Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to an improved cement grinding aid. The improved cement grinding aid is characterized by comprising components in parts by weight as follows: 15-25 parts of triethanolamine, 2-8 parts of polytetrafluoroethene, 3-6 parts of propylene glycol, 2-5 parts of xanthan gum, 5-10 parts of sodium nitrite, 3-8 parts of calcium lignosulfonate, 5-10 parts of sodium acetate, 5-10 parts of a water-retention material, 5-10 parts of a papermaking black liquid, 6-12 parts of industrial salt and 5-10 parts of molasses. With the adoption of the improved cement grinding aid, the grinding efficiency of a cement mill can be remarkably improved by 8%-15%, the early strength of cement can be properly increased by 2-3 MPa, and the late strength of the cement can be increased by 2-4 MPa, and the formula of the improved cement grinding aid contains no harmful ingredient and meet the requirement of environment protection; the components cooperate with one another, and the adaptability of the grinding aid is improved, so that the grinding aid is applicable to cement at different grades, the use range is widened, the grinding aiding effect is greatly improved, the machine-hour yield is also increased, the energy consumption is reduced, and the mixing amount is little and accounts for 0.02-0.05% in per ton of cement.
The invention relates to an improved cement grinding aid. The improved cement grinding aid is characterized by comprising components in parts by weight as follows: 15-25 parts of triethanolamine, 2-8 parts of polytetrafluoroethene, 3-6 parts of propylene glycol, 2-5 parts of xanthan gum, 5-10 parts of sodium nitrite, 3-8 parts of calcium lignosulfonate, 5-10 parts of sodium acetate, 5-10 parts of a water-retention material, 5-10 parts of a papermaking black liquid, 6-12 parts of industrial salt and 5-10 parts of molasses. With the adoption of the improved cement grinding aid, the grinding efficiency of a cement mill can be remarkably improved by 8%-15%, the early strength of cement can be properly increased by 2-3 MPa, and the late strength of the cement can be increased by 2-4 MPa, and the formula of the improved cement grinding aid contains no harmful ingredient and meet the requirement of environment protection; the components cooperate with one another, and the adaptability of the grinding aid is improved, so that the grinding aid is applicable to cement at different grades, the use range is widened, the grinding aiding effect is greatly improved, the machine-hour yield is also increased, the energy consumption is reduced, and the mixing amount is little and accounts for 0.02-0.05% in per ton of cement.
Powdery cement grinding aid for promoting cement grinding
| Europäisches Patentamt | 2024
Engineering Index Backfile | 1929