Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special grinding aid for grinding cement by vertical mill and application thereof
The invention discloses a special grinding aid for grinding cement by a vertical mill and application thereof. The grinding aid comprises the following raw materials in percentage by weight: 5-40% of water-soluble polyester; 5-20% of an inorganic dispersion enhancer; 5-20% of polyol or alcohol amine; 40-70% of water; in the formula of the special grinding aid for grinding the cement by the vertical mill, the high viscosity of the water-soluble polyester can inhibit the dispersion effect of the grinding aid in the grinding process so as to stabilize the material layer, the material is sufficiently ground by the grinding roller on the grinding disc, and along with the proceeding of the cement grinding, the water-soluble polyester is hydrolyzed or cracked into polyol, and/or alcohol amine, polybasic acid and a low-molecular-weight water-soluble polyester polymer in a high-temperature and alkaline environment under the grinding pressure of the grinding roller, and the low-molecular-weight water-soluble polyester polymer is matched with polyol, and/or alcohol amine and an inorganic dispersion enhancer in the formula of the grinding aid to improve the dispersity of the ground fine powder and improve the powder selecting efficiency.
本发明公开了一种立磨粉磨水泥专用助磨剂及其应用，所述助磨剂包括以下重量百分比的原料：水溶性聚酯5‑40％；无机分散增强剂5‑20％；多元醇或醇胺5‑20％；水40‑70％；本发明提供的立磨粉磨水泥专用助磨剂的配方中，水溶性聚酯具有的高粘度可抑制助磨剂在粉磨过程中的分散作用以稳定料层，使物料在在磨盘上得到磨辊的充分的碾磨，随着水泥粉磨的进行，水溶性聚酯在高温和碱性环境以及磨辊的碾压力下水解或裂解成多元醇、和/或醇胺和多元酸以及低分子量水溶性聚酯聚合物，其与助磨剂配方中的多元醇、和/或醇胺以及无机分散增强剂配合来提高粉磨后的细粉的分散性，提高选粉效率。
Special grinding aid for grinding cement by vertical mill and application thereof
The invention discloses a special grinding aid for grinding cement by a vertical mill and application thereof. The grinding aid comprises the following raw materials in percentage by weight: 5-40% of water-soluble polyester; 5-20% of an inorganic dispersion enhancer; 5-20% of polyol or alcohol amine; 40-70% of water; in the formula of the special grinding aid for grinding the cement by the vertical mill, the high viscosity of the water-soluble polyester can inhibit the dispersion effect of the grinding aid in the grinding process so as to stabilize the material layer, the material is sufficiently ground by the grinding roller on the grinding disc, and along with the proceeding of the cement grinding, the water-soluble polyester is hydrolyzed or cracked into polyol, and/or alcohol amine, polybasic acid and a low-molecular-weight water-soluble polyester polymer in a high-temperature and alkaline environment under the grinding pressure of the grinding roller, and the low-molecular-weight water-soluble polyester polymer is matched with polyol, and/or alcohol amine and an inorganic dispersion enhancer in the formula of the grinding aid to improve the dispersity of the ground fine powder and improve the powder selecting efficiency.
本发明公开了一种立磨粉磨水泥专用助磨剂及其应用，所述助磨剂包括以下重量百分比的原料：水溶性聚酯5‑40％；无机分散增强剂5‑20％；多元醇或醇胺5‑20％；水40‑70％；本发明提供的立磨粉磨水泥专用助磨剂的配方中，水溶性聚酯具有的高粘度可抑制助磨剂在粉磨过程中的分散作用以稳定料层，使物料在在磨盘上得到磨辊的充分的碾磨，随着水泥粉磨的进行，水溶性聚酯在高温和碱性环境以及磨辊的碾压力下水解或裂解成多元醇、和/或醇胺和多元酸以及低分子量水溶性聚酯聚合物，其与助磨剂配方中的多元醇、和/或醇胺以及无机分散增强剂配合来提高粉磨后的细粉的分散性，提高选粉效率。
Special grinding aid for grinding cement by vertical mill and application thereof
一种立磨粉磨水泥专用助磨剂及其应用
MENG FANJUN (Autor:in) / CHEN FENG (Autor:in) / ZENG JUN (Autor:in) / ZHAO WEI (Autor:in) / PAN YUJIE (Autor:in) / WU CHUNJIANG (Autor:in) / ZHANG SHENGNAN (Autor:in)
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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