAN prills contain ammonium nitrate, a potassium salt, and an inorganic porosity enhancer.

The invention relates to the field of electromagnetic interference defense, and discloses a configuration method of an electromagnetic haze bomb filling material and an electromagnetic interference method.The method comprises the steps that current bird distribution information in an airport no-fly zone is obtained, and the current bird distribution information comprises a plurality of bird flock activity areas and a center point corresponding to each bird flock activity area; acquiring current meteorological data (wind speed and wind direction) of an airport and an electromagnetic haze elastic energy parameter (effective diffusion time), and determining an effective diffusion distance after the electromagnetic haze bomb is released; according to the center point, the wind direction and the effective diffusion distance corresponding to each bird flock activity area, determining an optimal release point and generating a launching instruction; and the optimal release point and the launching instruction are sent to an electromagnetic haze bomb launching control end, so that the electromagnetic haze bomb launching control end executes the electromagnetic haze bomb launching operation, and the filling material of the electromagnetic haze bomb is configured through the configuration method in the claim 1. Therefore, safe operation of aviation equipment is guaranteed.

This invention discloses a fluoride-modified liquid metal thermite and its preparation method, belonging to the field of thermite preparation technology. It utilizes Galinstan eutectic to prepare liquid metal; aluminum powder and liquid metal are synthesized using physical mixing and ultrasonic treatment to obtain liquid metal-modified aluminum; FeCl3·6H2O is added to a perfluorooctanoic acid aqueous solution and stirred, followed by a hydrothermal reaction; the resulting product is washed to obtain Fe(PFO)3; the liquid metal-modified aluminum is mixed with iron perfluorooctanoate and ultrasonically treated to obtain Fe(PFO)3@LM-Al; Fe(PFO)3@LM-Al and iron oxide are added to anhydrous ethanol and ultrasonically stirred to obtain Fe(PFO)3@LM-Al@Fe2O3. This invention, using the above method, raises the high-temperature thermal oxidation reaction temperature of aluminum powder to before the melting point of 660℃, achieving a breakthrough in the thermal mass transfer process of aluminum powder.

The present invention relates to an emulsion explosive cooling and conveying device and a production process thereof. The emulsion explosive cooling and conveying device and the production process thereof comprise a cold water trough, wherein a balancing pipe is installed on the cold water trough, a bracket is fixed in the cold water trough, side baffles are installed on the front and rear sides of the bracket, and transmission rollers are rotatably connected between the two ends of the side baffles. By arranging structures such as a suspension hook, a negative pressure box, a negative pressure hole, a submersible pump, and a water suction pipe, when an explosive roll falls on the suspension hook for suspension transportation, the submersible pump is used in conjunction with the water suction pipe to pump out cooling water in the negative pressure box, so that negative pressure is generated in the negative pressure box. The cooling water around the explosive roll quickly flows into the negative pressure box under the action of the negative pressure, and generates suction to adsorb the explosive roll on the inner wall of the suspension hook. In conjunction with the suspension transportation of the suspension hook, the problem of relative sliding between the explosive roll and the transmission plate chain during underwater transportation, which affects the underwater transportation efficiency of the explosive roll, is avoided as much as possible.

The present invention relates to a method for synthesizing an organic explosive, the method comprising the steps of: i) providing a first solution A; ii) providing a second solution B, selected such that an admixture of solutions A and B reacts together upon formation of the admixture to provide the organic explosive; iii) mixing solutions A and B and passing them through a flow reactor to produce the admixture, the flow reactor comprising a pipe, the inner diameter of which is selected to be less than a critical diameter of the organic explosive, thereby preventing detonation of the formed organic explosive in said flow reactor.

Provided are systems and methods for synthesis of metastable intermolecular composites, specifically energetic nanocomposites. The method may include dispersing a reductive fuel within a first aqueous solution and combining the reductive fuel solution with a second aqueous solution comprising a metal oxide and base to create a reductive fuel-metal oxide / base solution. The reductive fuel-metal oxide / base solution is mixed and solid material is filtered and collected from the mixture. The solid material is heated to obtain reductive fuel-metal oxide energetic nanocomposites. The ratio of base to metal oxide can be varied to achieve different structures of including core-shell or well-mixed nanocomposites. The reductive fuel may be aluminum nanoparticles, the metal oxide may be copper oxide, and the base may be ammonia. The method can be used for mass production of energetic nanocomposites and the structure of the energetic nanocomposites can be varied to tune the energetic performance of the energetic nanocomposites.

