Preparation process of high-grade cement based on modified fluorgypsum

Abstract

The invention discloses a preparation process of high-grade cement based on modified fluorgypsum, which relates to the technical field of cement production, and comprises the following steps: crushingand grinding cement raw materials, and proportionally mixing into a mixture; starting a raw material mill to grind into cement raw material powder; pouring the cement raw material powder into the stirrer for stirring; collecting angular velocity data of two motors of the stirrer, and solving a difference value according to the angular velocity data of the two motors when the fluctuation values ofthe angular velocities of the two motors are both smaller than a first preset value; when the difference value is smaller than a second preset value, judging that the raw material powder is calcinedinto cement clinker after being uniformly stirred; and grinding the cement clinker, the modified fluorgypsum and the admixture to preset fineness to obtain cement. According to the method, the mixinguniformity degree of the cement raw material powder is represented by solving the angular speed difference of the two motors after the stability of the angular speed is solved, calcination in the following steps is facilitated, the utilization rate of energy and time can be effectively increased, and the quality of produced cement is improved.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a process for preparing high-grade cement based on modified fluorogypsum. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It can be mixed with water to form a slurry. It can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. Early lime and The mixture of volcanic ash is very similar to the modern lime pozzolanic cement. It is used to bond the concrete made of crushed stone. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water. It has been used as an important glue for a long time. Concrete material, widely used in civil construction, water conservancy, national defense and other projects. [0003] Cement production can be divided into dry method (including semi-dry method) and wet method (including semi-wet metho...

AI Technical Summary

Problems solved by technology

The dry method refers to the method of drying and grinding the raw materials at the same time, or first drying and grinding the raw material powder and then feeding it into the dry kiln to calcinate the clinker. The main advantage of the dry method is low heat consumption, and the disadvantage is The composition of the raw material is not easy to be uniform, and the power consumption is high

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