Cement kiln energy-saving admixture with rare earth and its preparation method
AssigneesBaotou Hongrun Rare Earth Teciinology Co.,Ltd., Beijing Hongkeruida Engineering Co.,Ltd.
InventorsJinzheng HE, Jun ZHANG, Lixin LU, Quansen ZHANG
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Abstract
This invention discloses a rare earth energy-saving admixture and its preparation method for cement kilns, involving the field of energy saving and emission reduction technology for cement kilns. The invention, without changing or minimally changing existing hardware equipment, reduces the thermal consumption of the production system and sulfur-nitrogen and sulfur emissions by conducting a thermodynamic diagnosis and calculating the amount of rare earth energy-saving admixture to be added, thereby saving the cost of retrofitting large hardware equipment.
Claims5
A rare earth energy-saving admixture for cement kilns, characterized in that, calculated by mass fraction, it includes 4-22% rare earth composite oxides, 31-49% urea, and 30-49% gypsum.
Dependencies are inferred from the claim text.