The invention discloses a smokeless and odorless firework oxidant which is prepared from the following components: zirconium dioxide, hafnium dioxide, silicon dioxide, manganese dioxide, iron oxide, arsenic trioxide and calcium oxide. Wherein the weight ratio of zirconium dioxide is not less than 90%; all the components are mixed, calcined and then subjected to wet ball milling, and a powdery material is obtained. The firework oxidizing agent is suitable for firework firework compositions, can be widely applied to firework spraying compositions and launching compositions, and is smokeless and odorless during combustion; the firework oxidant is not easy to decompose, good in stability, zero in friction sensitivity and impact sensitivity and suitable for high-automation-degree production, and the safety risk of production and transportation is greatly reduced.

The present invention provides a multi-station automatic loading system and method for mixed explosives, wherein the multi-station automatic loading system for mixed explosives includes: a docking robot; a mobile structure capable of driving the docking robot to move along a preset path; a plurality of loading stations arranged circumferentially along the preset moving path, each loading station being used to park a carrier structure; a plurality of charging guns, each loading station being provided with at least one charging gun; a plurality of detection structures arranged in a one-to-one correspondence with the plurality of loading stations, each detection structure being used to detect whether a carrier structure is present at a corresponding loading station; a controller controlling the movement of the mobile structure based on detection signals from the plurality of detection structures so that the docking robot picks up the charging gun at the corresponding loading station and docks with the corresponding carrier structure. The technical solution of the present application effectively solves the problem of operator injury during the explosives loading process in the related art.

The present disclosure discloses a gel-like energetic material, a preparation method, and a related system and device. The gel-like energetic material can be stably filled in a water gap for a long time without a housing and enables positive and negative electrodes of the gap to communicate with each other. A common formula is a mixture containing nitromethane, aluminum powder, and metal oxides. After initiating explosive device testing, friction sensitivity and impact sensitivity are both zero, and safety is extremely high. Formula compositions are insoluble or extremely difficult to dissolve in water, will not fail or decompose after soaked in water for a long time, and can still detonate normally under an action of a pulse current. After being filled in the water gap, the gel-like energetic material can generate a shock wave with a fixed amplitude, impulse and energy under drive of a pulse source with specific parameters.

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 invention finds that a liquid reactant matrix taking organic matters as main components can react with various organic hazardous wastes, harmful substances in the organic hazardous wastes are harmlessly treated, and meanwhile, a solid mixed product with a high additional value is prepared. According to the method, original waste is directly added, only a common heating and stirring device is needed, the treated waste can be prepared into a reducing agent, the energy density of the low-calorific-value organic hazardous waste is remarkably improved, harmful substances in the organic hazardous waste are subjected to harmlessness, meanwhile, a solid-state mixed product with the high additional value is prepared, and the environment is protected. The toxicity, reactivity and corrosivity of the organic hazardous waste are eliminated, no three wastes (waste water, waste gas and waste residues) are generated in the whole process, and the green chemistry principle is met. The reaction steps involved in the process are few, the treatment process is fast, the reaction conditions are simple, and the cost is saved.

The invention belongs to the technical field of initiating explosive device production equipment, and relates to a full-automatic feeding and discharging initiating explosive chemical combination system which comprises a supporting frame 1, a liftable stirring system 2, an overturning driving device 3, a reaction kettle device 4, a feeding system 5 and a discharging disc device 6, and the reaction kettle device 4 can be driven to laterally overturn from a vertical state and topple and discharge; by adopting the chemical combination system disclosed by the invention, full-automatic combination of various initiating explosives can be realized, and process parameters such as stirring speed, charging steps and speed, medium circulating temperature and the like can be adjusted by the control system, so that chemical combination production of various initiating explosives is realized, diversified production requirements are met, and the cost of production equipment is greatly saved; through the upper discharging mode of the device, potential safety hazards existing in a lower discharging valve of a traditional reaction kettle are avoided, direct contact between personnel and dangerous goods is avoided through the full-automatic production procedure, and the production intrinsic safety and the production efficiency are improved.

