Method of producing high-filled solid rocket propellant of ballistic type |
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IPC classes for russian patent Method of producing high-filled solid rocket propellant of ballistic type (RU 2412925):
 Method to produce composite solid propellant / 2407728
Method is realised in mixing plant, consisting of preliminary, upper and lower mixers. Initially excess of liquid-viscous components is dosed into preliminary mixer, including mixing in upper mixer. Then mixing is simultaneously started in preliminary mixer, and liquid-viscous and powdery components are synchronously dosed in amount of 20-40% of upper mixer charge volume. Afterwards dosing and mixing in preliminary mixer are stopped, and components are mixed in upper mixer for 5-10 minutes. Ratio of components mix in upper mixer is corrected by lacking amount of powdery components. Corrected mixture of components is mixed in upper mixer for 10-25 minutes, and synchronous dosing of liquid-viscous and powdery components is restored and mixed serially in preliminary, upper and lower mixers of mixing plant.
 Gas-generating fuel for downhole apparatus / 2401254
Gas-generating fuel contains an oxidising agent and fuel. According to the invention, the oxidising agent is ammonium perchlorate and the fuel is a metallic fuel in form of aluminium and a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent -50.0-79.0, thermoplastic fuel 20.0-40.0, metallic fuel 1.0-10.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
 Gas-generating fuel for downhole apparatus / 2401253
Gas-generating fuel contains an oxidising agent and fuel. The oxidising agent is ammonium perchlorate and the fuel is a thermoplastic fuel in form of a chlorine-containing thermoplastic polymer or its mixture with a chlorine-containing low-molecular weight compound in ratio of 1:0.1-1:2, with the following ratio of components, wt %: oxidising agent 60.0-80.0, thermoplastic fuel 20.0-40.0. The chlorine-containing thermoplastic polymer is chlorinated polyethylene or polyvinylchloride or chlorinated polyvinylchloride or chlorosulphonated polyethylene. The chlorine-containing low-molecular weight compound is chlorinated paraffin wax or methyl chloroform, or tetrachloroethane or perchloroethylene or dichlorobenzene or hexachloro-p-xylene. The fuel also contains a process additive - calcium or zinc stearate in amount of 0.05-1.0 wt %.
 Gas-generating fuel for downhole apparatus / 2395482
Invention relates to solid gas-generating solid fuels. The gas-generating fuel for downhole apparatus contains ammonium perchlorate as an oxidising agent, synthetic hydrocarbon rubber which is plasticised with hydrocarbon oil in mass ratio of 1:1…1:5 as fuel, aluminium, process additives, a vulcanising agent and ammonium chloride as a gas-generating additive.
Method of making mixed solid fuel charge / 2395479
Invention relates to technology of making charges from mixed solid fuel. The method of making a mixed solid fuel charge involves grinding, fractionation and mixing different fractions of an oxidising agent, preparation of a mixture of binder with metallic fuel and additives, preparation of a mixture of hardener components and preparation of a fuel mixture, moulding, polymerisation, pressing and flaw detection of the charge. At the step for preparing a mixture of binder with metallic fuel and additives, rubber - oligomer polyvinyl isoprene urethane with terminal epoxy groups is divided into two portions. One portion of the rubber and a polymer chain extension - aniline is used to prepare a semi-finished product and is mixed with the second portion of the rubber and components of the mixture of binder with additives.
Gas-generating composition for producing breathable gas / 2394801
Invention relates to pyrotechnics. The gas-generating composition for producing breathable gas contains silicon as fuel, cellulose nitrate or sodium metasilicate, or magnesium cement as binder, oxidising agent which forms nitrogen in combustion products, in form of nitrates of alkali or alkali-earth metals or their mixture with potassium perchlorate or ammonium perchlorate in ratio which ensures absence of hydrogen chloride in the combustion products.
