The Effect of Different Grinding Technologies on the Mechanical Properties of Portland cement depends on the Type of Intensifier

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU150063" target="_blank" >RIV/00216305:26110/23:PU150063 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/SSP.352.103" target="_blank" >https://www.scientific.net/SSP.352.103</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/p-kins9I" target="_blank" >10.4028/p-kins9I</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Different Grinding Technologies on the Mechanical Properties of Portland cement depends on the Type of Intensifier

Popis výsledku v původním jazyce

Cement production is currently very energy-intensive, with the grinding process consuming the majority of the total energy in cement production. Therefore, there is a constant search for ways to reduce this amount of energy while maintaining the same grinding efficiency. The main goal of the article is to investigate the effect of grinding intensifiers, which should reduce the energy needed to grind raw materials. Potentially usable technologies in the field of mechanochemical activation are investigated, i.e., high-speed grinding through grinding in a laboratory planetary mill and disintegrator. High-speed disintegrator grinding technology is much more efficient than planetary grinding technology. Already during the first passage through the disintegrator, an increase in the specific surface area from 200 m2/kg to 280 m2/kg was recorded, with an estimated stay of the particle in the grinding space for 3-5 seconds. Using a planetary mill, the particles would have to remain in the grinding chamber for approximately 2 minutes to achieve such an increase in specific surface area. However, with further drops, the efficiency decreases, which is due to the high tendency to aggregation and agglomeration in this milling technology

Název v anglickém jazyce

The Effect of Different Grinding Technologies on the Mechanical Properties of Portland cement depends on the Type of Intensifier

Popis výsledku anglicky

Cement production is currently very energy-intensive, with the grinding process consuming the majority of the total energy in cement production. Therefore, there is a constant search for ways to reduce this amount of energy while maintaining the same grinding efficiency. The main goal of the article is to investigate the effect of grinding intensifiers, which should reduce the energy needed to grind raw materials. Potentially usable technologies in the field of mechanochemical activation are investigated, i.e., high-speed grinding through grinding in a laboratory planetary mill and disintegrator. High-speed disintegrator grinding technology is much more efficient than planetary grinding technology. Already during the first passage through the disintegrator, an increase in the specific surface area from 200 m2/kg to 280 m2/kg was recorded, with an estimated stay of the particle in the grinding space for 3-5 seconds. Using a planetary mill, the particles would have to remain in the grinding chamber for approximately 2 minutes to achieve such an increase in specific surface area. However, with further drops, the efficiency decreases, which is due to the high tendency to aggregation and agglomeration in this milling technology

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA20-00676S" target="_blank" >GA20-00676S: Vliv mechano-chemické aktivace na proces vzniku, strukturu a stabilitu vybraných slínkových minerálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Nanomaterials, Polymers and Composites

ISBN

978-3-0364-0202-4

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

103-107

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

Switzerland

Místo konání akce

Brno

Datum konání akce

8. 12. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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