This invention discloses a eutectic explosive for laser-initiated detonation and its preparation method. The basic structure of the eutectic explosive includes one CL-20 molecule, two DATNBI molecules, and two acetonitrile molecules. The unit cell parameters of the eutectic explosive are α = 94.764°, β = 95.065°, γ = 107.066°, Z = 2, belonging to the monoclinic crystal system, space group P-1. The CL-20 / DATNBI eutectic of this invention exhibits low insensitivity and good thermal stability. It can be used as a new generation of metal-free laser-initiated explosives through a molecular-level hierarchical detonation structure, showing promising application prospects in the field of laser-initiated detonation.

The invention relates to the technical field of emulsion explosive production, in particular to an emulsion explosive production auxiliary feeding device which comprises a device frame and a stirring barrel, the inner side surface of the device frame is provided with a feeding base used for inputting raw materials, and the bottom surface of the feeding base is provided with a communicating pipeline used for controlling starting and stopping of raw material inputting. A switching disc for switching input raw materials is arranged on the surface of the outer side of the feeding base, a raw material box for controlling the input amount of the raw materials is arranged on the surface of the top of the feeding base, a buffer box is divided into an inner area and an outer area by an inner partition plate, the raw materials enter the inner area through a communicating hole, and an inner lifting seat lifts under the buoyancy action of the raw materials; according to the raw material feeding device, the feeding amount and the feeding time of each time of raw materials are controlled, automatic recovery is achieved after feeding, the cache area is filled again, leakage of the raw materials and invasion of external impurities can be effectively prevented, cleanliness of the production environment and purity of the raw materials are guaranteed, and meanwhile waste of the raw materials and possible safety risks are avoided.

The invention discloses an intelligent water-phase solution preparation system for emulsion explosive production, which comprises a water-phase preparation tank, a water-phase liquid storage tank, a solid raw material tank and a liquid raw material tank, and solid raw materials in the solid raw material tank are conveyed into the water-phase preparation tank through a spiral conveying device; a liquid raw material in the liquid raw material tank is conveyed into the water phase preparation tank through a liquid conveying pump; an image acquisition device is mounted on the visual window and is used for acquiring video data in a water phase configuration process; a video data analysis module is built in the processor to judge whether the water-phase solution in the water-phase preparation tank is saturated or not, and the processor controls the amount of the solid raw materials input into the water-phase preparation tank by the spiral conveying device according to the turbid state in the water-phase solution. According to the invention, the qualification rate of the preparation of the aqueous phase solution is greatly increased, the dispersibility and stability of the subsequent emulsification process are ensured, and the accuracy rate of the saturation of the aqueous phase solution reaches 99.2%.

A continuous mixing technology is used to develop a continuous process as an alternative manufacturing technology to sigma-blade batch mixer process for producing flexible explosive formulations (e.g. Flex-X) that is composed of energetic solids and additives without any solvents. This continuous mixer's chamber is partially filled under atmospheric pressure with significant overhead space, reducing energetic hazards. The continuous mixing machine can be comprised with one or two temperature zones, wherein all ingredients are added subsequently into the mixing chamber.

The invention relates to the technical field of expanded ammonium nitrate explosives, in particular to a preparation method of a high-free-flowing liquid-mixed expanded ammonium nitrate explosive, which comprises the following steps: adding porous granular ammonium nitrate accounting for 15-25% of the weight of a liquid-mixed ammonium nitrate base material into the liquid-mixed ammonium nitrate base material prepared after expanded crystallization; the preparation method of the porous granular ammonium nitrate comprises the following steps: preparing rice husk charcoal from rice husks in an inert atmosphere, dispersing the rice husk charcoal in ethanol, adding tetraethoxysilane, adjusting the pH value, and filtering, washing and drying after the reaction is completed to obtain a charcoal-silicon composite carrier; adding a nonionic surfactant and a silane coupling agent to pre-treat the ammonium nitrate feed liquid; adding a carbon-silicon composite carrier into the pretreated ammonium nitrate feed liquid, preserving heat, and uniformly stirring to obtain premixed liquid; and finally, carrying out spray drying to obtain the porous granular ammonium nitrate. The prepared expanded ammonium nitrate explosive has good free-running property and moisture absorption resistance, and is safe and reliable in explosion performance.

