The spraying of powder materials and device for its implementation |
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IPC classes for russian patent The spraying of powder materials and device for its implementation (RU 2120826):
 Siphon dispenser / 2112218
The invention relates to dispensing devices and liquids can be used in the foundry industry, food and chemical industries for dosing the usual liquids and liquids after dosing which requires washing of the dispenser, and the dispenser can be operated in automatic or manual mode
 The liquid dispenser / 2108548
The invention relates to mechanical engineering and can be used in many industries and services for the automatic conversion of the continuous fluid flow with a relatively small consumption in discrete supply given its volume substantially greater consumption
 Dispenser feeder / 2107264
The invention relates to the field of dispensing and transfer of fine powders with an adjustable mass flow, in particular for the submission of oxides of highly enriched uranium in a fiery fluorination reactor
 The method of dispensing fuel, a device for its implementation, a method of dispensing fluid and a device for its implementation / 2102619
The invention relates to a speed control fuel supply to the internal combustion engine, preferably direct injection
 Device for dispensing fine materials / 2091719
The invention relates to dispensing devices and can be used in metallurgy for dispensing fine materials: modifiers, deoxidizers and other additives, mainly in the melting equipment
 Toplivopitanija device of vehicle / 2081398
The invention relates to the instrument and is used primarily for measurement of fuel on Board the aircraft and other moving objects such as ships and vessels
 Device for dispensing bulk materials / 2079817
The invention relates to a device for measuring the flow rate of bulk material volumetric doses and can be used in various fields of national economy
 A device for applying powder material to products / 2111065
The invention relates to a device for applying a product polymer protective coatings from powder material in an electrostatic field and can be used for anti-corrosion coatings on the outer and inner surfaces of the pipes
 Device for coating / 2089665
The invention relates to the metallurgical industry, in particular, to equipment for applying coatings to products rolling mills (pipes, reinforcing bars, polygons, angles, and so on)
 Device for applying a coating of powder materials / 2087207
The invention relates to a device for coating the inner walls of long products in blind holes and through holes and can be used in metallurgical, machine-building and metal cutting industries
 Way thin dispersing liquids or powders in gaseous environments and device for its implementation / 2053858
 The dusting of granular materials / 2011430
The invention relates to a technique of spraying powders of a wide class and can be used to create a uniform cloud of spray in a confined space with the modeling of the dust diseases for disaggregation and translation into aerosol powder materials in the analysis of their dispersed state, as well as for simulation of aerosols in the laboratory of biomedical research in various industries associated with the development of maximum permissible concentration (MPC) in experiments on laboratory animals
 The dusting powders and device for its implementation / 2007225
The invention relates to a technique of spraying powders in air and gas environment and can be used for disaggregation and translation into aerosol powder materials in the analysis of their particle size distribution, to obtain a model of aerosols in laboratory studies in the chemical and metallurgical industries, to create a uniform spray in a confined space with the modeling of dust diseases, and also for introduction of drugs through the respiratory
 Device and nozzle for cold powder spraying / 2261763
Device for applying metal alloy coatings on article by cold spraying method has nozzle. Nozzle comprises channel for powder spraying having convergent and divergent parts. At least divergent channel part is formed of polybenzimidazole. In accordance with the first embodiment convergent channel part is also made of polybenzimidazole.
 Gas flow distribution device for polymeric powder material sprayer and throttle valve therefor / 2262391
Gas flow distribution device has inlet flow channel, a number of controllable working channels communicated with incoming flow channel and provided with inlet fittings and throttle valves. Throttle valves have needles installed in supplementary bleeder channels crossing above working channels. Incoming flow channel is formed as a bleeder in gas flow distribution device body having branches connected with each working channel. Each branch and supplementary control bleeder channels thereof are also made as bleeders. Diameters of working channel branches in direction from incoming flow inlet correspond to the following relations: S3>S2≥S1, S3>S2+S1, where S is cross-sectional area of corresponding working chamber branch. Numbers correspond to levels of each working chamber branch location in direction from the inlet. Throttle valve also has control screw provided with throttling needle installed in body orifice by thread. Control screw is provided with rest arranged in control screw installation area and adapted for body orifice sealing. The rest is fixedly secured to control screw outside the body. Control screw also has bush made of wear-resistant resilient elastic material, for instance of silicone. Inner bush diameter is equal to screw rod diameter, height thereof is equal or slightly more than that of control screw rod installed in position in which control screw extends for maximal possible distance from the body. Silicone bush is arranged between the body and control screw rest coaxially with control screw rod. Washer for pressing the bush against the body is fixedly installed on device body. Central washer part has inner conical profile extending along longitudinal axis of symmetry thereof. The washer faces the body by major base of conical profile having lesser diameter, which is equal or slightly smaller than outer silicone washer diameter.
 Powder feeder / 2263725
Powder feeder comprises casing-chamber, powder hopper arranged in upper part of casing-chamber and equipped with discharge opening, which is aligned with annular charging channel of rotating disk provided within casing-chamber, and drive arranged in lower part of casing-chamber. Ejector is disposed on casing-chamber at opposite side of hopper and equipped with supersonic nozzle and intake branch pipe of intake chamber. Intake branch pipe is aligned with annular charging channel of rotating disk. Agitator mounted within powder hopper is equipped with drive.