 Method of making articles from mixed solid rocket fuel / 2394011
Invention relates to technology of making articles from mixed solid rocket fuel. The method of making articles from mixed solid rocket fuel involves moulding articles into a case through pressure moulding of fuel mass on a continuously running installation with auger unloading, holding the moulded articles under pressure during operation of the auger with simultaneous cooling of the fuel mass in the auger by feeding a heat carrier into the housing of the auger, cutting off the fuel mass in the case using a cutter and press curing. Cooling of fuel mass in the auger feeding heat carrier into the housing of the auger begins 3-20 minutes before the end of moulding the article. After ageing of the moulded article, pressure in the case of the article is established in accordance with a mathematical formula by smoothly varying rotational speed of the auger. Further, without changing the rotational speed of the auger, the cutter is closed and after 0.5-1.0 minutes, rotational speed of the auger is smoothly reduced to zero and the auger is switched off. The stroke speed of the piston of the cutter during its closure is preset at a value not greater than 0.15 m/min.
 Solid fuel low-temperature gas-generating composition / 2393140
Invention relates to solid fuel gas-generating compositions. The solid fuel low-temperature gas-generating composition contains ZV ammonium nitrate, guanylurea dinitramide and methylpolyvinyltetrazole.
 Gas-generating fuel for downhole apparatus / 2393139
Invention relates to gas-generating solid fuels. The gas-generating fuel for downhole apparatus contains ammonium perchlorate as an oxidising agent, synthetic hydrocarbon rubber plasticised with hydrocarbon oil as fuel, lecithin, epoxy resin, ortho-tert-butyl-para-cresol or tertiary butylphenol as a processing additive, paradinitrosobenzene or quinol ether as a curing agent, ammonium chloride as a gas-generating additive. The synthetic hydrocarbon rubber used can be isoprene, butadiene, ethylenepropylene, isoprenedivinyl or butyl rubber and the hydrocarbon oil can be transformer, aviation or industrial oil.
Low-temperature solid propellant / 2389714
Invention relates to making gas-generating low-temperature solid propellants. The low-temperature solid propellant contains ammonium nitrate as an oxidising agent, SKDM-80 rubber as polymer fuel, di-N-oxide-1,3-dinitrile-2,4,6-triethylbenzene as a hardener and dinitrophenoxyethanol as a combustion rate catalyst.
Method to produce composite solid propellant / 2407728
Method is realised in mixing plant, consisting of preliminary, upper and lower mixers. Initially excess of liquid-viscous components is dosed into preliminary mixer, including mixing in upper mixer. Then mixing is simultaneously started in preliminary mixer, and liquid-viscous and powdery components are synchronously dosed in amount of 20-40% of upper mixer charge volume. Afterwards dosing and mixing in preliminary mixer are stopped, and components are mixed in upper mixer for 5-10 minutes. Ratio of components mix in upper mixer is corrected by lacking amount of powdery components. Corrected mixture of components is mixed in upper mixer for 10-25 minutes, and synchronous dosing of liquid-viscous and powdery components is restored and mixed serially in preliminary, upper and lower mixers of mixing plant.
 Method for destruction of solid propellant charge / 2406069
Invention relates to disposal of solid propellant rocket engine (SPRE) with tightly fixed solid propellant charge, neutralisation of solid propellant (SP) wastes. In proposed method case of rocket engine with charge without covers is placed into tight reservoir, filled with destructive mixture until the change is fully submerged. Pressure from 0.3 to 1.5 MPa is developed, as well as temperature of not lower than 120°C, but not exceeding temperature of thermal decomposition of propellant, and maintained until complete structural destruction of charge. For this purpose destructive mixture is aqueous solution of surfactants and mineral salts. Pressure in reservoir is developed by means of solution injection by piston pump, and temperature - by coolant supply into reservoir jacket.
 Method for manufacturing of ammunition charge / 2405761
Invention refers to defence technology, in particular to ammunition loading. Method includes serial supply of explosive substance (ES) portion into ammunition body and pressing of each one by means of puncheon. Besides ammunition body is arranged in matrix, and prior to supply of each portion of ES, guide bush is installed in ammunition body, and its manufacturing ends by pressing-off of ES briquette in ammunition body. Prior to pressing-off of ES briquette, between it and puncheon, gasket is arranged from compressible material, preferably, cardboard, with tightness of 0-0.015 and thickness of 0.003-0.03 of value of inner diametre of ammunition body in area of gasket placement, and each portion of ES is pressed down to specified density of charge under pressure, value of which is more than tension in lower layer of ES, which occurs during ammunition firing under maximum loads.