The invention discloses a preparation method of an emulsion explosive for explosive synthesis of a nano positive electrode material, and relates to the technical field of emulsion explosives, and the preparation method comprises the following steps: S1, sequentially adding deionized water, a water-soluble active agent, ammonium nitrate and a positive electrode source material into a water phase tank to prepare a water phase, heating to 90-95 DEG C, and keeping the temperature for later use; and S2, sequentially adding the compound oil and the emulsifier into an oil phase tank to prepare an oil phase, heating to 80-90 DEG C, and keeping the temperature for later use. And S3, adding the water phase and the oil phase into an emulsification mixer, emulsifying, adding a sensitizer, carrying out sensitization foaming, charging, cooling and packaging to obtain the emulsion explosive for explosive synthesis of the nano positive electrode material. The invention provides an innovative technical path and a key material basis for green and efficient synthesis of a high-performance nano battery material.

The invention discloses a reducing agent spraying device for an on-site explosive mixing and loading truck, which comprises a box body arranged at an opening at the upper part of a spiral stirrer of the on-site explosive mixing and loading truck, as long as the opening, and provided with a flow inlet plate and a flow jet plate; a first liquid inlet connector and a second liquid inlet connector are formed in the flow inlet plate; a plurality of jet holes are formed in the jet plate; a partition plate is arranged in the box body and divides the inner space of the box body into a first flow channel and a second flow channel which are isolated from each other. The plurality of jet holes comprise a first group of liquid outlet holes and a second group of liquid outlet holes, the first group of liquid outlet holes are communicated with the first flow channel, and the second group of liquid outlet holes are communicated with the second flow channel; jet flow holes in the first group of liquid outlet holes and the second group of liquid outlet holes are uniformly distributed in an array along the length direction of the spiral stirrer. The length of the box body is set to be equal to that of the opening in the upper part of the spiral stirrer, and the two groups of jet holes are uniformly distributed and arrayed in the length direction of the spiral stirrer, so that uniform spraying of two reducing agents matched with the structure of the spiral stirrer is realized.

The present invention relates to methods and processes to prepare pre-mixed compositions that can be combined to form pyrotechnic compositions in mixed multiple parts. In exemplary embodiments, a binder curing agent ingredient is premixed with pyrotechnic fuels and can also include other pyrotechnic additives and processing aides. Other binder ingredients such as a binder resin can be premixed with the pyrotechnic oxidizers and can also include other pyrotechnic additives and processing aides. The resulting mixtures are not explosive and are much safer to handle and easier to store for extended shelf-life over a final pyrotechnic composition. Further, the pre-mixed mixtures can be stored in bulk until needed and rapidly combined to achieve the final pyrotechnic composition.

The invention relates to a novel efficient cyclic mixing preparation process of a high-precision delay powder, and solves the problems of low mixing efficiency and poor powder quality of the existing process. An adopted device comprises an automatic feeding system, an automatic mixing system, a feed liquid circulating system, a cooling system, an automatic discharging system and an automatic cleaning system. The process comprises the following steps: S101, automatic feeding; s102, high-efficiency circulating mixing is carried out; s103, automatic discharging is carried out; and S104, automatic cleaning is carried out. Compared with the prior art, the preparation process is convenient to operate and short in mixing period, so that the mixing efficiency is greatly improved; when the efficient circulating mixer is adopted for mixing, impurities are few, chemical components are uniformly mixed, and the chemical preparation quality can be improved, so that the delay precision of the chemical is greatly improved, and the targets of stable combustion process, accurate delay time and the like are achieved; continuous circulating mixing production can be achieved, man-machine isolation operation and automatic ball material separation can be achieved, and the safety of the preparation process is guaranteed.

