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Information × Registration Number 0214U002117, 0112U000496 , R & D reports Title Development and implementation of software system technology injection of powdered materials in melts and aggregates. popup.stage_title Head Kharlashin Petr, Registration Date 20-01-2014 Organization State Higher Educational Institution "Pryazovskyi State Technical University" popup.description2 Object of research - the creation of software systems technology blowing powdery materials in melts and units,including two-speed two-temperature quasi-stationary mono-and polydisperse flow of low, medium, high Occupational powders with different particle sizes. Purpose - to develop software for the newest modes of transportation and injection of powdered materials in melts and metallurgical aggregates and implementation results in the ferrous metallurgy, which will significantly streamline processes in metallurgy. The method of investigation - the numerical solution of differential and algebraic equations (~ 300) to intensify the process of combustion of pulverized coal in the blast furnace tuyere hearth, intensification melt mixing in deep desulphurization technology, increasing capacity of the jets in the final blow in a basic oxygen furnace slag. Subject of research - pyletransportnye system for feeding pulverized coal into the furnace blast furnace tuyere combustion in the hearth, fuel injectors mounted on the blast furnaces where pulverized coal is introduced, devices for deep desulphurization in the ladle. The technical proposals to secure the production conditions PAO Mariupol. Illich and "Iron & Steel Works" effective implementation of technology with blast furnace coal injection of more than 120 kg / t of pig iron. Proposals as when applying a blast furnace process and the powder primarily pulverized fuel to reduce their energy costs for transporting almost 2 times. The technique of gas-dynamic calculation of the fuel injector operating blast furnaces to reflect changes in a wide range of the main parameters of the gas suspension - powder concentration and particle diameter. First gas-dynamic calculations with parameters gaspowder flow along the length of the nozzle for pulverized coal injection into the blast furnace were divided in phases . It is shown that coal-fired blast furnace nozzle number 1 , 3.4 MK them . Ilyich inner diameter 12mm tubes ( China Shipping ) selected the wrong - in a wide range of flow velocity of the powder particles of coal remains moderate (40 - 70 m / c), and it is necessary to reduce the diameter to 16 mm. The novelty of the work is the following : first calculation carried out starting from the input parameters in the lance set only when the flow rate of carrier gas , powder , diameter of the lance and the output section of the recess in the metal and not the parameters of the expiry of the nozzle , recessed into the metal , which anyone is not known. Shown that if we consider the rebound particles from the wall , it actually appears the third phase - the phase of the reflected particles from the wall to inhibit gas-dispersed flow . It was shown that on heating gas-dispersed flow total momentum can be increased to ~ 1.5 - 2 times . Using two - and multi-speed , two-and -powder multitemperature flow model flow in the lance injection process powders melt bucket allowed to establish ~ 20 physical effects on ~ 30 hard-to- gas-dispersed flow parameters and thus to develop recommendations to improve the most important metallurgical technologies . Product Description popup.authors Грігор'єва Марія Олександрівна Куземко Руслан Дмитрович Харлашин Петро Степанович Яценко Андрій Миколаєвич popup.nrat_date 2020-04-02 Close