7 research outputs found

    Mathematical Modeling of Electrolyte Filtration through the Porous Cathode Blocks during Aluminum Electrolysis with Regard Interblock Seams

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    This article investigates electrolyte filtration in the bottom of the aluminum electrolyzer cathode device using the mathematical modeling. Penetration of molten electrolyte in the heat insulation part of the lining is one of the main reasons of electrolyzer premature shutdown, because it leads to bottom destruction and excessive heat loss. This problem is considered a two-phase filtration of incompressible immiscible liquids in an inhomogeneous non-deformable porous body. The verification of the model on the problem of water filtration pin a porous medium has confirmed its adequacy. With the help of the developed mathematical model the dynamics of the impregnation of the lining of the cathode and electrolyte device defined thermal balance baths. Research has identified the speed of penetration of the melt in the bottom of the bath during service of the electrolyzer

    Experience of Application Semicokes Lignite as Barrier Materials in the Production of Primary Aluminium Cells

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    Π¨Π²Ρ‹ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… тСплоизоляционных ΠΈ ΠΎΠ³Π½Π΅ΡƒΠΏΠΎΡ€Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² ΡΠ½ΠΈΠΆΠ°ΡŽΡ‚ Π³Π°Π·ΠΎΠΏΠ»ΠΎΡ‚Π½ΠΎΡΡ‚ΡŒ ΠΊΠ»Π°Π΄ΠΊΠΈ ΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ мСстом проникновСния Π³Π°Π·ΠΎΠΎΠ±Ρ€Π°Π·Π½Ρ‹Ρ… ΠΈ ΠΆΠΈΠ΄ΠΊΠΈΡ… ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² Π² Ρ‚Π΅ΠΏΠ»ΠΎΠΈΠ·ΠΎΠ»ΡΡ†ΠΈΠΎΠ½Π½ΡƒΡŽ Ρ‡Π°ΡΡ‚ΡŒ элСктролизСров. Π­Ρ‚ΠΎ ΠΏΡ€ΠΈΠ²ΠΎΠ΄ΠΈΡ‚ ΠΊ росту Ρ‚Π΅ΠΏΠ»ΠΎΠ²Ρ‹Ρ… ΠΏΠΎΡ‚Π΅Ρ€ΡŒ ΠΈ ΡΠΎΠΊΡ€Π°Ρ‰Π΅Π½ΠΈΡŽ срока слуТбы элСктролизСров. НСформованныС ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹, находящиСся Π² диспСрсном состоянии, Π² Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ Π»ΠΈΡˆΠ΅Π½Ρ‹ Ρ‚Π°ΠΊΠΈΡ… нСдостатков. Высокая ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΈ ΠΈΡ… ΠΈΠ·Π³ΠΎΡ‚ΠΎΠ²Π»Π΅Π½ΠΈΠΈ ΠΈ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ слуТит ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Ρ€Π°ΡΡˆΠΈΡ€Π΅Π½ΠΈΡ ΠΌΠ°ΡΡˆΡ‚Π°Π±ΠΎΠ² ΠΈΡ… примСнСния. Однако Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ Ρ‚Ρ‰Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Π±ΠΎΡ€Π° распрСдСлСния частиц ΠΏΠΎ Ρ€Π°Π·ΠΌΠ΅Ρ€Π°ΠΌ ΠΈ сильного уплотнСния сухих Π±Π°Ρ€ΡŒΠ΅Ρ€Π½Ρ‹Ρ… смСсСй, Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΡ… расфракционирования ΠΏΡ€ΠΈ ΠΈΡ… инсталляции ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΈΡ… ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ ΠΈ ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹Ρ…, тСорСтичСских ΠΈ ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½Ρ‹Ρ… испытаний Π½ΠΎΠ²ΠΎΠ³ΠΎ Π½Π΅Ρ„ΠΎΡ€ΠΌΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° с использованиСм ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Π° ΠΏΠΈΡ€ΠΎΠ»ΠΈΠ·Π° канско-ачинских ΡƒΠ³Π»Π΅ΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΈΠΌΠ΅Π΅Ρ‚ прСимущСства ΠΏΠΎ ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡŽ ΠΊ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌ – Ρ…ΠΎΡ€ΠΎΡˆΠΈΠ΅ физичСскиС ΠΈ Ρ€Π°Π±ΠΎΡ‡ΠΈΠ΅ свойства ΠΈ Π½Π΅Π²Ρ‹ΡΠΎΠΊΡƒΡŽ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒSeams of traditional insulating and refractory materials, reduce gas-density of a laying and are places of receipt of aggressive liquid and gaseous components in heat-insulating part of cells cathodes. It causes growth of thermal losses and reduces cells service life. Unshaped material materials which are in a disperse state are considerably deprived of such shortcomings. High efficiency at their production and application caused expansion of scales of their application. However need of careful selection of particle size distribution and strong consolidation of dry barrier mixes, possibility of their division according to fractions in the course of installation increases their cost and imposes certain restrictions on their use. In work results of laboratory, theoretical and industrial researches new unshaped materials with use of products of pyrolysis of coals of the Kansk and Achinsk pool which advantage in relation to the traditional unshaped materials is good physical and working properties and low cost are presente