 Method of mixing components of explosive composition / 2401825
Invention relates to a method of mixing components of an explosive composition. The method involves batching liquid-viscous components, batching powdered components and mixing them in a vertical planetary mixer. When batching, portions of powdered components are controlled depending on viscosity of liquid-viscous components of the explosive components. When viscosity of liquid-viscous components is equal to 30-100 Pa·s, the ratio of the weight of portions of the powdered components to the weight of the liquid-viscous components is kept between 1:1.5 and 1:2.5, and when viscosity of the liquid-viscous components is over 100 Pa·s, this ratio is kept between 1:3.0 and 1:3.5.
 Method for production of industrial explosives (ie) / 2401178
Invention relates to the field of production of industrial explosives (IE) with application of mobile inventory complex, comprising supply cylinder-conic reservoirs with feeder screws and mixing-charging device, arranged with the possibility of relocation by means of motor or railway transport to the area of blast-hole drilling works. Mixture of two or more components of explosives, including finely ground cured stock of recycled car or tractor tyres, is supplied into vessel of mixing-charging device. Mixture of components is previously mixed by a pair of upper opposite and synchronously rotated screws with their even reciprocal motion. Bottom screw is used to move mixture in opposite direction to produce even mixture of explosives. Produced homogeneous mixture of explosives is supplied with the help of injecting compressed air into wells prepared for blast-hole drilling works or due to dynamic head produced by bottom screw, directly into plastic shells of packaged charges of explosives. Provides for reduced prime-cost of production and continuous manufacturing of explosive, and provides for possibility to manufacture explosive charges directly in area of their application.
 Method for packing of powdery explosive substance / 2399605
Method includes remote installation of bag with explosive substance into tilter container. Prior to pouring of explosive substance into receiving mobile container, one bag of explosive substance is laid onto cradles of two trolleys installed with their wheels onto guides, which are rigidly fixed to platform of hydraulic lift and are arranged in parallel to axes of tilter containers, hydraulic lift platform is raised and fixed. Position of trolley cradles is maintained at the level of tilter containers, but not higher than 10 mm, trolleys are moved and fixed with stops at the distance from 5 to 20 mm between edges of trolley cradles and tilter containers. Pusher drives are switched on remotely, and bags with explosive substances are moved from trolley cradles into tilter containers with the help of stems and disks fixed to drive, at the same time drives are switched off automatically, then drives are switched on for reverse motion, and stems with disks are returned into initial position, with further automatic disconnection of drives, then pneumatic cylinders are used to serially and remotely rotate containers of tilter, bags with explosive substances are emptied into receiving mobile container.
 Method of producing industrial explosive material / 2399604
Method involves preparation of components, successive mixture and grinding in three bead mill - mixers of blasting substance, oxidising agent, flame arrester and then taking the mixture for cartridging. In the first mixer, complete volume of the blasting substance and a partial volume of flame arrester are mixed in ratio of 1:1. The composition is also ground up in the second mixer to defined fineness. The prepared mixture together with deficient components is fed into the third mixer for final mixing and grinding.
 Method of preparing emulsion of water in oil type for emulsion explosive composition and device for its preparation / 2396238
Invention relates to technology of emulsion explosive substances. Method of preparing water in oil type emulsion for emulsion explosive composition includes preparation of water solution of salts of oxidisers and fuel phase, which consists of fuel and emulsifier, and mixing of obtained water solution of salts of oxidisers and obtained fuel phase in static mixer. Water solution of salts of oxidisers is prepared by mechanical mixing, exposure to ultraviolet waves with frequency 18-150 kHz by means of submerged metal waveguides and recirculation of flow through ultrasonic flow disperser with frequency of ultrasonic waves 18-150 kHz. Fuel phase is prepared with flow recirculation. Obtained mixture of water solution of salts of oxidisers and fuel phase is dispersed in ultrasonic flow disperser with frequency of ultrasonic waves 18-150 kHz. Also claimed is device for said method realisation.