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(57) Abstract: The invention can be used for physico-chemical analyses in the laboratory and factory tests. In the process of a pneumatic atomizing gas serves high-speed pulse portions. To provide turbulence in the gas flow in the process it is subjected to repeated rapid expansion. Device for spraying at the same time provides the dosing of the powder material from the feed hopper with metering nozzle, a line connected to a source of compressed gas and transport route. A portion of the powder formed during its flow from the feed hopper in a calibrated nozzle, located in the highway, finally sprayed into the receiving hopper. Of the invention provide the maximum degree of fragmentation of the particles when removing the restriction on the amount of servings. Device for atomizing and dispensing powder materials has a high reliability. 2 S. p. f-crystals, 1 Il. The invention relates to the spraying and dispensing powder materials and can be used for physico-chemical analysis using microscopy in the laboratory and Zavods the one farm. Various methods and devices for pulsed atomization and dispensing powder materials (SU, 604771 A, B 65 G 53/04, 1978 - [1]; SU, 648280 A, B 05 B 7/14, 1979 - [2]; SU, 1148646, B 05 B 7/14, 1985 - [3]. However, they have insufficient reliability and accuracy. The main shortcomings are largely due to the use of mechanical devices for the feeding of powder materials. This leads, for example, jamming devices during their operation due to the ingress of powder between the moving parts of the metering device, especially when increasing the gap between them as a result of wear of the moving parts, which also leads to the violation of the dosing portion of the powder; it's even possible to break the elastic section of the transport pipeline. This is especially important when you work with submicron powder substances. The closest to the technical nature of the claimed method is the spraying of powder materials known from (3). The known method is sputtering source material air shocks. A device for atomizing and dispensing powder materials, the closest to the claimed technical nature (3). The known device comprises a consumable Boo is built in highways and connected to the hopper, an additional channel. A disadvantage of the known method and device is that they are complex and do not provide sufficient reliability and controllability of the process. The technical result that can be obtained by use of the invention is to simplify the method and a spraying device and dispensing powder materials, improve reliability and ensure the controllability of the process. The essence of the claimed method, the spraying of powder materials is that in contrast to the known method, the process is carried out strictly dosed high-speed portions of the gas during the repeated expansion of the gas flow in conditions of turbulence in the past. The characteristics of the gas flow is adjusted depending on the physicochemical properties of the powder, and the amount sprayed and dozed. To solve this problem the claimed method is carried out in the device, which is in contrast to the known device includes a hopper, the supply valve of the specified high-speed portion of gas in the transport line and an additional control nozzle, which is connected by highway with the gas source and transport is SS="ptx2">The device comprises a feed hopper 1 with a powder material 2, the transport line 3, the source of compressed gas (air) receiver 4, the main valve 5 for air supply and auxiliary valves 6 and 7, a calibrated nozzle 8 located in the transport line 3 (a and B), and an additional nozzle 9, and a hopper (camera spray or receiver doses) 10, which can be located depending on the destination as vertically (see drawing) and horizontally (not shown); 11 - a portion of the powder material, 12 - channel. The portion is determined by the physico-chemical properties of the used powder material (for example, the angle of repose is determined by the coefficient of friction and so on). The main 5 and 7 auxiliary valves provide automatic dispensing gas during rapid firing both when opening and when closing, i.e., are bystroletyaschimi valves. The claimed method and the device are as follows. Powder material 2 from the feed hopper 1 is fed through the channel 12 in a calibrated nozzle 8 of the transport line 3, thereby forming the sprayed portion 11 of the powder material 2. If necessary, zavislan 7 in the hopper 1 through the additional nozzle 9. Then actuates the main valve 5, by applying a strictly defined high-speed portion (stream) gas from the receiver 4 in the transport line 3A. Depending on the physicochemical properties of the powder material, the auxiliary valve 6 at this point can be opened. Then a portion of the powder 11 under the action of the high speed jet and transported simultaneously mixed in the thoroughfare, and then gets into the chamber of the sputtering 10, where the final spray. At the same time part of the portion of gas falls into a hopper through the channel 12, by sparging (loosening) of the powder material 2, is loaded into a hopper 1. The value of the transported portion of the powder material is determined by the initial gas pressure, reaction time (rapidity) of the main valve 5 and physico-chemical properties of this powder material. Spraying is provided due to a sharp repeated expansion and simultaneous intensive turbulence in high-speed gas flow. The repeated expansion of the gas stream is carried out by changing the cross-section line 3B and the cross-section of the atomising chamber 10. In contrast to the known technical solutions for the use of the claimed invention allows to exclude mechanical metering valve with actuator, which increases reliability and simplifies the device. In addition, remove restrictions disperse composition and size of servings of powder. Together with the expanding technological and functional features of the claimed method and device. The possibility of simultaneous atomization and dispensing powder materials using the same device. 1. The method of spraying powder material including the gas supply portions during expansion of the gas stream in the process of movement, characterized in that the gas to carry out high-speed portions by repeated sudden expansion of a gas stream under conditions of turbulence in the past, the characteristics of the gas flow is adjusted depending on the amount of spray powder and its physico-chemical characteristics. 2. Device for spraying powder material containing hopper with powder material transport tion with the hopper, an additional channel, characterized in that it comprises a hopper, a supply valve to a given high-speed portion of gas in the transport line and an additional controllable nozzle, which is connected by highway with the gas source and transport route.
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