The invention discloses a smokeless firework material and a preparation method thereof. The smokeless firework material comprises the following components: 60%-75% of nitrocotton, 5%-10% of nitroglycerin, 5%-25% of a plasticizer and 1%-2% of a stabilizing agent. The plasticizer is triacetin, dibutyl phthalate or diethyl phthalate, and the plasticizer is dibutyl phthalate or diethyl phthalate; the stabilizing agent is a methyl centralite agent or an ethyl centralite agent. The method comprises the following steps: weighing the raw materials according to the formula proportion, and preparing a mixed medicine material by utilizing a jet absorption process; then, after the treatment of a water expelling process, preparing into a drug group; and crushing the mixture into particles with the granularity of 80-150 meshes by using a hammer crusher, adding the particles into the smokeless firework powder according to the proportion of 20-40%, and mixing the particles with the oxidizing agent and the metal powder for use. After the smokeless firework powder is added into the smokeless firework material, the smokeless firework material has the characteristics of less smoke during combustion, less residue and the like.

The present application relates to the technical field of puffed ammonium nitrate explosive production, and particularly relates to a preparation method of low-explosive-velocity high-explosive-heat puffed ammonium nitrate explosive for explosive welding; a small amount of glycerol is added in the puffed composite fat to prevent the explosive from being easily moisture-absorbed and clustered in field operation, and meanwhile, the explosive heat of the explosive is increased; in step 3, calcium sulfate and ammonium sulfate are mixed according to a mass ratio of 1:3 to serve as a dispersing agent, and the puffed ammonium nitrate explosive is diluted, so that the puffed ammonium nitrate explosive has the characteristics of low-explosive-velocity and good flowability; in the present application, a conventional dispersing agent component such as yellow stone powder is not used, but calcium sulfate and ammonium sulfate are mixed according to a mass ratio of 1:3; under this ratio, the explosive heat of the explosive can be further improved under the condition of low-explosive-velocity, and when applied to explosive welding, the interface bonding rate of the explosive welding can be improved.

A processing vessel (1) provided with a material inlet (2, 3, 4, 5) and a processed material outlet (25) wherein the material flows continuously through the vessel which is split into a series of zones (6, 7, 8) through which the material passes wherein the zones are shielded from each other by controlling the rate at which the material flows and an increasing level of vacuum is applied in consecutive zones and the system is provided with acoustic energy which imparts energy to the process material by virtue of the contact between the zone dividers and the process material and processing material in such a vessel.

The invention relates to the technical field of combustion catalysts, in particular to a bismuth resorcinate combustion catalyst and a preparation method thereof.The preparation method comprises the steps that resorcinic acid is dissolved into a sodium resorcinate solution with an alkaline sodium-containing compound solution, and then the sodium resorcinate solution and a bismuth nitrate solution are heated and then conveyed to an ultrasonic mixing reactor; and carrying out aging, filtering, washing and vacuum drying on the bismuth resorcinate precipitate so as to obtain the combustion catalyst. Reacting liquid generates bismuth resorcinate precipitate under the synergistic effect of screen mesh macromixing and ultrasonic micromixing in the mixer.

This invention discloses an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank and a recovery tank. The mixing tank has a lid, and a gas pipe is vertically inserted into the lid. Several identical aeration heads are installed on the gas pipe inside the mixing tank. An inlet pipe and an outlet pipe are installed at the upper and lower ends of the mixing tank, respectively. A conduit is connected to the lid, and the outlet end of the conduit is connected to the recovery tank and extends into its lower interior. A second liquid outlet pipe is vertically installed inside the recovery tank. A pressure gauge is installed on the lid. Gas valves are installed on both the connecting pipe and the conduit. This invention relates to the field of aqueous phase preparation technology. Steam with a certain pressure and temperature is introduced into the mixing tank using a pump, a gas pipe, and several aeration heads. The steam's turbulence and foaming action stirs, mixes, and heats the materials in the mixing tank, resulting in uniform mixing in all parts.

Disclosed are an ignition powder, a preparation method therefor and a use thereof, and an airbag gas generator, which belong to the technical field of ignition powders. The raw materials of the ignition powder include the following components in percentages by mass: potassium perchlorate. 30%˜50%; basic copper nitrate: 5%˜20%; a fuel: 15%˜60%; a metal oxide: 1%˜25%; and a metal powder: 1%˜25%, wherein the metal powder is at least one of a titanium powder, a magnesium powder, a copper powder, an iron powder, a zirconium powder, a hafnium powder, a tungsten powder or a silicon powder.