 Armored insertion charge of rocket solid propellant / 2395480
Invention relates to armored insertion charges of rocket solid propellants (RSP). Proposed charge represents RSP grain with armor coat on its surface. Said armor coat represents a self-adhesive δ-thick tape based on softened rubber that inhibits ignition of the grain armored surface for preset time of charge ignition. Note here that tape length exceeds grain surface circumference by at least 3δ. Said tape is wrapped around said grain through 360° with rebate joint along its length formed by skewed cuts at angle α, not exceeding 45°, to grain surface.
Method of making mixed solid fuel charge / 2395479
Invention relates to technology of making charges from mixed solid fuel. The method of making a mixed solid fuel charge involves grinding, fractionation and mixing different fractions of an oxidising agent, preparation of a mixture of binder with metallic fuel and additives, preparation of a mixture of hardener components and preparation of a fuel mixture, moulding, polymerisation, pressing and flaw detection of the charge. At the step for preparing a mixture of binder with metallic fuel and additives, rubber - oligomer polyvinyl isoprene urethane with terminal epoxy groups is divided into two portions. One portion of the rubber and a polymer chain extension - aniline is used to prepare a semi-finished product and is mixed with the second portion of the rubber and components of the mixture of binder with additives.
Method of phlegmatization of blasting powder / 2244699
The invention is dealt with the field of production of blasting powder. The invention offers a method of phlegmatization of blasting powder, in particular, fine-grained pyroxylin blasting powder, spherical blasting powder, obsolete fine-grained pyroxylin blasting powder or obsolete spherical blasting powder. The method of phlegmatization of blasting powder provides for a treatment of the blasting powder by a phlegmatizator in a water medium. For that purpose a reactor is filled up with water, then they load blasting powder, heat up and exercise a one-shot introduction of a phlegmatizating agent made in the form of a water emulsion. In the capacity of the phlegmatizating agent is used dibutyl phthalate or a mix of diphenylamine and dinitrotoluene, or a mix of centralite №1 and dinitrotoluene, or a mix of centralite №2 and dibutyl phthalate. The invention allows to utilize the obsolete blasting powders, to increase safety of process of phlegmatization of the blasting powders, to reduce durations of the process of phlegmatization of the blasting powders, to improve ballistic performances of produced blasting powders.
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FIELD: process engineering. SUBSTANCE: invention relates to rocketry. Proposed method comprises mixing propellant components in aqueous medium, squeezing, rolling, drying and charge moulding in moulds. Note here that propellant chips produced in squeezing, are retuned in amount of 5…15% of processed bulk into squeezer for reuse, which adds to efficiency and safety. EFFECT: efficient production of high-filled solid rocket propellant. 1 tbl
The invention relates to the field of rocket technology, namely the method of manufacturing a solid propellant ballistic type (TRT) and can be used in the development and production of TRT and charge out of it. Modern weaponry requires the establishment of TRT with high energy and ballistic characteristics, the provision of which is achieved, usually through the use of a significant amount of fillers of different functional purpose, such as combustion modifiers, powerful explosives, and which are characterized by increased content of nitrofuran as the most energy-intensive components of TRT. In virtue of these features of highly fuel are high level of plasticity, which is the deterioration of rheological characteristics. During the processing of such compositions on a standard technological equipment ballistic proceedings, there are a number of difficulties, especially in the phase of extraction. In this regard, the practical use of highly TRT requires improvement of existing methods of producing fuels ballistic type. A known method of manufacturing TRT includes a mixture of fuel components in the aquatic environment, the extraction of the obtained fuel mass, rolling - tableting fuel, drying and risovanie charges through a forming press tool (Smirnov L.A. "The equipment for manufacture of ballistic powders in screw technology and charge of them", M, 1997, p.51-52, 86-92). This method adopted by the authors for the prototype, the lack of which is the imperfection of technological process of extraction of the fuel mass varying degrees of filling and plasticization when using standard process equipment. The extraction of the fuel mass is the simultaneous flow in the channel of the squeezing screw screw press processes of mechanical compression seal mass filter and remove excess water. The semi-finished product obtained in Timna apparatus, is a pressed mass