    Mathematical Modeling of Electrolyte Filtration through the Porous Cathode Blocks during Aluminum Electrolysis with Regard Interblock Seams

    No full text
    This article investigates electrolyte filtration in the bottom of the aluminum electrolyzer cathode device using the mathematical modeling. Penetration of molten electrolyte in the heat insulation part of the lining is one of the main reasons of electrolyzer premature shutdown, because it leads to bottom destruction and excessive heat loss. This problem is considered a two-phase filtration of incompressible immiscible liquids in an inhomogeneous non-deformable porous body. The verification of the model on the problem of water filtration pin a porous medium has confirmed its adequacy. With the help of the developed mathematical model the dynamics of the impregnation of the lining of the cathode and electrolyte device defined thermal balance baths. Research has identified the speed of penetration of the melt in the bottom of the bath during service of the electrolyzer

    Experience of Application Semicokes Lignite as Barrier Materials in the Production of Primary Aluminium Cells

    No full text
    Π¨Π²Ρ‹ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… тСплоизоляционных ΠΈ ΠΎΠ³Π½Π΅ΡƒΠΏΠΎΡ€Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² ΡΠ½ΠΈΠΆΠ°ΡŽΡ‚ Π³Π°Π·ΠΎΠΏΠ»ΠΎΡ‚Π½ΠΎΡΡ‚ΡŒ ΠΊΠ»Π°Π΄ΠΊΠΈ ΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ мСстом проникновСния Π³Π°Π·ΠΎΠΎΠ±Ρ€Π°Π·Π½Ρ‹Ρ… ΠΈ ΠΆΠΈΠ΄ΠΊΠΈΡ… ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚ΠΎΠ² Π² Ρ‚Π΅ΠΏΠ»ΠΎΠΈΠ·ΠΎΠ»ΡΡ†ΠΈΠΎΠ½Π½ΡƒΡŽ Ρ‡Π°ΡΡ‚ΡŒ элСктролизСров. Π­Ρ‚ΠΎ ΠΏΡ€ΠΈΠ²ΠΎΠ΄ΠΈΡ‚ ΠΊ росту Ρ‚Π΅ΠΏΠ»ΠΎΠ²Ρ‹Ρ… ΠΏΠΎΡ‚Π΅Ρ€ΡŒ ΠΈ ΡΠΎΠΊΡ€Π°Ρ‰Π΅Π½ΠΈΡŽ срока слуТбы элСктролизСров. НСформованныС ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹, находящиСся Π² диспСрсном состоянии, Π² Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΌΠ΅Ρ€Π΅ Π»ΠΈΡˆΠ΅Π½Ρ‹ Ρ‚Π°ΠΊΠΈΡ… нСдостатков. Высокая ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΈ ΠΈΡ… ΠΈΠ·Π³ΠΎΡ‚ΠΎΠ²Π»Π΅Π½ΠΈΠΈ ΠΈ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ слуТит ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Ρ€Π°ΡΡˆΠΈΡ€Π΅Π½ΠΈΡ ΠΌΠ°ΡΡˆΡ‚Π°Π±ΠΎΠ² ΠΈΡ… примСнСния. Однако Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ Ρ‚Ρ‰Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Π±ΠΎΡ€Π° распрСдСлСния частиц ΠΏΠΎ Ρ€Π°Π·ΠΌΠ΅Ρ€Π°ΠΌ ΠΈ сильного уплотнСния сухих Π±Π°Ρ€ΡŒΠ΅Ρ€Π½Ρ‹Ρ… смСсСй, Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΡ… расфракционирования ΠΏΡ€ΠΈ ΠΈΡ… инсталляции ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΈΡ… ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ ΠΈ ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€Π½Ρ‹Ρ…, тСорСтичСских ΠΈ ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½Ρ‹Ρ… испытаний Π½ΠΎΠ²ΠΎΠ³ΠΎ Π½Π΅Ρ„ΠΎΡ€ΠΌΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° с использованиСм ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Π° ΠΏΠΈΡ€ΠΎΠ»ΠΈΠ·Π° канско-ачинских ΡƒΠ³Π»Π΅ΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΈΠΌΠ΅Π΅Ρ‚ прСимущСства ΠΏΠΎ ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡŽ ΠΊ Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌ – Ρ…ΠΎΡ€ΠΎΡˆΠΈΠ΅ физичСскиС ΠΈ Ρ€Π°Π±ΠΎΡ‡ΠΈΠ΅ свойства ΠΈ Π½Π΅Π²Ρ‹ΡΠΎΠΊΡƒΡŽ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒSeams of traditional insulating and refractory materials, reduce gas-density of a laying and are places of receipt of aggressive liquid and gaseous components in heat-insulating part of cells cathodes. It causes growth of thermal losses and reduces cells service life. Unshaped material materials which are in a disperse state are considerably deprived of such shortcomings. High efficiency at their production and application caused expansion of scales of their application. However need of careful selection of particle size distribution and strong consolidation of dry barrier mixes, possibility of their division according to fractions in the course of installation increases their cost and imposes certain restrictions on their use. In work results of laboratory, theoretical and industrial researches new unshaped materials with use of products of pyrolysis of coals of the Kansk and Achinsk pool which advantage in relation to the traditional unshaped materials is good physical and working properties and low cost are presente
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