4 research outputs found
The Mechanical Activation of Crystal and Wooden Sawdust Cellulose in Various Fine-Grinding Mills
ΠΠ»Ρ Π²ΡΠ±ΠΎΡΠ° Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ
ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ²
ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Ρ ΠΈ Π»ΠΈΠ³Π½ΠΎΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Π½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ (Π²ΡΡΡΡΠ΅Π½Π½ΡΠ΅ Π±Π΅ΡΠ΅Π·ΠΎΠ²ΡΠ΅
ΠΎΠΏΠΈΠ»ΠΊΠΈ) Π² ΠΌΠ΅Π»ΡΠ½ΠΈΡΠ°Ρ
ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ (Π²Π°Π»ΡΡΠΎΠ²Π°Ρ, ΠΏΠ»Π°Π½Π΅ΡΠ°ΡΠ½Π°Ρ, ΡΠΎΡΠΎΡΠ½Π°Ρ, Π²ΠΈΡ
ΡΠ΅Π²Π°Ρ
Π³Π°Π·ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΈ Π²ΠΈΡ
ΡΠ΅Π²Π°Ρ Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΠ°Π·Π³ΠΎΠ½ΠΎΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°) Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠΈΠ·ΠΈΠΊΠΎ-
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΎΠΌΠΎΠ»Π°. ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΡΠ°Π·ΠΎΠ²ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° (Π Π€Π)
ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΡΠ°Π·, ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΈΠ½Π΄Π΅ΠΊΡ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ½ΠΎΡΡΠΈ (ΠΠ) ΠΈ ΡΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ
ΠΎΠ±Π»Π°ΡΡΠ΅ΠΉ ΠΊΠΎΠ³Π΅ΡΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΠ΅ΡΠ½ΠΈΡ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΠΈΡ
ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ.
ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡ ΠΈ ΡΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ ΡΠ°ΡΡΠΈΡ (l).
Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π΄Π»Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅Π³ΠΎ Π±ΠΎΠ»Π΅Π΅ Π΄Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ Π²ΡΠ±ΡΠ°Π½
ΠΌΠ΅ΡΠΎΠ΄ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π»ΠΈΠ³Π½ΠΎΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Π½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Π² ΡΠ΄Π°ΡΠ½ΠΎΠΉ Π²ΠΈΡ
ΡΠ΅Π²ΠΎΠΉ ΠΌΠ΅Π»ΡΠ½ΠΈΡΠ΅ Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ
ΡΠ°Π·Π³ΠΎΠ½ΠΎΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°, ΠΊΠ°ΠΊ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠΈΠΉ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ Π·Π°ΡΡΠ°ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΈ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ
ΠΏΡΠΈ ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ, ΠΏΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π΄Π»Ρ
Π²ΡΡΡΡΠ΅Π½Π½ΡΡ
Π±Π΅ΡΡΠ·ΠΎΠ²ΡΡ
ΠΎΠΏΠΈΠ»ΠΎΠΊ (l ~ 22 ΠΌΠΊΠΌ ΠΈ ΠΠ = 56 % ΠΏΡΠΈ l ~ 3700 ΠΌΠΊΠΌ ΠΈ ΠΠ =74 % Π΄Π»Ρ
ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΡΡΡΡ)The study is aimed to determine the most perspective and effective fine-grinding mills for lignocellulosic
biomass mechanical activation. Physicochemical characteristics were studied for milled crystalline
cellulose and milled dry birch sawdust after their treatment in various devices β ball, planetary, ring,
vortex gas driven and vortex mechanically driven mills. XRD analysis method was used for phases
identification, crystallinity index (CI) and mean size of coherent-scattering region (CSR) measuring.
These values are suggested to be used for an assessment of the efficiency of mechanical activation
process. Mean particle size (l) of milled materials was measured with help of optic microscopy as well.