to a moisture content of 6-12% in the form of granules of cylindrical shape with a diameter equal to the outlet forming a ring lattice, and length determined by the number of blades and the rotational speed of the screw (15 - 21/0 - 5...15 mm). The technical name specified pellet - fuel "crumb". During the processing of the regular ballistic fuels dominated by stable operation of centrifuging apparatus with an acceptable level of stress and performance. In the processing of highly filled fuels in some cases there is a violation of the stable operation of the press, which is manifested in performance, the spinning mass together with screw and lock filter grilles that, as a rule, maint who allegedly forced stop process for cleaning the working bodies of the press. As a result of this work squeezing apparatus is sharply reduced performance phase extraction and increases the severity of the ongoing process. Technical task patentable the invention to provide a method of manufacturing a highly filled TRT ballistic type, providing continuous, stable and secure operation phase extraction using standard process equipment. The technical result of patentable invention is that a method of making highly filled TRT includes a mixture of fuel components in the aquatic environment, the extraction of the fuel mass, rolling, drying and pressing charges through a forming press tool and differs in that phase extraction derived fuel "crumb" in the amount of 5...15% return in the release apparatus for reuse. Next, the process carried out in a known manner: rolling - drying - pressing. The invention consists in the fact that during the processing phase extraction of highly TRT ballistic type to improve its rheological characteristics and a stable operation of squeezing the press obtained during the extraction of the fuel "crumb" in the amount of 5...15% return in the release apparatus for reuse. The first portion of the fuel "to the oshki" get typically, when unsteady and unstable modes of squeezing apparatus due to the high plasticity of the original fuel mass. However, after you enter the first portions of the fuel "crumbs" pressing process is normalized and the further processing press release is stable, because the return fuel "crumb"with lower humidity (6...12%) and more dense structure compared to the original weight, the humidity of which is at level 60...70%, improve the technological properties of the processed fuel mass by increasing its stiffness and increase filtering capacity due to the provision of higher porosity due to the different degrees of density of the initial mass and fuel "crumbs". In General, when introducing fuel "crumbs" ensures more stable operation of the squeezing apparatus, increases the performance phase, reduces the danger of the process and improves the quality of the obtained semi-finished product, is its higher density, solidity and uniformity of moisture. Quantitative limits on the input fuel return "crumbs" due to the fact that the content is less than 5% do not provide the required rigidity of the press system, and more than 15% leads to the increase of current load on the drive squeezing the press of the above requirements is been created norms (> 125). Examples of implementation of patentable method: Example 1 Manufactured fuel mass of highly TRT (40% filler) with a humidity of 60...70% in the amount of 1000 kg is subjected to a pressing apparatus FOR 125.1000 when modes:
After receiving the first portions of the fuel "crumbs" and return it back to release the device work squeezing apparatus is stabilized, the current load level is aligned, the performance of the device increases. At follow-up work on imnogo apparatus is returned in the specified amount of fuel "crumb" evenly dosed into the fuel mass, for example, 10 kg per 100 kg of the compressed fuel mixture. Other examples are given in the table, the performance of squeezing apparatus which is shown in the output in a stable mode. Examples of implementation of patentable method shows that the return fuel "crumbs" for re-use helps to ensure the normal operation phase extraction: the device works with the design performance, acceptable level of current load and ensure uniform moisture content within the required limits. Reduction (example 1) or increase (example No. 2) fuel "crumbs" in relation to the compressed fuel mass leads to unstable operation of squeezing apparatus, as evidenced by the low performance of the device, the wide range of current loads and humidity. The implementation of the method executed in the BFC "Perm powder plant processing factory fuel mixtures.
A method of manufacturing a filled solid propellant ballistic type, comprising a mixture of fuel components in the aquatic environment, the extraction of the fuel mass, rolling, drying and pressing through a forming press tool, characterized in that during the spin cycle derived fuel "crumb" in the amount of 5...15% of the processed mass return back to release the machine for reuse.
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