As the most perspective device for future detailed investigation to be done the vortex mechanically
driven mill is selected. This type of mill provides both the least electrical power consumption and
activation time at adequate particles destruction level and marked mechanical activation demonstrated
for dry birch saw dust (it was detected the reduction of l and CI from l ~ 3700 ΞΌm/CI =74 % to
l ~ 22 ΞΌm/CI = 56 %
Comparing Ranque tubes of circular and square cross section
The efficiency of temperature end energy separation is compared for Ranque tubes of circular and square cross section, with the square side equal to the circle diameter. The βsquareβ tube demonstrates approximately two times less efficiency, yet the separation effect still being evidently presented
Comparing Ranque tubes of circular and square cross section
The efficiency of temperature end energy separation is compared for Ranque tubes of circular and square cross section, with the square side equal to the circle diameter. The βsquareβ tube demonstrates approximately two times less efficiency, yet the separation effect still being evidently presented
The Mechanical Activation of Crystal and Wooden Sawdust Cellulose in Various Fine-Grinding Mills
ΠΠ»Ρ Π²ΡΠ±ΠΎΡΠ° Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΠΎΠ±Π° ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ
ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ²
ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Ρ ΠΈ Π»ΠΈΠ³Π½ΠΎΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Π½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ (Π²ΡΡΡΡΠ΅Π½Π½ΡΠ΅ Π±Π΅ΡΠ΅Π·ΠΎΠ²ΡΠ΅
ΠΎΠΏΠΈΠ»ΠΊΠΈ) Π² ΠΌΠ΅Π»ΡΠ½ΠΈΡΠ°Ρ
ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ (Π²Π°Π»ΡΡΠΎΠ²Π°Ρ, ΠΏΠ»Π°Π½Π΅ΡΠ°ΡΠ½Π°Ρ, ΡΠΎΡΠΎΡΠ½Π°Ρ, Π²ΠΈΡ
ΡΠ΅Π²Π°Ρ
Π³Π°Π·ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΈ Π²ΠΈΡ
ΡΠ΅Π²Π°Ρ Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΠ°Π·Π³ΠΎΠ½ΠΎΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°) Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠΈΠ·ΠΈΠΊΠΎ-
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΎΠΌΠΎΠ»Π°. ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΡΠ°Π·ΠΎΠ²ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° (Π Π€Π)
ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΡΠ°Π·, ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΈΠ½Π΄Π΅ΠΊΡ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ½ΠΎΡΡΠΈ (ΠΠ) ΠΈ ΡΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ
ΠΎΠ±Π»Π°ΡΡΠ΅ΠΉ ΠΊΠΎΠ³Π΅ΡΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΠ΅ΡΠ½ΠΈΡ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΠΈΡ
ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ.
ΠΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡ ΠΈ ΡΡΠ΅Π΄Π½ΠΈΠΉ ΡΠ°Π·ΠΌΠ΅Ρ ΡΠ°ΡΡΠΈΡ (l).
Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π΄Π»Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅Π³ΠΎ Π±ΠΎΠ»Π΅Π΅ Π΄Π΅ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ Π²ΡΠ±ΡΠ°Π½
ΠΌΠ΅ΡΠΎΠ΄ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π»ΠΈΠ³Π½ΠΎΡΠ΅Π»Π»ΡΠ»ΠΎΠ·Π½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Π² ΡΠ΄Π°ΡΠ½ΠΎΠΉ Π²ΠΈΡ
ΡΠ΅Π²ΠΎΠΉ ΠΌΠ΅Π»ΡΠ½ΠΈΡΠ΅ Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌ
ΡΠ°Π·Π³ΠΎΠ½ΠΎΠΌ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°, ΠΊΠ°ΠΊ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠΈΠΉ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ Π·Π°ΡΡΠ°ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΈ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ
ΠΏΡΠΈ ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ, ΠΏΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π΄Π»Ρ
Π²ΡΡΡΡΠ΅Π½Π½ΡΡ
Π±Π΅ΡΡΠ·ΠΎΠ²ΡΡ
ΠΎΠΏΠΈΠ»ΠΎΠΊ (l ~ 22 ΠΌΠΊΠΌ ΠΈ ΠΠ = 56 % ΠΏΡΠΈ l ~ 3700 ΠΌΠΊΠΌ ΠΈ ΠΠ =74 % Π΄Π»Ρ
ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΡΡΡΡ)The study is aimed to determine the most perspective and effective fine-grinding mills for lignocellulosic
biomass mechanical activation. Physicochemical characteristics were studied for milled crystalline
cellulose and milled dry birch sawdust after their treatment in various devices β ball, planetary, ring,
vortex gas driven and vortex mechanically driven mills. XRD analysis method was used for phases
identification, crystallinity index (CI) and mean size of coherent-scattering region (CSR) measuring.
These values are suggested to be used for an assessment of the efficiency of mechanical activation
process. Mean particle size (l) of milled materials was measured with help of optic microscopy as well.
As the most perspective device for future detailed investigation to be done the vortex mechanically
driven mill is selected. This type of mill provides both the least electrical power consumption and
activation time at adequate particles destruction level and marked mechanical activation demonstrated
for dry birch saw dust (it was detected the reduction of l and CI from l ~ 3700 ΞΌm/CI =74 % to
l ~ 22 ΞΌm/CI = 56 %